Equalising valve

FIELD: construction.

SUBSTANCE: group of inventions relates to valve building and is designed for equalisation of pressures in hydraulic networks of buildings, in which fluid medium flow rate is different and depends on a season. Equalising valve (1) with damper (2) has inlet (A) and outlet (B) and is installed after temperature-controlled element (3) connected to branch (4) of hydraulic network (5) with generally constant pressure (ΔP). The equalising valve is provided with measuring devices (7) of characteristic value of fluid medium circulating through equalising valve (1), position control devices (8) of damper (2) of equalising valve (1), data storage devices (11), in which internal and external parameters of equalising valve (1) are stored, and independent processing devices (10), which are designed so that automatic equalisation in branch (4) can be provided using magnitudes of characteristic value of fluid medium, which are obtained by means of measuring devices (7), control devices (8) and data stored in storage devices (11). There are methods for implementation of the above pressure equalisation operations.

EFFECT: group of inventions is aimed at easy operation, accessibility for any user, saving of time during installation and funds during the service life.

14 cl, 6 dwg

 

The invention relates to hydraulic systems in buildings, in particular to an equalizing valve with damper having an input and an output and set for thermostatic element included in the hydraulic network with essentially constant pressure.

The equalizing valve is, by definition, a device designed to control the intake pressure in the branches of a hydraulic network that contains a thermostatic element, such as thermostatic valves for radiators in the branches of the heating networks or control valves for the convection fans in the branches of networks of air conditioning.

The equalizing valve is a key element that ensure compliance with the standards of rational use of energy in new buildings according to the classification: Building with Low Consumption SNP (air force), Exceptionally High Energy Performance of IITA (TRE), Exceptionally High Energy Performance and Renewable Energy, IITA RES (TRE EnR) and, as we should expect in the near future the class: Building Ultra-low-Power, SUE (Effinergy), or compliance with other standards related to environmental and/or thermal characteristics.

In hydraulic systems in buildings pressure equalization is the final stage of installation. Its purpose is to ensure races�for determining heat a fluid in accordance with the needs of the building, that involves maintaining the required flow rate in an appropriate place.

The hydraulic processes in dynamic networks, heat demand, and therefore, the flow rate of the fluid are different and depend on the time of year, orientation of the building and the type of activity, but in most installed systems is the use of surge valves, providing the ability to adjust in those times when you need the most heat.

Known system of regulation of the circulation in the fluid systems of buildings using an equalizing and regulating valves, for example, using the Central processing unit determining whether to modify the settings of the regulating valve. All changes made to the work of regulating valves, entail the need for new adjustments equalizing valves.

Anyway, for such valves, it is necessary to use a centralized processing system with remote means of communication to ensure consistency of adjustments and diagnostics network.

In addition, in the case of using remote means of communication, in particular wireless, with all control valves, equalizing valves, and a Central processing unit, a reduction in the reliability of equalisation valves, not receiving one�same signals from the specified processing unit.

Regulation equalization valves is a fairly complex and expensive operation that requires the use of software tools, designed specifically to such adjustment, and special knowledge in the field of hydraulics. Due to the hydraulic interactions between the different branches of the network such adjustment is difficult without the use of special methods and/or tools.

Above is due to the simple fact that such equalizing valves are fitted at different distances from a centralized processing system, and the signals from this system, you have to overcome all sorts of walls and partitions of different thicknesses, which significantly decreases their amplitude.

The invention aims to fully or partially eliminate the above disadvantages.

To achieve this goal is proposed equalizing valve with a valve that has an inlet and outlet and is installed for the temperature-controlled element included in the branch of the hydraulic network with essentially constant pressure (ΔP), characterized in that it is provided with devices for measuring characteristic values of the fluid circulating through the automatic equalizing valve, the control valve automatic balancing valve, �sredstvami storage which store internal and external parameters of the equalizing valve, and independent means of treatment, designed to provide automatic alignment in the branch, using the values of the characteristic value of the fluid obtained by the measuring means, controls, and data stored in the storing means.

Thus, the obtained equalization valve, automatically functioning regardless of interference in the network, with automatic adjustment required under the hydraulic regimes and operating with full autonomy without the need for the Central processing system.

- Implemented automatic alignment can be used in static alignment, and/or dynamic equalization, and/or alignment with the connection.

In accordance with one variant of implementation, processing tools provide automatic, so-called "static", alignment, wherein the parameters stored in the storing means of the data, together with measurements obtained by the measuring means, for the purpose of obtaining reference values characteristic of the hydraulic network.

In accordance with another variant of implementation, processing tools provide automatic, so-called�my "dynamic" alignment, wherein the reference value is preferably defined above are used to control the operation of the position control valve to maintain the differential pressure or flow rate at essentially constant flow rate in the branch of the hydraulic network (ΔP), which includes an equalizing valve.

In accordance with another alternative implementation, the processing means provide for the exchange and change the alignment to adapt and diagnosis of the whole hydraulic network.

In accordance with the following variant of implementation, the processing means provide a connection for valves with Central unit to control and change the reference values and thereby reduce the hydraulic losses in the network and quantify the energy benefits of generation and distribution.

By this means the processing, which gives an idea about the installation as a whole, provided the speed of diagnosis and recovery measures, corrective or administrative nature.

In accordance with one variant of implementation, the measured characteristic value circulating through the surge valve fluid correlated with its consumption. In other cases, may be adopted in the calculation of the flow rate and the temperature.

The flow rate circulating through the valve fluid medium m�can be measured accurately and without difficulty.

In accordance with one variant of implementation, the internal parameters of the equalizing valve includes presented its manufacturer hydraulic characteristics, reflecting the differential pressure (ΔPvanne) between the input and output equalization valve depending on the flow rate (Q) at this position of the valve equalizing valve.

Thanks to this easy and with a sufficiently accurate approximation to determine the valve position of the valve, corresponding presumably changing the pressure drop across the valve, to ensure a certain flow rate, which is equal to the flow rate required for alignment.

In accordance with one variant of implementation, the means of processing performed in the process of automatic static alignment the calculation of reference characteristic coefficient of the (Zref) set the parameters of the hydraulic network, considered as depending on two or more specific values of flow rate, for example, at 75% and 50% of full opening (QKv 75%, QKv 50%), for two different positions (P75%P50%of damper and the corresponding values of the characteristic coefficients (Kν75%, Kν50%) set the parameters of equalisation valve is calculated on the basis of the differential pressure (ΔPvannedefined its own hydraulic x�the characteristics of the valve.

Thus, it is possible to perform calibration of the valve with the aim of increasing the accuracy of theoretical own characteristics of the valve. It also allows confirmation of the calculated reference characteristic coefficient of the parameters for a hydraulic network theoretical value specified in the architectural drawings for new and renovated building.

In accordance with one variant of implementation, the external parameters of the equalizing valve includes a preset value (Qconsigne) the flow through the equalizing valve corresponding to the evaluation needs of thermostatic element in this branch of the hydraulic network, such as the radiator or a convection fan.

Thus, it is possible in particular to adapt the equalizing valve to the branch of the hydraulic network in which it is installed. Estimation of flow obtains a quantitative expression through energy demand, due to operating temperatures and system components heating and/or air conditioning.

According to the variant of implementation, provide for the introduction of the specified value (Qconsigne) flow in a program using the storage automated equalization valve.

Thus, provided automationclassname a predetermined value depending on time and therefore, from the external and internal environments.

In accordance with one variant of implementation, the means of processing performed in the process of automatic static alignment the calculation of the adjusted values (Kνréactualisée) to the characteristic coefficient (Kν) setting of the valve, depending on specific flow rate (Qmesuré), when the valve position corresponding to the specified value (Qconsigne), and its corresponding characteristic coefficient (Kνconsigne) set parameters for equalization valve, and the reference characteristic coefficient of the (Zréf) set the parameters of the hydraulic network.

Thus, provided the exposure compensation network, perceived as the difference between the preset flow rate value (Qconsigneand is actually a certain value (Qmesuré).

In accordance with one variant of implementation, the means of processing performed in the process of automatic static alignment the calculation of reference pressure difference (ΔPréf) in the branch of the hydraulic network with the adjusted characteristic coefficient (Kνréactualisee) setting of the valve by the formula:

Thus, the obtained reference values that can be used for controlling the installation or for any other operations on the network.

In accordance with one variant of implementation, the means of processing have an impact in the process of automatic dynamic equalization of the means of control valve position using the actuating mechanism to maintain the reference pressure difference (ΔPréf) is essentially constant in the branch network, regardless of the needs of the hydraulic network.

Thus, provided maintaining essentially constant pressure drop in the branch with balancing valve and thermostatic element, regardless of the needs of the hydraulic network.

The invention also covers a method of automatic, so-called "static", hydraulic leveling modes of one or more thermal control elements included in the branch of the hydraulic network with essentially constant pressure drop (ΔP) containing the equalizing valve of the type described above, characterized in that it includes the stages in the order listed below:

- extracted from the storage preset flow rate (Qconsigne),

- calibrate the equalizing valve, determining the costs for two or more known locations of the equalizing valve of the valve corresponding to the coefficients of the characteristic automatic equalization valve, for example 75% � 50% of the maximum valve opening

- calculate the characteristic coefficient (Zref) set the parameters of the hydraulic network and the corresponding characteristic coefficient (Kνconsigne) set parameters for equalization valve

- install the choke valve corresponding to the calculated value of the position

- determine the flow rate (Qmesuré), if

- specific consumption rate (Qmesuré) is in the range of values established by, for example, within plus or minus 5% with respect to a given flow value (Qconsigne), then:

- preset flow rate (Qconsigne) change at a certain value of flow rate (Qmesuré),

- the characteristic coefficient (Kνconsigne) set the parameters of equalisation valve corresponding to the characteristic coefficient (Zréf) set the parameters of the hydraulic network, make reference characteristic coefficient (Kνréf) specify options, and

- reference differential pressure (ΔPréf) in the branch (4) hydraulic network (5) is calculated on the basis of the reference characteristic coefficient (Kνréf) job parameters and a certain flow rate (Qmesuré),

otherwise

- returning to the step of calculating the characteristic coefficient of the (Zréf) set the parameters of the hydraulic network and the corresponding characteristic kOe�of ficient (Kν consigne) set the parameters of equalisation valve.

The subject invention is also a method of automatic, so-called "dynamic", align inlet pressure of one or more thermal control elements included in the branch of the hydraulic network with essentially constant pressure drop (ΔP) containing the equalizing valve of the type described above, characterized in that it includes the stages in the order listed below:

- first perform the steps of determining the characteristics described in relation to method automatic, so-called "static", equalization, for the purpose of determining the hydraulic regimes in the branch,

- expect, after the first preset time interval, the stabilization of the circulation of the fluid through the surge valve (1); this time interval is specified by the parameter, preferably 30 minutes

- determine the flow rate (Q) on the basis of which calculate the differential pressure (ΔP),

- if the differential pressure (ΔP) is in the range of values established by, for example, within plus or minus 5% relative to reference value (ΔPréf) differential pressure,

- go back to the first stage, the expectations after the first preset time interval, otherwise

- calculate brushless�algebraic factor (Z) setting the parameters of the hydraulic network and the corresponding characteristic coefficient (Kν) specify automatic equalization valve

- install the valve equalizing valve in the position corresponding to the characteristic coefficient (Kν) specify automatic equalization valve

- expect the expiration of the second preset time interval, then return to the beginning of the stage, and this time interval is specified by the parameter, preferably equal to five minutes. Explanation of the invention in the following description, given with reference to the attached as an example of illustration, are not restrictive and explain the principle of the proposed equalization valve.

Fig.1 is a schematic diagram of the hydraulic distribution system fitted with a levelling valve according to the invention;

Fig.2 - example of a chart provided by the designer equalization valve;

Fig.3 is an illustration as vector adaptive capabilities of the proposed equalization valve;

Fig.4 - manufacturer's schedule illustrating the adaptive capacity of the proposed equalization valve;

Fig.5 is an illustration of the individual steps of operation of the proposed equalization valve;

Fig.6 - scheme of equalisation valve.

As can be seen in Fig.1, the equalizing valve 1 valve 2 having an input A and output B, set for termolecular�appropriate element 3, included in the branch 4 of the hydraulic network 5 with essentially constant pressure drop (ΔP) generated by the pump 6.

If we proceed from the assumption that the hydraulic network 5 operates with essentially constant pressure differential created by the pump 6, we can write the equation:

ΔPpump=ΔPélémentsurleréseau+ΔPvanne

where, as you know,

ΔPélémentsurlereseau=Q2Z, where Z denoted by the characteristic coefficient setting parameters of the hydraulic network 5, one branch 4 or any regulatory body, for example, an equalizing valve 1, and

ΔPvanne=(Q/Kν)2where the symbol denoted by Kν the characteristic coefficient setting of the valve 1.

The specified coefficient Kν, the characteristic coefficient setting of the valve 1, characterizes the angle of inclination of the straight lines corresponding to different provisions of the damper 2 equalizing valve 1 in the graphs of Fig.2 and 4.

Adaptation opening the by-pass valve 1 is carried out in two stages. The first stage is automatic, so-called "static", alignment is used to identify the various parameters characterizing the hydraulic network 5 and consider equalizing valve 1. The second stage is automatic, so-called "dynamic" alignment is intended to adjust the pressure on I�de thermostatic element 3 in accordance with the evaluation value, the requirements of that element 3 moreover, this assessment may change given the way in time.

Thanks to our first automatic static alignment becomes possible in the first place, the auto-calibration on the basis of the flow rate Q through the surge valve 1 for two or more known locations of the flap opening 2 of the valve 1.

These measurements are performed using a special measuring means 7 placed in the equalization valve 1 or 4 branches, in which the valve is installed.

In addition, the equalizing valve 1 provided with means 8 for controlling the position of valve 2 of the valve, and means 11 of the data storage storing various characteristic of an equalizing valve 1 internal parameters and external parameters that depend on the operation and functioning of this valve.

The equalizing valve 1 is schematically shown in Fig.6.

All elements of the equalizing valve 1 is installed in its housing 9. Valve 2 is driven by the control means 8 type actuating mechanism. The measuring means 7 sends the actual information about the hydraulic characteristics of the funds in 10 processing, which is processing and transmitting information about the position of the flap 2 to the control means 8. Means 10 treatment provide the communication means 11 of the storage of the required information and transmit info�rmatio system 12 data collection.

The measuring means 7, means 8 for controlling the position of valve 2 equalizing valve 1, and also funds 11 data storage means connected to independent 10 processing in the equalization valve 1 and is produced in the process of automatic static alignment the collection of parameters from the means 11 of the data storage and the received measuring means 7 of the measurement results for the purpose of such control means 8 for controlling the position of valve 2 during the automatic dynamic equalization, in order to ensure constant pressure drop in the branch 4 of the hydraulic network 5, which includes an equalizing valve 1.

Two or more known locations opening the by-pass valve 1 selected at random and may correspond to, for example, 75% and 50% of the maximum opening the by-pass valve (1).

Computational process provides a measure of the characteristic of the coefficient Z of the job parameters of the hydraulic network 5.

Thereby the compliance of the architectural drawings actually installed hydraulic network 5.

When working with open 75% surge valve 1 equation is true:

When working with open 50% surge valve 1 equation is true:

From preferred�the suggestions the pump 6 operates with a constant ΔP and thus,

follows:

and, respectively,

This calculation produces the means 10 treatment, while the calculated value of the specified characteristic coefficient of Zréfsetting the parameters of the hydraulic network 5 is stored in the 11 data storage.

Produce retrieving the set value of the flow Qconsignecorresponding to assessing the need for branches 4, from funds 11 data storage where it is stored.

The specified flow rate of Qconsigneeasily be assessed in relation to both new and renovated buildings.

In new buildings it conforms to the architectural calculations.

For the renovated buildings of architectural drawings and papers performed less frequently. However, estimation of flow gets quantified using the energy requirement dictated by the working temperature of thermostatic elements 3 in heating or air conditioning.

Based on the same assumptions that the hydraulic network 5 operates under essentially constant pressure generated by the pump 6, we can write the equation:

therefore:

For uranite�tion valve 1 take into account the value of the reference characteristic coefficient Kν consignesetting of the valve.

However, there is a divergence between reported specified flow rate of Qconsigneand the actual measured flow value Qmesuré.

The discrepancy has to be repaired and mainly due to the influence of the hydraulic network 5.

During the stabilization period equalizing valves 1 save the setting in accordance with the tolerance interval, the limited magnitude of Qconsigneand the tolerance interval is specified by, for example, ±5%.

Qconsigne-5%<Qmesuré<Qconsigne+5%

Compensation is performed using the preceding formula, in which the place of Qconsignesubstitute Qmesuréand in the place of QKv75%substitute Qconsignewhere:

When stabilization occurs, the calculation or recalculation of the characteristic coefficient Kνset parameters for equalization valve 1 and the characteristic coefficient of the Z parameters for a so-called "reference" hydraulic network 5.

The coefficients of Z and Kνserve in the future for controlling the operation of the installation or any other operations in the hydraulic network 5.

At the same time in the system is the calculation of reference pressure difference ΔPréfin the circuit, for use in so-called "dynamic" St�dia, described in detail below.

In this second phase of the so-called "dynamic auto-leveling is still the assumption that the hydraulic network 5 operates with essentially constant pressure differential created by the pump 6.

From the developers of equalisation valve 1 is received relating to an equalizing valve 1 graphics shown in Fig.2 type.

The graphs display the differential pressure ΔP between the outlet and In the inlet And the valve 1 depending on the flow Q circulates through it of the fluid. The graph in Fig.2 refers to the model DN32 (DN32) is manufactured by COMAR®.

Diagonal lines show different positions of adjustment provided by the valve 1. These provisions are marked on the control knob valve. The angle of these lines reflects the value of the characteristic coefficient Kνset parameters for equalization valve 1.

Interpretation does not require special knowledge. Indeed, based on required nominal flow rate and the differential pressure ΔPvanneto the fluid circulating through branches located in 4 hydraulic network 5 equalizing valve 1 is possible by adjusting to bring the valve to the desired position.

For example, when the differential pressure ΔPvanne=0.1 bar in the branches 4 and required �consumption ratings, 900 l/h, the position adjustment is performed by setting the valve 1 in position 16.

Thus, it is necessary to align the damper opening 2 equalizing valve 1 with a nominal flow rate required, for example, when opening or closing thermostatic element 3 type radiator with maintaining for the longest possible time constant differential pressure in the branch 4, which includes an equalizing valve 1.

The possibility of adaptation to the conditions of operation of the radiator shown in vector form in Fig.3.

When you close the radiator flow through the surge valve 1 drops, leading to an increase of the total hydraulic resistance of the network 5 and, consequently, to the increase of the pressure drop ΔP in the branch 4 of the hydraulic network 5.

It must be borne in mind that at time t the equalizing valve 1 is in the open position, as if you opened the radiator. Thanks to the adaptability is compensated differential pressure ΔP by reducing the differential pressure ΔPvannebetween the exit and entrance And an equalizing valve 1 at the time t1.

Fig.3 shows that the proposed equalization valve 1 provides in relation to the reference differential pressure ΔPréfin branch 4, calculated at the stage of automatic, so-called "static", produc�Oia, essentially, the independence requirements of the hydraulic network 5.

Likewise, when you open the radiator, the proposed equalization valve 1 ensures the adaptation of the opening through the installation of the damper 2, in this case, in the position corresponding to a larger opening.

Fig.4 illustrates the closure of the radiator according to the schedule of Fig.2.

In this case there is a reduction of the flow rate Q in the branch 4, so that the equalizing valve 1 tends to "closed".

On the same Fig.4 the position of the valve before the measurement was consistent with the position 16.

At the time of measuring the user closes the radiator, which is tantamount to drop in the flow rate Q in the branch 4. In this case there is a change of flow Q with 900 l/h 270 l/h. Thus, the graph shows the variation of the pressure drop ΔPvannein the equalization valve 1 according to the formula:

In accordance with the invention, are compared, and ΔPréfand ΔP at the time of measurement, then adjust the position of adjustment of the levelling valve 1, rolling in this case from the position to the position P16 P8. Thus, the equalizing valve 1 is adjusted to the respective needs of the flow rate Q.

According to the same method of calculating equalization valve 1, can occupy a higher position when you zoom�research Institute of flow due to the opening of the radiator.

Thus, the equalizing valve 1 is a flexible stand-alone device, able to adapt at any desired moment to the needs of the hydraulic network 5.

In addition, it functions on the basis of only one input variable, namely the given flow rate Qconsignewhich is determined either on the basis of architectural data for a new building or, in the case of a reconstructed building, on the basis of compliance with these earlier maintenance work or receive as a result of the calculation is simple software manufactured by COMAR®.

The equalizing valve 1 easy to operate, available to any user, saves time in the editing process and financial tools for a lifetime.

In addition to the functions of leveling, equalizing valve 1 also provides management and maintenance of hydraulic network 5.

In the above description used specific examples of the invention, which, obviously, do not limit the invention, but rather cover various technical equivalents are considered here means, as well as their various combinations.

1. Equalizing valve (1) valve (2) which has an input (A) output and (b), and is set for thermostatic element�m (3), included in the branch (4) hydraulic network (5) with essentially constant pressure (ΔP), characterized in that it comprises:
- means (7) for measuring characteristic values of the fluid circulating through the surge valve (1),
- means (8) position control valve (2) equalizing valve (1),
- means (11) data storage in which is stored the internal and external parameters of equalisation valve (1),
- independent means (10) processing, designed to provide automatic alignment in the branch (4) using the values of the characteristic value of the fluid obtained by the measuring means (7), means (8) management and data stored in the means (11) storage.

2. Equalizing valve (1) according to claim 1, characterized in that the means (10) processing, ensure the so-called static alignment, wherein the parameters stored in the means (11) data storage, bring together the results of measurements made measuring means (7) for the purpose of obtaining reference values characteristic of the hydraulic network (5).

3. Equalizing valve (1) according to any one of claims.1 or 2, characterized in that the means (10) processing, ensure the so-called dynamic alignment, whereby the reference value, preferably the Oprah�specified in paragraph 2, used to control the operation means (8) position control valve (2) for the purpose of maintaining the differential pressure or flow rate at essentially constant flow rate in the branch of the hydraulic network (ΔP), which includes an equalizing valve (1).

4. Equalizing valve (1) according to any one of claims.1 and 2, characterized in that the means (10) processing, ensure the exchange and change the alignment to adapt and diagnostics of the entire hydraulic network (5).

5. Equalizing valve (1) according to any one of claims.1 and 2, characterized in that the measured characteristic value circulating through the surge valve (1) fluid represents the flow rate (Q).

6. Equalizing valve (1) according to claim 5, characterized in that the internal parameters of the equalizing valve (1) specified manufacturer, install a pressure change (ΔPvanne) between the input and output equalization valve (1) depending on the flow rate (Q) at a given position of the flap (2) equalizing valve (1).

7. Equalizing valve (1) according to claim 6, characterized in that the means (10) of the processing performed in the process of static alignment the calculation of reference characteristic coefficient of the (Zréf) set the parameters of the hydraulic network (5), consider, as appropriate:
- two or more set values of flow (QKv75%Kv50%for two or more different positions (P75%P50%of damper (2) and
- relevant characteristic values of the coefficients (Kv75%That Kv50%) set the parameters of equalisation valve (1) calculated on the basis of the differential pressure (ΔPvanne) set internal parameters of equalisation valve (1).

8. Equalizing valve (1) according to any one of claims.1, 2, 6 or 7, characterized in that the external parameters of the equalizing valve (1) includes the set value (Qconsigne) the flow through the equalizing valve (1), an appropriate assessment needs of thermostatic element (3), such as a radiator or a convection fan in the branch (4) hydraulic network (5).

9. Equalizing valve (1) according to claim 8, characterized in that the set value (Qconsigne) programmable flow means (11) storage equalization valve (1).

10. Equalizing valve (1) according to claim 9, characterized in that the means (10) of the processing performed in the process of the static alignment of the calculation of the adjusted values (Kνréactualisée) to the characteristic coefficient (Kν) setting of the valve depending on:
- measured flow (Qmesuré) when the valve position corresponding to the specified value (Qconsigne) flow determined internal water�algebraic characteristics of the valve,
- set flow rate (Qconsigne) and the corresponding characteristic coefficient (Kνconsigne) set the parameters of equalisation valve (1) and
- bearing characteristic coefficient of the (Zréf) set the parameters of the hydraulic network.

11. Equalizing valve (1) according to claim 10, characterized in that the means (10) of the processing performed in the process of static alignment the calculation of reference pressure difference (ΔPréf) in the branch (4) hydraulic network (5) with the adjusted characteristic coefficient (Kνréactualisée) setting of the valve by the formula:
ΔPréf=(QmesuréKνréactualisé)2

12. Equalizing valve (1) according to claim 11, characterized in that the means (10) processing of affect in the process of dynamic alignment of the means (8) for controlling the position of the damper (2) using the actuating mechanism to maintain the supporting pressure change (ΔPréf) is essentially constant in the branch (4) network (5) hung out�ing on the needs of the hydraulic network (5).

13. The method is automatic, so-called static, hydraulic leveling modes of one or more thermal control elements (3) included in the branch (4) hydraulic network (5) with essentially constant pressure drop (ΔP), which contains an equalizing valve (1) according to any one of claims.1-12, characterized in that it includes the stages in the order listed below:
- extract from the means (11) data storage a preset flow rate (Qconsigne),
- calibrate the equalizing valve (1), determining the costs for two or more known locations of the damper (2) equalizing valve (1), correspond to the two characteristic coefficients of the valve (1), for example 75% and 50% of the maximum valve opening (1),
- calculate the characteristic coefficient (Zréf) set the parameters of the hydraulic network (5) and the corresponding characteristic coefficient (Kνconsigne) set the parameters of equalisation valve (1),
- install the valve (2) valve (1) in the position corresponding to the computed value
- determine the flow rate (Qmesuré),
- if a specific flow rate (Qmesuré) is in the range of values established by, for example, within plus or minus 5% with respect to a given flow value (Qconsigne), then:
- preset flow rate (Qconsigne) changed to a certain value�s flow rate (Q mesuré),
- the characteristic coefficient (Kνconsigne) set the parameters of equalisation valve (1) corresponding to the characteristic coefficient (Zréf) set the parameters of the hydraulic network (5), make reference characteristic coefficient (Kνréf) set the parameters, and
- reference differential pressure (ΔPréf) in the branch (4) hydraulic network (5) is calculated from the characteristic coefficient of the reference (Kνréf) job parameters and a certain flow rate (Qmesuré),
otherwise,
- returning to the step of calculating the characteristic coefficient of the (Zréf) set the parameters of the hydraulic network (5) and the corresponding characteristic coefficient (Kνconsigne) set the parameters of equalisation valve (1).

14. The method is automatic, so-called dynamic alignment of the inlet pressure of one or more thermal control elements (3) included in the branch (4) hydraulic network (5) with essentially constant pressure drop (ΔP), which contains an equalizing valve (1) according to any one of claims.1-12, characterized in that it includes the stages in the order listed below:
- expect after the first preset time interval (t1) stabilization of the circulation of the fluid through the surge valve (1), and this interval BP�Meaney is a given parameter, preferably to 30 minutes,
- determine the flow rate (Q), and calculate the differential pressure (ΔP),
- if the differential pressure (ΔP) is in the range of values established by, for example, within plus or minus 5% relative to reference value (ΔPréf) pressure drop,
- go back to the first stage, the expectations after the first preset time interval (t1),
otherwise,
- calculate the characteristic coefficient (Z) setting the parameters of the hydraulic network (5) and the corresponding characteristic coefficient (Kν) set the parameters of equalisation valve (1),
- install the valve (2) equalizing valve (1) in the position corresponding to the characteristic coefficient (Kν) set the parameters of equalisation valve (1),
- expect the expiration of the second preset time interval, then return to the beginning of the stage, and this time interval is specified by the parameter, preferably, equal to five minutes.



 

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18 cl, 1 dwg

FIELD: process engineering.

SUBSTANCE: controller 100 is designed to be mounted in gas feed line between gas source and arc welding set gas valve 800. Controller 100 has protective gas inlet 200 and outlet 600, controlled gas valve 110 connected in between gas inlet and outlet and provided with control input 170, and control means. Control means has first input to receive welding signal and gas flow rate adjustment parameter control means 300. Input pressure transducer 120 is connected to gas inlet to output inlet gas pressure 150 to second input of control input. Output pressure transducer 140 is connected to gas outlet to output outlet gas pressure 160 to third input of control input. Converter of gas flow rate adjustment parameter control output signal convert said signal proceeding from the results of input and output gas pressures, welding signal and controlled valve characteristics into control signal 170 to be fed to controlled gas valve control input to maintain constant has flow in feed line that corresponds to flow rate adjustment parameters output signal irrespective of actual input and output gas pressure ate welding set inlet and outlet.

EFFECT: higher efficiency of control.

8 cl, 10 dwg

FIELD: machine building.

SUBSTANCE: method for functioning of a hydrodynamic system of manifolds with an active component, which in the system generates a volume flow of a medium, and several flow channels connected in parallel to each other, which with an active component are jointly supplied with a volume flow of a medium, besides, each channel of the flow has an individual required volume flow of a medium, which for at least a part of the flow channels is alternating in time, at the same time in each channel of the flow (3, 4, 5) with the time-alternating required volume flow of the medium the appropriate volume flow (q3, q4, q5) is individually throttled depending on the controlled parameter (x3, x4, x5), corresponding to the channel of the flow (3, 4, 5), and additionally a volume flow (Q), generated with the active component (2), is in general controlled so that in at least one of the flow channels (3, 4, 5) individual throttling is not required for the available volume flow (q3, q4, q5).

EFFECT: reduced consumption of energy in a hydrodynamic system of manifolds.

13 cl, 4 dwg

FIELD: operation of gas and liquid consumption regulation valve.

SUBSTANCE: method of operation of the consumption regulation valve determines the current valve openness, pressure difference and valve new opening rate on the basis of the valve Cv curve, set consumption value, current openness of the valve, and the valve pressure difference; the above valve pressure difference includes computation of the pressure difference by means of the valve Cv curve, current valve openness and shifted consumption; the operating system of the consumption regulation valve comprises a controller for defining a valve new opening rate on the basis of the valve Cv curve, preset consumption value, current openness of the valve and the valve pressure difference; besides the operating system additionally contains a meter for measuring consumption; the controller is executed to compute the above pressure difference through the valve Cv curve, current valve openness and measured consumption.

EFFECT: enhancement of the consumption control performed by the regulating valve.

13 cl, 9 dwg.

FIELD: physics; control.

SUBSTANCE: control loop of a regulating valve works using terminal pressure of a pneumatic amplifier as a regulation parametre. The control loop can continuously operate in pressure control mode or can be switched to that mode from displacement control mode, in response to certain operation conditions: operation in the shut-off range, operation when the throttle element (valve 26) reaches the end of its displacement or as a double regulation parametre when the sensor fails. Operation of the control loop in pressure control mode also allows for diagnosing (testing) components (24, 26) of the control loop even if the system is operating in the shut-off range or if the end of displacement of the valve 26 has been reached. Diagnosis can be carried out using pressure and displacement sensors. A processor is programmed to receive data from sensors and generate error signals in accordance with a logical subprogram, involving calculation of flow of control fluid media through outlet windows of the pneumatic amplifier and comparing other operating parametres to detect leakages and clogging in components of the control loop.

EFFECT: invention increases efficiency of a regulating valve, with natural gas serving as the control medium.

67 cl, 13 dwg

FIELD: physics; control.

SUBSTANCE: invention relates to servocontrollers for use in logic circuits or control loops and specifically to extensions of electro-pneumatic control loops and other logic circuits for improving function of control valves and accessories of pneumatic drives. A lead-lag input filter is connected ahead of a positioner feedback loop having one or more valve accessories, such as a volume booster or a quick exhaust valve, to overcome slow dynamics experienced by the accessories when receiving low amplitude change control or set point signals. A user interface is connected to the lead-lag input filter and enables an operator or other control personnel to view and change operating characteristics of the lead-lag input filter to provide the control loop with any of a number of desired response characteristics.

EFFECT: overcoming slow dynamics experienced by valve accessories; enabling an operator to view and change operating characteristics of the lead-lag input filter; possibility of controlling such process parametres as displacement or rod stroke of a valve; possibility of accurate setup.

42 cl, 7 dwg

Control device // 2366847

FIELD: oil and gas industry.

SUBSTANCE: invention relates to control valves and accessories and can be used at gas hole mouth. Discharge rod seats in the device body opposite the drive rod and is coupled with flat gate. Discharge rod diametre equals that of the drive rod. Discharge rod extension has a slot. Adjustable diaphragm-type throttle is arranged in the body on the discharge rod side to accommodate a plunger with narrow variable-section slits. Plunger extension has also a slot. Both aforesaid slots accommodate rocker arms. Chamber arranged ahead of the said diaphragm-type throttle communicates, via return valve, with the line feeding hydration inhibitor. Chamber arranged behind the said throttle communicates with body-size hole.

EFFECT: higher efficiency of hydration inhibitor feed.

1 dwg

FIELD: construction, pipeline.

SUBSTANCE: invention may be employed in pipeline fitting as a unilateral or bilateral valve. Magnetic trap for located in this area pieces of ferromagnetic material, size whereof is bigger than that of the cells of the gauze material, is created in restricted by the gauze elements area of the fluid media. Intensity of the magnetic field is measured, force lines whereof align with the flow direction, ensuring control of choked stream ferromagnetic particles, moved under the action of the hydraulic power of the stream onto the inner surface of the outlet gauze element, and under the action of magnetic field into the magnetic trap. Magnetic field inducer is installed in the hull of the magnitorheologic device, in the central reel channel whereof there is a heart of magnetic material. In the area restricted by the gauze elements, there is a pocket made with a possibility of been formed into a magnetic trap, volume whereof is sufficient for placement of all the ferromagnetic particles. Channel for fluid media passing may be arranged in the heart or in the gap between the heart and the inducer.

EFFECT: decreased power intensity of the control process provided simultaneous miniaturisation of the device.

15 cl, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to a method for optimised functioning as to power of a motor-driven pump in a hydraulic system with at least one self-adjustable consumer. Predetermined head (Hsoll) of the pump is controlled depending on its volumetric flow rate (Q) according to the controlled basic characteristic curve, which is determined by means of pre-determined specified value (HK) of the characteristic curve. Volumetric flow rate (Q) pumped with the pump is determined, and its trend (δQ) is determined, and depending on volumetric flow rate (Q) and/or its trend (δQ) the specified value of characteristic curve (HK) is increased when volumetric flow rate (Q) is increased, or decreased when volumetric flow rate (Q) is decreased.

EFFECT: invention is aimed at optimum matching of hydraulic power of the pump with its corresponding working point in a hydraulic system.

21 cl, 13 dwg

Three-way valve // 2537658

FIELD: machine building.

SUBSTANCE: valve has the housing 1 with input 3, output 4 and offtake branch pipes 5. Between internal hollow of the housing 1 and output 4 and offtake branch pipes 5 the seats 6, 7 are located. The housing 1 has a valve block with the valve trays 8, 9, installed on a rotary lever 10 with a possibility of contact of the tray 8 with the seat 6 in one extreme angular position of the rotary lever 10 and the tray 9 with the seat 7 in the other extreme angular position of the rotary lever 10. The axis 11 of the lever 10 is located between output 4 and offtake branch pipes 5 perpendicularly to the plain with the axes of these branch pipes. On the housing 1 fitting is installed, through which in parallel to axis 11 a movable rod of the valve block moving device passes The named facilities also contain the motion booster in the form of double-shoulder lever. The named rod from one end interacts with a heat head thruster, and from another one - with the smaller shoulder of the double-shoulder lever. The greater shoulder of the double-shoulder lever passes through a sealing element. The double-shoulder lever is spring-bias towards the side of pressing of the valve tray 8 to seat 6, adjacent to the output branch pipe 4.

EFFECT: improvement of accuracy of temperature regulation, lowering of hydraulic resistance to the heat carrier flow and improvement of convenience of valve operation.

5 cl, 3 dwg

FIELD: heating.

SUBSTANCE: present invention relates to a method of controlling the maintaining water temperature in the water heater with the heat accumulator controlled by the electronic regulator. The method of controlling the water heater with a heat accumulator in which water heating is carried out by the heating element, controlled by the regulator, which can bring the water temperature to a variable target temperature, and which comprises: defining moment (tONk; t'ONi) of the start of heating to ensure intakes (Pk; Pi) of water comprises the following stages: at short time intervals (δW) all the w intakes are accounted (P1, …, Pi, …, Pw), which moment of start (ti) falls on the specified time window (Δtw) immediately following the current moment of time, and the time window (Δtw) is selected based on the type of water supply system, for which the water heater (1) is designed, and is sufficiently extended to include the moment (ti) of start of all the intakes (Pi), which moments (t'ONi) of the start of imaginary heating presumably precede the moments (t'ON) which correspond to (i-1) preceding intakes (P1, …, Pi-1), at the said moment (ti) of start of intake which falls on the time window (Δtw), the same number of imaginary intakes (P'1, …,P'i, …, P'w) is constructed each of which has the same moment (tw) of start as the start moment of the corresponding real intake (Pi), and the initial temperature (T'set.i) of the imaginary intake determined by adding the initial temperatures (Tset1, Tset2, …, Tset (i-1)) of all water intakes accounted for the time window (Δtw) and preceding the intake itself (Pi), and the corresponding initial temperature (Tset.i) of real intake, on the basis of which each initial temperature (Tset1, Tset2, …, Tset (i-1)) is determined of the optimum temperature (Topt) of discharge according to the formula T'set.i=Tset.i+(Tset1-Topt)+(Tset2-Topt)+…+(Tset(i-1)-Topt), for each of the imaginary intakes (P'1, …, P'i, …, P'w) the moment is calculated (t'ONi) of start of imaginary heating according to the formula t'ONi=ti-(T'set.i-Tm)/VTh, on reaching the earliest of the moments (t'ONi) of start of heating the target temperature (Ttarget) is set at an initial temperature level (T'set.i) of the corresponding imaginary intake (P'i), at that it is understood that the upper limit of the said target temperature (Ttarget) is the maximum set temperature (Tset.max), and to achieve the earliest of the moments (t'ONi) of the start of heating the temperature is maintained (Ttarget) equal to the maintaining temperature (Tstand-by), and the said maintaining temperature (Tstand-by) is the temperature maintained at moments of time remote from the moments of the intake.

EFFECT: invention enables in the planned mode to change with the passage of time the temperature in the water tank.

29 cl, 4 dwg

FIELD: heating.

SUBSTANCE: essence of information-measuring and control system of optimisation of production and consumption of heat energy at the distributed facilities of heat supply comprises a first circuit with a heat source (gas boiler), a heat exchanger, a second circuit of the heat network, a temperature sensor in the straight pipeline of the first circuit, a temperature sensor in the return pipeline of the second circuit, a pressure sensor in the straight pipeline of the second circuit, a gas supply regulator, a gas flow sensor, a fan, an air temperature sensor, an air flow rate sensor, a temperature sensor of waste gases, a metre of produced heat energy, a multichannel microprocessor control unit of energy saving in production of heat energy, a memory unit, a control centre of receiving the information, a unit of control the combustion process in the boiler, a heat supply system, a control unit of heat energy consumption, and the first circuit with a heat source (gas boiler), the first output of which is connected to the input of the temperature sensor of waste gases and through the heat exchanger is connected to the second circuit of the heat network, is connected to the input of the temperature sensor in the straight pipeline of the first circuit, three outputs of the second circuit are connected to the inputs of the temperature sensor in the return pipeline, the pressure sensor in the straight pipeline, the metre of produced heat energy, the outputs of which are connected to the inputs of the multichannel microprocessor control unit of energy saving in production of heat energy, the output of the gas supply regulator by the of gas flow rate sensor is connected to the first input of the boiler, the output of the fan through the air temperature sensor, the air flow rate sensor is connected to the second input of the boiler, the outputs of the gas flow rate sensor, air flow rate sensor, air temperature sensor, temperature sensor of waste gases are connected to the inputs of the multichannel microprocessor control unit of energy saving in production of heat energy, the first output of which is connected to the input of the memory unit, the second output is connected to the input of the control centre of receiving information, the second, third, fourth inputs of the control centre of receiving information are connected to the outputs of the heat supply system by the control units of heat energy consumption, which fourth, fifth, sixth outputs of the second circuit are connected to the inputs of heat supply systems, the output of the control centre of receiving information by the control unit of the combustion process in the boiler is connected to the inputs of gas supply regulator and the fan. Thus, the information-measuring and control system of optimisation of production and consumption of heat energy at the distributed facilities of heat supply enables to optimise the process of production and consumption of heat energy at the distributed facilities of heat supply and to improve energy efficiency of operation of the presented facilities.

EFFECT: enhancing the technological capabilities of the device by controlling a variety of distributed facilities of heat supply in order to increase their efficiency in accordance with the concept of best available techniques.

1 dwg

FIELD: heating.

SUBSTANCE: information and measuring system for monitoring of energy saving at production of thermal energy includes the first circuit with a heat source (a gas boiler), a heat exchanger, the second circuit of a heat network, a temperature sensor in a direct pipeline of the first circuit, a temperature sensor in a return pipeline of the second circuit, a pressure sensor in the direct pipeline of the second circuit, a gas supply control, a gas flow sensor, a fan, an air temperature sensor, an air flow sensor, a waste gas temperature sensor, a produced thermal energy metre, a multi-channel microprocessor energy saving monitoring unit at production of thermal energy, a memory unit, a dispatch information receiving centre; besides, the first circuit with the heat source (gas boiler), the first outlet of which is connected to the inlet of the waste gas temperature sensor and through the heat exchanger is connected to the second circuit of the heat network, is connected to the inlet of the temperature sensor in the direct pipeline of the first circuit; three outlets of the second circuits are connected to inlets of the temperature sensor in the return pipeline, a pressure sensor in the direct pipeline, a produced thermal energy metre, the outlets of which are connected to inlets of the multi-channel microprocessor unit for monitoring of energy saving at production of thermal energy; the outlet of the gas supply control is connected by means of the gas flow rate to the first boiler inlet; the fan outlet is connected by means of the air temperature sensor, the air flow sensor to the second boiler inlet; outlets of the gas flow sensor, the air flow sensor, the air temperature sensor, the waste gas temperature sensor are connected to inlets of the multi-channel microprocessor unit for monitoring of energy saving at production of thermal energy, the first outlet of which is connected to the inlet of the memory unit, and the other outlet is connected to the inlet of the dispatch information receiving centre.

EFFECT: invention allows optimising a thermal energy production process at distributed heat supply facilities and improving energy efficiency of operation of the presented items.

1 dwg

FIELD: power engineering.

SUBSTANCE: control system includes a source of heat, supply and return pipelines, a unit of coolant flow rate control, comprising a flow rate controller and sensors of flow rate, temperature and pressure, installed on supply and return pipelines, a circulating pump, a heat energy processor, linked to sensors and the controller. To achieve the technical result, the unit of coolant flow rate control is equipped with sensors of temperature of external and internal air, at the same time the unit of coolant flow rate control, the circulating pump and the heat energy processor are installed on a load with higher thermal load, other loads of the system are equipped with sensors of coolant flow rate and sensors of internal air temperature, connected to the heat energy processor.

EFFECT: control of heat consumption of a group of loads without installation of a full complex of automatics devices with preservation of the temperature mode, which are connected to heat networks of buildings, which makes it possible to save capital costs, service costs, saving of thermal and electric energy.

1 dwg

FIELD: machine building.

SUBSTANCE: first output of the first circuit with heat source, a gas boiler, is connected with discharge gas temperature gage input and, via heat exchanger, with heat network second circuit. Second circuit three outputs are connected with return pipeline pressure age, forward pipeline pressure gage, their outputs being connected with inputs of multichannel microprocessor unit for control over power saving control in heat power production. Gas feed controller output is connected via gas flow rate metre with boiler first inlet. Blower outlet is connected via air temperature gage and air flow rate gage with boiler second outlet. First output of said microprocessor unit is connected with memory unit with its second output connected to dispatcher data acquisition centre input. Output of the centre is connected via boiler combustion control unit with gas feed and blower controller inputs.

EFFECT: optimised heat production and higher efficiency.

1 dwg

FIELD: machine building.

SUBSTANCE: proposed system comprises at least two temperature control circuits 2, 3, 4. Pressure control unit 18, 19, 20 is arranged to simplify and to optimise power consumption in every circuit 2, 3, 4. Pressure control units 18, 19, 20 allow invariable pressure difference in appropriate circuit 2, 3, 4. Pressure control units 18, 19, 20 equalise pressure difference in all said circuits.

EFFECT: power savings, better convenience.

11 cl, 4 dwg

FIELD: power engineering.

SUBSTANCE: device to adjust and control the flow in heating and cooling systems, in which the flow is controlled with a complete valve, which is a combination of a differential pressure valve (5) and a flow control valve (6). In this device the design of the complete valve provides for flow/passage of water via that piping system, in which this valve is mounted. At the same time the levels of pressure difference P1 at the inlet (2), P2 in the intermediate chamber (4) and P3 at the outlet (3) are measured with metering nipples (27a and 27b), while the pressure difference of P2 and P3 during operation may be controlled.

EFFECT: improved characteristics of a device.

8 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: three-way valve includes body 1 with inlet 2, outlet 3, discharge and valve 5 branch pipes and controlled valve block 6 with sleeve 7, stock 8 and valve plate 9. Inlet 2 and outlet 3 branch pipes of housing 1 are located on one and the same axis and separated with solid partition wall 10. Discharge branch pipe is located at a right angle to branch pipes 2, 3 and interconnected with cavity 11 of inlet branch pipe 2. Valve branch pipe 5 is located perpendicular to the plane of axes of inlet 2, outlet 3 and discharge branch pipes. Its cavity 12 is interconnected through hole 13 with cavity 11 of inlet branch pipe 2, and through channel 14 with cavity 15 of outlet branch pipe 3. On surface 16 of inlet branch pipe 2 inside cavity 12 of valve branch pipe 5 there is valve seat 17 for fitting of valve plate 9. Stock 8 of valve block 6 is installed in sleeve 7 with possibility of back-and-forth movement with projection of its end 18 on one side of sleeve 7 and with projection of end 19 on the other side. Valve plate 9 is fixed on end 19. Stock 8 is spring-loaded in sleeve 7 in the direction of displacement of end 18 from sleeve 7. Sleeve 7 is rigidly fixed in valve branch pipe 5 with possibility of contact of valve plate 9 with valve seat 17 at movement of stock 8 inside body 1 and provided with section 20 of external thread located on the outside to fix an element controlled by the valve. Minimum cross sectional area of channel 14, as well as cross sectional area of hole 21 is less than cross sectional area of hole 13 attaching cavity 11 of inlet branch pipe 2 to cavity 12 of valve branch pipe 5.

EFFECT: enlarging the number of devices for smooth adjustment of a heating degree of a heating appliance, and improving reliability.

6 cl, 5 dwg

Safety valve unit // 2514574

FIELD: machine building.

SUBSTANCE: proposed unit comprises two safety valves, four-way feed valves, three full-flow (feed) valves, two changeover valves, high-pressure main lines and low-pressure main line. Third feed valve is connected parallel with sequence first and second full-flow valves. Inlet of four-way full-flow valve is connected to high-pressure main line. First outlet of four-way feed valve is connected to air cylinder of the first changeover device. Second outlet of four-way feed valve is connected to air cylinder of the second changeover device. Third outlet of four-way full-flow valve is connected to low-pressure main line. Low-pressure line is connected in between first and second feed valves. Inlets of thirst feed valve are connected to chambers under safety valves.

EFFECT: possibility of repair and replacement of one safety valve in operation.

4 cl, 2 dwg

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