System of diagnostic of water flowrate

FIELD: instrumentation.

SUBSTANCE: in system comprising water transfer module with pumps, intake tank with supply pipeline, module for analysis of diagnostic parameters, Instruments module, block for input of intake tank volumes, block for water inflow analysis, module for analysis of the diagnostic parameters provided with blocks for input of geometrical characteristics of the intake tanks, input of hydraulic characteristics of supply pipeline, analysis of water pumping from intake tank, Instruments module is equipped with water level transmitters installed in the supply pipeline and in the intake tank, the water transfer module is equipped with shutdown-regulating device with actuator installed in the supply pipeline, control device, at that outputs of the blocks for input of the geometrical characteristics of the intake tank, input of hydraulic characteristics of the supply pipeline, and block for analysis of water pumped from the intake tank are connected to input of the block for analysis of water inflow.

EFFECT: possibility of system use to solve objectives relating diagnostic of water flowrate.

5 cl, 2 dwg

 

The invention relates to measuring equipment, namely to devices on the current flow of wastewater entering the sewage pumping station (SPS).

Known "the Flowmeter - counter non-pressure fluid flows" (see the patent for the invention №2303768, ROS. Federation: IPC G01L 1/00 (2006.01) / Trofimov V. V., Erokhin V. E., M. Ershov N., Kazmin F. G.; publ. 27.07.2007, bull. No. 21) containing the unit of measurement of the average velocity of fluid flow, comprising a blade, a device for measuring the level of fluid flow with lever and float, axis sensing elements measure the angle of rotation of the blade and measure the angle of displacement of the float and the electronic data processing unit. The blade and the lever with the float rigidly attached to the axles in their bearings. The blade is fitted in the plane of the Central longitudinal axis of the flow. Mounts bearings vane and lever with the float is made with the possibility of rotation in the horizontal plane.

The disadvantage of this technical solution is limited in scope, not allowing it to be used for flow measurement of wastewater, since the presence of elements that are in contact with water (the blade, the lever with the float, etc.) will result in the accumulation of them long-fibre substances, leading to device failure.

Known "Device�about to measure the volume of liquid flow in open channels and pressure conduits" (see patent for useful model No. 18769, ROS. Federation: IPC G01F 1/66 / Shafranovskii M. N., Tesakov L. I., Gromov V. G., Proskunew S. Yu., Rogov V. P., Kaminsky Yu. d.; publ. 24.04.2001), comprising measuring the velocity of the liquid, the liquid level gauge, the transmitter and the indicator. While measuring the velocity of fluid made in the form of an optical sensor, consisting of receiving and transmitting optical system raster analyzer and a photodetector device that is connected to the transmitter.

The disadvantage of this technical solution is to limit the scope of open channels and pressure conduits, not allowing it to be used for measuring the flow of wastewater in combined wastewater systems, where permitted discharge mode of operation of gravity sewers.

The closest analogue to the claimed invention provides a useful model System for energy management in the operation of combined sewers pumping stations" (see the patent for useful model No. 94291, ROS. Federation: IPC F04B og 51/00 (2006.01)/ Karmazinov F. V., A. K. kinebas, Trukhin, Y. A., Y. A. Ilyin, Ignatik B. C., Ignatik S. Y., etc.; publ. 20.05.2010, bull. No. 14), including:

- at least two pumps with suction and discharge lines;

the analysis module of diagnosed parameters containing the block of comparison innings, BL�to the correction of diagnosed parameter according to the frequency of rotation of the shaft, the correction block diagnosable parameter diameter of the impeller, the unit of analysis of diagnosed parameters, the block input reference diagnosable parameter, wherein the output of the compare unit feed is connected to the input of the correction block diagnosable parameter according to the frequency of rotation of the shaft, the input of the correction block diagnosable parameter diameter of the impeller is connected to the output of the correction block diagnosable parameter according to the frequency of rotation of the shaft, and outputs blocks of the correction of diagnosed setting the diameter of the impeller and the input reference diagnosable parameter to the input unit of analysis of diagnosed parameters;

module instrumentation comprising at least two sensors feed pump, at least two pressure sensors are installed respectively on the suction and pressure pipelines, the sensor shaft speed of the pump, measuring the power consumption, all sensors and measuring the power consumption of the module instrumentation is made mobile and is further provided with a data recording devices and communication channels, the outputs of the data recording devices, at least two pressure sensors, sensor shaft speed of the pump and meter the power consumption by means of communication channels connected to the input �Loka correction diagnosable parameter according to the frequency of rotation of the shaft, and the outputs of the data recording devices, at least two sensors of the pump output to the input unit of comparison innings;

module power optimization that contains the processing unit of the hydraulic characteristics of networks, the entrance of which is by means of communication channels connected to the outputs of the data recording devices, at least two pressure sensors and the output of the comparison block feeds block energy analysis block input of diagnosed parameters of pumps-competitors, the unit of analysis of energy consumption of pumps-competitors, the block outputs analysis of diagnosed parameters and block the formation of the hydraulic characteristics of networks connected to the input of block energy analysis the outputs of the shaping unit of the hydraulic characteristics of the network and block I of diagnosed parameters of pumps-competitors is connected to the input unit of analysis of energy consumption of pumps-competitors in that block energy analysis the unit of analysis of energy consumption of pumps-competitors is arranged to determine the total energy consumption, the module pumping of water fitted with a receiver tank to a supply pipe, the module instrumentation - sensor intensity rain with a recording device and a data communication channel, the optimization module-power - input unit �the volume of the receiving vessel, the unit of analysis of water inflow, the input block characteristics basin sewer. Suction and discharge piping at least two pumps are connected to the receiving tank, the outputs of the block comparison innings, the input unit volume of the receiving tank, the unit input characteristics basin sewer and recorder gauge data rain intensity using a communication channel connected to the input unit of analysis of water inflow, and the output unit of analysis of water inflow is connected to the input unit of analysis of energy consumption and to the input unit of analysis of energy consumption of pumps competitors.

For this system, characterized by a narrow scope, because it is only for solving problems, monitoring and optimization of combined sewers pumping stations with a limited inflow of wastewater, because sverkhreshetok the flow, for example during intensive rain is of rare occurrence, when the inflow of water will be greater than the sum of capacities of pumps, the pump module water will be flooded and the whole system will fail.

The object of the present invention is to expand the application of the known system.

The task is solved so that in the known system, including:

module pumping water containing at least two pumps with suction and discharge tubing�waters a receiving tank to a supply pipe, suction pipes, at least two pumps are connected to the receiving tank;

the analysis module of diagnosed parameters;

module instrumentation, or containing at least two sensors feed pump, and/or at least two pressure sensors are installed on the discharge piping, and/or measuring the power consumption, all sensors and measuring the power consumption of the module control and measuring devices equipped with recording devices, data and channels of communication;

- input unit volume of the receiving vessel with the communication channel, the unit of analysis of water production in accordance with the present invention:

sensors feed pump is arranged to measure the flow of each pump, a power meter configured to measure current and/or power consumption of each pump, the input unit volume of the inlet tank and the unit of analysis of water inflow are included in the analysis module of diagnosed parameters;

the analysis module of diagnosed parameters is further provided with a block of input geometric characteristics of the receiving vessel, provided with a communication channel, the input unit of the hydraulic characteristics of the inlet conduit provided channel�m communication the unit of analysis of pumping water from a receiving tank equipped with a device recording data and a channel of communication;

module instrumentation is further provided with a water level sensor installed on the supply piping, and a water level sensor installed in the receiving tank equipped with data recorders and channels of communication;

the pumping module is further provided with a water shut-off and regulating device with the Executive authority, installed on the supply piping between the water level sensor installed on the supply piping, and the receiving tank, a control device provided with a communication channel, wherein the output data record of water level sensor installed in the receiving tank, with the help of communication channels connected to the input of the control unit and the input unit of analysis of water inflow, the output of the control device to the input of the Executive body of the shut-off and regulating device, and a control unit configured to generate control signals on the Executive body of the shut-off and regulating device;

- block output input volume of the receiving vessel, the outputs of the data recording devices, at least two sensors feed pump, two pressure sensors and measuring the power consumption using ka�Alov connection is connected to the input unit of analysis of pumping water from the receiving tank, the outputs of blocks of the input geometric characteristics of the receiving vessel, entering the hydraulic characteristics of the inlet pipeline and the recorder unit data analysis pumping water from the receiving tank by means of communication channels connected to the input unit of analysis of water inflow.

There is a scenario, when the control device made in the form of man-machine systems, such as control point.

There is a scenario, when the control device made in the form of regulating device.

There is a scenario, when a block of input geometric characteristics of the receiving vessel is made with the possibility of entering the average cross-sectional area of the inlet tank. The present invention does not exclude various options to determine the average cross-sectional area, for example, calibration results, etc.

There is a scenario, when the input unit hydraulic characteristics of the inlet pipeline is made with the possibility of entering the dependency of the volume of water the level of water in the supply pipeline.

Distinctive features of the claimed "System diagnosis of water consumption are:

1. The implementation of sensors feed pump capable of measuring the flow of each pump;

2. Execution of measuring the power consumption with possible�TEW measure the current and/or power consumption of each pump;

3. The inclusion of block I of the volume of the receiving vessel and block analysis of water inflow in the module composition analysis of diagnosed parameters;

4. An additional supply module analysis of diagnosed parameters unit input geometric characteristics of the receiving vessel, provided with a communication channel;

5. An additional supply module analysis of diagnosed parameters unit input hydraulic characteristics of the inlet conduit provided with a communication channel;

6. An additional supply module analysis of diagnosed parameters unit of analysis of pumping water from a receiving tank equipped with a device recording data and a channel of communication;

7. An additional supply module instrumentation water level sensor installed on the supply piping;

8. An additional supply module instrumentation water level sensor installed in the receiving tank equipped with data recorders and channels of communication;

9. An additional supply module pump water shut-off and regulating device with the Executive authority, installed on the supply piping between the water level sensor installed on the supply piping, and the receiving tank;

10. An additional supply module pump water us�the master control provided with a communication channel;

11. The output of device data records of water level sensor installed in the receiving tank, with the help of communication channels to the input of the control device;

12. The output of device data records of water level sensor installed in the receiving tank, with the help of communication channels to the input unit of analysis of water inflow;

13. The output of the control device to the input of the Executive body of the shut-off and regulating device;

14. The implementation of the control device to generate control signals on the Executive body of the shut-off and regulating device;

15. If you connect through a communication channel unit output input volume of the inlet tank to the input unit of analysis of pumping water from the receiving tank;

16. If you connect through a communication channel outputs to the data recording devices, at least two sensors of the pump output to the input unit of analysis of pumping water from the receiving tank;

17. If you connect through a communication channel outputs of two devices pressure sensors to the input unit of analysis of pumping water from the receiving tank;

18. If you connect through a communication channel of the meter output power to the input unit of analysis of pumping water from the receiving tank;

19. The connection of the communication channel output blakewood geometric characteristics of the receiving vessel to the input unit of analysis of water inflow;

20. The connection of the communication channel output block input hydraulic characteristics of the inlet pipeline to the input unit of analysis of water inflow;

21. The connection of the communication channel output device for a data recording unit of analysis of pumping water from the receiving tank to the input unit of analysis of water inflow;

22. The implementation of the control device in the form of man-machine systems, such as control point;

23. The implementation of the control device in the form of adjusting device;

24. Execution of the block of input geometric characteristics of the receiving vessel with the possibility of entering the average cross-sectional area of the receiving vessel;

25. Execution of the block input of the hydraulic characteristics of the inlet pipeline with the possibility of entering the dependency of the volume of water the level of water in the supply pipeline.

According to the authors, the distinctive features of№1, 2, 8, 10, 11, 13, 14, 22 and 23 in the technical literature known, and others do not, that meets the condition of patentability "novelty".

The combined use in the inventive device these distinctive features allows to obtain the positive effect, which consists in the fact that expanding the scope of the system, because it can be applied to solve problems in the diagnosis of water flow (definition g�of Afik inflow) pumping station, for which the inflow of water will be greater than the sum of capacities of pumps, because:

- the presence of features№7-11, 13, 14, 22, 23 helps to ensure the normal operation of the module pumping of water without flooding the entire system;

- the presence of features No. 1-7, 12, 15-25 allows you to provide a diagnosis of the water flow (definition graphics inflow) in conditions when a goods receipt in the receiving tank is regulated shut-off and regulating device.

The authors proposed system differs from the prototype in a constructive manner.

Fig. 1 is a diagram of the diagnostic system of water inflow, Fig. 2 - example of a graph of water inflow. The device comprises (see Fig. 1): 1. Module pumping water containing:

- at least two pumps 1 and 2 with suction 3, 4 and 5 discharge, 6 pipes, a receiving tank 7 with the inlet conduit 8, while 3 and 4 suction piping, at least two pumps 1, 2 are connected to the receiving tank 7;

- shut-off and regulating device 9 with the Executive body 10, the control device 11, provided with a communication channel 12, is arranged to generate control signals on the Executive body 10 shut-off and regulating device 9;

2. Module instrumentation containing:

or, at least, two sensors 13 and 14 p�villas pump, and/or at least two sensors 15, 16 of the pressure set on the pressure 5, 6 pipelines and/or meter 17 of the power consumption;

- 18 gauge water level installed on the supply piping 8 and the sensor 19 water level, installed in the receiving tank 7, while all sensors 13-16, 18-19 and 17 meter power consumption is provided with a device 20 records the data and communication channels 21.

The sensors 13 and 14, the feed pump is arranged to measure the flow of each pump and the meter 17 power - with the ability to measure current and/or power consumption of each pump.

3. The analysis module of diagnosed parameters containing:

the input unit 22 of the geometric characteristics of the receiving vessel is provided with a communication channel 23;

block 24 analysis of pumping water from a receiving tank equipped with a data recorder 25 and channel 26;

block 27 analysis of water inflow;

the input unit 28 of the volume of the receiving vessel with the communication channel 29;

block 30 input hydraulic characteristics of the inlet conduit provided with a communication channel 31.

Thus:

- shut-off and regulating device 9 with the Executive body 10 is installed on the incoming pipe 8 between the sensor 18 water level, installed on the supply piping 8, and the receiving tank 7;

output device 20 records the data of the sensor 19 water level, installed in the receiving tank 7, by means of communication channels 21 is connected to the input of the control device 11 and the input unit 27 analysis of water inflow, the output of the control device 11 through the communication channel 12 to the input of the Executive body 10 shut-off and regulating device 9;

device 20 records the data of the sensors 13 to 16 and 17 meter the power consumption by means of communication channels 21 are connected to the input unit 24 analysis of pumping water from the receiving tank;

- a data recorder 25 of the block 24 analysis of pumping water from the receiving tank by means of a communication channel 26 is connected to the input unit 27 analysis of water inflow;

- the output of the input unit 22 of the geometric characteristics of the receiving tank by means of a communication channel 23 is connected to the input unit 27 analysis of water inflow;

- the output of the input unit 28 of the volume of the receiving tank by means of a communication channel 29 is connected to the input unit 24 analysis of pumping water from the receiving tank;

the output of the block 30 to the input of the hydraulic characteristics of the inlet pipe by means of a communication channel 31 is connected to the input unit 27 analysis of water inflow.

There are variants of development when:

- a control device made in the form of man-machine systems, for example, the control point;

device management the implementation�about in the form of adjusting device;

- block input hydraulic characteristics of the inlet pipeline is made with the possibility of entering the dependency of the volume of water from the water level in the supply piping;

- block input geometric characteristics of the receiving vessel is made with the possibility of entering the average cross-sectional area of the inlet tank.

The operation of the system illustrated in the example, when the pump module is equipped with two water pumps. In accordance with the present invention the number of pumps can be more, but the principle remains the same.

Waste water via the inlet conduit 8 with an open shut-off and regulating device 9 flows freely into the receiving tank 7, the water level which begins to rise. At the top level is where one pump (1 or 2). After that there are the following modes of operation of the pumping module of water.

The first mode, when the flow rate of the water entering the receiving tank 7, is less than the feed pump. In this mode, the water level in the receiving tank 7 begins to decline. At the minimum level the pump stops. The volume of water V1located in the receiving tank 7 between the first minimum and the first upper level is entered via the input unit 28 of the volume of the receiving vessel.

Storiesim, when the flow rate of the water entering the receiving tank 7, more feeder one pump, but less than two concurrent filing. In the second mode, the module pumping of water falls from the first mode, when the water level in the receiving tank continues to rise to the second upper level. The result turns on the second pump and the water level in the receiving tank 7 begins to decline. Upon reaching the second lowest level one pump is turned off, while one continues to work. The volume of water V2located in the receiving tank 7 between the first minimum and the second upper level is entered via the input unit 28 of the volume of the receiving vessel.

The third mode, when the flow rate of the water entering the receiving tank 7, more than two concurrent filing. In the third mode, the module pumping of water falls from the second mode, when the water level in the receiving tank continues to rise to the third upper level. The volume of water V3located in the receiving tank 7 between the first minimum and the third upper level is entered via the input unit 28 of the volume of the receiving vessel.

Information about the increased through the output device 20 records the data of the sensor 19 water level, installed in the receiving tank 7, by means of the communication channel 21 is supplied to the input of the control device 11. Pre�disgust flooding module pumping water from the outlet of the control device 11 through the communication channel 12 to the input of the Executive body 10 shut-off and control device 9 receives a command to cover. As a result of:

- the water level in the receiving tank 7 will start to decrease;

- the level of water in the supply conduit 8 will start to rise, as it will begin to accumulate water.

Throughout the third mode, the control device 11 through the cover-opening will maintain the water level, for example, on the third upper level. The system will return from the third mode to the second, when in the fully open shut-off and regulating device 9, the water level in the receiving tank 7 will continue to decline.

These modes module pumping water are "start-stop". The present invention does not exclude other type of mode of operation, when the water level in the receiving tank 7 is maintained at approximately the same level due to the on-off pump units. It is practiced on large sewage pumping stations, where the number of pumps considerably more than two. But the third mode is inevitable when you receive an unplanned water discharges, for example, in the rain.

Overall, in the third mode, the total water extraction pumps will be less than the incoming flow. Therefore, to evaluate the total performance of the pumps is not possible. For this task included in the work module of instrumentation and analysis of diagnosed parameters

Sensors 13-19 synchronously (i.e. at the same time) and using the same time interval (e.g. 1 minute) take readings and record in the device 20 of the recording data thus stored the information. Thus the present invention provides for the possibility of two variants of application of the sensors 13 to 17.

The first option, when used only one type, i.e. either only the sensors 13 and 14, feed pump, or only the sensors 15, 16 pressure, or only the 17 meter power consumption. This is sufficient to block 24 analysis of pumping water from a receiving tank where the information comes from sensors via communication channels 21, analyze and save the data recorder 25 array of information characterizing a graph of changes with time of flow of water pumped from the receiving tank 7. Figure 2 for example this chart is indicated at 1, reflecting the change in the flow rate of Qfrom, thousand m3/h.

When the unit is pumping water in the "start - stop" consumption of water pumped in the first embodiment further assessed by the volumetric method given the volume of the receiving vessel. Information (V2V2V3etc.) about the latter enters the block 24 analysis of pumping water from the receiving tank by means of a communication channel 29 of the block 28 of the entering volumes receiving rezé�the coast. In this case, the sensors 15, 16 and 17 meter the power consumption is only used for timing the beginning and end of pumping water from the receiving tank 7. The accuracy of this method depends on the mode of operation of the module pumping of water, as the flow rate in this case is estimated as the average duration of filling and pumping of the receiving vessel 7. The smaller the duration, the greater the accuracy of the evaluation.

The second option, when they are applied simultaneously. This can be implemented in the systems they already have installed to control process performance. In this case, will increase the reliability of the whole system and the accuracy of the estimation by comparison of the measurement results.

For the current flow to the input unit 27 analysis of water inflow enters the following information:

- from the device 25, the data writing unit 24 analysis of pumping water from the receiving tank 7 by means of the communication channel 26. Information is presented in the form of a graph changes over time of the flow of water pumped from the receiving tank 7;

- from the exit device 20 records the data of the sensor 19 water level, installed in the receiving tank 7, by means of the communication channel 21. Information is presented in the form of a graph of the time variation of water level in the receiving tank 7.Figure 2 for example this chart indicated at 2, reflecting the change in the level of NRESM. V. C;

- from the output unit 22 of the input geometric characteristics of the receiving vessel (for example, the average cross-sectional area) using the communication channel 23. Information is presented in the form of constants. For this reason, the block 22 is not equipped with a data recorder. However, the product of this constant with the values from the array of information about the water level in the receiving tank 7 from the output device 20 records the data of the sensor 19 water level, can, in block 27 analysis of water inflow to obtain information in the form of a graph changes over time of the volume of water in the receiving tank 7 (figure 2 not shown);

- from the exit device 20 records the data of the sensor 18 water level that is installed on the incoming pipe 8, by means of the communication channel 21. Figure 2 for example this chart indicated 3 reflecting the change in the level of NgreyM. V. C;

- from the output of the block 30 to the input of the hydraulic characteristics of the inlet pipeline (e.g., in the form of dependence of the volume of water the level of water in the supply pipe) with the help of the communication channel 31. Information is presented in the form of the function. For this reason, the block 30 is not equipped with a data recorder. However, the use of this function allows on the basis of information received from the sensor 18 of the water level in the supply�the next pipeline calculate the volume of water in it.

This information is sufficient for what would be in the block 27 analysis of water inflow on the basis of water balance equations to determine the schedule of water flowing in the supply line 8 before the receiving tank 7. Figure 2 for example this chart indicated at 4, reflecting the change of water inflow QPR, thousand m3/h.

Thus, the proposed system meets the criterion of "industrial applicability".

1. Diagnostic system water flow that includes a module pumping water containing at least two pumps with suction and discharge lines, a receiving tank to a supply pipe, suction pipes, at least two pumps are connected to the receiving tank, the analysis module of diagnosed parameters, the module instrumentation, or containing at least two sensors feed pump, and/or at least two pressure sensors are installed on the discharge piping, and/or measuring the power consumption, in this case, all sensors and measuring the power consumption of the module instrumentation equipped with data recording devices and communication channels, the input unit volume of the receiving vessel with the communication channel, the unit of analysis of water inflow, characterized in that the sensors feed n�Sosa is arranged to measure the flow of each pump, a power meter configured to measure current and/or power consumption of each pump, the input unit volume of the inlet tank and the unit of analysis of water inflow are included in the analysis module of diagnosed parameters, the analysis module of diagnosed parameters is further provided with a block of input geometric characteristics of the receiving vessel, provided with a communication channel, the input unit of the hydraulic characteristics of the inlet conduit provided with a communication channel, the unit of analysis of pumping water from a receiving tank equipped with a device recording data and a communication channel, the module instrumentation is further provided with a water level sensor installed on the supply piping, and a water level sensor, installed in the receiving tank equipped with data recording devices and communication channels, the pumping module is further provided with a water shut-off and regulating device with the Executive authority, installed on the supply piping between the water level sensor installed on the supply piping, and the receiving tank, a control device provided with a communication channel, wherein the output data record of water level sensor installed in the receiving tank, with the help of communication channels connected to the input mustache�device management and input unit of analysis of water inflow, the output of the control device to the input of the Executive body of the shut-off and regulating device, and a control unit configured to generate control signals on the Executive body of the shut-off and regulating device, the output of the input unit volume of the receiving tank, the outputs of the data recording devices, at least two sensors feed pump, two pressure sensors and measuring the power consumption with the help of communication channels connected to the input unit of analysis of pumping water from the receiving tank, the outputs of blocks of the input geometric characteristics of the receiving vessel, entering the hydraulic characteristics of the inlet pipeline and the recorder unit data analysis pumping water from the receiving tank by means of communication channels connected to the input unit of analysis of water inflow.

2. A diagnostic system for water flow according to claim 1, characterized in that the control device made in the form of man-machine systems, such as control point;

3. A diagnostic system for water flow according to claim 1, characterized in that the control device is designed in the form of adjusting device;

4. A diagnostic system for water flow according to claim 1, characterized in that the input unit geometric characteristics of the receiving vessel is made with the possibility of entering the middle area of the cross scenepirates reservoir;

5. A diagnostic system for water flow according to claim 1, characterized in that the input unit of the hydraulic characteristics of the inlet pipeline is made with the possibility of entering the dependency of the volume of water from the water level in the supply piping.



 

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3 cl, 4 dwg

FIELD: machine building.

SUBSTANCE: in the formula PS=P1+(F1|F2F1|)×(|P1P2|);PS=P2+(F2|F2F1|)×(|P1P2|); PS is the pressure of the start of safety valve opening; P1 - pressure in the inner cavity of the safety valve at the first measurement of its pressure of opening start; P2 - pressure in the inner cavity of the safety valve at the second measurement of its pressure of opening start; F1 - force required to open the safety valve at the first measurement of its opening start pressure; F2 - force required to open the safety valve at the second measurement of its opening start pressure.

EFFECT: reduced labour inputs in the determination of pressure of safety valve opening start without the valves' demounting from a pipeline by means of measuring the forces required to open the valves at two different pressures in their inner cavity and by the following calculation of pressure of safety valve opening start.

1 dwg

Pressure regulator // 2526899

FIELD: machine building.

SUBSTANCE: invention relates to flow regulators, particularly, to flow regulators with bowl-shape seat. Regulator consists of valve body to define fluid flow and valve seat, drive case engaged with valve body, control member arranged in drive case and adapted to displacement relative to valve body and valve seat for regulation of fluid flow at displacement between open position and closed position whereat said control member engages with valve seat, and spring articulated with control member to displace the latter to open position. Said control member has the surface directed to valve seat and furnished with recess. Recess can be reamed, or concave, or conical or have any other suitable surface.

EFFECT: higher reliability, perfected adjustment.

19 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: reference sample comprises a metal base with a central zone of reference complex stressed condition through the base thickness. At the edges of the base at one or different sides there is one or several zones of pad welds from another metal, coefficient of linear expansion and yield point of which is lower than the coefficient of linear expansion and yield point of the base metal. The base is first exposed to high-temperature tempering, afterwards control marks or a grid of measurement bases are applied onto surfaces of the central zone of the base at two sides, for two test measurements after high-temperature tempering of the base before applying pad welds and in the end of thermal treatment of the base already with pad welds. The form of the base, locations of pad welds and the mode of thermal treatment are defined in advance as a result of computer simulation modelling by the method of finite elements with account of grades of the base metal and pad welds metals and the required reference complex stressed condition of the central zone of the base through its thickness.

EFFECT: increased validity of results of measurements of mechanical stresses in cross sections of various thick-walled metal structures.

2 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: method of determining tangential stress in steel pipelines involves making a sample in form of a hollow cylinder from the same material as the structure; step by step loading of the sample; measuring coercitive force indicators at each loading step, with a defined orientation of magnetic flux generated in the coersimeter relative the sample; obtaining a relationship between the coercitive force indicators and values of stress in the sample; measuring the coercitive force indicators of the metal of the structure; determining stress values using the obtained relationship; tangential stress in the sample is generated by applying torque to the sample; the coercitive force is measured along the axis of the sample or the pipeline twice, while directing magnetic flux in opposite directions. The coercitive force indicator used when determining tangential stress is the magnitude of the difference between measured values of the coercitive force.

EFFECT: high accuracy of determining tangential stress in surface steel pipelines.

1 dwg, 1 tbl, 1 ex

FIELD: physics.

SUBSTANCE: described is an ultrasonic transducer (110) for use in a fluid medium (116). The ultrasonic transducer (110) includes at least one core (118) having at least one acoustoelectric transducer element (112), particularly a piezoelectric transducer element (112). The ultrasonic transducer (110) also has at least one housing (120) having at least one opening (122), at least partially insulated from the fluid medium (116) by an insulating film (130) connected to the core (118). The insulating film (130) has at least one compensation deformed portion (134) for compensating for stretching thereof and enabling relative movement of the core (118) and the housing (120) of the ultrasonic transducer.

EFFECT: improved design.

19 cl, 18 dwg

FIELD: measurement equipment.

SUBSTANCE: proposed group of inventions relates to ultrasonic converters for control of fluid medium. An ultrasonic converter for control of fluid medium includes at least one housing with at least one inner space and at least one core with at least one electroacoustic converting element, which is arranged in the inner space. Besides, the housing has at least one opening facing to fluid medium, which is at least partially closed with at least one insulating film, the edge of which is tightly sealed by means of at least one sealing material. Besides, the housing has a flange located on the fluid medium side, which at least partially envelopes the opening and to which the insulating film is at least partially adjacent, with that, the insulation film edge ends together with the housing flange. A sensor containing such ultrasonic converter is proposed as well.

EFFECT: group of inventions allows reliable protection of the inner space of the converter housing against penetration of test media.

11 cl, 7 dwg

FIELD: physics.

SUBSTANCE: method includes, by using a known property of electroacoustic radiators, changing the ratio of the values of the active and reactive components of radiation impedance thereof in accordance with fluctuations of characteristics of the medium - density, temperature and pressure. Therefore, by controlling the ratio of said values, information on characteristics of the medium and their changes, particularly accompanying the pumping of liquids in pipelines, can be obtained. During operation of the generator on a complex load, said ratio is uniquely characterised by phase shift between voltage applied to the radiator and current consumed by the radiator. Therefore the phase shift is selected as the monitored parameter in the present method of monitoring flow rate and volume of pumped liquid media in pipelines.

EFFECT: simple design of devices using said method with considerable reduction of expenses on production, installation and operation, which improves reliability of the latter and enables to realise a mobile version of the device overall.

FIELD: measurement equipment.

SUBSTANCE: invention is intended for use in systems of control and measurement of speed and flow of liquid and gaseous products. It may be used in transportation of fuel products, in water supply, medical equipment, as well as in oceanography in measurement of speed of currents in seas and oceans.

EFFECT: increased accuracy of measurement during control of flow parameters, accuracy in measurement of flow speed may be increased, if one knows speed of sound propagation in the medium and value of delays in electronic circuits and acoustic converters.

FIELD: measurement equipment.

SUBSTANCE: invention relates to an ultrasonic flow-type sensor (110) for fluid medium. The offered ultrasonic flow-type sensor (110) contains, at least, two ultrasonic transducers (120, 122), located in a flow pipe (112) with a fluid medium flow, and distributed along the fluid medium flow. The ultrasonic flow-type sensor (110) also has a reflecting surface (126), and the ultrasonic transducers (120, 122) are installed with a possibility of sending to each other of ultrasonic signals by means of single reflection of latter on the reflecting surface (126). Between the ultrasonic transducers (120, 122) a deflecting device (132) is provisioned, which is designed to suppress main spurious ultrasonic signals reflected by the reflecting surface (126) and incident on the deflecting device (132), by means of their deflection away from the ultrasonic transducers (120, 122). The deflecting device is located, at least, in the middle third of the connecting interval between the ultrasonic transducers (120, 122) and has, at least, one deflecting surface (134, 136; 150). Normal lines to the deflecting surface (134, 136; 150) form with the normal line to the reflecting surface (126) angles, the average value of which exceeds 10°.

EFFECT: improvement of accuracy of measurements due to significant suppression of spurious ultrasonic impulses.

7 cl, 34 dwg

FIELD: physics.

SUBSTANCE: apparatus for transmitting ultrasonic signals through an inspected medium in a pipeline comprises an ultrasonic signal source, at least N controlled switches connected by their corresponding leads to the output of the ultrasonic signal source through a decoupling circuit, at least M first ultrasonic piezoelectric transducers installed on the pipeline with the inspected medium and connected by their corresponding leads to corresponding second leads of some of the at least N corresponding controlled switches, M second ultrasonic piezoelectric transducers installed on the pipeline with the inspected medium and connected by their corresponding leads to the corresponding second leads of the other of the least N corresponding control switches, an amplifier directly connected by its input to the output of the decoupling circuit, and a control circuit connected by its corresponding outputs to the control inputs of the N controlled switches and to the output of the ultrasonic signal source.

EFFECT: eliminating the effect of dispersion of parameters of electronic components on the process of transmitting ultrasonic signals through electronic circuits of the apparatus and, consequently, improving the accuracy of measuring volume flow rate of the inspected medium in the pipeline.

3 dwg

FIELD: measurement equipment.

SUBSTANCE: converter unit for an ultrasonic flow meter includes a piezoelectric module. With that, the piezoelectric module includes a housing having a central axis, the first end, the second end opposite to the first end, and the first internal chamber passing in radial direction from the first end. Besides, the piezoelectric module includes a piezoelectric element located in the first internal chamber. Besides, the piezoelectric element includes braces located in the first internal chamber between the piezoelectric element and the housing; besides, each brace is located in radial direction between the piezoelectric element and the housing.

EFFECT: improvement of quality of ultrasonic signals.

25 cl, 9 dwg

FIELD: measurement equipment.

SUBSTANCE: converter unit of an ultrasonic flow meter is proposed. At least some of explanatory examples of implementation represent systems containing the following: a branch pipe that forms an outer surface, a central passage and a mounting seat of converters, which passes from the outer surface to the central passage; and a converter unit connected to the mounting seat of the converters. The converter unit includes the following: a transition element connected to the branch pipe; with that, the transition element has the first end arranged in the mounting seat of the converters, and the second end located on the outside of the outer surface, a piezoelectric module with a piezoelectric element; with that, the piezoelectric module is connected directly to the first end of the transition element and arranged in the outer surface; a transformer module with a transformer arranged in it; with that, the transformer module is directly connected to the second end of the transition element and arranged on the outside of the outer surface; and an electrical conductor arranged in the passage by means of the transition element and attaching the transformer to the piezoelectric element.

EFFECT: improving reliability of ultrasonic flow meters; reducing the time for detection of failure and repair.

20 cl, 12 dwg

FIELD: measurement equipment.

SUBSTANCE: method to measure flow rate of a multi-phase fluid, which consists in measurement of acoustic noise created by liquid movement as it flows via the available cross section, the speed of fluid passage is determined by frequency of acoustic noise caused by unevenness of liquid motion, previously they measure flow temperature and pressure in the pipe, density of each phase, and then, based on proposed dependences they calculate volume or mass fractions of each phase. At the same time, using laboratory results, they make equations of dependence of sound speed in each phase on pressure and temperature, and the equation of sound speed for water is complemented with the dependence on water salinity, at the same time the produced equations are recorded into a computing unit, they measure pressure and temperature in the pipeline, water salinity, they measure and record amplitudes and frequencies of oscillations in the pipe, along which the multi-phase liquid is flowing, the measured range of frequencies is divided into parts that correspond to each phase, in each of the parts after application of quick Fourier transforms they identify maximum values of amplitudes and appropriate frequencies, and calculate the volume flow rate of each phase of liquid in accordance with the appropriate formula.

EFFECT: reduced error of measurement in each phase.

4 dwg

FIELD: measurement equipment.

SUBSTANCE: method to measure medium flow, in which the main flow is summed with the back flow, the summary flow is sent via the main flow meter, measured, then divided into two flows, one of which is considered equal to the inlet one and is sent to the load, the other is considered the back flow, measured by its flow meter and subtracted from the summary flow. At the same time the entire range of measurement is divided into two parts - the first part of measurement with the back flow, the second part of measurement - without the back flow. In the first part of the range the back flow is forcedly sent to the main flow for summation, its value is changed inversely to the value of the main flow. In the second part of the range the flow rate of the main flow is measured by the main flow meter without the back flow. Besides, using the invention, they set the relation between the back flow and the main flow as proportionate and inverse.

EFFECT: increased range of flow measurement.

4 cl, 1 dwg

FIELD: investigating or analyzing materials.

SUBSTANCE: device comprises measuring chamber, two electroacoustical converters mounted inside the chamber, commutator, generator-receiver of ultrasonic oscillations, and system for measuring and recording. The device is additionally provided with the unit for control of actuators. The system for measuring and recording comprises converter, unit for processing information, unit for accumulating information, and indicator.

EFFECT: enhanced quality of monitoring.

1 dwg

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