Three-way valve

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

 

The invention relates to a regulating valve, in particular for a three-way valve for connecting appliances water heating with the possibility of regulating the degree of heating.

From the document EN 96220 U1 known multi-way thermostatic valve for one-pipe heating system with radiators (radiators or convectors), inlet and outlet coolant from the heater pipes. This valve includes a housing with inlet and two outlet nozzles, shut-off element, the partition with the saddle locking element that divides a passage of the body into two cavities, one of which is made with an adjustable cross section of the coolant passage, and the other cavity is made full bore when placing the locking element on the saddle, and his ascent with the possibility of a permanent unobstructed message of this cavity with bypass and discharge the coolant from the heater pipe through the second discharge pipe.

Known valve has a simple structure and has a low hydraulic resistance, not requiring a mandatory circulation pump in the heating system.

However, this valve is designed for installation in heating systems of houses with more than 8 storeys. This is because mo is in high rise buildings total flow in the system is large enough, and the value specified in the document EN 96220 U1 costs", the heater/bypass (20-25/80-75) provides passing through the heater quantity of fluid, preventing it from being "cool" with reasonable values of the area of the radiating surface of the heater.

In low-rise buildings total expenditure of the heat carrier in the heating systems is much lower. For example, in a 4-storey house it 6 times less than in the 24-storey building with the same layout. In the low house 20-25% of the coolant passing through the heater, it is not enough to heat the room (even at greatly increased area of the heater and keep the temperature of the "return line" regulated SNiP temperature schedule. Although the document EN 96220 U1 refer to the possibility of changes in the ratio of costs by changing the internal dimensions of the valve, however, this change is limited to values 15-35/85-65 (see C. N. Karpov "hot-water heating Systems of multi-storey buildings. Technical design guidelines", M, AVOK PRESS, 2010, Chapter 2). Essentially the only internal valve size, which you can change, is the area of the bore, since the pipeline supplying the coolant in the heater has a standard cross-section, and the internal volume samog the valve has almost no influence on the ratio of costs. Theoretically, this ratio can vary in the range 0-35/100-65. The ratio of 0/100 corresponds to a fully closed thermoclean, when all the flow goes through the bypass, which, in turn, imposes limitations on its capacity as top and bottom, because the size of the working medium flow for each building is strictly regulated.

From the document EN 118007 U1 known three-way valve to connect the water heating device, comprising a housing with inlet, outlet, bypass valve and nozzles, as well as controlled valve unit with the sleeve, shaft and valve plate. Input and output connections are located on the same axis and separated by a solid wall, the axis of the outlet pipe is at right angles to the axis of the inlet and outlet fittings and communicates with the cavity of the input pipe and the axis of the valve of the nozzle is perpendicular to the plane of the axes of the inlet, outlet and outlet nozzles, and its cavity is communicated via located on the axis of this cavity is a hole with a cavity inlet pipe, and a through channel with a cavity of the outlet pipe. On the surface of the inlet pipe within the valve cavity of the socket around the openings of the input tube is a valve seat for landing valve plate, and a rod controlled valve block is and is installed in the sleeve with the possibility of reciprocation with a protrusion at one end with one side of the sleeve and the protrusion of the second end on the other hand, which is fixed to the valve plate, and a spring-loaded rod in the sleeve in the direction of pushing the first end of the sleeve. When this sleeve is controlled valve block rigidly fixed to the valve inlet housing with the possibility of contact of the valve plate with the valve seat when moving rod into the housing and located outside the area of the outer thread for fixing the control valve element.

The design is known valve will allow you to connect it to the single-pipe heating system with the formation of the bypass area and has sufficient reliability in operation, and at the stage of commissioning in ensuring the accuracy of adjustment with minimal variation in adjustment between products of the same series.

However, this valve has the same drawbacks as described above. Failure to provide the coefficient of penetration (the ratio of the number of coolant passing through the heater to the total flow through the branch heating system) more than 35% is typical for all anotherentity valves (see the above book Century. N. Karpov), which limits their use.

In addition, due to the large number of turns and braking of the flow in the valve is similar to the performance it occurs considerably the th pressure loss, which further reduces the rate of flow of the coolant in the heater and, as a consequence, leads to an excessive increase in the area of the radiating surface of the heating devices and excessive cooling of the "return line".

Closest to the valve according to the present invention is a three-way valve company HERZ ARMATUREN GmbH (Austria) Herz CALIS-TS-RD DN25, 776140 (http://herz-armaturen.ru/three-way-valves/l-7761-39/7sphrase id=32835).

This valve includes a housing with an internal cavity and with the input, output, and bypass pipe, the first saddle located between the internal cavity of the housing and the outlet pipe, the second saddle located between the internal cavity of the housing and a branch pipe, a valve unit comprising first and second valve plates mounted on the movable element to contact the first plate of the first seat in one end position of the moving element and the second plate with the second seat in the other end position of the moving element, means for moving the valve block and means sealing the internal cavity of the housing. When this valve unit is spring-loaded in the direction of pressing the second plate to the second saddle, and means for moving the valve unit includes going from house movable rod made interoperable with driving the m element.

When using this valve in its original position, the entire flow of the coolant through the first seat goes to the outlet associated with the convector. With increasing temperature control element acts on the rod, moving it down, covering thereby the flow through the first seat in the outlet and opening the flow through the second saddle in the drain pipe. With the increase in temperature of the first plate fully closes the first saddle, and the entire flow of the coolant goes through the second saddle in the drain pipe. As the cooling convector room temperature decreases, the plunger control ceases to operate on the stock, and under the action of the spring movable element, bearing plates, returns to its original state, causing the fluid re-enters the outlet, heating convector, etc.,

This valve is used to provide coolant flow rate through the heater and the bypass ratio 0-100/100-0, which makes possible its use in low-rise construction. However, due to the limited stroke of the control element thermostatic heads of any type (0,22-0.36 mm/°C) displacement of the moving element of the valve unit, and hence the valve plates are also very small. Thus, even in the fully open state is AI (valve unit is located in one of the end positions) hydraulic resistance of the valve is very significant. Increased flow rates contribute to numerous braking and turns the coolant flow.

All this leads to a large pressure losses in the branches of the heating system and very likely need to use in the system of the circulation pump.

In addition, all the valves significant impact on their work provides the value of the static pressure of the coolant due to the direct impact of working environment on the valve stem.

All these designs require periodic replacement of the sealing element due to its abrasion due to the gradual displacement of the rod. In this case the wear of the sealing element can cause a coolant leak.

The invention aims to remedy these disadvantages, in particular the creation of a simple and reliable valve design, more precise temperature control, the reduction of hydraulic resistance to the flow of coolant and ease of use.

This problem is solved in a three-way valve, comprising a housing with an internal cavity and with the input, output, and bypass pipe; a first seat located between the internal cavity of the housing and the outlet pipe; a second seat located between the internal cavity of the body and bypass the PA is robcom; the valve block includes first and second valve plates mounted on the movable element to contact the first plate of the first seat in one end position of the moving element and the second plate with the second seat in the other end position of the rolling element, and the valve unit is spring-loaded in the direction of pressing the second plate to the second saddle; means for moving the valve unit, which includes going from house movable rod is made with the possibility of interaction with a control element; and means sealing the internal cavity of the housing.

According to the invention the movable element of the valve unit is made in the form of a pivoted lever mounted in the housing can be rotated around an axis located between the output and bypass pipes perpendicular to the plane in which lie the axes of the output and outlet manifolds; valve plates installed on both sides of the lever about its longitudinal axis; a movable rod means to move the valve block is located essentially parallel to the axis of rotation of the lever and passes through the fitting mounted on the valve body; and means for moving the valve block contain the power stroke in the form of two shoulders arm mounted on an axis, located in narodnostnej cavity essentially couples lelno the longitudinal axis of the lever in the middle position, more shoulder two shoulders of the lever through the sealing element is omitted in the internal cavity of the housing and its end kinematically connected to the pivoting arm, and a lower shoulder, two shoulders of the lever in contact with a movable stem, with the valve block is spring-loaded by a spring installed in narodnostnej cavity and interacting with two shoulders lever.

Performing a valve according to the invention, providing a ratio of the heat medium flow through the heater and bypass 0-100/100-0, allows to reduce the hydraulic resistance to flow due to the reduced number of turns and braking of the thread, and also significantly reduce the influence of the value of the static pressure on the valve due to the execution of the moving element of the valve unit in the form of a pivoted lever, which is held in the internal cavity of the housing through a sealing element. In addition, this design of rolling element eliminates the need for periodic maintenance of the valve during operation due to the lack of translational movement of the moving element of the valve unit relative to the sealing element and abrasion of the latter, while providing a reliable separation of the liquid and narodnostnej cavities.

Preferably the input and vychodnarske are located along the same axis, and the axis of the outlet pipe is perpendicular to the axis of the input and output sockets, which allows to minimize the hydraulic resistance to flow.

The sealing element may be made in the form of a corrugated diaphragm or bellows, which allows reliable sealing neizkostu the cavity of the valve with minimal effort their counter-movement means to move the valve block.

The kinematic connection of a larger shoulder, two shoulders lever rotary lever can be carried out by educated on the end of a specified shoulder of the plug, covering the rotary lever.

The invention is illustrated by drawings.

In Fig.1 shows a three-way valve according to the invention, a view in section;

in Fig.2 - section a-a in Fig.1;

in Fig.3 is a section along B-B in Fig.1.

The three-way valve includes a housing 1 with an internal cavity 2 and the input, output, and bypass pipes 3, 4 and 5, respectively. Inlet and outlet nozzles 3 and 4 are located along the same axis, and the axis of the outlet pipe 5 is perpendicular to the axis of the inlet and outlet pipes 3 and 4. In the housing 1 between the internal cavity 2 of the housing and the outlet pipe 4 is the first saddle 6, and between the internal cavity 2 of the housing and a branch pipe 5 has a second saddle 7. Moreover, in case 1, set the priority valve unit, includes first and second valve plates 8 and 9, mounted on the movable element in the form of a pivoted lever 10. The lever 10 is installed in the housing 1 can be rotated around an axis 11 that is located between output and bypass pipes 4 and 5 perpendicular to the plane in which lie the axes of these nozzles. Valve plates 8 and 9 are installed on both sides of the lever 10 about its longitudinal axis, so that in one extreme position of the lever 10, the first plate 8 is in contact with the first seat 6, and in the other extreme position of the lever 10, the second plate 9 is in contact with the second saddle 7.

The three-way valve also includes means for moving the valve unit including a movable rod 12 and the amplifier progress in the form of two shoulders of the lever 13 mounted on an axis 14 that is located essentially parallel to the longitudinal axis of the lever 10 in its middle position. More shoulder two shoulders 15 of the lever 13 through the sealing element 16 is omitted in the internal cavity 2 of the housing 1 and contains at its end a fork 17 covering the rotary lever 10, thereby providing a kinematic relationship with the pivoting arm 10. A lower shoulder, two shoulders 18 of the lever 13 is in contact with the rod 12, which is installed in the fitting 19, fixed to the body 1, with the possibility of longitudinal movement essentially parallel to the axis 11 of rotation of the lever 10. Two shoulders the first lever 13 is spring-loaded in the direction of the second pressing plate 9 to the second saddle 7, for example, by means of the coil spring 20 is compressed. The sealing element 16, made in the form of a corrugated diaphragm or bellows, is separated from the internal cavity 2 of the valve neizkostu cavity so that the axis 14, which is equipped with two shoulders lever 13, is located in narodnostnej cavity.

On the fitting 19 has also a control element in the form of thermostatic head 21, the plunger which is in contact with the rod 12.

The three-way valve operates as follows.

In depicted in Fig.1 position three-way valve is in an intermediate state, and the flow of fluid fed into the inlet pipe 3, is distributed between the heater and the bypass passing through the output and outlet pipes 4 and 5.

With increasing temperature thermostatic head 21 exerts an influence of the plunger, the movable rod 12 (Fig.2), moving it in the direction shown by the arrow C. the Rod 12, interacting with a smaller shoulder, two shoulders 18 of the lever 13, transmits the movement of the pusher thermostatic head 21 greater shoulder two shoulders 15 of the lever 13, providing the movement of the plug 17 in the direction shown by the arrow g (Fig.1, 2). The plug 17, interacting with the pivoting arm 10, rotate it, thereby bringing the first valve plate 8 to the first saddle 6 and separating the second valve plate 9 from the second Sedl is 7. Thus the coolant flow through the heater is reduced, and through the bypass increases. As a result, the heater cools down, the temperature drops, the working fluid in thermal head 21 is reduced in volume and the plunger ceases to exert pressure on the movable rod 12. Under the action of the spring 20 two shoulders lever 13 is moved in the direction shown in Fig.2 by the arrow ∂, closing the second valve plate 9 to the second saddle 7, and separating the first valve plate 8 from the first seat 6. This increases the coolant flow through the heater, which causes it to heat up and, as a consequence, the temperature rise in the room. The process is cyclical and continuous, maintaining the temperature in the room in accordance with the set value, opredelyaem selected position regulating element thermostatic head.

Although the three-way valve described by its interaction with thermostatic head, the valve according to the invention can be used in combination with other controls, for example with thermoelectric actuator or a control element in the form of a manually driven arm.

1. The three-way valve, comprising a housing with an internal cavity and with the input, output, and bypass pipe; a first seat located between the internal cavity to the of Cusa and outlet pipe; the second saddle located between the internal cavity of the housing and bypass pipe; a valve unit comprising first and second valve plates mounted on the movable element to contact the first plate of the first seat in one end position of the moving element and the second plate with the second seat in the other end position of the rolling element, and the valve unit is spring-loaded in the direction of pressing the second plate to the second saddle; means for moving the valve unit, which includes going from house movable rod is made with the possibility of interaction with a control element; and means sealing the internal cavity of the housing, characterized in that that the movable element of the valve unit is made in the form of a pivoted lever mounted in the housing can be rotated around an axis located between the output and bypass pipes perpendicular to the plane in which lie the axes of the output and outlet manifolds; valve plates installed on both sides of the lever about its longitudinal axis; a movable rod means to move the valve block is located essentially parallel to the axis of rotation of the lever and passes through the fitting mounted on the valve body; and means for moving the valve block contain the power stroke in two-shoulders rich the ha, installed on an axis located in narodnostnej cavity essentially parallel to the longitudinal axis of the lever in the middle position, a larger shoulder two shoulders of the lever through the sealing element is omitted in the internal cavity of the housing and its end kinematically connected to the pivoting arm, and a lower shoulder, two shoulders of the lever in contact with a movable stem, with the valve block is spring-loaded by a spring installed in narodnostnej cavity and interacting with two shoulders lever.

2. The valve p. 1, characterized in that the inlet and outlet nozzles are located along the same axis, and the axis of the outlet pipe is perpendicular to the axis of the inlet and outlet pipes.

3. The valve p. 1, characterized in that the sealing element is designed as a corrugated membrane.

4. The valve p. 1, characterized in that the sealing element is designed in the form of bellows.

5. The valve p. 1, characterized in that the kinematic connection of a larger shoulder, two shoulders lever rotary lever is a formed at the end of the specified shoulder plug, covering the rotary lever.



 

Same patents:

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.

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FIELD: heating.

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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.

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EFFECT: optimised heat production and higher efficiency.

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EFFECT: power savings, better convenience.

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EFFECT: improved characteristics of a device.

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FIELD: machine building.

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

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EFFECT: use in the single-pipe heat supply system of double control makes this single-pipe heat supply system high-efficient with power consumption depending on load.

15 cl, 6 dwg

FIELD: machine building.

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EFFECT: automated information system provides continuous monitoring and analysis of each pump unit, volumetric and mass flow rate of pumped liquid, pressure created with the pump, consumed power, efficiency coefficient of the pump, specific consumption of electric power, time to failure, bearing temperature of the pump house, pump housing temperature and vibration level.

FIELD: mechanical engineering.

SUBSTANCE: group of inventions relates to the armature construction field and is used as a thermostatic mixing valve for an application particularly in domestic sanitary equipment to supply flow water, having the controlled temperature. The thermostatic mixing valve comprises a mixing device (31) and an actuating device (37). The mixing device (31) moves between two seats (11, 11a) for mixing fluids with different temperatures. The actuating device (37) is sensitive to the temperature of the mixed fluid to create a stroke of position control of the mixing device between two seats for supplying the mixed liquid with an adjusted temperature. An absorption mechanism (23) comprises one (11a) of the mentioned seats. The actuating device (37) is mounted between the mixing device (31) and the absorption mechanism (23). The absorption mechanism (23) is designed with a possibility to move in the direction of a distance increase between the two seats, when the mixing device (31) bears on the other seat (11), to remove the stroke excess of the actuation device (37) by absorption due to the influence of the excessive temperature change of the mixed fluid. There is a constructive version of the valve design.

EFFECT: group of inventions is aimed at simplification of the thermostatic valve design and increase of convenience of its use.

5 cl, 4 dwg

FIELD: machine building.

SUBSTANCE: group of inventions refers to a three-way high pressure pneumatic valve. A device for control the fluid medium under high pressure comprises a casing fitted by the first, second and third ports which are selectively connected to each other streamwise through a control component. The said component is able of travelling between the first and the second reference positions for the selective direction of the fluid medium along the path between the first and the second ports or alternatively between the first and the third ports. The control component comprises the first tapered section formed opposite the first supporting surface and the second tapered section formed opposite the second supporting surface. At that the useful area of the first supporting surface is equal to the useful area of the first tapered section when the control component is in the first position. The useful area of the second supporting surface is equal to the useful area of the second tapered section when the control component is in the second position. Balancing of the control component is provided in that way. Versions of the device for fluid medium control are described.

EFFECT: control valve performs duties which are usually performed by two valves connected to each other.

25 cl, 12 dwg

FIELD: machine building.

SUBSTANCE: control device for control of fluid medium flow rate contains a valve body that determines an inlet hole, and outlet hole and a neck located between the inlet hole and the outlet hole, a control element located in the neck of the valve body and located so that it can be moved between the first position and the second position for control of fluid medium flow rate through the valve body, a mechanical assembly containing a valve seat and a retaining ring; at that, the valve seat is attached to the valve seat inside the neck, and the retaining ring is connected through thread to the valve seat, and a seal containing graphite material clamped between the valve body and the retaining ring and interacting with the valve body so that tight sealing is provided for fluid medium between the mechanism assembly and the valve body. The valve seat includes an annular mounting part and an upper annular part located opposite the neck relative to the annular mounting part; at that, annular mounting part is connected through thread to thread to the valve body and determines the first mounting surface provided with possibility of interaction with the control element when the control element is in the first position; at that, the upper annular part is connected through thread to the retaining ring.

EFFECT: improvement of valve characteristics.

41 cl, 12 dwg

FIELD: machine building.

SUBSTANCE: body of a three-way valve includes a neck specifying a cylindrical cavity of the neck. The valve body is provided with a flow diverting device that passes into the neck cavity. The flow diverting device interrupts any circulating fluid medium flow inside the neck cavity, thus improving the efficiency of fluid medium flow through the valve body. As per one version of the invention implementation, the flow diverting device can contain one or several ribs made as an integral part of the valve and located parallel to the central axis of the neck cavity.

EFFECT: higher reliability of the device.

23 cl, 6 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

FIELD: machine building.

SUBSTANCE: proposed valve 1 has inlet area 13 and first discharge area 14, and, at least, one second discharge area 15 to be intercommunicated by, at least, two plate valves 11, 12. Flow control device 21 is arranged upstream of first discharge area 14 and second plate valve second discharge area 15. It has feed area 22 and discharge area 23. In compliance with this invention fluid in said flow control device 21 is directed via several channels distributed in said device distributed and separated one from the other. Said channels feature scroll shape to swirl fluid flow toward second plate valve 12.

EFFECT: higher reliability.

18 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: expansion valve includes inlet hole, at least two outlet holes, each of which is intended for discharge of fluid medium contained at least partially in gaseous state. The first valve component includes at least two valve seats. The second valve component includes at least two gate elements. The latter are moved simultaneously towards valve seats and from them. Displacement device is intended for displacement of gate elements and valve seats. The second valve component and gate elements are connected so that mutual position of the first valve component and the second valve component determines the opening degree of each of the valves. The above opening degree is controlled synchronously, which allows maintaining the required distribution of the flow in outlet holes. Valve components include a part made in the form of disc and containing the above valve seats or gate elements on its surfaces. Valve seats have the shape of through holes in the disc forming the first valve component. Gate elements have the shape of projecting elements on the surface of the disc forming the second valve component located opposite the first valve component. Cooling system is described as well.

EFFECT: possibility of controlling the fluid distribution in two or more parallel flows is provided.

2 cl, 2 dwg

Check valve // 2463506

FIELD: machine building.

SUBSTANCE: check valve comprises body with connection branch pipes for main component, mainly, oil and dischargeable component, mainly, mix of oil and gas. Shut off element consists of fixed and moving parts interacting over common equidistance surface and is made up of, preferably, of seat with spring-loaded disc arranged in inner unit case. Said inner block represents a shaped solid of revolution, preferably, a cylinder, arranged inside valve body along dischargeable component line. Shutoff element lengthwise axis is located perpendicular to dischargeable element branch pipe axis. Chamber communicated via channels with valve body inner chamber is arranged above valve disc. Said channels are open upstream. Cover is fitted in valve body mating part to lock inner unit with shutoff element. Said inner unit is heat-isolated from valve body by nonmetallic ring seals. Note here that gas chamber is arranged between said inner unit and valve body. Inner unit case face opposite the cover accommodates tie rod, mainly, cylindrical. One end of said tie rod interacts with inner unit case while its opposite shaped end interacts with valve body cover. Valve body cover represents hollow cylinder with one closed end face to make closed gas chamber inside said cover, between cover end face and inner unit end face. Clearance is provided between cover thrust surface and inner unit face.

EFFECT: higher reliability.

2 dwg

FIELD: machine building.

SUBSTANCE: thermostatic tap (1) comprises a body (2) of the water mixer tap of tubular shape, a thermostatic element (3), which forms a pre-assembled complex inserted inside the body (2) of the tap, and facilities (6, 7) of shell fixation in the body (2) of the tap. The thermostatic element (3) comprises a hollow shell (4) of plastic material, where thermostatic facilities (5) are installed to adjust temperature of a medium (M) going out of an element and produced by means of mixing of an incoming cold medium (F) and incoming hot medium (C). Fixation facilities comprise a screw (7) at one side, including a rod (71) with helical thread and an expanded end head (72), and on the other side there is a rigid part (6). For simple and rigid fixation in the body (2) of the tap, the rigid part (6) is movably inserted between the body (2) of the tap and the shell (4) along the axis of displacement (Z-Z), the transverse longitudinal axis (X-X) of the body (2) of the tap and is kinematically joined with the shell (4) simultaneously in direction of the axis of the body (2) of the tap and rotation around this axis. The rigid part (6) is equipped with a hole with helical thread (63) with the centre along the axis of displacement, which opens to the surface (62B) of the rigid part facing the body (2) of the tap. The rigid part (6) is arranged as capable of interaction by means of screwing of a rod (71) with helical thread of the screw (7) for displacement of the rigid part (6) to adjacency to the surface of the support against the inner surface (2A) of the body (2) of the tap, when this screw is introduced outside the body (2) of the tap via a transverse hole (21), crossing the body (2) of the tap and smaller than the head of the screw (72). There is a method to make the specified water mixer tap.

EFFECT: simplified maintenance of a tap that does not require long and complicated adjustment and its simplified manufacturing.

10 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: proposed device comprises valve body with fluid channel. Control component arranged in said body to displace therein between first and second positions. Cap attached to said body extends into said channel to direct, at least, portion of fluid when aforesaid control component stays between said first and second positions. Ledge is made on said cap to extend, at least, partially into valve body. Said ledge features, in fact, parabolic cross-section.

EFFECT: perfected design.

20 cl, 6 dwg

Gas flow switch // 2255260

FIELD: multiple-way valves.

SUBSTANCE: gas flow switch has housing with inlet connecting part and first and second outlet connecting pipes. The housing is provided with seats for two valves. The second connecting pipe receives sealing, retaining ring, and control member connected with the common valve plunger. The plunger is secured inside the rod which passes through the diaphragm. The locking spring abuts against the one side of the diaphragm. Both of the valves are arranged from the other side of the diaphragm.

EFFECT: expanded functional capabilities.

1 cl, 4 dwg

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