Liquid flow rate controller

FIELD: machine building.

SUBSTANCE: liquid flow controller comprises a cylindrical body connected to the pressure pipe. The internal cavity of the body is divided by a partition, provided with a nozzle at the inlet and outlet parts. Located opposite the nozzle is a shut-off throttling element connected to the electric drive. The electric drive is equipped with the output electrical wires with terminal conductive contacts. The controller contains a camera fitted with a bearing and the turbine. The camera is located at the entrance of the housing with a gap relative to its walls. The turbine is equipped with a shaft, an impeller and an approach channel in a shape of the specified gap. Located in the camera is an anchor escapement mechanism with a toothed wheel fixed to the turbine shaft and a spring-loaded follower associated with the electric drive. The camera is fixed on the body without breaking the integrity of its walls. The shaft is installed in the housing on the bearing. Through said bearing the shaft crosses right through the wall of the chamber. A locking element is designed as a drive fixed to a shaft.

EFFECT: high reliability and smaller size of the liquid flow controller.

7 cl, 8 dwg

 

The invention relates to regulators of fluid flow and can be used in the oil industry in the system of reservoir pressure maintenance for aging-defined technology modes flooding.

A well-known regulator of fluid flow (RF Patent No. 2001111739/06, F16K 31/00, published. 27.06.2003,), comprising a housing with inlet and outlet nozzles and movable spring-loaded regulator, which divides the internal cavity of the housing into three parts, communicated to each other via a series set two chokes (sets the value of the flow rate and automatically controlled). Specifies the throttle is placed in the fixed part of the regulator, i.e. in the housing, and configured to change its bore during operation of the device. Spring-loaded regulating body in the form of the membrane actuator, diaphragm whose periphery is clamped by the flanges of the body, and in the centre freely planted on the stem, forming his plate check valve.

The disadvantages of the known regulator are unreliable and cumbersome design.

Used in the proposed analog numerous hydraulic and movable mechanical elements, such as springs, diaphragms, valve, etc. exposed to the flow of transported through the pipeline fluid. This reduces exactly what th regulation and increases the probability of failure of these elements corrosive-abrasive environment.

Known chosen as the prototype of the flow regulator fluid containing a cylindrical housing with two end connecting flanges at opposite ends and mounted inside inclined wall with a calibrated nozzle (Patent RF №2303807, G05D 7/01, published. 27.07.2007,). Through the flanges of the casing cut into the discharge pipe so that supplied by the injector septum divides the housing on the input and output parts. In the output part of the body in its wall opposite the nozzle has a through hole, in which, with the possibility of linear movement has a retractable stock. One end of the latter is connected to a throttling gate valve element, and the other is supplied with electric wires reverse linear drive, which is located outside the housing. Inside the housing concentric with the rod installed bellows seal, hermetically United with the opposite ends respectively with the locking element and the housing wall. The locking element has end a spherical shape and is located opposite the nozzle from the outlet part of the body.

Regulation of the flow rate flowing through the jet of liquid is produced by the drive by moving the locking element relative to the nozzle.

The disadvantages of the known regulator are replaced shall agnosti and bulky device.

The precariousness of the design due to the fact that the bellows additionally performs the function of transforming the body of the volumetric pump, the walls of which are experiencing the same extreme force that counteracts changes in the internal and external pressure thick wall of the housing. Increasing the wall thickness of the bellows and the resistance provided by them to the moving rod, leads to unreasonable increase the power and size of the drive. In addition, the presence of the shut-off element in the path of the jet with abrasive inclusions, which breaks at high speed from the nozzle, causes accelerated wear of the locking element.

The aim of the invention is to increase the reliability and decrease the size of the liquid flow regulator.

This goal is achieved by the fact that the liquid flow regulator contains connected with a pressure pipe, a cylindrical housing, an internal cavity which is divided equipped with a nozzle partition on the input and output side, opposite the nozzle is connected with electric gates closing element, the actuator is provided with a lead electrical wires with integral conductive contacts. This additionally contains provided with a bearing chamber, which is located in the entrance of the building is with a gap relative to its walls, the turbine is equipped with the shaft, the impeller and the intake channel in the form specified gap, located in the chamber escapement mounted on the turbine shaft gear wheel and with the associated with electric spring-loaded rocker, a camera fixed to the body without breaching its walls, a shaft mounted in the housing on the bearing and through the latter crosses through the wall of the chamber, the locking element is designed in the form attached to the shaft drive. The drive has the form of an electromagnet, the coil and the electromagnet core is located outside the internal cavity of the chamber and the anchor is inside the chamber and connected to the rocker. The drive has the appearance of an electric heater thermal element from an alloy with shape memory effect, for example, from nitinol, the sensing element is located in the internal cavity of the chamber and connected with the lever arm, at the same time, or electric heater is located outside the internal cavity of the chamber, and the walls of the latter, at least in the zone of thermal influence of the electric heater is made of heat-conductive material, or a temperature sensitive element connected to the camera and the rocker through electroisolation, installed inside the insulating screen, for example, fluoroplastic tubing and connections is an with the corresponding contacts through the lead wires and the conductive pin, immured in insulating caps that are sealed in the walls of the chamber. Inside the chamber contains electroconductive lubricating fluid. The locking element is in terms of a circular shape, and facing the nozzle surface of the locking element as the rotation of the latter is located at a different distance from the facing to a surface of the nozzle. The locking element has such a shape that converts one to the other surface of the locking element and the nozzle plane, upon rotation of the locking element in its edges are located at different distances from the nozzle. The locking element has such a shape that as the rotation changes the distance from the nozzle to the edges, and faces the nozzle surface of the locking element.

1 schematically shows the flow regulator fluid actuator in the form of an electromagnet. Figure 2 schematically shows the anchoring mechanism in figure 1. Figure 3 schematically depicts the liquid flow regulator with electric actuator in the form of a temperature-sensitive element with shape memory effect with indirect heating. Figure 4 schematically shows the escapement figure 3. Figure 5 schematically depicts the liquid flow regulator with electric actuator in the form of a temperature-sensitive element with shape memory effect with direct heating by passing che is ez element of the electric current. Figure 6 schematically shows the escapement figure 5. 7 schematically shows a locking element in the form of a disk figure 3. On Fig schematically shows the location of the camera inside the case.

Figure 1-7: pressure pipe 1; a cylindrical casing 2; jet - 3; partition - 4; bearing - 5; camera - 6; the shaft 7; turbine - 8; wheel - 9; blade - 10; supply channel 11; the tooth - 12; anchor wheel - 13; anchor mechanism 14; a tooth - 15; tooth - 16; bearing 17; anchor rocker - 18; pusher - 19; spring - 20; lever - 21; anchor - 22; an electromagnet - 23; core - 24; winding - 25; lead electric wire - 26; conductive contact 27; closing element in the form of a disc 28; anchor rocker - 29; escapement - 30; spring - 31; pusher - 32; spiral sensing element from an alloy with shape memory effect - 33; a tubular casing 34; heater - 35; closing element in the form of a disk - 36; insulating tube 37; insulators - 38; dielectric plug - 39; a conductive pin - 40; the locking element in the form of disc 41.

The flow regulator fluid contains installed on the delivery pipe 1 case 2 divided equipped with a nozzle 3 by a partition 4 on the input and output parts (Fig.1-7). Inside the housing 2 with a gap relative to its walls provided with a fixed bearing 5 camera 6. In the bearing 5 set the Yong shaft 7 of the turbine 8, containing also the wheel 9 with the blades 10 and having a form specified supply gap 11. On the shaft 7 is fixed provided with teeth 12 of the wheel 13 of the anchor mechanism 14.

As presented in figures 1 to 3 embodiment, the teeth 12 are alternately periodically connected with the teeth 15, 16 pivotally mounted in the chamber 6 on the bearing 17 of the anchor beam 18. The latter pivotally connected with the plunger 19 is fixed in the chamber 6 by the spring 20 and end pivotally mounted in the chamber 6 of the lever 21, which is fixed to the anchor 22 of the electromagnet 23. While the core 24 and the coil 25 of the latter is located opposite the armature 22 on the outer side of the chamber 6, with from armature 22 of its walls, and through respective lead wires 26, the coil 25 of the electromagnet 23 is connected with their conductive terminal contacts 27. Opposite the nozzle 3 on the shaft 7 is fixed throttling locking element in the form of a disk 28 facing the nozzle 3, the surface of which is in process of rotation is located at a different distance from addressed to her flat surface of the nozzle 3.

As presented in figure 4, 5 embodiment, the teeth 12 are alternately periodically connected with the teeth 15, 16 mounted in the chamber 6 on the bearing 17 of the anchor arm 29 of the anchor mechanism 30. The rocker 29 is installed in the chamber 6 on the bearing 17, pivotally connected with the arrangement which Noah in the chamber 6 by a spring 31 and a pusher 32 is connected with a spiral heat-sensitive element 33, made of alloy with shape memory effect, for example, from nitinol. The shape memory element 33 is expressed in the shortening due to heating and the implementation of its austenitic transformation. When cooled to the martensitic state of the element 33 extends under the action of the spring 31. The element 33 is located in the chamber 6 inside the tubular housing 34 in the zone of thermal influence of the electric heater 35, which is mounted on the outside of the chamber 6, provided with a lead electrical wires 26 contacts 27 and hermetically separated from the internal cavity of the chamber 6 of her tight heat-conducting wall. Opposite the nozzle 3 on the shaft 7 is fixed throttling locking element in the form of a disk 36 facing the nozzle 3, the surface of which is plane-parallel converted to a surface of the nozzle 3. Moreover, as the rotation of the disk 36 in its edges are located at different distances from the nozzle 3 (figure 5).

Presented at Fig.6, 7 embodiment, the teeth 12 are alternately periodically connected with the teeth 15, 16 anchor arm 29 mounted in the chamber 6 on the bearing 17. The rocker arm 29 pivotally connected with located in the chamber 6 by a spring 31 and spiral heat-sensitive element 33 made of an alloy with shape memory effect, for example, from nitinol. The element 33 is located in the chamber 6 inside the dielectric, for example, f is anaplastology tube 37 and is connected to the wall of the chamber 6 and the arm 29 by means of respective electroisolation 38. The opposite ends of the element 33 are connected with the corresponding contacts 27 through the respective lead electrical wires 26 and embedded in insulating plugs 39 conductive pins 40. Stub 39 is hermetically secured in the walls of the chamber 6. Opposite the nozzle 3 on the shaft 7 is fixed throttling locking element in the form of a disk 41, the shape of which is such that as the rotation changes the distance from the nozzle 3 to the edges, and faces the nozzle 3 of the surface of the disc 41.

The control flow works as follows. The nozzle 3 is always more or less open, so that when fluid flow in the pipe 1 in the cart 11 is always flows the fluid in the interaction with the blades 10 create a torque on the shaft 7. However, the wheel 13 is now the tooth 15 (2, 4, 6) until the rotation of the respective rocker arm 18 (Fig 1, 2), 29 (Fig.3-6).

If necessary, change the flow rate flowing through the nozzle 3 of the liquid is shown in figure 1, 2 flow regulator, through the winding 25 for a short time electric current is passed. In this first electromagnet 23 is activated and the armature 22 is attracted to the core 24, stretching the spring 20 and the turning arm 18, so that the tooth 15 disengages from the corresponding tooth 12, is turning wheel 13 to until memory is 16 will not hit a jam on his movement. After that, the solenoid 23 is turned off and the spring 20 moves the anchor 22 in a clockwise direction away from the core 24, moving the rocker arm 18 to its original position, whereupon the tooth 16 disengages from the corresponding tooth 12, is turning wheel 13 until such time as the tooth 15 will not hit a jam on his movement. In the process described reciprocating movement of the rocker arm 18, contributing two-stage movement of the wheel 13 on the stroke of anchor mechanism 14, a corresponding two-stage movement of the disk 28 relative to the nozzle 3, thereby changing the gap between the nozzle 3 and the disk 28, and hence varies the flow rate flowing through the nozzle 3 of the liquid. If necessary, re-switching of the flow regulator again for a short time to turn on / off the electromagnet 23.

If necessary, change the flow rate flowing through the nozzle 3 of the liquid is shown in figure 3, 4 flow regulator for a short time include the electric heater 35. However after turning on the electric heater 35 under its action is heating element 33, and after switching off the heater 35 to the cooling element 33 in the liquid chamber 6. When the heating element 33 is experiencing austenitic transformation and coracias, RA does the GTC on the rotation of the rocker arm 29 and the cocked spring 31. When the cooling element 33 undergoes martensitic transformation and stretched reversal of the swing arm 29 by a spring 31. This reciprocating movement of the rocker arm 29 provides a two-step movement of the wheel 13 on the stroke of anchor mechanism 14, which corresponds to a two-stage movement of the disk 36 relative to the nozzle 3, thereby changing the gap between the nozzle 3 and the edge of the disc 36, and hence varies the flow rate flowing through the nozzle 3 liquid (Fig.7). If necessary, re-switching of the flow regulator, again for a short time to turn on / off the electric heater 35.

If necessary, change the flow rate flowing through the nozzle 3 of the liquid is shown on figure 5, 6 flow regulator for a short time passed through the element 33 electric current. In this first element 33 is heated and then cooled in the liquid chamber 6. When the heating element 33 is experiencing austenitic transformation and coracias, doing the work on the rotation of the rocker arm 29 and the cocked spring 31. When the cooling element 33 undergoes martensitic transformation and stretched reversal of the swing arm 29 by a spring 31. This reciprocating movement of the rocker arm 29 provides dvukhstupenchatoe wheel 13 on the stroke of anchor mechanism 14, which corresponds to a two-stage movement of the disk 41 relative to the nozzle 3, thereby changing the gap between the nozzle 3 and the disk 41, and hence varies the flow rate flowing through the nozzle 3 of the liquid. If necessary, re-switching regulator flow through the element 33 re momentary electric current is passed.

Switch presents regulator is provided a small-sized electric motor, which is similar to the action of the finger on the trigger powerful mechanism. In this case, rotation of the disk 28, 36, 41 relative to the nozzle 3 is made without external actuators, fluid flow in the pipeline.

The disks 28, 36, 41 are side flow, which prevents them from intense destruction coming out of the jets 3 jet with abrasive inclusions observed when installing data locking elements on the opposite side of the partition 4.

Contained in the chamber 6 prevents the penetration of liquid into the chamber 6 of the pipeline fluid, which helps to prevent overflows through the bearing 5 and contributes to the empowerment of the chamber 6 by the function of the crankcase is filled with pure water, mineral or silicone oil. This allows to extend the resource in chamber 6 parts to reduce friction in consisting of h is x mechanisms and use in the manufacture of inexpensive materials. As a result, the influence of a stream of abrasive inclusions subject only to the outside of the chamber 6, which does not require high precision machining massive structural elements, increase reliability, which is achieved by the use of wear-resistant, for example, ceramic or composite materials.

In order to improve the tightness of the bearing 5 is expedient to equip the seal, such as PTFE washers.

The pins 40 in the plugs 39 in principle similar to the conductive contacts in ceramic packages spark ignition vehicles.

To reduce friction between the teeth 12 and the teeth 15, 16, it is advisable to complement their bearings in the form of a metallic sleeves.

Before using the controller, it is advisable to carry out its calibration to determine the flow rate at different pressure drops for each fixed position of wheel 13 relative to the rocker arm 14, 30. In the future it will allow you to specify the required parameters on the counter switching controller.

1. The flow regulator fluid containing connected with a pressure pipe, a cylindrical housing, an internal cavity which is divided equipped with a nozzle partition on the input and output side, opposite the nozzle is connected with electric chokes the respective closing element, the actuator is provided with a lead electrical wires with integral conductive contacts, characterized in that it further contains provided with a bearing chamber, which is located in the front part of the housing with a gap relative to its walls, turbine, equipped with a shaft, the impeller and Podvolochisk channel as specified gap, located in the chamber escapement mounted on the turbine shaft gear wheel and with the associated with electric spring-loaded rocker, a camera fixed to the body without breaching its walls, a shaft mounted in the housing on the bearing and through the latter crosses through the wall of the chamber, the locking element is designed in the form attached to the shaft of the drive.

2. the liquid flow regulator according to claim 1, characterized in that the actuator takes the form of an electromagnet, the coil and the electromagnet core is located outside the internal cavity of the chamber and the anchor is inside the chamber and connected to the rocker.

3. the liquid flow regulator according to claim 1, characterized in that the actuator is of the type equipped with an electric heater thermal element from an alloy with shape memory effect, such as nitinol, the sensing element is located in the internal cavity of the chamber and connected with the lever arm, with either electric is a mini heater is located outside the internal cavity of the chamber, and the walls of the latter, at least in the zone of thermal influence of the electric heater is made of heat-conductive material, or a temperature sensitive element connected to the camera and the rocker through electroisolation, installed inside the insulating screen, for example, PTFE tube, and is connected with the corresponding contacts through pin electrical wires and conductive pins embedded in insulating caps that are sealed in the walls of the chamber.

4. the liquid flow regulator according to claim 1, characterized in that inside the chamber contains electroconductive lubricating fluid.

5. the liquid flow regulator according to claim 1, characterized in that the locking element is in terms of a circular shape, and facing the nozzle surface of the locking element as the rotation of the latter is located at a different distance from the facing to a surface of the nozzle.

6. the liquid flow regulator according to claim 1, characterized in that the locking element has such a shape that converts one to the other surface of the locking element and the nozzle plane, upon rotation of the locking element in its edges are located at different distances from the nozzle.

7. the liquid flow regulator according to claim 1, characterized in that the locking element has this form is, as the rotation changes the distance from the nozzle to the edges, and faces the nozzle surface of the locking element.



 

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Filling float valve // 2248490

FIELD: hydraulic power engineering.

SUBSTANCE: invention relates to hydraulic intake valves designed for metered delivery of liquid into reservoir to be filled. Proposed filling float valve contains housing with horizontal inlet branch pipe, side outlet branch pipe and cone-like seat inside housing and shut off member arranged opposite to seat. Axially movable rod of shutoff member is mechanically connected with float by means of two levers. Float is installed for vertical displacement in cup. Hole is made in cup bottom. Float valve installed in said hole communicates inner space of cup with filled reservoir when liquid is being drained from the latter. Cup is installed for vertical adjustment relative to housing. Float is installed for displacement relative to lever by means of adjusting screw. Bracket with axle is secured in screw head. Post with projections on side surface pointed to side of cup is secured on valve housing. Shaped projection is made on cup. Cup is fixed relative to post by means of said projection and fitted-in detachable clamp. Shutoff member is made in form of elastic diaphragm with thickening in zone of interaction with seat. Diaphragm is hermetically secured on housing over perimeter by means of bracket with union nut to form space in housing from side of seat. Said space communicates with side outlet branch pipe and, through seat, with horizontal inlet branch pipe. Rod is arranged in bracket. One of levers is made stepped. One of steps of said lever is secured on housing bracket by means of hinge joint. Fork-like hole is made in second step of said lever. Axle of bracket fitted in said hole is installed for displacement along hole. Axle is secured on head of adjusting bolt. Oblong hole is made in first step of lever connected with housing bracket. Axle is fitted in hole for displacement hole. Axle is cantilever mounted on end of second lever. Shaped axle is made on other end of said lever. Cylindrical sections of said axle are arranged in coaxial holes of housing bracket. Section in form of sector in cross section of axle is made between cylindrical sections on axle. U-shaped recess is made in middle part of rod. Said recess accommodates section of axle of second lever made in form of sector in cross section. Maximum width of said section of axle is from 0.8 to 0.85 of width of rod U-shaped recess. Wide side of sector is pointed to said of base of U-shaped recess engagement with sides of rod U shaped recess. Center of rotation of sector relative to rod is arranged at distance from rod axis equal to 0.27-0.29 of width of U0-shaped recess. Oblong and fork-like holes of stepped lever are parallel to each other. Distance between longitudinal axes of said holes is form 1.25 to 1.35 of hole width.

EFFECT: enlarged functional capabilities of filling float valve, improved reliability of hydraulic delivery valve, reduced noise in operation.

2 dwg

FIELD: hydraulic and pneumatic automatics, namely regulation of pressure of natural gas at outlet of gas distributing stations.

SUBSTANCE: regulator includes outer cylindrical housing, swirling chamber coaxial to said housing, designed for energy separation and having annular duct for drawing off hot flow and unit for controlling cross section of tangential nozzle inlet of compressed air in chamber. Said unit is arranged between diaphragm and swirling chamber. Recovering swirl ejector is arranged directly behind diaphragm in cold end part of chamber. Controlling unit, namely valve unit is in the form of hollow cylinder moved in lengthwise direction by means of rod of servo drive. At side of diaphragm cylinder engages with outlet cross section of nozzle inlet through lengthwise tangential ducts in wall of inlet collector embracing outer wall of said valve. Outlet of duct for drawing off hot flow to side of cold end of chamber and to side of housing of nozzle inlet is connected with collector for supplying hot flow to ejector. The last is in the form of tangential ducts in lateral wall of duct for drawing off cold flow. Behind mixing passage of ejector and lateral branch of mixed flow said servo drive of regulator is arranged.

EFFECT: enhanced operational reliability, enlarged functional possibilities of one-aggregate gas pressure regulator, improved accuracy of regulation due to effective self-heating and dynamic balance of shut-off pair.

3 cl, 3 dwg

Water-saving device // 2249140

FIELD: sanitary facilities.

SUBSTANCE: device is designed to control water tap by pressing on pedal in public service and industry. Proposed device contains pedal and water tap body with shutoff member. Shutoff member of tap and pedal are furnished with bellows, or diaphragm, or plunger chambers. Said chambers are filled with liquid and are interconnected by flexible pipeline.

EFFECT: improved reliability of device, reduced cost of manufacture.

2 cl, 3 dwg

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