CN107676519B - Axial-flow type water control regulating valve - Google Patents
Axial-flow type water control regulating valve Download PDFInfo
- Publication number
- CN107676519B CN107676519B CN201711046034.4A CN201711046034A CN107676519B CN 107676519 B CN107676519 B CN 107676519B CN 201711046034 A CN201711046034 A CN 201711046034A CN 107676519 B CN107676519 B CN 107676519B
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- valve
- regulating
- piston
- valve body
- adjusting
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 96
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000007789 sealing Methods 0.000 claims abstract description 48
- 210000004907 gland Anatomy 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
Abstract
The invention provides an axial-flow type water control regulating valve which comprises a valve body, a water inlet and a water outlet which are arranged at two ends of the valve body, a first valve seat which is arranged at the water outlet, a regulating valve body which is arranged in the valve body, a regulating needle valve which is arranged in the regulating valve body, a piston ring which is arranged on the regulating valve body and is in sealing fit with the first valve seat, and a piston which is arranged in a piston ring, wherein the piston and the piston ring form a piston cavity, a pressure guide pipe and a water inlet needle valve are arranged on the piston ring, the regulating needle valve divides the regulating valve body into a regulating outer cavity and a regulating inner cavity, the regulating needle valve can regulate the flow between the regulating outer cavity and the regulating inner cavity, the water inlet is communicated with the piston inner cavity through the water inlet needle valve, and the water outlet is communicated with the regulating outer cavity through the pressure guide pipe, and the regulating inner cavity is communicated with the piston inner cavity.
Description
Technical Field
The invention relates to the field of valves, in particular to an axial-flow type water control regulating valve.
Background
The hydraulic control valve is a valve which uses the pressure of pipeline medium as power to open and close and regulate. The current hydraulic control valve consists of a main valve, an attached pilot valve and the like. The pilot valve acts along with the change of the liquid level and the pressure of the medium, and can be singly used or used in combination due to various types of the pilot valve, so that the main valve can obtain the functions of singly and compositely adjusting the water level, the water pressure, the flow and the like.
The hydraulic control valve is divided into a diaphragm type and a piston type, the working principle is the same, the pressure difference between the upstream and the downstream is used as power, and the pilot valve is used for controlling, so that the diaphragm (piston) is hydraulically operated in a differential mode, and the hydraulic control valve is completely and automatically regulated by the hydraulic force, so that the valve clack of the main valve is completely opened or completely closed or is in a regulating state.
The existing hydraulic control valve has a complex structure and large volume, so that the use space is increased, and the miniaturization is not facilitated. The combined control of the additional pilot valve can result in a longer control stroke of the main valve, and the control is not direct and not sensitive enough. The biggest problem of the current hydraulic control valve is that cavitation occurs in devices in the valve after long-term use. Cavitation is the phenomenon that the rear end of a throttling device is rapidly reduced due to pressure under the throttling action of fluid, so that liquid is vaporized, and then strong impact is caused on the microscopic surface of the device in the process of annihilation of bubbles, so that noise, vibration and corrosion are generated. Therefore, the current hydraulic control valve has short service life and high cost.
In view of this, it is necessary to design an axial flow type water control regulating valve to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the technical problems that: an axial flow type water control regulating valve capable of improving control accuracy and controlling cavitation and vibration is provided.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an axial-flow type water accuse governing valve, includes the valve body, sets up water inlet and delivery port at the valve body both ends, installs at the first disk seat of delivery port, installs at the inside piston ring of valve body and install in the piston ring and with first disk seat sealing fit's piston, piston and piston ring constitute the piston inner chamber, axial-flow type water accuse governing valve is still including setting up at the inside governing valve body of valve body and setting up at the inside governing needle valve of governing valve body, the piston ring is installed on the governing valve body, install guide tube and needle valve that intakes on the piston ring, the governing needle valve divide into the governing valve body and adjusts outer chamber and regulation inner chamber, the regulation needle valve can be adjusted the regulation outer chamber with flow between the regulation inner chamber, the water inlet passes through needle valve intercommunication with the piston inner chamber of intaking, the delivery port passes through guide tube intercommunication with the regulation outer chamber, regulation inner chamber and piston inner chamber intercommunication.
Further, the regulating valve body is provided with a mounting channel for mounting the regulating needle valve, the regulating needle valve comprises a second valve seat, a sealing seat and a connecting pipe for connecting the valve body and the regulating valve body, the second valve seat is sequentially mounted in the mounting channel in a sealing mode, the regulating needle valve further comprises a regulating valve core matched with the second valve seat, a main body part matched with the sealing seat in a sealing mode and a regulating rod extending beyond the connecting pipe from the main body part.
Further, a partition plate is arranged between the installation channel and the adjusting outer cavity, the installation channel is provided with a horizontal through hole and a vertical through hole which are communicated with the partition plate and the adjusting valve body, and a communication hole which is communicated with the adjusting valve body, a step groove is arranged at the position of the sealing seat corresponding to the horizontal through hole, and the horizontal through hole and the step groove form an annular channel to be communicated with the adjusting outer cavity and the pressure guiding pipe; the adjusting valve core reciprocates along the direction of the vertical through hole; the adjusting inner cavity is formed by enclosing a sealing seat, a second valve seat and an adjusting valve core, and the communicating hole is communicated with the adjusting inner cavity and the piston inner cavity.
Further, the regulating valve core is in an inverted conical shape or an inverted truncated cone shape; an adjusting handle is arranged on the adjusting rod.
Further, the regulating valve body and the valve body are integrally formed and are hemispherical, and the piston ring is fixed on the regulating valve body in a sealing manner through a plurality of bolts.
Further, one end of the piston ring is provided with an assembling port for installing a piston, and the assembling port is abutted against the first valve seat; the other end of the piston ring is provided with a mounting hole, and the impulse pipe is inserted into the piston ring from the mounting hole and penetrates through the piston to extend to the water outlet; the side wall of the piston ring is provided with a plurality of opening and closing ports, and the opening and closing ports are close to the assembly ports.
Further, the piston is provided with an annular surface in sealing fit with the first valve seat, a groove opposite to the annular surface and a perforation penetrating through the piston, the groove and the piston ring form the inner cavity of the piston, and the impulse pipe penetrates through the perforation.
Further, install gland and cover and establish the rand in the gland outside and restriction first disk seat motion on the first disk seat, first disk seat forms the seal groove with the gland, install in the seal groove with piston seal cooperation second sealing washer, leave the clearance between seal groove and the second sealing washer.
Further, the water inlet needle valve comprises a conical part formed by extending an adjusting part and a self-adjusting part, the adjusting part is arranged on the valve body and penetrates out of the valve body, and the conical part is arranged on the piston ring and is inserted into the piston ring.
Further, a spring positioned in the inner cavity of the piston is sleeved on the pressure guide pipe.
Compared with the prior art, the invention has at least the following advantages:
1. the axial-flow type piston structure has good medium flow state, and the acting force of the medium can not directly act on the piston, so that the problems of cavitation, vibration and the like are avoided in the decompression process;
2. the whole regulating valve can be controlled by regulating a small regulating needle valve, the control precision is realized by the flow velocity of pressure medium in the inner cavity of the piston, the hydraulic control method is a hydraulic control method, the opening degree, the opening and closing time and the like can be precisely controlled, the driving of a large valve is not needed, the control mode of the regulating needle valve can be selected in many ways, and the wireless intelligent control can be well realized.
Drawings
Fig. 1 is a schematic structural view of an axial flow type water control regulating valve of the present invention.
Fig. 2 is a partially enlarged view of a portion a of the axial flow type water control valve shown in fig. 1.
Fig. 3 is a partially enlarged view of a portion B of the axial flow type water control valve shown in fig. 1.
Detailed Description
The structure and summary of the axial flow water control regulating valve of the present invention are described below with reference to fig. 1 to 3.
An axial-flow type water control regulating valve comprises a valve body 1, a water inlet 2 and a water outlet 3 which are arranged at two ends of the valve body 1, a first valve seat 4 which is arranged at the water outlet 3, a regulating valve body 5 which is arranged inside the valve body 1 and is close to the water inlet, a regulating needle valve 50 which is arranged in the regulating valve body 5, a piston ring 6 which is arranged on the regulating valve body 5, and a piston 7 which is arranged in the piston ring 6 and is in sealing fit with the first valve seat 4.
And the valve body 1 is provided with pressure measuring holes 11 at positions corresponding to the water inlet 2 and the water outlet 3. And a pressure measuring instrument is arranged on the pressure measuring hole 11.
The first valve seat 4 is mounted on the water outlet 3 of the valve body 1 in a sealing manner. The first valve seat 4 is provided with a gland 41 and a collar 42 sleeved outside the gland 41 and limiting the movement of the first valve seat 4. The gland 41 is fixed to the first valve seat 4 by means of a number of bolts. An annular clamping groove is concavely formed in the inner side of the water outlet 3. The collar 42 is partially located in the slot. The portion of the collar 42 protruding from the catch limits movement of the first valve seat 4 side. The other side of the first valve seat 4 is limited in movement by a piston ring 6. The first valve seat 4 and the gland 41 are combined to form a sealing groove 43. A second sealing ring 44 is arranged in the sealing groove 43 and is in sealing fit with the piston 7. And a gap is reserved between the sealing groove 43 and the second sealing ring 44 to form a self-sealing structure, so that the sealing performance is improved. The pressure measuring hole 11 sequentially penetrates through the first valve seat 4 and the gland 41, so that the pressure measuring hole 11 can be communicated with the interior of the valve body 1.
The regulating valve body 5 and the valve body 1 are integrally formed, and a plurality of supporting ribs (not shown) are arranged between the regulating valve body and the valve body. The regulating valve body 5 is hemispherical and is arranged near the water inlet 2. The regulating valve body comprises a vertical surface and an arc surface. The circular arc of the regulating valve body 5 faces the water inlet 2, and the regulating valve body 5 has small volume and can reduce water loss. The regulating valve body 5 is internally provided with a mounting channel for mounting the regulating needle valve 50. The regulating needle valve 50 divides the regulating valve body 5 into a regulating inner chamber 51 and a regulating outer chamber 52. A partition 53 is provided between the mounting channel and the adjusting outer chamber 52. The cross section of the partition 53 is L-shaped. The mounting passage 51 is provided with a horizontal through hole 54 penetrating the partition plate 53 and the vertical surface of the regulator valve body 5, a vertical through hole 55 penetrating the partition plate 53 and the circular arc surface of the regulator valve body 5, and a communication hole 56 penetrating the vertical surface of the regulator valve body.
The regulator needle valve 50 includes a second valve seat 500, a sealing seat 501, and a connection pipe 502 connecting the valve body 1 and the regulator valve body 5, which are sealingly installed in the installation passage in this order. The second valve seat 500, the sealing seat 501 and the connecting pipe 502 are integrally connected with each other in an abutting manner. The regulator needle valve 50 further includes a regulator valve core 503 engaged with the second valve seat 500, a body portion 504 sealingly engaged with the seal seat 501, a regulator stem 505 extending from the body portion 504 beyond the connection pipe 502, and a regulator handle 506 mounted on the regulator stem 505.
The second valve seat 500 is annular and has an adjustment port for mounting the adjustment valve element 503. The second valve seat 500 is disposed below the mounting channel and on a horizontal shoulder of the diaphragm 53. The sealing seat 501 is provided with a stepped groove 5010 corresponding to the horizontal through hole 54. The horizontal through hole 54 and the stepped groove 5010 form an annular passage. The sealing seat 501 is in sealing fit with the upper and lower ends of the horizontal through hole 54. One end of the connecting pipe 502 is inserted into the vertical through hole 55 of the installation channel; the other end passes through the valve body 1 and is communicated with the outside of the valve body 1. The other end of the connecting pipe 502 is convexly provided with a fixing ring 507 which is fixedly matched with the valve body 1.
The regulating valve core 503 is in an inverted conical shape or an inverted truncated cone shape, and is inserted into the regulating port of the second valve seat 500 to be in clearance fit. The regulating spool 503 reciprocates in the direction of the vertical through hole. As the length of the regulator spool 503 into the regulator port increases, the flow rates of the regulator inner and outer chambers 51, 52 decrease. The regulator spool 503 is also located in the regulator cavity 51 and does not obstruct the flow of media from the regulator cavity 51. The body portion 504 is cylindrical and is located in the seal holder 501 and is capable of sliding in a sealing manner with respect to the seal holder 501. The adjusting rod 505 is cylindrical, is located in the connecting pipe 502, passes out of the connecting pipe 502 and is assembled and matched with the adjusting handle 506. The adjusting handle 506 is rotated, so that the adjusting rod 505, the main body 504 and the adjusting valve core 503 are driven to reciprocate in the vertical direction.
The regulating cavity 51 is enclosed by a sealing seat 501, a second valve seat 500 and a regulating valve core 503. The adjusting outer cavity 52 is surrounded by an arc surface of the adjusting valve body 5 and a partition plate 53. The adjusting inner cavity 51 and the adjusting outer cavity 52 are always communicated.
The piston ring 6 is fixed on the vertical surface of the regulating valve body 5 in a sealing way through a plurality of bolts. The piston ring 6 is cylindrical. One end of the piston ring 6 is provided with an assembly opening 60 for mounting the piston 7. The fitting opening 60 rests against the first valve seat 4. The other end of the piston ring 6 is provided with a mounting hole 61 communicating with the horizontal through hole 54 of the regulator valve body 5 and a connecting hole 62 communicating with the communication hole 56 of the pressure release body 5. The side wall of the piston ring 6 is provided with a plurality of opening and closing ports 63. The opening and closing port 63 is close to the assembly port 60. The piston ring 6 is provided with a pressure guide pipe 64 and a water inlet needle valve 65. The impulse pipe 64 is inserted from the mounting hole 61 into the piston ring 6 and extends through the piston 7 to the water outlet 3. The horizontal through hole 54 is communicated with the adjusting outer cavity 52 and the pressure guiding pipe 64, namely the water outlet 3 is communicated with the adjusting outer cavity 52 through the pressure guiding pipe 64. The water inlet needle valve 65 includes an adjusting portion 651 and a tapered portion 652 formed by extending the adjusting portion 651. The adjusting portion 651 is mounted on the valve body 1 and penetrates the valve body 1. An adjusting nut is mounted on the adjusting portion 651. The water inflow amount of the water inflow needle valve 65 is adjusted by an adjusting nut. The tapered portion 652 is mounted on the piston ring 6 and is inserted into the piston ring 6.
The piston 7 is cylindrical and has an annular surface 70 at one end for sealing engagement with the first valve seat 4. The annular surface 70 may be formed by rounding or chamfering one end of the piston 7. The invention is formed by providing an annular step at one end of the piston 7. The other end of the piston 7 is provided with a recess 71. The other end of the piston 7 and the piston ring 6 form a piston cavity 72. I.e. the recess 71 forms with the piston ring 6 the piston inner chamber 72. The water inlet 2 is communicated with the piston inner cavity 72 through a water inlet needle valve 65. The adjustment chamber 51 and the piston chamber 72 communicate with each other through the communication hole 56 and the connection hole 62. The pressure in the piston cavity 72 is formed by mixing the pressure in the water inlet 2 and the pressure in the water outlet. The piston 7 is further provided with a through hole 73 penetrating along the axial direction of the piston 7. The impulse pipe 64 passes through the perforations 73. The impulse tube 64 is sleeved with a spring 74 positioned within the piston bore 72. The mounting hole 61 of the piston ring 6 protrudes inward to form a first spring seat 66. One end of the spring 74 is positioned within the first spring seat 66. The recess 71 of the piston 7 is further provided with a second spring seat 75. The other end of the spring 74 is located within a second spring seat 75. The spring 74 can ensure that the piston 7 is in sealing fit with the first valve seat 4 when the water inlet 2 and the water outlet 3 are not pressurized, and the valve is closed.
The working principle of the invention is as follows:
as shown in fig. 1, the medium flows, the upstream pressure P1 and the downstream pressure P2 delimit at the region between the piston 7 and the first valve seat 4, the upstream pressure P1 slowly entering the piston interior 72 via the inlet needle 65, and the downstream pressure P2 entering the regulating outer chamber 52 via the pressure line 64. The opening degree of the regulating valve core 503 is controlled by the regulating handle 506, so that the flow rate at the regulating valve core 503 and the flow rate at the water inlet needle valve 65 are balanced, the pressure P3 of the piston inner cavity 72 can be controlled, whether the piston 7 is opened or closed or not and what opening degree is unchanged can be realized by controlling the value of P3, that is to say, the opening degree of the needle valve 50 can be regulated: 1. when the water pressure needs to be reduced, the opening degree of the adjusting valve core 503 can be reduced by operating the adjusting handle 506, at this time, the water inlet flow rate of the P1 of the piston inner cavity 72 is kept unchanged through the water inlet needle valve 65, but the water outlet flow rate of the P2 of the piston inner cavity 72 is reduced, so that the P3 is raised, and the valve performs the closing action; when the system pressure drops to the desired value, the position of the regulator spool 503 is reset to an equilibrium position that ensures that P3 and P1 and P2 are balanced against the thrust of the piston, the valve is at this opening and the piston is in a dynamic equilibrium state.
In summary, the above is only a preferred embodiment of the present invention, and should not be used to limit the scope of the present invention. All simple and equivalent changes and modifications made in accordance with the claims and the specification should be considered as falling within the scope of the present invention.
Claims (10)
1. The utility model provides an axial-flow water accuse governing valve, includes the valve body, sets up water inlet and delivery port at the valve body both ends, installs at the first disk seat of delivery port, installs at the inside piston ring of valve body and installs in the piston ring and with first disk seat sealing fit's piston, piston and piston ring constitute piston inner chamber, its characterized in that: the axial-flow type water control regulating valve further comprises a regulating valve body arranged in the valve body and a regulating needle valve arranged in the regulating valve body, the piston ring is arranged on the regulating valve body, a pressure guide pipe and a water inlet needle valve are arranged on the piston ring, the regulating needle valve divides the regulating valve body into a regulating outer cavity and a regulating inner cavity, the regulating needle valve can regulate the flow between the regulating outer cavity and the regulating inner cavity, the water inlet is communicated with the inner cavity of the piston through the water inlet needle valve, the water outlet is communicated with the regulating outer cavity through the pressure guide pipe, and the regulating inner cavity is communicated with the inner cavity of the piston.
2. The axial flow water control regulating valve according to claim 1, wherein: the regulating valve body is provided with a mounting channel for mounting the regulating needle valve, the regulating needle valve comprises a second valve seat, a sealing seat and a connecting pipe for connecting the valve body and the regulating valve body, the second valve seat is sequentially mounted in the mounting channel in a sealing mode, the regulating valve further comprises a regulating valve core matched with the second valve seat, a main body part matched with the sealing seat in a sealing mode and a regulating rod extending beyond the connecting pipe from the main body part.
3. The axial flow water control regulating valve according to claim 2, wherein: a partition plate is arranged between the mounting channel and the adjusting outer cavity, the mounting channel is provided with a horizontal through hole and a vertical through hole which are communicated with the partition plate and the adjusting valve body, and a communication hole which is communicated with the adjusting valve body, a step groove is arranged at the position of the sealing seat corresponding to the horizontal through hole, and the horizontal through hole and the step groove form an annular channel to be communicated with the adjusting outer cavity and the pressure guiding pipe; the adjusting valve core reciprocates along the direction of the vertical through hole; the adjusting inner cavity is formed by enclosing a sealing seat, a second valve seat and an adjusting valve core, and the communicating hole is communicated with the adjusting inner cavity and the piston inner cavity.
4. The axial flow water control regulating valve according to claim 2, wherein: the regulating valve core is in an inverted conical shape or an inverted truncated cone shape; an adjusting handle is arranged on the adjusting rod.
5. The axial flow water control regulating valve according to claim 1, wherein: the adjusting valve body and the valve body are integrally formed and are hemispherical, and the piston ring is fixed on the adjusting valve body in a sealing manner through a plurality of bolts.
6. The axial flow water control regulating valve according to claim 1, wherein: one end of the piston ring is provided with an assembly port for installing a piston, and the assembly port is abutted against the first valve seat; the other end of the piston ring is provided with a mounting hole, and the impulse pipe is inserted into the piston ring from the mounting hole and penetrates through the piston to extend to the water outlet; the side wall of the piston ring is provided with a plurality of opening and closing ports, and the opening and closing ports are close to the assembly ports.
7. The axial flow water control regulating valve according to claim 1, wherein: the piston is provided with an annular surface in sealing fit with the first valve seat, a groove opposite to the annular surface and a perforation penetrating through the piston, the groove and the piston ring form an inner cavity of the piston, and the impulse pipe penetrates through the perforation.
8. The axial flow water control regulating valve according to claim 1, wherein: the sealing device is characterized in that a gland and a clamping ring which is sleeved on the outer side of the gland and limits the movement of the first valve seat are arranged on the first valve seat, the first valve seat and the gland form a sealing groove, a second sealing ring which is matched with the piston in a sealing mode is arranged in the sealing groove, and a gap is reserved between the sealing groove and the second sealing ring.
9. The axial flow water control regulating valve according to claim 1, wherein: the water inlet needle valve comprises an adjusting part and a conical part formed by extending the adjusting part, the adjusting part is arranged on the valve body and penetrates out of the valve body, and the conical part is arranged on the piston ring and is inserted into the piston ring.
10. The axial flow water control regulating valve according to claim 1, wherein: and a spring positioned in the inner cavity of the piston is sleeved on the pressure guide pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046034.4A CN107676519B (en) | 2017-10-31 | 2017-10-31 | Axial-flow type water control regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046034.4A CN107676519B (en) | 2017-10-31 | 2017-10-31 | Axial-flow type water control regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107676519A CN107676519A (en) | 2018-02-09 |
| CN107676519B true CN107676519B (en) | 2023-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711046034.4A Active CN107676519B (en) | 2017-10-31 | 2017-10-31 | Axial-flow type water control regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676519B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154112A (en) * | 2021-04-27 | 2021-07-23 | 博纳斯威阀门股份有限公司 | Hydraulic self-generating intelligent regulating valve |
| CN114484026B (en) * | 2022-04-06 | 2022-07-01 | 艾肯（江苏）工业技术有限公司 | Pilot diaphragm type pressure reducing valve with adjustable pressure |
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|---|---|---|---|---|
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| CN103244746A (en) * | 2013-05-02 | 2013-08-14 | 伯特利阀门集团有限公司 | Self-power adjustable valve slow-closing device |
| CN105570525A (en) * | 2014-10-31 | 2016-05-11 | 费希尔控制产品国际有限公司 | Flow control valve having a motion conversion device |
| CN205780956U (en) * | 2016-07-05 | 2016-12-07 | 浙江精嘉阀门有限公司 | Piston fluid regulation valve |
| CN207514338U (en) * | 2017-10-31 | 2018-06-19 | 安徽红星阀门有限公司 | A kind of axial-flow type water control regulating valve |
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| Publication number | Publication date |
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| CN107676519A (en) | 2018-02-09 |
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