CN210423865U

CN210423865U - Low pressure control integral type voltage regulator

Info

Publication number: CN210423865U
Application number: CN201921475086.8U
Authority: CN
Inventors: 邹文胜
Original assignee: Zigong Ti Well Valve Manufacturing Co Ltd
Current assignee: Zigong Ti Well Valve Manufacturing Co Ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-04-28
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses a low pressure control integral type voltage regulator belongs to voltage regulator technical field. A low-pressure monitoring integrated pressure regulator comprises a valve body, wherein the valve body comprises an input cavity and an output cavity, the top of the valve body is connected with a diaphragm body, the top of the diaphragm body is connected with a diaphragm cavity, the diaphragm cavity consists of an upper diaphragm cover and a lower diaphragm cover, the upper diaphragm cover and the lower diaphragm cover are connected through a first bolt, and the bottom of the valve body is connected with a monitoring diaphragm cover through a second bolt; the utility model discloses an adopt the design of direct action formula, carry out the modularized design with the breather valve with the discharge valve to make integral type structure with the main control valve, perfect operating mode singleness and the high shortcoming of repeated design rate of having solved traditional valve, when reducing design cost, promoted the rate of utilization of part, in the aspect of using and producing, possess stronger advantage.

Description

Low pressure control integral type voltage regulator

Technical Field

The utility model relates to a voltage regulator technical field especially relates to a low pressure control integral type voltage regulator.

Background

The pressure regulator is a device for regulating and controlling outlet pressure when flow and inlet pressure change, and can not only reduce higher inlet pressure to stable lower outlet pressure, but also provide a safety device to prevent overpressure and low pressure accidents when accident occurs, and plays an essential role when conveying fluid medium.

With the development of science and technology, the voltage regulators are more and more widely used and gradually increased in types, such as command type voltage regulators, self-operated voltage regulators and the like, but the voltage regulators are also wider in use, but are poorer in performance in the low-voltage field, and due to the fact that the working condition is single and the repeated design rate is higher, the design cost is increased invisibly; the existing pressure regulator in the aspect of low-pressure monitoring is complex in structure, mostly works in a mode of series connection and parallel connection in cooperation with a main working pressure regulator, is high in cost, different valve cores must be replaced and used under different working conditions, and pilot conditions cannot be occupied in the market, so that the integrated low-pressure monitoring pressure regulator capable of meeting different working conditions is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the deficiencies in the prior art and providing a low pressure control integral type voltage regulator.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a low-pressure monitoring integrated pressure regulator comprises a valve body, wherein the valve body comprises an input cavity and an output cavity, the top of the valve body is connected with a diaphragm body, the top of the diaphragm body is connected with a diaphragm cavity, the diaphragm cavity consists of an upper diaphragm cover and a lower diaphragm cover, the upper diaphragm cover and the lower diaphragm cover are connected through a first bolt, and the bottom of the valve body is connected with a monitoring diaphragm cover through a second bolt;

the upper diaphragm cover is fixedly connected with a vent valve and is integrally formed with the upper diaphragm cover, and the bottom of the lower diaphragm cover is connected with a discharge valve;

a first diaphragm is connected in the diaphragm cavity, a first valve rod is connected in the diaphragm cavity in a sliding mode, a first spring is connected in the diaphragm cavity, and one end of the first spring abuts against the first diaphragm;

a second diaphragm is connected in the diaphragm body, one end, far away from the diaphragm cavity, of the first valve rod penetrates through the first diaphragm and the second diaphragm and extends into the output cavity, a balance pressure device is connected in the output cavity, and the top of the balance pressure device is connected with the first valve rod;

the bottom of the balance pressure gauge is connected with a monitoring valve rod, one end, far away from the balance pressure gauge, of the monitoring valve rod is connected with a third diaphragm, and the third diaphragm is connected in a monitoring diaphragm cover.

Preferably, the top of the upper diaphragm cover is connected with a spring seat cover, the spring seat cover is in threaded connection with an adjusting screw rod, the adjusting screw rod extends to the inside of the upper diaphragm cover and is connected with a first support, and the other end of the first spring is abutted to the first support.

Preferably, sliding connection has the valve plate in the breather valve, the valve plate top is connected with the second spring, the breather valve top is connected with the breathing valve cap, the one end that the valve plate was kept away from to the second spring offsets with the breathing valve cap.

Preferably, a stop screw is connected to the first valve rod, a diaphragm supporting plate is connected to the stop screw, the diaphragm supporting plate is located at the top of the first diaphragm, a spring retainer is connected to the top of the stop screw, and the first spring abuts against the spring retainer.

Preferably, the spring retainer is internally threaded with a locknut, the top of the locknut is connected with a third spring, the top of the first valve rod is connected with an upper nut, and one end, far away from the locknut, of the third spring is abutted to the upper nut.

Preferably, the bottom of the lower diaphragm cover is connected with a guide pipe and is integrally formed with the lower diaphragm cover 302), the discharge valve is connected to the guide pipe through a locking nut, the discharge valve is connected to the inside of the discharge valve, a discharge bolt is connected to the inner thread of the discharge valve, a discharge nut is connected to the inside of the discharge valve, and the discharge bolt is in threaded connection with the discharge nut.

Preferably, a flange is connected in the lower diaphragm cover, the flange is connected with the diaphragm body through a first screw, and the diaphragm body is connected with the valve body through a second screw.

Preferably, a valve rod guide fixer is connected in the diaphragm body, a guide sleeve is connected in the valve rod guide fixer, and the first valve rod is slidably connected in the guide sleeve.

Preferably, a second support is connected to the diaphragm body, the second diaphragm is connected to the top of the second support, a third support is connected to the top of the second diaphragm, and the first valve rod is slidably connected to the second support and the third support.

Preferably, a valve port seat is connected in the valve body, and a groove matched with the valve port seat is formed in the balance pressure device.

Compared with the prior art, the utility model provides a low pressure control integral type voltage regulator possesses following beneficial effect:

1. the low-pressure monitoring integrated pressure regulator has the advantages that the inlet fluid is inserted into the input cavity end of the valve body, the output cavity end is connected with the output pipeline, the feedback fluid is introduced into the discharge valve from the output pipeline, the input cavity is filled with the fluid and flows into the output cavity through the valve port seat, the feedback fluid is further supplied to the discharge valve, the first diaphragm is lifted upwards, the diaphragm supporting plate is driven to move upwards, the third spring energy storage pulls the first valve rod upwards, the distance between the pressure balancing device and the valve port seat is reduced, the outlet pressure is reduced, the space in the upper diaphragm cover is reduced when the diaphragm supporting plate moves upwards, internal gas is compressed, the vent valve connected to the upper diaphragm cover can effectively discharge the gas, specifically, when the pressure in the upper diaphragm cover is increased, the valve plate is pushed to move upwards, and the breather valve cap is communicated, the valve plate is pressed downwards to be closed when the pressure is smaller than the elastic potential energy of the second spring, so that the upper diaphragm cover is internally sealed; when the pressure falls back, the first diaphragm is reset through the first spring, and more particularly, when the adjusting screw rotates towards the upper diaphragm cover, the spring seat cover and the first support are driven to press downwards, so that the first spring stores energy, the space between the lower diaphragm cover and the first diaphragm is reduced, the outlet pressure is reduced, when the outlet pressure needs to be increased, the adjusting screw only needs to be screwed upwards away from the upper diaphragm cover, the working principle of the adjusting screw is opposite to the pressure reduction, and further description is omitted; the second diaphragm, also referred to herein as a balancing diaphragm, functions to ensure that the pressure in the input chamber and the pressure in the output chamber maintain a pressure differential within a certain range, preventing an overpressure or an underpressure; the monitoring valve rod connected below the balance pressure device can move along with the balance pressure device, so that the pressure in the output cavity is transmitted to the third diaphragm in real time, and the output pressure can be ensured to be constant through the real-time feedback of the third diaphragm under the condition of small pressure fluctuation.

Drawings

Fig. 1 is a schematic structural diagram of a low-voltage monitoring integrated voltage regulator according to the present invention;

fig. 2 is a schematic structural diagram of a portion a in fig. 1 of an integrated low-voltage monitoring voltage regulator according to the present invention;

fig. 3 is a schematic structural diagram of a portion B in fig. 1 of the low-voltage monitoring integrated voltage regulator according to the present invention;

fig. 4 is a schematic structural diagram of a portion C in fig. 1 of the low-voltage monitoring integrated voltage regulator according to the present invention;

fig. 5 is a schematic structural diagram of a portion D in fig. 1 of the low-voltage monitoring integrated voltage regulator according to the present invention;

fig. 6 is the utility model provides a part E's schematic structure in low pressure control integral type voltage regulator fig. 1.

In the figure: 1. a valve body; 101. an input chamber; 102. an output cavity; 103. a valve port seat; 2. a diaphragm body; 201. a second diaphragm; 202. a second support; 2021. a second screw; 203. a third support; 204. a valve stem guide retainer; 2041. a guide sleeve; 3. a first diaphragm; 301. an upper diaphragm cover; 3011. a first bolt; 302. a lower diaphragm cover; 3021. a flange plate; 3022. a first screw; 303. a membrane support disc; 304. a conduit; 305. a discharge valve; 3051. a drain nut; 306. a discharge valve; 3061. discharging bolts; 307. locking the nut; 4. adjusting the screw rod; 401. a first support; 402. a spring seat cover; 403. a first spring; 4031. a spring retainer; 4032. a set screw; 5. a vent valve; 501. a breathing valve cap; 502. a second spring; 503. a valve plate; 6. a first valve stem; 601. a third spring; 602. a locknut; 603. screwing a nut; 7. monitoring the diaphragm cover; 701. a second bolt; 8. monitoring the valve stem; 801. a third diaphragm; 9. a pressure balancing device; 901. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-6, a low pressure monitoring integral type voltage regulator, including valve body 1, valve body 1 includes input chamber 101 and output chamber 102, and valve body 1 top is connected with diaphragm body 2, and diaphragm body 2 top is connected with the diaphragm chamber, and the diaphragm chamber comprises last diaphragm lid 301 and lower diaphragm lid 302, goes up diaphragm lid 301 and lower diaphragm lid 302 and links to each other through first bolt 3011, and valve body 1 bottom is connected with control diaphragm lid 7 through second bolt 701.

The upper diaphragm cover 301 is fixedly connected with a vent valve 5 and is integrally formed with the upper diaphragm cover 301, and the bottom of the lower diaphragm cover 302 is connected with a discharge valve 305.

The first diaphragm 3 is connected in the diaphragm cavity, the first valve rod 6 is connected in the diaphragm cavity in a sliding mode, the first spring 403 is connected in the diaphragm cavity, and one end of the first spring 403 abuts against the first diaphragm 3.

The second diaphragm 201 is connected in the diaphragm body 2, one end of the first valve rod 6, which is far away from the diaphragm cavity, penetrates through the first diaphragm 3 and the second diaphragm 201 and extends into the output cavity 102, the balance pressure device 9 is connected in the output cavity 102, and the top of the balance pressure device 9 is connected with the first valve rod 6.

The bottom of the balance pressure device 9 is connected with a monitoring valve rod 8, one end of the monitoring valve rod 8, which is far away from the balance pressure device 9, is connected with a third diaphragm 801, and the third diaphragm 801 is connected in a monitoring diaphragm cover 7.

The top of the upper diaphragm cover 301 is connected with a spring seat cover 402, the spring seat cover 402 is connected with an adjusting screw rod 4 in a threaded manner, the adjusting screw rod 4 extends to the inside of the upper diaphragm cover 301 and is connected with a first support 401, and the other end of the first spring 403 is abutted to the first support 401.

A valve plate 503 is connected in the vent valve 5 in a sliding manner, a second spring 502 is connected to the top of the valve plate 503, a breathing valve cap 501 is connected to the top of the vent valve 5, and one end, far away from the valve plate 503, of the second spring 502 abuts against the breathing valve cap 501.

A stop screw 4032 is connected to the first stem 6, a diaphragm support plate 303 is connected to the stop screw 4032, the diaphragm support plate 303 is located on the top of the first diaphragm 3, a spring retainer 4031 is connected to the top of the stop screw 4032, and the first spring 403 abuts against the spring retainer 4031.

A locknut 602 is connected to the spring retainer 4031 through an internal thread, a third spring 601 is connected to the top of the locknut 602, an upper nut 603 is connected to the top of the first valve rod 6, and one end, away from the locknut 602, of the third spring 601 abuts against the upper nut 603.

The lower diaphragm cover 302 is integrally formed with the lower diaphragm cover 302 and is connected with a conduit 304 at the bottom thereof, the drain valve 305 is connected to the conduit 304 through a locking nut 307, the drain valve 306 is connected to the inside of the drain valve 305, a drain bolt 3061 is connected to the drain valve 306 through an internal thread, a drain nut 3051 is connected to the drain valve 305, and the drain bolt 3061 is connected to the drain nut 3051 through a thread.

The lower diaphragm cover 302 is connected with a flange 3021, the flange 3021 is connected with the diaphragm body 2 through a first screw 3022, and the diaphragm body 2 is connected with the valve body 1 through a second screw 2021.

A stem guide holder 204 is connected to the diaphragm body 2, a guide sleeve 2041 is connected to the stem guide holder 204, and the first valve stem 6 is slidably connected to the guide sleeve 2041.

A second support 202 is connected to the diaphragm body 2, a second diaphragm 201 is connected to the top of the second support 202, a third support 203 is connected to the top of the second diaphragm 201, and the first valve stem 6 is slidably connected to the second support 202 and the third support 203.

The valve body 1 is internally connected with a valve port seat 103, and the balance pressure device 9 is provided with a groove 901 matched with the valve port seat 103.

The working principle is as follows: in the utility model, the inlet fluid is inserted into the input cavity 101 of the valve body 1, the output cavity 102 is connected with the output pipeline, and the feedback fluid is introduced into the discharge valve 305 on the output pipeline, and after the fluid is introduced into the input cavity 101, the fluid flows into the output cavity 102 through the valve port seat 103, and then a feedback fluid is supplied to the discharge valve 305, so that the first diaphragm 3 is lifted upwards, thereby driving the diaphragm support disk 303 to move upwards, and the third spring 601 stores energy to pull the first valve rod 6 upwards, and reduce the distance between the balance pressure device 9 and the valve port seat 103, and further reduce the outlet pressure, and here, when the diaphragm support disk 303 moves upwards, the space in the upper diaphragm cover 301 is reduced, so that the internal gas is compressed, and the vent valve 5 connected on the upper diaphragm cover 301 can effectively discharge the gas, specifically, when the gas pressure in the upper diaphragm cover 301 is increased, the valve plate 503 can be pushed to move upwards, thereby, the breathing valve cap 501 is conducted to discharge the gas, and when the pressure is smaller than the elastic potential energy of the second spring 502, the valve plate 503 is pressed downwards to be closed, so that the upper diaphragm cover 301 is sealed; when the pressure falls back, the first spring 403 stores energy, and the first diaphragm 3 is reset through the first spring 403, more specifically, when the adjusting screw 4 rotates towards the upper diaphragm cover 301, the spring seat cover 402 and the first support 401 are driven to press downwards, so that the first spring 403 stores energy, the space between the lower diaphragm cover 302 and the first diaphragm 3 is reduced, and further the outlet pressure is reduced, when the outlet pressure needs to be increased, the adjusting screw 4 only needs to be screwed upwards away from the upper diaphragm cover 301, and the working principle of the pressure reduction is opposite to that of pressure reduction, which is not described herein; the second diaphragm 201, which may also be referred to herein as a balance diaphragm, mainly functions to ensure that the pressure in the input chamber 101 and the pressure in the output chamber 102 maintain a certain range of pressure differences, preventing overpressure or underpressure conditions; the monitoring valve rod 8 connected below the balance pressure device 9 can move along with the balance pressure device 9, so that the pressure in the output cavity 102 is transmitted to the third diaphragm 801 in real time, and can still be fed back through the third diaphragm 801 in real time under the condition of small pressure fluctuation, and the output pressure is guaranteed to be constant.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The low-pressure monitoring integrated pressure regulator comprises a valve body (1), wherein the valve body (1) comprises an input cavity (101) and an output cavity (102), and is characterized in that a diaphragm body (2) is connected to the top of the valve body (1), a diaphragm cavity is connected to the top of the diaphragm body (2), the diaphragm cavity consists of an upper diaphragm cover (301) and a lower diaphragm cover (302), the upper diaphragm cover (301) and the lower diaphragm cover (302) are connected through a first bolt (3011), and the bottom of the valve body (1) is connected with a monitoring diaphragm cover (7) through a second bolt (701);

the upper diaphragm cover (301) is fixedly connected with a vent valve (5) and is integrally formed with the upper diaphragm cover (301), and the bottom of the lower diaphragm cover (302) is connected with a discharge valve (305);

a first diaphragm (3) is connected in the diaphragm cavity, a first valve rod (6) is connected in the diaphragm cavity in a sliding mode, a first spring (403) is connected in the diaphragm cavity, and one end of the first spring (403) abuts against the first diaphragm (3);

a second diaphragm (201) is connected in the diaphragm body (2), one end, far away from the diaphragm cavity, of the first valve rod (6) penetrates through the first diaphragm (3) and the second diaphragm (201) and extends into the output cavity (102), a balance pressure device (9) is connected in the output cavity (102), and the top of the balance pressure device (9) is connected with the first valve rod (6);

the bottom of the balance pressure device (9) is connected with a monitoring valve rod (8), one end, far away from the balance pressure device (9), of the monitoring valve rod (8) is connected with a third diaphragm (801), and the third diaphragm (801) is connected in a monitoring diaphragm cover (7).

2. The integrated low-pressure monitoring pressure regulator according to claim 1, wherein a spring seat cover (402) is connected to the top of the upper diaphragm cover (301), an adjusting screw rod (4) is connected to the spring seat cover (402) in a threaded manner, the adjusting screw rod (4) extends to the inside of the upper diaphragm cover (301) and is connected with a first support (401), and the other end of the first spring (403) abuts against the first support (401).

3. A low pressure monitoring integrated pressure regulator according to claim 1, characterized in that a valve plate (503) is slidably connected in the vent valve (5), a second spring (502) is connected to the top of the valve plate (503), a breathing valve cap (501) is connected to the top of the vent valve (5), and one end of the second spring (502) far away from the valve plate (503) is abutted to the breathing valve cap (501).

4. A low pressure monitoring integrated pressure regulator according to claim 1, wherein a stop screw (4032) is connected to the first valve stem (6), a diaphragm support plate (303) is connected to the stop screw (4032), the diaphragm support plate (303) is located on top of the first diaphragm (3), a spring retainer (4031) is connected to top of the stop screw (4032), and the first spring (403) abuts against the spring retainer (4031).

5. A low pressure monitoring integral pressure regulator according to claim 4, wherein a locknut (602) is connected with the inner thread of the spring retainer (4031), a third spring (601) is connected with the top of the locknut (602), an upper nut (603) is connected with the top of the first valve rod (6), and one end, away from the locknut (602), of the third spring (601) is abutted to the upper nut (603).

6. A low pressure monitoring integrated pressure regulator according to claim 1, wherein the bottom of the lower diaphragm cover (302) is connected with a conduit (304) and is integrally formed with the lower diaphragm cover (302), the discharge valve (305) is connected to the conduit (304) through a locking nut (307), the discharge valve (305) is internally connected with a discharge valve (306), the discharge valve (306) is internally connected with a discharge bolt (3061) through a thread, the discharge valve (305) is internally connected with a discharge nut (3051), and the discharge bolt (3061) is in threaded connection with the discharge nut (3051).

7. A low pressure monitoring integrated pressure regulator according to claim 1, characterized in that a flange (3021) is connected in the lower diaphragm cover (302), the flange (3021) being connected to the diaphragm body (2) by first screws (3022), and the diaphragm body (2) being connected to the valve body (1) by second screws (2021).

8. A low pressure monitoring integrated pressure regulator according to claim 7, wherein a valve stem guide retainer (204) is connected to the diaphragm body (2), a guide sleeve (2041) is connected to the valve stem guide retainer (204), and the first valve stem (6) is slidably connected to the guide sleeve (2041).

9. A low pressure monitoring integrated pressure regulator according to claim 8, wherein a second support (202) is connected to the diaphragm body (2), the second diaphragm (201) is connected to the top of the second support (202), a third support (203) is connected to the top of the second diaphragm (201), and the first valve stem (6) is slidably connected to the second support (202) and the third support (203).

10. A low-pressure monitoring integrated pressure regulator according to claim 1, wherein the valve body (1) is internally connected with a valve port seat (103), and the balance pressure gauge (9) is provided with a groove (901) matched with the valve port seat (103).