CN217328642U

CN217328642U - Gas pressure regulator with bleeding valve

Info

Publication number: CN217328642U
Application number: CN202220855894.2U
Authority: CN
Inventors: 陈镜兔; 徐龙; 贝正海; 朱杭军; 阮少烽
Original assignee: Zhejiang Chunhui Intelligent Control Co Ltd
Current assignee: Zhejiang Chunhui Intelligent Control Co Ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-08-30
Anticipated expiration: 2032-04-14

Abstract

The utility model discloses a gas pressure regulator of valve is diffused in area, its technical scheme main points are: the valve comprises a valve body, wherein a valve port is formed in a partition plate in the valve body, a valve core for sealing is arranged at the valve port on one side of an outlet cavity, a signal box with a diaphragm arranged therein is mounted on the valve body, the diaphragm divides an inner cavity of the signal box into a balance cavity and an adjusting cavity, the balance cavity is communicated with one side of the outlet cavity, an adjusting spring for abutting against and limiting the diaphragm is arranged in the adjusting cavity, inner peripheral holes communicated with two sides are formed in the diaphragm, a valve rod is connected to the valve core, and the valve rod extends into the signal cavity from one side of the balance cavity and penetrates through the inner peripheral holes; the balance cavity and the adjusting cavity are respectively provided with a diffusing seat, and the diffusing seats are mutually pressed with the membrane through diffusing springs to realize sealing. The utility model discloses a pressure diffusion subassembly and the gas pressure regulator intercombination with the gas, the function intercombination with gas pressure regulation and safety diffusion has reduced the quantity and the whole volume of equipment to can reduce the manufacturing cost of equipment.

Description

Gas pressure regulator with bleeding valve

Technical Field

The utility model relates to an air-vent valve, more specifically say, it relates to a gas pressure regulator of valve is diffused in area.

Background

In the process of pipeline gas transmission and distribution, when no user uses gas at the downstream of the pressure regulator, the pressure regulator can be automatically closed, so that the gas flow passing through the pressure regulator is zero, and at the moment, an outlet cavity of the pressure regulator is in a closed state; in such a sealed state, if the ambient temperature around the downstream pipeline rises or the pressure regulator leaks between the upstream and downstream pipelines, the pressure of the downstream pipeline will rise continuously, so that the safety of the gas-using equipment on the downstream pipeline is threatened.

In order to improve the safety of gas distribution, it is often necessary to automatically release the gas in the downstream pipeline after the pressure rises to a certain value, so as to maintain the pressure in the downstream pipeline within a safe range.

At present, for the safe diffusion of the downstream pipeline of the gas transmission and distribution, a diffusion system needs to be installed on the downstream pipeline, so that the volume of equipment on the downstream pipeline is increased, and the cost is increased.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the above-mentioned problem and provide a gas pressure regulator of valve is diffused in area, diffuses the subassembly and gas pressure regulator inter combination through the pressure with the gas, with the function inter combination that gas pressure regulating and safety were diffused, reduced the quantity and the whole volume of equipment to can reduce the manufacturing cost of equipment.

The above technical object of the present invention can be achieved by the following technical solutions: a gas pressure regulator with a relief valve comprises a valve body, wherein the valve body is divided into an inlet cavity and an outlet cavity by a partition plate, the partition plate is provided with a valve port, the valve port on one side of the outlet cavity is provided with a valve core for sealing, the valve body is provided with a signal box internally provided with a diaphragm, the diaphragm divides the inner cavity of the signal box into a balance cavity and an adjusting cavity, the balance cavity is communicated with one side of the outlet cavity, an adjusting spring for abutting against and limiting the diaphragm is arranged in the adjusting cavity, one side of the diaphragm, facing the adjusting spring, is provided with a bearing disc, the diaphragm is provided with inner peripheral holes communicated with two sides, the valve core is connected with a valve rod, and the valve rod extends into the signal cavity from one side of the balance cavity and penetrates through the inner peripheral holes; the balance cavity and the adjusting cavity are respectively provided with a releasing seat and a releasing spring seat, the releasing seat is fixedly connected to the valve rod and used for abutting against and sealing the inner peripheral hole, the releasing spring seat is installed on the valve rod and can be axially adjusted by the valve rod, and a releasing spring is elastically abutted between the releasing spring seat and the bearing disc.

The utility model discloses it is further set up to, it supports through the nut to press spacingly to diffuse one side of spring holder diaphragm dorsad, nut threaded connection is in the valve rod.

The utility model discloses further set up to, set up the guiding hole three that supplies the valve rod to pass on the diffusing spring holder, discharge orifice two has been seted up to the periphery of guiding hole three.

The utility model discloses further set up to, the last guiding hole two of seting up corresponding to interior border hole department of load dish, the valve rod passes guiding hole two to with load dish sliding connection.

The utility model discloses further set up to, the valve rod passes the seat of loosing to realize sealing through sealing washer three.

The utility model discloses further set up to, the signal box is including bottom and top cap that each other approximately closes, the sealed clamping of diaphragm is between bottom box top cap, form respectively between diaphragm and bottom, the top cap balanced chamber and regulation chamber.

The utility model discloses further set up to, set up the opening section of thick bamboo with external intercommunication on the top cap, opening section of thick bamboo female connection has a support section of thick bamboo, establishes the adjusting spring seat in the support section of thick bamboo, adjusting spring elasticity supports presses between adjusting spring seat and load dish.

The utility model is further arranged in such a way that the bottom cover is arranged outside the inlet cavity of the valve body, the bottom cover and the inlet cavity of the valve body are separated by the baffle plate, the baffle plate is provided with a first guide hole which penetrates through the bottom cover and the valve body, and the valve rod passes through the first guide hole and can be adjusted in the first guide hole in a sliding way; and the first guide hole and the valve rod are sealed through a first sealing ring.

The utility model discloses further set up to, baffle installation is on the connector of valve body, realizes sealing through sealing washer two between baffle and the connector.

The utility model discloses further set up to, the balanced chamber outside of signal box is connected with the signal pipe, the signal pipe is connected with the delivery line of export chamber one side.

To sum up, the utility model discloses following beneficial effect has:

through the pressure diffusion subassembly and the gas pressure regulator intercombination with the gas, adopt the floating structural connection of elasticity between diaphragm and the valve rod, when the gas pipeline of low reaches goes up too big pressure, can produce certain displacement between valve rod and the diaphragm and float to can open the interior circumference hole on the diaphragm, realize the diffusion of gas, can with the function intercombination of gas pressure regulating and safe diffusion, reduce the quantity and the whole volume of equipment, and can reduce the manufacturing cost of equipment.

Drawings

Fig. 1 is a schematic structural view of a gas pressure regulator with a bleeding valve according to the present invention;

fig. 2 is a schematic view of the connection structure of the diaphragm and the valve rod of the present invention.

Reference numerals: 1. a delivery line; 2. a valve body; 21. a partition plate; 22. an inlet chamber; 23. an outlet chamber; 24. a valve port; 25. a connecting port; 3. a valve stem; 31. a valve core; 32. a dispensing seat; 33. a relief spring seat; 34. a step; 35. a third sealing ring; 36. a third guide hole; 37. a nut; 38. a second overflowing hole; 39. a blow-off spring; 4. a baffle plate; 41. a first guide hole; 42. a first sealing ring; 43. a second sealing ring; 5. a signal box; 51. a bottom cover; 52. a top cover; 53. a balancing chamber; 54. an adjustment chamber; 55. an open cylinder; 56. a support cylinder; 57. an adjusting spring seat; 6. a signal tube; 7. a membrane; 71. an inner peripheral hole; 72. an outer edge; 8. a force bearing disc; 81. a second guide hole; 82. a first overflowing hole; 9. the spring is adjusted.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

The embodiment discloses a gas pressure regulator with a bleeding valve, which comprises a valve body 2, wherein the valve body 2 is divided into an inlet cavity 22 and an outlet cavity 23 by a partition plate 21; when the valve body 2 is installed, the inlet cavity 22 of the valve body 2 is connected to the upstream pipeline of the conveying pipeline 1, and the outlet cavity 23 is connected to the downstream pipeline of the conveying pipeline 1, so that the gas circulation of the gas pressure regulator is realized.

A valve core 31 is arranged at the valve port 24 at one side of the outlet cavity 23, and the valve core 31 can elastically float up and down relative to the valve port 24 and is elastically supported by the adjusting spring 9. After the pressure of the gas pipeline on one side of the outlet cavity 23 is increased, the pressure pushes the valve core 31 to be away from the valve port 24, and the valve core 31 opens the valve port 24 to realize the circulation of gas; when the pressure of the gas pipeline on one side of the outlet cavity 23 is lower than a preset value, the regulating spring 9 pushes the valve core 31, and the valve core 31 and the valve port 24 are mutually pressed to realize the sealing of the valve port 24.

The valve body 2 is provided with a signal box 5, a diaphragm 7 is arranged in the signal box 5, the diaphragm 7 divides the inner cavity of the signal box 5 into a balance cavity 53 and an adjusting cavity 54, wherein the balance cavity 53 is communicated with one side of the outlet cavity 23, and the pressure in the gas pipeline at the downstream of the outlet cavity 23 can be directly acted on the diaphragm 7 at one side of the balance cavity 53. An adjusting spring 9 is arranged in the adjusting cavity 54, one end of the adjusting spring 9 is elastically supported by an adjusting spring seat 57, and the other end of the adjusting spring is pressed against the diaphragm 7 at one side of the adjusting cavity 54, so that the balance between the gas pressure and the spring pressure is realized at two sides of the diaphragm 7. In order to realize the stability of the force bearing of the diaphragm 7, a force bearing disc 8 can be adhered to one side of the diaphragm 7 facing the adjusting spring 9, and the adjusting spring 9 is supported by the force bearing disc 8.

The valve core 31 is connected with the valve rod 3, one end of the valve rod 3 penetrates through the valve body 2 and extends into the signal box 5, and the valve rod 3 and the elastic diaphragm 7 are linked, so that the elastic diaphragm 7 can synchronously drive the valve rod 3 and the valve core 31 to float in the elastic floating process, and the valve core 31 and the valve port 24 are opened and closed.

Specifically, the signal box 5 includes a bottom cover 51 and a top cover 52 which are mutually covered, wherein the bottom cover 51 is mounted on the outer wall of the inlet chamber 22 side of the valve body 2, and is fixed by a fastener; the top cover 52 is covered on the bottom cover 51, the top cover and the bottom cover form an inner cavity, the outer edge 72 of the diaphragm 7 is hermetically clamped between the bottom cover 51 and the top cover 52, a balance cavity 53 is formed between the diaphragm 7 and the bottom cover 51, and an adjusting cavity 54 is formed between the diaphragm 7 and the top cover 52.

A connecting port 25 is arranged on the outer wall of the inlet cavity 22 of the valve body 2, the bottom cover 51 is arranged on the connecting port 25, and the baffle plate 4 is arranged at the connecting port 25; the baffle plate 4 can separate and seal the inlet cavity 22 of the valve body 2 and the balance cavity 53 in the bottom cover 51, and the sealing between the baffle plate 4 and the connecting port 25 is realized by the second sealing ring 43.

The baffle plate 4 is provided with a first guide hole 41 which penetrates through the bottom cover 51 and the valve body 2, the valve rod 3 can penetrate through the first guide hole 41 and extend into the signal box 5, a first sealing ring 42 is arranged in the first guide hole 41, and the first sealing ring 42 can keep the sealing state between the valve rod 3 and the first guide hole 41 in the sliding adjustment process of the valve rod 3, so that the inlet cavity 22 and a balance cavity 53 in the signal box 5 are sealed and isolated.

The valve rod 3 can be slidably adjusted in the first guide hole 41, a cylindrical annular bulge is formed at the position of the first guide hole 41 of the baffle plate 4, the length of the first guide hole 41 is prolonged, the valve rod 3 can be further slidably guided, and the stability of the sliding adjustment of the valve rod 3 can be improved.

An opening cylinder 55 communicated with the outside is arranged on the top cover 52, a supporting cylinder 56 is connected with the opening cylinder 55 in a threaded manner, an adjusting spring seat 57 is arranged in the supporting cylinder 56, and two ends of the adjusting spring 9 are elastically pressed between the adjusting spring 9 and the bearing disc 8, so that the adjusting spring 9 is supported. Through the screw thread regulation support cylinder 56, can adjust the initial compression volume of adjusting spring 9 to adjust the gas pressure value that diaphragm 7 elasticity floated, use with the adaptation gas regulator.

In order to realize the gas pressure transmission between the outlet cavity 23 and the balance cavity 53 of the signal box 5, the signal pipe 6 can be connected to the outer side of the balance cavity 53 of the signal box 5, the other end of the signal pipe 6 is connected with the conveying pipeline 1 at one side of the outlet cavity 23, and the gas pressure transmission can be realized through the signal pipe 6. The signal pipe 6 can be connected to the conveying pipeline 1 on one side of the outlet cavity 23 through a three-way joint, or an interface can be directly arranged on the outlet cavity 23 of the valve body 2, the signal pipe 6 is directly connected with the valve body 2, and the transmission of gas pressure can also be realized.

Set up elasticity safety diffusion structure between valve rod 3 and diaphragm 7, after the pressure in balanced chamber 53 is too big, produce elasticity between diaphragm 7 and the valve rod 3 and float, can open safety diffusion structure to realize that the gas is safe to be diffused.

As shown in fig. 2, the diaphragm 7 is provided with inner peripheral holes 71 communicated with two sides, and the valve rod 3 connected to the valve core 31 passes through the inner peripheral holes 71 of the diaphragm 7 from one side of the balance cavity 53 and extends into the signal cavity; and a second guide hole 81 is formed in the bearing disc 8 corresponding to the inner peripheral hole 71, and a first overflowing hole 82 is formed in the outer periphery of the second guide hole 81 and is used for gas to flow through. The valve rod 3 penetrates through the second guide hole 81, and a sliding connection structure is formed between the guide rod and the bearing disc 8, so that floating adjustment of the valve rod 3 can be achieved more smoothly.

A diffusing seat 32 and a diffusing spring seat 33 are respectively arranged in a balance cavity 53 and an adjusting cavity 54 at two sides of the diaphragm 7, wherein the diffusing seat 32 is fixedly connected to the valve rod 3, the valve rod 3 penetrates through the diffusing seat 32, the support is realized through a step 34 bulge on the valve rod 3, and the sealing is realized through a sealing ring III 35 at the connecting part.

The dispersion seat 32 can be pressed against the edge of the inner peripheral hole 71 of the diaphragm 7, and the inner peripheral hole 71 can be sealed after being pressed; the diffusing spring seat 33 is installed on the valve rod 3 and can axially adjust the valve rod 3, the diffusing spring 39 is elastically pressed between the diffusing spring seat 33 and the bearing disc 8, the valve rod 3 and the diffusing seat 32 on the valve rod 3 can be driven to move towards the diaphragm 7 through the elastic force of the diffusing spring 39, the diaphragm 7 is pressed and sealed, the two sides of the diaphragm 7 are kept closed, and the stable clamping connection between the diaphragm 7 and the valve rod 3 is kept.

The relief spring seat 33 is provided with a third guide hole 36 through which the valve rod 3 passes, and the periphery of the third guide hole 36 is provided with a second overflowing hole 38. The valve rod 3 can pass through a third guide hole 36 on the scattered spring seat 33 to form a sliding adjusting structure; and the side of the diffusing spring seat 33, which is back to the diaphragm 7, is pressed and limited by a nut 37, and the nut 37 is in threaded connection with the valve rod 3. Through adjusting nut 37, can adjust the interval between diffusing spring holder 33 and the seat 32 of diffusing to adjust the initial compression volume of diffusing spring 39, thereby the control is diffused the support between seat 32 and the diaphragm 7 and is pressed sealing pressure, with the required gas pressure value of regulation gas diffusion.

When the pressure in the conveying pipeline 1 on one side of the outlet cavity 23 is too high, the pressure in the balance cavity 53 is synchronously increased, and the internal pressure of the balance cavity 53 pushes the diaphragm 7 to elastically deform upwards; in the upward elastic deformation process of the diaphragm 7, the valve rod 3 is pressed and limited by the valve core 31 and the valve port 24, and cannot move upwards continuously, the diaphragm 7 and the valve rod 3 and the dispersing seat 32 on the valve rod 3 move relatively, the diaphragm 7 and the dispersing seat 32 are separated from each other, the inner peripheral hole 71 of the diaphragm 7 is opened, the excessive pressure can be dispersed into the adjusting cavity 54, the adjusting cavity 54 is communicated with the outside, the excessive pressure gas can be directly discharged into the outside safe environment, and the stability and the safety of the downstream conveying pipeline 1 of the gas pressure regulator are maintained.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A gas pressure regulator with a relief valve comprises a valve body (2), the interior of the valve body (2) is divided into an inlet cavity (22) and an outlet cavity (23) by a partition plate (21), a valve port (24) is formed in the partition plate (21), a valve core (31) for sealing is arranged at the valve port (24) on one side of the outlet cavity (23), a signal box (5) with a diaphragm (7) arranged therein is mounted on the valve body (2), the inner cavity of the signal box (5) is divided into a balance cavity (53) and an adjusting cavity (54) by the diaphragm (7), the balance cavity (53) is communicated with one side of the outlet cavity (23), an adjusting spring (9) for abutting against and limiting the diaphragm (7) is arranged in the adjusting cavity (54), a bearing disc (8) is arranged on one side of the diaphragm (7) facing the adjusting spring (9), and the inner peripheral holes (71) communicated with the two sides are formed in the diaphragm (7), the valve core (31) is connected with a valve rod (3), and the valve rod (3) extends into the signal cavity from one side of the balance cavity (53) and penetrates through the inner peripheral hole (71); the balance cavity (53) and the adjusting cavity (54) are internally provided with a releasing seat (32) and a releasing spring seat (33) respectively, the releasing seat (32) is fixedly connected to the valve rod (3) and used for pressing and sealing the inner peripheral hole (71), the releasing spring seat (33) is installed on the valve rod (3) and can be axially adjusted by the valve rod (3), and a releasing spring (39) is elastically pressed between the releasing spring seat (33) and the bearing disc (8).

2. The gas pressure regulator with the bleeding valve as recited in claim 1, characterized in that one side of the bleeding spring seat (33) facing away from the diaphragm (7) is pressed and limited by a nut (37), and the nut (37) is connected to the valve rod (3) by screw thread.

3. The gas pressure regulator with the bleeding valve as defined in claim 2, wherein the bleeding spring seat (33) is provided with a third guide hole (36) for the valve rod (3) to pass through, and the outer periphery of the third guide hole (36) is provided with a second through hole (38).

4. The gas pressure regulator with the bleeding valve as recited in claim 1, wherein a second guide hole (81) is formed in the bearing disc (8) corresponding to the inner peripheral hole (71), and the valve rod (3) passes through the second guide hole (81) and is slidably connected with the bearing disc (8).

5. Gas pressure regulator with bleed valve according to claim 1, characterized in that the valve stem (3) passes through the bleed seat (32) and is sealed by means of a third sealing ring (35).

6. The gas pressure regulator with the relief valve according to claim 1, wherein the signal box (5) comprises a bottom cover (51) and a top cover (52) which are mutually covered, the diaphragm (7) is hermetically clamped between the bottom cover (51) and the top cover (52), and the balance cavity (53) and the regulation cavity (54) are respectively formed between the diaphragm (7) and the bottom cover (51) and the top cover (52).

7. The gas pressure regulator with the bleeding valve as defined in claim 6, wherein the top cover (52) is provided with an open cylinder (55) communicated with the outside, the open cylinder (55) is connected with a support cylinder (56) through a thread, the support cylinder (56) is internally provided with an adjusting spring seat (57), and the adjusting spring (9) is elastically pressed between the adjusting spring seat (57) and the bearing disc (8).

8. The gas pressure regulator with the bleeding valve as recited in claim 6, wherein the bottom cover (51) is mounted outside the inlet chamber (22) of the valve body (2), the bottom cover (51) and the inlet chamber (22) of the valve body (2) are blocked by a baffle (4), a first guide hole (41) penetrating through the bottom cover (51) and the valve body (2) is formed in the baffle (4), and the valve rod (3) passes through the first guide hole (41) and can be slidably adjusted in the first guide hole (41); the first guide hole (41) and the valve rod (3) are sealed through a first sealing ring (42).

9. The gas pressure regulator with the bleeding valve as recited in claim 8, wherein the baffle (4) is mounted on the connecting port (25) of the valve body (2), and the baffle (4) and the connecting port (25) are sealed by a second sealing ring (43).

10. The gas pressure regulator with the bleeding valve according to claim 1, characterized in that a signal tube (6) is connected to the outside of the balance cavity (53) of the signal box (5), and the signal tube (6) is connected to the delivery pipe (1) on one side of the outlet cavity (23).