CN219975503U - Electrical proportion high-pressure back pressure valve - Google Patents
Electrical proportion high-pressure back pressure valve Download PDFInfo
- Publication number
- CN219975503U CN219975503U CN202320232814.2U CN202320232814U CN219975503U CN 219975503 U CN219975503 U CN 219975503U CN 202320232814 U CN202320232814 U CN 202320232814U CN 219975503 U CN219975503 U CN 219975503U
- Authority
- CN
- China
- Prior art keywords
- valve
- piston
- diaphragm
- back pressure
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008676 import Effects 0.000 claims 2
- 239000012528 membrane Substances 0.000 description 7
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model relates to an electric proportion high-pressure back pressure valve, which comprises an electric proportion valve and a valve body, wherein the electric proportion valve is connected with a diaphragm assembly, the diaphragm assembly is connected with a push rod, the push rod is connected with a piston seat arranged in a valve body, the piston seat is connected with a piston assembly, a piston cavity is arranged on the lower side of the piston assembly, a valve seat is arranged on the lower side of the piston cavity, a valve port pad is arranged in the valve seat, an inlet and an outlet are arranged on the valve body, and a valve port communicated with the inlet and the outlet is arranged on the valve port pad; the electric proportional valve is used for providing thrust for the diaphragm, and can receive 4-20mA signals to generate corresponding thrust and balance the pressure of the inlet of the high-pressure back pressure valve, so that the automatic control and the remote control of the high-pressure back pressure valve are realized, and the requirement of automatic control is met.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to an electric proportion high-pressure back pressure valve.
Background
The existing high-pressure back pressure valve cannot realize remote control and automatic control, and is mainly manually adjusted; meanwhile, in order to ensure high-pressure back pressure, the area of a piston is required to be smaller, the existing piston is connected with a valve core through threads, the installation structure can cause the area of the cross section of the piston to be larger, and meanwhile, the threads are easy to deform or burst under high pressure.
Disclosure of Invention
The utility model aims to provide an electric proportion high-pressure back pressure valve so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the electric proportional high-pressure back pressure valve comprises an electric proportional valve and a valve body, wherein the electric proportional valve is connected with a diaphragm assembly, the diaphragm assembly is connected with a push rod, the push rod is connected with a piston seat arranged in the valve body, the piston seat is connected with the piston assembly, a piston cavity is arranged on the lower side of the piston assembly, a valve seat is arranged on the lower side of the piston cavity, a valve port pad is arranged in the valve seat, an inlet and an outlet are arranged on the valve body, and a valve port communicated with the inlet and the outlet is arranged on the valve port pad; the piston assembly comprises a piston body, a valve core is arranged in the piston body, a baffle is arranged on the valve core, the valve core is riveted and fixed with the piston body through a baffle ring, a buffer spring is sleeved on the valve core on the upper side of the baffle, and the valve core is matched with the valve port in shape.
Optionally, a gap is reserved between the valve core and the piston body, and a buffer spring is arranged in the gap.
Optionally, the membrane assembly includes a first membrane cover and a second membrane cover, and a membrane is disposed between the first membrane cover and the second membrane cover.
Optionally, the membrane is connected with a push rod.
Optionally, the piston seat and piston assembly are movable up and down within the valve body.
Optionally, a first channel is arranged between the inlet and the valve port, a second channel is arranged between the outlet and the valve port, and the first channel and the second channel are communicated through the valve port.
Compared with the prior art, the utility model has the beneficial effects that:
1. the electric proportional high-pressure back pressure valve is additionally provided with the electric proportional valve for providing thrust for the diaphragm, and the electric proportional valve can receive 4-20mA signals to generate corresponding thrust and balance with the inlet pressure of the high-pressure back pressure valve, so that the automatic control and the remote control of the high-pressure back pressure valve are realized, and the requirement of automatic control is met.
2. According to the electric proportion high-pressure back pressure valve, the connecting mode between the piston body and the valve core is replaced by riveting from threaded connection, so that the structure of the piston body can be smaller in size, and the service life of the whole valve core is prolonged.
3. The electric proportion high-pressure back pressure valve is characterized in that a buffer spring is arranged between a piston body and a valve core, the buffer spring provides a buffer function, if the pressure of the upper side of the valve core is overlarge, the valve core can impact a valve port pad when moving downwards, and the buffer spring is utilized to buffer the impact of the valve port pad, so that the service life of the valve port pad is prolonged.
Drawings
FIG. 1 is a schematic diagram of the back pressure valve of the present utility model;
fig. 2 is a schematic view of the piston assembly of the present utility model.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1-2, an electrical proportion high pressure back pressure valve comprises an electrical proportion valve 100 and a valve body 200, wherein the electrical proportion valve 100 is connected with a diaphragm assembly 300, the diaphragm assembly 300 is connected with a push rod 400, the push rod 400 is connected with a piston seat 500 arranged in the valve body 200, the piston seat 500 is connected with a piston assembly 600, a piston cavity 700 is arranged on the lower side of the piston assembly 600, a valve seat 800 is arranged on the lower side of the piston cavity 700, a valve port pad 900 is arranged in the valve seat 800, an inlet 201 and an outlet 202 are arranged on the valve body 200, a valve port 901 which is communicated with the inlet 201 and the outlet 202 is arranged on the valve port pad 900, the diaphragm assembly 300 comprises a first diaphragm cover 301 and a second diaphragm cover 302, a diaphragm 303 is arranged between the first diaphragm cover 301 and the second diaphragm cover 302, and the diaphragm 303 is connected with the push rod 400.
It should be noted that, compressed air enters the electric proportional valve 100, the electric proportional valve 100 receives a 4-20mA signal, air comes out from the electric proportional valve 100, compresses the diaphragm 303, so as to push the ejector rod 400 to compress the piston assembly 600, so that the opening or closing of the valve port 901 is controlled by controlling the output pressure of the electric proportional valve 100, and the medium pressure at the outlet of the back pressure valve is balanced with the thrust of the electric proportional valve 100, so that the electric proportional valve 100 receives a 4-20mA signal in proportion to the outlet pressure of the back pressure valve, and the automatic control, remote control and high-pressure back pressure valve controlled by the electric proportional control are realized, thereby meeting the requirement of automatic control.
The piston assembly 600 comprises a piston body 601, a valve core 602 is arranged in the piston body 601, a baffle 603 is arranged on the valve core 602, the valve core 602 is riveted and fixed with the piston body 601 through a baffle ring 604, a buffer spring 605 is sleeved on the valve core 602 on the upper side of the baffle 603, the valve core 602 is matched with the valve port 901 in shape, a gap is reserved between the valve core 602 and the piston body 601, a buffer spring 605 is arranged in the gap, the piston seat 500 and the piston assembly 600 can move up and down in the valve body 200, a first channel 203 is arranged between the inlet 201 and the valve port 901, a second channel 204 is arranged between the outlet 202 and the valve port 901, and the first channel 203 and the second channel 204 are communicated through the valve port 901.
It should be noted that, in order to ensure high-pressure back pressure, the cross-sectional area of the piston body 601 needs to be smaller, after the retainer ring 604 is in interference fit with the baffle 603, the retainer ring is riveted and fixed, and the existing threaded connection is replaced by riveting, so that the structure of the piston body 601 can be made to be smaller in size, and deformation at the thread can be prevented in a high-pressure environment; meanwhile, a buffer spring 605 is arranged between the piston body 601 and the valve core 602, the buffer spring 605 provides a buffer function, if the pressure on the upper side of the valve core 602 is too high, the valve core 602 can impact the valve port pad 900, and the buffer spring 605 is utilized to buffer the impact of the valve port pad 900, so that the service life of the valve port pad 900 is prolonged.
The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.
Claims (6)
1. The utility model provides an electric proportion high pressure backpressure valve which is characterized in that, including electric proportion valve (100) and valve body (200), electric proportion valve (100) are connected with diaphragm subassembly (300), diaphragm subassembly (300) are connected with ejector pin (400), ejector pin (400) are connected with piston seat (500) that set up in valve body (200), piston seat (500) are connected with piston subassembly (600), piston subassembly (600) downside is equipped with piston chamber (700), piston chamber (700) downside is equipped with disk seat (800), be equipped with valve port pad (900) in disk seat (800), be equipped with import (201) and export (202) on valve body (200), offer on valve port pad (900) with valve port (901) that import (201) and export (202) are linked together;
the piston assembly (600) comprises a piston body (601), a valve core (602) is arranged in the piston body (601), a baffle plate (603) is arranged on the valve core (602), the valve core (602) is riveted and fixed with the piston body (601) through a baffle ring (604), a buffer spring (605) is sleeved on the valve core (602) at the upper side of the baffle plate (603), and the valve core (602) is matched with the valve port (901) in shape.
2. The electrical proportional high-pressure back pressure valve according to claim 1, wherein a gap is left between the valve core (602) and the piston body (601), and a buffer spring (605) is arranged in the gap.
3. An electrical proportional high pressure back pressure valve according to claim 2, wherein the diaphragm assembly (300) comprises a first diaphragm cap (301) and a second diaphragm cap (302), the diaphragm (303) being arranged between the first diaphragm cap (301) and the second diaphragm cap (302).
4. An electrical proportional high pressure back pressure valve according to claim 3, wherein the diaphragm (303) is connected to the stem (400).
5. The electrical proportional high pressure back pressure valve of claim 4, wherein the piston seat (500) and the piston assembly (600) are movable up and down within the valve body (200).
6. An electrical proportional high pressure back pressure valve according to claim 5 wherein a first passageway (203) is provided between the inlet (201) and the valve port (901), a second passageway (204) is provided between the outlet (202) and the valve port (901), and the first passageway (203) and the second passageway (204) are in communication through the valve port (901).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320232814.2U CN219975503U (en) | 2023-02-16 | 2023-02-16 | Electrical proportion high-pressure back pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320232814.2U CN219975503U (en) | 2023-02-16 | 2023-02-16 | Electrical proportion high-pressure back pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219975503U true CN219975503U (en) | 2023-11-07 |
Family
ID=88579096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320232814.2U Active CN219975503U (en) | 2023-02-16 | 2023-02-16 | Electrical proportion high-pressure back pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219975503U (en) |
-
2023
- 2023-02-16 CN CN202320232814.2U patent/CN219975503U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110131477B (en) | Multistage throttle labyrinth relief pressure valve | |
| CN105952953A (en) | Response time-adjustable pilot electromagnetic valve structure | |
| CN219975503U (en) | Electrical proportion high-pressure back pressure valve | |
| CN202469116U (en) | High pressure gas pressure reducing valve | |
| CN210770473U (en) | Safety valve with pneumatic device | |
| CN111623154A (en) | Gas pressure regulator | |
| CN111075957B (en) | Bidirectional on-off control high-pressure pilot electromagnetic valve | |
| CN216407751U (en) | Multi-stage noise reduction cage type regulating valve | |
| CN216812906U (en) | Low-voltage electromagnetic valve | |
| CN202349319U (en) | Fuel gas safety valve | |
| CN214466381U (en) | Integrated air compensating valve with check valve | |
| CN210461825U (en) | Gas safety relief valve | |
| CN205678201U (en) | Axial-flow type pressure-reducing valve | |
| CN114811128A (en) | Novel pressure reducing valve | |
| CN2465009Y (en) | Guiding type safety valve with discharging valve device | |
| CN219035723U (en) | Electric proportion micro-pressure relief valve with self-pressure relief structure | |
| CN220060725U (en) | Proportional electromagnetic valve for hydraulic retarder | |
| CN219493218U (en) | PWM pneumatic electromagnetic valve | |
| CN214579067U (en) | Two-way electromagnetic valve | |
| CN210266053U (en) | Miniature pressure reducing valve | |
| CN219796290U (en) | Two-position two-way direct-acting normally-closed electromagnetic valve | |
| CN218031630U (en) | Electric control valve with emergency valve opening function | |
| CN220828560U (en) | Miniature three-stage pressure reducer | |
| CN217153001U (en) | Proportional valve with parallel channels | |
| CN217634173U (en) | Quick opening valve suitable for load acceleration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |