CN222026387U - Pneumatic control valve capable of improving sealing performance - Google Patents
Pneumatic control valve capable of improving sealing performance Download PDFInfo
- Publication number
- CN222026387U CN222026387U CN202420451911.5U CN202420451911U CN222026387U CN 222026387 U CN222026387 U CN 222026387U CN 202420451911 U CN202420451911 U CN 202420451911U CN 222026387 U CN222026387 U CN 222026387U
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- valve
- sealing gasket
- sealing
- valve body
- air
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- 238000007789 sealing Methods 0.000 title claims description 83
- 210000004907 gland Anatomy 0.000 claims description 24
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000875 corresponding effect Effects 0.000 description 16
- 238000004891 communication Methods 0.000 description 12
- 239000012530 fluid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Lift Valve (AREA)
Abstract
一种可提高密封性能的气控阀，包括阀体，在阀体两侧分别设有阀门进口和阀门出口，在阀体上表面设有与阀门进口和阀门出口连通的连通通道，在阀门进口或阀门出口对应连通通道一端设有阀座，在阀体上表面安装气动执行机构，在气动执行机构与阀体之间安装封堵垫，所述封堵垫周围与所述阀体和气动执行机构之间密封，在封堵垫上表面对应阀座位置连接封堵垫压盖，所述气动执行机构的气缸缸杆与所述封堵垫压盖连接，本实用新型解决了气动球阀密封胶圈的磨损导致密封性能下降的问题以及气控阀腐蚀性流体与阀杆及气动执行机构接触导致气动执行机构损坏的问题，结构简单，成本低，密封性能好，动作可靠，抗腐蚀，延长了阀门的使用寿命。
, The closure of the valve body is connected with the closure of the valve body by a button, and the button has a button key to control the valve body to move upwards to control the valve body to move upwards, so that the closure of the valve body can be controlled smoothly.
Description
Technical Field
The utility model relates to a valve, in particular to a pneumatic control valve capable of improving sealing performance.
Background
Because of the characteristics of rapidness, reliability, automatic control and the like, the pneumatic ball valve is widely applied to the fluid control in the industrial field, such as the fields of petroleum and natural gas, chemical industry, electric power, metallurgy, papermaking, printing, cold chain and the like. The pneumatic ball valve comprises a pneumatic ball valve body, a ball body, a valve seat, an actuating mechanism, an electromagnetic valve and other parts, and is used in the double-acting pneumatic ball valve for switching the flow direction of an air source and controlling the movement direction of a piston.
The working principle of the pneumatic ball valve is as follows: when the solenoid valve coil is electrified, the solenoid valve commutates, gas flows into the air inlet of the solenoid valve, then flows in from the air inlet of the pneumatic head, and pushes the piston to perform corresponding action. The existing ball valve often uses a soft sealing ball valve in a sealing mode between a steering rod and a valve body, the steering rod is made of a metal material, a sealing ring matched with the steering rod is made of an elastic nonmetallic material, the sealing performance of the sealing is good, but because nonmetallic materials are easy to wear due to metal friction and nonmetallic friction, the ball valve is not tightly sealed after being used for a period of time, and the service life is shortened.
The pneumatic control valve consists of a valve body, a valve seat, a valve rod driven by a cylinder rod in a pneumatic actuating mechanism and a valve core arranged at the lower end of the valve rod, and when the cylinder rod moves downwards, the valve core presses down the valve seat to realize the closing function of the valve; when the cylinder rod moves upwards, the valve core moves upwards along with the valve rod to separate from the valve core, so that the valve opening function is realized. A problem with such pneumatically controlled valves is that when the valve is closed, the fluid fills the valve inlet, including the cylinder rod portion, when the fluid is a corrosive medium. The lubrication of the sealing part of the cylinder rod can be damaged, so that the sealing part of the cylinder body is invalid, and corrosive fluid enters the cylinder, so that the cylinder is damaged, and the pneumatic control valve is damaged.
Disclosure of utility model
The utility model aims to provide a pneumatic control valve capable of improving sealing performance 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 pneumatic control valve capable of improving sealing performance includes valve body, valve inlet and valve outlet set on two sides of the valve body, communication channel set on the upper surface of the valve body and communicated with the valve inlet and the valve outlet, valve seat set on one end of the valve inlet or the valve outlet corresponding to the communication channel, pneumatic executing mechanism set on the upper surface of the valve body, sealing pad set between the pneumatic executing mechanism and the valve body, sealing between the periphery of the sealing gasket and the valve body and between the sealing gasket and the pneumatic actuating mechanism, connecting a sealing gasket gland at the position, corresponding to the valve seat, of the upper surface of the sealing gasket, connecting a cylinder rod of the pneumatic actuating mechanism with the sealing gasket gland, and enabling the sealing gasket gland to move downwards under the driving of the cylinder rod of the pneumatic actuating mechanism to press the sealing gasket to the valve seat, blocking the communication channel and closing the valve; the sealing gasket gland is driven by a cylinder rod of the pneumatic actuating mechanism to move upwards to enable the sealing gasket to move upwards to be separated from the valve seat, so that the communication channel is opened, and the valve is opened.
Further, at least two chucks which are uniformly distributed along the circumferential direction and take the center of the sealing gasket gland as the center of a circle are arranged on the upper surface of the sealing gasket, through holes are formed in the sealing gasket gland at positions corresponding to the chucks, and the chucks are clamped in the corresponding through holes to connect the sealing gasket gland with the sealing gasket. The installation is convenient, and the disassembly and the assembly are convenient.
Further, an annular bulge is arranged at the contact part of the lower surface of the plugging pad and the valve body, an annular groove is arranged at the position, corresponding to the annular bulge, of the upper surface of the valve body, and the annular bulge is in convex-concave fit with the corresponding annular groove so as to improve the sealing effect.
Further, the plugging pad body is straight, so that the plugging pad is convenient to process, the cost is reduced, and the service life is prolonged.
Further, a connecting body with a hollow inside is arranged between the valve body and the plugging pad, and the plugging pad gland is positioned at the hollow part of the connecting body so as to be convenient for assembly.
Further, the cylinder rod of the pneumatic actuating mechanism is connected with the upper surface of the sealing gasket gland through threads.
Further, the pneumatic actuating mechanism, the plugging pad and the valve body are connected through connecting bolts penetrating up and down, so that the assembly is convenient, and the sealing performance is improved.
Further, three valve outlets are respectively communicated with the communication channel, so that proper interfaces are selected or serial connection of the interfaces is realized according to actual working conditions.
Further, the chuck is mushroom-head-shaped.
Further, the upper surface of the plugging pad gland is provided with a connecting column, the connecting column is provided with threads, and the connecting column is connected with the cylinder rod through the threads.
Compared with the prior art, the utility model has the beneficial effects that: the sealing gasket is driven to move up and down through the pneumatic actuating mechanism to enable the sealing gasket to block and open the communication channel, so that the valve is opened and closed, the pneumatic actuating mechanism is isolated from fluid in the valve opening and closing process, the problem that the sealing performance is reduced due to abrasion of the sealing rubber ring of the pneumatic ball valve and the problem that the pneumatic actuating mechanism is damaged due to contact of corrosive fluid of the pneumatic ball valve, the valve rod and the pneumatic actuating mechanism are thoroughly solved, the sealing gasket body is straight, the sealing gasket body is simple in structure, convenient to process, low in cost, convenient to install, long in service life, good in sealing performance, capable of realizing automatic control by being matched with the electromagnetic valve, rapid and reliable in action, corrosion-resistant, and capable of prolonging the service life of the valve.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described below.
Fig. 1 is a front view of a pneumatic valve of the present embodiment, which can improve sealing performance.
Fig. 2 is a cross-sectional view A-A of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is an isometric view of a pneumatic valve with improved sealing performance according to this embodiment.
Fig. 5 is a schematic view of the continuous structure of the sealing gland and the plugging pad in fig. 1.
In the figure: the valve comprises a valve body-1, a valve inlet-2, a plugging pad-3, a connector-4, a cylinder rod-5, a pneumatic actuator-6, a plugging pad gland-7, a communication channel-8, a valve outlet-9, a valve seat-10, a connecting bolt-11, an annular groove-101, an annular protrusion-301, a chuck-302, a through hole-701 and a connecting column-702.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1-5, an embodiment of the utility model provides a pneumatic control valve capable of improving sealing performance, which comprises a valve body 1, a sealing pad 3, a connecting body 4 and a pneumatic actuating mechanism 6, wherein the sealing pad body is straight, the pneumatic actuating mechanism 6, the connecting body 4, the sealing pad 3 and the valve body 1 are arranged up and down and are connected through connecting bolts 11 which penetrate through each other up and down, the four connecting bolts 11 are positioned at four corners, the periphery of the sealing pad 3 is sealed with the valve body 1, and the inside of the connecting body 4 is of a hollow structure.
The valve body 1 is provided with a valve inlet 2 and a valve outlet 9 on two sides, the upper surface of the valve body 1 is provided with a communication channel 8 communicated with the valve inlet and the valve outlet, the upper port of the valve outlet 9 corresponding to the communication channel 8 is provided with a valve seat 10, the valve seat 10 and the valve body 1 are of an integrated structure, the upper surface of the plugging pad 3 is provided with a plugging pad gland 7 corresponding to the valve seat position, the plugging pad gland 7 is connected with a cylinder rod 5 of the pneumatic actuator 6, and the plugging pad gland 7 is positioned in a hollow part of the connector 4. When the cylinder rod 5 in the pneumatic actuator 6 moves downwards, the sealing gasket gland 7 moves downwards under the drive of the pneumatic actuator 6 to press down the sealing gasket 3 at the position corresponding to the valve seat 10 and block the communication channel 8, so that the valve is closed; when the cylinder rod 5 in the pneumatic actuator 6 moves upwards, the sealing gasket gland 7 moves upwards under the drive of the pneumatic actuator 6 to enable the sealing gasket 3 to move upwards to be separated from the valve seat 10 corresponding to the valve seat 10, the communication channel 8 is opened, and the valve is opened.
The upper surface of the plugging pad gland 7 is provided with a connecting column 702 which is integrated with the plugging pad gland, threads are arranged on the upper portion of the connecting column 702, and the cylinder rod 5 of the pneumatic actuating mechanism 6 is connected with the plugging pad connecting column 702 through threads.
Four mushroom head-shaped chucks 302 are arranged on the upper surface of the plugging pad 3, the chucks 302 are uniformly distributed along the circumferential direction by taking the center of the plugging pad gland 7 as the center of a circle, through holes 701 are formed in positions of the plugging pad gland 7 corresponding to the chucks 302, the chucks 302 are clamped in the corresponding through holes 701, and the plugging pad gland 7 and the plugging pad 3 are connected together corresponding to the valve seat 10.
Further, an annular protrusion 301 is arranged at the contact position of the lower surface of the plugging pad 3 and the valve body 1, an annular groove 101 is arranged on the upper surface of the valve body 1 corresponding to the annular protrusion 301, and the annular protrusion 301 is in convex-concave fit with the corresponding annular groove 101 so as to improve the sealing effect between the plugging pad 3 and the valve body 1.
Further, three valve outlets 9 are provided, one of which is located at the left side of the valve body 1, and the other two of which is located at the front and rear sides of the valve body 1, and the three valve outlets 9 are communicated with the communication channel 8 through an outlet connection port 901, so that interfaces in a proper direction are selected according to actual working conditions, and modularized serial connection is realized.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420451911.5U CN222026387U (en) | 2024-03-08 | 2024-03-08 | Pneumatic control valve capable of improving sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420451911.5U CN222026387U (en) | 2024-03-08 | 2024-03-08 | Pneumatic control valve capable of improving sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222026387U true CN222026387U (en) | 2024-11-19 |
Family
ID=93438047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420451911.5U Active CN222026387U (en) | 2024-03-08 | 2024-03-08 | Pneumatic control valve capable of improving sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222026387U (en) |
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2024
- 2024-03-08 CN CN202420451911.5U patent/CN222026387U/en active Active
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