CN2410506Y - Permanent pressure control valve - Google Patents
Permanent pressure control valve Download PDFInfo
- Publication number
- CN2410506Y CN2410506Y CN 00216470 CN00216470U CN2410506Y CN 2410506 Y CN2410506 Y CN 2410506Y CN 00216470 CN00216470 CN 00216470 CN 00216470 U CN00216470 U CN 00216470U CN 2410506 Y CN2410506 Y CN 2410506Y
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- CN
- China
- Prior art keywords
- diaphragm
- valve
- valve body
- pressure
- valve rod
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a permanent magnetic pressure control valve. A permanent magnetic block, a compression spring, and the improvement of an upper valve rod are installed in a valve body, and the utility model also comprises a diaphragm and a lower valve rod, wherein, the diaphragm is sealed and connected between an upper valve body and a lower valve body and is contacted with a supporting board, the lower valve rod is fastened on the diaphragm and the supporting board and is linked following the diaphragm and the supporting board, the improvement is the permanent magnetic block which is installed between a supporting board inner cavity and the diaphragm, the upper part of the upper valve body is connected with a pressure adjusting seat, a compression spring is arranged between the supporting board and the pressure adjusting seat, a valve seat of which both ends are provided with valve openings is arranged on the lower valve body, and the lower end of the lower valve rod is provided with a plain cushion. The utility model can be used for the over pressure protection and the under pressure protection of a low small pressure gas system. The utility model has high reliability, convenient adjustment, and obvious improved manufacturability.
Description
The utility model relates to a kind of safety valve, particularly a kind of magneto pressure controlled valve that is used for overvoltage or under-voltage protection.
Disclosed ZL9423857.3 magneto pressure controlled valve, being used in has the satisfied overvoltage and the technique effect of under-voltage protection in the gaspipe line system, but its shortcoming is that 1. permanent magnet is far away from sealing valve port distance, magnetic attraction a little less than; 2. spring force is difficult for regulating, and is not easy to be complementary with the standard coal atmospheric pressure; The structure of 3. fastening diaphragm and supporting plate is complicated, and valve port and valve body be connected as a single entity, and technology and assembly performance are relatively poor; 4. the garden cylinder that utilizes lower valve rod is as the overvoltage pressurize, and it is not high enough that its sensitivity seems sometimes.Because the combined influence of above-mentioned shortcoming, make the control valve debug difficulties, operational safety is relatively poor under, the minute-pressure condition low at coal gas, and assembling, manufacturability are all undesirable, and product assembling first-time qualification rate is lower.
The utility model purpose provides follow-on magneto pressure controlled valve that a kind of more described disclosed control valve reliable performance is stable, debugging is simple and easy, manufacturability is good.
The utility model purpose is to realize like this, promptly improve existing permanent magnet, the pressure spring of including, upper valve rod, the diaphragm that with supporting plate contact, fastening diaphragm and the supporting plate of sealing-in between upper valve body and following valve body and with the magneto pressure controlled valve of the lower valve rod of diaphragm interlock, improvement place is that 1. permanent magnet is mounted between supporting plate inner chamber and the diaphragm, diaphragm is strengthened in the magnetic effect of valve port place, and sealing reliability is improved during decompression; 2. be connected with pressure regulating seat at the upper valve body internal upper part, be provided with pressure spring between supporting plate and the pressure regulating seat, make diaphragm more easily debug to such an extent that be complementary with the coal gas standard pressure in the sealing force at valve port place; 3. be provided with the valve seat that there is valve port at two ends at the following corresponding diaphragm medium position of valve body, promptly valve port separates with valve body, to improve manufacturing process; 4. be provided with plain cushion in the lower valve rod lower end, remove the structure of original lower valve rod garden post face seal valve port, also promptly eliminated surface friction drag, the control valve overvoltage protection is quick on the draw reliably.
The utility model is applied to low, and the overvoltage and the under-voltage protection of minute-pressure gas supply system are compared with existing control valve; overvoltage and under-voltage reliability height, debugging is convenient, has simplified mechanical structure; make and assembly process process be improved significantly, improved quality of product and productivity.
Give to describe in detail below in conjunction with accompanying drawing.
Structural representation when Fig. 1 closes for the utility model valve port.
Design a kind of magneto pressure controlled valve, keep original valve gap (13), be installed in the permanent magnet in the valve body, pressure spring, the diaphragm that with supporting plate contact (7) of sealing-in between upper valve body (15) and following valve body (6), fastening diaphragm and supporting plate and with the lower valve rod of diaphragm interlock, the similar structure of upper valve rod (14) that is connected with lower valve rod by bearing pin (16) etc., improvement place is that permanent magnet (10) is installed between supporting plate (9) inner chamber and the diaphragm, boss (101) by lower valve rod (1) top and nut (17) are simultaneously with supporting plate, permanent magnet, diaphragm compresses together, this structure is more many than the designs simplification of disclosed fixedly diaphragm, during use control valve is connected in the gaspipe line, manually be pulled upwardly upper valve rod, coal gas is promptly flowed out by outlet port P2 by valve port (5) by the P1 of inlet.Be provided with two ends at the following corresponding diaphragm medium position of valve body the valve seat of valve port (5) (8) is arranged; Be provided with plain cushion (4) in the lower valve rod lower end; Be connected with pressure regulating seat (12) at the upper valve body internal upper part, be provided with pressure spring (11) between supporting plate and the pressure regulating seat; Regulate the upper and lower position of pressure regulating seat, promptly the can regulate diaphragm is to the valve port impacting force, and adapting with gas pressure, temporary transient when under-voltage when gas pressure, under the acting in conjunction of magnetic attraction and spring force, diaphragm decline contacts with valve port, and control valve is closed.After gas pressure is normal, manual again upper valve rod, coal gas can normally circulate.When the temporary transient overvoltage of gas pressure, diaphragm can drive lower valve rod and rise, and contacts closed control valve until plain cushion with the valve port of valve seat (8) lower end, and after gas pressure was normal, lower valve rod can descend automatically, and valve port is opened, and coal gas normally circulates.In order to make the sealing of valve port place more reliable, so seat material can be made with magnetic material.Automatically it is slow to descend as lower valve port, and equally manually upper valve rod is opened the valve port that connects down.Pressure spring can be respectively the left and right spring that revolves by two to be formed, in order to the stability that improves regulation and control pressure.For ease of assembling and maintenance,, and seal by sealing gasket (2) so plug (3) is equipped with in the corresponding lower valve rod of valve body lower end position down.
Claims (3)
1. the magneto pressure controlled valve of permanent magnet, pressure spring, upper valve rod is installed in the valve body, it also includes the diaphragm that with supporting plate contact (7) of sealing-in between upper valve body (15) and following valve body (6), fastening diaphragm and supporting plate and with the lower valve rod (1) of diaphragm interlock, it is characterized in that permanent magnet (10) is installed between supporting plate (9) inner chamber and the diaphragm; Be connected with pressure regulating seat (12) at the upper valve body internal upper part, be provided with pressure spring (11) between supporting plate and the pressure regulating seat; Be provided with two ends at the following corresponding diaphragm medium position of valve body the valve seat of valve port (5) (8) is arranged; Be provided with plain cushion (4) in the lower valve rod lower end.
2. by the described magneto pressure controlled valve of claim 1, it is characterized in that seat material is a magnetic material.
3. by the described magneto pressure controlled valve of claim 1, it is characterized in that pressure spring is respectively the left and right spring that revolves by two and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00216470 CN2410506Y (en) | 2000-02-15 | 2000-02-15 | Permanent pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00216470 CN2410506Y (en) | 2000-02-15 | 2000-02-15 | Permanent pressure control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2410506Y true CN2410506Y (en) | 2000-12-13 |
Family
ID=33582209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00216470 Expired - Fee Related CN2410506Y (en) | 2000-02-15 | 2000-02-15 | Permanent pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2410506Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297276A (en) * | 2011-04-12 | 2011-12-28 | 李家聪 | Permanent-magnetic master pulse valve |
| CN105114690A (en) * | 2015-09-12 | 2015-12-02 | 泰州市龙瑞阀业有限公司 | Pedal type depth measuring self-closing valve |
| CN107044556A (en) * | 2016-08-17 | 2017-08-15 | 海南广天恒科技发展有限公司 | Pessimistic securit is switched |
-
2000
- 2000-02-15 CN CN 00216470 patent/CN2410506Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297276A (en) * | 2011-04-12 | 2011-12-28 | 李家聪 | Permanent-magnetic master pulse valve |
| CN105114690A (en) * | 2015-09-12 | 2015-12-02 | 泰州市龙瑞阀业有限公司 | Pedal type depth measuring self-closing valve |
| CN107044556A (en) * | 2016-08-17 | 2017-08-15 | 海南广天恒科技发展有限公司 | Pessimistic securit is switched |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |