CN2630599Y - Diaphragm-direct-action type reducer - Google Patents
Diaphragm-direct-action type reducer Download PDFInfo
- Publication number
- CN2630599Y CN2630599Y CN 03264595 CN03264595U CN2630599Y CN 2630599 Y CN2630599 Y CN 2630599Y CN 03264595 CN03264595 CN 03264595 CN 03264595 U CN03264595 U CN 03264595U CN 2630599 Y CN2630599 Y CN 2630599Y
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- CN
- China
- Prior art keywords
- valve
- diaphragm
- flap
- valve seat
- pressure
- 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 is a diaphragm direct effect type pressure reducing pressure valve, consisting of a diaphragm (1) and a valve clack (2), and the diaphragm (1) connects with the valve clack (2) directly. A small hole (4) is opened on a valve body which is between the lower direction cavity of the diaphragm (1) and a pressure reducing valve export (3). Under the mutual effect of the diaphragm (1) and the valve clack (2), the valve back keeps certain pressure. The utility model provides a direct effect type reducing pressure valve which is simple in structure, low in cost, large in suitable import pressure range, difficult in block. According to different mediums, such as air, water, oil, coal gas, etc, using different valve clack, one valve can have multi-purpose.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of reduction valve.
Background technique
At present, the reduction valve of using in the industrial pipeline, as Piston reducing valve, its diaphragm does not directly contact with flap, be by medium in intermediate flow, under the effect of piston and pilot valve, diaphragm and main valve flap interact, and play the effect of decompression.This reduction valve has several significant disadvantages: complex structure, and cost cost height, and when inlet pressure is unbalanced, the piston cisco unity malfunction, thus causing the valve cisco unity malfunction, the seal ring between main valve and the pilot valve easily stops up in addition, and easy-maintaining not.
Summary of the invention
The utility model has overcome existing structure of relief pressure valve complexity, and the cost height requires height to inlet pressure during work, and susceptible to plugging shortcoming, provides a kind of simple in structure, and cost is low, and the covered import pressure range is wide, and not susceptible to plugging Directacting reducing valve.
In order to achieve the above object, reduction valve of the present utility model has diaphragm and flap, and diaphragm directly is connected with flap.On the valve body between diaphragm lower cavity and the reduction valve outlet, have aperture.Diaphragm upper surface is connected with Regulation spring, and the flap lower surface is connected with main spool spring.Connect by valve seat between the inlet/outlet of reduction valve, import is connected with the end opening of valve seat, and outlet is connected with the suitable for reading of valve seat, and the flap lower end is positioned at the below of valve seat, and the diameter of flap lower end has sealing surface greater than the internal diameter of valve seat between flap lower end and the valve seat end opening.Sealing surface can be a conical surface.Diaphragm is a stainless steel.
Reduction valve of the present utility model is compared with Piston reducing valve, has omitted mechanisms such as piston, pilot valve, and is simple in structure, cost is low, and is easy to maintenance, according to the difference of medium, as: air, water, oils, coal gas etc., adopt different flaps, thus can multi-purpose valve.
Description of drawings
Fig. 1 represents the utility model embodiment's structure.
The 1--diaphragm; The 2--flap; The 3--outlet; The 4--aperture; The 5--Regulation spring; The 6--main spool spring; The 7--valve seat; The 8--import; 9--regulates bolt.
Embodiment
With reference to accompanying drawing, will be described in detail embodiment of the present utility model.A kind of reduction valve has stainless steel diaphragm 1 and flap 2, and diaphragm 1 directly is connected with flap 2.On the valve body between diaphragm 1 lower cavity and the reduction valve outlet 3, have aperture 4.Described diaphragm 1 upper surface is connected with Regulation spring 5, and flap 2 lower surfaces are connected with main spool spring 6.The import 8 of reduction valve and export 3 between connect by valve seat 7, import 8 is connected with the end opening of valve seat 7, exports 3 and is connected with the suitable for reading of valve seat 7.Flap 2 lower ends are positioned at the below of valve seat 7, and the diameter of flap 2 lower ends has conical seal (contact) face greater than the internal diameter of valve seat 7 between flap 2 lower ends and valve seat 7 end openings.
Working medium enters reduction valve by import 8, enter outlet 3 through valve seat 7, when increasing export 3 pressure as needs, turn clockwise and regulate bolt 9, make diaphragm 1 to lower convexity, promoting flap 2 moves downward, the lower end and the slit between the valve seat 7 of flap 2 are increased, MEDIA FLOW inlet/outlet 3, along with the increase of outlet 3 pressure, medium passes through upwards pressuring film plate 8 of aperture 4, under the effect of main spool spring 6, distance between flap 2 and the valve seat 7 diminishes, thereby keeps certain orifice size, thereby keeps certain pressure after making valve.When the pressure of outlet 3 was lower than setting value, under the effect of Regulation spring 5, diaphragm 1 repeated above action to lower convexity, makes the reduction valve outlet pressure remain on the level of setting.
Claims (7)
1, a kind of reduction valve has diaphragm (1) and flap (2), it is characterized in that described diaphragm (1) directly is connected with flap (2).
2, reduction valve according to claim 1 is characterized in that having aperture (4) on the valve body between described diaphragm (1) lower cavity and the reduction valve outlet 1 (3).
3, reduction valve according to claim 1 and 2 is characterized in that described diaphragm (1) upper surface is connected with Regulation spring (5), and described flap (2) lower surface is connected with main spool spring (6).
4, reduction valve according to claim 3 is characterized in that connecting by valve seat (7) between the import (8) of described reduction valve and the outlet (3), and described import (8) is connected with the end opening of valve seat (7), the suitable for reading connection of described outlet (3) and valve seat (7).
5, reduction valve according to claim 4 is characterized in that described flap (2) lower end is positioned at the below of valve seat (7), and the diameter of flap (2) lower end has sealing surface greater than the internal diameter of valve seat (7) between flap (2) lower end and valve seat (7) end opening.
6, reduction valve according to claim 5 is characterized in that the sealing surface between described flap (2) and the valve seat (7) is a conical surface.
7, reduction valve according to claim 1 and 2 is characterized in that described diaphragm (1) is a stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264595 CN2630599Y (en) | 2003-06-18 | 2003-06-18 | Diaphragm-direct-action type reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03264595 CN2630599Y (en) | 2003-06-18 | 2003-06-18 | Diaphragm-direct-action type reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2630599Y true CN2630599Y (en) | 2004-08-04 |
Family
ID=34297393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03264595 Expired - Fee Related CN2630599Y (en) | 2003-06-18 | 2003-06-18 | Diaphragm-direct-action type reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2630599Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322250A (en) * | 2012-03-23 | 2013-09-25 | 上海井和海船用阀门有限公司 | Air reducing valve for ship |
| CN105605275A (en) * | 2016-04-01 | 2016-05-25 | 成都科盛石油科技有限公司 | Natural gas pressure reduction mechanism |
| CN105673900A (en) * | 2016-02-23 | 2016-06-15 | 上海井和海船用阀门有限公司 | Air reducing valve used for ships |
| CN109424772A (en) * | 2017-09-04 | 2019-03-05 | 株式会社捷太格特 | Pressure reducing valve |
-
2003
- 2003-06-18 CN CN 03264595 patent/CN2630599Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322250A (en) * | 2012-03-23 | 2013-09-25 | 上海井和海船用阀门有限公司 | Air reducing valve for ship |
| CN105673900A (en) * | 2016-02-23 | 2016-06-15 | 上海井和海船用阀门有限公司 | Air reducing valve used for ships |
| CN105605275A (en) * | 2016-04-01 | 2016-05-25 | 成都科盛石油科技有限公司 | Natural gas pressure reduction mechanism |
| CN109424772A (en) * | 2017-09-04 | 2019-03-05 | 株式会社捷太格特 | Pressure reducing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040804 Termination date: 20110618 |