CN201836486U - Indirect-action type pressure regulator - Google Patents
Indirect-action type pressure regulator Download PDFInfo
- Publication number
- CN201836486U CN201836486U CN2010205938519U CN201020593851U CN201836486U CN 201836486 U CN201836486 U CN 201836486U CN 2010205938519 U CN2010205938519 U CN 2010205938519U CN 201020593851 U CN201020593851 U CN 201020593851U CN 201836486 U CN201836486 U CN 201836486U
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- cage type
- valve
- air
- pressure governor
- 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
Links
Images
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses an indirect-action type pressure regulator, wherein the structure is simplified, and the flow capacity of air flow in a valve body can be improved. The pressure regulator comprises a diaphragm, an air inlet chamber, an air outlet chamber and a valve seat that are arranged in the valve body and also comprises a cage type sleeve body that is positioned under the diaphragm and is fixedly connected with the valve body; an adjustable sealed channel is formed by the end surface of the top end of the cage type sleeve body and the lower surface of the diaphragm; the lower end of the cage type sleeve body is positioned in the valve seat and is provided with a soft sealing ring, wherein the soft sealing ring and the valve seat form a soft sealing pair; the air inlet chamber passes through a through hole in the cage type sleeve body and the adjustable sealed channel and then is communicated with the air outlet chamber; and the part of the diaphragm, positioned outside the cage type sleeve body, is supported by a supporting structure arranged under the diaphragm. As a valve core is not adopted, the structure is simplified; with the adoption of the cage type sleeve body, the air in the air inlet chamber can flow into the air outlet chamber by the match of the cage type sleeve body and the diaphragm, thereby improving the flow capacity of the air flow obviously.
Description
Technical field
The utility model relates to a kind of indirect acting type pressure governor, especially relates to a kind of gas transmission ﹠ distribution and send the indirect acting type of using in system pressure governor.
Background technique
In recent years, along with the high speed development of Chinese national economy, the convection cell transmission ﹠ distribution send the requirement of equipment more and more higher.The high speed development of China's gas usefulness gas particularly, to the operation of relevant device whether steadily, negotiability and volume size requirements be higher, requires lower to equipment failure rate.
The structure of conventional indirect acting type pressure governor generally comprises the diaphragm of valve body and valve inner setting, the diaphragm epicoele, diaphragm cavity of resorption and the cage type cover that is arranged on diaphragm cavity of resorption below, operated by rotary motion has spool in the described cage type cover, the cage type cover is provided with the air outlet hole that is communicated with outlet chamber, the gas of controlling in the air-inlet cavity by moving up and down of spool flows into outlet chamber from the air outlet hole on the cage type cover, because the outer wall area of cage type cover is limited, therefore the air outlet hole that is provided with on it is less, and this has just limited the gas communication ability.For example Chinese patent 200720078869.3 discloses a kind of indirect acting type pressure governor, this kind pressure governor inner valve body structure complexity, and very inconvenience of assembling and maintenance, the airflow ability of valve inner is less.
By above analysis as can be known, though conventional indirect acting type pressure governor can play the pressure regulation effect, but because conventional pressure governor is in order to increase negotiability, just volume need be increased, this just causes in narrow and small place and requirement when having big negotiability, and conventional pressure governor can't satisfy actual usage requirement.
The model utility content
But the technical problem that the utility model solves provides a kind of simplified structure and improves the indirect acting type pressure governor of valve inner airflow ability.
The technological scheme that its technical problem that solves the utility model adopts is: the indirect acting type pressure governor, comprise diaphragm, air-inlet cavity, outlet chamber and valve seat in the valve body, also comprise the cage type body that is positioned at described diaphragm below and is connected with valve body, the top end face of cage type body and the lower surface of diaphragm form the adjustable sealing passage; The lower end of above-mentioned cage type body is positioned at valve seat, and cage type body lower end is provided with the soft seal circle that forms the soft seal pair with valve seat; Air-inlet cavity is communicated with outlet chamber by the interior bone and the adjustable sealing passage of cage type body successively; Diaphragm is positioned at the part in the cage type body outside by the support construction supports that is arranged on the diaphragm below.
Further be: described supporting structure is the annular disk body that is arranged on cage type body upper end.
Further be: described annular disk body is provided with one group of valve port, and described valve port is communicated with outlet chamber with diaphragm.
Further be: described valve port is circumferentially uniform along the cage type body.
Further be: the outer rim of described annular disk body links to each other with valve body.
Further be: the outer rim of described annular disk body is provided with the soft seal circle that forms the soft seal pair with valve body.
Further be: the top end face of described cage type body is an arc surface.
The beneficial effects of the utility model are: compared with prior art, the utility model is owing to saved spool, make structure be simplified, and, when voltage regulator operation of the present utility model, gas flows to diaphragm through the through hole of air-inlet cavity, cage type body, and air-flow turns to behind diaphragm and flows directly into outlet chamber, and the gas communication ability significantly improves.
Description of drawings
Fig. 1 is the schematic representation of the valve inner of indirect acting type pressure governor of the present utility model;
Fig. 2 is the enlarged view of a-quadrant among Fig. 1;
Fig. 3 is the schematic representation of regulator and pilot valve;
Fig. 4 is the view of the B direction of Fig. 3;
Fig. 5 is cage type body and annular disk body annexation schematic representation;
Fig. 6 is the schematic representation of annular disk body and valve port.
Be labeled as among the figure: 1-through hole, 2-valve port, 3-annular disk body, 5-valve body, 6-soft seal circle, 7-cage type body, the 10-diaphragm, 13-positioning shaft, 14-Returnning spring, 19-signal tube, 22-pilot valve, 23-flow controller, the 31-outlet chamber, 32-air-inlet cavity, 33-valve seat, 34-end face, 35-epicoele.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Extremely shown in Figure 6 as Fig. 1, indirect acting type pressure governor of the present utility model, comprise diaphragm 10, air-inlet cavity 32, outlet chamber 31 and valve seat 33 in the valve body 5, also comprise the cage type body 7 that is positioned at described diaphragm 10 belows and is connected with valve body 5, the top end face 34 of cage type body 7 forms the adjustable sealing passage with the lower surface of diaphragm 10; The lower end of above-mentioned cage type body 7 is positioned at valve seat 33, and cage type body 7 lower ends are provided with the soft seal circle 6 that forms the soft seal pair with valve seat 33; Air-inlet cavity 32 is communicated with outlet chamber 31 by the interior bone 1 and the adjustable sealing passage of cage type body 7 successively; Diaphragm 10 is positioned at the part in cage type body 7 outsides by the support construction supports that is arranged on diaphragm 10 belows.Adopt said structure, the part that diaphragm 10 is positioned at cage type body 7 outsides directly is communicated with outlet chamber 31.In addition, same as the prior art is, air-inlet cavity 32 of the present utility model links to each other with signal tube 19, and signal tube 19 links to each other with the suction port of the flow controller 23 that is arranged on the valve body outside, an air outlet of flow controller links to each other with the epicoele 35 of diaphragm 10, and another outlet links to each other with pilot valve 22; Diaphragm 10 is driven jointly by the Returnning spring 14 of top positioning shaft 13 inside and the pressure difference of air-inlet cavity 32 and epicoele 35, can move up and down.For the damage to diaphragm of the top end face that reduces the cage type body, the top end face 34 of described cage type body 7 is an arc surface.
When indirect acting type pressure governor of the present utility model is in closed condition, form the soft seal pair between the top end face 34 of cage type body 7 and the lower surface of diaphragm 10, at this moment, above-mentioned adjustable sealing passage is in closed condition, and gas can't flow into outlet chamber 31 by the through hole 1 of air-inlet cavity 32 through cage type body 7 inside.When indirect acting type pressure governor of the present utility model is in user mode, gas in the through hole 1 of cage type body 7 promotes diaphragm 10 and rises, and then the lower surface of diaphragm 10 is separated with the top end face 34 of cage type body 7, and then make above-mentioned adjustable sealing passage be in opening state, air-inlet cavity 32 is communicated with outlet chamber 31 by through hole 1 and adjustable sealing passage, when the pressure in the outlet pipe that outlet chamber 31 connects reduces, pilot valve 22 feeds back to this signal the epicoele 35 of diaphragm 10 through flow controller 23, the pressure of the epicoele 35 of diaphragm 10 descends thereupon, at this moment, the following cavity pressure of diaphragm 10 (being the gas pressure in the through hole 1 of cage type body 7) is greater than upper cavity pressure, make diaphragm 10 move upward, and then with the distance increase between the top end face of diaphragm 10 and cage type body 1, make that more gases flow to outlet chamber 31 through the through hole 1 and the adjustable sealing passage of cage type body 7, with the pressure in the outlet pipe of these additional outlet chamber 31 connections.Otherwise, when the pressure in the outlet pipe that outlet chamber 31 connects raises, the pressure of the epicoele 35 of diaphragm 10 will rise, and then cause diaphragm 10 to move downward, distance between the top end face 34 of diaphragm 10 and cage type body 7 reduces, the gas that flows through the adjustable sealing passage reduces, and the pressure in the outlet pipe that outlet chamber 31 connects decreases.
The above-mentioned supporting structure that is used to support diaphragm 10 can be for being arranged on the support block of valve inner, and preferred implementation is: described supporting structure is the annular disk body 3 that is arranged on cage type body 7 upper ends.Because the area of diaphragm 10 is bigger, adopt annular disk body 3 to play the good supporting effect to diaphragm 10, when pressure governor is in closed condition, because diaphragm 10 is subjected to the effect of Returnning spring 14 and produces the trend of distortion downwards, can guarantee to form between the top end face 34 of diaphragm 10 and cage type body 7 good soft seal pair like this, stop gas communication, but can make diaphragm 10 unbalance stress, so need support construction supports diaphragm 10, avoid it owing to unbalance stress damages, annular disk body 3 then can effectively avoid diaphragm 10 to damage owing to unbalance stress up and down.
In order further to be convenient to gas communication, increase the gas communication ability, described annular disk body 3 is provided with one group of valve port 2, and described valve port 2 is communicated with outlet chamber 31 with diaphragm 10.Like this, gas can flow into outlet chamber 31 through valve port 2.
For the even and stable gas pressure of gas communication that makes valve inner, described valve port 2 is circumferentially uniform along cage type body 7.
On the basis of the above, can better support diaphragm in order to make annular disk body, the outer rim of described annular disk body 3 links to each other with valve body 5, and when pressure governor of the present utility model was in closed condition, diaphragm 10 can be subjected to the excellent support of the card of annular disk body 3.
Further be, guarantee good air-tightness in order to make valve inner, the outer rim of described annular disk body 3 is provided with the soft seal circle 6 that forms the soft seal pair with valve body 5.
Claims (7)
1. indirect acting type pressure governor, comprise diaphragm (10), air-inlet cavity (32), outlet chamber (31) and valve seat (33) in the valve body (5), it is characterized in that: also comprise the cage type body (7) that is positioned at described diaphragm (10) below and is connected with valve body (5), the top end face (34) of cage type body (7) forms the adjustable sealing passage with the lower surface of diaphragm (10); The lower end of above-mentioned cage type body (7) is positioned at valve seat (33), and cage type body (7) lower end is provided with the soft seal circle (6) that forms the soft seal pair with valve seat (33); Air-inlet cavity (32) is communicated with outlet chamber (31) by the interior bone (1) and the adjustable sealing passage of cage type body (7) successively; Diaphragm (10) is positioned at the part in cage type body (7) outside by the support construction supports that is arranged on diaphragm (10) below.
2. indirect acting type pressure governor as claimed in claim 1 is characterized in that: described supporting structure is for being arranged on the annular disk body (3) on the cage type body (7).
3. indirect acting type pressure governor as claimed in claim 2 is characterized in that: described annular disk body (3) is provided with one group of valve port (2), and described valve port (2) is communicated with outlet chamber (31) with diaphragm (10).
4. indirect acting type pressure governor as claimed in claim 3 is characterized in that: described valve port (2) is circumferentially uniform along cage type body (7).
5. indirect acting type pressure governor as claimed in claim 3 is characterized in that: the outer rim of described annular disk body (3) links to each other with valve body (5).
6. indirect acting type pressure governor as claimed in claim 5 is characterized in that: the outer rim of described annular disk body (3) is provided with the soft seal circle (6) that forms the soft seal pair with valve body (5).
7. indirect acting type pressure governor as claimed in claim 1 is characterized in that: the top end face (34) of described cage type body (7) is an arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205938519U CN201836486U (en) | 2010-11-05 | 2010-11-05 | Indirect-action type pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205938519U CN201836486U (en) | 2010-11-05 | 2010-11-05 | Indirect-action type pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836486U true CN201836486U (en) | 2011-05-18 |
Family
ID=44006590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205938519U Expired - Fee Related CN201836486U (en) | 2010-11-05 | 2010-11-05 | Indirect-action type pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489811A (en) * | 2017-09-30 | 2017-12-19 | 贵州新安航空机械有限责任公司 | A kind of oxygen concentration solenoid relay valve element |
-
2010
- 2010-11-05 CN CN2010205938519U patent/CN201836486U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489811A (en) * | 2017-09-30 | 2017-12-19 | 贵州新安航空机械有限责任公司 | A kind of oxygen concentration solenoid relay valve element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202302220U (en) | High-precision pneumatic proportional pressure valve | |
| CN204477370U (en) | A kind of motor regulated valve | |
| CN201836486U (en) | Indirect-action type pressure regulator | |
| CN208417549U (en) | A kind of Pneumatic emptying valve | |
| CN201486862U (en) | Internal pressure ratio adjusting device of screw type compressor | |
| SG175410A1 (en) | Pressure regulating device, compressed air supply system and motor vehicle | |
| CN114922994B (en) | Air-driven type sealing vacuum valve | |
| CN201196339Y (en) | Valve rod balancing mechanism of gas pressure regulator | |
| CN201715055U (en) | Adjustable non-return pressure relief valve | |
| CN202327236U (en) | Multiway adjustable intelligent fuel gas control valve | |
| CN201517504U (en) | Controllable structure of back pressure gas quality exchange | |
| CN201487553U (en) | High-pressure axial flow type gas pressure regulator | |
| CN208125332U (en) | Battery case air-leakage test aerator | |
| CN208964949U (en) | A kind of liquid material discharger | |
| CN202402700U (en) | Improved two-position three-way electromagnetic valve | |
| CN201715037U (en) | Tire inflation valve | |
| CN205478306U (en) | Vacuum set | |
| CN107461538B (en) | Cooling water bypass valve of diesel engine | |
| CN201599465U (en) | Air pressure difference adjusting device | |
| CN211412363U (en) | Separator | |
| CN109764148A (en) | Indirect-action type pressure regulator | |
| CN218035195U (en) | Novel energy-saving flowmeter group | |
| CN210715000U (en) | Air inlet throttle valve capable of controlling air flow in real time to control surge point of air compressor | |
| CN104604527B (en) | A kind of asparagus aerobic fementation system of outside control pressure and temperature | |
| CN201513613U (en) | Automatic air intake and exhaust valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20161105 |