CN101078446A - Pressure safety valve - Google Patents
Pressure safety valve Download PDFInfo
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- CN101078446A CN101078446A CN 200610044591 CN200610044591A CN101078446A CN 101078446 A CN101078446 A CN 101078446A CN 200610044591 CN200610044591 CN 200610044591 CN 200610044591 A CN200610044591 A CN 200610044591A CN 101078446 A CN101078446 A CN 101078446A
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- valve
- pad
- valve pad
- stream
- opening
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Abstract
The invention discloses a pressure safety valve, comprising valve body, valve cover set on the port end of said valve body, hollow cavity formed by said valve body and the valve cover, flow inlet path and flow outlet path connected with said hollow cavity respectively, and control device set in the hollow cavity to control connection and disconnection of said flow inlet path and flow outlet path. The control device comprises a valve pad and force device, which can apply force to the valve pad. The valve pad is attached to the port end of flow outlet path in the hollow cavity. The opening direction of said flow inlet path in said hollow cavity is corresponding with the moving direction of said valve pad. By controlling flow outlet path the valve pad realizes connection and disconnection of flow inlet path and flow outlet path. Because the valve pad can be made as large as possible in the range the hollow cavity allows, the force on valve pad can be enlarged so that pressure accuracy of pressure safety valve opening can be improved greatly.
Description
Technical field
The present invention relates to the pressure valve technical field, relate in particular to a kind of seal container that is connected in, when the pressure in the seal container reaches setting value, can open the safety valve of release automatically.
Background technique
The water that is contained in the water heater enclosed space can produce steam through heating, and when air pressure was excessive, the joint of each parts was easy to generate leakage.Especially solar water heater because it is subjected to the glass tube of hotting mask to accept solar energy by being coated with, so too high air pressure can make glass tube break, causes the damage that is difficult to remedy.Known a kind of pressure relief valve, it comprises valve body and valve gap, water inlet path and one go out water passage and form enclosed cavity with described valve body and valve gap respectively and communicate; Control described influent stream road is installed in the described cavity and goes out the control gear that stream connection/disconnection is communicated with, described control gear comprises a valve pad and the force application device that can force in valve pad, this valve pad is posted by into the water path at the opening of described cavity, because the water inlet path all can design smallerly at the opening of described cavity usually, its opening force that valve pad is applied is advanced the restriction of water passage opening size, also can be smaller, thereby the pressure precision of this opening of valves is lower, is not suitable for the following low pressure adjustment of 0.3Mpa.
Summary of the invention
Technical problem to be solved by this invention is: a kind of pressure relief valve is provided, and this valve is with simple structure, and pressure precision is low when having solved opening of valves, is not easy to the technical problem that low pressure is adjusted.
For solving the problems of the technologies described above, technological scheme of the present invention is: pressure relief valve, comprise valve body, and be installed on the valve gap of described valve body openings end, described valve body and valve gap form a sealed hollow; The influent stream road that can communicate with described cavity respectively and go out stream, be installed on the described influent stream of described cavity inner control road and go out the control gear that stream connection/disconnection is communicated with, described control gear comprises a valve pad and the force application device that can force in valve pad, described valve pad is posted by the described opening that goes out stream at described cavity, and described influent stream road is corresponding at the movement direction of the opening direction of described cavity and described valve pad.
As a kind of embodiment, described valve pad comprises and is positioned at the control device that the center region is used to seal out the stream opening, at the sealed department of fringe region cramping between described valve body openings end and valve gap, the transition part that is provided with flexibility between described control device and the sealed department.The material of described valve pad is preferably resilient rubber.
After having adopted technique scheme, the invention has the beneficial effects as follows: because valve pad is posted by out the opening of stream at described cavity, described influent stream road is corresponding at the movement direction of the opening direction of described cavity and described valve pad, valve pad by control the stream opening realize the influent stream road with go out stream be communicated with/disconnect connection, thereby it is not subjected to the restriction of influent stream road in the openings of sizes of described cavity.The pressure of flowing medium passes to the cavity of safety valve in the seal container by the influent stream road, and make it to act on the unlatching end face of valve pad, because valve pad can be done greatly as far as possible in the scope that cavity allows, so the stressed meeting on the valve pad is exaggerated, its area is what times of influent stream road openings of sizes, how many stressed meetings on the valve pad is exaggerated doubly so, thus pressure precision when having improved opening of valves greatly.Because comprising, described valve pad is positioned at the control device that the center region is used to seal out the stream opening, at the sealed department of fringe region cramping between described valve body openings end and valve gap, the transition part that is provided with flexibility between described control device and the sealed department, the flowing medium pressure that is subjected to when control device is during greater than setting pressure, on the one hand, control device moves, and makes the influent stream road and goes out stream and be communicated with, and realizes release; On the other hand, sealed department between described valve body openings end and valve gap, is realized the sealing of valve body openings end and valve gap by cramping, and is simple in structure, safe and reliable.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing is the longitudinal sectional view of the embodiment of the invention.
Embodiment
A kind of pressure relief valve as shown in drawings, comprises valve body 1, the opening end of valve body 1 valve gap 2 that is threaded, and described valve body 1 forms a sealed hollow with valve gap 2; The influent stream road 4 that is connected with seal container communicates with described cavity, goes out stream 5 and also communicates with described cavity.Controlling described influent stream road 4 is installed in the described cavity with the control gear that goes out stream 5 connection/disconnections connection, described control gear comprises a valve pad 3 and the force application device that can force in valve pad 3, described valve pad 3 is posted by the described opening that goes out stream 5 at described cavity, and described influent stream road 4 is corresponding at the movement direction of the opening direction of described cavity and described valve pad 3.
Described valve pad 3 comprises and is positioned at the control device that the center region is used to seal out the stream opening, at the sealed department of fringe region cramping between described valve body openings end and valve gap 2, is provided with flexible transition part between described control device and the sealed department.Described valve pad 3 preferentially selects for use the rubber-like rubber material to make.Elastic material can produce certain deformation when stressed, be convenient to the sealing between link.
Described force application device comprises a double-screw bolt 6 that is connected with the open-top screw thread of described valve gap 2, the pressure spring 7 of a cramping between the control device of described double-screw bolt 6 and described valve pad 3, a guide rod 8, one end of described guide rod 8 is fixed in the control device of valve pad 3, and the other end is arranged in the axial hole of described double-screw bolt 6.Regulate the decrement that double-screw bolt 6 can be regulated pressure spring 7, thereby regulate the cracking pressure of valve pad 3.Because the transition part that is provided with flexibility between the control device of valve pad 3 and the sealed department, in the control device moving process, some swings or twisting may take place in control device, influence the reliability that valve pad 3 is opened or closed.This guide rod 8 can guarantee that the control device of valve pad 3 moves along a definite axis, thereby avoided these factors to the unlatching of valve pad 3 or close the influence of reliability.
Claims (5)
1, pressure relief valve comprises valve body (1), is installed on the valve gap (2) of described valve body openings end, and described valve body (1) forms a sealed hollow with valve gap (2); The influent stream road (4) that can communicate with described cavity respectively and go out stream (5), be installed on described cavity inner control described influent stream road (4) and go out the control gear that stream (5) connection/disconnection is communicated with, described control gear comprises a valve pad (3) and the force application device that can force in valve pad (3), it is characterized in that: described valve pad (3) is posted by the described opening that goes out stream (5) at described cavity, and described influent stream road (4) is corresponding at the movement direction of the opening direction of described cavity and described valve pad (3).
2, pressure relief valve as claimed in claim 1, it is characterized in that: described valve pad (3) comprises and is positioned at the control device that the center region is used to seal out the stream opening, be positioned at the sealed department of fringe region cramping between described valve body openings end and valve gap (2), the transition part that is provided with flexibility between described control device and the sealed department.
3, pressure relief valve as claimed in claim 2 is characterized in that: the material of described valve pad (3) is a rubber-like rubber.
4, as described any pressure relief valve of claim 1 to 3, it is characterized in that: described force application device comprises a double-screw bolt (6) that is connected with the open-top screw thread of described valve gap (2), the pressure spring (7) of a cramping between described double-screw bolt (6) and described valve pad (3).
5, pressure relief valve as claimed in claim 4 is characterized in that: described force application device also comprises a guide rod (8), and an end of described guide rod (8) is fixed in valve pad (3), and the other end is arranged in the axial hole of described double-screw bolt (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610044591 CN101078446A (en) | 2006-05-27 | 2006-05-27 | Pressure safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610044591 CN101078446A (en) | 2006-05-27 | 2006-05-27 | Pressure safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101078446A true CN101078446A (en) | 2007-11-28 |
Family
ID=38906058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610044591 Pending CN101078446A (en) | 2006-05-27 | 2006-05-27 | Pressure safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101078446A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141168A (en) * | 2010-01-29 | 2011-08-03 | 张润忠 | Pressure-control valve and solar water heater |
| CN104373647A (en) * | 2014-11-29 | 2015-02-25 | 中国船舶重工集团公司第七�三研究所 | Lubricating oil low-pressure protecting device |
| CN109058535A (en) * | 2018-09-26 | 2018-12-21 | 百灵气动科技有限公司 | Pressure adjustable safety valve |
-
2006
- 2006-05-27 CN CN 200610044591 patent/CN101078446A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141168A (en) * | 2010-01-29 | 2011-08-03 | 张润忠 | Pressure-control valve and solar water heater |
| CN102141168B (en) * | 2010-01-29 | 2014-05-07 | 张润忠 | Pressure-control valve and solar water heater |
| CN104373647A (en) * | 2014-11-29 | 2015-02-25 | 中国船舶重工集团公司第七�三研究所 | Lubricating oil low-pressure protecting device |
| CN109058535A (en) * | 2018-09-26 | 2018-12-21 | 百灵气动科技有限公司 | Pressure adjustable safety valve |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |