CN102392909B - Pressure limiting mechanism of pressure vessel - Google Patents
Pressure limiting mechanism of pressure vessel Download PDFInfo
- Publication number
- CN102392909B CN102392909B CN 201110364440 CN201110364440A CN102392909B CN 102392909 B CN102392909 B CN 102392909B CN 201110364440 CN201110364440 CN 201110364440 CN 201110364440 A CN201110364440 A CN 201110364440A CN 102392909 B CN102392909 B CN 102392909B
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve body
- piston
- valve
- limiting mechanism
- 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.)
- Active
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a pressure limiting mechanism of a pressure vessel. The pressure limiting mechanism comprises a valve body, wherein an interface communicated with the pressure vessel is arranged at the lower end of the valve body; an air exhaust port communicated with an inner cavity of the valve body is arranged at the side wall of the valve body; a piston bush is arranged in the valve body above the interface; a piston which is open at the upper part and the lower part is arranged in the piston bush; a pressure spring is arranged between the upper end face of the piston and the inner wall of the valve body; a sandwich valve is arranged in the piston; a flat washer is arranged on the sandwich valve and below the piston bush; a support spring seat is arranged on the sandwich valve; and a support spring is sleeved on the sandwich valve. By using the pressure limiting mechanism provided by the invention, the maximal pressure intensity of compressed gas in the pressure vessel can be restricted; and when the pressure intensity of the compressed gas in the pressure vessel exceeds a restriction value, the pressure intensity of the compressed gas can be reduced to the restriction value by means of discharging gas, thereby ensuring the safety of the pressure vessel, and at the same time the preliminary pressure of the pressure spring can be adjusted by means of adjusting the upper valve body, thereby setting the maximal pressure intensity required to be controlled.
Description
Technical field
The present invention relates to a kind of pressure limiting mechanism of pressure vessel.
Background technique
Pressure vessels has self highest pressure limit value, to guarantee the Security of pressurized container, still when vessel internal pressure has surpassed limit value by force, how safely and effectively the pressure in the pressurized container to be reduced, and be the key that guarantees pressure vessel safety.
Summary of the invention
Goal of the invention of the present invention is: for the problem of above-mentioned existence, provide a kind of can the limiting pressure container in the highest pressure of pressurized gas, guarantee the pressure limiting mechanism of pressure vessel of pressure vessel safety.
Technological scheme of the present invention is achieved in that a kind of pressure limiting mechanism of pressure vessel, it is characterized in that: comprise valve body, be provided with the interface that is communicated with pressurized container in described valve body lower end, be provided with the relief opening that is communicated with the body cavity body at described body wall, in described valve body, the interface top is provided with piston sleeve, in described piston sleeve, be provided with the piston of upper and lower opening, described piston can move up and down with respect to piston sleeve, between described piston upper-end surface and valve interior wall, be provided with pressure spring, in described piston, be provided with sandwich valve, described sandwich valve upper-end surface is resisted against piston upper shed place, piston sleeve is passed in its lower end, on described sandwich valve, the piston sleeve below is provided with plain washer, is provided with the support spring abutment at described sandwich valve, is socketed with supporting spring at described sandwich valve, described supporting spring one end is resisted against and supports on the spring abutment, the other end is resisted against on the sandwich valve, need not in the situation of pressure release, and sandwich valve intercepts interface and relief opening.
Pressure limiting mechanism of pressure vessel of the present invention, its described valve body comprises upper valve body and lower valve body, and described upper valve body is connected with lower valve body screw thread, and described pressure spring upper end is resisted against the upper valve body inwall, its lower end abutment is in the piston upper-end surface, and described relief opening is opened on the lower valve body.
Pressure limiting mechanism of pressure vessel of the present invention, the nut that its described plain washer is threaded connection in the sandwich valve lower end is fixed on the sandwich valve.
Pressure limiting mechanism of pressure vessel of the present invention, it is provided with back-up ring in described piston, and described support spring abutment is fixedly sleeved on sandwich valve by back-up ring.
Pressure limiting mechanism of pressure vessel of the present invention, it is provided with y-type seal ring between described piston and piston sleeve.
Pressure limiting mechanism of pressure vessel of the present invention, it is provided with the through hole that is communicated with interface at described piston sleeve, and the pressure action in the described through hole the other end so that the pressurized container corresponding with y-type seal ring is at the y-type seal ring end face.
Pressure limiting mechanism of pressure vessel of the present invention, it is provided with the O RunddichtringO between described piston sleeve and valve body.
Pressure limiting mechanism of pressure vessel of the present invention, its described piston sleeve is connected with valve body screw thread.
The present invention is the highest pressure of the interior pressurized gas of limiting pressure container effectively, when the pressure of pressurized gas in the container surpasses limit value, can reduce the pressure of pressurized gas by the mode of Exhaust Gas to limit value, thereby guarantee the safety of pressurized container, pass through to adjust simultaneously the precompression of upper valve body adjustable pressure spring, thereby set the highest pressure that needs control.
Description of drawings
Fig. 1 is structural representation of the present invention.
Mark among the figure: 1 is valve body, and 2 is interface, and 3 is relief opening, 4 is piston sleeve, and 5 is piston, and 5a is the piston upper shed, 6 is pressure spring, and 7 is sandwich valve, and 8 is plain washer, 9 for supporting spring abutment, and 10 is supporting spring, and 11 is nut, 12 is back-up ring, and 13 is y-type seal ring, and 14 is the O RunddichtringO, 15 is spring washer, and 16 is through hole.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make purpose of the present invention, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of pressure limiting mechanism of pressure vessel comprises valve body 1, and described valve body 1 comprises upper valve body 1a and lower valve body 1b, and described upper valve body 1a is threaded with lower valve body 1b.
Be provided with the interface 2 that is communicated with pressurized container in described lower valve body 1b lower end, be provided with the relief opening 3 that is communicated with the body cavity body at described lower valve body 1b sidewall, in described lower valve body 1b, interface 2 tops are provided with piston sleeve 4, described piston sleeve 4 is threaded with valve body 1, in described piston sleeve 4, be provided with the piston 5 of upper and lower opening, described piston 5 can move up and down with respect to piston sleeve 4, between described piston 5 upper-end surfaces and upper valve body 1a inwall, be provided with pressure spring 6, in described piston 5, be provided with sandwich valve 7, described sandwich valve 7 upper-end surfaces are resisted against piston upper shed 5a place, piston sleeve 4 is passed in its lower end, on described sandwich valve 7, piston sleeve 4 belows are provided with plain washer 8, the nut 11 that described plain washer 8 is threaded connection in sandwich valve 7 lower ends is fixed on the sandwich valve 7, between described nut and plain washer, be provided with spring washer 15, be provided with support spring abutment 9 at described sandwich valve 7, be socketed with supporting spring 10 at described sandwich valve 7, described supporting spring 10 1 ends are resisted against and support on the spring abutment 9, the other end is resisted against on the sandwich valve 7, be provided with back-up ring 12 in described piston 5, described support spring abutment 9 is fixedly sleeved on sandwich valve 7 by back-up ring 12; Between described piston 5 and piston sleeve 4, be provided with y-type seal ring 13, be provided with the through hole 16 that is communicated with interface 2 at described piston sleeve 4, corresponding so that the pressure action in the pressurized container of described through hole 16 the other ends and y-type seal ring 13 is at y-type seal ring 13 end faces, strengthen the sealing effect of y-type seal ring, between described piston sleeve 4 and valve body 1, be provided with O RunddichtringO 14.Need not in the situation of pressure release, sandwich valve 7 intercepts interface 2 and relief opening 3.
During work, the compression pressure in the pressurized container acts on the piston, when gas pressure during less than the precompression of pressure spring, pressure spring is pressed in piston on the piston sleeve, sandwich valve is in closed condition, and the pressurized gas in the pressurized container can not be discharged from, and guarantees the sealing of pressurized container; Pressurized gas pressure in pressurized container increases, when it acts on pressure on the piston greater than the precompression of pressure spring, to overcome the elastic force of pressure spring, move on the pushing piston, in the process that piston moves, sandwich valve the effect of supporting spring also with on move until plain washer touches piston sleeve, if this moment, piston moved on continuing, sandwich valve upper-end surface and piston upper shed will produce the gap, interface and relief opening are communicated with, pressurized gas in the pressurized container will be discharged from relief opening via the piston upper shed of opening, and makes pressurized gas pressure reduction in the container; Reduction along with pressurized gas pressure, the pressure that acts on the piston reduces, when pressure is reduced to a certain degree, piston will move down under the elastic force effect of pressure spring, sandwich valve will be under the elastic force effect of supporting spring close port, stop exhaust, namely finished the work cycle of a limit compression gas pressure intensity this moment.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. pressure limiting mechanism of pressure vessel, it is characterized in that: comprise valve body (1), be provided with the interface (2) that is communicated with pressurized container in described valve body (1) lower end, be provided with the relief opening (3) that is communicated with valve body (1) inner chamber body at described valve body (1) sidewall, in described valve body (1), interface (2) top is provided with piston sleeve (4), in described piston sleeve (4), be provided with the piston (5) of upper and lower opening, described piston (5) can move up and down with respect to piston sleeve (4), between described piston (5) upper-end surface and valve body (1) inwall, be provided with pressure spring (6), in described piston (5), be provided with sandwich valve (7), described sandwich valve (7) upper-end surface is resisted against piston upper shed (5a) and locates, piston sleeve (4) is passed in its lower end, on described sandwich valve (7), piston sleeve (4) below is provided with plain washer (8), be provided with support spring abutment (9) at described sandwich valve (7), be socketed with supporting spring (10) at described sandwich valve (7), described supporting spring (10) one ends are resisted against and support on the spring abutment (9), the other end is resisted against on the sandwich valve (7), need not in the situation of pressure release, sandwich valve (7) intercepts interface (2) and relief opening (3).
2. pressure limiting mechanism of pressure vessel according to claim 1, it is characterized in that: described valve body (1) comprises upper valve body (1a) and lower valve body (1b), described upper valve body (1a) is threaded with lower valve body (1b), described pressure spring (6) upper end is resisted against upper valve body (1a) inwall, its lower end abutment is in piston (5) upper-end surface, and described relief opening (3) is opened on the lower valve body (1b).
3. pressure limiting mechanism of pressure vessel according to claim 1 and 2, it is characterized in that: the nut (11) that described plain washer (8) is threaded connection in sandwich valve (7) lower end is fixed on the sandwich valve (7).
4. pressure limiting mechanism of pressure vessel according to claim 3 is characterized in that: be provided with back-up ring (12) in described piston (5), described support spring abutment (9) is fixedly sleeved on sandwich valve (7) by back-up ring (12).
5. pressure limiting mechanism of pressure vessel according to claim 4 is characterized in that: be provided with y-type seal ring (13) between described piston (5) and piston sleeve (4).
6. pressure limiting mechanism of pressure vessel according to claim 5, it is characterized in that: be provided with the through hole (16) that is communicated with interface (2) at described piston sleeve (4), the pressure action in described through hole (16) the other end so that the pressurized container corresponding with y-type seal ring (13) is at y-type seal ring (13) end face.
7. pressure limiting mechanism of pressure vessel according to claim 6 is characterized in that: be provided with O RunddichtringO (14) between described piston sleeve (4) and valve body (1).
8. pressure limiting mechanism of pressure vessel according to claim 7, it is characterized in that: described piston sleeve (4) is threaded with valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110364440 CN102392909B (en) | 2011-11-17 | 2011-11-17 | Pressure limiting mechanism of pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110364440 CN102392909B (en) | 2011-11-17 | 2011-11-17 | Pressure limiting mechanism of pressure vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102392909A CN102392909A (en) | 2012-03-28 |
| CN102392909B true CN102392909B (en) | 2013-04-10 |
Family
ID=45860271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110364440 Active CN102392909B (en) | 2011-11-17 | 2011-11-17 | Pressure limiting mechanism of pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102392909B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5970426B2 (en) * | 2013-06-28 | 2016-08-17 | 株式会社鷺宮製作所 | Pressure operating valve and setting method of set pressure in pressure operating valve |
| CN106439076B (en) * | 2016-12-26 | 2019-04-05 | 成都海瑞斯轨道交通设备有限公司 | A kind of main piston rod and air shut-off valve with type of respiration lubrication system |
| CN109084023B (en) * | 2018-09-18 | 2020-06-09 | 陈显权 | Pressure vessel for adjustable compression type glass lining equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3980095A (en) * | 1975-02-10 | 1976-09-14 | Mcavoy Dennis J | Power transmission |
| US5168895A (en) * | 1989-09-01 | 1992-12-08 | Richard Voss Grubenausbau Gmbh | Pressure-relief valve with teflon seal |
| US6640830B2 (en) * | 2001-12-12 | 2003-11-04 | Sun Hydraulics Corp. | Pilot operated pressure valve |
| CN1461902A (en) * | 2002-05-26 | 2003-12-17 | 李乐平 | Automatic pressure releasing valve |
| CN201050626Y (en) * | 2007-06-13 | 2008-04-23 | 钟国强 | Valve core and water-saving angle valve applying same |
| CN101387350A (en) * | 2007-09-10 | 2009-03-18 | 玛珂系统分析和开发有限公司 | Pressure limiting valve |
| CN202402731U (en) * | 2011-11-17 | 2012-08-29 | 四川制动科技股份有限公司 | Pressure limiting mechanism for pressure container |
-
2011
- 2011-11-17 CN CN 201110364440 patent/CN102392909B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3980095A (en) * | 1975-02-10 | 1976-09-14 | Mcavoy Dennis J | Power transmission |
| US5168895A (en) * | 1989-09-01 | 1992-12-08 | Richard Voss Grubenausbau Gmbh | Pressure-relief valve with teflon seal |
| US6640830B2 (en) * | 2001-12-12 | 2003-11-04 | Sun Hydraulics Corp. | Pilot operated pressure valve |
| CN1461902A (en) * | 2002-05-26 | 2003-12-17 | 李乐平 | Automatic pressure releasing valve |
| CN201050626Y (en) * | 2007-06-13 | 2008-04-23 | 钟国强 | Valve core and water-saving angle valve applying same |
| CN101387350A (en) * | 2007-09-10 | 2009-03-18 | 玛珂系统分析和开发有限公司 | Pressure limiting valve |
| CN202402731U (en) * | 2011-11-17 | 2012-08-29 | 四川制动科技股份有限公司 | Pressure limiting mechanism for pressure container |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102392909A (en) | 2012-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102392909B (en) | Pressure limiting mechanism of pressure vessel | |
| CN204127415U (en) | High-temperature pilot-operated type safety valve | |
| CN108061069B (en) | Buffer overflow valve | |
| US7197910B2 (en) | Die cushion apparatus of a press machine and surge pressure reduction method for a die cushion apparatus | |
| CN103470828A (en) | Diaphragm and diaphragm seal type safety valve using same | |
| CN213809061U (en) | Pressure-adjustable safety valve | |
| CN102709505A (en) | Adjustable explosion relief valve of storage battery | |
| CN204226809U (en) | A kind of stop valve structure | |
| CN202402731U (en) | Pressure limiting mechanism for pressure container | |
| CN103291986A (en) | Directly-operated type reducing valve | |
| CN102278519A (en) | Lever type bottle valve | |
| KR20150021165A (en) | Hydro-pneumatic type relief valve | |
| CN210770473U (en) | Safety valve with pneumatic device | |
| CN202520680U (en) | Novel direct-acting overflow valve | |
| CN209671698U (en) | A kind of overflow valve | |
| CN203463740U (en) | Pressure regulating and unloading valve | |
| CN104728482A (en) | Pressure regulating valve | |
| CN203560453U (en) | Straight-angle type high-temperature high-pressure pulse jetting valve | |
| CN101813205A (en) | Pressure control system and pressure regulation valve thereof | |
| CN203835848U (en) | Electric brake closing valve body | |
| CN203770771U (en) | Positive-negative pressure safety valve | |
| CN204201210U (en) | A kind of reduction valve | |
| CN208397376U (en) | A kind of dual just power formula high pressure gas cylinder safety guard | |
| CN103032579A (en) | Pressure air intake and exhaust volume amplifying device of exhaust valve | |
| CN202023956U (en) | Pressure relief valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Patentee after: Meisha Zhongke Brake Technology Co., Ltd. Address before: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Patentee before: Sichuan Brake Science and Technology Co. Ltd. |