CN102392909A - Pressure limiting mechanism of pressure vessel - Google Patents
Pressure limiting mechanism of pressure vessel Download PDFInfo
- Publication number
- CN102392909A CN102392909A CN2011103644401A CN201110364440A CN102392909A CN 102392909 A CN102392909 A CN 102392909A CN 2011103644401 A CN2011103644401 A CN 2011103644401A CN 201110364440 A CN201110364440 A CN 201110364440A CN 102392909 A CN102392909 A CN 102392909A
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- valve body
- piston
- pressure
- valve
- pressurized container
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- Filling Or Discharging Of Gas Storage Vessels (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 pressurized container pressure limiting mechanism.
Background technique
Pressure vessels all 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: to the problem of above-mentioned existence, provide a kind of can the restriction pressure container in the highest pressure of pressurized gas, guarantee the pressurized container pressure limiting mechanism of pressure vessel safety.
Technological scheme of the present invention is achieved in that a kind of pressurized container pressure limiting mechanism, it is characterized in that: comprise valve body, be provided with the interface that is communicated with pressurized container in said valve body lower end; Be provided with the relief opening that is communicated with the body cavity body at said body wall, in said valve body, above the interface, be provided with piston sleeve, in said piston sleeve, be provided with the piston of upper and lower opening; Said piston can move up and down with respect to piston sleeve, between said piston upper-end surface and valve interior wall, is provided with pressure spring, in said piston, is provided with sandwich valve; Said sandwich valve upper-end surface is resisted against piston upper shed place, and piston sleeve is passed in its lower end, on the said sandwich valve, be provided with plain washer below the piston sleeve; Said sandwich valve is provided with the support spring abutment; On said sandwich valve, be socketed with a support spring, said support spring one end is resisted against and supports on the spring abutment, and the other end is resisted against on the sandwich valve; Need not under the situation of pressure release, sandwich valve intercepts interface and relief opening.
Pressurized container pressure limiting of the present invention mechanism; Its said valve body comprises upper valve body and following valve body, and said upper valve body is threaded with following valve body, and said pressure spring upper end is resisted against the upper valve body inwall; Its lower end abutment is in the piston upper-end surface, and said relief opening is opened in down on the valve body.
Pressurized container pressure limiting of the present invention mechanism, its said plain washer is fixed on the sandwich valve through the nut that is threaded in the sandwich valve lower end.
Pressurized container pressure limiting of the present invention mechanism, it is provided with back-up ring in said piston, and said support spring abutment is fixedly sleeved on sandwich valve through back-up ring.
Pressurized container pressure limiting of the present invention mechanism, it is provided with y-type seal ring between said piston and piston sleeve.
Pressurized container pressure limiting of the present invention mechanism, its said piston sleeve is provided with the through hole that is communicated with interface, and the said through hole the other end so that pressure action pressurized container in corresponding with y-type seal ring is at the y-type seal ring end face.
Pressurized container pressure limiting of the present invention mechanism, it is provided with the O RunddichtringO between said piston sleeve and valve body.
Pressurized container pressure limiting of the present invention mechanism, its said piston sleeve is threaded with valve body.
The present invention is the highest pressure of the interior pressurized gas of restriction pressure container effectively; When the pressure of pressurized gas in the container surpasses limit value; The pressure that can reduce pressurized gas through the mode of discharging gas is to limit value; Thereby guarantee the safety of pressurized container, pass through the precompression of adjustment upper valve body adjustable pressure spring simultaneously, thereby setting needs the highest pressure of control.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Mark among the figure: 1 is valve body, and 2 is interface, and 3 is relief opening, and 4 is piston sleeve, and 5 is piston; 5a is the piston upper shed, and 6 is pressure spring, and 7 is sandwich valve, and 8 is plain washer; 9 for supporting spring abutment, and 10 are a support spring, and 11 is nut, and 12 is back-up ring; 13 is y-type seal ring, and 14 is the O RunddichtringO, and 15 is spring washer, and 16 is through hole.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done detailed explanation.
In order to make the object of the invention, technological scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 1, a kind of pressurized container pressure limiting mechanism comprises valve body 1, and said valve body 1 comprises upper valve body 1a and following valve body 1b, and said upper valve body 1a is threaded with following valve body 1b.
Be provided with the interface 2 that is communicated with pressurized container in said down valve body 1b lower end, be provided with the relief opening 3 that is communicated with the body cavity body, saidly descending in the valve body 1b, be provided with piston sleeve 4 above the interface 2 at said valve body 1b sidewall down; Said piston sleeve 4 is threaded with valve body 1, in said piston sleeve 4, is provided with the piston 5 of upper and lower opening, and said piston 5 can move up and down with respect to piston sleeve 4; Between said piston 5 upper-end surfaces and upper valve body 1a inwall, be provided with pressure spring 6, in said piston 5, be provided with sandwich valve 7, said sandwich valve 7 upper-end surfaces are resisted against piston upper shed 5a place; Piston sleeve 4 is passed in its lower end; On the said sandwich valve 7, be provided with plain washer 8 below the piston sleeve 4, said plain washer 8 is fixed on the sandwich valve 7 through the nut 11 that is threaded in sandwich valve 7 lower ends, between said nut and plain washer, is provided with spring washer 15; Said sandwich valve 7 is provided with and supports spring abutment 9; On said sandwich valve 7, be socketed with a support spring 10, said support spring 10 1 ends are resisted against and support on the spring abutment 9, and the other end is resisted against on the sandwich valve 7; In said piston 5, be provided with back-up ring 12, said support spring abutment 9 is fixedly sleeved on sandwich valve 7 through back-up ring 12; Between said piston 5 and piston sleeve 4, be provided with y-type seal ring 13; Said piston sleeve 4 is provided with the through hole 16 that is communicated with interface 2; Corresponding so that the pressure action in the pressurized container of said 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 said piston sleeve 4 and valve body 1, be provided with O RunddichtringO 14.Need not under 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, and when it acts on pressure on the piston greater than the precompression of pressure spring, will overcome the elastic force of pressure spring; Promote to move on the piston, in the process of on piston, moving, sandwich valve the effect of a support spring also with on move until plain washer and touch piston sleeve; If this moment, piston moved on continuing; Sandwich valve upper-end surface and piston upper shed will produce the gap, and interface and relief opening are communicated with, and the pressurized gas in the pressurized container will be via the piston upper shed of opening; Discharge from relief opening, make 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 support spring close port; Stop exhaust, promptly accomplished the work cycle of a limit compression gas pressure intensity this moment.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. pressurized container pressure limiting mechanism; It is characterized in that: comprise valve body (1), be provided with the interface (2) that is communicated with pressurized container, be provided with the relief opening (3) that is communicated with valve body (1) inner chamber body at said valve body (1) sidewall in said valve body (1) lower end; In said valve body (1), interface (2) top is provided with piston sleeve (4); In said piston sleeve (4), be provided with the piston (5) of upper and lower opening, said piston (5) can move up and down with respect to piston sleeve (4), between said piston (5) upper-end surface and valve body (1) inwall, is provided with pressure spring (6); In said piston (5), be provided with sandwich valve (7); Said sandwich valve (7) upper-end surface is resisted against piston upper shed (5a) and locates, and piston sleeve (4) is passed in its lower end, and, piston sleeve (4) below last at said sandwich valve (7) is provided with plain washer (8); Said sandwich valve (7) is provided with and supports spring abutment (9); On said sandwich valve (7), be socketed with a support spring (10), said support spring (10) one ends are resisted against and support on the spring abutment (9), and the other end is resisted against on the sandwich valve (7); Need not under the situation of pressure release, sandwich valve (7) intercepts interface (2) and relief opening (3).
2. pressurized container pressure limiting according to claim 1 mechanism; It is characterized in that: said valve body (1) comprises upper valve body (1a) and following valve body (1b); Said upper valve body (1a) is threaded with following valve body (1b); Said pressure spring (6) upper end is resisted against upper valve body (1a) inwall, and its lower end abutment is in piston (5) upper-end surface, and said relief opening (3) is opened in down on the valve body (1b).
3. pressurized container pressure limiting according to claim 1 and 2 mechanism, it is characterized in that: said plain washer (8) is fixed on the sandwich valve (7) through the nut (11) that is threaded in sandwich valve (7) lower end.
4. pressurized container pressure limiting according to claim 3 mechanism is characterized in that: in said piston (5), be provided with back-up ring (12), said support spring abutment (9) is fixedly sleeved on sandwich valve (7) through back-up ring (12).
5. pressurized container pressure limiting according to claim 4 mechanism is characterized in that: between said piston (5) and piston sleeve (4), be provided with y-type seal ring (13).
6. pressurized container pressure limiting according to claim 5 mechanism; It is characterized in that: said piston sleeve (4) is provided with the through hole (16) that is communicated with interface (2), and the pressure action in said 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. pressurized container pressure limiting according to claim 6 mechanism is characterized in that: between said piston sleeve (4) and valve body (1), be provided with O RunddichtringO (14).
8. pressurized container pressure limiting according to claim 7 mechanism, it is characterized in that: said 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 true CN102392909A (en) | 2012-03-28 |
| CN102392909B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251325A (en) * | 2013-06-28 | 2014-12-31 | 株式会社鹭宫制作所 | Pressure operating valve and pressure setting method of pressure operating valve |
| CN106439076A (en) * | 2016-12-26 | 2017-02-22 | 成都海瑞斯轨道交通设备有限公司 | Main piston rod with breathing type lubricating structure and air control valve |
| CN109084023A (en) * | 2018-09-18 | 2018-12-25 | 浙江工搪化工设备有限公司 | 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***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***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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251325A (en) * | 2013-06-28 | 2014-12-31 | 株式会社鹭宫制作所 | Pressure operating valve and pressure setting method of pressure operating valve |
| CN106439076A (en) * | 2016-12-26 | 2017-02-22 | 成都海瑞斯轨道交通设备有限公司 | Main piston rod with breathing type lubricating structure and air control valve |
| CN109084023A (en) * | 2018-09-18 | 2018-12-25 | 浙江工搪化工设备有限公司 | Pressure vessel for adjustable compression type glass lining equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102392909B (en) | 2013-04-10 |
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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. |