CN103994257A - Ultralow temperature safety valve - Google Patents
Ultralow temperature safety valve Download PDFInfo
- Publication number
- CN103994257A CN103994257A CN201410160219.8A CN201410160219A CN103994257A CN 103994257 A CN103994257 A CN 103994257A CN 201410160219 A CN201410160219 A CN 201410160219A CN 103994257 A CN103994257 A CN 103994257A
- Authority
- CN
- China
- Prior art keywords
- valve
- piston
- valve body
- ultralow temperature
- temperature safety
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention discloses an ultralow temperature safety valve. The ultralow temperature safety valve comprises a valve body and a sealing gasket. A valve hole penetrating through the valve body is formed in the valve body. The sealing gasket is arranged in the valve hole. An air inlet liquid state channel connector is arranged in the portion, at one end of the sealing gasket, of the valve hole. A piston is arranged at the other end of the sealing gasket. An adjusting screw is arranged inside the portion, at the air outlet end of the valve body, of the valve hole. A spring is arranged between the piston and the adjusting screw. A screw hole is arranged on the position, corresponding to the mounting position of the piston, on the valve body. A positioning screw used for preventing the piston from rotating is arranged inside the screw hole. A bayonet is arranged at the portion, corresponding to the positioning screw, of the side face of the piston. A gap is reserved between the side wall of the piston and the inner wall of the valve body. According to the ultralow temperature safety valve, the positioning screw is installed on the valve body and can control the rotation of the piston; the cross section of the piston is of a triangular shape, so that the contact area between the piston and the valve body is greatly reduced; the sealing gasket of the valve realizes planar sealing, so that the full-open stroke of the valve is reduced; a duckbill valve is arranged and can prevent rubbish and damp air from entering the valve body and blocking the piston.
Description
Technical field
The present invention relates to a kind of ultralow temperature safety valve, its operating temperature range is-200 DEG C～+ 100 DEG C.
Background technique
At present, safety valve is divided into following several situation on the market:
1, the piston that safety valve adopts is due to the rotary orientation of spring, and the sealing gasket of valve has rotation after opening, and while closing after opening, piston can produce bias and reveal again.
2, the piston that safety valve adopts is cylindrical body, with valve body be Spielpassung, larger with the surface of contact of valve body, because this safety valve is cryogenic applications, airborne water vapour build-ups ice at low temperatures and can be full of the gap of piston and valve body, thereby cause piston ice stifled, can not reset after making stuck piston not open or to open.
3, safety valve of the same type, the sealed mouth of employing is conical surface seal, and conical surface seal can make the standard-sized sheet stroke of valve strengthen, and amount of spring compression strengthens, and easily water inlet and foreign material of conical surface seal mouth, thereby causes leakage.
4, safety valve of the same type is not to be with duckbill Valve.Such safety valve in use easily enters rubbish and malaria, causes stuck piston.
Summary of the invention
The problems referred to above that exist in order to overcome existing safety valve, the invention provides and a kind ofly can effectively solve piston rotation, stop up can not reset, the entering of leakage and rubbish and humid air, prevent the ultralow temperature safety valve of stuck piston problem.
The technical solution used in the present invention is:
A kind of ultralow temperature safety valve, comprise valve body, in valve body, be provided with the valve opening that connects valve body, be arranged on the sealing gasket in valve opening, in the valve opening of one end of sealing gasket, be provided with the liquid channel interface of air inlet, the other end is provided with piston, in the valve opening of the outlet side of described valve body, be provided with adjusting screw, between piston and adjusting screw, be provided with spring, it is characterized in that: on described valve body, corresponding piston mounting point is provided with screw hole, in screw hole, be provided with the positioning screwn for preventing piston rotation, the position of the described corresponding positioning screwn of piston side face is provided with bayonet socket, the end of described positioning screwn is stuck in described bayonet socket, between the sidewall of described piston and the inwall of valve body, leave space.
Further, the cross section of described piston is triangular structure, and three angles of described triangular structure are set to chamfering.
Further, the outlet side of described valve body is provided with the duckbill Valve being communicated with described valve opening, and the lower end of described duckbill Valve is socketed on described valve body.
Further, in described piston and adjusting screw, be respectively arranged with spring positioning table terrace.
Further, described valve body lower portion is provided with drain opening near a side at the liquid channel interface of air inlet position.
Beneficial effect of the present invention is embodied in:
1, positioning screwn is housed on valve body, the rotation that this positioning screwn can control piston, thus ensure that piston still has good sealability in the time resetting;
2, piston cross section is triangle, and will greatly reduce with the surface of contact of valve body, and evidence, even if there is water vapour ice stifled, under spring-force driven dual, piston still can freely be opened or reset;
3, the sealing gasket of valve is plane sealing, and sealed mouth is protruding form of nozzle, and the standard-sized sheet stroke of valve is diminished, and amount of spring compression reduces, and safety valve pressure release is stablized fast, prevents that again water vapour or other foreign material from entering sealed mouth and causing leakage or damage;
4, supporting installation duckbill Valve on valve body, prevents that rubbish and malaria from entering in valve body and seized piston.
Brief description of the drawings
Fig. 1 a is the structural representation of a kind of ultralow temperature safety valve with duckbill Valve of the present invention.
Fig. 1 b is the structural representation of a kind of duckbill Valve of the present invention.
Structural representation when Fig. 1 c is a kind of duckbill Valve exhaust of the present invention.
Fig. 2 a is partial structurtes schematic diagram of the present invention.
Fig. 2 b is A-A sectional view in Fig. 2 a.
Fig. 2 c is B place enlarged view in Fig. 2 a.
Embodiment
With reference to Fig. 1 a to Fig. 2 c, a kind of ultralow temperature safety valve, comprise valve body 1, in valve body 1, be provided with the valve opening that connects valve body, be arranged on the sealing gasket 2 in valve opening, in the valve opening of one end of sealing gasket 2, be provided with the liquid channel interface 9 of air inlet, the other end is provided with piston 3, in the valve opening of the outlet side of described valve body 1, be provided with adjusting screw 6, between piston 3 and adjusting screw 6, be provided with spring 5, on described valve body 1, corresponding piston mounting point is provided with screw hole, in screw hole, be provided with the positioning screwn 4 for preventing piston rotation, the position of the described corresponding positioning screwn in piston 3 sides is provided with bayonet socket, the end of described positioning screwn 4 is stuck in described bayonet socket, between the sidewall of described piston 3 and the inwall of valve body 1, leave space.
Further, the cross section of described piston 3 is triangular structures, and three angles of described triangular structure are set to chamfering.
Further, the outlet side of described valve body 1 is provided with the duckbill Valve 7 being communicated with described valve opening, and the lower end of described duckbill Valve 7 is socketed on described valve body 1.
Further, in described piston 3 and adjusting screw 6, be respectively arranged with spring positioning table terrace.
Further, described valve body 1 bottom is provided with drain opening 8 near a side at the liquid channel interface of air inlet position.
Content described in this specification embodiment is only enumerating of way of realization to inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also and conceive the equivalent technologies means that can expect according to the present invention in those skilled in the art.
Claims (5)
1. a ultralow temperature safety valve, comprise valve body, in valve body, be provided with the valve opening that connects valve body, be arranged on the sealing gasket in valve opening, in the valve opening of one end of sealing gasket, be provided with the liquid channel interface of air inlet, the other end is provided with piston, in the valve opening of the outlet side of described valve body, be provided with adjusting screw, between piston and adjusting screw, be provided with spring, it is characterized in that: on described valve body, corresponding piston mounting point is provided with screw hole, in screw hole, be provided with the positioning screwn for preventing piston rotation, the position of the described corresponding positioning screwn of piston side face is provided with bayonet socket, the end of described positioning screwn is stuck in described bayonet socket, between the sidewall of described piston and the inwall of valve body, leave space.
2. a kind of ultralow temperature safety valve as claimed in claim 1, is characterized in that: the cross section of described piston is triangular structure, and three angles of described triangular structure are set to chamfering.
3. a kind of ultralow temperature safety valve as claimed in claim 2, is characterized in that: the outlet side of described valve body is provided with the duckbill Valve being communicated with described valve opening, and the lower end of described duckbill Valve is socketed on described valve body.
4. a kind of ultralow temperature safety valve as claimed in claim 3, is characterized in that: in described piston and adjusting screw, be respectively arranged with spring positioning table terrace.
5. a kind of ultralow temperature safety valve as claimed in claim 4, is characterized in that: described valve body lower portion is provided with drain opening near a side at the liquid channel interface of air inlet position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410160219.8A CN103994257A (en) | 2014-04-21 | 2014-04-21 | Ultralow temperature safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410160219.8A CN103994257A (en) | 2014-04-21 | 2014-04-21 | Ultralow temperature safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103994257A true CN103994257A (en) | 2014-08-20 |
Family
ID=51308511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410160219.8A Pending CN103994257A (en) | 2014-04-21 | 2014-04-21 | Ultralow temperature safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103994257A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576478A (en) * | 2020-12-15 | 2021-03-30 | 深圳市桑泰达科技有限公司 | Mute air pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201802934U (en) * | 2010-08-05 | 2011-04-20 | 无锡尚德太阳能电力有限公司 | Safety valve for low temperature liquid |
| CN201972218U (en) * | 2011-02-22 | 2011-09-14 | 俞洪梁 | Cleanser of washing system |
| CN102192347A (en) * | 2011-06-09 | 2011-09-21 | 张家港富瑞特种装备股份有限公司 | Low-temperature safety valve |
| CN202580173U (en) * | 2012-05-16 | 2012-12-05 | 丹阳市飞轮气体阀门有限公司 | Safety valve for low-temperature thermal insulation gas cylinder |
| US20130000479A1 (en) * | 2011-06-29 | 2013-01-03 | Hon Hai Precision Industry Co., Ltd. | Rotating air cylinder |
-
2014
- 2014-04-21 CN CN201410160219.8A patent/CN103994257A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201802934U (en) * | 2010-08-05 | 2011-04-20 | 无锡尚德太阳能电力有限公司 | Safety valve for low temperature liquid |
| CN201972218U (en) * | 2011-02-22 | 2011-09-14 | 俞洪梁 | Cleanser of washing system |
| CN102192347A (en) * | 2011-06-09 | 2011-09-21 | 张家港富瑞特种装备股份有限公司 | Low-temperature safety valve |
| US20130000479A1 (en) * | 2011-06-29 | 2013-01-03 | Hon Hai Precision Industry Co., Ltd. | Rotating air cylinder |
| CN202580173U (en) * | 2012-05-16 | 2012-12-05 | 丹阳市飞轮气体阀门有限公司 | Safety valve for low-temperature thermal insulation gas cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576478A (en) * | 2020-12-15 | 2021-03-30 | 深圳市桑泰达科技有限公司 | Mute air pump |
| CN112576478B (en) * | 2020-12-15 | 2021-08-24 | 深圳市桑泰达科技有限公司 | Mute air pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203334286U (en) | Grouting tube embedded part | |
| CN104864134A (en) | Safety valve | |
| CN103994257A (en) | Ultralow temperature safety valve | |
| CN203484126U (en) | Vacuum pump buffer tank | |
| CN203836313U (en) | Ultra-low temperature safety valve preventing piston from rotating | |
| CN103603979A (en) | Freezer air pressure balance valve | |
| CN203836312U (en) | Flat sealing ultralow-temperature safety valve | |
| CN203836307U (en) | Piston type ultralow temperature safety valve | |
| CN203148154U (en) | Refrigerator door body sealing rubber strip | |
| CN102518359A (en) | Magnetic sealing structure | |
| CN204739276U (en) | Safety valve | |
| CN204531977U (en) | The concealed draining valve of a kind of door and window | |
| CN202141165U (en) | Air conditioner water drain structure | |
| CN205314228U (en) | Deodorant floor drain of through type | |
| CN203850200U (en) | Movable contact finger and rain cover combined structure for disconnecting switch | |
| CN203836308U (en) | Ultralow temperature safety valve with duckbill valve | |
| CN218494306U (en) | Clamping pressure adjustable installation gate valve | |
| CN207921497U (en) | Antiseep air conditioner sleeve | |
| CN201495594U (en) | Double-seal floor drain | |
| CN203082377U (en) | Shaft end cable outgoing line sealing structure | |
| CN209385870U (en) | A kind of pipe joint | |
| CN202578410U (en) | Magnetic sealing structure | |
| CN202451885U (en) | Vacuum circuit breaking valve | |
| CN102563134A (en) | Vacuum circuit breakage valve | |
| CN102247732B (en) | Box structure for filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20140820 |