CN103759068A - Gas saving base of safety valve of low temperature heat insulation gas cylinder - Google Patents
Gas saving base of safety valve of low temperature heat insulation gas cylinder Download PDFInfo
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- CN103759068A CN103759068A CN201410033071.1A CN201410033071A CN103759068A CN 103759068 A CN103759068 A CN 103759068A CN 201410033071 A CN201410033071 A CN 201410033071A CN 103759068 A CN103759068 A CN 103759068A
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- gas
- spool
- cavity
- safety valve
- valve
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- 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
- F16K43/00—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose
- F16K43/005—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose an auxiliary valve closing automatically when the main valve is being disassembled
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a gas saving base of a safety valve of a low temperature heat insulation gas cylinder. The gas saving base comprises a valve body, a reset spring, a valve core and a gas outlet connector. A gas inlet cavity is formed in the front end of the valve body, a moving cavity is formed in the rear end of the valve body, and the gas inlet cavity is communicated with the moving cavity. A gas outlet cavity is formed in the gas outlet connector, the front end of the gas outlet connector is connected with the rear end of the valve body, and the valve core and the reset spring are placed in the moving cavity. One end of the reset spring abuts against the valve body, and the other end of the reset spring abuts against the front end of the valve core. The external diameter of the tail end of the valve core is larger than the internal diameter of the gas outlet cavity. A valve core ventilation channel is formed in the valve core, one end of the valve core ventilation channel is communicated with the moving cavity, and the other end of the valve core ventilation channel is tightly attached to the gas outlet connector. When the safety valve is dismounted, the gas saving base can automatically seal a gas circuit for releasing gas in the low temperature heat insulation gas cylinder; when a novel safety valve which is qualified in verification is mounted, the gas circuit can be automatically opened by the gas saving valve, gas energy is saved, and accidental risks for releasing flammable and combustible gas are also avoided.
Description
Technical field
The present invention relates to safety valve field, particularly a kind of cryogenic insulated cylinder safety valve solar term seat.
Background technique
Cryogenic insulated cylinder divides industrial gas, LNG Liquefied natural gas and automobile liquefied natural gas bottle, and it is applied in the various fields such as biology, medicine, chemical industry, machinery, metallurgy, traffic widely as transportable pressure vessel.Cryogenic insulated cylinder safety valve is as the important safety attachment of cryogenic insulated cylinder; play the effect of safety protection; cryogenic insulated cylinder safety valve needs periodic check; existing periodic check method is by after the direct emptying of the gas in cryogenic insulated cylinder; the lower safety valve of dismounting, then changes the qualified safety valve of new verification, and this way is not only the waste to Gas Energy Source; run into inflammable and explosive gas, also have the serious risk leading to a disaster.
In order to address the above problem, a kind of rational in infrastructure, working life is of a specified duration, the reliable cryogenic insulated cylinder safety valve of Security solar term seat becomes related domain study hotspot.
Summary of the invention
In order to overcome the technical problem existing in prior art, the invention provides a kind of gas that needn't discharge in gas cylinder and can unload the cryogenic insulated cylinder safety valve solar term seat that safety valve detects.
The technical solution that realizes the object of the invention is: a kind of cryogenic insulated cylinder safety valve solar term seat, comprise valve body, Returnning spring, spool, air outlet adapter, valve body front end is provided with air inlet cavity and rear end is provided with mobile cavity, air inlet cavity and mobile cavity are communicated with, in air outlet adapter, being provided with give vent to anger cavity and front end is connected with valve rear end, spool and Returnning spring are positioned at mobile cavity, wherein one end of Returnning spring is pressed on valve body, the other end of Returnning spring is pressed on the tail end of spool, spool front end external diameter is greater than the internal diameter of the cavity of giving vent to anger, and spool is provided with spool venting channels, spool venting channels one end communicates with mobile cavity, the other end and air outlet adapter wall are close to.
The present invention compared with prior art, its remarkable advantage: when (1) detects safety valve, without unloading safety valve, solar term seat seals the gas circuit that in cryogenic insulated cylinder, gas is released automatically, while loading onto the qualified safety valve of new verification, solar term seat is opened gas gas circuit automatically, has not only saved Gas Energy Source, has also avoided flammable explosive gas to discharge the risk leading to a disaster; (2) the present invention is simple in structure, and cost is lower, is convenient to production and processing.
Accompanying drawing explanation
Fig. 1 is cryogenic insulated cylinder safety valve solar term seat sectional drawing;
Fig. 2 is the cryogenic insulated cylinder safety valve solar term seat sectional drawing with safety valve;
Fig. 3 is cryogenic insulated cylinder safety valve solar term seat sectional axonometric drawing.
Embodiment
Below in conjunction with accompanying drawing, by mode of execution, describe cryogenic insulated cylinder safety valve solar term seat provided by the invention in detail.Should be understood that these enforcements are only not used in and limit the scope of the invention for the present invention is described.
A kind of cryogenic insulated cylinder safety valve solar term seat of the present invention, comprise valve body 1, Returnning spring 3, spool 4, air outlet adapter 11, valve body 1 front end is provided with air inlet cavity 2 and rear end is provided with mobile cavity 5, air inlet cavity 2 and mobile cavity 5 are communicated with, in air outlet adapter 11, being provided with give vent to anger cavity 12 and front end is connected with valve body 1 rear end, spool 4 is positioned at mobile cavity 5 with Returnning spring 3, wherein one end of Returnning spring 3 is pressed on valve body 1, the other end of Returnning spring 3 is pressed on the tail end of spool 4, spool 4 external diameter be greater than the internal diameter of the cavity 12 of giving vent to anger.Spool 4 can move back and forth in the mobile cavity 5 of valve body 1, controls the connected sum isolation of air inlet cavity 2 and the cavity 12 of giving vent to anger.
During the present invention uses, cryogenic insulated cylinder safety valve solar term seat suction port end is arranged on cryogenic insulated cylinder, air outlet end is installed cryogenic insulated cylinder safety valve, when safety valve 14 screw-in solar term seats are given vent to anger cavity 12 internal thread, safety valve 14 heads on spool 4 and to gas cylinder direction, moves mobile cavity 5 is interior, make spool 4 separated with air outlet adapter 11, air inlet cavity 2, mobile cavity 5 and the cavity 12 of giving vent to anger form venting channels.During normal use, the pressure of cryogenic insulated cylinder internal gas acts directly on safety valve 14 by venting channels; When safety valve 14 periodic checks need to be changed, without by the gas emptying in cryogenic insulated cylinder, directly pull down safety valve 14, now spool 4 is because the effect of Returnning spring 3 gentle pressure of the inside of a bottle resets, closely cooperate and play seal action with air outlet adapter 11, block the gas in cryogenic insulated cylinder.Load onto after the qualified safety valve of new verification 14, safety valve 14 by spool 4 backward in the interior passing of mobile cavity 5, make spool 4 separated with air outlet adapter 11, venting channels is opened, and the pressure of cryogenic insulated cylinder internal gas acts directly on safety valve 14 by venting channels.
Concrete, shown in Fig. 1 and Fig. 2, valve body 1 is stepped, and front end external diameter is less than rear end external diameter, and front end is insertion tube shape, and front end outer wall is provided with the outside thread being connected with cryogenic insulated cylinder, can precession gas cylinder in screw threads for fastening; Valve body 1 hollow, there are two cavitys inside, i.e. air inlet cavity 2 and mobile cavity 5, and two cavitys are connected, and air inlet cavity 2 is communicated with gas cylinder cavity; The inwall of valve body 1 rear end mobile cavity 5 arranges internal thread.Air outlet adapter 11 front ends are insertion tube shape, and outer wall arranges outside thread, in the mobile cavity 5 of air outlet adapter 11 front end precession valve bodies 1, with valve body 1 be threaded connection fastening, and in joint with gasket seal 10 sealing; Air outlet adapter 11 hollows form the cavity 12 of giving vent to anger, and the cavity 12 rear end inwalls of giving vent to anger are provided with screw thread, can with cryogenic insulated cylinder safety valve 14 screw threads for fastening, and in air outlet adapter 11 and cryogenic insulated cylinder safety valve 14 joints, seal ring 13 is set.
Spool 4 is positioned at mobile cavity 5 with Returnning spring 3, wherein one end of Returnning spring 3 is fixed on valve body 1 inwall, the other end of Returnning spring 3 is fixed on the tail end of spool 4, the external diameter of spool 4 communicates with the internal diameter of mobile cavity 5, can in the mobile cavity 5 of valve body 1, move back and forth, spool 4 front ends are pressed on air outlet adapter 11 walls, and spool 4 external diameters are greater than the internal diameter of the cavity 12 of giving vent to anger, and spool 4 is provided with the spool venting channels 6 paralleling to the axis.When normal use, spool venting channels 6 is communicated with mobile cavity 5 and the cavity 12 of giving vent to anger; When maintenance safety valve 14, because the external diameter of spool 4 is greater than the internal diameter of the cavity 12 of giving vent to anger, one end 4 of spool venting channels 6 is close on the wall of air outlet adapter 11, and mobile cavity 5 and the cavity 12 of giving vent to anger is separated.
Spool 4 tail ends are provided with the plug 9 of grafting tubular, and plug 9 external diameters are identical with cavity 12 internal diameters of giving vent to anger, and plug 9 hollows and wall are provided with more than one spool exhaust port 9.1, and during assembling, described plug 9 is connected in the cavity 12 of giving vent to anger of air outlet adapter 11.When normal use, spool venting channels 6 and spool exhaust port 9.1 are communicated with mobile cavity 5 and the cavity 12 of giving vent to anger; When maintenance safety valve 14, because the external diameter of spool 4 is greater than the internal diameter of the cavity 12 of giving vent to anger, one end of spool venting channels 6 is close on the wall of air outlet adapter 11, and mobile cavity 5 and the cavity 12 of giving vent to anger is separated.
Air outlet adapter 11 front ends are provided with protruding valve seat 8, spool 4 tops are provided with flap 7, when normal use, under the active force of safety valve 14, air outlet adapter 11 is separated with spool 4, valve seat 8 is separated with flap 4, mobile cavity 5 and the cavity 12 of giving vent to anger are communicated with by spool venting channels 6 and spool exhaust port 9, when detected state, under the active force of spool 4 gas pressure and Returnning spring 3 in gas cylinder, flap 7 is pressed on valve seat 8, makes mobile cavity 5 separated with the cavity 12 of giving vent to anger.
Adopt the cryogenic insulated cylinder safety valve solar term seat of the above preferred embodiment of the present invention of describing by reference to the accompanying drawings, realized the gas cylinder function separated with safety valve connected sum, but realize technique effect of the present invention, be not limited to aforesaid way.Basic ideas of the present invention are to provide a kind of solar term seat, this solar term seat inside is provided with cavity, and this cavity is the connecting passage of gas cylinder cavity and safety valve, in solar term seat cavity, be provided with spool and Flexible Reset parts, spool can to-and-fro motion in solar term seat cavity under the effect of external force, control gas cylinder gas circuit is communicated with and isolation with safety valve, and realization need not discharge the gas in gas cylinder and then can change the function of safety valve.This implementation has a lot; for example, solar term seat does not comprise plug 9, but comprises the structure of similar valve opening function but safety valve 14 insertions are given vent to anger on the position of cavity 12; as long as can be so that the structure that mobile cavity 5 and the cavity 12 of giving vent to anger are connected all should fall within the scope of protection of the present invention.
Claims (5)
1. a cryogenic insulated cylinder safety valve solar term seat, it is characterized in that: comprise valve body (1), Returnning spring (3), spool (4), air outlet adapter (11), valve body (1) hollow front end is provided with air inlet cavity (2) and rear end is provided with mobile cavity (5), in air outlet adapter (11), being provided with the cavity of giving vent to anger (12) and front end is connected with valve body (1) rear end, spool (4) is positioned at mobile cavity (5) with Returnning spring (3), wherein one end of Returnning spring (3) is pressed on valve body (1), the other end of Returnning spring (3) is pressed on the tail end of spool (4), spool (4) front end is pressed on air outlet adapter (11) wall, spool (4) external diameter is greater than the internal diameter of the cavity of giving vent to anger (12), spool (4) is provided with spool venting channels (6), spool venting channels (6) one end communicates with mobile cavity, the other end and air outlet adapter (11) wall is close to.
2. a kind of cryogenic insulated cylinder safety valve solar term seat according to claim 1, it is characterized in that: valve body (1) rear end inwall arranges internal thread, air outlet adapter (11) front end outer wall arranges outside thread, valve body (1) is threaded with air outlet adapter (11), and seals at gasket seal for joint (10).
3. a kind of cryogenic insulated cylinder safety valve solar term seat according to claim 1 and 2, it is characterized in that: spool (4) tail end is provided with the plug (9) of grafting tubular, plug (9) hollow and wall are provided with more than one spool exhaust port (9.1), during assembling, described plug (9) is connected in the cavity of giving vent to anger (12) of air outlet adapter (11).
4. a kind of cryogenic insulated cylinder safety valve solar term seat according to claim 3, it is characterized in that: air outlet adapter (11) front end is provided with protruding valve seat (8), spool (4) tail end is provided with flap (7), and flap (7) is pressed on valve seat (8) under the effect of Returnning spring (3).
5. a kind of cryogenic insulated cylinder safety valve solar term seat according to claim 3, it is characterized in that: valve body (1) front end outer wall is provided with the outside thread being connected with cryogenic insulated cylinder, air outlet adapter (11) inwall is provided with the internal thread being connected with cryogenic insulated cylinder safety valve (14), in air outlet adapter (11) and cryogenic insulated cylinder safety valve (14) joint, seal ring (13) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033071.1A CN103759068A (en) | 2014-01-24 | 2014-01-24 | Gas saving base of safety valve of low temperature heat insulation gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033071.1A CN103759068A (en) | 2014-01-24 | 2014-01-24 | Gas saving base of safety valve of low temperature heat insulation gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103759068A true CN103759068A (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410033071.1A Pending CN103759068A (en) | 2014-01-24 | 2014-01-24 | Gas saving base of safety valve of low temperature heat insulation gas cylinder |
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| CN (1) | CN103759068A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343748A (en) * | 2017-01-22 | 2018-07-31 | 乔森 | A kind of automobile-used LNG gas cylinders switching valve body and its working method |
| CN108458120A (en) * | 2018-04-18 | 2018-08-28 | 朱彦杰 | Gas control height pressure valve |
| CN111590250A (en) * | 2020-06-09 | 2020-08-28 | 东莞市中一合金科技有限公司 | Closed water path cooling system |
| CN111927989A (en) * | 2020-07-29 | 2020-11-13 | 凯迈（洛阳）气源有限公司 | Large-flow high-pressure valve structure for quick-change deflation of gas cylinder |
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| US5299598A (en) * | 1992-07-02 | 1994-04-05 | Cross Pump International | Check valve |
| CN2186835Y (en) * | 1993-12-29 | 1995-01-04 | 重庆钢铁(集团)公司型钢厂 | Automatic one-way valve |
| CN200999959Y (en) * | 2007-01-19 | 2008-01-02 | 成都川空阀门有限公司 | LNG filling device |
| CN201031979Y (en) * | 2007-04-02 | 2008-03-05 | 程渭钦 | Back valve of air compressor |
| WO2010037073A2 (en) * | 2008-09-29 | 2010-04-01 | Global Engineering Marketing Llc | Central tire inflation wheel assembly and valve |
| CN101761675A (en) * | 2009-11-20 | 2010-06-30 | 卓旦春 | Novel safety valve for water heater |
| CN201672111U (en) * | 2010-04-27 | 2010-12-15 | 宁波华成阀门有限公司 | Double-check inverse flow preventing device |
| CN103438249A (en) * | 2013-08-19 | 2013-12-11 | 西安江河电站技术开发有限责任公司 | Gas check valve |
| CN103470826A (en) * | 2013-09-30 | 2013-12-25 | 江南工业集团有限公司 | Maintainable low-temperature gas return port |
| CN203686340U (en) * | 2014-01-24 | 2014-07-02 | 丹阳市飞轮气体阀门有限公司 | Throttling base for safety valve of low-temperature heat insulation gas cylinder |
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2014
- 2014-01-24 CN CN201410033071.1A patent/CN103759068A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299598A (en) * | 1992-07-02 | 1994-04-05 | Cross Pump International | Check valve |
| CN2186835Y (en) * | 1993-12-29 | 1995-01-04 | 重庆钢铁(集团)公司型钢厂 | Automatic one-way valve |
| CN200999959Y (en) * | 2007-01-19 | 2008-01-02 | 成都川空阀门有限公司 | LNG filling device |
| CN201031979Y (en) * | 2007-04-02 | 2008-03-05 | 程渭钦 | Back valve of air compressor |
| WO2010037073A2 (en) * | 2008-09-29 | 2010-04-01 | Global Engineering Marketing Llc | Central tire inflation wheel assembly and valve |
| CN101761675A (en) * | 2009-11-20 | 2010-06-30 | 卓旦春 | Novel safety valve for water heater |
| CN201672111U (en) * | 2010-04-27 | 2010-12-15 | 宁波华成阀门有限公司 | Double-check inverse flow preventing device |
| CN103438249A (en) * | 2013-08-19 | 2013-12-11 | 西安江河电站技术开发有限责任公司 | Gas check valve |
| CN103470826A (en) * | 2013-09-30 | 2013-12-25 | 江南工业集团有限公司 | Maintainable low-temperature gas return port |
| CN203686340U (en) * | 2014-01-24 | 2014-07-02 | 丹阳市飞轮气体阀门有限公司 | Throttling base for safety valve of low-temperature heat insulation gas cylinder |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343748A (en) * | 2017-01-22 | 2018-07-31 | 乔森 | A kind of automobile-used LNG gas cylinders switching valve body and its working method |
| CN108343748B (en) * | 2017-01-22 | 2024-01-26 | 乔森 | LNG (liquefied Natural gas) cylinder switching valve body for vehicle and working method thereof |
| CN108458120A (en) * | 2018-04-18 | 2018-08-28 | 朱彦杰 | Gas control height pressure valve |
| CN108458120B (en) * | 2018-04-18 | 2024-03-29 | 朱彦杰 | Pneumatic control high-low pressure air valve |
| CN111590250A (en) * | 2020-06-09 | 2020-08-28 | 东莞市中一合金科技有限公司 | Closed water path cooling system |
| CN111927989A (en) * | 2020-07-29 | 2020-11-13 | 凯迈（洛阳）气源有限公司 | Large-flow high-pressure valve structure for quick-change deflation of gas cylinder |
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Application publication date: 20140430 |
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| RJ01 | Rejection of invention patent application after publication |