CN202756713U - Fusible alloy-type low releasing and high sealing safe valve - Google Patents
Fusible alloy-type low releasing and high sealing safe valve Download PDFInfo
- Publication number
- CN202756713U CN202756713U CN2012204340899U CN201220434089U CN202756713U CN 202756713 U CN202756713 U CN 202756713U CN 2012204340899 U CN2012204340899 U CN 2012204340899U CN 201220434089 U CN201220434089 U CN 201220434089U CN 202756713 U CN202756713 U CN 202756713U
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- CN
- China
- Prior art keywords
- valve
- melting alloy
- low melting
- fusible alloy
- low
- 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.)
- Expired - Fee Related
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Classifications
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
- F16K17/383—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/68—Details, e.g. of pipes or valve systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses a fusible alloy-type low releasing and high sealing safe valve. The fusible alloy-type low releasing and high sealing safe valve comprises a joint, a flexible assembly, a valve core and a valve body. The upper end of the valve body is provided with an internal thread and the joint and the internal thread are connected in a threaded mode. The fusible alloy-type low releasing and high sealing safe valve is characterized in that a through hole is arranged in the center of the valve core and the upper end of the through hole is provided with fusible alloy plates in a welded mode. The fusible alloy-type low releasing and high sealing safe valve integrates functions of a low releasing and high sealing valve of gas and functions of a safe releasing valve of gas, creatively utilizes welding characteristics of the fusible alloy as breakthroughs of the safe releasing, thereby being novel in design, simple in structure and reliable in performance, optimizing a gas fire-extinguishing system device structure, reducing number of spare parts, simplifying processing technique of valve doors, improving assembly efficiency of pipe networks and effectively reducing equipment costs.
Description
Technical field
The utility model relates to fire-fighting domain, is specifically related to a kind of low high envelope safety valve of letting out of low melting alloy formula that is applied in the gas extinguishing system.
Background technique
Be the Security of assurance device, gas extinguishing system all uses low high envelope valve (prevent gas extinguishing system micro-leakage from assembling and false tripping occurs) and the safety valve (when preventing that gas extinguishing system from spurting produce because working pressure is too high accident) let out in pipeline.At present low to let out high envelope valve be two individual components with safety valve, so not only increased number of components, also reduced the pipe network efficiency of assembling, becomes and reduce one of manufacture cost and bottleneck of minimizing process-cycle.
The model utility content
In order to solve problems of the prior art, the utility model will hang down to be let out high envelope valve and merges on a carrier with the two function of safety valve, provides that a kind of modern design, low melting alloy formula simple in structure, reliable performance are low lets out the high safety valve that seals.
The technological scheme of the utility model technical solution problem is:
The low high envelope safety valve of letting out of a kind of low melting alloy formula, comprise joint 1, elastic member 3, spool 5 and valve body 6, described valve body 6 upper ends are provided with internal thread, joint 1 is spirally connected with described internal thread, it is characterized in that: described spool 5 centers have through hole 9, the top of described through hole 9 is welded with low melting alloy sheet 8, plays the effect that cuts off through hole.
Further, the top of described through hole 9 is provided with step, comprises for the first step of engaging elastic member 3 with for the second step that engages low melting alloy sheet 8.
Further, also be provided with between the second step of described low melting alloy sheet 8 and through hole 9 be used to the pad 7 that prevents seepage after the low melting alloy sheet heating and melting.
Further, described pad 7 is preferably tinfoil.
Further, described elastic member 3 is spring, is arranged between joint 1 and the spool 5.
Further, seam crossing is provided with the first packing ring 2 between described joint 1 and the valve body 6; Be provided with the second packing ring 4 between described joint 1 and the spool 5.
The utility model improves on common low basis of letting out high envelope valve, and center spool is beaten step hole; Then in the middle of step hole, increase the spot welding low melting alloy, play the effect that cuts off through hole.
When pressure was in range of safety operation, the working principle of the utility model device is with common low to let out high envelope valve the same: when being in the low pressure drain state, spool is equivalent to a piston to be taken over, and valve body outlet side joint and blow-by; When the valve body suction pressure acquires a certain degree, spool is produced thrust, spool is moved to the outlet side, and push the end connector of giving vent to anger, reach the effect of sealing.Exceed range of safety operation and work as pressure, when producing unsafe factor, the low melting alloy sheet of valve core through hole end comes off, and the middle through hole of spool is connected, and directly is communicated with valve body inlet end and outlet side, plays the effect of safety relief pressure.
The low high envelope relief valve design of letting out of the utility model low melting alloy formula is novel, simple in structure, reliable performance, it integrates low high envelope valve and the two function of relief valve of letting out, and has optimized the structure of gas extinguishing system equipment, has reduced amount of parts, make the pipe network efficiency of assembling improve cost.
The low high envelope safety valve of letting out of the utility model low melting alloy formula utilizes the welding characteristic of low melting alloy as the breach of safety relief in a creative way, further reduces equipment cost, and processing technology is obviously simplified.
Below in conjunction with Figure of description the utility model is further described.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is I part enlarged view among Fig. 1.
Among the figure: 1-joint, 2-the first packing ring, 3-elastic member, 4-the second packing ring, 5-spool, 6-valve body, 7-pad, 8-low melting alloy sheet, 9-through hole
Embodiment:
Now by reference to the accompanying drawings the low high envelope safety valve of letting out of low melting alloy formula of the present utility model is further detailed.
The low high envelope safety valve of letting out of a kind of low melting alloy formula as shown in Figure 1, comprise joint 1, elastic member 3, spool 5 and valve body 6, described valve body 6 upper ends are provided with internal thread, joint 1 is spirally connected with described internal thread, it is characterized in that: described spool 5 centers have through hole 9, the top of described through hole 9 is welded with low melting alloy sheet 8, plays the effect that cuts off through hole.The top of described through hole 9 is provided with step, comprises for the first step of engaging elastic member 3 with for the second step that engages low melting alloy sheet 8.Also be provided with between the second step of described low melting alloy sheet 8 and through hole 9 be used to the pad 7 that prevents seepage after the low melting alloy sheet heating and melting.Described pad 7 is preferably tinfoil.Described elastic member 3 is spring, is arranged between joint 1 and the spool 5.Seam crossing is provided with the first packing ring 2 between described joint 1 and the valve body 6; Be provided with the second packing ring 4 between described joint 1 and the spool 5.
Working principle: when system pressure was in range of safety operation, false tripping occured with common low to let out high envelope valve identical for prevent that the gas extinguishing system micro-leakage from assembling in pipeline in its working principle.Exceed range of safety operation and work as pressure, when producing unsafe factor, the low melting alloy sector-meeting of valve core through hole tail end welding is washed open by pressure, allows the middle through hole of spool connect, and the effect of safety relief pressure is played in direct UNICOM's valve body inlet end and outlet side.
Therefore, the utility model device has following 3 kinds of working staties:
1) when being in system's micro-leakage, during the low pressure drain state: because the existence of elastic member 3 makes spool 5 and valve body 6, have hole between spool 5 and the joint 1, the micro-leakage of system can be discharged from the air outlet by the hole between spool and the valve body.
2) normally start when suppression system, the valve body suction pressure acquires a certain degree: because the obstruct of low melting alloy sheet 8, make air-flow produce thrust to spool, the thrust that produces surpasses the elastic force critical value of elastic member 3, spool 5 is moved to the outlet side, drive the second packing ring 4 and push the end connector 1 of giving vent to anger, reach the effect of sealing.
3) work as pressure and exceed range of safety operation, when producing unsafe factor, the low melting alloy sheet 8 in the middle of the spool can be swarmed in by pressure, and the through hole 9 of center spool is connected, and the effect of safety relief pressure is played in direct UNICOM's valve body inlet end and outlet side.
Although the utility model is described with reference to aforesaid specific embodiment; but those skilled in the art will be appreciated that; above embodiment illustrates the utility model rather than restriction the utility model, as long as the scope of in connotation scope of the present utility model the variation of above-described embodiment, claims that modification all should fall into the application being asked for protection.
Claims (6)
1. the low height of letting out of low melting alloy formula seals safety valve, comprise joint (1), elastic member (3), spool (5) and valve body (6), described valve body (6) upper end is provided with internal thread, joint (1) is spirally connected with described internal thread, it is characterized in that: described spool (5) center has through hole (9), and the top of described through hole (9) is welded with low melting alloy sheet (8).
2. the low height of letting out of a kind of low melting alloy formula according to claim 1 seals safety valve, it is characterized in that: the top of described through hole (9) is provided with step, comprises for the first step of engaging elastic member (3) with for the second step that engages low melting alloy sheet (8).
3. a kind of low melting alloy formula according to claim 2 is low lets out high envelope safety valve, it is characterized in that: also be provided with between the second step of described low melting alloy sheet (8) and through hole (9) be used to the pad (7) that prevents seepage after the low melting alloy sheet heating and melting.
4. the low height of letting out of a kind of low melting alloy formula according to claim 3 seals safety valve, and it is characterized in that: described pad (7) is tinfoil.
5. the low high envelope safety valve of letting out of each described a kind of low melting alloy formula according to claim 1～4, it is characterized in that: described elastic member (3) is spring, is arranged between joint (1) and the spool (5).
6. the low high envelope safety valve of letting out of a kind of low melting alloy formula according to claim 5 is characterized in that: be provided with the first packing ring (2) between described joint (1) and the valve body (6); Be provided with the second packing ring (4) between described joint (1) and the spool (5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204340899U CN202756713U (en) | 2012-08-29 | 2012-08-29 | Fusible alloy-type low releasing and high sealing safe valve |
| PCT/CN2013/081500 WO2014032526A1 (en) | 2012-08-29 | 2013-08-14 | Fusible alloy-type safety valve with low leakage and high sealing property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204340899U CN202756713U (en) | 2012-08-29 | 2012-08-29 | Fusible alloy-type low releasing and high sealing safe valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756713U true CN202756713U (en) | 2013-02-27 |
Family
ID=47735897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204340899U Expired - Fee Related CN202756713U (en) | 2012-08-29 | 2012-08-29 | Fusible alloy-type low releasing and high sealing safe valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202756713U (en) |
| WO (1) | WO2014032526A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014032526A1 (en) * | 2012-08-29 | 2014-03-06 | 西安新思化工设备制造有限公司 | Fusible alloy-type safety valve with low leakage and high sealing property |
| CN107289163A (en) * | 2017-06-30 | 2017-10-24 | 上海百图低温阀门有限公司 | Automobile-used high pressure compressed hydrogen cylinder safety device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20030760A1 (en) * | 2003-09-30 | 2005-04-01 | Fiat Ricerche | SAFETY VALVE FOR TANKS IN PRESSURE AND TANK |
| ITVI20070204A1 (en) * | 2007-07-18 | 2009-01-19 | Tomasetto Achille S P A | SAFETY VALVE STRUCTURE, PARTICULARLY FOR THE RELEASE OF GAS IN OVERLAPPING. |
| CN201090811Y (en) * | 2007-09-26 | 2008-07-23 | 孙长杰 | Safety valve |
| CN201284858Y (en) * | 2008-10-07 | 2009-08-05 | 国营第三九四厂 | Low-pressure bleeder valve used for gas starting pipeline of automatic fire-extinguishing system |
| CN102606779A (en) * | 2011-01-24 | 2012-07-25 | 上海靓消消防装备有限公司 | Piston type container valve with high flow |
| CN202756713U (en) * | 2012-08-29 | 2013-02-27 | 西安新思化工设备制造有限公司 | Fusible alloy-type low releasing and high sealing safe valve |
-
2012
- 2012-08-29 CN CN2012204340899U patent/CN202756713U/en not_active Expired - Fee Related
-
2013
- 2013-08-14 WO PCT/CN2013/081500 patent/WO2014032526A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014032526A1 (en) * | 2012-08-29 | 2014-03-06 | 西安新思化工设备制造有限公司 | Fusible alloy-type safety valve with low leakage and high sealing property |
| CN107289163A (en) * | 2017-06-30 | 2017-10-24 | 上海百图低温阀门有限公司 | Automobile-used high pressure compressed hydrogen cylinder safety device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014032526A1 (en) | 2014-03-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151104 Address after: 710075 high tech Zone, Shaanxi, Xi'an science and technology zone, No. two, building 10701, room 6, 65 Patentee after: Shaanxi J&R Fire Fighting Co., Ltd. Address before: Economic and Technological Development Zone Jingwei new city Weiyang 710075 Shaanxi city of Xi'an Province South Road No. 23 Patentee before: Xi'an Xinsi Chemical Processing Equipment Manufacture Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 710075 high tech Zone, Shaanxi, Xi'an science and technology zone, No. two, building 10701, room 6, 65 Patentee after: Shaanxi Ruiwo Kennedy to Limited by Share Ltd Address before: 710075 high tech Zone, Shaanxi, Xi'an science and technology zone, No. two, building 10701, room 6, 65 Patentee before: Shaanxi J&R Fire Fighting Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20190829 |