CN103016833B - Discharging safety valve for indicating liquefied gas pressure - Google Patents
Discharging safety valve for indicating liquefied gas pressure Download PDFInfo
- Publication number
- CN103016833B CN103016833B CN201310006557.1A CN201310006557A CN103016833B CN 103016833 B CN103016833 B CN 103016833B CN 201310006557 A CN201310006557 A CN 201310006557A CN 103016833 B CN103016833 B CN 103016833B
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- Prior art keywords
- pressure
- shaped pipe
- pipe
- safety valve
- discharging
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- 238000007599 discharging Methods 0.000 title abstract 7
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 230000005856 abnormality Effects 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 230000001960 triggered effect Effects 0.000 description 4
- 238000004880 explosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001676635 Lepidorhombus whiffiagonis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a discharging safety valve for indicating liquefied gas pressure, and belongs to the technical field of firefighting safety. In order to respond to potential safety hazard of leakage of a pressure reducing valve, the following measures of the scheme are adopted: a liquid is filled in a U-shaped pipe; one side of the U-shaped pipe is connected with the low pressure side of the pressure reducing valve; a pressure abnormity detecting device is mounted on the other side of the pressure reducing valve and a discharging pipe is connected to the other side of the pressure reducing valve; and the other end of the discharging pipe is led outdoors. As the device is mounted in a low pressure pipeline, the discharging safety valve for indicating the liquefied gas pressure, provided by the invention, can be mounted in a more obvious position to be convenient to observe. Therefore, the discharging safety valve has the advantage that users can randomly observe the variation of the pressure in the low pressure pipeline and the operation situation of a pressure reducer. Once the pressure reducer is leaked, the device can send out an alarming signal and the excessive leaked gas can penetrate through the liquid in the U-shaped pipe and can be discharged outdoors through the discharging pipe, so that a safe pressure level is maintained in the low pressure pipeline.
Description
Technical field
The invention belongs to a technical field of security against fire.
Background technique
The present invention comes from the experience of a subsidiary risk of claimant.Within one day, cook in the application kitchen that enters as usual, blow-on cooking of striking sparks after being ready to all.Just press ignitor switch, suddenly hear a strong whiff, and then a Great Fire Ball rises from liquefied gas furnace, and liquefied gas furnace surrounding is fire everywhere.Claimant recognizes at once, must be that reduction valve has gone wrong.And then be flushed in a hurry downstairs, the angle valve on cylinder for liquefied gas closed, so just avoids the generation of more major break down.Having there is leakage in that reduction valve really afterwards confirmed, makes the pressure increase of low voltage side on high-tension side pressure, the pressure namely in steel cylinder.At this moment the pressure due to low voltage side is very high, just there occurs above-mentioned one act when claimant strikes sparks.Fortunately be that gas now in cylinder for liquefied gas is nearly finished, air pressure only has normal about 1/3rd, if total head, how claimant dare not imagine its consequence.
Above-mentioned thing, is that claimant is worrying for many years always, and is thinking deeply the thing how to tackle always.Valve leak is also one troublingly cannot avoid occurrence again completely.Perhaps, this is the reason often seeing the class news that to set off an explosion because of gas leak in the media.No matter be any valve, always it has one day of inefficacy.The most fearful is do not know that it is when occurring to leak and occur to leak that day, once can not process in time or deal with improperly, be easy to catastrophic event occurs.For the trouble in reduction carrying and danger, present cylinder for liquefied gas is placed on downstairs and by low pressure line, a cylinder for liquefied gas is very general for the situation of multiple user.In order to easy to use, the angle valve on these cylinder for liquefied gas is almost never close, and is all 24 hours air feed.In these users, in low pressure line, barometer is not installed, does not more have the phenomenon of mounting safety valve very general.This gives Timeliness coverage problem and removes the dangerous condition and brings difficulty.The differing pressure of reduction valve both sides is very greatly different, and be about 1.5MPa in high pressure side and cylinder for liquefied gas, low voltage side only has 2.8KPa.Indoor supply air line is built by low pressure requirement, and it can not bear on high-tension side pressure.In one day, the most of the time does not have user's gas, once at this moment leaking appears in reduction valve, the pressure in air supply pipe can rise at leisure.And the air pressure only rising to reduction valve both sides is in theory equal, just can stop when namely low voltage side also reaches 1.5MPa.How fearful this be thing.When the pressure increase in air supply pipe is to certain degree, the most incidental be air supply pipe come off or each interface and stove and accessory gas leakage, this situation once occur, run out with regard to having a large amount of liquid gas, make in room and be full of a large amount of mixed gass, meeting spark will set off an explosion.
Summary of the invention
This potential safety hazard is leaked in order to tackle reduction valve, this invention takes following measure: at the in-built feed liquor body of U-shaped pipe, U-shaped pipe while connect the low voltage side (namely in low pressure supply air line) of reduction valve, another side is equipped with pressure abnormality detecting device and connects discharge pipe, and the other end of discharge pipe is drawn outdoor.
Because this device is contained in low pressure line, so it can be contained in the position that kitchen, bathroom etc. are comparatively obvious, be convenient to observation.The benefit done like this is that user can observe the change of low pressure line internal pressure and the function situation of decompressor at any time, once decompressor leaks, this device can send alarm signal triggered alarm.The excessive gas leaked can go out outdoor through the liquid in U-shaped pipe through discharged, makes the stress level maintaining safety in low-voltage tube, so just can avoid the generation of contingency.
Accompanying drawing explanation
Fig. 1. gas pressure instruction discharge safety valve, Hall magnetic inductor warning device structural representation is installed.
Fig. 2. gas pressure instruction discharge safety valve, installing electrodes warning device structural representation.
.1 cylinder for liquefied gas, 2 reduction valve, 3U shape pipe, 4 magnetic sheet buoyancy aids, 5 electrodes, 6 liquid, 7 Hall magnetic inductors, 8 discharge pipes in figure.
Embodiment
At the in-built feed liquor body 6 of U-shaped pipe 3, the low voltage side (namely in low pressure supply air line) connecting reduction valve 2 of U-shaped pipe 3, another side setting pressure abnormal detecting device also connects discharge pipe 8, and the other end of discharge pipe 8 is drawn outdoor.In U-shaped pipe 3, the height difference of both sides liquid level can reflect pressure change or the pressure difference of U-shaped pipe 3 both sides strictly according to the facts, in its one end access indoor low voltage supply air line (i.e. the low voltage side of reduction valve), user just can monitor the pressure changing of reduction valve low voltage side at any time by it.Leak once there is reduction valve 2, the pressure of reduction valve low voltage side can rise at leisure.U-shaped pipe 3 connects the liquid level also and then synchronous rising of an avris of discharge pipe 8, and when liquid level rises to the position at liquid level detection device place, this device will send a pulse alarm signal, and this signal can be used for triggered alarm and gives the alarm.When the pressure of reduction valve low voltage side continues to rise, then the liquid in U-shaped pipe is pushed to an avris of U-shaped pipe at leisure completely by air pressure.At this moment the pressure of U-shaped intraluminal fluid gas is greater than the pressure that liquid deadweight produces, and liquid gas passes with the form of bubble outside liquid and outlet pipe 8 discharge chamber.When discharge amount is more than or equal to leakage rate, the pressure of reduction valve low voltage side will maintain the level of a safety.Bubble in U-shaped pipe can cause the attention of user and take corresponding measure, thus eliminates reduction valve and leak the potential safety hazard caused.Structural stability of the present invention is simple, reliable and practical.
In order to monitor the pressure change of reduction valve low voltage side further in time, this programme is equipped with pressure abnormality detecting device U-shaped pipe 3.The form of pressure abnormality detecting device can be diversified, such as, can put into magnetic sheet buoyancy aid (4) in an avris of U-shaped pipe 3, and this magnetic sheet buoyancy aid loads onto magnetic sheet on a buoyancy aid, makes this buoyancy aid carrying magnetic.Buoyancy aid and magnetic sheet can with liquid surface liftings.Outside this avris of U-shaped pipe 3, suitable position is provided with Hall magnetic inductor 7, be with magnetic sheet buoyancy aid also to rise when liquid level rises, when rising to the position of Hall magnetic inductor 7, Hall magnetic inductor sends warning pulse signal, triggered alarm is reported to the police, as shown in Figure 1; Again can in the appropriate location installing electrodes of U-shaped pipe, when liquid level rises to the position at electrode place, liquid 6 connects electrode 5, thus sends warning pulse signal, as shown in Figure 2.Can also put into lighttight buoyancy aid or reflective buoyancy aid in an avris of U-shaped pipe 3 in addition, put into this lighttight buoyancy aid or reflective buoyancy aid, object is to cover or reflected infrared ray.Lighttight buoyancy aid or reflective buoyancy aid can be elevated with liquid level.The position installation infrared line induction switch suitable in the outside of this avris of U-shaped pipe 3, liquid level drives lighttight buoyancy aid or reflective buoyancy aid to rise when rising, when rising to the position at infra-red sensor switch place, infra-red sensor switch sends warning pulse signal, and triggered alarm is reported to the police.
Claims (1)
1. a gas pressure instruction discharge safety valve, mainly comprise U-shaped pipe (3), liquid, discharge pipe (8), pressure abnormality detecting device, it is characterized in that: described safety valve be contained in low pressure supply air line comparatively obvious, be convenient to observe position on, at the in-built feed liquor body of U-shaped pipe (3), U-shaped pipe (3) while connect the low voltage side of reduction valve, another side is equipped with pressure abnormality detecting device and connects discharge pipe (8), and the other end of discharge pipe (8) is drawn outdoor; Described pressure abnormality detecting device puts into magnetic sheet buoyancy aid (4) in an avris of U-shaped pipe (3), outside this avris of U-shaped pipe (3), suitable position is provided with Hall magnetic inductor (7), liquid level rises and drives magnetic sheet buoyancy aid also to rise, when rising to the position of Hall magnetic inductor (7), Hall magnetic inductor sends warning pulse signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310006557.1A CN103016833B (en) | 2013-01-08 | 2013-01-08 | Discharging safety valve for indicating liquefied gas pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310006557.1A CN103016833B (en) | 2013-01-08 | 2013-01-08 | Discharging safety valve for indicating liquefied gas pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016833A CN103016833A (en) | 2013-04-03 |
| CN103016833B true CN103016833B (en) | 2015-03-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310006557.1A Expired - Fee Related CN103016833B (en) | 2013-01-08 | 2013-01-08 | Discharging safety valve for indicating liquefied gas pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016833B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200979482Y (en) * | 2006-11-10 | 2007-11-21 | 程志勇 | A gas utensil air pressure detector |
| CN201141798Y (en) * | 2007-12-31 | 2008-10-29 | 席兴中 | Gas leakage tester |
| CN202992365U (en) * | 2013-01-08 | 2013-06-12 | 胡达广 | Liquefied gas pressure indicating discharge safety valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59211836A (en) * | 1983-05-17 | 1984-11-30 | Tominaga Oil Pump Mfg Co Ltd | Method for inspecting air-tightness of tank chamber |
| JP2000283879A (en) * | 1999-03-30 | 2000-10-13 | Pacific Ind Co Ltd | Inspection device for waterproofness of electronic equipment |
-
2013
- 2013-01-08 CN CN201310006557.1A patent/CN103016833B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200979482Y (en) * | 2006-11-10 | 2007-11-21 | 程志勇 | A gas utensil air pressure detector |
| CN201141798Y (en) * | 2007-12-31 | 2008-10-29 | 席兴中 | Gas leakage tester |
| CN202992365U (en) * | 2013-01-08 | 2013-06-12 | 胡达广 | Liquefied gas pressure indicating discharge safety valve |
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| Publication number | Publication date |
|---|---|
| CN103016833A (en) | 2013-04-03 |
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Owner name: LU BIXIAN Free format text: FORMER OWNER: HU DAGUANG Effective date: 20150210 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Na Inventor after: Jiang Mengran Inventor after: Huang Shenglin Inventor after: Liu Yan Inventor after: Tian Min Inventor after: Hu Daguang Inventor before: Hu Daguang |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HU DAGUANG TO: HUANG NA JIANG MENGRAN HUANG SHENGLIN LIU YAN TIAN MIN HU DAGUANG |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20150210 Address after: 523051 Guangdong city of Dongguan province Dongcheng District District No. 42 West Haruki Zhang Fang Applicant after: Lu Bixian Address before: Guangdong province Dongguan City Wanjiang 523051 liuyongwei Fen Xi Lu Nan Yi Xiang No. 6 three Applicant before: Hu Daguang |
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Owner name: QIDONG TIANFEN ELECTRIC TOOL TECHNOLOGY INNOVATION Free format text: FORMER OWNER: LU BIXIAN Effective date: 20150709 |
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Effective date of registration: 20150709 Address after: Qidong City, Jiangsu province 226200 Nantong lvsigang Tianfen electric tools trade city comprehensive building Patentee after: QIDONG TIANFEN ELECTRIC TOOL TECHNOLOGY INNOVATION CENTER Address before: 523051 Guangdong city of Dongguan province Dongcheng District District No. 42 West Haruki Zhang Fang Patentee before: Lu Bixian |
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Effective date of registration: 20170817 Address after: 226200, Nanyang Town, Jiangsu City, Qidong province Nantong industrial concentration area Patentee after: QIDONG YONG'AN VALVE Co.,Ltd. Address before: Qidong City, Jiangsu province 226200 Nantong lvsigang Tianfen electric tools trade city comprehensive building Patentee before: Qidong Tianfen Electric Tool Technology Innovation Center |
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| CF01 | Termination of patent right due to non-payment of annual fee |