CN111197697A - Leakage alarm linkage system and linkage alarm exhaust method - Google Patents
Leakage alarm linkage system and linkage alarm exhaust method Download PDFInfo
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- CN111197697A CN111197697A CN201811367359.7A CN201811367359A CN111197697A CN 111197697 A CN111197697 A CN 111197697A CN 201811367359 A CN201811367359 A CN 201811367359A CN 111197697 A CN111197697 A CN 111197697A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 99
- 239000000523 sample Substances 0.000 claims abstract description 15
- 238000007865 diluting Methods 0.000 claims abstract description 13
- 239000011261 inert gas Substances 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 11
- 231100001261 hazardous Toxicity 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims 5
- 238000010790 dilution Methods 0.000 claims 1
- 239000012895 dilution Substances 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- -1 flammable Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
- F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/032—Orientation with substantially vertical main axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/056—Small (<1 m3)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
- F17C2205/0326—Valves electrically actuated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/031—Air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/042—Reducing risk of explosion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/05—Applications for industrial use
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention belongs to the technical field of monitoring of the internal pressure of a laboratory gas cylinder, and particularly relates to a leakage alarm linkage system and a linkage alarm exhaust method, which mainly comprise a normally open pneumatic valve, a normally closed pneumatic valve, a leakage alarm probe, a leakage alarm host, a linkage explosion-proof exhaust device, a linkage closing device and a dangerous gas diluting device, wherein the leakage alarm probe is arranged near a dangerous gas cylinder, when gas leakage is sensed, the leakage alarm probe transmits a signal to the leakage alarm host arranged in a general control room or an office of a manager, the leakage alarm host sends out an audible and visual alarm to inform the manager of emergency treatment, simultaneously transmits the signal to the linkage explosion-proof exhaust device and the linkage closing device, the linkage explosion-proof exhaust device is started to start high-power exhaust, the linkage closing device is started to block the dangerous gas from being continuously output, and the dangerous gas diluting device outputs inert gas to, and the air is discharged to the outside through a discharge pipeline, so that the indoor safety is automatically guaranteed, and the potential safety hazard is systematically eliminated.
Description
Technical Field
The invention belongs to the technical field of monitoring of internal pressure of laboratory gas cylinders, and particularly relates to a leakage alarm linkage system and a linkage alarm exhaust method.
Background
At present, along with the development of science and technology, the increase of laboratory instruments needs to use various gases, including flammable, explosive, toxic, corrosive and other gases, the gases have larger potential safety hazards when stored indoors (instrument rooms), particularly, in recent two years, methane gas explosion of China mining university causes four injuries, hydrogen explosion of Qinghua university causes death of doctor in the field, and laboratory explosion accidents occur successively in Nanjing university of Ministry, Changzhou Ministry of Ministry, Shanghai university of Sudodan and the like, all cause casualties of different degrees.
The early gas detection alarm device reminds a manager to process when gas leaks, if the manager is not, the dangerous gas cannot be automatically discharged, the existing leakage alarm device is additionally provided with an automatic exhaust device and an automatic closing device, when gas leaks, the alarm device can start the exhaust device and the gas closing device while alarming, cut off the output of the dangerous gas and timely discharge the dangerous gas out of a room, but gas still remains in a gas conveying pipeline at the moment, and the risk of the dangerous gas is fundamentally not thoroughly eliminated.
Disclosure of Invention
The invention aims to provide a leakage alarm linkage system and a linkage alarm exhaust method, which can be used for intelligently and systematically eliminating a linkage device of potential safety hazards and are used for solving the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
a leakage alarm linkage system comprises a first normally-open pneumatic valve, a second normally-open pneumatic valve, a first normally-closed pneumatic valve, a second normally-closed pneumatic valve, a leakage alarm probe, a leakage alarm host, a linkage explosion-proof exhaust device, a linkage closing device and a dangerous gas diluting device;
the air inlet end of the first normally-open pneumatic valve is connected with the output end of the dangerous gas bottle, the air outlet end of the first normally-open pneumatic valve is connected with the air inlet end of the second normally-open pneumatic valve through a main pipeline, and the air outlet end of the second normally-open pneumatic valve is connected with the air using device;
one end of the first normally closed pneumatic valve is connected with the air outlet end of the first normally open pneumatic valve through a main pipeline, the other end of the first normally closed pneumatic valve is connected with an emptying pipeline, and the air outlet end of the second normally closed pneumatic valve is connected with the air outlet end of the first normally open pneumatic valve;
the leakage alarm probe is arranged near the dangerous gas bottle and used for detecting whether gas in the dangerous gas bottle leaks or not;
the leakage alarm host is arranged in a general control room or a manager office and has an alarm function;
the linkage explosion-proof exhaust device is arranged in the cylinder chamber or the movable explosion-proof gas supply cabinet and is used for pumping out indoor dangerous gas;
the linkage closing device is respectively connected with the first normally-open pneumatic valve, the second normally-open pneumatic valve, the first normally-closed pneumatic valve and the second normally-closed pneumatic valve and is used for closing the normally-open pneumatic valve and opening the normally-closed pneumatic valve;
the leakage alarm probe, the linkage exhaust device and the dangerous gas closing device are all electrically connected with the leakage alarm host;
and the dangerous gas diluting device is connected with the air inlet end of the second normally-closed pneumatic valve.
Preferably, the linkage closing device comprises a first steel cylinder filled with inert gas, a gas output mechanism arranged on the first steel cylinder, and an electromagnetic valve, wherein one end of the electromagnetic valve is connected with a pipeline of the output mechanism, and the other end of the electromagnetic valve is respectively connected with the first normally-open pneumatic valve, the second normally-open pneumatic valve, the first normally-closed pneumatic valve and the second normally-closed pneumatic valve through pipelines and is simultaneously electrically connected with the leakage alarm host.
Preferably, the dangerous gas diluting device comprises a second steel cylinder filled with inert gas and a gas output mechanism arranged on the second steel cylinder, and the gas output mechanism on the second steel cylinder is connected with a gas inlet end pipeline of the second normally-closed pneumatic valve.
Preferably, a warning lamp or a buzzer is arranged on the leakage alarm host.
Preferably, the leakage alarm host is provided with a display screen for displaying the detection pressure of the gas in real time.
Specifically, the inert gas is nitrogen.
Specifically, the tail end of the emptying pipeline is provided with a filtering device for filtering dangerous gas.
The invention also provides a linkage alarm exhaust method, which comprises the following specific steps:
a) when the leakage alarm probe senses that the gas leaks, the signal is transmitted to the leakage alarm host, the leakage alarm host immediately sends an alarm signal to inform a manager of emergency treatment after receiving the signal, and the signal is sent at the same time and continuously transmitted to the linkage explosion-proof exhaust device and the linkage closing device;
b) the linkage explosion-proof exhaust device is started after receiving the signal, and performs high-power exhaust to exhaust dangerous gas;
c) the linkage closing device is opened after receiving the signal, so that the first normally-open pneumatic valve and the second normally-open pneumatic valve are closed, the continuous output of dangerous gas is cut off, and the first normally-closed pneumatic valve and the second normally-closed pneumatic valve are opened;
d) the dangerous gas diluting device penetrates through the first normally closed pneumatic valve and the second normally closed pneumatic valve through the pipeline to discharge the residual dangerous gas in the pipeline out of the room through the emptying pipeline and the filtering device.
Preferably, the linkage closing device comprises a first steel cylinder filled with nitrogen and an electromagnetic valve, the leakage alarm host sends a signal to the electromagnetic valve in the step c), the electromagnetic valve is opened, when the nitrogen is transmitted to the first normally-opened pneumatic valve and the second normally-opened pneumatic valve, the first normally-opened pneumatic valve and the second normally-opened pneumatic valve are closed, and when the nitrogen is transmitted to the first normally-closed pneumatic valve and the second normally-closed pneumatic valve, the first normally-closed pneumatic valve and the second normally-closed pneumatic valve are opened.
Preferably, the hazardous gas diluting device comprises a second steel cylinder filled with nitrogen and a gas output mechanism arranged on the second steel cylinder, in the step d), the nitrogen is output by the output mechanism, the hazardous gas in the pipeline is diluted by the pipeline through a second normally closed pneumatic valve, and then the hazardous gas is discharged out of the room through the first normally closed pneumatic valve, the emptying pipeline and the filtering device.
The invention has the advantages and beneficial effects that:
the leakage alarm linkage system combines the dangerous gas detection alarm, linkage air exhaust and linkage closing valve, immediately alarms when gas leaks, opens the linkage explosion-proof air exhaust device to exhaust the gas out of a room, simultaneously opens the linkage closing device to stop continuously conveying the gas so as to keep the indoor state free from dangerous gas accumulation, dilutes the gas in a pipeline through the dangerous gas diluting device and exhausts the gas out of the room, and thoroughly eliminates the hidden danger of the dangerous gas in the room.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a flow chart of the method of the present invention.
Detailed Description
In order to facilitate understanding of the present invention for those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
Example 1.
As shown in fig. 1, a leakage alarm linkage system comprises a leakage alarm probe 1, a leakage alarm host 2, a linkage explosion-proof exhaust device 3, an electromagnetic valve 4, a first steel cylinder 5 filled with nitrogen, a second steel cylinder 6 filled with nitrogen, a first normally open pneumatic valve 7, a second normally open pneumatic valve 8, a first normally closed pneumatic valve 9 and a second normally closed pneumatic valve 10; the air inlet end of the first normally-open pneumatic valve 7 is connected with the output end of the dangerous gas bottle 11, the air outlet end of the first normally-open pneumatic valve 7 is connected with the air inlet end of the second normally-open pneumatic valve 8 through a main pipeline, the air outlet end of the second normally-open pneumatic valve 8 is connected with an air using device, the air outlet end of the second normally-closed pneumatic valve 10 is connected with the air outlet port of the first normally-open pneumatic valve 7, one end of the first normally-closed pneumatic valve 9 is connected with the air outlet end of the first normally-open pneumatic valve 7 through a main pipeline, and the other end of the first normally-open pneumatic valve is connected with; the leakage alarm probe 1 is arranged near the dangerous gas bottle 11 and is used for detecting whether gas in the dangerous gas bottle 11 leaks; the leakage alarm host 2 is arranged in a main control room or a manager office and has an alarm function; the linkage explosion-proof exhaust device 3 is arranged in the cylinder chamber or the movable explosion-proof gas supply cabinet and is used for pumping out indoor dangerous gas; the electromagnetic valve 4 is arranged at the gas output end of the first steel cylinder 5, and the other end of the electromagnetic valve is connected with a first normally-open pneumatic valve 7, a second normally-open pneumatic valve 8, a first normally-closed pneumatic valve 9 and a second normally-closed pneumatic valve 10 through pipelines; the second steel cylinder 6 is connected with the air inlet end of a second normally closed air-operated valve 10 through a pipeline; the leakage alarm probe 1, the linkage exhaust device 3 and the electromagnetic valve 4 are all electrically connected with the leakage alarm host 2.
Specifically, a filtering device is arranged in the linkage explosion-proof exhaust device, and a filtering device 13 is also arranged at the tail end of the evacuation pipeline 12 and is mainly used for filtering dangerous gas so that the discharged gas can reach the discharge standard and does not pollute the environment.
As shown in fig. 2, the linkage alarm and exhaust method of the leakage alarm linkage system described above is as follows:
a) when the leakage alarm probe 1 senses that gas leaks, a signal is transmitted to the leakage alarm host 2, the leakage alarm host 2 sends out an audible and visual alarm to inform a manager of emergency treatment after receiving the signal, and the signal is continuously transmitted to the linkage explosion-proof exhaust device 3 and the electromagnetic valve 4 at the same time;
b) the linkage explosion-proof exhaust device 3 is started after receiving the signal, and performs high-power exhaust to exhaust dangerous gas;
c) after the electromagnetic valve 4 receives the signal, the electromagnetic valve 4 is opened, nitrogen in the first steel cylinder 5 is output to the first normally-opened pneumatic valve 7 and the second normally-opened pneumatic valve 8, the first normally-opened pneumatic valve 7 and the second normally-opened pneumatic valve 8 are closed, the continuous output of dangerous gas is cut off, meanwhile, the nitrogen is transmitted to the first normally-closed pneumatic valve 9 and the second normally-closed pneumatic valve 10, and the first normally-closed pneumatic valve 9 and the second normally-closed pneumatic valve 10 are opened;
d) the nitrogen in the second steel cylinder 6 is output to the second normally closed pneumatic valve 10 which is opened through a pipeline, enters the pipeline to dilute the dangerous gas, and then is exhausted out of the room through an emptying pipeline 12 and a filtering device 13 which are connected to the first normally closed pneumatic valve 9.
The leakage alarm linkage system combines the dangerous gas detection alarm, linkage air exhaust and linkage closing valve, immediately alarms when gas leaks, opens the linkage explosion-proof air exhaust device to exhaust the gas out of a room, simultaneously opens the linkage closing device to stop continuously conveying the gas so as to keep the indoor state free from dangerous gas accumulation, dilutes the gas in a pipeline through the dangerous gas diluting device and exhausts the gas out of the room, and thoroughly eliminates the hidden danger of the dangerous gas in the room.
The above examples are merely representative of the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not intended to limit the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The leakage alarm linkage system is characterized by comprising a first normally-open pneumatic valve, a second normally-open pneumatic valve, a first normally-closed pneumatic valve, a second normally-closed pneumatic valve, a leakage alarm probe, a leakage alarm host, a linkage explosion-proof exhaust device, a linkage closing device and a dangerous gas diluting device;
the air inlet end of the first normally-open pneumatic valve is connected with the output end of the dangerous gas bottle, the air outlet end of the first normally-open pneumatic valve is connected with the air inlet end of the second normally-open pneumatic valve through a main pipeline, and the air outlet end of the second normally-open pneumatic valve is connected with the air using device;
one end of the first normally closed pneumatic valve is connected with the air outlet end of the first normally open pneumatic valve through a main pipeline, the other end of the first normally closed pneumatic valve is connected with an emptying pipeline, and the air outlet end of the second normally closed pneumatic valve is connected with the air outlet end of the first normally open pneumatic valve;
the leakage alarm probe is arranged near the dangerous gas bottle and used for detecting whether gas in the dangerous gas bottle leaks or not;
the leakage alarm host is arranged in a general control room or a manager office and has an alarm function;
the linkage explosion-proof exhaust device is arranged in the cylinder chamber or the movable explosion-proof gas supply cabinet and is used for pumping out indoor dangerous gas;
the linkage closing device is respectively connected with the first normally-open pneumatic valve, the second normally-open pneumatic valve, the first normally-closed pneumatic valve and the second normally-closed pneumatic valve and is used for closing the normally-open pneumatic valve and opening the normally-closed pneumatic valve;
the leakage alarm probe, the linkage exhaust device and the dangerous gas closing device are all electrically connected with the leakage alarm host;
and the dangerous gas diluting device is connected with the air inlet end of the second normally-closed pneumatic valve.
2. The leakage alarm linkage system according to claim 1, wherein the linkage closing device comprises a first steel cylinder filled with inert gas, a gas output mechanism arranged on the first steel cylinder, and an electromagnetic valve, one end of the electromagnetic valve is connected with the output mechanism through a pipeline, and the other end of the electromagnetic valve is respectively connected with the first normally open pneumatic valve, the second normally open pneumatic valve, the first normally closed pneumatic valve and the second normally closed pneumatic valve through pipelines and is simultaneously electrically connected with the leakage alarm host.
3. The leak warning linkage system as recited in claim 1 wherein the hazardous gas dilution means comprises a second cylinder containing inert gas, a gas output mechanism disposed on the second cylinder, the gas output mechanism on the second cylinder being plumbed to the inlet end of a second normally-closed pneumatic valve.
4. The leakage alarm linkage system of claim 1, wherein a warning light or a buzzer is provided on the leakage alarm main unit.
5. A leak alarm linkage system according to claim 2 or claim 3, wherein the inert gas is nitrogen.
6. The leak warning linkage system as recited in claim 1, wherein the evacuation conduit is terminated with a filter device for filtering hazardous gases.
7. A linkage alarm exhaust method is characterized by comprising the following specific steps:
a) when the leakage alarm probe senses that the gas leaks, the signal is transmitted to the leakage alarm host, the leakage alarm host immediately sends an alarm signal to inform a manager of emergency treatment after receiving the signal, and the signal is sent at the same time and continuously transmitted to the linkage explosion-proof exhaust device and the linkage closing device;
b) the linkage explosion-proof exhaust device is started after receiving the signal, and performs high-power exhaust to exhaust dangerous gas;
c) the linkage closing device is opened after receiving the signal, so that the first normally-open pneumatic valve and the second normally-open pneumatic valve are closed, the continuous output of dangerous gas is cut off, and the first normally-closed pneumatic valve and the second normally-closed pneumatic valve are opened;
d) the dangerous gas diluting device penetrates through the first normally closed pneumatic valve and the second normally closed pneumatic valve through the pipeline to discharge the residual dangerous gas in the pipeline out of the room through the emptying pipeline and the filtering device.
8. The method of operating a leak alarm linkage system according to claim 7, wherein the linkage closing means includes a first cylinder filled with nitrogen gas and an electromagnetic valve, the leak alarm host sends a signal to the electromagnetic valve in step c), the electromagnetic valve is opened, the first and second normally open pneumatic valves are closed when the nitrogen gas is transmitted to the first and second normally open pneumatic valves, and the first and second normally closed pneumatic valves are opened when the nitrogen gas is transmitted to the first and second normally closed pneumatic valves.
9. The method of operating a leak alarm linkage system according to claim 7, wherein the hazardous gas diluting device includes a second cylinder containing nitrogen gas and a gas output mechanism provided on the second cylinder, and in the step d), the nitrogen gas is output from the output mechanism, and the hazardous gas in the pipe is diluted by the pipe through a second normally closed pneumatic valve, and then discharged to the outside through the first normally closed pneumatic valve, the emptying pipe and the filtering device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367359.7A CN111197697A (en) | 2018-11-16 | 2018-11-16 | Leakage alarm linkage system and linkage alarm exhaust method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367359.7A CN111197697A (en) | 2018-11-16 | 2018-11-16 | Leakage alarm linkage system and linkage alarm exhaust method |
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| CN111197697A true CN111197697A (en) | 2020-05-26 |
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| CN201811367359.7A Pending CN111197697A (en) | 2018-11-16 | 2018-11-16 | Leakage alarm linkage system and linkage alarm exhaust method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912936A (en) * | 2020-06-22 | 2020-11-10 | 中国科学院过程工程研究所 | Emergency nitrogen charging-forced ventilation combined explosion-proof system and method based on acetylene gas real-time monitoring in high-dust environment |
| CN112325443A (en) * | 2020-09-27 | 2021-02-05 | 中广核工程有限公司 | Emergency exhaust method, system, computer equipment and storage medium |
| CN113933250A (en) * | 2021-09-22 | 2022-01-14 | 苏州大学 | Gas detection device, gas detection method and computer equipment |
| CN115014651A (en) * | 2022-08-04 | 2022-09-06 | 西安四腾环境科技有限公司 | Online detection device for leakage of air exhaust filtering unit in P3-level biosafety experiment |
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| CN201997029U (en) * | 2010-12-21 | 2011-10-05 | 中色科技股份有限公司 | High-pressure carbon dioxide fire extinguishing system |
| CN202040537U (en) * | 2011-03-24 | 2011-11-16 | 上海盛韬半导体科技有限公司 | Full automatic special gas conveying cabinet |
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| CN112325443B (en) * | 2020-09-27 | 2021-08-31 | 中广核工程有限公司 | Emergency exhaust method, system, computer equipment and storage medium |
| CN113933250A (en) * | 2021-09-22 | 2022-01-14 | 苏州大学 | Gas detection device, gas detection method and computer equipment |
| CN113933250B (en) * | 2021-09-22 | 2024-07-30 | 苏州大学 | Gas detection device, gas detection method and computer equipment |
| CN115014651A (en) * | 2022-08-04 | 2022-09-06 | 西安四腾环境科技有限公司 | Online detection device for leakage of air exhaust filtering unit in P3-level biosafety experiment |
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