CN103389186A - Gas detection system - Google Patents

Gas detection system Download PDF

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Publication number
CN103389186A
CN103389186A CN2012101396350A CN201210139635A CN103389186A CN 103389186 A CN103389186 A CN 103389186A CN 2012101396350 A CN2012101396350 A CN 2012101396350A CN 201210139635 A CN201210139635 A CN 201210139635A CN 103389186 A CN103389186 A CN 103389186A
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CN
China
Prior art keywords
gas
specific
detector
detection
sensitive
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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
Application number
CN2012101396350A
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Chinese (zh)
Inventor
蒋峥嵘
蔡峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI CHEMICAL INDUSTRY PARK PUBLIC PIPE RACK Co Ltd
Original Assignee
SHANGHAI CHEMICAL INDUSTRY PARK PUBLIC PIPE RACK Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI CHEMICAL INDUSTRY PARK PUBLIC PIPE RACK Co Ltd filed Critical SHANGHAI CHEMICAL INDUSTRY PARK PUBLIC PIPE RACK Co Ltd
Priority to CN2012101396350A priority Critical patent/CN103389186A/en
Publication of CN103389186A publication Critical patent/CN103389186A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a gas detection system which is arranged close to a gas conveying pipeline to monitor gas leakage. The gas detection system comprises a plurality of gas detectors, a wire communication line, a central controller and an alarm device. The gas detectors are arranged close to a gas conveying pipeline used for conveying specific gas to monitor leakage of the specific gas, and when the leakage of the specific gas is detected, a detection signal is sent. The wire communication line is connected with the gas detectors and the central controller. The central controller is used for receiving the detection signal sent by the gas detectors through the wire communication line, analyzing the positions of the gas detectors and the variety of the specific gas according to the detection signal, and sending the positions of the gas detectors and the variety of the specific gas to the alarm device. The alarm device comprises a buzzer and a display screen and is connected to the central controller; the buzzer is started to give an alarm after the alarm device receives a signal sent by the central controller; the positions of the gas detectors and the variety of the specific gas are displayed on the display screen.

Description

Gas detection system
Technical field
The present invention relates to the safety technique of pipeline transmission, relate in particular to a kind of gas detection system for gas-monitoring conveyance conduit Leakage Gas situation.
Background technology
In the industries such as oil, chemical industry, coal, electric power, metallurgy, coking, need to use a large amount of reacting gas, be all much inflammable and explosive or toxic and harmful in these gases.Due in above-mentioned industry to being in great demand of gas, therefore typically using gas transmission pipeline carries these gas.Gas transmission pipeline can be laid with the gas of realizing long distance and carry in vast scope, pipeline is made by metal or corrosion resistant nonmetallic materials usually, although pipeline is firmly, be in use procedure for a long time, also there will be unavoidably the situation of leakage., because mostly these gases are inflammable and explosive or poisonous and hazardous gas, can have a strong impact on surrounding environment after occurring leaking, and bring potential safety hazard.
Therefore need to monitor the leakage situation of gas at the along the line of gas transmission pipeline, can in time find and repair when Leakage Gas occurring, avoid causing serious consequence.
Summary of the invention
The present invention is intended to propose a kind of gas detection system of the Leakage Gas situation in can the gas-monitoring conveyance conduit.
According to one embodiment of the invention, a kind of gas detection system is proposed, to arrange with gas-monitoring and leak near gas transmission pipeline, this gas detection system comprises several gas detectors, wire communication line, central controller and warning device.The leakage that each gas detector arranges to monitor this specific gas near the gas transmission pipeline of carrying specific gas, wherein, each gas detector sends detection signal while the leakage of specific gas being detected.Wire communication line connects several gas detectors and central controller.The detection signal that central controller sends by wire communication line receiver gases detector, resolve the position of this gas detector and the kind of this specific gas according to detection signal, the kind of the position of gas detector and specific gas is sent to warning device.Warning device comprises hummer and display screen, warning device is connected to central controller, warning device starts buzzer warning after the kind of the position that receives the gas detector that central controller sends and specific gas, and in the position that shows the screen display gas detector and the kind of specific gas.
In one embodiment, gas detector comprises shell, gas collection chamber, air exhaust duct, gas sensitive device, communication device and power supply.Shell has the lid that can open, and lid is connected by seal ring seal with shell.The gas collection chamber arranges in the enclosure.Air exhaust duct extends from the bottom of shell, and air exhaust duct is communicated to the gas collection chamber, is provided with extraction fan in air exhaust duct, extraction fan extract extraneous gas via air exhaust duct to the gas collection chamber.Gas sensitive device is arranged in the gas collection chamber, and gas sensitive device is responsive to specific gas, sends detection signal when specific gas being detected.The electrical connection of communication device and gas sensitive device, communication device is connected to wire communication line, and communication device receives the detection signal that gas sensitive device sends and by wire communication line, transmits this detection signal.Power supply is connected to extraction fan, gas sensitive device and communication device and is these device power supplies.
In one embodiment, cover top portion has vent port, and vent port is communicated to described gas collection chamber.
In one embodiment, open cap is to change different gas sensitive devices, in order to detect required specific gas.
In one embodiment, communication device sends gas detector coding and gas sensitive device coding when sending detection signal.
In one embodiment, central controller comprises a coded data storehouse, records the corresponding relation of gas detector coding and gas detector position in the coded data storehouse, and the corresponding relation of gas sensitive device coding and specific gas kind.
Gas detection system of the present invention can be changed gas sensitive device according to demand, to be adapted to detect different Leakage Gas situations, extraction fan in gas detection system can extract extraneous gas and collect in the gas collection chamber to strengthen the concentration of the specific gas in the gas collection chamber, thereby improves the sensitivity that detects
Description of drawings
Fig. 1 has disclosed the structured flowchart according to the gas detection system of one embodiment of the invention.
Fig. 2 has disclosed the structural drawing according to the gas detector in the gas detection system of one embodiment of the invention.
Embodiment
With reference to shown in Figure 1, the present invention has disclosed a kind of gas detection system, this gas detection system arranges that near gas transmission pipeline this gas detection system 100 comprises several gas detectors 102, wire communication line 104, central controller 106 and warning device 108 with the gas-monitoring leakage.
The leakage that each gas detector 102 in several gas detectors 102 arranges to monitor this specific gas near the gas transmission pipeline of carrying specific gas.Each gas detector 102 sends detection signal while the leakage of specific gas being detected.Fig. 2 has disclosed the structural drawing according to the gas detector 102 in the gas detection system 100 of one embodiment of the invention.As shown in Figure 2, this gas detector 102 comprises shell 120, gas collection chamber 122, air exhaust duct 124, gas sensitive device 126, communication device 128 and power supply 130.Shell 120 has the lid 121 that can open, and lid 121 is connected by seal ring seal with shell 120, the common inner space that forms of the shell 120 after connection and lid 121.Gas collection chamber 122 is arranged in shell 120, and the inner space that is jointly formed by shell 120 and lid 121 is limited.Air exhaust duct 124 extends from the bottom of shell 120, and air exhaust duct 124 is communicated to gas collection chamber 122, is provided with extraction fan 125 in air exhaust duct 124, extraction fan 125 extract extraneous gas via air exhaust duct 124 to gas collection chamber 122.The decimate action of extraction fan 125 can make gaseous tension in gas collection chamber 122 a little more than outside, thereby makes the various gas concentrations in gas collection chamber 122 all higher than outside, so that detect.In the embodiment shown in Figure 2, the top of shell 120 has vent port 123, and vent port 123 is communicated to gas collection chamber 122.Vent port 123 can be discharged the gas in gas collection chamber 122, makes the pressure in gas collection chamber 122 be unlikely to too high.Gas sensitive device 126 is arranged in gas collection chamber 122, and 122 pairs of specific gas sensitivities of gas sensitive device, send detection signal when specific gas being detected.Such as, different gas sensitive devices can be designed to for SiH4 or C2F6 responsive, and when SiH4 or C2F6 being detected, these gas sensitive devices will send detection signal.In an embodiment of the present invention, the gas sensitive device 126 in detector 102 is designed to and can changes.Open cap 121 just can be changed different gas sensitive device 126, to meet the detection demand for different specific gas.The design of the gas sensitive device that this kind can be changed makes the range of application of detector more extensively flexible.Communication device 128 and gas sensitive device 126 electrical connections, communication device 128 is connected to wire communication line 104, and communication device 128 receives detection signal that gas sensitive device 126 sends and by wire communication line 104 these detection signals of transmission.Power supply 130 is connected to extraction fan 125, gas sensitive device 126 and communication device 128, is these device power supplies.
Wire communication line 104 connects several gas detectors 102 and central controller 106.In this gas detection system 100, all communication all adopts wire communication line 104 to realize, and does not use Radio Transmission Technology.Wire communication line 104 of the present invention all is arranged in the pipeline of sealing,, because there is a large amount of flammable explosive gas in these gases, adopts wireless communication technology to have certain dangerous hidden danger, therefore with cable communicating technology, carries out data transmission.
The detection signal that central controller 106 sends by wire communication line 104 receiver gases detectors 102, central controller 106 is resolved the position of this gas detector and the kind of this specific gas according to detection signal, and the kind of the position of gas detector 102 and specific gas is sent to warning device 108.In one embodiment, central controller 106 comprises a coded data storehouse 107, records the corresponding relation of gas detector coding and gas detector position in the coded data storehouse, and the corresponding relation of gas sensitive device coding and specific gas kind.And communication device 128 sends gas detector coding and gas sensitive device coding when sending detection signal, and central controller 106 just can be determined the position of gas detector and the kind of specific gas according to gas detector coding and gas sensitive device coding.
Warning device 108 comprises hummer 109 and display screen 110, warning device 108 is connected to central controller 106, warning device 108 starts hummer 109 after the kind of the position that receives the gas detector that central controller 106 sends and specific gas reports to the police, and shows the position of gas detector and the kind of specific gas on display screen 110.
Gas detection system of the present invention can be changed gas sensitive device according to demand, to be adapted to detect different Leakage Gas situations, extraction fan in gas detection system can extract extraneous gas and collect in the gas collection chamber to strengthen the concentration of the specific gas in the gas collection chamber, thereby improves the sensitivity that detects.

Claims (6)

1. a gas detection system, arrange with gas-monitoring and leak near gas transmission pipeline, and it is characterized in that, described gas detection system comprises:
Several gas detectors, the leakage that each gas detector arranges to monitor this specific gas near the gas transmission pipeline of carrying specific gas, wherein, each gas detector sends detection signal while the leakage of specific gas being detected;
Wire communication line, connect several gas detectors and central controller;
Central controller, the detection signal that sends by wire communication line receiver gases detector, resolve the position of this gas detector and the kind of this specific gas according to described detection signal, the kind of the position of gas detector and specific gas is sent to warning device;
Warning device, comprise hummer and display screen, warning device is connected to central controller, warning device starts buzzer warning after the kind of the position that receives the gas detector that central controller sends and specific gas, and in the position that shows the screen display gas detector and the kind of specific gas.
2. gas detection system as claimed in claim 1, is characterized in that, described gas detector comprises:
Shell, shell have the lid that can open, and described lid is connected by seal ring seal with shell;
The gas collection chamber, be arranged in described shell;
Air exhaust duct, air exhaust duct extends from the bottom of shell, air exhaust duct is communicated to described gas collection chamber, is provided with extraction fan in air exhaust duct, extraction fan extract extraneous gas via air exhaust duct to described gas collection chamber;
Gas sensitive device, gas sensitive device are arranged in described gas collection chamber, and gas sensitive device is responsive to specific gas, sends detection signal when described specific gas being detected;
Communication device, with gas sensitive device electrical connection, communication device is connected to described wire communication line, and communication device receives the detection signal that gas sensitive device sends and by described wire communication line, transmits this detection signal;
Power supply, be connected to described extraction fan, gas sensitive device and communication device and be these device power supplies.
3. gas detection system as claimed in claim 2, is characterized in that, described cover top portion has vent port, and vent port is communicated to described gas collection chamber.
4. gas detection system as claimed in claim 2, is characterized in that, opens described lid, changes different gas sensitive devices to detect required specific gas.
5. gas detection system as claimed in claim 4, is characterized in that, described communication device sends gas detector coding and gas sensitive device coding when sending detection signal.
6. gas detection system as claimed in claim 5, it is characterized in that, described central controller comprises a coded data storehouse, records the corresponding relation of gas detector coding and gas detector position in the coded data storehouse, and the corresponding relation of gas sensitive device coding and specific gas kind.
CN2012101396350A 2012-05-08 2012-05-08 Gas detection system Pending CN103389186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101396350A CN103389186A (en) 2012-05-08 2012-05-08 Gas detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101396350A CN103389186A (en) 2012-05-08 2012-05-08 Gas detection system

Publications (1)

Publication Number Publication Date
CN103389186A true CN103389186A (en) 2013-11-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106198883A (en) * 2016-08-01 2016-12-07 苏州优谱德精密仪器科技有限公司 Gas-detecting device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0743241A (en) * 1993-07-26 1995-02-14 Chiyoda Corp Method for monitoring gas leakage
JPH11101705A (en) * 1997-09-29 1999-04-13 Osaka Gas Co Ltd Gas leak tester
JP2006090891A (en) * 2004-09-24 2006-04-06 New Cosmos Electric Corp Gas detector
CN101726465A (en) * 2009-12-25 2010-06-09 重庆大学 Mini-array poisonous gas detecting instrument
CN201964145U (en) * 2010-12-31 2011-09-07 浙江师范大学 Detecting device for pipeline blocking
CN101322021B (en) * 2005-10-07 2012-03-14 M-B-W有限公司 Gas line leak evacuation and monitoring system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0743241A (en) * 1993-07-26 1995-02-14 Chiyoda Corp Method for monitoring gas leakage
JPH11101705A (en) * 1997-09-29 1999-04-13 Osaka Gas Co Ltd Gas leak tester
JP2006090891A (en) * 2004-09-24 2006-04-06 New Cosmos Electric Corp Gas detector
CN101322021B (en) * 2005-10-07 2012-03-14 M-B-W有限公司 Gas line leak evacuation and monitoring system
CN101726465A (en) * 2009-12-25 2010-06-09 重庆大学 Mini-array poisonous gas detecting instrument
CN201964145U (en) * 2010-12-31 2011-09-07 浙江师范大学 Detecting device for pipeline blocking

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106198883A (en) * 2016-08-01 2016-12-07 苏州优谱德精密仪器科技有限公司 Gas-detecting device

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Application publication date: 20131113

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