CN201060203Y - Suction type combustible gas monitoring alarming device - Google Patents
Suction type combustible gas monitoring alarming device Download PDFInfo
- Publication number
- CN201060203Y CN201060203Y CNU2007200707412U CN200720070741U CN201060203Y CN 201060203 Y CN201060203 Y CN 201060203Y CN U2007200707412 U CNU2007200707412 U CN U2007200707412U CN 200720070741 U CN200720070741 U CN 200720070741U CN 201060203 Y CN201060203 Y CN 201060203Y
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- sampling
- bleeding
- branch road
- gas
- pump
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Abstract
The utility model discloses a suction type combustible gas monitoring alarm device, which includes a suction loop, a combustible gas examining loop, and an alarm control unit. The suction loop includes a plurality of parallel connected suction branch circuits which are composed of sampling electromagnetic valves connected to the outlet end of a sampling pipe by a sampling pipe and an input end, a sampling pump which is connected with the output end of the sampling electromagnetic valves by pipelines in parallel, and a first vent-pipe which is connected with the sampling pump and is communicated to the sampling gas vent. The examining loop includes a plurality of examining electromagnetic valves of which the input ends are respectively connected with the outlet ends of the sampling pipes, an examining pump which is connected through pipelines after being connected with the output ends of the examining electromagnetic valves in parallel, a combustible gas examining device which is connected with the suction opening or the output opening of the examining pump, and a second vent-pipe which is connected with the examination gas vent of the examining device, therefore, the period of once system cycle examination is shortened.
Description
Technical field
The utility model relates to a kind of device that on oil carrier, chemical tanker, liquefied gas carrier and offshore production platform, hazardous materials transportation ship, the operation ship combustable gas concentration of the easy accumulation region of inflammable gas is carried out monitoring, alarming that is mainly used in.
Background technology
At present, inflammable gas monitoring device peculiar to vessel has two kinds of patterns, and a kind of is fixed, realizes the monitoring, alarming function of this device, need be furnished with the combustible gas detector with the monitor area equivalent amount.This equipment is used for the dry type environment, and can't use in a humid environment.Another kind is portable, realizes the monitoring, alarming function of this device, need have a tester to carry portable inflammable gas monitoring device, extracts sample gas and tests to each monitor area, therefore uses cumbersome.
Summary of the invention
The purpose of this utility model is to provide a kind of more economical inflammable gas of drawing-in type efficiently monitoring alarm.
The purpose of this utility model is achieved by following technical scheme: a kind of drawing-in type inflammable gas monitoring alarm, comprise the detection loop and the controlling alarm unit of the loop of bleeding, inflammable gas, wherein,
The described loop of bleeding comprises some being connected the branch road of bleeding that the sampling solenoid valve of stopple coupon endpiece forms, being reached and a downtake pipe that leads to the gas sampled escape hole that is connected with this sampling pump by the sampling pump that pipeline is connected with output terminals of these sampling solenoid valves back that is connected in parallel by a stopple coupon and an input end of being connected in parallel;
Described detection loop comprise detection solenoid valve that some input ends are connected with the endpiece of stopple coupon respectively, one with these output terminals that detect solenoid valves testing pump and a combustible gas detector that is connected with testing pump pump orifice or delivery outlet and second exhaust pipe that is connected with the detected gas escape hole of this detecting device that the back is connected by pipeline that be connected in parallel.
Under the first sampling solenoid valve open mode of bleeding on the branch road, bleed in gas pumping to the first stopple coupon of sampling pump in the loop this branch road check point, remaining gas is discharged from the gas sampled escape hole by downtake pipe, after a period of time, this closed electromagnetic valve of taking a sample, first the bleed branch road sampling finishes, testing pump brings into operation simultaneously, being connected the first detection solenoid valve of bleeding on the branch road opens, tested gas is pumped to combustible gas detector to be detected, testing pump was out of service after the detection loop detected the stipulated time, detecting solenoid valve also closes, the second sampling solenoid valve of bleeding branch road is opened afterwards, begins another sampling and detects circulation, by that analogy until last branch road of bleeding.
Above-mentioned drawing-in type inflammable gas monitoring alarm, wherein, also comprise a scavenger circuit, this scavenger circuit comprises that the clean air front pump, a reduction valve, the solenoid purge valve and that are connected in series by pipeline successively are contained in the clean air pressure switch of reduction valve to the solenoid purge valve pipeline, and the output terminal of solenoid purge valve is connected on the input end of combustible gas detector.
Under the first sampling solenoid valve open mode of bleeding on the branch road, bleed in gas pumping to the first stopple coupon of sampling pump in the loop this branch road check point, remaining gas is discharged from the gas sampled escape hole by downtake pipe, after a period of time, this closed electromagnetic valve of taking a sample, first the bleed branch road sampling finishes, testing pump brings into operation simultaneously, being connected the first detection solenoid valve of bleeding on the branch road opens, tested gas is pumped to combustible gas detector to be detected, testing pump was out of service after the detection loop detected the stipulated time, detecting solenoid valve also closes, the second sampling solenoid valve of bleeding branch road is opened simultaneously, the sampling that branch road is bled in beginning second, the solenoid purge valve in the scavenger circuit is also opened, so that clean air begins the cleaning of combustible gas detecting device, afterwards to second gas detection of bleeding branch road, with this circular flow until last branch road of bleeding.
Above-mentioned drawing-in type inflammable gas monitoring alarm, wherein, described detection loop comprises that also a flow regulator, between the input end that is connected in series in testing pump and combustible gas detector successively measures solenoid valve and and be contained in the detected pressures sensor of testing pump to the flow regulator pipeline.
Above-mentioned drawing-in type inflammable gas monitoring alarm, wherein, the sampling pump in the described loop of bleeding to the output terminal of the solenoid valve of taking a sample gets and also connects a sampling pressure sensor on the pipeline.
Above-mentioned drawing-in type inflammable gas monitoring alarm, wherein, the described loop of bleeding also comprises ball valve and the flame isolator between the input end that is connected in series in stopple coupon entrance point and sampling solenoid valve successively.
Above-mentioned drawing-in type inflammable gas monitoring alarm, wherein, reduction valve, clean air pressure switch and the solenoid purge valve in the sampling pump in the described loop of bleeding, sampling solenoid valve, flame isolator, detection loop and the scavenger circuit all is located in the casing.
Above-mentioned drawing-in type inflammable gas monitoring alarm wherein, is provided with detector in a case in the described casing.
Above-mentioned drawing-in type inflammable gas monitoring alarm, wherein, the entrance point of described each stopple coupon connects a non-return valve respectively.
Drawing-in type inflammable gas monitoring alarm of the present utility model has following advantage:
1. adopt a sampling pump and a testing pump, thereby shortened systemic circulation and detected the once used time.
2. use the scavenger circuit can improve the precision of gas detection.
3. can improve the security of system by the detector in the casing.
4. adding loaded check valve by the inlet end at stopple coupon can make system employs detect in the inflammable gas of ballast for cruising water tank.
Description of drawings
Fig. 1 is drawing-in type inflammable gas monitoring alarm monitoring principle figure of the present utility model;
Fig. 2 is the detection case layout of drawing-in type inflammable gas monitoring alarm of the present utility model;
Fig. 3 is the installation diagram of the non-return valve of drawing-in type inflammable gas monitoring alarm of the present utility model.
Embodiment
See also Fig. 1, drawing-in type inflammable gas monitoring alarm of the present utility model comprises detection loop 2, a scavenger circuit 3 and the controlling alarm unit (not shown) of bleed loop 1, inflammable gas.Wherein, the loop 1 of bleeding comprises some branch roads of bleeding that are connected in parallel, a sampling pressure sensor 12, a sampling pump 13 and downtake pipe 14.The sampling solenoid valve 111 that route one stopple coupon 110 and an input end be connected the stopple coupon endpiece of bleeding is formed, also comprise ball valve 112 and flame isolator 113 between entrance point that is connected in series in stopple coupon 110 successively and the input end of the taking a sample solenoid valve 111, this flame isolator 113 prevents that flame from entering sampling line in the detection case.Sampling pressure sensor 12 and sampling pump 13 are that the back that is connected in parallel of the output terminals with these sampling solenoid valves 11 is connected in series successively by pipeline, the gas that sampling pump 13 is used to extract each check point through stopple coupon 110 to the detection case sampling line.Sampling pressure sensor 12 is used to measure the pressure in loop 1 of bleeding, the bleed state in loop 1 of monitoring, and (4～20mA) current signals are to Computer Processing in output.Downtake pipe 14 with lead to the gas sampled escape hole after sampling pump 13 is connected.
Detect detection solenoid valve 211, a testing pump 22, a flow regulator 24, a measurement solenoid valve 25, a detected pressures sensor 23, a combustible gas detector 26 and a second exhaust pipe 27 that loop 2 comprises that some input ends are connected with the endpiece of stopple coupon 110 respectively.Testing pump 22 and these output terminals that detect solenoid valves 21 back that is connected in parallel is connected by pipeline, and its extracts via the loop 1 of bleeding 26 detections to the gas that detects loop 1 to combustible gas detector.Combustible gas detector 26 is used to detect each gas that leads to stopple coupon 110 and output, and (4～20mA) current signals are to Computer Processing, and it is connected the pump orifice or the delivery outlet of testing pump 22.Flow regulator 24 and measurement solenoid valve 25 are connected in series between the input end of testing pump 22 and combustible gas detector 26 successively.Detected pressures sensor 23 is contained in testing pump 22 to the pipeline of flow regulator 24, with the gas flow of flow regulator 24 control detection pipelines.Second exhaust pipe 27 is connected the detected gas escape hole of combustible gas detector 26.
Scavenger circuit 3 comprises a clean air front pump 30, a reduction valve 31, a solenoid purge valve 32 and clean air pressure switch 33.Clean air front pump 30, reduction valve 31 and solenoid purge valve 32 are connected in series by pipeline successively, and the output terminal of solenoid purge valve 32 is connected on the input end of combustible gas detector 26.Clean air pressure switch 33 is contained in reduction valve 31 to the pipeline of solenoid purge valve 32, is used for the pressure of monitoring cleaning air.
Under first sampling solenoid valve 111 open modes of bleeding on the branch road, bleed in gas pumping to the first stopple coupon 110 of sampling pump 13 in the loop 1 this branch road check point, remaining gas is discharged from the gas sampled escape hole by downtake pipe 14, after a period of time, this sampling solenoid valve 111 cuts out, first the bleed branch road sampling finishes, testing pump 22 brings into operation simultaneously, being connected the first detection solenoid valve 211 of bleeding on the branch road opens, tested gas is pumped to combustible gas detector 26 to be detected, testing pump 22 was out of service after detection loop 2 detected the stipulated time, detecting solenoid valve 21 also closes, the second sampling solenoid valve 112 of bleeding branch road is opened simultaneously, the sampling that branch road is bled in beginning second, the solenoid purge valve 32 in the scavenger circuit 3 is also opened, so that clean air begins cleaning of combustible gas detecting device 26, afterwards to second gas detection of bleeding branch road, with this circular flow until last branch road of bleeding.
See also Fig. 2 again, the reduction valve 31, clean air pressure switch 33 and the solenoid purge valve 32 that bleed sampling pump 13 in the loop 1, all sampling solenoid valve 11 and flame isolator 113, detect in loop 2 and the scavenger circuit 3 all are located in the detection casing 5, be provided with detector 4 in a case in this casing 5, be used to measure the pressure of signal piping, the state of monitoring signal piping, (4～20mA) current signals are to Computer Processing in output.A certain branch road in the loop 1 of bleeding and detect loop 2 because stop up or sampling pump 13 and testing pump 22 are not worked, the solenoid valve of this branch road such as does not open at situation and the line pressure that causes is undesired, can deliver to 4～0mA signal of control alarm unit and report to the police and control more by detecting detectors 4 in the casing 5, this branch road is not detected in next one circulation.
See also 3 again, this device is equipped with the non-return valve 114 that prevents to have in the cabin water on the stopple coupon 110 tunnel of each check point 6, ball float action when in check point 6 cabins water being arranged in the non-return valve 114, the loop 1 of bleeding is closed, and gets over control by detection case internal pressure detector 4.
The detection principle of drawing-in type inflammable gas monitoring alarm of the present utility model: branch road 11 is an example to bleed, gas is pumped to stopple coupon 110 imports by sampling pump 13 and enters the loop 1 of bleeding, through sampling solenoid valve 111, sampling pump 13 is discharged from the gas sampled escape hole, detecting solenoid valve 21 after a period of time opens, testing pump 22 operations, gas is pumped to combustible gas detector 26 by testing pump 22 and carries out gas detection, the first sampling solenoid valve 111 of bleeding branch road cuts out, first via sampling finishes, the second sampling solenoid valve 121 of bleeding branch road is opened the second tunnel sampling beginning, detecting solenoid valve 211 after a period of time closes, solenoid purge valve 32 is opened, and clean air begins cleaning of combustible gas detecting device 26, by that analogy until last road.Cycle detection under automatic ruuning situation.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, the utility model can also change and more mode, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (8)
1. drawing-in type inflammable gas monitoring alarm comprises the detection loop and the controlling alarm unit of the loop of bleeding, inflammable gas it is characterized in that,
The described loop of bleeding comprises some being connected the branch road of bleeding that the sampling solenoid valve of stopple coupon endpiece forms, being reached and a downtake pipe that leads to the gas sampled escape hole that is connected with this sampling pump by the sampling pump that pipeline is connected with output terminals of these sampling solenoid valves back that is connected in parallel by a stopple coupon and an input end of being connected in parallel;
Described detection loop comprise detection solenoid valve that some input ends are connected with the endpiece of stopple coupon respectively, one with these output terminals that detect solenoid valves testing pump and a combustible gas detector that is connected with testing pump pump orifice or delivery outlet and second exhaust pipe that is connected with the detected gas escape hole of this detecting device that the back is connected by pipeline that be connected in parallel.
Under the first sampling solenoid valve open mode of bleeding on the branch road, bleed in gas pumping to the first stopple coupon of sampling pump in the loop this branch road check point, remaining gas is discharged from the gas sampled escape hole by downtake pipe, after a period of time, this closed electromagnetic valve of taking a sample, first the bleed branch road sampling finishes, testing pump brings into operation simultaneously, being connected the first detection solenoid valve of bleeding on the branch road opens, tested gas is pumped to combustible gas detector to be detected, testing pump was out of service after the detection loop detected the stipulated time, detecting solenoid valve also closes, the second sampling solenoid valve of bleeding branch road is opened afterwards, begins another sampling and detects circulation, by that analogy until last branch road of bleeding.
2. as claim 1 described drawing-in type inflammable gas monitoring alarm, it is characterized in that, also comprise a scavenger circuit, this scavenger circuit comprises that the clean air front pump, a reduction valve, the solenoid purge valve and that are connected in series by pipeline successively are contained in the clean air pressure switch of reduction valve to the solenoid purge valve pipeline, and the output terminal of solenoid purge valve is connected on the input end of combustible gas detector.
Under the first sampling solenoid valve open mode of bleeding on the branch road, bleed in gas pumping to the first stopple coupon of sampling pump in the loop this branch road check point, remaining gas is discharged from the gas sampled escape hole by downtake pipe, after a period of time, this closed electromagnetic valve of taking a sample, first the bleed branch road sampling finishes, testing pump brings into operation simultaneously, being connected the first detection solenoid valve of bleeding on the branch road opens, tested gas is pumped to combustible gas detector to be detected, testing pump was out of service after the detection loop detected the stipulated time, detecting solenoid valve also closes, the second sampling solenoid valve of bleeding branch road is opened simultaneously, the sampling that branch road is bled in beginning second, the solenoid purge valve in the scavenger circuit is also opened, so that clean air begins the cleaning of combustible gas detecting device, afterwards to second gas detection of bleeding branch road, with this circular flow until last branch road of bleeding.
3. as claim 1 described drawing-in type inflammable gas monitoring alarm, it is characterized in that described detection loop comprises that also a flow regulator between the input end that is connected in series in testing pump and combustible gas detector successively, measures solenoid valve and and be contained in the detected pressures sensor of testing pump to the flow regulator pipeline.
4. as claim 1 described drawing-in type inflammable gas monitoring alarm, it is characterized in that the sampling pump in the described loop of bleeding to the output terminal of the solenoid valve of taking a sample gets and also connects a sampling pressure sensor on the pipeline.
5. as claim 1 described drawing-in type inflammable gas monitoring alarm, it is characterized in that the described loop of bleeding also comprises ball valve and the flame isolator between the input end that is connected in series in stopple coupon entrance point and sampling solenoid valve successively.
6. as claim 1 to 5 described drawing-in type inflammable gas monitoring alarm, it is characterized in that reduction valve, clean air pressure switch and solenoid purge valve in the sampling pump in the described loop of bleeding, sampling solenoid valve, flame isolator, detection loop and the scavenger circuit all are located in the casing.
7. as claim 5 described drawing-in type inflammable gas monitoring alarms, it is characterized in that, be provided with detector in a case in the described casing.
8. as claim 1 described drawing-in type inflammable gas monitoring alarm, it is characterized in that the entrance point of described each stopple coupon connects a non-return valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200707412U CN201060203Y (en) | 2007-06-07 | 2007-06-07 | Suction type combustible gas monitoring alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200707412U CN201060203Y (en) | 2007-06-07 | 2007-06-07 | Suction type combustible gas monitoring alarming device |
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| CN201060203Y true CN201060203Y (en) | 2008-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200707412U Expired - Fee Related CN201060203Y (en) | 2007-06-07 | 2007-06-07 | Suction type combustible gas monitoring alarming device |
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| CN (1) | CN201060203Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245762A (en) * | 2013-05-10 | 2013-08-14 | 国家电网公司 | Flue gas distribution measuring device and method of SCR (Selective Catalytic Reduction) flue gas denitration system |
| CN104237473A (en) * | 2014-10-17 | 2014-12-24 | 赵建国 | Automatic checking system for remotely checking and monitoring online exhaust gas monitoring system |
| CN104329085A (en) * | 2014-10-28 | 2015-02-04 | 成都创源油气技术开发有限公司 | Component monitoring system in shale gas exploitation process |
| CN105158419A (en) * | 2015-08-25 | 2015-12-16 | 江苏远望仪器有限公司 | Pumping type gas sampling monitoring device |
| CN106053735A (en) * | 2016-07-13 | 2016-10-26 | 广州中国科学院沈阳自动化研究所分所 | Monitoring system and monitoring method for ship hazardous gases |
| CN109406220A (en) * | 2017-08-16 | 2019-03-01 | 咸东锡 | Gas sample collector and gas leak detection apparatus including it |
| CN109490249A (en) * | 2018-10-22 | 2019-03-19 | 安徽辰控智能科技有限公司 | Combustible gas monitoring equipment, method and system |
| CN112201012A (en) * | 2020-10-29 | 2021-01-08 | 中国船舶工业集团公司第七0八研究所 | Gas detection-based device and method for monitoring fuel leakage in water tank |
-
2007
- 2007-06-07 CN CNU2007200707412U patent/CN201060203Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245762A (en) * | 2013-05-10 | 2013-08-14 | 国家电网公司 | Flue gas distribution measuring device and method of SCR (Selective Catalytic Reduction) flue gas denitration system |
| CN104237473A (en) * | 2014-10-17 | 2014-12-24 | 赵建国 | Automatic checking system for remotely checking and monitoring online exhaust gas monitoring system |
| CN104237473B (en) * | 2014-10-17 | 2016-06-08 | 河北银发瑞洁环境科技有限公司 | A kind of automatic selective examination system that smoke on-line monitoring system is carried out remotely selective examination, monitoring |
| CN104329085A (en) * | 2014-10-28 | 2015-02-04 | 成都创源油气技术开发有限公司 | Component monitoring system in shale gas exploitation process |
| CN105158419A (en) * | 2015-08-25 | 2015-12-16 | 江苏远望仪器有限公司 | Pumping type gas sampling monitoring device |
| CN106053735A (en) * | 2016-07-13 | 2016-10-26 | 广州中国科学院沈阳自动化研究所分所 | Monitoring system and monitoring method for ship hazardous gases |
| CN109406220A (en) * | 2017-08-16 | 2019-03-01 | 咸东锡 | Gas sample collector and gas leak detection apparatus including it |
| CN109490249A (en) * | 2018-10-22 | 2019-03-19 | 安徽辰控智能科技有限公司 | Combustible gas monitoring equipment, method and system |
| CN112201012A (en) * | 2020-10-29 | 2021-01-08 | 中国船舶工业集团公司第七0八研究所 | Gas detection-based device and method for monitoring fuel leakage in water tank |
| CN112201012B (en) * | 2020-10-29 | 2024-04-12 | 中国船舶工业集团公司第七0八研究所 | Water tank internal combustion oil leakage monitoring device and monitoring method based on gas detection |
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| C14 | Grant of patent or utility model | ||
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20140607 |