CN201974322U - Active-type online gas-monitoring device - Google Patents
Active-type online gas-monitoring device Download PDFInfo
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- CN201974322U CN201974322U CN2011200313826U CN201120031382U CN201974322U CN 201974322 U CN201974322 U CN 201974322U CN 2011200313826 U CN2011200313826 U CN 2011200313826U CN 201120031382 U CN201120031382 U CN 201120031382U CN 201974322 U CN201974322 U CN 201974322U
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Abstract
The utility model discloses an active-type online gas-monitoring device which is widely applied to the rapid acquisition of gas at a sampling point in a severe environment and used for instant monitoring and information feedback. An on-site monitoring point (12) is placed at the lower part of a coarse filtering net (1), the coarse filtering net (1) is connected with a dust-removing filtering device (3) through a transmission pipeline (2), one side of a sensor (5) is connected with the dust-removing filtering device (3) through a mixed-gas tank (4), and the other side of the sensor (5) is connected with a tail-gas processing device (13) through a flow-indicating vacuum pump (6). Because a gas pipeline is used by the active-type online gas-monitoring device, an analysis instrument or the sensor is away from a severe measuring environment, the active-type online gas-monitoring device is convenient to maintain, the measuring sensitivity is enhanced, and the potential safety hazard and the production cost are lowered. Air is then measured after being mixed by utilizing intelligent automatic control, the potential safety hazard of easy-to-explode in on-site monitoring is eliminated, and the secondary pollution caused by the measurement is avoided.
Description
Technical field: the utility model relates to a kind of quick collection that is widely used in rugged surroundings sampled point gas, carries out the active online gas controlling device that at-once monitor and information feedback are used.
Background technology: at present in the colliery, ambiance in the abominable and hazardous environment such as steel-making, especially the monitoring of poisonous and harmful or flammable explosive gas, often sensor is directly installed in the measurement environment and directly contacts with measurement gas, harsh measurement conditions often causes sensor to destroy or needs are often safeguarded, often need big quantity sensor and deploy to ensure effective monitoring and control of illegal activities on a large scale, this is to the production of sensor, install, use, and signal acquisition process etc. is all brought big difficulty, and those need be worked under higher temperature conditions and use the sensor of well heater, when it is monitored flammable explosive gas, even installed explosion-protection equipments such as explosion-proof net additional, also can bring new potential safety hazard; The contact or the non-contacting sensor that utilize principle such as infrared to monitor change the measuring error of often bringing under the environment such as complicated steel-making, coal production greatly in situations such as smog, dust, temperature.
Utility model content: the drawback of the utility model former monitoring and measurement gas existence in abominable and hazardous environment, provide a kind of analytical instrument or sensor of making away from abominable measurement environment, easy to maintenance, strengthen and measure sensitivity, reduce the active online gas controlling device of potential safety hazard and production cost.The technical scheme that the utility model adopted is: described on-site supervision point 12 places coarse filtration net 1 bottom, coarse filtration net 1 is connected with dedusting filter 3 by transmission pipeline 2, sensor 5 one sides are connected with dedusting filter 3 by mixed gas jar 4, and opposite side is connected with exhaust gas processing device 13 by flow indication vacuum pump 6.
The beneficial effects of the utility model are: easy to maintenance because the using gases pipeline makes analytical instrument or sensor away from abominable measurement environment, strengthened measurement sensitivity, and reduce potential safety hazard and production cost.Utilize intelligent automatic control, to measuring after the air mixed, initiatively the dilution measurement gas concentration has been eliminated the potential safety hazard that gas on-site concentration is prescribed a time limit above blast when the monitoring flammable explosive gas, and has been avoided measuring the secondary pollution that causes again.
Description of drawings: Fig. 1 is a syndeton synoptic diagram of the present utility model
Embodiment: as shown in Figure 1, described on-site supervision point 12 places coarse filtration net 1 bottom, coarse filtration net 1 is connected with dedusting filter 3 by transmission pipeline 2, sensor 5 one sides are connected with dedusting filter 3 by mixed gas jar 4, and opposite side is connected with exhaust gas processing device 13 by flow indication vacuum pump 6.
As shown in Figure 1, described mixed gas jar 4 connects auxiliary air import 9 by flowrate control valve 10.
As shown in Figure 1, the left side of described dedusting filter 3 is provided with first monitoring, 7 and second monitoring 8 and N monitoring 11.
Principle of work of the present utility model is: by the negative pressure of using vacuum pump to produce, initiatively make monitoring gas on-site guard, gas pipeline and dedusting dust arrester after filtration, arrive measurement mechanism.Monitoring on-the-spot pipeline inflow point filtering screen mainly is particle bigger in the filtering rugged surroundings.By the using gases pipeline, make analytical instrument or sensor away from abominable measurement environment, easy to maintenance, gas pipeline should be selected stable performance, can tolerate the material of field condition, internal diameter should be of moderate size, too conference causes the measurement response lag serious, too Xiao Yi causes air-flow not smooth, utilize the channel selection device of solenoid control not only can select to the amount of establishing field position, reduce analytical instrument or number of sensors, but also can realize intelligent automatic control, dust arrester can further be removed the particle in the spot sampling air-flow.Auxiliary air and volume control device use when the monitoring flammable explosive gas, measurement gas is mixed with the auxiliary air of known mass flow again and is measured, by active dilution measurement gas concentration, can eliminate the potential safety hazard that gas on-site concentration is prescribed a time limit above blast when the monitoring flammable explosive gas.This device is by flow control and indication, and in conjunction with mount messages such as gas pipeline length, can obtain the in-site measurement information delay time.And also can adjust the measurement sensitivity of some kind sensor by flow control.And exhaust gas processing device can avoid measuring the secondary pollution that causes.
Claims (3)
1. active online gas controlling device, it is characterized in that on-site supervision point (12) places coarse filtration net (1) bottom, coarse filtration net (1) is connected with dedusting filter (3) by transmission pipeline (2), sensor (5) one sides are connected with dedusting filter (3) by mixed gas jar (4), and opposite side indicates vacuum pump (6) to be connected with exhaust gas processing device (13) by flow.
2. active online gas controlling device according to claim 1 is characterized in that mixed gas jar (4) connects auxiliary air import (9) by flowrate control valve (10).
3. active online gas controlling device according to claim 1 is characterized in that the left side of dedusting filter (3) is provided with first monitoring (7) and second monitoring (8) and N monitoring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200313826U CN201974322U (en) | 2011-01-26 | 2011-01-26 | Active-type online gas-monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200313826U CN201974322U (en) | 2011-01-26 | 2011-01-26 | Active-type online gas-monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201974322U true CN201974322U (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200313826U Expired - Fee Related CN201974322U (en) | 2011-01-26 | 2011-01-26 | Active-type online gas-monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201974322U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716988A (en) * | 2014-12-05 | 2016-06-29 | 中国石油天然气股份有限公司 | Tubular device for rapidly determining coking trend of heated inferior heavy oil and determination method thereof |
| 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 |
| CN107228917A (en) * | 2016-03-23 | 2017-10-03 | 中国石油化工股份有限公司 | Combustable gas concentration monitoring device |
| CN107796678A (en) * | 2017-12-04 | 2018-03-13 | 浙江省安全生产科学研究院 | A kind of gas controlling device for adverse circumstances |
-
2011
- 2011-01-26 CN CN2011200313826U patent/CN201974322U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716988A (en) * | 2014-12-05 | 2016-06-29 | 中国石油天然气股份有限公司 | Tubular device for rapidly determining coking trend of heated inferior heavy oil and determination method thereof |
| CN107228917A (en) * | 2016-03-23 | 2017-10-03 | 中国石油化工股份有限公司 | Combustable gas concentration 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 |
| CN107796678A (en) * | 2017-12-04 | 2018-03-13 | 浙江省安全生产科学研究院 | A kind of gas controlling device for adverse circumstances |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20120126 |