CN204028089U - Environment foul gas detector - Google Patents
Environment foul gas detector Download PDFInfo
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- CN204028089U CN204028089U CN201420361545.0U CN201420361545U CN204028089U CN 204028089 U CN204028089 U CN 204028089U CN 201420361545 U CN201420361545 U CN 201420361545U CN 204028089 U CN204028089 U CN 204028089U
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Abstract
The utility model relates to a kind of environment foul gas detector, comprise analyzer, filtrator, air pump, sampling gun and cabinet, described filtrator is made up of grade one filter and secondary filter, described analyzer comprises electrochemical sensor, photoion gas sensor, interface board and display screen, described photoion gas sensor is by light source, spectrometer and gas compartment composition, the upside of the openend of described gas compartment is connected with described electrochemical sensor by pipeline, described electrochemical sensor is connected with described secondary filter by pipeline, the upside of the blind end of described gas compartment is connected with described air pump and sampling gun by pipeline.The utility model is by integrating electrochemical sensor and photoion gas sensor, can detect the indexs such as ammonia, sulfuretted hydrogen, methyl mercaptan, TVOC simultaneously, have advantages of that measuring accuracy is high, reliability is high, the response time is fast, applied widely, can be widely used in the occasions such as environmental protection on-line monitoring, Industry Control, safety monitoring.
Description
Technical field
The utility model relates to gas detecting instrument, specifically relates to a kind of environment foul gas detector.
Background technology
Most detection of poison gas instrument adopt this electrochemical sensor in the world at present.Electrochemical sensor is to be formed by membrane electrode and electrolytic solution embedding.Electrolyte decomposition is become negative and positive charged ion by gas concentration signal, by electrode, signal is spread out of, can detect the indexs such as ammonia, sulfuretted hydrogen, methyl mercaptan, TVOC with electrochemical sensor, electrochemical sensor advantage is: reaction velocity is fast, accurately (can be used for ppm level), good stability, can quantitatively detect, price material benefit, with low cost, easily extensive use promoted, and is therefore often applicable to the detection of poisonous gas.
CN103837658A (open day on 06 04th, 2014) discloses a kind of gas and has detected tester, comprise single-chip microcomputer, power supply, audible-visual annunciator, clock chip, data-carrier store, A/D converter, infrared sensor, electrochemical sensor, solid indication sensor and I/O extended chip, described audible-visual annunciator, clock chip, data-carrier store, power supply, I/O extended chip and A/D converter are all connected single-chip microcomputer; Described A infrared sensor, electrochemical sensor and solid indication sensor are all connected A/D converter; On described I/O extended chip, also connect keyboard and terminal, the present invention is by above-mentioned principle, a kind of instrument is realized simultaneously and is detected multiple gas with various, finds that toxic and harmful ensures the safety of borehole operation, rationally utilizes gas concentration lwevel to improve booth vegetable output.
CN201508342U (on 06 16th, 2010) discloses a kind of poisonous gas detecting instrument, its technical scheme is a kind of poisonous gas detecting instrument, comprise shell, electrochemical sensor, kernel PCB module, LCDs, described in it, kernel PCB circuit comprises temperature difference compensation module, signal amplification module, AD modular converter, core signal processing module, LED light emitting module, audio-frequency module.Described poisonous gas detecting instrument is provided with three electrochemical sensor bases, the electrochemical sensor of corresponding three the dissimilar toxic gases of detection of described three electrochemical sensor bases, described LED light emitting module is made up of four groups of LED light emitting modules that send respectively different colours light, be provided with four groups of LED light emitting module and audio-frequency modules that send respectively different colours light simultaneously, in the time toxic gas being detected, can be according to the concentration of toxic gas, the LED lamp of respective color is bright, the warning of simultaneously sounding.
Although above-mentioned prior art discloses some poisonous gas detecting instruments, can meet certain detection needs, but still there is certain defect in these gas detecting instruments: electrochemical sensor survey TVOC exists the interference of similar gas, data error is larger, poor stability, is easily subject to the impact of moisture in environment for use.
Therefore, improve for the checkout equipment of toxic gas in environment the further demand that still exists, this is also one of study hotspot in this technical field and emphasis, the power that the present invention is accomplished especially and starting point place.
Utility model content
For the electrochemical sensor survey TVOC that overcomes prior art existence exists the interference of similar gas, data error more greatly, to be easily subject to the impact of moisture in environment for use, the technical matters of poor stability, the inventor after having carried out a large amount of further investigations, thereby completed the utility model.
The utility model is achieved through the following technical solutions, a kind of environment foul gas detector, comprise filtrator, analyzer, air pump, sampling gun and cabinet, described filtrator is made up of grade one filter and secondary filter, described analyzer comprises electrochemical sensor, photoion gas sensor, interface board and display screen, described interface board respectively with described electrochemical sensor, photoion gas sensor, display screen connects, described photoion gas sensor is by light source, spectrometer and gas compartment composition, described gas compartment one end opening, other end sealing, the upside of opening one end of described gas compartment is connected with described electrochemical sensor by pipeline, described electrochemical sensor is connected with described secondary filter by pipeline, the upside of sealing one end of described gas compartment is connected with described air pump by pipeline, described air pump is connected with described sampling gun by pipeline, described light source is arranged on the openend of described gas compartment, described spectrometer is connected with the blind end of described gas compartment.
Preferably, between described grade one filter and secondary filter, be provided with ball valve.
Preferably, between described grade one filter and described ball valve, be provided with lateral, on this lateral, be provided with blowback solenoid valve.
Preferably, between described secondary filter and described analyzer, be provided with lateral, on this lateral, be provided with calibration solenoid valve.
Compared with prior art, the beneficial effects of the utility model are as follows: the utility model integrates electrochemical sensor and photoion gas sensor, measures ammonia by electrochemical sensor, sulfuration and methyl mercaptan, photoion gas sensor detects the gases such as TVOC, realizes and detects ammonia simultaneously, sulfuretted hydrogen, methyl mercaptan, the concentration of foul gas in the environment such as TVOC, has avoided electrochemical sensor survey TVOC and other similar gas to have the interference of similar gas, data error is larger, the shortcoming of poor stability, simultaneously, by increasing dry filtrating equipment in internal system, can remove moisture and dust in gas, avoid being subject to the impact of moisture and dust in environment for use, extend the serviceable life of instrument and improved the accuracy that detects data, reduced the maintenance cost of instrument, thereby it being high to make the present invention have measuring accuracy, reliability is high, response time is fast, advantage applied widely, can be widely used in environmental protection on-line monitoring, Industry Control, the occasions such as safety monitoring.
Brief description of the drawings
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present utility model will become:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the inner theory structure schematic diagram of analyzer of the present utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is elaborated.Following examples will contribute to those skilled in the art further to understand the utility model, but not limit in any form the utility model.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, can also make some distortion and improvement.These all belong to protection domain of the present utility model.
Embodiment 1
The present embodiment relates to a kind of environment foul gas detector, as depicted in figs. 1 and 2, comprise the sampling gun 11 of acquisition filter atmosphere or flue gas, the air pump 12 of draw samples, the analyzer 9 of data processing, carry out filtrator and the cabinet 10 of chemical filtering, filtrator is made up of grade one filter 8 and secondary filter 13, analyzer 9 comprises electrochemical sensor 1, photoion gas sensor 2, interface board 3 and display screen 5, interface board 3 respectively with electrochemical sensor 1, photoion gas sensor 2, display screen 5 connects, photoion gas sensor 2 is by light source 7, spectrometer 4 and gas compartment 6 form, gas compartment 6 one end openings, other end sealing, the upside of opening one end of gas compartment 6 is connected with electrochemical sensor 1 by pipeline, electrochemical sensor 1 is connected with secondary filter 13 by pipeline, the upside of sealing one end of gas compartment 6 is connected with air pump 12 by pipeline, air pump 12 is connected with sampling gun 11 by pipeline, light source 7 is arranged on the openend of gas compartment 6, spectrometer 4 is connected with the blind end of gas compartment 6, analyzer can adopt single-chip microcomputer, the for example microcontroller of model MSP430, use through actual, above-mentioned detector is 0-200ppm for the detectable concentration scope of ammonia, repeatable accuracy is < ± 1%, be 0.3-100mg/Nm for the detectable concentration scope of sulfuretted hydrogen
3, repeatable accuracy is < ± 1%, for the detectable concentration scope 0.5-50mg/Nm of methyl mercaptan
3, repeatable accuracy is < ± 1%, be 0.1-100ppm for the detectable concentration scope of volatile organic matter, repeatable accuracy is < ± 1%, therefore, can be used for home air quality analysis monitoring, refuse landfill obnoxious gas detection, chemical industrial park odorant pollutant emission monitoring etc.
Embodiment 2
The difference of the present embodiment and embodiment 1 is, between grade one filter 8 and secondary filter 13, be provided with resistant to elevated temperatures ball valve 16, grade one filter 8 is provided with lateral with ball valve 16, is provided with blowback solenoid valve 15, for controlling compressed-air actuated entering on this lateral; Between secondary filter 13 and described analyzer 9, be provided with lateral, on this lateral, be provided with calibration solenoid valve 14, in order to control entering of gas and zero gas, by this further improvement, can further improve the accuracy that detects data.
Because above-described embodiment adopts galvanochemistry, photoion (PID) sensor or laser spectral analysis method are carried out the analytical instrument of the foul gas in testing environment atmosphere, be one taking detection of gas technology as basic integrated system, by can Extended Capabilities Port, configurable multiple gas sensor, measure ammonia by electrochemical sensor, sulfuration and methyl mercaptan, photoion gas sensor detects the gases such as TVOC, the ultraviolet light that uses ion lamp to produce due to photoion gas sensor irradiates/bombards object gas, object gas will be ionized after having absorbed enough ultraviolet light energy, by detecting the Weak current producing after gas ionization, can detect the concentration of object gas, most composition of air (N
2, O
2and CO
2) the photoion energy energy that all can provide higher than ion lamp, so the composition of air is can not be detected, therefore, photoion gas sensor (PID) is applicable to for the organic volatile in testing environment gas (VOCs) very much, and be not subject to the interference of air, accuracy of detection can reach ppb rank, and then realizes fast, detect ammonia simultaneously, sulfuretted hydrogen, methyl mercaptan, the concentration of foul gas in the environment such as TVOC, has avoided electrochemical sensor survey TVOC and other similar gas to have the interference of similar gas, data error is larger, the shortcoming of poor stability, can largely eliminate the phase mutual interference of various gases, comprehensive practical performance and the usable range of instrument are greatly strengthened, meanwhile, by increasing dry filtrating equipment in internal system, can remove moisture and dust in gas, extend the serviceable life of instrument and improved the accuracy that detects data, the maintenance cost that reduces instrument, therefore, has measuring accuracy high, reliability is high, response time is fast, the feature such as applied widely, can be widely used in environmental protection on-line monitoring, home air quality analysis monitoring, refuse landfill obnoxious gas detects, chemical industrial park odorant pollutant emission monitoring, the occasions such as safety monitoring, such as can be applicable to chemical industry, oil, environmental protection, pharmacy, all conglomeraties such as wine brewing are safety in production, environmental protection and hazard detection escort.
The utility model is as convenient, the sensitiveest detection means that detects organic volatile (VOCs), particularly there is the incomparable advantage of other types sensor for the low-down Leakage Gas of concentration, can be used for the detection of organic volatile (VOCs), these volatile matters comprise:
Aromatics: benzene, dimethylbenzene, naphthalene etc.;
Stable hydrocarbon and unsaturated hydro carbons: octane, ethene, cyclohexane etc.;
Ketone, aldehyde, ethers: acetone, propionic aldehyde, Neo-thyl etc.;
Halogenated hydrocarbon, sulfo-hydro carbons, alcohols, ester class, hydrazine class etc.
In addition, detectable inorganics comprises: arsenic, ammonia.
Above specific embodiment of the utility model is described.It will be appreciated that, the utility model is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (4)
1. an environment foul gas detector, it is characterized in that, comprise filtrator, analyzer, air pump, sampling gun and cabinet, described filtrator is made up of grade one filter and secondary filter, described analyzer comprises electrochemical sensor, photoion gas sensor, interface board and display screen, described interface board respectively with described electrochemical sensor, photoion gas sensor, display screen connects, described photoion gas sensor is by light source, spectrometer and gas compartment composition, described gas compartment one end opening, other end sealing, the upside of opening one end of described gas compartment is connected with described electrochemical sensor by pipeline, described electrochemical sensor is connected with described secondary filter by pipeline, the upside of sealing one end of described gas compartment is connected with described air pump by pipeline, described air pump is connected with described sampling gun by pipeline, described light source is arranged on the openend of described gas compartment, described spectrometer is connected with the blind end of described gas compartment.
2. a kind of environment foul gas detector according to claim 1, is characterized in that, between described grade one filter and secondary filter, is provided with ball valve.
3. a kind of environment foul gas detector according to claim 2, is characterized in that, between described grade one filter and described ball valve, is provided with lateral, is provided with blowback solenoid valve on this lateral.
4. a kind of environment foul gas detector according to claim 1, is characterized in that, between described secondary filter and described analyzer, is provided with lateral, on this lateral, is provided with calibration solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420361545.0U CN204028089U (en) | 2014-07-01 | 2014-07-01 | Environment foul gas detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420361545.0U CN204028089U (en) | 2014-07-01 | 2014-07-01 | Environment foul gas detector |
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| CN204028089U true CN204028089U (en) | 2014-12-17 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699325A (en) * | 2016-01-28 | 2016-06-22 | 贾林 | Internet intelligent vehicle-mounted carbon monoxide detection system |
| CN106596446A (en) * | 2017-01-16 | 2017-04-26 | 郭振铎 | Handheld type flue gas detector based on in-situ hot-wet method |
| CN106768654A (en) * | 2016-12-20 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of multifunctional gas quantitative leak detector |
| CN108132335A (en) * | 2017-12-26 | 2018-06-08 | 深圳维拓环境科技股份有限公司 | A kind of foul gas on-line computing model |
| CN109030737A (en) * | 2018-07-26 | 2018-12-18 | 上海企诺电子科技有限公司 | A kind of sewage foul gas detection system and sewage foul gas detection method |
-
2014
- 2014-07-01 CN CN201420361545.0U patent/CN204028089U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699325A (en) * | 2016-01-28 | 2016-06-22 | 贾林 | Internet intelligent vehicle-mounted carbon monoxide detection system |
| CN106768654A (en) * | 2016-12-20 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of multifunctional gas quantitative leak detector |
| CN106768654B (en) * | 2016-12-20 | 2021-06-11 | 武汉市欧睿科技有限公司 | Multifunctional gas quantitative leak detector |
| CN106596446A (en) * | 2017-01-16 | 2017-04-26 | 郭振铎 | Handheld type flue gas detector based on in-situ hot-wet method |
| CN106596446B (en) * | 2017-01-16 | 2023-05-16 | 郭振铎 | Handheld in-situ hot wet flue gas detector |
| CN108132335A (en) * | 2017-12-26 | 2018-06-08 | 深圳维拓环境科技股份有限公司 | A kind of foul gas on-line computing model |
| CN109030737A (en) * | 2018-07-26 | 2018-12-18 | 上海企诺电子科技有限公司 | A kind of sewage foul gas detection system and sewage foul gas detection method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20160701 |
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| CF01 | Termination of patent right due to non-payment of annual fee |