CN203561532U - Portable gas detector - Google Patents
Portable gas detector Download PDFInfo
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- CN203561532U CN203561532U CN201320633405.XU CN201320633405U CN203561532U CN 203561532 U CN203561532 U CN 203561532U CN 201320633405 U CN201320633405 U CN 201320633405U CN 203561532 U CN203561532 U CN 203561532U
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- sampling gun
- gas
- unit
- cold air
- portable gas
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Abstract
The utility model relates to a portable gas detector which comprises a sampling gun, a filtering device, a detection device and a collection display unit, wherein the sampling gun is connected with the filtering device; the filtering device is fixedly connected with the detection device; the detection device is fixedly connected with the collection display unit; the sampling gun comprises a sampling port, a gas outlet, an inner layer gas channel and an outer layer cold air channel; the sampling port is formed in one end of the inner layer gas channel; the gas outlet is formed in the other end of the inner layer gas channel; the outer layer cold air channel wraps the inner layer gas channel; and a cold air inlet is formed in one side of the outer layer cold air channel, and a cold air outlet is formed in the other side of the outer layer cold air channel. The portable gas detector provided by the utility model is convenient to carry and can accurately detect the concentration of high-temperature gas.
Description
Technical field
The utility model relates to a kind of pick-up unit, is specifically related to a kind of portable gas detector.
Technical background
Infrared gas analyzer is to utilize the principle that gas molecule absorbs infrared radiation to measure a concentration of middle gas as SO
2, NO, CO, CO
2and CH
4deng, the advantage such as it is high that it has measuring accuracy, good stability.But some gas is difficult to measure in infrared band, as O
2, H
2s, alkanes etc., the limitation that has caused infrared gas analyzer to measure.
Electrochemical sensor is by measuring various gas concentrations to the electric signal that tested gas reacts and generation is directly proportional to gas concentration, detect gaseous species wide compared with infrared detector scope, but accuracy of detection can be distinguished to some extent because of the difference of sensor.It is little that it has volume, convenient advantage of installing.
Current portable gas analyzer is applicable to low temperature (being less than 300 ℃) measurement gas, by sampling gun, reach in test environment, by filtering, dedusting, de-watering apparatus enters into analysis meter, detecting principle is take galvanochemistry as main (portable set requires as far as possible small and exquisite, is easy to carry), but precision relative deviation is larger.
But it is blank that the portable set of high-temperature gas (being greater than 1000 ℃) still belongs to, because temperature is too high, be difficult to measure, in the time of especially for cooling, can also guarantee that it is a difficult point that concentration is not lost.
Utility model content
The utility model object is to provide a kind of ground easy to carry, can accurately detect the portable gas detector of high-temperature gas concentration.
For reaching above-mentioned purpose, provide following technical scheme:
A kind of portable gas detector, comprise sampling gun, filtration unit, pick-up unit and collection display unit, described sampling gun connects described filtration unit, and described filtration unit is fixedly connected with described pick-up unit, and described pick-up unit is fixedly connected with described collection display unit; Described sampling gun comprises sample tap, gas outlet, internal layer gas passage and outer cold air duct; Described sample tap is located at one end of described internal layer gas passage; Described gas outlet is located at the other end of described internal layer gas passage; Described outer cold air duct wraps up described internal layer gas passage; One side of described outer cold air duct is provided with cold wind import, and its opposite side is provided with cold wind outlet.
As a preferred version, it between described sampling gun and described filtration unit, is detachable connection.Design can be easy to carry like this.
As another preferred version, described pick-up unit comprises infrared detector and electrochemical sensor, and described infrared detector and described electrochemical sensor are connected in parallel.By adopting infrared detector and electrochemical analyser, mutually made up and detected separately shortcoming, the infrared influence of moisture that is subject to is more, measurement gas kind is less, and electrochemical measurement is of a great variety, but precision is limited, both combine and can measure several or tens kinds of gases simultaneously, and practicality is stronger.
As another preferred version, also comprise handle, described handle is located at the downside of described sampling gun.Make like this operating personnel be convenient to the operation of sampling, prevent from scalding.
As another preferred version, described gas outlet is provided with sampling gun filtrator.Further scheme is that the rear side of described sampling gun filtrator is provided with sampling valve, and described sampling valve is provided with inflatable mouth.By directly on described sampling gun, filtrator being set, can filter out early some larger granule foreigns, protection equipment.And by described sampling valve and described inflatable mouth are further set, can make in use for some time, by described inflatable mouth, described sampling gun filtrator is blown, to clean described sampling gun filtrator, extend the life-span of described sampling gun filtrator.
As another preferred version, also comprise constant temperature heating device, described constant temperature heating device is located between described sampling gun and described filtration unit.Can guarantee that like this gas biography to be measured does not have the larger temperature difference in defeated process, causes and measures concentration loss.
Compared with prior art, the utility model has the advantage of: described sampling gun adopts double-layer cavity design, cavity by described outer cold air duct to enclose inside---described internal layer gas passage carries out air-cooled circulation, to going deep into the sampling gun of high temperature, carry out heat conduction, heat is cancelled out each other by air-cooled, play elementary cooling effect.Make to analyze the high high-temperature gas to 1000 ℃.Be easy to carry, can be widely used in any industry, from low temperature, high temperature, the measurement of multiple types gas concentration.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model:
Fig. 1 is structural representation of the present utility model.
Embodiment
For making technological means of the present utility model, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
An embodiment of the present utility model is:
A kind of portable gas detector, comprises sampling gun 1, handle 2, constant temperature heating device 3, sampling gun filtrator 4, sampling valve 5, filtration unit, flowmeter 10 and pick-up unit and collection display unit 20.Sampling gun 1, sampling gun filtrator 4, sampling valve 5, filtration unit, flowmeter 10, pick-up unit and collection display unit 20 are connected in series successively.Wherein filtration unit comprises filtrator 6, efficient condenser 7, aspiration pump 8 and permeable membrane 9.Filtrator 6 is connected with sampling valve 5.Efficient condenser 7, aspiration pump 8 and permeable membrane 9 form a closed circuit.After this closed circuit is connected to filtrator 6.
After flowmeter 10 is connected to permeable membrane 9, to stablize the air-flow of gas to be measured, make it with stable flow velocity, enter pick-up unit.After pick-up unit is arranged on flowmeter 10.Pick-up unit comprises infrared detector 11 and electrochemical sensor 12, and infrared detector 11 and electrochemical sensor 12 are connected in parallel.
During use, sampling gun 1 is put in containing in the environment of gas to be measured, gas to be measured enters internal layer gas passage 15 by sample tap 13.Refrigerating gas enters into outer cold air duct 16 by cold wind import 17, and exports 18 eliminatings by cold wind, with this, to gas to be measured, carries out cooling.Then gas to be measured carries out primary filter by sampling gun filtrator 4, removes particle.Constant temperature heating device 3 is incubated this filter process simultaneously.Gas to be measured after filtration, by sampling valve 5, enters filtrator 6, further removes particle.Then enter the closed circuit being formed by efficient condenser 7, aspiration pump 8 and permeable membrane 9.The closed circuit forming by efficient condenser 7, aspiration pump 8 and permeable membrane 9 is removed the moisture in gas to be measured, enters in infrared detector 11, carry out concentration detection so that follow-up.Hydrone is discharged by aspiration pump 8, and gas to be measured is discharged and entered flowmeter 10 by permeable membrane 9.Gas to be measured is able to current stabilization at flowmeter 10 places, with stable flow velocity, enters infrared detector 11 and electrochemical sensor 12 simultaneously, detects simultaneously, and the concentration that obtains detecting is collected and data processing by gathering display unit 20, is finally shown.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand, the utility model is not restricted to the described embodiments, in above-described embodiment and instructions only for principle of the present utility model is described, under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all belong to the utility model scope.The claimed scope of utility model is defined by claims and the equivalent thereof of appendix.
Claims (7)
1. a portable gas detector, comprise sampling gun, filtration unit, pick-up unit and collection display unit, described sampling gun connects described filtration unit, and described filtration unit is fixedly connected with described pick-up unit, and described pick-up unit is fixedly connected with described collection display unit; It is characterized in that: described sampling gun comprises sample tap, gas outlet, internal layer gas passage and outer cold air duct; Described sample tap is located at one end of described internal layer gas passage; Described gas outlet is located at the other end of described internal layer gas passage; Described outer cold air duct wraps up described internal layer gas passage; One side of described outer cold air duct is provided with cold wind import, and its opposite side is provided with cold wind outlet.
2. portable gas detector according to claim 1, is characterized in that: between described sampling gun and described filtration unit, be detachable connection.
3. portable gas detector according to claim 1, is characterized in that: described pick-up unit comprises infrared detector and electrochemical sensor, and described infrared detector and described electrochemical sensor are connected in parallel.
4. according to the portable gas detector described in claim 1 or 2 or 3, it is characterized in that: also comprise handle, described handle is located at the downside of described sampling gun.
5. according to the portable gas detector described in claim 1 or 2 or 3, it is characterized in that: described gas outlet is provided with sampling gun filtrator.
6. portable gas detector according to claim 5, is characterized in that: the rear side of described sampling gun filtrator is provided with sampling valve, and described sampling valve is provided with inflatable mouth.
7. according to the portable gas detector described in claim 1 or 2 or 3, it is characterized in that: also comprise constant temperature heating device, described constant temperature heating device is located between described sampling gun and described filtration unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633405.XU CN203561532U (en) | 2013-10-14 | 2013-10-14 | Portable gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633405.XU CN203561532U (en) | 2013-10-14 | 2013-10-14 | Portable gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561532U true CN203561532U (en) | 2014-04-23 |
Family
ID=50511247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320633405.XU Expired - Fee Related CN203561532U (en) | 2013-10-14 | 2013-10-14 | Portable gas detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561532U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266991A (en) * | 2014-10-22 | 2015-01-07 | 中山欧麦克仪器设备有限公司 | Portable gas detector |
| CN115791675A (en) * | 2023-02-07 | 2023-03-14 | 北京乐氏联创科技有限公司 | High-temperature infrared gas detection device |
| CN116296620A (en) * | 2023-02-09 | 2023-06-23 | 轻准(杭州)科技有限公司 | Gas path acquisition system, device and method of flue gas analyzer |
-
2013
- 2013-10-14 CN CN201320633405.XU patent/CN203561532U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266991A (en) * | 2014-10-22 | 2015-01-07 | 中山欧麦克仪器设备有限公司 | Portable gas detector |
| CN115791675A (en) * | 2023-02-07 | 2023-03-14 | 北京乐氏联创科技有限公司 | High-temperature infrared gas detection device |
| CN116296620A (en) * | 2023-02-09 | 2023-06-23 | 轻准(杭州)科技有限公司 | Gas path acquisition system, device and method of flue gas analyzer |
| CN116296620B (en) * | 2023-02-09 | 2023-11-21 | 轻准(杭州)科技有限公司 | Gas path acquisition system, device and method of flue gas analyzer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20211014 |