CN213301833U - Explosion-proof combustible gas detection device - Google Patents
Explosion-proof combustible gas detection device Download PDFInfo
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- CN213301833U CN213301833U CN202022617415.7U CN202022617415U CN213301833U CN 213301833 U CN213301833 U CN 213301833U CN 202022617415 U CN202022617415 U CN 202022617415U CN 213301833 U CN213301833 U CN 213301833U
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Abstract
The utility model discloses an explosion-proof combustible gas detection device belongs to check out test set technical field. The explosion-proof combustible gas detection device comprises an explosion-proof box body, a first filter, a second filter, a combustible gas detector, a pneumatic actuator, an air inlet and an air outlet, wherein the first filter, the second filter, the combustible gas detector, the pneumatic actuator, the air inlet and the air outlet are arranged in the explosion-proof box body, the output end of the first filter is communicated with the input end of the second filter, the output end of the second filter is communicated with the input end of the combustible gas detector, the output end of the combustible gas detector is communicated with the pneumatic actuator, the air inlet is communicated with the. Because the setting of first filter and second filter for combustible gas can obtain high-purity combustible gas through dual filtration before detecting, detects the precision and improves greatly, lifting means's reliability.
Description
Technical Field
The utility model relates to a check out test set technical field, in particular to explosion-proof combustible gas detection device.
Background
The detection of the use safety of the combustible gas generally needs to detect the concentration of the combustible gas, whether the detection value of the gas concentration exceeds the lower explosion limit or not is judged to be safe, and the concentration of the combustible gas is generally detected by using a combustible gas detection device.
However, in the prior art, because the combustible gas to be detected is mixed with impurities such as water and oil, the concentration numerical result detected by the combustible gas detection device is often deviated from the actual value, so that the detection error is large, the precision is low, and improvement is needed urgently.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an explosion-proof combustible gas detection device, the precision is high.
In order to solve the technical problem, the utility model discloses a technical scheme does: the utility model provides an explosion-proof combustible gas detection device, is in including explosion-proof box and setting first filter, second filter, combustible gas detector, pneumatic actuator, air inlet, gas vent in the explosion-proof box, first filter output with second filter input intercommunication, second filter output with combustible gas detector input intercommunication, combustible gas detector output with pneumatic actuator intercommunication, the air inlet with first filter input intercommunication, the gas vent with pneumatic actuator intercommunication.
Adopt above-mentioned technical scheme, because the setting of first filter and second filter for combustible gas can obtain high-purity combustible gas through double filtration before detecting, and the detection precision improves greatly, lifting means's reliability.
Preferably, the device further comprises two change-over switches, wherein one change-over switch is arranged between the input end of the combustible gas detector and the output end of the second filter, and the other change-over switch is arranged between the output end of the combustible gas detector and the pneumatic actuator.
Preferably, a flowmeter is arranged between the second filter and the combustible gas detector in a communication mode.
Preferably, the flow meter is a glass rotameter.
Preferably, the first filter comprises a water-gas separation filter and a water drainer, the bottom of the water-gas separation filter is communicated with the top of the water drainer, and the second filter is an activated carbon filter.
Preferably, the explosion-proof box body is made of stainless steel.
Drawings
Fig. 1 is a schematic block diagram of the structure of an embodiment of the present invention.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, in a first embodiment, an explosion-proof combustible gas detection device is provided, which includes an explosion-proof box, and a first filter, a second filter, a combustible gas detector, a pneumatic actuator, an air inlet, and an air outlet which are arranged in the explosion-proof box, wherein an output end of the first filter is communicated with an input end of the second filter, an output end of the second filter is communicated with an input end of the combustible gas detector, an output end of the combustible gas detector is communicated with the pneumatic actuator, the air inlet is communicated with an input end of the first filter, and the air outlet is communicated with the pneumatic actuator. Because the setting of first filter and second filter for combustible gas can obtain high-purity combustible gas through dual filtration before detecting, detects the precision and improves greatly, lifting means's reliability.
The working principle is as follows: under the drive of the pneumatic actuator, the airflow is driven to flow from the air inlet to the air outlet through the air pressure difference, and the combustible gas enters the air inlet and sequentially passes through the first filter, the second filter, the flowmeter, the combustible gas detector and the pneumatic actuator, and is subjected to secondary filtration and then combustible gas concentration detection.
Further, in the second embodiment, two change-over switches are further included, and the combustible gas detector has two change-over switches, one of the change-over switches is arranged between the input end of the combustible gas detector and the output end of the second filter, and the other change-over switch is arranged between the output end of the combustible gas detector and the pneumatic actuator. The two combustible gas detectors can be switched through the change-over switch, two groups of data can be measured, and the obtained measuring result is more accurate and reliable.
Further, in the third embodiment, a flow meter is provided in communication between the second filter and the combustible gas detector. The flow meter can detect the flow of the combustible gas to be detected so as to control the flow.
Further, in the fourth embodiment, the flow meter is a glass rotameter. The glass rotameter has the advantages of small pressure loss, reliable performance, simple structure, convenient installation and use and low price.
Further, in the fifth embodiment, the first filter includes a water-gas separation filter and a water drain, the bottom of the water-gas separation filter communicates with the top of the water drain, and the second filter is an activated carbon filter. But first filter filterable steam, dry combustible gas, impurity such as the second filter filterable oil drop for the combustible gas after the filtration is purer.
Further, in the sixth embodiment, the explosion-proof box body is made of stainless steel. The stainless steel structure has high strength, difficult deformation, corrosion resistance and long service life, and certainly, in practical application, the explosion-proof box body can also be made of aluminum alloy, carbon structural steel and the like, but is not limited to the above.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (6)
1. An explosion-proof combustible gas detection device which characterized in that: including explosion-proof box and setting first filter, second filter, combustible gas detector, pneumatic actuator, air inlet, gas vent in the explosion-proof box, first filter output with second filter input intercommunication, second filter output with combustible gas detector input intercommunication, combustible gas detector output with pneumatic actuator intercommunication, the air inlet with first filter input intercommunication, the gas vent with pneumatic actuator intercommunication.
2. The explosion-proof combustible gas detection apparatus of claim 1, wherein: the combustible gas detector is provided with two change-over switches, one change-over switch is arranged between the input end of the combustible gas detector and the output end of the second filter, and the other change-over switch is arranged between the output end of the combustible gas detector and the pneumatic actuator.
3. The explosion-proof combustible gas detection apparatus of claim 1, wherein: and a flowmeter is communicated between the second filter and the combustible gas detector.
4. The explosion-proof combustible gas detection apparatus of claim 3, wherein: the flowmeter is a glass rotameter.
5. The explosion-proof combustible gas detection apparatus of claim 1, wherein: the first filter comprises a water-gas separation filter and a drainer, the bottom of the water-gas separation filter is communicated with the top of the drainer, and the second filter is an activated carbon filter.
6. The explosion-proof combustible gas detection apparatus of claim 1, wherein: the explosion-proof box body is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022617415.7U CN213301833U (en) | 2020-11-13 | 2020-11-13 | Explosion-proof combustible gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022617415.7U CN213301833U (en) | 2020-11-13 | 2020-11-13 | Explosion-proof combustible gas detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213301833U true CN213301833U (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022617415.7U Active CN213301833U (en) | 2020-11-13 | 2020-11-13 | Explosion-proof combustible gas detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213301833U (en) |
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2020
- 2020-11-13 CN CN202022617415.7U patent/CN213301833U/en active Active
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