CN220490783U - Gas detection equipment with gas capturing device - Google Patents
Gas detection equipment with gas capturing device Download PDFInfo
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- CN220490783U CN220490783U CN202321701196.8U CN202321701196U CN220490783U CN 220490783 U CN220490783 U CN 220490783U CN 202321701196 U CN202321701196 U CN 202321701196U CN 220490783 U CN220490783 U CN 220490783U
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- gas
- detector body
- inner diameter
- sampling tube
- flow
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- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000005070 sampling Methods 0.000 claims abstract description 18
- 230000001502 supplementing effect Effects 0.000 claims abstract description 9
- 239000011148 porous material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 2
- 230000001788 irregular Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 41
- 239000000428 dust Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a gas detection device with a gas capturing device, which is structurally characterized in that a gas supplementing cover with the inner diameter of 46.5mm is connected to the gas inlet end of the bottom of a sampling tube at the bottom of a gas detector body. According to the aerodynamic principle, after the sampling tube with the original inner diameter of 6mm of the gas detector body is provided with the gas capturing flow equalizing cover with the inner diameter of 46.5mm, the cross section area of the sampling port is increased, and the original inlet gas flow rate of 1m/s is reduced to 0.1m/s, so that the inlet gas flow rate is reduced, and meanwhile, the irregular gas flow can be changed into regular straight-line uniform flow. The utility model has the advantages that: the structure design is reasonable, can reduce about 90% and detect the filter of equipment and block up, and then reduce the unusual and foreign matter of flow and inhale the detector body trouble that leads to, improved whole gas detection system's accuracy and reliability, also reducible filter change frequency simultaneously reduces use cost.
Description
Technical Field
The utility model relates to gas detection equipment with a gas capturing device, in particular to gas detection equipment with a gas capturing device, which is used for detecting harmful gas in semiconductor production.
Background
In the industrial production industry, such as semiconductor production, where various toxic and corrosive special gases are required, in order to ensure safe production and to ensure timely discovery when gas leaks, it is necessary to install a gas detection device and an alarm linkage device for monitoring at a factory environmental point.
The gas detection device is a safety device, rather than an analyzer or a concentration meter for analyzing and measuring the quantitative/qualitative property of the gas, the built-in pump of the device can extract ambient point air through the sampling tube, the built-in gas sensor is utilized for measuring the abnormality in the ambient point air, and the concentration of the measured gas is displayed on the LCD screen of the device in 4-20mA or numbers.
In the process of using the prior art gas detection device (as shown in fig. 1), because toxic gas and corrosive gas have higher density than air, the arrangement position of the sampling tube is generally 0.3-0.5m below the release source and away from the ground, the flow rate of the gas inlet position of the sampling tube is high (the gas suction speed is 1 m/s), meanwhile, because the gas is close to the ground, dust or small particles are more, dust or small particles are easily sucked into the detector, and the detection device is easy to be blocked by a filter to cause abnormal flow or fault of the detector body.
Disclosure of Invention
The utility model provides gas detection equipment with a gas capturing device, and aims to overcome the defects in the prior art, reduce the flow rate of air inlet, reduce blockage and further reduce faults.
The technical solution of the utility model is as follows: the gas detection equipment with the gas capturing device structurally comprises a gas detector body with an LCD screen, wherein a sampling tube and an exhaust tube are arranged at the bottom of the gas detector body, a filter is arranged on the sampling tube with the inner diameter of 6mm, and an air inlet end at the bottom of the sampling tube is connected with an air supplementing cover with the inner diameter of 46.5 mm. According to the aerodynamic principle, after the gas capturing flow equalizing cover with the inner diameter of 46.5mm is added at the position of the original sampling pipe with the inner diameter of 6mm of the gas detector body, the cross section area of the sampling port is increased, and the original inlet gas flow rate of 1m/s is reduced to 0.1m/s, so that the inlet gas flow rate is reduced, and meanwhile, the irregular gas flow can be changed into regular straight-line uniform flow.
Preferably, in order to reduce the adhesion and suction of particulate matters and dust, the air inlet end at the bottom of the air supplementing cover is provided with a flow equalizing pore plate, the air supplementing cover and the flow equalizing pore plate are made of Clean-PVC materials, and the roughness Ra0.8 of the inner side surface of the air supplementing cover.
The utility model has the advantages that: the structure design is reasonable, can reduce about 90% and detect the filter of equipment and block up, and then reduce the unusual and foreign matter of flow and inhale the detector body trouble that leads to, improved whole gas detection system's accuracy and reliability, also reducible filter change frequency simultaneously reduces use cost.
Drawings
FIG. 1 is a schematic diagram of a prior art gas detection apparatus (gas detector GD-70D Japanese chemical counter).
FIG. 2 is a schematic diagram of a gas detecting apparatus with a gas capturing device according to the present utility model.
In the figure, 1 is a sampling tube, 2 is a filter, 3 is a gas detector body, 4 is an exhaust pipe, 5 is a gas supplementing cover, and 51 is a flow equalizing pore plate.
Detailed Description
The present utility model will be described in further detail with reference to examples and embodiments.
Examples
The utility model provides a take gas detection equipment who catches gas device, its structure includes the gas detector body 3 of taking the LCD screen, sampling tube 1 and blast pipe 4 are equipped with to gas detector body 3 bottom, be equipped with filter 2 on the sampling tube 1 of internal diameter 6mm, sampling tube 1 bottom inlet end is connected with the air compensating cover 5 of internal diameter 46.5mm, air compensating cover 5 bottom inlet end is equipped with flow equalizing orifice plate 51, air compensating cover 5 and flow equalizing orifice plate 51 are Clean-PVC material, air compensating cover 5 medial surface roughness Ra0.8.
The above components are all of the prior art, and any model and existing design that can achieve their corresponding functions can be used by those skilled in the art.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present utility model.
Claims (4)
1. The gas detection device with the gas capturing device structurally comprises a gas detector body (3) with an LCD screen, wherein a sampling tube (1) and an exhaust pipe (4) are arranged at the bottom of the gas detector body (3), a filter (2) is arranged on the sampling tube (1) with the inner diameter of 6mm, and the gas detection device is characterized in that the gas inlet end at the bottom of the sampling tube (1) is connected with a gas supplementing cover (5) with the inner diameter of 46.5 mm.
2. The gas detection device with the gas capturing device according to claim 1, wherein a flow equalizing pore plate (51) is arranged at the bottom air inlet end of the air supplementing cover (5).
3. The gas detection device with the gas capturing device according to claim 2, wherein the gas supplementing cover (5) and the flow equalizing pore plate (51) are made of Clean-PVC materials.
4. A gas detection apparatus with a gas trap device according to claim 2 or 3, wherein the roughness ra of the inner side surface of the gas-compensating hood (5) is 0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321701196.8U CN220490783U (en) | 2023-06-30 | 2023-06-30 | Gas detection equipment with gas capturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321701196.8U CN220490783U (en) | 2023-06-30 | 2023-06-30 | Gas detection equipment with gas capturing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220490783U true CN220490783U (en) | 2024-02-13 |
Family
ID=89832025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321701196.8U Active CN220490783U (en) | 2023-06-30 | 2023-06-30 | Gas detection equipment with gas capturing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220490783U (en) |
-
2023
- 2023-06-30 CN CN202321701196.8U patent/CN220490783U/en active Active
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