CN220626115U - Sensitivity detection tool for mine smoke sensor - Google Patents
Sensitivity detection tool for mine smoke sensor Download PDFInfo
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- CN220626115U CN220626115U CN202322208138.8U CN202322208138U CN220626115U CN 220626115 U CN220626115 U CN 220626115U CN 202322208138 U CN202322208138 U CN 202322208138U CN 220626115 U CN220626115 U CN 220626115U
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- box
- gas washing
- pipe
- gas
- detection tool
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- 239000000779 smoke Substances 0.000 title claims abstract description 67
- 230000035945 sensitivity Effects 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 238000005406 washing Methods 0.000 claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 34
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 47
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 15
- 239000003546 flue gas Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 9
- 230000002411 adverse Effects 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 4
- 239000002912 waste gas Substances 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 6
- 238000010926 purge Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Abstract
The utility model discloses a mine smoke sensor sensitivity detection tool which comprises a smoke production room, a flow valve, an air extractor, a test box, a filter box, a gas washing box and a gas washing pipe. The smoke production chamber, the flow valve, the air extractor, the test box and the filter box are sequentially communicated, and the top wall of the smoke production chamber is provided with an air inlet. The outlet of the filter box is communicated with the gas washing box through the gas washing pipe, one end of the gas washing pipe, which is positioned in the gas washing box, is a bent pipe, and a plurality of gas outlet holes are distributed on the side wall of the bent pipe. An exhaust pipe is arranged on the top wall of the gas washing box so as to discharge the purified waste gas. The detection tool is characterized in that the test box is communicated with the filter box firstly, and then the filter box is communicated with the gas washing box through the gas washing pipe. After the test is finished, the flue gas stored in the test box can be sent into the filter box by the air extractor to filter smoke dust, and then the flue gas further enters the bent pipe through the gas washing pipe to be purified, so that adverse effects on the environment are reduced.
Description
Technical Field
The utility model relates to the technical field of smoke sensors, in particular to a sensitivity detection tool for a mine smoke sensor.
Background
The smoke sensor is an important device for realizing fire prevention by monitoring the concentration of smoke, has strong sealing performance in mine environment, can not early warn in time once a fire occurs, and is easy to cause serious consequences. When the smoke quantity generated by fire combustion enters the smoke sensor, the dimming rate is continuously increased, and when the smoke quantity reaches a certain value, the sensor can act to give an alarm, so that people in a mine can be reminded in time. The sensitivity of a smoke sensor is a very important performance indicator, and the threshold value refers to that when the sensor detects that the smoke concentration reaches a certain threshold value, a smoke alarm signal is sent to a control system. The lower the threshold the higher the sensitivity of the sensor to detect smoke, the earlier smoke can be detected and an alarm can be raised. To ensure acceptable sensitivity of the factory-delivered smoke sensor, manufacturers need to test the product being produced or new products being developed. At present, the test fixture mainly detects smoke generated by simulating fire, and finally, the smoke is emptied. However, various harmful substances generated by combustion often exist in the smoke, so that the smoke is directly exhausted to easily pollute the air, and the odor of the surrounding air is abnormal.
Disclosure of Invention
Aiming at the problems, the utility model provides a mine smoke sensor sensitivity detection tool which can be used for purifying the tested smoke and avoiding adverse effects on the environment. In order to achieve the above purpose, the technical scheme of the utility model is as follows:
mine smoke sensor sensitivity detects frock includes: the device comprises a smoke production chamber, a flow valve, an air extractor, a test box, a filter box, a gas washing box and a gas washing pipe. Wherein: the smoke production chamber, the flow valve, the air extractor, the test box and the filter box are sequentially communicated, and the top wall of the smoke production chamber is provided with an air inlet. The outlet of the filter box is communicated with the gas washing box through the gas washing pipe, one end of the gas washing pipe, which is positioned in the gas washing box, is a bent pipe, and a plurality of gas outlet holes are distributed on the side wall of the bent pipe. An exhaust pipe is arranged on the top wall of the gas washing box so as to discharge the purified waste gas.
Further, a sensor mounting seat is fixed on the upper inner wall of the top cover of the test box so as to mount the smoke sensor to be tested.
Further, the inner cavity of the gas washing box is internally provided with washing liquid, and the bending pipe is positioned below the liquid level of the washing liquid. Alternatively, the washing liquid includes any one of water, sodium bicarbonate solution, and the like.
Further, the bottom of the outer side wall of the gas washing tank is connected with a liquid outlet, so that waste liquid accumulated in the gas washing tank can be discharged more thoroughly.
Further, the bottom surface of the inner cavity of the gas washing box is an inclined surface, and the liquid outlet is positioned at the low side of the inclined surface.
Further, a liquid filling opening is formed in the top wall of the gas washing tank so as to supplement new washing liquid.
Further, a filter screen plate is arranged in the inner cavity of the filter box, the filter screen plate is arranged in the inner cavity of the filter box, and the air inlet of the filter box and the air washing pipe are respectively positioned at two sides of the filter screen plate so as to further filter the treated waste gas.
Further, the curved pipe is a spiral pipe or a serpentine pipe, thereby increasing the treatment effect of the exhaust gas.
Compared with the prior art, the utility model has the following beneficial effects: according to the mine smoke sensor sensitivity detection tool disclosed by the utility model, the test box is communicated with the filter box, and then the filter box is communicated with the gas washing box through the gas washing pipe. The flue gas in the power test box of the air extractor enters the filter box to filter smoke dust, then further passes through the gas washing pipe to enter the bending pipe, and the flue gas flows through the bending pipe at the moment and is discharged into the washing liquid from the gas outlet holes on the pipe wall of the bending pipe, so that harmful components in the flue gas are absorbed and purified, and the porous bending pipe can enable the flue gas to be more fully dispersed in the washing liquid, meanwhile, the time of the flue gas in the washing liquid is prolonged, and meanwhile, the flue gas entering the washing liquid can be subjected to dust removal treatment again, so that the purifying treatment effect is improved, and the adverse effects on the environment are reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
Fig. 1 is a schematic structural diagram of a mine smoke sensor sensitivity detection tool in the following embodiment.
Fig. 2 is a schematic view showing the internal structure of the filter box in the following embodiment.
FIG. 3 is a schematic diagram showing the internal structure of the test chamber in the following embodiment.
Fig. 4 is a schematic view showing the internal structure of the scrubber box in the following embodiment.
The label marks in the figures represent: 1-smog production room, 2-flow valve, 3-air extractor, 4-test box, 5-filter tank, 6-gas-washing case, 7-gas-washing pipe, 8-air inlet, 9-crooked pipe, 10-blast pipe, 11-sensor mount pad, 12-smog sensor, 13-leakage fluid dram, 14-filling opening, 15-filter screen plate.
Detailed Description
It should be noted that, for convenience of description, the words "upper", "lower", "left" and "right" in the present utility model, if they mean only that the directions are consistent with the upper, lower, left, and right directions of the drawings themselves, and do not limit the structure, only for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element to be referred to needs to have a specific orientation, and is constructed and operated in a specific orientation, and thus the limitation of the present utility model is not to be construed. The utility model further provides a sensitivity detection tool for the mine smoke sensor, and the sensitivity detection tool is further described with reference to the specification, the drawings and the specific embodiments.
Referring to fig. 1 to 4 of the accompanying drawings, an example of a mine smoke sensor sensitivity detection tool includes: a smoke producing chamber 1, a flow valve 2, an air extractor 3, a test box 4, a filter box 5, a gas washing box 6 and a gas washing pipe 7. Wherein: the smoke production chamber 1, the flow valve 2, the air extractor 3, the test box 4 and the filter box 5 are sequentially communicated, and the top wall of the smoke production chamber 1 is provided with an air inlet 8. The smoke production chamber 1 is mainly used for generating smoke after igniting combustible substances, then the smoke is sent into the test box 4 through the air extractor 3, the smoke sensor 12 is installed therein, when the smoke entering the test box 4 reaches a certain concentration, the smoke sensor 12 is triggered, the size of the smoke inlet amount can be monitored through the control of the flow valve 2, and then the sensitivity threshold value of the smoke sensor 12 is detected, and if the threshold value is higher than a set requirement, the quality of the smoke sensor 12 is not up to standard.
The outlet of the filter box 5 is communicated with the gas washing box 6 through the gas washing pipe 7, a filter screen plate 15 is vertically arranged in the inner cavity of the filter box 5, and the gas inlet of the filter box 5 and the gas washing pipe 7 are respectively positioned at the left side and the right side of the filter screen plate 15. One end of the gas washing pipe 7 positioned in the gas washing box 6 is a bent pipe 9, a plurality of gas outlet holes are distributed on the side wall of the bent pipe 9, and the bent pipe 9 is a spiral pipe or a coiled pipe. An exhaust pipe 10 is provided on the top wall of the gas washing tank 6 to exhaust the purified exhaust gas. When in use, the inner cavity of the gas washing tank 5 is stored with washing liquid, and the bending pipe 8 is positioned below the liquid level of the washing liquid. The scrubbing liquid may be selected from water, sodium bicarbonate solution, etc., which aids in the absorption of some water-soluble acid gases (e.g., sulfur oxides, carbon dioxide, etc.), while the flue gas entering the scrubbing liquid may be dedusted again.
In the test process, the flue gas in the test box 4 is driven by the air extractor 3 to enter the filter box 5 to filter smoke dust, then the flue gas further enters the bent pipe 9 through the air washing pipe 7, and the flue gas flows through the bent pipe 9 and is discharged into the washing liquid from the air outlet holes on the pipe wall of the bent pipe at the same time, so that harmful components in the flue gas are absorbed and purified, and the bent pipe 9 in a porous shape can not only enable the flue gas to be more fully dispersed in the washing liquid, but also increase the time of the flue gas in the washing liquid, improve the purification treatment effect and reduce the adverse effect on the environment. Meanwhile, when the purge tank 6 is not required to be cleaned, clean water can be added into the purge tank 6, and then the clean air blown in by the air extractor 3 is discharged from the porous curved pipe 9, so that the liquid flowing can have a good cleaning effect on the inner cavity of the purge tank 6.
Referring to fig. 3 of the drawings, in another embodiment, a sensor mounting seat 11 is further fixed on the upper inner wall of the top cover of the test box 4 of the mine smoke sensor sensitivity detection tool in the above embodiment, so as to mount the smoke sensor 12 to be tested, and better simulate the manner in which the smoke sensor 12 is mounted on the top wall of the mine tunnel to perform the test.
Referring to fig. 1 and fig. 4 of the specification, in another embodiment, a liquid outlet 13 is connected to the bottom of the outer sidewall of the gas washing tank 5 of the mine smoke sensor sensitivity detection tool of the above embodiment, so as to more thoroughly discharge the waste liquid accumulated in the gas washing tank 5. In a more preferred embodiment, the bottom surface of the inner cavity of the gas washing tank 5 is an inclined surface, and the liquid drain 13 is located at the lower side of the inclined surface.
Referring to fig. 1 and fig. 4 of the specification, in another embodiment, a liquid filling port 14 is provided on a top wall of the gas washing tank 6 of the mine smoke sensor sensitivity detection tool of the above embodiment, so as to supplement new washing liquid into the gas washing tank 6, and ensure a purifying effect on smoke.
Finally, it should be noted that any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model. While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover all modifications or variations within the scope of the utility model as defined by the claims of the present utility model.
Claims (9)
1. Mine smoke transducer sensitivity detects frock, its characterized in that includes: the device comprises a smoke production chamber, a flow valve, an air extractor, a test box, a filter box, a gas washing box and a gas washing pipe; wherein: the smoke production chamber, the flow valve, the air extractor, the test box and the filter box are sequentially communicated, and the top wall of the smoke production chamber is provided with an air inlet; the outlet of the filter box is communicated with the gas washing box through the gas washing pipe, one end of the gas washing pipe, which is positioned in the gas washing box, is a bent pipe, and a plurality of gas outlet holes are distributed on the side wall of the bent pipe; an exhaust pipe is arranged on the top wall of the gas washing box.
2. The mine smoke sensor sensitivity detection tool according to claim 1, wherein a sensor mounting seat is fixed on the upper inner wall of the top cover of the test box.
3. The mine smoke sensor sensitivity detection tool according to claim 1, wherein the inner cavity of the gas washing tank is filled with washing liquid, and the bent pipe is located below the liquid level of the washing liquid.
4. A mine smoke sensor sensitivity detection tool according to claim 3, wherein the washing liquid comprises any one of water and sodium bicarbonate solution.
5. The mine smoke sensor sensitivity detection tool according to claim 3, wherein a liquid outlet is connected to the bottom of the outer side wall of the gas washing tank.
6. The mine smoke sensor sensitivity detection tool according to claim 5, wherein the bottom surface of the inner cavity of the gas washing tank is an inclined surface, and the liquid drain is located on the low side of the inclined surface.
7. The mine smoke sensor sensitivity detection tool according to any one of claims 3-6, wherein a liquid filling port is provided on a top wall of the gas washing tank.
8. The mine smoke sensor sensitivity detection tool according to any one of claims 1-6, wherein a filter screen plate is arranged in the inner cavity of the filter box, and the air inlet of the filter box and the air washing pipe are respectively positioned on two sides of the filter screen plate.
9. The mine smoke sensor sensitivity detection tool of any one of claims 1-6, wherein the curved tube is a spiral tube or a serpentine tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322208138.8U CN220626115U (en) | 2023-08-17 | 2023-08-17 | Sensitivity detection tool for mine smoke sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322208138.8U CN220626115U (en) | 2023-08-17 | 2023-08-17 | Sensitivity detection tool for mine smoke sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220626115U true CN220626115U (en) | 2024-03-19 |
Family
ID=90211899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322208138.8U Active CN220626115U (en) | 2023-08-17 | 2023-08-17 | Sensitivity detection tool for mine smoke sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220626115U (en) |
-
2023
- 2023-08-17 CN CN202322208138.8U patent/CN220626115U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 102, Building 27, Phase III, Zhongnan High tech, No. 8 Zidong Avenue, Tianqiao District, Jinan City, Shandong Province, China, 250119 Patentee after: SHANDONG COAL ELECTRIC Co.,Ltd. Country or region after: China Address before: No.20 Xinsha North Road, Huaiyin District, Jinan City, Shandong Province 250000 Patentee before: SHANDONG COAL ELECTRIC Co.,Ltd. Country or region before: China |