CN115282517B - Portable poison filtering box service life detection device - Google Patents
Portable poison filtering box service life detection device Download PDFInfo
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- CN115282517B CN115282517B CN202210951546.XA CN202210951546A CN115282517B CN 115282517 B CN115282517 B CN 115282517B CN 202210951546 A CN202210951546 A CN 202210951546A CN 115282517 B CN115282517 B CN 115282517B
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- Prior art keywords
- gas
- detection
- box body
- gas detection
- detection module
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- 238000001514 detection method Methods 0.000 title claims abstract description 137
- 238000001914 filtration Methods 0.000 title claims abstract description 33
- 231100000614 poison Toxicity 0.000 title claims abstract description 31
- 239000002574 poison Substances 0.000 title claims abstract description 31
- 239000003053 toxin Substances 0.000 claims abstract description 13
- 231100000765 toxin Toxicity 0.000 claims abstract description 13
- 229910044991 metal oxide Inorganic materials 0.000 claims description 7
- 150000004706 metal oxides Chemical class 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 7
- 239000007784 solid electrolyte Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 83
- 231100000331 toxic Toxicity 0.000 description 4
- 230000002588 toxic effect Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 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
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B27/00—Methods or devices for testing respiratory or breathing apparatus for high altitudes
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The application discloses a portable poison filtering box service life detection device which comprises a box body, a gas detection module, a power supply module and an electric control device, wherein the box body is provided with a gas detection module; the gas detection module comprises a gas guide tube, a gas detection sensor, a suction pump and a tail gas adsorber, wherein the gas inlet end of the gas guide tube is positioned outside the box body, the gas outlet end of the gas guide tube is connected with the gas inlet end of the suction pump in the box body, the gas detection sensor is arranged in the box body, the detection end of the gas detection sensor stretches into the gas guide tube to detect gas passing through the gas guide tube, the gas outlet end of the suction pump is connected with the tail gas adsorber, the power supply module provides electric energy for the gas detection module, and the electric control device is used for receiving control instructions of external users and controlling the operation of the gas detection module and outputting data detected by the gas detection module. The detection device can help respirator use units to evaluate the service life of the toxin filtering box regularly according to shifts or days, and remind users to replace the toxin filtering box with the expired service life in time.
Description
Technical Field
The application relates to the technical field of toxin filtering boxes, in particular to a portable toxin filtering box service life detection device.
Background
In the prior art, the working environment of production and manufacture can expose operators to polluted air, and in the corresponding working environment, the operators can use respirators to reduce the exposure risk. While respirators with a poison filter box are one of the most common respirators as protective gear for toxic and harmful gases or vapors.
But often the user cannot determine the current performance and status of the respirator, and particularly whether the cartridge has failed. If the failed poison filter box is not replaced in time, operators may cause harm to the body due to long-time inhalation of toxic and harmful gases/vapors exceeding the limit value. Therefore, the timely replacement of the respirator toxin filtering box is very important for the safety and health of workers.
For respirator usage units, it is critical to make a reasonable replacement plan for the respirator toxin filter cartridge, typically by first sampling and analyzing the potential toxic and harmful gas or vapor contaminants in the workplace to determine the concentration level in the air, and then specifying the replacement cycle for the toxin filter cartridge based on the respirator manufacturer's toxin filter cartridge life estimation software. However, the actual pollutant level of the workplace is not stable and unchanged, and the performance of the toxin filtering box is also influenced by environmental conditions such as temperature and humidity, so that the estimated replacement period of the toxin filtering box is difficult to truly and effectively reflect the actual service life of the toxin filtering box, and the toxin filtering box is difficult to replace in time when the service life reaches.
In contrast, some respirator manufacturers have introduced life failure indicators (End of Service Life Indicator, ESLI for short), but both passive and active ESLI have resulted in a significant increase in cost of the respirator, which in turn has increased the cost of use to the respirator usage unit.
Disclosure of Invention
In view of this, the present application provides a portable poison filtering box service life detection device, so as to detect the used poison filtering box quickly and efficiently, and comprehensively judge the remaining service life of the poison filtering box by combining the replacement period of the poison filtering box specified by the poison filtering box service life estimation software, so as to accurately remind the replacement period of the poison filtering box.
The application provides a portable poison filtering box service life detection device which comprises a box body, a gas detection module, a power supply module and an electric control device, wherein the box body is provided with a gas detection module;
the gas detection module comprises a gas guide pipe, a gas detection sensor, a suction pump and a tail gas adsorber, wherein the gas inlet end of the gas guide pipe is positioned above the box body, the gas outlet end of the gas guide pipe penetrates through the box body and is connected with the gas inlet end of the suction pump in the box body, the gas detection sensor is arranged in the box body, the detection end of the gas detection sensor stretches into the gas guide pipe to detect gas passing through the gas guide pipe, the gas outlet end of the suction pump is connected with the tail gas adsorber, the power supply module is arranged in the box body and is used for storing and outputting electric energy so as to provide electric energy for the gas detection module, and the electric control device is used for receiving control instructions of external users and controlling the operation of the gas detection module and outputting data detected by the gas detection module.
Optionally, the gas detection sensor includes one or both of a solid electrolyte electrochemical sensor and a MEMS metal oxide semiconductor sensor.
Optionally, when the gas detection sensor comprises a solid electrolyte electrochemical sensor and an MEMS metal oxide semiconductor sensor, the gas inlet end of the air pump is respectively communicated with the solid electrolyte electrochemical sensor and the MEMS metal oxide semiconductor sensor through a gas transmission pipeline with a three-way electromagnetic valve.
Optionally, an air inlet one-way valve is arranged in the air inlet end of the air duct.
Optionally, the air pump is a diaphragm micro vacuum pump.
Optionally, the air duct includes the air duct body and installs in the terminal detection cavity of air duct body, the detection end of gas detection sensor inserts and locates in the detection cavity, the detection cavity has air inlet and gas outlet, the air inlet of detection cavity is connected with the end of giving vent to anger of air duct body, the gas outlet of detection cavity communicates through exhaust line with the inlet end of aspiration pump.
Optionally, the electric control device includes treater, display screen, detection status light and control button, the treater is used for controlling display screen, gas detection module and detection status light, the display screen is used for showing gas detection module's detection data, detection status light is used for showing gas detection module's detection state, control button includes switch and selection button, switch is used for controlling portable strain poison box life detection device's start-stop, selection button is used for selecting gas detection module's the type of starting.
Optionally, the electronic control device further comprises an acousto-optic device, wherein the acousto-optic device is electrically connected with the processor, and the acousto-optic device is used for sending out warning acousto-optic when the value detected by the gas detection sensor exceeds a preset concentration threshold value.
The application has the beneficial effects that:
the portable poison filtering box service life detection device has the advantages of simple structure, low cost, small volume and portability, and can help respirator use units to evaluate the service life of the poison filtering box regularly according to shifts or days and remind users to replace the poison filtering box with the expired service life in time.
Drawings
FIG. 1 is a schematic perspective view of a portable poison filtering box life detection device according to an embodiment of the present application;
FIG. 2 is a side view of FIG. 1;
fig. 3 is a cross-sectional view A-A of fig. 2.
In the reference numerals:
the box body 10, the upper groove 101, the USB Type C interface 102, the air duct body 211, the detection cavity 212, the cap 213, the gas detection sensor 22, the air pump 23, the tail gas adsorber 24, the air inlet one-way valve 25, the three-way electromagnetic valve 26, the display screen 31, the detection status lamp 32, the control button 33 and the lithium battery module 34.
Detailed Description
The technical scheme of the application is described in detail below with reference to the accompanying drawings and the specific embodiments. Wherein like parts are designated by like reference numerals.
Referring to fig. 1 to 3, the application discloses a portable poison filtering box service life detection device, which comprises a box body 10, a gas detection module, a power supply module and an electric control device; the electric control device is used for receiving control instructions of external users, controlling the operation of the gas detection module and outputting data detected by the gas detection module.
As shown in fig. 2 and 3, the gas detection module includes a gas guide tube, a gas detection sensor 22, a suction pump 23 and a tail gas adsorber 24, the gas inlet end of the gas guide tube 211 is located above the box body 10, the gas outlet end of the gas guide tube 211 passes through the box body 10 and is connected with the gas inlet end of the suction pump 23 in the box body 10, the gas detection sensor 22 is installed in the box body 10, and the detection end of the gas detection sensor 22 extends into the gas guide tube 211 to detect the gas passing through the gas guide tube 211, and the gas outlet end of the suction pump 23 is connected with the tail gas adsorber 24.
In this embodiment, the box body 10 is of a hollow cuboid structure, the gas detection sensor 22 is installed in the middle of the inner bottom surface of the box body 10, the air pump 23 is installed on one side of the inner bottom surface of the box body 10, the upper box surface of the box body 10 is provided with a pipeline perforation, the air duct penetrates into the box body 10 from the pipeline perforation, wherein one end of the air duct, which is positioned outside the box body 10, is provided with a clamping interface matched with the gas outlet of the poison filtering box, and the clamping interface is determined according to the type of the gas outlet of the poison filtering box, so that for poison filtering boxes of different types, corresponding clamping interfaces are different, the caps 213 are fastened outside the clamping interfaces, when the detection device is used, the caps 213 are removed, and when the detection device is not used, the caps 213 are covered on the clamping interface.
In this embodiment, the bottom surface of the box body 10 has an upper groove 101, the exhaust gas adsorber 24 is disposed in the upper groove 101, a through hole for the exhaust pipe of the air pump 23 to pass through is provided on the inner top surface of the upper groove 101, the exhaust pipe of the air pump 23 passes through the through hole and then is connected with the exhaust gas adsorber 24, and the exhaust gas adsorber 24 is preferably an adsorber with the same filling material as the poison filtering box, i.e. the gas pumped by the air pump 23 is absorbed by the exhaust gas adsorber 24 again, so as to avoid the toxic gas from leaking.
In this embodiment, the power supply module is installed in the box body 10, and the power supply module is used for storing and outputting electric energy to provide electric energy for the gas detection module, specifically, the power supply module is the lithium battery module 34, and the side wall of the box body 10 is provided with the USB Type C interface 102 for charging the lithium battery module 34.
As shown in fig. 3, the gas detection sensor 22 includes one or both of a solid electrolyte electrochemical sensor and a MEMS metal oxide semiconductor sensor, and can detect the concentration of VOC, cl2, H2S, SO2, HCl, NH3, and NO gas.
In the present embodiment, the gas detection sensor 22 includes a solid electrolyte electrochemical sensor and a MEMS metal oxide semiconductor sensor, the case 10 has two sets of gas guide pipes, each set of pipes corresponds to the gas detection sensor 22, the gas inlet end of the suction pump 23 is independently connected with the two gas detection sensors 22 through a branch pipe, and a three-way electromagnetic valve 26 is provided on the branch pipe, that is, the same suction pump 23 can supply and discharge gas to the two sets of gas detection sensors 22.
In this embodiment, an air inlet check valve 25 is disposed in the air inlet end of the air duct, the air inlet check valve 25 is a spring type check valve, when the air pump 23 pumps air, a spring in the spring type check valve is pressed, the air inlet check valve 25 is opened, toxic air in the poison filtering box enters the air detection sensor 22 through the check valve, after the air pump 23 is closed, the spring in the spring type check valve is reset, the air inlet check valve 25 is automatically closed, and when the air inlet check valve 25 is set to prevent the air detection sensor 22 from stopping working, air and impurities outside the box body 10 enter the air detection sensor 22.
In this embodiment, the air pump 23 is a micro diaphragm vacuum pump, the maximum air pumping rate of the air pump 23 is 100ML/min, the air pump can be locked at any air pumping rate of 15-60ML/min during detection, the micro diaphragm vacuum pump does not pollute working medium during operation, and the micro diaphragm vacuum pump has the advantages of small volume, low noise and no maintenance.
As shown in fig. 3, the air duct includes an air duct body 211 and a detection cavity 212 mounted at the end of the air duct body 211, the detection end of the gas detection sensor 22 is inserted into the detection cavity 212, the detection cavity 212 has an air inlet and an air outlet, the air inlet of the detection cavity 212 is connected with the air outlet end of the air duct body 211, and the air outlet of the detection cavity 212 is communicated with the air inlet end of the air pump 23 through an exhaust pipeline.
In this embodiment, the air duct 211 and the exhaust pipe are both hard pipes, the detection cavity 212 has a cylindrical structure, and the gas detection sensor 22 can detect in a relatively wide space by setting the detection cavity 212, which is helpful for improving the detection accuracy.
In this embodiment, the electronic control device includes a processor, a display screen 31, a detection status light 32 and a control button 33, where the processor is used to control the display screen 31, the gas detection module and the detection status light 32, the display screen 31 is used to display the detection data of the gas detection module, the detection status light 32 is used to display the detection status of the gas detection module, the control button 33 includes a power switch and a selection button, the power switch is used to control the start and stop of the detection device, and the selection button is used to select the start type of the gas detection module.
The electronic control device further comprises an acousto-optic device, wherein the acousto-optic device is electrically connected with the processor and is used for sending out warning acousto-optic when the value detected by the gas detection sensor 22 exceeds a preset concentration threshold value.
The application process of the application is as follows: firstly, a power switch is touched to enable the portable poison filtering box service life detection device to be in a standby state, then a selection button is touched to select a corresponding gas detection sensor 22 to operate, an air pump 23 continuously operates to pump air in the poison filtering box into a detection cavity 212 for detection, a detection result is displayed on a display screen 31, and when the detection result exceeds a preset value, an acousto-optic device emits light to warn acousto-optic so as to remind that the poison filtering box has the service life and needs to be replaced.
The technical scheme of the application is described in detail in the above with reference to the specific embodiments, and the specific embodiments are used for helping to understand the idea of the application. Those skilled in the art will appreciate that many modifications and variations are possible in light of the above teaching.
Claims (5)
1. The utility model provides a portable strain poison box life detection device which characterized in that: comprises a box body (10), a gas detection module, a power supply module and an electric control device;
the gas detection module comprises a gas guide pipe, a gas detection sensor (22), a suction pump (23) and a tail gas adsorber (24), wherein the gas inlet end of the gas guide pipe is positioned above the box body (10), the gas outlet end of the gas guide pipe penetrates through the box body (10) and is connected with the gas inlet end of the suction pump (23) in the box body (10), the gas detection sensor (22) is arranged in the box body (10), and the detection end of the gas detection sensor (22) extends into the gas guide pipe to detect gas passing through the gas guide pipe, and the gas outlet end of the suction pump (23) is connected with the tail gas adsorber (24);
the gas guide tube comprises a gas guide tube body (211) and a detection cavity (212) arranged at the tail end of the gas guide tube body (211), a detection end of the gas detection sensor (22) is inserted into the detection cavity (212), the detection cavity (212) is provided with a gas inlet and a gas outlet, the gas inlet of the detection cavity (212) is connected with the gas outlet end of the gas guide tube body (211), and the gas outlet of the detection cavity (212) is communicated with the gas inlet end of the gas suction pump (23) through a gas transmission pipeline;
the box body (10) is provided with two sets of air guide pipes, each set of pipeline corresponds to one gas detection sensor (22), the air inlet end of the air pump (23) is independently connected with the two gas detection sensors (22) through a branch pipeline, and a three-way electromagnetic valve (26) is arranged on the branch pipeline;
the gas detection sensor (22) comprises a solid electrolyte electrochemical sensor and an MEMS metal oxide semiconductor sensor, and the air inlet end of the air pump (23) is respectively communicated with the solid electrolyte electrochemical sensor and the MEMS metal oxide semiconductor sensor through an air conveying pipeline with a three-way electromagnetic valve (26);
the power supply module is arranged in the box body (10) and is used for storing and outputting electric energy so as to provide electric energy for the gas detection module;
the electric control device is used for receiving control instructions of external users, controlling the operation of the gas detection module and outputting data detected by the gas detection module.
2. The portable poison filter cartridge life detection device of claim 1, wherein: an air inlet one-way valve (25) is arranged in the air inlet end of the air duct.
3. The portable poison filter cartridge life detection device of claim 1, wherein: the air extracting pump (23) is a diaphragm micro vacuum pump.
4. The portable poison filter cartridge life detection device of claim 1, wherein: the electric control device comprises a processor, a display screen (31), a detection status lamp (32) and a control button (33), wherein the processor is used for controlling the display screen (31), the gas detection module and the detection status lamp (32), the display screen (31) is used for displaying detection data of the gas detection module, the detection status lamp (32) is used for displaying detection status of the gas detection module, the control button (33) comprises a power switch and a selection button, the power switch is used for controlling the starting and stopping of the portable toxin filtering box service life detection device, and the selection button is used for selecting the starting type of the gas detection module.
5. The portable poison filter cartridge life detection device of claim 4, wherein: the electric control device further comprises an acousto-optic device which is electrically connected with the processor, and the acousto-optic device is used for emitting warning acousto-optic when the value detected by the gas detection sensor (22) exceeds a preset concentration threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210951546.XA CN115282517B (en) | 2022-08-09 | 2022-08-09 | Portable poison filtering box service life detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210951546.XA CN115282517B (en) | 2022-08-09 | 2022-08-09 | Portable poison filtering box service life detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115282517A CN115282517A (en) | 2022-11-04 |
| CN115282517B true CN115282517B (en) | 2023-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210951546.XA Active CN115282517B (en) | 2022-08-09 | 2022-08-09 | Portable poison filtering box service life detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN115282517B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3762769B2 (en) * | 2003-10-31 | 2006-04-05 | 理研計器株式会社 | Portable gas detector |
| US9011584B2 (en) * | 2011-08-25 | 2015-04-21 | Honeywell International Inc. | End of service life indicator for respirator |
| CN203750060U (en) * | 2014-01-10 | 2014-08-06 | 杭州可普信实业有限公司 | Testing device of fire protection filtering type self-saving breathing apparatus |
| EP3365077B1 (en) * | 2015-10-22 | 2024-06-26 | Honeywell International Inc. | Smart respiratory face mask module |
| CN213843023U (en) * | 2020-07-29 | 2021-07-30 | 湖南砻固工程技术服务有限公司 | Portable gas detector with dust filtering function |
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2022
- 2022-08-09 CN CN202210951546.XA patent/CN115282517B/en active Active
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| Publication number | Publication date |
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| CN115282517A (en) | 2022-11-04 |
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