CN213181489U - Harmful gas detector - Google Patents
Harmful gas detector Download PDFInfo
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- CN213181489U CN213181489U CN202022229293.4U CN202022229293U CN213181489U CN 213181489 U CN213181489 U CN 213181489U CN 202022229293 U CN202022229293 U CN 202022229293U CN 213181489 U CN213181489 U CN 213181489U
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Abstract
The utility model discloses a harmful gas detector, belong to gaseous detection technical field, which comprises a housin, the embedded control module of setting in the casing, gas concentration detection module and the heating module of being connected with embedded control module, gas concentration detection module includes the glass cover and sets up the gas sensor in the glass cover, gas sensor is used for detecting the concentration of harmful gas in the glass cover, heating module is used for heating the harmful gas in the glass cover and sends the temperature data of the harmful gas who detects for embedded control module, when the temperature of harmful gas reaches and predetermines the temperature threshold value, embedded control module control gas sensor work, and send the temperature data and the gas concentration data of the harmful gas who detects for outside portable terminal. The utility model discloses a harmful gas detector simple structure, convenient to carry realizes harmful gas's real-time detection, and detection efficiency is high.
Description
Technical Field
The utility model relates to a gaseous detection technology field, in particular to harmful gas detector.
Background
HD, dichloroethylsulfide (2,2 '-dichlorodiethylsulfide, β, β' -dichlorodiethylsulfide, bis (2-chloroethyl) sulfide), is volatile, is mainly used in organic synthesis, drugs (useful for treating certain hyperproliferative diseases) and manufacturing of military toxic hazardous substances, and is notorious for its widespread use in toxic hazardous substances.
At present, there are many methods for detecting HD, which mainly include: the method comprises the following steps of reacting HD hydrocarbon property or compound formation property with a chemical reagent, and detecting by a colorimetric method, wherein common detection reagents comprise a thymolphthalein (blue reagent) method, a C- (4-nitrobenzyl) pyridine method (DB-3 method), a sodium nitrosoferricyanide method, a thiourea-nickel salt reagent method and the like, and the detection method has the problems that a detected medicine is easy to lose efficacy and has weak anti-interference capability; the two laboratory instrument analysis methods are to detect HD original shapes and hydrolysis products thiodiglycol thereof by using a gas chromatography-mass spectrometer (GC-MS) and to detect residual trace HD and the like in soil by using a gas chromatography flame photometer. Therefore, it is an important topic to develop a new simplified device for fast and sensitive detection of HD.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a harmful gas detector for it is complicated to solve current HD gas check out test set, problem that the price is high.
In order to achieve the purpose, the utility model provides a harmful gas detector, which comprises a shell and an embedded control module arranged in the shell, the gas concentration detection module and the heating module are connected with the embedded control module, the gas concentration detection module comprises a glass cover and a gas sensor arranged in the glass cover, the gas sensor is used for detecting the concentration of harmful gas in the glass cover, the heating module is used for heating the harmful gas in the glass cover and sending the temperature data of the detected harmful gas to the embedded control module, when the temperature of the harmful gas reaches a preset temperature threshold value, the embedded control module controls the gas sensor to work, and transmitting the detected temperature data of the harmful gas and the gas concentration data to an external portable terminal.
Preferably, the gas concentration detection module further comprises a control circuit unit, and the gas sensor is connected with the embedded control module through the control circuit unit.
Preferably, the gas concentration detection module further comprises a gas guide tube, and the gas guide tube is respectively connected with the gas inlet and the glass cover.
Preferably, the heating module includes a heating film, a temperature sensor and a temperature feedback control circuit unit, the heating film is disposed on the outer surface of the glass cover, the temperature sensor is disposed in the glass cover, and the temperature feedback control circuit unit is configured to control the heating film and the temperature sensor to work, and send the detected temperature data of the harmful gas to the embedded control module.
Preferably, the embedded control module comprises a signal conditioning circuit unit, which is respectively connected with the gas concentration detection module and the heating module, and is used for converting the temperature data of the harmful gas and the gas concentration data into electric signals.
Preferably, the glass cover further comprises an air exhaust module connected with the embedded control module, and the air exhaust module is used for exhausting the harmful gas in the glass cover to the absorption liquid outside the air outlet.
Preferably, the air extraction module comprises a micro motor and an air extraction pump, and the embedded control module sends a control signal to the micro motor to drive the air extraction pump to extract harmful gas in the glass cover.
Preferably, the portable terminal further comprises a communication module connected with the embedded control module, the communication module is used for sending the temperature data and the gas concentration data of the harmful gas to the portable terminal, and the communication module is bluetooth and/or USB.
Preferably, the embedded control module further comprises an indicator light module connected with the embedded control module, wherein the indicator light module comprises one or more of a working state indicator light, a heating indicator light, an electric quantity indicator light and a power indicator light.
Preferably, the gas concentration detection device further comprises an energy storage battery and a power management module, wherein the energy storage battery supplies power to the embedded control module, the gas concentration detection module, the heating module, the air extraction module, the communication module and the indicator light module through the power management module.
The utility model has the advantages of as follows:
the utility model discloses a harmful gas detector includes the casing, set up embedded control module in the casing, gas concentration detection module and heating module, earlier with harmful gas leading-in glass cover during the detection, heating module heats harmful gas in to the glass cover, embedded control module control gas sensor work after the temperature that detects harmful gas when heating module reaches preset temperature threshold value to the temperature data and the gas concentration data transmission of the harmful gas that will detect give outside portable terminal. The utility model discloses a harmful gas detector simple structure, convenient to carry realizes simulating the concentration of poisonous and harmful substance or actual poisonous and harmful substance (HD etc.), the real-time detection of sensitivity, and detection efficiency is high, can be used to realize equipping the quantitative evaluation of disinfection effect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
FIG. 1 is a block diagram illustrating the configuration of a hazardous gas detector in accordance with an exemplary embodiment;
fig. 2 is a block diagram showing a configuration of a harmful gas detector according to another exemplary embodiment;
FIG. 3 is a schematic diagram illustrating the power supply to the hazardous gas detector in accordance with an exemplary embodiment;
FIG. 4 is a schematic view of a housing configuration of a hazardous gas detector shown in accordance with an exemplary embodiment;
FIG. 5 is a schematic view of the internal structure of a hazardous gas detector shown in accordance with an exemplary embodiment;
FIG. 6 is a schematic circuit diagram illustrating an embedded control module of the hazardous gas detector in accordance with an exemplary embodiment;
FIG. 7 is a schematic diagram of a Buck voltage reduction control circuit of the hazardous gas detector shown in accordance with an exemplary embodiment;
fig. 8 is a schematic circuit diagram illustrating an AD collection temperature sensor of the harmful gas detector according to an exemplary embodiment.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below with reference to specific embodiments, but those skilled in the art should understand that the embodiments described below are only used for illustrating the present invention and should not be construed as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
The following will describe preferred embodiments of the present invention in detail with reference to examples. It should be understood that the following examples are given for illustrative purposes only and are not intended to limit the scope of the present invention. Various modifications and substitutions may be made by those skilled in the art without departing from the spirit and scope of the invention, and all such modifications and substitutions are intended to be included within the scope of the claims.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
The invention will be further described with reference to the following drawings and examples:
referring to fig. 1, the embodiment of the present invention provides a harmful gas detector 100, which includes a housing 1, and further includes an embedded control module 2 disposed in the housing 1, the gas concentration detection module 3 and the heating module 4 are connected with the embedded control module 2, the gas concentration detection module 3 comprises a glass cover 31 and a gas sensor 32 arranged in the glass cover 31, the gas sensor 32 is used for detecting the concentration of harmful gas in the glass cover 31, the heating module 4 is used for heating the harmful gas in the glass cover 31 and sending the detected temperature data of the harmful gas to the embedded control module 2, when the temperature of the harmful gas reaches a preset temperature threshold value, the embedded control module 2 controls the gas sensitive sensor 32 to work, and transmits the detected temperature data of the harmful gas and the gas concentration data to the external portable terminal 200.
It should be noted that, in this embodiment, the heating module 4 may adopt a resistance wire or a heating film, as long as it can heat the harmful gas in the glass cover, and is not specifically limited herein.
In this embodiment, the preset temperature threshold is determined according to the detection requirement, and may be a normal indoor temperature, for example: 15-20 ℃.
In this embodiment, the gas sensor 32 may be a sintered indirectly heated gas sensor, specifically, 0.2 wt% Pt/CdSnO3、0.5wt％Pd/CdSnO3Or 0.2 wt% Au/CdSnO3The sensor can be used for detecting HD and chemical gases such as thiodiglycol and hydrogen chloride possibly mixed in the synthesis preparation and use states of the HD, and can detect the concentration, the sensitivity and the like of harmful gases.
The glass cover 31 in this embodiment may be circular, square, semicircular, etc., and is not specifically limited herein, and in addition, the glass cover in this embodiment is made of high quality/fused quality quartz glass, and is mainly used for laboratory equipment and refining equipment for special high purity products, and this glass has a high hardness reaching the mohs' seven grade, has high temperature resistance, a low expansion coefficient, thermal shock resistance, good chemical stability and electrical insulation performance, and has good acid resistance to general acids. The thickness of the glass cover in this embodiment is related to the processing technology, and is not limited herein.
The utility model discloses harmful gas detector includes the casing, set up embedded control module in the casing, gas concentration detection module and heating module, in earlier leading-in glass cover of harmful gas during the detection, heating module heats harmful gas in to the glass cover, embedded control module control gas sensor work after the temperature that heating module detected harmful gas reaches preset temperature threshold value to send the temperature data and the gas concentration data of the harmful gas that detect for outside portable terminal. The utility model discloses harmful gas detector simple structure, convenient to carry realizes simulating the concentration of poisonous and harmful substance or actual poisonous and harmful substance (HD etc.), the real-time detection of sensitivity, and detection efficiency is high, can be used to realize equipping the quantitative evaluation of disinfection effect.
According to the above scheme, further, as shown in fig. 2, the gas concentration detection module 3 of the embodiment of the present invention further includes a control circuit unit 33, and the gas sensor 31 is connected with the embedded control module 2 through the control circuit unit 33.
According to the above scheme, further, as shown in fig. 2, the gas concentration detection module 3 according to the embodiment of the present invention further includes an air duct 34, and the air duct 34 is connected to the air inlet 11 and the glass cover 31 respectively. In this embodiment, an external toxic gas source 400 is connected to the glass cover 31 through the gas inlet 11, so that harmful gas is introduced into the glass cover for detection.
Because HD is a highly toxic erosive toxic and harmful substance, and is also a typical persistent toxic and harmful substance. The pure HD is colorless oily liquid, the industrial product is light yellow or brown, has garlic flavor, the vapor of the pure HD can cause eye injury when the vapor is 1mg/m3, the pure HD can be in various battlefield states, can be vapor, aerosol or liquid drops, and is very easy to be poisoned by invading the body through skin contact or respiratory tract inhalation. In this embodiment, the toxic gas source 400 is an oily toxic and harmful substance, and the toxic and harmful substance in a vapor state is inhaled into the harmful gas detector by heating and volatilizing.
According to the above scheme, further, as shown in fig. 2, the heating module 4 of the embodiment of the present invention includes a heating film 41, a temperature sensor 42 and a temperature feedback control circuit unit 43, the heating film 41 is disposed on the outer surface of the glass cover 31, the temperature sensor 42 is disposed in the glass cover 31, and the temperature feedback control circuit unit 43 is configured to control the operations of the heating film 41 and the temperature sensor 42, and send the detected temperature data of the harmful gas to the embedded control module 2.
In this embodiment, the heating film 41 may be graphene, but may also be a heating film made of other materials, which is not illustrated herein. In addition, in the present embodiment, the surface of the heating film is subjected to insulation, waterproof, and corrosion-resistant treatments.
In the present embodiment, the temperature sensor 42 may be disposed in close contact with the inner surface of the glass cover 31, or may be disposed at an intermediate position inside the glass cover 31, as long as it can measure the temperature of the harmful gas inside the glass cover, and is not particularly limited herein. The temperature sensor 42 in this embodiment may be: TMP112 AIDRL. It should be noted that, in the present embodiment, the temperature sensor 42 may also be another similar type of temperature sensor, which is not illustrated herein.
According to the above scheme, further, as shown in fig. 2, the embedded control module 2 of the embodiment of the present invention includes a signal conditioning circuit unit 21, which is respectively connected with the gas concentration detection module 3 and the heating module 4, and is used for converting the temperature data of the harmful gas and the gas concentration data into an electrical signal. In this embodiment, the temperature data and the gas concentration data of the harmful gas are collected by the data collection unit 22, and then converted into electric signals by the signal conditioning circuit unit 21 and sent to the chip on chip unit 23 for processing.
According to the above scheme, further, as shown in fig. 2, the harmful gas detector 100 according to the embodiment of the present invention further includes an air extraction module 5 connected to the embedded control module 2, and the air extraction module 5 extracts the harmful gas in the glass cover 31 into the absorption liquid 300 outside the air outlet 12.
In this embodiment, the pumping module 5 may be a diaphragm vacuum pump, such as a diaphragm liquid pump NFB30TTDC-4B and a Z1303-2003 micro vacuum pump.
According to the above solution, further, referring to fig. 2 and 5, the air extraction module 5 of the embodiment of the present invention includes a micro motor 51 and an air extraction pump 52, and the embedded control module 2 sends a control signal to the micro motor 51 to drive the air extraction pump 52 to extract the harmful gas in the glass cover 31.
According to the above scheme, further, as shown in fig. 2, the harmful gas detector 100 of the embodiment of the present invention further includes a communication module 6 connected to the embedded control module 2, the communication module 6 is configured to send the temperature data and the gas concentration data of the harmful gas to the portable terminal 200, and the communication module 6 is a bluetooth and/or a USB.
According to the above scheme, further, as shown in fig. 2 and fig. 4, the harmful gas detector 100 according to the embodiment of the present invention further includes an indicator light module 7 connected to the embedded control module 2, where the indicator light module 7 includes one or more of a working status indicator light, a heating indicator light, an electric quantity indicator light, and a power indicator light.
According to the above scheme, further, as shown in fig. 3, the harmful gas detector 100 of the embodiment of the present invention further includes an energy storage battery 8 and a power management module 9, wherein the energy storage battery 8 supplies power to the embedded control module 2, the gas concentration detection module 3, the heating module 4, the air exhaust module 5, the communication module 6, and the indicator light module 7 through the power management module 9. In this embodiment, a 12V/10Ah lithium battery can be selected as the internal energy storage battery, and the internal energy storage battery is converted into a required voltage signal by the signal conditioning circuit unit, so as to be used by the whole detector.
Referring to fig. 4, the harmful gas detector 100 according to the embodiment of the present invention adopts an aluminum alloy integrated fully-sealed casing 1, has shock-resistant vibration capability, and is made of a metal material that is rust-resistant and corrosion-resistant and is coated. And a damping foot pad 14 is arranged at each of eight fixed angles of the shell 1, so that the damping intensity can be effectively improved. The shell 1 is also provided with a handle 13, which is convenient for carrying.
Claims (10)
1. The utility model provides a harmful gas detector, includes the casing, its characterized in that still including setting up embedded control module in the casing, with gas concentration detection module and the heating module that embedded control module connects, gas concentration detection module include the glass cover and set up in gas sensor in the glass cover, gas sensor is used for detecting harmful gas's concentration in the glass cover, the heating module is used for heating harmful gas in the glass cover and with the temperature data transmission of the harmful gas who detects give embedded control module, when harmful gas's temperature reaches preset temperature threshold value, embedded control module control gas sensor work, and with detecting harmful gas's temperature data and gas concentration data transmission give outside portable terminal.
2. The harmful gas detector according to claim 1, wherein the gas concentration detection module further includes a control circuit unit, and the gas sensor is connected to the embedded control module via the control circuit unit.
3. The harmful gas detector according to claim 2, wherein the gas concentration detection module further comprises a gas guide tube, and the gas guide tube is respectively connected with the gas inlet and the glass cover.
4. The harmful gas detector according to claim 3, wherein the heating module includes a heating film disposed on an outer surface of the glass cover, a temperature sensor disposed in the glass cover, and a temperature feedback control circuit unit for controlling operations of the heating film and the temperature sensor and transmitting detected temperature data of the harmful gas to the embedded control module.
5. The harmful gas detector according to claim 4, wherein the embedded control module includes a signal conditioning circuit unit, which is connected to the gas concentration detection module and the heating module, respectively, and converts the temperature data and the gas concentration data of the harmful gas into electrical signals.
6. The harmful gas detector according to claim 5, further comprising an air extraction module connected to the embedded control module, wherein the air extraction module extracts the harmful gas in the glass cover into the absorption liquid outside the air outlet.
7. The harmful gas detector according to claim 6, wherein the air pumping module comprises a micro motor and an air pumping pump, and the embedded control module sends a control signal to the micro motor to drive the air pumping pump to pump the harmful gas in the glass cover.
8. The harmful gas detector according to claim 7, further comprising a communication module connected to the embedded control module, wherein the communication module is configured to send temperature data and gas concentration data of the harmful gas to the portable terminal, and the communication module is bluetooth and/or USB.
9. The hazardous gas detector of claim 8, further comprising an indicator light module connected to the embedded control module, the indicator light module comprising one or more of a working status indicator light, a heating indicator light, a power indicator light, and a power indicator light.
10. The harmful gas detector according to claim 9, further comprising an energy storage battery and a power management module, wherein the energy storage battery supplies power to the embedded control module, the gas concentration detection module, the heating module, the air extraction module, the communication module, and the indicator light module through the power management module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022229293.4U CN213181489U (en) | 2020-10-09 | 2020-10-09 | Harmful gas detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022229293.4U CN213181489U (en) | 2020-10-09 | 2020-10-09 | Harmful gas detector |
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| CN213181489U true CN213181489U (en) | 2021-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI796829B (en) * | 2021-11-10 | 2023-03-21 | 沃亞科技股份有限公司 | Gas detection system and detection method using the same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI796829B (en) * | 2021-11-10 | 2023-03-21 | 沃亞科技股份有限公司 | Gas detection system and detection method using the same |
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