CN207908420U - A kind of electrochemical sensor formaldehyde testing equipment - Google Patents
A kind of electrochemical sensor formaldehyde testing equipment Download PDFInfo
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- CN207908420U CN207908420U CN201820183060.5U CN201820183060U CN207908420U CN 207908420 U CN207908420 U CN 207908420U CN 201820183060 U CN201820183060 U CN 201820183060U CN 207908420 U CN207908420 U CN 207908420U
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- temperature control
- formaldehyde
- electrochemical sensor
- testing equipment
- gas
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Abstract
The utility model discloses a kind of electrochemical sensor formaldehyde testing equipment, detection device has an electrochemical sensor that can detect content of formaldehyde, including：Shell, display screen, filter, clarifier, microprocessor, temperature control device and air pump；Temperature control device includes temperature control box and thermostat, and temperature control box side is equipped at least one air inlet, and the other side is equipped with gas outlet；The filter and clarifier one end are connect with the air inlet respectively, other end JA(junction ambient) gas；The electrochemical sensor is mounted on inside the temperature control box；Described air pump one end connects the gas outlet, other end JA(junction ambient) gas；On the housing, the display screen, the air pump, the thermostat are electrically connected with the microprocessor respectively for the display screen installation.Zero formaldehyde environment, which is found, without user carries out zero point correction, it is user-friendly.Also, influence of the ambient temperature and humidity to testing result is reduced by clarifier and temperature control device, improves the accuracy of detection of detection device.
Description
Technical field
The utility model is related to formaldehyde examination technical fields, and in particular to a kind of electrochemical sensor formaldehyde testing equipment.
Background technology
Formaldehyde, a kind of irritant odor compound.Main harm shows as the stimulation to skin and mucosa, and formaldehyde reaches
When to a certain concentration, people just has sense of discomfort.Concentration of formaldehyde more than 0.08mg/m3 can cause to be envious, eye is itched, throat discomfort or pain
Pain etc..Especially newly-decorated room content of formaldehyde is higher, is the main inducing of numerous diseases.
Various harm based on formaldehyde, people are for the detection pay attention to day by day of content of formaldehyde in surrounding enviroment, formaldehyde examination
Therefore equipment generates.And the detection method of formaldehyde mainly has spectrophotometry, electrochemical assay, gas chromatography, liquid phase
Chromatography, sensor method etc..The mode that daily formaldehyde testing equipment mostly uses electrochemical sensor carries out the detection of content of formaldehyde.
It is influenced however, traditional formaldehyde testing equipment is easy humiture in by objective environment, and user needs voluntarily before testing
Zero point correction is done in the environment of zero formaldehyde.I.e. traditional formaldehyde testing equipment precision in the unfavorable environment of temperature and humidity
The bottom of compared with, and it is inconvenient to use.
Invention content
The purpose of this utility model is to provide a kind of electrochemical sensor formaldehyde testing equipments so that equipment detects formaldehyde
It is not influenced by ambient temperature and humidity during content, and easy to use.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of electrochemical sensor formaldehyde testing equipment, the detection device have the electrochemistry that can detect content of formaldehyde
Sensor, including：Shell, display screen, filter, clarifier, microprocessor, temperature control device and air pump；The temperature control device packet
Temperature control box and thermostat are included, the temperature control box side is equipped at least one air inlet, and the other side is equipped with gas outlet；The filter
It is connect respectively with the air inlet with described clarifier one end, other end JA(junction ambient) gas；The electrochemical sensor installation
Inside the temperature control box；Described air pump one end connects the gas outlet, other end JA(junction ambient) gas；The display screen installation
On the housing, the display screen, the air pump, the thermostat are electrically connected with the microprocessor respectively.
Further, the thermostat includes temperature sensor, refrigerating module and heating module, the temperature sensor,
Refrigerating module and heating module are electrically connected with the microprocessor respectively.
Further, further include air way switch valve, the filter and the clarifier by the air way switch valve with
The air inlet connection, the air way switch valve are electrically connected with the microprocessor.
Further, in the clarifier be added with calcium chloride, for absorb the moisture in environmental gas, alcohols material with
And Ammonia substance.
Further, activated carbon is added in the filter, for absorbing the formaldehyde in environmental gas.
Further, the electrochemical sensor is made of sensing electrode and counterelectrode.
Further, further include voice cue module, the voice cue module is electrically connected with the microprocessor.
Further, it is added with drier inside the temperature control box.
The beneficial effects of the utility model are：By be arranged filter detection device carry out formaldehyde zero point correction when pair
Formaldehyde in environmental gas is filtered so that user can carry out formaldehyde zero point correction in any place, easy to use.Pass through
Clarifier and temperature control device are set, the influence that ambient temperature and humidity detects detection device content of formaldehyde precision is can avoid.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of electrochemical sensor formaldehyde testing equipment disclosed by the utility model；
Fig. 2 is the utility model electrochemical sensor and temperature control device structural schematic diagram
1, electrochemical sensor；11, sensing electrode；12, counterelectrode；2, shell；3, display screen；
4, filter；5, clarifier；6, microprocessor；7, temperature control device；71, temperature control box；
711, air inlet；712, gas outlet；72, thermostat；721, temperature sensor；722, refrigerating module；
723, heating module；8, air pump；9, air way switch valve；10, voice cue module.
Specific implementation mode
The illustrative embodiments of the utility model are described in detail with reference to the accompanying drawings.To illustrative embodiments
Description merely for the sake of the purpose of demonstration, and be definitely not limitation to the utility model and its application or usage.
The design of the utility model most critical is：By the way that filter, clarifier and temperature control device is arranged so that formaldehyde is examined
Measurement equipment is easy to use, and reduces influence of the ambient temperature and humidity to detection device accuracy of detection.
A kind of electrochemical sensor formaldehyde testing equipment, the detection device have the electrochemistry that can detect content of formaldehyde
Sensor, including：Shell, display screen, filter, clarifier, microprocessor, temperature control device and air pump；The temperature control device packet
Temperature control box and thermostat are included, the temperature control box side is equipped at least one air inlet, and the other side is equipped with gas outlet；The filter
It is connect respectively with the air inlet with described clarifier one end, other end JA(junction ambient) gas；The electrochemical sensor installation
Inside the temperature control box；Described air pump one end connects the gas outlet, other end JA(junction ambient) gas；The display screen installation
On the housing, the display screen, the air pump, the thermostat are electrically connected with the microprocessor respectively.
It is found that being filtered to environmental gas in zero point correction by the way that filter is arranged, it is removed into the environment of equipment
Formaldehyde in gas.So that detection device carries out formaldehyde zero point correction using user without finding zero formaldehyde environment, facilitate user
Use.It is absorbed into the moisture in the environmental gas of equipment by the way that clarifier is arranged, adjusting electrochemistry by temperature control device passes
Sensor local environment temperature can reduce influence of the ambient temperature and humidity to detection device accuracy of detection.
Preferably, the thermostat includes temperature sensor, refrigerating module and heating module, the temperature sensor, cold
But module and heating module are electrically connected with the microprocessor respectively.
Preferably, further include air way switch valve, the filter and the clarifier pass through the air way switch valve and institute
Air inlet connection is stated, the air way switch valve is electrically connected with the microprocessor.
It is found that be electrically connected by air way switch valve and microprocessor, it is logical in the different working condition of detection device
The connection that microprocessor control air way switch valve carries out air inlet and filter or clarifier is crossed, can be user-friendly, it carries
High detection equipment automatization.
Preferably, in the clarifier be added with calcium chloride, for absorb the moisture in environmental gas, alcohols material and
Ammonia substance.
It is found that can absorb the device of moisture in air and equipment has very much, the utility model preferably adds calcium chloride, can
While absorbing moisture, the alcohols material and Ammonia substance in surrounding air are absorbed, further improves detection device detection
The precision of content of formaldehyde.
Preferably, activated carbon is added in the filter, for absorbing the formaldehyde in environmental gas.
It is found that the substance of absorbable formaldehyde includes diatom ooze, photocatalyst etc., the preferred activated carbon of the utility model carries out formaldehyde
Absorption, it is ensured that while formaldehyde absorption effect, reduce the production cost of detection device.
Preferably, the electrochemical sensor is made of sensing electrode and counterelectrode.
Preferably, further include voice cue module, the voice cue module is electrically connected with the microprocessor.
It is found that carry out voice broadcast to the different working condition of detection device by voice cue module, user can be allowed
More intuitively know equipment current state and testing result, improves the user experience.
Preferably, it is added with drier inside the temperature control box.
It is found that by adding drier inside temperature control box, it is ensured that electrochemical sensor detection environment is air-dried.
Further avoid influence of the air humidity to detection data.
Embodiment
Referring to Fig.1 and 2, the utility model provides a kind of electrochemical sensor formaldehyde testing equipment, including：
Electrochemical sensor 1, shell 2, display screen 3, filter 4, clarifier 5, microprocessor 6, temperature control device 7, air pump
8, air way switch valve 9 and voice cue module 10.
Temperature control device 7 includes temperature control box 71 and thermostat 72, and the side of the temperature control box 71 is provided at least one air inlet
711, the other side is provided with gas outlet 712.One end JA(junction ambient) gas of filter 4, the other end connect air inlet 711；Purification
One end JA(junction ambient) gas of device 5, the other end connect air inlet 711.Wherein, the quantity of air inlet 711 can also may be used for one
Think multiple.For example, plug, the other end point can be arranged in the tip position that filter 4 and clarifier 5 are contacted with environmental gas
It does not connect from different air inlets 711, when detection device is in zero point correction state or detecting state, also may be used by plug
Achieve the purpose that gas circuit switches.Therefore, the quantity of air inlet 711 is not limited.Preferably, the utility model uses one
Air inlet 711 connects filter 4, clarifier 5 and air inlet 711 by air way switch valve 9.The air way switch valve 9 and microprocessor
Device 6 is electrically connected, by microprocessor 6 according to the current zero point correction state or detecting state switch filtering gas circuit of detection device
Or purification gas circuit.
Electrochemical sensor 1 is mounted on the inside of temperature control box 71, and electrochemical sensor 1 with tested gas by reacting
And generate the electric signal directly proportional to gas concentration and carry out work, electrochemical sensor 1 is made of sensing electrode 71 and counterelectrode 72,
And separated by a thin electrolyte layers, gas is reacted by small hollow billet type trepanning with sensor first, followed by hydrophobic
Barrier layer eventually arrives at electrode surface, proper amount of gas can be allowed to react with sensing electrode in this way, to be formed
Sufficient electric signal, while preventing electrolyte from leaking out sensor, the gas across barrier diffusion reacts with sensing electrode 71,
Oxidation mechanism or reduction mechanism may be used in sensing electrode 71.These reactions by the electrode material that is designed for tested gas into
Row catalysis, by the resistor connected between electrode, the electric current directly proportional to tested gas concentration can flow between positive electrode and negative electrode.It surveys
It measures the electric current and can determine gas concentration.Thermostat 72 includes temperature sensor 721, refrigerating module 722 and heating module 723.
Temperature sensor 721, refrigerating module 722 and heating module 723 are electrically connected with microprocessor 6 respectively.Wherein, temperature sensor
721 for detecting temperature in insulating box 72, and by testing result real-time Transmission to microprocessor 6, and microprocessor 6 is tied according to detection
Fruit controls the keying of refrigerating module 722 or heating module 723, achievees the purpose that control temperature in insulating box 72 with this.
The influence of content of formaldehyde is detected to reduce environment temperature to detection device.
Display screen 3 is mounted on shell 2, is electrically connected with microprocessor 6.For showing detection device current state and detection
Data.User is allow intuitively to check detection device current state and environment detection result.
One end of air pump 8 connects gas outlet 712, other end JA(junction ambient) gas.Air pump 8 makes for extracting environmental gas
Environmental gas enters insulating box by filter 4 or clarifier 5 through air inlet 711, is then discharged by gas outlet 712.With this shape
At windstream.
Preferably, voice cue module 10 is set, which is electrically connected with microprocessor 6.For to inspection
The different conditions of measurement equipment carry out voice broadcast, further increase the experience that user uses detection device.
Preferably, drier is added inside temperature control box 71,71 inner air moisture of temperature control box is carried out by drier
Further adsorb.To ensure that the air humidity inside temperature control box 71 is less than 50%.Air humidity is further decreased to testing result
Influence.
The electrochemical sensor formaldehyde testing equipment of the utility model finds zero formaldehyde compared with prior art, without user
Environment carries out zero point correction, user-friendly.Also, it reduces ambient temperature and humidity by clarifier and temperature control device to tie detection
The influence of fruit improves the accuracy of detection of detection device.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in relevant technology neck
Domain is equally included in the patent within the scope of the utility model.
Claims (8)
1. a kind of electrochemical sensor formaldehyde testing equipment, there is the detection device electrochemistry that can detect content of formaldehyde to pass
Sensor, which is characterized in that including：Shell, display screen, filter, clarifier, microprocessor, temperature control device and air pump；The temperature
Control device includes temperature control box and thermostat, and the temperature control box side is equipped at least one air inlet, and the other side is equipped with gas outlet；Institute
It states filter and described clarifier one end is connect with the air inlet respectively, other end JA(junction ambient) gas；The electrochemistry passes
Sensor is mounted on inside the temperature control box；Described air pump one end connects the gas outlet, other end JA(junction ambient) gas；It is described aobvious
Display screen is installed on the housing, and the display screen, the air pump, the thermostat are electrically connected with the microprocessor respectively.
2. a kind of electrochemical sensor formaldehyde testing equipment as described in claim 1, it is characterised in that：The thermostat includes
Temperature sensor, refrigerating module and heating module, the temperature sensor, refrigerating module and heating module respectively with micro- place
Manage device electrical connection.
3. a kind of electrochemical sensor formaldehyde testing equipment as described in claim 1, it is characterised in that：It further include gas circuit switching
Valve, the filter and the clarifier are connect by the air way switch valve with the air inlet, the air way switch valve with
The microprocessor electrical connection.
4. a kind of electrochemical sensor formaldehyde testing equipment as described in claim 1, it is characterised in that：Add in the clarifier
Added with calcium chloride, for absorbing the moisture in environmental gas, alcohols material and Ammonia substance.
5. a kind of electrochemical sensor formaldehyde testing equipment as described in claim 1, it is characterised in that：Add in the filter
Added with activated carbon, for absorbing the formaldehyde in environmental gas.
6. a kind of electrochemical sensor formaldehyde testing equipment as described in claim 1, it is characterised in that：The electrochemical sensing
Device is made of sensing electrode and counterelectrode.
7. a kind of electrochemical sensor formaldehyde testing equipment as described in claim 1, it is characterised in that：It further include voice prompt
Module, the voice cue module are electrically connected with the microprocessor.
8. a kind of electrochemical sensor formaldehyde testing equipment as described in claim 1, it is characterised in that：Inside the temperature control box
Added with drier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820183060.5U CN207908420U (en) | 2018-02-02 | 2018-02-02 | A kind of electrochemical sensor formaldehyde testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820183060.5U CN207908420U (en) | 2018-02-02 | 2018-02-02 | A kind of electrochemical sensor formaldehyde testing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207908420U true CN207908420U (en) | 2018-09-25 |
Family
ID=63561946
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820183060.5U Active CN207908420U (en) | 2018-02-02 | 2018-02-02 | A kind of electrochemical sensor formaldehyde testing equipment |
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| Country | Link |
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| CN (1) | CN207908420U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507249A (en) * | 2018-12-20 | 2019-03-22 | 汉威科技集团股份有限公司 | A kind of new gas detector with self-cleaning function |
| CN110554174A (en) * | 2019-08-19 | 2019-12-10 | 上海摇橹仪器设备有限公司 | Sensor for detecting exhaled gas |
| WO2024041118A1 (en) * | 2022-08-24 | 2024-02-29 | 天津大学 | Intelligent electrochemical-sensing cabin integrating environmental parameters |
-
2018
- 2018-02-02 CN CN201820183060.5U patent/CN207908420U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507249A (en) * | 2018-12-20 | 2019-03-22 | 汉威科技集团股份有限公司 | A kind of new gas detector with self-cleaning function |
| CN110554174A (en) * | 2019-08-19 | 2019-12-10 | 上海摇橹仪器设备有限公司 | Sensor for detecting exhaled gas |
| WO2024041118A1 (en) * | 2022-08-24 | 2024-02-29 | 天津大学 | Intelligent electrochemical-sensing cabin integrating environmental parameters |
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