CN209372742U - A kind of combustable gas concentration detection alarm sensor - Google Patents
A kind of combustable gas concentration detection alarm sensor Download PDFInfo
- Publication number
- CN209372742U CN209372742U CN201822089528.7U CN201822089528U CN209372742U CN 209372742 U CN209372742 U CN 209372742U CN 201822089528 U CN201822089528 U CN 201822089528U CN 209372742 U CN209372742 U CN 209372742U
- Authority
- CN
- China
- Prior art keywords
- pedestal
- wire electrode
- cover
- fuel gas
- gas concentration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to fuel gas detection technique fields, disclose a kind of combustable gas concentration detection alarm sensor, including pedestal and cover, cover are fixed on pedestal and are encircled into sensing chamber with pedestal；Fixed on pedestal there are two leads, and it is indoor that one end of lead is located at detection；Detection interior is provided with wire electrode, and wire electrode both ends are electrically connected with two leads respectively, and wire electrode surface is coated with catalyst coat；Cover is equipped with opening far from pedestal one end, and there are two electrode plates for the setting of cover outer wall.The utility model outside cover by being arranged electrode plate, before the catalyst coat effect on fuel gas and wire electrode, fuel gas molecule is in upper state under pre-add electric field action, the fuel gas molecule of upper state can quickly react with the catalyst coat on wire electrode surface, the rate for being conducive to improve fuel gas flameless combustion, shortens alert reaction time.
Description
Technical field
The utility model relates to fuel gas detection technique fields, and in particular to a kind of combustable gas concentration detection alarm use
Sensor.
Background technique
Sensor is a kind of detection device, can experience measured information, and the information that can will be experienced, by a set pattern
Rule is for conversion into electric signal or the information output of other required forms, to meet transmission, processing, storage, the display, record of information
With control etc. require.
Catalytic type combustible gas sensor is mainly made of inert electrode silk using the fuel factor principle of catalysis burning,
Under the conditions of certain temperature, flameless combustion occurs under the action of wire electrode surface catalyst for fuel gas, and wire electrode temperature is just
It increases, is also accordingly increased by its internal resistance, pass through the size of the variation of measuring electrode silk resistivity, so that it may learn flammable
The concentration of property gas.
But the reaction time that existing combustible gas sensor carries out flameless combustion under conditions of catalyst generally requires 8
~10 seconds, the reaction time was relatively long.
Utility model content
Based on problem above, the utility model provides a kind of combustable gas concentration detection alarm sensor, and can be improved can
The rate of combustion gas body flameless combustion shortens alert reaction time.
In order to solve the above technical problems, the utility model provides following technical scheme:
A kind of combustable gas concentration detection alarm sensor, including by pedestal made from insulating materials and cover, cover
Body is fixed on pedestal and is encircled into a sensing chamber with pedestal；It is fixed on pedestal that there are two lead, one end positions of leads
Indoor in detection, the other end extends outside the base；Detection interior is provided with wire electrode made of inert electrode, wire electrode both ends difference
It is electrically connected with two leads, wire electrode surface is coated with catalyst coat；Cover is equipped with opening, cover outer wall far from pedestal one end
Face and the electrode plate being parallel to each other there are two being arranged.
Further, the side wall of pedestal, which is provided with, will test the heat dissipation channel that room is connected to ambient atmosphere.
Further, protective resistance is provided on one of lead.
Further, wire electrode coiling is spiral.
Further, the opening of cover is provided with anti-dust filter mesh.
Compared with prior art, the utility model has the beneficial effects that the utility model is mutual by being arranged outside cover
Parallel electrode plate, before the catalyst coat effect on fuel gas and wire electrode, into the fuel gas point of sensing chamber
Son is in upper state by the electric field action between electrode plate, and the fuel gas molecule of upper state can be with the catalysis on wire electrode surface
Agent coating quickly reacts, and is conducive to the rate for improving fuel gas flameless combustion, shortens alert reaction time.
Detailed description of the invention
Fig. 1 is that the combustable gas concentration of the present embodiment detects alarm sensor structure schematic diagram；
Fig. 2 is the overlooking structure figure that combustable gas concentration detects alarm sensor in Fig. 1；
Wherein: 1, pedestal；2, cover；3, sensing chamber；4, lead；5, wire electrode；6, it is open；7, electrode plate；8, heat dissipation is logical
Road；9, protective resistance；10, anti-dust filter mesh.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment:
Referring to Fig. 1 and Fig. 2, a kind of combustable gas concentration detects alarm sensor, including by made from insulating materials
Pedestal 1 and cover 2, cover 2 are fixed on pedestal 1 and are encircled into a sensing chamber 3 with pedestal 1；It is fixed on pedestal 1 that there are two draw
One end of line 4,4 lead 4 of lead is located in sensing chamber 3, and the other end stretches out outside pedestal 1；Inert electrode system is provided in sensing chamber 3
At wire electrode 5,5 both ends of wire electrode are electrically connected with two leads 4 respectively, and 5 surface of wire electrode is coated with catalyst coat；Cover
2 are equipped with opening 6 far from 1 one end of pedestal, there are two the settings of 2 outer wall of cover face and the electrode plate 7 being parallel to each other.
In the present embodiment, two leads 4 are connect with the positive and negative anodes of low-voltage dc power supply respectively, the wire electrode 5 after energization
Certain heat is generated, wire electrode 5 is made to be increased to certain temperature.Two electrode plates 7 are respectively connected to high-voltage DC power supply
Positive and negative anodes generate electric field between two electrode plates 7.When there is fuel gas molecule to enter sensing chamber 3 by the opening 6 of cover 2,
Fuel gas molecule is activated into the fuel gas molecule of upper state under the action of electric field first, in the effect of catalyst coat
Under, the fuel gas molecule of upper state occurs flameless combustion with oxygen in sensing chamber 3 and reacts, and it is anti-that wire electrode 5 absorbs flameless combustion
After heat caused by answering, the temperature of wire electrode 5 is increased, and the resistivity in the raised wire electrode 5 of temperature increases, low-voltage DC
The electric current in series circuit that source is formed with wire electrode 5 changes, and the cont signal for being achieved in fuel gas is converted into electricity
Signal.Before the catalyst coat effect on fuel gas and wire electrode 5, the fuel gas molecule into sensing chamber 3 is flammable
Gas molecule is in upper state under pre-add electric field action, and the fuel gas molecule of upper state can be urged with 5 surface of wire electrode
Agent coating quickly reacts, and is conducive to the rate for improving fuel gas flameless combustion, shortens alert reaction time.
The side wall of pedestal 1, which is provided with, will test the heat dissipation channel 8 that room 3 is connected to ambient atmosphere, because fuel gas generally to
Upper movement, so when the installation of sensor, generally making the opening 6 of cover 2, wire electrode 5 heats the air in sensing chamber 3 downward
Afterwards, the air after heating by 8 flood sensor of heat dissipation channel outside, at this time in sensing chamber 3 air pressure reduce, outside air is by cover 2
Opening 6 at by actively being sucked sensing chamber 3, convenient for the Concentration Testing of fuel gas in air, while the air being heated is continuous
Overflow checking room 3, is also beneficial to the heat dissipation of wire electrode 5, further extends the service life of wire electrode 5.
It is provided with protective resistance 9 on one of lead 4, because the diameter of wire electrode 5 is smaller, so that the whole electricity of wire electrode 5
Hinder it is less than normal, or when wire electrode 5 by the lesser inert material of resistivity be made when, 5 overall resistance of wire electrode is also less than normal, be easy produce
The problem of raw wire electrode 5 is blown, by the way that protective resistance 9 is arranged, composition low-voltage dc power supply, wire electrode 5 and protective resistance 9 are gone here and there
The detection circuit of connection, guard electrode silk 5 are not blown.
5 coiling of wire electrode is spiral, considerably increases the length of wire electrode 5；In the detection process, combustible gas is increased
The contact area of body and wire electrode 5, the even heat for generating flameless combustion are stablized, and the essence of combustable gas concentration detection is improved
Exactness.
It is provided with anti-dust filter mesh 10 at the opening 6 of cover 2, can prevent the particulate matter in air from entering sensing chamber 3
It is adhered on the catalyst coat on 5 surface of wire electrode afterwards, and hinders contact of the catalyst with fuel gas, improve the essence of detection
Exactness.
It as above is the embodiments of the present invention.Design parameter in above-described embodiment and embodiment is merely to clear
Utility model verification process is stated by Chu, not to limit the scope of patent protection of the utility model, the patent of the utility model
Protection scope is still subject to the claims, equivalent made by all specifications and accompanying drawing content with the utility model
Structure change similarly should be included in the protection scope of the utility model.
Claims (5)
1. a kind of combustable gas concentration detects alarm sensor, it is characterised in that: including by pedestal made from insulating materials
(1) it is fixed on pedestal (1) with cover (2), the cover (2) and is encircled into a sensing chamber (3) with pedestal (1)；The bottom
Fixed there are two lead (4) on seat (1), one end of the lead (4) is located in sensing chamber (3), and the other end stretches out pedestal (1)
Outside；Is provided with wire electrode made of inert electrode (5) in the sensing chamber (3), wire electrode (5) both ends respectively with two institutes
Lead (4) electric connection is stated, wire electrode (5) surface is coated with catalyst coat；The cover (2) is far from pedestal (1) one end
Equipped with opening (6), there are two cover (2) the outer wall settings face and the electrode plate (7) being parallel to each other.
2. combustable gas concentration according to claim 1 detects alarm sensor, it is characterised in that: the pedestal (1)
Side wall be provided with and will test the heat dissipation channel (8) that room (3) is connected to ambient atmosphere.
3. combustable gas concentration according to claim 1 detects alarm sensor, it is characterised in that: described in one of them
Protective resistance (9) are provided on lead (4).
4. combustable gas concentration according to claim 1 detects alarm sensor, it is characterised in that: the wire electrode
(5) coiling is spiral.
5. combustable gas concentration according to claim 1 detects alarm sensor, it is characterised in that: the cover (2)
Opening (6) at be provided with anti-dust filter mesh (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822089528.7U CN209372742U (en) | 2018-12-12 | 2018-12-12 | A kind of combustable gas concentration detection alarm sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822089528.7U CN209372742U (en) | 2018-12-12 | 2018-12-12 | A kind of combustable gas concentration detection alarm sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209372742U true CN209372742U (en) | 2019-09-10 |
Family
ID=67832459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822089528.7U Expired - Fee Related CN209372742U (en) | 2018-12-12 | 2018-12-12 | A kind of combustable gas concentration detection alarm sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209372742U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606419A (en) * | 2021-08-06 | 2021-11-05 | 北京奕博科技有限公司 | Anti-freezing device of natural gas pipeline |
-
2018
- 2018-12-12 CN CN201822089528.7U patent/CN209372742U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606419A (en) * | 2021-08-06 | 2021-11-05 | 北京奕博科技有限公司 | Anti-freezing device of natural gas pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203350241U (en) | Testing system for detecting characteristic parameters of gas sensor | |
| WO2007114267A1 (en) | Catalytic combustion type gas sensor, detection device and compensating device | |
| CN203731704U (en) | Dry-burning-prevention device and electric water heater | |
| CN209372742U (en) | A kind of combustable gas concentration detection alarm sensor | |
| CN204257778U (en) | There is the battery of temperature alarming device | |
| JP2011227069A (en) | Gas detection device and gas detection method | |
| CN103629707B (en) | There is the gas combustion cooking utensil anti-dry burning device of spontaneous electrical function | |
| CN104407034A (en) | Gas sensor chip | |
| CN204087439U (en) | A kind of detecting alarm | |
| CN218765843U (en) | Hydrogen leakage detection system | |
| CN203479739U (en) | Zirconium oxide oxygen sensor for automobile | |
| CN103926210A (en) | Device for detecting species of gases | |
| CN205210605U (en) | Harmful gas data collection station and monitoring system who constitutes thereof | |
| CN203644181U (en) | Detection and alarm device for leakage of combustible gas | |
| CN215679600U (en) | Gas concentration detection alarm device for gas well anti-theft box | |
| CN202109957U (en) | Novel underneath-type water temperature and water level sensor for solar energy water heater | |
| CN209167195U (en) | A kind of permanent protective property sheet type sensor | |
| CN210983697U (en) | Catalytic combustion type combustible gas leakage detection device | |
| CN210166656U (en) | Temperature controller on-off temperature detection device | |
| CN106369638A (en) | Gas stove and control method thereof | |
| CN209707634U (en) | The detection device of insulation performance under a kind of environment for cable high-temperature | |
| CN113470322A (en) | Gas concentration detection alarm device for gas well anti-theft box and use method thereof | |
| CN206132919U (en) | Power equipment insulation monitoring and warning device | |
| CN206638556U (en) | A kind of Atmospheric particulates detection means | |
| CN206039803U (en) | Combustible gas alarm control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190910 Termination date: 20201212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |