CN208420778U - A kind of catalytic combustion method gas sensor - Google Patents
A kind of catalytic combustion method gas sensor Download PDFInfo
- Publication number
- CN208420778U CN208420778U CN201820941951.2U CN201820941951U CN208420778U CN 208420778 U CN208420778 U CN 208420778U CN 201820941951 U CN201820941951 U CN 201820941951U CN 208420778 U CN208420778 U CN 208420778U
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- mounting base
- porous body
- spherical porous
- platinum filament
- lead
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Abstract
The utility model discloses a kind of catalytic combustion method gas sensors, including mounting base, lead, spherical porous body, platinum filament coil, protective cover, fixture block, connecting rod and Air Filter, the mounting base bottom insertion is equipped with rubber tube, lead is symmetrically arranged in the mounting base, one end of the lead passes through rubber tube exposure in air, and lead is slidably connected with rubber tube, spherical porous body is equipped in the mounting base, platinum filament coil is equipped in the spherical porous body, the both ends of the platinum filament coil both pass through spherical porous body and are fixedly connected respectively with two leads, the mounting base inner wall symmetrically offers sliding slot, sliding block is slidably connected in the sliding slot, and the side of sliding block offers mounting groove, the slider bottom is fixed with spring, the spring is fixedly connected far from one end of sliding block with mounting base, this device breaks down in platinum filament coil After do not need entire more emat sensor, it is only necessary to band platinum filament coil is replaced, save the cost, and the device is far from simple to operation.
Description
Technical field
The utility model relates to sensor technical field, specially a kind of catalytic combustion method gas sensor.
Background technique
Catalytic combustion method gas sensor is to be matched using the fuel factor principle of catalysis burning by detecting element and compensating element,
To measuring bridge is constituted, under the conditions of certain temperature, fuel gas is sent out under the action of detecting element carrier surface and catalyst
Raw flameless combustion, bed temperature just increase, and are also accordingly increased by its internal platinum wire resistance, so that it is flat to lose balanced bridge
Weighing apparatus exports an electric signal directly proportional to combustable gas concentration, and the size of the resistance variations by measuring platinum filament, being known that can
Combustion property gas concentration, according to one kind described in existing license notification number CN 206235402U it is industrial convenient for fixation
Temperature sensor, the device are that sensor is fixed in mounting base, can only be whole when sensor key part failure
More emat sensor, undertaking is higher, for this purpose, it is proposed that a kind of catalytic combustion method gas sensor.
Utility model content
The purpose of this utility model is to provide a kind of catalytic combustion method gas sensors, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the utility model provides the following technical solutions: a kind of catalytic combustion method gas sensor, packet
Mounting base, lead, spherical porous body, platinum filament coil, protective cover, fixture block, connecting rod and Air Filter are included, the mounting base bottom is embedding
Entering and be equipped with rubber tube, lead is symmetrically arranged in the mounting base, one end of the lead passes through rubber tube exposure in air, and
Lead is slidably connected with rubber tube, and spherical porous body is equipped in the mounting base, is equipped with platinum filament coil in the spherical porous body,
The both ends of the platinum filament coil both pass through spherical porous body and are fixedly connected respectively with two leads, and the mounting base inner wall is symmetrically opened
Equipped with sliding slot, sliding block is slidably connected in the sliding slot, and the side of sliding block offers mounting groove, the slider bottom is fixed with
Spring, the spring are fixedly connected far from one end of sliding block with mounting base, and protective cover, the protective cover are equipped in the mounting base
Outside is symmetrically fixed with fixture block, and the fixture block is located in mounting groove, and side of the sliding block far from fixture block is fluted, the groove
Connecting rod is inside slidably connected, symmetrically offers L-type slot on the outside of the mounting base, the L-type slot is connected to sliding slot, the connection
Bar passes through sliding slot and the exposure of L-type slot in air far from one end of sliding slot.
Preferably, Air Filter is fixed at the top of the protective cover.
Preferably, handle is fixed at the top of the Air Filter.
Preferably, the spherical porous body outer side covering has precious metal catalyst layer.
Compared with prior art, the utility model has the beneficial effects that
1, the sensor is placed in the environment for needing to detect by the utility model, and under normal circumstances, electric bridge is balance,
V0=V1, output zero, in the presence of having fuel gas, fuel gas can the combustion of output nonflame after contacting with precious metal catalyst layer
It burns, at this moment resistance will increase detecting element (having precious metal catalyst layer on the outside of detecting element, that is, platinum filament coil), and contrast element is (right
Than there is no precious metal catalyst layer on the outside of element, that is, platinum filament coil) temperature-resistant resistance will not change, and circuit can measure the change of resistance
The variation for changing V0 < V1 voltage is directly proportional to the concentration of fuel gas, at this moment can measure the concentration of fuel gas.
2, when the utility model is needed replacing when platinum filament coil failure, pull handle is not until stretchy, promotion connect
Bar makes connecting rod push the L-type groove other end to, and at this moment sliding block just will not decline, and at this moment can remove protective cover, takes out platinum filament
Coil is replaced, and platinum filament coil does not need entire more emat sensor save the cost after breaking down.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model a-quadrant structural schematic diagram；
Fig. 3 is the utility model mounting base structural schematic diagram；
Fig. 4 is the utility model circuit module figure.
In figure: 1, mounting base；2, lead；3, spherical porous body；4, platinum filament coil；5, precious metal catalyst layer；6, sliding slot；7,
Sliding block；8, mounting groove；9, spring；10, protective cover；11, fixture block；12, groove；13, connecting rod；14, L-type slot；15, Air Filter；
16, handle；17, rubber tube.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of catalytic combustion method gas sensor, including
Mounting base 1, lead 2, spherical porous body 3, platinum filament coil 4, protective cover 10, fixture block 11, connecting rod 13 and Air Filter 15, the peace
It fills the insertion of 1 bottom of seat and is equipped with rubber tube 17, lead 2 is symmetrically arranged in the mounting base 1, one end of the lead 2 passes through rubber
Cylinder 17 exposes in air, and lead 2 is slidably connected with rubber tube 17, and spherical porous body 3 is equipped in the mounting base 1, described
Be equipped with platinum filament coil 4 in spherical porous body 3, the both ends of the platinum filament coil 4 both pass through spherical porous body 3 respectively with two leads
2 are fixedly connected, and 1 inner wall of mounting base symmetrically offers sliding slot 6, slidably connect sliding block 7 in the sliding slot 6, and sliding block 7
Side offers mounting groove 8, and 7 bottom of sliding block is fixed with spring 9, the one end of the spring 9 far from sliding block 7 and mounting base 1
It is fixedly connected, protective cover 10 is equipped in the mounting base 1, is symmetrically fixed with fixture block 11, the fixture block on the outside of the protective cover 10
11 are located in mounting groove 8, side fluted 12 of the sliding block 7 far from fixture block 11, slidably connect connection in the groove 12
Bar 13,1 outside of mounting base symmetrically offer L-type slot 14, and the L-type slot 14 is connected to sliding slot 6, and the connecting rod 13 is separate
One end of sliding slot 6 passes through sliding slot 6 and the exposure of L-type slot 14 in air.
It is fixed with Air Filter 15 at the top of the protective cover 10, can prevent sundries from entering influences work in mounting base 1.
It is fixed with handle 16 at the top of the Air Filter 15, it can be convenient for pulling protective cover 10.
3 outer side covering of spherical porous body has precious metal catalyst layer 5, and the fuel gas that needs can be made to detect, which encounters, urges
Flameless combustion occurs after changing layer 5.
Working principle are as follows: the sensor is placed in the environment for needing to detect, under normal circumstances, electric bridge is balance,
V0=V1, output zero, in the presence of having fuel gas, fuel gas can the combustion of output nonflame after contacting with precious metal catalyst layer 5
It burns, at this moment 4 resistance of platinum filament coil will increase, and contrast element (without precious metal catalyst layer 5 on the outside of platinum filament coil 4) is temperature-resistant
Resistance will not change, and the variation that circuit can measure the variation V0 < V1 voltage of resistance is directly proportional to the concentration of fuel gas, at this moment
The concentration that fuel gas can be measured, when being needed replacing when 4 failure of platinum filament coil, pull handle 16 until not stretchy,
Connecting rod 13 is pushed, so that connecting rod 13 is pushed the L-type groove other end to, at this moment sliding block 7 just will not decline, at this moment can be by protective cover
10 remove, and take out platinum filament coil 4 and are replaced.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of catalytic combustion method gas sensor, including mounting base (1), lead (2), spherical porous body (3), platinum filament coil
(4), protective cover (10), fixture block (11), connecting rod (13) and Air Filter (15), it is characterised in that: mounting base (1) bottom is embedding
Enter to be equipped with rubber tube (17), be symmetrically arranged with lead (2) in the mounting base (1), one end of the lead (2) passes through rubber tube
(17) it exposes in air, and lead (2) is slidably connected with rubber tube (17), spherical porous body is equipped in the mounting base (1)
(3), platinum filament coil (4) are equipped in the spherical porous body (3), the both ends of the platinum filament coil (4) both pass through spherical porous body
(3) it is fixedly connected respectively with two leads (2), mounting base (1) inner wall symmetrically offers sliding slot (6), in the sliding slot (6)
It slidably connects sliding block (7), and the side of sliding block (7) offers mounting groove (8), sliding block (7) bottom is fixed with spring
(9), the spring (9) is fixedly connected far from the one end of sliding block (7) with mounting base (1), and protective cover is equipped in the mounting base (1)
(10), it is symmetrically fixed with fixture block (11) on the outside of the protective cover (10), the fixture block (11) is located in mounting groove (8), the cunning
Side of the block (7) far from fixture block (11) is fluted (12), slidably connects connecting rod (13), the installation in the groove (12)
It is symmetrically offered L-type slot (14) on the outside of seat (1), the L-type slot (14) is connected to sliding slot (6), and the connecting rod (13) is far from sliding
One end of slot (6) passes through sliding slot (6) and L-type slot (14) exposure in air.
2. a kind of catalytic combustion method gas sensor according to claim 1, it is characterised in that: protective cover (10) top
Portion is fixed with Air Filter (15).
3. a kind of catalytic combustion method gas sensor according to claim 2, it is characterised in that: Air Filter (15) top
Portion is fixed with handle (16).
4. a kind of catalytic combustion method gas sensor according to claim 1, it is characterised in that: the spherical porous body
(3) outer side covering has precious metal catalyst layer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820941951.2U CN208420778U (en) | 2018-06-19 | 2018-06-19 | A kind of catalytic combustion method gas sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820941951.2U CN208420778U (en) | 2018-06-19 | 2018-06-19 | A kind of catalytic combustion method gas sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208420778U true CN208420778U (en) | 2019-01-22 |
Family
ID=65108996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820941951.2U Active CN208420778U (en) | 2018-06-19 | 2018-06-19 | A kind of catalytic combustion method gas sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208420778U (en) |
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2018
- 2018-06-19 CN CN201820941951.2U patent/CN208420778U/en active Active
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