CN210119460U - Protection particle device of zirconia sensor - Google Patents
Protection particle device of zirconia sensor Download PDFInfo
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- CN210119460U CN210119460U CN201920788016.1U CN201920788016U CN210119460U CN 210119460 U CN210119460 U CN 210119460U CN 201920788016 U CN201920788016 U CN 201920788016U CN 210119460 U CN210119460 U CN 210119460U
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Abstract
The utility model relates to a protective particle device of zirconia sensor, including the filter seat, the one end of filter seat is connected with ceramic filter, the other end of filter seat is connected with the outer tube through the sensor seat, the inside sensor pipe that is connected with the sensor seat that is equipped with of outer tube, be equipped with the heater between outer tube and the sensor pipe, the one end of sensor pipe keeping away from the sensor seat is equipped with the zirconia sensor, be connected with the electrode lead wire on the zirconia sensing, the sensor intraduct is equipped with porous active ceramic grained layer, the both ends on porous active ceramic grained layer are equipped with the leakage prevention net respectively. The utility model has the advantages that: the ceramic filter and the porous active ceramic particles can prevent smoke particles from reaching the detection surface of the zirconia sensor, so that the ash layer condition is avoided, the service cycle is prolonged, and the porous active ceramic particles are positioned in the heater and can stabilize the output of detection signals on the electrode lead of the zirconia sensor.
Description
Technical Field
The utility model relates to a combustion apparatus field particularly, relates to a protective particle device of zirconia sensor.
Background
At present, porous active ceramic particles are arranged on the smoke sensing side of a zirconia sensor sold in the market, and the problem that a ceramic filter can only prevent smoke particles above the micron level, the nano-level smoke particles can reach the detection surface of the zirconia sensor through a through hole of the ceramic filter, and the detection precision is influenced because an ash layer appears on the surface of the zirconia sensor after long-term use is solved. Secondly, there is a problem that in order to maintain the activity of the zirconia sensor, the zirconia sensor must be arranged in a high-temperature environment, and some of the various measured flue gases contain a small amount of organic waste gas and carbon monoxide gas due to different processes, and when the measured flue gases reach the detection surface of the zirconia sensor, the organic waste gas and the carbon monoxide gas chemically react with a small amount of oxygen molecule gas in the flue gases on the detection surface of the zirconia sensor, so that the zirconia sensor has errors in detecting the oxygen content in the flue gases.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
To the above technical problem in the related art, the present invention provides a protective particle device for a zirconia sensor, which overcomes the above disadvantages of the existing products.
The utility model aims at realizing through the following technical scheme:
the utility model provides a protection granule device of zirconia sensor, includes the filter seat, the one end of filter seat is connected with ceramic filter, the other end of filter seat is connected with the outer tube through the sensor seat, the outer tube is inside be equipped with the sensor pipe that the sensor seat is connected, the outer tube with be equipped with the heater between the sensor pipe, the sensor pipe is being kept away from the one end of sensor seat is equipped with the zirconia sensor, be connected with the electrode lead on the zirconia sensor, the sensor intraduct is equipped with porous active ceramic grained layer, the both ends on porous active ceramic grained layer are equipped with the leak protection net respectively.
Furthermore, the ceramic filter is internally buckled and fixed on the filter base in a bonding mode, the internal thread of the filter base is connected with the external thread of the sensor base in a threaded mode, and the filter base is connected with the outer pipe through screws.
Further, the filling thickness of the porous active ceramic particle layer is 1.5 cm.
Furthermore, the leakage-proof net is welded on the inner wall of the sensor pipe, and the distance between the leakage-proof net and the zirconia sensor, which is close to one side of the zirconia sensor, is 1 cm.
The utility model has the advantages that: the ceramic filter can prevent smoke particles above the micron level, the porous active ceramic particles can prevent the nano-level smoke particles from reaching the detection surface of the zirconia sensor, and the ash layer condition on the surface of the zirconia sensor can be avoided in the long-term use process, so that the service cycle of the zirconia sensor is prolonged under the condition of ensuring the detection precision.
The porous active ceramic particles are positioned in the heater, and the advantages of quick start and high catalytic conversion efficiency of the porous active ceramic particles are utilized, so that the organic waste gas and the carbon monoxide gas are quickly converted into the carbon dioxide gas and the water, the combustion of the organic waste gas and the carbon monoxide gas on the detection surface of the zirconia sensor is avoided, and the output of a detection signal on an upper electrode lead of the zirconia sensor is stabilized.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a particle protection device for a zirconia sensor according to an embodiment of the present invention.
In the figure: 1. a ceramic filter; 2. a filter base; 3. a sensor seat; 4. a sensor tube; 5. a porous active ceramic particle layer; 6. a leakage-proof net; 7. a zirconium oxide sensor; 8. a heater; 9. an outer tube; 10. and an electrode lead.
Detailed Description
As shown in fig. 1, the utility model provides a protection granule device of zirconia sensor, including filter seat 2, the one end of filter seat 2 is connected with ceramic filter 1, the other end of filter seat 2 is connected with outer tube 9 through sensor seat 3, the outer tube 9 is inside be equipped with the sensor pipe 4 that sensor seat 3 is connected, outer tube 9 with be equipped with heater 8 between the sensor pipe 4, sensor pipe 4 is keeping away from the one end of sensor seat 3 is equipped with zirconia sensor 7, be connected with electrode lead 10 on the zirconia sensor, the inside porous active ceramic grained layer 5 that is equipped with of sensor pipe 4, the both ends of porous active ceramic grained layer 5 are equipped with leak protection net 6 respectively.
Further, the ceramic filter 1 is fixed to the filter base 2 in an adhesive manner, the internal thread of the filter base 2 is connected to the external thread of the sensor base 3 in a threaded manner, and the filter base 2 is connected to the outer tube 9 by screws.
Further, the filling thickness of the porous active ceramic particle layer 5 is 1.5 cm.
Further, the anti-leakage net 6 is welded on the inner wall of the sensor tube 4, and the distance between the anti-leakage net 6 and the zirconia sensor 7 is 1 cm, wherein the anti-leakage net is close to one side of the zirconia sensor 7.
When in specific use, according to the utility model, when the flue gas flow passes through near the ceramic filter 1, the smoke particles mixed with the micron-sized particles are blocked by the ceramic filter 1 and continuously flow along with the flue gas flow, the nano-scale smoke particles and the flue gas to be detected pass through the via hole of the ceramic filter 1 together, and are diffused into the ceramic filter 1 and continuously diffused towards the direction of the zirconia sensor 7, when the porous active ceramic particles are filled, the nano-scale smoke particles are blocked by the porous active ceramic particles and can not reach the detection surface of the zirconia sensor 7, meanwhile, the porous active ceramic particles are heated by the heater 8 at high temperature, thereby fully playing the advantages of fast onset and high catalytic conversion efficiency of the porous active ceramic particles, avoiding the organic waste gas and carbon monoxide gas mixed in the flue gas from burning on the detection surface of the zirconia sensor 7, thereby stabilizing the signal output of the electrode lead 10 on the zirconia sensor 7.
The porous active ceramic particles 5 are filled between two layers of leakage-proof nets 6 made of the same stainless steel materials in the sensor tube 4, the filling thickness is 1.5 cm, the two layers of leakage-proof nets 6 are welded on the inner wall of the sensor tube 4 in an electric resistance welding mode, and the distance between the leakage-proof net 6 close to the zirconia sensor 7 and the zirconia sensor 7 is 1 cm.
To sum up, with the aid of the above technical scheme of the utility model, ceramic filter can prevent the smoke and dust granule more than the micron order, and porous active ceramic granule can prevent nanometer smoke and dust granule to arrive zirconia sensor's detection surface, can avoid the zirconia sensor surface to appear the ash bed condition in the long-term use, makes the zirconia sensor life cycle extension under the condition of guaranteeing to detect the precision.
The porous active ceramic particles are positioned in the heater, and the advantages of fast ignition and high catalytic conversion efficiency of the porous active ceramic particles are utilized, so that the organic waste gas and the carbon monoxide gas are quickly ignited and converted into carbon dioxide gas and water, the organic waste gas and the carbon monoxide gas are prevented from being combusted on the detection surface of the zirconia sensor, and the detection signal output on the upper electrode lead of the zirconia sensor is stabilized.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.
Claims (4)
1. A particle-protecting device of a zirconia sensor comprises a filter base (2), and is characterized in that, one end of the filter base (2) is connected with the ceramic filter (1), the other end of the filter base (2) is connected with the outer tube (9) through the sensor base (3), a sensor tube (4) connected with the sensor seat (3) is arranged in the outer tube (9), a heater (8) is arranged between the outer tube (9) and the sensor tube (4), a zirconium oxide sensor (7) is arranged at one end of the sensor tube (4) far away from the sensor base (3), the zirconia sensor is connected with an electrode lead (10), a porous active ceramic particle layer (5) is arranged in the sensor tube (4), and two ends of the porous active ceramic particle layer (5) are respectively provided with a leakage-proof net (6).
2. The particle-shielding device for a zirconia sensor according to claim 1, wherein: the ceramic filter (1) is fixed on the filter base (2) in a bonding mode in a buckling mode, the internal thread of the filter base (2) is connected with the external thread of the sensor base (3) in a threaded mode, and the filter base (2) is connected with the outer pipe (9) through screws.
3. The particle-shielding device for a zirconia sensor according to claim 1, wherein: the filling thickness of the porous active ceramic particle layer (5) is 1.5 cm.
4. The particle-shielding device for a zirconia sensor according to claim 1, wherein: the anti-leakage net (6) is welded on the inner wall of the sensor tube (4), and the distance between the anti-leakage net (6) close to one side of the zirconia sensor (7) and the zirconia sensor (7) is 1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920788016.1U CN210119460U (en) | 2019-05-29 | 2019-05-29 | Protection particle device of zirconia sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920788016.1U CN210119460U (en) | 2019-05-29 | 2019-05-29 | Protection particle device of zirconia sensor |
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| Publication Number | Publication Date |
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| CN210119460U true CN210119460U (en) | 2020-02-28 |
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| CN201920788016.1U Active CN210119460U (en) | 2019-05-29 | 2019-05-29 | Protection particle device of zirconia sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146548A (en) * | 2019-05-29 | 2019-08-20 | 武汉深投朗弘科技有限公司 | A kind of protection particle device of zirconia sensor |
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2019
- 2019-05-29 CN CN201920788016.1U patent/CN210119460U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146548A (en) * | 2019-05-29 | 2019-08-20 | 武汉深投朗弘科技有限公司 | A kind of protection particle device of zirconia sensor |
| CN110146548B (en) * | 2019-05-29 | 2024-04-30 | 武汉深投朗弘科技有限公司 | Protective particle device of zirconia sensor |
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