CN108760865B - Oxygen probe sensor - Google Patents
Oxygen probe sensor Download PDFInfo
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- CN108760865B CN108760865B CN201810781408.5A CN201810781408A CN108760865B CN 108760865 B CN108760865 B CN 108760865B CN 201810781408 A CN201810781408 A CN 201810781408A CN 108760865 B CN108760865 B CN 108760865B
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/409—Oxygen concentration cells
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Abstract
The invention discloses an oxygen probe sensor which comprises an outer sleeve, wherein one end of the outer sleeve is fixedly connected with a junction box, a first aviation plug and a second aviation plug are fixedly installed on the outer wall of the junction box, a box cover is installed on the junction box, a zirconia tube is fixedly installed in the outer sleeve, one end, far away from the junction box, of the zirconia tube is fixedly connected with a zirconia sheet, an inner magnetic tube is installed in the zirconia tube, a heating tube is installed in the outer sleeve, a thermocouple is installed in the zirconia tube, an inner electrode is installed in the zirconia tube, and a reference air inlet hole is formed in the zirconia tube. The oxygen probe is provided with the heating pipe, so that the oxygen probe can stably output signals at the temperature of 450 ℃, and the application range is wider.
Description
Technical Field
The invention relates to the technical field of heat treatment industrial kilns, in particular to an oxygen probe sensor.
Background
In the heat treatment process of various kilns, the temperature and time are generally controlled more, and during the period, the oxygen content and the nitrogen content in the kiln are also well controlled, so that the heat treatment process can be really controlled, and an ideal effect is achieved.
The existing oxygen probe can ensure the output of stable oxygen potential value generally when used at 650-1200 ℃, the application range is not high, in addition, the installation position of the oxygen probe is particularly important, the oxygen probe can not be close to a permeating agent outlet and can not be installed at a dead angle of return air, and the length of the traditional oxygen probe extending into a kiln furnace is fixed and can not be properly adjusted.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an oxygen probe sensor.
The oxygen probe sensor comprises an outer sleeve, wherein one end of the outer sleeve is fixedly connected with a junction box, a first aviation plug and a second aviation plug are fixedly arranged on the outer wall of the junction box, a box cover is arranged on the junction box, a zirconia tube is fixedly arranged in the outer sleeve, one end of the zirconia tube, far away from the junction box, is fixedly connected with a zirconia sheet, an inner magnetic tube is arranged in the zirconia tube, a heating tube is arranged in the outer sleeve, a thermocouple is arranged in the zirconia tube, an inner electrode is arranged in the zirconia tube, a reference air through hole is formed in the zirconia tube, the outer wall of the outer sleeve is connected with an installation tube in a sliding mode, a fixing frame is fixedly connected to the outer wall of one side of the installation tube, two first circular through holes are formed in the outer walls of the two sides of the fixing frame, and a sliding rod is connected, one end of each of two corresponding sliding rods, which is positioned at the inner side of the fixed frame, is fixedly connected with the same first fixed block, a first spring is sleeved on each sliding rod, two ends of each first spring are respectively and fixedly connected to the outer wall of the first fixed block and the inner wall of the fixed frame, a second fixed block is fixedly connected to the outer wall of one side, which is far away from each other, of the two first fixed blocks, threaded holes are respectively formed between the two corresponding first circular through holes on the outer walls of the two sides of the fixed frame, threaded rods are respectively in threaded connection with the two threaded holes, second circular grooves are formed in the threaded rods, threaded columns are in threaded connection with the inner walls of the second circular grooves, pushing rods are fixedly connected to the outer walls of one sides of the threaded columns, limiting plates are fixedly connected to the inner walls of the second circular grooves, the pushing rods penetrate through the, two square through holes all communicate with the circular recess of second, and the equal sliding connection in inner wall of two square through holes has the fixture block, equal fixedly connected with fixed plate on the both sides outer wall of fixture block, two third circular recesses have all been seted up to the both sides that lie in two square through holes on the inner wall of the circular recess of second, keep away from the one end of equal fixedly connected with second spring on one side inner wall of corresponding fixed plate in four third circular recesses, the other end and the corresponding fixed plate fixed connection of second spring.
Preferably, two sliding strips are symmetrically and fixedly connected to the outer wall of the outer sleeve, two first sliding grooves are symmetrically and fixedly connected to the inner wall of the installation pipe, the two sliding strips are in sliding connection with the corresponding first sliding grooves, and threads are formed in the outer wall of the installation pipe.
Preferably, the knob is fixedly sleeved at one end, away from each other, of each of the two threaded rods.
Preferably, a second circular through hole is formed in the limiting plate, and the pushing rod penetrates through the second circular through hole and is movably connected with the second circular through hole.
Preferably, two second chutes are symmetrically formed in the inner wall of the first circular through hole, two sliding blocks are symmetrically and fixedly connected to the outer wall of the sliding rod, and the two sliding blocks are slidably connected with the corresponding second chutes.
Preferably, first circular recess has all been seted up in two second fixed blocks, has all seted up the ring channel on the inner wall of two first circular recesses.
Preferably, the inner walls of the two annular grooves are fixedly provided with the anti-skid pads.
Preferably, the fixture block is of a trapezoidal structure, and one end, far away from the threaded column, of the push rod is matched with the fixture block.
Preferably, the outer wall of one side that two first fixed blocks are close to each other all is seted up with the outer tube to the arc groove of adaptation.
Compared with the prior art, the invention has the beneficial effects that:
the oxygen content in carburizing atmosphere in the furnace is measured by utilizing the solid dielectric zirconia tube and the zirconia sheet through the matching of the outer sleeve, the mounting tube, the fixing frame, the first aviation plug, the junction box, the second aviation plug, the box cover, the zirconia tube, the inner magnetic tube, the reference air inlet hole, the thermocouple, the inner electrode, the heating tube and the zirconia sheet, and compared with the oxygen content of standard gas outside the furnace, an oxygen potential is generated on two sides of the zirconia sheet and is transmitted to the detecting and controlling instrument, the heating tube is specially added in the outer sleeve, when the temperature is 450 ℃, the oxygen potential value can be stably output, and the application range is wider;
the oxygen probe is installed by matching the outer sleeve, the installation tube, the fixing frame, the threaded column, the sliding rod, the threaded rod, the first fixing block, the first spring, the second fixing block, the first circular groove, the annular groove, the threaded hole, the first circular through hole, the limiting plate, the second circular groove, the pushing rod, the square through hole, the clamping block, the third circular groove, the second spring and the fixing plate, when the oxygen probe is installed, the installation tube is fixed on the furnace cover through the threads on the outer wall of the installation tube, then the outer sleeve of the oxygen probe penetrates through the fixing frame, the sliding strip on the outer sleeve is pushed into the furnace by aligning the first sliding groove on the installation tube, after the length of the outer sleeve extending into the furnace is determined, the two first fixing blocks can clamp the outer sleeve tightly through the threaded rod, the pushing rod pushes the clamping block to be clamped into the annular groove in the second fixing block by screwing the threaded column, the situation that the threaded rod is loosened due to vibration inside the kiln is avoided;
the oxygen probe is provided with the heating pipe, so that the oxygen probe can stably output signals at the temperature of 450 ℃, and the application range is wider.
Drawings
FIG. 1 is a front view of an outer sleeve of an oxygen probe sensor according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of the oxygen probe sensor according to the present invention;
FIG. 3 is a side view of a fixing frame of an oxygen probe sensor according to the present invention;
FIG. 4 is an enlarged view of the fixing frame of the oxygen probe sensor according to the present invention at the position A;
fig. 5 is a schematic view of the internal structure of the threaded rod of the oxygen probe sensor according to the present invention.
Fig. 6 is an enlarged view of the inside of the threaded rod of the oxygen probe sensor according to the present invention at B.
In the figure: 1. an outer sleeve; 2. installing a pipe; 3. a fixing frame; 4. a first aviation plug; 5. a junction box; 6. a second aviation plug; 7. a box cover; 8. a threaded post; 9. a slide rod; 10. a threaded rod; 11. a zirconia tube; 12. an inner magnetic tube; 13. a reference air access hole; 14. a thermocouple; 15. an inner electrode; 16. heating a tube; 17. a zirconia sheet; 18. a first fixed block; 19. a first spring; 20. a second fixed block; 21. a first circular groove; 22. an annular groove; 23. a threaded hole; 24. a first circular through hole; 25. a limiting plate; 26. a second circular groove; 27. a push rod; 28. a square through hole; 29. a clamping block; 30. a third circular groove; 31. a second spring; 32. and (7) fixing the plate.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Examples
Referring to fig. 1 to 6, the oxygen probe sensor proposed in this embodiment includes an outer sleeve 1, a terminal box 5 fixedly connected to one end of the outer sleeve 1, a first aviation plug 4 and a second aviation plug 6 fixedly installed on the outer wall of the terminal box 5, a box cover 7 installed on the terminal box 5, a zirconia tube 11 fixedly installed in the outer sleeve 1, a zirconia sheet 17 fixedly connected to one end of the zirconia tube 11 far from the terminal box 5, an inner magnetic tube 12 installed in the zirconia tube 11, a heating tube 16 installed in the outer sleeve 1, a thermocouple 14 installed in the zirconia tube 11, an inner electrode 15 installed in the zirconia tube 11, a reference air inlet hole 13 opened in the zirconia tube 11, a mounting tube 2 slidably connected to the outer wall of the outer sleeve 1, a fixed frame 3 fixedly connected to the outer wall of one side of the mounting tube 2, two first circular through holes 24 opened on the outer walls of both sides of the fixed frame 3, sliding rods 9 are respectively connected in the two first circular through holes 24 in a sliding manner, one end of each corresponding sliding rod 9, which is positioned at the inner side of the fixed frame 3, is fixedly connected with the same first fixed block 18, a first spring 19 is sleeved on each sliding rod 9, two ends of each first spring 19 are respectively and fixedly connected with the outer wall of each first fixed block 18 and the inner wall of the fixed frame 3, the outer wall of one side, which is far away from each other, of each first fixed block 18 is fixedly connected with a second fixed block 20, threaded holes 23 are respectively formed in the outer walls of two sides of the fixed frame 3, which are positioned between the two corresponding first circular through holes 24, threaded rods 10 are respectively in threaded connection with the two threaded holes 23, second circular grooves 26 are formed in the threaded rods 10, threaded columns 8 are in threaded connection with the inner walls of the second circular grooves 26, a pushing rod 27 is fixedly connected with the, the pushing rod 27 penetrates through the limiting plate 25 and is movably connected with the limiting plate 25, two square through holes 28 are symmetrically formed in the outer wall of the threaded rod 10, the two square through holes 28 are communicated with the second circular groove 26, the inner walls of the two square through holes 28 are connected with clamping blocks 29 in a sliding mode, fixing plates 32 are fixedly connected to the outer walls of the two sides of each clamping block 29, two third circular grooves 30 are formed in the inner wall of each second circular groove 26 and located on the two sides of the two square through holes 28, one end of a second spring 31 is fixedly connected to the inner wall of one side, far away from the corresponding fixing plate 32, in each third circular groove 30, and the other end of each second spring 31 is fixedly connected with the corresponding fixing plate 32;
two sliding strips are symmetrically and fixedly connected to the outer wall of the outer sleeve 1, two first sliding grooves are symmetrically and fixedly connected to the inner wall of the mounting tube 2, the two sliding strips are both in sliding connection with the corresponding first sliding grooves, threads are formed on the outer wall of the mounting tube 2, a knob is fixedly sleeved at one end, away from each other, of each of the two threaded rods 10, a second circular through hole is formed in the limiting plate 25, the pushing rod 27 penetrates through the second circular through hole and is movably connected with the second circular through hole, two second sliding grooves are symmetrically formed in the inner wall of the first circular through hole 24, two sliding blocks are symmetrically and fixedly connected to the outer wall of the sliding rod 9, the two sliding blocks are in sliding connection with the corresponding second sliding grooves, first circular grooves 21 are formed in the two second fixing blocks 20, annular grooves 22 are formed in the inner walls of the two first circular grooves 21, and anti-skid pads are fixedly, the fixture block 29 is a trapezoid structure, one end of the push rod 27 far away from the threaded column 8 is matched with the fixture block 29, the outer walls of the two first fixing blocks 18 close to each other are provided with arc grooves matched with the outer sleeve 1 in the direction of the outer sleeve, through the matching of an outer sleeve 1, an installation pipe 2, a fixing frame 3, a first aviation plug 4, a junction box 5, a second aviation plug 6, a box cover 7, a zirconia pipe 11, an inner magnet pipe 12, a reference air access hole 13, a thermocouple 14, an inner electrode 15, a heating pipe 16 and a zirconia sheet 17, the oxygen content in the carburizing atmosphere in a furnace is measured by utilizing the solid dielectric zirconia pipe 11 and the zirconia sheet 17 and is compared with the oxygen content of a standard gas outside the furnace, an oxygen potential is generated on two sides of the zirconia sheet 17 and transmitted to a detecting and controlling instrument, a heating pipe 16 is specially added in the outer sleeve 1, when the temperature is 450 ℃, the oxygen potential value can be stably output, and the application range is wider; the oxygen probe is installed by matching an outer sleeve 1, an installation pipe 2, a fixed frame 3, a threaded column 8, a sliding rod 9, a threaded rod 10, a first fixed block 18, a first spring 19, a second fixed block 20, a first circular groove 21, an annular groove 22, a threaded hole 23, a first circular through hole 24, a limiting plate 25, a second circular groove 26, a pushing rod 27, a square through hole 28, a clamping block 29, a third circular groove 30, a second spring 31 and a fixed plate 32, firstly fixing the installation pipe 2 on a furnace cover through threads on the outer wall of the installation pipe, then penetrating the outer sleeve 1 of the oxygen probe through the fixed frame 3, aligning a sliding strip on the outer sleeve 1 with a first sliding groove on the installation pipe 2 and pushing the sliding strip into the furnace, determining the length of the outer sleeve 1 to be stretched into the furnace, clamping the outer sleeve 1 by the threaded rod 10, and pushing the pushing rod 27 to push the clamping block 29 into the annular groove 22 in the second fixed block 20 by screwing the threaded column 8, the threaded rod 10 is further limited, the situation that the threaded rod 10 is loosened due to vibration inside the kiln is avoided, the oxygen probe is provided with the heating pipe 16, the oxygen probe can stably output signals at the temperature of 450 ℃, the application range is wider, in addition, the oxygen probe is fixed by the mounting pipe 2 and the fixing frame 3, the length of the oxygen probe extending into the kiln can be adjusted, the operation is simple, and the use is convenient.
The working principle is as follows: the invention utilizes solid dielectric zirconia tube 11 and zirconia sheet 17 to measure the oxygen content in the carburizing atmosphere in the furnace, compares with the oxygen content of the standard gas outside the furnace, generates an oxygen potential on both sides of the zirconia sheet 17, transmits to the detecting and controlling instrument, controls the carbon potential in the heat treatment controllable atmosphere, the working temperature of the traditional oxygen probe is generally 650-1200 ℃, the rated lower limit working temperature is 650 ℃, this means that the probe can be used only above this temperature, the oxygen potential value of the reaction is correct linearity, this is determined by the zirconia dielectric property, in the invention, a heating tube 16 is specially added in the outer sleeve 1, the temperature is 450 ℃, the oxygen potential value can be stably output, the application range is wider, when installing the oxygen probe, the installing tube 2 is fixed on the furnace cover through the screw thread on the outer wall, then the outer sleeve 1 of the oxygen probe passes through the fixing frame 3, the sliding strips on the outer sleeve 1 are aligned with the first sliding grooves on the mounting tube 2 and pushed into the kiln, the length of the outer sleeve 1 extending into the kiln can be adjusted according to actual needs, after the mounting length is determined, the knobs on the two threaded rods 10 are screwed clockwise, the threaded rods 10 rotate clockwise in the threaded holes 23 and move towards the direction of the outer sleeve 1, one end of the threaded rods 10 gradually moves into the first circular groove 21 in the second fixing block 20 along with the rotation, then the threaded rods 10 push the second fixing block 20 to move towards the direction of the outer sleeve 1, the second fixing block 20 drives the first fixing block 18 to move, when the first fixing block 18 moves towards the outer sleeve 1, the two sliding rods 9 on the first fixing block 18 are driven to move, the first spring 19 is stretched, elastic potential energy is stored, after the arc grooves of the two first fixing blocks 18 are tightly attached to the outer wall of the outer sleeve 1, the fixing work of the outer sleeve 1 is completed, then the screw column 8 is driven by a screwdriver clockwise to rotate in the second circular groove 26 in the threaded rod 10, the screw column 8 moves towards the outer sleeve 1 while rotating, the screw column 8 drives the push rod 27 to move, the conical head of the push rod 27 is in contact with the two clamping blocks 29, the two clamping blocks 29 are pushed to slide in the corresponding square through holes 28 through the inclined surfaces on the two clamping blocks 29, the two clamping blocks 29 are clamped in the annular groove 22 in the second fixing block 20 along with the push of the push rod 27, the annular groove 22 is internally provided with the anti-slip pad, after the clamping blocks 29 are tightly attached with the anti-slip pad, the threaded rod 10 is reliably limited, and the situation that the threaded rod 10 is loosened due to vibration inside the kiln is avoided, the oxygen probe is provided with the heating pipe 16, so that the oxygen probe can stably output signals at the temperature of 450 ℃, and the application range, in addition, the oxygen probe is fixed by the installation tube 2 and the fixing frame 3, so that the length of the oxygen probe extending into the kiln can be adjusted, and the oxygen probe fixing device is simple to operate and convenient to use.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The oxygen probe sensor comprises an outer sleeve (1) and is characterized in that one end of the outer sleeve (1) is fixedly connected with a junction box (5), a first aviation plug (4) and a second aviation plug (6) are fixedly installed on the outer wall of the junction box (5), a box cover (7) is installed on the junction box (5), a zirconia tube (11) is fixedly installed in the outer sleeve (1), one end, far away from the junction box (5), of the zirconia tube (11) is fixedly connected with a zirconia sheet (17), an inner magnetic tube (12) is installed in the zirconia tube (11), a heating tube (16) is installed in the outer sleeve (1), a thermocouple (14) is installed in the zirconia tube (11), an inner electrode (15) is installed in the zirconia tube (11), and a reference air through hole (13) is formed in the zirconia tube (11), the outer wall sliding connection of outer tube (1) has installation pipe (2), fixed frame (3) of fixedly connected with on one side outer wall of installation pipe (2), all seted up two first circular through-holes (24) on the both sides outer wall of fixed frame (3), equal sliding connection has litter (9) in two first circular through-holes (24), and two corresponding litter (9) are located the same first fixed block (18) of one end fixedly connected with of fixed frame (3) inboard, the cover is equipped with first spring (19) on litter (9), the both ends of first spring (19) are respectively fixedly connected with on the inner wall of first fixed block (18) outer wall and fixed frame (3), and equal fixedly connected with second fixed block (20) on the one side outer wall that two first fixed blocks (18) kept away from each other, lie in on the fixed frame (3) both sides outer wall and all seted up screw hole (23) between two corresponding first circular through-holes (24), equal threaded connection in two screw holes (23) has threaded rod (10), the circular recess of second (26) has been seted up in the threaded rod, the inner wall threaded connection of the circular recess of second (26) has screw thread post (8), one side outer wall fixedly connected with pushing ram (27) of screw thread post (8), the inner wall fixedly connected with limiting plate (25) of the circular recess of second (26), pushing ram (27) run through limiting plate (25) and with limiting plate (25) swing joint, two square through hole (28) have been seted up to the symmetry on the outer wall of threaded rod (10), two square through hole (28) all communicate with the circular recess of second (26), the equal sliding connection in inner wall of two square through hole (28) has fixture block (29), equal fixedly connected with fixed plate (32) on the both sides outer wall of fixture block (29), two third circular recess (30) have all been seted up to the both sides that lie in two square through hole (28) on the inner wall of the circular recess of second (26) The one end of equal fixedly connected with second spring (31) on keeping away from one side inner wall of corresponding fixed plate (32) in four third circular recess (30), first circular recess (21) have all been seted up in two second fixed block (20) to the other end and corresponding fixed plate (32) fixed connection of second spring (31), have all seted up ring channel (22) on the inner wall of two first circular recesses (21).
2. The oxygen probe sensor according to claim 1, wherein two sliding bars are symmetrically and fixedly connected to the outer wall of the outer sleeve (1), two first sliding grooves are symmetrically and fixedly connected to the inner wall of the mounting tube (2), both sliding bars are slidably connected to the corresponding first sliding grooves, and the outer wall of the mounting tube (2) is threaded.
3. The oxygen probe sensor as claimed in claim 1, wherein the two threaded rods (10) are each fixedly sleeved with a knob at the end remote from each other.
4. The oxygen probe sensor according to claim 1, wherein a second circular through hole is formed in the limiting plate (25), and the pushing rod (27) penetrates through the second circular through hole and is movably connected with the second circular through hole.
5. The oxygen probe sensor according to claim 1, wherein the inner wall of the first circular through hole (24) is symmetrically provided with two second sliding grooves, the outer wall of the sliding rod (9) is symmetrically and fixedly connected with two sliding blocks, and the two sliding blocks are slidably connected with the corresponding second sliding grooves.
6. The oxygen probe sensor according to claim 1, wherein a non-slip mat is fixedly mounted on the inner wall of both annular grooves (22).
7. The oxygen probe sensor as claimed in claim 1, wherein the fixture block (29) is of a trapezoidal structure, and the end of the push rod (27) away from the threaded post (8) is adapted to the fixture block (29).
8. The oxygen probe sensor as claimed in claim 1, wherein the outer wall of the two first fixing blocks (18) on the side close to each other is provided with an arc groove adapted to the direction of the outer sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781408.5A CN108760865B (en) | 2018-07-17 | 2018-07-17 | Oxygen probe sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781408.5A CN108760865B (en) | 2018-07-17 | 2018-07-17 | Oxygen probe sensor |
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| Publication Number | Publication Date |
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| CN108760865A CN108760865A (en) | 2018-11-06 |
| CN108760865B true CN108760865B (en) | 2020-04-21 |
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| CN201810781408.5A Active CN108760865B (en) | 2018-07-17 | 2018-07-17 | Oxygen probe sensor |
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| CN113281391A (en) * | 2021-04-09 | 2021-08-20 | 江元(天长)科技股份有限公司 | Oxygen probe mechanism and detection device of garbage incinerator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3118447C2 (en) * | 1981-05-09 | 1983-02-24 | Process-Electronic Analyse- Und Regelgeraete Gmbh, 7321 Wangen | Oxygen measuring probe, especially for measuring the oxygen content of a carbon-containing atmosphere |
| CA2164438C (en) * | 1993-06-04 | 2002-09-03 | Philip D. Pacey | Gas detection, identification and elemental and quantitative analysis system |
| JP2001305097A (en) * | 2000-04-24 | 2001-10-31 | Ngk Spark Plug Co Ltd | Gas sensor |
| JP4172279B2 (en) * | 2002-04-03 | 2008-10-29 | 株式会社デンソー | Gas sensor |
| CN201014984Y (en) * | 2006-12-20 | 2008-01-30 | 天津市美铭科技有限公司 | Novel oxygen sensor |
| CN203337602U (en) * | 2013-07-18 | 2013-12-11 | 北京富安时科技有限公司 | Oxygen probe |
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