CN201289405Y - Special-purpose thermoelectric couple for measurement of degradation and coking resistance of pyrolysis furnace COT - Google Patents
Special-purpose thermoelectric couple for measurement of degradation and coking resistance of pyrolysis furnace COT Download PDFInfo
- Publication number
- CN201289405Y CN201289405Y CNU200920006936XU CN200920006936U CN201289405Y CN 201289405 Y CN201289405 Y CN 201289405Y CN U200920006936X U CNU200920006936X U CN U200920006936XU CN 200920006936 U CN200920006936 U CN 200920006936U CN 201289405 Y CN201289405 Y CN 201289405Y
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- coking
- temperature measuring
- measuring head
- pyrolysis furnace
- antiscour
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Abstract
The utility model relates to a special anti-scour and the anti-coking thermocouple for measuring a cracking furnace COT, in particular to an instrument for measuring the temperature of an outlet of the cracking furnace. The utility model aims to accurately and quickly measure the temperature of the outlet of the cracking furnace and simultaneously protect a temperature measuring head from being impacted directly, thereby improving the performances of anti-scour, anti-coking, anti-internal leakage, anti-shock and the like of the whole instrument, and prolonging the service life of the instrument. The special anti-scour and the anti-coking thermocouple comprises a junction box, an upper protection tube, an anti-internal leakage device, a flange interface part, a connection flange, a lower protection eccentric tube and a measuring end, which are connected in sequence from top to bottom; one end of the armored thermocouple is fixedly connected in the junction box, and the other end thereof is inserted into the measuring end; a heat insulation supporting tube is mounted on the outer side of the armored thermocouple; a heat insulation layer is arranged between the heat insulation supporting tube and the protection tube; the measuring end comprises a temperature measuring head and a protective body; the armored thermocouple is accommodated in the temperature measuring head; the protective body is arranged on one side of the temperature measuring head and has a main protection surface which forms an angle Alpha with a horizontal plane; and the width and the height of the main protection surface are slightly greater than those of the temperature measuring head.
Description
Technical field
The utility model relates to a kind of temperature measuring equipment, particularly relates to a kind of thermopair with antiscour anti-coking characteristic that is used to measure pyrolysis furnace COT (outlet temperature).
Background technology
The measurement of pyrolysis furnace outlet temperature, the temperature element thermopair is required should the rapid reaction electromotive force, can accurately measure again, because measuring junction will place in the boiler tube of flow at high speed medium, therefore the wearing quality to measuring junction also has very high requirement.At present, existing temperature thermocouple generally is that the thickness that increases protection tube improves anti-wear performance, but the thickening of sleeve pipe also can cause the thermocouple temperature measurement velocity lag, and sensitivity and accuracy reduce, though, make the error of measurement become big so increase the purpose that casing thickness can reach antiscour.
The utility model content
The technical problems to be solved in the utility model provides a kind of simple in structure, and anti-wear performance is good, and thermometric is accurate, has the measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couple of anti-interior leakage and shockproof function.
The utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple; comprise terminal box; last protection tube; armoured thermocouple; joint flange; under protect eccentric pipe and measuring junction; the lower end of wherein said terminal box is connected with the upper end of last protection tube; fixedly connected with joint flange by flange-interface spare in described lower end of going up protection tube; fixedly connected with protecting eccentric pipe down in the bottom of described joint flange; protect the lower end of eccentric pipe to fixedly connected down with measuring junction; one end of described armoured thermocouple is fixedly connected in the terminal box; the other end passes protection tube and protects eccentric pipe to be inserted in the measuring junction down; anti-interior neglected loading also is housed between wherein said upward protection tube and the flange-interface spare puts; heat insulation support column also is equipped with in the outside of described armoured thermocouple; described heat insulation support column upper end is fixed in the joint flange; the lower end is passed down and is protected eccentric pipe to fixedly connected with measuring junction; be provided with thermofin in the space between heat insulation support column lateral wall and the following protection eccentric pipe madial wall; described measuring junction comprises temperature measuring head and protection body; accommodate armoured thermocouple in the described temperature measuring head; described protection body is arranged on a side of temperature measuring head; it has an anti-mask of master that becomes the α angle with surface level; described master prevents the width of mask and highly is slightly larger than temperature measuring head that main anti-mask is provided with the wearing layer of antiscour anti-coking.
The utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple, and the plane that the anti-mask of wherein said master is a plurality of continuous constitutes.
The utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple, and wherein said temperature measuring head and protection body are split type, and the through hole that temperature measuring head passes on the measuring junction is fixedlyed connected with measuring junction.
The utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple, and wherein said temperature measuring head and protection body are monoblock type, and a side and the protection body of temperature measuring head are made one.
The utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple; wherein said anti-interior neglected loading is put and is comprised coupling bolt; leak bolt and a pair of anti-interior cutting ferrule that leaks in anti-; the described anti-interior outside surface that leaks cutting ferrule is taper; fixedly connected with the lower end of last protection tube in the upper end of described coupling bolt; the lower end of coupling bolt with anti-in leak bolt and be connected and stretch in the opening that leaks in anti-on the bolt; the place, lower surface of coupling bolt is provided with the anti-interior cutting ferrule that leaks; described anti-interior upper surface of leaking cutting ferrule contacts with the lower surface of coupling bolt; the inside surface that leaks cutting ferrule in anti-contacts with the intimate of armoured thermocouple; the outside surface that leaks cutting ferrule in anti-closely contacts with the anti-interior bolt that leaks; described anti-interior lower end of leaking bolt is connected with flange-interface spare and extend in the opening of flange-interface spare upper end; cutting ferrule is leaked in being provided with and preventing in the place, lower surface of leaking bolt in anti-; described anti-interior upper surface of leaking cutting ferrule contacts with anti-interior lower surface of leaking bolt; the inside surface that leaks cutting ferrule in anti-contacts with the intimate of armoured thermocouple, and the anti-interior outside surface that leaks cutting ferrule closely contacts with flange-interface spare.
The utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple, and the junction of wherein said protection eccentric pipe down and measuring junction also is set with the heatproof inorganic, ceramic layer.
The utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple, and articulation also is equipped with at the wherein said protection tube middle part of going up, and described articulation will be gone up protection tube and is divided into two sections.
The utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple, and the material of wherein said wearing layer is the S112 cobalt-base alloys, and wearing layer thickness is more than or equal to 2 millimeters.
The utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple, and the material of wherein said temperature measuring head and protection body is the XH45M alloy, and the wall thickness of temperature measuring head is 2.5 millimeters.
The utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple, and the material of wherein said thermofin is heat insulation fiber ceramics cotton.
The utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple difference from prior art and is that the measuring junction of the utility model thermopair is provided with protection body, the width of protection body and highly all greater than temperature measuring head, because protection body is arranged on a side of temperature measuring head, therefore can play the effect that protection high temperature and high speed medium directly washes away temperature measuring head, and temperature measuring head directly is in the middle of the medium, has improved thermometric sensitivity and accuracy; Also be provided with heat insulation support column and thermofin between the armoured thermocouple of the utility model thermopair and the following protection eccentric pipe, make heat on the armoured thermocouple be difficult for outwards scattering and disappearing and intercept down the outer heat of protection eccentric pipe armoured thermocouple is produced to disturb, guarantee the accuracy of thermometric; Anti-interior neglected loading is housed between the last protection tube of the utility model thermopair and the flange-interface spare puts; be that the measuring junction wearing and tearing are broken; neglected loading is put also and high-temperature medium can be intercepted below last protection tube in anti-, prevents that high-temperature medium from flowing into terminal box and causing unnecessary damage.
The master that the protection body of the utility model measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couple is designed to be made of the plurality of continuous plane prevents mask, and on main anti-mask wearing layer is set, and all is in order to improve the antiscour anti-coking characteristic of protection body; Measuring junction is designed to the split formula or monoblock type all is for the ease of processing and manufacturing; In the heatproof inorganic, ceramic layer of the junction suit of protecting eccentric pipe and measuring junction down is leakproofness and intensity in order to strengthen the junction, prevents that gas from entering in the protecting tube from the slit of junction, plays the anti-coking effect, improves shock resistance and shake-proof ability; Articulation on the last protection tube is to adjust the direction of the electric outlet of terminal box for convenience and equipment is safeguarded.
Below in conjunction with accompanying drawing measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couple of the present utility model is described further.
Description of drawings
Fig. 1 measures the structural representation of pyrolysis furnace COT antiscour anti-coking special electric thermo-couple for the utility model;
Fig. 2 measures the structural representation that neglected loading is put in the preventing of pyrolysis furnace COT antiscour anti-coking special electric thermo-couple for the utility model;
Fig. 3 a is the front section view that the utility model is measured first kind of embodiment of measuring junction of pyrolysis furnace COT antiscour anti-coking special electric thermo-couple;
Fig. 3 b is the upward view of Fig. 3 a;
Fig. 4 a is the front section view that the utility model is measured second kind of embodiment of measuring junction of pyrolysis furnace COT antiscour anti-coking special electric thermo-couple;
Fig. 4 b is the upward view of Fig. 4 a;
Fig. 5 measures the user mode synoptic diagram of pyrolysis furnace COT antiscour anti-coking special electric thermo-couple for the utility model.
Embodiment
As shown in Figure 1; the utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple and is comprised terminal box 1; last protection tube 2; armoured thermocouple 3; joint flange 4; under protect eccentric pipe 5 and measuring junction 6; wherein the lower end of terminal box 1 is connected with the upper end of last protection tube 2; articulation 18 is equipped with at last protection tube 2 middle parts; articulation 18 will be gone up protection tube 2 and will be divided into two sections; the lower end of last protection tube 2 is put 8 by neglected loading in anti-and is connected with flange-interface spare 7; the bottom of flange-interface spare 7 and joint flange 4 weld together; the bottom of joint flange 4 and protection eccentric pipe 5 welding down; protect the lower end and measuring junction 6 welding of eccentric pipe 5 down; protect the eccentric pipe 5 and the junction of measuring junction 6 also to be set with heatproof inorganic, ceramic layer 17 down; one end of armoured thermocouple 3 is connected in the terminal box 1; the other end passes protection tube 2 and protects eccentric pipe 5 to be inserted in the measuring junction 6 down; the outside of armoured thermocouple 3 also is set with heat insulation support column 9; heat insulation support column 9 upper ends are inserted in the joint flange 4; protection eccentric pipe 5 and measuring junction 6 welding are passed down in the lower end; be provided with thermofin 10 in the space between heat insulation support column 9 lateral walls and following protection eccentric pipe 5 madial walls; the material of thermofin 10 is heat insulation fiber ceramics cotton; measuring junction 6 comprises temperature measuring head 11 and protection body 12; the material of temperature measuring head 11 and protection body 12 is the XH45M alloy; the wall thickness of temperature measuring head 11 is 2.5 millimeters; accommodate armoured thermocouple 3 in the temperature measuring head 11; armoured thermocouple 3 contacts with the inwall of temperature measuring head 11; protection body 12 is arranged on a side of temperature measuring head 11; it has an anti-mask 13 of master that becomes the α angle with surface level; the size at α angle is determined by reality cracking furnace tube and measuring channel angulation to be measured; the master prevents the width of mask 13 and highly is slightly larger than temperature measuring head 11; main anti-mask 13 is provided with the wearing layer 14 of antiscour anti-coking; the material of wearing layer 14 is the S112 cobalt-base alloys, and wearing layer 14 thickness are at least 2 millimeters.
As shown in Figure 2; anti-interior neglected loading is put 8 and is comprised coupling bolt 22; leak bolt 15 and a pair of anti-interior cutting ferrule 16 that leaks in anti-; 16 '; leak cutting ferrule 16 in anti-; 16 ' outside surface is taper; the lower end welding of the upper end of coupling bolt 22 and last protection tube 2; the lower end of coupling bolt 22 with anti-in leak bolt 15 and be threaded and stretch into and leak in the opening of bolt 15 upper ends in anti-; the place, lower surface of coupling bolt 22 is provided with the anti-interior cutting ferrule 16 that leaks; the upper surface of leaking cutting ferrule 16 in anti-contacts with the lower surface of coupling bolt 22; the inside surface that leaks cutting ferrule 16 in anti-contacts with the intimate of armoured thermocouple 3; the outside surface that leaks cutting ferrule 16 in anti-closely contacts with the anti-interior bolt 15 that leaks; anti-interior lower end of leaking bolt 15 is threaded with flange-interface spare 7 and extend in the opening of flange-interface spare 7 upper ends; cutting ferrule 16 ' is leaked in being provided with and preventing in the place, lower surface of leaking bolt 15 in anti-; the upper surface of leaking cutting ferrule 16 ' in anti-contacts with anti-interior lower surface of leaking bolt 15; the inside surface that leaks cutting ferrule 16 ' in anti-contacts with the intimate of armoured thermocouple 3, and the anti-interior outside surface that leaks cutting ferrule 16 ' closely contacts with flange-interface spare 7.
Shown in Fig. 3 a and Fig. 3 b, temperature measuring head 11 is a monoblock type with protection body 12, one side of temperature measuring head 11 is connected with protection body 12, measuring junction 6 can be made by the milling machine global formation, the plane that main anti-mask 13 is a plurality of continuous constitutes the anti-mask of multiple edge body, and main anti-mask 13 is provided with the wearing layer 14 of antiscour anti-coking.
Shown in Fig. 4 a and Fig. 4 b, temperature measuring head 11 ' is split type with protection body 12 ', the through hole that temperature measuring head 11 ' passes on the measuring junction 6 ' is fixedlyed connected with measuring junction 6 ', can process temperature measuring head 11 ' separately, and then it is welded on the measuring junction 6 ', the plane that main anti-mask 13 ' is a plurality of continuous constitutes the anti-mask of multiple edge body, and main anti-mask 13 ' is provided with the wearing layer 14 ' of antiscour anti-coking.
As shown in Figure 5; the utility model is measured pyrolysis furnace COT antiscour anti-coking special electric thermo-couple when actual thermometric uses; be that the utility model thermopair is inserted in the measurement passage 20 that is communicated with boiler tube 19 to be measured; joint flange 4 is connected with flange 21 bolts of measuring passage 20 tops; measuring junction 6 is deep in the boiler tube 19 to be measured; when medium flows by direction as shown in boiler tube 19 to be measured; temperature measuring head 11 just can be measured the temperature in the boiler tube 19 to be measured; simultaneously; the basic keeping parallelism of axis of main anti-mask 13 and boiler tube 19 to be measured; make protection body 12 play protection temperature measuring head 11 and can not be subjected to the effect that the high temperature and high speed medium directly impacts; improved the antiscour anti-coking performance of the utility model thermopair; prolonged serviceable life, the utility model is measured the actual temperature that can measure of pyrolysis furnace COT antiscour anti-coking special electric thermo-couple and is up to 1100 ℃.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (10)
1; a kind of measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couple; comprise terminal box (1); last protection tube (2); armoured thermocouple (3); joint flange (4); under protect eccentric pipe (5) and measuring junction (6); the lower end of wherein said terminal box (1) is connected with the upper end of last protection tube (2); fixedly connected with joint flange (4) by flange-interface spare (7) in described lower end of going up protection tube (2); fixedly connected with protecting eccentric pipe (5) down in the bottom of described joint flange (4); protect the lower end of eccentric pipe (5) to fixedly connected down with measuring junction (6); one end of described armoured thermocouple (3) is fixedly connected in the terminal box (1); the other end passes protection tube (2) and protects eccentric pipe (5) to be inserted in the measuring junction (6) down; it is characterized in that: anti-interior neglected loading also is housed between described upward protection tube (2) and the flange-interface spare (7) puts (8); heat insulation support column (9) also is equipped with in the outside of described armoured thermocouple (3); described heat insulation support column (9) upper end is fixed in the joint flange (4); the lower end is passed down and is protected eccentric pipe (5) to fixedly connected with measuring junction (6); be provided with thermofin (10) in the space between heat insulation support column (9) lateral wall and following protection eccentric pipe (5) madial wall; described measuring junction (6) comprises temperature measuring head (11) and protection body (12); accommodate armoured thermocouple (3) in the described temperature measuring head (11); described protection body (12) is arranged on a side of temperature measuring head (11); it has an anti-mask (13) of master that becomes the α angle with surface level; described master prevents the width of mask (13) and highly is slightly larger than temperature measuring head (11) that main anti-mask (13) is provided with the wearing layer (14) of antiscour anti-coking.
2, measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couple according to claim 1 is characterized in that: described master prevents that mask (13) constitutes for the plane of plurality of continuous.
3, measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couple according to claim 2, it is characterized in that: described temperature measuring head (11) is split type with protection body (12), and the through hole that temperature measuring head (11) passes on the measuring junction (6) is fixedlyed connected with measuring junction (6).
4, measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couple according to claim 2 is characterized in that: described temperature measuring head (11) is a monoblock type with protection body (12), and a side of temperature measuring head (11) and protection body (12) are made one.
5; according to claim 3 or 4 described measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couples; it is characterized in that: described anti-interior neglected loading is put (8) and is comprised coupling bolt (22); leak bolt (15) and a pair of anti-interior cutting ferrule (16 that leaks in anti-; 16 '); the described anti-interior cutting ferrule (16 that leaks; 16 ') outside surface is taper; fixedly connected with the lower end of last protection tube (2) in the upper end of described coupling bolt (22); the lower end of coupling bolt (22) with anti-in leak bolt (15) and be connected and stretch into and leak in the opening of bolt (15) upper end in anti-; the place, lower surface of coupling bolt (22) is provided with the anti-interior cutting ferrule (16) that leaks; described anti-interior upper surface of leaking cutting ferrule (16) contacts with the lower surface of coupling bolt (22); the inside surface that leaks cutting ferrule (16) in anti-contacts with the intimate of armoured thermocouple (3); the outside surface that leaks cutting ferrule (16) in anti-closely contacts with the anti-interior bolt (15) that leaks; described anti-interior lower end of leaking bolt (15) is connected with flange-interface spare (7) and extend in the opening of flange-interface spare (7) upper end; cutting ferrule (16 ') is leaked in being provided with and preventing in the place, lower surface of leaking bolt (15) in anti-; described anti-interior upper surface of leaking cutting ferrule (16 ') contacts with anti-interior lower surface of leaking bolt (15); the inside surface that leaks cutting ferrule (16 ') in anti-contacts with the intimate of armoured thermocouple (3), and the anti-interior outside surface that leaks cutting ferrule (16 ') closely contacts with flange-interface spare (7).
6, measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couple according to claim 5 is characterized in that: described protection eccentric pipe (5) down also is set with heatproof inorganic, ceramic layer (17) with the junction of measuring junction (6).
7, measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couple according to claim 6 is characterized in that: articulation (18) also is equipped with at described protection tube (2) middle part of going up, and described articulation (18) will be gone up protection tube (2) and is divided into two sections.
8, measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couple according to claim 7, it is characterized in that: the material of described wearing layer (14) is the S112 cobalt-base alloys, wearing layer (14) thickness is more than or equal to 2 millimeters.
9, measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couple according to claim 8, it is characterized in that: the material of described temperature measuring head (11) and protection body (12) is the XH45M alloy, and the wall thickness of temperature measuring head (11) is 2.5 millimeters.
10, measurement pyrolysis furnace COT antiscour anti-coking special electric thermo-couple according to claim 9, it is characterized in that: the material of described thermofin (10) is heat insulation fiber ceramics cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920006936XU CN201289405Y (en) | 2008-12-30 | 2009-03-16 | Special-purpose thermoelectric couple for measurement of degradation and coking resistance of pyrolysis furnace COT |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820184106.1 | 2008-12-30 | ||
| CN200820184106 | 2008-12-30 | ||
| CNU200920006936XU CN201289405Y (en) | 2008-12-30 | 2009-03-16 | Special-purpose thermoelectric couple for measurement of degradation and coking resistance of pyrolysis furnace COT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289405Y true CN201289405Y (en) | 2009-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200920006936XU Expired - Lifetime CN201289405Y (en) | 2008-12-30 | 2009-03-16 | Special-purpose thermoelectric couple for measurement of degradation and coking resistance of pyrolysis furnace COT |
Country Status (1)
| Country | Link |
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| CN (1) | CN201289405Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507032A (en) * | 2011-11-04 | 2012-06-20 | 吴方立 | COT thermocouple for cracking furnace |
| CN103277651A (en) * | 2013-06-13 | 2013-09-04 | 常熟市塔帕工业陶瓷有限公司 | Ceramic base for high-temperature thermal detection |
| CN108181011A (en) * | 2017-12-08 | 2018-06-19 | 安徽蓝润自动化仪表有限公司 | A kind of fluid erosion prevention high life lifts multipoint acquisition formula thermocouple certainly |
| CN108254093A (en) * | 2017-12-08 | 2018-07-06 | 安徽蓝润自动化仪表有限公司 | A kind of adjustable fluid erosion prevention lifts thermocouple certainly |
| CN109459153A (en) * | 2018-11-02 | 2019-03-12 | 吴方立 | Cracking furnace COT thermocouple and its protection sleeve pipe |
| CN109959462A (en) * | 2019-04-23 | 2019-07-02 | 安徽天康(集团)股份有限公司 | A kind of plug-in type COT pyrolysis furnace special electric thermo-couple |
| CN115717944A (en) * | 2020-12-10 | 2023-02-28 | 淄博益源工程技术有限公司 | Direct temperature measuring type COT surface thermocouple |
-
2009
- 2009-03-16 CN CNU200920006936XU patent/CN201289405Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507032A (en) * | 2011-11-04 | 2012-06-20 | 吴方立 | COT thermocouple for cracking furnace |
| CN102507032B (en) * | 2011-11-04 | 2016-03-30 | 吴方立 | cracking furnace COT thermocouple |
| CN103277651A (en) * | 2013-06-13 | 2013-09-04 | 常熟市塔帕工业陶瓷有限公司 | Ceramic base for high-temperature thermal detection |
| CN103277651B (en) * | 2013-06-13 | 2016-04-06 | 新乡学院 | A kind of base of ceramic for high-temperature thermal detection |
| CN108181011A (en) * | 2017-12-08 | 2018-06-19 | 安徽蓝润自动化仪表有限公司 | A kind of fluid erosion prevention high life lifts multipoint acquisition formula thermocouple certainly |
| CN108254093A (en) * | 2017-12-08 | 2018-07-06 | 安徽蓝润自动化仪表有限公司 | A kind of adjustable fluid erosion prevention lifts thermocouple certainly |
| CN109459153A (en) * | 2018-11-02 | 2019-03-12 | 吴方立 | Cracking furnace COT thermocouple and its protection sleeve pipe |
| CN109959462A (en) * | 2019-04-23 | 2019-07-02 | 安徽天康(集团)股份有限公司 | A kind of plug-in type COT pyrolysis furnace special electric thermo-couple |
| CN115717944A (en) * | 2020-12-10 | 2023-02-28 | 淄博益源工程技术有限公司 | Direct temperature measuring type COT surface thermocouple |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IP01 | Partial invalidation of patent right |
Commission number: 5W100175 Conclusion of examination: The claim No. 1-4 of the patent No. ZL200920006936.X shall be void and shall remain valid on the basis of claim 5-10. Decision date of declaring invalidation: 20100927 Decision number of declaring invalidation: 15344 Denomination of utility model: Special-purpose thermoelectric couple for measurement of degradation and coking resistance of pyrolysis furnace COT Granted publication date: 20090812 Patentee: Yueqing Lunte Instrument Co. Ltd.|Wu Jiate |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090812 |