CN111649837A - Boiler water wall fin temperature measuring device - Google Patents
Boiler water wall fin temperature measuring device Download PDFInfo
- Publication number
- CN111649837A CN111649837A CN202010639061.8A CN202010639061A CN111649837A CN 111649837 A CN111649837 A CN 111649837A CN 202010639061 A CN202010639061 A CN 202010639061A CN 111649837 A CN111649837 A CN 111649837A
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- China
- Prior art keywords
- hole
- thermocouple
- fin
- block
- heat collecting
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- 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.)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K1/143—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations for measuring surface temperatures
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a temperature measuring device for a boiler water wall fin, which is characterized in that: the heat collecting device comprises a first through hole formed in a water-cooled wall fin, a heat collecting block arranged in the first through hole and fixedly connected with the water-cooled wall fin, and a thermocouple arranged in the heat collecting block, wherein a fixing device used for fixing the thermocouple is arranged on the heat collecting block. The invention inserts the thermocouple into the fin, can measure the temperature of the inner surface of the fin, and can more truly reflect the working temperature of the fin compared with the conventional measurement of the temperature of the outer surface of the fin. Meanwhile, the thermocouple is fastened at the fin by arranging the heat collection block, so that the thermocouple is not easy to fall off, and the reliability of the temperature measuring point is improved. The invention has simple installation, low cost and high feasibility, can be installed at most of the fins of the water wall of the boiler and has wide application.
Description
Technical Field
The invention relates to a temperature measuring device for a boiler water wall fin, and belongs to the technical field of combustion equipment.
Background
Experience shows that the ash and dirt condition of the area can be well predicted by utilizing the temperature of the fins of the water cooling wall of the boiler and combining the temperature of the working medium. At present, the measurement of the temperature of the working medium is easy to realize, but the measurement of the temperature of the fins still has certain difficulty. According to the conventional method, the temperature of the fins is usually measured by fixing the thermocouple on the outer surfaces of the fins by using a pressing block, but the temperature of the outer surfaces of the fins measured by the method is close to the temperature of the working medium, so that the temperature difference between the fins and the working medium cannot be well reflected, and the ash and dirt condition of a water cooling wall cannot be judged conveniently.
Therefore, it is very important to research a temperature measuring device with accurate temperature measurement, convenient thermocouple installation and stability.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the conventional boiler water wall fin temperature measuring device has the problems of inaccurate data and instable thermocouple installation.
In order to solve the problems, the technical scheme of the invention is to provide a temperature measuring device for a boiler water wall fin, which is characterized in that: the heat collecting device comprises a first through hole formed in a water-cooled wall fin, a heat collecting block arranged in the first through hole and fixedly connected with the water-cooled wall fin, and a thermocouple arranged in the heat collecting block, wherein a fixing device used for fixing the thermocouple is arranged on the heat collecting block.
Preferably, the fixing device comprises a second through hole which is arranged on the heat collection block in a penetrating mode and used for placing the thermocouple, a threaded hole is formed in the heat collection block and perpendicular to the second through hole, and the thermocouple is locked and fixed in the second through hole by matching a fastening piece with the threaded hole.
Preferably, the first through hole is formed along the thickness direction of the water-cooled wall fin, and the depth of the heat collection block in the first through hole is the same as the thickness of the water-cooled wall fin.
Preferably, a direction of the second through hole coincides with a direction in which the heat collecting block is inserted into the first through hole.
Preferably, the depth of the thermocouple in the second through hole is the same as the height of the heat collecting block.
Preferably, the heat collecting block and the first through hole are fixed by adopting a threaded connection or welding.
Preferably, the heat collecting block is a cylinder or a cuboid, and the second through hole penetrates through the center of the heat collecting block.
Preferably, the material of the heat collecting block adopts alloy steel.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention inserts the thermocouple into the fin, can measure the temperature of the inner surface of the fin, compared with the conventional measurement of the temperature of the outer surface of the fin, the invention can more truly reflect the working temperature of the fin;
(2) the thermocouple is fastened at the fin by arranging the heat collection block, so that the thermocouple is not easy to fall off, and the reliability of a temperature measuring point is improved;
(3) the invention has simple installation, low cost and high feasibility, can be matched with most of boiler water wall fins for use, and has wide application.
Drawings
FIG. 1 is a device for measuring the temperature of a boiler water wall fin according to the present invention.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
As shown in FIG. 1, the temperature measuring device for the boiler water wall fin of the present invention comprises a heat collecting block 1, a thermocouple 2 and a bolt 3, wherein the thickness of the water wall fin 4 of the present embodiment is 6mm, a first through hole 5 is formed in the thickness direction of the water wall fin 4, the heat collecting block 1 is inserted into the first through hole 5, the outer diameter of the heat collecting block 1 is phi 12mm, and the depth of the heat collecting block 1 inserted into the first through hole 5 is the same as the thickness of the water wall fin 4. The bottom end of the heat collection block 1 is flush with the bottom surface of the water wall fin 4, and the top end of the heat collection block 1 is 10mm higher than the top surface of the water wall fin 4. The heat collection block 1 and the through hole I5 can be fixed in the through hole I5 of the water wall fin 4 in a welding mode, threads can be machined in the through hole I5, and the heat collection block 1 and the water wall fin 4 are fixed in a threaded connection mode.
The heat collection block 1 is cylindrical or cuboid, alloy steel is adopted as a material, a smooth phi 4mm through hole II 6 penetrates through the center of the heat collection block 1, and the direction of the through hole II 6 is consistent with the direction of the heat collection block 1 inserted into the through hole I5. The M5 screw hole 7 is processed on the side wall of the heat collecting block 1, the direction of the screw hole 7 is perpendicular to the second through hole 6, the thermocouple 2 with the specification of phi 3mm is inserted into the second through hole 6 of the heat collecting block 1, and the insertion depth is the same as the height of the heat collecting block 1. The bolt 3 is screwed into the screw hole 7 of the heat collecting block 1 to fasten the thermocouple 2 in the through hole two 6. The thermocouple 2 is inserted into the water-cooling wall fins 4, the temperature of the inner surfaces of the water-cooling wall fins 4 can be measured, and compared with the conventional method for measuring the temperature of the outer surfaces of the water-cooling wall fins 4, the method can truly reflect the working temperature of the water-cooling wall fins 4.
The protection scope of the present invention is not limited to the above examples, and all the equivalent structures or equivalent flow transformations made by the contents of the present specification and the drawings, or directly or indirectly applied to other related arts, are included in the protection scope of the present patent.
Claims (8)
1. The utility model provides a boiler water wall fin temperature measuring device which characterized in that: the heat collecting device comprises a through hole I (5) arranged on a water-cooled wall fin (4), a heat collecting block (1) arranged in the through hole I (5) and fixedly connected with the water-cooled wall fin (4), and a thermocouple (2) arranged in the heat collecting block (1), wherein a fixing device for fixing the thermocouple (2) is arranged on the heat collecting block (1).
2. The apparatus of claim 1, wherein: the fixing device comprises a second through hole (6) which is arranged on the heat collection block (1) in a penetrating mode and used for placing the thermocouple (2), a threaded hole (7) is formed in the heat collection block (1) and perpendicular to the second through hole (6), and the thermocouple (2) is locked and fixed in the second through hole (6) through matching of a fastening piece and the threaded hole (7).
3. The apparatus of claim 1, wherein: the through hole I (5) is arranged along the thickness direction of the water wall fin (4), and the depth of the heat collection block (1) in the through hole I (5) is the same as the thickness of the water wall fin (4).
4. The apparatus of claim 2, wherein: the direction of the second through hole (6) is consistent with the direction of the heat collection block (1) inserted into the first through hole (5).
5. The apparatus of claim 1, wherein: the depth of the thermocouple (2) in the through hole II (6) is the same as the height of the heat collection block (1).
6. The apparatus of claim 1, wherein: the heat collection block (1) and the first through hole (5) are fixedly connected through threads or welded.
7. The apparatus of claim 1, wherein: the heat collection block (1) is a cylinder or a cuboid, and the through hole II (6) penetrates through the center of the heat collection block (1).
8. The apparatus of claim 1, wherein: the heat collecting block (1) is made of alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010639061.8A CN111649837A (en) | 2020-07-06 | 2020-07-06 | Boiler water wall fin temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010639061.8A CN111649837A (en) | 2020-07-06 | 2020-07-06 | Boiler water wall fin temperature measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111649837A true CN111649837A (en) | 2020-09-11 |
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ID=72347646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010639061.8A Pending CN111649837A (en) | 2020-07-06 | 2020-07-06 | Boiler water wall fin temperature measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111649837A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847611A (en) * | 2021-08-18 | 2021-12-28 | 浙江大学 | Power station boiler furnace intelligent soot blowing system and method based on online monitoring of inner wall temperature of furnace |
| CN116399470A (en) * | 2023-02-28 | 2023-07-07 | 国能锅炉压力容器检验有限公司 | Device and method for monitoring temperature of fire side of water-cooled wall of power station boiler |
-
2020
- 2020-07-06 CN CN202010639061.8A patent/CN111649837A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847611A (en) * | 2021-08-18 | 2021-12-28 | 浙江大学 | Power station boiler furnace intelligent soot blowing system and method based on online monitoring of inner wall temperature of furnace |
| CN113847611B (en) * | 2021-08-18 | 2022-04-12 | 浙江大学 | Intelligent soot blowing system and method for power station boiler furnace |
| CN116399470A (en) * | 2023-02-28 | 2023-07-07 | 国能锅炉压力容器检验有限公司 | Device and method for monitoring temperature of fire side of water-cooled wall of power station boiler |
| CN116399470B (en) * | 2023-02-28 | 2023-09-26 | 国能锅炉压力容器检验有限公司 | Device and method for monitoring temperature of fire side of water-cooled wall of power station boiler |
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