CN220960359U - Quick response abrasionproof ash conveying temperature measuring device and ash conveying system - Google Patents
Quick response abrasionproof ash conveying temperature measuring device and ash conveying system Download PDFInfo
- Publication number
- CN220960359U CN220960359U CN202322568758.2U CN202322568758U CN220960359U CN 220960359 U CN220960359 U CN 220960359U CN 202322568758 U CN202322568758 U CN 202322568758U CN 220960359 U CN220960359 U CN 220960359U
- Authority
- CN
- China
- Prior art keywords
- thermocouple
- ash
- measuring device
- temperature measuring
- sealing cover
- Prior art date
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 69
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 238000003825 pressing Methods 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 20
- 238000009529 body temperature measurement Methods 0.000 claims description 3
- 239000002956 ash Substances 0.000 description 54
- 238000000034 method Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to an ash conveying temperature measuring device and an ash conveying system with quick response and wear resistance, comprising: thermocouple, fixing seat, sealing pad and sealing cover; the thermocouple stretches into the pipeline, and a protective cover is arranged on the thermocouple in the incoming flow direction of the pipeline; the protective cover extends out of the thermocouple measuring end; the fixed seat is fixedly arranged on the pipeline; the thermocouple and the sealing gasket are accommodated in the fixed seat; the sealing cover is fixed on the fixing seat through threaded connection; the sealing gasket and the sealing cover are respectively provided with a through hole for accommodating the thermocouple to pass through.
Description
Technical Field
The utility model relates to a quick-response wear-resistant ash conveying temperature measuring device and an ash conveying system, and belongs to the field of ash conveying systems.
Background
The fly ash of large-scale coal-fired boiler adopts pneumatic conveying mostly, and its advantage is that can recycle fly ash compared with wet conveying. The ash conveying amount of the ash conveying system is related to the coal quality condition and the operation state of the boiler and the dust remover. Temperature measuring devices are required to be installed on pipelines at all positions in the ash conveying process. In general, ash delivery time is not long, and thermocouples arranged on the ash dropping pipe and the ash delivery pipe are required to measure response speed quickly, and wear resistance, corrosion resistance and ash accumulation resistance are required to improve accuracy. Therefore, there is a need for a temperature measurement device suitable for use in ash handling systems.
Disclosure of utility model
In order to solve the problems in the prior art, the utility model provides a rapid-response wear-resistant ash conveying temperature measuring device and an ash conveying system, wherein a protective cover is arranged on a thermocouple shell to protect a thermocouple measuring end from being impacted by ash conveying airflow, and the rapid-response wear-resistant ash conveying temperature measuring device has the advantages of wear resistance, corrosion resistance, ash accumulation resistance and the like.
The technical scheme of the utility model is as follows:
the technical scheme is as follows:
an ash conveying temperature measuring device with quick response and wear resistance, comprising: thermocouple, fixing seat, sealing pad and sealing cover;
The thermocouple stretches into the pipeline, and a protective cover is arranged on the thermocouple in the incoming flow direction of the pipeline; the protective cover extends out of the thermocouple measuring end;
The fixed seat is fixedly arranged on the pipeline;
The thermocouple and the sealing gasket are accommodated in the fixed seat;
The sealing cover is fixed on the fixing seat through threaded connection;
the sealing gasket and the sealing cover are respectively provided with a through hole for accommodating the thermocouple to pass through.
Further, the method further comprises the following steps: the pressing plate is accommodated in the fixing seat, is arranged above the sealing gasket and is provided with a through hole for accommodating the thermocouple to pass through.
Further, the thermocouple comprises a first metal wire, a second metal wire, a housing and a protective cover; the first metal wire and the second metal wire extend out of the shell, and the connection point of the first metal wire and the second metal wire is flat, so that a thermocouple measuring end is formed.
Further, a boss is arranged on one side of the pressing plate, facing the sealing cover, and a boss is correspondingly arranged on the inner bottom surface of the sealing cover.
Further, a sliding block is arranged on the outer surface of the thermocouple, and a first slideway and a second slideway for the sliding block to move are arranged on the inner wall of the through hole of the sealing cover in the length direction and the circumferential direction; the first slideway is connected with the second slideway.
The second technical scheme is as follows:
An ash handling system provided with a temperature measuring device, comprising: an ash conveying air source, a plurality of ash hoppers, a plurality of bin pumps, an ash warehouse, an ash conveying pipeline and a temperature measuring device;
The ash bucket is connected with the bin pump; the ash conveying pipeline comprises a main pipe and a plurality of branches extending from the main pipe; the main pipe is connected with an ash conveying air source, and each branch is connected with an ash dropping pipe of the bin pump and is converged into an ash warehouse;
The temperature measuring device includes: thermocouple and fixing base; the thermocouple is arranged on the main pipe, the bin pump ash dropping pipe and each branch through the fixing seat;
The thermocouple stretches into the pipeline, and a protective cover is arranged on the thermocouple in the incoming flow direction of the pipeline; the protective cover extends out of the thermocouple measuring end.
Further, the temperature measuring device also comprises a sealing gasket, a pressing plate and a sealing cover;
the thermocouple, the sealing gasket and the pressing plate are accommodated in the fixed seat, and the pressing plate is arranged on the sealing gasket;
The sealing cover is fixed on the fixing seat through threaded connection;
The sealing gasket, the pressing plate and the sealing cover are all provided with through holes for accommodating thermocouples to pass through.
Further, the thermocouple comprises a first metal wire, a second metal wire, a housing and a protective cover; the first metal wire and the second metal wire extend out of the shell, and the connection point of the first metal wire and the second metal wire is flat, so that a thermocouple measuring end is formed.
Further, a boss is arranged on one side of the pressing plate, facing the sealing cover, and a boss is correspondingly arranged on the inner bottom surface of the sealing cover.
Further, a sliding block is arranged on the outer surface of the thermocouple, and a first slideway and a second slideway for the sliding block to move are arranged on the inner wall of the through hole of the sealing cover in the length direction and the circumferential direction; the first slideway is connected with the second slideway.
The utility model has the following beneficial effects:
1. A protective cover is arranged on the thermocouple shell to protect the thermocouple measuring end from being impacted by ash conveying airflow, and the thermocouple shell has the advantages of wear resistance, corrosion resistance, ash accumulation resistance and the like.
2. The thermocouple measuring end is flat, so that the contact area is increased, and the response speed of the thermocouple is improved.
3. According to the utility model, the boss is arranged on the sealing cover and the pressing plate, so that the contact area of the sealing cover and the pressing plate is reduced, and the sealing gasket cannot rotate along with the sealing cover when the sealing cover is screwed down.
4. According to the utility model, the sliding blocks are moved to different second slideways, so that the extending lengths of the thermocouples are changed and fixed, meanwhile, workers can keep the extending lengths of the thermocouples at all measuring points of the boiler dust remover consistent, and the measuring accuracy is ensured.
Drawings
FIGS. 1-3 are schematic diagrams of temperature measuring devices;
FIG. 4 is a schematic view of a seal cap;
FIGS. 5-6 are schematic views of protective covers;
FIG. 7 is a schematic diagram of the seal cap mated with a thermocouple;
FIG. 8 is a schematic view of a first slide and a second slide;
Fig. 9 is a schematic view of a boiler dust collector.
In the figure: 1. a thermocouple; 101. a slide block; 2. a fixing seat; 3. a sealing gasket; 4. a pressing plate; 5. sealing cover; 501. a first slideway; 502. a second slideway; 6. and a protective cover.
Detailed Description
The utility model will now be described in detail with reference to the drawings and to specific embodiments.
Example 1
As shown in fig. 9, an ash handling system includes: an ash conveying air source, a plurality of ash hoppers, a plurality of bin pumps, an ash warehouse, an ash conveying pipeline and a measuring unit. The ash bucket is connected with the bin pump. The ash conveying pipeline comprises a main pipe and a plurality of branches extending from the main pipe. The main pipe is connected with an ash conveying air source, and each branch is connected with an ash dropping pipe of the bin pump. Compressed air enters the branch from the ash conveying air source, ash materials enter the branch through the ash hopper and the ash falling pipe of the bin pump, and the ash materials are sent to the ash warehouse by the compressed air in the branch.
The measuring unit is used for measuring the volume flow of the compressed air, the pressure of the compressed air, the temperature of the compressed air, the ash falling temperature and the ash mixing temperature of the mixture of the compressed air and the ash. The method specifically comprises the following steps: the main pipe is provided with a flowmeter, a temperature measuring device and a pressure gauge; the bin pump ash dropping pipe is provided with a temperature measuring device for measuring ash dropping temperature; the branch is provided with a valve, and a temperature measuring device is arranged at the downstream of the joint of the branch and the ash falling pipe of the bin pump and is used for measuring the ash gas mixing temperature.
As shown in fig. 1 to 4, the temperature measuring device includes: thermocouple 1, fixing base 2, sealing pad 3, clamp plate 4 and sealed lid 5.
As shown in fig. 5-6, the thermocouple 1 is an armored thermocouple 1, a protective cover 6 is arranged on the shell, the radial coverage area of the protective cover 6 is a semicircle, the front surface faces the incoming flow direction, and the thermocouple 1 inserted into the inner part of the pipe is covered and slightly longer than the thermocouple 1. For ease of installation, the protective cap 6 may be fixed to the thermocouple 1 by a welding method with a low temperature such as brazing or contact welding. The thermocouple 1 measuring end structure is as follows: the two wires of the thermocouple 1 are exposed out of the housing, and are welded after being processed into a flat shape at the joint, so as to improve the response speed.
The fixing seat 2 is welded on the pipe wall, and one end of the fixing seat far away from the pipe wall is provided with male threads.
The inner side surface of the sealing cover 5 is provided with female threads matched with the male threads.
The gasket 3 comprises a plurality of silicone rubber blocks and is placed in the fixing seat 2. The arrangement of the silicone rubber blocks is two, as shown in figures 1 and 2. The silicone rubber block is pressed radially, so that the thermocouple 1 is sealed.
The pressing plate 4 is arranged between the sealing gasket 3 and the sealing cover 5, and the shape of the pressing plate 4 is matched with the opening end of the fixed seat 2. The pressing plate 4 is provided with a boss on one side facing the sealing cover 5, and correspondingly, the inner bottom surface of the sealing cover 5 is also provided with a boss. The pressing plate 4 is used for pressing the sealing gasket 3, and the diameter of the boss is smaller so as to ensure that the sealing gasket 3 cannot rotate along with the sealing cover 5 when the sealing cover 5 is screwed down.
The pipe wall, the sealing gasket 3, the pressing plate 4 and the sealing cover 5 are all provided with through holes for accommodating the thermoelectric couple 1 to pass through.
Example two
The present embodiment is different from the first embodiment in that:
As shown in fig. 7 to 8, the outer surface of the thermocouple 1 is formed with a slider 101 protruding. Forming a local bulge on the outer shell of the thermocouple 1 through a stamping process; or the sliding block 101 is fixedly arranged on the outer shell of the thermocouple 1 through a welding mode. Correspondingly, a first slideway 501 and a second slideway 502 for the sliding block 101 to move are arranged on the inner wall of the through hole of the sealing cover 5 in the length direction and the circumferential direction; the first slide 501 is connected to the second slide 502.
The thermocouple 1 is inserted into a through hole of a pipeline to be tested, the sealing gasket 3 and the pressing plate 4 are sequentially placed into the mounting seat, and the sealing cover 5 is screwed on the mounting seat. At this time, the thermocouple 1 slider 101 does not enter the first slide 501 of the sealing cap 5.
Adjusting the extension length of the thermocouple 1: moving the thermocouple 1, so that the slider 101 of the thermocouple 1 enters the sealing cover 5 and moves along the first slideway 501; when the length of the thermocouple 1 extending into the pipeline meets the requirement, the thermocouple 1 is rotated, the sliding block 101 enters the second sliding block 502 from the first sliding block 501, and the extending length of the thermocouple 1 is fixed through the cooperation of the second sliding block 502 and the sliding block 101 of the thermocouple 1.
The improvement of the embodiment is that the extending length of the thermocouple 1 is changed and fixed by moving the sliding block 101 to the second sliding way 502 which is different, and meanwhile, the extending length of the thermocouple 1 at each measuring point of the boiler dust remover is kept consistent by staff, so that the measuring accuracy is ensured.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (10)
1. An ash conveying temperature measuring device with quick response and wear resistance, which is characterized by comprising: thermocouple (1), fixing base (2), sealing pad (3) and sealing cover (5);
The thermocouple (1) stretches into the pipeline, and a protective cover (6) is arranged on the thermocouple (1) in the incoming flow direction of the pipeline; the protective cover (6) extends out of the measuring end of the thermocouple (1);
The fixed seat (2) is fixedly arranged on the pipeline;
the thermocouple (1) and the sealing gasket (3) are accommodated in the fixed seat (2);
The sealing cover (5) is fixed on the fixed seat (2) through threaded connection;
the sealing gasket (3) and the sealing cover (5) are respectively provided with a through hole for accommodating the thermocouple (1) to pass through.
2. The quick response wear resistant ash handling temperature measurement device of claim 1, further comprising: and the pressing plate (4) is accommodated in the fixing seat (2), and the pressing plate (4) is arranged above the sealing gasket (3) and is provided with a through hole for accommodating the thermocouple (1) to pass through.
3. The ash handling temperature measurement device of claim 1, characterized in that the thermocouple (1) comprises a first wire, a second wire, a housing and a protective cover (6); the first metal wire and the second metal wire extend out of the shell, and the connection point of the first metal wire and the second metal wire is flat, so that a measuring end of the thermocouple (1) is formed.
4. The ash conveying temperature measuring device with quick response and wear resistance according to claim 2, wherein a boss is arranged on one side of the pressing plate (4) facing the sealing cover (5), and a boss is correspondingly arranged on the inner bottom surface of the sealing cover (5).
5. The quick-response wear-resistant ash conveying temperature measuring device according to claim 1, wherein a sliding block (101) is arranged on the outer surface of the thermocouple (1), and a first slideway (501) and a second slideway (502) for the sliding block (101) to move are arranged on the inner wall of the through hole of the sealing cover (5) in the length direction and the circumferential direction; the first slideway (501) is connected with the second slideway (502).
6. An ash conveying system provided with a temperature measuring device, characterized by comprising: an ash conveying air source, a plurality of ash hoppers, a plurality of bin pumps, an ash warehouse, an ash conveying pipeline and a temperature measuring device;
The ash bucket is connected with the bin pump; the ash conveying pipeline comprises a main pipe and a plurality of branches extending from the main pipe; the main pipe is connected with an ash conveying air source, and each branch is connected with an ash dropping pipe of the bin pump and is converged into an ash warehouse;
The temperature measuring device includes: a thermocouple (1) and a fixed seat (2); the thermocouple (1) is arranged on the main pipe, the bin pump ash dropping pipe and each branch through the fixing seat (2);
The thermocouple (1) stretches into the pipeline, and a protective cover (6) is arranged on the thermocouple (1) in the incoming flow direction of the pipeline; the protection cover (6) extends out of the measuring end of the thermocouple (1).
7. An ash handling system provided with a temperature measuring device according to claim 6, characterized in that the temperature measuring device further comprises a gasket (3), a pressure plate (4) and a sealing cover (5);
The thermocouple (1), the sealing gasket (3) and the pressing plate (4) are accommodated in the fixed seat (2), and the pressing plate (4) is arranged on the sealing gasket (3);
The sealing cover (5) is fixed on the fixed seat (2) through threaded connection;
the sealing gasket (3), the pressing plate (4) and the sealing cover (5) are all provided with through holes for accommodating the thermocouples (1) to penetrate through.
8. An ash handling system provided with a temperature measuring device according to claim 6, characterized in that the thermocouple (1) comprises a first wire, a second wire, a housing and a protective cover (6); the first metal wire and the second metal wire extend out of the shell, and the connection point of the first metal wire and the second metal wire is flat, so that a measuring end of the thermocouple (1) is formed.
9. An ash conveying system with a temperature measuring device according to claim 7, characterized in that a boss is arranged on one side of the pressing plate (4) facing the sealing cover (5), and a boss is correspondingly arranged on the inner bottom surface of the sealing cover (5).
10. The ash conveying system with the temperature measuring device according to claim 7, wherein the outer surface of the thermocouple (1) is provided with a sliding block (101), and the inner wall of the through hole of the sealing cover (5) is provided with a first slideway (501) and a second slideway (502) for the sliding block (101) to move in the length direction and the circumferential direction; the first slideway (501) is connected with the second slideway (502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322568758.2U CN220960359U (en) | 2023-09-20 | 2023-09-20 | Quick response abrasionproof ash conveying temperature measuring device and ash conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322568758.2U CN220960359U (en) | 2023-09-20 | 2023-09-20 | Quick response abrasionproof ash conveying temperature measuring device and ash conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220960359U true CN220960359U (en) | 2024-05-14 |
Family
ID=91020086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322568758.2U Active CN220960359U (en) | 2023-09-20 | 2023-09-20 | Quick response abrasionproof ash conveying temperature measuring device and ash conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220960359U (en) |
-
2023
- 2023-09-20 CN CN202322568758.2U patent/CN220960359U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220960359U (en) | Quick response abrasionproof ash conveying temperature measuring device and ash conveying system | |
| CN112325956A (en) | Induction type high-temperature gas-solid two-phase flow measuring instrument and measuring method thereof | |
| CN107327711A (en) | A kind of scan-type pipeline leakage testing agency | |
| CN102928020B (en) | Device for detecting differential pressure and flow velocity | |
| CN201902557U (en) | Air seal device of fan principle axis | |
| CN105203713A (en) | Intelligent automatic air sampling device used for occupational health | |
| CN210035087U (en) | Pipeline pressure measuring device | |
| CN110895181A (en) | Helium leakage detection sealing plug for welding seam of heat transfer pipe and tube plate of steam generator | |
| CN109268691B (en) | System for automatically prejudging leakage of volatile chemical medium pipeline | |
| CN209727175U (en) | A kind of high accurate hole flowmeter | |
| CN112483648B (en) | Probe sealing structure for high-pressure fluid pipeline | |
| CN209231159U (en) | One kind being used for thermal power plant's coal powder density on-line measurement device | |
| CN112197913A (en) | Sliding type pipeline leakage point detection positioning device and detection positioning method thereof | |
| CN201739776U (en) | On-line density measuring device for oil delivery pipelines | |
| CN207408425U (en) | A kind of slidingtype backrest pitot tube | |
| CN205084858U (en) | Vapour -pressure type putty alarm | |
| CN212335219U (en) | High stability pressure transmitter device | |
| CN211042361U (en) | Pressure guiding device of flue gas pipeline orifice plate flowmeter of industrial furnace | |
| CN210400758U (en) | Rifle gas tightness test equipment charges | |
| CN218455488U (en) | Air quantity measuring equipment for cylindrical tuyere | |
| CN212458477U (en) | Sealing structure applied to sensor lead of gas turbine flowmeter | |
| CN221006260U (en) | Adjustable linear displacement sensor | |
| CN208431504U (en) | A kind of extension flange | |
| CN212843006U (en) | Fire detection measuring device with dust removal and decoking structure | |
| CN212207425U (en) | Multidirectional wind-powder wind speed measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |