CN205449844U - Self -cooling boiler high temperature heat flow meter with ash blocking performance - Google Patents
Self -cooling boiler high temperature heat flow meter with ash blocking performance Download PDFInfo
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- CN205449844U CN205449844U CN201620153648.7U CN201620153648U CN205449844U CN 205449844 U CN205449844 U CN 205449844U CN 201620153648 U CN201620153648 U CN 201620153648U CN 205449844 U CN205449844 U CN 205449844U
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- flow meter
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Abstract
The utility model provides a self -cooling boiler high temperature heat flow meter with ash blocking performance installs the thermocouple in the lower heat -conducting piece of coefficient of heat conductivity, the back of the body fire side of heat -conducting piece links into an integrated entity with the higher cooling piece of coefficient of heat conductivity, and the both sides wall of cooling piece is the arc, and the lower level applies ointment or plaster on water cold wall pipe pipe wall, the side of waring oneself in front of a fire of heat -conducting piece links into an integrated entity with ash blocking spare, and the shape structure of ash blocking spare is the same with the cooling piece, and ash blocking spare forms the ash blocking protective screen in the side of waring oneself in front of a fire. This heat flow meter is direct regards water cold wall pipe as the cold junction heat source, has from cooling function, has saved the water cooling system of current heat flow meter, makes the heat flow meter structure simplify, heat -conducting piece and cooling piece zonulae occludens, the cooling effect is good, ash blocking spare can block that the flame dust in the slagging scorification of water cold wall pipe fin department, avoids the heat flow meter measurement influenced by the slagging scorification, heat flow meter measurement accuracy is high, and measuring error is little.
Description
Technical field
This utility model relates to winer construction device, a kind of cooling boiler high temperature heat-flow meter certainly with gear ash performance.
Background technology
In high-temperature service, heat flow density is an important parameter of equipment operation condition, and maintenance and improvement, verification result of calculation etc. including equipment are required for carrying out heat flow density analysis.How the heat-conducting heat-flow meter that detection boiler hot current density is conventional, simplify its structure, avoid boiler operatiopn generation impact being an important subject in the case of ensureing certainty of measurement in design.
Existing boiler heat-conducting heat-flow meter mostly uses water-cooling system to make the cold junction temperature of heat-conducting piece the most stable, and the difference variation of the heat-conducting piece recorded by thermocouple measures heat flow density.This heat-flow meter there is the problem that building water-cooling system on a large scale can increase the complexity of boiler plant；Complicated water-cooling system easily breaks down in actual motion, once breaks down and heat-flow meter overtemperature can be caused to damage；Additionally, affected to fire side fouling and slagging by boiler water-wall tube, when at the fin of water screen tube, slagging scorification is thicker, the heat flow density that the heat flow density that heat-flow meter heat-conducting piece can be caused actually measured absorbs less than water screen tube, causes measurement error.
Utility model content
The above-mentioned technical problem existed for existing boiler hot flowmeter, the purpose of this utility model is to provide a kind of simple in construction, is not susceptible to the cooling boiler high temperature heat-flow meter certainly with gear ash performance that cooling failure, accuracy of measurement are not affected by thickness of slag layer.
What the present invention provided has the cooling boiler high temperature heat-flow meter certainly of gear ash performance, and including the heat-conducting piece that heat conductivity is relatively low, the lead-in wire being provided with hot junction thermocouple and cold end thermocouple, hot junction thermocouple and cold end thermocouple in heat-conducting piece is drawn from the hole of heat-conducting piece；It is characterized in:
Back-fire side (downside in Fig. 1) cooling piece higher with heat conductivity of heat-conducting piece is threadeded integral, the two side of cooling piece is curved, the diameter of arc more than the external diameter of boiler water-wall tube, makes the lower edge of (when heat-flow meter uses) two side tube wall respectively with boiler water-wall tube back-fire side form tangent overlap joint；
Heat-conducting piece threaded integral to the grey part of fire side (in Fig. 1 upside) and gear, the shape and structure of gear ash part is identical with described cooling piece, the upper limb of two curved walls of gear ash part forms tangent overlap joint with the boiler water-wall tube tube wall to fiery side, keeps off ash barrier being formed to fire side of water screen tube.
This utility model heat-flow meter has the advantage that
1, cooling piece is overlapped with water screen tube tangent by its two side, make to apply ointment or plaster below on the tube wall of water screen tube, directly using water screen tube as the cold end thermal source of heat-flow meter, heat-flow meter is made to have self-cooling function, thus eliminate the water-cooling system of existing heat-flow meter, make heat-flow meter structure greatly simplified, create condition for widening the range of application of heat-flow meter.
2, in the heat-conducting piece that heat conductivity is low, temperature is linearly distributed (being approximately one-dimensional heat conduction process), the cooling piece high with heat conductivity is integral by screw thread compact siro spinning technology, good cooling results, and heat flux sensors ' measurement precision is high, error is little, and cooling failure will not occur.
3, gear ash part keeps off ash barrier being formed to fire side of water screen tube, stops the slagging scorification at water screen tube fin of flame dust, it is to avoid the measurement of heat-flow meter is affected by slagging scorification, and heat flux sensors ' measurement precision is high, and measurement error is little.
Accompanying drawing explanation
Fig. 1 is this utility model heat-flow meter structure and installs and uses schematic diagram (sectional view)；
Fig. 2 is the enlarged drawing of heat-flow meter in Fig. 1；
Fig. 3 is the sectional view of heat-conducting piece in Fig. 2.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings.
In conjunction with Fig. 1, Fig. 2 and Fig. 3, this utility model boiler high temperature heat-flow meter, during use, the heat-conducting piece 1 that its heat conductivity is higher is placed between the fin 6 of boiler water-wall tube 5, and contacts with fin.Being provided with hot junction thermocouple 4a and cold end thermocouple 4b in heat-conducting piece, the lead-in wire of thermocouple is drawn from the hole that heat-conducting piece back-fire side (downside Fig. 1) part is axially offered.The back-fire side of heat-conducting piece is threaded connection and is integrally forming with cooling piece 2.The two side of cooling piece is curved, the diameter of arc is more than the external diameter of boiler water-wall tube, when heat-flow meter uses, the lower edge of two curved walls tube wall with boiler water-wall tube back-fire side respectively forms tangent overlap joint as shown in Figure 1, make applying respectively on the tube wall of water screen tube below of two side, directly using water screen tube as the cold end thermal source of heat-flow meter, heat-flow meter is made to have self-cooling function.
Heat-conducting piece threaded integral to the grey part 3 of fire side (in Fig. 1 upside) and gear, the shape and structure of this gear ash part is identical with cooling piece, the upper limb of its two curved wall forms tangent overlap joint with the boiler water-wall tube tube wall to fire side, ash barrier is kept off being formed to fire side of water screen tube, stop the slagging scorification at water screen tube fin of flame dust, it is to avoid heat-flow meter is measured to be affected by slagging scorification.
Claims (1)
1. a cooling boiler high temperature heat-flow meter certainly with gear ash performance, including the heat-conducting piece (1) that heat conductivity is relatively low, the lead-in wire being provided with hot junction thermocouple (4a) and cold end thermocouple (4b), hot junction thermocouple and cold end thermocouple in heat-conducting piece is drawn from the hole of heat-conducting piece；It is characterized in that:
The cooling piece (2) that the back-fire side of heat-conducting piece is higher with heat conductivity is threadeded integral, the two side of cooling piece is curved, the diameter of arc more than the external diameter of boiler water-wall tube (5), makes the lower edge of the two side tube wall respectively with boiler water-wall tube back-fire side form tangent overlap joint；
The part (3) grey with gear to fire side of heat-conducting piece threadeds integral, the shape and structure of gear ash part is identical with described cooling piece, the upper limb of two curved walls of gear ash part forms tangent overlap joint with the boiler water-wall tube tube wall to fiery side, keeps off ash barrier being formed to fire side of water screen tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620153648.7U CN205449844U (en) | 2016-02-29 | 2016-02-29 | Self -cooling boiler high temperature heat flow meter with ash blocking performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620153648.7U CN205449844U (en) | 2016-02-29 | 2016-02-29 | Self -cooling boiler high temperature heat flow meter with ash blocking performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205449844U true CN205449844U (en) | 2016-08-10 |
Family
ID=56605076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620153648.7U Expired - Fee Related CN205449844U (en) | 2016-02-29 | 2016-02-29 | Self -cooling boiler high temperature heat flow meter with ash blocking performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205449844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525288A (en) * | 2016-10-12 | 2017-03-22 | 北京遥测技术研究所 | Pure radiation heat flow sensor |
-
2016
- 2016-02-29 CN CN201620153648.7U patent/CN205449844U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525288A (en) * | 2016-10-12 | 2017-03-22 | 北京遥测技术研究所 | Pure radiation heat flow sensor |
| CN106525288B (en) * | 2016-10-12 | 2018-10-09 | 北京遥测技术研究所 | A kind of pure radiant heat flux sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20190228 |