CN206488665U - A kind of flue gas heat-exchange unit - Google Patents
A kind of flue gas heat-exchange unit Download PDFInfo
- Publication number
- CN206488665U CN206488665U CN201720167405.3U CN201720167405U CN206488665U CN 206488665 U CN206488665 U CN 206488665U CN 201720167405 U CN201720167405 U CN 201720167405U CN 206488665 U CN206488665 U CN 206488665U
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- Prior art keywords
- end cap
- cavity
- heat
- flue gas
- gas outlet
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000003546 flue gas Substances 0.000 title claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000000779 smoke Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a kind of flue gas heat-exchange unit, it includes cavity, first end cap, second end cap, some heat exchanger tubes and the support for supporting cavity, gas approach and exhanst gas outlet are provided with cavity, the first end cap and the second end cap are respectively equipped with cavity two ends, covered in first end provided with drain pipe and feed tube setting up and down, between the first end cap and respective chamber end, an orifice plate is equipped between second end cap and respective chamber end, heat exchanger tube is interspersed between the corresponding through hole of two orifice plates, helical flow passage is provided with feed liquor tube wall, one end of helical flow passage is connected by pipeline with exhanst gas outlet.Advantage：Cryogenic media heat exchange in the flue gas and feed tube that exhanst gas outlet is discharged, can reduce the smoke problem finally discharged, and then reach the purpose for improving smoke heat energy utilization rate while preheating cryogenic media；And cryogenic media it is preheated after enter back into cavity and exchanged heat, heat exchange efficiency can be improved.
Description
Technical field：
The utility model is related to flue gas waste heat recovery technical field, relates in particular to a kind of flue gas heat-exchange unit.
Background technology：
The rich coal resources of China, thermal power generation still has great potential.The flue gas produced after boiler combustion, according to boiler
The difference of form and coal-fired species, its temperature is general between 110 DEG C~170 DEG C.Pot is typically reclaimed using flue gas heat-exchange unit
Heat in the flue gas that fire grate goes out, as shown in figure 1, common flue gas heat-exchange unit include cavity 1, the first end cap 2, the second end cap 3,
Some heat exchanger tubes 4 and the support 5 for supporting cavity 1, are provided with gas approach 1.1 and exhanst gas outlet 1.2 on cavity 1,
The two ends of cavity 1 are respectively equipped with the first end cap 2 and the second end cap 3, the feed tube 7 of upper setting are provided with the first end cap 2, second
End cap 3 is provided with drain pipe 6, between the first end cap 2 and the end of respective chamber 1, the second end cap 3 and the end of respective chamber 1 it
Between be equipped with an orifice plate 8, be interspersed with heat exchanger tube 4 between the corresponding through hole 8.1 of two orifice plates 8；The flue gas of boiler discharge is removed
Enter cavity 1 through gas approach 1.1 after dirt, cryogenic media is changed through feed tube 7 into each heat exchanger tube 4 with the flue gas in cavity 1
Temperature is raised after heat, and is discharged through drain pipe 6, is discharged after flue-gas temperature reduction through exhanst gas outlet, and then reach recovered flue gas temperature
The purpose of degree.But, there is problems with above-mentioned heat exchanger：1st, the flue-gas temperature discharged through exhanst gas outlet 1.2 remains to reach 30-
50 DEG C, if being directly discharged in air still cause the waste of heat energy, heat energy recovery rate is low；2nd, boiler is discharged flue gas and flow through
The cryogenic media of heat exchanger tube 4 residence time in cavity 1 is short, exchanges heat insufficient, causes heat utilization ratio low.
Utility model content：
The purpose of this utility model is to provide a kind of heat recovery rate high flue gas heat-exchange unit.
The utility model is implemented by following technical scheme：A kind of flue gas heat-exchange unit, it includes cavity, the first end cap, second
End cap, some heat exchanger tubes and the support for supporting the cavity, are provided with gas approach and exhanst gas outlet on the cavity,
First end cap and second end cap are respectively equipped with the cavity two ends, is covered in the first end provided with setting up and down
Drain pipe and feed tube, between first end cap and the corresponding cavity end, second end cap and correspondence it is described
An orifice plate is equipped between cavity end, the heat exchanger tube is interspersed between the corresponding through hole of two orifice plates, in institute
Feed liquor tube wall is stated provided with helical flow passage, the helical flow passage two ends are placed in through the feed liquor tube wall
Outside the feed tube；One end of the helical flow passage is connected by pipeline with the exhanst gas outlet.
Further, the first end cap inner horizontal between the feed tube and the drain pipe provided with first every
First cover internal is divided into hot-water cavity and cold water cavity setting up and down by plate, first dividing plate.
Further, horizontally disposed second partition, the second partition and described first are provided with the inside cavity
Dividing plate flushes setting；Described second partition one end and the orifice plate adjacent with second end cap are fixedly connected, and described second
Baffling passage is formed between the dividing plate other end and the orifice plate adjacent with first end cap；Adjacent with second end cap
The cavity bottom and top be respectively equipped with the gas approach and the exhanst gas outlet.
Advantage of the present utility model：1st, the cryogenic media heat exchange in the flue gas and feed tube that exhanst gas outlet is discharged, preheating
The flue-gas temperature finally discharged can be reduced while cryogenic media, and then reaches the purpose for improving smoke heat energy utilization rate；2nd, lead to
The flow that the first dividing plate and second partition extension cryogenic media and flue gas are set in cavity is crossed, and then both is fully exchanged heat,
The utilization rate of heat energy is improved, the purpose of high efficient heat exchanging is reached.
Brief description of the drawings：
Fig. 1 is flue gas heat-exchange unit structural representation in the prior art.
Fig. 2 is structural representation of the present utility model.
Cavity 1, gas approach 1.1, exhanst gas outlet 1.2, the first end cap 2, hot-water cavity 2.1, cold water cavity 2.2, the second end cap
3rd, heat exchanger tube 4, support 5, drain pipe 6, feed tube 7, orifice plate 8, through hole 8.1, helical flow passage 9, the first dividing plate 10, second
Dividing plate 11, baffling passage 12.
Embodiment：
As shown in Fig. 2 a kind of flue gas heat-exchange unit, it includes cavity 1, the first end cap 2, the second end cap 3, some heat exchanger tubes
4 and for supporting the support 5 of cavity 1, gas approach 1.1 and exhanst gas outlet 1.2 are provided with cavity 1, in the two ends of cavity 1 difference
Provided with the first end cap 2 and the second end cap 3, drain pipe 6 and feed tube 7 setting up and down are provided with the first end cap 2, in first end
An orifice plate 8 is equipped between lid 2 and the end of respective chamber 1, between the second end cap 3 and the end of respective chamber 1, in two orifice plates
Heat exchanger tube 4 is interspersed between 8 corresponding through holes 8.1；
The inner horizontal of the first end cap 2 between feed tube 7 and drain pipe 6 is provided with the first dividing plate 10, and the first dividing plate 10 will
It is divided into hot-water cavity 2.1 and cold water cavity 2.2 setting up and down inside first end cap 2, it is ensured that the medium before heat exchange and after heat exchange is each
Flow, be independent of each other；Each heat exchange through being connected with cold water cavity 2.2 after cryogenic media initially enters cold water cavity 2.2 through feed tube 7
Pipe 4 enters in the second end cap 3, and the medium in the second end cap 3 flow to hot-water cavity 2.1 through heat exchanger tube 4 corresponding with hot-water cavity 2.1
Discharged by drain pipe 6；
Horizontally disposed second partition 11 is provided with inside cavity 1, second partition 11 flushes setting with the first dividing plate 10；The
The one end of two dividing plate 11 and the orifice plate 8 adjacent with the second end cap 3 are fixedly connected, the other end of second partition 11 and with the phase of the first end cap 2
Baffling passage 12 is formed between adjacent orifice plate 8；Flue gas is respectively equipped with the bottom and top of the cavity 1 adjacent with the second end cap 3
Import 1.1 and exhanst gas outlet 1.2；
The high-temperature flue gas entered through gas approach 1.1 is flowed from the second end cap 3 to the direction of the first end cap 2, and cold water cavity 2.2
Interior medium is flowed after entering correspondence heat exchanger tube 4 from the first end cap 2 to the direction of the second end cap 3, i.e. the height of the lower section of second partition 11
Warm flue gas and the cryogenic media reverse flow in corresponding heat exchanger tube 4, can fully exchange heat；
The flue gas of the lower section of second partition 11 is reached after the orifice plate 8 at the first end cap 2, enters second partition through baffling passage 12
Inside the cavity 1 of 11 tops, then flowed, finally discharged through exhanst gas outlet 1.2 from the first end cap 2 to the direction of the second end cap 3, and
Medium in second end cap 3 is flowed after entering the heat exchanger tube 4 of the top of second partition 11 from the second end cap 3 to the direction of the first end cap 2,
That is the high-temperature flue gas of the top of second partition 11 fully exchanges heat with the cryogenic media reverse flow in corresponding heat exchanger tube 4；
Helical flow passage 9 is provided with the tube wall of feed tube 7, the two ends of helical flow passage 9 pass through the tube wall of feed tube 7
It is placed in outside feed tube 7；One end of helical flow passage 9 is connected by pipeline with exhanst gas outlet 1.2；Through exhanst gas outlet 1.2
The flue gas of discharge is exchanged heat into helical flow passage 9 with the cryogenic media in feed tube 7 by the road, in feed tube 7
Cryogenic media can absorb the fume afterheat in helical flow passage 9, on the one hand, the cryogenic media in feed tube 7 can be entered
Row preheating, and then improve the heat exchange efficiency of cryogenic media and high-temperature flue gas in cavity 1；On the other hand, flue gas can be fully absorbed
Waste heat, improves smoke heat energy utilization rate.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (3)
1. a kind of flue gas heat-exchange unit, it includes cavity, the first end cap, the second end cap, some heat exchanger tubes and described for supporting
The support of cavity, gas approach and exhanst gas outlet are provided with the cavity, described first is respectively equipped with the cavity two ends
End cap and second end cap, are covered provided with drain pipe and feed tube setting up and down, in the first end in the first end
Lid between the corresponding cavity end, second end cap and correspondingly between the cavity end be equipped with an orifice plate,
The heat exchanger tube is interspersed between the corresponding through hole of two orifice plates, it is characterised in that be provided with the feed liquor tube wall
Helical flow passage, the helical flow passage two ends are placed in outside the feed tube through the feed liquor tube wall；Institute
The one end for stating helical flow passage is connected by pipeline with the exhanst gas outlet.
2. a kind of flue gas heat-exchange unit according to claim 1, it is characterised in that the feed tube and the drain pipe it
Between the first end cap inner horizontal be provided with the first dividing plate, first cover internal is divided into by first dividing plate to be divided into
The hot-water cavity and cold water cavity put.
3. a kind of flue gas heat-exchange unit according to claim 2, it is characterised in that in the inside cavity provided with horizontally disposed
Second partition, the second partition flushes setting with first dividing plate；Described second partition one end and with second end
The adjacent orifice plate of lid is fixedly connected, between the second partition other end and the orifice plate adjacent with first end cap
Form baffling passage；Be respectively equipped with the bottom and top of the cavity adjacent with second end cap gas approach and
The exhanst gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720167405.3U CN206488665U (en) | 2017-02-23 | 2017-02-23 | A kind of flue gas heat-exchange unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720167405.3U CN206488665U (en) | 2017-02-23 | 2017-02-23 | A kind of flue gas heat-exchange unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206488665U true CN206488665U (en) | 2017-09-12 |
Family
ID=59763385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720167405.3U Active CN206488665U (en) | 2017-02-23 | 2017-02-23 | A kind of flue gas heat-exchange unit |
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| Country | Link |
|---|---|
| CN (1) | CN206488665U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793357A (en) * | 2019-12-11 | 2020-02-14 | 佛山市中瓷万丰陶瓷设备有限公司 | Pipeline type heat exchanger |
| CN110906737A (en) * | 2019-11-29 | 2020-03-24 | 湖州华利铝业有限公司 | Energy-saving waste heat utilization equipment for aluminum alloy production and processing |
| CN111664585A (en) * | 2020-06-10 | 2020-09-15 | 珠海格力电器股份有限公司 | Heat Exchanger and Water Heater |
| CN111780583A (en) * | 2020-06-05 | 2020-10-16 | 广东万和新电气股份有限公司 | a heat exchange device |
| CN114234254A (en) * | 2021-12-24 | 2022-03-25 | 李志军 | Exhaust device for RV stove |
-
2017
- 2017-02-23 CN CN201720167405.3U patent/CN206488665U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906737A (en) * | 2019-11-29 | 2020-03-24 | 湖州华利铝业有限公司 | Energy-saving waste heat utilization equipment for aluminum alloy production and processing |
| CN110793357A (en) * | 2019-12-11 | 2020-02-14 | 佛山市中瓷万丰陶瓷设备有限公司 | Pipeline type heat exchanger |
| CN111780583A (en) * | 2020-06-05 | 2020-10-16 | 广东万和新电气股份有限公司 | a heat exchange device |
| CN111664585A (en) * | 2020-06-10 | 2020-09-15 | 珠海格力电器股份有限公司 | Heat Exchanger and Water Heater |
| CN114234254A (en) * | 2021-12-24 | 2022-03-25 | 李志军 | Exhaust device for RV stove |
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Address after: 014010 rare earth Kokusai Hotel, 1803 rare earth hi tech Zone, the Inner Mongolia Autonomous Region, Baotou Patentee after: Inner Mongolia North control thermal power Co., Ltd Address before: 014010 rare earth Kokusai Hotel, 1803 rare earth hi tech Zone, the Inner Mongolia Autonomous Region, Baotou Patentee before: INNER MONGOLIA JUNENG HEAT ENERGY TECHNOLOGY Co.,Ltd. |