CN206846778U - A kind of air preheater - Google Patents
A kind of air preheater Download PDFInfo
- Publication number
- CN206846778U CN206846778U CN201720616175.4U CN201720616175U CN206846778U CN 206846778 U CN206846778 U CN 206846778U CN 201720616175 U CN201720616175 U CN 201720616175U CN 206846778 U CN206846778 U CN 206846778U
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- CN
- China
- Prior art keywords
- heat exchanger
- flue gas
- air
- air inlet
- header
- 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.)
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Links
- 239000003546 flue gas Substances 0.000 claims abstract description 69
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 65
- 230000007306 turnover Effects 0.000 claims abstract description 22
- 239000000428 dust Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 239000007789 gas Substances 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 6
- 238000013517 stratification Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000001172 regenerating effect Effects 0.000 description 5
- 239000000779 smoke Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Air Supply (AREA)
Abstract
The utility model discloses a kind of air preheater, including the heat exchanger shell with heat exchange cabin, there are at least two distinguished and admirable roads in the heat transfer cabin room, and heat exchanger shell both ends are respectively arranged with the air inlet header corresponding with the distinguished and admirable road, outlet header, there are some vertically arranged heat exchanger tubes in heat transfer cabin room, and the flue gas air inlet header that can be connected with heat exchanger tube is provided at both ends with the top of heat exchanger shell, flue gas outlet header, the heat exchanger shell bottom and center top are provided with the flue gas turnover room that can be connected with heat exchanger tube, and the flue gas air inlet header, flue gas turnover room, heat exchanger tube and flue gas outlet header form one and may be such that the heat exchanger channels that flue gas direction is repeatedly turned to.The utility model is in the confined space, you can reduces air preheater metal consumption, reduces equipment manufacturing cost, also solve the problem that the problems such as swinging control preheater leaks out, dust stratification blocks, and ensure effective recuperation of heat effect, exhaust gas temperature is reduced, there are certain dust removing effects.
Description
Technical field
A kind of air preheater is the utility model is related to, belongs to energy-conserving and environment-protective technical fiel.
Background technology
In recent years, in the case where production background environmentally friendly again should be saved, swinging is used in coal fired boiler of power plant unit
After air preheater, the big inadequate natural endowment of its air leak rate of air curtain is exposed it is obvious that but using traditional light pipe regenerative air heater
There is also the shortcomings that arrangement space-consuming is big, metal consumption is big, at the same no matter Conventional optical tube regenerative air heater or revolution
Regenerative air heater all has that dust stratification blocks and the higher operation diseconomy of delivery temperature.
How can both be arranged in the confined space of existing boiler tail heat exchanger, and can solves heat exchanger air leakage, product
The problems such as ash blocks, metal consumption is big, high fume temperature, it is the skill for being badly in need of solving in terms of current thermal power plant is produced with survival and development
Art problem.
The content of the invention
For above-mentioned weak point of the prior art, the utility model aims to provide a kind of air preheater, limited
Arrangement space in, you can reduce air preheater metal consumption, reduce equipment investment cost, also solve the problem that swinging control is pre-
The problems such as hot device leaks out, dust stratification blocks, and ensure effective recuperation of heat effect, exhaust gas temperature is reduced, there is certain dedusting to imitate
Fruit.
To achieve these goals, the technical solution of the utility model：A kind of air preheater, including with heat exchange cabin
Heat exchanger shell, there are at least two distinguished and admirable roads in the heat transfer cabin room, and the heat exchanger shell both ends are respectively arranged with
The air inlet header corresponding with the distinguished and admirable road, outlet header, it is characterised in that：Have in the heat transfer cabin room some vertically arranged
Heat exchanger tube, and be provided at both ends with the top of the heat exchanger shell can be connected with the heat exchanger tube flue gas air inlet header,
Flue gas outlet header, the heat exchanger shell bottom and center top are provided with the flue gas turnover that can be connected with the heat exchanger tube
Room, and the flue gas air inlet header, flue gas turnover room, heat exchanger tube and flue gas outlet header form one and may be such that the progress of flue gas direction is more
The heat exchanger channels of secondary steering.
Further, the heat exchanger tube uses ribbed pipe inside and outside three-dimensional, wherein, the body inside and outside wall of ribbed pipe inside and outside the three-dimensional
On be provided with some three-dimensional rib plates.
Further, the distinguished and admirable road includes First air runner, the Secondary Air runner being set up in parallel, and this is once distinguished and admirable
Road, Secondary Air runner are separated by the heat exchange cabin by air baffle；The air inlet header includes being located at the heat exchanger
Housing the same side and be connected respectively with the First air runner, Secondary Air runner First air air inlet header, Secondary Air air inlet
Header, the outlet header include located at the heat exchanger shell opposite side and respectively with the First air runner, Secondary Air runner
First air outlet header, the Secondary Air outlet header being connected；The flue gas air inlet header, flue gas outlet header and flue gas turnover
Room by flue gas divides into two parts, and the heat exchanger tube on the two parts and the First air runner, Secondary Air runner
Corresponding connection.
Further, the flue gas turnover room bottom in the heat exchanger shell bottom is provided with ash bucket, the ash bucket
Quantity be at least one.
Further, the heat exchanger shell bottom is provided with support skirt.
The beneficial effects of the utility model：Pass through the layout of heat exchanger tube in heat exchanger shell and heat transfer cabin room so that having
In the arrangement space of limit, you can reduce air preheater metal consumption, reduce equipment investment cost, also solve the problem that swinging control
The problems such as preheater leaks out, dust stratification blocks, and ensure effective recuperation of heat effect, exhaust gas temperature is reduced, there is certain dedusting
Effect.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model；
Fig. 2 is A direction views in Fig. 1.
In accompanying drawing, 1- flue gas air inlet headers, 2- flue gas outlet headers, 3- heat exchanger shells, 4- Secondary Air air inlet headers, 5-
First air air inlet header, 6- Secondary Air outlet headers, 7- First air outlet headers, 8- flue gases turnover room, 9- support skirts, 10-
Heat exchanger tube, 11- air baffles, 12- flue gas demarcation strips, 13- ash buckets, 14- heat exchange cabin；A- heat smoke imports, b- cold flue gas
Outlet, the cold secondary air inlets of c-, the cold wind inlet of d-, the hot secondary air inlets of e-, the outlet of f- heat primary airs, g- ash discharging holes.
Embodiment
The utility model is further described with reference to specific embodiment and accompanying drawing.
A kind of air preheater described as shown in Figure 1, Figure 2, it includes the heat exchanger shell 3 with heat exchange cabin 14, the heat exchange
There are at least two distinguished and admirable roads in cabin 14, and the both ends of heat exchanger shell 3 are respectively arranged with the air inlet corresponding with the distinguished and admirable road
Header, outlet header, heat exchange have some vertically arranged heat exchanger tubes 10 in cabin 14, and at the top both ends of heat exchanger shell 3
It is provided with the flue gas air inlet header 1 that can be connected with heat exchanger tube 10, flue gas outlet header 2, the bottom of heat exchanger shell 3 and centre
Top be provided with can be connected with heat exchanger tube 10 flue gas turnover room 8, and the flue gas air inlet header 1, flue gas turnover room 8, change
Heat pipe 10 and flue gas outlet header 2 form one and may be such that the heat exchanger channels that flue gas direction is repeatedly turned to.
Here, flue gas air inlet header 1, flue gas outlet header 2, flue gas turnover room 8 are attached with heat exchanger tube 10 respectively, can
Directly according to the length of heat exchanger shell 3 or the arrangement of heat exchanger tube 10, to specifically to set flue gas air inlet header 1, flue gas goes out
The concrete structure and its connection configuration between heat exchanger tube 10 of gas header 2 and flue gas turnover room 8, cause the flue gas to enter on the whole
Gas header 1, flue gas outlet header 2, flue gas turnover room 8 and heat exchanger tube 10 form a heat exchanger channels, and the heat exchanger channels are exchanging heat
Repeatedly turnover is formed in cabin 14, to carry out heat exchange process as far as possible, realizes the full utilization of heat energy.
This example is illustrated using distinguished and admirable road as twice, and distinguished and admirable road includes First air runner, the Secondary Air runner being set up in parallel,
And the First air runner, Secondary Air runner are separated by the cabin 14 that exchanges heat by air baffle 11；Air inlet header, which includes being located at, to be changed
Hot the same side of the device housing 3 and First air air inlet header 5, the Secondary Air that are connected respectively with First air runner, Secondary Air runner enter
Gas header 4, outlet header include located at the opposite side of heat exchanger shell 3 and are connected respectively with the First air runner, Secondary Air runner
Logical First air outlet header 7, Secondary Air outlet header 6；Flue gas air inlet header 1, flue gas outlet header 2 and flue gas turnover room 8
Two parts are separated into by flue gas demarcation strip 12, and the two parts and the heat exchanger tube 10 on First air runner, Secondary Air runner are right
It should connect.
Specifically, medium is heat exchange thermal medium in heat exchanger tube 10, and the thermal medium can be flue gas, or hot-air,
And the medium to exchange heat in cabin 14 is cold air.It that is to say in this example that there is heat smoke import a, flue gas on flue gas air inlet header 1
There is cold flue gas outlet b on outlet header 2, there is cold secondary air inlet c, First air air inlet header 5 on Secondary Air air inlet header 4
It is upper that there is a cold wind inlet d, there is hot Secondary Air outlet e on Secondary Air outlet header 6, have on First air outlet header 7
Heat primary air exports f.Cold Secondary Air and cold First air enter from cold secondary air inlet c, the cold First air on heat exchanger shell 3 respectively
Mouth d enters to heat exchange cabin 14, then exports e, heat primary air outlet f outflows by the hot Secondary Air on heat exchanger shell 3；And heat is situated between
Matter such as heat smoke by heat smoke import a enter heat exchanger tube 10 in, through flue gas turnover room 8 formed flue gas repeatedly turn to after again by
Cold flue gas outlet b outflows, so as to realize heat exchange.
Heat exchanger tube 10 uses ribbed pipe inside and outside three-dimensional, wherein, it is provided with inside and outside the three-dimensional on the body inside and outside wall of ribbed pipe
Some three-dimensional rib plates.Meanwhile the flue gas turnover bottom of room 8 in the bottom of heat exchanger shell 3 is provided with ash bucket 13, and the ash discharge
The quantity of bucket is at least one, has ash discharging hole g on the ash bucket 13.Vertical or vertically arranged three are used by heat exchanger tube 10
Ribbed pipe inside and outside dimension, the dust stratification possibility of heat exchanger is greatly reduced, while the flue gas turnover room 8 of the bottom of heat exchanger shell 3 has
Certain gravitational dust collection characteristic, when flue gas flows through flue gas turnover room 8, coarse powder dirt will be fallen into ash bucket 13, and by ash discharging hole g
Discharge, plays certain pre- dedusting effect.Meanwhile ribbed pipe heat transfer technology inside and outside three-dimensional is employed, it can be arranged with identical heat exchanger
In space, more traditional light pipe regenerative air heater greatly improves heat exchanger intensity, is empty so as to save cloth as much as possible
Between and reduce metal consumption, and this programme heat exchanger uses the pattern of more heat exchange cabins and verticals, can utilize power station
Boiler back end ductwork and across the lower area lateral arrangement heat exchanger of denitration, play the effect for making full use of arrangement space.
Finally, in order to ensure the structure stability of whole heat exchanger, support skirt 9 is provided with the bottom of heat exchanger shell 3.
Flue gas demarcation strip 12 and air baffle 11 are provided with the utility model in heat exchanger shell 3, it can be ensured that secondary
Wind and First air are separately heated, while using the heat exchanger 10 of tubular structure, eliminate rotary regenerative air heater hot blast to flue gas
The problem of leakage.
The technical scheme provided above the utility model embodiment is described in detail, used herein specifically
Individual example is set forth to the principle and embodiment of the utility model embodiment, and the explanation of above example is only applicable to help
Assistant solves the principle of the utility model embodiment；Meanwhile for those of ordinary skill in the art, implement according to the utility model
Example, the there will be changes in embodiment and application, in summary, this specification content should not be construed as
To limitation of the present utility model.
Claims (5)
1. a kind of air preheater, including the heat exchanger shell (3) with heat exchange cabin (14), heat exchange cabin (14) is interior to be had
Have at least two distinguished and admirable roads, and the heat exchanger shell (3) both ends be respectively arranged with the air inlet header corresponding with the distinguished and admirable road,
Outlet header, it is characterised in that：There are some vertically arranged heat exchanger tubes (10) in heat exchange cabin (14), and changed described
The flue gas air inlet header (1) that can be connected with the heat exchanger tube (10), flue gas outlet connection are provided at both ends with the top of hot device housing (3)
Case (2), heat exchanger shell (3) bottom and center top are provided with the flue gas turnover that can be connected with the heat exchanger tube (10)
Room (8), and the flue gas air inlet header (1), flue gas turnover room (8), heat exchanger tube (10) and flue gas outlet header (2) form one and can made
Obtain the heat exchanger channels that flue gas direction is repeatedly turned to.
A kind of 2. air preheater according to claim 1, it is characterised in that：The heat exchanger tube (10) is using in three-dimensional
Outer ribbed pipe, wherein, it is provided with some three-dimensional rib plates on the body inside and outside wall of ribbed pipe inside and outside the three-dimensional.
A kind of 3. air preheater according to claim 2, it is characterised in that：The distinguished and admirable road includes one be set up in parallel
Secondary distinguished and admirable road, Secondary Air runner, and the First air runner, Secondary Air runner pass through air baffle by heat exchange cabin (14)
(11) separate；The air inlet header include located at the heat exchanger shell (3) the same side and respectively with the First air runner,
First air air inlet header (5) that Secondary Air runner is connected, Secondary Air air inlet header (4), the outlet header include being located at institute
State heat exchanger shell (3) opposite side and the First air outlet header being connected respectively with the First air runner, Secondary Air runner
(7), Secondary Air outlet header (6)；The flue gas air inlet header (1), flue gas outlet header (2) and flue gas turnover room (8) by
Flue gas demarcation strip (12) is separated into two parts, and the two parts and the heat exchanger tube on the First air runner, Secondary Air runner
(10) corresponding connection.
A kind of 4. air preheater according to claim 3, it is characterised in that：In the heat exchanger shell (3) bottom
Flue gas turnover room (8) bottom be provided with ash bucket (13), the quantity of the ash bucket is at least one.
A kind of 5. air preheater according to claim 3, it is characterised in that：Heat exchanger shell (3) bottom is set
There is support skirt (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720616175.4U CN206846778U (en) | 2017-05-31 | 2017-05-31 | A kind of air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720616175.4U CN206846778U (en) | 2017-05-31 | 2017-05-31 | A kind of air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206846778U true CN206846778U (en) | 2018-01-05 |
Family
ID=60798489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720616175.4U Active CN206846778U (en) | 2017-05-31 | 2017-05-31 | A kind of air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206846778U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063161A (en) * | 2021-04-16 | 2021-07-02 | 国家电投集团重庆合川发电有限公司 | Boiler flue gas waste heat recovery system of thermal power factory |
| WO2021179928A1 (en) * | 2020-03-11 | 2021-09-16 | 广东中鹏热能科技有限公司 | Self-cleaning air preheater |
| CN113624033A (en) * | 2021-08-23 | 2021-11-09 | 中国新型建材设计研究院有限公司 | Tubular heat exchanger for recovering waste heat of thistle board drying process |
-
2017
- 2017-05-31 CN CN201720616175.4U patent/CN206846778U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021179928A1 (en) * | 2020-03-11 | 2021-09-16 | 广东中鹏热能科技有限公司 | Self-cleaning air preheater |
| CN113063161A (en) * | 2021-04-16 | 2021-07-02 | 国家电投集团重庆合川发电有限公司 | Boiler flue gas waste heat recovery system of thermal power factory |
| CN113624033A (en) * | 2021-08-23 | 2021-11-09 | 中国新型建材设计研究院有限公司 | Tubular heat exchanger for recovering waste heat of thistle board drying process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201013 Address after: 400033, Chongqing District, Shapingba Town, wellhead village, tile bamboo Fort Society Patentee after: Chongqing Guangya heat exchange equipment Co., Ltd Address before: 404100 Longshan Road, 25 (Industrial Park), Pu Lu Street office, Tongliang County, Chongqing Patentee before: CHONGQING SHANGSHUN HEAT TRANSFER EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220223 Address after: 402460 building 15, No. 5, Chuangxin Avenue, Changzhou street, Rongchang District, Chongqing Patentee after: Wang Jian Address before: 400033 wazhubao community, Jingkou village, Jingkou Town, Shapingba District, Chongqing Patentee before: Chongqing Guangya heat exchange equipment Co.,Ltd. |