CN203494840U - Online circulation cleaning device for anti-corrosion flue gas waste heat exchanger - Google Patents
Online circulation cleaning device for anti-corrosion flue gas waste heat exchanger Download PDFInfo
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- CN203494840U CN203494840U CN201320416737.2U CN201320416737U CN203494840U CN 203494840 U CN203494840 U CN 203494840U CN 201320416737 U CN201320416737 U CN 201320416737U CN 203494840 U CN203494840 U CN 203494840U
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Abstract
The utility model discloses an online circulation cleaning device for an anti-corrosion flue gas waste heat exchanger, and belongs to the technical field of energy saving in flue gas waste heat recovery. The online circulation cleaning device is formed in a way that a cleaning agent spray device, a cleaning agent and ash collecting and separating device, a heat exchanger running and cleaning function switching baffle plate and a cleaning agent circulating pump are connected by adopting pipelines. Due the adoption of an integrated design, a complete set of cleaning devices and a heat exchange device are integrated into a whole. The heat exchanger running and cleaning function switching baffle plate can be manually or automatically controlled, manual or automatic switching of two modes of flue gas waste heat recovery running and flue gas heat exchanger cleaning can be realized, ash on the surface of the heat exchanger can be removed by utilizing a liquid cleaning agent under the situation that a heat exchanger main body and attached pipelines are not needed to the disassembled, the removed ash can be collected and separated through an ash hopper, the liquid cleaning agent can be recycled, and a disassembly-free online cleaning mode can be realized.
Description
Technical field
The utility model belongs to the field of energy-saving technology of flue gas waste heat recovery.Be particularly related to a kind of online circulation cleaning device for corrosion-resistant smoke gas afterheat heat exchanger.
Background technology
The smoke gas afterheat heat exchanger that is arranged in boiler back end ductwork is in operation and can produces dust stratification and scale formation, and this not only increases duct resistance, reduces heat exchanger efficiency, also may accelerate heated surface corrosion and then cause security incident.Conventional ash disposal mode is to use vibration soot blower or fixed, rotary and telescopic soot blower at present, and blowing medium is generally steam, compressed air or water, and these device maintenance workloads are large, and undesirable to the ash-cleaning effect being deposited on Gu Bi.Use the chemical cleaning mode effect of liquid ceanser better, but mostly be metallic recuperator for the heat exchanger of flue gas waste heat recovery, chemical easily causes that metallic recuperator burn into shortens heat exchanger service life.
For the corrosion-resistant flue gas waste heat recovery heat exchanger (applying for a patent separately) that uses the composites such as heat-conducting plastic, can remove black dirt by applied chemistry cleaning agent, therefore need a kind of cleaning device that uses liquid ceanser heat exchanger to carry out ash disposal scale removal, realize function of on-line cleaning, strengthening cleaning performance, simplifies cleaning process.
Utility model content
The object of the invention is for using chemical cleaning mode to mostly being the flue gas waste heat recovery heat exchanger of metal, chemical easily causes that metallic recuperator burn into shortens the heat exchanger deficiency in service life.A kind of online circulation cleaning device for corrosion-resistant smoke gas afterheat heat exchanger is provided, it is characterized in that: the online circulation cleaning device of described corrosion-resistant smoke gas afterheat heat exchanger collects separation equipment, heat exchanger operation and cleaning function switching dividing plate by cleaning agent sprinkling equipment, cleaning agent and black dirt and cleaning agent circulating pump adopts pipeline to connect to form; The basic structure of cleaning device is: above heat exchanger 1, arrange cleaning agent sprinkling equipment 2, at heat exchanger arranged beneath cleaning agent and black dirt, collect separation equipment 3; Between heat exchanger and cleaning agent sprinkling equipment and between heat exchanger and cleaning agent and black dirt collection separation equipment, heat exchanger operation and cleaning function switching dividing plate 4 are being set; In the outside of heat exchanger, by connecting pipe 8, connect successively cleaning agent and black dirt is collected filling opening 7, valve 5 and the cleaning agent sprinkling equipment of separation equipment 3, circulating pump 6, cleaning agent stoste, the online circulation cleaning device of complete.
Described heat exchanger adopts the material of resistance to flue gas corrosion to make, and makes material selection nylon, ABS, polypropylene, liquid crystal polymer or the polyphenylene sulfide of heat exchanger.
In the filling opening of described cleaning agent stoste, filter is set.
The design of described sprinkling equipment must meet makes cleaning agent along heat exchanger fin surface toward dirty.
Described dividing plate has automatic or manual opening and closing structure.
Described cleaning agent sprinkling equipment adopts pipe split to be close to two surfaces, fin clearance place and is arranged side by side, or adopt pipe perforate to be close to two surfaces, fin clearance place to be arranged side by side, or adopt pipe to connect small nozzle layout of sprinkler at two fin clearance places, to guarantee that cleaning agent flows along fin surface.
Described cleaning agent and black dirt are collected separation equipment, valve, circulating pump and connecting pipe and are selected CPVC or ABS material to make.
Described cleaning agent sprinkling equipment adopts circular ring type cloth liquid transposition, and the external diameter of ring tube equals the distance between the adjacent fins apparent surface of heat exchanger, and cleaning fluid directly reaches fin surface after ring tube flows out.
The beneficial effects of the utility model are by special dividing plate, to realize the switching of " exchanger heat recovery " and " heat exchanger cleaning " two kinds of patterns, while cleaning heat exchanger, without the flue system at heat exchanger and place thereof, dismantle; Use liquid ceanser to remove dust and the dirt accumulating in flue gas waste heat recovery process, cleaning performance is good, and cleaning efficiency is high; Cleaning agent flows along the fin surface that need to remove black dirt, the cleaning agent flow that minimizing is fallen by space between fin, thus the circular flow of cleaning agent can be reduced, recovery and rinsing agent, recycle, these black dirts and black dirt solution can be used as building materials, industrial chemicals etc. and realize recycling of material.
Accompanying drawing explanation
Fig. 1 is the operational system sketch of the online circulation cleaning device of corrosion-resistant flue gas waste heat recovery heat exchanger.
Fig. 2 is the 3-D view of the online circulation cleaning device of corrosion-resistant flue gas waste heat recovery heat exchanger.
Fig. 3 a-Fig. 3 b is the liquid distributor schematic diagram of the online circulation cleaning device of corrosion-resistant flue gas waste heat recovery heat exchanger.
The specific embodiment
The utility model provides a kind of online circulation cleaning device for corrosion-resistant smoke gas afterheat heat exchanger.Below in conjunction with accompanying drawing, embodiment of the present utility model is described.Fig. 1-2 is depicted as the structural representation of the online circulation cleaning device of corrosion-resistant flue gas waste heat recovery heat exchanger.In figure, arrange cleaning agent sprinkling equipment 2 above heat exchanger 1, the design of sprinkling equipment must meet makes cleaning agent along heat exchanger fin surface toward dirty.At heat exchanger arranged beneath cleaning agent and black dirt, collect separation equipment 3, at cleaning agent and black dirt, collect separation equipment 3 bottoms layout fouling dust stratification precipitation outlets, upper side layout cleaning fluid circulation extraction opening; Between heat exchanger and cleaning agent sprinkling equipment and between heat exchanger and cleaning agent and black dirt collection separation equipment, heat exchanger operation and cleaning function switching dividing plate 4 are being set; In the outside of heat exchanger, by connecting pipe 8, connected successively cleaning agent and black dirt collect in the filling opening 7(filling opening of separation equipment 3, circulating pump 6, cleaning agent stoste filter is set), valve 5 and cleaning agent sprinkling equipment, the online circulation cleaning device of complete.Described cleaning agent sprinkling equipment adopts pipe fluting to be close to two surfaces, fin clearance place and is arranged side by side, or adopt pipe perforate to be close to two surfaces, fin clearance place to be arranged side by side, or adopt pipe to connect small nozzle layout of sprinkler at two fin clearance places, to guarantee that cleaning agent flows along fin surface.Described cleaning agent and black dirt are collected separation equipment, valve, circulating pump and connecting pipe and are selected CPVC or ABS material to make.
Fig. 3 a-Fig. 3 b is the schematic diagram of two kinds of liquid distributors.Wherein, Fig. 3 a is cleaning agent sprinkling equipment 2 " pipe split " liquid distributor, the outer tube diameter of pipe equals the centre-to-centre spacing of the adjacent fins 9 of heat exchanger 1, in pipe 10 and fin 1 contact position, cracks 11, directly reaches fin 1 surface after cleaning fluid is flowed out 11 from cracking; Fig. 3 b is cleaning agent sprinkling equipment 2 " circular ring type " cloth liquid transposition, and the external diameter of ring tube 12 equals the distance between adjacent fins 9 apparent surfaces of heat exchanger 1, and cleaning fluid directly reaches fin 9 surfaces after ring tube 12 flows out.
Operation principle of the present invention is: during duty at smoke gas afterheat heat exchanger in recuperation of heat, heat exchanger operation and cleaning function switch dividing plate 4 closes, form the upper and lower surface of heat exchanger fume side passage, valve 5 and circulating pump 6 are in closed condition, now flue gas flows between the fin of corrosion-resistance heat exchanger 1, cooling medium flows in base tube, reaches reduction flue-gas temperature, improves the object of boiler operating efficiency.
After 1 operation a period of time, all can there is ash deposit and slag buildup phenomenon in various degree at fin and base tube surface in corrosion-resistance heat exchanger, now should clean heat transmission equipment.During cleaning, stop flowing of the interior cooling medium of flue gas and Tube Sheet of Heat Exchanger, open operation and cleaning function and switch dividing plate 4, dividing plate can automatic or manual opening and closing.By the cleaning agent sprinkling equipment 2 that is arranged in fin top, to fin surface, spray cleaning fluid, cleaning agent makes dust stratification and fouling peel off from fin surface, with cleaning agent, by Action of Gravity Field, flow into cleaning agent and black dirt collection separation equipment afterwards, black dirt precipitates rear and cleaning agent layering, the cleaning fluid that is positioned at upper strata is recycled pump 6 and extracts out, by connecting pipe 8, is again conveyed in cleaning agent sprinkling equipment 2 and is recycled.In cleaning process, a part of chemical and black dirt react and consume, and for guaranteeing or maintaining cleaning performance, can in pilot process, re-inject cleaning fluid by the filling opening 7 by cleaning agent stoste.After cleaning finishes, all pipe-line equipments of stopping transport, by fouling dust stratification sediment and residue cleaning agent, the sewage draining exit below cleaning agent and black dirt collection separation equipment 3 is got rid of.Material selection nylon, ABS, polypropylene, liquid crystal polymer or the polyphenylene sulfide etc. of making heat exchanger, heat exchanger shell inner filling material is at least one in the Heat Conduction Materials such as graphite, carbon fiber, thermal conductive ceramic powder, metal dust and metal oxide powder.
The material relating in above-mentioned example and equipment appearance and form are only the utility model patent of explaining; but not the utility model is limited; in the protection domain of spirit of the present utility model and claim; the modification that the utility model is made and change, all fall into protection domain of the present utility model.
Claims (8)
1. for an online circulation cleaning device for corrosion-resistant smoke gas afterheat heat exchanger, it is characterized in that: the online circulation cleaning device of described corrosion-resistant smoke gas afterheat heat exchanger collects separation equipment, heat exchanger operation and cleaning function switching dividing plate by cleaning agent sprinkling equipment, cleaning agent and black dirt and cleaning agent circulating pump adopts pipeline to connect to form; The basic structure of cleaning device, for arrange cleaning agent sprinkling equipment above heat exchanger, is collected separation equipment at heat exchanger arranged beneath cleaning agent and black dirt; Between heat exchanger and cleaning agent sprinkling equipment and between heat exchanger and cleaning agent and black dirt collection separation equipment, heat exchanger operation and cleaning function switching dividing plate are being set; In the outside of heat exchanger, by connecting pipe, connect successively cleaning agent and black dirt is collected filling opening, valve and the cleaning agent sprinkling equipment of separation equipment, circulating pump, cleaning agent stoste, the online circulation cleaning device of complete.
2. according to claim 1 for the online circulation cleaning device of corrosion-resistant smoke gas afterheat heat exchanger, it is characterized in that: described heat exchanger materials is selected nylon, ABS, polypropylene, liquid crystal polymer or polyphenylene sulfide.
3. according to claim 1 for the online circulation cleaning device of corrosion-resistant smoke gas afterheat heat exchanger, it is characterized in that: in the filling opening of described cleaning agent stoste, filter is set.
4. according to claim 1 for the online circulation cleaning device of corrosion-resistant smoke gas afterheat heat exchanger, it is characterized in that: described cleaning agent and black dirt are collected separation equipment, valve, circulating pump and connecting pipe and selected CPVC or ABS material to make.
5. according to claim 1 for the online circulation cleaning device of corrosion-resistant smoke gas afterheat heat exchanger, it is characterized in that: described dividing plate has automatic or manual opening and closing structure.
6. according to claim 1 for the online circulation cleaning device of corrosion-resistant smoke gas afterheat heat exchanger, it is characterized in that: described cleaning agent sprinkling equipment adopts pipe split to be close to two surfaces, fin clearance place and is arranged side by side, or adopt pipe perforate to be close to two surfaces, fin clearance place to be arranged side by side, or adopt pipe to connect small nozzle layout of sprinkler at two fin clearance places, to guarantee that cleaning agent flows along fin surface.
7. the online circulation cleaning device for corrosion-resistant smoke gas afterheat heat exchanger according to claim 1, it is characterized in that: described cleaning agent sprinkling equipment adopts annulus tubular type cloth liquid transposition, the external diameter of ring tube equals the distance between the adjacent fins apparent surface of heat exchanger, and cleaning fluid directly reaches fin surface after ring tube flows out.
8. according to claim 1 for the online circulation cleaning device of corrosion-resistant smoke gas afterheat heat exchanger, it is characterized in that: described cleaning agent and black dirt are collected separation equipment bottom and arranged fouling dust stratification precipitation outlet, upper side layout cleaning fluid circulation extraction opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416737.2U CN203494840U (en) | 2013-07-12 | 2013-07-12 | Online circulation cleaning device for anti-corrosion flue gas waste heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416737.2U CN203494840U (en) | 2013-07-12 | 2013-07-12 | Online circulation cleaning device for anti-corrosion flue gas waste heat exchanger |
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| CN203494840U true CN203494840U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320416737.2U Expired - Fee Related CN203494840U (en) | 2013-07-12 | 2013-07-12 | Online circulation cleaning device for anti-corrosion flue gas waste heat exchanger |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595916A (en) * | 2014-11-27 | 2015-05-06 | 中国石油天然气股份有限公司 | Method for cleaning accumulated ash of convection section fins of steam-injection boiler |
| CN104785466A (en) * | 2015-05-05 | 2015-07-22 | 武汉鑫丞科技有限公司 | Automatic online cleaning system and method of intelligent circulating cooling water heat exchanger |
| CN105071699A (en) * | 2015-08-06 | 2015-11-18 | 江苏嘉德宏益环保节能科技有限公司 | Power generation device employing flue thermal energy |
| CN107560494A (en) * | 2017-08-31 | 2018-01-09 | 安徽省格致绿色建筑设计有限公司 | A kind of On Line Foul Removing Technology device |
| CN113137868A (en) * | 2021-05-28 | 2021-07-20 | 瀚能(苏州)节能科技有限公司 | Heat exchanger with spraying and cleaning functions |
| CN116067215A (en) * | 2023-04-06 | 2023-05-05 | 厦门铭光能源科技有限公司 | Anti deposition flue gas waste heat recovery device |
-
2013
- 2013-07-12 CN CN201320416737.2U patent/CN203494840U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595916A (en) * | 2014-11-27 | 2015-05-06 | 中国石油天然气股份有限公司 | Method for cleaning accumulated ash of convection section fins of steam-injection boiler |
| CN104595916B (en) * | 2014-11-27 | 2017-01-25 | 中国石油天然气股份有限公司 | Method for cleaning accumulated ash of convection section fins of steam-injection boiler |
| CN104785466A (en) * | 2015-05-05 | 2015-07-22 | 武汉鑫丞科技有限公司 | Automatic online cleaning system and method of intelligent circulating cooling water heat exchanger |
| CN105071699A (en) * | 2015-08-06 | 2015-11-18 | 江苏嘉德宏益环保节能科技有限公司 | Power generation device employing flue thermal energy |
| CN105071699B (en) * | 2015-08-06 | 2017-10-20 | 安溪县桃舟大富山林茶场 | A kind of flue heat generating device |
| CN107560494A (en) * | 2017-08-31 | 2018-01-09 | 安徽省格致绿色建筑设计有限公司 | A kind of On Line Foul Removing Technology device |
| CN113137868A (en) * | 2021-05-28 | 2021-07-20 | 瀚能(苏州)节能科技有限公司 | Heat exchanger with spraying and cleaning functions |
| CN116067215A (en) * | 2023-04-06 | 2023-05-05 | 厦门铭光能源科技有限公司 | Anti deposition flue gas waste heat recovery device |
| CN116067215B (en) * | 2023-04-06 | 2023-06-02 | 厦门铭光能源科技有限公司 | Anti deposition flue gas waste heat recovery device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20190712 |
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| CF01 | Termination of patent right due to non-payment of annual fee |