CN104482786A - Flue gas heat exchanger - Google Patents

Flue gas heat exchanger Download PDF

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Publication number
CN104482786A
CN104482786A CN201410777050.0A CN201410777050A CN104482786A CN 104482786 A CN104482786 A CN 104482786A CN 201410777050 A CN201410777050 A CN 201410777050A CN 104482786 A CN104482786 A CN 104482786A
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CN
China
Prior art keywords
heat exchanger
flue gas
heat
exchanger fin
cleaning
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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.)
Pending
Application number
CN201410777050.0A
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Chinese (zh)
Inventor
蒋正坤
田奎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEHENSTAR ENERGY TECHNOLOGY (SUZHOU) Co Ltd
Original Assignee
SEHENSTAR ENERGY TECHNOLOGY (SUZHOU) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SEHENSTAR ENERGY TECHNOLOGY (SUZHOU) Co Ltd filed Critical SEHENSTAR ENERGY TECHNOLOGY (SUZHOU) Co Ltd
Priority to CN201410777050.0A priority Critical patent/CN104482786A/en
Publication of CN104482786A publication Critical patent/CN104482786A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a flue gas heat exchanger, which comprises a shell, a plurality of heat exchange plate assemblies, a cleaner, a liquid inlet tube and a liquid outlet tube, wherein each heat exchange plate assembly is provided with a hollow cavity, the heat exchange plate assemblies are sequentially fixedly connected in parallel in the shell, the cleaner comprises a cleaning holder and a plurality of cleaning brushes, the cleaning brushes are fixed on the cleaning holder, and are respectively located in a corresponding gap between every two adjacent connected heat exchange plate assemblies, the cleaning holder drives the cleaning brushes to move in the gaps, the liquid inlet tube and the liquid outlet tube are respectively connected with the heat exchange plate assemblies, and the hollow cavities of the heat exchange plate assemblies, the liquid inlet tube and the liquid outlet tube are communicate with one another. Through such a mode, the flue gas heat exchanger thoroughly solves the problem that the heat exchange efficiency is reduced due to surface attachment after a flue gas heat exchanger is used for a period of time, and the trouble of manual disassembly and cleaning is avoided.

Description

A kind of flue gas heat-exchange unit
Technical field
The present invention relates to industrial smoke waste heat recovery and various gas and liquid heat exchange occasion, belong to field of environment protection equipment, particularly relate to a kind of flue gas heat-exchange unit.
Background technology
The flue gas waste heat recovery heat exchanger being usually used in industry at present has multiple, as finned tube exchanger, shell and tube exchanger, lamella heat exchanger etc., but more than applying during all kinds of heat exchanger, because containing dust impurity in flue gas, after operation a period of time, dust impurity easily adheres to and is deposited in heat exchanger interior surface, heat exchange efficiency is caused to reduce, have a strong impact on heat exchanger normally to use, and above all kinds of heat exchanger disassembly, cleaning are very difficult, some even cannot clean, the heat exchanger that can only more renew, and this causes the operation cost of enterprise to increase.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of flue gas heat-exchange unit carrying out automatic cleaning without the need to dismantling the dust impurity getting final product heat exchanger inside.
For solving the problems of the technologies described above, the invention provides a kind of flue gas heat-exchange unit, comprise: housing, multiple heat exchanger fin group, clearing apparatus, feed tube and drain pipe, described heat exchanger fin group is formed by stacking by least two heat exchanger plates, hollow cavity is provided with between described at least two heat exchanger plates, the inside being fixedly connected on described housing that described multiple heat exchanger fin group parallels successively, interval is provided with between two adjacent heat exchanger fin groups, described clearing apparatus comprises cleaning support and multiple brush sweeper, described brush sweeper is fixed on described cleaning support, multiple brush sweeper lays respectively in the interval between described two connected heat exchanger fin groups, described cleaning support drives described brush sweeper to move in the inside at described interval, described feed tube and drain pipe are connected with described heat exchanger fin group respectively, and the hollow cavity of described heat exchanger fin group, feed tube is connected with drain pipe.
In a preferred embodiment of the present invention, described feed tube is provided with multiple feed liquor arm, and described multiple feed liquor arm is connected with the hollow cavity of described heat exchanger fin group respectively.
In a preferred embodiment of the present invention, described drain pipe is provided with multiple fluid arm, and described multiple fluid arm is connected with the hollow cavity of described heat exchanger fin group respectively.
In a preferred embodiment of the present invention, described housing is provided with guide rail, and described cleaning support is provided with the pulley matched with described guide rail.
In a preferred embodiment of the present invention, described clearing apparatus also comprises Power Drive Unit, and described Power Drive Unit is connected with described cleaning support.
In a preferred embodiment of the present invention, described brush sweeper is stainless steel hairbrush.
The invention has the beneficial effects as follows: flue gas heat-exchange unit of the present invention thoroughly solves the problem causing heat exchange efficiency to reduce because of surface attachments after flue gas heat-exchange unit uses a period of time, eliminate the loaded down with trivial details of artificial unloading's cleaning, use manpower and material resources sparingly, improve the heat exchange efficiency of heat exchanger, extend the service life of heat exchanger, reduce replacement cost and the use cost of heat exchanger.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the perspective view of flue gas heat-exchange unit one of the present invention preferred embodiment;
Fig. 2 be in Fig. 1 A-A to cross-sectional schematic;
Fig. 3 is B place enlarged diagram in Fig. 2;
In accompanying drawing, the mark of each parts is as follows: 1, housing; 11, guide rail; 2, heat exchanger fin group; 21, heat exchanger plates; 22, hollow cavity; 23, interval; 31, support is cleaned; 32, brush sweeper; 33, pulley; 4, feed tube; 41, feed liquor arm; 5, drain pipe.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 to Fig. 3, the embodiment of the present invention comprises:
A kind of flue gas heat-exchange unit, comprise: housing 1, multiple heat exchanger fin group 2, clearing apparatus, feed tube 4 and drain pipe 5, described heat exchanger fin group 2 is formed by stacking by two heat exchanger plates 21, hollow cavity 22 is provided with between described two heat exchanger plates 21, the inside being fixedly connected on described housing 1 that described multiple heat exchanger fin group 2 parallels successively, interval 23 is provided with between two adjacent heat exchanger fin groups 2, described clearing apparatus comprises cleaning support 31 and multiple brush sweeper 32, described brush sweeper 32 is fixed on described cleaning support 31, multiple brush sweeper 32 lays respectively in the interval 23 between described two connected heat exchanger fin groups 2, described cleaning support 31 drives described brush sweeper 32 to move in the inside at described interval 23, described feed tube 4 and drain pipe 5 are connected with described heat exchanger fin group 2 respectively, and the hollow cavity 22 of described heat exchanger fin group 2, feed tube 4 is connected with drain pipe 5, described brush sweeper 32 is stainless steel hairbrush.Again as shown in Figure 3, structure of the heat exchanger fin group 2 in the present embodiment and preparation method thereof see number of patent application is: the patent document of EP19860201052, is no longer described in detail at this.
In addition, described feed tube 4 is provided with multiple feed liquor arm 41, and described feed liquor arm 41 is connected with the hollow cavity 22 of described heat exchanger fin group 2 respectively.Described drain pipe 5 is provided with multiple fluid arm (not indicating in accompanying drawing), and described fluid arm is connected with the hollow cavity 22 of described heat exchanger fin group 2 respectively.In the present embodiment, a heat exchanger fin group 2 is connected with a fluid arm with a feed liquor arm 41 respectively, the medium that temperature is lower, in the present embodiment, above-mentioned medium is water, namely the cold water that temperature is lower enters the hollow cavity 22 of each heat exchanger fin group 2 from each feed liquor arm 41 of feed tube 4, flowing out via drain pipe 5, the flue gas of heat flows out from the top of flue gas heat-exchange unit through the below from flue gas heat-exchange unit after the interval 23 adjacent heat exchanger fin group 2 simultaneously, the heat of the flue gas of heat makes the temperature of the water in heat exchanger fin group 2 improve, namely cold water flows out from drain pipe 5 from becoming hot water after feed tube 4 passes through each heat exchanger fin group 2 heat exchange, discharge from the below of flue gas heat-exchange unit after flue gas cool-down after heat exchange simultaneously, thus realize the function reclaiming heat in hot flue gas.
Certainly, according to the needs of actual production, a heat exchanger fin group 2 also can be connected with multiple feed liquor arm 41, multiple fluid arm simultaneously, also can occur that a feed liquor arm 41 is connected with two or more heat exchanger fin groups 2, its operation principle is identical with the present embodiment, is not repeated at this.
In addition, described clearing apparatus also comprises Power Drive Unit, and described Power Drive Unit is connected with described cleaning support 31, and described housing 1 is provided with guide rail 11, and described cleaning support 31 is provided with the pulley 33 matched with described guide rail 11.Again as shown in Figure 1, the top of housing 1 and the both sides of bottom are equipped with guide rail 11, pulley 33 on cleaning support 31 can match with guide rail 11, pulley 33 can slidably reciprocate along guide rail 11, under the driving of Power Drive Unit, cleaning support 31 drives the inside of brush sweeper 32 pairs of flue gas heat-exchange units to clean, namely the inwall of housing 1, the outer surface of each heat exchanger fin group 2 are cleaned, guide rail 11 was both played a supporting role to cleaning support 31 and brush sweeper 32, again the cleaning of brush sweeper 32 was played to the effect of guiding.The arranged direction of certain brush sweeper 32 parallels setting with flow of flue gas direction, when brush sweeper 32 does not work, it is positioned at the end of heat exchanger inside, do not affect flue gas circulation, and when the inwall of brush sweeper 32 pairs of flue gas heat-exchange units and the outer surface of heat exchanger fin group 2 clean, because the arranged direction of brush sweeper 32 parallels with flow of flue gas direction, cleaning is more thorough, cleaning better effects if.
In the application of this flue gas heat-exchange unit, flue gas enters temperature 160 DEG C, cold water temperature 70 DEG C, temperature 115 DEG C after flue gas heat exchange, hot water effluent's temperature 80 DEG C, flue gas flow 20kg/s, heat-recoverable is about 900Kw, the use heat transfer coefficient of the flue gas heat-exchange unit of new clothes is 95W/ (m2 DEG C), use and to find that heat transfer coefficient of heat exchanger declines to a great extent 44.795W/ (m2 DEG C) after a period of time, reclaim heat and also drop to 573Kw, the inside of brush sweeper heat exchanger is now utilized to clean, after removing heat exchanger surface deposit, its heat transfer coefficient reaches 93 W/ (m2 DEG C), heat exchanger recovers normal work, this flue gas heat-exchange unit arranges brush sweeper 32 between adjacent two heat exchanger fin groups 2, by cleaning the attachment cleaning and be attached to heat exchanger plates 21 surface that moves around of hairbrush 32, thoroughly solve the problem causing heat exchange efficiency to reduce because of surface attachments after flue gas heat-exchange unit uses a period of time, eliminate the loaded down with trivial details of artificial unloading's cleaning.
Flue gas heat-exchange unit of the present invention arranges clearing apparatus in heat exchanger shell, moved around by the brush sweeper between power drive heat exchanger fin group gap, clean the deposit sticked on heat exchanger fin group surface, deposit is discharged from exchanger base, the cleaning of this clearing apparatus is convenient, thoroughly solve the blocking of flue gas heat-exchange unit, adhere to, deposition, the insoluble problems of existing heat exchanger such as heat exchange efficiency is low, and realize automatically controlling cleaning, eliminate the loaded down with trivial details of artificial unloading's cleaning, improve the heat exchange efficiency of heat exchanger, extend the service life of heat exchanger, reduce replacement cost and the use cost of heat exchanger.
Be different from prior art, flue gas heat-exchange unit of the present invention thoroughly solve cause heat exchange efficiency to reduce because of surface attachments after flue gas heat-exchange unit uses a period of time problem, eliminate artificial unloading's cleaning loaded down with trivial details, long service life, use cost are low.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.

Claims (6)

1. a flue gas heat-exchange unit, it is characterized in that, comprise: housing, multiple heat exchanger fin group, clearing apparatus, feed tube and drain pipe, described heat exchanger fin group is formed by stacking by least two heat exchanger plates, hollow cavity is provided with between described at least two heat exchanger plates, the inside being fixedly connected on described housing that described multiple heat exchanger fin group parallels successively, interval is provided with between two adjacent heat exchanger fin groups, described clearing apparatus comprises cleaning support and multiple brush sweeper, described brush sweeper is fixed on described cleaning support, multiple brush sweeper lays respectively in the interval between described two connected heat exchanger fin groups, described cleaning support drives described brush sweeper to move in the inside at described interval, described feed tube and drain pipe are connected with described heat exchanger fin group respectively, and the hollow cavity of described heat exchanger fin group, feed tube is connected with drain pipe.
2. flue gas heat-exchange unit according to claim 1, is characterized in that, described feed tube is provided with multiple feed liquor arm, and described multiple feed liquor arm is connected with the hollow cavity of described heat exchanger fin group respectively.
3. flue gas heat-exchange unit according to claim 1, is characterized in that, described drain pipe is provided with multiple fluid arm, and described multiple fluid arm is connected with the hollow cavity of described heat exchanger fin group respectively.
4. flue gas heat-exchange unit according to claim 1, is characterized in that, described housing is provided with guide rail, and described cleaning support is provided with the pulley matched with described guide rail.
5. flue gas heat-exchange unit according to claim 1, is characterized in that, described clearing apparatus also comprises Power Drive Unit, and described Power Drive Unit is connected with described cleaning support.
6. flue gas heat-exchange unit according to claim 1, is characterized in that, described brush sweeper is stainless steel hairbrush.
CN201410777050.0A 2014-12-17 2014-12-17 Flue gas heat exchanger Pending CN104482786A (en)

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Application Number Priority Date Filing Date Title
CN201410777050.0A CN104482786A (en) 2014-12-17 2014-12-17 Flue gas heat exchanger

Publications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106152838A (en) * 2016-09-13 2016-11-23 苏州协宏泰节能科技有限公司 A kind of heat exchanger of net formula lung shape heat exchanger plates
CN106482554A (en) * 2015-08-31 2017-03-08 中瑞新源能源科技(天津)股份有限公司 A kind of board-like heat-exchange apparatus
WO2020042450A1 (en) * 2018-08-27 2020-03-05 珠海格力电器股份有限公司 Cleaning device and heat exchanger provided with same
CN112146508A (en) * 2020-09-18 2020-12-29 南通中益环境科技有限公司 Heat exchanger convenient to clean
CN113001936A (en) * 2021-02-24 2021-06-22 吴燕军 High polymer material production extruder provided with cooling mechanism

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01239388A (en) * 1988-03-19 1989-09-25 Hisaka Works Ltd Plate type heat exchanger
CN2884121Y (en) * 2006-03-10 2007-03-28 周洪 Automatic dirt cleaning device for evaporator of air conditioner
CN201104157Y (en) * 2007-07-02 2008-08-20 珠海格力电器股份有限公司 Gear transmission cleaning apparatus of air conditioner condenser
CN201497400U (en) * 2009-08-31 2010-06-02 聊城市鲁西化工工程设计有限责任公司 Reactor internal module type heat exchanger
CN202267394U (en) * 2011-09-26 2012-06-06 同济大学 Primary surface heat exchanger for flue gas waste heat recovery
CN203518807U (en) * 2013-08-29 2014-04-02 Tcl空调器(中山)有限公司 Cleaning device of heat exchanger and air conditioner
CN103884209A (en) * 2014-03-10 2014-06-25 中国科学院过程工程研究所 Split combined type flue heat exchanger
CN203980963U (en) * 2014-05-16 2014-12-03 王一敏 A kind of board-like gas-liquid heat exchanger and heat-exchanger rig thereof
CN204373468U (en) * 2014-12-17 2015-06-03 苏州协宏泰节能科技有限公司 A kind of flue gas heat-exchange unit

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01239388A (en) * 1988-03-19 1989-09-25 Hisaka Works Ltd Plate type heat exchanger
CN2884121Y (en) * 2006-03-10 2007-03-28 周洪 Automatic dirt cleaning device for evaporator of air conditioner
CN201104157Y (en) * 2007-07-02 2008-08-20 珠海格力电器股份有限公司 Gear transmission cleaning apparatus of air conditioner condenser
CN201497400U (en) * 2009-08-31 2010-06-02 聊城市鲁西化工工程设计有限责任公司 Reactor internal module type heat exchanger
CN202267394U (en) * 2011-09-26 2012-06-06 同济大学 Primary surface heat exchanger for flue gas waste heat recovery
CN203518807U (en) * 2013-08-29 2014-04-02 Tcl空调器(中山)有限公司 Cleaning device of heat exchanger and air conditioner
CN103884209A (en) * 2014-03-10 2014-06-25 中国科学院过程工程研究所 Split combined type flue heat exchanger
CN203980963U (en) * 2014-05-16 2014-12-03 王一敏 A kind of board-like gas-liquid heat exchanger and heat-exchanger rig thereof
CN204373468U (en) * 2014-12-17 2015-06-03 苏州协宏泰节能科技有限公司 A kind of flue gas heat-exchange unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106482554A (en) * 2015-08-31 2017-03-08 中瑞新源能源科技(天津)股份有限公司 A kind of board-like heat-exchange apparatus
CN106152838A (en) * 2016-09-13 2016-11-23 苏州协宏泰节能科技有限公司 A kind of heat exchanger of net formula lung shape heat exchanger plates
WO2020042450A1 (en) * 2018-08-27 2020-03-05 珠海格力电器股份有限公司 Cleaning device and heat exchanger provided with same
CN112146508A (en) * 2020-09-18 2020-12-29 南通中益环境科技有限公司 Heat exchanger convenient to clean
CN113001936A (en) * 2021-02-24 2021-06-22 吴燕军 High polymer material production extruder provided with cooling mechanism

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Application publication date: 20150401