CN102798301A - Narrow flow channel type sewage heat exchanger - Google Patents
Narrow flow channel type sewage heat exchanger Download PDFInfo
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- CN102798301A CN102798301A CN2011101475108A CN201110147510A CN102798301A CN 102798301 A CN102798301 A CN 102798301A CN 2011101475108 A CN2011101475108 A CN 2011101475108A CN 201110147510 A CN201110147510 A CN 201110147510A CN 102798301 A CN102798301 A CN 102798301A
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Abstract
The invention provides a narrow flow channel type sewage heat exchanger, which is applicable to sewage heat exchange. The heat exchange performance of the sewage heat exchanger is slightly influenced by precipitation of sewage impurities, and the sewage heat exchanger can steadily operate for a long time. The sewage heat exchanger structurally comprises a box body, a sewage flow channel and a clear water flow channel, wherein sewage and clear water respectively flow in horizontal flow channels in the box body, and heat is exchanged between the sewage and the clear water through dividing walls; the sections of the horizontal flow channels are rectangular, large in height and small in width, and the height is over 2 times of the width; the box body is a shell of the narrow flow channel type sewage heat exchanger and is rectangular; the sewage flow channel and the clear water flow channel are formed inside the box body; a sewage inlet, a sewage connection pipe, a sewage outlet, a clear water inlet, a clear water connection pipe and a clear water outlet are arranged on the outer surface of the box body; and the box body, the sewage flow channel and the clear water flow channel are respectively made of a carbon steel plate.
Description
Technical field
The present invention relates to heat-exchange apparatus, particularly relate to narrow flow channel type sewage heat exchanger.
Background technology
Utilize municipal sewage building to be carried out heating air conditioning as Cooling and Heat Source; Can directly reduce the consumption of other short energy; Can also reach simultaneously the purpose of twice laid, be resource regeneration, develop a circular economy, build a conservation-minded society, the important measures of friendly environment.
Sewage source heat pump relies on the states of matter circulation change of source pump internal refrigeration storage agent, from sewage, absorbs heat winter and heats up the back to building heat supplying through source pump, thereby pass through source pump summer the realization of the heat transferred sewage in building cooling.Sewage has substituted cooling tower, has outstanding advantages such as energy-efficient, environmental protection, safe and reliable, a tractor serves several purposes.
Utilizing sewage source heat pump to realize the recycling of city used heat, turn waste into wealth, is novel renewable and clean energy resource utilization technology, the requirement of meet sustainable development, building a resource-conserving and environment-friendly society.Utilize scope, expand and have far reaching significance aspect the urban sewage treatment benefit enlarging municipal sewage.
Solution comprises the abominable water quality of sewage, and the obstruction of heat exchanging equipment and pipeline and fouling realize continuing and heat exchange stably, are worldwide technological puzzle.
Utilize sewage to be: to realize the high-efficiency and continuous heat exchange of sewage as the key problem in technology of the Cooling and Heat Source of sewage source heat pump.
Common way is between municipal sewage and heat pump, and sewage filter device and sewage heat exchanger are set, and heat pump absorbs heat from sewage, or in sewage release heat.Sewage behind the positive energy exchange from return pipe, turns back in the exhaust system of municipal sewage.
The sewage filter device that before sewage heat exchanger, is provided with, its filtering holes can not be very little, otherwise sewage filter device is blocked soon.Such sewage filter device can solve the blockage problem of sewage heat exchanger, but the tiny sticky contaminant in the sewage can pass through sewage filter device; Get into sewage heat exchanger; Constantly in the inner sedimentation of sewage heat exchanger, in heat exchanger plates surface deposition, fouling; The heat exchanger plates surface resistance of heat transfer is increased, and the heat exchanger overall performance degenerates soon.
In industrial or agricultural and people's lives, discharge various sewage.Sewage heat exchanger and common heat exchanger condition of work have very big difference, the method for designing of common heat exchanger, and use experience can not be used for sewage heat exchanger.Although the method for designing of common heat exchanger and manufacturing process are all very ripe,, the sewage heat exchanger science design method so far, does not also have fine solution.
The background technology of above-mentioned relevant sewage heat exchanger has detailed description in following monograph:
1, Zhao Jun, the Dai Chuanshan chief editor, ground source heat pump technology and building energy conservation are used, Beijing: China Construction Industry Press, 2009.
2, (U.S.A) salad, Sai Kulike work, Cheng Linyi, design of heat exchanger technology, Beijing: China Machine Press, 2010.
Summary of the invention
The present invention provides a kind of narrow flow channel type sewage heat exchanger, and it is applicable to the sewage heat exchange, and the impurity deposition of sewage is very little to its heat exchange property influence, can long-term stable operation.
Its structure comprises: casing, sewage runner and clear water runner; Sewage and clear water flow in the runner in casing respectively, and sewage and clear water are through the partition heat exchange, and it is characterized in that: the cross section of said runner is rectangular, and the height dimension of cross section of fluid channel is big, and width dimensions is little, and height dimension is more than 2 times of width dimensions.
Said casing, it is the shell of narrow flow channel type sewage heat exchanger, and is rectangular; Box house is sewage runner and clear water runner, on the box outer surface, sewage import, sewage connecting leg, outlet of sewer, clear water import, clear water connecting leg and clear water output is arranged, and casing is made with carbon steel sheet.
Said sewage runner, it comprises: sewage import, sewage conduct, outer wall, partition, runner bottom surface, sewage connecting leg and outlet of sewer, sewage gets into from the sewage import; Sewage conduct along level flows, and through runner bottom surface one end opening, gets into the sewage conduct of next level; In heat exchanger, come and go and flow, behind the sewage conduct of arrival foot, through the sewage connecting leg; Stride across fresh water pipeline, enter into another row from bottom to top flow the sewage conduct that comes and goes through several levels again; Arrive outlet of sewer, the sewage runner is made with carbon steel sheet.
Said clear water runner, it comprises: clear water import, fresh water pipeline, outer wall, partition, runner bottom surface, clear water connecting leg and clear water output, clear water gets into from the clear water import; Fresh water pipeline along level flows, and through runner bottom surface one end opening, gets into the fresh water pipeline of next level; In heat exchanger, come and go and flow, behind the fresh water pipeline of arrival foot, through the clear water connecting leg; Stride across sewage conduct, enter into another row from bottom to top flow the fresh water pipeline that comes and goes through several levels again; Arrive clear water output, the clear water runner is made with carbon steel sheet.
Advantage of the present invention is:
1, it is applicable to the sewage heat exchange, and runner inside is unobstructed, is difficult for all plugs;
2, during contamination precipitation in the sewage, fouling on the narrower bottom surface of sewage runner, the bottom surface is not a heat-transfer area;
3, because the effect of gravity, impurity is detained seldom on the partition of runner side, and is very little to the heat transfer influence of partition.
Can find out, narrow flow channel type sewage heat exchanger, it is applicable to the sewage heat exchange, and it is difficult for all plugs, and contamination precipitation incrustation also not too influences heat exchange.Narrow flow channel type sewage heat exchanger can long-term stable operation, can keep higher heat exchange efficiency all the time.
Description of drawings
Fig. 1 is the basic principle figure of the narrow flow channel type sewage heat exchanger of the present invention embodiment;
Fig. 2 is the sewage runner structure chart of the narrow flow channel type sewage heat exchanger of the present invention embodiment;
Fig. 3 is the clear water flow passage structure figure of the narrow flow channel type sewage heat exchanger of the present invention embodiment;
Fig. 4 is the outline drawing of the narrow flow channel type sewage heat exchanger of the present invention embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Fig. 1 has provided the basic principle figure of the narrow flow channel type sewage heat exchanger of the present invention embodiment.
The basic principle of the narrow flow channel type sewage heat exchanger of the present invention embodiment is as shown in Figure 1.Sewage and clear water carry out heat exchange, and between two runners of sewage and clear water, by the outer wall 130 and the partition 120 of runner, two adjacent fluid channels that constituted all are that the cross section is the runner of rectangle.The height dimension of cross section of fluid channel is big, and width dimensions is little, and height dimension is more than 2 times of width dimensions, is called narrow runner.
By two runners that partition 120 separates, a runner is a sewage conduct 110, another runner be the fluid in 210, two runners of fresh water pipeline temperature not simultaneously, carry out heat exchange through partition 120 between them.
According to the heat exchanger that this structure is provided with, its following points benefit:
1, it is applicable to the sewage heat exchange, and runner inside is unobstructed, and is unobstructed, and no dead angle is difficult for incrustation, is difficult for all plugs;
2, when the impurity in the sewage precipitates in runner, it accumulates on the narrower bottom surface 160 of sewage conduct, and the heat-transfer area of influence is little;
3, when the impurity in the sewage precipitates in runner because the effect of gravity, impurity on the upright side of sewage conduct hold-up seldom, also just very little to the heat transfer influence of side;
4, the bottom surface 160 of sewage conduct is sewage conduct 110 above it, and its bottom also is a sewage conduct, and therefore, the deposition of impurity on runner bottom surface 160 can not influence the heat exchange of sewage and clear water.
Can find out, narrow flow channel type sewage heat exchanger, it is applicable to the sewage heat exchange, and it is difficult for all plugs, and contamination precipitation incrustation also not too influences heat exchange.Narrow flow channel type sewage heat exchanger can long-term stable operation, can keep higher heat exchange efficiency all the time.
Fig. 2 has provided the sewage runner structure chart of the narrow flow channel type sewage heat exchanger of the present invention embodiment.
The sewage runner of the narrow flow channel type sewage heat exchanger of the present invention embodiment, it comprises: sewage import 100, sewage conduct 110, outer wall 130, partition 120, runner bottom surface 160, sewage connecting leg 150, outlet of sewer 140.
Sewage along runner bottom surface 160, flows in heat exchanger after getting into heat exchanger from sewage import 100.One end of runner bottom surface 160 is openings, and its guiding sewage gets into next pipeline from a last pipeline.In sewage heat exchanger, each pipeline has a runner bottom surface, total several runner bottom surfaces, except bottom runner bottom surface be totally enclosed, middle several runners bottom surface all is an end opening.
When sewage is got into by sewage import 100; Along sewage conduct 110, come and go downwards and flow through several horizontal throws, behind the sewage conduct of arrival foot; Through sewage connecting leg 150; Enter into the sewage conduct that another row is flowed from bottom to top, flow, arrive outlet of sewer 140 through several round horizontal throws that make progress.
An outstanding feature of sewage conduct is that sewage is in a vertical elevation, comes and goes to flow.In other words, the bottom surface of a last sewage conduct is the end face of next sewage conduct.The benefit that flows like this is: dirt impurity in the sewage conduct, be deposited on the bottom surface of sewage conduct, and the bottom surface of this sewage conduct, it is on the interface between sewage and the sewage, therefore, does not influence the heat exchange between sewage and the clear water.
Because the viscosity of sewage is bigger, the thermal resistance of heat exchanger is mainly still in the sewage side.Therefore, heat exchanger adopts steel plate to make, and the centre is provided with a plurality of runners of turning back, and promptly the runner bottom surface is in order to improve sewage and clear water flow velocity, to improve the convection transfer rate between sewage or clear water and the partition.
In order to prevent the corrosion of sewage heat exchanging device sewage runner, to four inner surfaces of sewage runner, do surface treatment, can electroplate corrosion resistant metal, such as: chromium, nickel.
Fig. 3 has provided the clear water flow passage structure figure of the narrow flow channel type sewage heat exchanger of the present invention embodiment.
The clear water runner of the narrow flow channel type sewage heat exchanger of the present invention embodiment, it comprises: clear water import 200, fresh water pipeline 210, outer wall 130, partition 120, runner bottom surface 260, clear water connecting leg 250, clear water output 240.
Clear water along runner bottom surface 260, flows in heat exchanger after getting into heat exchanger from clear water import 200.One end of runner bottom surface 260 is openings, and its guiding clear water gets into next pipeline from a last pipeline, and two pipeline water (flow) directions are opposite.In sewage heat exchanger, several runner bottom surfaces are arranged, except bottom runner bottom surface be totally enclosed, middle several runners bottom surface all is an end opening.Clear water flows through coming and going of a plurality of pipelines in heat exchanger, through partition 120, carries out heat exchange with sewage.
When clear water is got into by clear water import 200, along fresh water pipeline 210, be downward through several strokes, behind the fresh water pipeline of arrival foot,, enter into another and clear waterpipe through clear water connecting leg 250, flow through several strokes that make progress again, arrive clear water output 240.The effect of clear water connecting leg 250 is that its guiding clear water strides across sewage conduct from a fresh water pipeline, arrives another fresh water pipeline.
An outstanding feature of clear water runner is that clear water is in a vertical elevation, comes and goes to flow.In other words, the bottom surface of a last fresh water pipeline is the end face of next fresh water pipeline.
The width of clear water runner is compared with the sewage runner, and both can be identical, and the width of clear water runner also can be narrower, and this is because the clear water runner generally can not stop up.Because the good fluidity of clear water, the thermal resistance of clear water side is less usually.
Heat exchanger adopts steel plate to make, and in sewage runner and the clear water runner, is equipped with a plurality of runners of turning back, and is in order to improve sewage and clear water flow velocity, to improve the coefficient of heat transfer.
For the corrosion of anti-sealing heat exchanging device clear water runner, four inner surfaces of clear water runner will be done surface treatment, can adopt baking vanish anticorrosion.
Fig. 4 has provided the outline drawing of the narrow flow channel type sewage heat exchanger of the present invention embodiment.
The profile of the narrow flow channel type sewage heat exchanger of the present invention embodiment is the casing of a rectangle, makes with steel plate, has on the box outer surface: outer wall 130, sewage import 100, sewage connecting leg 150, outlet of sewer 140; Clear water import 200, clear water connecting leg 250, clear water output 240.
After sewage gets into heat exchanger from sewage import 100, along the sewage conduct of level, in heat exchanger, come and go and flow, every stream finishes a stroke, to the runner that descends.Come and go flow through several strokes after, arrive the sewage conduct of foot, through sewage connecting leg 150, enter into the bottom runner of another sewer pipeline, flow through several round trips that make progress again, arrive outlet of sewer 140.
Clear water is got into by clear water import 200, along the fresh water pipeline of level, comes and goes and flows through several strokes, and every stream finishes a stroke, to the runner that descends.After arriving the fresh water pipeline of foot,, enter into the bottom runner that another clears waterpipe through clear water connecting leg 250,, flow through several horizontal round trips that make progress again, arrive clear water output 240.
Sewage and clear water are countercurrent flows.
Claims (4)
1. one kind narrow flow channel type sewage heat exchanger, its structure comprises: casing, sewage runner and clear water runner; Sewage and clear water flow in the runner in casing respectively, and sewage and clear water is characterized in that through the partition heat exchange:
The cross section of said runner is rectangular, and the height dimension of cross section of fluid channel is big, and width dimensions is little, and height dimension is more than 2 times of width dimensions.
2. according to the described narrow flow channel type sewage heat exchanger of claim 1, it is characterized in that:
Said casing, it is the shell of narrow flow channel type sewage heat exchanger, and is rectangular; Box house is sewage runner and clear water runner, on the box outer surface, sewage import, sewage connecting leg, outlet of sewer, clear water import, clear water connecting leg and clear water output is arranged, and casing is made with carbon steel sheet.
3. according to claim 1 or 2 described narrow flow channel type sewage heat exchangers, it is characterized in that:
Said sewage runner, it comprises: sewage import, sewage conduct, outer wall, partition, runner bottom surface, sewage connecting leg and outlet of sewer, sewage gets into from the sewage import; Sewage conduct along level flows, and through runner bottom surface one end opening, gets into the sewage conduct of next level; In heat exchanger, come and go and flow, behind the sewage conduct of arrival foot, through the sewage connecting leg; Stride across fresh water pipeline, enter into another row from bottom to top flow the sewage conduct that comes and goes through several levels again; Arrive outlet of sewer, the sewage runner is made with carbon steel sheet.
4. according to claim 1 or 2 described narrow flow channel type sewage heat exchangers, it is characterized in that:
Said clear water runner, it comprises: clear water import, fresh water pipeline, outer wall, partition, runner bottom surface, clear water connecting leg and clear water output, clear water gets into from the clear water import; Fresh water pipeline along level flows, and through runner bottom surface one end opening, gets into the fresh water pipeline of next level; In heat exchanger, come and go and flow, behind the fresh water pipeline of arrival foot, through the clear water connecting leg; Stride across sewage conduct, enter into another row from bottom to top flow the fresh water pipeline that comes and goes through several levels again; Arrive clear water output, the clear water runner is made with carbon steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110147510.8A CN102798301B (en) | 2011-05-23 | 2011-05-23 | Narrow flow channel type sewage heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110147510.8A CN102798301B (en) | 2011-05-23 | 2011-05-23 | Narrow flow channel type sewage heat exchanger |
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| Publication Number | Publication Date |
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| CN102798301A true CN102798301A (en) | 2012-11-28 |
| CN102798301B CN102798301B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110147510.8A Active CN102798301B (en) | 2011-05-23 | 2011-05-23 | Narrow flow channel type sewage heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185473A (en) * | 2013-01-18 | 2013-07-03 | 哈尔滨工大金涛科技股份有限公司 | Sewage-refrigerant phase-change heat exchanger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985003767A1 (en) * | 1984-02-24 | 1985-08-29 | Stubinen Utveckling Ab | Apparatus for transmission of heat between different liquid media |
| CN201277826Y (en) * | 2008-05-12 | 2009-07-22 | 北京瑞宝利热能科技有限公司 | Intelligent self-cleaning block preventing heat energy collector for native sewage water source |
| CN101598507A (en) * | 2009-07-02 | 2009-12-09 | 宫润泽 | Heat exchange device of complete isolation sewage pipe casing of single-layer flat pipe |
| CN201463656U (en) * | 2009-07-03 | 2010-05-12 | 杨铁君 | Energy-saving efficient anticorrosive combined type heat exchanger |
-
2011
- 2011-05-23 CN CN201110147510.8A patent/CN102798301B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985003767A1 (en) * | 1984-02-24 | 1985-08-29 | Stubinen Utveckling Ab | Apparatus for transmission of heat between different liquid media |
| CN201277826Y (en) * | 2008-05-12 | 2009-07-22 | 北京瑞宝利热能科技有限公司 | Intelligent self-cleaning block preventing heat energy collector for native sewage water source |
| CN101598507A (en) * | 2009-07-02 | 2009-12-09 | 宫润泽 | Heat exchange device of complete isolation sewage pipe casing of single-layer flat pipe |
| CN201463656U (en) * | 2009-07-03 | 2010-05-12 | 杨铁君 | Energy-saving efficient anticorrosive combined type heat exchanger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185473A (en) * | 2013-01-18 | 2013-07-03 | 哈尔滨工大金涛科技股份有限公司 | Sewage-refrigerant phase-change heat exchanger |
| CN103185473B (en) * | 2013-01-18 | 2015-11-25 | 哈尔滨工大金涛科技股份有限公司 | Sewage-refrigerant phase-change heat exchanger |
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| CN102798301B (en) | 2014-11-05 |
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