CN102798301B - Narrow flow channel type sewage heat exchanger - Google Patents
Narrow flow channel type sewage heat exchanger Download PDFInfo
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- CN102798301B CN102798301B CN201110147510.8A CN201110147510A CN102798301B CN 102798301 B CN102798301 B CN 102798301B CN 201110147510 A CN201110147510 A CN 201110147510A CN 102798301 B CN102798301 B CN 102798301B
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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, as Cooling and Heat Source, building is carried out to heating air conditioning, can directly reduce the consumption of other short energy, can also reach the object of twice laid simultaneously, 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, winter from sewage, absorb heat after source pump heats up to building heat supplying, thereby pass to sewage by source pump the heat in building summer, realize cooling.Sewage has substituted cooling tower, has the 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 that novel renewable and clean energy resource utilizes technology, the requirement of meet sustainable development, building a resource-conserving and environment-friendly society.Utilize scope, expand aspect urban sewage treatment benefit and there is far reaching significance expanding municipal sewage.
Solution comprises the severe water quality of sewage, and the obstruction of heat exchanging equipment and pipeline and fouling realize and continuing and stably heat exchange, are worldwide technological puzzle.
Utilize sewage to be as the key problem in technology of the Cooling and Heat Source of sewage source heat pump: to realize the high-efficiency and continuous heat exchange of sewage.
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 to release heat in sewage.Sewage after positive energy exchange, from return pipe, turns back in the exhaust system of municipal sewage.
The sewage filter device arranging before sewage heat exchanger, its filter bores 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 sewage, can pass through sewage filter device, enter sewage heat exchanger, constantly in the inner sedimentation of sewage heat exchanger, in heat exchanger plates surface deposition, fouling, heat exchanger plates surface resistance of heat transfer is increased, and 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 make a big difference, the method for designing of common heat exchanger, and use experience, can not be for sewage heat exchanger.Although the method for designing of common heat exchanger and manufacturing process are all very ripe,, 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 a detailed description in following monograph:
1, Zhao Jun, Dai Chuanshan chief editor, ground source heat pump technology and building energy conservation application, Beijing: China Construction Industry Press, 2009.
2, (U.S.) 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 sewage heat change, and the Impurity deposition of sewage is very little on its heat exchange property impact, 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 pass through partition heat exchange, it is characterized in that: the cross section of described runner is rectangular, and the height dimension of cross section of fluid channel is large, and width dimensions is little, and height dimension is the more than 2 times of width dimensions.
Described casing, it is the shell of narrow flow channel type sewage heat exchanger, rectangular; Box house is sewage runner and clear water runner, on box outer surface, has sewage import, sewage connecting leg, outlet of sewer, clear water import, clear water connecting leg and clear water output, and casing is made by carbon steel sheet.
Described sewage runner, it comprises: sewage import, sewage conduct, outer wall, partition, runner bottom surface, sewage connecting leg and outlet of sewer, sewage enters from sewage import, sewage conduct along level flows, by runner bottom surface one end opening, enter the sewage conduct of next level, in heat exchanger, come and go and flow, arrive after the sewage conduct of foot, by sewage connecting leg, stride across fresh water pipeline, enter into another row flowing from bottom to top, pass through the round sewage conduct of several levels again, arrive outlet of sewer, sewage runner is made by carbon steel sheet.
Described 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 enters from clear water import, fresh water pipeline along level flows, by runner bottom surface one end opening, enter the fresh water pipeline of next level, in heat exchanger, come and go and flow, arrive after the fresh water pipeline of foot, by clear water connecting leg, stride across sewage conduct, enter into another row flowing from bottom to top, pass through the round fresh water pipeline of several levels again, arrive clear water output, clear water runner is made by carbon steel sheet.
Advantage of the present invention is:
1, it is applicable to sewage heat change, and runner inside is unobstructed, is difficult for all plugs;
2, during contamination precipitation in sewage, fouling on the narrower bottom surface of sewage runner, bottom surface is not heat-transfer area;
3, due to the effect of gravity, impurity is detained seldom on the partition of runner side, very little to the Heat Transfer Influence of partition.
Can find out, narrow flow channel type sewage heat exchanger, it is applicable to sewage heat change, and it is difficult for all plugs, and contamination precipitation incrustation also not too affects heat exchange.Narrow flow channel type sewage heat exchanger can long-term stable operation, can keep higher heat exchange efficiency all the time.
Accompanying drawing explanation
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 drawings and Examples, 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 as shown in Figure 1.Sewage and clear water carry out heat exchange, and between two runners of sewage and clear water, by outer wall 130 and the partition 120 of runner, two adjacent runners that form, are all that cross section is the runner of rectangle.The height dimension of cross section of fluid channel is large, and width dimensions is little, and height dimension is the more than 2 times of width dimensions, is called narrow runner.
Two runners that separated by partition 120, a runner is sewage conduct 110, when another runner is the temperature difference of the fluid in 210, two runners of fresh water pipeline, between them, by partition 120, carries out heat exchange.
The heat exchanger arranging according to this structure, its following points benefit:
1, it is applicable to sewage heat change, and runner inside is unobstructed, unobstructed, without dead angle, is difficult for incrustation, is difficult for all plugs;
2, the impurity in sewage precipitates in runner, and it accumulates on the narrower bottom surface 160 of sewage conduct, and the heat-transfer area of impact is little;
3, the impurity in sewage precipitates in runner, and due to the effect of gravity, impurity hold-up on the upright side of sewage conduct is seldom, also just very little to the Heat Transfer Influence of side;
4, the bottom surface 160 of sewage conduct, it be above sewage conduct 110, it be also sewage conduct below, therefore, the precipitation of impurity on runner bottom surface 160, can not affect the heat exchange of sewage and clear water.
Can find out, narrow flow channel type sewage heat exchanger, it is applicable to sewage heat change, and it is difficult for all plugs, and contamination precipitation incrustation also not too affects 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 enters heat exchanger from sewage import 100, along runner bottom surface 160, in heat exchanger, flows.One end of runner bottom surface 160 is opening, and its guiding sewage, from a upper pipeline, enters next pipeline.In sewage heat exchanger, each pipeline has a runner bottom surface, total several runner bottom surfaces, except runner bottom surface be bottom totally enclosed, middle several runners bottom surface, is all an end opening.
When sewage is entered by sewage import 100, along sewage conduct 110, come and go and flow through several horizontal throws downwards, arrive after the sewage conduct of foot, by sewage connecting leg 150, enter into another and arrange mobile from bottom to top sewage conduct, through several round horizontal throws that make progress, flow, arrive outlet of sewer 140.
An outstanding feature of sewage conduct is that sewage is in a vertical elevation, comes and goes and flows.In other words, the bottom surface of a upper sewage conduct, is the end face of next sewage conduct.Mobile like this benefit is: dirt impurity in 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 sewage, therefore, does not affect the heat exchange between sewage and clear water.
Because the viscosity of sewage is larger, the thermal resistance of heat exchanger is main still in sewage side.Therefore, heat exchanger adopts steel plate to make, and centre is provided with a plurality of runners of turning back, and 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 partition.
In order to prevent the corrosion of sewage heat exchanger sewage runner, to four of sewage runner inner surfaces, 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 enters heat exchanger from clear water import 200, along runner bottom surface 260, in heat exchanger, flows.One end of runner bottom surface 260 is opening, and its guiding clear water, from a upper pipeline, enters next pipeline, two pipeline water flow opposite directions.In sewage heat exchanger, have several runner bottom surfaces, except runner bottom surface be bottom totally enclosed, middle several runners bottom surface, is all an end opening.Clear water, in heat exchanger, flows by coming and going of a plurality of pipelines, by partition 120, carries out heat exchange with sewage.
When clear water is entered by clear water import 200, along fresh water pipeline 210, be downward through several strokes, arrive after the fresh water pipeline of foot, by clear water connecting leg 250, enter into another and clear waterpipe, then flow through several strokes that make progress, arrive clear water output 240.The effect of clear water connecting leg 250 is that its guiding clear water, from a fresh water pipeline, strides across sewage conduct, arrives another fresh water pipeline.
An outstanding feature of clear water runner is that clear water is in a vertical elevation, comes and goes and flows.In other words, the bottom surface of a upper fresh water pipeline, is the end face of next fresh water pipeline.
The width of clear water runner is compared with sewage runner, and both can be identical, and the width of clear water runner also can be narrower, and this is because clear water runner generally can not stop up.Due to the good fluidity of clear water, the thermal resistance of clear water side is conventionally less.
Heat exchanger adopts steel plate to make, and in sewage runner and 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 exchanger clear water runner, four inner surfaces of clear water runner, do 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, with steel plate, makes, and on box outer surface, has: 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.
Sewage enters heat exchanger from sewage import 100, along the sewage conduct of level, in heat exchanger, comes and goes and flows, and the complete stroke of every stream, to the runner that declines.Come and go and flow through after several strokes, arrive the sewage conduct of foot, by sewage connecting leg 150, enter into the bottom runner of another sewer pipeline, then flow through several round trips that make progress, arrive outlet of sewer 140.
Clear water is entered by clear water import 200, along the fresh water pipeline of level, comes and goes and flows through several strokes, and the complete stroke of every stream, to the runner that declines.Arrive after the fresh water pipeline of foot, by clear water connecting leg 250, enter into the bottom runner that another clears waterpipe,, then flow through several horizontal round trips that make progress, clear water output 240 arrived.
Sewage and clear water are countercurrent flows.
Claims (2)
1. a 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, by partition heat exchange, is characterized in that:
The cross section of described runner is rectangular, the height dimension of cross section of fluid channel is large, width dimensions is little, height dimension is the more than 2 times of width dimensions, described sewage runner, it comprises: sewage import, sewage conduct, outer wall, partition, runner bottom surface, sewage connecting leg and outlet of sewer, sewage enters from sewage import, sewage conduct along level flows, by runner bottom surface one end opening, enter the sewage conduct of next level, in heat exchanger, come and go and flow, arrive after the sewage conduct of foot, by sewage connecting leg, stride across fresh water pipeline, enter into another row flowing from bottom to top, pass through again the round sewage conduct of several levels, arrive outlet of sewer, sewage runner is made by carbon steel sheet,
Described 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 enters from clear water import, fresh water pipeline along level flows, by runner bottom surface one end opening, enter the fresh water pipeline of next level, in heat exchanger, come and go and flow, arrive after the fresh water pipeline of foot, by clear water connecting leg, stride across sewage conduct, enter into another row flowing from bottom to top, pass through the round fresh water pipeline of several levels again, arrive clear water output, clear water runner is made by carbon steel sheet;
Sewage runner and clear water runner are the adjacent partition heat exchange in left and right, and the bottom surface of a upper sewage conduct, is the end face of next sewage conduct, and the bottom surface of a upper fresh water pipeline is the end face of next fresh water pipeline.
2. according to narrow flow channel type sewage heat exchanger claimed in claim 1, it is characterized in that:
Described casing, it is the shell of narrow flow channel type sewage heat exchanger, rectangular; Box house is described sewage runner and described clear water runner, on box outer surface, has described sewage import, described sewage connecting leg, described outlet of sewer, described clear water import, described clear water connecting leg and described clear water output, and casing is made by carbon steel sheet.
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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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| Application Number | Priority Date | Filing Date | Title |
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| CN201110147510.8A CN102798301B (en) | 2011-05-23 | 2011-05-23 | Narrow flow channel type sewage heat exchanger |
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| CN102798301A CN102798301A (en) | 2012-11-28 |
| CN102798301B true CN102798301B (en) | 2014-11-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE461610B (en) * | 1984-02-24 | 1990-03-05 | Stubinen Utvecklings Ab | REMOVABLE PLATE HEAT EXCHANGER WHEN CHANNELS DESIGN CAN BE VARIOUS |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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