CN207050492U - A kind of My heat recovery system of sewage - Google Patents

A kind of My heat recovery system of sewage Download PDF

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Publication number
CN207050492U
CN207050492U CN201721026113.4U CN201721026113U CN207050492U CN 207050492 U CN207050492 U CN 207050492U CN 201721026113 U CN201721026113 U CN 201721026113U CN 207050492 U CN207050492 U CN 207050492U
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heat
waste
heat recovery
steam
sewage
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CN201721026113.4U
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李斌
杜永斌
杨天亮
葛茂杰
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Yantai Longyuan Power Technology Co Ltd
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Yantai Longyuan Power Technology Co Ltd
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Abstract

The utility model discloses a kind of My heat recovery system of sewage, including regular unloading container, heat-exchanger rig and waste-heat recovery device, regular unloading container is provided with waterwater entrance, steam (vapor) outlet and wastewater outlet;Heat-exchanger rig connects with steam (vapor) outlet, and steam is passed through that direction is vertical with the heat exchanger plates of heat-exchanger rig, and heat exchanger plates are provided with multiple through holes;Heat-exchanger rig is being respectively arranged with industrial water inlet and industrial water out perpendicular to the relative both sides for being passed through direction of steam, and the drainpipe that industrial water out is connected by pipeline with wastewater outlet connects;Waste-heat recovery device connects with drainpipe, for reclaiming the waste heat of waste water in drainpipe.The recovery system absorbs indirect steam and its heat of carrying by heat-exchanger rig, indirect steam chance water cooling is congealed into the industry water containing heat, and enter after the spent hot water's mixing separated with regular unloading container in waste-heat recovery device and carry out waste heat recovery, avoid the waste of heat and industry water.

Description

A kind of My heat recovery system of sewage
Technical field
It the utility model is related to heat recovery technology field, more particularly to a kind of My heat recovery system of sewage.
Background technology
At present, thermal power plant is typically generated electricity using boiler steam and water circuit.Boiler steam and water circuit after the certain time that works, Need to carry out continuous blowdown and periodical blowdown to boiler, so as to while boiler steam and water circuit security is ensured, ensure boiler The quality of stove water in boiler circuit, so as to improve the service life of boiler steam and water circuit.
At present, for boiler steam and water circuit during blowdown, boiler can lose part high-quality stove device of working medium.For the row of recovery The high-quality working medium lost during dirt, generally it is provided with continuous blowdown flash tank and periodical blowdown dilatation in drainage end Device.Wherein, regular unloading container is the final stage and main sewerage equipment of drainage, and the main source of the working medium of its entrance has Boiler arranges the hydrophobic main pipe of main pipe, boiler, continuous blowdown flash tank, continuous blowdown flash tank branch road and oxygen-eliminating device emergency blowoff surely Deng, multichannel working medium passes through regular unloading container, by decompression, dilatation isolate indirect steam and spent hot water's two parts.
In the prior art, the indirect steam isolated by regular unloading container dilatation will be directly discharged into air.One Aspect, contain amount of heat in indirect steam, be directly discharged to cause thermal loss in air;On the other hand, indirect steam exists Liquefied in air, form " white cigarette ", influenceed the operation in thermal power plant, potential safety hazard be present.
In addition, also containing amount of heat in spent hot water, spent hot water, which directly discharges, will cause thermal pollution, in currently available technology , it is necessary to which a large amount of industry waters carry out cooling processing to spent hot water in the discharge process of spent hot water, then pond is received by flowing back to surely Trench is discharged into, thus causes the double loss of industry water and heat.
Utility model content
The purpose of this utility model is to propose that a kind of steam that reduces loses, avoided more than waste heat and the waste water of industrial water waste Heat recovery system.
To use following technical scheme up to this purpose, the utility model:
A kind of My heat recovery system of sewage, including:
Regular unloading container, it is provided with waterwater entrance, steam (vapor) outlet and wastewater outlet;
Heat-exchanger rig, connected with the steam (vapor) outlet, and steam be passed through direction and the heat exchanger plates of the heat-exchanger rig hang down Directly, the heat exchanger plates are provided with multiple through holes;
The heat-exchanger rig enters being respectively arranged with industry water perpendicular to the relative both sides for being passed through direction of the steam Mouth and industrial water out;
Waste-heat recovery device, connected respectively with the industrial water out and the wastewater outlet by drainpipe, for returning Receive the waste heat of waste water in drainpipe.
Wherein, the heat-exchanger rig is provided with least two heat exchanger plates be arrangeding in parallel, and each heat exchanger plates are corresponding It is provided with an industrial water inlet and an industrial water out.
Wherein, multiple through holes are distributed on the heat exchanger plates in the form of an array.
Wherein, the through hole stagger arrangement distribution on two adjacent heat exchanger plates.
Wherein, the upper end of the regular unloading container, which is provided with, determines row's safety valve.
Wherein, the waste-heat recovery device includes plate type heat exchanger, the drainpipe and the first of the plate type heat exchanger Entrance is connected, and the first outlet of the plate type heat exchanger is connected by pipeline with waste liquid pool;The medium of the plate type heat exchanger enters Mouth is connected by pipeline with medium source, and the media outlet of the plate type heat exchanger is connected by pipeline with heating system.
Wherein, the medium is desalted water, and the heating system is boiler steam and water circuit.
Wherein, the drainpipe is additionally provided with filter.
Wherein, above-mentioned all pipelines are provided with regulating valve, for adjusting the flow of the fluids within pipes.
Wherein, the quantity of the regular unloading container is multiple that each regular unloading container is provided with one The individual heat-exchanger rig, each regular unloading container are connected by the drainpipe with the waste-heat recovery device.
Beneficial effect:The utility model provides a kind of My heat recovery system of sewage, including regular unloading container, heat exchange Device and waste-heat recovery device, regular unloading container are provided with waterwater entrance, steam (vapor) outlet and wastewater outlet;Heat-exchanger rig Connected with the steam (vapor) outlet, and steam to be passed through direction vertical with the heat exchanger plates of the heat-exchanger rig, the heat exchanger plates are set There are multiple through holes;The heat-exchanger rig is respectively arranged with industry water in the relative both sides for being passed through direction perpendicular to the steam Entrance and industrial water out, the drainpipe that the industrial water out is connected by pipeline with the wastewater outlet connect;Waste heat returns Receiving apparatus connects with the drainpipe, for reclaiming the waste heat of waste water in drainpipe.The My heat recovery system of sewage passes through heat exchange Device absorbs indirect steam and its heat of carrying, and indirect steam chance water cooling is congealed into the industry water containing indirect steam heat simultaneously Separated with regular unloading container spent hot water mixing after enter waste-heat recovery device in carries out pre- recuperation of heat, avoid heat and The waste of industry water, more energy-saving and environmental protection.
Brief description of the drawings
Fig. 1 is the structural representation one for the My heat recovery system of sewage that the utility model embodiment provides;
Fig. 2 is the structural representation two for the My heat recovery system of sewage that the utility model embodiment provides.
Wherein:
1st, regular unloading container;11st, waterwater entrance;12nd, steam (vapor) outlet;13rd, wastewater outlet;
2nd, heat-exchanger rig;21st, heat exchanger plates;22nd, industrial water inlet;23rd, industrial water out;
3rd, waste-heat recovery device;31st, first entrance;32nd, first outlet;33rd, medium inlet;34th, media outlet;
4th, flow back to surely and receive pond;41st, draining pump;5th, filter;6th, regulating valve.
Embodiment
It is clearer for the technical scheme and the technique effect that reaches that make technical problem that the utility model solves, use, Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
As shown in figure 1, a kind of My heat recovery system of sewage is present embodiments provided, including regular unloading container, heat exchange Device 2 and waste-heat recovery device 3, regular unloading container are provided with waterwater entrance 11, steam (vapor) outlet 12 and wastewater outlet 13; Heat-exchanger rig 2 connects with steam (vapor) outlet 12, and, the heat exchanger plates 21 vertical with the heat exchanger plates 21 of heat-exchanger rig 2 that are passed through direction of steam It is provided with multiple through holes;Heat-exchanger rig 2 enters being respectively arranged with industry water perpendicular to the relative both sides for being passed through direction of steam Mouth 22 and industrial water out 23;Waste-heat recovery device 3 is connected with industrial water out 23 and wastewater outlet 13 respectively by drainpipe, For reclaiming the waste heat of waste water in drainpipe.The My heat recovery system of sewage absorbs indirect steam by heat-exchanger rig 2 and its taken The heat of band, indirect steam chance water cooling is congealed into the industry water containing indirect steam heat and separated with regular unloading container Enter after spent hot water's mixing in waste-heat recovery device 3 and carry out pre- recuperation of heat, avoid the waste of heat and industry water, more supernumerary segment Energy, environmental protection.
Specifically, the spent hot water in thermal power plant isolates two after regular unloading container by decompression, dilatation Secondary steam and spent hot water, indirect steam are entered in heat-exchanger rig 2 by the steam (vapor) outlet 12 of regular unloading container upper end, heat exchange Include heat exchanger plates 21 in device 2, heat exchanger plates 21 are passed through direction perpendicular to steam.During work, heat-exchanger rig 2 is by industrial water inlet 22 are passed through industry water, and industry water is flowed out from industrial water inlet 22 to industrial water out 23, and industry water forms one on heat exchanger plates 21 Layer moisture film, indirect steam are contacted by the through hole on heat exchanger plates 21 with the moisture film that industry water is formed so that indirect steam liquefies simultaneously Flowed out by industrial water out 23, so as to avoid indirect steam from being directly discharged in air, cause heat waste, hindering equipment just Often work.
The quantity of through hole on heat exchanger plates 21 is multiple, and multiple through holes can be distributed according to array way, can also set More exhausting holes, it is staggered per exhausting hole so that indirect steam contacts uniformly through heat exchanger plates 21 and with moisture film, reduces steam Waste.
At least two heat exchanger plates 21 can be set further to absorb indirect steam, in heat-exchanger rig 2, and heat exchanger plates 21 are parallel Set, heat-exchanger rig 2 is respectively arranged with an industrial water inlet 22 and an industry at the corresponding both ends of each heat exchanger plates 21 Water out 23 so that the upper end of each heat exchanger plates 21 is respectively formed water membrane.When indirect steam passes through first layer moisture film, part is steamed Vapour-liquid is discharged with industry water, and remaining indirect steam is contacted saturated vapor is formed and liquefied with the moisture film on upper strata, by setting Put multiple heat exchanger plates 21 and form multilayer moisture film, the degree of absorption of indirect steam can be improved, place indirect steam with industry water Flowed out from the industrial side of water out 23.
When heat-exchanger rig 2 is provided with the heat exchanger plates 21 that at least two be arranged in parallel, on adjacent two heat exchanger plates 21 Through hole can be distributed with stagger arrangement so that indirect steam can contact with moisture film, improve the absorption efficiency of indirect steam.
Indirect steam amount is excessive to avoid in regular unloading container, causes the pressure in regular unloading container to increase, Potential safety hazard be present, the upper end of blowdown system is also provided with fixed row's safety valve, when the pressure in regular unloading container During more than preset value, safety valve is arranged surely and is opened, the pressure in regular unloading container is reduced, avoids the occurrence of security incident.
Waste-heat recovery device 3 includes the first entrance 31 of plate type heat exchanger, drainpipe and plate type heat exchanger in the present embodiment Connection, the first outlet 32 of plate type heat exchanger are connected by pipeline with waste liquid pool;The medium inlet 33 of plate type heat exchanger passes through pipe Road is connected with medium source, and the media outlet 34 of plate type heat exchanger is connected by pipeline with heating system.By periodical blowdown dilatation The spent hot water that device excludes is entered in plate type heat exchanger by first entrance 31, and carries out heat friendship with the medium in plate type heat exchanger After changing, the waste water of cooling is flowed into waste liquid pool to discharge or enter in other process procedures by first outlet 32 to be used, by heat The higher medium of temperature after exchange, which will enter in heating system, utilize, so as to realize the recycling of waste heat.
Medium in the present embodiment in plate type heat exchanger is the desalted water of normal temperature, and desalted water refers to be easy to what is removed by contained Strong electrolyte removes or is reduced to a certain degree of water, it is possible to reduce the incrustation scale in boiler.Heating system can be boiler carbonated drink System, desalted water are exchanged heat by plate type heat exchanger and spent hot water, using the high heat exchange efficiency of plate type heat exchanger, can passed heat Desalted water is passed, after heated desalted water enters boiler steam and water circuit, improves the thermal efficiency of boiler steam and water circuit water circulation, So as to improve the economical of unit.Cooled waste water, it is not necessary to by cooling handle, can be directly discharged to trench or In pipeline, or it is stored in waste liquid pool so that other process procedures use.
To avoid spent hot water from blocking plate type heat exchanger, filter, periodical blowdown dilatation are also provided with drainpipe Filter can also be provided with device, to used heat water filtration, to avoid pipeline or plate type heat exchanger from blocking.
In the present embodiment, the pipeline between each part is also provided with regulating valve 6, and regulating valve 6 is used to adjust in pipeline The flow of fluid, so that heat is sufficiently reclaimed and utilized.
In the prior art, the spent hot water of general regular unloading container is discharged to flow back to surely by drainpipe and received in pond 4, and By determining at drainpipe row, downstream water thermal pollution is caused.As shown in Fig. 2 My heat recovery system of sewage in the present embodiment in order to The equipment of compatible firepower electrical plant at present, the drainpipe of regular unloading container can be connected with flowing back to receipts pond 4 surely, and spent hot water is led to Cross drainpipe and be stored in flow back to surely and receive in pond 4, and connected by draining pump 41 and pipeline with waste-heat recovery device 3, can also Realize the heat recovery of spent hot water.Pressure gauge and thermometer are additionally provided with the pipeline that waste-heat recovery device 3 connects, can be with Pressure and temperature in real-time monitored pipeline, the flow in each pipeline is adjusted according to pressure and temperature, avoid that security incident occurs.
On the basis of the above, the quantity of the regular unloading container in the present embodiment can be multiple, each periodical blowdown Flash vessel is provided with a heat-exchanger rig 2, and the drainpipe of each regular unloading container connects with waste-heat recovery device 3, Realize the indirect steam excluded to multiple regular unloading containers and the heat recovery of spent hot water.
Above content is only preferred embodiment of the present utility model, for one of ordinary skill in the art, according to this reality With new thought, there will be changes, this specification content should not be construed as in specific embodiments and applications To limitation of the present utility model.

Claims (10)

  1. A kind of 1. My heat recovery system of sewage, it is characterised in that including:
    Regular unloading container, it is provided with waterwater entrance (11), steam (vapor) outlet (12) and wastewater outlet (13);
    Heat-exchanger rig (2), connected with the steam (vapor) outlet (12), and steam is passed through changing for direction and the heat-exchanger rig (2) Vertically, the heat exchanger plates (21) are provided with multiple through holes to hot plate (21);
    The heat-exchanger rig (2) is respectively arranged with industrial water inlet in the relative both sides for being passed through direction perpendicular to the steam And industrial water out (23) (22);
    Waste-heat recovery device (3), connected respectively with the industrial water out (23) and the wastewater outlet (13) by drainpipe, For reclaiming the waste heat of waste water in drainpipe.
  2. 2. My heat recovery system of sewage as claimed in claim 1, it is characterised in that the heat-exchanger rig (2) is provided with least Two heat exchanger plates (21) be arrangeding in parallel, each heat exchanger plates (21) are correspondingly arranged on an industrial water inlet (22) and one Individual industrial water out (23).
  3. 3. My heat recovery system of sewage as claimed in claim 2, it is characterised in that multiple through holes are distributed in the form of an array In on the heat exchanger plates (21).
  4. 4. My heat recovery system of sewage as claimed in claim 3, it is characterised in that on two adjacent heat exchanger plates (21) Through hole stagger arrangement distribution.
  5. 5. My heat recovery system of sewage as claimed in claim 1, it is characterised in that the upper end of the regular unloading container is set It is equipped with and determines row's safety valve.
  6. 6. such as the My heat recovery system of sewage any one of claim 1-5, it is characterised in that the waste-heat recovery device (3) plate type heat exchanger is included, the drainpipe connects with the first entrance (31) of the plate type heat exchanger, the plate type heat exchanger First outlet (32) connected by pipeline with waste liquid pool;The medium inlet (33) of the plate type heat exchanger passes through pipeline and medium Source is connected, and the media outlet (34) of the plate type heat exchanger is connected by pipeline with heating system.
  7. 7. My heat recovery system of sewage as claimed in claim 6, it is characterised in that the medium is desalted water, the heat supply System is boiler steam and water circuit.
  8. 8. My heat recovery system of sewage as claimed in claim 6, it is characterised in that the drainpipe is additionally provided with filtering dress Put.
  9. 9. My heat recovery system of sewage as claimed in claim 6, it is characterised in that above-mentioned all pipelines are provided with regulation Valve (6), for adjusting the flow of the fluids within pipes.
  10. 10. such as the My heat recovery system of sewage any one of claim 1-5, it is characterised in that the periodical blowdown expands The quantity of container is multiple, and each regular unloading container is provided with a heat-exchanger rig (2), each described fixed Phase blowdown system is connected by the drainpipe with the waste-heat recovery device (3).
CN201721026113.4U 2017-08-16 2017-08-16 A kind of My heat recovery system of sewage Active CN207050492U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721026113.4U CN207050492U (en) 2017-08-16 2017-08-16 A kind of My heat recovery system of sewage

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Application Number Priority Date Filing Date Title
CN201721026113.4U CN207050492U (en) 2017-08-16 2017-08-16 A kind of My heat recovery system of sewage

Publications (1)

Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114659088A (en) * 2022-03-14 2022-06-24 中国恩菲工程技术有限公司 Dead steam energy collecting system and cooling water flow determining method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114659088A (en) * 2022-03-14 2022-06-24 中国恩菲工程技术有限公司 Dead steam energy collecting system and cooling water flow determining method
CN114659088B (en) * 2022-03-14 2024-02-06 中国恩菲工程技术有限公司 Exhaust steam energy collecting system and cooling water flow determining method

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