CN203700098U - Device for treating power plant waste water with steam waste heat of thermal power plant - Google Patents
Device for treating power plant waste water with steam waste heat of thermal power plant Download PDFInfo
- Publication number
- CN203700098U CN203700098U CN201420044558.5U CN201420044558U CN203700098U CN 203700098 U CN203700098 U CN 203700098U CN 201420044558 U CN201420044558 U CN 201420044558U CN 203700098 U CN203700098 U CN 203700098U
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- Prior art keywords
- pipeline
- pump
- communicated
- steam
- waste water
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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.)
- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 239000002918 waste heat Substances 0.000 title claims abstract description 8
- 239000010908 plant waste Substances 0.000 title abstract 2
- 239000002351 wastewater Substances 0.000 claims abstract description 25
- 230000018044 dehydration Effects 0.000 claims abstract description 11
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 11
- 238000011084 recovery Methods 0.000 claims abstract description 8
- 238000004821 distillation Methods 0.000 claims abstract description 7
- 238000005086 pumping Methods 0.000 claims abstract description 5
- 239000006200 vaporizer Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 238000005276 aerator Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 239000013535 sea water Substances 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 abstract description 16
- 239000010842 industrial wastewater Substances 0.000 abstract description 8
- 239000010865 sewage Substances 0.000 abstract description 7
- 238000005498 polishing Methods 0.000 abstract description 2
- 238000005352 clarification Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 8
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 239000012267 brine Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model discloses a device for treating power plant waste water with steam waste heat of a thermal power plant. An outlet of a feed water pump is communicated with steam of a steam turbine via a high pressure heater, a boiler and a superheater, one path of a steam outlet of the steam turbine is communicated with a water inlet of the feed water pump sequentially via a condenser, a condensate tank, a condensate pump, a condensate polishing unit, a low pressure heater and a deaerating device.Another path of the steam turbine is communicated with an evaporating crystallizer, or communicated with the evaporating crystallizer via a steam compressor; the top of the evaporating crystallizer is communicated with an evaporating cooler; the bottom of the evaporating crystallizer is communicated with a dehydration separator; the upper part of the evaporating cooler is communicated with an industrial waste water tank via a valve and a make-up pump; the lower part of the evaporating cooler is communicated with a distillation recovery water tank via a recovery pump; the bottom of the evaporating cooler is communicated with the evaporating crystallizer via a valve; the upper end of the evaporating cooler is communicated with vacuum pumping equipment; the industrial waste water tank is communicated with the evaporating crystallizer via the make-up pump and a valve; the bottom of the industrial waste water tank is communicated with a sewage clarification tank via a waste water delivery pump; and the sewage clarification tank is communicated with the dehydration separator via a blowdown pump.
Description
Technical field
The utility model belongs to equipment or the device technique field of thermal power generation station-service, is specifically related to fuel-burning power plant sewage disposal device.
Background technology
Fuel-burning power plant is industrial water consumption rich and influential family, also be industrial wastewater discharge rich and influential family, the wastewater flow rate producing is large, as unprocessed direct discharge, not only will environment be caused to serious harm, and cause great waste, especially seriously deficient in the northern area of China water resources, the environmental pollution that the discharge of power plant effluent causes and water resource waste become the problem of restriction city and electric power Sustainable development, for reducing the impact of sewage discharge on environment, many power plant adopt the whole bag of tricks to process industrial sewage, but because industrial wastewater treatment system investment is huge and running cost is high, many power plant take a passive attitude to Industrial Wastewater Treatment, built equipment is also only out that start-stop stops, fundamentally do not solve industrial sewage and process problem.
Thermal power generation process is the process of an energy transformation, the chemical energy that is fuel is transformed into saturation steam by boiler by water, saturation steam becomes superheated vapour after superheater is overheated, the superheated vapour acting of expanding in steam turbine, change the heat energy of steam into mechanical energy, by generator the most at last mechanical energy change into electric energy.The low-pressure saturated steam expanding after acting is condensed into condensed water through air cooling tubes condenser, then deliver to condensate polishing system by condensate pump, after processing, get back to boiler recycle, deliver to the processing of condensate fine processing enter by condensate pump, condensed water after treatment enters de-aerator plant after low pressure heater heating, deliver to high pressure heater by service pump again, permanent set water is got back to boiler recycle, exhaust steam in steam turbine is condensed into condensed water by air cooling tubes condenser, huge condensation latent heat is taken away discharged to atmosphere by water coolant or air, can not be used, cause the cold end loss of steam turbine, energy wastage is huge, the condensing effect of air cooling tubes condenser determines the back pressure of steam turbine simultaneously, lower back pressure can improve steam turbine power generation efficiency, reduce electric set electric supply coal consumption, therefore the equipment uses in parallel with original condenser such as spike condenser or evaporative cooler are additionally installed by a lot of power plant, condensation portion steam, reduce turbine back pressure, reach energy-conservation object.
Current fuel-burning power plant does not still solve the above-mentioned unit back pressure that can reduce and reaches energy-saving effect, can process again the method equipment of industrial wastewater discharge problem simultaneously.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortcoming of prior art, provide a kind of reasonable in design, Non-energy-consumption, remarkable in economical benefits with fuel-burning power plant steam waste heat treatment of Power waste water plant.
Solving the problems of the technologies described above adopted technical scheme is: feedwater pump outlet is connected by being arranged on high pressure heater on pipeline and the water-in of boiler, the vapour outlet of boiler is connected by being arranged on superheater on pipeline and the steam-in of steam turbine, and vapour outlet one tunnel of steam turbine is connected by the water inlet that is arranged on condenser, condensate tank, condensate pump, condensate fine treater, low pressure heater, de-aerator plant and service pump on pipeline successively.The exhaust steam that steam turbine is discharged exports another road with evaporative crystallizer is connected or be connected by the vapour compressor and the evaporative crystallizer that are arranged on pipeline, the top of evaporative crystallizer by pipeline and evaporative cooler be connected, bottom is connected by pipeline and the separator that dewaters, evaporative cooler top is connected by being arranged on valve on pipeline and small pump and Industry Waste water tank, bottom is connected by the recovered water pump and the Distillation recovery water tank that are arranged on pipeline, bottom is connected by the valve and the evaporative crystallizer bottom that are arranged on pipeline, evaporative cooler upper end and vaccum-pumping equipment are connected, Industry Waste water tank is connected by being arranged on small pump and valve and evaporative crystallizer on pipeline, bottom is connected by the waste water transferpump and the clarifying contaminated liquids pond that are arranged on pipeline, clarifying contaminated liquids pond is connected with dehydration separator by the residual sea water pump being arranged on pipeline.
Evaporative crystallizer of the present utility model is: be provided with in tank body upper end that the drum, the bottom that are connected by pipeline and evaporative cooler are provided with concentrated water tank, outer lower portion is connected by pipeline and condensate tank, be provided with vaporizer, vaporizer top is provided with the spray thrower being connected by the water circulating pump on pipeline and concentrated water tank in tank body.
Vaporizer of the present utility model is the heat-exchanging tube bundle on tube sheet that is arranged on of vertically arranging.
The exhaust steam that the utility model adopts power plant steam turbine to discharge adds thermal distillation to trade effluent, distilled water is sent into the moisturizing of thermal power generation steam-water circulation system, isolated solid sundries is discharged to grey factory and office reason, solve the industrial sewage processing of thermal power plant, reduce environmental pollution, reduced Industrial Waste Water in Coal-fired Power Plant processing costs.The utlity model has the advantages such as reasonable in design, Non-energy-consumption, remarkable in economical benefits, can promote the use of in thermal power plant.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the structural representation of evaporative crystallizer 8 in Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described, but the utility model is not limited to these embodiment.
Embodiment 1
In Fig. 1, the connecting and form by high pressure heater 1, boiler 2, superheater 3, condenser 4, steam turbine 5, generator 6, vapour compressor 7, evaporative crystallizer 8, evaporative cooler 9, recovered water pump 10, small pump 11, Industry Waste water tank 12, waste water transferpump 13, clarifying contaminated liquids pond 14, Distillation recovery water tank 15, residual sea water pump 16, dehydration separator 17, condensate tank 18, condensate pump 19, condensate fine treater 20, low pressure heater 21, de-aerator plant 22, service pump 23 with fuel-burning power plant steam waste heat treatment of Power waste water plant of the present embodiment.
In thermal power generation steam-water circulation system, the outlet of service pump 23 is connected with the water-in of boiler 2 by the high pressure heater 1 being arranged on pipeline, service pump 23 is transported to high pressure heater 1 by water and heats and enter boiler 2, and water heating evaporation is become steam by boiler 2.The vapour outlet of boiler 2 is connected with the steam-in of steam turbine 5 by the superheater 3 being arranged on pipeline, the power input shaft of the turning axle of steam turbine 5 and generator 6 is connected, steam turbine 5 drives generator 6 rotary electrifications, the vapour outlet of steam turbine 5 is leaded up to and is arranged on condenser on pipeline 4 and is connected with the entrance of condensate tank 18, and the vapour stream flowing out from steam turbine 5 is condensed into water and enters condensate tank 18 after condenser 4.The entrance of the outlet of condensate tank 18 and condensate pump 19 is connected, the outlet of condensate pump 19 is connected by the water inlet of pipeline and condensate fine treater 20, the water outlet of condensate fine treater 20 is connected by the water inlet of pipeline and low pressure heater 21, the water outlet of low pressure heater 21 is connected by the water inlet of pipeline and de-aerator plant 22, and the water outlet of de-aerator plant 22 is connected by the water inlet of pipeline and service pump 23.The water of condensate tank 18 is transported to condensate fine treater 20 by condensate pump 19 and processes, entering low pressure heater 21 heats, water after low pressure heater 21 heating enters de-aerator plant 22 and carries out deoxygenation, and the water after deoxygenation is recycled by service pump 23.
Exhaust steam that steam turbine 5 is discharged outlet is separately leaded up to the vapour compressor 7 being arranged on pipeline and is connected with evaporative crystallizer 8, the steam flowing out from steam turbine 5 heats up and is pressed and delivered to evaporative crystallizer 8 through vapour compressor 7, another road of the vapour outlet of steam turbine 5 also can be connected by pipeline and evaporative crystallizer 8, and the exhaust steam of getting rid of from steam turbine 5 also can be delivered directly to evaporative crystallizer 8.The top of evaporative crystallizer 8 by pipeline and evaporative cooler 9 be connected, bottom by pipeline with dehydration separator 17 be connected.
The evaporative crystallizer 8 of the present embodiment is connected and is formed by tank body 8-1, vaporizer 8-2, spray thrower 8-3, drum 8-4, water circulating pump 8-5, concentrated water tank 8-6.Tank body 8-1 upper end is installed with drum 8-4 with screw threads for fastening web member, drum 8-4 is connected by pipeline and evaporative cooler 9, tank body 8-1 lower end is installed with concentrated water tank 8-6 with screw threads for fastening web member, the outer lower portion of tank body 8-1 is connected by pipeline and condensate tank 18, in tank body 8-1, weld connection has vaporizer 8-2, vaporizer 8-2 is the heat-exchanging tube bundle on tube sheet that is arranged on of vertically arranging, in tank body 8-1, the top of vaporizer 8-2 is provided with spray thrower 8-3, and spray thrower 8-3 is connected by the water circulating pump 8-5 on pipeline and concentrated water tank 8-6.Another road afterheat steam that steam turbine 5 is discharged enters evaporative crystallizer 8, flows and carries out heat exchange at the heat exchange pipe external surface of vaporizer 8-2, is condensed into water and flows to the interior participation thermal power generation of condensate tank 18 steam/water circulating.Waste water in concentrated water tank 8-6 is transported to spray thrower 8-3 through water circulating pump 8-5, spray thrower 8-3 is sprayed onto waste water in the heat transfer tube of vaporizer 8-2 and carries out evaporation concentration heat exchange, the heating steam rapid condensation heat radiation of heat exchange pipe external surface of vaporizer 8-2 makes to flow through, waste water heated live steam evaporating in vaporizer 8-2 enters drum 8-4, output to evaporative cooler 9 from the upper end of drum 8-4, the waste water of evaporation does not flow in condensed water case 8-6 in time, continues circulating and evaporating and is condensed into the strong brine that contains a large amount of crystal grains.Concentrated water tank 8-6 bottom is connected by pipeline and dehydration separator 17, and the strong brine of getting rid of in concentrated water tank 8-6 enters dehydration separator 17 and carries out processed, and the solid residue of generation is directly sent into grey factory and office reason.
Evaporative cooler 9 tops are connected with Industry Waste water tank 12 by the valve and the small pump 11 that are arranged on pipeline, the right side, bottom of evaporative cooler 9 is connected with Distillation recovery water tank 15 by the recovered water pump 10 being arranged on pipeline, the bottom of evaporative cooler 9 is connected by being arranged on valve on pipeline and the concentrated water tank 8-6 of evaporative crystallizer 8 bottoms, evaporative cooler 9 upper ends and vaccum-pumping equipment are connected, and will in evaporative cooler 9 and evaporative crystallizer 8, be evacuated by vaccum-pumping equipment.The live steam transporting from the drum 8-4 of evaporative crystallizer 8 enters and in evaporative cooler 9, carries out heat exchange condensation, vapor condensation liberated heat is taken away by air by the blower fan of evaporative cooler 9, and condensed water of condensation is delivered to Distillation recovery water tank 15 by recovered water pump 10 and stores re-using.
Industry Waste water tank 12 is connected by being arranged on the concentrated water tank 8-6 of small pump 11 and valve and evaporative crystallizer 8 on pipeline, the bottom of Industry Waste water tank 12 is connected with clarifying contaminated liquids pond 14 by the waste water transferpump 13 being arranged on pipeline, and clarifying contaminated liquids pond 14 is connected with dehydration separator 17 by the residual sea water pump 16 being arranged on pipeline.The strong brine of getting rid of in the concentrated water tank 8-6 of evaporative crystallizer 8 enters dehydration separator 17 and carries out processed, and the solid residue of generation is directly sent into grey factory and office reason, and the water of newly deviating from is sent into clarifying contaminated liquids pond 14 recovery that again circulates by the road, accomplishes wastewater zero discharge.
Claims (3)
1. one kind with fuel-burning power plant steam waste heat treatment of Power waste water plant, the outlet of service pump (23) is connected with the water-in of boiler (2) by the high pressure heater (1) being arranged on pipeline, the vapour outlet of boiler (2) is connected with the steam-in of steam turbine (5) by the superheater (3) being arranged on pipeline, vapour outlet one tunnel of steam turbine (5) is successively by being arranged on the condenser (4) on pipeline, condensate tank (18), condensate pump (19), condensate fine treater (20), low pressure heater (21), de-aerator plant (22) is connected with the water inlet of service pump (23), it is characterized in that: the exhaust steam that steam turbine (5) is discharged exports another road with evaporative crystallizer (8) is connected or be connected by being arranged on vapour compressor (7) on pipeline and evaporative crystallizer (8), the top of evaporative crystallizer (8) is connected by pipeline and evaporative cooler (9), bottom is connected by pipeline and dehydration separator (17), evaporative cooler (9) top is connected with Industry Waste water tank (12) by the valve and the small pump (11) that are arranged on pipeline, bottom is connected with Distillation recovery water tank (15) by the recovered water pump (10) being arranged on pipeline, bottom is connected by the valve and evaporative crystallizer (8) bottom that are arranged on pipeline, evaporative cooler (9) upper end and vaccum-pumping equipment are connected, Industry Waste water tank (12) is by being arranged on small pump on pipeline (11) and valve and evaporative crystallizer (8) is connected, bottom is connected with clarifying contaminated liquids pond (14) by the waste water transferpump (13) being arranged on pipeline, clarifying contaminated liquids pond (14) is connected with dehydration separator (17) by the residual sea water pump (16) being arranged on pipeline.
2. according to claim 1 with fuel-burning power plant steam waste heat treatment of Power waste water plant, it is characterized in that described evaporative crystallizer (8) is: be provided with the drum (8-4) being connected by pipeline and evaporative cooler (9) in tank body (8-1) upper end, bottom is provided with concentrated water tank (8-6), outer lower portion is connected by pipeline and condensate tank (18), in tank body (8-1), be provided with vaporizer (8-2), vaporizer (8-2) top is provided with the spray thrower (8-3) being connected by the water circulating pump on pipeline (8-5) and concentrated water tank (8-6).
3. according to claim 2 with fuel-burning power plant steam waste heat treatment of Power waste water plant, it is characterized in that be arranged on heat-exchanging tube bundle tube sheet on of described vaporizer (8-2) for vertically arranging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044558.5U CN203700098U (en) | 2014-01-23 | 2014-01-23 | Device for treating power plant waste water with steam waste heat of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044558.5U CN203700098U (en) | 2014-01-23 | 2014-01-23 | Device for treating power plant waste water with steam waste heat of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203700098U true CN203700098U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420044558.5U Expired - Lifetime CN203700098U (en) | 2014-01-23 | 2014-01-23 | Device for treating power plant waste water with steam waste heat of thermal power plant |
Country Status (1)
| Country | Link |
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| CN (1) | CN203700098U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279885A (en) * | 2014-08-08 | 2015-01-14 | 北京大学工学院包头研究院 | Direct air cooling condenser temperature lowering system |
| CN105833562A (en) * | 2016-05-03 | 2016-08-10 | 南京航空航天大学 | Vacuum evaporation concentration crystallization system and method |
| CN108928984A (en) * | 2018-08-08 | 2018-12-04 | 鞍钢股份有限公司 | Method for realizing zero emission of reverse osmosis strong brine in iron and steel enterprises |
| CN109824107A (en) * | 2019-03-26 | 2019-05-31 | 何新华 | A kind of power plant effluent evaporation process method and its waste water evaporation process system |
| CN114111103A (en) * | 2021-11-12 | 2022-03-01 | 新乡市双诚环保设备有限公司 | Waste liquid cyclic utilization processing system based on heat pump |
| CN114812217A (en) * | 2022-03-09 | 2022-07-29 | 郑州轻工业大学 | Heat pump for recovering waste heat of thermal power plant |
-
2014
- 2014-01-23 CN CN201420044558.5U patent/CN203700098U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279885A (en) * | 2014-08-08 | 2015-01-14 | 北京大学工学院包头研究院 | Direct air cooling condenser temperature lowering system |
| CN105833562A (en) * | 2016-05-03 | 2016-08-10 | 南京航空航天大学 | Vacuum evaporation concentration crystallization system and method |
| CN108928984A (en) * | 2018-08-08 | 2018-12-04 | 鞍钢股份有限公司 | Method for realizing zero emission of reverse osmosis strong brine in iron and steel enterprises |
| CN108928984B (en) * | 2018-08-08 | 2021-07-20 | 鞍钢股份有限公司 | A method for zero discharge of reverse osmosis concentrated brine in iron and steel enterprises |
| CN109824107A (en) * | 2019-03-26 | 2019-05-31 | 何新华 | A kind of power plant effluent evaporation process method and its waste water evaporation process system |
| CN109824107B (en) * | 2019-03-26 | 2022-06-24 | 何新华 | Power plant wastewater evaporation treatment method and wastewater evaporation treatment system thereof |
| CN114111103A (en) * | 2021-11-12 | 2022-03-01 | 新乡市双诚环保设备有限公司 | Waste liquid cyclic utilization processing system based on heat pump |
| CN114812217A (en) * | 2022-03-09 | 2022-07-29 | 郑州轻工业大学 | Heat pump for recovering waste heat of thermal power plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |