CN204851350U - Utilize living water heating system of power plant's exhaust steam waste heat - Google Patents

Utilize living water heating system of power plant's exhaust steam waste heat Download PDF

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Publication number
CN204851350U
CN204851350U CN201520607750.5U CN201520607750U CN204851350U CN 204851350 U CN204851350 U CN 204851350U CN 201520607750 U CN201520607750 U CN 201520607750U CN 204851350 U CN204851350 U CN 204851350U
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CN
China
Prior art keywords
water
unboiled
heat
pipeline
exhaust steam
Prior art date
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 - Fee Related
Application number
CN201520607750.5U
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Chinese (zh)
Inventor
焦海平
马永辉
史新平
孙军
席芳
王晓维
杨雪梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHAANXI HUADIAN YAOCHI POWER GENERATION CO Ltd
Original Assignee
SHAANXI HUADIAN YAOCHI POWER GENERATION CO Ltd
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Application filed by SHAANXI HUADIAN YAOCHI POWER GENERATION CO Ltd filed Critical SHAANXI HUADIAN YAOCHI POWER GENERATION CO Ltd
Priority to CN201520607750.5U priority Critical patent/CN204851350U/en
Application granted granted Critical
Publication of CN204851350U publication Critical patent/CN204851350U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to an utilize living water heating system of power plant's exhaust steam waste heat, including the steam turbine, the steam turbine is connected with the air cooling island, and some exhaust steam that steam turbine acting back produced provide heat energy for the outer hot user of factory through heat supply network circulation system, sets up a reposition of redundant personnel pipeline on hot user's the heat supply network circulating water return water pipe the factory outside, and the terminal return water pipe of the company of returning of reposition of redundant personnel pipeline shunts the pipeline front portion and sets up vertical centrifugal water pump and electrical control valve, shunts to pass through plate heat exchanger in the middle part of the pipeline and be connected with unboiled water circulation system, living water circulating system include the unboiled water pipeline, the unboiled water water source is connected to the front end of unboiled water pipeline, the facility is handled to the end -to -end connection unboiled water of unboiled water pipeline. The unboiled water pipeline on be provided with the thermometer, the thermometer is connected with the temperature controller, the temperature controller is connected with the electrical control valve. The utility model discloses can enough satisfy the unboiled water handles the chemistry system water of facility and to the requirement of unboiled water temperature, has also reduced the thermal discharge of steam turbine exhaust steam to the environment.

Description

A kind of raw water heating system utilizing exhaust steam of electric power plant waste heat
Technical field
The invention belongs to balance of power plant field, particularly a kind of raw water heating system utilizing exhaust steam of electric power plant waste heat.
Background technique
For satisfied chemical water making device winter operation is to the requirement of water temperature, power plant is generally all provided with raw water heater.Raw water heater generally adopts vapor-water type surface heat exchanger or vapor-water type hybrid heater to heat unboiled water.(1) carbonated drink surface-type heat exchanger adds hot vapour source and generally adopts extracted steam from turbine (>=0.3MPa) to supply, vapour amount is less, and comparatively far away owing to changing waterwheel spacing steam turbine building, drain recovery difficulty, cause working medium and heat waste, and this some vapor loses follow-up acting ability.(2) steam-water mixture heater adds hot vapour source and generally adopts the extracted steam from turbine (>=0.6MPa) of higher quality to supply, run improper meeting and cause raw water pipe overtemperature, damage is caused to pipeline, and the steam making this part have higher quality loses follow-up acting ability, the working medium of high-quality has been mixed in unboiled water.Above two kinds of modes have all extracted the steam that do not do work completely to heat unboiled water, cause the minimizing of generated energy.
In chemical water making device, the reverse osmosis technology that application is more at present, have certain requirement to the temperature of unboiled water, guarantee reverse osmosis equipment has higher water rate.And the surface water in winter or underground water water temperature all can not meet the requirement of reverse osmosis to water temperature, differential pressure high, processed water power consumption is higher, water rate is low to cause reverse osmosis to run.
In process of production, a large amount of turbine discharge latent heats of vaporization is scattered and disappeared in an atmosphere by Air-Cooling Island, causes a large amount of thermal waste, if by its all or part of utilization, will be able to reduce to the heat energy discharge in environment.
Above-mentioned situation both increases the operating cost of power plant, therefore needs a kind of technology utilizing Direct Air-cooled Unit exhaust steam residual heat to heat unboiled water.
Summary of the invention
The purpose of this utility model is to provide a kind of raw water heating system utilizing exhaust steam of electric power plant waste heat, solves the raw water heater existed in prior art and adds hot vapour source waste high-quality vapour source, waste working medium, reduces the problems such as generated energy, exhaust steam residual heat can not get at the bottom of effective utilization, winterization length of schooling water efficiency.
In order to solve the problem, the technical solution of the utility model is:
A kind of raw water heating system utilizing exhaust steam of electric power plant waste heat, comprise steam turbine, steam turbine is connected with Air-Cooling Island, the part exhaust steam produced after steam turbine acting provides heat energy by the heat supply network circulatory system to heat user outside factory, outside factory heat user heat supply network circulating water water return pipeline on a shunt conduit is set, shunt conduit end returns the waterpipe that is linked back, and shunt conduit front portion arranges vertical centrifugal water pump and electric control valve, is connected in the middle part of shunt conduit by plate type heat exchanger with the unboiled water circulatory system; The described unboiled water circulatory system comprises raw water pipe, and the front end of raw water pipe connects unboiled water water source, and the end of raw water pipe connects unboiled water treatment facility.
Described raw water pipe is provided with thermometer, and thermometer is connected with temp controller, and temp controller is connected with electric control valve.
The beneficial effects of the utility model:
After the backwater of heat user outside factory is boosted by the vertical centrifugal water pump of shunt conduit by the utility model, through plate type heat exchanger heating unboiled water, reduce the return water temperature of heat user outside factory simultaneously, improve the caloric receptivity of the heat supply network circulatory system, thus reach the object absorbing exhaust steam in steam turbine waste heat, the utility model can either meet the chemistry water of unboiled water treatment facility to the requirement of unboiled water water temperature, decreases the thermal discharge of exhaust steam in steam turbine to environment.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
In figure, 1-steam turbine, the 2-heat supply network circulatory system, heat user outside 3-factory, 4-water return pipeline, 5-shunt conduit, 6-vertical centrifugal water pump, 7-electric control valve, 8-plate type heat exchanger, 9-raw water pipe, 10-unboiled water water source, 11-unboiled water treatment facility, 12-thermometer, 13-temp controller, 14-Air-Cooling Island.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further detailed, a kind of raw water heating system utilizing exhaust steam of electric power plant waste heat as shown in Figure 1, comprise steam turbine 1, steam turbine 1 is connected with Air-Cooling Island 14, the part exhaust steam produced after steam turbine 1 does work provides heat energy by the heat supply network circulatory system 2 to heat user 3 outside factory, , outside factory heat user 3 heat supply network circulating water water return pipeline 4 on a shunt conduit 5 is set, shunt conduit 5 end returns the waterpipe 4 that is linked back, shunt conduit 5 front portion arranges vertical centrifugal water pump 6 and electric control valve 7, be connected with the unboiled water circulatory system by plate type heat exchanger 8 in the middle part of shunt conduit 5, the described unboiled water circulatory system comprises raw water pipe 9, and the front end of raw water pipe 9 connects unboiled water water source 10, and the end of raw water pipe 9 connects unboiled water treatment facility 11.
Described raw water pipe is provided with thermometer 12, thermometer 12 is connected with temp controller 13, and temp controller 13 is connected with electric control valve 7.
Introduce using process of the present utility model below:
Utilize a vertical centrifugal water pump 6 to boost, the backwater of heat user 3 water return pipeline 4 outside part factory is extracted out, enter after plate type heat exchanger 8 carries out heat exchange with unboiled water, again import water return pipeline 4;
Unboiled water outlet temperature is detected at the thermometer 12 of raw water pipe 9, temperature signal is accessed temp controller 13, temp controller 13 through with preset temperature value comparison operation after, send instruction, control the folding of electric control valve 7, regulate the hot water flow of water return pipeline 5, make unboiled water outlet temperature meet the requirement of unboiled water treatment facility 11 pairs of water temperatures.
If the utility model is in 960000 tons, water consumption unboiled water processed every year, by reclaiming the waste heat of exhaust steam, can save mark 422 tons, coal, save demineralized water 6700 tons, by 450 yuan, mark coal per ton, demineralized water per ton 8 yuan calculating, maintenance cost saves about 24.4 ten thousand yuan every year
Content of the present utility model is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading the utility model specification to any equivalence that technical solutions of the utility model are taked, is claim of the present utility model and contains.

Claims (2)

1. one kind utilizes the raw water heating system of exhaust steam of electric power plant waste heat, comprise steam turbine (1), steam turbine (1) is connected with Air-Cooling Island (14), the part exhaust steam produced after steam turbine (1) acting provides heat energy by the heat supply network circulatory system (2) to heat user outside factory (3), it is characterized in that: outside factory heat user (3) heat supply network circulating water water return pipeline (4) on a shunt conduit (5) is set, shunt conduit (5) end returns the waterpipe that is linked back (4), shunt conduit (5) front portion arranges vertical centrifugal water pump (6) and electric control valve (7), shunt conduit (5) middle part is connected with the unboiled water circulatory system by plate type heat exchanger (8), the described unboiled water circulatory system comprises raw water pipe (9), and the front end of raw water pipe (9) connects unboiled water water source (10), and the end of raw water pipe (9) connects unboiled water treatment facility (11).
2. the raw water heating system utilizing exhaust steam of electric power plant waste heat according to claim 1, it is characterized in that: described raw water pipe (9) is provided with thermometer (12), thermometer (12) is connected with temp controller (13), and temp controller (13) is connected with electric control valve (7).
CN201520607750.5U 2015-08-13 2015-08-13 Utilize living water heating system of power plant's exhaust steam waste heat Expired - Fee Related CN204851350U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520607750.5U CN204851350U (en) 2015-08-13 2015-08-13 Utilize living water heating system of power plant's exhaust steam waste heat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520607750.5U CN204851350U (en) 2015-08-13 2015-08-13 Utilize living water heating system of power plant's exhaust steam waste heat

Publications (1)

Publication Number Publication Date
CN204851350U true CN204851350U (en) 2015-12-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112503608A (en) * 2020-11-24 2021-03-16 中国电力工程顾问集团中南电力设计院有限公司 Raw water heating system of thermal power plant and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112503608A (en) * 2020-11-24 2021-03-16 中国电力工程顾问集团中南电力设计院有限公司 Raw water heating system of thermal power plant and control method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151209

Termination date: 20180813