CN101368749B - Recirculated water low-level regenerated energy heating system of cooling column in thermal plant and refrigeration plant - Google Patents

Recirculated water low-level regenerated energy heating system of cooling column in thermal plant and refrigeration plant Download PDF

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Publication number
CN101368749B
CN101368749B CN2007101447690A CN200710144769A CN101368749B CN 101368749 B CN101368749 B CN 101368749B CN 2007101447690 A CN2007101447690 A CN 2007101447690A CN 200710144769 A CN200710144769 A CN 200710144769A CN 101368749 B CN101368749 B CN 101368749B
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water
heat
energy
pump
circulation
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CN101368749A (en
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李遇春
赵有林
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

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Abstract

The invention discloses a circulation water low-level renewable energy heating system of the cooling towers in thermal power plants and refrigeration enterprises; the heat energy is extracted from themiddle or lower-level renewable energy by a thermal pump set; the temperature of the heat-supply once side water-supply reaches approximately 60 DEG C. the low-level renewal energy heating system canoperate efficiently, stably and economically. The low quality heat energy is converted into high quality heat energy on the premise of having no change on the enterprise device in operation; the highquality heat energy is outputted by a heat conveying device. The heating system is composed of a water source thermal pump 10, a renewable energy collecting device 9 and a heating device 11; the water source thermal pump is a closed circulation pipeline with heat exchange medium and composed of the serial connection of an evaporator 4, a compressor 5, a condenser 6 and an expansion valve 3; the renewable energy collecting device is constructed that a cooling water circulation water pump 1 is connected with a circulation water outlet pipeline of a steam condenser; the pressurized low quality hot water is connected with the water inlet of the water source thermal pump 10 through an electronic valve 2; the water outlet of the water source thermal pump 10 is connected with a water mixer 8 through a pipeline; the heating device 11 adopts the radiator group 12 of the heat consumer to construct the circulation pipe network through a heat network circulation pump 7.

Description

Thermal power plant and refrigeration enterprise cooling-tower circulating water low level renewable energy heating installation
Technical field
The present invention relates to civilian heating system, specifically utilize the heating installation of cooling-tower circulating water low level renewable energy, belong to environment-friendly type reusing of energy source field.
Background technology
Circulating water in turbine condenser has been taken away a large amount of heat energy in thermal power plant by cooling tower at present.The thermal efficiency in thermal power plant on average has only about 35%, and most of heat energy of fuel has caused the huge waste of the energy through cooling tower being discharged in the atmosphere in vain.And be discharged into atmosphere, and increase global warming, caused huge environmental pollution.The outlet of thermal power plant circulating water in turbine condenser and big-and-middle-sized refrigeration enterprise cooling-tower circulating water since mean temperature about 33 ℃, middle low level renewable energy, this recirculated water is because water yield is big, annual temperature fluctuation is very little, containing huge thermal resource, is a kind of desirable renewable available discarded energy.But since middle low level renewable energy utilize the cost height, equipment investment is big, technical difficulty is bigger, the thermal resource of this part is not fully paid attention to and is utilized.
Summary of the invention
The object of the invention is to disclose a kind of thermal power plant and refrigeration enterprise cooling-tower circulating water low level renewable energy heating installation.Extract heat for low level renewable energy in this through source pump, the primary side supply water temperature of heat supply is reached about 60 ℃, through thermal energy conversion device thermotropism user heat supply.Under metastable water temperature, can be efficient, stable, operation economically.Low grade heat energy is converted into high-grade heat energy, is not moving thermal power plant and the refrigeration business equipment is done under the prerequisite of change, through heat transfer apparatus heat energy is exported, to satisfy user's heat demand to existing.
The present invention is made of water resource heat pump 10 and regeneration energy harvester 9, heating plant 11, it is characterized in that: water resource heat pump is the closed circulation pipeline that is connected in series the heat transferring medium that constitutes by evaporimeter 4 and compressor 5, condenser 6, expansion valve 3; Described regeneration can connect condenser circulating water outlet pipeline by cooling water cycle water pump 1 by harvester, low-grade hot water after the pressurization is linked into water resource heat pump 10 water inlets through electric control valve 2 one tunnel, another road is connected to water-water jet 8, and water resource heat pump 10 water outlets are connected to water-water jet 8 by pipeline; The recirculated water that has discharged heat energy directly is discharged in the water tower pond through water-water jet 8 without water tower 13 coolings.Heating plant 11 is formed circulation pipe network by hot user's radiator group 12 through pumps for hot water supply net 7.
Description of drawings
Fig. 1 is principle of the invention figure.
The specific embodiment
As seen from the figure, on condenser circulating water outlet pipeline, increase a pipeline, after 1 pressurization of cooling water cycle water pump, the recirculated water low grade heat energy is extracted and is delivered to water resource heat pump 10 units, under the driving of electric energy, water resource heat pump 10 units are converted into high-grade heat energy with low grade heat energy, through the heat energy conveying device to user's heat supply.The recirculated water that has discharged heat energy directly is discharged in the water tower pond through water-water jet 8 without water tower 13 coolings.Water resource heat pump 10 units are converted into high-grade heat energy with low grade heat energy, through heating plant 11 to user's heat supply.
Huge pollution has been caused to environment in the thermal power plant since being born.The heat energy of fuel is used as much as possible, improves the ratio of using energy source and pollutant effulent discharging, this be at home and abroad the working energy person in the problem of making great efforts to explore always.Therefore the heat of how the low temperature circulation being slept is used, improve rate of energy, improve the thermal efficiency in power plant, realize energy-saving and emission-reduction, this is the problem that everybody pays close attention to, and thermal power plant recirculated water is a huge resource, and annual temperature fluctuation is very little, mean temperature is a kind of desirable renewable available discarded energy about 33 ℃.The present invention extracts heat from thermal power plant recirculated cooling water and big-and-middle-sized refrigeration plant coolant outlet water resource, the hot machine of water source heat pump technology and power plant of maturation and water conservancy project technology is in one, under metastable water temperature, efficient, stable, carry out heating operation economically.
The present invention can regulate output automatically with the outdoor temperature variation. Its advantage is: efficient energy-saving, the low-grade exhaust heat of discharging in the existing recycling technology in the thermal power plant system is reclaimed, and make the heat resource of coal by further exploitation recovery, increase substantially thermal power plant Thermal Synthetic efficient and economic benefit; Make efficiency of energy utilization reach more than 4 times of traditional approach; Any flue dust of discharging and harmful substance have been avoided in clean environmental protection, and social benefit is remarkable; Water saving, province ground, saving resource; Safe and reliable, unit operation is stable, maintenance is simple, big change is not done by the generating plant circulation-water system, as long as accurate Calculation is determined pump-out and water conservancy project quantity of circulating water and the mixed water yield, and draw water a little and increase the mixing water drainpipe to the water tower tank in pipeline increase downstream, water temperature and the flow of the former circulation in power plant are not all changed, the generating plant circulation-water system safety operation is not produced any impact; Reduce investment outlay, operating cost is low, the automaticity height, operating cost is few.

Claims (1)

1. thermal power plant and refrigeration enterprise cooling-tower circulating water low level renewable energy heating installation; Be to be made of water resource heat pump (10) and regeneration energy harvester (9), heating plant (11), it is characterized in that: water resource heat pump is the closed circulation pipeline that is connected in series the heat transferring medium that constitutes by evaporimeter (4) and compressor (5), condenser (6), expansion valve (3); Described regeneration can connect condenser circulating water outlet pipeline by cooling water cycle water pump (1) by harvester, low-grade hot water after the pressurization is linked into water resource heat pump (10) water inlet through electric control valve (2) a tunnel, another road is connected to water-water jet (8), and water resource heat pump (10) water outlet is connected to water-water jet (8) by pipeline; The recirculated water that has discharged heat energy directly is discharged in the water tower pond through water-water jet (8) without water tower (13) cooling; Heating plant (11) is formed circulation pipe network by hot user's radiator group (12) through pumps for hot water supply net (7).
CN2007101447690A 2007-12-07 2007-12-07 Recirculated water low-level regenerated energy heating system of cooling column in thermal plant and refrigeration plant Expired - Fee Related CN101368749B (en)

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CN2007101447690A CN101368749B (en) 2007-12-07 2007-12-07 Recirculated water low-level regenerated energy heating system of cooling column in thermal plant and refrigeration plant

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Application Number Priority Date Filing Date Title
CN2007101447690A CN101368749B (en) 2007-12-07 2007-12-07 Recirculated water low-level regenerated energy heating system of cooling column in thermal plant and refrigeration plant

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CN101368749B true CN101368749B (en) 2010-06-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101865491A (en) * 2010-06-23 2010-10-20 赵德明 Method for realizing energy saving and emission reduction by utilizing waste heat in power plant circulating cooling water

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102478324A (en) * 2010-11-30 2012-05-30 张耀中 Air energy heat pump cold-warm-hot integrated equipment
CN102980346A (en) * 2012-12-10 2013-03-20 安徽日源环保能源科技有限公司 Industrial equipment cooling system and control method thereof
CN106979044A (en) * 2017-04-21 2017-07-25 重庆大学 Pump type heat turbine condenser condensing heating system
CN110173735A (en) * 2019-05-20 2019-08-27 上海电力学院 Self-feedback heating system is coupled using the water resource heat pump front and rear of circulating water afterheat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4660511A (en) * 1986-04-01 1987-04-28 Anderson J Hilbert Flue gas heat recovery system
CN1369682A (en) * 2001-02-13 2002-09-18 徐生恒 Liquid heat supply system using afterheat as energy source
CN201138011Y (en) * 2007-12-07 2008-10-22 李遇春 Renewable power source heating apparatus of cooling column recycled water at low position of thermal power plant and refrigeration enterprise

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4660511A (en) * 1986-04-01 1987-04-28 Anderson J Hilbert Flue gas heat recovery system
CN1369682A (en) * 2001-02-13 2002-09-18 徐生恒 Liquid heat supply system using afterheat as energy source
CN201138011Y (en) * 2007-12-07 2008-10-22 李遇春 Renewable power source heating apparatus of cooling column recycled water at low position of thermal power plant and refrigeration enterprise

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101865491A (en) * 2010-06-23 2010-10-20 赵德明 Method for realizing energy saving and emission reduction by utilizing waste heat in power plant circulating cooling water

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