CN101109539A - Method for enlarging thermoelectricity co-generating heat supplying scale - Google Patents
Method for enlarging thermoelectricity co-generating heat supplying scale Download PDFInfo
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- CN101109539A CN101109539A CNA2006100990435A CN200610099043A CN101109539A CN 101109539 A CN101109539 A CN 101109539A CN A2006100990435 A CNA2006100990435 A CN A2006100990435A CN 200610099043 A CN200610099043 A CN 200610099043A CN 101109539 A CN101109539 A CN 101109539A
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
A method for increasing the heat-supplying scale of cogeneration combining an absorbing thermal pump unit with a steam heat exchanger is provided. The system increases the heat supplying capability of an existing thermal power plant without changing the installed capacity and the supplied steam quantity of the power plant, and the increased heat-supplying capability is equivalent to the heat of not-consumed steam. The system comprises an absorbing thermal pump unit, a thermal power plant, a building needing heating, a steam-water heat exchanger, flow adjusters, various pumps and pipelines. The steam from the thermal power plant is input into the absorbing thermal pump unit, which changes the phenomenon of energy waste that the heat-supplying steam only exchanges heat but doesn't work; the temperature of the heat-supplying return water is increased to about 80 centigrade by the thermal pump unit, and then the return water is mixed with the heat-supplying return water entered into the steam-water heat exchanger, and exchanges heat with the steam, so high-temperature heat-supplying water is prepared, and supplies heat to the building surrounding by the heat-supplying pipe network. The low-temperature heat source entered into the heat pump unit is the waste circulation cooling water from the turbine of the power plant, in this way the waste heat is recovered.
Description
Affiliated technical field
The present invention relates in the thermoelectricity co-generating heat supplying form to adopt that absorption heat pump and vapour---water-to-water heat exchanger is used in combination a kind of method that enlarges heat supplying scale.
Background technology
The present central heating of China has several principal modes such as fire coal/thermo oil boiler heat supply, cogeneration of heat and power.Boiler heat supplying is coal combustion, wet goods preparation of fuel steam or high-temperature-hot-water and gives the user by pipeline supply that because boiler efficiency is low at present, the energy does not have the ladder utilization, causes energy waste, environment is produced pollute, and will be limited by society gradually or eliminate.
The thermoelectricity co-generating heat supplying form, energy is utilized by ladder, and high-order energy is used for generating, and efficient is higher relatively, is present comparatively desirable central heating form.Its operation principle is: the condensing turbine group of drawing gas extracts the high temperature and high pressure steam of certain standard from steam turbine when generating, general pressure is 0.6Mpa, and temperature is about 158 ℃.Steam directly changes 130 ℃ of high-temperature-hot-waters into by steam water heat exchanger and is transported to space heating by pipeline.In this heat supplying process, steam only is used for conducting heat and not acting in heat exchanger, and the calorific value of energy is constant, but steam
Descending, fail to make full use of the matter of steam energy, is the waste that energy is used.
Generally speaking, have only about 22% to change electric energy in the fuel combustion gross calorific power during steam power plant Winter heat supply, about 37% are used for heat supply, and the recirculated cooling water by turbine condenser scatters in the environment more than 30%.This cooling water belongs to low grade heat energy, and is lower because of containing
Can not use by direct heating, wasted in the environment substantially at present, effectively do not recycled.
Summary of the invention
The present invention is a kind of heat supply method that adopts the absorption type heat pump assembly to combine with vapor heat exchanger, the quantity of steam that this system does not change existing steam power plant's installed capacity and provides, and improved its heat capacity, and the heat capacity that increases is equivalent to not consume the heat of steam.
The technical solution used in the present invention is: system and device is by absorption type heat pump assembly, steam power plant, vapour---water-to-water heat exchanger, form by the resident of heat demand or commercial building, flow regulator, various water pump, various pipeline.During heat supply, originally the pressure that was used to enter steam water heat exchanger is 0.6Mpa, temperature is the steam about 158 ℃, by flow regulator, separated into two parts, wherein a part enters steam water heat exchanger, another part enters absorption heat pump, appropriately be used from the acting and two aspects of conducting heat, reasonably utilized the quality and quantity of energy, realized the effective energy.The low-temperature heat source that enters source pump heat dump end is the power plant steam turbine recirculated cooling water, has realized the recycling to used heat.Absorption heat pump radiator end is brought up to 80 ℃ of left and right sides hot water to the heat supply return water temperature, with vapour--and the heat supply backwater of water-to-water heat exchanger mixes, and the heat that provides when reducing steam heat-exchanging so just can prepare the heat supply water about 130 ℃.Hot water to building heat supplying, returns source pump by heat supply pipeline afterwards again, recycles.
In this system, when utilizing enclosed steam turbine recirculated cooling water as low-temperature heat source, the temperature that enters source pump is generally 15 ℃-35 ℃, regulate the unit operating mode, it is consistent with the temperature that enters condenser of power plant former design to make cooling water discharge the back from unit, turn back in the plant condenser, rise again, get back to unit then and continue to recycle through heat absorption back temperature; As when utilizing open type steam turbine recirculated cooling water as low-temperature heat source, the temperature that enters source pump is generally 10 ℃-30 ℃, and cooling water enters its tow taste heat of absorption as much as possible behind the unit, afterwards with cooling-water drain in environment.
The invention has the beneficial effects as follows and slattern when utilizing steam power plant's part heating steam heat exchange
Lifting recirculated cooling water used heat
And then promote its grade, be used for mixing by the preparation high-temperature-hot-water with the heat supply backwater.Utilize absorption heat pump, be equivalent to not consume the heat of steam, the Waste Heat Recovery utilization the recirculated cooling water that emits by cooling tower or natural water increases considerably area of heat-supply service, and society is produced huge economy and dynamogenetic value.
Description of drawings
The present invention will be further described below in conjunction with Figure of description 1.
Fig. 1 is a systematic schematic diagram of the present invention.
1. steam power plants among Fig. 1,2. steam, 3. high-temperature-hot-water, 4. water outlet, 5. steam turbine circulation cooling backwater, 6. absorption heat pump are cooled off in the steam turbine circulation, 7.80 ℃ hot water, 8. heat supply backwater, 9. building or heat supply network, 10. heat supply backwater, 11. high-temperature-hot-waters, 12. vapour---water-to-water heat exchanger, 13. steam, 14. return the water of boiler, 15. steam, 16. high-temperature-hot-waters.
The specific embodiment
In Fig. 1, during heat supply, extracting pressure from steam power plant (1) steam turbine is 0.6Mpa, temperature is the steam (2) about 158 ℃, is divided into two parts by adjusting, and a part of steam (15) enters absorption heat pump (6), be used from the acting and two aspects of conducting heat, rationally utilize can quality and quantity, realize the effective energy, steam becomes high-temperature-hot-water (16) and returns boiler afterwards.It is 80 ℃ hot water (7) that source pump rises to temperature to heat supply backwater (8), and enters vapour--the heat supply backwater (10) of water-to-water heat exchanger mixes; Another part steam (13) enters vapour---water-to-water heat exchanger (12), after the hot water mixing water heat exchange of heat supply backwater and heat pump preparation, become the water (14) that returns boiler, and the high-temperature-hot-water (3) that mixes with high-temperature-hot-water (16) behind the general designation release latent heat returns boiler.Vapour---water-to-water heat exchanger is got high-temperature-hot-water (11) in return and is entered heating network to building that heat demand is arranged or heat supply network (9) heat supply; Power plant steam turbine circulation cooling water outlet (4) enters source pump heat dump end, low-temperature heat source as unit, be extracted and become steam turbine circulation cooling backwater (5) behind the heat and return the power plant steam turbine condenser or be discharged in the natural environment, realized recycling used heat.
Claims (5)
1. the present invention is a kind of method that adopts the expansion thermoelectricity co-generating heat supplying scale that the absorption type heat pump assembly is used in combination with vapor heat exchanger.It is characterized in that: this system and device is by absorption type heat pump assembly, steam power plant, the resident that heat demand is arranged or commercial building, vapour---and water-to-water heat exchanger, flow regulator, various water pump, various pipeline are formed.
2. the method for expansion thermoelectricity co-generating heat supplying scale according to claim 1 is characterized in that: the absorption type heat pump assembly heats temperature and can reach more than 80 ℃.
3. the method for expansion thermoelectricity co-generating heat supplying scale according to claim 1 is characterized in that: steam power plant's steam drive absorption type heat pump work appropriately is used from the acting and two aspects of conducting heat.The low-temperature heat source that enters source pump is the power plant steam turbine waste circulating cooling water, has realized the recycling to used heat.
4. according to the method for the described expansion thermoelectricity co-generating heat supplying scale of claim 1, it is characterized in that: the high-temperature steam that power plant extracts is divided into two parts by adjusting, and a part enters source pump, becomes high-temperature-hot-water after the work and returns boiler of power plant, recycles; Unit improves back---water-to-water heat exchanger enters vapour with another part---steam heat-exchanging of water that is mixed into vapour with all the other heat supply backwater to the heat supply return water temperature, and preparation high-temperature heat supply water utilizes heating network to building heat supplying.
5. the method for expansion thermoelectricity co-generating heat supplying scale according to claim 1 is characterized in that: steam that absorption heat pump is required and low-temperature heat source are by the heat demand decision, are regulated automatically by flow regulator.The conveying of water and steam utilizes various utilidors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200610099043A CN101109539B (en) | 2006-07-17 | 2006-07-17 | Method for enlarging thermoelectricity co-generating heat supplying scale |
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| CN200610099043A CN101109539B (en) | 2006-07-17 | 2006-07-17 | Method for enlarging thermoelectricity co-generating heat supplying scale |
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| CN101109539A true CN101109539A (en) | 2008-01-23 |
| CN101109539B CN101109539B (en) | 2010-05-12 |
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| CN200610099043A Expired - Fee Related CN101109539B (en) | 2006-07-17 | 2006-07-17 | Method for enlarging thermoelectricity co-generating heat supplying scale |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345895A (en) * | 2011-07-20 | 2012-02-08 | 双良节能系统股份有限公司 | Steam-water heating system for thermal power plant |
| CN101672203B (en) * | 2009-10-15 | 2012-05-30 | 华北电力大学 | Adjusting method for heating steam of cogeneration system |
| CN101798941B (en) * | 2010-01-08 | 2013-05-01 | 华北电力大学 | Optimal cold source heating network heater and determination method for parameter thereof |
| CN103673031A (en) * | 2013-12-04 | 2014-03-26 | 大连葆光节能空调设备厂 | System capable of greatly lowering combined heat and power generation centralized heating temperature |
| CN108151111A (en) * | 2017-12-20 | 2018-06-12 | 大连葆光节能空调设备厂 | The method that industrial exhaust heat heats primary net return water |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2615346Y (en) * | 2002-11-28 | 2004-05-12 | 江苏双良空调设备股份有限公司 | Heating, electric and cooling triple combined supply system with steam type bromine cooling machine and thermal pump as cold and heat sources |
| CN1279322C (en) * | 2004-10-28 | 2006-10-11 | 上海交通大学 | Household cold, heat and power triple supply system adopting vapor compression type electrothermal pump |
-
2006
- 2006-07-17 CN CN200610099043A patent/CN101109539B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672203B (en) * | 2009-10-15 | 2012-05-30 | 华北电力大学 | Adjusting method for heating steam of cogeneration system |
| CN101798941B (en) * | 2010-01-08 | 2013-05-01 | 华北电力大学 | Optimal cold source heating network heater and determination method for parameter thereof |
| CN102345895A (en) * | 2011-07-20 | 2012-02-08 | 双良节能系统股份有限公司 | Steam-water heating system for thermal power plant |
| CN102345895B (en) * | 2011-07-20 | 2013-06-05 | 双良节能系统股份有限公司 | Steam-water heating system for thermal power plant |
| CN103673031A (en) * | 2013-12-04 | 2014-03-26 | 大连葆光节能空调设备厂 | System capable of greatly lowering combined heat and power generation centralized heating temperature |
| CN103673031B (en) * | 2013-12-04 | 2016-06-29 | 大连葆光节能空调设备厂 | The system of cogeneration of heat and power central heating temperature is greatly reduced |
| CN108151111A (en) * | 2017-12-20 | 2018-06-12 | 大连葆光节能空调设备厂 | The method that industrial exhaust heat heats primary net return water |
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| CN101109539B (en) | 2010-05-12 |
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Owner name: DALIAN BAOGUANG ENERGY-SAVING CONDITIONER EQUIPMEN Free format text: FORMER OWNER: BAOGUANG DALIAN ENERGY SAVING TECHNOLOGY RESEARCH INSTITUTE CO., LTD. Effective date: 20150724 |
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Effective date of registration: 20150724 Address after: 116600 No. 8-21 west the Yellow Sea Road, Dalian Development Zone, Liaoning Patentee after: Dalian Baoguang Energy-saving Air Conditioning Equipment Plant Address before: 903 room 18, future science and technology incubation garden, No. 116600, seven northeast street, Dalian Development Zone, Liaoning, China Patentee before: Baoguang (Dalian) Energy Conservation Technology Institute Co., Ltd. |
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Granted publication date: 20100512 Termination date: 20180717 |
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