CN102305110B - Device for transforming terrestrial heat and waste heat into power cycle and supplying heat - Google Patents
Device for transforming terrestrial heat and waste heat into power cycle and supplying heat Download PDFInfo
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- CN102305110B CN102305110B CN 201110217700 CN201110217700A CN102305110B CN 102305110 B CN102305110 B CN 102305110B CN 201110217700 CN201110217700 CN 201110217700 CN 201110217700 A CN201110217700 A CN 201110217700A CN 102305110 B CN102305110 B CN 102305110B
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention provides a device for realizing power output and hot water supply by using terrestrial heat and waste heat resources and especially middle-low temperature terrestrial heat and waste heat resources. The device provided by the invention comprises a heat source inlet, a heat source outlet, a multi-tube standpipe generator, a multi-tube standpipe absorber, a condenser, a steam turbine, a liquid storage tank, a solution pump, a first heat exchanger, a second heat exchanger, a reducing valve, a domestic hot water tank, a cooling water pump, a cooling water tank, a water replenishing port of the cooling water tank, a water outlet of the domestic hot water tank and a regulating valve. The device has the beneficial effects that a low-boiling binary mixture is taken as cycle fluid so as to reduce the irreversible loss during a heat transfer process; the condenser is additionally arranged so as to improve the heat utilization efficiency of steam turbine exhaust; the generator and the absorber adopt the multi-tube standpipe falling-film heat exchangers so as to realize compact structure and reliable safety performance; and meanwhile power output and hot water supply are realized so as to effectively improve the utilization efficiency of low-grade energy.
Description
[technical field]
The present invention relates to underground heat particularly in low temperature underground heat and residual heat resources as power cycle and heat supply or the heater device of thermal source.
[background technique]
China's energy utilization rate is only 33% left and right, and is lower by approximately 10% than developed country.China's geothermal resources total amount is very abundant.The existing mature technology of high-temperature geothermal is used at present, but middle low temperature underground heat and waste heat also are not utilized effectively, and are at present the technical development stage.China's geothermal resources are except Yunnan-Tibet and Taiwan, all the other most areas are low-temperature geothermal resource in the convection of 60～120 ℃ and conduction type, China's industrial waste heat resource extensively is present in industrial every profession and trade production process, residual heat resources account for 17%～67% of its fuel consumption total amount, wherein recovery rate reaches 60%, the utilization rate of waste heat room for promotion is large, energy-saving potential is huge, middle-low temperature heat accounts for 40% ~ 50% left and right in total waste heat amount ratio, if can be taken full advantage of, to for society saves ample resources, can reduce CO2 emission and thermo-pollution simultaneously.
Existing technical patent mainly contains a kind of closed Brayton cycle waste heat generating system and utilizes its method of carrying out cogeneration, utilizes absorption type heat pump heating apparatus and a kind of high efficient steam power circulating apparatus etc. for generating of combustion and steam circulating thermoelectric plant smoke residual heat.Its deficiency is:
1, be mainly used in high-temperature geothermal and residual heat resources, in the situation that underground heat and residual heat resources temperature are lower, its unit efficiency is too low or can not realize;
2, can not realize simultaneously power output and heat supply, warm for middle low temperature underground heat and residual heat resources (70～120 ℃);
3, apparatus structure is complicated, and investment of equipment is higher.
[summary of the invention]
The purpose of this invention is to provide a kind of device that utilizes underground heat and residual heat resources to carry out power output and hot water supply.It adopts lower boiling binary mixture is cycle fluid, reduced the irreversible loss in the heat transfer process, generator and adsorber adopt many tube bundles vertical tube falling heat exchanger, compact structure, Safety performance are reliable, realize simultaneously power output and hot water supply, effectively improved the utilization ratio of low-grade energy.
technical solution of the present invention is: utilize underground heat and waste heat to be converted into power cycle and heat supply or warm device, comprise the thermal source entrance, the thermal source outlet, generator, adsorber, condenser, steam turbine, liquid container, solution pump, First Heat Exchanger, the second heat exchanger, reduction valve, domestic hot-water's case, cooling waterpump, cooling water tank, the cooling water tank water supplement port, domestic hot-water's case water outlet, modulating valve, the solution pump entrance is by the described liquid container of pipeline communication bottom, the solution pump outlet is by the first entrance of pipeline communication First Heat Exchanger, the first outlet of First Heat Exchanger is by the working medium entrance of pipeline communication generator, the working medium gas phase outlet of generator is through realizing after steam turbine that power output is by the gas phase entrance of pipeline communication condenser, the gaseous phase outlet of condenser is by the working medium gas phase entrance of pipeline communication adsorber, the working medium liquid-phase outlet of generator is by the second entrance of pipeline communication First Heat Exchanger, the second outlet of First Heat Exchanger is through passing through the working medium liquid phase entrance of pipeline communication adsorber after reduction valve, the sender property outlet of adsorber is communicated with liquid container, the entrance of cooling waterpump is by the bottom of pipeline communication cooling water tank, the cooling waterpump outlet is by the cold water inlet of pipeline communication adsorber, the cooling water outlet of adsorber is by the liquid phase entrance of pipeline communication condenser, the liquid-phase outlet of condenser is by the first entrance of pipeline communication the second heat exchanger, the first outlet of the second heat exchanger is by the top of pipeline communication domestic hot-water case, the thermal source entrance is by the thermal source import of pipeline communication generator, the first thermal source outlet of generator is by the second entrance of pipeline communication the second heat exchanger, the second outlet of the second heat exchanger exports by pipeline communication to thermal source.The working medium of the lower temperature in described liquid container enters in described First Heat Exchanger through the first import of described First Heat Exchanger, carries out heat exchange with the working medium that the second import from described First Heat Exchanger enters, and then enters in adsorber.
described liquid container, solution pump, First Heat Exchanger, generator, steam turbine, condenser and adsorber form duplex matter system, liquid working substance is derived from liquid container, delivered to generator after First Heat Exchanger by solution pump, gas after evaporation enters condenser through after steam turbine, condensed gas working medium enters adsorber, liquid working substance after evaporation enters adsorber after First Heat Exchanger, liquid working substance after evaporation is the gas working medium after absorption condensation in adsorber, liquid working substance after absorption flows into liquid container by pipeline and completes a circulation, it is cycle fluid that described working medium adopts lower boiling binary mixture.Working medium derives from liquid container, and the condenser of flowing through enters adsorber, then returns liquid container and complete a circulation.Reduce the irreversible loss in the heat transfer process, effectively utilized and improved the utilization ratio of low-grade energy.
Described duplex matter system is closed system.
Described generator and adsorber adopt respectively many tube bundles vertical tube falling heat exchanger.Improve heat exchange efficiency.
The thermal source and the second heat exchanger that flow out from the outlet of many tube bundles vertical tube falling generator thermal source carry out hot heat exchange, have improved domestic hot-water's temperature, have improved efficiency of utilization; For middle low temperature underground heat and residual heat resources, power output and hot-water combined supplying have been realized simultaneously; Increase condenser, improved the efficiency of utilization of turbine discharge.
Described cooling water tank, cooling water tank water supplement port, domestic hot-water's case water outlet, modulating valve form hot water supply system, and described hot water supply system is closed system.More be conducive to the recycling of high-temperature condensation water resource and sensible heat thereof, be conducive to the energy-conservation of system.
be filled with research working medium solution in generation-absorption cycle system, working medium solution is sent into the film applicator working medium entrance of many tube bundles vertical tube generator after solution pump and First Heat Exchanger, working medium forms steam after by the thermal source heating evaporation, steam is sent in the gas phase entrance of many tube bundles vertical tube adsorber through condenser by pipeline, and the working medium solution after evaporation is admitted to the film applicator liquid phase entrance of many tube bundles vertical tube adsorber after First Heat Exchanger, absorption is from the steam of condenser, condenser and many tube bundles vertical tube adsorber liberated heat are taken away by cooling water system, the hot water of condenser liquid-phase outlet with enter domestic hot-water's case from the thermal source of many tube bundles vertical tube generator hot water outlet after the second heat exchanger heat exchange, domestic hot-water's case is provided with water outlet, cooling water tank is provided with water supplement port, be provided with modulating valve between domestic hot-water's case and cooling water tank, when the temperature of domestic hot-water's case is hanged down, open modulating valve, the hot water of domestic hot-water's case flows into cooling water tank, and when the temperature of domestic hot-water's case was higher, hot water flowed out from domestic hot-water's case water outlet automatically.
Advantage of the present invention is: a kind of device that utilizes underground heat and residual heat resources to carry out power output and hot water supply is provided.It adopts lower boiling binary mixture is cycle fluid, has reduced the irreversible loss in the heat transfer process; Increase condenser, improved the efficiency of utilization of turbine discharge; Generator and adsorber adopt many tube bundles vertical tube falling heat exchanger, and compact structure, Safety performance are reliable, have realized simultaneously power output and hot water supply, have effectively improved the utilization ratio of low-grade energy.
[description of drawings]
Accompanying drawing 1 is converted into power cycle and heat supply or warm device schematic diagram for the underground heat that utilizes of the embodiment of the present invention.
Description of reference numerals: 1, generator; 2, steam turbine; 3, condenser; 4, adsorber; 5, liquid container; 6, solution pump; 7, First Heat Exchanger; 8, the second heat exchangers; 9, reduction valve; 10, domestic hot-water's case; 11, cooling waterpump; 12, the thermal source entrance; 13, the thermal source outlet; 14, cooling water tank; 15, the cooling water tank water supplement port; 16, domestic hot-water's case water outlet; 17, modulating valve, 18, the first thermal source outlets.
[embodiment]
consult Fig. 1, utilize underground heat and waste heat to be converted into power cycle and heat supply or warm device, comprise thermal source entrance 12, thermal source outlet 13, generator 1, adsorber 4, condenser 3, steam turbine 2, liquid container 5, solution pump 6, First Heat Exchanger 7, the second heat exchanger 8, reduction valve 9, domestic hot-water's case 10, cooling waterpump 11, cooling water tank 14, cooling water tank water supplement port 15, domestic hot-water's case water outlet 16, modulating valve 17, solution pump 6 entrances are by the described liquid container of pipeline communication 5 bottoms, the solution pump outlet is by the first entrance of pipeline communication First Heat Exchanger 7, the first outlet of First Heat Exchanger 7 is by the working medium entrance of pipeline communication generator 1, the working medium gas phase outlet of generator 1 is through realizing after steam turbine 2 that power output is by the gas phase entrance of pipeline communication condenser 3, the gaseous phase outlet of condenser 3 is by the working medium gas phase entrance of pipeline communication adsorber 4, the working medium liquid-phase outlet of generator 1 is by the second entrance of pipeline communication First Heat Exchanger 7, the second outlet of First Heat Exchanger 7 is through passing through the working medium liquid phase entrance of pipeline communication adsorber 4 after reduction valve 9, the sender property outlet of adsorber 4 is communicated with liquid container 5, the entrance of cooling waterpump 11 is by the bottom of pipeline communication cooling water tank 14, outlet is by the cold water inlet of pipeline communication adsorber 4, the cooling water outlet of adsorber 4 is by the liquid phase entrance of pipeline communication condenser 3, the liquid-phase outlet of condenser 3 is by the first entrance of pipeline communication the second heat exchanger 8, the first outlet of the second heat exchanger 8 is by the top of pipeline communication domestic hot-water case 10, thermal source entrance 12 is by the thermal source import of pipeline communication generator 1, the first thermal source outlet 18 of generator 1 is by the second entrance of pipeline communication the second heat exchanger 8, the second outlet of the second heat exchanger 8 exports 13 by pipeline communication to thermal source.
liquid container 5, solution pump 6, First Heat Exchanger 7, generator 1, steam turbine 2, condenser 3 and adsorber 4 form duplex matter system, liquid working substance is derived from liquid container 5, delivered to generator 1 after First Heat Exchanger 7 by solution pump 6, gas after evaporation enters condenser 3 through after steam turbine 2, condensed gas working medium enters adsorber 4, liquid working substance after evaporation enters adsorber 4 after First Heat Exchanger 7, liquid working substance after evaporation is the gas working medium after absorption condensation in adsorber 4, liquid working substance after absorption flows into liquid container 5 by pipeline and completes a circulation, it is cycle fluid that described working medium adopts lower boiling binary mixture.Duplex matter system is closed system.
The working medium of the lower temperature in liquid container 5 enters in described First Heat Exchanger 7 through the first import of described First Heat Exchanger 7, carries out heat exchange with the working medium that the second import from described First Heat Exchanger 7 enters, and then enters in adsorber 4.
In the present embodiment, generator 1 and adsorber 4 adopt respectively many tube bundles vertical tube falling heat exchanger.Improve heat exchange efficiency.
be filled with research working medium solution in generation-absorption cycle system, working medium solution is sent into the film applicator working medium entrance of many tube bundles vertical tube generator 1 after solution pump 6 and First Heat Exchanger 7, working medium forms steam after by the thermal source heating evaporation, steam is sent in the gas phase entrance of many tube bundles vertical tube adsorber 4 through condenser 3 by pipeline, and the working medium solution after evaporation is admitted to the film applicator liquid phase entrance of many tube bundles vertical tube adsorber 4 after First Heat Exchanger 7, absorption is from the steam of condenser 3, condenser 3 and many tube bundles vertical tube adsorber 4 liberated heats are taken away by cooling water system, the hot water of condenser 3 liquid-phase outlets with enter domestic hot-water's case 10 from the thermal source of many tube bundles vertical tube generator 1 hot water outlet after the second heat exchanger 7 heat exchange, domestic hot-water's case 10 is provided with water outlet, cooling water tank 14 is provided with water supplement port 15, be provided with modulating valve 17 between domestic hot-water's case 10 and cooling water tank 14, when the temperature of domestic hot-water's case 10 is hanged down, open modulating valve 17, the hot water of domestic hot-water's case 10 flows into cooling water tank 14, and when the temperature of domestic hot-water's case 10 was higher, hot water flowed out from the water outlet 16 of domestic hot-water's case 10 automatically.
In apparatus of the present invention, many tube bundles vertical tube falling generator 1 gas outlet is connected with steam turbine 2, and steam turbine 2 steam discharges are connected with many tube bundles vertical tube adsorber 4 with condenser 3, has realized simultaneously power output and two kinds of effects of Recovery of the hot water.
The heat of low temperature low-grade (underground heat, solar energy, industrial exhaust heat) resource during the present embodiment not only solves, moving alliance, but also can effectively improve the utilization ratio of high temperature heat source.Its major advantage is:
1, utilize lower boiling binary mixture to be cycle fluid, reduced the irreversible loss in the heat transfer process, effectively utilize and improved the utilization ratio of low-grade energy;
2, increased condenser, improved the efficiency of utilization of turbine discharge;
3, for middle low temperature underground heat and residual heat resources, realized simultaneously power output and hot-water combined supplying;
4, generator and adsorber adopt many tube bundles vertical tube falling heat exchanger, improve heat exchange efficiency;
5, water heating system adopts closed system more to be conducive to the recycling of high-temperature condensation water resource and sensible heat thereof, is conducive to the energy-conservation of system.
Above-listed detailed description is that this embodiment limits the scope of the claims of the present invention for the illustrating of one of the present invention possible embodiments, and the equivalence that all the present invention of disengaging do is implemented or change, all should be contained in the scope of the claims of this case.
Claims (5)
1. utilize underground heat and waste heat to be converted into power cycle and heat supply or warm device, it is characterized in that: comprise thermal source entrance (12), thermal source outlet (13), generator (1), adsorber (4), condenser (3), steam turbine (2), liquid container (5), solution pump (6), First Heat Exchanger (7), the second heat exchanger (8), reduction valve (9), domestic hot-water's case (10), cooling waterpump (11), cooling water tank (14), cooling water tank water supplement port (15), domestic hot-water's case water outlet (16), be connected to the modulating valve (17) between domestic hot-water's case (10) and cooling water tank (14), solution pump (6) entrance is by the described liquid container of pipeline communication (5) bottom, the outlet of solution pump (6) is by the first entrance of pipeline communication First Heat Exchanger (7), the first outlet of First Heat Exchanger (7) is by the working medium entrance of pipeline communication generator (1), the working medium gas phase outlet of generator (1) is through the gas phase entrance of steam turbine (2) by pipeline communication condenser (3), the gaseous phase outlet of condenser (3) is by the working medium gas phase entrance of pipeline communication adsorber (4), the working medium liquid-phase outlet of generator (1) is by the second entrance of pipeline communication First Heat Exchanger (7), the second outlet of First Heat Exchanger (7) is through the rear working medium liquid phase entrance by pipeline communication adsorber (4) of reduction valve (9), the sender property outlet of adsorber (4) is communicated with liquid container (5), the entrance of cooling waterpump (11) is by the bottom of pipeline communication cooling water tank (14), the outlet of cooling waterpump (11) is by the cold water inlet of pipeline communication adsorber (4), the cooling water outlet of adsorber (4) is by the liquid phase entrance of pipeline communication condenser (3), the liquid-phase outlet of condenser (3) is by the first entrance of pipeline communication the second heat exchanger (8), the first outlet of the second heat exchanger (8) is by the top of pipeline communication domestic hot-water case (10), thermal source entrance (12) is by the thermal source import of pipeline communication generator (1), the first thermal source outlet (18) of generator (1) is by the second entrance of pipeline communication the second heat exchanger (8), the second outlet of the second heat exchanger (8) exports (13) by pipeline communication to thermal source.
2. underground heat and the waste heat of utilizing according to claim 1 is converted into power cycle and heat supply or warm device, it is characterized in that: described liquid container (5), solution pump (6), First Heat Exchanger (7), generator (1), steam turbine (2), condenser (3) and adsorber (4) form duplex matter system, liquid working substance is derived from liquid container (5), delivered to generator (1) after First Heat Exchanger (7) by solution pump (6), enter condenser (3) after gas process steam turbine (2) after evaporation, condensed gas working medium enters adsorber (4), liquid working substance after evaporation enters adsorber (4) after First Heat Exchanger (7), liquid working substance after evaporation is the gas working medium after absorption condensation in adsorber (4), liquid working substance after absorption flows into liquid container (5) by pipeline and completes a circulation, it is cycle fluid that described working medium adopts lower boiling binary mixture.
3. underground heat and the waste heat of utilizing according to claim 1 is converted into power cycle and heat supply or warm device: it is characterized in that: described generator (1) and adsorber (4) adopt respectively many tube bundles vertical tube falling heat exchanger.
4. underground heat and the waste heat of utilizing according to claim 2 is converted into power cycle and heat supply or warm device, and it is characterized in that: described duplex matter system is closed system.
5. underground heat and the waste heat of utilizing according to claim 1 is converted into power cycle and heat supply or warm device, it is characterized in that: the working medium of the lower temperature in described liquid container (5) enters in described First Heat Exchanger (7) through the first import of described First Heat Exchanger (7), carry out heat exchange with the working medium that the second import from described First Heat Exchanger (7) enters, then enter in adsorber (4).
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| CN 201110217700 CN102305110B (en) | 2011-07-29 | 2011-07-29 | Device for transforming terrestrial heat and waste heat into power cycle and supplying heat |
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| CN102305110B true CN102305110B (en) | 2013-06-19 |
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| CN102797522B (en) * | 2012-08-28 | 2015-10-28 | 西安交通大学 | A kind of Low and mid temperature heat recovery system realizing cold electricity/cogeneration of heat and power |
| CN104314631A (en) * | 2014-08-15 | 2015-01-28 | 国核柏斯顿新能源科技(北京)有限公司 | System for generating power in non heating season by low-temperature nuclear heat reactor and working method of system |
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| EP0099501A2 (en) * | 1982-07-15 | 1984-02-01 | BROWN, BOVERI & CIE Aktiengesellschaft | Method of changing the electric energy release of a heating power plant without influencing the heat release to the heat consumers |
| US6347520B1 (en) * | 2001-02-06 | 2002-02-19 | General Electric Company | Method for Kalina combined cycle power plant with district heating capability |
| JP2006169970A (en) * | 2004-12-13 | 2006-06-29 | Sanden Corp | Rankine system |
| WO2010080467A2 (en) * | 2008-12-19 | 2010-07-15 | E. I. Du Pont De Nemours And Company | Absorption power cycle system |
| CN101949612A (en) * | 2010-08-27 | 2011-01-19 | 清华大学 | Cooling mode driven by utilizing urban heat supply network |
| CN101967999A (en) * | 2010-09-25 | 2011-02-09 | 北京联合优发能源技术有限公司 | Combined heat and power generation energy saving device using afterheat to supply heat and energy saving method |
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2011
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0099501A2 (en) * | 1982-07-15 | 1984-02-01 | BROWN, BOVERI & CIE Aktiengesellschaft | Method of changing the electric energy release of a heating power plant without influencing the heat release to the heat consumers |
| US6347520B1 (en) * | 2001-02-06 | 2002-02-19 | General Electric Company | Method for Kalina combined cycle power plant with district heating capability |
| JP2006169970A (en) * | 2004-12-13 | 2006-06-29 | Sanden Corp | Rankine system |
| WO2010080467A2 (en) * | 2008-12-19 | 2010-07-15 | E. I. Du Pont De Nemours And Company | Absorption power cycle system |
| CN101949612A (en) * | 2010-08-27 | 2011-01-19 | 清华大学 | Cooling mode driven by utilizing urban heat supply network |
| CN101967999A (en) * | 2010-09-25 | 2011-02-09 | 北京联合优发能源技术有限公司 | Combined heat and power generation energy saving device using afterheat to supply heat and energy saving method |
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