CN213777866U - Absorption type ground source heat pump and cogeneration unit coupling energy supply system - Google Patents

Absorption type ground source heat pump and cogeneration unit coupling energy supply system Download PDF

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Publication number
CN213777866U
CN213777866U CN202022790183.5U CN202022790183U CN213777866U CN 213777866 U CN213777866 U CN 213777866U CN 202022790183 U CN202022790183 U CN 202022790183U CN 213777866 U CN213777866 U CN 213777866U
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pipeline
heat
heat exchange
outlet
regulating valve
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刘媛媛
梁新磊
石天庆
李娜
侯晓宁
崔强
贾天翔
王剑利
刘亚伟
张斌
尹荣荣
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Huadian Zhengzhou Machinery Design and Research Institute Co Ltd
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Huadian Zhengzhou Machinery Design and Research Institute Co Ltd
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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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/40Geothermal heat-pumps
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/14Combined heat and power generation [CHP]

Abstract

The utility model discloses an absorption formula soil source heat pump and combined heat and power units coupling energy supply system, the generator of connecting including heating network pipeline, steam turbine and steam turbine, still be connected with soil source heat pump system, condenser and cooling tower on the steam turbine, the gas vent of steam turbine pipe connection respectively has condenser and soil heat pump system, be provided with water cooling pipeline between the condenser cooling tower, the water cooling pipeline is provided with the water-cooling branch road on the road, water-cooling branch road and soil heat pump system pipe connection, soil heat pump system and heating network pipeline pipe connection have the cooling effect that improves recirculated cooling water, have improved the vacuum and the steam turbine output of condenser, increase the beneficial effect of the generated energy of combined heat and power units.

Description

Absorption type ground source heat pump and cogeneration unit coupling energy supply system
Technical Field
The utility model belongs to the technical field of the energy, concretely relates to absorption formula soil source heat pump and combined heat and power generation unit coupling energy supply system.
Background
Surface soils and bodies of water are not only a massive solar collector, collecting approximately 47% of the solar radiation energy, but are also a massive dynamic energy balance system, where the soil and bodies of the surface naturally maintain a relatively balanced energy acceptance and divergence, which makes it possible to utilize nearly infinite solar or geothermal energy stored therein. Therefore, the geothermal energy is a clean, low-carbon, widely distributed, safe and high-quality renewable energy source which is stored in the earth. The soil source heat pump fully utilizes shallow geothermal energy, realizes the effects of heating in winter and refrigerating in summer by heat extraction in winter and heat extraction in summer, and is an economic, efficient and energy-saving renewable energy utilization device.
The cooling effect of the cooling tower in winter and summer of the power plant is obviously different. Along with summer ambient temperature risees, the cooling effect of power plant's cooling tower reduces, seriously reduces the vacuum of condenser, and then reduces the generated energy, and need rely on the steam turbine to pass through the heat supply pipe network for user's heat supply winter, has the problem that heating power can be not enough this moment.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an absorption formula soil source heat pump and combined heat and power generation unit coupling energy supply system.
The utility model discloses a concrete scheme as follows:
the utility model provides an absorption formula soil source heat pump and combined heat and power units coupling energy supply system, includes the generator that heating network pipeline, steam turbine and steam turbine are connected, its characterized in that: the soil source heat pump system is characterized in that a soil source heat pump system, a condenser and a cooling tower are further connected onto the steam turbine, the exhaust port of the steam turbine is respectively connected with the condenser and the soil heat pump system through pipelines, a water cooling pipeline is arranged between the condenser and the cooling tower, a water cooling branch is arranged on the water cooling pipeline and is connected with the soil heat pump system through a pipeline, and the soil heat pump system is connected with a heat supply network pipeline through a pipeline.
And the water-cooling pipeline is provided with a water-cooling regulating valve, and the condenser is connected with the cooling tower pipeline through the water-cooling regulating valve.
The soil source heat pump system comprises a generator, a condenser, an evaporator, an absorber, a solution heat exchanger and a buried pipe, wherein the generator, the condenser, the evaporator, the absorber and the solution heat exchanger are sequentially connected through pipelines from head to tail, and the evaporator and the absorber are connected with the buried pipe through pipelines.
The steam generator is characterized in that a steam inlet, a steam outlet, a first solution inlet, a first liquid return port and a generator steam outlet are formed in the generator, the steam inlet and the steam outlet are connected in a pipeline in the generator, the first solution inlet is respectively connected with the first liquid return port and the generator steam outlet in the generator in a pipeline mode, an exhaust port of a steam turbine is connected with the steam inlet in a pipeline mode, and the generator steam outlet is connected with a condenser in a pipeline mode.
The condenser is provided with a condensation air inlet, a heat exchange air outlet and a condensation liquid outlet, wherein the generator steam outlet is connected with the condensation air inlet through a pipeline, the condensation air inlet is connected with the condensation liquid outlet through a pipeline in the condenser, the condensation liquid outlet is connected with the evaporator through a pipeline, the heat exchange air inlet is connected with the absorber through a pipeline, the heat exchange air inlet is connected with the heat exchange air outlet through a pipeline in the condenser, the buried pipe is provided with a first geothermal regulating valve, the heat supply pipe is provided with a first heat supply regulating valve on the road, the heat exchange air outlet is connected with the buried pipe through a first geothermal regulating valve, and the heat exchange air outlet is connected with the heat supply pipe through a first heat supply regulating valve and a pipeline.
The evaporator comprises an evaporation inlet, an evaporation gas outlet, a first heat exchange port and a second heat exchange port, wherein the first heat exchange port is connected with the second heat exchange port through a pipeline in the evaporator, a second water-cooling regulating valve is arranged on the water-cooling branch pipeline, the first heat exchange port and the second heat exchange port are connected with the water-cooling branch pipeline through the second water-cooling regulating valve, a second geothermal regulating valve is arranged on the buried pipeline, the first heat exchange port and the second heat exchange port are connected with the buried pipeline through the second geothermal regulating valve, a condensation liquid outlet is connected with the evaporation inlet through a pipeline, the evaporation inlet is connected with the evaporation gas outlet through a pipeline in the evaporator, and the evaporation gas outlet is connected with the absorber through a pipeline.
The absorber comprises an absorber air inlet, an air-liquid mixing outlet, a second liquid return port, an absorption heat exchange air inlet end and an absorption heat exchange air outlet end, a second heat supply regulating valve is further arranged on the heat supply network pipeline, a third geothermal regulating valve is further arranged on the buried pipe, the absorption heat exchange air inlet end is connected with the heat supply network pipeline through the second heat supply regulating valve, the absorption heat exchange air inlet end is connected with the buried pipe pipeline through the third geothermal regulating valve, the absorption heat exchange air inlet end is connected with the absorption heat exchange air outlet end pipeline in the absorber, the absorption heat exchange air outlet end is connected with the heat exchange air inlet pipeline, the evaporation air outlet is connected with the absorber air inlet pipeline, and the air-liquid mixing outlet and the second liquid return port are both connected with the solution heat exchanger pipeline.
The solution heat exchanger is provided with a second solution inlet, a solution discharge port, a third liquid return port and a fourth liquid return port, wherein the second solution inlet is provided with a solution circulating pump, the gas-liquid mixing discharge port is connected with a second solution inlet pipeline through the solution circulating pump, the solution discharge port is connected with a first solution inlet pipeline, the third liquid return port is provided with a solution regulating valve, the second liquid return port is connected with the third liquid return port through a solution regulating valve pipeline, and the fourth liquid return port is connected with the first liquid return port pipeline.
The utility model discloses an absorption formula soil source heat pump and combined heat and power generation unit coupling energy supply system adopts absorption formula soil source heat pump system and combined heat and power generation unit to carry out the coupling, has following beneficial effect:
(1) in summer, the temperature of the circulating cooling water of the condenser is reduced through the absorption type soil source heat pump unit, the cooling effect of the circulating cooling water is improved, the vacuum degree of the condenser and the output of a steam turbine are improved, and the generating capacity of the cogeneration unit is increased;
(2) the absorption type soil source heat pump unit is used for heating the heat supply network water in winter, so that the heat supply amount of the cogeneration unit is increased
(3) Compared with a voltage compression heat pump, the absorption type soil source heat pump unit has the advantages of lower steam extraction grade, less exergy loss and higher comprehensive energy utilization rate.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the implementations of the present invention, and not all implementations, and all other embodiments obtained by those skilled in the art without any inventive work are included in the scope of the present invention.
As shown in fig. 1, an absorption type soil source heat pump and cogeneration unit coupling energy supply system comprises a heat supply network pipeline 45, a steam turbine 1 and a generator 2 connected with the steam turbine 1, the steam turbine 1 is further connected with a soil source heat pump system, a condenser 4 and a cooling tower 3, an exhaust port of the steam turbine 1 is respectively connected with the condenser 4 and the soil heat pump system through pipelines, a water cooling pipeline 6 is arranged between the cooling towers 3 of the condenser 4, a water cooling branch 38 is arranged on the water cooling pipeline 6, the water cooling branch 38 is connected with the soil heat pump system through a pipeline, and the soil heat pump system is connected with the heat supply network pipeline 45 through a pipeline.
In the cogeneration, a heat engine or a power station is used for simultaneously generating electric power and useful heat, steam exhausted by the steam turbine 1 can drive the power generator 2 to do work, so that electric quantity is generated, besides the accident of supplying electric energy, the steam turbine which does the work, namely, the steam extraction or the steam exhaust of the power generation turbine can be used for meeting the heat required by production and life, in the embodiment, the condensed liquid exhausted by the condenser can provide heat for users through a heat supply network pipeline 45, and the pipeline connection between the condenser and the heat supply network pipeline 45 is omitted in fig. 1.
In this embodiment, the soil heat pump system is connected with the exhaust port pipeline of the steam turbine 1, the steam turbine 1 can drive the soil heat pump system to work, the soil heat pump system can exchange heat with the cooling water in the cooling tower 3 through the water-cooling branch 38 in summer, namely, the soil heat pump system absorbs the heat of the cooling water through the water-cooling branch 38, so that the temperature of the cooling water further reduces and then enters the cooling tower, the temperature of the cooling water in the condenser 4 and the water-cooling tower 3 is reduced through the soil heat pump system in summer, and the cooling water circulation cooling effect is improved. The condenser 4 is a heat exchanger for condensing the exhaust steam of the steam turbine into water, and as the temperature of the cooling water is further reduced, the circulating water can absorb more heat after entering the condenser 4, so that more gas is condensed into water in the condenser 4, the vacuum degree of the condenser and the output of the steam turbine are improved, and the power generation capacity of the cogeneration unit is increased. In addition, the soil heat pump system also can carry out the heat exchange with heat supply network pipeline 45, and the heat supply return water of heat supply network pipeline 45 flows into the soil heat pump system through the pipeline in, the soil heat pump system can absorb the heat of ground heat source department and carry out the heat exchange with heat supply return water pipeline, has improved the temperature in the heat supply return water pipeline in the heat supply network pipeline 45, has increased the heat supply of cogeneration unit.
The water cooling pipeline 6 is provided with a water cooling regulating valve 5, the condenser 4 is connected with the cooling tower 3 through the water cooling regulating valve 5, and in the embodiment, the water cooling regulating valve 5 is preferably a butterfly valve.
The soil source heat pump system comprises a generator 15, a condenser 9, an evaporator 33, an absorber 27, a solution heat exchanger 20 and a buried pipe 41, wherein the generator 15, the condenser 9, the evaporator 33, the absorber 27 and the solution heat exchanger 20 are sequentially connected in an end-to-end pipeline manner, and the evaporator 33 and the absorber 27 are both connected with the buried pipe 41 in a pipeline manner.
The soil source heat pump system comprises two working modes, namely a heating mode and a cooling mode. In the cooling mode, the gas exhausted from the generator 15 enters the condenser 9, the condenser 9 condenses the exhausted gas into liquid, the condensed liquid is conveyed to the evaporator 33 through a pipeline, the condensed liquid is evaporated into gas in the evaporator 33, and since the conversion from liquid to gas is a heat absorption process, the temperature of the evaporator 33 is reduced in the process of evaporating the condensed liquid into gas by the evaporator 33, and at the moment, the evaporator 33 can exchange heat with the cooling water on the water cooling branch 38, so that the temperature of the circulating cooling water is reduced, the vacuum degree of the condenser 4 and the output of the steam turbine are improved in summer, and the power generation amount of the cogeneration unit is increased. The gas evaporated in the evaporator 33 is input into the absorber 27 through a pipeline, an absorbent solution which can easily absorb the gas is stored in the absorber 27, the evaporated gas is absorbed by the absorbent solution in the absorber 27 to become a gas-liquid mixture, the gas-liquid mixture enters the solution heat exchanger 20 through a pipeline, the solution heat exchanger 20 can heat the gas-liquid mixture, the heated gas-liquid mixture enters the generator 15, the temperature is further raised in the generator 15, so that the gas in the gas-liquid mixture is evaporated and is conveyed to the condenser 9 again through a pipeline for circulation, and the evaporated high-temperature liquid flows back to the solution heat exchanger 20 to provide heat for the next circulation in the solution heat exchanger 20.
The absorber 27 in the soil heat pump system can also absorb the heat at the soil ground source through the pipeline, and the absorbed heat at the soil ground source exchanges heat with the heat supply network pipeline in the absorber 27, so that the water temperature in the heat supply network pipeline is increased, and the heat supply amount of the cogeneration unit is increased during heat supply in winter.
The generator 15 is provided with a steam inlet 13, a steam outlet 14, a first solution inlet 16, a first liquid return port 18 and a generator steam outlet 17, wherein the steam inlet 13 and the steam outlet 14 are in pipeline connection in the generator 15, the first solution inlet 16 is in pipeline connection with the first liquid return port 18 and the generator steam outlet 17 respectively in the generator 15, an exhaust port of a steam turbine is in pipeline connection with the steam inlet 13, and the generator steam outlet 17 is in pipeline connection with the condenser 9.
The steam inlet 13 of the generator 15 can obtain high-temperature gas exhausted by the steam turbine, the high-temperature gas of the steam turbine exchanges heat in the generator, so that solution containing gas in the generator 15 is heated, the gas in the solution is evaporated and is conveyed to the gas inlet 10 of the condenser through a pipeline to condense the gas, the steam outlet 14 can exhaust the steam after heat exchange, and the heat exchange cycle is ensured to be normal, the first solution inlet 16 is used for sucking the solution containing gas from the solution heat exchanger 20, and the first liquid return port 18 is used for returning the high-temperature solution of the evaporated gas to the solution heat exchanger 20.
The condenser 9 is provided with a condensation air inlet 10, a heat exchange air inlet 11, a heat exchange air outlet 8 and a condensation liquid outlet 12, wherein the generator steam outlet 17 is connected with the condensation air inlet 10 through a pipeline, the condensation air inlet 10 is connected with the condensation liquid outlet 12 through a pipeline in the condenser 9, the condensation liquid outlet 12 is connected with the evaporator 33 through a pipeline, the heat exchange air inlet 11 is connected with the absorber 27 through a pipeline, the heat exchange air inlet 11 is connected with the heat exchange air outlet 8 through a pipeline in the condenser 9, the buried pipe 41 is provided with a first geothermal regulating valve 43, the heat supply network pipeline 45 is provided with a first heat supply regulating valve 44, the heat exchange air outlet 8 is connected with the buried pipe 41 through a first geothermal regulating valve 43, and the heat exchange air outlet 8 is connected with the heat supply network pipeline 45 through a first heat supply regulating valve 44.
Condensation air inlet 10 is used for receiving the gas that generator 15 produced to condense gas in condenser 9, condensation liquid outlet 12 is the liquid discharge after condenser 9 condenses gas for liquid, because from gas condensation to liquid, gas-liquid conversion is a exothermic process, condenser 9 can emit a large amount of heat, and the heat of emitting can be discharged to buried pipe 41 in through the heat transfer gas outlet, also can carry out the heat exchange with the heat supply network pipeline, what input among the heat transfer air inlet 11 is the heat supply network return water, through carrying out the heat transfer in condenser 9, the heat supply network after the heat transfer is retrieved and is flowed into to the heat supply network through heat transfer gas outlet 8.
The evaporator 33 comprises an evaporation liquid inlet 36, an evaporation gas outlet 32, a first heat exchange port 34 and a second heat exchange port 35, wherein the first heat exchange port 34 is in pipeline connection with the second heat exchange port 35 in the evaporator 33, the water-cooling branch 38 is provided with a second water-cooling regulating valve 7, the first heat exchange port 34 and the second heat exchange port 35 are in pipeline connection with the water-cooling branch 38 through the second water-cooling regulating valve 7, the buried pipe 41 is provided with a second geothermal regulating valve 39, the first heat exchange port 34 and the second heat exchange port 35 are in pipeline connection with the buried pipe 41 through the second geothermal regulating valve 39, the condensation liquid outlet 12 is in pipeline connection with the evaporation liquid inlet 36, the evaporation liquid inlet 36 is in pipeline connection with the evaporation gas outlet 32 in the evaporator 33, and the evaporation gas outlet 32 is in pipeline connection with the absorber 27.
The evaporation liquid inlet 36 is used for receiving liquid condensed by the condenser 9, an expansion valve 37 is further arranged at the evaporation liquid inlet 36 end and used for enabling high-temperature high-pressure liquid to be changed into low-temperature low-pressure wet steam through throttling so as to prepare for liquid evaporation, the evaporation gas outlet 32 is used for conveying evaporated gas into the absorber 27, and the first heat exchange port 34 and the second heat exchange port 35 can exchange heat with the cold water branch pipe in summer so as to reduce water temperature.
The absorber 27 comprises an absorber gas inlet 30, a gas-liquid mixing discharge port 26, a second liquid return port 29, an absorption heat exchange gas inlet end 28 and an absorption heat exchange gas outlet end 31, a second heat supply regulating valve 42 is also arranged on the heat supply network pipeline 45, a third geothermal regulating valve 40 is also arranged on the buried pipe 41, the absorption heat exchange air inlet end 28 is connected with a heat supply network pipeline 45 through a second heat supply regulating valve 42, the absorption heat exchange air inlet end 28 is connected with a buried pipe 41 through a third geothermal regulating valve 40, the absorption heat exchange gas inlet end 28 is connected with the absorption heat exchange gas outlet end 31 in the absorber 27 through a pipeline, the absorption heat exchange air outlet end 31 is connected with the heat exchange air inlet 11 through a pipeline, the evaporation air outlet 32 is connected with the absorber air inlet 30 through a pipeline, the gas-liquid mixing discharge port 26 and the second liquid return port 29 are both connected with the solution heat exchanger 20 through pipelines.
The solution heat exchanger 20 is provided with a second solution inlet 22, a solution outlet 21, a third liquid return port 23 and a fourth liquid return port 19, wherein the second solution inlet 22 is provided with a solution circulating pump 24, the gas-liquid mixing outlet 26 is connected with the second solution inlet 22 through the solution circulating pump 24, the solution outlet 21 is connected with the first solution inlet 16 through a pipeline, the third liquid return port 23 is provided with a solution regulating valve 25, the solution regulating valve 25 is an expansion valve, the second liquid return port 29 is connected with the third liquid return port 23 through the solution regulating valve 25 through a pipeline, and the fourth liquid return port 19 is connected with the first liquid return port 18 through a pipeline.
The operation of the system is as follows,
in summer, the second water-cooling regulating valve 7, the first geothermal regulating valve 43 and the third geothermal regulating valve 40 are opened, the first heat supply regulating valve 44, the second heat supply regulating valve 42 and the second geothermal regulating valve 39 are closed, at this time, gas evaporated from the generator 15 enters the condenser 9 for condensation, condensed liquid enters the evaporator 33 through the expansion valve 37, heat generated in the condensation process is conveyed to the buried pipe 41 through the first geothermal regulating valve 43, liquid in the evaporator 33 is evaporated into gas, heat is absorbed in the evaporation process, the water-cooling branch 38 exchanges heat with the evaporator 33, the temperature of cooling water is reduced, gas discharged from the evaporator 33 is absorbed by solution in the absorber 27 and enters the generator 15 again through the solution heat exchanger 20 for evaporation, and a refrigeration cycle is formed.
In winter, the second water-cooling regulating valve 7, the first geothermal regulating valve 43 and the third geothermal regulating valve 40 are closed, the first heat supply regulating valve 44, the second heat supply regulating valve 42 and the second geothermal regulating valve 39 are opened, at the moment, gas evaporated from the generator 15 enters the condenser 9 for condensation, condensed liquid enters the evaporator 33 through the expansion valve 37, heat generated in the condensation process is transmitted into the heat supply network pipeline 45 through the first heat supply regulating valve 44, the liquid in the evaporator 33 is evaporated into gas, the evaporation process can absorb heat from the buried pipe through the second geothermal regulating valve 39, the gas discharged from the evaporator 33 is absorbed by solution in the absorber 27, the backwater in the heat supply network pipeline 45 enters the absorber 27 through the second heat supply regulating valve 42 and enters the condenser through the heat exchange air inlet 11 for heat exchange, and the backwater in the heat supply network pipeline is heated, the heated return water flows into a heat supply network pipeline 45 through the heat exchange air outlet 8 and the first heat supply regulating valve 44, so that the heating of a heat supply network is realized, and the heat supply amount is increased.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims (8)

1. The utility model provides an absorption formula soil source heat pump and combined heat and power units coupling energy supply system, includes generator (2) that heat supply network pipeline (45), steam turbine (1) and steam turbine (1) are connected, its characterized in that: still be connected with soil source heat pump system, condenser (4) and cooling tower (3) on steam turbine (1), the gas vent of steam turbine (1) pipe connection respectively has condenser (4) and soil heat pump system, be provided with water-cooling pipeline (6) between condenser (4) cooling tower (3), be provided with water-cooling branch road (38) on water-cooling pipeline (6), water-cooling branch road (38) and soil heat pump system pipe connection, soil heat pump system and heat supply network pipeline (45) pipe connection.
2. The absorption type ground source heat pump and cogeneration unit coupled energy supply system according to claim 1, wherein: the water-cooling system is characterized in that a water-cooling regulating valve (5) is arranged on the water-cooling pipeline (6), and the condenser (4) is connected with the cooling tower (3) through the water-cooling regulating valve (5).
3. The absorption type ground source heat pump and cogeneration unit coupled energy supply system according to claim 1, wherein: the soil source heat pump system comprises a generator (15), a condenser (9), an evaporator (33), an absorber (27), a solution heat exchanger (20) and a buried pipe (41), wherein the generator (15), the condenser (9), the evaporator (33), the absorber (27) and the solution heat exchanger (20) are sequentially connected through end-to-end pipelines, and the evaporator (33) and the absorber (27) are connected with the buried pipe (41) through pipelines.
4. The absorption type ground source heat pump and cogeneration unit coupled energy supply system according to claim 3, wherein: the steam generator is characterized in that a steam inlet (13), a steam outlet (14), a first solution inlet (16), a first liquid return port (18) and a generator steam outlet (17) are arranged on the generator (15), wherein the steam inlet (13) and the steam outlet (14) are in pipeline connection in the generator (15), the first solution inlet (16) is in pipeline connection with the first liquid return port (18) and the generator steam outlet (17) in the generator (15), a steam exhaust port of a steam turbine is in pipeline connection with the steam inlet (13), and the generator steam outlet (17) is in pipeline connection with the condenser (9).
5. The absorption type ground source heat pump and cogeneration unit coupled energy supply system according to claim 4, wherein: the condenser (9) is provided with a condensation air inlet (10), a heat exchange air inlet (11), a heat exchange air outlet (8) and a condensation liquid outlet (12), wherein the generator steam outlet (17) is in pipeline connection with the condensation air inlet (10), the condensation air inlet (10) is in pipeline connection with the condensation liquid outlet (12) in the condenser (9), the condensation liquid outlet (12) is in pipeline connection with the evaporator (33), the heat exchange air inlet (11) is in pipeline connection with the absorber (27), the heat exchange air inlet (11) is in pipeline connection with the heat exchange air outlet (8) in the condenser (9), the buried pipe (41) is provided with a first geothermal regulating valve (43), the heat supply network pipeline (45) is provided with a first heat supply regulating valve (44), and the heat exchange air outlet (8) is in pipeline connection with the buried pipe (41) through the first geothermal regulating valve (43), and the heat exchange air outlet (8) is connected with a heat supply network pipeline (45) through a first heat supply regulating valve (44).
6. The absorption type ground source heat pump and cogeneration unit coupled energy supply system according to claim 5, wherein: the evaporator (33) comprises an evaporation liquid inlet (36), an evaporation gas outlet (32), a first heat exchange port (34) and a second heat exchange port (35), wherein the first heat exchange port (34) is in pipeline connection with the second heat exchange port (35) in the evaporator (33), the water-cooling branch (38) is provided with a second water-cooling regulating valve (7), the first heat exchange port (34) and the second heat exchange port (35) are in pipeline connection with the water-cooling branch (38) through the second water-cooling regulating valve (7), the buried pipe (41) is provided with a second geothermal regulating valve (39) in pipeline connection, the first heat exchange port (34) and the second heat exchange port (35) are in pipeline connection with the buried pipe (41) through the second geothermal regulating valve (39), the condensation liquid outlet (12) is in pipeline connection with the evaporation liquid inlet (36), and the evaporation liquid inlet (36) is in pipeline connection with the evaporation gas outlet (32) in the evaporator (33), the evaporation air outlet (32) is connected with the absorber (27) through a pipeline.
7. The absorption type ground source heat pump and cogeneration unit coupled energy supply system according to claim 6, wherein: the absorber (27) comprises an absorber air inlet (30), a gas-liquid mixing outlet (26), a second liquid return port (29), an absorption heat exchange air inlet end (28) and an absorption heat exchange air outlet end (31), the heat supply network pipeline (45) is also provided with a second heat supply regulating valve (42), the buried pipe (41) is also provided with a third geothermal regulating valve (40), the absorption heat exchange air inlet end (28) is in pipeline connection with the heat supply network pipeline (45) through the second heat supply regulating valve (42), the absorption heat exchange air inlet end (28) is in pipeline connection with the buried pipe (41) through the third geothermal regulating valve (40), the absorption heat exchange air inlet end (28) is in pipeline connection with the absorption heat exchange air outlet end (31) in the absorber (27), the absorption heat exchange air outlet end (31) is in pipeline connection with the heat exchange air inlet (11), and the evaporation air outlet (32) is in pipeline connection with the absorber air inlet (30), the gas-liquid mixing discharge port (26) and the second liquid return port (29) are connected with the solution heat exchanger (20) through pipelines.
8. The absorption type ground source heat pump and cogeneration unit coupled energy supply system according to claim 7, wherein: the solution heat exchanger (20) is provided with a second solution inlet (22), a solution outlet (21), a third liquid return port (23) and a fourth liquid return port (19), wherein the second solution inlet (22) is provided with a solution circulating pump (24), the gas-liquid mixing outlet (26) is in pipeline connection with the second solution inlet (22) through the solution circulating pump (24), the solution outlet (21) is in pipeline connection with the first solution inlet (16), the third liquid return port (23) is provided with a solution regulating valve (25), the second liquid return port (29) is in pipeline connection with the third liquid return port (23) through the solution regulating valve (25), and the fourth liquid return port (19) is in pipeline connection with the first liquid return port (18).
CN202022790183.5U 2020-11-26 2020-11-26 Absorption type ground source heat pump and cogeneration unit coupling energy supply system Active CN213777866U (en)

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