CN209877408U - Energy tower heat pump system with energy storage and solution regeneration functions - Google Patents

Energy tower heat pump system with energy storage and solution regeneration functions Download PDF

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Publication number
CN209877408U
CN209877408U CN201920674073.7U CN201920674073U CN209877408U CN 209877408 U CN209877408 U CN 209877408U CN 201920674073 U CN201920674073 U CN 201920674073U CN 209877408 U CN209877408 U CN 209877408U
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electromagnetic valve
energy
electric pump
heat
energy tower
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曹先齐
文先太
杲东彦
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Nanjing Institute of Technology
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Nanjing Institute of Technology
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Abstract

The utility model discloses a have energy tower heat pump system of energy storage and solution regeneration function concurrently, including heat pump system, energy tower system, coolant liquid purification system, energy storage system and heating system. The heat pump system comprises a compressor, a condenser, a throttle valve and an evaporator; the energy tower system comprises an evaporator, an energy tower and an electromagnetic pump; the cooling liquid purification system comprises an evaporator, a vacuum ice maker, a gravity desalination device, a concentrated solution storage device and an electric pump; the energy storage system comprises a gravity desalting device, a reservoir, an ice storage tank and an electric pump; the heating system comprises a condenser, a heat consumer and an electric pump. When the solution concentration is normal, operating an energy tower mode; and when the concentration of the solution is lower, starting a solution purification mode. The utility model discloses an energy tower solution regeneration problem is solved to the vacuum freezing method high efficiency, carries out normal heat supply and energy storage in the time of solution purification, improves the comprehensive efficiency of system all the year, guarantees the safety and stability operation of unit.

Description

Energy tower heat pump system with energy storage and solution regeneration functions
Technical Field
The utility model belongs to the technical field of refrigeration air conditioning system, concretely relates to have energy storage and solution regeneration function's energy tower heat pump system concurrently.
Background
With the development of economy and the improvement of living standard of people, the requirement on the comfort of living environment is higher and higher, so that the energy consumption of the building air conditioning system is higher and higher. Therefore, the development of energy conservation of building air conditioning systems is not slow, and an energy tower heat pump system with an energy storage function is an energy-saving technology developed under the background.
Compared with a scheme of adding a cold and heat source of a boiler to a water chilling unit, the energy tower heat pump has no problems of idle water chilling unit and environmental pollution; compared with an air source heat pump, the energy tower heat pump has no frosting problem. However, the energy tower heat pump system is generally designed according to the maximum load of the building under the worst working conditions, so that the installed capacity of the heat pump system is too large, and the initial investment is increased. And when the outdoor temperature is lower in winter, the building heat supply load demand is obviously increased, but the heat supply capacity and the efficiency of the energy tower heat pump unit are reduced along with the reduction of the outdoor temperature, so that the efficiency of the energy tower heat pump system is reduced. Meanwhile, the energy tower heat pump system absorbs water vapor in air when running in winter, so that the concentration of the solution is reduced, the freezing point temperature of the solution is increased, and the danger of blocking equipment pipelines due to freezing is caused. Therefore, the energy tower heat pump system also needs to solve the problem of solution purification.
Therefore, how to reduce the capacity of the heat pump machine assembling machine under the condition of meeting the worst working condition, efficiently solve the problem of solution regeneration of the energy tower heat pump system, and improve the comprehensive energy efficiency of the energy tower heat pump system is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, provide an energy tower heat pump system who has energy storage and solution regeneration function concurrently.
In order to realize the technical purpose, the utility model discloses the technical scheme who takes does:
an energy tower heat pump system with both energy storage and solution regeneration functions, wherein: the system comprises an energy tower system, a heat pump system, a heat supply system, a cooling liquid purification system and an energy storage system;
the energy tower system comprises an evaporator heat-release chamber, a second electric pump and an energy tower, which are sequentially connected into a loop through a transport pipeline, and the second electric pump enables cooling liquid in the pipeline to circularly flow;
the heat pump system comprises an evaporator evaporation chamber, a compressor, a condenser cooling chamber and a throttle valve, which are sequentially connected into a loop through a transport pipeline, wherein the compressor enables refrigerant in the pipeline to circularly flow, and the throttle valve is used for regulating the pressure of the refrigerant;
the evaporator heat release chamber and the evaporator evaporation chamber can exchange heat, so that the heat of the cooling liquid is transferred to the refrigerant;
the heat supply system comprises a condenser heating chamber, a first electric pump and a heat consumer, which are sequentially connected into a loop through a transport pipeline, and the first electric pump enables water in the pipeline to circularly flow;
the condenser cooling chamber and the condenser heating chamber can exchange heat to transfer the heat of the refrigerant to water;
the method is characterized in that: the cooling liquid purification system comprises a vacuum ice maker, a gravity desalination device, a concentrated solution storage and an electric pump which are sequentially connected through a transport pipeline, an inlet of the vacuum ice maker is connected with an outlet of a heat release chamber of the evaporator through a pipeline, an outlet of the second electric pump is connected with an inlet of an energy tower, and the second electric pump is used for conveying cooling liquid from the concentrated solution storage to the energy tower;
the energy storage system comprises a reservoir, an ice storage pool, a third electric pump and a fourth electric pump, wherein the reservoir, the third electric pump, the gravity desalting device, the fourth electric pump and the ice storage pool are sequentially connected into a loop through a conveying pipeline, the third electric pump conveys water in the reservoir into the gravity desalting device, and the fourth electric pump conveys an ice-water mixture in the gravity desalting device into the ice storage pool;
at least one electromagnetic valve is connected in each pipeline and used for controlling the on-off of the corresponding pipeline.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the energy tower heat pump system with the energy storage and solution regeneration functions further comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve, a sixth electromagnetic valve, a seventh electromagnetic valve, an eighth electromagnetic valve, a ninth electromagnetic valve, a tenth electromagnetic valve, an eleventh electromagnetic valve and a twelfth electromagnetic valve; the first solenoid valve is connected between a hot user inlet and a condenser heating chamber outlet, the second solenoid valve is connected between a second electric pump outlet and an energy tower inlet, the third solenoid valve is connected between the second electric pump outlet and a vacuum ice maker inlet, the fourth solenoid valve is connected between the energy tower outlet and an evaporator heat release chamber inlet, the fifth solenoid valve is connected between the vacuum ice maker outlet and a gravity desalination device inlet, the sixth solenoid valve is connected between the third electric pump outlet and the gravity desalination device inlet, the seventh solenoid valve is connected between the third electric pump outlet and the evaporator heat release chamber inlet, the eighth solenoid valve is connected between the gravity desalination device outlet and a concentrated solution reservoir, the ninth solenoid valve is connected between the gravity desalination device outlet and an ice storage pool inlet, and the tenth solenoid valve is connected between an ice storage pool outlet and an ice storage pool inlet, and the twelfth electromagnetic valve is connected between the outlet of the concentrated solution storage and the inlet of the energy tower.
The cooling liquid is potassium acetate, calcium chloride or lithium bromide salt solution.
The pipeline of the vacuum ice maker is connected with a vacuum pump, the vacuum pump is used for vacuumizing the vacuum ice maker, and the eleventh electromagnetic valve is connected with the pipeline with the vacuum pump.
A filter is arranged in the gravity desalting device and used for separating the cooling liquid and the salt-containing ice.
A filter screen is arranged in the ice storage tank and used for separating ice and water.
The ice storage pool and the water storage pool transport ice water to the evaporator heating chamber through the third electric pump and the seventh electromagnetic valve to participate in the circulating operation of the energy tower system for refrigeration.
The utility model has the advantages that:
(1) an energy tower heat pump system with energy storage and solution regeneration functions solves the problem of solution regeneration of an energy tower by adopting a vacuum freezing method and guarantees safe operation of the energy tower heat pump system.
(2) An energy tower heat pump system with both energy storage and solution regeneration functions can normally supply heat while regenerating solution, and has high solution regeneration efficiency.
(3) An energy tower heat pump system with energy storage and solution regeneration functions can store energy while solution regeneration is performed, so that the running time of a machine set in summer is reduced, and the comprehensive energy efficiency of the system all the year around is improved.
Drawings
FIG. 1 is a schematic diagram of an operation process of an energy tower heat pump system with both energy storage and solution regeneration functions;
the reference signs are: the system comprises an evaporator heat-release chamber 1, an evaporator evaporation chamber 2, a condenser cooling chamber 3, a condenser heating chamber 4, a heat consumer 5, an energy tower 6, a vacuum ice maker 7, a gravity desalination device 8, a concentrated solution storage 9, a water storage tank 10, an ice storage tank 11, a second electric pump 12, a second electromagnetic valve 13, a fourth electromagnetic valve 14, a compressor 15, a throttle valve 16, a first electromagnetic valve 17, a first electric pump 18, a third electromagnetic valve 19, a vacuum pump 20, an eleventh electromagnetic valve 21, a fifth electromagnetic valve 22, an eighth electromagnetic valve 23, a fifth electric pump 24, a twelfth electromagnetic valve 25, a sixth electromagnetic valve 26, a ninth electromagnetic valve 27, a fourth electric pump 28, a tenth electromagnetic valve 29, a third electric pump 30 and a seventh electromagnetic valve 31.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
As shown in fig. 1, the utility model relates to an energy tower heat pump system with energy storage and solution regeneration functions, which comprises an energy tower system, a heat pump system, a heat supply system, a cooling liquid purification system and an energy storage system;
the energy tower system comprises an evaporator heat-release chamber 1, a second electric pump 12 and an energy tower 6 which are sequentially connected into a loop through a transport pipeline, and the second electric pump 12 enables cooling liquid in the pipeline to circularly flow;
the heat pump system comprises an evaporator evaporation chamber 2, a compressor 15, a condenser cooling chamber 3 and a throttle valve 16 which are sequentially connected into a loop through a transport pipeline, wherein the compressor 15 is used for enabling a refrigerant in the pipeline to circularly flow, and the throttle valve 16 is used for adjusting the pressure of the refrigerant;
the evaporator heat release chamber 1 and the evaporator evaporation chamber 2 can exchange heat, so that the heat of the cooling liquid is transferred to the refrigerant;
the heating system comprises a condenser heating chamber 4, a first electric pump 18 and a heat consumer 5 which are sequentially connected into a loop through a transportation pipeline, and the first electric pump 18 enables water in the pipeline to circularly flow;
the condenser cooling chamber 3 and the condenser heating chamber 4 can exchange heat, so that the heat of the refrigerant is transferred to water;
the method is characterized in that: the cooling liquid purification system comprises a vacuum ice maker 7, a gravity desalination device 8, a concentrated solution storage 9 and a fifth electric pump 24 which are sequentially connected through a transportation pipeline, wherein an inlet of the vacuum ice maker 7 is connected with an outlet of the evaporator heat release chamber 1 through a pipeline, an outlet of the fifth electric pump 24 is connected with an inlet of the energy tower 6, and the fifth electric pump 24 is used for conveying cooling liquid from the concentrated solution storage 9 to the energy tower 6;
the energy storage system comprises a water storage tank 10, an ice storage tank 11, a third electric pump 30 and a fourth electric pump 28, the water storage tank 10, the third electric pump 30, the gravity desalination device 8, the fourth electric pump 28 and the ice storage tank 11 are sequentially connected into a loop through a transportation pipeline, the third electric pump 30 conveys water in the water storage tank 10 into the gravity desalination device 8, and the fourth electric pump 28 conveys an ice-water mixture in the gravity desalination device 8 into the ice storage tank 11;
at least one electromagnetic valve is connected in each pipeline and used for controlling the on-off of the corresponding pipeline.
In this embodiment, the energy tower heat pump system with both energy storage and solution regeneration functions further includes a first electromagnetic valve 17, a second electromagnetic valve 13, a third electromagnetic valve 19, a fourth electromagnetic valve 14, a fifth electromagnetic valve 22, a sixth electromagnetic valve 26, a seventh electromagnetic valve 31, an eighth electromagnetic valve 23, a ninth electromagnetic valve 27, a tenth electromagnetic valve 29, an eleventh electromagnetic valve 21, and a twelfth electromagnetic valve 25; the first solenoid valve 17 is connected between the inlet of the hot user 5 and the outlet of the condenser heating chamber 4, the second solenoid valve 13 is connected between the outlet of the second electric pump 12 and the inlet of the energy tower 6, the third solenoid valve 19 is connected between the outlet of the second electric pump 12 and the inlet of the vacuum ice maker 7, the fourth solenoid valve 14 is connected between the outlet of the energy tower 6 and the inlet of the evaporator heat-releasing chamber 1, the fifth solenoid valve 22 is connected between the outlet of the vacuum ice maker 7 and the inlet of the gravity desalination device 8, the sixth solenoid valve 26 is connected between the outlet of the third electric pump 30 and the inlet of the gravity desalination device 8, the seventh solenoid valve 31 is connected between the outlet of the third electric pump 30 and the inlet of the evaporator heat-releasing chamber 1, the eighth solenoid valve 23 is connected between the outlet of the gravity desalination device 8 and the concentrated solution reservoir 9, and the ninth solenoid valve 27 is connected between the outlet of the gravity desalination device 8 and the inlet, the tenth solenoid valve 29 is connected between the outlet of the ice bank 11 and the inlet of the water reservoir 10, and the twelfth solenoid valve 25 is connected between the outlet of the concentrated solution reservoir 9 and the inlet of the energy tower 6.
In this embodiment, the cooling liquid is a solution of potassium acetate, calcium chloride, or lithium bromide.
In this embodiment, the vacuum ice maker 7 is connected to a vacuum pump 20 through a pipeline, the vacuum pump 20 is used for vacuumizing the vacuum ice maker 7, and the eleventh electromagnetic valve 21 is connected to a pipeline with the vacuum pump 20.
In this embodiment, a filter is provided within the gravity desalination device 8 for separating the coolant from the salt-containing ice.
In this embodiment, a filter screen is provided in the ice storage tank 11, and the filter screen is used for separating ice and water.
When the system works, as shown in fig. 1, the method comprises the following steps:
1) closing the third electromagnetic valve 19, opening the second electromagnetic valve 13 and the fourth electromagnetic valve 14, and starting the second electric pump 12 to enable the cooling liquid to circularly flow between the evaporator heat-release chamber 1 and the energy tower 6, so that the temperature of the cooling liquid is increased;
2) starting the compressor 15, opening the throttle valve 16, enabling the refrigerant to circularly flow between the evaporator evaporation chamber 2 and the condenser cooling chamber 3, enabling the refrigerant to evaporate in the evaporator evaporation chamber 2 to absorb heat, and condensing in the condenser cooling chamber 3 to release heat;
3) opening a first electromagnetic valve 17, starting a first electric pump 18 to enable water flow to circularly flow in the heating user 5 and the condenser heating chamber 4, heating in the condenser heating chamber 4, increasing the water temperature, releasing heat in the heating user 5, and reducing the water temperature, and repeating the circulation process to finish the heat supply process;
4) closing the second electromagnetic valve 13, opening the third electromagnetic valve 19, the fifth electromagnetic valve 22, the vacuum pump 20 and the eleventh electromagnetic valve 21, starting the second electric pump 12 to transport the low-temperature cooling liquid to the vacuum ice maker 7, obtaining salt-containing ice slurry by using a vacuum freezing method, allowing the salt-containing ice slurry to flow into the gravity desalination device 8 through the fifth electromagnetic valve 22, and closing the third electromagnetic valve 19, the fifth electromagnetic valve 22, the vacuum pump 20 and the eleventh electromagnetic valve 21 until the salt-containing ice slurry in the gravity desalination device 8 reaches a set value;
5) starting the gravity desalting device 8, obtaining pure ice and concentrated cooling liquid by utilizing a gravity desalting method, and separating the concentrated cooling liquid and salt-containing ice through a filter;
6) opening the eighth electromagnetic valve 23, transporting the concentrated cooling liquid to the concentrated solution storage 9, and closing the eighth electromagnetic valve 23 after the concentrated cooling liquid reaches a set liquid level;
7) opening the twelfth electromagnetic valve 25, starting the fifth electric pump 24, injecting the concentrated cooling liquid into the energy tower 6 to obtain high-temperature concentrated cooling liquid, and entering the evaporator heat release chamber 1 through the fourth electromagnetic valve 14;
8) opening the sixth electromagnetic valve 26, starting the third electric pump 30, and injecting water into the gravity desalination device 8 to obtain pure ice slurry;
9) the ninth electromagnetic valve 27 is opened, the fourth electric pump 28 is started, pure ice slurry is transported to the ice storage tank 11, and ice and water are separated through the filter screen;
10) the tenth solenoid valve 29 is opened and water flows into the reservoir 10.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.

Claims (6)

1. An energy tower heat pump system with energy storage and solution regeneration functions comprises an energy tower system, a heat pump system, a heat supply system, a cooling liquid purification system and an energy storage system;
the energy tower system comprises an evaporator heat-release chamber (1), a second electric pump (12) and an energy tower (6), which are sequentially connected into a loop through a transport pipeline, and the second electric pump (12) enables cooling liquid in the pipeline to circularly flow;
the heat pump system comprises an evaporator evaporation chamber (2), a compressor (15), a condenser cooling chamber (3) and a throttle valve (16), wherein the evaporator evaporation chamber, the compressor (15), the condenser cooling chamber and the throttle valve (16) are sequentially connected into a loop through a conveying pipeline, the compressor (15) is used for enabling refrigerant in the pipeline to circularly flow, and the throttle valve (16) is used for adjusting the pressure of the refrigerant;
the evaporator heat release chamber (1) and the evaporator evaporation chamber (2) can exchange heat, so that the heat of the cooling liquid is transferred to the refrigerant;
the heating system comprises a condenser heating chamber (4), a first electric pump (18) and a heat consumer (5), which are sequentially connected into a loop through a transportation pipeline, and the first electric pump (18) enables water in the pipeline to circularly flow;
the condenser cooling chamber (3) and the condenser heating chamber (4) can exchange heat, so that the heat of the refrigerant is transferred to water;
the method is characterized in that: the cooling liquid purification system comprises a vacuum ice maker (7), a gravity desalination device (8), a concentrated solution storage (9) and a fifth electric pump (24), which are sequentially connected through a transport pipeline, wherein an inlet of the vacuum ice maker (7) is connected with an outlet of an evaporator heat release chamber (1) through a pipeline, an outlet of the fifth electric pump (24) is connected with an inlet of an energy tower (6), and the fifth electric pump (24) is used for conveying cooling liquid from the concentrated solution storage (9) to the energy tower (6);
the energy storage system comprises a water storage tank (10), an ice storage tank (11), a third electric pump (30) and a fourth electric pump (28), the water storage tank (10), the third electric pump (30), the gravity desalting device (8), the fourth electric pump (28) and the ice storage tank (11) are sequentially connected into a loop through a conveying pipeline, the third electric pump (30) conveys water in the water storage tank (10) into the gravity desalting device (8), and the fourth electric pump (28) conveys an ice-water mixture in the gravity desalting device (8) into the ice storage tank (11);
at least one electromagnetic valve is connected in each pipeline and used for controlling the on-off of the corresponding pipeline.
2. The energy tower heat pump system with energy storage and solution regeneration functions as claimed in claim 1, wherein: an energy tower heat pump system with energy storage and solution regeneration functions further comprises a first electromagnetic valve (17), a second electromagnetic valve (13), a third electromagnetic valve (19), a fourth electromagnetic valve (14), a fifth electromagnetic valve (22), a sixth electromagnetic valve (26), a seventh electromagnetic valve (31), an eighth electromagnetic valve (23), a ninth electromagnetic valve (27), a tenth electromagnetic valve (29), an eleventh electromagnetic valve (21) and a twelfth electromagnetic valve (25); the first electromagnetic valve (17) is connected between the inlet of a heat consumer (5) and the outlet of a condenser heating chamber (4), the second electromagnetic valve (13) is connected between the outlet of a second electric pump (12) and the inlet of an energy tower (6), the third electromagnetic valve (19) is connected between the outlet of the second electric pump (12) and the inlet of a vacuum ice maker (7), the fourth electromagnetic valve (14) is connected between the outlet of the energy tower (6) and the inlet of an evaporator heat-releasing chamber (1), the fifth electromagnetic valve (22) is connected between the outlet of the vacuum ice maker (7) and the inlet of a gravity desalting device (8), the sixth electromagnetic valve (26) is connected between the outlet of the third electric pump (30) and the inlet of the gravity desalting device (8), and the seventh electromagnetic valve (31) is connected between the outlet of the third electric pump (30) and the inlet of the evaporator heat-releasing chamber (1), the eighth solenoid valve (23) is connected between the outlet of the gravity desalination device (8) and the concentrated solution reservoir (9), the ninth solenoid valve (27) is connected between the outlet of the gravity desalination device (8) and the inlet of the ice storage tank (11), the tenth solenoid valve (29) is connected between the outlet of the ice storage tank (11) and the inlet of the water storage tank (10), and the twelfth solenoid valve (25) is connected between the outlet of the concentrated solution reservoir (9) and the inlet of the energy tower (6).
3. The energy tower heat pump system with energy storage and solution regeneration functions as claimed in claim 1, wherein: the cooling liquid is potassium acetate, calcium chloride or lithium bromide salt solution.
4. The energy tower heat pump system with energy storage and solution regeneration functions as claimed in claim 2, wherein: the vacuum ice maker (7) is connected with a vacuum pump (20) through a pipeline, the vacuum pump (20) is used for vacuumizing the vacuum ice maker (7), and the eleventh electromagnetic valve (21) is connected to the pipeline with the vacuum pump (20).
5. The energy tower heat pump system with energy storage and solution regeneration functions as claimed in claim 1, wherein: and a filter is arranged in the gravity desalting device (8) and is used for separating the cooling liquid and the salt-containing ice.
6. The energy tower heat pump system with energy storage and solution regeneration functions as claimed in claim 1, wherein: a filter screen is arranged in the ice storage tank (11) and used for separating ice and water.
CN201920674073.7U 2019-05-10 2019-05-10 Energy tower heat pump system with energy storage and solution regeneration functions Active CN209877408U (en)

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CN201920674073.7U CN209877408U (en) 2019-05-10 2019-05-10 Energy tower heat pump system with energy storage and solution regeneration functions

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111750562A (en) * 2020-05-29 2020-10-09 东南大学 Heat source tower heat pump system based on water energy storage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111750562A (en) * 2020-05-29 2020-10-09 东南大学 Heat source tower heat pump system based on water energy storage

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