CN213146802U - Water source heat pump air conditioning system using lake water as cold and heat source - Google Patents
Water source heat pump air conditioning system using lake water as cold and heat source Download PDFInfo
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- CN213146802U CN213146802U CN201920654717.6U CN201920654717U CN213146802U CN 213146802 U CN213146802 U CN 213146802U CN 201920654717 U CN201920654717 U CN 201920654717U CN 213146802 U CN213146802 U CN 213146802U
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Abstract
The utility model discloses an air-conditioning cooling and heating system for hotel buildings, relating to a water source heat pump air-conditioning system taking lake water as a cold and heat source; comprises an air-conditioning cooling subsystem, an air-conditioning heating subsystem and a domestic hot water subsystem; the system also comprises a water source heat pump unit, a centrifugal refrigerating unit, a cooling tower, a plate heat exchanger, a cold supply water distributor-collector, a heat supply water distributor-collector, a lake water pump, a water source side primary variable frequency circulating water pump, an air conditioner hot water pump, a domestic hot water heat source pump, a first freezing water pump, a second freezing water pump, a cooling water pump and a lake water recharge pipe. Can exchange heat from lake water and get rid of the dependence on the environment in an air heat dissipation mode.
Description
Technical Field
The utility model relates to an air conditioner cooling, heating system for hotel's building, in particular to use lake water as the water source heat pump air conditioning system of cold and hot source.
Background
In hotel buildings, a central air-conditioning cold water system has a single function, can only supply cold, cannot meet the heat supply requirement in winter, and is generally additionally provided with heating facilities such as a boiler and the like in order to meet the heat supply requirement, so that the system is redundant, occupies a large machine room area, and causes adverse effects such as pollution to the environment; the air-cooled heat pump system is adopted to greatly influence the cooling and heating efficiency by the outdoor environment, the efficiency of the air-cooled heat pump set can be seriously influenced by overhigh outdoor temperature in summer or overlow outdoor temperature in winter, and the conditions of serious insufficient cooling capacity and heating capacity and the like are generated.
Disclosure of Invention
The utility model provides an air conditioner cooling, heating system for hotel's building to the efficiency of heat transfer system receives the big problem of outdoor environment influence among the solution prior art.
In order to solve the technical problem, the utility model discloses a technical scheme does:
the water source heat pump air conditioning system with lake water as a cold and heat source comprises an air conditioning and cooling subsystem, an air conditioning and heating subsystem and a domestic hot water subsystem; the system also comprises a water source heat pump unit, a centrifugal refrigerating unit, a cooling tower, a plate heat exchanger, a cold supply water distributor-collector, a heat supply water distributor-collector, a lake water pump, a water source side primary variable frequency circulating water pump, an air conditioner hot water pump, a domestic hot water heat source pump, a first freezing water pump, a second freezing water pump, a cooling water pump and a lake water recharge pipe;
the air conditioner cooling subsystem consists of a first cooling unit and a second cooling unit;
the first cold supply unit comprises a water source heat pump unit, a plate heat exchanger, a cold supply water distributor and collector, a lake water pump, a water source side primary variable frequency circulating water pump, a first chilled water pump and a lake water recharge pipe, wherein the water source heat pump unit is connected with a cold supply water distributor and collector through the first chilled water pump and is supplied to a tail end device for use; the water source heat pump unit is connected with the water source side primary variable frequency circulating water pump, the water source side primary variable frequency circulating water pump is connected with the plate heat exchanger, and the plate heat exchanger is connected with the lake water pump and the lake water recharging pipe;
the second cooling unit comprises a centrifugal refrigerating unit, a cooling tower, a cooling water distributor and collector, a second chilled water pump and a cooling water pump, and the centrifugal refrigerating unit is connected with the cooling water distributor and collector through the second chilled water pump and is supplied to an end device for use; the centrifugal refrigerating unit is connected with the cooling water pump, and the cooling water pump is connected with the cooling tower;
the air-conditioning heat supply subsystem comprises a water source heat pump unit, a plate heat exchanger, a heat supply water distributor-collector, a lake water pump, a water source side primary variable frequency circulating water pump, an air-conditioning hot water pump and a lake water recharging pipe, wherein the water source heat pump unit is connected with the heat supply water distributor-collector through the air-conditioning hot water pump and is used by a tail end device; the water source heat pump unit is connected with the primary variable frequency circulating water pump at the water source side, the primary variable frequency circulating water pump at the water source side is connected with the plate heat exchanger, and the plate heat exchanger is connected with the lake water pump and the lake water recharge pipe;
the domestic hot water subsystem comprises a water source heat pump unit and a domestic hot water heat source pump, the water source heat pump unit is connected with the domestic hot water heat source pump, and the domestic hot water heat source pump is supplied to a use terminal.
As a further improvement of the technical scheme, one side of the water source heat pump unit is connected with a seventh electric valve, an eighth electric valve, a ninth electric valve, a tenth electric valve, an eleventh electric valve and a twelfth electric valve; the other side of the water source heat pump unit is connected with a first electric valve, a second electric valve, a third electric valve, a fourth electric valve, a fifth electric valve and a sixth electric valve.
As a further improvement of the technical scheme, the system comprises a first expansion water tank, a second expansion water tank and a third expansion water tank, wherein the first expansion water tank is connected to an inlet of the air-conditioning hot water pump, the second expansion water tank is connected to the cold supply water collector, and the third expansion water tank is connected to an inlet of the primary variable frequency circulating water pump at the water source side.
As a further improvement of the technical scheme, the device comprises a water filter and a desander, wherein the water filter and the desander are arranged on the water outlet side of the lake water pump.
The utility model has the advantages that:
1. the energy efficiency is high, the temperature of the water source heat pump available water body is about 18-35 ℃ in summer, the temperature is lower than that of ambient air, the unit can release heat more easily, the refrigeration condensation temperature is reduced, and the cooling effect is better than that of an air-cooled type cooling tower and a cooling tower; the temperature is about 12-22 ℃ in winter, the temperature is higher than that of ambient air, the unit can obtain heat more easily, the evaporation temperature is increased during heat supply, and the heating efficiency is higher than that of an air source heat pump;
2. the system can supply cold, warm and hot water jointly, meets the requirements of large cooling capacity in summer, heating in winter and hot water supply all the year around in hotel buildings in hot areas in winter and summer, and saves heating equipment such as traditional boiler rooms;
3. the method is environment-friendly, belongs to the renewable energy utilization technology, and accords with the national policy.
Drawings
FIG. 1 is a schematic diagram of a water source heat pump air conditioning system using lake water as a cold and heat source according to an embodiment of the present invention;
FIG. 2 is a control schematic diagram of a water source heat pump unit according to an embodiment of the present invention;
in the figure, 1-a water source heat pump unit; 2-centrifugal refrigerating unit; 3-a cooling tower; 4-a plate heat exchanger; 5-cooling water dividing and collecting device; 6-heat supply water dividing and collecting device; 7-lake water pump; 8-a primary variable-frequency circulating water pump at the water source side; 9-air-conditioning hot water pump; 10-domestic hot water heat source pump; 11-a first chilled water pump; 12-a second chilled water pump; 13-a cooling water pump; 14-a first expansion tank; 15-a second expansion tank; 16-a third expansion tank; 17-a water filter; 18-a desander; 19-lake water recharge pipe; 20-water intake pipe of lake water; 21-chemical treatment cylinder; 22-first electrically operated valve; 23-a second electrically operated valve; 24-a third electrically operated valve; 25-fourth electrically operated valve; 26-fifth electrically operated valve; 27-sixth electrically operated valve; 28-seventh electrically operated valve; 29-eighth electrically operated valve; 30-ninth electrically operated valve; 31-tenth electrically operated valve; 32-eleventh electrically operated valve; 33-twelfth electro valve.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, a water source heat pump air conditioning system using lake water as a cold and heat source comprises an air conditioning cooling subsystem, an air conditioning heating subsystem and a domestic hot water subsystem; the system also comprises a water source heat pump unit 1, a centrifugal refrigerating unit 2, a cooling tower 3, a plate heat exchanger 4, a cold supply water distributor-collector 5, a heat supply water distributor-collector 6, a lake water pump 7, a water source side primary variable frequency circulating water pump 8, an air conditioning water heat pump 9, a domestic hot water heat source pump 10, a first freezing water pump 11, a second freezing water pump 12, a cooling water pump 13 and a lake water recharge pipe 19; the lake water pump controls a lake water intake pipe 20 to take water into the lake.
The air conditioner cooling subsystem consists of a first cooling unit and a second cooling unit;
the first cold supply unit comprises a water source heat pump unit 1, a plate heat exchanger 4, a cold supply water distributor-collector 5, a lake water pump 7, a water source side primary variable frequency circulating water pump 8, a first chilled water pump 11 and a lake water recharging pipe 19, wherein the water source heat pump unit 1 is connected with the cold supply water distributor-collector 5 through the first chilled water pump 11 and is supplied to a tail end device for use; the water source heat pump unit 1 is connected with the water source side primary variable frequency circulating water pump 8, the water source side primary variable frequency circulating water pump 8 is connected with the plate heat exchanger 4, and the plate heat exchanger 4 is connected with the lake water pump 7 and the lake water recharging pipe 19;
the second cooling unit comprises a centrifugal refrigerating unit 2, a cooling tower 3, a cooling water distribution and collection device 5, a second chilled water pump 12 and a cooling water pump 13, wherein the centrifugal refrigerating unit 2 is connected with the cooling water distribution and collection device 5 through the second chilled water pump 12 and is supplied to a tail end device for use; the centrifugal refrigerating unit 2 is connected with the cooling water pump 13, and the cooling water pump 13 is connected with the cooling tower 3;
the air-conditioning heat supply subsystem comprises a water source heat pump unit 1, a plate heat exchanger 4, a heat supply water distribution and collection device 6, a lake water pump 7, a water source side primary variable frequency circulating water pump 8, an air-conditioning heat pump 9 and a lake water recharging pipe 19, wherein the water source heat pump unit 1 is connected with the heat supply water distribution and collection device 6 through the air-conditioning heat pump 9 and is supplied to a tail end device for use; the water source heat pump unit 1 is connected with the water source side primary variable frequency circulating water pump 8, the water source side primary variable frequency circulating water pump 8 is connected with the plate heat exchanger 4, and the plate heat exchanger 4 is connected with the lake water pump 7 and the lake water recharging pipe 19;
the domestic hot water subsystem comprises a water source heat pump unit 1 and a domestic hot water heat source pump 10, the water source heat pump unit 1 is connected with the domestic hot water heat source pump 10, and the domestic hot water heat source pump 10 is supplied to a user terminal.
In the water source heat pump air conditioning system taking lake water as a cold and heat source, low-grade energy of the lake water is utilized, the water supply temperature is 7 ℃ and the water return temperature is 12 ℃ in summer, and one water source heat pump recovers heat to serve as domestic hot water; in winter, the temperature of supplied water is 55 ℃, the temperature of returned water is 50 ℃, and the part of the domestic hot water with insufficient temperature is heated by an auxiliary heating facility;
further, a seventh electric valve 28, an eighth electric valve 29, a ninth electric valve 30, a tenth electric valve 31, an eleventh electric valve 32, and a twelfth electric valve 33 are connected to one side of the water source heat pump unit 1; the other side of the water source heat pump unit 1 is connected with a first electric valve 22, a second electric valve 23, a third electric valve 24, a fourth electric valve 25, a fifth electric valve 26 and a sixth electric valve 27. One side of the water source heat pump unit 1 is connected with a chemical treatment cylinder 21, in summer and transition seasons, a first electric valve 22, a second electric valve 23 and a third electric valve 24 on the evaporator side of the water source heat pump unit 1 are opened, a fourth electric valve 25, a fifth electric valve 26 and a sixth electric valve 27 are closed, a ninth electric valve 30, a tenth electric valve 31 and an eleventh electric valve 32 on the condenser side of the water source heat pump unit 1 are opened, and a seventh electric valve 28, an eighth electric valve 29 and a twelfth electric valve 33 are closed. In winter, the fourth electric valve 25, the fifth electric valve 26 and the sixth electric valve 27 on the evaporator side of the water source heat pump unit 1 are opened, the first electric valve 22, the second electric valve 23 and the third electric valve 24 are closed, the seventh electric valve 28, the eighth electric valve 29 and the ninth electric valve 30 on the condenser side of the water source heat pump unit 1 are opened, and the tenth electric valve 31, the eleventh electric valve 32 and the twelfth electric valve 33 are closed. Through the conversion of the electric valves, the two centrifugal refrigerating units 2 and the three water source heat pump units 1 can simultaneously supply cold in summer, and domestic hot water is simultaneously supplied to the heat dissipation side of one water source heat pump unit 1; in winter, two water source heat pump units 1 supply heat, and one water source heat pump unit 1 supplies domestic hot water.
Further, the air-conditioning hot water pump comprises a first expansion water tank 14, a second expansion water tank 15 and a third expansion water tank 16, wherein the first expansion water tank 14 is connected to an inlet of the air-conditioning hot water pump 9, the second expansion water tank 15 is connected to the cold supply water collector 5, and the third expansion water tank 16 is connected to an inlet of the water source side primary variable frequency circulating water pump 8.
The first expansion water tank 14, the second expansion water tank 15 and the third expansion water tank 16 can keep the closed water system from emptying, vaporizing and overpressure, and keep a certain circulating pressure,
further, a water filter 17 and a sand remover 18 are included, and the water filter 17 and the sand remover 18 are arranged on the water outlet side of the lake water pump 7.
The sand remover 18 and the water filter 17 are arranged to effectively remove impurities in lake water.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (3)
1. A water source heat pump air conditioning system taking lake water as a cold and heat source comprises an air conditioning cooling subsystem, an air conditioning heating subsystem and a domestic hot water subsystem; the method is characterized in that: the system also comprises a water source heat pump unit (1), a centrifugal refrigerating unit (2), a cooling tower (3), a plate heat exchanger (4), a cold supply water collector (5), a heat supply water collector (6), a lake water pump (7), a water source side primary variable frequency circulating water pump (8), an air conditioning water heat pump (9), a domestic hot water heat source pump (10), a first freezing water pump (11), a second freezing water pump (12), a cooling water pump (13) and a lake water recharge pipe (19);
the air conditioner cooling subsystem consists of a first cooling unit and a second cooling unit;
the first cold supply unit comprises a water source heat pump unit (1), a plate heat exchanger (4), a cold supply water distributor-collector (5), a lake water pump (7), a water source side primary variable frequency circulating water pump (8), a first chilled water pump (11) and a lake water recharging pipe (19), and the water source heat pump unit (1) is connected with the cold supply water distributor-collector (5) through the first chilled water pump (11) and is supplied to a tail end device for use; the water source heat pump unit (1) is connected with the primary variable frequency circulating water pump (8) on the water source side, the primary variable frequency circulating water pump (8) on the water source side is connected with the plate heat exchanger (4), and the plate heat exchanger (4) is connected with the lake water pump (7) and the lake water recharging pipe (19); after heat exchange is carried out through the plate heat exchanger (4), the lake water pump (7) and the lake water recharge pipe (19) are connected with the lake water to radiate heat to the lake water;
the second cooling unit comprises a centrifugal refrigerating unit (2), a cooling tower (3), a cooling water distributor-collector (5), a second chilled water pump (12) and a cooling water pump (13), and the centrifugal refrigerating unit (2) is connected with the cooling water distributor-collector (5) through the second chilled water pump (12) and is supplied to a tail end device for use; the centrifugal refrigerating unit (2) is connected with the cooling water pump (13), and the cooling water pump (13) is connected with the cooling tower (3); dissipating heat to the atmosphere through a cooling tower (3);
the air-conditioning heat supply subsystem comprises a water source heat pump unit (1), a plate heat exchanger (4), a heat supply water distribution and collection device (6), a lake water pump (7), a water source side primary variable frequency circulating water pump (8), an air-conditioning hot water pump (9) and a lake water recharging pipe (19), wherein the water source heat pump unit (1) is connected with the heat supply water distribution and collection device (6) through the air-conditioning hot water pump (9) and is used by a tail end device; the water source heat pump unit (1) is connected with the primary variable-frequency circulating water pump (8) on the water source side, the primary variable-frequency circulating water pump (8) on the water source side is connected with the plate heat exchanger (4), and the plate heat exchanger (4) is connected with a lake water pump (7) and a lake water recharging pipe (19); after heat exchange is carried out through the plate heat exchanger (4), the lake water pump (7) and the lake water recharge pipe (19) are connected with the lake water to take heat from the lake water;
the domestic hot water subsystem comprises a water source heat pump unit (1) and a domestic hot water heat source pump (10), the water source heat pump unit (1) is connected with the domestic hot water heat source pump (10), and the domestic hot water heat source pump (10) is supplied to a use terminal.
2. The water source heat pump air conditioning system taking lake water as a cold and heat source as claimed in claim 1, wherein: one side of the water source heat pump unit (1) is connected with a seventh electric valve (28), an eighth electric valve (29), a ninth electric valve (30), a tenth electric valve (31), an eleventh electric valve (32) and a twelfth electric valve (33); the other side of the water source heat pump unit (1) is connected with a first electric valve (22), a second electric valve (23), a third electric valve (24), a fourth electric valve (25), a fifth electric valve (26) and a sixth electric valve (27).
3. The water source heat pump air conditioning system taking lake water as a cold and heat source as claimed in claim 1, wherein: the device comprises a water filter (17) and a desander (18), wherein the water filter (17) and the desander (18) are arranged on the water outlet side of the lake water pump (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920654717.6U CN213146802U (en) | 2019-05-09 | 2019-05-09 | Water source heat pump air conditioning system using lake water as cold and heat source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920654717.6U CN213146802U (en) | 2019-05-09 | 2019-05-09 | Water source heat pump air conditioning system using lake water as cold and heat source |
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| CN213146802U true CN213146802U (en) | 2021-05-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294903A (en) * | 2021-07-09 | 2021-08-24 | 北京新典恒益科技有限公司 | Energy-saving building temperature control system |
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- 2019-05-09 CN CN201920654717.6U patent/CN213146802U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294903A (en) * | 2021-07-09 | 2021-08-24 | 北京新典恒益科技有限公司 | Energy-saving building temperature control system |
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