Multi-source air conditioning system

Abstract

The utility model relates to a multi-source air conditioning system which comprises a compressor, a four-way valve, an evaporator, a throttling device and a multi-source condensing device. The multi-source condensing device comprises a first air inlet, an atomizing and spraying device, a first heat exchanger, a fan, a partition plate, a demister, a second air inlet, a second heat exchanger, a filler layer, a water collecting tank, a circulating pump and a third heat exchanger; according to the air-conditioning system, the comprehensive energy efficiency ratio of the air-conditioning system is improved, energy is saved, and carbon emission is reduced in the mode that air cooling, evaporation cooling and water cooling are combined for refrigeration and air source and water source combined for heating.

Description

Technical Field

[0001] The utility model relates to a multi-source cooling and heating air-conditioning system and method, in particular to an air-conditioning system that combines air cooling, evaporative cooling and water cooling for refrigeration and combines air source and water source for heating, belonging to the technical field of heating, ventilation and energy conservation. Background Art

[0002] Although the current water-cooled air-conditioning units and single-cooling evaporative condensing air-conditioners have relatively high energy efficiency ratios, they cannot be used for winter heating, and their applicable areas are limited; for the current evaporative condensing cooling and heating air-conditioners, the improvement of the refrigeration coefficient compared with the air-cooled cooling and heating air-conditioners is limited, and at the same time, the heating energy efficiency cannot be improved; for the current dual-source air-conditioning system, the air-cooled condenser and the cooling tower are separately arranged. Although the refrigeration coefficient is relatively high, the floor area and the circulating water volume are large, the installation and use are inconvenient, and at the same time, the heating energy efficiency cannot be improved. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the utility model provides an integrated multi-source cooling and heating air-conditioning system with a higher comprehensive energy efficiency ratio, less floor area and circulating water volume, convenient installation and use, and a wide range of applicable areas.

[0004] The multi-source cooling and heating air-conditioning system of the utility model comprises a compressor, a four-way valve, an evaporator, a throttling device and a multi-source condensing device; the multi-source condensing device comprises a first air inlet, a spraying device, a first heat exchanger, a fan, a partition board, a demister, a second air inlet, a second heat exchanger, a packing layer, a water collecting tank, a circulating pump and a third heat exchanger; the exhaust port of the compressor is connected to the a interface of the four-way valve through a pipeline; the b interface of the four-way valve is connected to the inlet of the first heat exchanger through a pipeline; the c interface of the four-way valve is connected to the air inlet of the compressor through a pipeline; the d interface of the four-way valve is connected to the outlet of the evaporator through a pipeline; the inlet of the evaporator is connected to the outlet of the throttling device through a pipeline; the inlet of the throttling device is connected to the outlet of the third heat exchanger through a pipeline; the inlet of the third heat exchanger is connected to the outlet of the second heat exchanger through a pipeline; the inlet of the second heat exchanger is connected to the outlet of the first heat exchanger through a pipeline; the first air inlet, the atomizing spraying device, the second heat exchanger and the packing layer are distributed from top to bottom on one side of the partition board; the second air inlet is located on one side of the packing layer of the multi-source condensing device; the fan, the first heat exchanger and the demister are distributed from top to bottom on the other side of the partition board; the water collecting tank is located below the packing layer, the partition board and the demister; the inlet and outlet of the circulating pump are respectively connected to the water outlet of the water collecting tank and the water inlet of the third heat exchanger through pipelines; the water outlet of the third heat exchanger is connected to the water inlet of the atomizing spraying device through a pipeline.

[0005] The multi-source cooling and heating air-conditioning system of the present utility model further includes a first switching valve and a second switching valve; the outlet of the first switching valve is connected to the outlet of the second switching valve and the inlet of the circulation pump through a pipeline; the inlet of the second switching valve is connected to the water outlet of the water collecting tank.

[0006] The beneficial effects of the present utility model are as follows: (1) Compared with the current water-cooled air-conditioning unit and single-cooling evaporative condenser air-conditioning, the multi-source cooling and heating air-conditioning system of the present utility model can be used for both cooling and heating, and has a wide range of applicable areas; (2) Compared with the current evaporative condenser cooling and heating air-conditioning, the multi-source cooling and heating air-conditioning system of the present utility model not only has a higher refrigeration coefficient, but also can improve the heating energy efficiency, reduce power consumption and operating costs; (3) Compared with the current dual-cooling source air-conditioning system, the multi-source cooling and heating air-conditioning system of the present utility model adopts a combination of air-cooling, evaporative cooling and water-cooling, and has a higher refrigeration coefficient; the air-cooled condenser and the cooling module are integrally arranged, with a smaller floor area and circulating water volume, convenient installation and use, and at the same time can improve the heating energy efficiency. Description of the Drawings

[0007] Figure 1 It is a structural schematic diagram of the present utility model.

[0008] In the figure: 1. First air inlet, 2. Atomizing spray device, 3. First heat exchanger, 4. Fan, 5. Partition board, 6. Demister, 7. First switching valve, 8. Evaporator, 9. Four-way valve, 10. Second air inlet, 11. Second heat exchanger, 12. Packing layer, 13. Water collecting tank, 14. Second switching valve, 15. Circulation pump, 16. Third heat exchanger, 17. Throttling device, 18. Compressor. Detailed Embodiments

[0009] Such as Figure 1As shown in the figure, the multi-source cooling and heating air-conditioning system of the present utility model includes a compressor 18, a four-way valve 9, an evaporator 8, a throttling device 17 and a multi-source condensing device; the multi-source condensing device includes a first air inlet 1, an atomizing spray device 2, a first heat exchanger 3, a fan 4, a partition 5, a demister 6, a second air inlet 10, a second heat exchanger 11, a packing layer 12, a water collection tank 13, a circulation pump 15 and a third heat exchanger 16; the exhaust port of the compressor 18 is connected to the a interface of the four-way valve 9 through a pipeline; the b interface of the four-way valve 9 is connected to the inlet of the first heat exchanger 3 through a pipeline; the c interface of the four-way valve 9 is connected to the inlet of the compressor 18 through a pipeline; the d interface of the four-way valve 9 is connected to the outlet of the evaporator 8 through a pipeline; the inlet of the evaporator 8 is connected to the outlet of the throttling device 17 through a pipeline; the inlet of the throttling device 17 is connected to the outlet of the third heat exchanger 16 through a pipeline; the inlet of the third heat exchanger 16 is connected to the outlet of the second heat exchanger 11 through a pipeline; the inlet of the second heat exchanger 11 is connected to the outlet of the first heat exchanger 3 through a pipeline; the first air inlet 1, the atomizing spray device 2, the second heat exchanger 11 and the packing layer 12 are distributed from top to bottom on one side of the partition 5; the second air inlet 10 is located on one side of the packing layer 12 of the multi-source condensing device; the fan 4, the first heat exchanger 3 and the demister 6 are distributed from top to bottom on the other side of the partition 5; the water collection tank 13 is located below the packing layer 12, the partition 5 and the demister 6; the inlet and outlet of the circulation pump 15 are respectively connected to the water outlet of the water collection tank 13 and the water inlet of the third heat exchanger 16 through pipelines; the water outlet of the third heat exchanger 16 is connected to the water inlet of the atomizing spray device 2 through a pipeline.

[0010] The multi-source cooling and heating air-conditioning system of the present utility model further includes a first switching valve 7 and a second switching valve 14; the outlet of the first switching valve 7 is connected to the outlet of the second switching valve 14 and the inlet of the circulation pump 15 through a pipeline; the inlet of the second switching valve 14 is connected to the water outlet of the water collection tank 13.

[0011] The specific steps of refrigeration of the present utility model are as follows: Inject an appropriate amount of demineralized water into the water collecting tank 13, close the first switching valve 7, and open the second switching valve 14; Start the fan 4, the circulation pump 15 and the compressor 18. The refrigerant passes through the first heat exchanger 3, the second heat exchanger 11 and the third heat exchanger 16 in sequence through the a and b interfaces of the four-way valve 8. The air sucked in by the fan 4 through the first air inlet 1 and the second air inlet 10 exchanges heat with the first heat exchanger 3. The air sucked in by the fan 4 through the first air inlet 1 and the demineralized water sprayed by the atomizing spraying device 2 cooperate to exchange heat with the second heat exchanger 11. The sprayed water that evaporatively exchanges heat with the second heat exchanger 11 falls into the water collecting tank 13 after heat and mass transfer with the air entering through the second air inlet 10 through the packing layer 12. The cooling water in the water collecting tank 13 is driven by the circulation pump 15 to enter the third heat exchanger 16 through the second switching valve 14, exchanges heat with the refrigerant, and then enters the atomizing spraying device 2; The refrigerant after cooling and condensation enters the throttling device 17 for throttling, expands and absorbs heat in the evaporator 8 for refrigeration, and then enters the compressor 18 through the d and c interfaces of the four-way valve 9 to complete the refrigeration cycle.

[0012] The specific steps of heating of the present utility model are as follows: Drain the demineralized water in the water collecting tank 1, open the first switching valve 7, and close the second switching valve 14; Start the fan 4, the circulation pump 15 and the compressor 18. The refrigerant enters the evaporator 8 through the a and d interfaces of the four-way valve 8 to condense and release heat, and then enters the third heat exchanger 16, the second heat exchanger 11 and the first heat exchanger 3 in sequence after throttling through the throttling device 17 to expand and absorb heat; The external heat source water entering through the first switching valve 7 is sucked by the circulation pump 15 into the third heat exchanger 16 to exchange heat with the refrigerant. The air sucked in by the fan 4 through the first air inlet 1 and the second air inlet 10 exchanges heat with the refrigerant in the first heat exchanger 3 and the second heat exchanger 11; The refrigerant after absorbing heat and evaporating enters the compressor 18 through the b and c interfaces of the four-way valve 9 to complete the heating cycle.

[0013] The above are only the preferred feasible implementation schemes of the present utility model, and are not intended to limit the patent scope of the present utility model. Therefore, all method steps and equivalent changes made by using the content of this specification and the drawings are within the protection scope of the present utility model.

Claims

1. A multi-source cooling and heating air-conditioning system, characterized in that: It includes a compressor (18), a four-way valve (9), an evaporator (8), a throttling device (17) and a multi-source condensing device; the multi-source condensing device includes a first air inlet (1), an atomizing spray device (2), a first heat exchanger (3), a fan (4), a partition (5), a demister (6), a second air inlet (10), a second heat exchanger (11), a packing layer (12), a water collecting tank (13), a circulation pump (15) and a third heat exchanger (16); the exhaust port of the compressor (18) is connected to the a interface of the four-way valve (9) through a pipeline; the b interface of the four-way valve (9) is connected to the inlet of the first heat exchanger (3) through a pipeline; the c interface of the four-way valve (9) is connected to the inlet of the compressor (18) through a pipeline; the d interface of the four-way valve (9) is connected to the outlet of the evaporator (8) through a pipeline; the inlet of the evaporator (8) is connected to the outlet of the throttling device (17) through a pipeline; the inlet of the throttling device (17) is connected to the outlet of the third heat exchanger (16) through a pipeline; the inlet of the third heat exchanger (16) is connected to the outlet of the second heat exchanger (11) through a pipeline; the inlet of the second heat exchanger (11) is connected to the outlet of the first heat exchanger (3) through a pipeline; the first air inlet (1), the atomizing spray device (2), the second heat exchanger (11) and the packing layer (12) are distributed from top to bottom on one side of the partition (5); the second air inlet (10) is located on one side of the packing layer (12) of the multi-source condensing device; the fan (4), the first heat exchanger (3) and the demister (6) are distributed from top to bottom on the other side of the partition (5); the water collecting tank (13) is located below the packing layer (12), the partition (5) and the demister (6); the inlet and outlet of the circulation pump (15) are respectively connected to the water outlet of the water collecting tank (13) and the water inlet of the third heat exchanger (16) through pipelines; the water outlet of the third heat exchanger (16) is connected to the water inlet of the atomizing spray device (2) through a pipeline.

2. The multi-source cooling and heating air-conditioning system according to claim 1, wherein: It further includes a first switching valve (7) and a second switching valve (14); the outlet of the first switching valve (7) is connected to the outlet of the second switching valve (14) and the inlet of the circulation pump (15) through a pipeline; the inlet of the second switching valve (14) is connected to the water outlet of the water collecting tank (13).

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