Composite natural cold source closed water chilling unit

Abstract

The utility model belongs to the technical field of water chilling units, and particularly relates to a composite cold natural cold source closed type water chilling unit which comprises a water chilling unit body, a spraying system, an evaporation heat exchange pipe, an air inlet and an air outlet. An air cooling heat exchange pipe is arranged at an air inlet of the water chiller body, and the air cooling heat exchange pipe is circularly connected with a cooling water evaporation cooling device through a cooling water circulation system. The composite natural cold source closed type water chiller unit can effectively save electric energy, widens the use range of the unit, and improves the utilization rate of the unit. The device is energy-saving, environment-friendly and stable and reliable in operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of chillers, and particularly relates to a composite cold natural cold source closed chiller. Background Technique

[0002] At present, there are generally two ways to prepare cold water. One is a vapor compression cycle refrigeration unit, which can prepare low-temperature cold water, and the refrigerant is the refrigerant; the other is a cooling tower, which mainly uses the evaporation cooling method of water and can prepare high-temperature cold water. The limit temperature of the cold water is the ambient wet bulb temperature.

[0003] To sum up, currently using a refrigeration unit to prepare cold water can obtain low-temperature cooling water, but the cold source is the refrigerant, not a natural cold source, which is not environmentally friendly and consumes a large amount of electric energy; the cold source of the cooling tower is air and water, which belongs to a natural cold source, but the prepared cold water has a high temperature and its application range is limited. Content of the Utility Model

[0004] The utility model provides a composite cold natural cold source closed chiller, which can solve the problems pointed out in the background technique.

[0005] A composite cold natural cold source closed chiller includes a chiller body, a spraying system, evaporation heat exchange tubes, an air inlet and an air outlet. The spraying water is evenly sprayed onto the evaporation heat exchange tubes through the spraying system. An air-cooled heat exchange tube is provided at the air inlet of the chiller body, and the air-cooled heat exchange tube is connected in a cycle with a cooling water evaporation cooling device through a cooling water circulation system.

[0006] Preferably, the cooling water evaporation cooling device is a water-cooled filler or a wet curtain. The cooling water circulation system includes a cooling water circulation pipeline, a cooling water circulation power component, a cooling water tank, a cooling water inlet, a cooling water distributor, and a cooling water outlet. The cooling water circulation pipeline is respectively connected to the cooling water inlet and the cooling water outlet, and is connected to the cooling water evaporation cooling device to form a cyclic connection. A cooling water distributor is provided below the cooling water inlet, a cooling water evaporation cooling device is provided below the cooling water distributor, a cooling water tank is provided below the cooling water evaporation cooling device, a cooling water outlet is provided on the cooling water tank, and a cooling water circulation power component is provided on the cooling water circulation pipeline.

[0007] Preferably, the spraying system includes a spraying circulation pipeline, a spraying circulation power component, a spraying water tank, spray heads, and a spraying water distributor.

[0008] Preferably, both the spraying circulation power component and the cooling water circulation power component are water pumps.

[0009] Preferably, the air-cooled heat exchange tube is a finned heat exchange tube.

[0010] Beneficial effects: The present utility model provides a composite cold natural cold source closed-type chilled water unit,

[0011] 1. By using natural cold sources, air and water, compared with the vapor compression cycle refrigeration unit using refrigerant, it is beneficial to environmental protection.

[0012] 2. By adopting the combination of evaporative cooling and air cooling, compared with the vapor compression cycle refrigeration unit using a compressor, the EER value is greatly improved, effectively saving electric energy.

[0013] 3. By adopting the combination of evaporative cooling and air cooling, compared with the cooling tower using the evaporative cooling method, the chilled water temperature can be reduced below the wet bulb temperature of the ambient air, broadening the application range of the unit.

[0014] 4. When refrigerating water, the chilled water is in a closed cycle, and the water quality does not contact the outside world, so the water quality is stable. Description of the drawings

[0015] Figure 1 It is a structural schematic diagram of the present utility model,

[0016] Description of the reference numerals in the drawings:

[0017] The reference numerals in the figure: the chilled water unit body 1; the spray circulation pipeline 21; the spray circulation power component 22; the spray water water tank 23; the spray head 24; the spray water distributor 25; the evaporation heat exchange tube 3; the air inlet 4; the air outlet 5; the air-cooled heat exchange tube 6; the cooling water circulation pipeline 71; the cooling water circulation power component 72; the cooling water water tank 73; the cooling water inlet 74; the cooling water distributor 75; the cooling water outlet 76; the cooling water evaporative cooling device 8. Specific embodiments

[0018] The following will describe in detail a specific embodiment of the present utility model in conjunction with the drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific embodiments.

[0019] Embodiment: As Figure 1 shown, a composite cold natural cold source closed-type chilled water unit provided by an embodiment of the present utility model includes a chilled water unit body 1, a spray system, an evaporation heat exchange tube 3, an air inlet 4 and an air outlet 5. A exhaust fan is provided at the air outlet 5. The spray water is evenly sprayed onto the evaporation heat exchange tube 3 through the spray system. The two ends of the evaporation heat exchange tube 3 are a medium outlet and a medium inlet. An air-cooled heat exchange tube 6 is provided at the air inlet 4 of the chilled water unit body 1. The air-cooled heat exchange tube 6 is connected in a cycle with the cooling water evaporative cooling device 8 through a cooling water circulation system. The air-cooled heat exchange tube 6 can be a finned heat exchange tube.

[0020] Specifically, the cooling water evaporation cooling device 8 is a water-cooled filler or a wet curtain. The cooling water circulation system includes a cooling water circulation pipeline 71, a cooling water circulation power component 72, a cooling water tank 73, a cooling water inlet 74, a cooling water distributor 75, and a cooling water outlet 76. The cooling water circulation pipeline 71 is respectively connected to the cooling water inlet 74 and the cooling water outlet 76, and is connected to the cooling water evaporation cooling device 8 to form a circular connection. A cooling water distributor 75 is provided below the cooling water inlet 74. The cooling water distributor 75 is a cooling water distribution tank, and a plurality of water distribution holes are provided at the bottom thereof to evenly distribute the cooling water onto the cooling water evaporation cooling device 8. The cooling water evaporation cooling device 8 is provided below the cooling water distributor 75, and the cooling water tank 73 is provided below the cooling water evaporation cooling device 8. The cooling water outlet 76 is provided on the cooling water tank 73, and the cooling water circulation power component 72 is provided on the cooling water circulation pipeline 71.

[0021] Specifically, the spraying system includes a spraying circulation pipeline 21, a spraying circulation power component 22, a spraying water tank 23, a spray head 24, and a spraying water distributor 25. The spraying circulation power component 22 is provided on the spraying circulation pipeline 21. The spraying water distributor 25 is provided below the spray head 24. The spraying water distributor 25 is a spraying water distribution tank, and a plurality of water distribution holes are provided at the bottom thereof to evenly distribute the spraying water onto the evaporation heat exchange tubes 3. The evaporation heat exchange tubes 3 are provided below the spraying water distributor 25, and the spraying water tank 23 is provided below the evaporation heat exchange tubes 3. The spraying water tank 23 and the spray head 24 are circularly connected through the spraying circulation pipeline 21.

[0022] Specifically, both the spraying circulation power component 22 and the cooling water circulation power component 72 are water pumps.

[0023] The above discloses only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A closed water chiller with a composite natural cooling source, comprising a water chiller body (1), a spray system, an evaporative heat exchange tube (3), an air inlet (4) and an air outlet (5), wherein the spray system is used to evenly spray spray water onto the evaporative heat exchange tube (3), and the characteristics are: An air-cooling heat exchange pipe (6) is provided at the air inlet (4) of the chiller body (1), and the air-cooling heat exchange pipe (6) is cyclically connected to a cooling water evaporative cooling device (8) through a cooling water circulation system.

2. A closed type water chiller with a composite cold natural cooling source according to claim 1, characterized in that: The cooling water evaporative cooling device (8) is a water-cooled filler or a wet curtain. The cooling water circulation system comprises a cooling water circulation pipeline (71), a cooling water circulation power component (72), a cooling water tank (73), a cooling water inlet (74), a cooling water distributor (75) and a cooling water outlet (76). The cooling water circulation pipeline (71) is connected to the cooling water inlet (74) and the cooling water outlet (76) respectively, and is connected to the cooling water evaporative cooling device (8) to form a circulation connection. A cooling water distributor (75) is provided below the cooling water inlet (74). A cooling water evaporative cooling device (8) is provided below the cooling water distributor (75). A cooling water tank (73) is provided below the cooling water evaporative cooling device (8). A cooling water tank (73) is provided on the cooling water outlet (76). The cooling water circulation pipeline (71) is provided with a cooling water circulation power component (72).

3. A closed type water chiller with a composite cold natural cooling source according to claim 2, characterized in that: The spray system comprises a spray circulation pipeline (21), a spray circulation power component (22), a spray water tank (23), a spray head (24) and a spray water distributor (25).

4. A closed type water chiller with a composite cold natural cooling source according to claim 3, characterized in that: The spray circulation power component (22) and the cooling water circulation power component (72) are both water pumps.

5. A closed type water chiller with a composite cold natural cooling source according to any one of claims 1 to 4, characterized in that: The air-cooling heat exchange tube (6) is a finned heat exchange tube.

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