Air conditioning unit for container data center based on solar power generation and evaporative cooling

Abstract

This invention discloses an air conditioning unit for a containerized data center based on solar power generation and evaporative cooling. It includes a cooling integration box fixedly installed on one side of the containerized data center. The cooling integration box houses a mechanical refrigeration chiller and an indirect evaporative cooling chiller. Terminal precision air conditioners are installed within the containerized data center. The indirect evaporative cooling chiller is connected to plate heat exchanger b and plate heat exchanger a via pipes, forming a circulation loop. The terminal precision air conditioner is connected to plate heat exchanger b via pipes, forming a circulation loop. The mechanical refrigeration chiller is also connected to plate heat exchanger b via pipes, forming a circulation loop. A solar panel is installed on the top of the cooling integration box, and the solar panel is connected to the indirect evaporative cooling chiller and the mechanical refrigeration chiller via electrical wires. This invention utilizes a containerized integrated data center and chiller units, effectively saving floor space and reducing investment in pump room construction.

Description

Technical Field

[0001] The invention belongs to the technical field of air-conditioning equipment, and relates to an air-conditioning unit for a container data center based on solar power generation and evaporative cooling. Background Art

[0002] In recent years, the number of data centers has been on an upward trend. Under the requirements of the national and local governments, the requirements for PUE in data centers are also constantly increasing. In order to build green and energy-saving data centers, more and more designers choose to use evaporative cooling technology as the main cooling source for data centers to cool them down, and provide energy-saving and efficient temperature control systems to help data centers operate sustainably, efficiently and with low carbon. However, during operation, the evaporative cooling system does not completely abandon the traditional mechanical refrigeration system to operate independently. In most areas, the two need to be combined to achieve greater safety and maximum energy saving requirements. At present, the joint operation of evaporative cooling chilled water systems and traditional mechanical refrigeration systems has been favored by more and more data centers. However, there are also times when it is impossible to build a pump room due to limited space conditions and the construction cost of the pump room is high. In addition, there is also power consumption of water pumps and fans, which makes it impossible to better implement the green, low-carbon, energy-saving and environmental protection concepts and help achieve carbon peak and carbon neutrality. Summary of the invention

[0003] The purpose of the present invention is to provide an air conditioning unit for a container data center based on solar power generation and evaporative cooling. The use of a container integrated data center and a chiller can effectively save floor space and reduce the investment in building a pump room.

[0004] The technical solution adopted by the present invention is an air-conditioning unit for a container data center based on solar power generation and evaporative cooling, including a cooling integrated box fixedly arranged on one side of the container data center, a mechanical refrigeration chiller and an indirect evaporative cooling chiller arranged in the cooling integrated box, a terminal precision air conditioner arranged in the container data center, the indirect evaporative cooling chiller is connected to a plate heat exchanger b through a pipeline to form a circulation loop, the terminal precision air conditioner is connected to the plate heat exchanger b through a pipeline to form a circulation loop, the mechanical refrigeration chiller is connected to the plate heat exchanger b through a pipeline to form a circulation loop, the indirect evaporative cooling chiller is also connected to the plate heat exchanger a through a pipeline to form a circulation loop, a solar power generation panel is arranged on the top of the cooling integrated box, and the solar power generation panel is connected to the indirect evaporative cooling chiller and the mechanical refrigeration chiller through electric wires.

[0005] The present invention is also characterized in that

[0006] The indirect evaporative cooling chiller comprises a unit shell, a direct cooling unit is arranged in the middle of the unit shell, and the indirect evaporative cooling units are symmetrically arranged on both sides of the direct evaporative cooling unit. The direct cooling unit comprises a filler a, a water distribution device a, an exhaust fan a and an exhaust port arranged on the top of the unit shell are arranged from bottom to top above the filler a, a water tank a is arranged below the filler a, the water tank a is connected to the plate heat exchanger a and the plate heat exchanger b through the water supply pipe a, and the water distribution device a is connected to the plate heat exchanger a and the plate heat exchanger b through the return pipe a.

[0007] The exhaust fan a is connected to the solar power generation panel through electric wires, and a water pump a is arranged on the water return pipe a, and the water pump a is connected to the solar power generation panel through electric wires.

[0008] The indirect evaporative cooling unit includes a riser indirect evaporative cooler arranged at a position corresponding to the filler a and the water tank a, a water tank b is arranged below the riser indirect evaporative cooler, and filler b, a water distribution device b, an indirect fan, and a secondary air outlet are arranged above the riser indirect evaporative cooler from bottom to top. The water tank b and the water distribution device b are connected by a pipeline, and also include a primary air inlet arranged on the corresponding two side walls of the unit shell corresponding to the riser indirect evaporative cooler and a secondary air inlet arranged on the side walls of the unit shell at a position between the riser indirect evaporative cooler and the water tank b.

[0009] The end of the return pipe a away from the water distribution device a is divided into pipe G1 and pipe G2, and pipe G1 and pipe G2 are respectively connected to the plate heat exchanger a and the plate heat exchanger b. The end of the water supply pipe a away from the water tank a is divided into pipe G3 and pipe G4, and pipe G3 and pipe G4 are respectively connected to the plate heat exchanger a and the plate heat exchanger b. The plate heat exchanger a is also connected to the mechanical refrigeration chiller through pipe G5 and pipe G6, and the plate heat exchanger b is also connected to pipe G2 and pipe G4 through pipe G7 and pipe G8.

[0010] Pipeline G4, pipeline G6 and pipeline G8 are respectively provided with valve b, valve c and valve a.

[0011] There are two groups of terminal precision air conditioners. One group of terminal precision air conditioners is connected to plate heat exchanger b through return pipe b and supply pipe b respectively. Return pipe c and supply pipe c are also connected to return pipe b and supply pipe c respectively. The other ends of return pipe c and supply pipe c are connected to another group of terminal precision air conditioners.

[0012] The return pipe b and the return pipe c are respectively provided with a water pump b and a water pump c.

[0013] Water pump b and water pump c are connected to the solar panels through electric wires respectively.

[0014] The beneficial effects of the present invention are:

[0015] The present invention constructs the data center as a whole in a container body, which can effectively save construction costs, and has a short construction period, high efficiency, and can be adjusted according to actual needs, which is convenient and fast;

[0016] The present invention integrates the indirect evaporative cooling chiller and the traditional mechanical refrigeration chiller into a cooling integrated box, which can effectively save floor space, reduce the investment in building a pump room, save costs, and reduce initial investment;

[0017] The present invention adopts multiple operation modes to jointly operate, ensuring efficient and energy-saving operation throughout the year, making maximum use of natural cooling sources, reducing energy consumption, reducing the overall PUE of the computer room, being efficient and energy-saving, and being green and environmentally friendly;

[0018] The present invention utilizes an indirect evaporative cooling chiller to replace a conventional cooling tower during summer operation, and its outlet water temperature is lower than that of a conventional cooling tower, thereby taking away more condensation heat of the mechanical refrigeration chiller, thereby reducing the energy consumption of its compressor, thereby saving energy and reducing consumption, and saving electricity costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of an air conditioning unit for a container data center based on solar power generation and evaporative cooling according to the present invention;

[0020] Figure 2 It is a side view of an air conditioning unit for a container data center based on solar power generation and evaporative cooling according to the present invention;

[0021] Figure 3 yes Figure 2 A partial enlarged view of

[0022] Figure 4 It is a top view of an air conditioning unit for a container data center based on solar power generation and evaporative cooling according to the present invention.

[0023] In the figure, 1. container data center, 2. cabinet, 3. mechanical refrigeration chiller, 4. cooling integrated box, 5. indirect evaporative cooling chiller, 6. return pipe a, 7. water pump a, 8. water supply pipe a, 9. return pipe b, 10. water supply pipe b, 11. water pump b, 12. water pump c, 13. terminal precision air conditioner, 14. water supply pipe c, 15. return pipe c, 16. solar panel, 17. wire, 18. valve a, 19. valve b, 20. valve c, 21. plate heat exchanger a, 22. plate heat exchanger b;

[0024] 5-1. Direct refrigeration cooling unit, 5-2. Indirect evaporative cooling unit, 5-3. Filler a, 5-4. Water distribution device a, 5-5. Exhaust fan a, 5-6. Water tank a, 5-7. Riser indirect evaporative cooler, 5-8. Water tank b, 5-9. Filler b, 5-10. Water distribution device b, 5-11. Indirect fan. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The present invention is based on solar power generation and evaporative cooling container data center air conditioning unit, the structure of which is as follows Figure 1-4 As shown, it includes a cooling integrated box 4 fixedly arranged on one side of the container data center 1, and a mechanical refrigeration chiller 3 and an indirect evaporative cooling chiller 5 are arranged in the cooling integrated box 4. A terminal precision air conditioner 13 is arranged in the container data center 1. The indirect evaporative cooling chiller 5 is connected to the plate heat exchanger b22 through a pipeline to form a circulation loop, the terminal precision air conditioner 13 is connected to the plate heat exchanger b22 through a pipeline to form a circulation loop, the mechanical refrigeration chiller 3 is connected to the plate heat exchanger b22 through a pipeline to form a circulation loop, the indirect evaporative cooling chiller 5 is also connected to the plate heat exchanger a21 through a pipeline to form a circulation loop, and a solar power generation panel 16 is arranged on the top of the cooling integrated box 4, and the solar power generation panel 16 is connected to the indirect evaporative cooling chiller 5 and the mechanical refrigeration chiller 3 through an electric wire 17.

[0027] The container data center 1 includes a plurality of cabinets 2 installed in a container.

[0028] The indirect evaporative cooling chiller 5 includes a unit shell, a direct cooling unit 5-1 is arranged in the middle of the unit shell, and indirect evaporative cooling units 5-2 are symmetrically arranged on both sides of the direct evaporative cooling unit. The direct cooling unit 5-1 includes a filler a5-3, and a water distribution device a5-4, an exhaust fan a5-5 and an exhaust port arranged on the top of the unit shell are arranged above the filler a5-3 from bottom to top. A water tank a5-6 is arranged below the filler a5-3, and the water tank a5-6 is connected to the plate heat exchanger a21 and the plate heat exchanger b22 respectively through a water supply pipe a8, and the water distribution device a5-4 is connected to the plate heat exchanger a21 and the plate heat exchanger b22 respectively through a return pipe a6.

[0029] The exhaust fan a5 - 5 is connected to the solar power generation panel 16 via an electric wire 17 . A water pump a7 is provided on the return pipe a6 . The water pump a7 is connected to the solar power generation panel 16 via an electric wire 17 .

[0030] The indirect evaporative cooling unit 5-2 includes a riser indirect evaporative cooler 5-7 arranged at a position corresponding to the filler a5-3 and the water tank a5-6, a water tank b5-8 is arranged below the riser indirect evaporative cooler 5-7, and a filler b5-9, a water distribution device b5-10, an indirect fan 5-11, and a secondary air outlet are arranged above the riser indirect evaporative cooler 5-7 from bottom to top. The water tank b5-8 and the water distribution device b5-10 are connected by a pipeline, and also include a primary air inlet arranged on the corresponding two side walls of the unit shell corresponding to the riser indirect evaporative cooler 5-7 and a secondary air inlet arranged on the side walls of the unit shell at a position between the riser indirect evaporative cooler 5-7 and the water tank b5-8.

[0031] The end of the return pipe a6 away from the water distribution device a5-4 is divided into pipe G1 and pipe G2, and pipe G1 and pipe G2 are respectively connected to the plate heat exchanger a21 and the plate heat exchanger b22. The end of the water supply pipe a8 away from the water tank a5-6 is divided into pipe G3 and pipe G4, and pipe G3 and pipe G4 are respectively connected to the plate heat exchanger a21 and the plate heat exchanger b22. The plate heat exchanger a21 is also connected to the mechanical refrigeration chiller 3 through pipe G5 and pipe G6, and the plate heat exchanger b22 is also connected to pipe G2 and pipe G4 through pipe G7 and pipe G8.

[0032] The pipeline G4, the pipeline G6 and the pipeline G8 are respectively provided with a valve b19, a valve c20 and a valve a18.

[0033] There are two groups of terminal precision air conditioners 13. One group of terminal precision air conditioners 13 is connected to the plate heat exchanger b22 through the return pipe b9 and the supply pipe b10. The return pipe b9 and the supply pipe b10 are also connected to the return pipe c15 and the supply pipe c14 respectively. The other ends of the return pipe c15 and the supply pipe c14 are connected to another group of terminal precision air conditioners 13.

[0034] The return pipe b9 and the return pipe c15 are provided with a water pump b11 and a water pump c12 respectively.

[0035] The water pump b11 and the water pump c12 are connected to the solar power generation panel 16 via electric wires 17 , respectively.

[0036] The working principle of the present invention is:

[0037] Winter and transition season operation mode: valves 18 and 20 are closed, and valve 19 is opened;

[0038] The electric energy converted by the solar panel 16 is transmitted to the indirect evaporative cooling chiller 5 through the wire 17, driving the electrical equipment in the indirect evaporative cooling chiller 5 to operate and produce high-temperature cold water which enters the plate heat exchanger b22 through the water supply pipe a8, exchanges heat with the water in the return pipe b9 and the return pipe c15 in the plate heat exchanger b22, and the water after absorbing heat returns to the indirect evaporative cooling chiller 5 through the return pipe a6 under the action of the water pump a7, and the water cooled after heat exchange in the plate heat exchanger b22 is sent to the terminal precision air conditioner 13 through the water supply pipe b10 and the water supply pipe c14;

[0039] Summer operation mode: valves 18 and 20 are open, and valve 19 is closed;

[0040] The low-temperature cold water produced by the mechanical refrigeration chiller 3 enters the plate heat exchanger b22 for heat exchange, and returns to the mechanical refrigeration chiller 3 after absorbing heat; the water cooled down after heat exchange in the plate heat exchanger b22 is sent to the terminal precision air conditioner 13 through the water supply pipes b10 and c14; the electric energy converted by the solar power generation panel 16 is transmitted to the indirect evaporative cooling chiller 5 through the wire 17, driving the electrical equipment in the indirect evaporative cooling chiller 5 to operate and produce high-temperature cold water, which enters the plate heat exchanger a21 through the water supply pipe a8, and exchanges heat with the water that absorbs the condensation heat of the mechanical refrigeration chiller 3 in the plate heat exchanger a21. The water after absorbing heat returns to the indirect evaporative cooling chiller 5 through the return pipe a6 under the action of the water pump a7, and the cycle repeats.

Claims

1. An air conditioning unit for a container data center based on solar power generation and evaporative cooling, characterized in that: The invention comprises a cooling integrated box (4) fixedly arranged on one side of a container data center (1), wherein a mechanical refrigeration chiller (3) and an indirect evaporative cooling chiller (5) are arranged in the cooling integrated box (4), wherein a terminal precision air conditioner (13) is arranged in the container data center (1), wherein the indirect evaporative cooling chiller (5) is connected to a plate heat exchanger b (22) via a pipeline to form a circulation loop, wherein the terminal precision air conditioner (13) is connected to a plate heat exchanger b (22) via a pipeline to form a circulation loop, wherein the mechanical refrigeration chiller (3) is connected to a plate heat exchanger b (22) via a pipeline to form a circulation loop, wherein the indirect evaporative cooling chiller (5) is also connected to a plate heat exchanger a (21) via a pipeline to form a circulation loop, wherein a solar power generation panel (16) is arranged on the top of the cooling integrated box (4), wherein the solar power generation panel (16) is connected to the indirect evaporative cooling chiller (5) and the mechanical refrigeration chiller (3) via an electric wire (17); The indirect evaporative cooling chiller (5) comprises a unit shell, a direct evaporative cooling unit (5-1) is arranged in the middle of the unit shell, indirect evaporative cooling units (5-2) are symmetrically arranged on both sides of the direct evaporative cooling unit, the direct evaporative cooling unit (5-1) comprises a filler a (5-3), a water distribution device a (5-4), an exhaust fan a (5-5) and an exhaust port arranged on the top of the unit shell are arranged in sequence from bottom to top above the filler a (5-3), a water tank a (5-6) is arranged below the filler a (5-3), the water tank a (5-6) is connected to the plate heat exchanger a (21) and the plate heat exchanger b (22) respectively through a water supply pipe a (8), and the water distribution device a (5-4) is connected to the plate heat exchanger a (21) and the plate heat exchanger b (22) respectively through a return pipe a (6); The exhaust fan a (5-5) is connected to the solar power generation panel (16) via an electric wire (17); a water pump a (7) is provided on the water return pipe a (6); and the water pump a (7) is connected to the solar power generation panel (16) via an electric wire (17); The indirect evaporative cooling unit (5-2) comprises a riser indirect evaporative cooler (5-7) arranged at a position corresponding to a filler a (5-3) and a water tank a (5-6); a water tank b (5-8) is arranged below the riser indirect evaporative cooler (5-7); a filler b (5-9), a water distribution device b (5-10), an indirect fan (5-11), and a secondary air outlet are arranged above the riser indirect evaporative cooler (5-7) in order from bottom to top; the water tank b (5-8) and the water distribution device b (5-10) are connected via a pipeline; and the unit further comprises a primary air inlet arranged on the corresponding two side walls of the unit housing corresponding to the riser indirect evaporative cooler (5-7) and a secondary air inlet arranged on the side walls of the unit housing corresponding to the position between the riser indirect evaporative cooler (5-7) and the water tank b (5-8); The end of the return pipe a (6) away from the water distribution device a (5-4) is divided into a pipe G1 and a pipe G2, and the pipe G1 and the pipe G2 are respectively connected to the plate heat exchanger a (21) and the plate heat exchanger b (22); the end of the water supply pipe a (8) away from the water tank a (5-6) is divided into a pipe G3 and a pipe G4, and the pipe G3 and the pipe G4 are respectively connected to the plate heat exchanger a (21) and the plate heat exchanger b (22); the plate heat exchanger a (21) is also connected to the mechanical refrigeration chiller (3) through a pipe G5 and a pipe G6, and the mechanical refrigeration chiller (3) is also connected to the pipe G2 and the pipe G4 through a pipe G7 and a pipe G8; The terminal precision air conditioner (13) is provided with two groups, one group of the terminal precision air conditioner (13) is connected to the plate heat exchanger b (22) through a return pipe b (9) and a water supply pipe b (10), respectively, the return pipe b (9) and the water supply pipe b (10) are also connected to a return pipe c (15) and a water supply pipe c (14), respectively, and the other ends of the return pipe c (15) and the water supply pipe c (14) are connected to another group of the terminal precision air conditioner (13).

2. The air conditioning unit for container data center based on solar power generation and evaporative cooling according to claim 1 is characterized in that: The pipeline G4, pipeline G6 and pipeline G8 are respectively provided with valve b (19), valve c (20) and valve a (18).

3. The air conditioning unit for container data center based on solar power generation and evaporative cooling according to claim 2 is characterized in that: The water return pipe b (9) and the water return pipe c (15) are provided with a water pump b (11) and a water pump c (12) respectively.

4. The air conditioning unit for container data center based on solar power generation and evaporative cooling according to claim 3 is characterized in that: The water pump b (11) and the water pump c (12) are respectively connected to the solar power generation panel (16) via electric wires (17).

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