CN210868551U

CN210868551U - Multi-channel indirect evaporation refrigerating device for year-round cooling of data center

Info

Publication number: CN210868551U
Application number: CN201921749787.6U
Authority: CN
Inventors: 于向阳
Original assignee: XINJIANG GREEN REFRESHING ANGEL AIR ENVIRONMENT CO Ltd
Current assignee: XINJIANG GREEN REFRESHING ANGEL AIR ENVIRONMENT CO Ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-06-26
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a multichannel indirect evaporation refrigerating plant of data center year-round cooling, quick-witted incasement is setting up first blast blower, water separator, first spray set, the second spray set, filler and water tank, machine case sets up the plenum, machine case is setting up second surface type heat exchanger, the plenum wall on its upper portion is setting up first on-off sealing device or portable heat preservation sealing door, first surface type heat exchanger is being installed to the plenum wall, the secondary refrigerant of system is anti-icing fluid, the water tank outlet pipe passes through the water pump and is being connected second surface type heat exchanger, second spray set is being connected to its outlet pipe, first spray set is being connected to the unit wet return, the water tank is being connected to the unit delivery pipe. The utility model discloses it is rational in infrastructure, utilize outdoor free cold source, reduce the energy consumption, through switching the switching of opening and close sealing device and switch inlet air channel, do not increase the resistance when making the unit operation in winter and summer, guarantee the unit amount of wind, guarantee the antifreeze who uses winter, guarantee the security.

Description

Multi-channel indirect evaporation refrigerating device for year-round cooling of data center

Technical Field

The utility model belongs to the air treatment equipment in heating and ventilating air conditioning field, especially a multichannel indirect evaporation refrigerating plant of data center year round cooling.

Background

In recent years, with the development of the information industry, more and more data centers have been built nationwide. Because the heating density of the machine room is very high, the power consumption of an air conditioning system for cooling the machine room accounts for 30% -40% of the power consumption of the machine cabinet in the machine room, the power supply power of a large machine room is equivalent to a medium-scale thermal power plant, and the power consumption is close to that of a million-population city. According to statistics, the energy consumption of the data center in China already accounts for 1% of national power consumption, and the reduction of the power consumption of a large-scale data center becomes an urgent need for energy conservation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multichannel indirect evaporation refrigerating plant of data center cooling all the year round, its is rational in infrastructure, can utilize outdoor free cold source, reduces the energy consumption, opens and close sealing device through the switching and switches inlet air duct, does not increase the resistance when making winter and summer unit move, guarantees the unit amount of wind, guarantees the antifreeze that uses winter, guarantees the security.

The purpose of the utility model is realized like this: a multi-channel indirect evaporation refrigerating device for year-round cooling of a data center comprises a direct evaporation refrigeration cooling device, a first exhaust fan, a steam-water separation device, a first spray device, a second spray device, a filler and a water tank are arranged in a cooling device cabinet, an air chamber is arranged on the air inlet side of the cabinet, a second surface heat exchanger obliquely crossing the air chamber is arranged on the upper portion of the air inlet of the cabinet, a first opening and closing sealing device or a movable heat preservation sealing door is arranged on a first air inlet of the air chamber wall on the upper portion of the air inlet, the first surface heat exchanger is arranged on the second air inlet arranged on the air chamber wall in a matched mode, a liquid inlet and a liquid outlet of the first surface heat exchanger are respectively communicated with a liquid return pipe and a liquid supply pipe of a user side, a secondary refrigerant of the system is antifreeze liquid, and an outlet pipe of the water tank is connected with the second surface heat exchanger through a water, the outlet pipe is connected with the second spraying device, the unit water return pipe is connected with the first spraying device, and the unit water supply pipe is connected with the water tank.

The utility model discloses it is rational in infrastructure, utilized outdoor free cold source, reduce the energy consumption, switch inlet air channel through switching on/off sealing device, do not increase the resistance when making the unit move in winter and summer, guaranteed the unit amount of wind, guaranteed the antifreeze who uses winter, guaranteed the security.

Drawings

Next, it will be right to combine the attached drawing to describe the utility model, fig. 1 is the utility model discloses embodiment 1 structural schematic diagram, fig. 2 is the utility model discloses embodiment 2 structural schematic diagram, fig. 3 is the utility model discloses embodiment 3 structural schematic diagram, fig. 4 is the utility model discloses embodiment 4 structural schematic diagram, fig. 5 is the utility model discloses embodiment 5 structural schematic diagram, fig. 6 is the utility model discloses embodiment 6 structural schematic diagram, fig. 7 is the utility model discloses embodiment 7 structural schematic diagram, fig. 8 is the utility model discloses embodiment 8 structural schematic diagram, fig. 9 is the utility model discloses embodiment 9 structural schematic diagram, fig. 10 is cold-storage tank embodiment 10 structural schematic diagram, fig. 11 is the utility model embodiment 11 structural schematic diagram.

Detailed Description

A multi-channel indirect evaporation refrigerating device for year-round cooling of a data center comprises a direct evaporation refrigeration cooling device, a cooling device cabinet provided with an air outlet at the upper part is internally provided with a first exhaust fan 1, a steam-water separation device 2, a first spray device 3, a second spray device 4, a filler 5 and a water tank 6, an air chamber 7 is arranged at the air inlet side of the cabinet, a second surface type heat exchanger 8 obliquely crossing the air chamber 7 is arranged at the upper part of the air inlet of the cabinet, a first opening and closing sealing device 9 or a movable heat preservation sealing door 21 is arranged at the first air inlet of the wall of the air chamber at the upper part, a first surface type heat exchanger 10 is arranged at the second air inlet on the wall of the air chamber in a matching way, a liquid inlet and a liquid outlet of the first surface type heat exchanger 10 are respectively communicated with a liquid return pipe and a liquid supply pipe of a user side, and a refrigerating medium of the system is antifreeze liquid, an outlet pipe of the water tank 6 is connected with the second surface type heat exchanger 8 through a water pump 11, an outlet pipe of the water tank is connected with the second spraying device 4, a unit water return pipe 12 is connected with the first spraying device 3, and a unit water supply pipe 14 is connected with the water tank 6. As shown in fig. 1, a first surface type heat exchanger 10 having a liquid inlet and a liquid outlet is disposed on a second air inlet disposed on the air chamber wall below a second surface type heat exchanger 8, vertical symmetrical slide rails 20 are disposed on the air chamber wall at two sides of the first air inlet and the second air inlet, and a movable heat-insulating sealing door 21 is engaged with the symmetrical slide rails 20 to control the opening and closing of the first air inlet and the second air inlet. As shown in fig. 2, a first surface heat exchanger 10 is fittingly installed on a second air inlet provided on the wall of the air duct below the second surface heat exchanger 8, and a second opening and closing sealing device 13 is provided on the air inlet side of the first surface heat exchanger 10 having a liquid inlet and a liquid outlet. As shown in fig. 1, summer operation mode: the movable heat-insulating sealing door 21 is moved to the lower side (the position of the first surface heat exchanger 10). Fresh air enters the second surface type heat exchanger 8 through the first air inlet, exchanges heat with the second surface type heat exchanger 8, enters the filler 5, exchanges heat and humidity with aquatic products sprayed by the first spraying device 3 and the second spraying device 4 from bottom to top, and is discharged by the first exhaust fan 1; the unit backwater enters the first spraying device 3 from the backwater pipe 12, enters the filler 5 through the first spraying device 3, flows down to the water tank 6 and enters the water supply pipe 14; the water supply part of the unit enters a second surface type heat exchanger 8 through a water pump 11, the outlet water after heat exchange enters a second spraying device 4, enters a filler 5 through the second spraying device 4, flows downwards to a water tank 6 and enters a water supply pipe 14. Winter operation mode: the movable heat-insulating sealing door 21 is moved to the upper side (at the position of the second surface heat exchanger 8). Fresh air enters the first surface type heat exchanger 10 through the second air inlet, exchanges heat with the first surface type heat exchanger 10, enters the filler 5 and is discharged by the first exhaust fan 1; the first surface type heat exchanger 10 is provided with a liquid inlet and a liquid outlet, the secondary refrigerant circulating in the first surface type heat exchanger 10 is antifreeze, and antifreeze with different concentrations is configured according to the extreme minimum temperature of different areas, so that the antifreeze during winter operation is ensured. Transition season operation mode: the movable heat-insulating sealing door 21 is moved to the lower side (the position of the first surface heat exchanger 10). Fresh air enters the first surface type heat exchanger 10 through the second air inlet, exchanges heat with the first surface type heat exchanger 10, enters the filler 5, exchanges heat and humidity with aquatic products sprayed out of the first spraying device 3 from bottom to top, and is then discharged by the first exhaust fan 1; the unit return water enters the first spraying device 3 from the return pipe 12, enters the filler 5 through the first spraying device 3, flows downwards to the water tank 6, and enters the water supply pipe 14. As shown in fig. 2, summer operation mode: the first opening and closing sealing device 9 is opened, and the second opening and closing sealing device 13 is closed. Fresh air enters a second surface type heat exchanger 8 through a first opening and closing sealing device 9, exchanges heat with the second surface type heat exchanger 8, enters a filler 5, exchanges heat and humidity with aquatic products sprayed by a first spraying device 3 and a second spraying device 4 from bottom to top, and is discharged by a first exhaust fan 1; the unit backwater enters the first spraying device 3 from the backwater pipe 12, enters the filler 5 through the first spraying device 3, flows down to the water tank 6 and enters the water supply pipe 14; the water supply part of the unit enters a second surface type heat exchanger 8 through a water pump 11, the outlet water after heat exchange enters a second spraying device 4, enters a filler 5 through the second spraying device 4, flows downwards to a water tank 6 and enters a water supply pipe 14. Winter operation mode: the first opening and closing sealing device 9 is closed, and the second opening and closing sealing device 13 is opened. Fresh air enters the first surface type heat exchanger 10 through the second opening and closing sealing device 13, exchanges heat with the first surface type heat exchanger 10, enters the filler 5 and is discharged by the first exhaust fan 1; the first surface type heat exchanger 10 is provided with a liquid inlet and a liquid outlet, the secondary refrigerant circulating in the first surface type heat exchanger 10 is antifreeze, and antifreeze with different concentrations is configured according to the extreme minimum temperature of different areas, so that the antifreeze during winter operation is ensured. Transition season operation mode: the first opening and closing sealing device 9 is closed, and the second opening and closing sealing device 13 is opened. Fresh air enters the first surface type heat exchanger 10 through the second opening and closing sealing device 13, exchanges heat with the first surface type heat exchanger 10, enters the filler 5, exchanges heat and humidity with aquatic products sprayed by the first spraying device 3 from bottom to top, and is discharged by the first exhaust fan 1; the unit return water enters the first spraying device 3 from the return pipe 12, enters the filler 5 through the first spraying device 3, flows downwards to the water tank 6, and enters the water supply pipe 14.

As shown in fig. 3, a second air inlet is arranged on the wall of the air chamber above the first open/close sealing device 9, a first surface heat exchanger 10 with a liquid inlet and a liquid outlet is arranged on the second air inlet in a matching way, the upper end of the air chamber 7 is communicated with the exhaust fan box through a communication port, and a second open/close sealing device 13 is arranged on the communication port in a matching way. Summer operation mode: the first opening and closing sealing device 9 is opened, and the second opening and closing sealing device 13 is closed. Fresh air enters a second surface type heat exchanger 8 through a first opening and closing sealing device 9, exchanges heat with the second surface type heat exchanger 8, enters a filler 5, exchanges heat and humidity with aquatic products sprayed by a first spraying device 3 and a second spraying device 4 from bottom to top, and is discharged by a first exhaust fan 1; the unit backwater enters the first spraying device 3 from the backwater pipe 12, enters the filler 5 through the first spraying device 3, flows down to the water tank 6 and enters the water supply pipe 14; the water supply part of the unit enters a second surface type heat exchanger 8 through a water pump 11, the outlet water after heat exchange enters a second spraying device 4, enters a filler 5 through the second spraying device 4, flows downwards to a water tank 6 and enters a water supply pipe 14. Winter operation mode: the first opening and closing sealing device 9 is closed, and the second opening and closing sealing device 13 is opened. Fresh air enters the first surface type heat exchanger 10 through the second air inlet, exchanges heat with the first surface type heat exchanger 10, and is discharged by the first exhaust fan 1; the first surface type heat exchanger 10 is provided with a liquid inlet and a liquid outlet, the secondary refrigerant circulating in the first surface type heat exchanger 10 is antifreeze, and antifreeze with different concentrations is configured according to the extreme minimum temperature of different areas, so that the antifreeze during winter operation is ensured. Transition season operation mode: the first opening and closing sealing device 9 and the second opening and closing sealing device 13 are closed. Fresh air passes through the second air inlet first surface type heat exchanger 10, exchanges heat with the first surface type heat exchanger 10, enters the filler 5 through the second surface type heat exchanger 8, exchanges heat and humidity with aquatic products sprayed out of the first spraying device 3 from bottom to top, and is then discharged by the first exhaust fan 1; the unit return water enters the first spraying device 3 from the return pipe 12, enters the filler 5 through the first spraying device 3, flows downwards to the water tank 6, and enters the water supply pipe 14. In the transition season operation mode, the fresh air exchanges heat with the first surface type heat exchanger 10, so that the temperature of the fresh air is increased, and the second surface type heat exchanger 8 is protected; the opening and closing sealing device is an air valve or a heat insulation sealing door or a hinged heat insulation sealing door; when the second opening and closing sealing device 13 is a heat-insulating sealing door, the spraying device and other parts can be overhauled through the second opening and closing sealing device 13.

As shown in fig. 4, a drain pan 22 is provided below the packing 5, and the drain pan 22 is connected to the water tank 6 located below the drain pan 22 through a drain hole provided therein. Summer operation mode: the first opening and closing sealing device 9 is opened, and the second opening and closing sealing device 13 is closed. Fresh air enters a second surface type heat exchanger 8 through a first opening and closing sealing device 9, exchanges heat with the second surface type heat exchanger 8, enters a filler 5, exchanges heat and humidity with aquatic products sprayed by a first spraying device 3 and a second spraying device 4 from bottom to top, and is discharged by a first exhaust fan 1; the unit backwater enters the first spraying device 3 from the backwater pipe 12, enters the filler 5 through the first spraying device 3, flows down to the water receiving tray 22 and then enters the water tank 6; the water outlet of the water tank enters the second surface type heat exchanger 8 through the water pump 11, the water after heat exchange enters the second spraying device 4, enters the filler 5 through the second spraying device 4, flows downwards to the water receiving disc 22, and then enters the water tank 6. Winter operation mode: the first opening and closing sealing device 9 is closed, and the second opening and closing sealing device 13 is opened. Fresh air enters the first surface type heat exchanger 10 through the second air inlet, exchanges heat with the first surface type heat exchanger 10, and is discharged by the first exhaust fan 1; the first surface type heat exchanger 10 is provided with a liquid inlet and a liquid outlet, the secondary refrigerant circulating in the first surface type heat exchanger 10 is antifreeze, and antifreeze with different concentrations is configured according to the extreme minimum temperature of different areas, so that the antifreeze during winter operation is ensured. Transition season operation mode: the first opening and closing sealing device 9 and the second opening and closing sealing device 13 are closed. Fresh air passes through the second air inlet first surface type heat exchanger 10, exchanges heat with the first surface type heat exchanger 10, enters the filler 5 through the second surface type heat exchanger 8, exchanges heat and humidity with aquatic products sprayed out of the first spraying device 3 from bottom to top, and is then discharged by the first exhaust fan 1; the unit return water enters the first spraying device 3 from the return pipe 12, enters the filler 5 through the first spraying device 3, flows downwards to the water receiving disc 22, and then enters the water tank 6. A water receiving tray 22 is arranged above the water tank, the size of the water tank 6 is reduced, and the operation load is reduced; the arrangement of the water receiving tray 22 is equal to the reservation of a water storage space, and when the unit is shut down, the water tank 6 is prevented from overflowing; the size of the water tank 6 is reduced, so that the water tank 6 is simple to process and install, few in seam, and the safety of the unit is improved.

As shown in fig. 5, the exhaust fan box is provided with an access opening 15. Summer operation mode: the first opening and closing sealing device 9 is opened, and the second opening and closing sealing device 13 is closed. Fresh air enters a second surface type heat exchanger 8 through a first opening and closing sealing device 9, exchanges heat with the second surface type heat exchanger 8, enters a filler 5, exchanges heat and humidity with aquatic products sprayed by a first spraying device 3 and a second spraying device 4 from bottom to top, and is discharged by a first exhaust fan 1; the unit backwater enters the first spraying device 3 from the backwater pipe 12, enters the filler 5 through the first spraying device 3, flows down to the water tank 6 and enters the water supply pipe 14; the water supply part of the unit enters a second surface type heat exchanger 8 through a water pump 11, the outlet water after heat exchange enters a second spraying device 4, enters a filler 5 through the second spraying device 4, flows downwards to a water tank 6 and enters a water supply pipe 14. Winter operation mode: the first opening and closing sealing device 9 is closed, and the second opening and closing sealing device 13 is opened. Fresh air enters the first surface type heat exchanger 10 through the second air inlet, exchanges heat with the first surface type heat exchanger 10, and is discharged by the first exhaust fan 1; the first surface type heat exchanger 10 is provided with a liquid inlet and a liquid outlet, the secondary refrigerant circulating in the first surface type heat exchanger 10 is antifreeze, and antifreeze with different concentrations is configured according to the extreme minimum temperature of different areas, so that the antifreeze during winter operation is ensured. Transition season operation mode: the first and second means 13 are closed. Fresh air passes through the second air inlet first surface type heat exchanger 10, exchanges heat with the first surface type heat exchanger 10, enters the filler 5 through the second surface type heat exchanger 8, exchanges heat and humidity with aquatic products sprayed out of the first spraying device 3 from bottom to top, and is then discharged by the first exhaust fan 1; the unit return water enters the first spraying device 3 from the return pipe 12, enters the filler 5 through the first spraying device 3, flows downwards to the water tank 6, and enters the water supply pipe 14. The first exhaust fan area is higher than a part to form a ladder shape, and a maintenance port can be arranged to facilitate maintenance of the first exhaust fan 1 and other parts.

As shown in fig. 6, a third air inlet is provided on the wall of the air duct below the second surface heat exchanger 8, and a third opening and closing sealing device 16 is provided on the air inlet. Summer operation mode: the first opening and closing sealing device 9 is opened, and the second opening and closing sealing device 13 and the third opening and closing sealing device 16 are closed. Summer operation mode: the first opening and closing sealing device 9 is opened, and the second opening and closing sealing device 13 and the third opening and closing sealing device 16 are closed. Fresh air enters a second surface type heat exchanger 8 through a first opening and closing sealing device 9, exchanges heat with the second surface type heat exchanger 8, enters a filler 5, exchanges heat and humidity with aquatic products sprayed by a first spraying device 3 and a second spraying device 4 from bottom to top, and is discharged by a first exhaust fan 1 and a second exhaust fan 17; the unit backwater enters the first spraying device 3 from the backwater pipe 12, enters the filler 5 through the first spraying device 3, flows down to the water tank 6 and enters the water supply pipe 14; the water supply part of the unit enters a second surface type heat exchanger 8 through a water pump 11, the outlet water after heat exchange enters a second spraying device 4, enters a filler 5 through the second spraying device 4, flows downwards to a water tank 6 and enters a water supply pipe 14. Winter operation mode: the first opening and closing sealing device 9 and the third opening and closing sealing device 16 are closed, and the second opening and closing sealing device 13 is opened. Fresh air enters the first surface type heat exchanger 10 through the second air inlet, exchanges heat with the first surface type heat exchanger 10, and is discharged by the first exhaust fan 1 and the second exhaust fan 17; the first surface type heat exchanger 10 is provided with a liquid inlet and a liquid outlet, the secondary refrigerant circulating in the first surface type heat exchanger 10 is antifreeze, and antifreeze with different concentrations is configured according to the extreme minimum temperature of different areas, so that the antifreeze during winter operation is ensured. Transition season operation mode: the first opening and closing sealing device 9, the second opening and closing sealing device 13 and the third opening and closing sealing device 16 are closed. Fresh air passes through the second air inlet first surface type heat exchanger 10, exchanges heat with the first surface type heat exchanger 10, enters the filler 5 through the second surface type heat exchanger 8, exchanges heat and humidity with aquatic products sprayed out of the first spraying device 3 from bottom to top, and is then discharged by the first exhaust fan 1 and the second exhaust fan 17; the unit return water enters the first spraying device 3 from the return pipe 12, enters the filler 5 through the first spraying device 3, flows downwards to the water tank 6, and enters the water supply pipe 14. Cooling tower operation mode: the third opening and closing sealing device 16 is opened, and the first opening and closing sealing device 9 and the second opening and closing sealing device 13 are closed. Fresh air enters the filler 5 through the third opening and closing sealing device 16, is subjected to heat and humidity exchange with water sprayed out of the first spraying device 3 from bottom to top, and is then discharged by the first exhaust fan 1 and the second exhaust fan 17; the unit backwater enters the first spraying device 3 from the backwater pipe 12, enters the filler 5 through the first spraying device 3, flows down to the water tank 6 and enters the water supply pipe 14; and a third opening and closing sealing device 16 is added, so that an operation mode is added for different outdoor climate environments, and different requirements are met.

As shown in fig. 7, two symmetrical air inlets are respectively arranged at two sides of the machine box, air chambers 7 which are symmetrical left and right are respectively arranged at the symmetrical air inlet sides of the machine box, the upper parts of two symmetrical first air inlets of the machine box are respectively provided with a second surface type heat exchanger 8 obliquely crossing the air chamber 7, a first surface type heat exchanger 10 is respectively arranged on a second air inlet arranged on the wall of the air chamber at the upper part of the first opening and closing sealing device 9 in a matching way, two side walls of the exhaust fan box are respectively communicated with the air chambers 7 at the left side and the right side through two symmetrical communicating ports, second opening and closing sealing devices 13 are respectively and cooperatively installed on the symmetrical communication ports, an outlet pipe of the water tank 6 is connected with inlets of the two second surface type heat exchangers 8 in parallel, the outlet pipe is connected with the second spraying device 4, the liquid return pipe is connected with the liquid inlets of the two first surface type heat exchangers 10 in parallel, and the liquid outlet is connected with the liquid supply pipe in parallel. Summer operation mode: the first opening and closing sealing device 9 is opened, and the second opening and closing sealing device 13 is closed. Fresh air enters a second surface type heat exchanger 8 through a first opening and closing sealing device 9, exchanges heat with the second surface type heat exchanger 8, enters a filler 5, exchanges heat and humidity with aquatic products sprayed by a first spraying device 3 and a second spraying device 4 from bottom to top, and is discharged by a first exhaust fan 1; the unit backwater enters the first spraying device 3 from the backwater pipe 12, enters the filler 5 through the first spraying device 3, flows down to the water tank 6 and enters the water supply pipe 14; the water supply part of the unit enters a second surface type heat exchanger 8 through a water pump 11, the outlet water after heat exchange enters a second spraying device 4, enters a filler 5 through the second spraying device 4, flows downwards to a water tank 6 and enters a water supply pipe 14. Winter operation mode: the first opening and closing sealing device 9 is closed, and the second opening and closing sealing device 13 is opened. Fresh air enters the first surface type heat exchanger 10 through the second air inlet, exchanges heat with the first surface type heat exchanger 10, and is discharged by the first exhaust fan 1; the first surface type heat exchanger 10 is provided with a liquid inlet and a liquid outlet, the secondary refrigerant circulating in the first surface type heat exchanger 10 is antifreeze, and antifreeze with different concentrations is configured according to the extreme minimum temperature of different areas, so that the antifreeze during winter operation is ensured. Transition season operation mode: the first opening and closing sealing device 9 and the second opening and closing sealing device 13 are closed. Fresh air passes through the second air inlet first surface type heat exchanger 10, exchanges heat with the first surface type heat exchanger 10, enters the filler 5 through the second surface type heat exchanger 8, exchanges heat and humidity with aquatic products sprayed out of the first spraying device 3 from bottom to top, and is then discharged by the first exhaust fan 1; the unit return water enters the first spraying device 3 from the return pipe 12, enters the filler 5 through the first spraying device 3, flows downwards to the water tank 6, and enters the water supply pipe 14. In the transition season operation mode, the fresh air exchanges heat with the first surface type heat exchanger 10, so that the temperature of the fresh air is increased, and the second surface type heat exchanger 8 is protected; the opening and closing sealing device is an air valve or a heat insulation sealing door or a hinged heat insulation sealing door; when the second opening and closing sealing device 13 is a heat-insulating sealing door, the spraying device and other parts can be overhauled through the second opening and closing sealing device 13. The number of the air inlets of the air conditioning unit is more than two, and the more than two air inlets are arranged on the same side or two opposite sides or two adjacent sides or each side of the shell of the air conditioning unit.

As shown in fig. 8 and 9, two first and

second exhaust fans

1 and 17 are installed in an exhaust fan box where the exhaust fans are installed, the first and

second exhaust fans

1 and 17 are centrifugal exhaust fans, first and

second motors

18 and 19 which are matched with the two exhaust fans are arranged up and down, a water receiving tray 22 is arranged below the filler 5, the water receiving tray 22 is connected with a water tank 6 which is positioned below the water receiving tray 22 through a water discharging hole, a water discharging pipe connected with a first outlet of the water tank 6 is connected with an inlet of the second surface type heat exchanger 8 through a water pump 11, and a unit water supplying pipe 14 is connected with a second inlet of the water tank 6. As shown in fig. 8, summer operation mode: the first opening and closing sealing device 9 is opened, and the second opening and closing sealing device 13 is closed. Fresh air enters a second surface type heat exchanger 8 through a first opening and closing sealing device 9, exchanges heat with the second surface type heat exchanger 8, enters a filler 5, exchanges heat and humidity with aquatic products sprayed by a first spraying device 3 and a second spraying device 4 from bottom to top, and is discharged by a first exhaust fan 1 and a second exhaust fan 17; the unit backwater enters the first spraying device 3 from the backwater pipe 12, enters the filler 5 through the first spraying device 3, flows down to the water tank 6 and enters the water supply pipe 14; the water supply part of the unit enters a second surface type heat exchanger 8 through a water pump 11, the outlet water after heat exchange enters a second spraying device 4, enters a filler 5 through the second spraying device 4, flows downwards to a water tank 6 and enters a water supply pipe 14. Winter operation mode: the first opening and closing sealing device 9 is closed, and the second opening and closing sealing device 13 is opened. Fresh air enters the first surface type heat exchanger 10 through the second air inlet, exchanges heat with the first surface type heat exchanger 10, and is discharged by the first exhaust fan 1 and the second exhaust fan 17; the first surface type heat exchanger 10 is provided with a liquid inlet and a liquid outlet, the secondary refrigerant circulating in the first surface type heat exchanger 10 is antifreeze, and antifreeze with different concentrations is configured according to the extreme minimum temperature of different areas, so that the antifreeze during winter operation is ensured. Transition season operation mode: the first and second means 13 are closed. Fresh air passes through the second air inlet first surface type heat exchanger 10, exchanges heat with the first surface type heat exchanger 10, enters the filler 5 through the second surface type heat exchanger 8, exchanges heat and humidity with aquatic products sprayed out of the first spraying device 3 from bottom to top, and is then discharged by the first exhaust fan 1 and the second exhaust fan 17; the unit return water enters the first spraying device 3 from the return pipe 12, enters the filler 5 through the first spraying device 3, flows downwards to the water tank 6, and enters the water supply pipe 14. The air exhaust is realized by the combination of two centrifugal fans, so that the uniform contact heat exchange between air and water is ensured, and the stability of cold water preparation is ensured. The motor corresponding to the exhaust fan is arranged up and down, so that the installation space is saved. As shown in fig. 9, summer operation mode: the first opening and closing sealing device 9 is opened, and the second opening and closing sealing device 13 is closed. Fresh air enters a second surface type heat exchanger 8 through a first opening and closing sealing device 9, exchanges heat with the second surface type heat exchanger 8, enters a filler 5, exchanges heat and humidity with aquatic products sprayed by a first spraying device 3 and a second spraying device 4 from bottom to top, and is discharged by a first exhaust fan 1 and a second exhaust fan 17; the unit backwater enters the first spraying device 3 from the backwater pipe 12, enters the filler 5 through the first spraying device 3, flows down to the water receiving tray 22 and then enters the water tank 6; the water from the water tank 6 enters the second surface type heat exchanger 8 through the water pump 11, the water after heat exchange enters the second spraying device 4, enters the filler 5 through the second spraying device 4, flows downwards to the water receiving disc 22, and then enters the water tank 6. Winter operation mode: the first opening and closing sealing device 9 is closed, and the second opening and closing sealing device 13 is opened. Fresh air enters the first surface type heat exchanger 10 through the second air inlet, exchanges heat with the first surface type heat exchanger 10, and is discharged by the first exhaust fan 1 and the second exhaust fan 17; the first surface type heat exchanger 10 is provided with a liquid inlet and a liquid outlet, the secondary refrigerant circulating in the first surface type heat exchanger 10 is antifreeze, and antifreeze with different concentrations is configured according to the extreme minimum temperature of different areas, so that the antifreeze during winter operation is ensured. Transition season operation mode: the first opening and closing sealing device 9 and the second opening and closing sealing device 13 are closed. Fresh air passes through the second air inlet first surface type heat exchanger 10, exchanges heat with the first surface type heat exchanger 10, enters the filler 5 through the second surface type heat exchanger 8, exchanges heat and humidity with aquatic products sprayed out of the first spraying device 3 from bottom to top, and is then discharged by the first exhaust fan 1 and the second exhaust fan 17; the unit return water enters the first spraying device 3 from the return pipe 12, enters the filler 5 through the first spraying device 3, flows downwards to the water receiving disc 22, and then enters the water tank 6. The number of the air inlets of the air conditioning unit is more than two, and the more than two air inlets are arranged on the same side or two opposite sides or two adjacent sides or each side of the shell of the air conditioning unit.

As shown in fig. 10, a second air inlet is arranged on the wall of the air chamber above the first opening and closing sealing device 9, a first surface heat exchanger 10 with a liquid inlet and a liquid outlet is arranged on the fresh air inlet in a matching way, the upper end of the air chamber 7 is communicated with the exhaust fan box through a communication port, and a second opening and closing sealing device 13 corresponding to the first surface heat exchanger 10 is arranged on the communication port in a matching way. Summer operation mode: the first opening and closing sealing device 9 is opened, and the second opening and closing sealing device 13 is closed. Fresh air enters a second surface type heat exchanger 8 through a first opening and closing sealing device 9, exchanges heat with the second surface type heat exchanger 8, enters a filler 5, exchanges heat and humidity with aquatic products sprayed by a first spraying device 3 and a second spraying device 4 from bottom to top, and is discharged by a first exhaust fan 1; the unit backwater enters the first spraying device 3 from the backwater pipe 12, enters the filler 5 through the first spraying device 3, flows down to the water tank 6 and enters the water supply pipe 14; the water supply part of the unit enters a second surface type heat exchanger 8 through a water pump 11, the outlet water after heat exchange enters a second spraying device 4, enters a filler 5 through the second spraying device 4, flows downwards to a water tank 6 and enters a water supply pipe 14. Winter operation mode: the first opening and closing sealing device 9 is closed, and the second opening and closing sealing device 13 is opened. Fresh air enters the first surface type heat exchanger 10 through the second air inlet, exchanges heat with the first surface type heat exchanger 10, and is discharged by the first exhaust fan 1; the first surface type heat exchanger 10 is provided with a liquid inlet and a liquid outlet, the secondary refrigerant circulating in the first surface type heat exchanger 10 is antifreeze, and antifreeze with different concentrations is configured according to the extreme minimum temperature of different areas, so that the antifreeze during winter operation is ensured. Transition season operation mode: the first opening and closing sealing device 9 and the second opening and closing sealing device 13 are closed. Fresh air passes through the second air inlet first surface type heat exchanger 10, exchanges heat with the first surface type heat exchanger 10, enters the filler 5 through the second surface type heat exchanger 8, exchanges heat and humidity with aquatic products sprayed out of the first spraying device 3 from bottom to top, and is then discharged by the first exhaust fan 1; the unit return water enters the first spraying device 3 from the return pipe 12, enters the filler 5 through the first spraying device 3, flows downwards to the water tank 6, and enters the water supply pipe 14. The position of the first surface type heat exchanger 10 is close to that of the second opening and closing sealing device 13, so that the air circulation distance is shortened during winter running, the safety of the unit during winter running is ensured, and the resistance during winter running is reduced.

As shown in fig. 11, a second air inlet is formed in the air chamber wall at the upper part of the second surface type heat exchanger 8, a first surface type heat exchanger 10 having a liquid inlet and a liquid outlet is mounted on the second air inlet in a matching manner, the upper end of the air chamber 7 is communicated with the exhaust fan case through a communication port, a second opening and closing sealing device 13 is mounted on the communication port in a matching manner, a first air inlet is formed in the air chamber wall corresponding to the second opening and closing sealing device 13, and a first opening and closing sealing device 9 is arranged on the first air inlet. Summer operation mode: the first opening and closing sealing device 9 is opened, and the second opening and closing sealing device 13 is closed. Fresh air enters a second surface type heat exchanger 8 through a first opening and closing sealing device 9, exchanges heat with the second surface type heat exchanger 8, enters a filler 5, exchanges heat and humidity with aquatic products sprayed by a first spraying device 3 and a second spraying device 4 from bottom to top, and is discharged by a first exhaust fan 1; the unit backwater enters the first spraying device 3 from the backwater pipe 12, enters the filler 5 through the first spraying device 3, flows down to the water tank 6 and enters the water supply pipe 14; the water supply part of the unit enters a second surface type heat exchanger 8 through a water pump 11, the outlet water after heat exchange enters a second spraying device 4, enters a filler 5 through the second spraying device 4, flows downwards to a water tank 6 and enters a water supply pipe 14. Winter operation mode: the first opening and closing sealing device 9 is closed, and the second opening and closing sealing device 13 is opened. Fresh air enters the first surface type heat exchanger 10 through the second air inlet, exchanges heat with the first surface type heat exchanger 10, and is discharged by the first exhaust fan 1; the first surface type heat exchanger 10 is provided with a liquid inlet and a liquid outlet, the secondary refrigerant circulating in the first surface type heat exchanger 10 is antifreeze, and antifreeze with different concentrations is configured according to the extreme minimum temperature of different areas, so that the antifreeze during winter operation is ensured. Transition season operation mode: the first opening and closing sealing device 9 and the second opening and closing sealing device 13 are closed. Fresh air passes through the second air inlet first surface type heat exchanger 10, exchanges heat with the first surface type heat exchanger 10, enters the filler 5 through the second surface type heat exchanger 8, exchanges heat and humidity with aquatic products sprayed out of the first spraying device 3 from bottom to top, and is then discharged by the first exhaust fan 1; the unit return water enters the first spraying device 3 from the return pipe 12, enters the filler 5 through the first spraying device 3, flows downwards to the water tank 6, and enters the water supply pipe 14. The position of the first surface type heat exchanger 10 is close to that of the second opening and closing sealing device 13, so that the air circulation distance is shortened during winter running, the safety of the unit during winter running is ensured, and the resistance during winter running is reduced.

The opening and closing sealing device is an air valve or a heat preservation sealing door or a hinged heat preservation sealing door.

Claims

1. The utility model provides a multichannel indirect evaporation refrigerating plant of data center year-round cooling, includes direct evaporation refrigeration cooling device, characterized by: a first exhaust fan (1), a steam-water separation device (2), a first spray device (3), a second spray device (4), a filler (5) and a water tank (6) are arranged in a cooling device cabinet with an exhaust outlet at the upper part, an air chamber (7) is arranged at the side of the air inlet of the cabinet, a second surface heat exchanger (8) obliquely crossing the air chamber (7) is arranged at the upper part of the air inlet of the cabinet, a first opening and closing sealing device (9) or a movable heat preservation sealing door (21) is arranged on a first air inlet of the air chamber wall at the upper part of the air chamber, a first surface heat exchanger (10) is arranged on a second air inlet arranged on the air chamber wall in a matching way, a liquid inlet and a liquid outlet of the first surface heat exchanger (10) are respectively communicated with a liquid return pipe and a liquid supply pipe of a user side, a secondary refrigerant of the system is antifreeze liquid, an outlet pipe of the water tank (6) is connected with the, the outlet pipe of the water-saving device is connected with a second spraying device (4), the unit water return pipe (12) is connected with a first spraying device (3), and the unit water supply pipe (14) is connected with a water tank (6).

2. The multi-channel indirect evaporative cooling device for year round data center cooling according to claim 1, wherein: the first surface type heat exchanger (10) of a liquid inlet and a liquid outlet is installed on a second air inlet arranged on the wall of the air chamber below the second surface type heat exchanger (8) in a matching mode, vertical symmetrical slide rails (20) are arranged on the walls of the air chambers on the two sides of the first air inlet and the second air inlet, and a movable heat-insulating sealing door (21) is matched with the symmetrical slide rails (20) to control the opening and closing of the first air inlet and the second air inlet.

3. The multi-channel indirect evaporative cooling device for year round data center cooling according to claim 1, wherein: a first surface type heat exchanger (10) is arranged on a second air inlet arranged on the wall of the air chamber below the second surface type heat exchanger (8) in a matching way, and a second opening and closing sealing device (13) is arranged on the air inlet side of the first surface type heat exchanger (10) with a liquid inlet and a liquid outlet.

4. The multi-channel indirect evaporative cooling device for year round data center cooling according to claim 1, wherein: a second air inlet is arranged on the wall of the air chamber at the upper part of the first opening and closing sealing device (9), a first surface type heat exchanger (10) with a liquid inlet and a liquid outlet is arranged on the second air inlet in a matching way, the upper end of the air chamber (7) is communicated with an exhaust fan box through a communicating port, and a second opening and closing sealing device (13) is arranged on the communicating port in a matching way.

5. The multi-channel indirect evaporative cooling device for year round data center cooling as claimed in claim 4, wherein: a water receiving tray (22) is arranged below the filler (5), and the water receiving tray (22) is connected with a water tank (6) positioned below the water receiving tray (22) through a water discharging hole.

6. The multi-channel indirect evaporative cooling device for year round data center cooling as claimed in claim 4, wherein: an access hole (15) is arranged on the exhaust fan box.

7. The multi-channel indirect evaporative cooling device for year round data center cooling as claimed in claim 4, wherein: and a third air inlet is arranged on the wall of the air chamber below the second surface type heat exchanger (8), and a third opening and closing sealing device (16) is arranged on the air inlet.

8. The multi-channel indirect evaporative cooling device for year round data center cooling as claimed in claim 4, wherein: two symmetrical air inlets are respectively arranged at two sides of the case, a left air chamber (7) and a right air chamber (7) are respectively arranged at the symmetrical air inlet sides of the case, a second surface type heat exchanger (8) obliquely crossing the air chambers (7) is respectively arranged at the upper parts of the two symmetrical first air inlets of the case, the first surface type heat exchanger (10) is respectively arranged on the second air inlet arranged on the air chamber wall at the upper part of the first opening and closing sealing device (9) in a matching way, two symmetrical communicating ports are respectively communicated with the air chambers (7) at the left side and the right side on the two side walls of the exhaust fan case, second opening and closing sealing devices (13) are respectively arranged on the symmetrical communicating ports in a matching way, an outlet pipe of the water tank (6) is connected with the inlets of the two second surface type heat exchangers (8) in parallel, an outlet pipe thereof is connected with the second spraying device (4), and liquid inlet pipes of the two first surface type heat exchangers (, the liquid outlet is connected with a liquid supply pipe in parallel.

9. The multi-channel indirect evaporative cooling device for year round data center cooling according to claim 4 or 8, wherein: two first and second exhaust fans (1, 17) are installed in an exhaust fan box for installing the exhaust fans, the first and second exhaust fans (1, 17) are centrifugal exhaust fans, first and second motors (18, 19) matched with the two exhaust fans are arranged up and down, a water receiving tray (22) is arranged below a filler (5), the water receiving tray (22) is connected with a water tank (6) positioned below the water receiving tray (22) through a drain hole, a water outlet pipe connected with a first outlet of the water tank (6) is connected with an inlet of a second surface type heat exchanger (8) through a water pump (11), and a unit water supply pipe (14) is connected with a second inlet of the water tank (6).

10. The multi-channel indirect evaporative cooling device for year round data center cooling according to claim 1, wherein: a second air inlet is arranged on the wall of the air chamber at the upper part of the first opening and closing sealing device (9), a first surface type heat exchanger (10) with a liquid inlet and a liquid outlet is arranged on the fresh air inlet in a matching way, the upper end of the air chamber (7) is communicated with the exhaust fan box through a communicating port, and a second opening and closing sealing device (13) corresponding to the first surface type heat exchanger (10) is arranged on the communicating port in a matching way.

11. The multi-channel indirect evaporative cooling device for year round data center cooling according to claim 1, wherein: the second air inlet is arranged on the air chamber wall on the upper portion of the second surface type heat exchanger (8), the first surface type heat exchanger (10) with a liquid inlet and a liquid outlet is installed on the second air inlet in a matched mode, the upper end of the air chamber (7) is communicated with the exhaust fan box through the arranged communicating port, the second opening and closing sealing device (13) is installed on the communicating port in a matched mode, the first air inlet is arranged on the air chamber wall corresponding to the second opening and closing sealing device (13), and the first opening and closing sealing device (9) is arranged on the first air inlet.

12. A multi-channel indirect evaporative cooling device for year round cooling of data center as claimed in claim 1, 2, 3, 4, 5, 6, 7, 8, 10 or 11, wherein: the opening and closing sealing device is an air valve or a heat preservation sealing door or a hinged heat preservation sealing door.