CN210568970U

CN210568970U - Cold supply device combining cold storage and water storage for data center

Info

Publication number: CN210568970U
Application number: CN201921163919.7U
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: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-05-19
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses a cooling device that cold-storage water storage combined together for data center, the import of the side of first plate heat exchanger is being connected to the outlet pipe of cold source, the cold source import is being connected to its side outlet pipe once, user's import is being connected to first plate heat exchanger secondary side outlet pipe, be located and setting up the bypass on the pipeline between second circulating pump and the third valve, second plate heat exchanger secondary side import is being connected through the fourth valve to this bypass, be located and setting up the bypass on the pipeline between third valve and the user's import, second plate heat exchanger secondary side outlet pipe is linked together with this bypass, the play water pipe of cold-storage tank is being connected second plate heat exchanger side import through the third circulating pump, cold-storage tank is connected to its side outlet pipe once. The utility model discloses rational in infrastructure, through the refrigeration mode of traditional cooling water set refrigeration for assisting, reduce the operation energy consumption of data center computer lab, through being provided with the cold-storage tank, maintain the cooling to data center, the lift system fail safe nature.

Description

Cold supply device combining cold storage and water storage for data center

Technical Field

The utility model belongs to the air treatment equipment in heating and ventilating air conditioning field, especially a cooling device that cold-storage water storage combined together for data center.

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.

The dry and hot areas contain rich dry air energy, and cold air or/and cold water obtained by the dry air energy evaporative refrigeration technology can be used for obtaining cold supply of the data computer room, so that the high-efficiency energy-saving requirement of the data computer room is met. The disadvantage of evaporative refrigeration is that it is affected by the external air environment, whereas the conventional refrigeration method is not affected by the external environment parameters, but the energy consumption is high. Therefore, the advantages of the two refrigeration modes are reasonably complemented, and the requirement of high safety and reliability of the data center is further met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cooling device that data center used cold-storage water storage combined together, its is rational in infrastructure, refrigerates for the refrigeration mode of assisting through traditional cooling water set, reduces the operation energy consumption of data center computer lab, through being provided with the cold-storage tank, can maintain the cooling to data center, lift system fail safe nature.

The purpose of the utility model is realized like this: the utility model provides a cooling device that cold-storage water storage combined together for data center, the export pipe of cold source is connected the import of first plate heat exchanger one side through first circulating pump, the import of cold source is being connected to its one side outlet pipe, user's import is being connected through second circulating pump and third valve to first plate heat exchanger secondary side outlet pipe, be located and setting up the bypass on the pipeline between second circulating pump and the third valve, the import of second plate heat exchanger secondary side is being connected through the fourth valve to this bypass, be located and setting up the bypass on the pipeline between third valve and the user's import, second plate heat exchanger secondary side outlet pipe is linked together with this bypass, the play water pipe of cold-storage tank is connected the import of second plate heat exchanger one side through the third circulating pump, its one side outlet pipe is connecting the cold-storage tank.

The utility model discloses rational in infrastructure, through the refrigeration mode of traditional cooling water set refrigeration for assisting, reduced the operation energy consumption of data center computer lab, through being provided with the cold-storage tank, maintain the cooling to data center, promoted system fail safe nature.

Drawings

Next, it is right to combine the attached drawing to describe the utility model discloses, 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 1 overlooking structural schematic, fig. 11 is cold-storage tank embodiment 2 overlooking structural schematic, fig. 12 is cold-storage tank embodiment 3 overlooking structural schematic.

Detailed Description

A cold supply device combining cold storage and water storage for a data center is shown in figure 1, an outlet pipe of a cold source 1 is connected with an inlet at the primary side of a first plate type heat exchanger 3 through a first circulating pump 2, the outlet pipe at the primary side of the first plate type heat exchanger 3 is connected with the inlet of the cold source 1, the outlet pipe at the secondary side of the first plate type heat exchanger 3 is connected with the inlet of a user 5 through a second circulating pump 4 and a third valve 6, a bypass is arranged on the pipeline between the second circulating pump 4 and the third valve 6, the bypass is connected with a secondary side inlet of a second plate heat exchanger 8 through a fourth valve 7, the bypass is arranged on a pipeline between a third valve 6 and an inlet of a user 5, a secondary side outlet pipe of the second plate heat exchanger 8 is communicated with the bypass, a water outlet pipe of a cold accumulation water storage tank 10 is connected with a primary side inlet of the second plate heat exchanger 8 through a third circulating pump 9, and a primary side outlet pipe of the cold accumulation water storage tank 10 is connected with the cold accumulation water storage tank 10. A normal mode of operation. The first circulating pump 2, the second circulating pump 4 and the third valve 6 are opened, and the third circulating pump 9 and the fourth valve 7 are closed. The cold source 1 supplies water, the water enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, and the high-temperature water after heat exchange returns to the cold source 1; the secondary side effluent of the first plate heat exchanger 3 passes through the second circulating pump 4 and enters the user 5 through the third valve 6, and the return water of the user 5 returns to the first plate heat exchanger 3. An extreme operation mode: the first circulation pump 2, the second circulation pump 4, the third circulation pump 9, the third valve 6 and the fourth valve 7 are opened. The cold source 1 supplies water, the water enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, and the high-temperature water after heat exchange returns to the cold source 1; the secondary side effluent of the first plate heat exchanger 3 partially or completely enters the secondary side of a second plate heat exchanger 8 through a fourth valve 7 through a second circulating pump 4 for heat exchange, the effluent after heat exchange is mixed with the effluent passing through a third valve 6 and then enters a user 5, and the return water of the user 5 returns to the first plate heat exchanger 3 (when the secondary side effluent of the first plate heat exchanger 3 completely passes through the fourth valve 7, the third valve 6 is closed, and the secondary side effluent of the second plate heat exchanger 8 directly enters the user 5); the second plate heat exchanger 8 once inclines to be connected with the cold-storage tank through third circulating pump 9, reaches the heat transfer of 8 both sides of second plate heat exchanger through the circulation of third circulating pump 9. The cold accumulation water storage tank has the integrated functions of cold accumulation, water storage, water replenishing, pollution discharge and drainage, and the auxiliary cold supply in an extreme operation mode.

As shown in fig. 2, the chilled water outlet pipe of the water-cooled chiller 12 is connected with the cold storage water storage tank 10, the outlet pipe of the primary side of the second plate heat exchanger 8 is connected with the chilled water inlet of the water-cooled chiller 12, the outlet pipe of the primary side of the first plate heat exchanger 3 is connected with the inlet of the cold source 1 through the first valve 14, a bypass is arranged on the outlet pipe of the primary side of the first plate heat exchanger 3 positioned behind the first valve 14, the bypass is connected with the cooling water inlet of the water-cooled chiller 12 through the second valve 15, and the cooling water outlet pipe is connected on the pipeline of the inlet of the cold source 1 connected with the outlet pipe of the primary side of the first plate heat exchanger 3 positioned in. And (3) a normal operation mode: the first circulating pump 2, the second circulating pump 4, the first valve 14 and the third valve 6 are opened, and the water-cooled chiller 12, the third circulating pump 9, the second valve 15 and the fourth valve 7 are closed. The cold source 1 supplies water, the water enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, and the high-temperature water after heat exchange returns to the cold source 1 through the first valve 14; the secondary side effluent of the first plate heat exchanger 3 passes through the second circulating pump 4 and enters the user 5 through the third valve 6, and the return water of the user 5 returns to the first plate heat exchanger 3. An extreme operation mode: and the water-cooled chiller 12, the first circulating pump 2, the second circulating pump 4, the third circulating pump 9, the first valve 14, the second valve 15, the third valve 6 and the fourth valve 7 are opened. The cold source 1 supplies water, the water enters the primary side of a first plate heat exchanger 3 through a first circulating pump 2 for heat exchange, part or all of the high-temperature water after heat exchange is used as cooling water of a condenser through a second valve 15 and enters a water-cooling water chilling unit 12, and the outlet water is mixed with the outlet water passing through a first valve 14 and then returns to the cold source 1 (when the high-temperature water after heat exchange passes through the second valve 15, the first valve 14 is closed, and the outlet water at the condenser side of the water-cooling water chilling unit 12 directly returns to the cold source 1); the secondary side effluent of the first plate heat exchanger 3 partially or completely enters the secondary side of a second plate heat exchanger 8 through a fourth valve 7 through a second circulating pump 4 for heat exchange, the effluent after heat exchange is mixed with the effluent passing through a third valve 6 and then enters a user 5, and the return water of the user 5 returns to the first plate heat exchanger 3 (when the secondary side effluent of the first plate heat exchanger 3 completely passes through the fourth valve 7, the third valve 6 is closed, and the secondary side effluent of the second plate heat exchanger 8 directly enters the user 5); the inlet water of the primary side of the second plate heat exchanger 8 is connected with the cold accumulation water storage tank 10 through a third circulating pump 9, the outlet water enters the evaporator side of the water-cooling water chiller 12, the outlet water of the evaporator side of the water-cooling water chiller 12 enters the cold accumulation water storage tank 10, and the cold accumulation water storage tank 10 is cooled. The water outlet pipe on the evaporator side of the water-cooling cold water machine and the primary side water inlet pipe of the second plate heat exchanger 8 are connected with the cold accumulation water storage tank 10, and the inlet on the evaporator side of the water-cooling cold water machine is connected with the primary side outlet of the second plate heat exchanger 8, so that the cold accumulation water storage tank 10 is prevented from generating cold loss, a circulating pump is reduced, and the energy consumption is reduced.

As shown in fig. 3, a chilled water outlet pipe of the water-cooled chiller unit 12 is connected to a primary side inlet of the second plate heat exchanger 8, a primary side outlet pipe thereof is connected to the cold storage water reservoir 10, and a water outlet pipe thereof is connected to a chilled water inlet of the water-cooled chiller unit 12 through a fourth circulating pump 11. And (3) a normal operation mode: the first circulating pump 2, the second circulating pump 4, the first valve 14 and the third valve 6 are opened, and the water-cooled chiller 12, the fourth circulating pump 11, the second valve 15 and the fourth valve 7 are closed. The cold source 1 supplies water, the water enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, and the high-temperature water after heat exchange returns to the cold source 1 through the first valve 14; the secondary side effluent of the first plate heat exchanger 3 passes through the second circulating pump 4 and enters the user 5 through the third valve 6, and the return water of the user 5 returns to the first plate heat exchanger 3. An extreme operation mode: and the water-cooled chiller 12, the first circulating pump 2, the second circulating pump 4, the fourth circulating pump 11, the first valve 14, the second valve 15, the third valve 6 and the fourth valve 7 are opened. The cold source 1 supplies water, the water enters the primary side of a first plate heat exchanger 3 through a first circulating pump 2 for heat exchange, part or all of the high-temperature water after heat exchange is used as cooling water of a condenser through a second valve 15 and enters a water-cooling water chilling unit 12, and the outlet water is mixed with the outlet water passing through a first valve 14 and then returns to the cold source 1 (when the high-temperature water after heat exchange passes through the second valve 15, the first valve 14 is closed, and the outlet water at the condenser side of the water-cooling water chilling unit 12 directly returns to the cold source 1); the secondary side effluent of the first plate heat exchanger 3 partially or completely enters the secondary side of a second plate heat exchanger 8 through a fourth valve 7 through a second circulating pump 4 for heat exchange, the effluent after heat exchange is mixed with the effluent passing through a third valve 6 and then enters a user 5, and the return water of the user 5 returns to the first plate heat exchanger 3 (when the secondary side effluent of the first plate heat exchanger 3 completely passes through the fourth valve 7, the third valve 6 is closed, and the secondary side effluent of the second plate heat exchanger 8 directly enters the user 5); the water from the cold accumulation water storage tank 10 enters the water inlet at the evaporator side of the water-cooling chiller 12 through the fourth circulating pump 11, the water enters the primary side of the second plate heat exchanger 8, and the water returns to the cold accumulation water storage tank 10. The water outlet of the water-cooling water chiller evaporator is connected with the primary side water inlet of the second plate heat exchanger 8, so that the loss of cooling capacity is reduced.

As shown in fig. 4, the outlet pipe on the primary side of the second plate heat exchanger 8 is connected to the chilled water inlet of the water-cooled chiller 12 through a fifth valve 16, and the outlet pipe on the primary side of the second plate heat exchanger 8 located behind the fifth valve 16 is provided with a bypass, and the bypass is connected to the cold storage water reservoir 10 through a sixth valve 17. And (3) a normal operation mode: the first circulating pump 2, the second circulating pump 4, the first valve 14 and the third valve 6 are opened, and the water-cooled chiller 12, the third circulating pump 9, the second valve 15, the fourth valve 7, the fifth valve 16 and the sixth valve 17 are closed. The cold source 1 supplies water, the water enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, and the high-temperature water after heat exchange returns to the cold source 1 through the first valve 14; the secondary side effluent of the first plate heat exchanger 3 passes through the second circulating pump 4 and enters the user 5 through the third valve 6, and the return water of the user 5 returns to the first plate heat exchanger 3. An extreme operation mode: and the water-cooling water chilling unit 12, the first circulating pump 2, the second circulating pump 4, the third circulating pump 9, the first valve 14, the second valve 15, the third valve 6, the fourth valve 7, the fifth valve 16 and the sixth valve 17 are opened. The cold source 1 supplies water, the water enters the primary side of a first plate heat exchanger 3 through a first circulating pump 2 for heat exchange, part or all of the high-temperature water after heat exchange is used as cooling water of a condenser through a second valve 15 and enters a water-cooling water chilling unit 12, and the outlet water is mixed with the outlet water passing through a first valve 14 and then returns to the cold source 1 (when the high-temperature water after heat exchange passes through the second valve 15, the first valve 14 is closed, and the outlet water at the condenser side of the water-cooling water chilling unit 12 directly returns to the cold source 1); the secondary side effluent of the first plate heat exchanger 3 partially or completely enters the secondary side of a second plate heat exchanger 8 through a fourth valve 7 through a second circulating pump 4 for heat exchange, the effluent after heat exchange is mixed with the effluent passing through a third valve 6 and then enters a user 5, and the return water of the user 5 returns to the first plate heat exchanger 3 (when the secondary side effluent of the first plate heat exchanger 3 completely passes through the fourth valve 7, the third valve 6 is closed, and the secondary side effluent of the second plate heat exchanger 8 directly enters the user 5); the inlet water on the other side of the second plate heat exchanger 8 is connected with the cold accumulation water storage tank 10 through a third circulating pump 9, the outlet water can partially or completely enter the evaporator side of the water-cooled cold water machine through a fifth valve 16, the outlet water on the evaporator side of the water-cooled cold water machine set 12 enters the cold accumulation water storage tank 10, and cold is supplied to the cold accumulation water storage tank 10 (when the outlet water on the primary side of the second plate heat exchanger 8 partially passes through the fifth valve 16, at this time, the sixth valve 17 is opened, and the other part directly returns to the cold accumulation water storage tank 10 through the sixth valve 17).

As shown in fig. 5, the outlet pipe of the cold storage water storage tank 10 is connected to the inlet of the second plate heat exchanger 8 through the eighth valve 19, the seventh valve 18 and the third circulating pump 9, the outlet pipe thereof is connected to the bypass provided on the connecting pipe between the seventh valve 18 and the eighth valve 19 of the cold storage water storage tank 10, and the outlet pipe of the chilled water of the water cooling chiller 12 is connected to the bypass. And (3) a normal operation mode: the first circulating pump 2, the second circulating pump 4, the first valve 14 and the third valve 6 are opened, and the water-cooled chiller 12, the third circulating pump 9, the second valve 15, the fourth valve 7, the seventh valve 18 and the eighth valve 19 are closed. The cold source 1 supplies water, the water enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, and the high-temperature water after heat exchange returns to the cold source 1 through the first valve 14; the secondary side effluent of the first plate heat exchanger 3 passes through the second circulating pump 4 and enters the user 5 through the third valve 6, and the return water of the user 5 returns to the first plate heat exchanger 3. An extreme operation mode: and the water-cooling water chilling unit 12, the first circulating pump 2, the second circulating pump 4, the third circulating pump 9, the first valve 14, the second valve 15, the third valve 6, the fourth valve 7, the seventh valve 18 and the eighth valve 19 are opened. The cold source 1 supplies water, the water enters the primary side of a first plate heat exchanger 3 through a first circulating pump 2 for heat exchange, part or all of the high-temperature water after heat exchange is used as cooling water of a condenser through a second valve 15 and enters a water-cooling water chilling unit 12, and the outlet water is mixed with the outlet water passing through a first valve 14 and then returns to the cold source 1 (when the high-temperature water after heat exchange passes through the second valve 15, the first valve 14 is closed, and the outlet water at the condenser side of the water-cooling water chilling unit 12 directly returns to the cold source 1); the secondary side effluent of the first plate heat exchanger 3 partially or completely enters the secondary side of a second plate heat exchanger 8 through a fourth valve 7 through a second circulating pump 4 for heat exchange, the effluent after heat exchange is mixed with the effluent passing through a third valve 6 and then enters a user 5, and the return water of the user 5 returns to the first plate heat exchanger 3 (when the secondary side effluent of the first plate heat exchanger 3 completely passes through the fourth valve 7, the third valve 6 is closed, and the secondary side effluent of the second plate heat exchanger 8 directly enters the user 5); the water from the cold storage water storage tank 10 enters the inlet of the evaporator side of the water-cooling chiller unit 12, the water from the evaporator side enters the second plate heat exchanger 8 through the valve 7 and the third circulating pump 9, the water from the evaporator side enters the cold storage water storage tank 10 on the primary side, and the water from the evaporator side of the second plate heat exchanger 8 returns to the cold storage water storage tank 8 on the primary side (when the water from the evaporator side of the water-cooling chiller unit 12 cannot meet the requirement of the second plate heat exchanger 8, the eighth valve 19 is opened, the water in the cold storage water storage tank 10 enters the second plate heat exchanger 8 on the primary side after being mixed with the water from the evaporator side.

As shown in fig. 6, the outlet pipe of the cold-storage water storage tank 10 is connected to the chilled water inlet of the air-cooled water chiller 13 through the fourth circulating pump 11, and the outlet pipe thereof is connected to the cold-storage water storage tank 10. And (3) a normal operation mode: the first circulating pump 2, the second circulating pump 4 and the third valve 6 are opened, and the air-cooled water chilling unit 13, the third circulating pump 9, the fourth circulating pump 11 and the fourth valve 7 are closed. The cold source 1 supplies water, the water enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, and the high-temperature water after heat exchange returns to the cold source 1; the secondary side effluent of the first plate heat exchanger 3 passes through the second circulating pump 4 and enters the user 5 through the third valve 6, and the return water of the user 5 returns to the first plate heat exchanger 3. An extreme operation mode: and the air-cooled water chilling unit 13, the first circulating pump 2, the second circulating pump 4, the third circulating pump 9, the fourth circulating pump 11, the third valve 6 and the fourth valve 7 are opened. The cold source 1 supplies water, the water enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, and the high-temperature water after heat exchange returns to the cold source 1; the evaporator side of the air-cooled water chilling unit 13 is connected with the cold accumulation water storage tank 10 through a fourth circulating pump 11, and the water in the cold accumulation water storage tank 10 is cooled through circulation of the fourth circulating pump 11; the secondary side effluent of the first plate heat exchanger 3 partially enters the secondary side of a second plate heat exchanger 8 through a fourth valve 7 through a second circulating pump 4 for heat exchange, the effluent after heat exchange is mixed with the effluent passing through a third valve 6 and then enters a user 5, and the return water of the user 5 returns to the first plate heat exchanger 3 (when the secondary side effluent of the first plate heat exchanger 3 completely passes through the fourth valve 7, the third valve 6 is closed, and the secondary side effluent of the second plate heat exchanger 8 directly enters the user 5); the other side of the second plate heat exchanger 8 is connected with a cold accumulation water storage tank 10 through a third circulating pump 9, and heat exchange is achieved on two sides of the second plate heat exchanger 8 through circulation of the third circulating pump 9. An air-cooled water chilling unit 13 is added in the system to assist in cooling the cold storage water storage tank 10.

As shown in fig. 7, the cold source 1 is an evaporation cooling water chiller 20. And (3) a normal operation mode: the first circulating pump 2, the second circulating pump 4 and the third valve 6 are opened, and the air-cooled water chilling unit 13, the third circulating pump 9, the fourth circulating pump 11 and the fourth valve 7 are closed. The water supplied by the evaporative cooling water chiller 20 enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, and the high-temperature water after heat exchange returns to the evaporative cooling water chiller 20; the secondary side effluent of the first plate heat exchanger 3 passes through the second circulating pump 4 and enters the user 5 through the third valve 6, and the return water of the user 5 returns to the first plate heat exchanger 3. An extreme operation mode: and the air-cooled water chilling unit 13, the first circulating pump 2, the second circulating pump 4, the third circulating pump 9, the fourth circulating pump 11, the third valve 6 and the fourth valve 7 are opened. The water supplied by the evaporative cooling water chiller 20 enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, and the high-temperature water after heat exchange returns to the evaporative cooling water chiller 20; the evaporator side of the air-cooled water chilling unit 13 is connected with the cold accumulation water storage tank 10 through a fourth circulating pump 11, and the water in the cold accumulation water storage tank 10 is cooled through circulation of the fourth circulating pump 11; the secondary side effluent of the first plate heat exchanger 3 partially enters the secondary side of a second plate heat exchanger 8 through a fourth valve 7 through a second circulating pump 4 for heat exchange, the stored water after heat exchange is mixed with the effluent passing through a third valve 6 and then enters a user 5, and the return water of the user 5 returns to the first plate heat exchanger 3 (when the secondary side effluent of the first plate heat exchanger 3 completely passes through the fourth valve 7, the third valve 6 is closed, and the secondary side effluent of the second plate heat exchanger 8 directly enters the user 5); the other side of the second plate heat exchanger 8 is connected with a cold accumulation water storage tank 10 through a third circulating pump 9, and heat exchange is achieved on two sides of the second plate heat exchanger 8 through circulation of the third circulating pump 9. The evaporative cooling water chiller 20 may be a direct evaporative water chiller (cooling tower) or an indirect evaporative water chiller.

As shown in fig. 8, the outlet pipe of the cold storage water storage tank 10 is connected to the chilled water inlet of the water-cooled chiller 12 through the fourth circulating pump 11, the chilled water outlet pipe is connected to the cold storage water storage tank 10, the primary outlet pipe of the first plate heat exchanger 3 is connected to the inlet of the cold source 1 through the first valve 14, a bypass is arranged on the primary outlet pipe of the first plate heat exchanger 3 located behind the first valve 14, the bypass is connected to the chilled water inlet of the water-cooled chiller 12 through the second valve 15, and the outlet pipe is connected to the primary outlet pipe of the first plate heat exchanger 3 located in front of the first valve 14. A normal mode of operation. The first circulating pump 2, the second circulating pump 4, the first valve 14 and the third valve 6 are opened, and the water-cooled chiller 12, the third circulating pump 9, the fourth circulating pump 11, the second valve 15 and the fourth valve 7 are closed. The cold source 1 supplies water, the water enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, and the high-temperature water after heat exchange returns to the cold source 1 through the first valve 14; the secondary side effluent of the first plate heat exchanger 3 passes through the second circulating pump 4 and enters the user 5 through the third valve 6, and the return water of the user 5 returns to the first plate heat exchanger 3. An extreme operation mode: and the water-cooling water chilling unit 12, the first circulating pump 2, the second circulating pump 4, the third circulating pump 9, the fourth circulating pump 11, the first valve 14, the second valve 15, the third valve 6 and the fourth valve 7 are opened. The cold source 1 supplies water, the water enters the primary side of a first plate heat exchanger 3 through a first circulating pump 2 for heat exchange, part or all of the high-temperature water after heat exchange is used as cooling water of a condenser through a second valve 15 and enters a water-cooling water chilling unit 12, and the outlet water is mixed with the outlet water passing through a first valve 14 and then returns to the cold source 1 (when the high-temperature water after heat exchange passes through the second valve 15, the first valve 14 is closed, and the outlet water at the condenser side of the water-cooling water chilling unit 12 directly returns to the cold source 1); the evaporator side of the water-cooling water chilling unit 12 is connected with the cold accumulation water storage tank 10 through a fourth circulating pump 11, and the water in the cold accumulation water storage tank 10 is cooled through circulation of the fourth circulating pump 11; the secondary side effluent of the first plate heat exchanger 3 partially or completely enters the secondary side of a second plate heat exchanger 8 through a fourth valve 7 through a second circulating pump 4 for heat exchange, the effluent after heat exchange is mixed with the effluent passing through a third valve 6 and then enters a user 5, and the return water of the user 5 returns to the first plate heat exchanger 3 (when the secondary side effluent of the first plate heat exchanger 3 completely passes through the fourth valve 7, the third valve 6 is closed, and the secondary side effluent of the second plate heat exchanger 8 directly enters the user 5); the other side of the second plate heat exchanger 8 is connected with a cold accumulation water storage tank 10 through a third circulating pump 9, and heat exchange is achieved on two sides of the second plate heat exchanger 8 through circulation of the third circulating pump 9. A water-cooling water chilling unit 12 is added in the system to assist cold supply of the cold storage water storage tank 10.

As shown in fig. 9, the cold source 1 is an evaporation cooling water chiller 20. And (3) a normal operation mode: the first circulating pump 2, the second circulating pump 4, the first valve 14 and the third valve 6 are opened, and the water-cooled chiller 12, the third circulating pump 9, the fourth circulating pump 11, the second valve 15 and the fourth valve 7 are closed. The water supplied by the evaporative cooling water chiller 20 enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, and the high-temperature water after heat exchange returns to the evaporative cooling water chiller 20 through the first valve 14; the secondary side effluent of the first plate heat exchanger 3 passes through the second circulating pump 4 and enters the user 5 through the third valve 6, and the return water of the user 5 returns to the first plate heat exchanger 3. An extreme operation mode: and the water-cooling water chilling unit 12, the first circulating pump 2, the second circulating pump 4, the third circulating pump 9, the fourth circulating pump 11, the first valve 14, the second valve 15, the third valve 6 and the fourth valve 7 are opened. The evaporative cooling water chiller 20 supplies water and enters the primary side of the first plate heat exchanger 3 through the first circulating pump 2 for heat exchange, part or all of the high-temperature water after heat exchange is used as cooling water of a condenser and enters the water-cooling water chiller 12 through the second valve 15, and the outlet water is mixed with the outlet water passing through the first valve 14 and then returns to the evaporative cooling water chiller 20 (when the high-temperature water after heat exchange passes through the second valve 15, the first valve 14 is closed, and the outlet water at the condenser side of the water-cooling water chiller 12 directly returns to the evaporative cooling water chiller 20); the evaporator side of the water-cooling water chilling unit 12 is connected with the cold accumulation water storage tank 10 through a fourth circulating pump 11, and the water in the cold accumulation water storage tank 10 is cooled through circulation of the fourth circulating pump 11; the secondary side effluent of the first plate heat exchanger 3 partially or completely enters the secondary side of a second plate heat exchanger 8 through a fourth valve 7 through a second circulating pump 4 for heat exchange, the effluent after heat exchange is mixed with the effluent passing through a third valve 6 and then enters a user 5, and the return water of the user 5 returns to the first plate heat exchanger 3 (when the secondary side effluent of the first plate heat exchanger 3 completely passes through the fourth valve 7, the third valve 6 is closed, and the secondary side effluent of the second plate heat exchanger 8 directly enters the user 5); the other side of the second plate heat exchanger 8 is connected with a cold accumulation water storage tank 10 through a third circulating pump 9, and heat exchange is achieved on two sides of the second plate heat exchanger 8 through circulation of the third circulating pump 9. The evaporative cooling water chiller 20 is a direct evaporative cooling water chiller or/and an indirect evaporative cooling water chiller.

As shown in fig. 10, the front and rear walls of the cold storage water storage tank 10 are uniformly provided with the diversion partitions 21 arranged alternately, wherein one end of the diversion partition 21 is connected with the matched tank wall, and a channel is provided between the other end and the corresponding tank wall. The cold accumulation water storage tank 10 is provided with a flow guide clapboard 21, so that the cold loss in the tank is reduced.

As shown in fig. 11, a transverse partition 22 is provided in the middle of the cold-storage water reservoir 10 to divide the cold-storage water reservoir 10 into left and

right regions

23, 24, wherein the height of the transverse partition 22 is lower than the height of the wall of the cold-storage water reservoir 10. The cold accumulation water storage tank 10 is provided with a transverse clapboard 22 which divides the cold accumulation water outlet tank into a left area 23 and a right area 24, and the transverse clapboard 22 is shorter than the wall of the cold accumulation water storage tank 10, so that the water level imbalance of the two areas is prevented, and the cold loss in the tank is reduced.

As shown in fig. 12, the cold storage water storage tank 10 is partitioned into large and

small regions

25, 26 by a partition wall 27 provided in the cold storage water storage tank 10, wherein the partition wall 27 of the small region 26 is shorter than the wall height of the cold storage water storage tank 10. The cold accumulation water storage tank 10 is provided with a partition wall 27 which divides the cold accumulation water outlet tank into a large area 25 and a small area 26, and the partition wall 27 is shorter than the wall of the cold accumulation water storage tank 10, so that the water level imbalance of the two areas is prevented, and the cold loss in the tank is reduced.

The cold source in the above embodiments is a conventional mechanical refrigeration unit or/and an evaporative cooling chiller, and the evaporative cooling chiller is a direct evaporative cooling chiller or/and an indirect evaporative cooling chiller.

Claims

1. A cold supply device combining cold accumulation and water storage for a data center is characterized in that: an outlet pipe of the cold source (1) is connected with an inlet at the primary side of the first plate heat exchanger (3) through a first circulating pump (2), the outlet pipe at the primary side of the first plate type heat exchanger (3) is connected with the inlet of the cold source (1), the outlet pipe at the secondary side of the first plate type heat exchanger (3) is connected with the inlet of a user (5) through a second circulating pump (4) and a third valve (6), a bypass is arranged on the pipeline between the second circulating pump (4) and the third valve (6), the bypass is connected with a secondary side inlet of the second plate heat exchanger (8) through the fourth valve (7), the bypass is arranged on a pipeline between the third valve (6) and an inlet of the user (5), a secondary side outlet pipe of the second plate heat exchanger (8) is communicated with the bypass, a water outlet pipe of the cold accumulation water storage tank (10) is connected with a primary side inlet of the second plate heat exchanger (8) through the third circulating pump (9), and a primary side outlet pipe of the cold accumulation water storage tank (10) is connected with the cold accumulation water storage tank (10).

2. The data center cold storage and water storage combined cold supply device as claimed in claim 1, wherein: cold-storage tank (10) is connected to water-cooling chiller (12) refrigerated water outlet pipe, the inlet of water-cooling chiller (12) refrigerated water is connected to the side outlet pipe once of second plate heat exchanger (8), the import of cold source (1) is being connected through first valve (14) to the side outlet pipe once of first plate heat exchanger (3), set up the bypass on the side outlet pipe once of first plate heat exchanger (3) that is located first valve (14) rear, this bypass is being connected water-cooling chiller (12) cooling water import through second valve (15), its cooling water outlet pipe is connected on the pipeline of being located cold source (1) import is connected to the side outlet pipe once of first plate heat exchanger (3) in first valve (14) the place ahead.

3. The cooling device for data center combined with cold storage and water storage as claimed in claim 2, wherein: the chilled water outlet pipe of the water-cooled chiller unit (12) is connected with the inlet of the primary side of the second plate heat exchanger (8), the outlet pipe of the primary side of the chilled water outlet pipe is connected with the cold accumulation water storage tank (10), and the water outlet pipe of the chilled water outlet pipe is connected with the chilled water inlet of the water-cooled chiller unit (12) through a fourth circulating pump (11).

4. The cooling device for data center combined with cold storage and water storage as claimed in claim 2, wherein: an outlet pipe on the primary side of the second plate heat exchanger (8) is connected with a chilled water inlet of the water-cooled chiller unit (12) through a fifth valve (16), a bypass is arranged on an outlet pipe on the primary side of the second plate heat exchanger (8) behind the fifth valve (16), and the bypass is connected with the cold storage water storage tank (10) through a sixth valve (17).

5. The cooling device for data center combined with cold storage and water storage as claimed in claim 2, wherein: an outlet pipe of the cold accumulation water storage tank (10) is connected with an inlet of the second plate type heat exchanger (8) through an eighth valve (19), a seventh valve (18) and a third circulating pump (9), a bypass is arranged on a connecting pipeline between the seventh valve (18) and the eighth valve (19) of the cold accumulation water storage tank (10) and the outlet pipe of the cold accumulation water storage tank, and a chilled water outlet pipe of the water cooling water chilling unit (12) is connected with the bypass.

6. The data center cold storage and water storage combined cold supply device as claimed in claim 1, wherein: the outlet pipe of the cold accumulation water storage tank (10) is connected with the chilled water inlet of the air-cooled water chiller (13) through a fourth circulating pump (11), and the outlet pipe of the cold accumulation water storage tank is connected with the cold accumulation water storage tank (10).

7. The cooling device for data center combined with cold storage and water storage as claimed in claim 6, wherein: the cold source (1) is an evaporative cooling water chiller (20).

8. The data center cold storage and water storage combined cold supply device as claimed in claim 1, wherein: the outlet pipe of cold-storage tank (10) is connected with water-cooling water set (12) refrigerated water import through fourth circulating pump (11), cold-storage tank (10) is connected to its refrigerated water outlet pipe, the import of cold source (1) is being connected through first valve (14) to the side outlet pipe of first plate heat exchanger (3) once, set up the bypass on the side outlet pipe of first plate heat exchanger (3) once that is located first valve (14) rear, water-cooling water set (12) cooling water import is being connected through second valve (15) to this bypass, its outlet pipe is connected on the side outlet pipe of first plate heat exchanger (3) once that is located first valve (14) the place ahead.

9. The data center cold storage and water storage combined cooling device as claimed in claim 8, wherein: the cold source (1) is an evaporative cooling water chiller (20).

10. The data center cold storage and water storage combined cold supply device as claimed in claim 1, wherein: flow guide partition plates (21) which are arranged at intervals in a staggered mode are uniformly distributed on the front pool wall and the rear pool wall of the cold storage water storage pool (10), wherein one end of each flow guide partition plate (21) is connected with the corresponding pool wall, and a channel is arranged between the other end of each flow guide partition plate and the corresponding pool wall.

11. The data center cold storage and water storage combined cold supply device as claimed in claim 1, wherein: the middle part of the cold accumulation water storage tank (10) is provided with a transverse clapboard (22) which divides the cold accumulation water storage tank (10) into a left area (23) and a right area (24), wherein the height of the transverse clapboard (22) is shorter than the height of the wall of the cold accumulation water storage tank (10).

12. The data center cold storage and water storage combined cold supply device as claimed in claim 1, wherein: the cold storage water storage tank (10) is separated into large and small areas (25, 26) by a separating wall (27) arranged in the cold storage water storage tank (10), wherein the height of the separating wall (27) of the small area (26) is shorter than the height of the wall of the cold storage water storage tank (10).