CN217899985U - Thermal management system and data center - Google Patents

Abstract

The utility model relates to a data center technical field discloses a heat management system and data center, and this heat management system can retrieve the heat that data center produced to solve the extravagant problem of the energy. The heat management system comprises a compressor, a condenser, an evaporator, a throttle valve, a first heat exchanger and a first switching device, wherein the outlet of the compressor is connected with a first node, the first node is connected with the inlet of the condenser through a first pipeline and connected with the first inlet of the first heat exchanger through a second pipeline, and the first outlet of the first heat exchanger is connected with the inlet of the condenser; the outlet of the condenser is connected with the inlet of the evaporator through a throttle valve, and the outlet of the evaporator is connected with the inlet of the compressor; the first heat exchanger is used for exchanging heat with a water supply system of the data center; the first switch device is used for controlling the on-off of the first pipeline and the second pipeline.

Description

Thermal management system and data center

Technical Field

The utility model relates to a data center technical field especially relates to a heat management system and data center.

Background

In order to cope with the development trend of servers such as cloud computing, virtualization, centralization and high-density, some data centers adopt a modular design concept to divide a data center field into micro modules, the whole data center is divided into a plurality of independent areas, and the scale, the power load, the configuration and the like of each area are designed according to a unified standard. The micromodule data center can be arranged in an office building, and a refrigerating system of the data center can discharge a large amount of waste heat to the environment in the operation process, so that the waste heat easily causes a heat island effect on one hand, the construction of a good building environment is not facilitated, and a large amount of energy is wasted on the other hand.

SUMMERY OF THE UTILITY MODEL

The utility model provides a thermal management system and data center, this thermal management system can retrieve the heat that data center produced to solve the extravagant problem of the energy.

In a first aspect, the present invention provides a thermal management system that is applicable to a data center. The heat management system may include a compressor, a condenser, an evaporator, a throttle valve, a first heat exchanger, and a first switching device, wherein an outlet of the compressor may be connected to a first node provided, the first node may be connected to an inlet of the condenser through a first pipeline, and the first node may be further connected to a first inlet of the first heat exchanger through a second pipeline, and a first outlet of the first heat exchanger may be connected to an inlet of the condenser. The outlet of the condenser may be connected to the inlet of the evaporator via a throttle valve, the outlet of the evaporator being connected to the inlet of the compressor. The first heat exchanger may be configured to exchange heat with a water supply of the data center to transfer heat generated by the data center to the water supply. The first switching device may be used to control the on and off states of the first and second conduits.

Among the above-mentioned scheme, when first switching device control first pipeline was closed, the second pipeline switched on, the refrigerant can give water supply system with the partial heat that data center produced through first heat exchanger transmission when through first heat exchanger to utilize the waste heat to heat water supply system, this thermal management system can operate in the heat recovery mode all the year round, do not receive the season restriction, thereby can effectively improve waste heat recovery rate. Additionally, because the utility model discloses can be directly insert water supply system with first heat exchanger, need not to change the original structure of building, consequently the feasibility is higher to help reducing the transformation cost.

In some possible embodiments, the first heat exchanger may include a first flow passage and a second flow passage separated from each other, and the first flow passage and the second flow passage may exchange heat therebetween, and the first inlet and the first outlet may be an inlet and an outlet of the first flow passage, respectively. The heat management system can also comprise a second heat exchanger, the second heat exchanger can comprise a third flow passage and a fourth flow passage which are separated, heat exchange can also be carried out between the third flow passage and the fourth flow passage, and when the heat exchange system is specifically arranged, the third flow passage is communicated with the second flow passage, and the fourth flow passage is communicated with a water supply system. Through setting up the second heat exchanger, can avoid the direct risk that gets into first heat exchanger and be polluted by the refrigerant of water among the water supply system to guarantee the cleanliness factor of the water among the water supply system.

In some possible embodiments, the water supply system may include a low level tank, a high level tank, and a first circulation pump, wherein the low level tank may be connected to a municipal water network, the first circulation pump may be used to pump water in the low level tank into the high level tank, the high level tank may form a loop with the fourth flow passage of the second heat exchanger, and the high level tank is connected to the water using appliance.

In some other possible embodiments, the water supply system may include a low level tank, a first transition tank, and a second circulation pump, wherein the low level tank is connected to a municipal water network, the first transition tank is connected to and forms a loop with the second flow path, and the first transition tank is further connected to and forms a loop with the third flow path. The second circulating pump can be used for pumping water in the low-level water tank into a fourth flow channel, and the fourth flow channel is connected with a water using appliance. At the moment, high-temperature water after heat exchange and temperature rise with the first flow passage in the second flow passage can be stored in the first transition water tank, and the high-temperature water in the first transition water tank can exchange heat with water supplied to a water using appliance through the second heat exchanger, so that the purpose of heating the water is achieved.

In some other possible embodiments, the water supply system may further include a second transition water tank, and the second transition water tank may be connected to the water using appliance. The municipal water network can be connected with the second transition water tank through a third pipeline, can be connected with a second flow channel through a fourth pipeline, and the second flow channel can also be connected with the second transition water tank. At this time, the thermal management system may further include a second switching device, and the second switching device may be configured to switch the third pipeline and the fourth pipeline on and off. When the second switching device controls the third pipeline to be disconnected and the fourth pipeline to be connected, water supplied by the municipal water network can enter the second flow channel, exchanges heat with the first flow channel to be heated and then is stored in the second transition water tank, and the second transition water tank supplies water to the water using appliance, so that waste heat generated by the data center is fully utilized.

For example, the water supply system may further comprise a heat source device, which may be used to heat the water in the second intermediate water tank to ensure that the user is supplied with water at a suitable temperature.

In some possible embodiments, the thermal management system may further include a third circulation pump, a third switching device, and a fourth switching device. When the device is specifically arranged, the outlet of the evaporator can be connected with the inlet of the compressor through a fifth pipeline and connected with the first node through a sixth pipeline; the outlet of the condenser can be connected with the throttle valve through a seventh pipeline and connected with the inlet of the third circulating pump through an eighth pipeline, and the outlet of the third circulating pump is connected with the throttle valve. The third switching device can be used for controlling the on-off of the fifth pipeline and the sixth pipeline, and the fourth switching device can be used for controlling the on-off of the seventh pipeline and the eighth pipeline. By adopting the design, the heat management system can realize refrigeration through the compressor and can realize natural cooling through the pump, thereby expanding the working mode of the heat management system and being beneficial to leading the heat management system to run more energy-saving.

In some possible embodiments, the first switch device may include a second two-way valve and a second two-way valve, the first two-way valve may be disposed on the first pipeline to control the on/off of the first pipeline, and the second two-way valve may be disposed on the second pipeline to control the on/off of the second pipeline.

In some other possible embodiments, the first switching device may be a three-way valve, and in this case, the first switching device may include a first valve port, a second valve port, and a third valve port, wherein the first valve port may be connected to the outlet of the compressor, the second valve port may be connected to the inlet of the condenser, and the third valve port may be connected to the first inlet of the first heat exchanger. Therefore, the on-off control of the first pipeline and the second pipeline can be realized by controlling the communication state of the first valve port, the second valve port and the third valve port.

Similarly, the second switching device may include a third two-way valve and a fourth two-way valve, the third two-way valve being disposed on the third pipeline, and the fourth two-way valve being disposed on the fourth pipeline. Or the second switch device can also be a three-way valve, and three valve ports of the second switch device can be respectively connected with the municipal water net, the third pipeline and the fourth pipeline.

Of course, the third switching device and the fourth switching device may also be configured to include two-way valves, or may be designed to use one three-way valve, and will not be described herein.

In a second aspect, the present application further provides a data center, which may include a server and the thermal management system in any of the foregoing possible embodiments, where the thermal management system may be used to dissipate heat from the server. The heat generated by the data center during working can be transferred to a water supply system of the data center by the heat management system, so that the waste heat is recycled, and the energy waste is reduced.

Drawings

Fig. 1 is a layout diagram of a thermal management system in a building according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the thermal management system and water supply system shown in FIG. 1;

fig. 3 is another schematic structural diagram of a first switch device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another thermal management system according to an embodiment of the present invention;

fig. 5 is a layout view of another thermal management system according to an embodiment of the present invention in a building;

FIG. 6 is a schematic structural view of the thermal management system and water supply system shown in FIG. 5;

fig. 7 is a schematic structural diagram of another thermal management system and a water supply system according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another thermal management system and a water supply system according to an embodiment of the present invention.

Description of the drawings:

100-machine room; 200-low-level equipment room; 300-higher level device room; 400-a water supply system; 410-a low level water tank;

420-high level tank; 430-water appliances; 500-a thermal management system; 510-an indoor unit; 520-an outdoor unit;

530-a first heat exchanger; 511-compressor; 512-an evaporator; 513-throttle valve; 521-an evaporator; 522-a first conduit;

523-second conduit; 514-a first dry filter; 531-first inlet; 532-first outlet;

533-a first flow channel; 534-a second flow channel; 540-first switching means; 541-a first two-way valve; 542-second two-way valve;

543-a first valve port; 544-a second valve port; 545-third valve port; 550-a second heat exchanger; 551-third flow channel;

552-fourth flow path; 450-a first transition water tank; 460-a second circulation pump; 470-a second transition water tank;

471-third line; 472-fourth conduit; 480-a heat source device; 560-a second switching device; 561-third two-way valve;

562-a fourth two-way valve; 570-a third circulation pump; 5121-fifth line; 5122-sixth line; 5211-seventh conduit;

5212-eighth conduit; 580-third switching device; 590-a fourth switching device; 581-a fifth two-way valve;

582-a sixth two-way valve; 591-a seventh two-way valve; 592-eighth two-way valve.

Detailed Description

The terminology used in the following examples is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, such as "one or more", unless the context clearly indicates otherwise.

Reference throughout this specification to "one embodiment," "a particular embodiment," or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present invention. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

In order to cope with the development trend of servers such as cloud computing, virtualization, centralization and high-density, some data centers adopt a modular design concept at present to divide a data center field into micro modules, the whole data center is divided into a plurality of independent areas, and the scale, the power load, the configuration and the like of each area are designed according to a unified standard. For example, the refrigeration, power supply and management system of the micro-module data center can realize regionalization and micro-modules, all the micro-modules are not interfered with each other and can run independently, and therefore the development trend of servers such as cloud computing, virtualization, centralization and high-density can be better met.

A micro-modular data center may typically be deployed in an office building, in which case the outdoor unit of the data center refrigeration system may be placed in a building rooftop or in a high-rise electromechanical equipment room. Refrigerating system can discharge a large amount of waste heat to the environment at the operation in-process, can lead to forming the heat island effect on the one hand like this, is unfavorable for constructing good building environment, and on the other hand also can cause a large amount of energy extravagant.

In view of this, the embodiment of the utility model provides a thermal management system and applied this thermal management system's data center, this thermal management system can retrieve the heat that data center produced, under the prerequisite that need not to change the original structure of building, utilizes the heat of retrieving to heat the water supply system in the building, because this thermal management system can operate all the year round, does not receive the season restriction, consequently can effectively solve the extravagant problem of energy.

Referring to fig. 1, fig. 1 is a layout diagram of a thermal management system in a building according to an embodiment of the present invention. Can be provided with equipment room and computer lab in the building, wherein, the equipment room can be located the low floor of building in, also can be located the high-rise floor of building, and computer lab 100 can be located the arbitrary one deck floor of building, specifically can decide according to function and regional division in the building, the utility model discloses do not restrict to this. For convenience of description, the equipment room located at the lower floor will be referred to as a lower equipment room 200, and the equipment room located at the higher floor will be referred to as a higher equipment room 300.

In this embodiment, the data center is disposed in the machine room 100, and the data center may include a server, the thermal management system 500, and the water supply system 400. The thermal management system 500 may include an indoor unit 510, an outdoor unit 520, and a first heat exchanger 530. The indoor unit 510 may be disposed in the machine room 100, so as to dissipate heat of a server in the machine room 100. The outdoor unit 520 is connected to the indoor unit 510 through a pipe, and the outdoor unit 520 may be installed in a high-rise facility room 300 or a rooftop of a building. The first heat exchanger 530 may also be located on the high-rise equipment room 300 or the rooftop, and the first heat exchanger 530 is connected to the outdoor unit 520 through a pipe, and the first heat exchanger 530 may be used to exchange heat with the water supply system 400, so as to transfer heat generated by the machine room 100 to the water supply system 400.

The water supply system 400 may be used to supply water to water appliances within a building. Exemplary water appliances include, but are not limited to, faucets, showers, and the like. The water supply system 400 may include a water tank and a connection pipe connected between the water tank and a water using appliance, wherein the water tank may be located in the lower-level equipment room 200, or in the higher-level equipment room 300, or water tanks may be provided in the lower-level equipment room 200 and the higher-level equipment room 300, respectively, as shown in fig. 1, in which case the lower-level water tank 410 in the lower-level equipment room 200 may be connected to a municipal water network, the higher-level water tank 420 in the higher-level equipment room 300 may be connected to a water using appliance 430 in a building, and the water supply system 400 may further include a first circulation pump 440, and the first circulation pump 440 may be used to pump water in the lower-level water tank 410 into the higher-level water tank 420.

Referring to fig. 1 and 2, fig. 2 is a schematic structural view of the thermal management system and the water supply system shown in fig. 1. In one embodiment, the indoor unit 510 may include a compressor 511, an evaporator 512, and a throttle valve 513, and the outdoor unit 520 may include a condenser 521. The outlet of the compressor 511 is connected to a first node a, which may be connected via a first line 522 to the inlet of a condenser 521, the outlet of the condenser 521 being connected via a throttle 513 to the inlet of an evaporator 512, the outlet of the evaporator 512 being connected to the inlet of the compressor 511. Thus, the compressor 511, the condenser 521, the throttle 513 and the evaporator 512 may be sequentially connected to form a first circulation circuit, which is a circulation circuit of the refrigerant of the thermal management system 500 in the cooling mode of the compressor 511.

The first node a may be connected to a first inlet 531 of the first heat exchanger 530 through a second pipeline 523, and a first outlet 532 of the first heat exchanger 530 may be connected to an inlet of the condenser 521. That is, there are two connection ways between the first node a and the inlet of the condenser 521, the first is direct connection, and the second is connection after passing through the first heat exchanger 530. In a second connection, the compressor 511, the first heat exchanger 530, the condenser 521, the throttle 513 and the evaporator 512 may be connected in sequence to form a second circulation loop, which is the circulation loop of the thermal management system 500 in the compressor cooling and heat recovery mode.

It should be noted that, in some embodiments, the thermal management system 500 may further include a first filter drier 514, and the first filter drier 514 may be disposed on the connection pipeline between the condenser 521 and the throttle valve 513 to filter out impurities in the refrigerant, so as to ensure reliable operation of the first circulation circuit and the second circulation circuit.

In a specific implementation, the first heat exchanger 530 may be a dual-channel heat exchanger, two channels of the dual-channel heat exchanger are separated and arranged in heat-conducting contact, one of the channels may be used for flowing a heat medium, and the other channel may be used for flowing a cold medium, so that heat exchange may be performed during the flowing process of the cold medium and the heat medium. Illustratively, the first heat exchanger 530 includes, but is not limited to, a plate heat exchanger, a double pipe heat exchanger, or a shell and tube heat exchanger, etc. Specifically, the two flow paths of the first heat exchanger 530 may be a first flow path 533 and a second flow path 534, respectively, and the first flow path 533 and the second flow path 534 connected between the first node a and the condenser 521 may be specifically configured to exchange heat with the water supply system.

In this embodiment, the thermal management system 500 may further include a first switching device 540, and the first switching device 540 may be configured to control on/off of the first pipe 522 and the second pipe 523, that is, to control on/off of the first circulation loop and the second circulation loop, so as to switch an operation mode of the thermal management system 500.

For example, in the embodiment shown in fig. 2, the first switching device 540 may include a first two-way valve 541 and a second two-way valve 542, the first two-way valve 541 may be disposed in the first pipeline 522 for switching the first pipeline 522 on or off, and the second two-way valve 542 may be disposed in the second pipeline 523 for switching the second pipeline 523 on or off. As can be appreciated, when first two-way valve 541 is open and second two-way valve 542 is closed, the first circulation loop of thermal management system 500 is operating; when first two-way valve 541 is closed and second two-way valve 542 is open, the second circulation loop of thermal management system 500 operates.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a first switch device 540 according to an embodiment of the present invention. In this embodiment, the first switching device 540 may also be a three-way valve, and the three-way valve may include a first port 543, a second port 544 and a third port 545, wherein the first port 543 may be connected to the first node a, the second port 544 may be connected to the first pipeline 522, and the third port 545 may be connected to the second pipeline 523. When the first valve port 543 is communicated with the second valve port 544, a first circulation loop of the thermal management system operates; when the first port 543 is in communication with the third port 545, the second recirculation loop of the thermal management system operates.

Referring to fig. 1 and 2 again, when the first circulation loop operates, the compressor 511 drives the refrigerant to circulate in the loop, the refrigerant performs evaporation heat exchange with high-temperature air in the machine room 100 in the evaporator 512, the temperature of the refrigerant is increased after the refrigerant absorbs heat in the machine room 100, and the refrigerant is changed into low-pressure gaseous refrigerant, and the machine room 100 achieves cooling by transferring heat to the refrigerant. After entering the compressor 511, the heated gaseous refrigerant is compressed into high-temperature and high-pressure gas by the compressor 511, enters the condenser 521, is condensed and exchanges heat with the external environment in the condenser 521 to become low-temperature and high-pressure liquid, is throttled and expanded by the throttle valve 513 to be rapidly cooled, and enters the evaporator 512 again to exchange heat with high-temperature air in the machine room, and the continuous refrigeration of the machine room 100 can be realized by the reciprocating circulation.

When the second circulation loop operates, the compressor 511 drives the refrigerant to circulate in the loop, the high-temperature gaseous refrigerant is compressed into high-temperature high-pressure gas by the compressor 511, then enters the first flow channel 533 of the first heat exchanger 530, performs primary heat exchange and temperature reduction with the cooling water in the second flow channel 534 in the first flow channel 533, then enters the condenser 521 for further condensation and heat exchange with the external environment to obtain low-temperature high-pressure liquid, and then enters the evaporator 512 after being throttled and expanded into low-temperature low-pressure liquid by the throttle valve 513 to perform evaporation and heat exchange with the high-temperature air in the machine room 100. Meanwhile, the cooling water in the second flow channel 534 rises in temperature after absorbing the heat of the high-temperature refrigerant in the first flow channel 533, and then heats the water in the high-level water tank 420, so that the heat generated by the machine room is recycled, and the heat is prevented from being directly dissipated to the external environment to cause a large amount of energy waste.

It is worth mentioning that compared to the prior art solutions that use the recovered waste heat to heat the room, the prior art heat recovery solutions are not suitable for the room with a slightly higher outdoor temperature, and the heat is still discharged to the atmosphere, which also results in a large waste of energy. And the embodiment of the utility model provides a heat management system heats water supply system 400 through utilizing the waste heat for heat management system 500 can operate in the heat recovery mode all the year round, does not receive the season restriction, thereby can effectively improve waste heat recovery rate. In addition, in the embodiment, the first heat exchanger 530 can be directly connected to the water supply system 400 during implementation, and the original structure of the building does not need to be changed, so that the feasibility is high, and the reconstruction cost is reduced.

When the first heat exchanger 530 is used to heat the water supply system, in a specific embodiment, the second flow channel 534 may be connected to the high-level water tank 420 to form a loop, so that water in the high-level water tank 420 directly enters the second flow channel 534 and exchanges heat with the refrigerant in the first flow channel 533. In specific implementation, a circulation pump may be further disposed in a loop formed by the second flow channel 534 and the high-level water tank 420 to drive the cooling water to efficiently flow between the second flow channel 534 and the high-level water tank 420, thereby facilitating further improvement of heat exchange efficiency.

Fig. 4 is a schematic structural diagram of another thermal management system and a water supply system according to an embodiment of the present application. Referring to FIG. 4, in this embodiment, the thermal management system may further comprise a second heat exchanger 550, the second heat exchanger 550 may also be a dual-flow heat exchanger, the second heat exchanger 550 comprises a third flow passage 551 and a fourth flow passage 552 in isolated, thermally conductive contact, wherein the third flow passage 551 is connected to and in circuit with the second flow passage 534, and the fourth flow passage 552 is connected to and in circuit with the head tank 420. At this time, the cooling water in the second flow channel 534 exchanges heat with the high-temperature refrigerant in the first flow channel 533, and then enters the third flow channel 551, and exchanges heat with the low-temperature water flowing from the high-temperature water tank 420 into the fourth flow channel 552 in the third flow channel 551, thereby achieving an effect of heating the water in the high-temperature water tank 420. That is to say, indirect heat exchange can be realized between the first heat exchanger 530 and the high temperature water tank 420 through the second heat exchanger 420, so that the risk that water in the high temperature water tank 420 directly enters the first heat exchanger 530 and is polluted by a refrigerant can be avoided, the water in the high temperature water tank 420 is kept clean, and the use requirement can be met when the requirement on the cleanliness of the water of a water using appliance in a building is high. It can be understood that the circulation pumps can be respectively disposed in the loop formed by the second flow channel 534 and the third flow channel 551 and the loop formed by the fourth flow channel 552 and the head tank 420 to accelerate the flow rate of the cooling water in the two loops, thereby improving the heat exchange efficiency.

Fig. 5 is a layout diagram of another thermal management system provided by an embodiment of the present invention in a building. In this embodiment, the high level tank may not be provided in the building, and in this case, the water using appliances may be directly supplied with water from the low level tank 410. In addition, the water supply system 400 may further include a first transition tank 450, and the first transition tank 450 may be provided to the high-rise equipment room 300 or the building rooftop. Illustratively, the first transition tank 450 may be a civil basin, a water tank, a square tank, or the like.

Referring to fig. 5 and 6 together, fig. 6 is a schematic view of the thermal management system and the water supply system shown in fig. 5. In this embodiment, the first transition water tank 450 may be disposed between the first heat exchanger 530 and the second heat exchanger 550, the first transition water tank 450 may be connected to and form a loop with the second flow channel 534 of the first heat exchanger 530, meanwhile, the first transition water tank 450 may be connected to and form a loop with the third flow channel 551 of the second heat exchanger 550, and the fourth flow channel 552 of the second heat exchanger 550 is connected to the low-level water tank 410 and the water using appliance 430, respectively. In an implementation, the water supply system may further include a second circulation pump 460, and the second circulation pump 460 may be used to pump the water in the low-level water tank 410 into the fourth flow passage 552. Of course, in order to increase the flow rate of the cooling water, circulation pumps may be disposed in the two circuits formed by the first transition water tank 450, the second flow passage 534 and the third flow passage 551.

When a second circulation loop of the thermal management system operates, the compressor 511 drives a refrigerant to circularly flow in the loop, a high-temperature gaseous refrigerant is compressed into high-temperature high-pressure gas by the compressor 511 and then enters the first flow channel 533 of the first heat exchanger 530, the high-temperature gaseous refrigerant and cooling water in the second flow channel 534 in the first flow channel 533 perform primary heat exchange and cooling, then the high-temperature gaseous refrigerant enters the condenser 521 to further perform condensation heat exchange with the external environment to obtain low-temperature high-pressure liquid, and then the low-temperature high-pressure liquid is throttled and expanded by the throttle valve 513 to obtain low-temperature low-pressure liquid and then enters the evaporator 512 to perform evaporation heat exchange with high-temperature air in the machine room. Meanwhile, the cooling water in the second flow channel 534 absorbs the heat of the high-temperature refrigerant in the first flow channel 533, and then the temperature of the cooling water rises, and the cooling water enters the first transition water tank 450 under the driving of the circulating pump, so that the purpose of heating the water in the first transition water tank 450 is achieved.

The heated high-temperature water in the first transition water tank 450 enters the third flow channel 551 of the second heat exchanger 550 under the driving of the circulation pump, exchanges heat with the water in the fourth flow channel 552 in the third flow channel 551, returns to the first transition water tank 450 again under the driving of the circulation pump after heat exchange and temperature reduction, and meanwhile, the water supplied from the low-level water tank 410 in the fourth flow channel 552 exchanges heat with the third flow channel 551 and is supplied to the water-using appliance 430 after temperature rise.

Referring to fig. 7, fig. 7 is a schematic structural diagram of another thermal management system and a water supply system according to an embodiment of the present invention. In this embodiment, the water supply system may include the second transition tank 470, and in addition, neither a high-level tank nor a low-level tank may be provided in the building. The second transition water tank 470 may be disposed at a high-rise equipment room or a building rooftop, and the second transition water tank 470 is connected with the water using appliances 430 inside the building. Illustratively, the second transition water tank 470 may be a civil basin, a water tank, a square water tank, or the like.

In specific implementation, the municipal water network may be connected to the second transition water tank 470 through a third pipe 471, may be connected to the second flow channel 534 through a fourth pipe 472, and may also be connected between the second flow channel 534 and the second transition water tank 470. That is, there are two connection ways between the municipal water network and the second transition water tank 470, one is direct connection, and the other is connection after passing through the first heat exchanger 530. It is understood that a circulation pump may be provided on a connection pipe between the second flow passage 534 and the second transition water tank 470 to drive the cooling water to efficiently flow between the second flow passage 534 and the second transition water tank 470.

It should be noted that the water supply system may further include a heat source device 480, and the heat source device 480 may be used for heating the water in the second intermediate water tank 470. Illustratively, the heat source device 480 may be a common heat source such as a boiler, a heat pump, or the like.

In this embodiment, the thermal management system may further include a second switching device 560, and the second switching device 560 may be used to switch the third pipeline 471 and the fourth pipeline 472. The specific structure of the second switch device 560 is not limited, for example, in the embodiment shown in fig. 6, the second switch device 560 may include a third two-way valve 561 and a fourth two-way valve 562, the third two-way valve 561 may be disposed on the third pipeline 471 for switching on or off the third pipeline 471, and the fourth two-way valve 562 may be disposed on the fourth pipeline 472 for switching on or off the fourth pipeline 472. Of course, in some other embodiments, the second switch device 560 may also be a three-way valve, and three valve ports of the second switch device 560 are respectively connected to the municipal water network, the third pipeline 471 and the fourth pipeline 472, so as to control on/off of the third pipeline 471 and the fourth pipeline 472, which is not described herein again.

When the second switch device 560 controls the third pipeline 471 to be turned on and the fourth pipeline 472 to be turned off, the water supplied from the municipal water network can directly enter the second transition water tank 470, and the water is supplied to the water using appliance from the second transition water tank 470. At this time, the water in the second interim water tank 470 may be heated by the heat source device to ensure that the user is supplied with water at a suitable temperature.

When the second switch device 560 controls the third pipeline 471 to be disconnected and the fourth pipeline 472 to be connected, water supplied by the municipal water network firstly enters the second flow channel 534, exchanges heat with a high-temperature refrigerant in the first flow channel 533 in the second flow channel 534 to increase the temperature, and then enters the second transition water tank 470 under the driving of the circulating pump, so that the purpose of heating the water in the second transition water tank 470 is achieved, on one hand, waste heat generated by the machine room can be fully utilized, and on the other hand, energy consumption of the heat source device can be reduced.

Referring to fig. 8, fig. 8 is a schematic structural diagram of another thermal management system and a water supply system according to an embodiment of the present invention. In this embodiment, the thermal management system may further include a third circulation pump 570. In practice, the outlet of evaporator 512 may be connected to the inlet of compressor 511 via a fifth pipe 5121 and to the first node a via a sixth pipe 5122. That is, the outlet of the evaporator 512 may be directly connected to the first node a, or may be connected to the first node a via the compressor 511. An outlet of the condenser 521 may be connected to the throttle valve 513 through a seventh pipe 5211, and may be connected to an inlet of the third circulation pump 570 through an eighth pipe 5212, and an outlet of the third circulation pump 570 may also be connected to the throttle valve 513. That is, the outlet of the condenser 521 and the throttle valve 513 may be directly connected to each other or may be connected to each other through the third circulation pump 570. In this way, the third circulation pump 570, the throttle valve 513, the evaporator 512 and the condenser 521 may be sequentially connected to form a third circulation loop, where the third circulation loop is a circulation loop of the refrigerant in the natural cooling mode of the thermal management system; in addition, the third circulation pump 570, the throttle valve 513, the evaporator 512, the first heat exchanger 530, and the condenser 521 may be sequentially connected to form a fourth circulation loop, which is a circulation loop of the thermal management system in the natural cooling and heat recovery mode.

It should be noted that the water supply system may adopt the solution provided in any of the foregoing embodiments, and is not limited herein, and the water supply system shown in fig. 2 is taken as an example in this embodiment.

It should be noted that, in some embodiments, the thermal management system may further include a second filter-drier 515, where the second filter-drier 515 may be disposed at an outlet of the condenser 521 for filtering out impurities in the refrigerant, so as to ensure reliable operation of each circulation loop in the thermal management system.

In this embodiment, the thermal management system may further include a third switching device 580 and a fourth switching device 590. Among them, the third switching device 580 may be used to control the on/off of the fifth and sixth lines 5121 and 5122, and the fourth switching device 590 may be used to control the on/off of the seventh and eighth lines 5211 and 5212. The specific configurations of the third switching device 580 and the fourth switching device 590 are not limited, for example, in the embodiment shown in fig. 7, the third switching device 580 may include a fifth two-way valve 581 and a sixth two-way valve 582, the fifth two-way valve 581 is disposed on the fifth pipeline 5121 for turning on or off the fifth pipeline 5121, and the sixth two-way valve 582 is disposed on the sixth pipeline 5122 for turning on or off the sixth pipeline 5122. Similarly, the fourth switching device 590 may include a seventh two-way valve 591 and an eighth two-way valve 592, the seventh two-way valve 591 being disposed in the seventh pipe 5211 for switching on or off the seventh pipe 5211, and the eighth two-way valve 592 being disposed in the eighth pipe 5212 for switching on or off the eighth pipe 5212.

Of course, in some other embodiments, the third switching device 580 and the fourth switching device 590 may also be three-way valves, and in this case, three valve ports of the third switching device 580 may be connected to the outlet of the evaporator 512, the fifth pipeline 5121 and the sixth pipeline 5122, and three valve ports of the fourth switching device 590 may be connected to the outlet of the condenser 521, the seventh pipeline 5211 and the eighth pipeline 5212, respectively, so that on-off control of the above four pipelines can be realized, which is not described herein again.

It will be appreciated that the first circuit of the thermal management system operates when the first switching device 540 controls the first conduit 522 to be open and the second conduit 523 to be open, the third switching device 580 controls the fifth conduit 5121 to be open and the sixth conduit 5122 to be open, and the fourth switching device 590 controls the seventh conduit 5211 to be open and the eighth conduit 5212 to be open. When the first switching device 540 controls the first pipeline 522 to be disconnected, the second pipeline 523 to be connected, the third switching device 580 controls the fifth pipeline 5121 to be connected, the sixth pipeline 5122 to be disconnected, and the fourth switching device 590 controls the seventh pipeline 5211 to be connected and the eighth pipeline 5212 to be disconnected, the second circulation loop of the thermal management system operates. When the first switching device 540 controls the first pipeline 522 to be conducted, the second pipeline 523 to be disconnected, the third switching device controls the fifth pipeline 5121 to be disconnected, the sixth pipeline 5122 to be conducted, and the fourth switching device 590 controls the seventh pipeline 5211 to be disconnected and the eighth pipeline 5212 to be conducted, the third circulation loop of the thermal management system operates. When the first switching device 540 controls the first pipeline 522 to be disconnected, the second pipeline 523 to be connected, the third switching device controls the fifth pipeline 5121 to be disconnected, the sixth pipeline 5122 to be connected, and the fourth switching device 590 controls the seventh pipeline 5211 to be disconnected and the eighth pipeline 5212 to be connected, the fourth circulation loop of the thermal management system operates.

The working processes of the first circulation loop and the second circulation loop can refer to the description in the foregoing embodiments, and are not repeated herein. The operation of the third and fourth circulation circuits will be described in detail below.

When the third circulation loop operates, the third circulation pump 570 drives the refrigerant to circulate in the loop, the refrigerant is evaporated and exchanges heat with high-temperature air in the machine room in the evaporator 512, the temperature of the refrigerant rises after absorbing heat in the machine room to become a low-pressure gaseous refrigerant, and the machine room realizes temperature reduction by transferring heat to the refrigerant. The heated gaseous refrigerant directly enters the condenser 521, is condensed and exchanges heat with the external environment in the condenser 521 to become low-temperature high-pressure liquid, is throttled and expanded by the throttle valve 513 to be rapidly cooled, is changed into low-temperature low-pressure liquid, then enters the evaporator 512 again to exchange heat with high-temperature air in the machine room, and the machine room can be continuously refrigerated by the reciprocating circulation.

When the fourth circulation loop operates, the third circulation pump 570 drives the refrigerant to circulate in the loop, the high-temperature gaseous refrigerant discharged from the evaporator 512 firstly enters the first flow channel 533 of the first heat exchanger 530, and performs primary heat exchange and cooling with the cooling water in the second flow channel 534 in the first flow channel 533, and then enters the condenser 521 for further condensation and heat exchange with the external environment to obtain low-temperature and high-pressure liquid, and then is throttled and expanded by the throttle valve 513 to obtain low-temperature and low-pressure liquid, and then enters the evaporator 512 to perform evaporation and heat exchange with the high-temperature air in the machine room. Meanwhile, the cooling water in the second flow channel 534 rises in temperature after absorbing the heat of the high-temperature refrigerant in the first flow channel 533, and then heats the water in the high-temperature water tank 420, so that the heat generated by the machine room is recycled, and the heat is prevented from being directly dissipated to the external environment to cause a large amount of energy waste.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A thermal management system is applied to a data center; the system is characterized by comprising a compressor, a condenser, an evaporator, a throttle valve, a first heat exchanger and a first switching device, wherein:

the outlet of the compressor is connected with a first node, the first node is connected with the inlet of the condenser through a first pipeline and is connected with the first inlet of the first heat exchanger through a second pipeline, and the first outlet of the first heat exchanger is connected with the inlet of the condenser;

the outlet of the condenser is connected with the inlet of the evaporator through the throttle valve, and the outlet of the evaporator is connected with the inlet of the compressor;

the first heat exchanger is used for exchanging heat with a water supply system of the data center;

the first switch device is used for controlling the on-off of the first pipeline and the second pipeline.

2. The thermal management system of claim 1, wherein said first heat exchanger includes first and second spaced apart flow passages, said first inlet and said first outlet being an inlet and an outlet, respectively, of said first flow passage;

the heat management system also comprises a second heat exchanger, wherein the second heat exchanger comprises a third flow passage and a fourth flow passage which are isolated, the third flow passage is communicated with the second flow passage, and the fourth flow passage is communicated with the water supply system.

3. The thermal management system of claim 2, wherein said water supply system comprises a low level tank, a high level tank, and a first circulation pump, said low level tank being connected to a municipal water network, said first circulation pump being adapted to pump water from said low level tank into said high level tank, said high level tank being connected to said fourth flow path to form a loop, and said high level tank being connected to a water utility.

4. The thermal management system of claim 2, wherein said water supply comprises a low level tank, a first transition tank, and a second circulation pump, said low level tank being connected to a municipal water network, said first transition tank being connected to and forming a loop with said second flow path, and said first transition tank being connected to and forming a loop with said third flow path;

the second circulating pump is used for pumping the water in the low-level water tank into the fourth flow channel, and the fourth flow channel is connected with a water using appliance.

5. The thermal management system of claim 1, wherein said first heat exchanger includes first and second spaced apart flow passages, said first inlet and said first outlet being an inlet and an outlet, respectively, of said first flow passage;

the water supply system comprises a second transition water tank, and the second transition water tank is connected with a water using appliance;

the municipal water network is connected with the second transition water tank through a third pipeline and is connected with the second flow passage through a fourth pipeline, and the second flow passage is connected with the second transition water tank;

the heat management system further comprises a second switching device, and the second switching device is used for controlling the third pipeline and the fourth pipeline to be switched on and off.

6. The thermal management system of claim 5, wherein said water supply further comprises a heat source means for heating water in said second interim water tank.

7. The thermal management system of any of claims 1-6, further comprising a third circulation pump, a third switching device, and a fourth switching device;

an outlet of the evaporator is connected with an inlet of the compressor through a fifth pipeline and is connected with the first node through a sixth pipeline;

an outlet of the condenser is connected with the throttling valve through a seventh pipeline and is connected with an inlet of the third circulating pump through an eighth pipeline, and an outlet of the third circulating pump is connected with the throttling valve;

the third switching device is used for controlling the on-off of the fifth pipeline and the sixth pipeline;

and the fourth switching device is used for controlling the on-off of the seventh pipeline and the eighth pipeline.

8. The thermal management system of any of claims 1-7, wherein the first switching device comprises a first two-way valve and a second two-way valve, the first two-way valve disposed in the first conduit and the second two-way valve disposed in the second conduit.

9. The thermal management system of any of claims 1-7, wherein the first switching device is a three-way valve, the first switching device comprising a first port connected to the outlet of the compressor, a second port connected to the inlet of the condenser, and a third port connected to the first inlet of the first heat exchanger.

10. A data center comprising a server and a thermal management system according to any one of claims 1 to 9, said thermal management system operable to dissipate heat from said server.

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