Cooling and heating combined supply system of data center and use method of cooling and heating combined supply system

Abstract

The invention discloses a data center cold and heat combined supply system and a use method thereof, relates to the technical field of data center energy consumption, and aims to solve the problem of high energy consumption of an existing data center. The heat pump is installed on one side of the outer portion of the cold storage tank, a cold storage tank circulating pump is arranged between the heat pump and the cold storage tank, and a heat supply tail end is arranged on one side of the outer portion of the heat pump. A better and urgent solution is provided for the problem of high energy consumption in the center, and how to improve the operation efficiency of different types of heat pumps becomes a problem which needs to be solved urgently in the industry.

Description

Technical Field

[0001] The present invention relates to the technical field of data center energy consumption, and in particular to a data center combined cooling and heating system and a use method thereof. Background Art

[0002] In recent years, China's data centers have developed rapidly. The number of data center racks in the country has reached 3.2 million, and the number of data centers has exceeded 74,000, accounting for 23% of the world. While developing rapidly, the problem of high energy consumption in data centers has become prominent. From the perspective of energy consumption growth rate, the growth rate of power consumption of China's data centers has exceeded 12% for eight consecutive years, which is significantly higher than the growth rate of electricity consumption in the whole society.

[0003] For example, the announcement number is CN206310792U, and the name of the Chinese authorized patent is (A data center combined heat and cooling system), including: a solar absorption auxiliary cooling system, a liquid cooling heat dissipation system, a liquid cooling heat recovery auxiliary heating system and a control system; the control system is used to control the switching of the operating modes of the solar absorption auxiliary cooling system, the liquid cooling heat dissipation system and the liquid cooling heat recovery auxiliary heating system. The utility model utilizes the good complementarity between solar absorption refrigeration technology and liquid cooling technology, and utilizes the liquid cooling heat recovery auxiliary heating system to recover the liquid cooling heat dissipation to provide auxiliary heating for the solar air conditioning system, thereby overcoming the problem that the traditional solar air conditioning system requires auxiliary energy such as electricity and chemical energy for heating, thereby causing excessive economic costs. While saving energy in combined heat and cooling, it reduces the waste of heat discharged from the data center to the atmosphere, which is conducive to promoting the practical application of solar refrigeration technology and liquid cooling technology in data centers.

[0004] At the same time, in the more than 40 billion square meters of urban and rural buildings in my country, the fuel for heating is mainly coal and natural gas, and the annual carbon dioxide emissions are more than 2 billion tons. It has been in a state of high energy consumption, low efficiency and high cost for a long time. Therefore, energy saving in building heating has become the top priority of my country's energy conservation work. Compared with traditional building heating technology, the heat pump heating system emits the least carbon dioxide per unit of heat supply. Heat pump technology is the most effective way to achieve the dual carbon goals. At the same time, heat pumps are the key path to achieve the electrification of heating equipment.

[0005] The existing factors that affect the energy consumption of refrigeration systems include: heat generation of various equipment, heat transfer of building enclosure equipment, heat transfer of fresh air systems, solar radiation heat, system energy efficiency ratio, airflow organization, air conditioning operation time, etc., which can be summarized as equipment factors and environmental factors. In the context of the country's efforts to achieve the goals of carbon peak and carbon neutrality, the high energy consumption problem of data centers urgently needs better and more urgent solutions, and how to improve the operating efficiency of different types of heat pumps has become a difficult problem that needs to be solved in the industry. To this end, we provide a data center combined cooling and heating system and its use method. Summary of the invention

[0006] The object of the present invention is to provide a data center combined cooling and heating system and a method of using the same, so as to solve the problem of high energy consumption of existing data centers mentioned in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: a data center cooling and heating system and a method of using the same, comprising a data center cooling terminal and an underground heat exchange pipe, wherein the data center cooling terminal is installed on one side outside the underground heat exchange pipe, and a cold storage tank is provided between the data center cooling terminal and the underground heat exchange pipe;

[0008] Also includes:

[0009] A heat pump is installed on one side of the outside of the cold storage tank, a cold storage tank circulation pump is arranged between the heat pump and the cold storage tank, and a heating terminal is arranged on one side of the outside of the heat pump.

[0010] Preferably, the cooling terminal of the data center and the cold storage tank are connected by a first pipeline, a cold water circulation pump is arranged in the middle of the first pipeline, the cold storage tank and the underground heat exchange pipe are connected by a second pipeline, a first stop valve and a second stop valve are arranged on the second pipeline, and an underground heat exchange circulation pump is arranged in front of the first stop valve.

[0011] Preferably, the cold storage tank and the heat pump are connected by a third pipe, a cold storage tank circulation pump is arranged at the middle position of the third pipe, the heat pump and the heating end are connected by a fourth pipe, a fifth stop valve and a sixth stop valve are arranged at the middle position of the fourth pipe, and a hot water circulation pump is arranged in front of the sixth stop valve.

[0012] Preferably, a fifth pipeline connection is provided between the fourth pipeline and the second pipeline, and a third stop valve and a fourth stop valve are provided at a middle position of the fifth pipeline.

[0013] Preferably, the data center combined cooling and heating system includes a first usage system and a second usage system, and both the first usage system and the second usage system have a winter mode, a summer mode and a transitional season mode.

[0014] Preferably, in the winter mode of the first use system, the third stop valve (90) and the fourth stop valve (110) are closed, and the first stop valve (70), the second stop valve (80), the fifth stop valve (120) and the sixth stop valve (130) are opened. The cold water stored in the cold storage tank (180) enters the refrigeration side of the heat pump (30) through the cold storage tank circulation pump (190) to provide circulation power, and after the heat pump is cooled, it returns to the cold storage tank (180), and the temperature of the cold water in the cold storage tank (180) is at the set value.

[0015] Preferably, the cold water circulation pump provides cold water for circulation power, and is sent from the cold storage tank to the cooling terminal of the data center and then returned to the cold storage tank. The underground heat exchange circulation pump provides cold water for circulation power, and is continuously sent from the cold storage tank to the underground heat exchange pipe. The underground heat exchange pipe absorbs heat from the surrounding soil environment, and after the temperature of the cold water is increased, it is sent back to the cold storage tank. The hot water circulation pump provides hot water for circulation power to enter the heating side of the heat pump. After the heat pump is heated, it is sent to the heating terminal. After the temperature of the hot water decreases, it returns to the hot water circulation pump.

[0016] Preferably, the summer mode closes the first stop valve, the second stop valve, the fifth stop valve and the sixth stop valve, and opens the third stop valve and the fourth stop valve. The cold water stored in the cold storage tank enters the refrigeration side of the heat pump through the cold storage tank circulation pump to provide circulation power. The heat pump returns the water to the cold storage tank after cooling, and maintains the temperature of the cold water in the cold storage tank at a set value. The cold water circulation pump provides cold water for circulation power and continuously sends the cold water from the cold storage tank to the cooling terminal of the data center to cool the data center. After the temperature of the cold water is increased, it is returned to the cold storage tank.

[0017] Preferably, the hot water circulation pump provides circulation power for hot water entering the heating side of the heat pump, and after the heat pump heats up, it is sent to the underground heat exchange pipe, and the underground heat exchange pipe dissipates the heat into the surrounding soil environment, and the hot water temperature drops and returns to the hot water circulation pump.

[0018] Preferably, the third stop valve, the fourth stop valve, the fifth stop valve and the sixth stop valve are closed during the transition season, and the first stop valve and the second stop valve are opened, the underground heat exchange circulation pump provides cold water for circulation power, and continuously sends it from the cold storage tank to the underground heat exchange pipe, the cold water temperature is lowered after the heat is dissipated to the surrounding soil environment through the underground heat exchange pipe, and is sent back to the cold storage tank, the temperature of the cold water in the cold storage tank is at the set value, the cold water circulation pump provides cold water for circulation power, and continuously sends it from the cold storage tank to the cooling terminal of the data center to cool the data center, and the cold water is sent back to the cold storage tank after the temperature is increased.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The system design of the present invention realizes an efficient combined cooling and heating energy system for the data center. While ensuring the refrigeration demand, it can also meet the heating demand of surrounding users. This system can provide cooling for an independent or multiple data centers at the same time. The system can be distributed or centralized. At the same time, the cooling end of the system of this invention can be composed of the cooling end of the data center and the underground heat exchange pipe, in parallel or in series. The heat pump adopts a ground source heat pump, a water source heat pump, a high temperature heat pump, a multi-stage heat pump, a cascade heat pump, a centrifugal heat pump, a screw heat pump, and a vortex heat pump.

[0021] 2. This system design solves the soil heat balance problem caused by the application of conventional ground source heat pump systems in the field of heating. Conventional ground source heat pump heating systems cannot achieve a balance of cold and heat throughout the year due to the single operation mode of energy supply. Long-term operation will lead to heat loss in the underground soil layer, and the temperature will decrease year by year, making the system unable to operate stably for a long time. This system design has a heat supplement function, so that the cold and heat in the soil can reach a balanced state.

[0022] 3. Under environmental conditions, this system design can achieve a cooling mode that uses a natural cooling source, significantly reducing the cooling energy consumption of the data center. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the first method of use of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the second method of use of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the third method of use of the present invention;

[0026] In the figure: 10, data center cooling terminal; 20, cold water circulation pump; 30, heat pump; 40, hot water circulation pump; 50, heating terminal; 60, underground heat exchange pipe; 70, first stop valve; 80, second stop valve; 90, third stop valve; 110, fourth stop valve; 120, fifth stop valve; 130, sixth stop valve; 140, seventh stop valve; 150, eighth stop valve; 160, ninth stop valve; 170, tenth stop valve; 180, cold storage tank; 190, cold storage tank circulation pump; 1020, underground heat exchange circulation pump. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Example 1

[0029] See also Figure 1-3 , an embodiment provided by the present invention: a data center cooling and heating system and a method of using the same, comprising a data center cooling terminal 10 and an underground heat exchange pipe 60, wherein the data center cooling terminal 10 is installed on one side outside the underground heat exchange pipe 60, and a cold storage tank 180 is provided between the data center cooling terminal 10 and the underground heat exchange pipe 60;

[0030] Also includes:

[0031] The heat pump 30 is installed on one side outside the cold storage tank 180 , a cold storage tank circulation pump 190 is provided between the heat pump 30 and the cold storage tank 180 , and a heating terminal 50 is provided on one side outside the heat pump 30 .

[0032] Please refer to the figure, the data center cooling terminal 10 and the cold storage tank 180 are connected by a first pipe, and a cold water circulation pump 20 is arranged in the middle of the first pipe. The cold storage tank 180 and the underground heat exchange pipe 60 are connected by a second pipe, and a first stop valve 70 and a second stop valve 80 are arranged on the second pipe. An underground heat exchange circulation pump 1020 is arranged in front of the first stop valve 70.

[0033] See also Figure 1 The cold storage tank 180 and the heat pump 30 are connected through a third pipeline, a cold storage tank circulation pump 190 is arranged at the middle position of the third pipeline, the heat pump 30 and the heating terminal 50 are connected through a fourth pipeline, a fifth stop valve 102 and a sixth stop valve 130 are arranged at the middle position of the fourth pipeline, a hot water circulation pump 40 is arranged in front of the sixth stop valve 130, a fifth pipeline connection is arranged between the fourth pipeline and the second pipeline, and a third stop valve 90 and a fourth stop valve 110 are arranged at the middle position of the fifth pipeline.

[0034] Example 2

[0035] A data center combined cooling and heating system The data center combined cooling and heating system comprises a first use system and a second use system, wherein the first use system and the second use system both have a winter mode, a summer mode and a transitional season mode.

[0036] See also Figure 1 In the winter mode of the first use system, the third stop valve 90 and the fourth stop valve 110 are closed, and the first stop valve 70, the second stop valve 80, the fifth stop valve 120 and the sixth stop valve 130 are opened. The cold water stored in the cold storage tank 180 enters the refrigeration side of the heat pump 30 through the cold storage tank circulation pump 190 to provide circulation power, and after the heat pump is cooled, it returns to the cold storage tank 180. The temperature of the cold water in the cold storage tank 180 is at the set value.

[0037] See also Figure 1 The cold water circulation pump 20 provides cold water for circulation power, and is sent from the cold storage tank 180 to the data center cooling terminal 10, and then sent back to the cold storage tank 180. The underground heat exchange circulation pump 1020 provides cold water for circulation power, and continuously sends it from the cold storage tank 180 to the underground heat exchange pipe 60. The underground heat exchange pipe 60 absorbs heat from the surrounding soil environment, and after the cold water temperature is increased, it is sent back to the cold storage tank 180. The hot water circulation pump 40 provides hot water for circulation power to enter the heating side of the heat pump 30. After the heat pump 30 is heated, it is sent to the heating terminal 50. After the hot water temperature drops, it returns to the hot water circulation pump 40.

[0038] See also Figure 1 In summer mode, the first stop valve 70, the second stop valve 80, the fifth stop valve 120 and the sixth stop valve 130 are closed, and the third stop valve 90 and the fourth stop valve 10 are opened. The cold water stored in the cold storage tank 180 enters the refrigeration side of the heat pump 30 through the cold storage tank circulation pump 190 to provide circulation power. The heat pump 30 returns the water to the cold storage tank 180 after cooling, and maintains the temperature of the cold water in the cold storage tank 180 at the set value. The cold water circulation pump 20 provides cold water for circulation power and continuously sends it from the cold storage tank 180 to the cooling terminal 10 of the data center to cool the data center. After the temperature of the cold water increases, it is returned to the cold storage tank 180.

[0039] See also Figure 1 The hot water circulating pump 40 provides circulating power for hot water to enter the heating side of the heat pump 30, and after the heat pump 30 is heated, it is sent to the underground heat exchange pipe 60, and the underground heat exchange pipe 60 dissipates the heat to the surrounding soil environment, and the hot water temperature is reduced and then returns to the hot water circulating pump 40.

[0040] See also Figure 1 In the transition season, the third stop valve 90, the fourth stop valve 110, the fifth stop valve 120 and the sixth stop valve 130 are closed, and the first stop valve 70 and the second stop valve 80 are opened. The underground heat exchange circulation pump 1020 provides cold water for circulation power, and continuously sends it from the cold storage tank 180 to the underground heat exchange pipe 60. The heat is dissipated to the surrounding soil environment through the underground heat exchange pipe 60. After the cold water temperature is lowered, it is sent back to the cold storage tank 180. The temperature of the cold water in the cold storage tank 180 is at the set value. The cold water circulation pump 20 provides cold water for circulation power, and continuously sends it from the cold storage tank 180 to the data center cooling terminal 10 to cool the data center. After the temperature of the cold water is increased, it is sent back to the cold storage tank 180.

[0041] In winter mode, the third stop valve 90 and the fourth stop valve 110 are closed, and the first stop valve 70, the second stop valve 80, the fifth stop valve 120 and the sixth stop valve 130 are opened. The cold water stored in the cold storage tank 180 enters the refrigeration side of the heat pump 30 through the cold storage tank circulation pump 190 to provide circulation power, and returns to the cold storage tank 180 after the heat pump is cooled. The temperature of the cold water in the cold storage tank 180 is at the set value.

[0042] Example 3

[0043] S1: In the second use system, the third stop valve 90 and the fourth stop valve 110 are closed, and the first stop valve 70, the second stop valve 80, the fifth stop valve 120, and the sixth stop valve 130 are opened. The cold water stored in the cold storage tank 180 enters the refrigeration side of the heat pump 30 with circulation power provided by the cold storage tank circulation pump 190, and is sent back to the cold storage tank 180 after being cooled by the heat pump, so as to maintain the temperature of the cold water in the cold storage tank 180 at the set value;

[0044] S2: The cold water provided by the cold water circulation pump 20 is continuously sent from the cold storage tank 180 to the data center cooling terminal 10 to cool the data center. After the cold water temperature is increased, it is sent back to the cold storage tank 180 to ensure the cooling demand of the data center. The cold water provided by the underground heat exchange circulation pump 1020 is continuously sent from the cold storage tank 180 to the underground heat exchange pipe 60. The underground heat exchange pipe 60 absorbs heat from the surrounding soil environment. After the cold water temperature is increased, it is sent back to the cold storage tank 180.

[0045] S3: The hot water provided with circulation power by the hot water circulation pump 40 enters the heating side of the heat pump 30, and after being heated by the heat pump 30, is sent to the heating terminal 50 to provide heat for the user. After the temperature of the hot water decreases, it returns to the hot water circulation pump 40 to complete the heating cycle;

[0046] When used in summer, the following steps are included:

[0047] S1: Close the first stop valve 70, the second stop valve 80, the fifth stop valve 120, and the sixth stop valve 130, and open the third stop valve 90 and the fourth stop valve 10. The cold water stored in the cold storage tank 180 enters the refrigeration side of the heat pump 30 with circulation power provided by the cold storage tank circulation pump 190, and is sent back to the cold storage tank 180 after being cooled by the heat pump, so as to maintain the temperature of the cold water in the cold storage tank 180 at the set value;

[0048] S2: The cold water provided by the cold water circulation pump 20 is continuously sent from the cold storage tank 180 to the data center cooling terminal 10 to cool the data center. After the cold water temperature is increased, it is sent back to the cold storage tank 180 to meet the cooling needs of the data center.

[0049] S3: The hot water provided with circulation power by the hot water circulation pump 40 enters the heating side of the heat pump 30, and after being heated by the heat pump, is sent to the underground heat exchange pipe 60, and the heat is dissipated to the surrounding soil environment through the underground heat exchange pipe 60. After the temperature of the hot water is reduced, it returns to the hot water circulation pump 40, completing the heating cycle;

[0050] When using in transition season, the following steps are included:

[0051] S1: Close the third stop valve 90, the fourth stop valve 110, the fifth stop valve 120, and the sixth stop valve 130, and open the first stop valve 70 and the second stop valve 80. The cold water provided by the underground heat exchange circulation pump 1020 is continuously sent from the cold storage tank 180 to the underground heat exchange pipe 60, and the heat is dissipated to the surrounding soil environment through the underground heat exchange pipe 60. After the temperature of the cold water is reduced, it is sent back to the cold storage tank 180, and the temperature of the cold water in the position cold storage tank 180 is at the set value;

[0052] S2: The cold water provided with circulation power by the cold water circulation pump 20 is continuously sent from the cold storage tank 180 to the data center cooling terminal 10 to cool the data center. After the temperature of the cold water is increased, it is sent back to the cold storage tank 180.

[0053] Solution 1 can realize the operation mode of combined cooling and heating throughout the year.

[0054] Example 2

[0055] See also Figure 2 A second method for using a data center cooling and heating combined supply system, characterized in that when used in winter, the method comprises the following steps:

[0056] S1: close the first stop valve 70, the second stop valve 80, the third stop valve 90, and the fourth stop valve 110, and open the fifth stop valve 120, the sixth stop valve 130, the seventh stop valve 140, the eighth stop valve 150, the ninth stop valve 160, and the tenth stop valve 170;

[0057] S2: The cold water provided with circulation power by the cold water circulation pump 20 enters the cooling side of the heat pump 30. After being cooled by the heat pump 30, it is divided into two branches. The first cold water branch is sent to the cooling terminal 10 of the data center to cool the data center. After the temperature of the cold water is increased, it merges with the second cold water branch after the temperature is increased, and then returns to the cold water circulation pump 20; the second cold water branch is sent to the underground heat exchange pipe 60, and absorbs heat from the surrounding soil environment through the underground heat exchange pipe 60. After the temperature of the cold water is increased, it merges with the first cold water branch after the temperature is increased, and returns to the cold water circulation pump 20 together to complete the refrigeration cycle;

[0058] S3: The hot water provided with circulation power by the hot water circulation pump 40 enters the heating side of the heat pump 30, and after being heated by the heat pump 30, is sent to the heating terminal 50 to provide heat for the user. After the temperature of the hot water decreases, it returns to the hot water circulation pump 40 to complete the heating cycle;

[0059] When used in summer, the following steps are included:

[0060] S1: close the first stop valve 70, the second stop valve 80, the fifth stop valve 120, the sixth stop valve 130, the seventh stop valve 140, and the eighth stop valve 150, and open the third stop valve 90, the fourth stop valve 110, the ninth stop valve 160, and the tenth stop valve 170;

[0061] S2: The cold water provided with circulation power by the cold water circulation pump 20 enters the cooling side of the heat pump 30, and after being cooled by the heat pump 30, is sent to the data center cooling terminal 10 to cool the data center. After the temperature of the cold water is increased, it returns to the cold water circulation pump 20 to complete the refrigeration cycle;

[0062] S3: The hot water provided with circulation power by the hot water circulation pump 40 enters the heating side of the heat pump 30, and after being heated by the heat pump 30, is sent to the underground heat exchange pipe 60, and the heat is dissipated to the surrounding soil environment through the underground heat exchange pipe 60. After the temperature of the hot water is reduced, it returns to the hot water circulation pump 40, completing the heating cycle;

[0063] Transition season use includes the following steps:

[0064] S1: close the third stop valve 90, the fourth stop valve 110, the fifth stop valve 120, the sixth stop valve 130, the seventh stop valve 140, the eighth stop valve 150, the ninth stop valve 160, and the tenth stop valve 170, and open the first stop valve 70 and the second stop valve 80;

[0065] S2: The cold water provided with circulation power by the cold water circulation pump 20 is directly sent to the underground heat exchange pipe 60, and the heat is dissipated to the surrounding soil environment through the underground heat exchange pipe 60. After the temperature of the cold water is reduced, it is sent to the cooling terminal 10 of the data center to cool the data center. After the temperature of the cold water is increased, it returns to the cold water circulation pump 20 to complete the refrigeration cycle. Scheme 2 can realize the operation mode without turning on the heat pump 30 during the transition season.

[0066] Solution 2 can realize an operation mode without starting the heat pump 30 during the transition season.

[0067] Example 3

[0068] See also Figure 3 A third method for using a data center cooling and heating combined supply system is characterized in that when used in winter, it includes the following steps:

[0069] S1: Close the third stop valve 90 and the fourth stop valve 110, and open the first stop valve 70, the second stop valve 80, the fifth stop valve 120, and the sixth stop valve 130. The cold water provided with circulation power by the cold water circulation pump 20 enters the refrigeration side of the heat pump 30, and after being cooled by the heat pump, it is divided into two branches, wherein the first cold water branch is sent to the data center cooling terminal 10 to cool the data center. After the cold water is heated up, it merges with the heated second cold water branch and then returns to the cold water circulation pump 20;

[0070] S2: The second cold water branch is sent to the underground heat exchange pipe 60, and absorbs heat from the surrounding soil environment through the underground heat exchange pipe 60. After the temperature of the cold water is increased, it merges with the first cold water branch after the temperature is increased, and returns to the cold water circulation pump 20 together to complete the refrigeration cycle;

[0071] S3: The hot water provided with circulation power by the hot water circulation pump 40 enters the heating side of the heat pump 30, and after being heated by the heat pump, is sent to the heating terminal 50 to provide heat for the user. After the temperature of the hot water decreases, it returns to the hot water circulation pump 40 to complete the heating cycle;

[0072] When used in summer and transitional seasons, the following steps are included:

[0073] S1: Close the first stop valve 70, the second stop valve 80, the fifth stop valve 120, and the sixth stop valve 130, and open the third stop valve 90 and the fourth stop valve 110. The cold water provided with circulation power by the cold water circulation pump 20 enters the refrigeration side of the heat pump 30, and after being cooled by the heat pump, is sent to the data center cooling terminal 10 to cool the data center. After the temperature of the cold water is increased, it returns to the cold water circulation pump 20 to complete the refrigeration cycle;

[0074] S2: Close the first stop valve 70, the second stop valve 80, the fifth stop valve 120, and the sixth stop valve 130, and open the third stop valve 90 and the fourth stop valve 110. The cold water provided with circulation power by the cold water circulation pump 20 enters the refrigeration side of the heat pump 30, and after being cooled by the heat pump, is sent to the data center cooling terminal 10 to cool the data center. After the cold water is heated up, it returns to the cold water circulation pump 20 to complete the refrigeration cycle.

[0075] S3: The hot water provided with circulation power by the hot water circulation pump 40 enters the heating side of the heat pump 30, and after being heated by the heat pump, is sent to the underground heat exchange pipe 60, and the heat is dissipated to the surrounding soil environment through the underground heat exchange pipe 60. After the temperature of the hot water drops, it returns to the hot water circulation pump 40 to complete the heating cycle.

[0076] Option three can realize the operation mode of combined heating and cooling throughout the year.

[0077] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0078] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A data center cooling and heating system, comprising a data center cooling terminal (10) and an underground heat exchange pipe (60), wherein the data center cooling terminal (10) is installed on one side outside the underground heat exchange pipe (60), and a cold storage tank (180) is provided between the data center cooling terminal (10) and the underground heat exchange pipe (60); It is characterized in that Also includes: A heat pump (30) is installed on one side outside the cold storage tank (180), a cold storage tank circulation pump (190) is provided between the heat pump (30) and the cold storage tank (180), and a heating terminal (50) is provided on one side outside the heat pump (30).

2. A data center cooling and heating system according to claim 1, characterized in that: The data center cooling terminal (10) and the cold storage tank (180) are connected via a first pipeline, a cold water circulation pump (20) is provided in the middle of the first pipeline, the cold storage tank (180) and the underground heat exchange pipe (60) are connected via a second pipeline, a first stop valve (70) and a second stop valve (80) are provided on the second pipeline, and an underground heat exchange circulation pump (1020) is provided in front of the first stop valve (70).

3. A data center cooling and heating system according to claim 2, characterized in that: The cold storage tank (180) and the heat pump (30) are connected via a third pipe, a cold storage tank circulation pump (190) is arranged at a middle position of the third pipe, the heat pump (30) and the heating terminal (50) are connected via a fourth pipe, a fifth stop valve (102) and a sixth stop valve (130) are arranged at a middle position of the fourth pipe, and a hot water circulation pump (40) is arranged in front of the sixth stop valve (130).

4. A data center cooling and heating system according to claim 3, characterized in that: A fifth pipeline is provided between the fourth pipeline and the second pipeline, and a third stop valve (90) and a fourth stop valve (110) are provided at a middle position of the fifth pipeline.

5. A data center cooling and heating system according to claim 4, characterized in that: The data center combined cooling and heating system includes a first usage system and a second usage system, and both the first usage system and the second usage system have a winter mode, a summer mode and a transitional season mode.

6. A data center cooling and heating system according to claim 5, characterized in that: In the winter mode of the first use system, the third stop valve (90) and the fourth stop valve (110) are closed, and the first stop valve (70), the second stop valve (80), the fifth stop valve (120) and the sixth stop valve (130) are opened. The cold water stored in the cold storage tank (180) enters the refrigeration side of the heat pump (30) through the cold storage tank circulation pump (190) to provide circulation power, and after the heat pump cools down, it returns to the cold storage tank (180). The temperature of the cold water in the cold storage tank (180) is at a set value.

7. A data center cooling and heating system according to claim 6, characterized in that: The cold water circulation pump (20) provides cold water for circulation power, and is sent from the cold storage tank (180) to the data center cooling terminal (10), and then sent back to the cold storage tank (180). The underground heat exchange circulation pump (1020) provides cold water for circulation power, and is continuously sent from the cold storage tank (180) to the underground heat exchange pipe (60). The underground heat exchange pipe (60) absorbs heat from the surrounding soil environment, and after the cold water is heated up, it is sent back to the cold storage tank (180). The hot water circulation pump (40) provides hot water for circulation power to enter the heating side of the heat pump (30). After the heat pump (30) is heated up, it is sent to the heating terminal (50). After the temperature of the hot water is reduced, it returns to the hot water circulation pump (40).

8. The data center combined cooling and heating system according to claim 8, characterized in that: The summer mode closes the first stop valve (70), the second stop valve (80), the fifth stop valve (120) and the sixth stop valve (130), and opens the third stop valve (90) and the fourth stop valve (10). The cold water stored in the cold storage tank (180) enters the refrigeration side of the heat pump (30) through the cold storage tank circulation pump (190) to provide circulation power. The heat pump (30) sends the cold water back to the cold storage tank (180) after cooling, and maintains the temperature of the cold water in the cold storage tank (180) at a set value. The cold water circulation pump (20) provides cold water for circulation power and continuously sends the cold water from the cold storage tank (180) to the data center cooling terminal (10) to cool the data center. After the temperature of the cold water increases, the cold water is sent back to the cold storage tank (180).

9. A data center cooling and heating system according to claim 8, characterized in that: The hot water circulation pump (40) provides circulation power for hot water to enter the heating side of the heat pump (30), and after the heat pump (30) heats up, the hot water is sent to the underground heat exchange pipe (60), and the underground heat exchange pipe (60) dissipates the heat to the surrounding soil environment, and after the hot water temperature is reduced, it returns to the hot water circulation pump (40).

10. A data center cooling and heating system according to claim 9, characterized in that: In the transition season, the third stop valve (90), the fourth stop valve (110), the fifth stop valve (120) and the sixth stop valve (130) are closed, and the first stop valve (70) and the second stop valve (80) are opened. The underground heat exchange circulation pump (1020) provides cold water for circulation power and continuously delivers the cold water from the cold storage tank (180) to the underground heat exchange pipe (60). After the cold water temperature is reduced by dissipating heat to the surrounding soil environment through the underground heat exchange pipe (60), it is returned to the cold storage tank (180). The temperature of the cold water in the cold storage tank (180) is at a set value. The cold water circulation pump (20) provides cold water for circulation power and continuously delivers the cold water from the cold storage tank (180) to the data center cooling terminal (10) to cool the data center. After the temperature of the cold water is increased, it is returned to the cold storage tank (180).

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