Cooling and heating combined supply system of data center

Abstract

The utility model discloses a combined cooling and heating system for a data center, relates to the technical field of energy consumption of the data center, and aims to solve the problem of high energy consumption of the conventional 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 utility model relates to data center energy consumption technical field, concretely is a data center combined cooling heating system. BACKGROUND

[0002] In recent years, China's data centers have developed rapidly. The number of racks in data centers across the country has reached 3.2 million, and the number of data centers has exceeded 74,000, accounting for 23% of the global total. While developing rapidly, the high energy consumption of data centers has become a prominent problem. In terms of energy consumption growth rate, the power consumption of China's data centers has grown by more than 12% for eight consecutive years, significantly higher than the overall electricity consumption growth level.

[0003] For example, the patent with the announcement number CN206310792U, China's authorized patent name is (a data center combined cooling heating system), which includes a solar absorption auxiliary cooling system, a liquid cooling system, a liquid cooling heat recovery auxiliary heating system, and a control system. The control system is used to control the switching of the operation mode of the solar absorption auxiliary cooling system, the liquid cooling system, and the liquid cooling heat recovery auxiliary heating system. The utility model utilizes the good complementarity of solar absorption refrigeration technology and liquid cooling technology, recovers the liquid cooling heat through the liquid cooling heat recovery auxiliary heating system to assist the solar air conditioning system, overcomes the problem of high economic cost caused by the need for auxiliary energy such as electricity and chemical energy for heating in traditional solar air conditioning systems, reduces the waste of data center heat discharged into the atmosphere, and promotes the practical application of solar refrigeration technology and liquid cooling technology in data centers.

[0004] At the same time, in the existing 40 billion square meters of urban and rural buildings in China, the fuel for heating is mainly coal and natural gas, and the annual carbon dioxide emissions exceed 2 billion tons. The current situation of high energy consumption, low efficiency, and high cost, therefore, building heating energy saving has become the top priority of China's energy saving work. Compared with traditional building heating technology, the heat pump heating system emits the least carbon dioxide per unit of heating capacity, and heat pump technology is the most effective way to achieve the double carbon goal. At the same time, heat pump is the key path to realize the electrification of heating equipment.

[0005] The factors affecting the energy consumption of the refrigeration system include the heat generation of various equipment, the heat transfer of building enclosure equipment, the heat transfer of fresh air system, solar radiation heat, system energy efficiency ratio, air flow 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 goal of carbon peak and carbon neutralization, the high energy consumption problem of data centers 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. Therefore, we provide a data center combined cooling heating system. UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose lies in providing a kind of data center cold heat supply system to solve the high energy consumption problem of existing data center in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of data center cold heat supply system, including data center cooling end and underground heat exchange pipe, the data center cooling end is installed at the one side outside underground heat exchange pipe, data center cooling end and underground heat exchange pipe between being provided with cold storage tank;

[0008] Further comprising:

[0009] Heat pump, it is installed at the one side outside the cold storage tank, heat pump and cold storage tank between being provided with cold storage tank circulating pump, the one side outside heat pump is provided with heating end.

[0010] Preferably, the data center cooling end and the cold storage tank are connected by a first pipeline, a cold water circulating pump is arranged at the middle position 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 a underground heat exchange circulating 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 pipeline, a cold storage tank circulating pump is arranged at the middle position of the third pipeline, the heat pump and the heating end are connected by a fourth pipeline, a fifth stop valve and a sixth stop valve are arranged at the middle position of the fourth pipeline, and a hot water circulating pump is arranged in front of the sixth stop valve.

[0012] Preferably, the fourth pipeline and the second pipeline are connected by a fifth pipeline, a third stop valve and a fourth stop valve are arranged at the middle position of the fifth pipeline.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The system design scheme of the utility model realizes the efficient cold heat supply energy system of data center, can meet the heating demand of surrounding users at the same time under the condition of guaranteeing refrigeration demand.

[0015] The system design scheme solves the soil heat balance problem brought by conventional ground source heat pump system when applied in heating field. Conventional ground source heat pump heating system cannot balance cold and heat in a year due to single operation mode of energy supply, and long-term operation will lead to heat loss of underground soil layer, temperature decreases year by year, so that the system cannot be operated stably for a long time. The system design scheme has the function of heat supplement, so that the cold and heat in soil can reach balanced state.

[0016] The system design scheme can realize the refrigeration mode using the natural cold source under the condition that the environment permits, and greatly reduces the refrigeration energy consumption of the data center. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a first use method structure schematic view of the utility model;

[0018] Figure 2 It is a second use method structure schematic view of the utility model;

[0019] Figure 3 It is a third use method structure schematic view of the utility model;

[0020] In the figure: 10, data center cooling end; 20, cold water circulating pump; 30, heat pump; 40, hot water circulating pump; 50, heat supply end; 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 circulating pump; 1020, underground heat exchange circulating pump. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] Embodiment 1

[0023] Please refer to Figures 1-3 The utility model provides an embodiment: a data center combined cooling heating system, including data center cooling end 10 and underground heat exchange pipe 60, data center cooling end 10 installs in one side outside underground heat exchange pipe 60, is provided with cold storage tank 180 between data center cooling end 10 and underground heat exchange pipe 60;

[0024] Still include:

[0025] Heat pump 30, it is installed in one side outside cold storage tank 180, is provided with cold storage tank circulating pump 190 between heat pump 30 and cold storage tank 180, one side outside heat pump 30 is provided with heat supply end 50.

[0026] Please refer to the figure, the data center cooling end 10 and the cold storage tank 180 are connected by a first pipeline, a cold water circulating pump 20 is arranged at the middle position of the first pipeline, the cold storage tank 180 and the underground heat exchange pipe 60 are connected by a second pipeline, a first stop valve 70 and a second stop valve 80 are arranged on the second pipeline, and a underground heat exchange circulating pump 1020 is arranged in front of the first stop valve 70.

[0027] Please refer to Figure 1 , the cold storage tank 180 and the heat pump 30 are connected by a third pipeline, a cold storage tank circulating pump 190 is arranged at the middle position of the third pipeline, the heat pump 30 and the heat supply end 50 are connected by a fourth pipeline, a fifth stop valve 120 and a sixth stop valve 130 are arranged at the middle position of the fourth pipeline, a hot water circulating 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, a third stop valve 90 and a fourth stop valve 110 are arranged at the middle position of the fifth pipeline, and a first use method of the data center combined cooling and heating system is characterized in that, in winter, the following steps are included:

[0028] S1: close the third stop valve 90 and the fourth stop valve 110, 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 stored in the cold storage tank 180 is provided with circulating power by the cold storage tank circulating pump 190 and enters the refrigeration side of the heat pump 30, after being cooled by the heat pump, it is sent back to the cold storage tank 180, so that the temperature of the cold water in the cold storage tank 180 is maintained at a set value;

[0029] S2: the cold water provided with circulating power by the cold water circulating pump 20 is continuously sent from the cold storage tank 180 to the data center cooling end 10 to cool the data center, after the temperature of the cold water rises, it is sent back to the cold storage tank 180 to ensure the cooling demand of the data center, and the cold water provided with circulating power by the underground heat exchange circulating pump 1020 is continuously sent from the cold storage tank 180 to the underground heat exchange pipe 60, absorbs heat from the surrounding soil environment through the underground heat exchange pipe 60, and after the temperature of the cold water rises, it is sent back to the cold storage tank 180;

[0030] S3: hot water provided with circulating power by the hot water circulating pump 40 enters the heating side of the heat pump 30, after being heated by the heat pump 30, it is sent to the heat supply end 50 to provide heat for users, after the temperature of the hot water decreases, it returns to the hot water circulating pump 40 to complete the heating cycle;

[0031] In summer, the following steps are included:

[0032] S1: close the first stop valve 70, the second stop valve 80, the fifth stop valve 120 and the sixth stop valve 130, open the third stop valve 90 and the fourth stop valve 110, the cold water stored in the cold storage tank 180 is circulated by the cold water circulating pump 20 into the refrigeration side of the heat pump 30, and after being cooled by the heat pump, is sent back to the cold storage tank 180 to maintain the temperature of the cold water in the cold storage tank 180 at a set value;

[0033] S2: the cold water circulated by the cold water circulating pump 20 is continuously sent from the cold storage tank 180 to the data center cooling terminal 10 to cool the data center, and after the temperature of the cold water rises, is sent back to the cold storage tank 180 to ensure the cooling demand of the data center;

[0034] S3: the hot water circulated by the hot water circulating 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 to dissipate heat to the surrounding soil environment through the underground heat exchange pipe 60, and after the temperature of the hot water decreases, is returned to the hot water circulating pump 40 to complete the heating cycle;

[0035] In the excessive season, the following steps are included:

[0036] S1: close the third stop valve 90, the fourth stop valve 110, the fifth stop valve 120 and the sixth stop valve 130, open the first stop valve 70 and the second stop valve 80, and the cold water circulated by the underground heat exchange circulating pump 1020 is continuously sent from the cold storage tank 180 to the underground heat exchange pipe 60 to dissipate heat to the surrounding soil environment through the underground heat exchange pipe 60, and after the temperature of the cold water decreases, is sent back to the cold storage tank 180 to maintain the temperature of the cold water in the cold storage tank 180 at a set value;

[0037] S2: the cold water circulated by the cold water circulating pump 20 is continuously sent from the cold storage tank 180 to the data center cooling terminal 10 to cool the data center, and after the temperature of the cold water rises, is sent back to the cold storage tank 180.

[0038] The first scheme can realize the operation mode of all-year cold and heat supply.

[0039] Embodiment 2

[0040] Please refer to Figure 2 A second use method of the data center cold and heat supply system, characterized in that in winter, the following steps are included:

[0041] S1: close the first stop valve 70, the second stop valve 80, the third stop valve 90 and the fourth stop valve 110, 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;

[0042] S2: The cold water, which is circulated by the cold water circulating pump 20, enters the refrigeration side of the heat pump 30, is cooled by the heat pump 30, and is divided into two branches. The first cold water branch is sent to the data center cooling terminal 10 to cool the data center. The cold water, after being heated, is combined with the second cold water branch, which is also heated, and then returns to the cold water circulating pump 20. The second cold water branch is sent to the underground heat exchange pipe 60 to absorb heat from the surrounding soil environment. The cold water, after being heated, is combined with the first cold water branch, which is also heated, and then returns to the cold water circulating pump 20, completing the refrigeration cycle.

[0043] S3: The hot water, which is circulated by the hot water circulating pump 40, enters the heating side of the heat pump 30, is heated by the heat pump 30, and is sent to the heating terminal 50 to provide heat for users. The hot water, after being cooled, returns to the hot water circulating pump 40, completing the heating cycle.

[0044] In summer, the following steps are included:

[0045] 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. Open the third stop valve 90, the fourth stop valve 110, the ninth stop valve 160, and the tenth stop valve 170.

[0046] S2: The cold water, which is circulated by the cold water circulating pump 20, enters the refrigeration side of the heat pump 30, is cooled by the heat pump 30, and is sent to the data center cooling terminal 10 to cool the data center. The cold water, after being heated, returns to the cold water circulating pump 20, completing the refrigeration cycle.

[0047] S3: The hot water, which is circulated by the hot water circulating pump 40, enters the heating side of the heat pump 30, is heated by the heat pump 30, and is sent to the underground heat exchange pipe 60 to dissipate heat to the surrounding soil environment. The hot water, after being cooled, returns to the hot water circulating pump 40, completing the heating cycle.

[0048] In the transition season, the following steps are included:

[0049] 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. Open the first stop valve 70 and the second stop valve 80.

[0050] S2: The cold water provided with circulating power by the cold water circulating pump 20 is directly sent into the underground heat exchange pipe 60, heat is dissipated to the surrounding soil environment through the underground heat exchange pipe 60, the cold water is reduced in temperature, is sent into the data center cooling terminal 10 to cool the data center, the cold water is increased in temperature, and is returned to the cold water circulating pump 20 to complete the refrigeration cycle. The scheme two can realize the operation mode without starting the heat pump 30 in the excessive season.

[0051] The scheme two can realize the operation mode without starting the heat pump 30 in the excessive season.

[0052] Embodiment 3

[0053] Please refer to Figure 3 A third use method of the data center cold and heat combined supply system, characterized in that, in winter, the following steps are included:

[0054] S1: The third stop valve 90 and the fourth stop valve 110 are closed, 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 provided with circulating power by the cold water circulating pump 20 enters the refrigeration side of the heat pump 30, is cooled by the heat pump, is divided into two branches, the first cold water branch is sent into the data center cooling terminal 10 to cool the data center, the cold water is increased in temperature, is combined with the second cold water branch which is increased in temperature, and is returned to the cold water circulating pump 20;

[0055] S2: The second cold water branch is sent into the underground heat exchange pipe 60, absorbs heat in the surrounding soil environment through the underground heat exchange pipe 60, the cold water is increased in temperature, is combined with the first cold water branch which is increased in temperature, and is returned to the cold water circulating pump 20 together to complete the refrigeration cycle;

[0056] S3: The hot water provided with circulating power by the hot water circulating pump 40 enters the heating side of the heat pump 30, is increased in temperature by the heat pump, is sent into the heat supply terminal 50 to provide heat for users, is reduced in temperature, and is returned to the hot water circulating pump 40 to complete the heating cycle;

[0057] In summer and the excessive season, the following steps are included:

[0058] S1: The first stop valve 70, the second stop valve 80, the fifth stop valve 120 and the sixth stop valve 130 are closed, the third stop valve 90 and the fourth stop valve 110 are opened, the cold water provided with circulating power by the cold water circulating pump 20 enters the refrigeration side of the heat pump 30, is cooled by the heat pump, is sent into the data center cooling terminal 10 to cool the data center, is increased in temperature, and is returned to the cold water circulating pump 20 to complete the refrigeration cycle;

[0059] S2: close the first stop valve 70, the second stop valve 80, the fifth stop valve 120, the sixth stop valve 130, open the third stop valve 90, the fourth stop valve 110, the cold water circulating pump 20 provides circulating power, the cold water enters the refrigeration side of the heat pump 30, after being cooled by the heat pump, is sent to the data center cooling terminal 10, the data center is cooled, the cold water is returned to the cold water circulating pump 20, and the refrigeration cycle is completed;

[0060] S3: the hot water circulating pump 40 provides circulating power, the hot water enters the heating side of the heat pump 30, after being heated by the heat pump, is sent to the underground heat exchange pipe 60, heat is dissipated to the surrounding soil environment through the underground heat exchange pipe 60, and the hot water is returned to the hot water circulating pump 40, and the heating cycle is completed.

[0061] The third scheme can realize the operation mode of all-year cold and heat supply.

[0062] In the embodiments provided in the present application, it should be understood that the disclosed device and method can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division, and there can be another division manner in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some communication interfaces, devices or units, and can be electrical, mechanical or other forms.

[0063] Finally, it should be noted that: the above-described embodiments are only specific embodiments of the present application, used to explain the technical solutions of the present application, and not to limit them. The protection scope of the present application is not limited to this. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art within the technical range disclosed by the present application can modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to some technical features; and these modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A data center combined cooling and heating system, comprising a data center cooling terminal (10) and an underground heat exchange pipe (60), the data center cooling terminal (10) being installed on one side outside the underground heat exchange pipe (60), and a cold storage tank (180) being arranged between the data center cooling terminal (10) and the underground heat exchange pipe (60). characterized in that Further comprising: a heat pump (30) installed on one side outside the cold storage tank (180), a cold storage tank circulating pump (190) being arranged between the heat pump (30) and the cold storage tank (180), and a heating terminal (50) being arranged on one side outside the heat pump (30).

2. The data center combined cooling heating and power system of claim 1, wherein: The data center cooling terminal (10) and the cold storage tank (180) are connected through a first pipe, a cold water circulating pump (20) being arranged at a middle position of the first pipe, the cold storage tank (180) and the underground heat exchange pipe (60) are connected through a second pipe, a first stop valve (70) and a second stop valve (80) being arranged on the second pipe, and an underground heat exchange circulating pump (1020) being arranged in front of the first stop valve (70).

3. The data center combined cooling heating and power system of claim 2, wherein: The cold storage tank (180) and the heat pump (30) are connected through a third pipe, a cold storage tank circulating pump (190) being arranged at a middle position of the third pipe, the heat pump (30) and the heating terminal (50) are connected through a fourth pipe, a fifth stop valve (120) and a sixth stop valve (130) being arranged at a middle position of the fourth pipe, and a hot water circulating pump (40) being arranged in front of the sixth stop valve (130).

4. The data center combined cooling heating and power system of claim 3, wherein: The fourth pipe and the second pipe are connected through a fifth pipe, a third stop valve (90) and a fourth stop valve (110) being arranged at a middle position of the fifth pipe.

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