Data center liquid cooling heat exchanger

Abstract

The utility model discloses a data center liquid cooling heat exchanger, which relates to the technical field of heat exchangers, and comprises an auxiliary water tank, a first seal head body is arranged on one side of the auxiliary water tank, a heat exchange core body is arranged above the auxiliary water tank, side plates are arranged on two sides of the heat exchange core body, and a connecting support is arranged at one end of each side plate. The other end of the connecting support is connected with the auxiliary water tank, a plurality of inner fins and outer fins are arranged between the side plates, partition plates are arranged between the inner fins and the outer fins, and the inner fins and the outer fins are evenly distributed between the side plates. A third sealing head body is arranged at the top of the heat exchange core body, a lifting lug plate is arranged between the heat exchange core body and the third sealing head body, and a second sealing head body is arranged on the same side of the heat exchange core body. According to the liquid cooling heat exchanger for the data center, the fins serve as secondary heat exchange area extension, the specific surface area of the heat exchanger is greatly increased, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a liquid-cooled heat exchanger for a data center. Background Art

[0002] Liquid cooling is a heat dissipation technology that uses liquid to cool electronic devices, which can significantly improve the heat dissipation efficiency of the data center. According to the different contact methods between the coolant and the heat-generating device, liquid cooling technology can be divided into indirect liquid cooling and direct liquid cooling. Among them, indirect liquid cooling mainly includes cold plate liquid cooling, and direct liquid cooling includes immersion liquid cooling and spray liquid cooling. Cold plate liquid cooling and immersion liquid cooling are the current mainstream liquid cooling forms. Cold plate liquid cooling is the most widely used, with advantages in retrofit cost, maintainability, and compatibility; immersion liquid cooling has the best cooling effect and obvious advantages in energy conservation, but its maintainability and compatibility are average, and it is mostly used in high-power density cabinets.

[0003] In the field of applying liquid cooling technology in national large data centers, as a coolant, fluorinated liquid exchanges heat with the electronic components of the data center in gaseous and liquid forms, providing protection for the use environment and lifespan of the components. If the temperature of the electronic components is too high, faults such as low working efficiency and short lifespan may occur, and they may also stop working, affecting data transmission. Therefore, a cooling circulation system, that is, a heat exchanger, is needed. And in order to respond to the national energy conservation and emission reduction policy, the total cost of ownership (TCO) of the data center is the key factor for the large-scale application of liquid cooling technology. The liquid cooling solution can effectively reduce the energy consumption level of the cooling system, thereby reducing the overall power usage effectiveness (PUE) of the data center to about 1.05 - 1.2, meeting the relevant policy requirements.

[0004] Currently, traditional stainless steel plate heat exchangers are used. Although they are more durable, they are heavy, large in volume, low in heat transfer efficiency, inconvenient for connecting various pipelines, and have a high cost.

[0005] Therefore, a liquid-cooled heat exchanger for a data center is provided, which has good durability, light weight, low noise, simple, fast, and convenient installation, small floor area, no pollution in the production process, high cleanliness, and high economic benefits. Summary of the Utility Model

[0006] Therefore, the purpose of the utility model is to provide a liquid-cooled heat exchanger for a data center to solve the problems raised in the above background art.

[0007] To solve the above technical problems, the present utility model provides the following technical solutions: A liquid-cooled heat exchanger for a data center, which includes an auxiliary water tank. A first head body is provided on one side of the auxiliary water tank. A heat exchange core is provided above the auxiliary water tank. Side plates are provided on both sides of the heat exchange core. A connecting support is provided at one end of the side plate, and the other end of the connecting support is connected to the auxiliary water tank. A plurality of inner fins and outer fins are provided between the side plates. A partition is provided between the inner fins and the outer fins. The inner fins and the outer fins are evenly distributed between the side plates. A third head body is provided at the top of the heat exchange core. A lifting lug plate is provided between the heat exchange core and the third head body. A second head body is provided on the same side of the heat exchange core.

[0008] As a preferred solution of the liquid-cooled heat exchanger for a data center described in the present utility model, wherein: First seals are provided on both sides of the inner fins, and second seals are provided on both sides of the outer fins.

[0009] As a preferred solution of the liquid-cooled heat exchanger for a data center described in the present utility model, wherein: A pair of water outlets are provided at the bottom on one side of the auxiliary water tank. A liquid level detection port is provided above the water outlets. A first temperature and pressure detection joint is provided beside the lower part of the auxiliary water tank. A second temperature and pressure detection joint is provided on one side of the first temperature and pressure detection joint.

[0010] As a preferred solution of the liquid-cooled heat exchanger for a data center described in the present utility model, wherein: A water outlet pipe is provided on one side of the second head body. A pair of water inlet pipes are provided on the same side of the first head body as the water outlet pipe.

[0011] As a preferred solution of the liquid-cooled heat exchanger for a data center described in the present utility model, wherein: The third head body is semi-circular. An air inlet pipe is provided at the top end of the third head body. A pair of second temperature and pressure detection joints are provided on one side of the third head body.

[0012] As a preferred solution of the liquid-cooled heat exchanger for a data center described in the present utility model, wherein: The auxiliary water tank, the first head body, the heat exchange core, the second head body and the third head body are correspondingly connected.

[0013] The beneficial effects of the present utility model:

[0014] The present utility model provides a liquid-cooled heat exchanger for a data center. The fins are used as an extension of the secondary heat exchange area, greatly increasing the specific surface area of the heat exchanger. Under the same heat exchange area, the weight and volume are reduced by 30-40% compared with traditional large heat exchangers, which is convenient for transportation and installation, and saves space at the same time. The fins have a flow disturbance effect in the fluid flow state, greatly enhancing the heat exchange efficiency. Description of the Drawings

[0015] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0016] Figure 1 It is the front view of a liquid-cooled heat exchanger for a data center of the present utility model;

[0017] Figure 2 It is the right view of a liquid-cooled heat exchanger for a data center of the present utility model;

[0018] Figure 3 It is the structural schematic diagram of the heat exchange core of a liquid-cooled heat exchanger for a data center of the present utility model;

[0019] Figure 4 It is the partial explosion of the heat exchange core of a liquid-cooled heat exchanger for a data center of the present utility model Figure 1 ;

[0020] Figure 5 It is the partial explosion of the heat exchange core of a liquid-cooled heat exchanger for a data center of the present utility model Figure 2 .

[0021] Explanation of reference numerals:

[0022] 1, auxiliary water tank; 11, water outlet; 12, liquid level detection port; 13, first temperature and pressure detection joint; 14, exhaust joint; 2, first head body; 3, connecting support; 4, heat exchange core; 41, first seal strip; 42, inner fin; 43, partition board; 44, second seal strip; 45, outer fin; 46, side plate; 5, lifting lug plate; 6, second head body; 61, water outlet pipe; 62, water inlet pipe; 7, third head body; 71, air inlet pipe; 72, second temperature and pressure detection joint. Specific embodiments

[0023] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will give a detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings of the specification.

[0024] Refer to Figures 1-5, a liquid-cooled heat exchanger for a data center provided by the present utility model. This liquid-cooled heat exchanger for a data center includes an auxiliary water tank 1. A first head body 2 is arranged on one side of the auxiliary water tank 1. A heat exchange core 4 is arranged above the auxiliary water tank 1. Side plates 46 are arranged on both sides of the heat exchange core 4. One end of the side plate 46 is provided with a connecting support 3, and the other end of the connecting support 3 is connected to the auxiliary water tank 1. A plurality of inner fins 42 and outer fins 45 are arranged between the side plates 46. A partition plate 43 is arranged between the inner fins 42 and the outer fins 45. The inner fins 42 and the outer fins 45 are evenly distributed between the side plates 46. A third head body 7 is arranged on the top of the heat exchange core 4. A lifting lug plate 5 is arranged between the heat exchange core 4 and the third head body 7. A second head body 6 is arranged on the same side of the heat exchange core 4.

[0025] Specifically, there are rib plates in the auxiliary water tank 1, which divide the inside of the auxiliary water tank 1 into upper and lower layers. The inner fins 42 and the outer fins 45 are arranged in a 180° reverse arrangement. The heat exchange core 4 is respectively connected to the first head body 2, the second head body 6, the third head body 7 and the auxiliary water tank 1. 30% antifreeze in the outer fins 45 of the heat exchange core 4 and the fluorinated liquid in the inner fins 42 form forced countercurrent heat exchange to cool the fluorinated liquid medium coming out of the data center components. The connecting support 3 is used for fixing the whole cooler.

[0026] First seals 41 are arranged on both sides of the inner fins 42, and second seals 44 are arranged on both sides of the outer fins 45.

[0027] Specifically, the curved sides of the other two sides of the inner fins 42 and the outer fins 45 are open to the outside, and forced convection of the liquid between the inner fins 42 and the outer fins 45 is carried out.

[0028] A pair of water outlets 11 are arranged at the bottom on one side of the auxiliary water tank 1. A liquid level detection port 12 is arranged above the water outlets 11. A first temperature and pressure detection joint 13 is arranged beside the lower part of the auxiliary water tank 1. An exhaust joint 14 is arranged on one side of the first temperature and pressure detection joint 13.

[0029] Specifically, the two water outlets 11 on the auxiliary water tank 1 communicate with each other and can be used as a backup.

[0030] A water outlet pipe 61 is arranged on one side of the second head body 6. A pair of water inlet pipes 62 are arranged on the first head body 2 on the same side as the water outlet pipe 61.

[0031] Specifically, a circulation is formed in the heat exchange core 4 through the water outlet pipe 61 and the water inlet pipes 62.

[0032] The third head body 7 is semicircular. An air inlet pipe 71 is arranged at the top end of the third head body 7. A pair of second temperature and pressure detection joints 72 are arranged on one side of the third head body 7.

[0033] Specifically, an exhaust pipe with an exhaust valve is arranged on the third head body 7.

[0034] The auxiliary water tank 1, the first end body 2, the heat exchange core 4, the second end body 6 and the third end body 7 are connected correspondingly.

[0035] Specifically, heat exchange is formed between the liquids.

[0036] During use, the 30% antifreeze liquid passes through the medium of the data center, and the fluorinated liquid takes away the heat generated by the components when they are working, and flows into the channel of the fin 42 inside the heat exchange core 4 through the air inlet pipe 71 and the water outlet pipe 61 respectively, and performs forced convection with the ethylene glycol solution of the outer fin 45, so that the heat transferred by the fluorinated liquid is taken away by the ethylene glycol solution, achieving the cooling effect. The partition in the auxiliary water tank 1 divides the internal volume into two layers, and when the coolant expands due to heat, the expanded coolant can be stored inside the auxiliary water tank 1 without being lost or consumed. The fins in the channel not only increase the secondary heat exchange area, but more importantly, promote turbulence and improve the heat transfer coefficient.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A liquid-cooled heat exchanger for a data center, characterized in that: It includes an auxiliary water tank (1). A first head body (2) is arranged on one side of the auxiliary water tank (1). A heat exchange core (4) is arranged above the auxiliary water tank (1). Side plates (46) are arranged on both sides of the heat exchange core (4). One end of each side plate (46) is provided with a connecting support (3), and the other end of the connecting support (3) is connected to the auxiliary water tank (1). A plurality of inner fins (42) and outer fins (45) are arranged between the side plates (46). A partition plate (43) is arranged between the inner fins (42) and the outer fins (45). The inner fins (42) and the outer fins (45) are evenly distributed between the side plates (46). A third head body (7) is arranged at the top of the heat exchange core (4). A lifting lug plate (5) is arranged between the heat exchange core (4) and the third head body (7). A second head body (6) is arranged on the same side of the heat exchange core (4).

2. The liquid-cooled heat exchanger for a data center according to claim 1, characterized in that: First seals (41) are arranged on both sides of the inner fins (42), and second seals (44) are arranged on both sides of the outer fins (45).

3. The liquid-cooled heat exchanger for a data center according to claim 2, wherein: A pair of water outlets (11) are arranged at the bottom on one side of the auxiliary water tank (1). A liquid level detection port (12) is arranged above the water outlets (11). A first temperature and pressure detection joint (13) is arranged beside the lower part of the auxiliary water tank (1). An exhaust joint (14) is arranged on one side of the first temperature and pressure detection joint (13).

4. The liquid-cooled heat exchanger for a data center according to claim 3, wherein: A water outlet pipe (61) is arranged on one side of the second head body (6). A pair of water inlet pipes (62) are arranged on the same side of the first head body (2) as the water outlet pipe (61).

5. The liquid-cooled heat exchanger for a data center according to claim 4, characterized in that: The third head body (7) is semi-circular. An air inlet pipe (71) is arranged at the top end of the third head body (7). A pair of second temperature and pressure detection joints (72) are arranged on one side of the third head body (7).

6. The liquid-cooled heat exchanger for a data center according to claim 5, characterized in that: The auxiliary water tank (1), the first head body (2), the heat exchange core (4), the second head body (6) and the third head body (7) are correspondingly connected and communicated.

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