Cooling capacity distribution unit system with deionization bypass

Abstract

The utility model discloses a cooling capacity distribution unit system with a deionization bypass, which comprises a CDU and a load device which form a circulation loop, the deionization bypass is formed between a front pipeline and a rear pipeline of the load device, and the deionization bypass comprises a flowmeter and a deionization tank which are sequentially connected through pipelines; an inlet of the flowmeter is connected with a front pipeline, and an outlet of the deionization tank is connected with a rear pipeline. Through the arrangement of the deionization bypass, part of water flow of the circulation loop can be controlled to enter the deionization bypass through the flowmeter, the part of water flow is subjected to anion and cation exchange through the deionization tank, and the water flow subjected to ion exchange continues to enter the circulation loop, so that the deionization effect is improved. The cooling water in the circulation loop continuously keeps part of the cooling water to be subjected to corresponding ion exchange treatment, so that the cooling water in the circulation loop can keep normal conductivity for a long time, the service cycle of the cooling water in the circulation loop is prolonged, and the frequency of shutdown water change is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation equipment, and particularly relates to a cold quantity distribution unit system with a deionized bypass. Background Art

[0002] With the exponential growth of data and computing power, a large amount of computing power requires a huge number of servers to support. The massive data operations make the data center, which serves as the "brain" of emerging technologies such as artificial intelligence and big data, face unprecedented energy consumption and heat dissipation challenges. To address these challenges, CDU (Cooling Distribution Unit) has gradually become a hot technology in the data center industry.

[0003] A Cooling Distribution Unit (CDU) is a human management device based on liquid cooling technology. Its core function is to transfer the heat generated in the data center to the cooling medium, and then dissipate the cooling medium through the cooling system.

[0004] Specifically, the liquid-cooled CDU device transports the cooling medium to the load devices that need to be cooled, such as IT heating devices like servers and memories, through a series of pipelines and pumps. When the cooling medium flows through these devices, it directly contacts the heat source, absorbs and takes away the generated heat. Subsequently, the warm cooling medium is transported to the heat exchanger for heat dissipation treatment, and then returns to the cooling medium supply system through the pipeline, forming a cyclic heat dissipation process.

[0005] Among them, the commonly used cooling medium is pure water. However, due to the operation of the equipment, the conductivity of the pure water in the pipeline will increase, which will cause impurities to appear in the pipeline, thereby affecting the water flow and ultimately causing harm to the equipment. This requires changing the water in the entire system every week. The water-changing process must be stopped and waited for. After changing the water, it is necessary to check whether the conductivity reaches the acceptable range, and then turn on the machine, which will seriously affect the normal operation of the equipment. Therefore, how to extend the service life of the cooling medium or reduce the downtime for water change is particularly important. Content of the Utility Model

[0006] To solve the above technical problems, the present utility model provides a cooling capacity distribution unit system with a deionization bypass, which includes a CDU and a load device forming a circulation loop. A deionization bypass is formed between the front pipeline and the rear pipeline of the load device. The deionization bypass includes a flow meter and a deionization tank connected in sequence through pipelines. Among them, the inlet of the flow meter is connected to the front pipeline, and the outlet of the deionization tank is connected to the rear pipeline. By setting the deionization bypass, part of the water flow in the circulation loop can be controlled by the flow meter to enter the deionization bypass. In the deionization bypass, this part of the water flow undergoes cation and anion exchange through the deionization tank, and the water flow after ion exchange continues to enter the circulation loop. Thus, part of the cooling water in the circulation loop can continuously undergo corresponding ion exchange treatment, enabling the cooling water in the circulation loop to maintain a normal conductivity for a long time, extending the service life of the cooling water in the circulation loop, and reducing the frequency of shutdown for water replacement.

[0007] In one embodiment, a first switch is provided on the pipeline between the flow meter and the front pipeline.

[0008] In one embodiment, an inlet filter is provided on the pipeline between the flow meter and the deionization tank.

[0009] In one embodiment, an outlet filter is provided on the pipeline between the deionization tank and the rear pipeline.

[0010] In one embodiment, a first one-way valve is provided on the pipeline between the first switch and the flow meter.

[0011] In one embodiment, a second switch is provided on the pipeline between the outlet filter and the rear pipeline.

[0012] In one embodiment, a second one-way valve is provided on the pipeline between the second switch and the outlet filter.

[0013] In one embodiment, a conductivity meter is further provided on the rear pipeline, and the conductivity meter is connected to an alarm device. By setting the alarm device, when the conductivity of the cooling water in the circulation loop reaches a preset value, it can remind the operator to perform subsequent adjustment work, such as replacing the deionization tank or the cation and anion resins in the deionization tank.

[0014] By setting one-way valves, the backflow of water can be prevented; by setting filters, impurities in the cooling water can be filtered; by setting switches, it is convenient to shut down the pipeline for maintenance.

[0015] In one embodiment, an auxiliary deionization bypass is formed between the inlet pipeline and the outlet pipeline of the deionization tank. The auxiliary deionization bypass includes a third switch, an auxiliary deionization tank, and a fourth switch that are sequentially connected by pipelines. The inlet of the third switch is connected to the inlet pipeline, and the outlet of the fourth switch is connected to the outlet pipeline. It also includes a fifth switch and a sixth switch arranged before and after the deionization tank. By setting up the auxiliary deionization bypass, the service life of the cooling water can be basically ensured to be infinitely extended. When the conductivity sensor alarms, the inlet and outlet of the deionization tank can be closed through the switches, and the inlet and outlet of the auxiliary deionization tank can be opened, so that the auxiliary deionization tank replaces the deionization tank to perform cation and anion exchange on part of the cooling water, ensuring the normal operation of the circulation loop.

[0016] In one embodiment, the connection point of the inlet of the third switch is located on the pipeline between the inlet filter and the fifth switch; the connection point of the outlet of the fourth switch is located on the pipeline between the sixth switch and the outlet filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the following will briefly introduce the drawings required for the specific embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of a cooling capacity distribution unit system of the present invention;

[0019] Figure 2 is a schematic structural diagram of another cooling capacity distribution unit system of the present invention;

[0020] The reference numerals in the drawings are represented as: 1 - CDU; 2 - load equipment; 3 - front pipeline; 4 - rear pipeline; 5 - flowmeter; 6 - deionization tank; 7 - first switch; 8 - inlet filter; 9 - outlet filter; 10 - first check valve; 11 - second switch; 12 - second check valve; 13 - conductivity measuring instrument; 15 - inlet pipeline; 16 - outlet pipeline; 17 - third switch; 18 - auxiliary deionization tank; 19 - fourth switch; 20 - fifth switch; 21 - sixth switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following clearly and completely describes the content of the present utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, other embodiments obtained by those of ordinary skill in the art without creative efforts all fall within the scope of protection of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] Embodiment 1

[0026] As Figure 1 shown, this embodiment discloses a cold quantity distribution unit system with a deionized bypass, including a CDU1 and a load device 2 that form a circulation loop. The load device 2 is not specifically limited, such as IT heating devices like servers and memories. A deionized bypass is formed between the front pipeline 3 and the rear pipeline 4 of the load device 2. The front pipeline 3 and the rear pipeline 4 are preferably the total pipelines before and after the load device 2. The deionized bypass includes a flow meter 5 and a deionization tank 6 connected in sequence through pipelines. The flow meter 5 is used to measure the flow rate in the deionized bypass, and is not specifically limited. A float flow meter is preferred. The deionization tank 6 performs cation and anion exchange on the cooling water in the deionized bypass to ensure that the conductivity of the cooling water is within the normal range. Of course, it can also be called an ion exchanger. The specific principle is as follows: By using the ion exchange method, the cations and anions in the water in ionic state can be removed. Taking sodium chloride (NaCl) as a representative of inorganic salts in the water, the basic reaction of desalination in the water can be expressed by the following equation:

[0027] Cation exchange resin: R—H + Na + → R-Na + H +

[0028] Anion exchange resin: R—OH + Cl - → R-Cl + OH -

[0029] It can be seen from this that the NaCl in the water has been replaced by H + and OH - on the resin respectively, and the reaction product is only H 2 0, and the treated water will flow back to the circulation loop again, and so on, always keeping the conductivity of the pure water in the pipeline within the normal range. Specifically, the inlet of the flow meter 5 is connected to the front pipeline 3, and the outlet of the deionization tank 6 is connected to the rear pipeline.

[0030] In one embodiment, a first switch 7 is provided on the pipeline between the flow meter 5 and the front pipeline 3, an inlet filter 8 is provided on the pipeline between the flow meter 5 and the deionization tank 6, and the inlet filter 8 is used to filter the cooling water before entering the deionization tank 6. An outlet filter 9 is also provided on the pipeline between the deionization tank 6 and the rear pipeline 4, and the outlet filter 9 is used to filter the impurities and bacteria in the liquid flowing through the deionization tank 6.

[0031] In one embodiment, a first one-way valve 10 is provided on the pipeline between the first switch 7 and the flow meter 5 to prevent the liquid in the pipeline from flowing back; a second switch 11 is provided on the pipeline between the outlet filter 9 and the rear pipeline 4.

[0032] There is no limitation on the specific selection of the first switch 7 and the second switch 11. For example, a ball valve is used to control the bypass flow rate and regulate maintenance.

[0033] In one embodiment, a second one-way valve 12 is provided on the pipeline between the second switch 11 and the outlet filter 9 to prevent the liquid in the pipeline from flowing back.

[0034] A conductivity measuring instrument 13 is provided on the rear pipeline 4 to monitor the conductivity of the cooling water in the circulation loop at any time. The conductivity measuring instrument is also connected to an alarm device, which emits an alarm signal when the measured conductivity is abnormal.

[0035] The usage process of this embodiment is as follows: By controlling the first switch 7 and the second switch 11, part of the cooling water enters the deionization bypass for deionization, and then enters the circulation loop and circulates in turn to ensure that the conductivity in the circulation loop is always within the normal range. Regarding the above-mentioned cold water shortage, the corresponding flow rate should be set through the flow meter and continuously enter the deionization bypass, with the best being no more than 10% of the total flow rate.

[0036] Embodiment 2

[0037] As Figure 2 shown, this embodiment discloses a cold quantity distribution unit system with a deionization bypass, which is a further design based on Embodiment 1, specifically as follows: It further includes an auxiliary deionization bypass formed between the inlet pipeline 15 and the outlet pipeline 16 of the deionization tank 6. The auxiliary deionization bypass can replace the deionization bypass in cases such as maintenance and resin replacement to remove ions in part of the cooling water in the circulation loop to ensure the normal operation of the circulation loop. Of course, the functions of the two can be interchanged to achieve more functions in various cases. The auxiliary deionization bypass includes a third switch 17, an auxiliary deionization tank 18, and a fourth switch 19 connected in sequence through pipelines. Among them, the inlet of the third switch 17 is connected to the inlet pipeline 15, and the outlet of the fourth switch 19 is connected to the outlet pipeline 16; it also includes a fifth switch 20 and a sixth switch 21 arranged before and after the deionization tank 6. The connection at the inlet of the third switch 17 is located on the pipeline between the inlet filter 8 and the fifth switch 20; the connection at the outlet of the fourth switch 19 is located on the pipeline between the sixth switch 21 and the outlet filter 9.

[0038] There is no limitation on the specific selection of the third switch, the fourth switch, the fifth switch, and the sixth switch. For example, a ball valve can be used for control, regulation, maintenance, etc.

[0039] The usage process of this embodiment is as follows: On the basis of the usage in Embodiment 1, when the conductivity in the circulation loop is at an abnormal value, or when it is necessary to replace the cation and anion resins in the ion tank, or for other reasons that cause the deionization tank to need to be repaired or replaced, etc., at this time, close the fifth switch and the sixth switch, open the third switch and the fourth switch, and let part of the cooling water enter the auxiliary deionization tank for deionization to ensure the normal operation of the circulation loop.

[0040] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A cold distribution unit system with a deionization bypass, characterized in that: It includes a CDU and a load device that form a circulation loop, a deionization bypass is formed between the front pipeline and the rear pipeline of the load device, and the deionization bypass includes a flow meter and a deionization tank that are connected in sequence through pipelines; wherein the inlet of the flow meter is connected to the front pipeline, and the outlet of the deionization tank is connected to the rear pipeline.

2. The cooling capacity distribution unit system according to claim 1, characterized in that: A first switch is arranged on the pipeline between the flow meter and the front pipeline.

3. The cooling capacity distribution unit system according to claim 2, characterized in that: An inlet filter is arranged on the pipeline between the flow meter and the deionization tank.

4. The cooling capacity distribution unit system according to claim 3, characterized in that: An outlet filter is arranged on the pipeline between the deionization tank and the rear pipeline.

5. The cooling capacity distribution unit system according to claim 4, characterized in that: A first one-way valve is arranged on the pipeline between the first switch and the flow meter.

6. The cooling capacity distribution unit system according to claim 5, characterized in that: A second switch is arranged on the pipeline between the outlet filter and the rear pipeline.

7. The cooling capacity distribution unit system according to claim 6, characterized in that: A second one-way valve is arranged on the pipeline between the second switch and the outlet filter.

8. The cooling capacity distribution unit system according to claim 1, characterized in that: The rear pipeline is also provided with a conductivity meter, and the conductivity meter is connected with an alarm device.

9. The cooling capacity distribution unit system according to claim 7, characterized in that: An auxiliary deionization bypass is formed between the inlet pipeline and the outlet pipeline of the deionization tank, and the auxiliary deionization bypass includes a third switch, an auxiliary deionization tank and a fourth switch which are sequentially connected through pipelines, wherein the inlet of the third switch is connected to the inlet pipeline, and the outlet of the fourth switch is connected to the outlet pipeline; and also includes a fifth switch and a sixth switch which are arranged before and after the deionization tank.

10. The cooling capacity distribution unit system according to claim 9, characterized in that: The connection point of the inlet of the third switch is located on the pipeline between the inlet filter and the fifth switch; the connection point of the outlet of the fourth switch is located on the pipeline between the sixth switch and the outlet filter.

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