Liquid state detection device and CDU cooling liquid state detection system
By setting detection interfaces on the CDU's interfaces and pipes to connect detection sensors, the problems of high labor costs and coolant loss in rack-mounted CDU coolant condition detection are solved, enabling online real-time detection of coolant condition and low-cost maintenance.
Patent Information
- Application Number
- CN202520279767.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In the existing technology, the coolant status detection of rack-mounted CDUs requires manual drainage, which leads to high labor costs, leakage risk, coolant reduction and loss of cooling capacity. In addition, the detection sensor needs to be removed from the CDU for maintenance, which affects the cooling capacity supply.
Design a liquid state detection device. By setting a detection interface on the connecting pipe of the first interface and the second interface, a detection sensor is connected to achieve independent detection and maintenance, avoiding manual discharge of coolant, reducing maintenance costs, and independently setting a sensor in the CDU to prevent the loss of coolant.
It enables online real-time monitoring of coolant status, reduces maintenance costs, avoids leaks, coolant loss and cooling capacity loss, and improves the safety and reliability of monitoring.
Smart Images
Figure CN223910833U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of refrigeration, in particular to a liquid state detection device and a CDU cooling liquid state detection system. BACKGROUND
[0002] Liquid cooling has become the best way to improve the cooling capacity of data centers. With the long-term application of large-scale liquid-cooled data centers, the requirements for server-side cooling liquid are becoming higher and higher.
[0003] At present, for rack-mounted cooling dispensing units (CDUs), the conventional cooling liquid state detection is usually performed by manually discharging and extracting cooling liquid. This method has the following problems: on the one hand, the labor cost is high, there is a risk of liquid leakage and liquid spraying, and the cooling liquid will be reduced, so it needs to be regularly replenished; on the other hand, due to the characteristics of the detection sensor, it needs to be frequently maintained and calibrated, and the detection sensor is usually built in the CDU through a slide rail. When maintaining, the rack-mounted CDU needs to be pulled out, resulting in loss of cooling capacity. Practical new type content
[0004] The present application provides a liquid state detection device and a CDU cooling liquid state detection system to reduce the maintenance cost of the detection sensor and avoid problems such as liquid leakage, liquid spraying, cooling liquid reduction, and cooling capacity loss.
[0005] In a first aspect, the present application provides a liquid state detection device, comprising: a shell, a detection sensor, and a first interface and a second interface arranged on the shell.
[0006] The first interface is connected to the second interface through a pipeline arranged inside the shell, a detection interface is arranged on the pipeline, and the detection sensor is connected to the detection interface.
[0007] The above device sets a detection interface on the connecting pipeline of the first interface and the second interface, and the detection interface is connected to the detection sensor. In this way, when the first interface and the second interface are connected to the device to be detected (for example, a rack-mounted CDU), and liquid flows through the connecting pipeline of the first interface and the second interface, the detection sensor can detect the state of the liquid flowing through the pipeline. Compared with the liquid state detection method of manually discharging and extracting cooling liquid in the related art, the liquid state detection device is independently arranged with the CDU. On the one hand, the detection sensor can be maintained independently without pulling out the rack-mounted CDU, thereby avoiding the problem of loss of cooling capacity. On the other hand, the liquid state detection device does not need to manually discharge and extract cooling liquid, thereby reducing the maintenance cost and avoiding problems such as liquid leakage, liquid spraying, and cooling liquid reduction.
[0008] In a possible implementation, the device further comprises a third interface connected with the detection sensor, configured to transmit the detection value of the detection sensor to other equipment.
[0009] In the device, the detection value of the detection sensor can be transmitted to other equipment (for example, a rack-mounted CDU) in real time through the third interface, so as to realize online real-time detection of the liquid state.
[0010] In a possible implementation, the first interface comprises a safety valve or a quick interface, and the second interface comprises a safety valve or a quick interface.
[0011] In a possible implementation, the detection sensor comprises any one of a pH value sensor, a conductivity sensor, and a turbidity sensor.
[0012] In a second aspect, the embodiments of the present application provide a CDU cooling liquid state detection system, comprising the liquid state detection device provided in the first aspect of the embodiments of the present application and a CDU, wherein,
[0013] The CDU is provided with a first maintenance interface and a second maintenance interface, the first maintenance interface and the second maintenance interface are connected with the first interface and the second interface of the liquid state detection device respectively, and the first maintenance interface and the second maintenance interface are arranged at two ends of an internal pump of the CDU respectively.
[0014] In the system, the first interface and the second interface of the liquid state detection device are connected with the first maintenance interface and the second maintenance interface of the CDU respectively, and the first maintenance interface and the second maintenance interface are arranged at two ends of an internal pump of the CDU respectively. In this case, there is a pressure difference between the first interface and the second interface, and cooling liquid flows in the connecting pipeline of the first interface and the second interface, so that the detection sensor can detect the state of the cooling liquid flowing in the pipeline. Compared with the liquid state detection mode of manually discharging and extracting cooling liquid in the related art, the liquid state detection device is independently arranged with the CDU. On the one hand, the detection sensor can be maintained independently without pulling out the rack-mounted CDU, so that the problem of cold loss is avoided. On the other hand, the cooling liquid does not need to be manually discharged and extracted, so that the maintenance cost is reduced, and the problems of liquid leakage, liquid spraying, and cooling liquid reduction are avoided.
[0015] In a possible implementation, the third interface of the liquid state detection device is connected with a main control board of the CDU.
[0016] In the system, the third interface of the liquid state detection device is connected with the main control board of the CDU, so that the detection value of the detection sensor can be transmitted to the CDU in real time, and online real-time detection of the cooling liquid state is realized.
[0017] In one possible implementation, the first maintenance interface comprises a needle valve or a quick interface.
[0018] In one possible implementation, the second maintenance interface comprises a needle valve or a quick interface.
[0019] In one possible implementation, the first maintenance interface is arranged between the pump and a supply liquid pressure sensor inside the CDU, and the second maintenance interface is arranged between the pump and a plate heat exchanger inside the CDU.
[0020] In one possible implementation, the first maintenance interface is arranged between the pump and a supply liquid pressure sensor inside the CDU, and the second maintenance interface is arranged between a return liquid pressure sensor inside the CDU and a plate heat exchanger inside the CDU. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.
[0022] Figure 1 The structural schematic diagram of the liquid state detection device provided by the embodiment of the present application is shown in the figure.
[0023] Figure 2 The structural schematic diagram of the liquid state detection device provided by the embodiment of the present application is shown in the figure.
[0024] Figure 3 The structural schematic diagram of the CDU cooling liquid state detection system provided by the embodiment of the present application is shown in the figure.
[0025] Figure 4 The structural schematic diagram of the CDU cooling liquid state detection system provided by the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will combine the drawings to further describe the present application in detail. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort are within the protection scope of the present application.
[0027] In the description of the embodiments of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B; "and / or" in the text only describes the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent: A alone, A and B exist at the same time, and B alone, in addition, in the description of the embodiments of the present application, "multiple" means two or more than two.
[0028] Hereinafter, the terms "first", "second" are only for descriptive purposes, and cannot be understood as implying or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.
[0029] Before introducing the liquid state detection device and CDU cooling liquid state detection system provided by the embodiments of the present application, in order to facilitate understanding, first, the technical background of the embodiments of the present application is introduced in detail.
[0030] Liquid cooling has become the best way to improve the cooling capacity of data centers, and with the long-term application of large-scale liquid cooling data centers, the requirements for server-side cooling liquid are becoming higher and higher.
[0031] At present, for rack-mounted CDU, the conventional cooling liquid state detection adopts the manual discharge extraction of cooling liquid, which on the one hand has high labor cost, has the risk of liquid leakage and liquid injection, and also causes the cooling liquid to be reduced, and needs to be regularly supplemented; on the other hand, due to the characteristics of the detection sensor, it needs to be frequently maintained and calibrated, and the detection sensor is usually built-in in the CDU through the slide rail, which needs to be pulled out when maintaining, resulting in loss of cooling capacity.
[0032] In view of this, the embodiments of the present application provide a liquid state detection device and a CDU cooling liquid state detection system, by setting a detection interface on the connecting pipeline of the first interface and the second interface, and the detection interface is connected with a detection sensor, so that when the first interface and the second interface are connected with a rack-mounted CDU, and liquid flows in the connecting pipeline of the first interface and the second interface, the detection sensor can detect the state of the liquid flowing in the pipeline. The liquid state detection device and the CDU are independently arranged, on the one hand, the detection sensor can be maintained separately, without pulling out the rack-mounted CDU, avoiding the problem of loss of cooling capacity, on the other hand, without manual discharge extraction of cooling liquid, reducing the maintenance cost, and avoiding the problems of liquid leakage, liquid injection, cooling liquid reduction, etc.
[0033] It should be noted that the rack-mounted CDU mentioned in the embodiments of the present application has a built-in plate heat exchanger, a pump, a flow meter, a liquid supply pressure sensor, a liquid return pressure sensor, etc., and its primary side is connected with a cooling tower, and its secondary side is connected with a liquid cooling equipment (or load).
[0034] After introducing the background of the embodiments of the present application, the liquid state detection device provided by the embodiments of the present application will be described in detail first in combination with specific embodiments.
[0035] Referring to Figure 1 , which is a structural schematic diagram of the liquid state detection device in the embodiments of the present application, including a shell 11, a detection sensor 12, and a first interface 13 and a second interface 14 arranged on the shell.
[0036] The first interface 13 is connected to the second interface 14 through a pipeline 15 arranged inside the shell 11, the pipeline 15 is provided with a detection interface 16, and the detection sensor 12 is connected to the detection interface 16.
[0037] In the liquid state detection device provided by the embodiments of the present application, the detection interface 16 is arranged on the connecting pipeline 15 between the first interface 13 and the second interface 14, and the detection interface 16 is connected to the detection sensor 12. In this way, when the first interface and the second interface are connected to the device to be detected (for example, a rack-mounted CDU), and there is a pressure difference between the first interface and the second interface, liquid will flow through the pipeline 15, and the detection sensor 12 can detect the state of the liquid flowing through the pipeline 15.
[0038] In actual application, the detection interface 16 can be provided with threads, and is connected to the detection sensor 12 in a face seal manner.
[0039] In specific implementation, the liquid state detection device provided by the embodiments of the present application further includes a third interface 17 connected to the detection sensor 12, for transmitting the detection value of the detection sensor 12 to other devices. The other devices can be control devices or monitoring devices that need to use the detection value, and the embodiments of the present application do not limit this.
[0040] It should be noted that in other embodiments of the present application, the detection value of the detection sensor 12 can also be transmitted to other devices in a wireless transmission manner.
[0041] In specific implementation, the first interface can be a safety valve or a quick interface, and the second interface can be a safety valve or a quick interface. The detection sensor includes any one of the following: a PH value sensor, a conductivity sensor, and a turbidity sensor.
[0042] In specific implementation, the first interface 13, the second interface 14, and the pipeline 15 can be placed in a transverse manner, as shown in Figure 1 In other embodiments of the present application, as shown in Figure 2 , the first interface 13, the second interface 14, and the pipeline 15 can also be placed in a longitudinal manner to adapt to different installation environments.
[0043] After introducing the liquid state detection device provided by the embodiments of the present application, the CDU cooling liquid state detection system provided by the embodiments of the present application is described in detail.
[0044] As shown in Figure 3 The CDU cooling liquid state detection system provided by the embodiments of the present application includes the liquid state detection device 30 provided by the embodiments of the present application and a CDU 31.
[0045] The CDU 31 is provided with a first maintenance interface 310 and a second maintenance interface 311, and the first maintenance interface 310 and the second maintenance interface 311 are respectively connected with the first interface and the second interface of the liquid state detection device 30. The first maintenance interface 310 and the second maintenance interface 311 are respectively arranged at two ends of an internal pump 312 of the CDU 31.
[0046] In specific implementation, the first maintenance interface 310 and the second maintenance interface 311 are respectively arranged at two ends of the internal pump 312 of the CDU 31. When the pump 312 is running, there is a pressure difference between the inlet and the outlet of the pump. The cooling liquid in the CDU 31 will flow from the outlet to the inlet of the pump 312 through the pipeline in the liquid state detection device 30. In this case, the detection sensor in the liquid state detection device 30 can detect the state of the cooling liquid flowing through the pipeline.
[0047] In actual application, the first maintenance interface 310 and the second maintenance interface 311 can be reserved on the back of the CDU 31, so that the exhaust function and the liquid discharge function of the CDU 31 can be realized.
[0048] In specific implementation, the first maintenance interface 310 can be arranged between the pump 312 and the liquid supply pressure sensor (or flow meter) inside the CDU 31, so as to ensure that the liquid supply pressure and the liquid supply flow are not affected by the liquid state detection device. The second maintenance interface 311 can be arranged between the pump 312 and the plate heat exchanger inside the CDU 31. Of course, as shown in Figure 4 The second maintenance interface 311 can also be arranged between the liquid return pressure sensor inside the CDU 31 and the plate heat exchanger inside the CDU 31.
[0049] In specific implementation, the third interface of the liquid state detection device 30 is connected with the main control board of the CDU 31, so as to upload the detection value of the detection sensor to the CDU 31 in real time, and realize online real-time detection of the state of the cooling liquid.
[0050] In actual application, the first maintenance interface 310 can be a needle valve or a quick interface; the second maintenance interface 311 can be a needle valve or a quick interface. It should be noted that the first maintenance interface 310 and the second maintenance interface 311 are connected with the first interface and the second interface in the liquid state detection device 30, and the two need to be matched to facilitate the connection of the two.
[0051] For example, if the first maintenance interface 310 and the second maintenance interface 311 adopt a needle valve structure, the first interface and the second interface in the liquid state detection device 30 can adopt a safety valve structure; of course, if the first maintenance interface 310 and the second maintenance interface 311 adopt a quick interface structure, the first interface and the second interface in the liquid state detection device 30 also need to adopt a quick interface structure.
[0052] The embodiment of the present application provides a CDU cooling liquid state detection system, when the detection sensor needs to be maintained, the safety valve (quick interface) can be closed, and then the liquid state detection device is unloaded or the detection sensor is taken out for maintenance. The maintenance method has the following advantages: on the one hand, by closing the safety valve (quick interface), there is no risk of liquid leakage and liquid injection during maintenance, and the cooling liquid is not reduced, periodic liquid supplement is not needed, small-diameter pipelines are used, the CDU system flow and available head loss are small, on the other hand, the cooling liquid for detecting the cooling liquid state is the system circulating cooling liquid, and there is no case that the detection value cannot represent the server end cooling liquid state due to the cooling liquid dead cycle.
[0053] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and the equivalent technologies thereof, the present application also intends to include these modifications and variations.
Claims
1. A liquid state detection device characterized by comprising: 1) a liquid state detection unit which detects a liquid state of a liquid in a liquid chamber; and The device comprises: a housing, a detection sensor, and a first interface and a second interface arranged on the housing; the first interface is connected to the second interface through a pipe arranged inside the housing, and a detection interface is arranged on the pipe, and the detection sensor is connected to the detection interface.
2. The apparatus of claim 1, wherein, The device further comprises a third interface connected to the detection sensor, for transmitting the detection value of the detection sensor to other equipment.
3. The apparatus of claim 1, wherein, The first interface comprises a safety valve or a quick interface, and the second interface comprises a safety valve or a quick interface.
4. The apparatus of any one of claims 1-3, wherein, The detection sensor comprises any one of a pH sensor, a conductivity sensor, and a turbidity sensor.
5. A CDU coolant condition detection system characterized by, The device comprises: The liquid state detection device and the CDU according to any one of claims 1-4, wherein a first maintenance interface and a second maintenance interface are arranged on the CDU, the first maintenance interface and the second maintenance interface are respectively connected to the first interface and the second interface of the liquid state detection device, and the first maintenance interface and the second maintenance interface are respectively arranged at two ends of a pump inside the CDU.
6. The system of claim 5, wherein, The third interface of the liquid state detection device is connected to a main control board of the CDU.
7. The system of claim 5, wherein, The first maintenance interface comprises a needle valve or a quick interface.
8. The system of claim 5, wherein, The second maintenance interface comprises a needle valve or a quick interface.
9. The system of claim 5, wherein, The first maintenance interface is arranged between the pump and a liquid supply pressure sensor inside the CDU, and the second maintenance interface is arranged between the pump and a plate heat exchanger inside the CDU.
10. The system of claim 5, wherein, The first maintenance interface is arranged between the pump and a liquid supply pressure sensor inside the CDU, and the second maintenance interface is arranged between a liquid return pressure sensor inside the CDU and a plate heat exchanger inside the CDU.