Immersed liquid cooling server system monitoring system and method

Abstract

The invention discloses a monitoring system and method for an immersed liquid cooling server system, and belongs to the technical field of immersed servers. The first liquid level sensor and the second liquid level sensor are used for collecting liquid levels; the first temperature sensor and the second temperature sensor are used for collecting the temperature of the cooling liquid; the micro-control unit is used for conducting abnormity judgment based on data collected by the sensor, and the abnormity judgment includes the steps that when the second temperature is larger than an expected cooling threshold value determined based on the first temperature, heat exchange is judged to be abnormal, and when the total liquid level amount is smaller than a preset threshold value or the liquid level difference exceeds a difference threshold value, leakage or blockage is judged to exist. The liquid level sensor is additionally arranged, and the liquid level sensor and the temperature sensor are respectively arranged in the server cavity and the liquid storage device to respectively collect the liquid level and temperature data of the cooling liquid in the server cavity and the liquid storage device, so that the limitation of single data can be avoided, and the accuracy of a monitoring result can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of submerged server, in particular to a submerged liquid-cooled server system monitoring system and method. BACKGROUND

[0002] With the increasing demand for computing power in data centers, the heat dissipation problem brought by high-density servers is increasingly prominent. Traditional air cooling technology has been difficult to meet the demand for efficient heat dissipation, and submerged liquid cooling technology has gradually been favored due to its high-efficiency heat dissipation and energy-saving advantages.

[0003] However, unlike traditional air cooling technology, the heat generated by the server in the submerged liquid-cooled server is conducted to the outside through the cooling liquid, so the operation and maintenance process not only involves temperature monitoring, but also involves monitoring of the cooling liquid circulation part. However, the existing submerged liquid cooling system monitoring technology has the following problems:

[0004] Single monitoring parameter: the traditional scheme only relies on temperature sensors for local monitoring, lacks comprehensive monitoring of liquid level, flow rate and power, and is difficult to fully evaluate the system running state.

[0005] Data isolation: existing sensor data is independently collected, and a multi-dimensional data correlation analysis mechanism is not established, resulting in low accuracy of abnormality judgment.

[0006] Insufficient compatibility: the existing monitoring system needs to be deeply integrated with the server body, resulting in difficulty in adapting different manufacturers' equipment and high operation and maintenance cost.

[0007] The present application is used to solve the problem that the existing server running monitoring method cannot adapt to the running monitoring of liquid-cooled servers, resulting in high difficulty in operating and maintaining liquid-cooled servers. SUMMARY

[0008] In view of the above problems, the present application is proposed.

[0009] Therefore, the technical problem solved by the present application is: how to solve the problem that the existing server running monitoring method cannot adapt to the running monitoring of liquid-cooled servers, resulting in high difficulty in operating and maintaining liquid-cooled servers.

[0010] To solve the above technical problems, the application provides the following technical scheme: a submerged liquid cooling server system monitoring system, comprising the following steps: a micro control unit; a first liquid level sensor and a second liquid level sensor for collecting liquid levels; a first temperature sensor and a second temperature sensor for collecting temperatures of cooling liquid; the micro control unit is used for making an abnormality judgment based on data collected by the sensors, including judging heat exchange abnormality when the second temperature is greater than an expected temperature drop threshold value determined based on the first temperature, and judging that there is leakage or blockage when the total amount of liquid level is less than a preset threshold value or the liquid level difference exceeds a difference threshold value; the submerged liquid cooling server system comprises a submerged cabinet, the submerged cabinet comprises a server slot and a cooling liquid circulation system, and the cooling liquid circulation system is used for submerging a server body partially or entirely in cooling liquid.

[0011] As a preferred scheme of the submerged liquid cooling server system monitoring system, the submerged cabinet is provided with a server cavity, and the server slot is arranged in the server cavity, and the server slot is used for installing the server body, so that the server body is partially or entirely submerged in the cooling liquid in the server cavity during use.

[0012] As a preferred scheme of the submerged liquid cooling server system monitoring system, the cooling liquid circulation system comprises a liquid storage device, a pipeline subsystem and a heat exchange device; the liquid storage device is communicated with the server cavity through the pipeline subsystem, so as to realize circulation of the cooling liquid between the liquid storage device and the server cavity; and the heat exchange device is used for realizing heat exchange between the cooling liquid in the liquid storage device and the outside.

[0013] As a preferred scheme of the submerged liquid cooling server system monitoring system, the micro control unit is used for receiving monitoring data of the liquid level and temperature sensors, and judging the running state of the submerged liquid cooling server system based on the data.

[0014] As a preferred scheme of the submerged liquid cooling server system monitoring system, the first liquid level sensor is installed in the server cavity and used for collecting the liquid level in the server cavity; the second liquid level sensor is installed in the liquid storage device and used for collecting the liquid level in the liquid storage device; the first temperature sensor is installed in the server cavity and used for collecting the temperature of the cooling liquid in the server cavity; the first temperature sensor comprises a plurality of temperature probes, different temperature probes are arranged at different positions of the server cavity, and the actual temperature of the cooling liquid in the server cavity is determined based on temperatures at different positions; the second temperature sensor is installed in the liquid storage device and used for collecting the temperature of the cooling liquid in the liquid storage device; by arranging the liquid level sensors and the temperature sensors in the server cavity and the liquid storage device respectively, the liquid level and temperature data of the cooling liquid in the server cavity and the liquid storage device are collected respectively, and the limitation of single data is avoided.

[0015] A preferred scheme of the present application can help to avoid the limitation of single data, thereby improving the accuracy of monitoring results, by adding a liquid level sensor, and setting a liquid level sensor and a temperature sensor in the server cavity and the liquid storage device respectively to collect the liquid level and temperature data of the cooling liquid in the server cavity and the liquid storage device respectively.

[0016] As a preferred scheme of the immersion liquid cooling server system monitoring system, the first flow rate sensor is used to monitor the flow rate of the cooling liquid, and the first flow rate sensor is arranged at the liquid inlet or liquid outlet of the server cavity.

[0017] A preferred scheme of the present application realizes monitoring of the flow rate of the cooling liquid by adding a flow rate sensor.

[0018] As a preferred scheme of the immersion liquid cooling server system monitoring system, the power monitoring component is used to collect the power consumption of the server body, and the power monitoring component includes a current sensor, a voltage sensor and a data processing unit, the data processing unit is used to calculate the power consumption based on the current collected by the current sensor and the voltage collected by the voltage sensor.

[0019] A preferred scheme of the present application can monitor the number of server bodies used in the immersion liquid cooling server and the power of each server body by adding a power monitoring component arranged independently of the server body.

[0020] As a preferred scheme of the immersion liquid cooling server system monitoring system, the communication component is in signal connection with the micro control unit, and is used to upload the monitoring data to a cloud platform to realize remote operation and maintenance management and fault monitoring.

[0021] As a preferred scheme of the immersion liquid cooling server system monitoring system, the micro control unit determines an expected cooling threshold based on the temperature data collected by the first temperature sensor, and compares the expected cooling threshold with the temperature collected by the second temperature sensor to determine whether the heat exchange device is abnormal.

[0022] Another object of the present application is to provide a submerged liquid cooling server system monitoring method.

[0023] To solve the above technical problems, the present application provides the following technical solutions: a submerged liquid cooling server system monitoring method, comprising: monitoring a first temperature collected by a first temperature sensor to determine an expected cooling threshold; determining whether a second temperature collected by a second temperature sensor is greater than the expected cooling threshold based on the expected cooling threshold determined by the first temperature, and if the second temperature is greater than the expected cooling threshold, determining that the heat exchanger is abnormal; if the second temperature is not greater than the expected cooling threshold, estimating the total amount of cooling liquid in the server cavity and the liquid storage tank based on a first liquid level collected by a first liquid level sensor and a second liquid level collected by a second liquid level sensor; determining whether the total amount of cooling liquid is less than a preset total amount threshold, and if the total amount of cooling liquid is less than the preset total amount threshold, determining that the cooling liquid is leaking; if the total amount of cooling liquid is not less than the preset total amount threshold, determining whether the absolute value of the difference between the first liquid level and the second liquid level is greater than a preset difference threshold, and if the absolute value of the difference between the first liquid level and the second liquid level is greater than the preset difference threshold, determining that there is a blockage in the cooling liquid circulation.

[0024] The present application has the following advantages: by adding liquid level sensors and temperature sensors in the server cavity and the liquid storage device, the liquid level and temperature data of the cooling liquid in the server cavity and the liquid storage device can be collected, which can help to avoid the limitations of single data, and thus improve the accuracy of the monitoring results. By adding a flow rate sensor, the flow rate of the cooling liquid can be monitored. By adding a power monitoring component independent of the server body, the number of server bodies used in the submerged liquid cooling server and the power of each server body can be monitored. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed 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 creative labor.

[0026] Figure 1 An immersed liquid cooling server system scheme module diagram of an immersed liquid cooling server system monitoring system provided by an embodiment of the present application.

[0027] Figure 2 A temperature and liquid level sensor system connection diagram of an immersed liquid cooling server system monitoring system provided by an embodiment of the present application.

[0028] Figure 3A flow rate sensor system connection diagram of an immersion liquid cooling server system monitoring system provided by an embodiment of the present application.

[0029] Figure 4 A power monitoring component system connection diagram of an immersion liquid cooling server system monitoring system provided by an embodiment of the present application.

[0030] Figure 5 A general flow chart of an immersion liquid cooling server system monitoring method provided by an embodiment of the present application.

[0031] In the figure: 100, immersion cabinet; 101, server slot; 120, cooling liquid circulation system; 110, server cavity; 121, liquid storage device; 122, pipeline subsystem; 123, heat exchange device; 210, micro control unit, 221, first liquid level sensor; 222, second liquid level sensor; 231, first temperature sensor; 232, second temperature sensor; 241, first flow rate sensor; 242, second flow rate sensor; 250, power monitoring component. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0033] Embodiment 1, refer to Figure 1 and Figure 2 , the first embodiment of the present application, the embodiment provides an immersion liquid cooling server system monitoring system, comprising:

[0034] Micro control unit.

[0035] First liquid level sensor and second liquid level sensor for collecting liquid level.

[0036] First temperature sensor and second temperature sensor for collecting the temperature of the cooling liquid.

[0037] The micro control unit is used for abnormality judgment based on the data collected by the sensor, including judging heat exchange abnormality when the second temperature is greater than the expected cooling threshold determined based on the first temperature, and judging that there is leakage or blockage when the total amount of liquid level is less than a preset threshold or the liquid level difference exceeds a difference threshold.

[0038] The immersion liquid-cooled server system comprises an immersion cabinet, the immersion cabinet comprises a server slot and a cooling liquid circulating system for partially or wholly immersing the server body in the cooling liquid.

[0039] A micro control unit is configured to receive and process the data collected by the sensors and make abnormality judgments.

[0040] A first liquid level sensor and a second liquid level sensor are respectively installed in the server cavity and the liquid storage device to monitor the liquid level of the cooling liquid in real time.

[0041] A first temperature sensor and a second temperature sensor are respectively arranged in the server cavity and the liquid storage device to monitor the temperature of the cooling liquid in real time.

[0042] According to the liquid level and temperature data, the micro control unit makes abnormality judgments through an algorithm. When the second temperature is higher than an expected cooling threshold determined based on the first temperature, the system automatically determines that there is an abnormal heat exchange; when the liquid level of the cooling liquid is lower than a preset threshold or the liquid level difference exceeds a preset difference, the system determines that there may be a cooling liquid leakage or a cooling liquid circulation blockage.

[0043] The immersion liquid-cooled server system monitoring system described in the embodiment can synchronously monitor multiple important parameters such as the liquid level, temperature and flow rate of the immersion liquid-cooled server, and comprehensively analyze and make abnormality judgments on the sensor data by the micro control unit. The system not only can effectively prevent the server from being damaged due to abnormal cooling liquid, but also can provide accurate operation and maintenance guidance according to real-time data, greatly improving the operation and maintenance efficiency and reliability of the server.

[0044] The typical application scenario of the present application is real-time state monitoring and fault early warning of the immersion cooling server system in high-density computing environments such as data centers, high-performance computing clusters and artificial intelligence computing platforms.

[0045] Embodiment 2, refer to Figures 1-4 The present application provides an immersion liquid-cooled server system monitoring system based on the above embodiment.

[0046] Reference Figure 1 The immersion liquid-cooled server system comprises an immersion cabinet 100, and the immersion cabinet 100 comprises a server slot 101 and a cooling liquid circulating system 120.

[0047] Specifically, a server cavity 110 is formed in the immersion cabinet 100, and the server slot 101 is arranged in the server cavity 110. The server slot 101 is used to install the server body, and the server body installed on the server slot 101 can be partially or wholly immersed in the cooling liquid in the server cavity 110 during use.

[0048] The cooling liquid circulating system 120 comprises a liquid storage device 121, a pipeline subsystem 122 and a heat exchange device 123, the liquid storage device 121 is connected with the server cavity 110 through the pipeline subsystem 122 to realize the circulation of the cooling liquid between the liquid storage device 121 and the server cavity 110, and the heat exchange device 123 is used to realize the heat exchange between the cooling liquid in the liquid storage device 121 and the outside.

[0049] In the embodiments of the present application, with reference to Figure 2 The submerged liquid-cooled server monitoring system comprises a micro control unit 210 and a first liquid level sensor 221, a second liquid level sensor 222, a first temperature sensor 231 and a second temperature sensor 232 which are signal connected with the micro control unit 210.

[0050] The first liquid level sensor 221 is installed in the server cavity and used to collect the liquid level in the server cavity.

[0051] The second liquid level sensor 222 is installed in the liquid storage device and used to collect the liquid level in the liquid storage device 121.

[0052] Specifically, the first liquid level sensor 221 and the second liquid level sensor 222 can be implemented in various forms such as a capacitive liquid level sensor, an impedance liquid level sensor, an ultrasonic liquid level sensor, etc. In actual implementation, considering factors such as cost, a capacitive liquid level sensor can be used preferentially, because the cooling liquid is usually a liquid with low conductivity or even no conductivity, which has little effect on the measurement accuracy of the capacitive liquid level sensor, so that the cost can be reduced while ensuring the measurement accuracy and service life.

[0053] The first temperature sensor 231 is installed in the server cavity and used to collect the temperature of the cooling liquid in the server cavity.

[0054] The second temperature sensor 232 is installed in the liquid storage device and used to collect the temperature of the cooling liquid in the liquid storage device.

[0055] Specifically, the first temperature sensor 231 and the second temperature sensor 232 can be implemented as temperature-sensitive devices such as a thermal resistance, a thermocouple and a thermistor. In actual implementation, in order to improve the accuracy of temperature monitoring, the first temperature sensor 231 can comprise a plurality of temperature probes, and different temperature probes can be arranged at different positions of the server cavity, so that the actual temperature of the cooling liquid in the server cavity can be determined based on the temperatures at different positions, thereby helping to improve the accuracy of temperature monitoring.

[0056] In the present application, a liquid level sensor is additionally provided for measuring the liquid level, so that the temperature and the liquid level can be monitored synchronously during the operation of the server, thereby providing accurate guidance for the operation and maintenance of the server.

[0057] In addition, by arranging the liquid level sensor and the temperature sensor in the server cavity and the liquid storage device respectively to collect the liquid level and temperature data of the cooling liquid in the server cavity and the liquid storage device respectively, the limitation of single data can be avoided, because the monitoring data collected at different positions can provide more references for the abnormality judgment of the server. Therefore, in the process of abnormality judgment, the abnormality judgment can be performed based on the difference between the monitoring data and the preset threshold, and the abnormality judgment can also be performed based on the difference between the monitoring data collected at different positions. For example, the expected cooling threshold is determined based on the first temperature data collected by the first temperature sensor 231 (the expected cooling threshold is positively correlated with the first temperature data, and the corresponding relationship can be preset). If the second temperature data collected by the second temperature sensor 232 is greater than the expected cooling threshold, it indicates that the heat exchange device does not work normally, and it can be determined that the heat exchange device works abnormally. For another example, the total amount of the cooling liquid in the server cavity and the liquid storage tank is estimated based on the data collected by the first liquid level sensor 221 and the second liquid level sensor 222, and then whether the liquid leaks is monitored. For example, if the total amount of the cooling liquid is less than a preset threshold or the cooling liquid decreases too fast, it is determined that there is a liquid leakage. For another example, whether the cooling liquid circulation is blocked is determined based on the liquid level difference of the cooling liquid in the server cavity and the liquid storage device. If the liquid level difference is greater than a liquid level difference threshold, it is determined that the cooling liquid circulation is blocked. Therefore, the accuracy of the abnormality judgment can be improved.

[0058] In the embodiments of the present application, the liquid level sensor is a capacitive liquid level sensor. Since the cooling liquid is generally a liquid with low conductivity or no conductivity, the capacitive liquid level sensor can provide high-precision liquid level measurement and is not affected by changes in the composition of the liquid. The capacitive sensor has a long service life and low cost, and is suitable for long-term use in a liquid cooling system.

[0059] In an alternative embodiment, the liquid level sensor can be an ultrasonic liquid level sensor. The ultrasonic liquid level sensor determines the liquid level by emitting ultrasonic waves and measuring the echo time, which has the advantage of non-contact measurement. This sensor is suitable for scenarios where the composition of the cooling liquid changes easily or there are strict requirements for contact sensors, for example, in a liquid cooling system where the liquid is corrosive or cannot be directly contacted.

[0060] In another alternative embodiment, the liquid level sensor can be an impedance liquid level sensor. The impedance liquid level sensor determines the liquid level by detecting the change in impedance between the liquid and the electrode. The impedance sensor is suitable for applications where the cost requirement is high and the cooling liquid has strong conductivity, and can provide relatively stable liquid level monitoring results.

[0061] In the embodiments of the present application, the temperature sensor is selected as a thermocouple type temperature sensor, which has a wide operating temperature range, is suitable for use in high temperature environments, and can accurately measure the temperature of the cooling liquid. The thermocouple has the characteristics of fast response and can provide immediate feedback in the case of rapid temperature change, which is suitable for high-performance immersion liquid cooling systems.

[0062] In an alternative embodiment, the temperature sensor can be selected as a thermal resistance type temperature sensor. The thermal resistance sensor has high measurement accuracy and long-term stability, and is particularly suitable for scenarios that require high accuracy and long-term stable operation. Although it has a higher cost, it is particularly advantageous for some very strict temperature control applications (such as high-precision computing servers, etc.).

[0063] In another alternative embodiment, the temperature sensor can use a thermistor type temperature sensor. Compared with thermocouples, this sensor has higher resolution and stability, and is suitable for low-temperature environment applications that require high accuracy. The thermistor type sensor is commonly used in liquid cooling systems, especially in situations where high temperature stability is required, and can be a good alternative.

[0064] In the embodiments of the present application, the selection basis and alternative solutions for the liquid level and temperature sensor. In actual applications, selecting the appropriate sensor type can be optimized according to the cooling liquid characteristics, system requirements, and cost factors, etc., to ensure efficient and stable operation of the system in different application environments.

[0065] In the embodiments of the present application, referring to Figure 3 , the immersion liquid cooling server monitoring system further comprises a first flow rate sensor 241 connected to the micro control unit 210 for monitoring the flow rate of the cooling liquid, and the first flow rate sensor 241 is arranged at the liquid inlet or liquid outlet of the server cavity.

[0066] Specifically, the first flow rate sensor 241 can be implemented as an electromagnetic flowmeter, ultrasonic flowmeter, etc. that can measure the flow rate of the liquid. In actual implementation, considering factors such as cost, an electromagnetic flowmeter can be used first, as the cooling liquid is usually a liquid with low or no conductivity, which has little effect on the measurement accuracy of the electromagnetic flowmeter, and the electromagnetic flowmeter has high accuracy and little disturbance to the liquid flow, so that the measurement requirements can be met while reducing the cost.

[0067] Further, the immersion liquid cooling server monitoring system further comprises a second flow rate sensor 242 connected to the micro control unit 211 for monitoring the flow rate of the cooling liquid. The second flow rate sensor 242 is arranged at the liquid inlet or liquid outlet of the liquid storage device 121.

[0068] In a specific example, the first flow rate sensor 241 and the second flow rate sensor 242 are arranged at both ends of the same connecting pipe. For example, the first flow rate sensor 241 is arranged at the liquid outlet of the server cavity, and the second flow rate sensor 242 is arranged at the liquid inlet of the liquid storage device 121. In this way, not only can the circulation of the coolant be monitored based on the data collected by the flow rate sensors, but it is also convenient to determine the state of the connecting pipe through the values ​​of the flow rate data collected by the first flow rate sensor 241 and the second flow rate sensor 242, thereby assisting in judging whether the immersion liquid cooling server has an abnormality. The specific judgment method includes monitoring the difference in flow rate data collected by the first flow rate sensor 241 and the second flow rate sensor 242, and determining that the pipe is blocked when the difference in the monitored flow rate data is greater than a preset difference threshold.

[0069] In the embodiments of this application, an electromagnetic flowmeter is used as the flow velocity sensor. Electromagnetic flowmeters are suitable for monitoring the flow rate of conductive liquids, offering high accuracy and minimal flow disturbance. Because coolants generally have a certain degree of conductivity, electromagnetic flowmeters can accurately measure the flow rate of coolant and are unaffected by impurities or bubbles in the fluid, providing stable flow rate data. Therefore, electromagnetic flowmeters are well suited to the long-term stable operation requirements of this system.

[0070] In an optional embodiment, an ultrasonic flowmeter can be used as the flow velocity sensor. Ultrasonic flowmeters utilize changes in the propagation velocity of sound waves to measure liquid flow rate, offering the advantage of non-contact measurement. This sensor is suitable for applications where the coolant contains a certain amount of particulate impurities or where contact sensors are more demanding. While ultrasonic flowmeters have high installation and maintenance costs, their high reliability and long-term stability make them suitable for high-end liquid cooling systems with stringent flow velocity measurement requirements.

[0071] In another optional embodiment, a turbine flowmeter can be used as the flow sensor. A turbine flowmeter uses the flow of liquid to drive a turbine, thereby calculating the flow rate. This type of flowmeter is suitable for scenarios requiring low cost and medium accuracy. In particular, in systems with relatively stable coolant flow and low flow rates, turbine flowmeters can provide sufficient measurement accuracy and require low maintenance. Although their accuracy is slightly lower than that of electromagnetic and ultrasonic flowmeters, they remain a valid alternative in some cost-sensitive applications.

[0072] In the embodiments of this application, reference is made to Figure 4The immersion liquid-cooled server monitoring system further comprises a power monitoring assembly 250 connected with the micro control unit 210 and configured to collect the power consumption of the server body.

[0073] In actual implementation, each server slot in the server cavity is provided with a power supply interface for supplying power to the server body installed in the slot.

[0074] In actual research, it is found that the power of the server is dynamically changed during use, for example, when the access volume is large, the server computation is large, and the corresponding working power is large, and when the access volume is small, the server computation is small, and the corresponding working power is small.

[0075] In the above technical solution, the power monitoring assembly arranged independently of the server body can monitor the number of used server bodies and the power of each server body in the immersion liquid-cooled server without directly interacting with the server body, which can help the monitoring system to be compatible with the server body, and thus can facilitate the deployment of the immersion liquid-cooled server monitoring system.

[0076] In addition, the data monitored by the power monitoring assembly can also provide a reference for the control of the immersion liquid-cooled server, for example, dynamically adjusting the circulation speed of the cooling liquid according to the power, which can help to improve the intelligent degree of the immersion liquid-cooled server.

[0077] In the present application, the flow rate sensor and the power monitoring assembly can be used separately or simultaneously.

[0078] As an expandable direction, the immersion liquid-cooled server monitoring system further comprises a communication assembly connected with the micro controller 210, the communication assembly being configured to establish a communication connection with a cloud platform to send the collected data to the cloud platform for centralized viewing by operation and maintenance personnel.

[0079] Embodiment 3, refer to Figure 5 As a third embodiment of the present application, the embodiment provides an immersion liquid-cooled server system monitoring system, comprising:

[0080] Step 301, monitoring the first temperature collected by the first temperature sensor 231, determining the expected temperature drop threshold, and executing step 302.

[0081] Step 302, determining whether the second temperature collected by the second temperature sensor 232 is greater than the expected temperature drop threshold based on the expected temperature drop threshold determined by the first temperature; if yes, determining that the heat exchanger is abnormal; if no, executing step 303.

[0082] Step 303, estimating the total amount of cooling liquid in the server cavity and the liquid storage tank based on the first liquid level collected by the first liquid level sensor 221 and the second liquid level collected by the second liquid level sensor 222.

[0083] Step 304, determining whether the total amount of cooling liquid is less than the preset total amount threshold; if yes, determining that the cooling liquid is leaking; if no, executing step 305.

[0084] Step 305, determining whether the absolute value of the difference between the first liquid level and the second liquid level is greater than the preset difference threshold; if yes, determining that there is a blockage in the cooling liquid circulation.

[0085] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. An immersion liquid cooling server system monitoring system, characterized by: include, microcontrol unit; A first liquid level sensor and a second liquid level sensor are used to collect liquid levels; The first temperature sensor and the second temperature sensor are used to collect the temperature of the coolant; The microcontroller unit is used to perform abnormality judgment based on the data collected by the sensor, including judging that the heat exchange is abnormal when the second temperature is greater than the expected temperature drop threshold determined based on the first temperature, and judging that there is a leak or blockage when the total liquid level is less than a preset threshold or the liquid level difference exceeds a difference threshold; The immersion liquid cooling server system includes an immersion cabinet, which includes server slots and a cooling liquid circulation system for partially or completely immersing the server body in the cooling liquid.

2. The immersion liquid cooling server system monitoring system according to claim 1, characterized in that: The submerged cabinet is provided with a server cavity, and a server slot is provided in the server cavity. The server slot is used to install a server body, so that the server body is partially or completely immersed in the cooling liquid of the server cavity during use.

3. The immersion liquid cooling server system monitoring system according to claim 2, characterized in that: The coolant circulation system includes a liquid storage device, a pipeline subsystem and a heat exchange device; The liquid storage device is connected to the server cavity through the pipeline subsystem to realize the circulation of cooling liquid between the liquid storage device and the server cavity; The heat exchange device is used to realize heat exchange between the coolant in the liquid storage device and the outside world.

4. The immersion liquid cooling server system monitoring system according to claim 3, characterized in that: The micro control unit is used to receive monitoring data from liquid level and temperature sensors, and to determine the operating status of the immersion liquid cooling server system based on the data.

5. The immersion liquid cooling server system monitoring system according to claim 4, characterized in that: The first liquid level sensor is installed in the server cavity and is used to collect the liquid level in the server cavity; The second liquid level sensor is installed in the liquid storage device and is used to collect the liquid level in the liquid storage device; The first temperature sensor is installed in the server cavity and is used to collect the temperature of the coolant in the server cavity; The first temperature sensor includes multiple temperature probes, each of which is arranged at different positions in the server cavity, and the actual temperature of the coolant in the server cavity is determined based on the temperature at different positions; The second temperature sensor is installed in the liquid storage device and is used to collect the temperature of the coolant in the liquid storage device; By respectively arranging a liquid level sensor and a temperature sensor in the server cavity and the liquid storage device, the liquid level and temperature data of the coolant in the server cavity and the liquid storage device are collected respectively, avoiding the limitation of single data.

6. The immersion liquid cooling server system monitoring system according to claim 5, characterized in that: Also included is a first flow rate sensor and a second flow rate sensor; a first flow rate sensor, for monitoring the flow rate of the coolant, the first flow rate sensor being disposed at a liquid inlet or a liquid outlet of the server cavity; a second flow rate sensor, for monitoring the flow rate of the coolant, the second flow rate sensor being arranged at the liquid inlet or the liquid outlet of the liquid storage device; The first flow velocity sensor and the second flow velocity sensor are arranged at two ends of a connecting pipe of the same liquid storage device.

7. The immersion liquid cooling server system monitoring system according to claim 6, characterized in that: Also included are power monitoring components; Power monitoring component, used to collect the power consumption of the server itself; The power monitoring component includes a current sensor, a voltage sensor and a data processing unit, wherein the data processing unit is used to calculate the electric power based on the current collected by the current sensor and the voltage collected by the voltage sensor; Each server slot in the server cavity is provided with a corresponding power supply interface for powering the server body installed on the slot. The power monitoring component is electrically connected to the power supply interface for monitoring the power supply power of the power supply interface, thereby indirectly monitoring the power consumption of the server body.

8. The immersion liquid cooling server system monitoring system according to claim 7, characterized in that: It also includes a communication component, which is connected to the micro control unit signal and is used to upload the monitoring data to the cloud platform to achieve remote operation and maintenance management and fault monitoring.

9. The immersion liquid cooling server system monitoring system according to claim 8, characterized in that: The micro control unit determines an expected temperature drop threshold based on the temperature data collected by the first temperature sensor, and compares the expected temperature drop threshold with the temperature collected by the second temperature sensor to determine whether there is an abnormality in the heat exchange device.

10. A method for monitoring an immersion liquid cooling server system, using the method for monitoring an immersion liquid cooling server system according to any one of claims 1 to 9, characterized in that: include: Monitoring a first temperature collected by a first temperature sensor to determine an expected temperature drop threshold; determining whether a second temperature acquired by a second temperature sensor is greater than the expected temperature drop threshold based on an expected temperature drop threshold determined by the first temperature, and determining that the heat exchanger is operating abnormally if the second temperature acquired by the second temperature sensor is greater than the expected temperature drop threshold; If the temperature is not greater than the expected temperature drop threshold, estimating the total amount of coolant in the server cavity and the liquid storage tank based on the first liquid level detected by the first liquid level sensor and the second liquid level detected by the second liquid level sensor; determining whether the total amount of coolant is less than a preset total amount threshold, and if so, determining that the coolant is leaking; If it is not less than the preset total amount threshold, determine whether the absolute value of the difference between the first liquid level and the second liquid level is greater than the preset difference threshold. If it is greater than the preset difference threshold, determine that the coolant circulation is blocked.

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