CN114528180A - Method and device for monitoring liquid cooling system of dual-phase cold plate - Google Patents
Method and device for monitoring liquid cooling system of dual-phase cold plate Download PDFInfo
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- CN114528180A CN114528180A CN202210121147.0A CN202210121147A CN114528180A CN 114528180 A CN114528180 A CN 114528180A CN 202210121147 A CN202210121147 A CN 202210121147A CN 114528180 A CN114528180 A CN 114528180A
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- 238000001816 cooling Methods 0.000 title claims abstract description 127
- 239000007788 liquid Substances 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 title claims abstract description 31
- 239000003507 refrigerant Substances 0.000 claims abstract description 121
- 238000012545 processing Methods 0.000 claims abstract description 27
- 230000008859 change Effects 0.000 claims abstract description 13
- 239000002826 coolant Substances 0.000 claims description 8
- 230000009977 dual effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 238000012806 monitoring device Methods 0.000 abstract description 2
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 6
- 230000005514 two-phase flow Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3058—Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/3024—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is a central processing unit [CPU]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention provides a monitoring method and a monitoring device of a two-phase cold plate liquid cooling system; the method comprises the following steps: acquiring the temperature of a refrigerant at an outlet of a circulating pump of the dual-phase cold plate liquid cooling system and the power consumption of a CPU (central processing unit) which is arranged near an evaporator of the dual-phase cold plate liquid cooling system and is provided with an internal temperature sensor; obtaining a first CPU junction temperature of the CPU according to the temperature of a refrigerant at an outlet of a circulating pump and the power consumption of the CPU; obtaining a second CPU (central processing unit) temperature of the CPU through an internal temperature sensor; and judging the refrigerant leakage condition of the two-phase cold plate liquid cooling system according to the change of the difference value between the first CPU junction temperature and the second CPU junction temperature. The invention designs a monitoring method of a two-phase cold plate liquid cooling system by using a strong coupling relation between a cooling object and a cooling system and taking a CPU with an internal temperature sensor as a device for reflecting the state of the cooling system, and can realize accurate monitoring of the refrigerant leakage condition at lower cost.
Description
Technical Field
The invention relates to the field of refrigerant leakage monitoring, in particular to a method and a device for monitoring a liquid cooling system of a dual-phase cold plate.
Background
The application cases of the existing two-phase cold plate liquid cooling technology in a data center are few, and the scale is small. When a refrigerant leaks from a two-phase cold plate liquid cooling system, a simple handheld leak detector is often adopted for positioning detection (detecting the halogen concentration in a space) node by node cabinet by cabinet, the time is long, the efficiency is too low, and the investment cost is high; moreover, the over-long positioning time easily causes the leakage of the system refrigerant to be too large and not to be supplemented, thereby causing the dry-burning phenomenon of the system evaporator and seriously affecting the reliability of the cooling object. In addition, the leakage node is positioned by adopting the handheld leak detector, the leakage quantity is difficult to judge, and an operator can only judge whether the pipeline of the leakage node needs to be cut off immediately through experience, so that the requirement on the operator is high, and misjudgment is easily caused.
Therefore, there is a need for a more accurate and reliable monitoring method or device for monitoring refrigerant leakage of a dual-phase cold plate liquid cooling system.
Disclosure of Invention
The method aims to monitor the leakage of the refrigerant of the two-phase cold plate liquid cooling system more accurately and reliably. In one aspect of the present invention, a method for monitoring a liquid cooling system of a dual-phase cold plate is provided, the method comprising: acquiring the temperature of a refrigerant at the outlet of a circulating pump of the two-phase cold plate liquid cooling system and the power consumption of a CPU (central processing unit) with an internal temperature sensor, which is arranged near an evaporator of the two-phase cold plate liquid cooling system; obtaining a first CPU junction temperature of the CPU according to the temperature of a refrigerant at an outlet of the circulating pump and the power consumption of the CPU; obtaining a second CPU (central processing unit) temperature of the CPU through the internal temperature sensor; and judging the refrigerant leakage condition of the dual-phase cold plate liquid cooling system according to the change of the difference value between the first CPU junction temperature and the second CPU junction temperature.
In one or more embodiments, the determining a refrigerant leakage condition of the dual-phase cold plate liquid cooling system according to a change in a difference between the first CPU junction temperature and the second CPU junction temperature includes: and when the difference value between the first CPU junction temperature and the second CPU junction temperature is larger than a first preset value and is kept for a preset time, judging that the slight refrigerant leakage occurs in the two-phase cold plate liquid cooling system.
In one or more embodiments, the determining a refrigerant leakage condition of the dual-phase cold plate liquid cooling system according to a change in a difference between the first CPU junction temperature and the second CPU junction temperature includes: and when the first CPU junction temperature is higher than the second CPU junction temperature, the second CPU junction temperature is rapidly increased, and the difference value between the second CPU junction temperature and the first CPU junction temperature is higher than a second preset value, judging that the double-phase cooling plate liquid cooling system has serious refrigerant leakage.
In one or more embodiments, the method further comprises: and when judging that the double-phase cold plate liquid cooling system has serious refrigerant leakage, controlling the double-phase cold plate liquid cooling system to cut off a pipeline with the serious refrigerant leakage.
In one or more embodiments, the method further comprises: acquiring the wall temperatures of a plurality of refrigerant pipes near a plurality of connectors of the dual-phase cold plate liquid cooling system; and determining the refrigerant leakage position based on the temperatures of the plurality of refrigerant pipe walls.
In a second aspect of the present invention, a monitoring system for a liquid cooling system of a dual-phase cold plate is provided, comprising: the temperature sensors at least comprise a refrigerant temperature sensor which is arranged at the outlet of a circulating pump of the dual-phase cold plate liquid cooling system and is configured for detecting the temperature of the refrigerant; the processing module is at least configured to acquire the temperature of a refrigerant at an outlet of a circulating pump of the dual-phase cold plate liquid cooling system and the power consumption of a CPU (central processing unit) with an internal temperature sensor, which is arranged near an evaporator of the dual-phase cold plate liquid cooling system; obtaining a first CPU junction temperature of the CPU according to the temperature of a refrigerant at an outlet of the circulating pump and the power consumption of the CPU; obtaining a second CPU (central processing unit) temperature of the CPU through the internal temperature sensor; and judging the refrigerant leakage condition of the dual-phase cold plate liquid cooling system according to the change of the difference value between the first CPU junction temperature and the second CPU junction temperature.
In one or more embodiments, the processing module is further configured to: and when the difference value between the first CPU junction temperature and the second CPU junction temperature is larger than a first preset value and is kept for a preset time, judging that the slight refrigerant leakage occurs in the two-phase cold plate liquid cooling system.
In one or more embodiments, the processing module is further configured to: and when the first CPU junction temperature is higher than the second CPU junction temperature, the second CPU junction temperature is rapidly increased, and the difference value between the second CPU junction temperature and the first CPU junction temperature is higher than a second preset value, judging that the double-phase cooling plate liquid cooling system has serious refrigerant leakage.
In one or more embodiments, the processing module is further configured to: and when judging that the double-phase cold plate liquid cooling system has serious refrigerant leakage, controlling the double-phase cold plate liquid cooling system to cut off a pipeline with the serious refrigerant leakage.
In one or more embodiments, the plurality of sensors further comprises a plurality of sensors disposed on a wall of a refrigerant tube near a connector of the dual phase cold plate liquid cooling system, the processing module further configured to: acquiring the wall temperatures of a plurality of refrigerant pipes near a plurality of connectors of the dual-phase cold plate liquid cooling system; and determining the refrigerant leakage position based on the temperatures of the plurality of refrigerant pipe walls. The beneficial effects of the invention include: the invention designs a monitoring method of a two-phase cold plate liquid cooling system by using a strong coupling relation between a cooling object and a cooling system and taking a CPU with an internal temperature sensor as a device for reflecting the state of the cooling system; the method not only can accurately judge the refrigerant leakage condition (slight or serious) of the liquid cooling system of the dual-phase cold plate, but also has lower hardware investment cost and is more convenient to popularize and implement because the method is implemented only by using a cheaper temperature sensor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
FIG. 1 is a flow chart of the operation of a method for monitoring a liquid cooling system of a dual-phase cold plate according to the present invention;
fig. 2 is a diagram illustrating the use of the monitoring system of the dual-phase cold plate liquid cooling system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
Fig. 1 is a flowchart illustrating a monitoring method of a two-phase cold plate liquid cooling system according to the present invention. As shown in fig. 1, the working process of the monitoring method of the dual-phase cold plate liquid cooling system of the present invention includes: step S1, acquiring the temperature of a refrigerant at the outlet of a circulating pump of the dual-phase cold plate liquid cooling system and the power consumption of a CPU (central processing unit) with an internal temperature sensor, which is arranged near an evaporator of the dual-phase cold plate liquid cooling system; step S2, obtaining a first CPU junction temperature of the CPU according to the refrigerant temperature at the outlet of the circulating pump and the power consumption of the CPU; step S3, obtaining a second CPU temperature saving of the CPU through the internal temperature sensor; and step S4, judging the refrigerant leakage condition of the dual-phase cold plate liquid cooling system according to the difference change between the first CPU junction temperature and the second CPU junction temperature.
The principle of the invention comprises: on one hand, the refrigerant in the two-phase cold plate liquid cooling system is in a two-phase flow state all the time, when the two-phase cold plate liquid cooling system works normally, the two-phase flow state is in a saturated state, and at the moment, the temperature of the refrigerant at the same position in the refrigerant pipe and the evaporation temperature of the refrigerant correspond to the saturated two-phase flow state and have a stable corresponding relation. When the coolant leaks from the two-phase cold plate liquid cooling system, the saturation state of the two-phase flow state can be broken, and the stable relation between the coolant temperature and the evaporating temperature of the coolant is further damaged.
On the other hand, the real junction temperature of the CPU can be directly obtained by an internal temperature sensor of the CPU, wherein the internal temperature sensor is a temperature sensor built in the CPU; in addition, the junction temperature of the CPU can also be calculated by the following formula:
CPU junction temperature 1 (refrigerant evaporation temperature + heat resistance from CPU to cold plate) CPU power consumption
If the evaporation temperature of the refrigerant in the above formula is replaced by the refrigerant temperature, the following results can be obtained:
the CPU junction temperature 2 is the refrigerant temperature plus the heat resistance from the CPU to the cold plate is the CPU power consumption;
therefore, when the dual-phase cold plate liquid cooling system works normally, the temperature of the refrigerant and the evaporation temperature of the refrigerant have a stable corresponding relationship, and therefore, the difference value between the CPU junction temperature 1 and the CPU junction temperature 2 is also stable.
When the coolant leaks from the two-phase cold plate liquid cooling system, the stable relation between the coolant temperature and the evaporating temperature of the coolant is broken, so that the difference value between the CPU junction temperature 1 and the CPU junction temperature 2 is correspondingly not stable any more, and whether the coolant leaks from the two-phase cold plate liquid cooling system can be judged according to the change of the difference value between the CPU junction temperature 1 and the CPU junction temperature 2.
In the above embodiments of the present invention, in order to make the difference between the first CPU junction temperature and the second CPU junction temperature more obvious, the present invention specifically selects the temperature of the refrigerant at the outlet of the circulation pump. The reason for this is that the evaporation temperature of the refrigerant and the refrigerant temperature are also affected by the internal pressure of the refrigerant pipe, and the pressure at the outlet of the circulation pump is more stable than the pressure at the evaporator, so that when the refrigerant leaks, the difference between the first CPU junction temperature and the second CPU junction temperature will change more significantly under the dual effects of the saturation state being broken and the internal pressure.
It should be noted that the foregoing embodiment is a preferred embodiment of the present invention, and in other embodiments, the refrigerant temperature sensor is disposed at another position to obtain the refrigerant temperature, and the first CPU junction temperature is calculated by using the refrigerant temperature sensor, and a corresponding scheme should be within the protection scope of the present invention.
In one embodiment, the determining the refrigerant leakage condition of the dual-phase cold plate liquid cooling system according to the variation of the difference between the first CPU junction temperature and the second CPU junction temperature includes: and when the difference value between the first CPU junction temperature and the second CPU junction temperature is greater than a first temperature threshold value and the preset time is kept, judging that the slight refrigerant leakage occurs in the dual-phase cooling plate liquid cooling system.
In this embodiment, when a slight refrigerant leakage occurs, the internal pressure of the evaporator will be reduced, which will cause the evaporation temperature of the refrigerant inside the evaporator to be reduced accordingly, so that the refrigerant is gasified in advance to absorb heat, thereby reducing the junction temperature of the cooling object, i.e., the CPU with the internal temperature sensor (i.e., the junction temperature of the second CPU will be reduced); on the other hand, because the pressure at the outlet of the circulating pump is hardly influenced, the temperature of the refrigerant at the outlet of the circulating pump is relatively stable (namely the first CPU junction temperature is almost unchanged), and in order to eliminate normal fluctuation, when the difference value obtained by subtracting the second CPU junction temperature from the first CPU junction temperature is larger than a first preset value, the refrigerant leakage of the two-phase cold plate liquid cooling system is indicated, and when the state can be kept for a preset time, the refrigerant leakage degree is relatively low.
In a further embodiment, when slight refrigerant leakage occurs, an alarm can be sent to the corresponding monitoring center to remind relevant maintenance personnel to eliminate the leakage.
In another implementation, when the first CPU junction temperature is first greater than the second CPU junction temperature, and then the second CPU junction temperature rapidly increases and the difference between the second CPU junction temperature and the first CPU junction temperature is greater than a second preset value, it is determined that the dual-phase cold plate liquid cooling system has a severe refrigerant leakage.
In this embodiment, in the process that the first CPU junction temperature is first higher than the second CPU junction temperature, the principle is the same as that in the previous embodiment, except that when the refrigerant leakage is serious, insufficient refrigerant in the evaporator will be caused, so that insufficient heat dissipation is caused, and further, the second CPU junction temperature is rapidly raised after being first lowered until being higher than the first CPU junction temperature.
In a further embodiment, when serious refrigerant leakage occurs, the liquid cooling system of the dual-phase cold plate can be controlled to cut off a pipeline with the serious refrigerant leakage so as to avoid great loss of the refrigerant and avoid more serious accidents caused by overheating of a cooling object; and simultaneously, an alarm is sent to the corresponding monitoring center to remind relevant maintenance personnel to eliminate the leakage.
In the above embodiments, the present invention utilizes the strong coupling relationship between the cooling object and the cooling system, and designs a monitoring method for the liquid cooling system of the dual-phase cold plate by using the cooling object, i.e. the CPU with the internal temperature sensor, as a device for reflecting the state of the cooling system; the method not only can accurately judge the refrigerant leakage condition (slight or serious) of the liquid cooling system of the dual-phase cold plate, but also has lower hardware investment cost and is more convenient to popularize and implement because the method is implemented only by using a cheaper temperature sensor.
In another embodiment, in order to assist in quickly positioning the refrigerant leakage position for leakage elimination, the method for monitoring a liquid cooling system of a dual-phase cold plate according to the present invention further includes: acquiring the wall temperatures of a plurality of refrigerant pipes near a plurality of connectors of a two-phase cold plate liquid cooling system; and determining the refrigerant leakage position based on the temperatures of the walls of the plurality of refrigerant pipes.
In this embodiment, the leaking position of the refrigerant is mostly generated at the connectors of the two-phase cold plate liquid cooling system, and therefore, at each connector, once the refrigerant leaks, the leaked refrigerant can be rapidly gasified to absorb heat, so that the wall temperature of the refrigerant pipe near the leaking position of the refrigerant is rapidly reduced, and the leaking position of the refrigerant can be rapidly determined by comparing the temperatures of the connectors.
In a second aspect of the present invention, a monitoring system for a liquid cooling system of a dual-phase cold plate is provided. Fig. 2 is a diagram illustrating the use of the monitoring system of the dual-phase cold plate liquid cooling system according to the present invention. As shown in fig. 2, the two-phase cold plate liquid cooling system is composed of a condenser, a circulation pump, a plurality of evaporators, a plurality of connectors, and a refrigerant pipe (not specifically shown). The monitoring system of the present invention includes: the system comprises a plurality of temperature sensors 1, wherein each of the plurality of temperature sensors 1 at least comprises a refrigerant temperature sensor 3 which is arranged at an outlet of a circulating pump of a dual-phase cold plate liquid cooling system and is configured for detecting the temperature of a refrigerant; the processing module 2 is at least configured to acquire the refrigerant temperature at the outlet of a circulating pump of the dual-phase cold plate liquid cooling system and the power consumption of a CPU (central processing unit) with an internal temperature sensor, which is arranged near an evaporator of the dual-phase cold plate liquid cooling system; obtaining a first CPU junction temperature of the CPU according to the temperature of a refrigerant at an outlet of the circulating pump and the power consumption of the CPU; obtaining a second CPU temperature saving of the CPU through an internal temperature sensor; and judging the refrigerant leakage condition of the dual-phase cold plate liquid cooling system according to the change of the difference value between the first CPU junction temperature and the second CPU junction temperature.
In one embodiment, the processing module 2 is further configured to: and when the difference value between the first CPU junction temperature and the second CPU junction temperature is larger than a first preset value and the preset time is kept, judging that the slight refrigerant leakage occurs in the dual-phase cold plate liquid cooling system.
In one embodiment, the processing module 2 is further configured to: and when the first CPU junction temperature is higher than the second CPU junction temperature, the second CPU junction temperature is rapidly increased, and the difference value between the second CPU junction temperature and the first CPU junction temperature is higher than a second preset value, judging that the serious refrigerant leakage occurs in the dual-phase cold plate cooling system.
In one embodiment, the processing module 2 is further configured to: and when the severe refrigerant leakage of the two-phase cold plate liquid cooling system is judged, the two-phase cold plate liquid cooling system is controlled to cut off the pipeline with the severe refrigerant leakage.
In one embodiment, the plurality of sensors 1 further comprises a plurality of sensors disposed on a wall of the refrigerant tube near the connector of the dual-phase cold plate liquid cooling system, and the processing module 2 is further configured to: acquiring the wall temperatures of a plurality of refrigerant pipes near a plurality of connectors of a two-phase cold plate liquid cooling system; and determining the refrigerant leakage position based on the temperatures of the walls of the plurality of refrigerant pipes.
In the above embodiments, the present invention utilizes the strong coupling relationship between the cooling object and the cooling system, and designs a monitoring device of a two-phase cold plate liquid cooling system by using the cooling object, i.e., the CPU with an internal temperature sensor, as a device for reflecting the state of the cooling system; the device not only can accurately judge the refrigerant leakage condition (slight or serious) of the liquid cooling system of the dual-phase cold plate, but also has lower hardware investment cost and is more convenient to popularize and implement because the device only needs to use a cheaper temperature sensor.
The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the present disclosure as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
It should be understood that, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.
The numbers of the embodiments disclosed in the embodiments of the present invention are merely for description, and do not represent the merits of the embodiments.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant only to be exemplary, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of the embodiments of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.
Claims (10)
1. A method for monitoring a liquid cooling system of a dual-phase cold plate, the method comprising:
acquiring the temperature of a refrigerant at the outlet of a circulating pump of the two-phase cold plate liquid cooling system and the power consumption of a CPU (central processing unit) with an internal temperature sensor, which is arranged near an evaporator of the two-phase cold plate liquid cooling system;
obtaining a first CPU junction temperature of the CPU according to the temperature of a refrigerant at an outlet of the circulating pump and the power consumption of the CPU;
obtaining a second CPU (central processing unit) temperature of the CPU through the internal temperature sensor;
and judging the refrigerant leakage condition of the dual-phase cold plate liquid cooling system according to the change of the difference value between the first CPU junction temperature and the second CPU junction temperature.
2. The method for monitoring a liquid cooling system of a dual-phase cold plate according to claim 1, wherein said determining a refrigerant leakage condition of the liquid cooling system of the dual-phase cold plate according to a change in a difference between the first CPU junction temperature and the second CPU junction temperature comprises:
and when the difference value between the first CPU junction temperature and the second CPU junction temperature is larger than a first preset value and is kept for a preset time, judging that the slight refrigerant leakage occurs in the two-phase cold plate liquid cooling system.
3. The method for monitoring a liquid cooling system of a dual-phase cold plate according to claim 1, wherein the step of determining the refrigerant leakage condition of the liquid cooling system of the dual-phase cold plate according to the change of the difference between the first CPU junction temperature and the second CPU junction temperature comprises the steps of:
and when the first CPU junction temperature is higher than the second CPU junction temperature, then the second CPU junction temperature is rapidly increased, and the difference value between the second CPU junction temperature and the first CPU junction temperature is higher than a second preset value, judging that the two-phase cooling plate liquid cooling system has serious refrigerant leakage.
4. The method of monitoring a dual cold plate liquid cooling system of claim 3, further comprising:
and when judging that the double-phase cold plate liquid cooling system has serious refrigerant leakage, controlling the double-phase cold plate liquid cooling system to cut off a pipeline with the serious refrigerant leakage.
5. The method of monitoring a dual cold plate liquid cooling system of claim 1, further comprising:
acquiring the wall temperatures of a plurality of refrigerant pipes near a plurality of connectors of the dual-phase cold plate liquid cooling system;
and determining the refrigerant leakage position based on the temperatures of the plurality of refrigerant pipe walls.
6. A monitoring system of a dual-phase cold plate liquid cooling system is characterized by comprising:
the temperature sensors at least comprise a refrigerant temperature sensor which is arranged at the outlet of a circulating pump of the dual-phase cold plate liquid cooling system and is configured for detecting the temperature of the refrigerant; and
the processing module is at least configured to acquire the temperature of a refrigerant at an outlet of a circulating pump of the dual-phase cold plate liquid cooling system and the power consumption of a CPU (central processing unit) with an internal temperature sensor, which is arranged near an evaporator of the dual-phase cold plate liquid cooling system; obtaining a first CPU junction temperature of the CPU according to the temperature of a refrigerant at an outlet of the circulating pump and the power consumption of the CPU; obtaining a second CPU (central processing unit) temperature of the CPU through the internal temperature sensor; and judging the refrigerant leakage condition of the dual-phase cold plate liquid cooling system according to the change of the difference value between the first CPU junction temperature and the second CPU junction temperature.
7. The monitoring system for liquid cooling systems of claim 6, wherein the processing module is further configured to:
and when the difference value between the first CPU junction temperature and the second CPU junction temperature is larger than a first preset value and is kept for a preset time, judging that the slight refrigerant leakage occurs in the two-phase cooling plate liquid cooling system.
8. The monitoring system for liquid cooling systems of claim 6, wherein the processing module is further configured to:
and when the first CPU junction temperature is higher than the second CPU junction temperature, the second CPU junction temperature is rapidly increased, and the difference value between the second CPU junction temperature and the first CPU junction temperature is higher than a second preset value, judging that the double-phase cooling plate liquid cooling system has serious refrigerant leakage.
9. The monitoring system for liquid cooling systems of claim 8, wherein the processing module is further configured to:
and when judging that the double-phase cold plate liquid cooling system has serious refrigerant leakage, controlling the double-phase cold plate liquid cooling system to cut off a pipeline with serious refrigerant leakage.
10. The system for monitoring a liquid cooling system of claim 6, wherein the plurality of sensors further comprises a plurality of sensors disposed on a wall of a coolant tube near a connector of the dual phase cold plate liquid cooling system, the processing module further configured to:
acquiring the wall temperatures of a plurality of refrigerant pipes near a plurality of connectors of the two-phase cold plate liquid cooling system;
and determining a refrigerant leakage position based on the temperatures of the plurality of refrigerant pipe walls.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116520964A (en) * | 2023-05-17 | 2023-08-01 | 东莞汉旭五金塑胶科技有限公司 | Liquid cooling row and liquid cooling heat abstractor of two liquid pumps |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116520964A (en) * | 2023-05-17 | 2023-08-01 | 东莞汉旭五金塑胶科技有限公司 | Liquid cooling row and liquid cooling heat abstractor of two liquid pumps |
| CN116520964B (en) * | 2023-05-17 | 2024-02-06 | 东莞汉旭五金塑胶科技有限公司 | Liquid cooling row and liquid cooling heat abstractor of two liquid pumps |
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