Cooling liquid circulation system of intelligent calculation all-in-one machine and redundancy safety control method of cooling liquid circulation system

Abstract

The invention provides a cooling liquid circulation system of an intelligent calculation all-in-one machine and a redundancy safety control method thereof. Liquid cooling and air cooling are adopted for cooperative heat dissipation, a main body of the intelligent all-in-one machine is arranged in a layered mode, a containing cavity for containing functional parts is formed in the upper portion so that the functional parts can be cooled in an immersed mode, and a mechanical bin for containing a circulating pump, a radiator and a draught fan is arranged in the lower portion; air cooling heat dissipation is carried out on the radiator; different containing spaces are divided in the containing cavity according to the heating condition of the functional part, through the structural design of the three-way valve, the liquid separator, the branch pipe, the liquid separator, the liquid collector, the opening hole and the like, various cooling liquid circulation schemes and redundancy safety control methods are provided, the heat dissipation capacity under different conditions is improved, and the safety redundancy of the system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling of computing devices, and further relates to a coolant circulation system for an intelligent computing all-in-one machine, and more specifically also relates to a redundant safety control method for an intelligent computing all-in-one machine. Background Art

[0002] In recent years, with the rapid development of artificial intelligence technology and the continuous progress of hardware technology, various general large models and vertical domain models have developed rapidly, and more and more people have started to use various large models to improve work efficiency or empower the business development of their respective fields. However, with the rapid development of AI technology, the problems of data security and intellectual property protection have become increasingly serious. After the data is uploaded to the cloud server, during the use of the large model, there may be risks of leakage of enterprise or personal data and infringement of related intellectual property rights. Therefore, more and more customers hope to be able to deploy their own exclusive large models locally. By deploying locally, the risks of data loss, trade secret leakage, and intellectual property infringement can be significantly reduced. In such a development trend, the demand for all-in-one machines suitable for enterprise or individual customers is becoming increasingly strong.

[0003] However, for such an all-in-one machine, it is usually required to have a certain response and computing ability, and at the same time, its size cannot be too large. Especially for some scientific research institutions or small and medium-sized enterprises, it is necessary to balance the relationship between cost and computing power response well. Therefore, it is necessary to improve the computing power of the all-in-one machine as much as possible within a relatively small size range, which naturally increases the requirement for the power density of the all-in-one machine, and thus brings the problem of heat dissipation of electronic components. The traditional air-cooling method has been difficult to meet its heat dissipation requirements, easily leading to too high device temperature, which in turn affects the performance and stability of the device, and even shortens the service life of the device. Although cold plate liquid cooling can improve the heat dissipation efficiency, it relies on the direct contact between the metal cold plate and the heat-generating components, and a complex pipeline system is required to realize the coolant circulation, increasing the device volume and maintenance complexity. For example, the CDU (Cooling Distribution Unit) and pipelines of the cold plate liquid cooling system account for more than 60% of the overall cost, and maintenance requires shutdown and disassembly, affecting business continuity. In addition, cold plate liquid cooling cannot solve the global heat dissipation problem, and local hot spots may still cause chip downclocking.

[0004] Immersion cooling is feasible for all-in-one machines. However, there are still many problems to be solved in the current immersion cooling system. For example, the vast majority of machines still need to be equipped with a CDU and corresponding secondary-side heat exchange devices externally, making the overall volume and floor area of the machine very large, not suitable for flexible relocation or layout; or, the flow design of the coolant inside the machine is unreasonable, the circulating flow rate or efficiency is low, which easily leads to insufficient local heat dissipation of the core heating elements with large heat generation (such as GPUs), affecting the computing efficiency; or, the working process of the cooling system is relatively simple. When the coolant leaks or the circulation system fails, there is no backup cooling plan, and the core heating elements fail due to insufficient heat dissipation; or, after the machine is installed, it does not have corresponding expandability and cannot meet the subsequent increase in computing power requirements, etc. Summary of the Invention

[0005] The purpose of the present invention is to solve the aforementioned technical problems, and thus provides a coolant circulation system and its redundant safety control method for an intelligent computing all-in-one machine. The specific invention content is as follows:

[0006] A coolant circulation system for an intelligent computing all-in-one machine includes a circulation pump, a liquid supply main pipe, a three-way valve, a first liquid supply branch pipe, a second liquid supply branch pipe, a liquid return main pipe, a radiator, a first fan, and a receiving cavity for containing the coolant. It is characterized in that the receiving cavity includes a first receiving space and a second receiving space separated by a vertical partition plate, and there is a gap below the vertical cavity partition plate for connecting the first receiving space and the second receiving space; several first opening holes are provided in the upper cover plate of the receiving cavity corresponding to the second receiving space, and several third opening holes are provided in the part corresponding to the first receiving space; several second opening holes are provided in the lower bottom plate of the receiving cavity corresponding to the first receiving space; several first opening holes are connected to a first liquid distributor through several first branch pipes, several second opening holes are connected to a second liquid distributor through several second branch pipes, several third opening holes are connected to a liquid collector through several liquid return branch pipes, the first liquid distributor and the second liquid distributor are respectively connected to the three-way valve through the first liquid supply branch pipe and the second liquid supply branch pipe, and the three-way valve is connected to the outlet of the circulation pump (11) through the liquid supply main pipe; the liquid collector is connected to the radiator inlet pipe through the liquid return main pipe, and the radiator outlet pipe (15) is connected to the inlet of the circulation pump.

[0007] Furthermore, a plurality of core heating elements are arranged in the first receiving space, a plurality of non-core heating elements are arranged in the second receiving space, a plurality of slots are additionally arranged in the first receiving space, and a plurality of spare opening holes corresponding to the plurality of slots are additionally arranged in the part of the upper cover plate of the receiving cavity corresponding to the first receiving space.

[0008] Further, one or more rotating blades are arranged in the first accommodation space to be opened when needed, thereby enhancing the heat exchange between the coolant in the first accommodation space and the multiple core heating elements.

[0009] Further, a first temperature sensor and a first pressure sensor are arranged on the radiator inlet pipe, and a second temperature sensor and a second pressure sensor are arranged on the radiator outlet pipe; a third pressure sensor, a pressure relief valve and a liquid injection port are arranged on the upper cover plate.

[0010] Further, the radiator is a microchannel heat exchanger, adopting a single-row, double-row, multi-row or A-type structure; the circulation pump is an adjustable-speed electric water pump with self-diagnosis and fault feedback functions.

[0011] The present invention further provides an intelligent computing all-in-one machine, including an accommodation space defined by a housing and a top cover, an accommodation cavity is arranged above the accommodation space, a mechanical chamber is arranged below, a circulation pump, a radiator and a first fan located behind the radiator are arranged in the mechanical chamber, and the above-mentioned coolant circulation system is further included.

[0012] Further, the mechanical chamber is divided into two parts by a partition plate. The upper part houses the radiator and the first fan, and the lower part houses the circulation pump; and, a second fan is further arranged in the lower part of the mechanical chamber, a plurality of first ventilation holes are respectively opened in the lower parts of the two sides of the housing, and a plurality of second ventilation holes are opened in the partition plate to communicate the upper part and the lower part of the mechanical chamber.

[0013] Further, heat dissipation windows are respectively opened in the front and rear directions at the position of the housing corresponding to the radiator below, an observation window is arranged above the housing, a display screen is arranged above the observation window, handles are respectively arranged on the upper parts of the two sides of the housing, and a aviation plug interface group is arranged at the middle position of one side of the housing, which integrates various interfaces such as industrial-grade I / O expansion interfaces, power module interfaces and display module interfaces.

[0014] Further, a first temperature sensor and a first pressure sensor are arranged on the radiator inlet pipe, a second temperature sensor and a second pressure sensor are arranged on the radiator outlet pipe; a third pressure sensor, a pressure relief valve and a liquid injection port are arranged on the upper cover plate; a controller is further arranged, which is communicatively connected with the first temperature sensor, the first pressure sensor, the second temperature sensor, the second pressure sensor, the third pressure sensor, the control module of the circulation pump, the control modules of the first fan and the second fan, the control module of the rotating blade and the three-way valve.

[0015] The present invention further provides a redundant safety control method for the above-mentioned intelligent computing all-in-one machine, including the following steps:

[0016] S1: When the temperature value T detected by the first temperature sensor exceeds the preset threshold value T1, it indicates that the heat dissipation of the internal components in the accommodation cavity is insufficient;

[0017] S2: Further calculate the pressure difference △T between the first pressure sensor and the second pressure sensor, and determine whether it is within the preset pressure difference range; if so, it proves that the radiator is not blocked or leaking and step S3 is executed; if not, it is prompted that the radiator has a fault;

[0018] S3: Detect the rotational speed and / or current of the first fan and the circulation pump, and determine whether they are within the set range; if so, step S4 is executed; if not, it is prompted that the first fan and / or the circulation pump has a fault;

[0019] S4: Increase the rotational speed of the circulation pump and synchronously increase the rotational speed of the first fan. After running for the first predetermined time t1, determine whether the temperature value T detected by the first temperature sensor is still greater than the first preset threshold value T1; if so, step S5 is executed; if not, the redundant safety control is ended;

[0020] S5: Control the three-way valve to gradually reduce the amount of coolant delivered to the first liquid delivery branch pipe and gradually increase the amount of coolant delivered to the second liquid delivery branch pipe, so that more coolant flowing out of the circulation pump directly flows into the first accommodation space and flows upward through multiple core heating elements to cool them; after running for the second predetermined time t2, determine whether the temperature value T detected by the first temperature sensor is still greater than the first preset threshold value T1; if so, step S6 is executed; if not, the redundant safety control is ended;

[0021] S6: Further open one or more rotating blades to accelerate the flow of the coolant in the first accommodation space to enhance heat exchange; after running for the third preset time t3, determine whether the temperature value T detected by the first temperature sensor is still greater than the first preset threshold value T1; if so, it is prompted that the coolant has failed and needs to be replaced; if not, the redundant safety control is ended.

[0022] Based on the above invention content, the coolant circulation system and redundant safety control method of the cooling intelligent computing all-in-one machine of the present invention have the following advantages:

[0023] (1) Through the hierarchical integration of the body, the upper accommodation cavity houses the functional components on the working side, such as components like GPU, CPU, power supply module, etc., and the lower mechanical compartment houses mechanical components, such as circulation pumps, dry-cooling radiators, fans, etc. Compared with traditional externally placed CDU decentralized liquid cooling devices, the volume is reduced by a large proportion, reducing the floor area and thus facilitating flexible handling, expanding the application scenarios of the device; liquid cooling and air cooling are coordinated. The heat-generating components use a direct contact heat exchange structure with the coolant for heat dissipation, and the coolant is dissipated by a circulation pump and a fan with adjustable operating frequencies, and the operating power can be flexibly adjusted according to the heat dissipation needs, reducing the energy consumption of the device while meeting the heat dissipation requirements.

[0024] (2) The part below the mechanical compartment can further enhance the heat dissipation capacity and flexibility by opening ventilation holes on both sides and setting a second fan.

[0025] (3) By optimizing and adjusting the circulating flow path of the coolant, through the design of three-way valves, distributors, branch pipelines, internal partitions in the accommodation cavity, opening holes, etc., the flow of the coolant is more in line with the heat dissipation requirements and more flexible; the distributor and branch pipelines can enhance the stability and uniformity of the liquid flow, improving the uniformity of the fluid field and temperature field in the accommodation cavity.

[0026] (4) The design of the three-way valve and the partition of the accommodation cavity enable the coolant to have multiple circulating flow schemes, which can ensure the heat dissipation requirements of the core heat-generating components in the event of possible failures in the cooling system, without affecting the safe operation of the intelligent computing all-in-one machine, improving the stability of long-term operation; the coolant flows out concentratedly from the area where the core heat-generating components are located, which can strengthen the heat dissipation in this area and ensure the operation of the core heat-generating components.

[0027] (5) By setting one or more rotating blades in the accommodation cavity, the heat exchange efficiency of the coolant can be rapidly increased in a short time to meet the heat dissipation requirements of the functional components under different loads.

[0028] (6) It supports the plugging and replacement of core components such as GPU modules and pump bodies. The maintenance time is shortened from ≥40 minutes in the traditional solution to ≤5 minutes; the accommodation cavity is provided with expansion slots and backup opening holes, which can improve the expansion ability of the intelligent computing all-in-one machine and ensure the heat dissipation ability after expansion.

[0029] (7) By setting multiple temperature sensors and pressure sensors and combining control algorithms, the operating state of the coolant circulation system can be monitored in real time, and when there is insufficient heat dissipation, the cause of the failure can be identified, and the operating states of each component can be adjusted timely and reasonably, improving the safety redundancy of the system. Description of the Drawings

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 : Three-dimensional view of the intelligent computing all-in-one machine of the present invention;

[0032] Figure 2 : First exploded view of the intelligent computing all-in-one machine of the present invention;

[0033] Figure 3 : Second exploded view of the intelligent computing all-in-one machine of the present invention;

[0034] Figure 4 : Schematic diagram of the coolant circulation system of the intelligent computing all-in-one machine of the present invention.

[0035] Reference numerals:

[0036] 1 - housing; 2 - top cover; 3 - heat dissipation window; 4 - observation window; 5 - display screen; 6 - handle; 7 - aviation plug interface group; 8 - support feet; 9 - mechanical compartment; 10 - accommodation cavity; 11 - circulation pump; 12 - radiator; 13 - first fan; 14 - radiator inlet pipe; 15 - radiator outlet pipe; 16 - second fan; 17 - first ventilation hole; 18 - second ventilation hole; 21 - liquid supply main pipe; 22 - three-way valve; 23 - first liquid supply branch pipe; 24 - second liquid supply branch pipe; 25 - first liquid distributor; 26 - second liquid distributor; 27 - first branch pipeline; 28 - first opening hole; 29 - partition plate; 30 - gap; 31 - first accommodation space; 32 - second accommodation space; 33 - second branch pipeline; 34 - second opening hole; 35 - third opening hole; 36 - return liquid branch pipe; 37 - liquid collector; 38 - return liquid main pipe; 40 - non-core heating element; 41 - core heating element; 50 - slot; 51 - spare opening hole; 52 - rotating blade; 60 - first temperature sensor; 61 - first pressure sensor; 62 - second temperature sensor; 63 - second pressure sensor; 64 - third pressure sensor; 65 - pressure relief valve; 91 - partition plate; 92 - upper cover plate; 93 - lower bottom plate. Detailed implementation manners

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0038] Figure 1 This is a three-dimensional view of the intelligent computing all-in-one machine of the present invention. The intelligent computing all-in-one machine adopts immersion cooling and includes a housing 1, a top cover 2, a heat dissipation window 3, an observation window 4, a display screen 5, a handle 6, an aviation plug interface group 7, feet 8, a mechanical compartment 9, etc. The housing 1 and the top cover 2 define a space for accommodating the functional components of the intelligent computing all-in-one machine. There are feet 8 at the bottom of the housing 1 for stable support. Below the front of the housing 1 is the heat dissipation window 3, and at the upper left position above is the observation window 4 for the user to directly observe the working components inside the accommodation space, especially the operating state of the GPU. Above the observation window 4 is the display screen 5 for displaying the working state of the system. It can have a customized UI interface and touch function to meet the user's needs for controlling, operating, statistics, and display of various parameters or operating modes of the all-in-one machine, and can also display important alarm information (such as insufficient liquid level, pump overheating), and at the same time support audible and visual alarms (≥85dB buzzer), and can also be connected to a controller (not shown) to support real-time retrieval of the operating parameters of the intelligent all-in-one machine (for example, temperature, power consumption, network latency, etc.) and generate a heat dissipation efficiency curve graph. The handles 6 on both sides can be used to move the all-in-one machine, which is suitable for moving in different edge-side scenarios, improving the flexibility and scalability of the device. The aviation plug interface group 7 integrates industrial-grade I / O expansion interfaces (2×RJ45, 1×USB 3.0), a power module (aviation plug power module, switch module), and a display module (VGAJ interface, etc.) to support multi-device collaboration and low-latency data transmission (end-to-end latency ≤15ms). Inside the mechanical compartment 9, there is a circulation pump 11 for driving the coolant circulation and related pipelines (covered by a cover and temporarily invisible, which will be specifically described later).

[0039] As Figure 2 shown, it is the first exploded view of the intelligent computing all-in-one machine of the present invention. From Figure 2 it can be seen that there is an accommodation cavity 10 inside the housing 1. The core working components of the intelligent computing all-in-one machine (including heat-generating components such as CPU, GPU, storage module, communication module, etc.) are all placed inside the accommodation cavity 10. The coolant is also mainly accommodated inside the accommodation cavity 10 to cool the core working components. And there is a coolant circulation pipe on each side of the accommodation cavity (this is only schematic here and not the actual coolant pipeline design of the present invention. For details, please refer to the following detailed description). The two are respectively connected to the radiator (not shown temporarily) and the circulation pump 11 inside the mechanical compartment 9 to form a coolant circulation loop to realize the circulation flow of the coolant.

[0040] Figure 3This is the second exploded view of the intelligent computing all-in-one machine of the present invention. Through this view, the circulation pump 11, the radiator 12 inside the heat dissipation window 3 below the housing 1, and the first fan 13 that drives the heat dissipation medium (such as air) to flow horizontally through the radiator 12 can be clearly seen. The radiator 12 is correspondingly provided with a radiator inlet pipe 14 connected to the coolant return pipe and a radiator outlet pipe 15 connected to the return port of the circulation pump 11.

[0041] Figure 4 This is a schematic diagram of the coolant circulation system of the intelligent computing all-in-one machine of the present invention. As Figure 4 shown, the accommodation cavity 10 of the intelligent computing all-in-one machine is above, and the mechanical compartment 9 is below. The mechanical compartment 9 is divided into two parts by a partition plate 91. The upper part accommodates the radiator 12 and the first fan 13 behind the radiator 12, and the lower part accommodates the circulation pump 11. Further, a second fan 16 can be provided in the lower part, and first ventilation holes 17 are opened on both sides below the housing 1 (that is, in the lower parts of the two sides of the mechanical compartment 9), and a plurality of second ventilation holes 18 can also be opened on the partition plate 91. The second fan 16 functions to make the external air flow through the lower part of the mechanical compartment 9, and can also guide the external air to flow upward through the radiator 12 through the second ventilation holes 18 to further enhance the heat dissipation efficiency of the radiator 12. Furthermore, the start-stop and power of the first fan 13 and the second fan 16 can be reasonably set. According to different heat dissipation requirements or working modes, the air can be reasonably guided to flow along the expected path to meet the heat dissipation requirements. For example, in the normal mode, the power of the first fan 13 is higher than that of the second fan 16, so the air will be sucked into the lower part of the mechanical compartment 9 through the first ventilation holes 17 and flow upward through the second ventilation holes 18 and through the radiator 12, enabling more external air to flow through the radiator 12 to increase its heat dissipation capacity; when the heat dissipation requirement is small, in the low-power mode, the operating power of the first fan 13 can also be turned off or reduced. When it is turned off or less than the operating power of the second fan 16, the air will be sucked through the radiator 12 and downward through the second ventilation holes 18 into the lower part of the mechanical compartment 9 and flow out from the first ventilation holes 17 on both sides, thereby increasing the air flow speed and reducing the energy consumption. Such a spatial heat dissipation arrangement makes the heat dissipation of the intelligent all-in-one machine more flexible, has a stronger heat dissipation capacity and can reduce the energy consumption. Therefore, the intelligent computing all-in-one machine of the present invention can meet the designed heat dissipation requirements without externally setting a CDU and a secondary-side heat dissipation device, thereby reducing the size and floor area of the all-in-one machine and being able to be flexibly moved to meet the requirements of different scenarios.

[0042] The following will refer to Figure 4 to further illustrate the cooling circulation system. According to Figure 4, the cooling circulation system includes a circulation pump 11, a liquid supply main pipe 21, a three-way valve 22, a first liquid supply branch pipe 23, a second liquid supply branch pipe 24, a first liquid distributor 25 and a second liquid distributor 26. The circulation pump 11 is connected to the liquid supply main pipe 21, the liquid supply main pipe 21 is connected to the three-way valve 22. One port of the three-way valve 22 communicates with the first liquid supply branch pipe 23, and the other port communicates with the second liquid supply branch pipe 24. The first liquid supply branch pipe 23 extends vertically upward to the right side above the accommodation chamber 10 and is connected to the first liquid distributor 25. The first liquid distributor 25 is fixedly connected to a plurality of corresponding first opening holes 28 formed on the upper cover plate 92 of the accommodation chamber 10 through a plurality of first branch pipes 27, so as to supply cooling liquid to the right side inside the accommodation chamber 10 through the plurality of first branch pipes 27. A vertical partition plate 29 is arranged inside the accommodation chamber 10, which is fixedly connected to the upper cover plate 92 of the accommodation chamber 10 at the upper part and has a gap 30 with the lower bottom plate 93 of the accommodation chamber 10 at the lower part. The gap 30 forms a diversion channel for the cooling liquid, thereby communicating the first accommodation space 31 and the second accommodation space 32 separated by the vertical partition plate 29. Among them, the first accommodation space 31 is located on the left side of the accommodation chamber 10, and the second accommodation space 32 is located on the right side of the accommodation chamber 10. A plurality of first opening holes 28 are actually arranged on one side of the upper cover plate 92 corresponding to the second accommodation space 32, that is, the cooling liquid conveyed through the plurality of first branch pipes 27 flows into the second accommodation space 32 instead of the first accommodation space 31. The second liquid supply branch pipe 24 extends horizontally to the left at the position of the three-way valve 22 and is connected to the second liquid distributor 26. The second liquid distributor 26 is fixedly connected to a plurality of corresponding second opening holes 34 arranged on the lower bottom plate 93 of the accommodation chamber 10 through a plurality of second branch pipes 33. The plurality of second opening holes 34 are arranged on one side of the lower bottom plate 93 corresponding to the first accommodation space 31, so that the cooling liquid can be supplied to the first accommodation space 31 on the left side inside the accommodation chamber 10 through the plurality of second branch pipes 33. Through the above liquid supply structure design and the division of the accommodation chamber 10, separate liquid supply in different regions can be realized, that is, the cooling liquid can be selectively supplied to the first accommodation space 31 and / or the second accommodation space 32 according to needs to meet different heat dissipation requirements.

[0043] At the same time, by means of the gap 30 below the vertical partition plate 29, since the coolant flows in from the top of the second accommodation space 32, the coolant in the second accommodation space 32 can be pushed to flow to the first accommodation space 31 through the gap 30. A plurality of third opening holes 35 are provided on the side of the upper cover plate 92 corresponding to the first accommodation space 31, and a plurality of return liquid branches 36 are fixedly connected to the plurality of third opening holes 35 correspondingly, and the plurality of return liquid branches 36 are collected to the collector 37, and the other end of the collector 37 is connected to the return liquid main pipe 38. The return liquid main pipe 38 extends downward and is connected to the radiator liquid inlet pipe 14, so that the coolant returns to the inside of the radiator 12 for heat exchange. The radiator 12 makes the external air flow through the radiator 12 in the horizontal direction by means of the rotation of the first fan 13, and exchanges heat with the coolant inside the heat exchange tube of the radiator 12 and cools it down. The cooled coolant is connected to the return liquid port of the circulation pump 11 through the radiator liquid outlet pipe 15, so as to realize the cooling and return of the coolant. The coolant flows upward from the second opening hole 34 on the lower bottom plate 93 in the first accommodation space 31 and leaves the first accommodation space 31 from the third opening hole 35 .

[0044] The radiator 12 can adopt a microchannel heat exchanger. According to the size of the intelligent computing all-in-one machine and the heat dissipation requirements, a single-row, double-row or multi-row structure or A-type design can be adopted to maximize the contact area with the air to enhance heat exchange. Optionally, multiple partitions can be set in the manifold of the microchannel heat exchanger so that the coolant flows through each microchannel as evenly as possible to improve the heat dissipation efficiency. The circulation pump 11 selects a controllable and adjustable speed electric water pump, which can work continuously or intermittently and is equipped with self-diagnosis and fault feedback functions. Optionally, the circulation pump 11 is a centrifugal pump driven by a brushless DC motor. The first fan 13 and the second fan 16 are both axial flow fans, and they can realize variable frequency regulation, thereby adapting to different heat exchange requirements.

[0045] Below, refer to Figure 4, the working process of the coolant circulation system of the intelligent computing integrated machine is described. The coolant is pressurized by the self-circulation pump 11 and flows into the liquid supply main pipe 21, and then enters the three-way valve 22. The three-way valve 22 divides the coolant into two branches. The coolant entering the first liquid supply branch pipe 23 flows upward and enters the first liquid distributor 25, and then enters a number of first branch pipes 27 respectively and enters the second accommodation space 32 of the accommodation cavity 10 through a number of corresponding first opening holes 28 on the upper cover plate 92; the coolant flows downward in the second accommodation space 32 through a number of non-core heating elements 40, and exchanges heat with the heat exchange structures on the number of non-core heating elements 40, thereby reducing the temperature of the non-core heating elements 40; the coolant then enters the first accommodation space 31 through the gap 30 below the vertical partition plate 29; the coolant entering the second liquid supply branch pipe 24 through the three-way valve 22 flows horizontally into the second liquid distributor 26, and then enters a number of second branch pipes 33 respectively, enters the first accommodation space 31 through a number of corresponding second opening holes 34, converges with the coolant from the second accommodation space 32 and then flows upward through a number of core heating elements 41, and exchanges heat with the heat exchange structures on the number of core heating elements 41, thereby reducing the temperature of the core heating elements 41. A number of core heating elements 41 can adopt a copper fin direct contact heat exchange structure (thermal conductivity ≥ 400 W / m·K), and a number of non-core heating elements 40 can adopt an aluminum fin direct contact heat exchange structure. After heat exchange, the coolant enters a number of corresponding liquid return branch pipes 36 through a number of third opening holes 35 on the upper cover plate 92 of the accommodation cavity 10, and then converges into the liquid collector 37; the coolant flowing out of the liquid collector 37 enters the liquid return main pipe 38, and then flows into the radiator inlet pipe 14 and flows through the liquid microchannels in the radiator 12, exchanges heat with the external air and cools down, and then flows out of the radiator outlet pipe 15 and returns to the circulation pump 11, thus completing the circulating heat dissipation flow of the coolant.

[0046] According to the intelligent computing integrated machine of the present invention, a number of additional spare slots 50 are provided beside the core heating elements 41 already installed in the accommodation cavity 10, and new core heating elements (such as GPU and other elements) can be inserted according to needs. Thus, a number of spare opening holes 51 corresponding to the number of spare slots 50 are also provided on the upper cover plate 92 of the accommodation cavity 10, so as to open the spare opening holes 51 according to needs to meet the needs of coolant heat dissipation and flow after the core heating elements 41 are increased. In addition, inside the first accommodation space 31, one or more rotating blades 52 are installed below the number of core heating elements 41, which are turned on and work when needed to accelerate the flow of the coolant inside the first accommodation space 31 and strengthen the heat exchange between the coolant and the number of core heating elements 41. The rotating blade 52 has a control module and is driven by a variable frequency motor to achieve variable frequency adjustment.

[0047] For the intelligent computing integrated machine according to the present invention, a first temperature sensor 60 and a first pressure sensor 61 are provided on the coolant inlet pipe 14 of the radiator to monitor the temperature and pressure of the coolant flowing into the radiator 12, and a second temperature sensor 62 and a second pressure sensor 63 are provided on the coolant outlet pipe 15 of the radiator to monitor the temperature and pressure of the coolant flowing out of the radiator 12; a third pressure sensor 64 is provided on the upper cover plate 92 to monitor the pressure inside the accommodation chamber 10, and a pressure relief valve 65 is further provided to perform safety pressure relief when the pressure exceeds a preset safety threshold. In addition, a liquid injection port (not shown) may be provided on the upper cover plate 92 to perform coolant filling and emptying (connecting a suction pump) when it is necessary to replace or supplement the coolant. Of course, it is also possible to connect the return liquid main pipe 38 and the coolant inlet pipe 14 of the radiator through a detachable joint, and the coolant can be filled or emptied through the return liquid main pipe 38.

[0048] For the coolant circulation system of the intelligent computing integrated machine of the present invention, a controller (not shown) is further provided, which is communicatively connected to the first temperature sensor 60, the first pressure sensor 61, the second temperature sensor 62, the second pressure sensor 63, the third temperature sensor 64, the control module of the circulation pump 11, the control modules of the first fan 13 and the second fan 16, the control module of the rotating blade 52, and the three-way valve 22.

[0049] Next, a detailed description is given of the redundant safety control method for the coolant circulation system of the present invention:

[0050] S1: When it is monitored that the temperature value T detected by the first temperature sensor 60 exceeds the preset threshold T1, it indicates that the heat dissipation of the components inside the accommodation chamber 10 is insufficient;

[0051] S2: Further calculate the pressure difference △T between the first pressure sensor 61 and the second pressure sensor 63, and judge whether it is within the preset pressure difference range; if so, it is proved that the radiator 12 is not blocked or leaked and step S3 is executed; if not, it is prompted that the radiator 12 has a fault.

[0052] S3: Detect the rotational speed and / or current of the first fan 13 and the circulation pump 11, and judge whether they are within the set range; if so, step S4 is executed; if not, it is prompted that the first fan 13 and / or the circulation pump 11 has a fault;

[0053] S4: Increase the rotational speed of the circulation pump 11 and synchronously increase the rotational speed of the first fan 13 (because the coolant circulation is accelerated, more coolant flows through the radiator 12, and the rotational speed of the first fan 12 needs to be increased synchronously). After running for the first predetermined time t1, judge whether the temperature value T detected by the first temperature sensor 60 is still greater than the first preset threshold T1; if so, step S5 is executed; if not, the redundant safety control ends.

[0054] S5: Control the three-way valve 22 to gradually reduce the amount of coolant delivered to the first liquid delivery branch pipe 23 and gradually increase the amount of coolant delivered to the second liquid delivery branch pipe 24, so that more coolant flowing out of the circulation pump 11 directly flows into the first accommodation space 31 and flows upward through a plurality of core heating elements 41 to cool them; after operating for the second predetermined time t2, determine whether the temperature value T detected by the first temperature sensor 60 is still greater than the first preset threshold value T1; if so, execute step S6; if not, end the redundant safety control;

[0055] S6: Further open one or more rotating blades 52 to accelerate the flow of the coolant in the first accommodation space 31 to enhance heat exchange; after operating for the third preset time t3, determine whether the temperature value T detected by the first temperature sensor 60 is still greater than the first preset threshold value T1; if so, prompt that the coolant has failed and needs to be replaced; if not, end the redundant safety control.

[0056] The setting of the first preset threshold value T1 can be obtained by calculation using a large model based on various parameters such as the ambient temperature, ambient humidity, coolant type, coolant performance, type and / or quantity of the core heating elements, etc., or can be preset at the time of factory shipment.

[0057] Through the above redundant safety control method, the operating state of the coolant circulation system can be monitored in real time, and when heat dissipation is insufficient, the cause of the failure can be identified, and the operating states of various components can be adjusted in a timely and reasonable manner, improving the safety redundancy of the system.

[0058] The above has introduced in detail an immersion cooling intelligent computing all-in-one machine provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. For those of ordinary skill in the art, the technical solution of the present invention is not limited to the solution defined by the specific implementation manner. Technical solutions formed by other obvious changes that can be achieved based on the common general technical knowledge in the art are all within the protection scope of the present invention.

Claims

1. A coolant circulation system for an intelligent computing integrated machine, comprising a circulation pump (11), a liquid supply main pipe (21), a three-way valve (22), a first liquid supply branch pipe (23), a second liquid supply branch pipe (24), a liquid return main pipe (38), a radiator (12), a first fan (13), and a receiving cavity (10) for receiving coolant; characterized in that, The accommodation cavity (10) includes a first accommodation space (31) and a second accommodation space (32) separated by a vertical partition plate (29). There is a gap (30) below the vertical cavity partition plate (29) that connects the first accommodation space (31) and the second accommodation space (32). The upper cover plate (92) of the accommodation cavity (10) is provided with a number of first opening holes (28) in the part corresponding to the second accommodation space (32), and a number of third opening holes (35) in the part corresponding to the first accommodation space (31). The lower bottom plate (93) of the accommodation cavity (10) is provided with a number of second opening holes (34) in the part corresponding to the first accommodation space (31). A number of first opening holes (28) are connected to a first liquid distributor (25) through a number of first branch pipelines (27), a number of second opening holes (34) are connected to a second liquid distributor (26) through a number of second branch pipelines (33), and a number of third opening holes (35) are connected to a liquid collector (37) through a number of liquid return branch pipes (36). The first liquid distributor (25) and the second liquid distributor (26) are respectively connected to a three-way valve (22) through a first liquid supply branch pipe (23) and a second liquid supply branch pipe (24). The three-way valve (22) is connected to the outlet of a circulation pump (11) through a liquid supply main pipe (21). The liquid collector (37) is connected to a radiator inlet pipe (14) through a liquid return main pipe (38), and a radiator outlet pipe (15) is connected to the inlet of the circulation pump (11).

2. The coolant circulation system of the intelligent computing integrated machine according to claim 1, characterized in that: A plurality of core heating elements (41) are arranged in the first accommodation space (31), and a plurality of non-core heating elements (40) are arranged in the second accommodation space (32). A plurality of slots (50) are additionally arranged in the first accommodation space (31), and a plurality of spare opening holes (51) corresponding to the plurality of slots (50) are additionally arranged in the part of the upper cover plate (92) of the accommodation cavity (10) corresponding to the first accommodation space (31).

3. The coolant circulation system of the intelligent computing integrated machine according to claim 1, characterized in that: One or more rotating blades (52) are arranged in the first accommodation space (31) to be opened when needed, thereby enhancing the heat exchange between the coolant in the first accommodation space (31) and the plurality of core heating elements (41).

4. The coolant circulation system of the intelligent computing all-in-one machine according to any one of claims 1-3, characterized in that: A first temperature sensor (60) and a first pressure sensor (61) are arranged on the radiator inlet pipe (14), and a second temperature sensor (62) and a second pressure sensor (63) are arranged on the radiator outlet pipe (15). A third pressure sensor (64), a pressure relief valve (65) and a liquid injection port are arranged on the upper cover plate (92).

5. The coolant circulation system of the intelligent computing integrated machine according to any one of claims 1-3, characterized in that: The radiator (12) is a microchannel heat exchanger, and adopts a single-row, double-row, multi-row or A-type structure. The circulation pump (11) is an adjustable-speed electric water pump with self-diagnosis and fault feedback functions.

6. An intelligent computing all-in-one machine, comprising a storage space defined by a housing (1) and a top cover (2), wherein a storage cavity (10) is arranged above the storage space, and a mechanical compartment (9) is provided below the storage space, wherein a circulation pump (11), a radiator (12) and a first fan (13) located behind the radiator (12) are arranged in the mechanical compartment (9), and further comprising a coolant circulation system of the intelligent computing all-in-one machine as claimed in any one of claims 1 to 5.

7. The intelligent computing integrated machine according to claim 6, characterized in that: The mechanical compartment (9) is further divided into two parts by a partition plate (91), the upper part accommodating the radiator (12) and the first fan (13), and the lower part accommodating the circulation pump (11); and a second fan (16) is also arranged in the part below the mechanical compartment (9), a plurality of first ventilation holes (17) are respectively provided below two side surfaces of the housing (1), and a plurality of second ventilation holes (18) are provided on the partition plate (91) to connect the upper part and the lower part of the mechanical compartment (9).

8. The intelligent computing integrated machine according to any one of claims 6 or 7, characterized in that: A heat dissipation window (3) is provided at the bottom of the housing (1) in the front-to-back direction at a position corresponding to the radiator (12); an observation window (4) is provided at the top of the housing (1); a display screen (5) is provided above the observation window (4); handles (6) are provided above the two side surfaces of the housing (1); and an aviation plug interface group (7) is provided in the middle of one side surface of the housing (1), which integrates various interfaces such as an industrial-grade I / O expansion interface, a power module interface, and a display module interface.

9. The intelligent computing all-in-one machine according to claim 8, wherein: A first temperature sensor (60) and a first pressure sensor (61) are arranged on the radiator liquid inlet pipe (14), and a second temperature sensor (62) and a second pressure sensor (63) are arranged on the radiator liquid outlet pipe (15); a third pressure sensor (64), a pressure relief valve (65) and a liquid injection port are arranged on the upper cover plate (92); and a controller is further arranged, which is communicatively connected with the first temperature sensor (60), the first pressure sensor (61), the second temperature sensor (62), the second pressure sensor (63), the third pressure sensor (64), a control module of a circulation pump (11), a control module of a first fan (13) and a second fan (16), a control module of one or more rotary blades (52) and a three-way valve (22).

10. A redundant safety control method for an intelligent computing all-in-one machine as claimed in claim 9, comprising the following steps: S1: when it is monitored that the temperature value T detected by the first temperature sensor (60) exceeds a preset threshold value T1, it indicates that the heat dissipation of the heating element inside the accommodating cavity (10) is insufficient; S2: further calculating the pressure difference ΔT between the first pressure sensor (61) and the second pressure sensor (63) to determine whether it is within a preset pressure difference range; if so, it is proved that the radiator (12) is not blocked or leaking and step S3 is executed; if not, it is indicated that the radiator (12) is faulty; S3: Detect the rotational speed and / or current of the first fan (13) and the circulation pump (11), and determine whether they are within the set range. If so, execute step S4; if not, prompt a fault in the first fan (13) and / or the circulation pump (11). S4: Increase the rotational speed of the circulation pump (11) and simultaneously increase the rotational speed of the first fan (13). After running for the first predetermined time t1, determine whether the temperature value T detected by the first temperature sensor (60) is still greater than the first preset threshold T1. If so, execute step S5; if not, end the redundant safety control. S5: Control the three-way valve (22) to gradually reduce the amount of coolant delivered to the first liquid delivery branch pipe (23) and gradually increase the amount of coolant delivered to the second liquid delivery branch pipe (24), so that more of the coolant coming out of the circulation pump (11) directly flows into the first accommodation space (31) and flows upward through multiple core heating elements (41) to cool them. After running for the second predetermined time t2, determine whether the temperature value T detected by the first temperature sensor (60) is still greater than the first preset threshold T1. If so, execute step S6; if not, end the redundant safety control. S6: Further open one or more rotating blades (52) to accelerate the flow of the coolant in the first accommodation space (31) to enhance heat exchange. After running for the third preset time t3, determine whether the temperature value T detected by the first temperature sensor (60) is still greater than the first preset threshold T1. If so, prompt that the coolant has failed and needs to be replaced; if not, end the redundant safety control.

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