CN213092259U - Self-circulation immersion jet flow phase change liquid cooling heat dissipation device inside blade server shell - Google Patents
Self-circulation immersion jet flow phase change liquid cooling heat dissipation device inside blade server shell Download PDFInfo
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- CN213092259U CN213092259U CN202021444513.9U CN202021444513U CN213092259U CN 213092259 U CN213092259 U CN 213092259U CN 202021444513 U CN202021444513 U CN 202021444513U CN 213092259 U CN213092259 U CN 213092259U
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Abstract
The application discloses inside self-loopa submergence efflux phase transition liquid cooling heat abstractor of blade server shell, liquid cooling heat abstractor includes: the device comprises an immersion jet device and a refrigerant conveying device; the refrigerant conveying device is arranged at the bottom of the cavity and connected to the liquid inlet end of the immersion jet device, and the refrigerant conveying device is used for conveying the liquid refrigerant at the bottom of the cavity to the immersion jet device; the side wall at the cavity is fixed to the submergence fluidic device, and the submergence fluidic device sets up in heating element's offside, is provided with a plurality of jet nozzles among the submergence fluidic device, and jet nozzle passes through the sword shell runner and links to each other, and the sword shell runner is connected in refrigerant conveyor, and the liquid refrigerant that jet nozzle erupted is hit and is beaten on heating element. Through the technical scheme in this application, pass through the liquid refrigerant that the jet nozzle direct injection did not take place the phase transition in the sword shell to heating element on, take away the heat that heating element produced, promote the heat dispersion of liquid cooling server.
Description
Technical Field
The application relates to the technical field of immersion type liquid cooling servers, in particular to an immersion jet flow phase change liquid cooling heat dissipation device inside a blade server shell.
Background
The heat dissipation principle of the liquid cooling server is that working fluid is used as a medium for transferring intermediate heat, and the heat is transferred to a remote place from a hot area and then is cooled. Because the specific heat of liquid is much larger than that of air, the heat dissipation speed is much higher than that of air, and therefore the refrigeration efficiency is far higher than that of air-cooled heat dissipation.
Traditional immersion type liquid cooling server carries out data processing's in-process at the server through with the server mainboard submergence in the server knife shell that is equipped with liquid refrigerant, and heating element on the mainboard heats up, and when heating element's temperature was higher than the boiling point of refrigerant, liquid refrigerant boiling takes place the phase transition vaporization, produces a large amount of bubbles, absorbs the heat that heating element produced, takes away the heat when the bubble breaks away from heating element's surface to dispel the heat and reduce heating element's temperature.
At present, the heat flux density of the heating element of the supercomputer is further improved, the arrangement of the heating element is more and more dense, and the boiling bubbles prevent the liquid refrigerant from directly contacting with the surface of a heat source, so that the heat exchange cannot be carried out efficiently. The bubbles generated by the single mode of immersing the refrigerant for boiling cannot take away more heat, and the temperature of the heating element cannot be kept constant within the range lower than the upper limit of the high temperature of the heating element, so that the heating element is possibly burnt.
Thus, there is a need to explore better ways of dissipating heat based on this immersion liquid cooling.
SUMMERY OF THE UTILITY MODEL
The purpose of this application lies in: the liquid refrigerant which does not undergo phase change in the knife shell is directly sprayed onto the heating element through the jet nozzle, so that heat generated by the heating element is taken away, and the heat dissipation performance of the liquid cooling server is improved. Meanwhile, the flow control device is added at the position of the jet nozzle, and after the flow control device and the jet nozzle are combined, the heat dissipation of the heating element with local high heat flux density can be met when the main body heat dissipation requirement of the server mainboard is met, so that the computing capacity and the heat dissipation performance of the super-calculation server are further improved.
The technical scheme of the application is as follows: the utility model provides an inside self-loopa submergence efflux phase transition liquid cooling heat abstractor of blade server shell, liquid cooling heat abstractor is applicable to the blade server, and the blade server is provided with server sword shell and server mainboard, is provided with the cavity in the server sword shell, has held liquid refrigerant in the cavity, is provided with a plurality of heating element on the server mainboard, and heating element submergence in liquid refrigerant, liquid refrigerant boil vaporization after to heating element heat absorption, and liquid cooling heat abstractor includes: the device comprises an immersion jet device and a refrigerant conveying device; the refrigerant conveying device is arranged at the bottom of the cavity and connected to the liquid inlet end of the immersion jet device, and the refrigerant conveying device is used for conveying the liquid refrigerant at the bottom of the cavity to the immersion jet device; the side wall at the cavity is fixed to the submergence fluidic device, and the submergence fluidic device sets up in heating element's offside, is provided with a plurality of jet nozzles among the submergence fluidic device, and jet nozzle passes through the sword shell runner and links to each other, and the sword shell runner is connected in refrigerant conveyor, and the liquid refrigerant that jet nozzle erupted is hit and is beaten on heating element, and wherein, heating element's surface sculpture has little columnar structure.
In any one of the above technical solutions, further, the blade case flow channel is embedded in the side wall of the cavity, the blade case flow channel includes a plurality of flow channel branches which are branched step by step, and the tail ends of the flow channel branches are connected to the jet nozzle; the liquid cooling heat abstractor includes: a flow control device; the flow control device is arranged between the tail end of the flow channel branch and the jet flow nozzle and is used for adjusting the flow of the liquid refrigerant of the flow channel branch flow incident flow nozzle.
In any one of the above technical solutions, further, the liquid-cooled heat dissipating device further includes: a pressure detector and a pressure balancing device; the pressure detector is arranged at the top of the cavity and is electrically connected with the pressure balancing device, and the pressure detector is used for detecting the pressure value in the cavity; the pressure balancing device is configured to adjust from the closed state to the open state to balance the pressure inside the server blade when the received pressure value is determined to be greater than or less than the pressure threshold value.
In any one of the above technical solutions, further, the liquid-cooled heat dissipating device further includes: a liquid level controller; the liquid level controller is arranged above the side wall of the cavity and used for detecting the liquid level of the liquid refrigerant in the cavity.
In any one of the above technical solutions, further, the jet nozzle is obliquely disposed on a side wall of the immersion jet device, the jet nozzle is provided with a plurality of jet holes, and a distance between the jet holes and the heating element is a preset multiple of a diameter of the jet holes.
In any one of the above technical solutions, further, the jet nozzle is obliquely disposed on the sidewall of the immersion jet device, and an included angle between a plane where a jet end of the jet nozzle is located and a plane where the heating element is located is 45-75 °.
In any one of the above technical solutions, further, the jet nozzle is disposed on a side wall of the immersion jet device in an upward inclined manner.
In any one of the above technical solutions, further, a nozzle sealing groove is provided at the bottom of the jet nozzle, and a sealing gasket is installed in the nozzle sealing groove.
The beneficial effect of this application is:
according to the technical scheme, the submerged jet is adopted for enhanced boiling. Provide injection power by refrigerant conveyor, spout the liquid refrigerant by jet nozzle, directly spout on the heating element of high heat flux density, the bubble that makes the heating element heat dissipation in-process produce can break away from fast, and handle the surface of the heating element of high heat flux density, increase little columnar structure, can show and improve the core number of vaporization, and still help increasing the refrigerant disturbance in the server knife shell, with the heating element outside, the liquid refrigerant sprays on the heating element, can further improve heat transfer performance, make the heat exchange efficiency of this system improve several times than traditional pool boiling heat exchange efficiency.
For the whole server blade, the flow control device can be adjusted to adjust the flow of the refrigerant sprayed by the jet nozzle, so that the heating element with low heat flux density (small heat productivity) can be subjected to liquid cooling, and the heating element with high heat flux density (large heat productivity) can be subjected to liquid cooling. Therefore, when the system meets the main body heat dissipation requirement of the server mainboard, the heat dissipation of the heating component with local high heat flux density is met.
Drawings
The advantages of the above and/or additional aspects of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic block diagram of a self-circulating immersion jet phase change liquid cooling heat sink inside a blade server enclosure according to one embodiment of the present application;
FIG. 2 is a schematic diagram of an immersion jet device implementation according to one embodiment of the present application;
FIG. 3 is a schematic diagram of an implementation of an immersion jet device according to another embodiment of the present application;
FIG. 4 is a schematic view of a fluidic nozzle according to an embodiment of the present application;
FIG. 5 is a cross-sectional view of a fluidic nozzle according to one embodiment of the present application.
The system comprises a server mainboard 1, a heating element 2, a wall penetrating sealing electric connector 3, a jet nozzle 4, a refrigerant conveying device 5, a flow control device 6, a liquid inlet 7, a vapor outlet 8, a pressure balancing device 9, a pressure detector 10, a liquid level controller 11, a server knife shell 12, a jet spray hole 41, a jet horn 42 and a nozzle sealing groove 43.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
As shown in fig. 1, the present embodiment provides a self-circulation immersion jet phase change liquid cooling heat dissipation device inside a blade server shell, the liquid cooling heat dissipation device is suitable for a blade server, a condenser, a liquid storage tank, a circulation pump, a liquid supplement tank and other devices are arranged outside the blade server, a liquid refrigerant inside the blade server absorbs heat and changes phase, and then enters the condenser through a vapor outlet 8 arranged above the blade server to condense, so as to reform the liquid refrigerant, and then the liquid refrigerant passes through the liquid storage tank and the circulation pump, and enters the inside of the blade server again through a liquid inlet 7 arranged on the side of the blade server.
The blade server is provided with a server knife shell 12 and a server mainboard 1, a cavity is arranged in the server knife shell 12, a liquid refrigerant is contained in the cavity, a gas phase area is arranged above the liquid level, and a plurality of heating elements 2 with high heat flux density, such as GPU, CPU, memory and other electronic devices, are arranged on the server mainboard 1.
When the heating element 2 is subjected to liquid cooling heat dissipation, a certain amount of refrigerant needs to be injected into the cavity firstly, so that the heating element 2 is immersed below the liquid level of the liquid refrigerant, wherein the liquid inlet 7 is below the liquid level of the refrigerant, the gas outlet 8 is located above the gas phase region, and the inner diameter of the gas outlet 8 is larger than that of the liquid inlet 7 and is connected by adopting a quick sealing joint.
The liquid refrigerant absorbs heat to the heating element 2 and then boils and vaporizes, and in order to increase the heat exchange area (surface area) and enhance the heat transfer effect of the heating element 2 in the boiling and vaporizing process, the surface of the heating element 2 can be subjected to enhanced boiling treatment to increase the surface roughness, for example, a micro-column structure is formed on the surface of the heating element 2 by adopting a photo-etching technology or a dry etching technology.
It should be noted that the liquid refrigerant in this embodiment is a low-boiling-point non-conductive liquid, and has good compatibility with the server motherboard 1 material, and the boiling point of the liquid refrigerant is lower than the highest temperature defined by the surface of the heating element 2 with high heat flow density.
In this embodiment, in order to increase the disturbance to the refrigerant in the cavity, on one hand, the separation speed of the bubbles on the surface of the heating element 2 is increased, and on the other hand, the low-temperature refrigerant far away from the heating element 2 exchanges heat with the heating element 2, and an immersion jet device is introduced into the liquid-cooled heat dissipation device, and the ejected refrigerant is hit on the heating element 2, so as to enhance the boiling heat exchange.
In this embodiment, a CPU is used as the heating element 2, and the heat flux density is set to 80W/cm2The highest surface temperature of the CPU is not higher than 85 ℃, the number of the CPU is 6, the surface of each CPU is subjected to surface treatment, a micro-columnar structure is added, and the specific treatment mode adopts a photoetching technology to strengthen the boiling effect.
This liquid cooling heat abstractor includes: an immersion jet device and a refrigerant conveying device 5; the refrigerant conveying device 5 is arranged at the bottom of the cavity, and the refrigerant conveying device 5 is connected to the liquid inlet end of the immersed jet device.
As can be understood by those skilled in the art, in the immersed liquid cooling heat dissipation process, the temperature of the refrigerant far away from the heating element 2 is lower than that of the refrigerant near the heating element 2, so that the refrigerant conveying device 5 arranged at the bottom of the cavity can convey the liquid refrigerant far away from the heating element 2 at the bottom of the cavity to the immersed jet device, and the immersed jet device strikes the liquid refrigerant on the heating element 2, wherein the refrigerant conveying device 5 can be a variable-frequency immersed pump;
in this embodiment, the flow direction of the cooling medium is as shown by the arrow in fig. 1.
This submergence fluidic device fixes the lateral wall at the cavity, submergence fluidic device sets up in heating element 2's offside, be provided with a plurality of jet nozzles 4 among the submergence fluidic device, each heating element 2 is corresponding to at least one jet nozzle 4, jet nozzle 4 links to each other through the sword shell runner, the sword shell runner is connected in refrigerant conveyor 5, the liquid refrigerant that jet nozzle 4 erupted is beaten and is beaten on heating element 2, make the bubble that produces on heating element 2 in the refrigerant boiling heat dissipation in-process break away from fast, accelerate bubble production rate, improve the core number of vaporization, and then realize the effect that improves the radiating efficiency.
As shown in fig. 2, this embodiment shows an implementation manner of the immersion fluidic device, each CPU heating element 2 corresponds to one fluidic nozzle 4, the fluidic nozzles 4 are connected through a blade shell flow channel, the blade shell flow channel is embedded in the side wall of the cavity, the blade shell flow channel includes a plurality of flow channel branches which are branched step by step, the tail end of each flow channel branch is connected to one fluidic nozzle 4, the fluidic nozzle 4 is just opposite to the heating element 2, and the liquid refrigerant jetted by the fluidic nozzle 4 is distributed in an umbrella shape, and can completely cover the corresponding heating element 2.
The embodiment also shows an implementation manner of the immersion jet device, as shown in fig. 3, based on the above embodiment, the jet nozzle 4 is obliquely arranged on a side wall of the immersion jet device, the side wall is fixed on a side wall of the cavity, the jet nozzle 4 is provided with a plurality of jet holes 41 arranged in an array, the specific arrangement manner may be a staggered arrangement in a "5-6-5" manner, a distance between the jet holes 41 and the heating element 2 is a preset multiple of a diameter of the jet holes 41, and a value range of the preset multiple is 5-10.
Preferably, the jet spray holes 41 are one of cylindrical, conical, and funnel-shaped.
In the embodiment, as shown in fig. 4 and 5, the jet nozzle hole 41 is funnel-shaped, the diameter of the jet nozzle hole 41 is 1mm, and the jet nozzle hole 41 and the flow passage of the jet nozzle 4 are transitionally connected by using a jet bell 42, so as to reduce the flow resistance.
Further, the jet nozzle 4 is obliquely arranged on the side wall of the immersion jet device, an included angle between a plane where the jet end of the jet nozzle 4 is located and a plane where the heating element 2 is located is 45-75 degrees, the included angle is shown as an arrow in fig. 3, wherein the jet nozzle 4 is obliquely arranged on the side wall of the immersion jet device upwards.
In this embodiment, the maximum distance L between the jet nozzle hole 41 and the heating element 2 is set to 10mm, the included angle between the plane where the jet nozzle hole 41 is located and the plane where the heating element 2 is located is 75 ° counterclockwise, and the distances between the remaining jet nozzle holes 41 and the heating element 2 are reduced in equal proportion, and the range is 5-10 mm.
Further, the bottom of the jet nozzle 4 is provided with a nozzle sealing groove 43, and a sealing gasket is installed in the nozzle sealing groove 43 to ensure the sealing performance of the jet nozzle 4. The jet nozzle 4 is connected to the side wall of the cavity through a bolt in a sealing manner and is connected with the knife shell runner embedded in the side wall, so that the refrigerant conveying device 5 conveys liquid refrigerants to the jet nozzle 4 through the knife shell runner and then the liquid refrigerants are sprayed to the heating element 2 through the jet orifice 41.
Through the arrangement, on one hand, bubbles generated on the surface of the heating element 2 are facilitated to be separated upwards, and the impact of the jetted liquid refrigerant on the heating element 2 can be reduced by combining the diameter of the jet flow spray hole 41 and the distance between the jet flow spray hole 41 and the heating element 2, so that the heating element is prevented from being damaged by external impact; on the other hand, the cooling medium circulation in the cavity is facilitated, the cooling medium with high temperature flows around, the cooling medium transmission device 5 can provide the cooling medium with a certain angle to the jet flow nozzle 4, and the overall heat dissipation efficiency of the heat dissipation device is guaranteed.
Further, the liquid cooling heat abstractor includes: the flow rate control device 6 may be one of an electric valve, an electromagnetic valve, and a pneumatic valve. The flow control device 6 is arranged between the tail end of the flow channel branch and the jet flow nozzle 4, and the flow control device 6 is used for adjusting the flow of the liquid refrigerant entering the jet flow nozzle 4 from the flow channel branch.
In this embodiment, the flow control device 6 may be controlled by a conventional temperature adjustment method to adjust the flow rate of the refrigerant flowing into the incident flow nozzle 4, and the opening degree of the flow control device 6 is adjusted according to the difference in temperature of the corresponding heating element 2.
When the power consumption of one or some heating elements 2 is high and the power consumption of the other heating elements 2 is low, the flow control device 6 can be adjusted to increase the flow of the liquid refrigerant in the blade housing runner corresponding to the high-energy-consumption heating element 2, so that the heat dissipation of the heating element 2 with local high heat flux density is met, and the flow of the refrigerant in the blade housing runner corresponding to the low-energy-consumption heating element 2 is reduced, so that the overall energy consumption of the liquid cooling system is reduced.
Further, the liquid cooling heat sink further includes: a pressure detector 10 and a pressure balancing device 9; the pressure detector 10 is arranged at the top of the cavity, the pressure detector 10 is electrically connected to the pressure balancing device 9, and the pressure detector 10 is used for detecting the pressure value inside the cavity; the pressure balancing device 9 is configured to adjust from the closed state to the open state to balance the pressure inside the server blade when it is determined that the received pressure value is greater than or less than the pressure threshold value.
Specifically, the pressure inside the cavity is detected by the pressure detector 10, so that the pressure inside the cavity is controlled within a certain range, and when the pressure is too high or too low, the pressure is balanced by the pressure balancing device 9.
The pressure equalizing device 9 is configured to adjust from the closed state to the open state when it is determined that the received pressure value is greater than or less than the pressure threshold value. It should be noted that the pressure threshold is a pressure value range, and when the pressure threshold is smaller than the pressure threshold, it indicates that the internal pressure of the cavity is low, and otherwise, it indicates that the internal pressure of the cavity is high.
Further, the liquid cooling heat sink further includes: a liquid level controller 11; the liquid level controller 11 is disposed above the side wall of the cavity, the liquid level controller 11 is configured to detect a liquid level of a liquid refrigerant inside the cavity, when the liquid level is lower than a certain value, an external liquid replenishing tank is used to replenish the liquid refrigerant in the cavity, and when the liquid level rises, the liquid replenishing is stopped.
It should be noted that a through-wall sealed electrical connector 3 is further arranged on the side of the blade server, and a pin connector is used to penetrate through the cavity of the blade server and is sealed, so that the server motherboard 1 and the outside of the blade server can be electrically interacted.
In this embodiment, when the 6 CPU heating elements 2 are all set to operate at full load, the flow rate control device 6 is fully opened,
when the 6 CPU heating elements 2 are set to work under the same load but not full load, the liquid cooling heat dissipation and cooling are realized according to the heat of the CPU heating elements 2 by adjusting the frequency of the refrigerant conveying device 4 and further adjusting the flow and the flow speed of the refrigerant jet of the jet nozzle 4.
When the heat flux densities of 6 CPU heating elements 2 are set to be inconsistent, namely the heat dissipation requirements are different, the flow of the refrigerant which is jetted to a single heating element 2 is controlled by adjusting the flow control device 6, such as the opening of the electric valve, and the jet nozzles 4 corresponding to the heating elements 2 with different heat dissipation requirements are independently controlled, so that each heating element 2 works within a specified temperature range.
By using the immersion jet flow phase change liquid cooling system in the embodiment to perform immersion liquid cooling heat dissipation on the 6 CPU heating elements 2, the average surface temperature of the CPU is 75 ℃ and is less than the set maximum temperature of 85 ℃ through test, and the expected heat dissipation effect can be achieved.
The technical scheme of this application has been explained in detail in the above combination of the accompanying drawings, this application has proposed the inside self-loopa submergence efflux phase transition liquid cooling heat abstractor of blade server shell, liquid cooling heat abstractor is applicable to the blade server, the blade server is provided with server sword shell and server mainboard, be provided with the cavity in the server sword shell, liquid refrigerant has been held in the cavity, be provided with a plurality of heating element on the server mainboard, heating element submergence in liquid refrigerant, boiling vaporization after liquid refrigerant absorbs heat to heating element, liquid cooling heat abstractor includes: the device comprises an immersion jet device and a refrigerant conveying device; the refrigerant conveying device is arranged at the bottom of the cavity and connected to the liquid inlet end of the immersion jet device, and the refrigerant conveying device is used for conveying the liquid refrigerant at the bottom of the cavity to the immersion jet device; the side wall at the cavity is fixed to the submergence fluidic device, and the submergence fluidic device sets up in heating element's offside, is provided with a plurality of jet nozzles among the submergence fluidic device, and jet nozzle passes through the sword shell runner and links to each other, and the sword shell runner is connected in refrigerant conveyor, and the liquid refrigerant that jet nozzle erupted is hit and is beaten on heating element, and wherein, heating element's surface sculpture has little columnar structure. Through the technical scheme in this application, pass through the liquid refrigerant that the jet nozzle direct injection did not take place the phase transition in the sword shell to heating element on, take away the heat that heating element produced, promote the heat dispersion of liquid cooling server.
In the present application, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The shapes of the various elements in the drawings are illustrative and do not preclude the existence of certain differences from the actual shapes, and the drawings are used for the purpose of illustrating the principles of the present application and are not intended to limit the present application.
Although the present application has been disclosed in detail with reference to the accompanying drawings, it is to be understood that such description is merely illustrative and not restrictive of the application of the present application. The scope of the present application is defined by the appended claims and may include various modifications, adaptations, and equivalents of the subject application without departing from the scope and spirit of the present application.
Claims (8)
1. The self-circulation immersion jet flow phase change liquid cooling heat dissipation device is characterized in that the liquid cooling heat dissipation device is suitable for a blade server, the blade server is provided with a server knife shell (12) and a server mainboard (1), a cavity is arranged in the server knife shell (12), liquid refrigerants are contained in the cavity, a plurality of heating elements (2) are arranged on the server mainboard (1), the heating elements (2) are immersed in the liquid refrigerants, the liquid refrigerants are boiled and vaporized after the heating elements (2) absorb heat, and the liquid cooling heat dissipation device comprises: an immersion jet device and a refrigerant conveying device (5);
the refrigerant conveying device (5) is arranged at the bottom of the cavity, the refrigerant conveying device (5) is connected to the liquid inlet end of the immersion jet device, and the refrigerant conveying device (5) is used for conveying liquid refrigerants at the bottom of the cavity to the immersion jet device;
the immersion jet device is fixed on the side wall of the cavity and arranged on the opposite side of the heating element (2), a plurality of jet nozzles (4) are arranged in the immersion jet device, the jet nozzles (4) are connected through a knife shell flow channel, the knife shell flow channel is connected to the refrigerant conveying device (5), liquid refrigerant sprayed by the jet nozzles (4) is struck on the heating element (2),
wherein, the surface of the heating element (2) is etched with a micro-columnar structure.
2. The self-circulating immersion jet phase change liquid cooling heat sink inside a blade server shell according to claim 1, wherein the blade shell flow channel is embedded in the sidewall of the cavity, the blade shell flow channel comprises a plurality of flow channel branches which are divided step by step, and the tail ends of the flow channel branches are connected to the jet nozzle (4);
the liquid cooling heat abstractor includes: a flow rate control device (6);
the flow control device (6) is arranged between the tail end of the flow channel branch and the jet flow nozzle (4), and the flow control device (6) is used for adjusting the flow of the liquid refrigerant flowing into the jet flow nozzle (4) from the flow channel branch.
3. The self-circulating immersion jet phase change liquid cooled heat sink inside a blade server enclosure of claim 2, further comprising: a pressure detector (10) and a pressure balancing device (9);
the pressure detector (10) is arranged at the top of the cavity, the pressure detector (10) is electrically connected to the pressure balancing device (9), and the pressure detector (10) is used for detecting the pressure value inside the cavity;
the pressure balancing device (9) is configured to adjust from a closed state to an open state to balance the pressure inside the server blade when the received pressure value is determined to be greater than or less than a pressure threshold value.
4. The self-circulating immersion jet phase change liquid cooled heat sink inside a blade server enclosure of claim 2, further comprising: a liquid level controller (11);
the liquid level controller (11) is arranged above the side wall of the cavity, and the liquid level controller (11) is used for detecting the liquid level of the liquid refrigerant in the cavity.
5. The self-circulating immersion jet phase change liquid cooling heat sink inside a blade server shell according to claim 1, wherein the jet nozzle (4) is obliquely arranged on a side wall of the immersion jet device, the jet nozzle (4) is provided with a plurality of jet injection holes (41), and a distance between the jet injection holes (41) and the heating element (2) is a preset multiple of a diameter of the jet injection holes (41).
6. The self-circulating immersion jet phase change liquid cooling heat sink inside a blade server shell according to claim 1, wherein the jet nozzle (4) is obliquely arranged on a side wall of the immersion jet device, and an included angle between a plane where a jet end of the jet nozzle (4) is located and a plane where the heating element (2) is located is 45-75 °.
7. The self-circulating immersion jet phase change liquid cooling heat sink inside a blade server enclosure of claim 6 wherein the jet nozzle (4) is disposed at the side wall of the immersion jet means with an upward inclination.
8. The self-circulating immersion jet phase change liquid cooling heat sink inside a blade server shell according to any one of claims 5 to 7, wherein a nozzle sealing groove (43) is arranged at the bottom of the jet nozzle (4), and a sealing gasket is installed inside the nozzle sealing groove (43).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021444513.9U CN213092259U (en) | 2020-07-21 | 2020-07-21 | Self-circulation immersion jet flow phase change liquid cooling heat dissipation device inside blade server shell |
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| CN202021444513.9U CN213092259U (en) | 2020-07-21 | 2020-07-21 | Self-circulation immersion jet flow phase change liquid cooling heat dissipation device inside blade server shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115023075A (en) * | 2022-06-02 | 2022-09-06 | 超聚变数字技术有限公司 | Computing equipment and cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115023075A (en) * | 2022-06-02 | 2022-09-06 | 超聚变数字技术有限公司 | Computing equipment and cabinet |
| CN115023075B (en) * | 2022-06-02 | 2023-11-03 | 超聚变数字技术有限公司 | Computing equipment and cabinet |
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