CN113031727B - Coupling heat dissipation control method and system for server wind-liquid integrated heat dissipation system - Google Patents
Coupling heat dissipation control method and system for server wind-liquid integrated heat dissipation system Download PDFInfo
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- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
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- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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Abstract
The invention discloses a coupling heat dissipation control method of a server air-liquid integrated heat dissipation system, which comprises the following steps: detecting the current cooling liquid temperature T, the current main chip temperature Tx and the current auxiliary chip temperature Ty; adjusting the valve opening of a cooling liquid inlet valve according to the difference between the current cooling liquid temperature T and the set cooling liquid temperature Td, so that T is approximately equal to Td; adjusting the rotating speed of a coolant inlet pump according to the difference between the current main chip temperature Tx and the main chip set temperature Txd so that Tx approaches to be smaller than Txd; and adjusting the rotating speed of the fan according to the difference value between the current auxiliary chip temperature Ty and the auxiliary chip set temperature Tyd so as to enable Ty to be smaller than Tyd. The invention can improve the temperature control precision of heating components, give consideration to the heat dissipation requirements of the main chip and the auxiliary chip, and expand the wind-liquid heat dissipation regulation control dimension of the server. The invention also discloses a coupling heat dissipation control system of the server wind-liquid integrated heat dissipation system, which has the beneficial effects as described above.
Description
Technical Field
The invention relates to the technical field of servers, in particular to a coupling heat dissipation control method of a wind-liquid comprehensive heat dissipation system of a server. The invention also relates to a coupling heat dissipation control system of the server wind-liquid integrated heat dissipation system.
Background
With the development of the electronic technology in China, more and more electronic devices have been widely used.
Servers are important components in electronic devices, and are devices that provide computing services. Since the server needs to respond to and process the service request, the server generally has the capability of assuming and securing the service. The server is divided into a file server, a database server, an application server, a WEB server and the like according to different service types provided by the server.
In the big data era, a large number of IT devices are centrally located in a data center. These data centers include various types of servers, storage, switches, and a large number of cabinets and other infrastructure. Each type of IT equipment is composed of various hardware boards, such as a computing module, a memory module, a chassis, a fan module, and the like. The integrated installation of various modules in the server generates a large amount of heat, and therefore, the heat needs to be dissipated in time. Among numerous heat dissipation designs of servers, air cooling and liquid cooling are combined to be the most used design mode in various application scenes.
In the wind-liquid integrated heat dissipation system of the server, after absorbing heat at a main chip of a heavy-point heat dissipation component such as a CPU, the cooling liquid enters a CDU (central-water Distribution Unit) for heat exchange, and realizes circulation flow. The CDU includes components such as a liquid inlet pump for introducing a coolant, a liquid inlet valve for controlling a flow rate of the coolant, a heat exchanger for performing heat exchange and temperature reduction on the coolant, a temperature sensor for detecting a temperature of the coolant, a pressure sensor for detecting a pressure of the coolant, and a flow meter for detecting a flow rate of the coolant. Meanwhile, the auxiliary chips near the important heat generating components, such as the hard disk management chip, are generally cooled by a fan, and certainly, the fan also cools the main chip.
At present, after temperature detection is generally performed on a main chip, the temperature control of the main chip is realized by performing single adjustment on the pressure or flow of cooling liquid and performing single adjustment on the pressure or flow of cold air in a negative feedback mode in the existing server air-liquid comprehensive heat dissipation system.
Therefore, how to improve the temperature control accuracy of the heating component, give consideration to the heat dissipation requirements of the main chip and the auxiliary chip, and extend the dimension of the wind-liquid heat dissipation adjustment control of the server is a technical problem for those skilled in the art.
Disclosure of Invention
The invention aims to provide a coupling heat dissipation control method of a server wind-liquid integrated heat dissipation system, which can improve the temperature control precision of a heating component, give consideration to the heat dissipation requirements of a main chip and an auxiliary chip and expand the regulation and control dimensionality of the server wind-liquid heat dissipation. The invention also aims to provide a coupling heat dissipation control system of the wind-liquid integrated heat dissipation system of the server.
In order to solve the technical problem, the invention provides a coupling heat dissipation control method of a wind-liquid comprehensive heat dissipation system of a server, which comprises the following steps:
detecting the current cooling liquid temperature T, the current main chip temperature Tx and the current auxiliary chip temperature Ty;
adjusting the valve opening of a cooling liquid inlet valve according to the difference between the current cooling liquid temperature T and the set cooling liquid temperature Td so as to control the flow of the cooling liquid to make the current cooling liquid temperature T approximately equal to the set cooling liquid temperature Td;
adjusting the rotating speed of a cooling liquid inlet pump according to the difference value between the current main chip temperature Tx and the main chip set temperature Txd so as to control the flow of the cooling liquid to enable the current main chip temperature Tx to be smaller than the main chip set temperature Txd;
and adjusting the rotating speed of the fan according to the difference value between the current auxiliary chip temperature Ty and the auxiliary chip set temperature Tyd so as to control the flow of cold air to enable the current auxiliary chip temperature Ty to approach to be less than the auxiliary chip set temperature Tyd.
Preferably, after adjusting the rotational speed of coolant liquid feed pump, still include:
detecting the current cooling liquid pressure P;
and adjusting the rotating speed of the cooling liquid inlet pump according to the difference value between the current cooling liquid pressure P and the cooling liquid set pressure Pd so as to control the flow of the cooling liquid to enable the current cooling liquid pressure P to be smaller than the cooling liquid set pressure Pd.
Preferably, the adjusting the valve opening of the coolant inlet valve according to the difference between the current coolant temperature T and the coolant set temperature Td specifically includes:
if T-Td is greater than K1, increasing the valve opening of a cooling liquid inlet valve;
if T-Td < -K1, reducing the valve opening of a cooling liquid inlet valve;
if the T-Td belongs to (-K1, K1), keeping the current valve opening degree of a cooling liquid inlet valve;
wherein K1>0.
Preferably, when the valve opening of the cooling liquid inlet valve is adjusted, the single adjustment amount is 1% -5%.
Preferably, the adjusting the rotation speed of the coolant inlet pump according to the difference between the current main chip temperature Tx and the main chip set temperature Txd specifically includes:
if Tx-Txd is greater than K2, increasing the rotating speed of a liquid inlet pump of the cooling liquid;
if Tx-Txd < -K2, reducing the rotating speed of a cooling liquid inlet pump;
if Tx-Txd belongs to (-K2, K2), keeping the current rotating speed of the cooling liquid inlet pump;
wherein K2>0.
Preferably, when the rotating speed of the cooling liquid inlet pump is adjusted, the single adjustment amount is 1% -5%.
Preferably, the method for adjusting the rotation speed of the coolant inlet pump according to the difference between the current coolant pressure P and the coolant set pressure Pd specifically comprises:
if P-Pd is greater than K3, reducing the rotating speed of the cooling liquid inlet pump;
if P-Pd < -K3, increasing the rotating speed of the cooling liquid inlet pump;
if the P-Pd belongs to (-K3, K3), keeping the current rotating speed of the cooling liquid inlet pump;
wherein K3>0.
Preferably, the adjusting the rotation speed of the fan according to the difference between the current auxiliary chip temperature Ty and the auxiliary chip set temperature Tyd specifically includes:
if Ty-Tyd is greater than K4, the rotating speed of the fan is increased;
if Ty-Tyd < -K4, reducing the rotating speed of the fan;
if the Ty-Tyd belongs to (-K4, K4), keeping the current rotating speed of the fan;
wherein K4>0.
The invention also provides a coupling heat dissipation control system of the server wind-liquid integrated heat dissipation system, which comprises the following components:
the primary detection module is used for detecting and detecting the current cooling liquid temperature T, the current main chip temperature Tx and the current auxiliary chip temperature Ty;
the first control module is used for adjusting the valve opening of the cooling liquid inlet valve according to the difference value between the current cooling liquid temperature T and the set cooling liquid temperature Td so as to control the flow of the cooling liquid and enable the current cooling liquid temperature T to be approximately equal to the set cooling liquid temperature Td;
the second control module is used for adjusting the rotating speed of the cooling liquid inlet pump according to the difference value between the current main chip temperature Tx and the main chip set temperature Txd so as to control the flow of the cooling liquid and enable the current main chip temperature Tx to be smaller than the main chip set temperature Txd;
and the third control module is used for adjusting the rotating speed of the fan according to the difference value between the current auxiliary chip temperature Ty and the auxiliary chip set temperature Tyd so as to control the flow of cold air to enable the current auxiliary chip temperature Ty to approach to or be lower than the auxiliary chip set temperature Tyd.
Preferably, the method further comprises the following steps:
the secondary detection module is used for detecting the current cooling liquid pressure P;
and the fourth control module is used for adjusting the rotating speed of the cooling liquid inlet pump according to the difference value between the current cooling liquid pressure P and the cooling liquid set pressure Pd so as to control the flow of the cooling liquid to enable the current cooling liquid pressure P to be smaller than the cooling liquid set pressure Pd.
The coupling heat dissipation control method of the server wind-liquid integrated heat dissipation system mainly comprises four steps, wherein in the first step, the current temperature T of cooling liquid in the server wind-liquid integrated heat dissipation system, the current temperature Tx of an important heat dissipation component (a main chip) and the current temperature Ty of an auxiliary heat dissipation component (an auxiliary chip) are detected firstly. In the second step, the detected current coolant temperature T is compared with a preset coolant set temperature Td, the size and the difference between the detected current coolant temperature T and the preset coolant set temperature Td are determined, and the valve opening of the coolant inlet valve is adjusted according to the calculated difference between the detected current coolant temperature T and the preset coolant set temperature Td to increase, decrease or maintain the valve opening, so that the flow rate of the coolant is controlled by controlling the valve opening, and the current coolant temperature T gradually approaches to or equals to the coolant set temperature Td. Generally, the larger the opening of the cooling liquid inlet valve, the larger the flow rate of the cooling liquid, and the lower the temperature of the cooling liquid, and vice versa. In the third step, the detected current main chip temperature Tx is compared with the preset main chip set temperature Txd, the size and the difference of the detected current main chip temperature Tx and the preset main chip set temperature Txd are judged, the rotating speed of the cooling liquid inlet pump is adjusted according to the calculated difference of the detected current main chip temperature Tx and the preset main chip set temperature Txd, the rotating speed of the cooling liquid inlet pump is increased, decreased or maintained, the flow rate of the cooling liquid is controlled by controlling the rotating speed of the cooling liquid inlet pump, and then the current main chip temperature Tx is close to being smaller than the main chip set temperature Txd. Generally, the higher the rotation speed of the cooling liquid inlet pump is, the larger the flow rate of the cooling liquid is, the lower the temperature of the main chip is, and vice versa. In the fourth step, the detected current auxiliary chip temperature Ty is compared with a preset auxiliary chip set temperature Tyd, the size and the difference value of the two are judged, the rotating speed of the fan is adjusted according to the calculated difference value of the two, the rotating speed of the fan is increased, decreased or maintained, the flow of cold air is controlled by controlling the rotating speed of the fan, and the current auxiliary chip temperature Ty is close to or less than the auxiliary chip set temperature Tyd. Generally, the higher the rotation speed of the fan, the higher the flow rate of the cold air, and the lower the temperature of the auxiliary chip, and vice versa. Therefore, the coupling heat dissipation control method of the server wind-liquid integrated heat dissipation system provided by the invention can be used for respectively adjusting the valve opening of the cooling liquid inlet valve, the rotating speed of the cooling liquid inlet pump and the rotating speed of the fan by detecting the temperature of the cooling liquid, the temperature of the main chip and the temperature of the auxiliary chip and utilizing the difference value of the temperature of the cooling liquid, the temperature of the main chip and the temperature of the auxiliary chip and the respective set temperature, so as to realize the control of the temperature of the cooling liquid, the temperature of the main chip and the temperature of the auxiliary chip, improve the temperature control precision of heating components, give consideration to the heat dissipation requirements of the main chip and the auxiliary chip and expand the liquid cooling heat dissipation regulation control dimensionality of the server.
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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a method according to an embodiment of the present invention.
Fig. 2 is a block diagram of an embodiment of the present invention.
Wherein, in fig. 2:
the device comprises a primary detection module-1, a first control module-2, a second control module-3, a third control module-4, a secondary detection module-5 and a fourth control module-6.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a method according to an embodiment of the present invention.
In a specific embodiment provided by the present invention, the coupling heat dissipation method of the server wind-liquid integrated heat dissipation system mainly includes four steps, which are respectively:
s1, detecting the current cooling liquid temperature T, the current main chip temperature Tx and the current auxiliary chip temperature Ty.
S2, adjusting the valve opening of the cooling liquid inlet valve according to the difference value between the current cooling liquid temperature T and the set cooling liquid temperature Td so as to control the flow of the cooling liquid to enable the current cooling liquid temperature T to be approximately equal to the set cooling liquid temperature Td.
And S3, adjusting the rotating speed of the cooling liquid inlet pump according to the difference value between the current main chip temperature Tx and the main chip set temperature Txd so as to control the flow of the cooling liquid to enable the current main chip temperature Tx to be smaller than the main chip set temperature Txd.
And S4, adjusting the rotating speed of the fan according to the difference value between the current auxiliary chip temperature Ty and the auxiliary chip set temperature Tyd so as to control the flow of cold air to enable the current auxiliary chip temperature Ty to approach to a temperature which is less than an auxiliary chip set temperature Tyd.
In step S1, the main contents are to detect the current temperature T of the coolant in the server air-liquid integrated heat dissipation system, the current temperature Tx of the important heat dissipation component (primary chip), and the current temperature Ty of the secondary heat dissipation component (secondary chip).
Specifically, the server air-liquid integrated heat dissipation system mainly performs heat dissipation control through the CDU, detects the temperature of the cooling liquid through a temperature sensor carried inside the CDU, detects the pressure of the cooling liquid through a pressure sensor, and detects the flow rate of the cooling liquid through a flow meter. The temperature of the main chip and the auxiliary chip is mainly sensed by a BMC (Baseboard Management Controller) or the like.
In step S2, the detected current coolant temperature T is compared with a preset coolant set temperature Td, the magnitude and difference of the two are determined, and the valve opening of the coolant inlet valve is adjusted according to the difference calculated by the two to increase, decrease or maintain the valve opening, so as to control the flow rate of the coolant by controlling the valve opening, thereby gradually making the current coolant temperature T equal to the coolant set temperature Td. Generally, the larger the opening of the cooling liquid inlet valve, the larger the flow rate of the cooling liquid, and the lower the temperature of the cooling liquid, and vice versa. The set temperature Td of the cooling fluid is generally empirically determined based on the reasonable temperature of the cooling fluid, such as 10-30 deg.c, when the server is in a normal operation state.
In step S3, the detected current main chip temperature Tx is compared with a preset main chip set temperature Txd, the magnitude and the difference between the detected current main chip temperature Tx and the preset main chip set temperature Txd are determined, and the rotation speed of the coolant inlet pump is adjusted according to the calculated difference between the detected current main chip temperature Tx and the preset main chip set temperature Txd, so as to increase, decrease or maintain the rotation speed of the coolant inlet pump, thereby controlling the flow rate of the coolant by controlling the rotation speed of the coolant inlet pump, and further making the current main chip temperature Tx approximately less than the main chip set temperature Txd. Generally, the higher the rotation speed of the cooling liquid inlet pump, the larger the flow rate of the cooling liquid, the lower the temperature of the main chip, and vice versa. The main chip set temperature Txd is generally empirically determined as the allowable chip temperature of each key heat dissipation component, such as 20-60 ℃, when the server is in a normal operation state.
In step S4, the detected current auxiliary chip temperature Ty is compared with a preset auxiliary chip set temperature Tyd, the magnitude and the difference between the detected current auxiliary chip temperature Ty and the preset auxiliary chip set temperature 5363 are determined, and the rotating speed of the fan is adjusted according to the calculated difference to increase, decrease or maintain the rotating speed of the fan, so that the flow rate of the cold air is controlled by controlling the rotating speed of the fan, and the current auxiliary chip temperature Ty approaches to be less than the auxiliary chip set temperature Tyd. Generally, the higher the speed of the fan, the greater the cooling flow and the lower the temperature of the secondary chip, and vice versa. The auxiliary chip set temperature Tyd here refers to the allowable chip temperature of each secondary heat sink component, such as 20-60 ℃ when the server is in a normal operating state according to experience.
Therefore, the coupling heat dissipation control method of the server air-liquid integrated heat dissipation system provided by the embodiment simultaneously detects the temperature of the cooling liquid, the temperature of the main chip and the temperature of the auxiliary chip, and simultaneously adjusts the valve opening of the cooling liquid inlet valve, the rotating speed of the cooling liquid inlet pump and the rotating speed of the fan by using the temperature of the cooling liquid, the temperature of the main chip and the temperature of the auxiliary chip and the difference value of the set temperature respectively, so as to realize the control of the temperature of the cooling liquid, the temperature control precision of the heating component can be improved, the heat dissipation requirements of the main chip and the auxiliary chip are considered, and the liquid cooling heat dissipation adjustment control dimensionality of the server is expanded.
In addition, considering that after the rotating speed of the coolant liquid inlet pump is adjusted, not only can the flow rate of the coolant liquid be rapidly adjusted, but also the pressure of the coolant liquid can be influenced, the pressure of the coolant liquid also has influence on the heat dissipation efficiency, and when the pressure of the coolant liquid is large, the liquid cooling pipe fitting is adversely affected, and for this reason, the control on the pressure of the coolant liquid is additionally arranged in the embodiment.
Specifically, the current cooling liquid pressure P is first detected by a pressure sensor or the like. Secondly, the detected current cooling liquid pressure P is compared with the preset cooling liquid set pressure Pd, the size and the difference of the detected current cooling liquid pressure P and the preset cooling liquid set pressure Pd are judged, the rotating speed of the cooling liquid inlet pump is adjusted according to the calculated difference of the detected current cooling liquid pressure P and the preset cooling liquid set pressure Pd, the rotating speed of the cooling liquid inlet pump is increased, decreased or maintained, the flow rate of the cooling liquid is controlled in a mode of controlling the rotating speed of the cooling liquid inlet pump, and then the current cooling liquid pressure P is close to be smaller than the cooling liquid set pressure Pd. Generally, the higher the rotation speed of the cooling liquid inlet pump is, the larger the flow rate of the cooling liquid is, the larger the pressure of the cooling liquid is, and vice versa.
In this embodiment, the adjustment of the valve opening of the coolant inlet valve according to the difference between the current coolant temperature T and the coolant set temperature Td is specifically divided into three cases:
if the current coolant temperature T is greater than the coolant set temperature Td and the difference is greater than K1, which indicates that the coolant temperature is too high and the heat absorption effect is not good, the valve opening of the coolant inlet valve needs to be increased to increase the flow of the coolant, so that the coolant temperature of the inlet liquid is rapidly reduced and approaches to the coolant set temperature Td;
if the current coolant temperature T is less than the coolant set temperature Td and the difference is less than-K1, which indicates that the coolant temperature is too low and is likely to have adverse effects on the stable operation of the chip, the valve opening of the coolant inlet valve needs to be properly reduced to reduce the flow of the coolant, so that the temperature of the coolant entering the liquid is rapidly increased and approaches to the coolant set temperature Td;
if the current coolant temperature T is close to the coolant temperature Td and the difference between the current coolant temperature T and the coolant temperature Td is between-K1 and K1, the coolant temperature is appropriate and reasonable, and the current valve opening of the coolant inlet valve can be maintained without any adjustment.
In general, K1 may be taken to be 2 to 3 ℃.
Furthermore, when the valve opening of the cooling liquid inlet valve is adjusted, the single adjustment amount is generally between 1% and 5%, that is, the change rate of the valve opening is 1% to 5% of the full opening.
In this embodiment, the method specifically includes three conditions for adjusting the rotation speed of the coolant inlet pump according to the difference between the current chip temperature Tx and the chip set temperature Txd:
if the current main chip temperature Tx is greater than the main chip set temperature Txd and the difference is greater than K2, the main chip temperature is too high, the running state is bad, at the moment, the rotating speed of a cooling liquid inlet pump needs to be increased to improve the flow of cooling liquid, so that the cooling effect of the cooling liquid is enhanced, the main chip temperature is rapidly reduced and approaches to the main chip set temperature Txd;
if the current main chip temperature is lower than the main chip set temperature Txd and the difference is lower than-K2, the temperature of the main chip is too low, which is easy to have adverse effect on the stable operation of the chip, and at this time, the rotating speed of a cooling liquid inlet pump needs to be properly reduced to reduce the flow of the cooling liquid, so that the cooling effect of the cooling liquid is properly reduced, the temperature of the main chip is quickly increased and approaches to the main chip set temperature Txd;
if the current main chip temperature Tx is close to the main chip set temperature Txd and the difference between the current main chip temperature Tx and the main chip set temperature Txd is-K2 to K2, the main chip temperature is in a proper range, the running state is good, no adjustment is needed at the moment, and the current rotating speed of the cooling liquid inlet pump can be maintained.
In general, K2 may be taken to be 2 to 3 ℃.
Furthermore, when the rotating speed of the cooling liquid inlet pump is adjusted, the single adjustment amount is generally 1% -5%, namely the change rate of the rotating speed is 1% -5% of the current rotating speed.
For adjusting the rotation speed of the coolant inlet pump according to the difference between the current coolant pressure P and the coolant set pressure Pd, in this embodiment, three cases are specifically distinguished:
if the current cooling liquid pressure P is greater than the set cooling liquid pressure Pd and the difference value is greater than K3, the cooling liquid pressure is too high, the pressure of the pipe wall is large, and material loss and leakage accidents are easy to occur, at the moment, the rotating speed of a cooling liquid inlet pump needs to be reduced to properly reduce the flow of the cooling liquid, so that the cooling liquid pressure is rapidly reduced and approaches to be less than the set cooling liquid pressure Pd;
if the current cooling liquid pressure P is less than the cooling liquid set pressure Pd and the difference value is less than-K3, the pressure of the cooling liquid is too low, the flow rate of the cooling liquid is slow, and the heat absorption and heat exchange efficiency is low, at this time, the rotating speed of a cooling liquid inlet pump needs to be increased to properly increase the flow rate and the flow rate of the cooling liquid, so that the cooling liquid pressure is rapidly increased and approaches to be less than the cooling liquid set pressure Pd;
if the current cooling liquid pressure P is closer to the cooling liquid set pressure Pd, and the difference value between the current cooling liquid pressure P and the cooling liquid set pressure Pd is between-K3 and K3, the cooling liquid pressure is in a proper range, the running state is good, at the moment, any adjustment is not needed, and the current rotating speed of the cooling liquid inlet pump can be maintained.
In general, K3 may be from 0.1 to 0.2bar.
Furthermore, when the rotating speed of the cooling liquid inlet pump is adjusted, the single adjustment amount is generally 1% -5%, namely the change rate of the rotating speed is 1% -5% of the current rotating speed.
In the present embodiment, the method specifically includes three cases for adjusting the rotation speed of the fan according to the difference between the current auxiliary chip temperature Ty and the auxiliary chip set temperature Tyd:
if the temperature Ty of the current auxiliary chip is higher than the set temperature Tyd of the auxiliary chip and the difference value is higher than K4, it indicates that the temperature of the auxiliary chip is too high and the operation state is bad, and at this time, the rotating speed of the fan needs to be increased to improve the flow rate of cold air, so that the cooling effect of the cold air is enhanced, the temperature of the auxiliary chip is rapidly reduced and approaches to the set temperature Tyd of the auxiliary chip;
if the current temperature of the auxiliary chip is less than the set temperature Tyd of the auxiliary chip and the difference value is less than-K4, it is indicated that the temperature of the auxiliary chip is too low, which is easy to have adverse effect on the stable operation of the auxiliary chip, and at this time, the rotating speed of the fan needs to be properly reduced to reduce the flow rate of cold air, so that the cooling effect of the cold air is properly reduced, the temperature of the auxiliary chip is quickly increased, and approaches to the set temperature Tyd of the auxiliary chip;
if the current auxiliary chip temperature Ty is close to the auxiliary chip set temperature Tyd and the difference between-K4 and K4 indicates that the auxiliary chip temperature is in a proper range and the operation state is good, no adjustment is needed at this time, and the current rotating speed of the fan can be maintained.
In general, K4 may be taken to be 2 to 3 ℃.
Furthermore, when the rotation speed of the fan is adjusted, the single adjustment amount is generally between 1% and 5%, that is, the change rate of the rotation speed is 1% to 5% of the current rotation speed.
As shown in fig. 2, fig. 2 is a block diagram of an embodiment of the present invention.
The embodiment further provides a coupling heat dissipation control system of the server air-liquid integrated heat dissipation system, which mainly comprises a primary detection module 1, a first control module 2, a second control module 3 and a third control module 4.
The primary detection module 1 is mainly used for detecting and detecting the current coolant temperature T, the current main chip temperature Tx and the current auxiliary chip temperature Ty. The first control module 2 is mainly configured to adjust a valve opening of the coolant inlet valve according to a difference between the current coolant temperature T and the coolant set temperature Td, so as to control a flow rate of the coolant to make the current coolant temperature T approximately equal to the coolant set temperature Td. The second control module 3 is mainly configured to adjust a rotation speed of the coolant inlet pump according to a difference between the current main chip temperature Tx and the main chip set temperature Txd, so as to control a flow rate of the coolant to make the current main chip temperature Tx approach to be less than the main chip set temperature Txd. The third control module 4 is mainly configured to adjust the rotation speed of the fan according to a difference between the current auxiliary chip temperature Ty and an auxiliary chip set temperature Tyd, so as to control the flow of the cold air to make the current auxiliary chip temperature Ty approach to or lower than an auxiliary chip set temperature Tyd.
In addition, the present embodiment is further provided with a secondary detection module 5 and a fourth control module 6.
The secondary detection module 5 is mainly used for detecting the current coolant pressure P. The fourth control module 6 is mainly configured to adjust the rotation speed of the coolant inlet pump according to the difference between the current coolant pressure P and the coolant set pressure Pd, so as to control the flow rate of the coolant, so that the current coolant pressure P approaches to be smaller than the coolant set pressure Pd.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A coupling heat dissipation control method of a server air-liquid integrated heat dissipation system is characterized by comprising the following steps:
detecting the current cooling liquid temperature T, the current main chip temperature Tx and the current auxiliary chip temperature Ty;
adjusting the valve opening of a cooling liquid inlet valve according to the difference between the current cooling liquid temperature T and the set cooling liquid temperature Td so as to control the flow of the cooling liquid to make the current cooling liquid temperature T approximately equal to the set cooling liquid temperature Td;
adjusting the rotating speed of a cooling liquid inlet pump according to the difference value between the current main chip temperature Tx and the main chip set temperature Txd so as to control the flow of the cooling liquid to enable the current main chip temperature Tx to be smaller than the main chip set temperature Txd;
adjusting the rotating speed of the fan according to the difference value between the current auxiliary chip temperature Ty and the auxiliary chip set temperature Tyd so as to control the flow of cold air to enable the current auxiliary chip temperature Ty to approach to be less than the auxiliary chip set temperature Tyd;
the main chip set temperature Txd is the allowable chip temperature of the key heat dissipation component when the server is in a normal operation state;
the auxiliary chip set temperature Tyd is the allowable chip temperature of the secondary heat dissipation component when the server is in a normal operation state;
the method comprises the following steps of adjusting the rotating speed of a coolant inlet pump according to the difference between the current main chip temperature Tx and the main chip set temperature Txd, and specifically comprises the following steps:
if Tx-Txd is greater than K2, increasing the rotating speed of a liquid inlet pump of the cooling liquid;
if Tx-Txd < -K2, reducing the rotating speed of a cooling liquid inlet pump;
if Tx-Txd belongs to (-K2, K2), keeping the current rotating speed of the cooling liquid inlet pump;
wherein K2>0;
adjusting the rotating speed of the fan according to the difference between the current auxiliary chip temperature Ty and the auxiliary chip set temperature Tyd specifically comprises:
if Ty-Tyd is greater than K4, the rotating speed of the fan is increased;
if Ty-Tyd < -K4, reducing the rotating speed of the fan;
if the Ty-Tyd belongs to (-K4, K4), keeping the current rotating speed of the fan;
wherein K4>0.
2. The method for controlling the coupling heat dissipation of the wind-liquid integrated heat dissipation system of the server according to claim 1, wherein after the rotating speed of the cooling liquid inlet pump is adjusted, the method further comprises:
detecting the current cooling liquid pressure P;
and adjusting the rotating speed of the cooling liquid inlet pump according to the difference value between the current cooling liquid pressure P and the cooling liquid set pressure Pd so as to control the flow of the cooling liquid to enable the current cooling liquid pressure P to be smaller than the cooling liquid set pressure Pd.
3. The method for controlling coupling heat dissipation of a server air-liquid integrated heat dissipation system according to claim 1, wherein adjusting a valve opening of a coolant inlet valve according to a difference between a current coolant temperature T and a coolant set temperature Td comprises:
if T-Td is greater than K1, increasing the valve opening of a cooling liquid inlet valve;
if T-Td < -K1, reducing the valve opening of a cooling liquid inlet valve;
if the T-Td belongs to (-K1, K1), keeping the current valve opening of a cooling liquid inlet valve;
wherein K1>0.
4. The coupling heat dissipation control method of the server air-liquid integrated heat dissipation system according to claim 3, wherein the single adjustment amount is 1% -5% when the valve opening degree of the cooling liquid inlet valve is adjusted.
5. The coupling heat dissipation control method of the server air-liquid integrated heat dissipation system according to claim 1, wherein a single adjustment amount is 1% -5% when a rotation speed of a cooling liquid inlet pump is adjusted.
6. The method for controlling the coupling heat dissipation of the air-liquid comprehensive heat dissipation system of the server according to claim 2, wherein the adjusting of the rotation speed of the liquid inlet pump of the cooling liquid according to the difference between the current pressure P of the cooling liquid and the set pressure Pd of the cooling liquid specifically comprises:
if P-Pd is greater than K3, reducing the rotating speed of the cooling liquid inlet pump;
if P-Pd < -K3, increasing the rotating speed of the cooling liquid inlet pump;
if the P-Pd belongs to (-K3, K3), keeping the current rotating speed of the cooling liquid inlet pump;
wherein K3>0.
7. The utility model provides a cooling system's coupling heat dissipation control system is synthesized to server geomantic omen, its characterized in that includes:
the primary detection module is used for detecting and detecting the current cooling liquid temperature T, the current main chip temperature Tx and the current auxiliary chip temperature Ty;
the first control module is used for adjusting the valve opening of the cooling liquid inlet valve according to the difference value between the current cooling liquid temperature T and the set cooling liquid temperature Td so as to control the flow of the cooling liquid and enable the current cooling liquid temperature T to be approximately equal to the set cooling liquid temperature Td;
the second control module is used for adjusting the rotating speed of the cooling liquid inlet pump according to the difference value between the current main chip temperature Tx and the main chip set temperature Txd so as to control the flow of the cooling liquid and enable the current main chip temperature Tx to be smaller than the main chip set temperature Txd;
the third control module is used for adjusting the rotating speed of the fan according to the difference value between the current auxiliary chip temperature Ty and the auxiliary chip set temperature Tyd so as to control the flow of cold air to enable the current auxiliary chip temperature Ty to approach to be less than the auxiliary chip set temperature Tyd;
the main chip set temperature Txd is the allowable chip temperature of a key heat dissipation component when the server is in a normal operation state;
the auxiliary chip set temperature Tyd is the allowable chip temperature of the secondary heat dissipation component when the server is in a normal operation state;
the second control module is specifically configured to:
if Tx-Txd is greater than K2, increasing the rotating speed of a liquid inlet pump of the cooling liquid;
if Tx-Txd < -K2, reducing the rotating speed of a liquid inlet pump of the cooling liquid;
if Tx-Txd belongs to (-K2, K2), keeping the current rotating speed of the cooling liquid inlet pump;
wherein K2>0;
the third control module is specifically configured to:
if Ty-Tyd is greater than K4, the rotating speed of the fan is increased;
if Ty-Tyd < -K4, reducing the rotating speed of the fan;
if Ty-Tyd belongs to (-K4, K4), keeping the current rotating speed of the fan;
wherein K4>0.
8. The coupled heat dissipation control system of the server wind-liquid integrated heat dissipation system according to claim 7, further comprising:
the secondary detection module is used for detecting the current cooling liquid pressure P;
and the fourth control module is used for adjusting the rotating speed of the cooling liquid inlet pump according to the difference value between the current cooling liquid pressure P and the cooling liquid set pressure Pd so as to control the flow of the cooling liquid to enable the current cooling liquid pressure P to be smaller than the cooling liquid set pressure Pd.
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| CN102467197A (en) * | 2010-11-10 | 2012-05-23 | 英业达股份有限公司 | Server system |
| JP2015103712A (en) * | 2013-11-26 | 2015-06-04 | 富士通株式会社 | Facility, and cooling method for the same |
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