CN110881262A - Control method for cold source output capacity of liquid cooling system of data machine room - Google Patents
Control method for cold source output capacity of liquid cooling system of data machine room Download PDFInfo
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- CN110881262A CN110881262A CN201911005276.8A CN201911005276A CN110881262A CN 110881262 A CN110881262 A CN 110881262A CN 201911005276 A CN201911005276 A CN 201911005276A CN 110881262 A CN110881262 A CN 110881262A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20763—Liquid cooling without phase change
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20836—Thermal management, e.g. server temperature control
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Abstract
The invention discloses a method, a system and a device for controlling cold source output capacity of a liquid cooling system of a data machine room, wherein the method comprises the following steps: setting the temperature of the internal circulation liquid outlet of the cooling liquid, the rated power of the server and the power change threshold of the server, and enabling the machine room monitoring system to acquire the real-time power of the server in the operation process of the liquid cooling system every other time period and compare the real-time power with the real-time power of the server acquired in the previous time period; when the power change of the server is smaller than the power change threshold value of the server, the liquid cooling system controls the output capacity of the cooling source according to the temperature of the internal circulation liquid of the cooling liquid; when the power change of the server is larger than or equal to the power change threshold value of the server, the liquid cooling system controls the output capacity of the cooling source together according to the real-time power of the server and the temperature of the internal circulation liquid outlet of the cooling liquid; the method improves the responsiveness and the accuracy of the cold source liquid outlet regulation of the liquid cooling system and reduces the energy consumption of the system.
Description
Technical Field
The invention relates to the technical field of control of refrigeration equipment, in particular to a method for controlling cold source output capacity of a liquid cooling system of a data machine room.
Background
At present, the working principle of a liquid cooling heat dissipation system of a server is that an internal circulation pump generally drives cooling liquid of an internal circulation to a liquid cooling server, heat of the liquid cooling server is brought to a plate heat exchanger, then the external circulation pump drives the external circulation cooling liquid to take the heat in the plate heat exchanger away to a cooling tower, and finally the heat is dissipated to air through the cooling tower.
The existing liquid cooling temperature control unit only takes the temperature of the liquid outlet of the internal circulation as a controlled parameter, and the parameter is used for controlling a cooling source output capacity adjusting device, so that the temperature of the liquid outlet of the internal circulation is constant within a set point range, the heat dissipation requirement of a liquid cooling server is ensured, and finally the temperature of a CPU (central processing unit) of the liquid cooling server is operated within a reasonable temperature range. However, this method is a post-adjustment method, and the adjustment process is as follows: the load change of the liquid cooling server causes the self-generated heat change, thereby influencing the change of the liquid outlet temperature of the internal circulation to exceed the regulation precision range, and the liquid outlet temperature regulating device performs regulation action to recover the liquid outlet temperature to the precision range of the set value. It can be seen from the above adjusting process that after the load of the liquid cooling server changes, the cold source output capacity adjusting device does not adjust immediately, but adjusts the cold source output capacity adjusting device only after the temperature change of the liquid exceeds the precision range, which is not beneficial to quickly responding to the load change of the liquid cooling server; moreover, when the load becomes smaller, the output capacity of the liquid outlet temperature adjusting device is reduced after the liquid outlet temperature is reduced to exceed the precision range, which is not beneficial to the energy saving of the whole system.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a method for controlling the cold source output capacity of a liquid cooling system of a data machine room, and aims to solve the technical problems that the liquid cooling system of the data machine room in the prior art has not fast response to the change of the server load and is not beneficial to system energy conservation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a control method for cold source output capacity of a liquid cooling system of a data computer room comprises the following steps:
setting the temperature of the internal circulation liquid outlet of the cooling liquid, the rated power of the server and the power change threshold of the server, and enabling the machine room monitoring system to acquire the real-time power of the server in the operation process of the liquid cooling system every other time period and compare the real-time power with the real-time power of the server acquired in the previous time period;
when the power change of the server is smaller than the power change threshold value of the server, the liquid cooling system controls the output capacity of the cooling source according to the temperature of the internal circulation liquid of the cooling liquid;
and when the power change of the server is larger than or equal to the power change threshold value of the server, the liquid cooling system controls the output capacity of the cold source together according to the real-time power of the server and the temperature of the internal circulation effluent of the cooling liquid.
In the method for controlling the cold source output capacity of the liquid cooling system of the data computer room, when the power change of the server is smaller than the power change threshold of the server, the cold source output capacity Q is f (T), wherein T is the temperature of the internal circulation effluent.
In the method for controlling cold source output capacity of liquid cooling system of data room, when the power change of the server is greater than or equal to the power change threshold of the server, the cold source output capacity Q ═ f (t) + K × (P)n-Pn-1)/PeWherein T is the temperature of the inner circulation effluent, K is the weight coefficient of the server power change to influence the adjustment, and PnIs the real-time power of the server, Pn-1Is the real-time power of a time period on the server, PeIs the rated power of the server.
A liquid cooling system of a data machine room is controlled by adopting the method, and comprises a liquid cooling temperature control module, a machine room monitoring module and a plurality of liquid cooling servers which are arranged in parallel;
the liquid cooling distribution module comprises a plurality of liquid cooling servers which are arranged in parallel;
the liquid cooling temperature control module is used for calculating the difference value between the real-time running power information of the liquid cooling server acquired by the machine room monitoring module and the running power of the previous time period, and controlling the cold source capacity output to the liquid cooling server according to the difference value to meet the heat dissipation requirement of the liquid cooling server;
the machine room monitoring module is used for monitoring the real-time running power of the liquid cooling server and feeding back the real-time running power to the liquid cooling temperature control module.
In the liquid cooling system of the data machine room, the liquid cooling temperature control module comprises a liquid cooling temperature control unit and a cold source output capacity adjusting unit;
the liquid cooling temperature control unit is used for receiving the real-time running power information of the liquid cooling server acquired by the machine room control module, calculating the difference value between the real-time running power information and the running power of the previous time period, comparing the difference value with the power change threshold value of the server, calculating the output capacity of the cold source according to the difference value and the power change threshold value of the server, and sending the output capacity of the cold source to the cold source output capacity adjusting unit;
and the cold source output capacity adjusting unit is used for controlling the capacity of the cold source conveyed to the liquid cooling server.
A liquid cooling device of a data machine room is controlled by the method.
The data computer lab liquid cooling device in, including liquid cooling temperature control device, computer lab monitored control system and a plurality of liquid cooling server, computer lab monitored control system respectively with liquid cooling temperature control device and each liquid cooling server electric connection, set up between liquid cooling temperature control device's the confession liquid pipeline and return liquid pipeline through the pipeline is parallelly connected between each liquid cooling server.
In the liquid cooling device of the data machine room, the liquid cooling temperature control device comprises a cooling tower and a heat exchanger which are respectively connected through a liquid supply pipeline and a liquid return pipeline; the liquid supply pipeline is provided with an external circulation variable frequency pump, a temperature sensor, a first pressure sensor, a second pressure sensor and an internal circulation variable frequency pump; the liquid return outlet and the liquid supply inlet of the heat exchanger are also connected through a first connecting pipeline, and the first pressure sensor and the second pressure sensor are also connected through a second connecting pipeline; the liquid cooling temperature control device is electrically connected with the cooling tower, the outer circulation variable frequency pump, the temperature sensor, the first pressure sensor and the inner circulation variable frequency pump respectively.
Has the advantages that:
the invention provides a control method, a system and a device for a liquid cooling system of a data machine room, wherein the method introduces real-time power parameters of a liquid cooling server on the basis of adjusting the output capacity of a cold source, and utilizes the power variation of the liquid cooling server in a certain period in combination with the liquid outlet temperature of internal circulation to adjust the liquid outlet capacity of the cold source of the system in time, so that the responsiveness and the accuracy of the liquid outlet adjustment of the cold source of the liquid cooling system are improved, and the energy consumption of the system is reduced.
Drawings
Fig. 1 is a connection block diagram of the liquid cooling system of the data room provided by the invention.
Fig. 2 is a schematic connection diagram of the liquid cooling device of the data room.
Detailed Description
The invention provides a method, a system and a device for controlling a liquid cooling system of a data machine room, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail below by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The invention provides a method for controlling cold source output capacity of a liquid cooling system of a data machine room, which comprises the following steps:
setting the temperature of the internal circulation liquid outlet of the cooling liquid, the rated power of the server and the power change threshold of the server, and enabling the machine room monitoring system to acquire the real-time power of the server in the operation process of the liquid cooling system every other time period and compare the real-time power with the real-time power of the server acquired in the previous time period;
when the power change of the server is smaller than the power change threshold value of the server, the liquid cooling system controls the output capacity of the cooling source according to the temperature of the internal circulation liquid of the cooling liquid; and the output capacity Q (f) (T) of the cold source is the temperature of the liquid outlet of the internal circulation, the temperature is acquired by a temperature sensor and is used as a controlled parameter, the temperature of the liquid outlet of the internal circulation is kept in a set point range, the heat dissipation requirement of the server is ensured, and finally the temperature of a CPU (Central processing Unit) of the server is operated in a reasonable temperature range.
When the power change of the server is larger than or equal to the power change threshold value of the server, the liquid cooling system controls the output capacity of the cooling source together according to the real-time power of the server and the temperature of the internal circulation liquid outlet of the cooling liquid; output capacity of cold source Q ═ f (T) + K × (P)n-Pn-1)/PeWherein T is the temperature of the inner circulation effluent, K is the weight coefficient of the server power change to influence the adjustment, and PnIs the real-time power of the server, Pn-1Is the real-time power of a time period on the server, PeIs the rated power of the server.
Generally, the time period is in seconds, and the specific numerical value can be set according to actual needs; the weight coefficient K of the server power change influence regulation can be determined according to the actual system model operation debugging; the power change threshold of the server can be set according to actual needs.
In actual work, according to the actual power change of the server, the liquid cooling system is controlled and adjusted through the different functions, so that the control of the liquid cooling system is more accurate, and the energy consumption of the liquid cooling system is reduced.
Referring to fig. 1, a liquid cooling system of a data machine room, controlled by any one of the methods described above, includes a liquid cooling temperature control module 100, a machine room monitoring module 200, and a liquid cooling distribution module 300.
Specifically, the liquid cooling distribution module 300 includes a plurality of liquid cooling servers connected in parallel.
The liquid cooling temperature control module 100 is communicated with the machine room monitoring module 200 through the communication interface, obtains real-time running power information of the liquid cooling server acquired by the machine room monitoring module 200, calculates a difference value between the real-time running power of the liquid cooling server and the running power of the last time period, compares the difference value with a power change threshold value of the liquid cooling server, controls cold source capacity output to the liquid cooling server according to a comparison result, meets the heat dissipation requirement of the liquid cooling server, and achieves the purpose of accurate control.
The machine room monitoring module 200 is configured to monitor information such as real-time operating power of the liquid cooling server and temperature of the CPU, and transmit the information to the liquid cooling temperature control module 100.
More specifically, the liquid-cooled temperature control module 100 includes a liquid-cooled temperature control unit a and a cold source output capacity adjusting unit b.
The liquid cooling temperature control unit is used for receiving the real-time running power information of the liquid cooling server acquired by the machine room control module, calculating the difference value between the real-time running power information and the running power of the previous time period, comparing the difference value with the power change threshold value of the server, calculating the output capacity of the cold source according to the difference value and the power change threshold value of the server, and sending the output capacity of the cold source to the cold source output capacity adjusting unit;
and the cold source output capacity adjusting unit is used for controlling the capacity of the cold source conveyed to the liquid cooling server. In this embodiment, the cold source output capacity adjusting unit includes an external circulation variable frequency pump, a fan of the cooling tower, and a bypass valve.
A liquid cooling device of a data machine room is controlled by the method. The system comprises a liquid cooling temperature control device 1, a machine room monitoring system 2 and a plurality of liquid cooling servers 3, wherein the machine room monitoring system 2 is electrically connected with the liquid cooling temperature control device 1 and each liquid cooling server 3 respectively, and the liquid cooling stabilizing device acquires the temperature and power of each liquid cooling server CPU (central processing unit) acquired by the machine room monitoring system so as to adjust the output capacity of a cold source; the liquid cooling servers 3 are connected in parallel through pipelines and are arranged between a liquid supply pipeline 101 and a liquid return pipeline 102 of the liquid cooling temperature control device 1, a cooling liquid inlet of each liquid cooling server is connected with the liquid supply pipeline 101, and a cooling liquid outlet of each liquid cooling server is connected with the liquid return pipeline 102.
The liquid cooling temperature control device 1 comprises a cooling tower 103 and a heat exchanger 104 which are respectively connected through a liquid supply pipeline 101 and a liquid return pipeline 102, wherein in the embodiment, the heat exchanger is a plate heat exchanger; the device also comprises an external circulation variable frequency pump 105, a temperature sensor 106 and a first pressure sensor 107 which are arranged on the liquid supply pipeline 101, and a second pressure sensor 108 and an internal circulation variable frequency pump 109 which are arranged on the liquid return pipeline 102; the liquid return outlet and the liquid supply inlet of the heat exchanger 104 are further connected through a first connecting pipeline 110, the first pressure sensor 107 and the second pressure sensor 108 are further connected through a second connecting pipeline 111, and the first connecting pipeline and the second connecting pipeline are further provided with a bypass valve 112, in this embodiment, the bypass valves are all electronic valves;
further, the device also comprises a liquid cooling temperature control controller 113, wherein the liquid cooling temperature control controller 113 is respectively electrically connected with the cooling tower 103, the outer circulation variable frequency pump 105, the temperature sensor 106, the first pressure sensor 107, the inner circulation variable frequency pump 109 and each bypass valve 112, so that the functions of detecting the temperature and the pressure value of the inner circulation effluent and controlling the outer circulation variable frequency pump 105, the inner circulation variable frequency pump 109, the bypass valve 112 and the cooling tower 103 are realized.
In this embodiment, the inner loop inverter pump drives the coolant liquid of inner loop to each liquid cooling server in, takes away the heat of server to the plate heat exchanger in, then takes away the heat in the plate heat exchanger to the cooling tower through outer loop inverter pump drive outer loop coolant liquid, gives off the heat to the air in through the cooling tower. In the heat dissipation process, the machine room monitoring system monitors the real-time running power of each liquid cooling server and the temperature of the CPU in real time, and transmits the information to the liquid cooling temperature control controller, the liquid cooling temperature control controller calculates the proper output capacity of the cold source according to the acquired information, and adjusts the power of the outer circulation variable frequency pump and the cooling tower fan and the opening and closing state of the bypass valve, so that the temperature of each liquid cooling server CPU is controlled in a proper range, the heat dissipation requirement of the liquid cooling server CPU is met, and the energy consumption of the device is reduced.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (8)
1. A control method for cold source output capacity of a liquid cooling system of a data machine room is characterized by comprising the following steps:
setting the temperature of the internal circulation liquid outlet of the cooling liquid, the rated power of the server and the power change threshold of the server, and enabling the machine room monitoring system to acquire the real-time power of the server in the operation process of the liquid cooling system every other time period and compare the real-time power with the real-time power of the server acquired in the previous time period;
when the power change of the server is smaller than the power change threshold value of the server, the liquid cooling system controls the output capacity of the cooling source according to the temperature of the internal circulation liquid of the cooling liquid;
and when the power change of the server is larger than or equal to the power change threshold value of the server, the liquid cooling system controls the output capacity of the cold source together according to the real-time power of the server and the temperature of the internal circulation effluent of the cooling liquid.
2. The method for controlling cold source output capacity of a liquid cooling system of a data room according to claim 1, wherein when the power variation of the server is smaller than the power variation threshold of the server, the cold source output capacity Q ═ f (T), where T is the temperature of the internal recycle effluent.
3. The method as claimed in claim 1, wherein when the power variation of the server is greater than or equal to the power variation threshold of the server, the output capacity of the cooling source Q ═ f (t) + K (P) is greater than or equal ton-Pn-1)/PeWherein T is the temperature of the inner circulation effluent, K is the weight coefficient of the server power change to influence the adjustment, and PnIs the real-time power of the server, Pn-1Is the real-time power of a time period on the server, PeIs the rated power of the server.
4. A liquid cooling system of a data machine room is controlled by the method of any one of claims 1 to 3, and comprises a liquid cooling temperature control module, a machine room monitoring module and a plurality of liquid cooling servers which are arranged in parallel;
the liquid cooling distribution module comprises a plurality of liquid cooling servers which are arranged in parallel;
the liquid cooling temperature control module is used for calculating the difference value between the real-time running power information of the liquid cooling server acquired by the machine room monitoring module and the running power of the previous time period, and controlling the cold source capacity output to the liquid cooling server according to the difference value to meet the heat dissipation requirement of the liquid cooling server;
the machine room monitoring module is used for monitoring the real-time running power of the liquid cooling server and feeding back the real-time running power to the liquid cooling temperature control module.
5. The liquid cooling system of claim 4, wherein the liquid cooling and temperature control module comprises a liquid cooling and temperature control unit and a cold source output capacity adjusting unit;
the liquid cooling temperature control unit is used for receiving the real-time running power information of the liquid cooling server acquired by the machine room control module, calculating the difference value between the real-time running power information and the running power of the previous time period, comparing the difference value with the power change threshold value of the server, calculating the output capacity of the cold source according to the difference value and the power change threshold value of the server, and sending the output capacity of the cold source to the cold source output capacity adjusting unit;
and the cold source output capacity adjusting unit is used for controlling the capacity of the cold source conveyed to the liquid cooling server.
6. A liquid cooling device for a data room, characterized by being controlled by the method of any one of claims 1-3.
7. The liquid cooling device of claim 6, comprising a liquid cooling temperature control device, a machine room monitoring system and a plurality of liquid cooling servers, wherein the machine room monitoring system is electrically connected with the liquid cooling temperature control device and each liquid cooling server respectively, and the liquid cooling servers are arranged between a liquid supply pipeline and a liquid return pipeline of the liquid cooling temperature control device in parallel through pipelines.
8. The liquid cooling device of claim 7, wherein the liquid cooling and temperature control device comprises a cooling tower and a heat exchanger connected by a liquid supply pipe and a liquid return pipe, respectively; the liquid supply pipeline is provided with an external circulation variable frequency pump, a temperature sensor, a first pressure sensor, a second pressure sensor and an internal circulation variable frequency pump; the liquid return outlet and the liquid supply inlet of the heat exchanger are also connected through a first connecting pipeline, and the first pressure sensor and the second pressure sensor are also connected through a second connecting pipeline; the liquid cooling temperature control device is electrically connected with the cooling tower, the outer circulation variable frequency pump, the temperature sensor, the first pressure sensor and the inner circulation variable frequency pump respectively.
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CN116466775A (en) * | 2023-06-20 | 2023-07-21 | 湖南省通信建设有限公司 | Liquid cooling control system of chip-level element based on genetic algorithm |
CN116706650A (en) * | 2023-08-01 | 2023-09-05 | 武汉锐科光纤激光技术股份有限公司 | Laser temperature control method, device and system |
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