CN117529066B - Cooling unit control method and device, electronic equipment and computer readable medium - Google Patents
Cooling unit control method and device, electronic equipment and computer readable medium Download PDFInfo
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- CN117529066B CN117529066B CN202410009591.2A CN202410009591A CN117529066B CN 117529066 B CN117529066 B CN 117529066B CN 202410009591 A CN202410009591 A CN 202410009591A CN 117529066 B CN117529066 B CN 117529066B
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- 238000001816 cooling Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 202
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 168
- 230000007613 environmental effect Effects 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims description 17
- 238000004590 computer program Methods 0.000 claims description 11
- 230000006870 function Effects 0.000 claims description 11
- 230000001276 controlling effect Effects 0.000 description 28
- 230000017525 heat dissipation Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000000110 cooling liquid Substances 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000009699 differential effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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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
- H05K7/20781—Liquid cooling without phase change within cabinets for removing heat from server blades
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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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20254—Cold plates transferring heat from heat source to coolant
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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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20263—Heat dissipaters releasing heat from coolant
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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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The application discloses cooling unit control method, cooling unit includes plate heat exchanger, water pump and liquid pump at least, and the method includes: detecting environmental temperature information of a cooling unit, temperature information of a water side inlet of the plate heat exchanger and temperature information of a water side outlet of the plate heat exchanger based on a first preset period; controlling the frequency of the water pump during operation according to the environmental temperature information, the temperature information of the water side inlet, the temperature information of the water side outlet and a preset first frequency control rule; detecting first temperature information of a liquid side inlet of the plate heat exchanger and temperature information of a liquid side outlet of the plate heat exchanger based on a second preset period; and controlling the frequency of the liquid pump during operation according to the first temperature information, the temperature information of the liquid side outlet and a preset second frequency control rule. The application also discloses a cooling unit control device, electronic equipment and a computer readable medium. Accurate energy-saving control according to the needs is realized; and the instantaneity of energy-saving control is improved.
Description
Technical Field
The present application relates to the field of energy saving technology, and in particular, to a cooling unit control method, a cooling unit control device, an electronic device, and a computer readable medium.
Background
With the advancement of technology and the popularization of 5G (5G th Generation Mobile Communication Technology, fifth generation mobile communication technology) networks, performance requirements for electronic information devices are increasing. As the heat generation amount and heat flux density of electronic components have increased greatly, the power consumption generated for cooling the electronic components has also to be increased exponentially.
At most 10 BBU equipment can be configured in a single air-cooled BBU (Building Base band Unite, baseband processing unit) cabinet, the total power consumption of the single cabinet exceeds 10kw, the electric energy consumed by the BBU equipment is almost completely converted into heat energy, and after the BBU equipment is concentrated, the heat is also completely concentrated in the BBU cabinet. The traditional air cooling can not meet the heat dissipation requirement, so the heat dissipation is realized by adopting a liquid cooling unit at present, but the energy saving effect of the control method of the existing liquid cooling unit is not ideal.
Disclosure of Invention
The present application aims to solve one of the technical problems in the related art to some extent. To this end, the present application provides a cooling unit control method, a cooling unit control device, an electronic apparatus, and a computer-readable medium.
As a first aspect of the present application, there is provided a cooling unit control method including at least a plate heat exchanger, a water pump, and a liquid pump, wherein the method includes:
detecting environmental temperature information of the cooling unit, temperature information of a water side inlet of the plate heat exchanger and temperature information of a water side outlet of the plate heat exchanger based on a first preset period;
controlling the frequency of the water pump during operation according to the environmental temperature information, the temperature information of the water side inlet, the temperature information of the water side outlet and a preset first frequency control rule; and
detecting first temperature information of a liquid side inlet of the plate heat exchanger and temperature information of a liquid side outlet of the plate heat exchanger based on a second preset period;
and controlling the frequency of the liquid pump during operation according to the first temperature information of the liquid side inlet, the temperature information of the liquid side outlet and a preset second frequency control rule.
Optionally, the method further comprises:
detecting second temperature information of a liquid side inlet of the plate heat exchanger based on a third preset period;
controlling the frequency of the water pump and the liquid pump when the water pump starts to operate in a current third preset period according to the second temperature information of the liquid side inlet and a preset third frequency control rule; wherein the first preset period and the second preset period are both smaller than the third preset period.
Optionally, the preset third frequency control rule includes a one-to-one correspondence between a plurality of temperature information intervals and a plurality of preset frequencies; the controlling the frequency of the water pump and the liquid pump when starting to operate in the current third preset period according to the second temperature information of the liquid side inlet and the preset third frequency control rule comprises the following steps:
determining a matched temperature information interval, wherein the matched temperature information interval is a temperature information interval matched with the second temperature information in the plurality of temperature information intervals;
determining the preset frequency corresponding to the matched temperature information interval in the one-to-one correspondence;
and controlling the water pump and the liquid pump to start to operate according to the determined preset frequency in the current third preset period.
Optionally, the controlling the frequency of the water pump during operation according to the environmental temperature information, the temperature information of the water side inlet, the temperature information of the water side outlet and a preset first frequency control rule includes:
determining water side temperature difference information between the temperature information of the water side inlet and the temperature information of the water side outlet;
Determining a first target frequency according to the environmental temperature information, the water side temperature difference information, the first frequency control rule and the current running frequency of the water pump;
and controlling the water pump to operate according to the first target frequency.
Optionally, the first frequency control rule is expressed by the following formula:
f1=Round((∆T1-C)*Th/M)+Tset1（1）；
in the formula (1), f1 represents a first target frequency, round represents a rounding function, fatter 1 represents water-side temperature difference information, th represents environment temperature information, tset1 represents the current running frequency of the water pump, the value range of C is [3 ℃,7 ℃), and the value range of M is [25 ℃,45 ℃).
Optionally, the controlling the frequency of the liquid pump during operation according to the first temperature information of the liquid side inlet, the temperature information of the liquid side outlet and a preset second frequency control rule includes:
determining liquid side temperature difference information between the first temperature information of the liquid side inlet and the temperature information of the liquid side outlet;
determining a second target frequency according to the first temperature information of the liquid side inlet, the liquid side temperature difference information, the second frequency control rule and the current operating frequency of the liquid pump;
And controlling the liquid pump to operate according to the second target frequency.
Optionally, the second frequency control rule is expressed by the following formula:
f2=Round((∆T2-D)*T0/N)+Tset2（2）；
in the formula (2), f2 represents a second target frequency, round represents a rounding function, T2 represents liquid-side temperature difference information, T0 represents first temperature information of a liquid-side inlet, tset2 represents the current operating frequency of the liquid pump, the value range of D is [3 ℃,7 ℃, and the value range of N is [30 ℃,50 ].
As a second aspect of the present application, there is provided a cooling unit control device, the cooling unit comprising at least a plate heat exchanger, a water pump and a liquid pump, wherein the device comprises a first detection module, a first control module, a second detection module and a second control module:
the first detection module is used for detecting the environmental temperature information of the cooling unit, the temperature information of the water side inlet of the plate heat exchanger and the temperature information of the water side outlet of the plate heat exchanger based on a first preset period;
the first control module is used for controlling the frequency of the water pump during operation according to the environmental temperature information, the temperature information of the water side inlet, the temperature information of the water side outlet and a preset first frequency control rule;
The second detection module is used for detecting first temperature information of a liquid side inlet of the plate heat exchanger and temperature information of a liquid side outlet of the plate heat exchanger based on a second preset period;
the second control module is used for controlling the frequency of the liquid pump during operation according to the first temperature information of the liquid side inlet, the temperature information of the liquid side outlet and a preset second frequency control rule.
As a third aspect of the present application, there is provided an electronic apparatus, wherein the electronic apparatus includes:
one or more processors;
and a memory having one or more computer programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement a cooling unit control method according to the first aspect of the present application.
As a fourth aspect of the present application, there is provided a computer readable medium having stored thereon a computer program, wherein the computer program, when executed by a processor, implements the cooling unit control method according to the first aspect of the present application.
According to the cooling unit control method provided by the embodiment of the application, the external heat dissipation condition can be accurately identified based on the environmental temperature information, the operation state of the water side of the plate heat exchanger can be accurately identified based on the temperature information of the water side inlet and the temperature information of the water side outlet, the operation state of the liquid side of the plate heat exchanger can be accurately identified based on the first temperature information of the liquid side inlet and the temperature information of the liquid side outlet, the operation frequency of the water pump and the operation frequency of the liquid pump can be respectively and periodically controlled according to the temperature information, and the on-demand and accurate energy-saving control is realized; and by periodically circularly detecting and adjusting the control, the real-time performance of the energy-saving control is improved.
Drawings
The application is further described below with reference to the accompanying drawings:
FIG. 1 is a flow chart of one embodiment of a cooling unit control method provided herein;
FIG. 2 is a flow chart of yet another embodiment of a cooling unit control method provided herein;
FIG. 3 is a flow chart of another embodiment of a cooling unit control method provided herein;
FIG. 4 is a flow chart of yet another embodiment of a cooling unit control method provided herein;
FIG. 5 is a flow chart of yet another embodiment of a cooling unit control method provided herein;
FIG. 6 is a block diagram of one embodiment of an electronic device provided herein;
fig. 7 is a block diagram of a computer readable medium provided herein.
Description of the reference numerals
101: processor 102: memory device
103: I/O interface 104: bus line
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The examples in the embodiments are intended to be used for explaining the present application and are not to be construed as limiting the present application.
Reference in the specification to "one embodiment" or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment itself may be included in at least one embodiment disclosed herein. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.
At present, a BBU cabinet generally adopts a liquid cooling unit to realize heat dissipation, but loads caused by changes of ambient temperature and power of IT (Information Technology, information and communication technology) equipment are different, so that energy consumption is different, and the energy-saving effect of a related cooling unit control method is not ideal. Therefore, in order to ensure the energy-saving effect, the liquid cooling control is required to be performed on the liquid cooling cabinet.
In view of this, the inventor of the present application proposes that, in consideration of convenience and the like, the related art control method of the cooling unit is often controlled by only comparing a single parameter with a preset threshold value, so that the frequency fluctuation of the cooling unit in the control process is large, and the energy-saving effect is not ideal. In order to solve the problem, parameters such as the ambient temperature, the water side inlet and outlet temperature and the liquid side inlet and outlet temperature of the plate heat exchanger can be comprehensively utilized for control, and the external heat dissipation condition and the IT equipment load condition are considered, so that accurate energy-saving control according to needs is realized.
Accordingly, as a first aspect of the embodiments of the present application, there is provided a control method of a cooling unit, the cooling unit at least including a plate heat exchanger, a water pump and a liquid pump, wherein, as shown in fig. 1, the method may include the steps of:
in step S110, based on a first preset period, detecting environmental temperature information of the cooling unit, temperature information of a water side inlet of the plate heat exchanger, and temperature information of a water side outlet of the plate heat exchanger;
in step S120, controlling the frequency of the water pump during operation according to the environmental temperature information, the temperature information of the water inlet, the temperature information of the water outlet, and a preset first frequency control rule; and
in step S130, based on a second preset period, detecting first temperature information of a liquid side inlet of the plate heat exchanger and temperature information of a liquid side outlet of the plate heat exchanger;
in step S140, the frequency during the operation of the liquid pump is controlled according to the first temperature information of the liquid side inlet, the temperature information of the liquid side outlet, and a preset second frequency control rule.
The cooling unit is arranged outside the liquid cooling cabinet, cooling water is adopted to exchange heat with liquid cooling liquid through the plate heat exchanger, cooling of the liquid cooling liquid is achieved, the inlet and the outlet of the liquid cooling liquid at the plate heat exchanger are called as liquid side inlet and liquid side outlet, and the inlet and the outlet of the cooling water at the plate heat exchanger are called as water side inlet and water side outlet.
The first preset period and the second preset period are not limited in particular, and may be set according to practical situations, for example, the first preset period and the second preset period may be 3 minutes, 4 minutes, 5 minutes, and so on, respectively.
It will be appreciated that there is no fixed order of execution between the steps S110-S120 and the steps S130-140. During normal operation of the liquid cooling cabinet and the cooling unit, once a first preset period is started, the control of the frequency of the water pump is performed in response to reaching the first preset period; once the first second preset period is started, controlling the frequency of the liquid pump in response to reaching the second preset period; the two control processes are not interfered with each other.
In the liquid cooling scene, the environment temperature, the water side inlet and outlet temperature, the liquid side outlet temperature and the like can reflect a certain information amount, the environment temperature information of the cooling unit can effectively reflect the external heat dissipation condition, the temperature information of the water side inlet and the temperature information of the water side outlet can effectively reflect the running state of the water side of the plate heat exchanger, and the first temperature information of the liquid side inlet and the temperature information of the liquid side outlet can effectively reflect the running state of the liquid side of the plate heat exchanger.
In the cooling unit control method provided by the embodiment of the application, based on a first preset period, detecting the environmental temperature information of the cooling unit, the temperature information of the water side inlet of the plate heat exchanger and the temperature information of the water side outlet of the plate heat exchanger; controlling the frequency of the water pump during operation according to the environmental temperature information, the temperature information of the water side inlet, the temperature information of the water side outlet and a preset first frequency control rule; detecting first temperature information of a liquid side inlet of the plate heat exchanger and temperature information of a liquid side outlet of the plate heat exchanger based on a second preset period; and controlling the frequency of the liquid pump during operation according to the first temperature information of the liquid side inlet, the temperature information of the liquid side outlet and a preset second frequency control rule. The external heat dissipation condition can be accurately identified based on the environmental temperature information, the running state of the water side of the plate heat exchanger can be accurately identified based on the temperature information of the water side inlet and the temperature information of the water side outlet, the running state of the liquid side of the plate heat exchanger can be accurately identified based on the first temperature information of the liquid side inlet and the temperature information of the liquid side outlet, the running frequency of the water pump and the running frequency of the liquid pump are respectively and periodically controlled according to the temperature information, and the energy-saving control which is accurate and required is realized; and by periodically circularly detecting and adjusting the control, the real-time performance of the energy-saving control is improved.
The inventor of the application proposes that the temperature information of the liquid cooling liquid at the inlet of the plate heat exchanger can be detected based on a longer third preset period so as to control the frequency of the water pump and the liquid pump when starting to operate in the current third preset period, and then the current operating frequency of the water pump is respectively controlled based on the shorter first preset period and the shorter second preset period so as to control the current operating frequency of the liquid pump, thereby achieving the effect of PID regulation (a linear regulation law with proportional, integral and differential actions), realizing quick frequency rising and slow frequency falling, and effectively improving the stability of energy-saving control.
Accordingly, in some embodiments, as shown in fig. 2, the method may further include the steps of:
in step S210, detecting second temperature information of a liquid side inlet of the plate heat exchanger based on a third preset period;
in step S220, according to the second temperature information of the liquid side inlet and a preset third frequency control rule, controlling the frequency of the water pump and the liquid pump when starting to operate in a current third preset period; wherein the first preset period and the second preset period are both smaller than the third preset period.
The third preset period is not specifically limited, and may be determined according to practical situations, and in general, the third preset period may be set to be greater than the first preset period and the second preset period, so as to implement fast frequency up and slow frequency down, for example, the first preset period, the second preset period, and the third preset period may be set to be 3 minutes, 4 minutes, and 5 minutes, respectively.
In response to reaching the third preset period, the second temperature information of the liquid side inlet of the plate heat exchanger is detected to control the frequency of the water pump and the liquid pump when the water pump starts to operate in the current third preset period together with the preset third frequency control rule, and it should be noted that, since the first preset period and the second preset period are smaller than the third preset period, the next first preset period or the next second preset period will arrive earlier than the next third preset period, that is, the step S220 will only control the operation frequency of the water pump/liquid pump during the period from the start of the current third preset period to the start of the next first preset period or the next second preset period, and then, in response to reaching the next first preset period or the next second preset period, the operation frequency of the water pump/liquid pump will be controlled again, respectively.
It should be noted that, in the embodiment of the present application, after the liquid cooling cabinet is started up and operated, the water pump and the liquid pump are operated according to the full load, and at this time, the second temperature information of the liquid side inlet of the plate heat exchanger is detected to control the frequency of the liquid pump and the frequency of the operation of the water pump; after the liquid cooling cabinet and the cooling unit are operated for a period of time (for example, 3 to 5 minutes), starting a first preset period, and executing the steps S110 to S120; after the liquid cooling cabinet and the cooling unit are operated for a period of time (for example, 3 to 5 minutes), starting a first second preset period, and executing the steps S130 to S140; then, the first third preset period is started, and the above steps S210 to S220 are performed.
In the cooling unit control method, based on a longer third preset period, second temperature information of a liquid side inlet of the plate heat exchanger is detected to control the frequency of a water pump and a liquid pump when the water pump starts to operate in the current third preset period together with a preset third frequency control rule, and then based on a shorter first preset period, environmental temperature information of the cooling unit, temperature information of a water side inlet of the plate heat exchanger and temperature information of a water side outlet of the plate heat exchanger are detected to control the operating frequency of the water pump together with a preset first frequency control rule; and detecting the first temperature information of the liquid side inlet of the plate heat exchanger and the temperature information of the liquid side outlet of the plate heat exchanger based on a shorter second preset period, so as to control the operating frequency of the liquid pump together with a preset second frequency control rule, achieve the effect of PID regulation, realize quick frequency rising and slow frequency falling, and effectively improve the stability of energy-saving control.
In some embodiments, the preset third frequency control rule includes a one-to-one correspondence between a plurality of temperature information intervals and a plurality of preset frequencies; as shown in fig. 3, according to the second temperature information of the liquid side inlet and the preset third frequency control rule, the controlling the frequency of the water pump and the liquid pump when starting to operate in the current third preset period (i.e. the step S220) may include the following steps:
in step S310, a matching temperature information section is determined, where the matching temperature information section is a temperature information section matched with the second temperature information in the plurality of temperature information sections;
in step S320, determining a preset frequency corresponding to the matching temperature information interval in the one-to-one correspondence;
in step S330, the water pump and the liquid pump are controlled to start operating at the determined preset frequency in the current third preset period.
In this embodiment, the plurality of temperature information intervals and the plurality of preset frequencies are not limited in particular, and may be set according to actual situations.
In the embodiment of the application, by dividing a plurality of different temperature information intervals, setting corresponding frequencies for the temperature information intervals respectively, periodically detecting the second temperature information of the liquid side inlet of the plate heat exchanger, and determining which frequency to control the water pump and the liquid pump to operate at when the current third period starts by inquiring the one-to-one correspondence relationship.
For example, the temperature information intervals may be (- ++b ], (B, a) and [ a, ++infinity), where a > B, a may be [38 ℃,45 ℃, B may be [25 ℃,40 ℃, the preset frequency corresponding to "- ++b ] may be 40HZ, the preset frequency corresponding to (B, a) may be 45HZ, and the preset frequency corresponding to [ a, ++infinity) may be 50HZ.
According to the temperature information of the water side inlet and the temperature information of the water side outlet, the temperature difference between the water side inlet and the water side outlet can be determined, so that the running state of the water side of the plate heat exchanger is reflected. Accordingly, in some embodiments, as shown in fig. 4, the controlling the frequency of the water pump during operation according to the environmental temperature information, the temperature information of the water inlet, the temperature information of the water outlet, and the preset first frequency control rule (i.e. step S120) may include the following steps:
in step S410, determining water side temperature difference information between the temperature information of the water side inlet and the temperature information of the water side outlet;
in step S420, a first target frequency is determined according to the environmental temperature information, the water side temperature difference information, the first frequency control rule, and the current operating frequency of the water pump;
In step S430, the water pump is controlled to operate at the first target frequency.
In this application embodiment, can accurately discern the outside heat dissipation condition based on ambient temperature information, can accurately discern the running state of plate heat exchanger's water side based on water side difference in temperature information, according to ambient temperature information and water side difference in temperature information, adjust according to preset first frequency control rule on the basis of the present running frequency of water pump, control water pump is according to the operation of first target frequency after adjusting.
In some embodiments, the first frequency control rule may be expressed by the following formula:
f1=Round((∆T1-C)*Th/M)+Tset1（1）；
in the formula (1), f1 represents a first target frequency, round represents a rounding function, fatter 1 represents water-side temperature difference information, th represents environment temperature information, tset1 represents the current running frequency of the water pump, the value range of C is [3 ℃,7 ℃), and the value range of M is [25 ℃,45 ℃).
Wherein, C can take on any value in the interval [3 ℃,7 ℃ and M can take on any value in the interval [25 ℃,45 ℃ and the embodiment of the application is not limited in particular, for example, C can take on 4 ℃ and M can take on 35 ℃.
According to the first temperature information of the liquid side inlet and the temperature information of the liquid side outlet, the temperature difference between the liquid side inlet and the liquid side outlet can be determined, so that the running state of the liquid side of the plate heat exchanger is reflected. Accordingly, in some embodiments, as shown in fig. 5, the controlling the frequency of the liquid pump during operation according to the first temperature information of the liquid side inlet, the temperature information of the liquid side outlet, and the preset second frequency control rule (i.e. step S140) may include the following steps:
In step S510, determining liquid-side temperature difference information between the first temperature information of the liquid-side inlet and the temperature information of the liquid-side outlet;
in step S520, a second target frequency is determined according to the first temperature information of the liquid side inlet, the liquid side temperature difference information, the second frequency control rule, and the current operating frequency of the liquid pump;
in step S530, the liquid pump is controlled to operate at the second target frequency.
In the embodiment of the application, the running state of the liquid side of the plate heat exchanger can be accurately identified based on the liquid side temperature difference information, the liquid pump is regulated on the basis of the current running frequency of the liquid pump according to the preset second frequency control rule according to the liquid side temperature difference information, and the liquid pump is controlled to run according to the regulated second target frequency.
In some embodiments, the second frequency control rule may be expressed by the following formula:
f2=Round((∆T2-D)*T0/N)+Tset2（2）；
in the formula (2), f2 represents a second target frequency, round represents a rounding function, T2 represents liquid-side temperature difference information, T0 represents first temperature information of a liquid-side inlet, tset2 represents the current operating frequency of the liquid pump, the value range of D is [3 ℃,7 ℃, and the value range of N is [30 ℃,50 ].
Wherein D may take any value within the interval [3 ℃,7 ℃) and N may take any value within the interval 30 ℃,50 ℃), which is not particularly limited in the embodiment of the present application, for example, C may take a value of 5 ℃, and M may take a value of 42 ℃.
The following describes the cooling unit control method provided in the present application in detail with reference to a most specific embodiment, and the flow of the cooling unit control method may specifically include the following steps:
1. the liquid cooling cabinet is started to operate;
2. the liquid pump and the water pump of the cooling unit run according to the full load of 50 HZ;
3. detecting that second temperature information T1 of a liquid side inlet of the plate heat exchanger is 45 ℃;
4. in the third frequency control rule, three temperature information sections (- ++b ], (B, 44 ℃) and [44 ℃, ++infinity) correspond to 40HZ, 45HZ and 50HZ, respectively, in order. The matching temperature information interval of the second temperature information T1 of the liquid side inlet of the plate heat exchanger is [44 ℃, + -infinity), and then the water pump and the liquid pump are controlled to start to operate according to 50 HZ;
5. after 5 minutes of operation, starting a first preset period, wherein the first preset period is 3 minutes, and detecting that the ambient temperature information Th of the cooling unit is 32 ℃ and the temperature information of the water side inlet of the plate heat exchanger and the temperature information of the water side outlet of the plate heat exchanger;
6. Determining that the water side temperature difference information T1 between the water side inlet and the water side outlet is 3 ℃;
7. calculating according to a formula f1=round ((+t1-C) ×th/M) +tset1, wherein the value of C is 4 ℃, the value of M is 35 ℃, tset1 is 50HZ currently, f1=roud (3-4) ×32/35+50= -1+50=49 HZ is executed, and the water pump is controlled to operate according to 49 HZ;
then, continuously detecting environmental temperature information of a cooling unit, temperature information of a water side inlet of the plate heat exchanger and temperature information of a water side outlet of the plate heat exchanger based on a first preset period to control the frequency of the water pump during operation;
8. after 5 minutes of operation, starting a first second preset period, wherein the second preset period is 4 minutes, and detecting that the first temperature information T0 of the liquid side inlet of the plate heat exchanger is 45 ℃ and the temperature information of the liquid side outlet of the plate heat exchanger;
9. determining that the temperature difference information T2 of the liquid side between the liquid side inlet and the liquid side outlet is 4 ℃;
10. calculating according to a formula f2=round ((fat2-D) ×t0/N) +tset2, wherein D takes a value of 5 ℃, N takes a value of 42 ℃, tset2 is 50HZ currently, executing Round (4-5) ×45/42+50= -1+50=49 HZ, and controlling the liquid pump to operate according to 49 HZ;
then, continuously detecting first temperature information of a liquid side inlet of the plate heat exchanger and temperature information of a liquid side outlet of the plate heat exchanger based on a second preset period to control the frequency of the liquid pump during operation;
11. And starting a first preset third period, and detecting second temperature information T1 of a liquid side inlet of the plate heat exchanger.
The following describes the cooling unit control method provided in the present application in detail with reference to another most specific embodiment, and the flow of the cooling unit control method specifically may include the following steps:
a. the liquid cooling cabinet is started to operate;
b. the liquid pump and the water pump of the cooling unit run according to the full load of 50 HZ;
c. detecting that second temperature information T1 of a liquid side inlet of the plate heat exchanger is 40 ℃;
d. in the third frequency control rule, three temperature information intervals (- ≡b ], (B, A) and [ A ], in succession of +infinity) corresponds to 40HZ 45HZ and 50HZ. Determining that the matching temperature information interval of the second temperature information T1 of the liquid side inlet of the plate heat exchanger is (B, A), and controlling the water pump and the liquid pump to start to operate according to 45 HZ;
e. after 5 minutes of operation, starting a first preset period, wherein the first preset period is 3 minutes, and detecting that the environmental temperature information Th of the cooling unit is 35 ℃, the temperature information of the water side inlet of the plate heat exchanger and the temperature information of the water side outlet of the plate heat exchanger;
f. determining that the temperature difference information T1 of the water side between the water side inlet and the water side outlet is 5 ℃;
g. Calculating according to a formula f1=round ((+t1-C) ×th/M) +tset1, wherein the value of C is 4 ℃, the value of M is 35 ℃, tset1 is 45HZ currently, f1=roud (5-4) ×35/35+45=1+45=46 HZ is executed, and the water pump is controlled to operate according to 46 HZ;
then, continuously detecting environmental temperature information of a cooling unit, temperature information of a water side inlet of the plate heat exchanger and temperature information of a water side outlet of the plate heat exchanger based on a first preset period to control the frequency of the water pump during operation;
h. after 5 minutes of operation, starting a first second preset period, wherein the second preset period is 4 minutes, and detecting the first temperature information T0 of the liquid side inlet of the plate heat exchanger to be 40 ℃ and the temperature information of the liquid side outlet of the plate heat exchanger;
i. determining that the temperature difference information T2 of the liquid side between the liquid side inlet and the liquid side outlet is 5 ℃;
j. calculating according to the formula f2=round ((fat2-D) ×t0/N) +tset2, wherein D takes the value of 5 ℃, N takes the value of 42 ℃, tset2 is 45HZ currently, executing Round (5-5) ×40/42+45=0+45=45 HZ, and controlling the liquid pump to still operate according to 45 HZ;
then, continuously detecting first temperature information of a liquid side inlet of the plate heat exchanger and temperature information of a liquid side outlet of the plate heat exchanger based on a second preset period to control the frequency of the liquid pump during operation;
k. And starting a first preset third period, and detecting second temperature information T1 of a liquid side inlet of the plate heat exchanger.
As a second aspect of the embodiments of the present application, a cooling unit control device is provided, where the cooling unit at least includes a plate heat exchanger, a water pump, and a liquid pump, and the device includes a first detection module, a first control module, a second detection module, and a second control module:
the first detection module is used for detecting the environmental temperature information of the cooling unit, the temperature information of the water side inlet of the plate heat exchanger and the temperature information of the water side outlet of the plate heat exchanger based on a first preset period;
the first control module is used for controlling the frequency of the water pump during operation according to the environmental temperature information, the temperature information of the water side inlet, the temperature information of the water side outlet and a preset first frequency control rule detected by the first detection module;
the second detection module is used for detecting first temperature information of a liquid side inlet of the plate heat exchanger and temperature information of a liquid side outlet of the plate heat exchanger based on a second preset period;
The second control module is used for controlling the frequency of the liquid pump during operation according to the first temperature information of the liquid side inlet, the temperature information of the liquid side outlet and a preset second frequency control rule detected by the second detection module.
In some embodiments, the cooling unit control apparatus may further include a third detection module and a third control module;
the third detection module is used for detecting second temperature information of the liquid side inlet of the plate heat exchanger based on a third preset period;
the third control module is used for controlling the frequency of the water pump and the liquid pump when the operation starts in a current third preset period according to the second temperature information of the liquid side inlet detected by the third detection module and a preset third frequency control rule; wherein the first preset period and the second preset period are both smaller than the third preset period.
In some embodiments, the preset third frequency control rule includes a one-to-one correspondence between a plurality of temperature information intervals and a plurality of preset frequencies; the third control module is used for:
determining a matched temperature information interval, wherein the matched temperature information interval is a temperature information interval matched with the second temperature information in the plurality of temperature information intervals;
Determining the preset frequency corresponding to the matched temperature information interval in the one-to-one correspondence;
and controlling the water pump and the liquid pump to start to operate according to the determined preset frequency in the current third preset period.
In some embodiments, the first control module is to:
determining water side temperature difference information between the temperature information of the water side inlet and the temperature information of the water side outlet;
determining a first target frequency according to the environmental temperature information, the water side temperature difference information, the first frequency control rule and the current running frequency of the water pump;
and controlling the water pump to operate according to the first target frequency.
In some embodiments, the first frequency control rule may be expressed by the following formula:
f1=Round((∆T1-C)*Th/M)+Tset1（1）；
in the formula (1), f1 represents a first target frequency, round represents a rounding function, fatter 1 represents water-side temperature difference information, th represents environment temperature information, tset1 represents the current running frequency of the water pump, the value range of C is [3 ℃,7 ℃), and the value range of M is [25 ℃,45 ℃).
In some embodiments, the second control module is to:
determining liquid side temperature difference information between the first temperature information of the liquid side inlet and the temperature information of the liquid side outlet;
Determining a second target frequency according to the first temperature information of the liquid side inlet, the liquid side temperature difference information, the second frequency control rule and the current operating frequency of the liquid pump;
and controlling the liquid pump to operate according to the second target frequency.
In some embodiments, the second frequency control rule may be expressed by the following formula:
f2=Round((∆T2-D)*T0/N)+Tset2（2）；
in the formula (2), f2 represents a second target frequency, round represents a rounding function, T2 represents liquid-side temperature difference information, T0 represents first temperature information of a liquid-side inlet, tset2 represents the current operating frequency of the liquid pump, the value range of D is [3 ℃,7 ℃, and the value range of N is [30 ℃,50 ].
As a third aspect of the embodiments of the present application, there is provided an electronic device, where, as shown in fig. 6, the electronic device includes:
one or more processors 101;
a memory 102, on which one or more computer programs are stored, which when executed by the one or more processors 101, cause the one or more processors 101 to implement the cooling unit control method provided by the first aspect of the embodiments of the present application.
The electronic device may also include one or more I/O interfaces 103 coupled between the processor 101 and the memory 102 configured to enable information interaction of the processor 101 with the memory 102.
Wherein the processor 101 is a device having data processing capabilities, including but not limited to a Central Processing Unit (CPU) or the like; memory 102 is a device with data storage capability including, but not limited to, random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically charged erasable programmable read-only memory (EEPROM), FLASH memory (FLASH); an I/O interface (read/write interface) is connected between the processor and the memory, and can implement information interaction between the processor and the memory, which includes, but is not limited to, a data Bus (Bus), and the like.
In some embodiments, processor 101, memory 102, and I/O interface 103 are connected to each other via bus 104, and thus to other components of the computing device.
As a fourth aspect of the embodiments of the present application, as shown in fig. 7, there is provided a computer readable medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the cooling unit control method provided in the first aspect of the embodiments of the present application.
Those skilled in the art will appreciate that implementing all or part of the processes in the methods of the embodiments described above may be accomplished by computer programs to instruct related hardware. Accordingly, the computer program may be stored in a non-volatile computer readable storage medium, which when executed, performs the method of any of the above embodiments. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The foregoing is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and it should be apparent to those skilled in the art that the present application includes but is not limited to the accompanying drawings and what is described in the above specific embodiments. Any modifications which do not depart from the functional and structural principles of the present application are intended to be included within the scope of the claims.
Claims (6)
1. A method of controlling a cooling unit comprising at least a plate heat exchanger, a water pump and a liquid pump, the method comprising:
detecting environmental temperature information of the cooling unit, temperature information of a water side inlet of the plate heat exchanger and temperature information of a water side outlet of the plate heat exchanger based on a first preset period;
controlling the frequency of the water pump during operation according to the environmental temperature information, the temperature information of the water side inlet, the temperature information of the water side outlet and a preset first frequency control rule; and
detecting first temperature information of a liquid side inlet of the plate heat exchanger and temperature information of a liquid side outlet of the plate heat exchanger based on a second preset period;
controlling the frequency of the liquid pump during operation according to the first temperature information of the liquid side inlet, the temperature information of the liquid side outlet and a preset second frequency control rule;
The controlling the frequency of the water pump during operation according to the environmental temperature information, the temperature information of the water side inlet, the temperature information of the water side outlet and a preset first frequency control rule comprises the following steps:
determining water side temperature difference information between the temperature information of the water side inlet and the temperature information of the water side outlet;
determining a first target frequency according to the environmental temperature information, the water side temperature difference information, the first frequency control rule and the current running frequency of the water pump;
controlling the water pump to operate according to the first target frequency;
wherein the first frequency control rule is expressed by the following formula:
f1=Round((∆T1-C)*Th/M)+Tset1（1）；
in the formula (1), f1 represents a first target frequency, round represents a rounding function, fatter T1 represents water side temperature difference information, th represents environment temperature information, tset1 represents the current running frequency of the water pump, the value range of C is [3 ℃,7 ℃ and M is [25 ℃,45 ℃);
the controlling the frequency of the liquid pump during operation according to the first temperature information of the liquid side inlet, the temperature information of the liquid side outlet and a preset second frequency control rule comprises the following steps:
Determining liquid side temperature difference information between the first temperature information of the liquid side inlet and the temperature information of the liquid side outlet;
determining a second target frequency according to the first temperature information of the liquid side inlet, the liquid side temperature difference information, the second frequency control rule and the current operating frequency of the liquid pump;
controlling the liquid pump to operate according to the second target frequency;
wherein the second frequency control rule is expressed by the following formula:
f2=Round((∆T2-D)*T0/N)+Tset2（2）；
in the formula (2), f2 represents a second target frequency, round represents a rounding function, T2 represents liquid-side temperature difference information, T0 represents first temperature information of a liquid-side inlet, tset2 represents the current operating frequency of the liquid pump, the value range of D is [3 ℃,7 ℃, and the value range of N is [30 ℃,50 ].
2. The method according to claim 1, wherein the method further comprises:
detecting second temperature information of a liquid side inlet of the plate heat exchanger based on a third preset period;
controlling the frequency of the water pump and the liquid pump when the water pump starts to operate in a current third preset period according to the second temperature information of the liquid side inlet and a preset third frequency control rule; wherein the first preset period and the second preset period are both smaller than the third preset period.
3. The method of claim 2, wherein the preset third frequency control rule includes a one-to-one correspondence between a plurality of temperature information intervals and a plurality of preset frequencies; the controlling the frequency of the water pump and the liquid pump when starting to operate in the current third preset period according to the second temperature information of the liquid side inlet and the preset third frequency control rule comprises the following steps:
determining a matched temperature information interval, wherein the matched temperature information interval is a temperature information interval matched with the second temperature information in the plurality of temperature information intervals;
determining the preset frequency corresponding to the matched temperature information interval in the one-to-one correspondence;
and controlling the water pump and the liquid pump to start to operate according to the determined preset frequency in the current third preset period.
4. The utility model provides a cooling unit controlling means, cooling unit includes plate heat exchanger, water pump and liquid pump at least, its characterized in that, the device includes first detection module, first control module, second detection module and second control module:
the first detection module is used for detecting the environmental temperature information of the cooling unit, the temperature information of the water side inlet of the plate heat exchanger and the temperature information of the water side outlet of the plate heat exchanger based on a first preset period;
The first control module is used for controlling the frequency of the water pump during operation according to the environmental temperature information, the temperature information of the water side inlet, the temperature information of the water side outlet and a preset first frequency control rule;
the second detection module is used for detecting first temperature information of a liquid side inlet of the plate heat exchanger and temperature information of a liquid side outlet of the plate heat exchanger based on a second preset period;
the second control module is used for controlling the frequency of the liquid pump during operation according to the first temperature information of the liquid side inlet, the temperature information of the liquid side outlet and a preset second frequency control rule;
wherein the first control module is configured to:
determining water side temperature difference information between the temperature information of the water side inlet and the temperature information of the water side outlet;
determining a first target frequency according to the environmental temperature information, the water side temperature difference information, the first frequency control rule and the current running frequency of the water pump;
controlling the water pump to operate according to the first target frequency;
wherein the first frequency control rule is expressed by the following formula:
f1=Round((∆T1-C)*Th/M)+Tset1（1）；
In the formula (1), f1 represents a first target frequency, round represents a rounding function, fatter T1 represents water side temperature difference information, th represents environment temperature information, tset1 represents the current running frequency of the water pump, the value range of C is [3 ℃,7 ℃ and M is [25 ℃,45 ℃);
wherein the second control module is configured to:
determining liquid side temperature difference information between the first temperature information of the liquid side inlet and the temperature information of the liquid side outlet;
determining a second target frequency according to the first temperature information of the liquid side inlet, the liquid side temperature difference information, the second frequency control rule and the current operating frequency of the liquid pump;
controlling the liquid pump to operate according to the second target frequency;
wherein the second frequency control rule is expressed by the following formula:
f2=Round((∆T2-D)*T0/N)+Tset2（2）；
in the formula (2), f2 represents a second target frequency, round represents a rounding function, T2 represents liquid-side temperature difference information, T0 represents first temperature information of a liquid-side inlet, tset2 represents the current operating frequency of the liquid pump, the value range of D is [3 ℃,7 ℃, and the value range of N is [30 ℃,50 ].
5. An electronic device, the electronic device comprising:
One or more processors;
a memory having one or more computer programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the cooling unit control method of any of claims 1-3.
6. A computer readable medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the cooling unit control method according to any one of claims 1-3.
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