CN111902023B - Cabinet air volume control system and control method - Google Patents
Cabinet air volume control system and control method Download PDFInfo
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- CN111902023B CN111902023B CN202010738173.9A CN202010738173A CN111902023B CN 111902023 B CN111902023 B CN 111902023B CN 202010738173 A CN202010738173 A CN 202010738173A CN 111902023 B CN111902023 B CN 111902023B
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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
- H05K7/20718—Forced ventilation of a gaseous coolant
- H05K7/20745—Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
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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
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Abstract
The invention discloses a cabinet air volume control system and a control method, wherein the cabinet air volume control system comprises a load monitor, a main controller, an air supply controller and an air conditioner blower, and the actual air volume demand of a load blower of load equipment is considered, the load monitor is used for detecting the air volume data of the load blower, and the air volume data of the load blower is transmitted to the main controller; the main controller is used for calculating and obtaining total air volume demand according to the air volume data of the load fan and sending a total air volume demand signal to the air supply controller according to the total air volume demand; the air supply controller is used for adjusting the rotating speed of the air conditioner blower according to the total air volume demand signal so as to realize the matching of the air supply volume of the air conditioner according to the air inlet demand of the load fan of the load equipment, avoid the phenomenon of energy waste or poor heat dissipation of the air volume deficiency system, ensure that the air supply state in the cabinet is optimal, and ensure that the cold and hot air flows in the cabinet are more coordinated and smoother.
Description
Technical Field
The invention relates to the field of air volume control systems, in particular to a cabinet air volume control system and a control method.
Background
In recent years, as the integration of electronics increases, the heat flux density of large cabinets in data center and telecommunications rooms increases. The energy consumption of data center rooms has led to the beginning of emphasis in various countries around the world, and investors and users in data centers have come to appreciate the importance of data center energy conservation.
The current air conditioner heat dissipation mode applied to the inside of an integrated cabinet of a communication system is mainly divided into two modes, one is to adopt a door hanging type air conditioner for heat dissipation, and the upper and lower parts of the cabinet are simply used as a cold area and a hot area for circulating heat exchange; the other is to adopt a rack-mounted air conditioner, and the front part and the rear part of the cabinet are used as a cold area and a hot area for circulating heat exchange. Compared with the first mode, the second mode is more in line with the air flow direction of communication equipment in the cabinet, and the advantages of precisely refrigerating and eliminating local heat islands can be achieved through special air flow organization design. However, the heat exchange in the first mode or the heat exchange in the second mode is only to continuously perform quantitative air supply according to a rated air supply amount, and the air supply amount is not supplied as required, so that the phenomena of excessive air quantity, energy waste or poor heat dissipation of a system due to insufficient air quantity are easily caused.
Disclosure of Invention
The invention provides a cabinet air quantity control system and a control method, which aim to solve the problems that the rated air quantity is used for continuously and quantitatively supplying air, the air quantity is not supplied according to the requirement, the air quantity is excessive, the energy waste or the poor heat dissipation phenomenon of a system is easy to cause.
An air volume control system of a cabinet comprises a load monitor, a main controller, an air supply controller and an air conditioner blower:
the load monitor is used for detecting the air volume data of the load fan and transmitting the air volume data of the load fan to the main controller;
the main controller is used for calculating and obtaining total air volume demand according to the air volume data of the load fan, and sending a total air volume demand signal to the air supply controller according to the total air volume demand;
the air supply controller is used for adjusting the rotating speed of the air conditioner blower according to the total air volume demand signal.
A cabinet air volume control method, wherein the cabinet is provided with the cabinet air volume control system, and the control method comprises the following steps:
the load monitor detects the air volume data of the load fan and transmits the air volume data of the load fan to the main controller;
the main controller calculates and obtains the total air volume demand according to the air volume data of the load fan;
the main controller sends the total air volume demand signal to the air supply controller according to the total air volume demand;
the air supply controller receives the total air volume demand signal sent by the main controller, and adjusts the rotating speed of the air conditioner blower according to the total air volume demand signal.
The cabinet air volume control system comprises a load monitor, a main controller, an air supply controller and an air conditioner blower, wherein the load monitor is used for detecting the air volume data of a load blower in consideration of the actual air volume demand of the load blower of load equipment, and the air volume data of the load blower is transmitted to the main controller; the main controller is used for calculating and obtaining total air volume demand according to the air volume data of the load fan, and sending a total air volume demand signal to the air supply controller according to the total air volume demand; the air supply controller is used for adjusting the rotating speed of the air conditioner blower according to the total air volume demand signal so as to realize the matching of the air supply volume of the air conditioner according to the air inlet demand of the load fan of the load equipment, avoid the phenomenon of energy waste or poor heat dissipation of an air volume deficiency system, ensure that the air supply state in the cabinet is optimal, and ensure that the cold and hot air flows in the cabinet are more coordinated and smooth.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of a cabinet air volume control system according to an embodiment of the invention;
FIG. 2 is a schematic view of airflow in a cabinet of a cabinet air volume control system according to an embodiment of the invention;
FIG. 3 is a schematic diagram of another embodiment of a cabinet air volume control system according to the present invention;
FIG. 4 is a schematic diagram of another embodiment of a cabinet air volume control system according to the present invention;
FIG. 5 is a schematic diagram of another embodiment of a cabinet air volume control system according to the present invention;
FIG. 6 is a schematic diagram of another embodiment of a cabinet air volume control system according to the present invention;
FIG. 7 is a flow chart of a control method of the cabinet air volume control system according to an embodiment of the invention;
FIG. 8 is another flow chart of a control method of the cabinet air volume control system according to an embodiment of the invention;
FIG. 9 is another flow chart of a control method of the cabinet air volume control system according to an embodiment of the invention;
FIG. 10 is another flow chart of a control method of the cabinet air volume control system according to an embodiment of the invention;
FIG. 11 is another flow chart of a control method of the cabinet air volume control system according to an embodiment of the invention;
FIG. 12 is a schematic diagram of a computer device in accordance with an embodiment of the invention.
Wherein, each reference sign in the figure:
1. a load monitor; 2. a main controller; 3. an air supply controller; 4. an air conditioner blower; 5. a hot zone monitor; 6. a cold zone monitor; 7. a pressure relief fan; 8. an air valve; 9. an ambient temperature harvester.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In an example, as shown in fig. 1 to 3, the cabinet air volume control system according to the embodiment of the present invention includes a load monitor 1, a main controller 2, an air supply controller 3, and an air conditioning blower 4; the load monitor 1 is used for detecting air volume data of a load fan and transmitting the air volume data of the load fan to the main controller 2; the main controller 2 is used for calculating and obtaining total air volume demand according to the air volume data of the load fan, and sending a total air volume demand signal to the air supply controller 3 according to the total air volume demand; the air supply controller 3 is configured to adjust a rotation speed of the air conditioning blower 4 according to the total air volume demand signal.
It will be appreciated that the wind speed of the load fan may be measured by an external measuring instrument, so as to calculate the wind volume data of the load fan, where the external measuring instrument may be the load monitor 1, and the present invention is not limited in particular. Further, the load monitors 1 are arranged according to the number of actual load fans, and the air volume data obtained by monitoring of each load monitor 1 are uploaded to the main controller for summarizing.
Optionally, the wind speed of the load fan is calculated by the following wind volume calculation formula, so as to obtain the wind volume data, wherein the wind volume calculation formula is as follows:
wherein Q2 is the air quantity of the load fan; d2 is the diameter of the load fan, N2 is the rotating speed of the load fan, Q1 is the air volume parameter of the standard load fan, N1 is the rotating speed parameter of the standard load fan, and D1 is the diameter parameter of the standard load fan.
As an extension, the control signal of the load fan is obtained through built-in software or a communication protocol interface mode, and the rotating speed of the load fan is extracted through the control signal, so that the air quantity of the load fan is calculated.
Understandably, the air supply controller 3 is installed at an air supply fan of an air conditioner or other heat exchange equipment, and the control logic can be embedded into a control circuit of the air conditioner in a software mode; the air supply controller 3 is configured to adjust the rotation speed of the air conditioning blower 4 according to the total air volume demand signal sent by the main controller 2, and control the rotation speed of the air conditioning blower 4 in real time so as to match the rotation speed of the load blower.
In this embodiment, the cabinet air volume control system includes a load monitor 1, a main controller 2, an air supply controller 3, and an air conditioner blower 4, and the load monitor 1 is used to detect the air volume data of the load blower in consideration of the actual air volume demand of the load blower of the load device, and transmit the air volume data of the load blower to the main controller 2; the main controller 2 is used for calculating and obtaining total air volume demand according to the air volume data of the load fan, and sending a total air volume demand signal to the air supply controller 3 according to the total air volume demand; the air supply controller 3 is used for adjusting the rotating speed of the air conditioning blower 4 according to the total air volume demand signal so as to realize matching of the air supply volume of the air conditioner according to the air inlet demand of the load fan of the load equipment, improve the use efficiency of refrigerating and air supply of the air conditioning blower, avoid the phenomenon of energy waste or poor heat dissipation of an air volume deficiency system, realize obvious energy saving effect, ensure that the air supply state in the cabinet is optimal, ensure that the cold and hot air flows in the cabinet are more coordinated and smooth, and avoid hot air accumulation and air vortex phenomenon.
In an embodiment, as shown in fig. 4, the hot zone and the cold zone of the present invention refer to a cold air zone and a hot air zone divided into an inner space of a cabinet, the cabinet air volume control system further includes a hot zone monitor 5 and a cold zone monitor 6, the hot zone monitor 5 is disposed in the hot zone, and the cold zone monitor 6 is disposed in the cold zone; the hot zone monitor 5 is configured to collect a first hot air pressure of air flowing in a hot zone, and send the first hot air pressure to the main controller 2; the cold area monitor 6 is configured to collect a first cold air pressure of air flow in a cold area, and send the first cold air pressure to the main controller 2; the main controller 2 is further configured to determine whether the cabinet air volume is balanced according to a first ratio of the first hot air pressure to the first cold air pressure; if the judging result of the main controller is that the cabinet air quantity is not balanced, a correction signal is sent to the air supply controller 3; the blower controller 3 is further configured to adjust a rotational speed of the air conditioning blower 4 according to the correction signal.
It is understood that the heat zone monitor 5 is installed in the heat zone inside the cabinet, and the heat zone monitor 5 can perform signal acquisition on the temperature of the heat zone and the wind pressure of the air flow, wherein the acquisition can be performed by one point and can be performed by multiple points.
Understandably, the cold zone monitor 6 is installed in a cold zone inside the cabinet, and the cold zone monitor 6 can perform signal collection on the temperature of the cold zone and the wind pressure of the air flow, wherein the collection can be performed by one point and can be performed by multiple points.
In this embodiment, the internal environment in the cabinet is considered, the hot air pressure in the hot area is monitored by adopting the hot area monitor 5, the cold air pressure in the cold area is monitored by adopting the cold area monitor 6, whether the air volume of the cabinet is balanced is judged according to the first ratio of the first hot air pressure fed back by the hot area monitor 5 to the first cold air pressure fed back by the cold area monitor 6, if the air volume of the cabinet is not balanced as a result of the judgment, the rotating speed of the air conditioner blower 4 is adjusted according to the correction signal, and the internal environment in the cabinet is considered in this embodiment, so that the cold and hot air flows in the cabinet are more balanced and smooth.
In an embodiment, as shown in fig. 5, the cabinet air volume control system of the present invention further includes a pressure relief fan 7; the main controller 2 is further configured to determine whether an air volume demand of a cabinet load exceeds a heat exchange maximum capacity of an air conditioner of the cabinet, if the air volume demand of the cabinet load exceeds the heat exchange maximum capacity of the air conditioner, determine whether the first hot air pressure exceeds a first preset threshold, and if the first hot air pressure exceeds the first preset threshold, send a first indication signal to the pressure relief fan 7; the pressure relief fan 7 is used for discharging hot air of the hot area to the outside of the cabinet in an emergency mode according to the first indication signal.
The first preset threshold value is understandably the highest bearing wind pressure value of the preset hot zone; if the air quantity demand of the cabinet load exceeds the maximum heat exchange capacity of the air conditioner, the hot air pressure of the hot area continuously rises, whether the first hot air pressure exceeds a first preset threshold value is judged, and if the first hot air pressure exceeds the first preset threshold value, hot air in the cabinet is discharged to the outside of the cabinet in an emergency mode.
In this embodiment, whether the air volume of the cabinet reaches the equilibrium state may be determined by determining whether the air volume demand of the cabinet load exceeds the heat exchange maximum capacity of the cabinet air conditioner, if the air volume demand of the cabinet load exceeds the heat exchange maximum capacity of the air conditioner, the hot air pressure in the hot zone continuously rises, and at this time, whether the first hot air pressure exceeds a first preset threshold value is determined, if the first hot air pressure exceeds the first preset threshold value, hot air in the cabinet is discharged to the outside of the cabinet in an emergency manner, so that the hot air in the cabinet is discharged to the outside of the cabinet rapidly, and the cold and hot air flow in the cabinet is more balanced and smooth.
In an embodiment, as shown in fig. 6, the cabinet air volume control system of the present invention further includes an air valve 8 and an ambient temperature collector 9; the environmental temperature collector 9 is configured to collect an environmental temperature outside the cabinet and send the environmental temperature to the main controller 2; the main controller 2 is further configured to determine whether the temperature of the cold area is greater than the ambient temperature, if the temperature of the cold area is greater than the ambient temperature, determine whether the first cold air pressure exceeds a second preset threshold, and if the first cold air pressure exceeds the second preset threshold, send a second indication signal to the air valve 8; the air valve 8 is used for introducing air outside the cabinet into the cabinet according to the second indication signal.
Understandably, the ambient temperature collector 9 is installed outside the cabinet, and the ambient temperature collector 9 collects the ambient temperature outside the cabinet and transmits the collected ambient temperature to the main controller 2.
The second preset threshold value is understandably the highest bearing wind pressure value of the preset cold area; optionally, if the air volume demand of the cabinet load exceeds the heat exchange maximum capacity of the air conditioner, the air volume supply of the cold area is insufficient, and if the temperature of the cold area is greater than the ambient temperature and the first cold air pressure exceeds a second preset threshold, a second indication signal is sent to the air valve 8, and the air outside the cabinet is introduced into the cabinet as the supplement of the air volume.
Optionally, after the pressure relief fan 7 is turned on, it is determined whether the temperature of the cold area is greater than the ambient temperature, and if the temperature of the cold area is greater than the ambient temperature and the first cold air pressure exceeds a second preset threshold, a second indication signal is sent to the air valve 8, and air outside the cabinet is introduced into the cabinet as a supplement of air quantity.
In this embodiment, the ambient temperature outside the cabinet is collected by the ambient temperature collector 9, and then the temperature of the cold area is compared with the ambient temperature, and meanwhile, whether the first cold air pressure exceeds the second preset threshold is judged, if the first cold air pressure exceeds the second preset threshold, the air outside the cabinet is introduced into the cabinet to supplement the air quantity, so that the air outside the cabinet is quickly supplemented into the cabinet, and the cold and hot air flow in the cabinet is more coordinated and smoother.
In an embodiment, the cabinet air volume control system of the present invention further includes a fault alarm; the main controller 2 is further configured to calculate a second ratio of a second hot air pressure sent by the hot area monitor 5 to a second cold air pressure sent by the cold area monitor 6 after the opening time of the pressure relief fan 7 and the air valve 8 exceeds the opening time of the air valve, and determine whether the air volume of the cabinet is balanced according to the second ratio, and if the air volume of the cabinet is not balanced, send an alarm signal to the fault alarm; the fault warning device is used for displaying a fault warning mode according to the warning signal.
The air valve opening duration is a preset time length, for example, the air valve opening duration is 30 minutes, 1 hour, 2 hours, etc., and the invention is not limited in particular; when the pressure relief fan 7 and the air valve 8 are started to reach the opening time of the air valve, the main controller 2 can judge whether the air quantity of the cabinet reaches balance or not according to a second ratio between the second cold air pressure and the second hot air pressure collected by the cold area and the hot area, if the air quantity of the cabinet reaches balance, the existing state is maintained, and if the air quantity of the cabinet does not reach balance, the maximum air suction of the pressure relief fan 7 and the maximum air supply of the air valve 8 are maintained, and meanwhile, a fault alarm mode is displayed.
In this embodiment, whether the cabinet air volume is balanced is determined by calculating a second ratio of the second hot air pressure sent by the hot area monitor 5 to the second cold air pressure sent by the cold area monitor 6, and if the cabinet air volume is not balanced, an alarm signal is sent to display a fault alarm mode so as to remind the user that the air volume in the cabinet is too high.
In an embodiment, as shown in fig. 7, the cabinet is deployed with the cabinet air volume control system, and the control method of the cabinet air volume control system is applied to the cabinet air volume control system, and the control method of the cabinet air volume control system includes the following steps:
s10: the load monitor 1 detects the air volume data of the load fan and transmits the air volume data of the load fan to the main controller 2;
s20: the main controller 2 calculates and obtains the total air volume demand according to the air volume data of the load fan;
s30: the main controller 2 sends the total air volume demand signal to the air supply controller 3 according to the total air volume demand;
s40: the air supply controller 3 receives the total air volume demand signal sent by the main controller 2, and adjusts the rotation speed of the air conditioning blower 4 according to the total air volume demand signal.
Understandably, each load monitor 1 acquires the air volume data of a load fan of the load device in real time and transmits the air volume data of the load fan to the main controller 2; the main controller 2 performs addition operation according to the air volume data on each load monitor 1 to obtain the total air volume demand; the main controller 2 sends the total air volume demand signal to the air supply controller 3 according to the total air volume demand; the main controller sends the total air quantity demand signal to the air supply controller; the air supply controller 3 calculates the total air volume demand according to an air volume calculation formula to obtain the rotating speed of the load fan, sends the total air volume demand signal to the air supply controller 3 according to the rotating speed of the load fan, and transmits the rotating speed control signal to the air conditioner fan 4, and the air conditioner fan 4 adjusts the rotating speed.
In an embodiment, as shown in fig. 8, the hot zone and the cold zone refer to the internal space of the cabinet divided into a cold air area and a hot air area, the cabinet air volume control system further includes a hot zone monitor 5 and a cold zone monitor 6, and the control method further includes the following steps:
s50: the hot zone monitor 5 collects a first hot wind pressure of air flow of a hot zone and sends the first hot wind pressure to the main controller 2;
s60: the cold zone monitor 6 collects a first cold air pressure of air flow of a cold zone and sends the first cold air pressure to the main controller 2;
s70: the main controller 2 judges whether the air quantity of the cabinet is balanced according to a first ratio of the first hot air pressure to the first cold air pressure;
s80: if the judging result of the main controller is that the cabinet air quantity is not balanced, a correction signal is sent to the air supply controller 3;
s90: the blower controller 3 adjusts the rotation speed of the air conditioner blower 4 based on the correction signal.
Understandably, after the air conditioning supply reaches the air conditioning supply opening duration, the hot zone monitor 5 starts to collect the first hot air pressure of the air flow in the hot zone, and the cold zone monitor 6 collects the first cold air pressure of the air flow in the cold zone and sends the first hot air pressure and the first cold air pressure to the main controller 2, where the air conditioning supply opening duration refers to a preset air conditioning supply opening duration, and the air conditioning supply opening duration may be 30 minutes, 1 hour, 2 hours, and the like, and the invention is not limited in particular.
The main controller 2 calculates a first ratio of the first hot air pressure and the first cold air pressure, and then determines whether the first ratio is within a preset ratio range to determine whether the air volume of the cabinet is balanced, wherein the preset ratio range is a preset ratio range, for example, the preset ratio range may be 0.8-1.2, and the preset ratio range is that the deviation is positive or negative 20%, that is, if the first ratio is within the preset ratio range, it is indicated that the air volume of the cabinet is balanced, and the main controller 2 does not need to send a correction signal to the air supply controller 3, and the air conditioner blower 4 maintains the original rotation speed; if the first ratio is not within the preset ratio range, it is indicated that the air volume of the cabinet is not balanced, correction data is calculated according to the deviation value and the deviation direction of the first ratio, and correction signals are sent according to the correction data, wherein the first ratio is greater than 1.0 and is forward deviation, which indicates that the first hot air pressure is large, the air volume is insufficient, the first ratio is smaller than 1 and is reverse deviation, which indicates that the first cold air pressure is large, the air volume is excessive, the deviation value of the first ratio is the minimum difference between the first ratio and the preset ratio range, if the first ratio is 0.6, the preset ratio range is 0.8-1.2, the deviation value of the first ratio is 0.2, and the first ratio is smaller than 1.0, which indicates that the first cold air pressure is large, the air volume of the first hot air pressure is required to be increased or the air volume of the first cold air pressure is required to be decreased, and the correction signals of the air volume of the first hot air pressure are required to be increased are sent to the air supply controller 3, and the air controller 3 adjusts the air conditioner fan speed according to the correction signals.
In an embodiment, as shown in fig. 9, the cabinet air volume control system further includes a pressure relief fan 7, and the control method further includes the following steps:
s100: the main controller 2 judges whether the air volume demand of the cabinet load exceeds the maximum heat exchange capacity of the cabinet air conditioner;
s110: if the air volume demand of the cabinet load exceeds the maximum heat exchange capacity of the air conditioner, judging whether the first hot air pressure exceeds a first preset threshold value;
s120: if the first hot air pressure exceeds a first preset threshold value, the main controller 2 sends a first indication signal to the pressure relief fan 7;
s130: the pressure relief fan 7 is used for discharging hot air in the hot area to the outside of the cabinet in an emergency mode according to the first indication signal.
Understandably, the preset cycle times of steps S40 to S70 are set, where the preset cycle times are preset cycle times of the steps, and the preset cycle times may be 3 times; if the circulation times of the steps S40-S70 exceed the preset circulation times, judging whether the air volume demand of the cabinet load exceeds the heat exchange maximum capacity of the cabinet air conditioner by judging whether the air volume of the cabinet is balanced, and if the air volume of the cabinet is still unbalanced, indicating that the air volume demand of the cabinet load in the cabinet exceeds the heat exchange maximum capacity of the air conditioner.
If the air volume demand of the cabinet load exceeds the maximum heat exchange capacity of the air conditioner, the main controller 2 sends a first indication signal to the pressure relief fan 7, the pressure relief fan 7 is started, and hot air accumulated in the hot area is discharged to the outside of the cabinet in an emergency.
In an embodiment, as shown in fig. 10, the cabinet air volume control system further includes an air valve 8 and an ambient temperature collector 9, and the control method further includes the following steps:
s140: the environmental temperature collector 9 collects the environmental temperature outside the cabinet and sends the environmental temperature to the main controller 2;
s150: the main controller 2 judges whether the temperature of the cold zone is greater than the ambient temperature;
s160: if the temperature of the cold area is greater than the ambient temperature, the main controller 2 judges whether the first cold air pressure exceeds a second preset threshold;
s170: if the first cold air pressure exceeds a second preset threshold value, the main controller 2 sends a second indication signal to the air valve 8;
s180: the air valve 8 introduces air outside the cabinet into the cabinet according to the second indication signal.
Understandably, after the pressure relief fan 7 is started, the main controller 2 judges whether the temperature of the cold area is greater than the ambient temperature, if the temperature of the cold area is greater than the ambient temperature and the first cold air pressure exceeds the second preset threshold, the air valve 8 is opened to introduce external fresh air, the air outside the cabinet is introduced into the cabinet, and the air supply quantity is increased.
In an embodiment, as shown in fig. 11, the cabinet air volume control system further includes a fault alarm, and the control method further includes the following steps:
s190: after the opening time of the pressure relief fan 7 and the air valve 8 exceeds the opening time of the air valve, the main controller 2 calculates a second ratio of a second hot air pressure sent by the hot area monitor 5 to a second cold air pressure sent by the cold area monitor 6;
s200: the main controller judges whether the air quantity of the cabinet is balanced according to the second ratio;
s210: if the air quantity of the cabinet is not balanced, the main controller 2 sends an alarm signal to the fault alarm;
s220: the fault alarm displays a fault alarm mode according to the alarm signal.
Understandably, after the opening time of the pressure relief fan 7 and the air valve 8 exceeds the opening time of the air valve, the main controller 2 calculates a second ratio of the second hot air pressure sent by the hot zone monitor 5 to the second cold air pressure sent by the cold zone monitor 6, where the opening time of the air valve refers to a preset opening time of the air valve, and the opening time of the air valve may be 30 minutes, 1 hour, 2 hours, and so on.
And judging whether the air quantity of the cabinet is balanced or not according to the second ratio, if the air quantity of the cabinet is balanced, maintaining the existing state, and if the air quantity of the cabinet is not balanced, maintaining the maximum air supply of the maximum air draft fan 7 and the air valve 8, and displaying a fault alarm mode.
It should be understood that the sequence number of each step in the above embodiment does not mean the sequence of execution sequence, and the execution sequence of each process should be determined by its function and internal logic, and should not limit the implementation process of the present invention in any way.
In an embodiment, a cabinet air volume control device is provided, where the cabinet air volume control device corresponds to the cabinet air volume control method in the above embodiment one by one. The cabinet air volume control device comprises an air volume data detection module, a calculation module, a sending module and an adjustment module. The functional modules are described in detail as follows:
the load monitor detects the air volume data of the load fan and transmits the air volume data of the load fan to the main controller;
the calculation module is used for calculating and obtaining the total air volume demand according to the air volume data of the load fan by the main controller;
the sending module is used for sending the total air quantity demand signal to the air supply controller according to the total air quantity demand by the main controller;
and the adjusting module is used for receiving the total air volume demand signal sent by the main controller by the air supply controller and adjusting the rotating speed of the air conditioner blower according to the total air volume demand signal.
For specific limitation of the cabinet air volume control device, reference may be made to the limitation of the cabinet air volume control method hereinabove, and the description thereof will not be repeated here. All or part of the modules in the cabinet air volume control device can be realized by software, hardware and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, as shown in fig. 12, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
the load monitor detects the air volume data of the load fan and transmits the air volume data of the load fan to the main controller;
the main controller calculates and obtains the total air volume demand according to the air volume data of the load fan;
the main controller sends the total air volume demand signal to the air supply controller according to the total air volume demand;
the air supply controller receives the total air volume demand signal sent by the main controller, and adjusts the rotating speed of the air conditioner blower according to the total air volume demand signal.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:
the load monitor detects the air volume data of the load fan and transmits the air volume data of the load fan to the main controller;
the main controller calculates and obtains the total air volume demand according to the air volume data of the load fan;
the main controller sends the total air volume demand signal to the air supply controller according to the total air volume demand;
the air supply controller receives the total air volume demand signal sent by the main controller, and adjusts the rotating speed of the air conditioner blower according to the total air volume demand signal.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various 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.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (8)
1. The cabinet air volume control system is characterized by comprising a load monitor, a main controller, an air supply controller and an air conditioner blower, wherein a hot zone and a cold zone are divided into a cold air zone and a hot air zone in the internal space of the cabinet, the cabinet air volume control system also comprises a hot zone monitor and a cold zone monitor, the hot zone monitor is arranged in the hot zone, and the cold zone monitor is arranged in the cold zone;
the load monitor is used for detecting the air volume data of the load fan and transmitting the air volume data of the load fan to the main controller;
the main controller is used for calculating and obtaining total air volume demand according to the air volume data of the load fan, and sending a total air volume demand signal to the air supply controller according to the total air volume demand;
the air supply controller is used for adjusting the rotating speed of the air conditioner blower according to the total air volume demand signal;
the hot zone monitor is used for collecting first hot air pressure of air flow of a hot zone and sending the first hot air pressure to the main controller;
the cold area monitor is used for collecting first cold air pressure of air flow of a cold area and sending the first cold air pressure to the main controller;
the main controller is also used for judging whether the air quantity of the cabinet is balanced or not according to a first ratio of the first hot air pressure to the first cold air pressure; if the judging result of the main controller is that the cabinet air quantity is not balanced, a correction signal is sent to the air supply controller;
the air supply controller is also used for adjusting the rotating speed of the air conditioner blower according to the correction signal.
2. The cabinet air volume control system of claim 1, wherein the cabinet air volume control system further comprises a pressure relief fan;
the main controller is further configured to determine whether an air volume demand of a cabinet load exceeds a heat exchange maximum capacity of an air conditioner of the cabinet, if the air volume demand of the cabinet load exceeds the heat exchange maximum capacity of the air conditioner, determine whether the first hot air pressure exceeds a first preset threshold, and if the first hot air pressure exceeds the first preset threshold, send a first indication signal to the pressure relief fan;
the pressure relief fan is used for discharging hot air in the hot area to the outside of the cabinet in an emergency mode according to the first indication signal.
3. The cabinet air volume control system of claim 2, further comprising an air valve and an ambient temperature harvester;
the environment temperature collector is used for collecting the environment temperature outside the cabinet and sending the environment temperature to the main controller;
the main controller is further configured to determine whether the temperature of the cold area is greater than the ambient temperature, if the temperature of the cold area is greater than the ambient temperature, the main controller determines whether the first cold air pressure exceeds a second preset threshold, and if the first cold air pressure exceeds the second preset threshold, a second indication signal is sent to the air valve;
the air valve is used for introducing air outside the cabinet into the cabinet according to the second indication signal.
4. The cabinet air volume control system of claim 3, wherein the cabinet air volume control system further comprises a fault warning;
the main controller is further configured to calculate a second ratio of a second hot air pressure sent by the hot area monitor to a second cold air pressure sent by the cold area monitor after the opening time of the pressure relief fan and the air valve exceeds the opening time of the air valve, and determine whether the air volume of the cabinet is balanced according to the second ratio, and if the air volume of the cabinet is not balanced, send an alarm signal to the fault alarm;
the fault warning device is used for displaying a fault warning mode according to the warning signal.
5. A cabinet air volume control method, wherein the cabinet is provided with the cabinet air volume control system as claimed in any one of claims 1-4, and a hot zone and a cold zone refer to a cold air zone and a hot air zone which are divided into an internal space of the cabinet, the cabinet air volume control system further comprises a hot zone monitor and a cold zone monitor, and the control method comprises:
the load monitor detects the air volume data of the load fan and transmits the air volume data of the load fan to the main controller;
the main controller calculates and obtains the total air volume demand according to the air volume data of the load fan;
the main controller sends the total air volume demand signal to the air supply controller according to the total air volume demand;
the air supply controller receives a total air volume demand signal sent by the main controller and adjusts the rotating speed of the air conditioner blower according to the total air volume demand signal;
the hot zone monitor collects first hot air pressure of air flow of a hot zone and sends the first hot air pressure to the main controller;
the cold area monitor collects first cold air pressure of air flow of a cold area and sends the first cold air pressure to the main controller;
the main controller judges whether the air quantity of the cabinet is balanced or not according to a first ratio of the first hot air pressure to the first cold air pressure;
if the judging result of the main controller is that the cabinet air quantity is not balanced, a correction signal is sent to the air supply controller;
and the air supply controller adjusts the rotating speed of the air conditioner blower according to the correction signal.
6. The control method of claim 5, wherein the cabinet air volume control system further comprises a pressure relief fan, the control method further comprising:
the main controller judges whether the air quantity demand of the cabinet load exceeds the maximum heat exchange capacity of the cabinet air conditioner;
if the air volume demand of the cabinet load exceeds the maximum heat exchange capacity of the air conditioner, judging whether the first hot air pressure exceeds a first preset threshold value;
if the first hot air pressure exceeds a first preset threshold value, the main controller sends a first indication signal to the pressure relief fan;
and the pressure relief fan is used for discharging hot air in the hot area to the outside of the cabinet in an emergency mode according to the first indication signal.
7. The control method of claim 5, wherein the cabinet air volume control system further comprises an air valve and an ambient temperature harvester, the control method further comprising:
the environment temperature collector collects the environment temperature outside the cabinet and sends the environment temperature to the main controller;
the main controller judges whether the temperature of the cold area is greater than the ambient temperature;
if the temperature of the cold area is greater than the ambient temperature, the main controller judges whether the first cold air pressure exceeds a second preset threshold value;
if the first cold air pressure exceeds a second preset threshold value, the main controller sends a second indication signal to the air valve;
and the air valve introduces air outside the cabinet into the cabinet according to the second indication signal.
8. The control method of claim 5, wherein the cabinet air volume control system further comprises a fault warning, the control method further comprising:
after the opening time of the pressure relief fan and the air valve exceeds the opening time of the air valve, the main controller calculates a second ratio of a second hot air pressure sent by the hot area monitor to a second cold air pressure sent by the cold area monitor;
the main controller judges whether the air quantity of the cabinet is balanced according to the second ratio;
if the main controller judges that the air quantity of the cabinet is not balanced, the main controller sends an alarm signal to the fault alarm;
the fault alarm displays a fault alarm mode according to the alarm signal.
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| CN113433989B (en) * | 2021-06-21 | 2022-07-12 | 深圳市科信通信技术股份有限公司 | Heat load system of communication equipment and control method thereof |
| CN116261315B (en) * | 2023-05-12 | 2023-07-11 | 合肥创科电子工程科技有限责任公司 | Cabinet temperature regulation control system |
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