CN111902023A - Cabinet air volume control system and control method - Google Patents
Cabinet air volume control system and control method Download PDFInfo
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- CN111902023A CN111902023A CN202010738173.9A CN202010738173A CN111902023A CN 111902023 A CN111902023 A CN 111902023A CN 202010738173 A CN202010738173 A CN 202010738173A CN 111902023 A CN111902023 A CN 111902023A
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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, the actual air volume requirement of a load fan of load equipment is considered, the load monitor is used for detecting the air volume data of the load fan, and the air volume data of the load fan is transmitted to the main controller; the main controller is used for calculating to obtain a 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 an air blower of the air conditioner according to the total air volume demand signal so as to realize matching the air volume of the air conditioner according to the air inlet demand of a load fan of load equipment, avoid the phenomenon of poor heat dissipation of a system caused by energy waste or insufficient air volume, enable the air supply state in the cabinet to reach the best, and enable cold and hot air flows in the cabinet to be more harmonious and smooth.
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, with higher and higher electronic integration, the heat flux density of large cabinets in data center rooms and telecommunication rooms has also been higher and higher. Energy consumption of data center rooms has been paid attention to various countries around the world, and investors and users of data centers are becoming aware of the importance of data center energy conservation.
The heat dissipation modes of the air conditioner in the integrated cabinet applied to the communication system at present are mainly divided into two modes, one mode is that a door-hung air conditioner is adopted for heat dissipation, and the upper and lower spaces of the cabinet are simply used as a cold area and a hot area for circulating heat exchange; the other type is that a rack type air conditioner is adopted, 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. The second mode is more in line with the airflow direction of the communication equipment in the cabinet than the first mode, and can achieve the advantages of accurate refrigeration and local heat island elimination through special airflow organization design. However, no matter the first mode or the second mode, the quantitative air supply is continuously performed according to a rated air supply quantity, and the air quantity is not supplied according to needs, so that the phenomena of excess air quantity, energy waste or insufficient air quantity and poor system heat dissipation are easily caused.
Disclosure of Invention
The invention provides a cabinet air volume control system and a control method, which aim to solve the problems that rated air volume is continuously supplied quantitatively, air volume is not supplied according to needs, and the phenomena of excess air volume, energy waste or insufficient air volume and poor system heat dissipation are easily caused.
The utility model provides a rack air volume control system, rack air volume control system includes load watch-dog, main control unit, air supply controller and air conditioner forced draught 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 to obtain a 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;
and 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, the cabinet being deployed with the cabinet air volume control system according to any one of claims 1 to 5, the control method comprising:
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 to obtain a 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;
and the air supply controller receives the total air quantity demand signal sent by the main controller and adjusts the rotating speed of the air conditioner blower according to the total air quantity demand signal.
According to the cabinet air volume control system and the control method, the cabinet air volume control system comprises a load monitor, a main controller, an air supply controller and an air conditioner blower, the actual air volume requirement of a load fan of load equipment is considered, the load monitor is used for detecting the air volume data of the load fan, and the air volume data of the load fan is transmitted to the main controller; the main controller is used for calculating to obtain a 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-conditioning blower 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 a load fan of load equipment, avoid the phenomenon of poor heat dissipation of an energy waste or insufficient air volume system, enable the air supply state in the cabinet to be optimal, and enable cold and hot air flow in the cabinet to be more harmonious and smooth.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a cabinet air volume control system according to an embodiment of the present invention;
FIG. 2 is a schematic view of airflow within the cabinet of the cabinet airflow control system in an embodiment of the invention;
FIG. 3 is another schematic diagram of the cabinet airflow control system according to an embodiment of the present invention;
FIG. 4 is a schematic view of another structure of the cabinet airflow control system according to an embodiment of the present invention;
FIG. 5 is a schematic view of another structure of the cabinet airflow control system according to an embodiment of the present invention;
FIG. 6 is a schematic view of another structure of the cabinet airflow control system according to an embodiment of the present invention;
FIG. 7 is a flowchart of a control method of the cabinet airflow control system according to an embodiment of the present invention;
FIG. 8 is another flow chart of a control method of the cabinet airflow control system according to an embodiment of the present invention;
FIG. 9 is another flow chart of a control method of the cabinet airflow control system according to an embodiment of the present invention;
FIG. 10 is another flow chart of a control method of the cabinet airflow control system according to an embodiment of the present invention;
FIG. 11 is another flow chart of a method for controlling the cabinet airflow control system according to an embodiment of the present invention;
FIG. 12 is a schematic diagram of a computing device in accordance with an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
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. and an ambient temperature collector.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In an embodiment, as shown in fig. 1 to 3, a cabinet air volume control system according to an 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 to obtain a 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; and the air supply controller 3 is used for adjusting the rotating speed of the air conditioner blower 4 according to the total air volume demand signal.
Understandably, the external measuring instrument may measure the wind speed of the load fan, so as to calculate the wind volume data of the load fan, for example, the external measuring instrument may be the load monitor 1, and the invention is not limited thereto. Further, the load monitors 1 are arranged according to the number of actual load fans, and the air volume data monitored and acquired by 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 to obtain the wind volume data, where the wind volume calculation formula is:
wherein Q2 is the air volume 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, a control signal of the load fan is obtained through a built-in software or communication protocol interface mode, and the rotating speed of the load fan is extracted through the control signal, so that the air volume 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 control logic can also be embedded into a control circuit of the air conditioner in a software mode; the air supply controller 3 is used for adjusting the rotating speed of the air conditioner blower 4 according to the total air volume demand signal sent by the main controller 2, and controlling the rotating speed of the air conditioner blower 4 in real time to enable the rotating speed to be matched with the rotating speed of the load fan.
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 conditioning blower 4, and the load monitor 1 is used to detect air volume data of a load blower and transmit the air volume data of the load blower to the main controller 2 in consideration of an actual air volume requirement of the load blower of a load device; the main controller 2 is used for calculating to obtain a 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; air supply controller 3 is used for the basis total amount of wind demand signal adjustment air conditioner forced draught blower 4's rotational speed to the realization matches the air supply volume of air conditioner according to the air inlet demand of load equipment's load fan, has improved the availability factor of air conditioner forced draught blower's refrigeration air supply, avoids the energy extravagant or the not enough bad phenomenon of system heat dissipation of amount of wind, and energy-conserving effect is obvious, makes the air supply state in the rack reach the best simultaneously, and the cold and hot air current in the rack is more harmonious and smooth and easy, has avoided hot-air to pile up and the air vortex phenomenon produces.
In an embodiment, as shown in fig. 4, the hot zone and the cold zone of the present invention refer to that the internal space of the cabinet is divided into a cold air zone and a hot air zone, 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 used for collecting a first cold air pressure of air flowing in a cold area and sending 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 judgment result of the main controller is that the air volume of the cabinet is not balanced, sending a correction signal to the air supply controller 3; the air supply controller 3 is also used for adjusting the rotating speed of the air conditioner blower 4 according to the correction signal.
Understandably, the hot zone monitor 5 is installed in the hot zone inside the cabinet, and the hot zone monitor 5 can perform signal acquisition on the temperature of the hot zone and the air pressure of the air flow, wherein the acquisition can be performed at one point and can be performed at multiple points.
Understandably, the cold area monitor 6 is installed in the cold area inside the cabinet, the cold area monitor 6 can collect the signal of the temperature of the cold area and the air pressure of the air flow, wherein, the collection can be a point to collect and can be a plurality of points to collect.
In this embodiment, consider the internal environment in the rack, adopt hot area monitor 5 to monitor the hot-blast pressure in hot area, adopt cold area watch-dog 6 to monitor the cold blast pressure in cold area, according to whether the first ratio of the first hot-blast pressure of hot area monitor 5 feedback and the first cold blast pressure of cold area watch-dog 6 feedback judges the rack amount of wind balanced, if the judged result is that the rack amount of wind is not balanced, again according to correction signal adjustment the rotational speed of air conditioning forced draught blower 4, the internal environment in the rack is considered to this embodiment to make the cold and hot air current in the rack more harmonious and smooth and easy.
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 maximum heat exchange capacity of a cabinet air conditioner, determine whether the first hot air pressure exceeds a first preset threshold if the air volume demand of the cabinet load exceeds the maximum heat exchange capacity of the air conditioner, and send a first indication signal to the pressure relief fan 7 if the first hot air pressure exceeds the first preset threshold; and the pressure relief fan 7 is used for discharging hot air in the hot area to the outside of the cabinet according to the first indication signal in an emergency mode.
Understandably, the first preset threshold value refers to a preset highest borne wind pressure value of the hot zone; if the air volume requirement of the cabinet load exceeds the maximum heat exchange capacity of the air conditioner, continuously increasing the hot air pressure in the hot area, judging whether the first hot air pressure exceeds a first preset threshold value, and if the first hot air pressure exceeds the first preset threshold value, discharging hot air in the cabinet to the outside of the cabinet in an emergency mode.
In this embodiment, whether the cabinet air volume reaches a balanced state can be judged by judging whether the cabinet load air volume requirement exceeds the maximum heat exchange capacity of the cabinet air conditioner, if the cabinet load air volume requirement exceeds the maximum heat exchange capacity of the air conditioner, the hot air pressure in a hot area continuously rises, at the moment, 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 emergently discharged to the outside of the cabinet, so that the hot air in the cabinet is quickly discharged to the outside of the cabinet, and the cold and hot air flow in the cabinet is more coordinated 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 environment temperature collector 9 is used for collecting the environment temperature outside the cabinet and sending the environment 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, determine whether the first cold air pressure exceeds a second preset threshold if the temperature of the cold area is greater than the ambient temperature, and send a second indication signal to the air valve 8 if the first cold air pressure exceeds the second preset threshold; the air valve 8 is used for introducing air outside the cabinet into the cabinet according to the second indication signal.
Understandably, the environment temperature collector 9 is installed outside the cabinet, and the environment temperature collector 9 collects the environment temperature outside the cabinet and sends the collected environment temperature to the main controller 2.
Understandably, the second preset threshold value refers to a preset highest borne wind pressure value of the cold area; optionally, if the air volume demand of the cabinet load exceeds the maximum heat exchange capacity of the air conditioner, the air volume supply of the cold area is insufficient, and if the temperature of the cold area is higher 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 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, so that the air outside the cabinet is introduced into the cabinet as the supplement of the air volume.
In this embodiment, gather the outside ambient temperature of rack through ambient temperature collector 9, compare the temperature and the ambient temperature in cold district again, judge simultaneously whether first cold wind pressure exceeds the second and predetermine the threshold value, if first cold wind pressure exceeds the second and predetermine the threshold value, then introduce the supplementary of the interior conduct amount of wind of rack in the rack with the outside air of rack to inside making the outside air of rack be supplemented into the rack fast, make the cold and hot air current in the rack more harmonious and smooth and easy.
In one embodiment, the cabinet air volume control system of the present invention further comprises 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 zone monitor 5 to a second cold air pressure sent by the cold zone monitor 6 after the opening duration of the pressure relief fan 7 and the air valve 8 exceeds the opening duration of the air valve, determine whether the cabinet air volume is balanced according to the second ratio, and send an alarm signal to the fault alarm if the cabinet air volume is not balanced; the fault alarm is used for displaying a fault alarm mode according to the alarm signal.
Understandably, the opening duration of the air valve refers to a preset time length, for example, the opening duration of the air valve is 30 minutes, 1 hour, 2 hours, etc., and the invention is not limited specifically; when pressure release fan 7 and blast gate 8 start and reach the blast gate and open long back when long, main control unit 2 can judge whether the rack amount of wind reaches the balance according to the second ratio between the second cold wind pressure and the second hot-blast pressure of cold district and hot district collection once more, if the rack amount of wind reaches the balance, then maintains current state, if the rack amount of wind is not balanced, then keeps the biggest convulsions of pressure release fan 7 and the biggest air supply of blast gate 8, shows trouble alarm mode simultaneously.
In this embodiment, whether the air volume of the cabinet is balanced is determined by calculating 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, and if the air volume of the cabinet is not balanced, an alarm signal is sent to display a failure alarm mode to remind a user that the air volume in the cabinet is too high.
In an embodiment, as shown in fig. 7, the cabinet is disposed 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 the total air volume requirement 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: and the air supply controller 3 receives the total air volume demand signal sent by the main controller 2 and adjusts the rotating speed of the air conditioner 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 load equipment in real time and transmits the air volume data of the load fan to the main controller 2; the main controller 2 carries out addition operation according to the air volume data on each load monitor 1 to obtain the total air volume requirement; 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 volume demand signal to the air supply controller; air supply controller 3 calculates total amount of wind demand according to amount of wind computational formula, reachs the rotational speed of load fan, according to the rotational speed of load fan to air supply controller 3 sends total amount of wind demand signal sends rotational speed control signal to air conditioner forced draught blower 4, and air conditioner forced draught blower 4 adjusts the rotational speed.
In an embodiment, as shown in fig. 8, the hot zone and the 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 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 air pressure of air flowing in the hot zone and sends the first hot air pressure to the main controller 2;
s60: the cold area monitor 6 collects a first cold air pressure of air flow of a cold area and sends the first cold air pressure to the main controller 2;
s70: the main controller 2 judges whether the air volume of the cabinet is balanced or not according to a first ratio of the first hot air pressure to the first cold air pressure;
s80: if the judgment result of the main controller is that the air volume of the cabinet is not balanced, sending a correction signal to the air supply controller 3;
s90: and the air supply controller 3 adjusts the rotating speed of the air conditioner blower 4 according to the correction signal.
Understandably, after the air conditioner blowing reaches the opening time of the air conditioner blower, the hot zone monitor 5 starts to collect the first hot air pressure of the air flow in the hot zone, 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, wherein the opening time of the air conditioner blower refers to the preset opening time of the air conditioner, the opening time of the air conditioner blower can be 30 minutes, 1 hour, 2 hours and the like, and the invention is not limited specifically.
The main controller 2 determines whether the cabinet air volume is balanced by calculating a first ratio of the first hot air pressure to the first cold air pressure and then determining whether the first ratio is within a preset ratio range, wherein the preset ratio range refers to a preset ratio range, for example, the preset ratio range may be 0.8-1.2, the preset ratio range is that the deviation is plus or minus 20%, that is, if the first ratio is within the preset ratio range, it indicates that the cabinet air volume is balanced, 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 in the preset ratio range, which indicates that the air volume of the cabinet is not balanced, calculating correction data according to a deviation value of the first ratio and a deviation direction, and sending a correction signal according to the correction data, wherein the first ratio is greater than 1.0 and is a forward deviation, which indicates that the first hot air pressure is large and the air volume is insufficient, the first ratio is less than 1 and is a reverse deviation, which indicates that the first cold air pressure is large and the air volume is excessive, if the first ratio is 0.6 and the preset ratio range is 0.8-1.2, the deviation value of the first ratio is 0.2 and the first ratio is less than 1.0, which indicates that the first cold air pressure is large and the air volume is excessive, which indicates that the air volume of the first hot air pressure needs to be increased or the air volume of the first cold air pressure needs to be decreased, and the correction signal, which indicates that the air volume of the first cold air pressure needs to be increased or the air volume of the first cold air pressure needs to be decreased, is sent to the air volume of the first cold air pressure And the controller 3, wherein the air supply controller 3 adjusts the rotating speed of the air conditioner air supply blower 4 according to the correction signal.
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 requirement 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, the main controller 2 sends a first indication signal to the pressure relief fan 7;
s130: and the pressure relief fan 7 emergently discharges the hot air in the hot area to the outside of the cabinet according to the first indication signal.
Understandably, the preset cycle times of the steps S40 to S70 are set, wherein the preset cycle times are the preset cycle times of the steps, and the preset cycle times can 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 maximum heat exchange capacity of the cabinet air conditioner by judging whether the cabinet air volume is balanced, and if the cabinet air volume is not balanced, indicating that the air volume demand of the cabinet load in the cabinet exceeds the maximum heat exchange 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 a hot area is discharged to the outside of the cabinet in an emergency mode.
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 environment temperature collector 9 collects the environment temperature outside the cabinet and sends the environment temperature to the main controller 2;
s150: the main controller 2 judges whether the temperature of the cold area is greater than the ambient temperature;
s160: if the temperature of the cold area is higher than the ambient temperature, the main controller 2 judges whether the first cold air pressure exceeds a second preset threshold value;
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 higher than the ambient temperature, if the temperature of the cold area is higher than the ambient temperature, and the first cold air pressure exceeds a second preset threshold value, the air valve 8 is opened to introduce the external fresh air, and the air outside the cabinet is introduced into the cabinet to increase the air supply amount.
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 duration of the pressure relief fan 7 and the air valve 8 exceeds the opening duration of the air valve, the main controller 2 calculates a second ratio of a second hot air pressure sent by the hot zone monitor 5 to a second cold air pressure sent by the cold zone monitor 6;
s200: the main controller judges whether the air volume of the cabinet is balanced or not according to the second ratio;
s210: if the air volume of the cabinet is not balanced, the main controller 2 sends an alarm signal to the fault warning device;
s220: the fault alarm displays a fault alarm mode according to the alarm signal.
Understandably, main control unit 2 is in pressure release fan 7 reaches after the time length of opening of blast gate 8 exceeded the blast gate and opened time length, calculate the second hot-blast pressure that hot area watch-dog 5 sent with the second cold wind pressure's that cold area watch-dog 6 sent second ratio, wherein, the time length that the blast gate was opened indicates that preset's blast gate is opened is long, the time length can be for 30 minutes, 1 hour, 2 hours etc. when the blast gate was opened.
And judging whether the air volume of the cabinet is balanced or not according to the second ratio, if so, maintaining the existing state, and if not, keeping the maximum air draft of the pressure relief fan 7 and the maximum air supply of the air valve 8, and simultaneously displaying a fault alarm mode.
It should be understood that, the sequence numbers of the steps in the above embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the present invention.
In an embodiment, an equipment cabinet air volume control device is provided, and the equipment cabinet air volume control device corresponds to the equipment cabinet air volume control method in the embodiment one to 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 explained 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 main controller calculates the total air volume requirement 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;
and the air supply controller receives the total air quantity demand signal sent by the main controller and adjusts the rotating speed of the air conditioner blower according to the total air quantity demand signal.
For specific limitations of the cabinet air volume control device, reference may be made to the above limitations on the cabinet air volume control method, which is not described herein again. All or part of each module in the cabinet air volume control device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, as shown in fig. 12, including 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 to obtain a 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;
and the air supply controller receives the total air quantity demand signal sent by the main controller and adjusts the rotating speed of the air conditioner blower according to the total air quantity 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 to obtain a 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;
and the air supply controller receives the total air quantity demand signal sent by the main controller and adjusts the rotating speed of the air conditioner blower according to the total air quantity demand signal.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile 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), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
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;
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 to obtain a 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;
and the air supply controller is used for adjusting the rotating speed of the air conditioner blower according to the total air volume demand signal.
2. The cabinet air volume control system of claim 1, wherein the hot zone and the 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 further comprises a hot zone monitor and a cold zone monitor, the hot zone monitor is disposed in the hot zone, and the cold zone monitor is disposed in the cold zone;
the hot area monitor is used for collecting a first hot air pressure of air flowing in a hot area 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 volume 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 judgment result of the main controller is that the air volume of the cabinet is not balanced, sending a correction signal to the air supply controller;
and the air supply controller is also used for adjusting the rotating speed of the air conditioner blower according to the correction signal.
3. The cabinet air volume control system of claim 2, further comprising a pressure relief blower;
the main controller is further used for judging whether the air volume demand of the cabinet load exceeds the maximum heat exchange capacity of the cabinet air conditioner, judging whether the first hot air pressure exceeds a first preset threshold value if the air volume demand of the cabinet load exceeds the maximum heat exchange capacity of the air conditioner, and sending a first indication signal to the pressure relief fan if the first hot air pressure exceeds the first preset threshold value;
the pressure relief fan is used for discharging hot flow air in the hot area to the outside of the cabinet in an emergency mode according to the first indication signal.
4. The cabinet air volume control system of claim 3, further comprising an air valve and an ambient temperature collector;
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 used for judging 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, and if the first cold air pressure exceeds the second preset threshold value, a second indicating 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 indicating signal.
5. The cabinet air volume control system of claim 4, further comprising a fault alarm;
the main controller is further configured to calculate a second ratio of a second hot air pressure sent by the hot zone monitor to a second cold air pressure sent by the cold zone monitor after the opening duration of the pressure relief fan and the air valve exceeds the opening duration of the air valve, determine whether the air volume of the cabinet is balanced according to the second ratio, and send an alarm signal to the fault alarm if the air volume of the cabinet is not balanced;
the fault alarm is used for displaying a fault alarm mode according to the alarm signal.
6. A cabinet air volume control method, wherein the cabinet is provided with the cabinet air volume control system according to any one of claims 1 to 5, 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 to obtain a 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;
and the air supply controller receives the total air quantity demand signal sent by the main controller and adjusts the rotating speed of the air conditioner blower according to the total air quantity demand signal.
7. The control method according to claim 1, wherein the hot zone and the 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 further includes a hot zone monitor and a cold zone monitor, and the control method further includes:
the hot area monitor collects a first hot air pressure of air flowing in a hot area 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 volume 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 judgment result of the main controller is that the air volume of the cabinet is not balanced, sending a correction signal to the air supply controller;
and the air supply controller adjusts the rotating speed of the air conditioner blower according to the correction signal.
8. The control method of claim 1, 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 volume demand of the cabinet load exceeds the maximum heat exchange capacity of the cabinet air conditioner;
if the air volume requirement 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 emergently discharges the hot flow air of the hot area to the outside of the cabinet according to the first indication signal.
9. The control method of claim 1, wherein the cabinet air volume control system further comprises an air valve and an ambient temperature collector, 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 higher 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 indicating signal to the air valve;
the air valve introduces air outside the cabinet into the cabinet according to the second indicating signal.
10. The control method of claim 1, wherein the cabinet air volume control system further comprises a fault alarm, the control method further comprising:
after the opening duration of the pressure relief fan and the air valve exceeds the opening duration of the air valve, the main controller calculates a second ratio of a second hot air pressure sent by the hot zone monitor to a second cold air pressure sent by the cold zone monitor;
the main controller judges whether the air volume of the cabinet is balanced or not according to the second ratio;
if the main controller judges that the air volume 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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| CN202010738173.9A CN111902023B (en) | 2020-07-28 | 2020-07-28 | Cabinet air volume control system and control method |
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| CN202010738173.9A CN111902023B (en) | 2020-07-28 | 2020-07-28 | Cabinet air volume control system and control method |
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