CN111902023A - Cabinet air volume control system and control method - Google Patents

Abstract

The invention discloses a cabinet air volume control system and a control method, wherein the cabinet air volume control system includes a load monitor, a main controller, an air supply controller and an air-conditioning blower. The 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 is used to calculate the total air volume demand according to the air volume data of the load fan, and send the total air volume demand signal according to the total air volume demand. Air controller; the air supply controller is used to adjust the speed of the air conditioner blower according to the total air volume demand signal, so as to match the air supply air volume of the air conditioner according to the air intake demand of the load fan of the load equipment, so as to avoid energy waste or insufficient air volume and poor system heat dissipation. , so that the air supply in the cabinet is optimal, and the hot and cold air flow in the cabinet is more coordinated and smooth.

Description

A kind of cabinet air volume control system and control method

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 technique

In recent years, with the increasing degree of electronic integration, the heat flux density of large cabinets in data center computer rooms and telecommunication equipment rooms is also increasing. The energy consumption of data center equipment rooms has attracted attention from countries around the world, and data center investors and users have begun to realize the importance of data center energy conservation.

Currently, there are two main ways to dissipate heat from the air conditioner inside the integrated cabinet used in the communication system. One is to use the door-mounted air conditioner to dissipate heat, and the upper and lower parts of the cabinet are simply used as the cold area and the hot area for circulating heat exchange; The other is to use rack-mounted air conditioners, and the front and rear parts of the cabinet are used as the cold area and the hot area for circulating heat exchange. Compared with the first method, the second method is more in line with the airflow direction of the communication equipment in the cabinet, and can achieve precise cooling and eliminate the advantages of local heat islands through the special airflow organization design. However, whether it is the first method of heat exchange or the second method of heat exchange, it is only based on a rated air supply volume to continuously supply air volume, not supply air volume on demand, which is likely to cause excess air volume, energy waste or insufficient air volume. unpleasant sight.

SUMMARY OF THE INVENTION

The invention provides a cabinet air volume control system and control method to solve the problem of continuous and quantitative air supply at a rated air supply volume, instead of supplying air volume on demand, easily causing excess air volume, energy waste or insufficient air volume and poor system heat dissipation.

A cabinet air volume control system, the cabinet air volume control system includes a load monitor, a main controller, an air supply controller and an air-conditioning blower:

The load monitor is used to detect the air volume data of the load fan, and transmit the air volume data of the load fan to the main controller;

The main controller is used to calculate the total air volume demand according to the air volume data of the load fan, and send a total air volume demand signal to the air supply controller according to the total air volume demand;

The air supply controller is configured to adjust the rotational speed of the air conditioner blower according to the total air volume demand signal.

A cabinet air volume control method, wherein the cabinet is deployed with the cabinet air volume control system according to any one of claims 1-5, 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 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 rotational speed of the air conditioner blower according to the total air volume demand signal.

The above-mentioned cabinet air volume control system and control method, the cabinet air volume control system includes a load monitor, a main controller, an air supply controller and an air-conditioning blower, and the load monitor is used to detect the actual air volume demand of the load fan of the load equipment. The air volume data of the load fan is output, and the air volume data of the load fan is transmitted to the main controller; the main controller is used to calculate the total air volume demand according to the air volume data of the load fan, and send the total air volume demand according to the total air volume demand. The air volume demand signal is sent to the air supply controller; the air supply controller is used to adjust the rotation speed of the air conditioner blower according to the total air volume demand signal, so as to match the air supply volume of the air conditioner according to the air intake demand of the load fan of the load device , to avoid energy waste or insufficient air volume and poor system heat dissipation, so that the air supply in the cabinet is optimal, and the hot and cold air flow in the cabinet is more coordinated and smooth.

Description of drawings

In order to illustrate the technical solutions of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, which are of great significance to the art For those of ordinary skill, other drawings can also be obtained from these drawings without creative labor.

1 is a schematic structural diagram of a cabinet air volume control system in an embodiment of the present invention;

2 is a schematic diagram of the airflow in the cabinet of the cabinet air volume control system according to an embodiment of the present invention;

3 is another schematic structural diagram of a cabinet air volume control system according to an embodiment of the present invention;

4 is another schematic structural diagram of a cabinet air volume control system in an embodiment of the present invention;

5 is another schematic structural diagram of a cabinet air volume control system in an embodiment of the present invention;

6 is another schematic structural diagram of a cabinet air volume control system in an embodiment of the present invention;

FIG. 7 is a flowchart of a control method of a cabinet air volume control system in an embodiment of the present invention;

8 is another flowchart of a control method of a cabinet air volume control system in an embodiment of the present invention;

9 is another flowchart of a control method of a cabinet air volume control system in an embodiment of the present invention;

10 is another flowchart of a control method of a cabinet air volume control system in an embodiment of the present invention;

11 is another flowchart of a control method of a cabinet air volume control system in an embodiment of the present invention;

FIG. 12 is a schematic diagram of a computer device according to an embodiment of the present invention.

Among them, each reference sign in the figure:

1. Load monitor; 2. Main controller; 3. Air supply controller; 4. Air-conditioning blower; 5. Hot zone monitor; 6. Cold zone monitor; 7. Pressure relief fan; 8. Air valve; 9 , Ambient temperature collector.

Detailed ways

The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the embodiment, as shown in FIGS. 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 conditioner blower. 4; the load monitor 1 is used to detect the air volume data of the load fan, and transmit the air volume data of the load fan to the main controller 2; the main controller 2 is used to detect the air volume of the load fan according to the air volume of the load fan The data is calculated to obtain the total air volume demand, and a total air volume demand signal is sent to the air supply controller 3 according to the total air volume demand; the air supply controller 3 is used to adjust the rotation speed of the air conditioner blower 4 according to the total air volume demand signal.

Understandably, the wind speed of the load fan can be measured by an external measuring instrument, so as to calculate the air volume data of the load fan. Exemplarily, the external measuring instrument can be the load monitor 1, which is not specifically limited in the present invention. Further, the load monitors 1 are arranged according to the actual number of load fans, and the air volume data monitored and obtained by each load monitor 1 are uploaded to the main controller for summary processing.

其中，Q2为负载风机的风量；D2为负载风机的直径，N2为负载风机的转速，Q1为标准的负载风机的风量参数、N1为标准的负载风机的转速参数、D1为标准的负载风机的直径参数。Optionally, the wind speed of the load fan is calculated by the following air volume calculation formula to obtain the air volume data, and the air volume calculation formula is:

Among them, Q2 is the air volume of the load fan; D2 is the diameter of the load fan, N2 is the rotation speed of the load fan, Q1 is the air volume parameter of the standard load fan, N1 is the speed parameter of the standard load fan, and D1 is the standard load fan. diameter parameter.

As an extension, the control signal of the load fan is obtained through built-in software or a communication protocol interface, and the speed of the load fan is extracted from the control signal, thereby calculating the air volume of the load fan.

Understandably, the air supply controller 3 is installed at the air supply fan of the air conditioner or other heat exchange equipment, and the control logic can also be embedded in the control circuit of the air conditioner through software; The total air volume demand signal sent by the controller 2 adjusts the rotational speed of the air-conditioning blower 4, and controls the rotational speed of the air-conditioning blower 4 in real time to match the rotational 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-conditioning blower 4. Considering the actual air volume demand of the load fan of the load equipment, the load monitor is used. 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; the main controller 2 is used to calculate the total air volume demand according to the air volume data of the load fan, according to The total air volume demand sends the total air volume demand signal to the air supply controller 3; the air supply controller 3 is used to adjust the rotational speed of the air conditioner blower 4 according to the total air volume demand signal, so as to realize the intake of the fan according to the load of the load equipment. The air demand matches the air supply volume of the air conditioner, which improves the use efficiency of the cooling air supply of the air conditioner blower, avoids energy waste or insufficient air volume and poor system heat dissipation. The energy saving effect is obvious. The hot and cold air flow inside is more coordinated and smooth, avoiding the accumulation of hot air and the occurrence of air eddy currents.

In one embodiment, as shown in FIG. 4 , the hot zone and the cold zone of the present invention refer to that the interior space of the cabinet is divided into a cold air zone and a hot air zone, and the cabinet air volume control system further includes a hot zone monitor 5 and a hot zone. The cold zone monitor 6, the hot zone monitor 5 is set in the hot zone, the cold zone monitor 6 is set in the cold zone; the hot zone monitor 5 is used to collect the air flow in the hot zone. The first hot air pressure is sent to the main controller 2; the cold area monitor 6 is used to collect the first cold air pressure of the air flow in the cold area, and send the first cold air The main controller 2 is also used to judge whether the air volume of the cabinet is balanced according to the first ratio of the first hot air pressure and the first cold air pressure; If it is determined that the air volume of the cabinet is not balanced, a correction signal is sent to the air supply controller 3; the air supply controller 3 is further configured to adjust the rotational 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 wind pressure of the air flow, wherein the acquisition can be performed at one point. Acquisition and can be multi-point acquisition.

Understandably, the cold zone monitor 6 is installed in the cold zone inside the cabinet, and the cold zone monitor 6 can perform signal acquisition on the temperature of the cold zone and the wind pressure of the air flow, wherein the acquisition can be performed at one point. Acquisition and can be multi-point acquisition.

In this embodiment, considering the internal environment in the cabinet, the hot area monitor 5 is used to monitor the hot air pressure in the hot area, and the cold area monitor 6 is used to monitor the cold air pressure in the cold area. 5. The ratio of the first hot air pressure fed back and the first cold air pressure fed back by the cold zone monitor 6 determines whether the air volume of the cabinet is balanced. If the judgment result is that the air volume of the cabinet is not balanced, then adjust the air conditioner according to the correction signal. As for the rotational speed of the blower 4, the internal environment in the cabinet is considered in this embodiment, so that the hot and cold air flow in the cabinet is more coordinated and smooth.

In one 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 also used to determine whether the air volume demand of the cabinet load exceeds the heat exchange of the cabinet air conditioner. Maximum capacity. If the air volume demand of the cabinet load exceeds the maximum heat exchange capacity of the air conditioner, it is determined whether the first hot air pressure exceeds the first preset threshold. If the first hot air pressure exceeds the first preset threshold, then A first indication signal is sent to the pressure relief fan 7; the pressure relief fan 7 is used for emergency discharge of the hot air in the hot zone to the outside of the cabinet according to the first indication signal.

Understandably, the first preset threshold refers to the preset maximum wind pressure value of the hot zone; if the air volume demand of the cabinet load exceeds the maximum heat exchange capacity of the air conditioner, the hot air pressure in the hot zone continues to rise, It is judged whether the first hot air pressure exceeds the first preset threshold, and if the first hot air pressure exceeds the first preset threshold, the hot air inside the cabinet is emergency discharged to the outside of the cabinet.

In this embodiment, it can be determined whether the air volume of the cabinet reaches a balanced state by judging whether the air volume 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, the hot zone The hot air pressure of the cabinet continues to rise. At this time, it is judged whether the first hot air pressure exceeds the first preset threshold. If the first hot air pressure exceeds the first preset threshold, the hot air inside the cabinet is urgently discharged to the outside of the cabinet. So that the hot air in the cabinet can be quickly exhausted from the outside of the cabinet, so that the hot and cold air flow in the cabinet is more coordinated and smooth.

In one embodiment, as shown in FIG. 6 , the cabinet air volume control system of the present invention further includes a damper 8 and an ambient temperature collector 9; the ambient temperature collector 9 is used to collect the ambient temperature outside the cabinet. , and send the ambient temperature to the main controller 2; the main controller 2 is also used to determine whether the temperature of the cold zone is greater than the ambient temperature, if the temperature of the cold zone is greater than the ambient temperature 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 damper 8 ; The air valve 8 is used to introduce the air outside the cabinet into the cabinet according to the second indication signal.

Understandably, the ambient temperature collector 9 is installed outside the cabinet, the ambient temperature collector 9 collects the ambient temperature outside the cabinet, and sends the collected ambient temperature to the main controller 2 .

Understandably, the second preset threshold refers to the preset maximum wind pressure value of the cold zone; Insufficient supply, if the temperature of the cold zone is greater than the ambient temperature, and the first cold air pressure exceeds the second preset threshold, a second indication signal is sent to the damper 8 to introduce the air outside the cabinet into the cabinet Inside as a supplement to the air volume.

Optionally, after the pressure relief fan 7 is turned on, it is judged whether the temperature of the cold zone is greater than the ambient temperature, if the temperature of the cold zone is greater than the ambient temperature, and the first cold air pressure exceeds the second preset temperature. When the threshold is set, a second indication signal is sent to the air valve 8, and the air outside the cabinet is introduced into the cabinet as a supplement to the air volume.

In this embodiment, the ambient temperature outside the cabinet is collected by the ambient temperature collector 9, and then the temperature in the cold area is compared with the ambient temperature, and at the same time, it is determined whether the first cold air pressure exceeds the second preset threshold, if the first cold air pressure If the second preset threshold is exceeded, the air outside the cabinet is introduced into the cabinet as a supplement to the air volume, so that the air outside the cabinet is quickly supplemented into the inside of the cabinet, making the hot and cold air flow in the cabinet more coordinated and smooth.

In one embodiment, the cabinet air volume control system of the present invention further includes a fault warning device; the main controller 2 is further configured to open the pressure relief fan 7 and the air valve 8 when the opening time of the pressure relief fan 7 and the air valve 8 exceeds the opening of the air valve. After the duration, calculate the second ratio of the second hot air pressure sent by the hot zone monitor 5 and the second cold air pressure sent by the cold zone monitor 6, and then judge whether the cabinet air volume is based on the second ratio. If the air volume of the cabinet is not balanced, a warning signal is sent to the fault warning device; the fault warning device is used to display a fault warning mode according to the warning signal.

Understandably, the opening time of the air valve refers to a preset time length, for example, the opening time of the air valve is 30 minutes, 1 hour, 2 hours, etc., which is not limited in the present invention; when the pressure relief fan 7 and the air valve 8 start After the opening time of the air valve is reached, the main controller 2 will again judge whether the air volume of the cabinet has reached a balance according to the second ratio between the second cold air pressure and the second hot air pressure collected in the cold zone and the hot zone. The current state is maintained, and if the air volume of the cabinet is not balanced, the maximum exhaust air of the pressure relief fan 7 and the maximum air supply of the air valve 8 are maintained, and a fault alarm mode is displayed at the same time.

In this embodiment, it is determined whether the air volume of the cabinet is balanced by calculating the 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 . If there is no balance, an alarm signal is sent to display the fault alarm mode to remind the user that the air volume in the cabinet is too high.

In one embodiment, as shown in FIG. 7 , the cabinet is deployed with the cabinet air volume control system, the control method of the cabinet air volume control system is applied to the cabinet air volume control system, and the control of the cabinet air volume control system The method 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 rotational 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 the load fan of the load device in real time and transmits the air volume data of the load fan to the main controller 2; Add up 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 then sends the total air volume demand signal to the air supply controller The air supply controller 3 calculates the total air volume demand according to the air volume calculation formula, obtains the rotational speed of the load fan, sends the total air volume demand signal to the air supply controller 3 according to the rotational speed of the load fan, and transmits the rotational speed control signal Adjust the speed of the air conditioner blower 4, and the air conditioner blower 4.

In one embodiment, as shown in FIG. 8 , the hot zone and the cold zone refer to that the interior space of the cabinet is divided into a cold air zone and a hot air zone, and the cabinet air volume control system further includes a hot zone monitor 5 and a cold zone monitor. device 6, the control method further includes the following steps:

S50: the hot zone monitor 5 collects the first hot air pressure of the air flow in the hot zone, and sends the first hot air pressure to the main controller 2;

S60: The cold area monitor 6 collects the first cold air pressure of the air flow in the cold area, and sends the first cold air pressure to the main controller 2;

S70: the main controller 2 determines whether the air volume of the cabinet is balanced according to the first ratio of the first hot air pressure and 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, send a correction signal to the air supply controller 3;

S90: The air supply controller 3 adjusts the rotational speed of the air-conditioning blower 4 according to the correction signal.

Understandably, when the air-conditioning air supply reaches the opening time of the air-conditioning blower, 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 hot air pressure of the air flow in the cold zone. A cold air pressure, and the first hot air pressure and the first cold air pressure are sent to the main controller 2, wherein the on-time duration of the air-conditioning blower refers to the preset time when the air-conditioning is on, and the air-conditioning blower is turned on The duration can be 30 minutes, 1 hour, 2 hours, etc., which is not specifically limited in the present invention.

The main controller 2 determines whether the air volume of the cabinet is balanced by calculating the first ratio of the first hot air pressure and the first cold air pressure, and then judging whether the first ratio is within a preset ratio range, wherein, The preset ratio range refers to the preset ratio range. For example, the preset ratio range can be 0.8 to 1.2, and the preset ratio range is the deviation plus or minus 20%, that is, if the first ratio is within the preset ratio If the ratio is within the range, it means that the air volume of the cabinet has reached a balance, then the main controller 2 does not need to send a correction signal to the air supply controller 3, and the air-conditioning blower 4 maintains the original speed; if the first ratio is not Within the preset ratio range, indicating that the air volume of the cabinet is not balanced, the correction data is calculated according to the deviation value and deviation direction of the first ratio, and a correction signal is sent according to the correction data, wherein the first ratio greater than 1.0 is a positive deviation, indicating The first hot air pressure is large, the air supply volume is not enough, and the first ratio is less than 1, which is a reverse deviation, indicating that the first cold air pressure is large, and the air supply volume is excessive. The deviation of the first ratio is the first ratio and the preset ratio range. If the first ratio is 0.6 and the preset ratio range is 0.8 to 1.2, then the deviation of the first ratio is 0.2, and the first ratio is less than 1.0, indicating that the first cold air pressure is large , the air supply volume is excessive, then it is necessary to increase the air volume of the first hot air pressure or reduce the air supply volume of the first cold air pressure, and it will be necessary to increase the air volume of the first hot air pressure or reduce the first cold air The correction signal of the compressed air volume is sent to the air supply controller 3, and the air supply controller 3 adjusts the rotational speed of the air-conditioning 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 determines 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, determine whether the first hot air pressure exceeds a first preset threshold;

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: The pressure relief fan 7 emergency discharges the hot air in the hot zone 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 may be 3 times; if the cycle times of the steps S40 to S70 exceed Preset the number of cycles, by judging whether the air volume of the cabinet is balanced to determine whether the air volume demand of the cabinet load exceeds the maximum heat exchange capacity of the cabinet air conditioner. If the air volume of the cabinet is still not balanced, it means that the air volume demand of the cabinet load in the cabinet exceeds that of the air conditioner. the maximum heat transfer capacity.

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, starts the pressure relief fan 7, and discharges the hot air accumulated in the hot zone to the outside of the cabinet in an emergency .

In one embodiment, as shown in FIG. 10 , the cabinet air volume control system further includes a damper 8 and an ambient temperature collector 9, and the control method further includes the following steps:

S140: the ambient temperature collector 9 collects the ambient temperature outside the cabinet, and sends the ambient temperature to the main controller 2;

S150: the main controller 2 determines whether the temperature of the cold zone is greater than the ambient temperature;

S160: If the temperature of the cold zone is greater than the ambient temperature, the main controller 2 determines whether the first cold air pressure exceeds a second preset threshold;

S170: if the first cold air pressure exceeds a second preset threshold, the main controller 2 sends a second indication signal to the damper 8;

S180: The air valve 8 introduces the 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 determines whether the temperature of the cold zone is greater than the ambient temperature, if the temperature of the cold zone is greater than the ambient temperature, and the first cold air pressure exceeds the second When the preset threshold is set, the air valve 8 is opened to introduce external fresh air, and the air outside the cabinet is introduced into the cabinet to increase the air supply volume.

In an embodiment, as shown in FIG. 11 , the cabinet air volume control system further includes a fault warning device, and the control method further includes the following steps:

S190: After the opening time of the pressure relief fan 7 and the damper 8 exceeds the opening time of the damper, the main controller 2 calculates the second hot air pressure sent by the hot zone monitor 5 and the cold zone the second ratio of the second cold air pressure sent by the monitor 6;

S200: The main controller determines whether the air volume of the cabinet is balanced 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 warning device displays a fault warning mode according to the warning signal.

Understandably, after the opening time of the pressure relief fan 7 and the damper 8 exceeds the opening time of the damper, the main controller 2 calculates the difference between the second hot air pressure sent by the hot zone monitor 5 and the The second ratio of the second cold air pressure sent by the cold zone monitor 6, wherein the opening time of the air valve refers to the preset opening time of the air valve, and the opening time of the air valve can be 30 minutes, 1 hour, 2 hours Wait.

Then according to the second ratio, it is judged whether the air volume of the cabinet is balanced. If the air volume of the cabinet is balanced, the existing state is maintained. If the air volume of the cabinet is not balanced, the maximum exhaust air of the pressure relief fan 7 and the air valve 8 are maintained. The maximum air supply is displayed, and the fault alarm mode is displayed at the same time.

It should be understood that the size of the sequence numbers of the steps in the above-mentioned embodiments does not mean the execution sequence, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the present invention.

In one embodiment, a cabinet air volume control device is provided, and the cabinet air volume control device corresponds one-to-one with the cabinet air volume control method in the above embodiment. The cabinet air volume control device includes an air volume data detection module, a calculation module, a transmission module and an adjustment module. The detailed description of each functional module is as follows:

an air volume data detection module, wherein 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;

a calculation module, wherein the main controller calculates the total air volume demand according to the air volume data of the load fan;

a sending module, wherein the main controller sends the total air volume demand signal to the air supply controller according to the total air volume demand;

An adjustment module, wherein the air supply controller receives the total air volume demand signal sent by the main controller, and adjusts the rotational speed of the air conditioner blower according to the total air volume demand signal.

For the specific limitation of the cabinet air volume control device, reference may be made to the limitation on the cabinet air volume control method above, which will not be repeated here. All or part of the modules in the above-mentioned cabinet air volume control device can be implemented by software, hardware and combinations thereof. The above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

In one embodiment, a computer device is provided, as shown in Figure 12, comprising a memory, a processor and a computer program stored in the memory and running on the processor, the processor implements 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 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 rotational speed of the air conditioner blower according to the total air volume demand signal.

In one embodiment, a computer-readable storage medium is provided on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

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 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 rotational speed of the air conditioner blower according to the total air volume demand signal.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage In the medium, when the computer program is executed, it may include the processes of the above-mentioned method embodiments. Wherein, any reference to memory, storage, database or other medium used in the various embodiments provided in this application may include non-volatile and/or volatile memory. Nonvolatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Road (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned functions can be allocated to different functional units, Module completion, that is, dividing the internal structure of the device into different functional units or modules to complete all or part of the functions described above.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is still possible to implement the foregoing implementations. The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the within the protection 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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