PLC-controlled container data center fresh air exhaust system

Abstract

The utility model discloses a PLC control container data center fresh air exhaust system which comprises a PLC, a fire control host, a moving ring system, a fresh air fan, a first exhaust fan, a second exhaust fan, an air conditioner fan control panel and an after-disaster exhaust manual switch. The PLC controller is provided with a power supply interface, a fire control interface, an after-disaster air exhaust control interface, a dynamic environment control interface, a fresh air control interface, a first air exhaust control interface, a second air exhaust control interface and an air conditioner fan control interface. A fire control host, a moving ring system, a fresh air fan, a first exhaust fan, a second exhaust fan, an air conditioner fan control panel and an after-disaster air exhaust manual switch are comprehensively integrated on the PLC, barriers among the systems are broken through, networking communication and control are very simple, and cost optimization control can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of container data centers, and in particular to a new exhaust system for container data centers controlled by a PLC. Background Art

[0002] Container data centers integrate all essential components, including computer hardware, power supplies, and cooling systems, into a standard container, achieving a high degree of integration and portability. However, containers are enclosed spaces. Within the closed environment of the computer room, harmful gases emitted by equipment (such as volatile organic compounds produced by electronic components) can affect personnel health and equipment life if not promptly removed. Existing systems have separate fresh air and exhaust systems, making single control inconvenient.

[0003] In order to solve the above-mentioned technical deficiencies of the existing technology, it is necessary to design a new exhaust system for PLC-controlled container data centers. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a new exhaust system for a container data center controlled by a PLC.

[0005] A PLC-controlled fresh air exhaust system for a container data center comprises a PLC controller, a fire control host, a dynamic environment system, a fresh air fan, a first exhaust fan, a second exhaust fan, an air-conditioning fan control panel and a post-disaster exhaust manual switch; the PLC controller is provided with a power supply interface, a fire control interface, a post-disaster exhaust control interface, a dynamic environment control interface, a fresh air control interface, a first exhaust control interface, a second exhaust control interface and an air-conditioning fan control interface; the fire control interface and the post-disaster exhaust control interface are both input interfaces, which are respectively connected to the fire control host and the post-disaster exhaust manual switch; the fresh air control interface, the first exhaust control interface, the second exhaust control interface and the air-conditioning fan control interface are all output interfaces, which are respectively connected to the fresh air fan, the first exhaust fan, the second exhaust fan and the air-conditioning fan control panel; the dynamic environment control interface is a communication interface, which establishes a communication connection with the dynamic environment system.

[0006] Furthermore, the power supply interface includes positive and negative pins, the fire control interface includes GND0 and X0 pins, the post-disaster exhaust control interface is set on the X1 pin, the dynamic environment control interface includes A and B pins, the fresh air control interface includes GND1 and Y0 pins, the first exhaust control interface includes GND2 and Y1 pins, the second exhaust control interface includes GND3 and Y2 pins, and the air conditioning fan control interface includes GND4 and Y3 pins.

[0007] Furthermore, the positive and negative pins of the power interface are connected to the positive and negative poles of 24V DC power, 24V DC power is connected between the GND1 pin and the fresh air fan, an intermediate relay is connected between the Y0 pin and the fresh air fan, 24V DC power is connected between the GND2 pin and the first row of fans, an intermediate relay is connected between the Y1 pin and the first row of fans, 24V DC power is connected between the GND3 pin and the second row of fans, and an intermediate relay is connected between the Y2 pin and the second row of fans.

[0008] Furthermore, the communication protocol adopted by the dynamic environment control interface is modbus rtu.

[0009] Furthermore, the input signals of the GND0 and X0 pins are passive dry contact signals, and the output signals of the GND4 and Y3 pins are dry contact signals.

[0010] Furthermore, the PLC controller includes an automatic mode and a manual mode.

[0011] Beneficial effects: The utility model overcomes the single control and comprehensively integrates the fire control host, dynamic environment system, fresh air fan, first exhaust fan, second exhaust fan, air-conditioning fan control panel and post-disaster exhaust manual switch on the PLC controller for integrated control, breaking through the barriers between systems, and the networking communication and control are very simple, which can achieve optimized cost control. By precisely controlling the air intake and exhaust volumes, the positive pressure state inside the computer room is maintained, thereby protecting sensitive electronic equipment from external pollution, ensuring efficient, safe and sustainable operation of the container data center, maintaining the stability of the container data center equipment, extending its service life, ensuring data security and improving energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the connections of the various interfaces of the PLC controller of the utility model;

[0013] Figure 2 This is the principle diagram of the new exhaust system of container data center controlled by PLC in this utility model;

[0014] In the picture:

[0015] 1. PLC controller; 2. Fire control host; 3. Dynamic environment system; 4. Fresh air fan; 5. First exhaust fan; 6. Second exhaust fan; 7. Air conditioning fan control panel. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Please refer to Figure 1-Figure 2 This embodiment proposes a PLC-controlled fresh air exhaust system for a container data center, including a PLC controller 1, a fire control host 2, a dynamic environment system 3, a fresh air fan 4, a first exhaust fan 5, a second exhaust fan 6, an air conditioning fan control board 7, and a post-disaster exhaust manual switch. The PLC controller 1 includes an automatic mode and a manual mode, and the model used is FX5U. The PLC controller 1 is provided with a power interface, a fire control interface, a post-disaster exhaust control interface, a dynamic environment control interface, a fresh air control interface, a first exhaust control interface, a second exhaust control interface, and an air conditioning fan control interface. The fire control interface and the post-disaster exhaust control interface are both input interfaces, connected to the fire control host 2 and the post-disaster exhaust manual switch respectively. The fresh air control interface, the first exhaust control interface, the second exhaust control interface, and the air conditioning fan control interface are all output interfaces, connected to the fresh air fan 4, the first exhaust fan 5, the second exhaust fan 6, and the air conditioning fan control board 7 respectively. The dynamic environment control interface is a communication interface, which establishes a communication connection with the dynamic environment system 3, and the communication protocol used by the dynamic environment control interface is Modbus RTU.

[0018] The power supply interface includes positive and negative pins, and the positive and negative pins of the power supply interface are connected to the positive and negative poles of 24V DC power. The fire control interface includes GND0 and X0 pins. The input signals of GND0 and X0 pins are passive dry contact signals. The post-disaster exhaust control interface is set on the X1 pin. The dynamic ring control interface includes A and B pins. The fresh air control interface includes GND1 and Y0 pins. 24V DC power is connected between the GND1 pin and the fresh air fan 4, and an intermediate relay is connected between the Y0 pin and the fresh air fan 4. The first exhaust control interface includes GND2 and Y1 pins. 24V DC power is connected between the GND2 pin and the first exhaust fan 5, and an intermediate relay is connected between the Y1 pin and the first exhaust fan 5. The second exhaust control interface includes GND3 and Y2 pins. 24V DC power is connected between the GND3 pin and the second exhaust fan 6, and an intermediate relay is connected between the Y2 pin and the second exhaust fan 6. The air conditioning fan control interface includes GND4 and Y3 pins. The output signals of GND4 and Y3 pins are dry contact signals.

[0019] The present invention overcomes the single control problem and integrates the fire control host 2, dynamic environment system 3, fresh air fan 4, first exhaust fan 5, second exhaust fan 6, air conditioning fan control panel 7 and post-disaster exhaust manual switch on the PLC controller 1 for integrated control, breaking down the barriers between the systems. The networking communication and control are very simple, which can achieve optimized cost control. By introducing fresh outdoor air, it helps to improve indoor air quality and reduce pollutant concentrations. In order to prevent dust and other pollutants from entering, the computer room usually maintains a certain positive pressure environment. By accurately controlling the air intake and exhaust volumes, the positive pressure state inside the computer room is maintained, thereby protecting sensitive electronic equipment from external pollution, ensuring the efficient, safe and sustainable operation of the container data center, maintaining the stability of the container data center equipment, extending its service life, ensuring data security and improving energy efficiency.

[0020] The control logic of the PLC of this utility model is as follows:

[0021] The power equipment and environmental conditions of the container data center are comprehensively monitored and managed through the dynamic environment system 3. The PLC controller 1 controls the operation of the fresh air fan 4, the first exhaust fan 5, the second exhaust fan 6 and the air conditioning fan control panel 7 according to the equipment and environmental parameters provided by the dynamic environment system 3 and the alarm information provided by the fire control host 2. When the system is in automatic mode: under normal ventilation, the PLC controller 1 outputs a control signal to control the operation of the fresh air fan 4, the first exhaust fan 5, and the second exhaust fan 6 according to the equipment and environmental parameters (temperature, humidity, power, equipment status, etc.) provided by the dynamic environment system 3 and the starting threshold set by the system (first gear: only one fan is turned on at this time, which is normal). Ventilation air volume, second gear: both fans are turned on, this is the post-disaster exhaust air volume). When a fire occurs, the fire control host 2 sends an alarm signal, and the PLC controller 1 immediately sends a control command. The fresh air fan 4, the first exhaust fan 5, the second exhaust fan 6 and the air conditioning fan control board 7 stop working to prevent the fire from spreading. After the default delay of 15 minutes (which can be modified according to needs), the first exhaust fan 5 and the second exhaust fan 6 are both started (second gear) as post-disaster exhaust. After the alarm is restored, the PLC controller 1 sends a control command to start the fresh air fan 4, and the first exhaust fan 5 and the second exhaust fan 6 are automatically reduced to first gear to start (only one of the fans is turned on), and the air conditioning fan control board 7 is started.

[0022] When the system is in manual mode: Post-disaster exhaust is delayed for 15 minutes in automatic mode. The first and second exhaust fans 5 and 6 can be manually started in second gear using the post-disaster exhaust manual switch, eliminating the need to wait for automatic exhaust after 15 minutes. Manual mode is suitable for on-site operation based on actual conditions.

[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new PLC-controlled exhaust system for container data centers, characterized by: The system comprises a PLC controller (1), a fire control host (2), a dynamic environment system (3), a fresh air fan (4), a first exhaust fan (5), a second exhaust fan (6), an air conditioning fan control panel (7), and a post-disaster exhaust manual switch; the PLC controller (1) is provided with a power supply interface, a fire control interface, a post-disaster exhaust control interface, a dynamic environment control interface, a fresh air control interface, a first exhaust control interface, a second exhaust control interface, and an air conditioning fan control interface; The fire control interface and the post-disaster exhaust control interface are both input interfaces, connected to the fire control host (2) and the post-disaster exhaust manual switch respectively; the fresh air control interface, the first exhaust control interface, the second exhaust control interface and the air conditioning fan control interface are all output interfaces, connected to the fresh air fan (4), the first exhaust fan (5), the second exhaust fan (6) and the air conditioning fan control board (7) respectively; the dynamic environment control interface is a communication interface, which establishes a communication connection with the dynamic environment system (3).

2. The exhaust system according to claim 1, characterized in that: The power supply interface includes positive and negative pins, the fire control interface includes GND0 and X0 pins, the post-disaster exhaust control interface is set on the X1 pin, the dynamic environment control interface includes A and B pins, the fresh air control interface includes GND1 and Y0 pins, the first exhaust control interface includes GND2 and Y1 pins, the second exhaust control interface includes GND3 and Y2 pins, and the air conditioning fan control interface includes GND4 and Y3 pins.

3. The exhaust system according to claim 2, characterized in that: The positive and negative pins of the power interface are connected to the positive and negative poles of 24V DC power, 24V DC power is connected between the GND1 pin and the fresh air fan (4), an intermediate relay is connected between the Y0 pin and the fresh air fan (4), 24V DC power is connected between the GND2 pin and the first exhaust fan (5), an intermediate relay is connected between the Y1 pin and the first exhaust fan (5), 24V DC power is connected between the GND3 pin and the second exhaust fan (6), and an intermediate relay is connected between the Y2 pin and the second exhaust fan (6).

4. The exhaust system according to claim 1, characterized in that: The communication protocol used by the dynamic environment control interface is modbus rtu.

5. The exhaust system according to claim 2, characterized in that: The input signals of the GND0 and X0 pins are passive dry contact signals, and the output signals of the GND4 and Y3 pins are dry contact signals.

6. The exhaust system according to claim 1, characterized in that: The PLC controller (1) includes an automatic mode and a manual mode.

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