A computer room air conditioner with a fire extinguishing system

Abstract

The utility model discloses a computer room air conditioner with a fire extinguishing system, which relates to the technical field of computer room air conditioners, including an air conditioner blower, an air conditioner controller, a fire extinguishing alarm module and a host computer; the fire extinguishing alarm module is connected to the input end of the air conditioner controller; the air conditioner blower is connected to the first output end of the air conditioner controller, and the air conditioner blower is controlled by the air conditioner controller; the host computer is connected to the second output end of the air conditioner controller, and the host computer is used to display alarm information; the fire extinguishing alarm module includes a fire extinguishing device, a temperature sensor and a fire extinguishing alarm control unit; the temperature sensor is used to monitor the temperature of the computer room air conditioner, and the fire extinguishing device is connected to the output end of the fire extinguishing alarm control unit; the fire extinguishing device is controlled by the fire extinguishing alarm control unit and is used for self-spraying fire extinguishing; the temperature sensor transmits a sensing signal to the fire extinguishing alarm control unit; when the sensing signal reaches a set value, the fire extinguishing alarm control unit controls the fire extinguishing device to spray and extinguish the fire.

Description

Technical Field

[0001] The utility model relates to the technical field of computer room air conditioners, in particular to a computer room air conditioner with a fire extinguishing system. Technical Background

[0002] With the development of science and technology and the advent of the information age, computers, servers and other electronic devices have become an indispensable part of modern life, and the use of these devices is inseparable from the existence of computer rooms; the security of computer rooms has become an important part that cannot be ignored.

[0003] The computer room is one of the core components of the equipment. The equipment in the computer room needs to operate all year round. The operation of the equipment in the computer room consumes a lot of electricity, which also leads to a rapid increase in the temperature of the computer room. Moreover, since most equipment is relatively expensive, people pay more and more attention to the safety of using large computer rooms. Once a fire occurs in an individual cabinet or computer room, it will cause great economic losses if it is not extinguished in time.

[0004] In order to ensure the normal operation of the equipment, the temperature in the computer room needs to be kept within an appropriate range; and the air conditioner can provide efficient cooling and cooling functions for the computer room, ensuring that the temperature and humidity in the computer room are always in a stable state.

[0005] In the prior art, computer room air conditioners may catch fire when working due to equipment short circuit, excessive dust, cable overload, high temperature, etc. However, the fire extinguishing operation of computer room air conditioners is usually done manually, which is difficult to stop the fire in the first place before it occurs. Therefore, once a fire accident occurs, an extremely sensitive alarm system and a computer room air conditioner with a more adaptable fire extinguishing system are required. Utility Model Content

[0006] In view of the above shortcomings of the prior art, the purpose of the present utility model is to provide a computer room air conditioner with a fire extinguishing system to solve the problems existing in the above prior art.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A computer room air conditioner with a fire extinguishing system, comprising an air conditioner blower, an air conditioner controller, a fire extinguishing alarm module and a host computer;

[0009] The fire extinguishing alarm module is connected to the input end of the air conditioning controller;

[0010] The air-conditioning blower is connected to the first output terminal of the air-conditioning controller, and the air-conditioning blower is controlled by the air-conditioning controller;

[0011] The host computer is connected to the second output terminal of the air-conditioning controller, and the host computer is used to display the alarm information;

[0012] The fire extinguishing alarm module includes a fire extinguishing device, a temperature sensor and a fire extinguishing alarm control unit; the input end of the fire extinguishing alarm control unit is connected to the temperature sensor, and the temperature sensor is used to monitor the temperature of the air conditioner in the computer room; the fire extinguishing device is connected to the output end of the fire extinguishing alarm control unit, and the fire extinguishing device is controlled by the fire extinguishing alarm control unit for self-spraying fire extinguishing;

[0013] The temperature sensor transmits the sensing signal to the fire extinguishing alarm control unit. When the sensing signal reaches the set value, the fire extinguishing alarm control unit controls the fire extinguishing device to spray and extinguish the fire.

[0014] The fire extinguishing alarm control unit transmits the sensing signal to the air conditioning controller, and the air conditioning controller controls the switch of the air conditioning blower. When the air conditioning blower stops working, the air conditioning equipment in the computer room stops running;

[0015] The air conditioner controller transmits the alarm signal to the host computer, and the host computer displays the alarm information on the air conditioner display screen.

[0016] The beneficial technical effects of the above technical scheme are as follows: a computer room air conditioner with a fire extinguishing system of the utility model monitors the temperature of the computer room air conditioner through a temperature sensor, and the temperature sensor transmits a signal to the fire extinguishing alarm control unit to determine whether a fire occurs, and controls the fire extinguishing device through the fire extinguishing alarm control unit to achieve a fire extinguishing effect. Moreover, the fire extinguishing signal is transmitted to the air conditioning controller through the temperature sensor, and the air conditioning controller controls the air conditioning blower to stop working, ensuring that the computer room air conditioning equipment stops running. At the same time, the air conditioning controller transmits the alarm signal to the host computer, and the host computer displays the alarm information on the display screen to achieve automatic fire extinguishing, power off, and alarm effects, so as to ensure the sensitivity of the computer room air conditioning alarm system and have stronger adaptability.

[0017] Preferably, the model of the temperature sensor is PT100-CWF1.

[0018] Beneficial technical effects of the above technical solution: The temperature sensor adopts PT100-CWF1, which has the advantages of moisture resistance, good insulation, high reliability, small time constant and sensitive response, so as to ensure the stability, sensitivity and reliability of the temperature sensor.

[0019] Preferably, the model of the air-conditioning controller is PLC-HAC01M3.

[0020] The beneficial technical effects of the above technical solution are: the controller adopts PLC-HAC01M3, which has the advantages of high reliability and strong anti-interference ability. PLC reliability is the key performance of electrical control equipment. PLC adopts modern large-scale integrated circuit technology and strict production process manufacturing. The internal circuit adopts advanced anti-interference technology and has high reliability, which further ensures the stability and reliability of the air-conditioning controller.

[0021] Preferably, the fire extinguishing device comprises a fire extinguishing tank 1, a fixing seat 2 and a nozzle 3;

[0022] The fixing seat 2 is arranged at the bottom of the fire extinguishing tank 1, and a plurality of fixing holes 4 are arranged on both sides of the fixing seat 2;

[0023] The nozzles 3 are arranged on one side of the wide side of the fire extinguishing tank 1, and the nozzles 3 are evenly distributed in a petal shape.

[0024] The beneficial technical effects of the above technical scheme are as follows: by arranging a fire extinguishing tank, a fixing seat and a nozzle, the fire extinguishing tank is used to store fire extinguishing aerosol to ensure the fire extinguishing effect, the fixing seat is used to fix the fire extinguishing device to ensure its stability, and the nozzle is used to spray the fire extinguishing aerosol to ensure the fire extinguishing efficiency and reliability; by arranging a fixing seat at the bottom of the fire extinguishing tank, the fire extinguishing tank is fixed by fixing holes on both sides of the fixing seat to ensure the stability of the fire extinguishing device; the aerosol is sprayed from the fire extinguishing tank through the nozzle to ensure the fire extinguishing effect, and the nozzles are evenly distributed in a petal shape to ensure that the fire is extinguished evenly and in place, further ensuring the fire extinguishing efficiency and reliability of the computer room air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the drawings required for use in the specific implementation or the prior art description will be briefly introduced below. Obviously, the drawings described below are some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic diagram of a functional module of a computer room air conditioner with a fire extinguishing system provided in Example 1 of the utility model;

[0027] Figure 2 A schematic diagram of the assembly of a computer room air conditioner with a fire extinguishing system provided in Example 1 of the utility model;

[0028] Figure 3 A schematic diagram of the structure of the fire extinguishing device provided by the utility model;

[0029] Figure 4 A program block diagram of a computer room air conditioner with a fire extinguishing system provided in Example 2 of the utility model;

[0030] Figure 5 A schematic diagram of the electrical principle of a computer room air conditioner with a fire extinguishing system provided in Example 3 of the utility model;

[0031] Description of reference numerals;

[0032] 1- Fire extinguisher tank; 2- Fixed seat; 3- Nozzle; 4- Fixed hole. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments.

[0034] Example 1

[0035] like Figures 1 to 3 As shown, a computer room air conditioner with a fire extinguishing system includes an air conditioner blower, an air conditioner controller, a fire extinguishing alarm module and a host computer;

[0036] The fire extinguishing alarm module is connected to the input end of the air conditioning controller;

[0037] The air-conditioning blower is connected to the first output terminal of the air-conditioning controller, and the air-conditioning blower is controlled by the air-conditioning controller;

[0038] The host computer is connected to the second output terminal of the air conditioner controller, and the host computer is used to display the alarm information;

[0039] The fire extinguishing alarm module includes a fire extinguishing device, a temperature sensor and a fire extinguishing alarm control unit; the input end of the fire extinguishing alarm control unit is connected to the temperature sensor; the temperature sensor is used to monitor the temperature of the air conditioner in the computer room, and the fire extinguishing device is connected to the output end of the fire extinguishing alarm control unit; the fire extinguishing device is controlled by the fire extinguishing alarm control unit and is used for self-spraying fire extinguishing;

[0040] The temperature sensor transmits the sensing signal to the fire extinguishing alarm control unit. When the sensing signal reaches the set value, the fire extinguishing alarm control unit controls the fire extinguishing device to spray and extinguish the fire.

[0041] The fire alarm control unit transmits the sensing signal to the air conditioning controller, which controls the switch of the air conditioning blower. When the air conditioning blower stops working, the air conditioning equipment in the computer room stops running.

[0042] The air conditioning controller transmits the alarm signal to the host computer, and the host computer displays the alarm information on the air conditioning display screen; the air conditioning temperature in the computer room is monitored by the temperature sensor, and the temperature sensor transmits the signal to the fire extinguishing alarm control unit to determine whether a fire has occurred, and the fire extinguishing device is controlled by the fire extinguishing alarm control unit to achieve the fire extinguishing effect. In addition, the fire extinguishing signal is transmitted to the air conditioning controller through the temperature sensor, and the air conditioning controller controls the air conditioning blower to stop working, ensuring that the air conditioning equipment in the computer room stops running; at the same time, the air conditioning controller transmits the alarm signal to the host computer, and the host computer displays the alarm information on the display screen to achieve automatic fire extinguishing, power off, and alarm effects, so as to ensure the sensitivity of the computer room air conditioning alarm system and have stronger adaptability.

[0043] In this embodiment, the model of the temperature sensor is PT100-CWF1 (named: digital end PT100-SDF1), which has the advantages of moisture resistance, good insulation, high reliability, small time constant, and sensitive response to ensure the stability, sensitivity and reliability of the temperature sensor.

[0044] In this embodiment, the fire extinguishing alarm control unit adopts Siemens PLC, which has the advantages of high reliability and strong anti-interference ability, further ensuring the stability, sensitivity and reliability of the alarm and fire extinguishing module.

[0045] In this embodiment, the air-conditioning controller adopts PLC-SL1309 (named: Digital PLC-SD1309); its advantages are: high reliability and strong anti-interference ability. PLC reliability is the key performance of electrical control equipment. PLC adopts modern large-scale integrated circuit technology and strict production process manufacturing. The internal circuit adopts advanced anti-interference technology and has high reliability, which further ensures the stability and reliability of the air-conditioning controller.

[0046] In this embodiment, the fire extinguishing device includes a fire extinguishing tank 1, a fixing seat 2 and a nozzle 3; the fixing seat 2 is arranged at the bottom of the fire extinguishing tank 1, and a plurality of fixing holes 4 are arranged on both sides of the fixing seat 2; the nozzle 3 is arranged on one side of the wide side of the fire extinguishing tank 1, and the nozzle 3 is evenly distributed in a petal shape. By arranging the fire extinguishing tank, the fixing seat and the nozzle, the fire extinguishing tank is used to store the fire extinguishing aerosol to ensure the fire extinguishing effect, the fixing seat is used to fix the fire extinguishing device to ensure its stability, and the nozzle is used to spray the fire extinguishing aerosol to ensure the fire extinguishing efficiency and reliability; by arranging the fixing seat at the bottom of the fire extinguishing tank, the fire extinguishing tank is fixed by fixing holes on both sides of the fixing seat to ensure the stability of the fire extinguishing device; the aerosol is sprayed from the fire extinguishing tank through the nozzle to ensure the fire extinguishing effect, and the nozzle is evenly distributed in a petal shape to ensure that the fire is extinguished evenly and in place, further ensuring the fire extinguishing efficiency and reliability of the computer room air conditioner.

[0047] In this embodiment, the fire extinguishing tank 1 is filled with aerosol, which further improves the fire extinguishing efficiency of the computer room air conditioner.

[0048] In this embodiment, the temperature sensor, fire extinguishing alarm control unit, fire extinguishing device, air conditioning controller, host computer and air conditioning blower can all be bidirectionally feedback adjusted; automatic or active fire extinguishing, power off and alarm effects can be achieved through feedback adjustment, further ensuring the sensitivity of the computer room air conditioning alarm system and greater adaptability.

[0049] Example 2

[0050] like Figure 3 to Figure 4 As shown, a computer room air conditioner with a fire extinguishing system includes an air conditioner blower, an air conditioner controller, a fire extinguishing alarm module and a host computer;

[0051] The fire extinguishing alarm module is connected to the input terminal of the air conditioning controller;

[0052] The air-conditioning blower is connected to the first output terminal of the air-conditioning controller, and the air-conditioning blower is controlled by the air-conditioning controller;

[0053] The host computer is connected to the second output terminal of the air conditioner controller, and the host computer is used to display the alarm information;

[0054] The fire extinguishing alarm module includes a fire extinguishing device, a temperature sensor and a fire extinguishing alarm control unit; the input end of the fire extinguishing alarm control unit is connected to the temperature sensor; the temperature sensor is used to monitor the temperature of the air conditioner in the computer room, and the fire extinguishing device is connected to the output end of the fire extinguishing alarm control unit; the fire extinguishing device is controlled by the fire extinguishing alarm control unit and is used for self-spraying fire extinguishing;

[0055] The temperature sensor transmits the sensing signal to the fire extinguishing alarm control unit. When the sensing signal reaches the set value, the fire extinguishing alarm control unit controls the fire extinguishing device to spray and extinguish the fire.

[0056] The fire alarm control unit transmits the sensing signal to the air conditioning controller, which controls the switch of the air conditioning blower, stops the air conditioning blower, and stops the air conditioning equipment in the computer room.

[0057] The air conditioning controller transmits the alarm signal to the host computer, and the host computer displays the alarm information on the air conditioning display screen; the air conditioning temperature in the computer room is monitored through the temperature sensor, and the temperature sensor transmits the signal to the fire extinguishing alarm control unit to determine whether a fire has occurred, and the fire extinguishing device is controlled by the fire extinguishing alarm control unit to achieve the fire extinguishing effect; the fire extinguishing signal is transmitted to the air conditioning controller through the temperature sensor, and the air conditioning controller controls the air conditioning blower to stop working, ensuring that the air conditioning equipment in the computer room stops running; at the same time, the air conditioning controller transmits the alarm signal to the host computer, and the host computer displays the alarm information on the display screen to achieve automatic fire extinguishing, power off, and alarm effects, so as to ensure the sensitivity of the computer room air conditioning alarm system and have stronger adaptability.

[0058] In this embodiment, when the temperature sensor monitors the air-conditioning temperature in the computer room and it is higher than 70°C and lower than 100°C, the temperature sensor transmits a pre-alarm signal to the fire extinguishing alarm control unit, the fire extinguishing alarm control unit transmits the pre-alarm signal to the air-conditioning controller, and the air-conditioning controller feeds back the pre-alarm signal to the host computer; the air-conditioning temperature in the computer room is monitored by the temperature sensor, and the temperature sensor transmits a signal to the fire extinguishing alarm control unit to determine whether a fire has occurred.

[0059] Pre-alarm: When the temperature sensor monitors that the air-conditioning temperature in the computer room is greater than 70℃ and less than 100℃, the temperature sensor transmits a signal to the fire alarm control unit, and the fire alarm control unit transmits the pre-alarm signal to the air-conditioning controller. At the same time, the air-conditioning controller transmits the pre-alarm signal to the host computer, and the host computer displays the pre-alarm information of the computer room air-conditioning on the display screen.

[0060] In this embodiment, when the temperature sensor monitors that the temperature of the computer room air conditioner is higher than 100°C, the temperature sensor transmits a fire extinguishing alarm signal to the fire extinguishing alarm control unit, the fire extinguishing alarm control unit transmits the fire extinguishing signal to the air conditioning controller, and the air conditioning controller controls the fire extinguishing tank 1 to spray and extinguish the fire; the air conditioning controller controls the air conditioning blower to stop working; at the same time, the air conditioning controller feeds back the alarm signal to the host computer; the computer room air conditioning temperature is monitored by the temperature sensor, the temperature sensor transmits the signal to the fire extinguishing alarm control unit to determine whether a fire occurs, and the fire extinguishing device is controlled by the fire extinguishing alarm control unit to achieve the fire extinguishing effect, and the fire extinguishing signal is transmitted to the air conditioning controller through the temperature sensor to realize the computer room air conditioning fire extinguishing alarm.

[0061] Fire extinguishing alarm: When the temperature sensor monitors that the air-conditioning temperature in the computer room is greater than or equal to 100℃, the temperature sensor transmits the signal to the fire extinguishing alarm control unit, which controls the fire extinguishing device, and the fire extinguishing tank 1 sprays automatically to extinguish the fire; the fire extinguishing alarm control unit transmits the fire extinguishing alarm signal to the air-conditioning controller, and the air-conditioning controller controls the air-conditioning blower to stop working, ensuring that the air-conditioning equipment in the computer room stops running; at the same time, the air-conditioning controller transmits the fire extinguishing alarm signal to the host computer, and the host computer displays the fire extinguishing alarm information on the air-conditioning display screen to achieve automatic fire extinguishing, power off, and alarm effects, so as to ensure the sensitivity of the computer room air-conditioning fire extinguishing alarm system and have stronger adaptability.

[0062] Example 3

[0063] like Figure 5 As shown, a computer room air conditioner with a fire extinguishing system includes an air conditioner blower, an air conditioner controller, a fire extinguishing alarm module and a host computer;

[0064] The fire extinguishing alarm module is connected to the input terminal of the air conditioning controller;

[0065] The air-conditioning blower is connected to the first output terminal of the air-conditioning controller, and the air-conditioning blower is controlled by the air-conditioning controller;

[0066] The host computer is connected to the second output terminal of the air conditioner controller, and the host computer is used to display the alarm information;

[0067] The fire extinguishing alarm module includes a fire extinguishing device, a temperature sensor and a fire extinguishing alarm control unit; the input end of the fire extinguishing alarm control unit is connected to the temperature sensor; the temperature sensor is used to monitor the air conditioning temperature in the computer room, and the fire extinguishing device is connected to the output end of the fire extinguishing alarm control unit; the fire extinguishing device is controlled by the fire extinguishing alarm control unit and is used for self-spraying fire extinguishing.

[0068] Figure 5This is a schematic diagram of the electrical principle of the computer room air conditioner with a fire extinguishing system. The input ends of the indoor fan and compressor are electrically connected to the three-phase AC power, and the input ends of the condenser and transformer are electrically connected to the 220V voltage; the output end of the transformer is electrically connected to points 5 and 6 of the 4D terminal block of the air conditioner controller.

[0069] Specifically, the air-conditioning blower is electrically connected to point 2 of terminal row 1D of the air-conditioning controller through the KM1 relay; the air-conditioning blower is used to transport air to the indoor fan, and the indoor fan is controlled by the KM1 relay of the air-conditioning blower.

[0070] Specifically, the electric auxiliary heating is electrically connected to point 3 of terminal row 1D of the air-conditioning controller through the KM3 relay; the electric auxiliary heating is controlled by the air-conditioning controller.

[0071] Specifically, the compressor output end is electrically connected to point 4 of terminal row 1D of the air-conditioning controller through the KM2 relay; the compressor output end is controlled by the air-conditioning controller.

[0072] Specifically, the dehumidification solenoid valve is electrically connected to point 5 of terminal row 1D of the air-conditioning controller through the KM4 relay. The dehumidification solenoid valve is controlled by the air-conditioning controller and is used for the air-conditioning dehumidification effect.

[0073] Specifically, the condenser and compressor input terminals are controlled by KM2 relay.

[0074] Specifically, the 220V AC power is converted into 12V AC power by a transformer to supply power to the air conditioner controller.

[0075] Specifically, the fire extinguishing alarm module is electrically connected to point 11 of the 3D terminal block of the air-conditioning controller, and the fire extinguishing alarm module is a normally open switch.

[0076] Specifically, the host computer is electrically connected to the No. 27 and No. 28 points of the 3D terminal block of the air-conditioning controller; and is used to display the fire extinguishing alarm information.

[0077] In this embodiment, when the temperature sensor monitors the air conditioning temperature in the computer room to be greater than 70°C and less than 100°C, the temperature sensor transmits a signal to the fire extinguishing alarm control unit, and the fire extinguishing alarm control unit transmits the pre-alarm signal to the air conditioning controller. At the same time, the air conditioning controller transmits the pre-alarm signal to the host computer, and the host computer displays the pre-alarm information on the display screen.

[0078] In this embodiment, when the temperature sensor monitors that the air conditioning temperature in the computer room is greater than or equal to 100°C, the temperature sensor transmits a signal to the fire extinguishing alarm control unit, the fire extinguishing alarm module switch is closed, and the fire extinguishing alarm control unit controls the fire extinguishing device to achieve the fire extinguishing effect. At the same time, the fire extinguishing alarm control unit transmits the fire extinguishing alarm signal to the air conditioning controller, the air conditioning controller controls the KM1 relay to disconnect, and the air conditioning blower stops working, ensuring that all equipment in the computer room air conditioning stops running. At the same time, the air conditioning controller transmits the fire extinguishing alarm signal to the host computer, and the host computer displays the fire extinguishing alarm information on the display screen to achieve automatic fire extinguishing, power off, and alarm effects, so as to ensure the sensitivity of the computer room air conditioning alarm system and have stronger adaptability.

[0079] Specific usage of this utility model:

[0080] Step 1: Electrically connect the fire extinguishing device to the fire extinguishing alarm control unit;

[0081] Step 2: Electrically connect the fire alarm control unit to the temperature sensor;

[0082] Step 3: Open the door of the air conditioner cabinet in the computer room, place the fire extinguishing device under the air conditioner controller or air conditioner circuit board, and fix the fire extinguishing tank 1 through the fixing hole 4 to ensure the stability of the fire extinguishing device;

[0083] Step 4: Electrically connect the fire alarm control unit to the air conditioning controller; and close the air conditioning cabinet door in the computer room;

[0084] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0085] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention.

[0086] The above are only preferred implementations of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should all be regarded as protection of the utility model.

Claims

1. A computer room air conditioner with a fire extinguishing system, characterized in that: Including air conditioner blower, air conditioner controller, fire extinguishing alarm module and host computer; The fire extinguishing alarm module is connected to the input end of the air conditioning controller; The air-conditioning blower is connected to the first output terminal of the air-conditioning controller, and the air-conditioning blower is controlled by the air-conditioning controller; The host computer is connected to the second output terminal of the air-conditioning controller, and the host computer is used to display the alarm information; The fire extinguishing alarm module includes a fire extinguishing device, a temperature sensor and a fire extinguishing alarm control unit; the input end of the fire extinguishing alarm control unit is connected to the temperature sensor, and the temperature sensor is used to monitor the temperature of the air conditioner in the computer room; the fire extinguishing device is connected to the output end of the fire extinguishing alarm control unit, and the fire extinguishing device is controlled by the fire extinguishing alarm control unit for self-spraying fire extinguishing; The air conditioner controller transmits the alarm signal to the host computer, and the host computer displays the alarm information on the air conditioner display screen.

2. A computer room air conditioner with a fire extinguishing system according to claim 1, characterized in that: The model of the temperature sensor is PT100-CWF1.

3. The computer room air conditioner with a fire extinguishing system according to claim 1, characterized in that: The model of the air-conditioning controller is PLC-HAC01M3.

4. The computer room air conditioner with a fire extinguishing system according to claim 1, characterized in that: The fire extinguishing device comprises a fire extinguishing tank (1), a fixing seat (2) and a nozzle (3); The fixing seat (2) is arranged at the bottom of the fire extinguishing tank (1), and a plurality of fixing holes (4) are arranged on both sides of the fixing seat (2); The nozzles (3) are arranged on one side of the wide side of the fire extinguishing tank (1), and the nozzles (3) are evenly distributed in a petal shape.

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