Ventilation control cabinet

Abstract

The utility model discloses a ventilation control cabinet, which comprises a cabinet body, a PLC (Programmable Logic Controller) is fixed in the cabinet body, a wiring terminal is arranged below the PLC, and the PLC is matched with the wiring terminal to receive a detection signal of a gas detector and output a normally open contact signal to control a fan and an electric shutter in a linkage manner. According to the utility model, through the cooperation of the PLC and the wiring terminal, the functions of power supply, signal receiving, alarm output and the like of the gas detector can be integrated, and power supply and linkage control of the fan and the electric shutter can be realized; the functions of signal detection, output, self-inspection and monitoring are achieved through the control module, the reliability and safety of the system are improved through the integrated design scheme, wiring and installation work is simplified, and convenience is brought to control management of the energy storage container cabinet.

Description

Technical Field

[0001] The utility model relates to the technical field of control cabinets, in particular to a ventilation control cabinet. Background Art

[0002] The energy storage container is a mobile energy storage device that integrates energy storage equipment and control systems, usually designed in the form of a container. It can be used to store and release electrical energy, thermal energy or other forms of energy to provide reliable energy support for on-site power supply or emergency power. The fire fan control cabinet is a device used to monitor the operating status of the fire fan inside the energy storage container. It is usually composed of a controller, power supply, relay, protection device and display. It receives signals from sensors and controls the start and stop, speed adjustment and fault handling of the fire fan according to preset parameters. It can also realize remote control functions by connecting external devices such as fire alarm systems or manual buttons.

[0003] Existing fan control cabinets can usually only control the start and shutdown of the fan. When linkage control is required, the corresponding loading module must be added, which takes up a large amount of space. In addition, when it is necessary to transmit and process multiple control signals and perform corresponding judgment and control operations, the delay is too high, resulting in an inability to respond to actual smoke exhaust and ventilation needs in a timely manner. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a ventilation control cabinet.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions, including:

[0006] A cabinet body, wherein a PLC controller is fixed inside the cabinet body, and wiring terminals are arranged below the PLC. The PLC controller cooperates with the wiring terminals to receive detection signals of the gas detector and outputs a normally open contact signal to control the fan and the electric blinds in a linkage manner.

[0007] As a further description of the above technical solution, a door lock is arranged on the left side of the front panel of the cabinet, and a knob is arranged on the right side of the door lock, and the knob is used to switch the working state.

[0008] As a further description of the above technical solution, cable troughs are symmetrically fixed at the edges and the middle of the cabinet, and the cable troughs are used to assist in fixing the cables.

[0009] As a further description of the above technical solution, an ultra-thin relay is fixed on the left side of the PLC controller, and a switching power supply is fixed on the right side of the PLC controller.

[0010] As a further description of the above technical solution, the ultra-thin relay includes a first ultra-thin relay and a second ultra-thin relay, the first ultra-thin relay is provided in two groups, and the second ultra-thin relay is provided in three groups.

[0011] As a further description of the above technical solution, an intermediate relay is fixed on the left side of the ultra-thin relay, and two groups of the intermediate relays are provided.

[0012] As a further description of the above technical solution, a miniature circuit breaker is fixed on the left side of the intermediate relay, and two groups of miniature circuit breakers are provided.

[0013] As a further description of the above technical solution, the wiring terminals include, from left to right, a first wiring terminal, a second wiring terminal, a third wiring terminal, a fourth wiring terminal, a fifth wiring terminal, a sixth wiring terminal, and a seventh wiring terminal.

[0014] As a further description of the above technical solution, the first terminal is used to connect the power supply and the ground, the second terminal is used to connect the gas detector, the third terminal and the fourth terminal are used to connect the fan and the electric blinds, the fifth terminal is used to connect the serial communication, and the sixth terminal and the seventh terminal are used to allocate connections for the internal circuit.

[0015] As a further description of the above technical solution, a fuse is fixed on the right side of the terminal block, and three groups of the fuses are provided. The fuses are used to protect the fan circuit, the electric blinds circuit and the main circuit.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. The utility model can integrate the power supply, signal reception and alarm output functions of the gas detector through the cooperation of the PLC controller and the wiring terminals, and can realize the power supply and linkage control of the fan and the electric blinds.

[0018] 2. The utility model realizes the functions of signal detection, output, self-test and monitoring through the control module. The integrated design scheme not only improves the reliability and safety of the system, but also simplifies the wiring and installation work, bringing convenience to the control and management of the energy storage container.

[0019] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the ventilation control cabinet of the utility model;

[0021] Figure 2yes Figure 1 Schematic diagram of the structure after removing the front panel;

[0022] Figure 3 yes Figure 1 The main view after removing the front panel;

[0023] Figure 4 yes Figure 1 The structural diagram after removing the cabinet;

[0024] Figure 5 yes Figure 1 The main view after removing the cabinet;

[0025] Figure 6 It is a schematic diagram of the control module of the ventilation control cabinet of the utility model;

[0026] Figure 7 It is an operation flow chart of the ventilation control cabinet of the utility model.

[0027] Reference numerals:

[0028] 1. Cabinet; 11. Door lock; 12. Knob; 13. Wire trough; 2. PLC controller; 3. Terminal block; 31. First terminal block; 32. Second terminal block; 33. Third terminal block; 34. Fourth terminal block; 35. Fifth terminal block; 36. Sixth terminal block; 37. Seventh terminal block; 4. Ultra-thin relay; 41. First ultra-thin relay; 42. Second ultra-thin relay; 5. Intermediate relay; 6. Miniature circuit breaker; 7. Fuse; 8. Switching power supply. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0030] like Figure 1-Figure 7 As shown, in one embodiment, a ventilation control cabinet includes: a cabinet body 1, a PLC controller 2 is fixed inside the cabinet body 1, and a wiring terminal 3 is arranged below the PLC. The control module is constructed by the cooperation of the PLC controller 2 and the wiring terminal 3 to realize the reception of the detection signal of the gas detector and the output of the normally open contact signal, thereby controlling the fan and the electric blinds in a linked manner. The ventilation and exhaust system designed in this way can effectively prevent the accumulation of combustible gas to reach the explosion concentration threshold. After being combined with the fire alarm controller, gas detector and other equipment, a complete safety monitoring system is formed to remind the operator to take timely measures to avoid accidents.

[0031] like Figure 1-Figure 5As shown, in this embodiment, a door lock 11 is provided on the left side of the front panel of the cabinet 1 to ensure the safety inside the cabinet 1. A knob 12 is provided on the right side of the door lock 11, and the knob 12 can be used to switch the working state. Furthermore, in order to better manage the cables, cable grooves 13 are symmetrically fixed at the edges and the middle of the cabinet 1. These cable grooves 13 can help fix the cables so that they are neatly and orderly arranged inside the cabinet 1, avoiding entanglement and confusion, making the installation and maintenance of the cables more convenient.

[0032] like Figure 1-Figure 5 As shown, in this embodiment, an ultra-thin relay 4 is fixed on the left side of the PLC controller 2, and a switch power supply 8 is fixed on the right side of the PLC controller 2. Specifically, the ultra-thin relay 4 includes a first ultra-thin relay 414 and a second ultra-thin relay 424, and the first ultra-thin relay 414 is provided in two groups, and the second ultra-thin relay 424 is provided in three groups. An intermediate relay 5 is fixed on the left side of the ultra-thin relay 4, and the intermediate relay 5 is provided in two groups. A miniature circuit breaker 6 is fixed on the left side of the intermediate relay 5, and the miniature circuit breaker 6 is provided in two groups. A fuse 7 is fixed on the right side of the terminal 3, and the fuse 7 is provided in three groups. The fuse 7 is used to protect the fan circuit, the electric blind circuit and the main circuit. By setting components such as the ultra-thin relay 4, the intermediate relay 5, the miniature circuit breaker 6 and the fuse 7, the equipment circuit can be effectively protected, complex control tasks can be achieved, and the stability and reliability of the control cabinet can be improved.

[0033] like Figure 6 As shown, in this embodiment, the control module mainly includes:

[0034] Power supply module: responsible for providing stable power to the fan, electric shutters and gas detectors to ensure the normal operation of the equipment;

[0035] Signal receiving module: receives alarm and fault signals from gas detectors and processes them in time to facilitate rapid response and handling of dangerous situations;

[0036] Internal signal output module: output electric blinds and fan start and stop signals to facilitate the control and adjustment of equipment. These signals can be processed and managed by PLC controller 2 to achieve intelligent control and management;

[0037] External signal output module: outputs fire linkage signals and 485 signals to monitor the real-time status in the control cabinet. These signals can be transmitted to the fire control center or other monitoring systems for processing and management to achieve more comprehensive and accurate equipment monitoring and management;

[0038] Main power monitoring: monitor the status of the main circuit in the cabinet. When the main circuit loses power, the fan and electric shutters will be automatically opened.

[0039] like Figure 1-Figure 5As shown, in this embodiment, the connection terminals 3 include, from left to right, a first connection terminal 313 , a second connection terminal 323 , a third connection terminal 333 , a fourth connection terminal 343 , a fifth connection terminal 353 , a sixth connection terminal 363 , and a seventh connection terminal 373 .

[0040] Specifically, the first terminal 313 is used to connect a 22V AC power supply and ground; the second terminal 323 is used to connect the power supply of the gas detector and receive the high / low concentration alarm signal, fault signal and fire linkage signal of the gas detector; the third terminal 333 and the fourth terminal 343 are used to connect the power supply of the fan and electric blinds and receive the high / low concentration alarm signal of the gas detector, the fan / electric blinds start / stop signal and the control cabinet power-on status signal; the fifth terminal 353 is used to connect serial communication; the sixth terminal 363 and the seventh terminal 373 are used to allocate connections for the internal circuit.

[0041] Working principle Figure 7 As shown:

[0042] (1) Receive low concentration and high concentration alarm threshold signals from gas detectors:

[0043] 1) When the gas detector reaches the high concentration alarm threshold, the gas detector high concentration alarm threshold signal is output, the fan / electric shutter is turned on, and the auxiliary AC circuit breaker and DC load switch are disconnected;

[0044] 2) When the gas detector drops from the high concentration alarm threshold to below the low concentration alarm threshold, stop the fan and close the electric shutter;

[0045] (2) The control cabinet provides multiple sets of terminal blocks 3 for connecting to the UPS DC 24V power supply from the fire protection system or other systems, so that when the main power of the control cabinet is cut off, the fan and the electric blinds are automatically opened. After the main power is turned on, the control cabinet automatically closes the fan and the electric blinds. The status of the fan and the electric blinds can also be manually changed by the knob 12 on the cabinet body 1.

[0046] (3) The knob 12 on the cabinet 1 has three states: "on / auto / off": in the auto state, the gas detector automatically controls the start and stop of the fan and the electric shutter; rotating to "on" opens the fan and the electric shutter; rotating to "off" closes the fan and the electric shutter.

[0047] (4) The control cabinet outputs normally open dry contact signals to the outside, including: fan start signal 1, fan start signal 2, shutter opening signal 1, shutter opening signal 2, gas detector high concentration alarm threshold signal 1, gas detector high concentration alarm threshold signal 2.

[0048] (5) The control cabinet supports Modbus RTU communication, which can monitor the status inside the control cabinet in real time and realize comprehensive monitoring and remote control functions.

[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ventilation control cabinet, characterized in that: include: A cabinet, wherein a PLC controller is fixed inside the cabinet, and a wiring terminal is arranged below the PLC. The PLC controller cooperates with the wiring terminal to receive the detection signal of the gas detector and outputs a normally open contact signal to control the fan and the electric blinds in a linkage manner; A door lock is arranged on the left side of the front panel of the cabinet, and a knob is arranged on the right side of the door lock, and the knob is used to switch the working state; Cable troughs are symmetrically fixed at the edges and the middle of the cabinet body, and are used to assist in fixing cables; An ultra-thin relay is fixed on the left side of the PLC controller, and a switching power supply is fixed on the right side of the PLC controller; The ultra-thin relays include first ultra-thin relays and second ultra-thin relays, the first ultra-thin relays are provided in two groups, and the second ultra-thin relays are provided in three groups; An intermediate relay is fixed on the left side of the ultra-thin relay, and two groups of intermediate relays are provided; A miniature circuit breaker is fixed on the left side of the intermediate relay, and two groups of miniature circuit breakers are provided; The wiring terminals include, from left to right, a first wiring terminal, a second wiring terminal, a third wiring terminal, a fourth wiring terminal, a fifth wiring terminal, a sixth wiring terminal, and a seventh wiring terminal; the first wiring terminal is used to connect the power supply and the ground, the second wiring terminal is used to connect the gas detector, the third wiring terminal and the fourth wiring terminal are used to connect the fan and the electric blinds, the fifth wiring terminal is used to connect the serial communication, and the sixth wiring terminal and the seventh wiring terminal are used to allocate wiring for the internal circuit.

2. A ventilation control cabinet according to claim 1, characterized in that: A fuse is fixed on the right side of the wiring terminal. The fuse is provided in three groups and is used to protect the fan circuit, the electric shutter circuit and the main circuit.

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