CN111271312A - A fire-fighting exhaust fan distribution box - Google Patents

Abstract

The invention discloses a power distribution box for a fire-fighting smoke exhaust fan. Start module, fan operation module, thermal overload protection module and fault feedback module, fire start module includes forced start module and remote start and stop module, fan operation module includes high-speed operation module and low-speed operation module, thermal overload protection module includes high-speed overload module and The low-speed overload module, the high-speed overload module is correspondingly connected to the high-speed operation module, and the low-speed overload module is correspondingly connected to the low-speed operation module.

Description

A fire-fighting exhaust fan distribution box

technical field

The invention belongs to the technical field of distribution box equipment, and in particular relates to a distribution box for a fire-fighting smoke exhaust fan.

Background technique

At present, there are many problems exposed by the fire and smoke exhaust system of building facilities, especially the problems existing in the fire and smoke exhaust system of high-rise buildings need to be solved. In actual use, many fires are caused by the bad smoke exhaust system. Serious consequences . In the fire and smoke exhaust system, the smoke exhaust fan is its core component. The stable operation of the smoke exhaust fan determines the quality of the entire smoke exhaust system. The control equipment of the fire smoke exhaust fan is called the fire exhaust fan distribution box. Also known as the fire fan control box, it is mainly used to control the start and stop of the fire exhaust fan. It is suitable for high-rise buildings, underground buildings and tunnels where ventilation is required. , The above places can effectively ventilate and prevent fire through the use of fire exhaust fans. However, the control method of the existing fire smoke exhaust fan distribution box is very simple, it can only be simply opened and closed, and there is no overload protection mechanism, and when the smoke exhaust fan fails, the user cannot be notified in time through the fault alarm device. .

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a distribution box for a fire-fighting smoke exhaust fan, which solves the technical problems of the existing single control method, no overload protection mechanism and failure to alarm in time. The technical scheme adopted in the present invention is as follows:

A fire-fighting smoke exhaust fan power distribution box, comprising a power distribution box, a control host located in the power distribution box, and an operation panel located on the front side of the power distribution box, the control host includes a manual automatic switching module, a fire-fighting start module, and a fan Operation module, thermal overload protection module and fault feedback module, fire start module includes forced start module and remote start/stop module, fan operation module includes high-speed operation module and low-speed operation module, high-speed operation module adopts KM2 contactor and KM3 contactor, low-speed operation module The running module adopts KM1 contactor. The thermal overload protection module includes high-speed overload module and low-speed overload module. The high-speed overload module is correspondingly connected to the high-speed running module, and the low-speed overload module is correspondingly connected to the low-speed running module. The module adopts FR2 thermal relay.

Further, the control host is controlled by a microcontroller, and the microcontroller is connected with the operation panel.

Further, the fire-fighting start module includes a start button and a stop button, and the start button and the stop button are both arranged on the operation panel.

Further, the forced start module is started with a fire-fighting DC24V relay.

Further, the fault feedback module includes an alarm lamp and an audible alarm assembly, and the fault feedback module receives the alarm signal and controls the corresponding alarm lamp to light up and the audible alarm assembly to emit sound.

Further, the operation panel is provided with a plurality of LED display lights, and the plurality of LED display lights respectively indicate the high-speed operation state, the high-speed overload state, the low-speed operation state, the low-speed overload state, the manual control state, the automatic control state and the exhaust valve failure state, The LED display lights indicating different states are connected with the corresponding modules inside the host.

Further, the control panel is provided with a high-speed start switch, a high-speed stop switch, a low-speed start switch, a low-speed stop switch and a manual automatic switch, and a high-speed start switch, a high-speed stop switch, a low-speed start switch, a low-speed stop switch, and a manual automatic switch switch are provided. Each independent control circuit is connected with the corresponding module inside the control host.

To sum up, due to the adoption of the above-mentioned technical solutions, the beneficial effects of the present invention are:

1. In the present invention, the control host is used to control the fire-fighting smoke exhaust fan, the operation panel is used to operate the control host, and the manual automatic switching module can ensure that the control host has a variety of control modes, which can be controlled in different ways according to the needs of the situation. , the forced start module can receive the fire signal detected and sent by the relevant fire sensor to start the high-speed start switch in the high-speed operation module when a fire occurs, and automatically cut off the low-speed stop switch in the low-speed operation module to achieve rapid smoke exhaust The effect of ventilation, but in normal times, the fire exhaust fan is mainly kept in a low-speed operation state, so that the fire exhaust fan has a conventional ventilation effect.

2. In the present invention, the high-speed overload module is correspondingly connected with the high-speed operation module, and the low-speed overload module is correspondingly connected with the low-speed operation module, which can effectively protect the fire-fighting smoke exhaust fan, make the fire-fighting smoke exhaust fan have thermal overload protection function, and ensure thermal The overload protection function can be performed normally in both high-speed operation and low-speed operation. The use of alarm lights and audible alarm components can detect the status of the fire exhaust fan in time, and timely determine whether the fire exhaust fan is faulty, which is convenient for the fire exhaust fan. inspection and maintenance.

3. In the present invention, the use of LED display lights can accurately display the operating state of the fire-fighting smoke exhaust fan on the control panel, and the fire-fighting smoke exhaust fan can be accurately repaired when the fire-fighting smoke exhaust fan fails, and the high-speed start switch is used. , High-speed stop switch, low-speed start switch, low-speed stop switch and manual automatic switch respectively control the corresponding modules inside the host, which can reduce the complexity of the control of the fire exhaust fan and ensure that the control modules will not affect each other.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Figure 2 is a schematic diagram of the wiring of ports 1 to 16 of the control host;

Figure 3 is a schematic diagram of the circuit connection between the LED display lamp and the VCC power supply;

Figure 4 is a schematic diagram of the circuit connection between the rotary switch and the VCC power supply.

Marked in the figure: 101-distribution box, 102-operation panel, 103-display panel, 104-operation panel, 105-start button, 106-stop button, 107-LED display light, 108-knob switch, 109-rectangle Protective case, 110-alarm light, 111- audible alarm assembly.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

As shown in FIG. 1 , a power distribution box for a fire-fighting smoke exhaust fan includes a power distribution box 101 , a control host located inside the power distribution box 101 and an operation panel 102 located on the front side wall of the power distribution box 101 . The host is controlled by a microcontroller, and the microcontroller is connected to the operation panel 102 . The control host includes manual automatic switching module, fire start module, fan operation module, thermal overload protection module and fault feedback module. The fire-fighting start module includes a forced start module and a remote start-stop module. The fire-fighting start module includes a start button 105 and a stop button 106. The start button 105 and the stop button 106 are both set on the operation panel 102. The forced start module uses a fire DC24V relay to start. The startup module can be directly connected to the DC24V power supply. In this embodiment, a switching power supply is provided inside the control host, and the 220V voltage connected to the fire-fighting smoke exhaust air box is converted into DC24V through the switching power supply. Fan operation module includes high-speed operation module and low-speed operation module, high-speed operation module adopts KM2 contactor and KM3 contactor, low-speed operation module adopts KM1 contactor, thermal overload protection module includes high-speed overload module and low-speed overload module, high-speed overload module and high-speed overload module. The operation module is connected correspondingly, the low-speed overload module is connected with the low-speed operation module correspondingly, the high-speed overload module adopts FR1 thermal relay, and the low-speed overload module adopts FR2 thermal relay, which can independently control different operation modules without affecting each other. The fault feedback module includes an alarm light 110 and an audible alarm assembly 112. The fault feedback module receives the alarm signal and controls the corresponding alarm light 110 to light up and the audible alarm assembly 112 to emit sound. The alarm light 110 and the audible alarm assembly 112 are both arranged in the distribution box the top of the body 101. As shown in Figure 2, the high-speed overload module, low-speed overload module, low-speed overload module, remote start-stop module, high-speed operation module and low-speed operation module are all connected to the 220V voltage connected to the power distribution box 101 through 1 to 16 ports.

As shown in FIG. 3 and FIG. 4 , the operation panel 102 is arranged on the upper part of the front side wall of the power distribution box 101 along the direction parallel to the front side wall of the power distribution box 101 , and the alarm light 110 and the sounding alarm assembly 112 are both located on the operation panel 102 Above, the operation panel 102 includes an operation panel 103 located at the upper part of the operation panel 102 and an operation panel 104 located at the lower part of the operation panel 102. The operation panel 103 is provided with a plurality of LED display lights 107, and the plurality of LED display lights 107 respectively indicate high-speed operation. Status, high-speed overload status, low-speed running status, low-speed overload status, manual control status, automatic control status and exhaust valve fault status, LED indicators 107 indicating different statuses are connected to the corresponding modules inside the host, all LED indicators 107 Both are protected by a rectangular protective case 109 provided on the operation panel 103 . The operation panel 104 is provided with a plurality of rotary switches 108. The rotary switches 108 include a high-speed start switch, a high-speed stop switch, a low-speed start switch, a low-speed stop switch and a manual automatic switch, a high-speed start switch, a high-speed stop switch, a low-speed start switch, and a low-speed start switch. The rear ends of the stop switch and the manual automatic switch are connected to the control host located inside the power distribution box 101 through the connecting wires passing through the front side wall of the power distribution box 101. The high-speed start switch, high-speed stop switch, low-speed start switch, The low-speed stop switch and the manual automatic switch are connected to the corresponding modules inside the control host through their independent control circuits, and the control circuits do not interfere with each other. The start button 105 and the stop button 106 are also arranged on the operation panel 104. The start button 105 and the stop button 106 are located below the high-speed start switch, the high-speed stop switch, the low-speed start switch, the low-speed stop switch and the manual automatic switch, which can be conveniently controlled The start button 105 is located on the left side of the stop button 106 for the opening and closing of the fire-fighting smoke exhaust fan, and the start button 105 and the stop button 106 are provided with text marks for the convenience of control.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (8)

1. The utility model provides a fire control smoke exhaust fan block terminal which characterized in that: including the distribution box, be located the main control system of distribution box and be located the operating panel on the distribution box front side, the main control system includes manual automatic switch-over module, fire control start module, fan operation module, thermal overload protection module and trouble feedback module, fire control start module is including forcing start module and long-range start-stop module, fan operation module includes high-speed operation module and low-speed operation module, thermal overload protection module includes high-speed overload module and low-speed overload module, and high-speed overload module corresponds with high-speed operation module to be connected, and low-speed overload module corresponds with low-speed operation module to be connected.

2. The fire protection and smoke exhaust fan distribution box of claim 1, characterized in that: the control host is controlled by a microcontroller, and the microcontroller is connected with the operation panel.

3. The fire protection and smoke exhaust fan distribution box of claim 1, characterized in that: the fire-fighting starting module comprises a starting button and a stopping button, and the starting button and the stopping button are both arranged on the operation panel.

4. The fire protection and smoke exhaust fan distribution box of claim 1, characterized in that: the fire protection starting module is started by a fire protection DC24V relay.

5. The fire protection and smoke exhaust fan distribution box of claim 1, characterized in that: the fault feedback module comprises an alarm lamp and a sounding alarm assembly, and receives an alarm signal and controls the corresponding alarm lamp to be turned on and the sounding alarm assembly to sound.

6. The fire protection and smoke exhaust fan distribution box of claim 5, wherein: alarm lamp and sound production warning subassembly all set up the top at distribution box.

7. The fire protection and smoke exhaust fan distribution box of claim 1, characterized in that: the operating panel is provided with a plurality of LED display lamps, the LED display lamps respectively indicate a high-speed running state, a high-speed overload state, a low-speed running state, a low-speed overload state, a manual control state, an automatic control state and an exhaust valve fault state, and the LED display lamps indicating different states are connected with corresponding modules inside the host.

8. The fire protection and smoke exhaust fan distribution box of claim 1, characterized in that: the control panel is provided with a high-speed starting switch, a high-speed stopping switch, a low-speed starting switch, a low-speed stopping switch and a manual-automatic change-over switch, and the high-speed starting switch, the high-speed stopping switch, the low-speed starting switch, the low-speed stopping switch and the manual-automatic change-over switch are connected with corresponding modules inside the control host through respective independent control circuits.

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