PLC intelligent fan control box for energy storage fire fighting

Abstract

The utility model relates to the technical field of energy storage fire fighting, and specifically discloses a PLC intelligent fan control box for energy storage fire fighting, which comprises an air switch, a direct current power supply, a start button, a stop button, a change-over switch, a PLC, a first relay, a second relay, a start indicator lamp, a stop indicator lamp, a first relay auxiliary contact one, a first relay auxiliary contact two, a first relay auxiliary contact three, a second relay auxiliary contact one, a second relay auxiliary contact two, a first exhaust fan, a second exhaust fan, an air inlet louver, a first exhaust fan operation feedback contact, a first exhaust fan fault feedback contact, a second exhaust fan operation feedback contact, a second exhaust fan fault feedback contact and an external dry node. The utility model can be adapted to different air inlet and exhaust devices, has a communication function and can collect the state of the air inlet and exhaust devices in real time.

Description

Technical Field

[0001] This utility model relates to the field of energy storage fire protection technology, specifically to a PLC intelligent fan control box for energy storage fire protection. Background Technology

[0002] There are many models of air intake and exhaust devices in the field of energy storage fire protection, each with different control principles and wiring methods. Using different models of air intake and exhaust control boxes in a project can easily lead to mixed or incorrect connections during construction.

[0003] The status of the fire protection system and the ventilation device should be displayed. However, at present, the control boxes of the air intake and exhaust devices of the energy storage fire protection system generally lack communication functions and cannot display the status of the air intake and exhaust devices in real time on the fire control panel. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a PLC intelligent fan control box for energy storage fire protection, which can be adapted to different air intake and exhaust devices, has communication functions, and can collect the status of air intake and exhaust devices in real time.

[0005] This utility model provides a PLC intelligent fan control box for energy storage fire protection, including: an air switch, a DC power supply, a start button, a stop button, a selector switch, a PLC, a first relay, a second relay, a start indicator light, a stop indicator light, auxiliary contact 1 of the first relay, auxiliary contact 2 of the first relay, auxiliary contact 3 of the first relay, auxiliary contact 1 of the second relay, auxiliary contact 2 of the second relay, a first exhaust fan, a second exhaust fan, air inlet louvers, a first exhaust fan operation feedback contact, a first exhaust fan fault feedback contact, a second exhaust fan operation feedback contact, a second exhaust fan fault feedback contact, and an external dry contact.

[0006] The air switch, DC power supply, PLC, first exhaust fan, second exhaust fan, and air inlet louvers are connected in parallel;

[0007] The PLC is connected to the start button, stop button, selector switch, first exhaust fan operation feedback contact, first exhaust fan fault feedback contact, second exhaust fan operation feedback contact, second exhaust fan fault feedback contact, external dry contact, first relay, second relay, start indicator light, and stop indicator light respectively.

[0008] One end of the first exhaust fan is provided with the first relay auxiliary contact one;

[0009] The air inlet louvers are respectively provided with the first relay auxiliary contact 2, the first relay auxiliary contact 3, the second relay auxiliary contact 1, and the second relay auxiliary contact 2 at both ends.

[0010] In one possible implementation, the PLC controls the energization and de-energization of the first and second relays, thereby controlling the opening and closing of the first exhaust fan, the second exhaust fan, and the air inlet louvers.

[0011] In one possible implementation, the exterior of the PLC intelligent fan control box has a keyhole for easy maintenance.

[0012] In one possible implementation, the PLC has communication capabilities.

[0013] In one possible implementation, the PLC collects the status of the first exhaust fan, the second exhaust fan, and the air inlet louvers in real time.

[0014] In one possible implementation, the selector switch is used to switch between manual and automatic modes of the PLC intelligent fan control box.

[0015] The PLC intelligent fan control box for energy storage fire protection provided by this utility model has communication function, can be adapted to different air intake and exhaust devices and collect and feedback relevant signals of the air intake and exhaust devices. Attached Figure Description

[0016] Figure 1 An electrical schematic diagram of a PLC intelligent fan control box provided for an embodiment of this utility model;

[0017] Figure 2 A schematic diagram of the panel structure of the PLC intelligent fan control box provided for an embodiment of this utility model;

[0018] In the attached diagram: 1-Air switch, 2-DC power supply, 3-Start button, 4-Stop button, 5-Manual / automatic switch, 6-Siemens PLC, 7-First relay, 8-Second relay, 9-Start indicator light, 10-Stop indicator light, 11-First relay auxiliary contact one, 12-First relay auxiliary contact two, 13-First relay auxiliary contact three, 14-Second relay auxiliary contact one, 15-Second relay auxiliary contact two, 16-First exhaust fan, 17-Second exhaust fan, 18-Air inlet louver, 19-First exhaust fan operation feedback contact, 20-First exhaust fan fault feedback contact, 21-Second exhaust fan operation feedback contact, 22-Second exhaust fan fault feedback contact, 23-External dry contact. Detailed Implementation

[0019] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to exemplarily illustrate the principles of this utility model, but should not be used to limit the scope of this utility model. That is, this utility model is not limited to the described preferred embodiments, and the scope of this utility model is defined by the claims.

[0020] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance; those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Figure 1 An electrical schematic diagram of the PLC intelligent fan control box provided for an embodiment of this utility model is shown below. Figure 1 As shown, this utility model provides a PLC intelligent fan control box for energy storage fire protection, including: an air switch 1, a DC power supply 2, a start button 3, a stop button 4, a changeover switch 5, a PLC 6, a first relay 7, a second relay 8, a start indicator light 9, a stop indicator light 10, a first relay auxiliary contact 11, a first relay auxiliary contact 2 12, a first relay auxiliary contact 3 13, a second relay auxiliary contact 14, a second relay auxiliary contact 2 15, a first exhaust fan 16, a second exhaust fan 17, an air inlet louver 18, a first exhaust fan operation feedback contact 19, a first exhaust fan fault feedback contact 20, a second exhaust fan operation feedback contact 21, a second exhaust fan fault feedback contact 22, and an external dry contact 23;

[0022] Air switch 1, DC power supply 2, PLC 6, first exhaust fan 16, second exhaust fan 17, air inlet louvers 18 connected in parallel;

[0023] PLC6 is connected to the start button 3, stop button 4, changeover switch 5, first exhaust fan operation feedback contact 19, first exhaust fan fault feedback contact 20, second exhaust fan operation feedback contact 21, second exhaust fan fault feedback contact 22, external dry contact 23, first relay 7, second relay 8, start indicator light 9, and stop indicator light 10.

[0024] One end of the first exhaust fan 16 is provided with a first relay auxiliary contact 11;

[0025] The air inlet louver 18 is provided with a first relay auxiliary contact 2 12, a first relay auxiliary contact 3 13, a second relay auxiliary contact 1 14, and a second relay auxiliary contact 2 15 at both ends.

[0026] In one possible implementation, the PLC controls the energization and de-energization of the first relay 7 and the second relay 8, thereby controlling the opening and closing of the first auxiliary contact 11, the first auxiliary contact 2 12, the first auxiliary contact 3 13, the second auxiliary contact 14, and the second auxiliary contact 2 15 of the first relay, and thus controlling the opening and closing of the first exhaust fan 16, the second exhaust fan 17, and the air inlet louvers 18.

[0027] In one possible implementation, the PLC6 has 485 communication functionality.

[0028] In one possible implementation, PLC6 collects the status of the first exhaust fan 16, the second exhaust fan 17, and the air inlet louvers 18 in real time.

[0029] In one possible implementation, the changeover switch 5 is used to switch between the manual and automatic modes of the PLC intelligent fan control box.

[0030] Figure 2 A schematic diagram of the panel structure of the PLC intelligent fan control box provided in this embodiment of the utility model is shown below. Figure 2 As shown, the PLC intelligent fan control box has three switches on the outside: a knob 1 for switching between manual and automatic modes, a start button 2, and a stop button 3. The PLC intelligent fan control box also has a keyhole for easy maintenance; the control box can be opened through the keyhole to inspect the internal circuitry.

[0031] The above describes the structure and connection of the control box for the air intake and exhaust system. The following describes the usage process of the PLC intelligent fan control box.

[0032] In manual mode: When the manual / automatic switch 5 is switched to the manual position and the start button 3 is pressed, the PLC receives the start signal and energizes the coil of the first relay 7, illuminating the start indicator light 9. The first exhaust fan 16 and the second exhaust fan 17 start, and the air inlet louvers 18 open. When the stop button 4 is pressed, the PLC receives the stop signal, de-energizing the coil of the first relay 7 and energizing the coil of the second relay 8. The start indicator light 9 goes out, the stop indicator light 10 illuminates, the first exhaust fan 16 and the second exhaust fan 17 stop, and the air inlet louvers 18 close. Simultaneously, the PLC collects the first exhaust fan operation feedback signal 19, the first exhaust fan fault feedback signal 20, the second exhaust fan operation feedback signal 21, and the second exhaust fan fault feedback signal 22, and feeds these signals back to the fire alarm control panel via the 485 communication port.

[0033] In automatic mode: When knob 5 is turned to the automatic position, external dry contact 23 is activated. After receiving the start signal, the PLC energizes the coil of the first relay 7, the start indicator light 9 illuminates, and the first exhaust fan 16 and the second exhaust fan 17 start, while the air inlet louvers 18 open. When the external dry contact signal is disconnected, the PLC receives the stop signal, the coil of the first relay 7 de-energizes, the coil of the second relay 8 is energized, the start indicator light 9 goes out, the stop indicator light 10 illuminates, the first exhaust fan 16 and the second exhaust fan 17 stop, and the air inlet louvers 18 close. Simultaneously, the PLC collects the first exhaust fan operation feedback signal 19, the first exhaust fan fault feedback signal 20, the second exhaust fan operation feedback signal 21, and the second exhaust fan fault feedback signal 22, and feeds these signals back to the fire alarm control panel via the 485 communication port.

[0034] The PLC intelligent fan control box for energy storage fire protection provided by this utility model can be used in fire-fighting fan louver systems in warehouses, power equipment, workshops, etc. It can be adapted to various air intake and exhaust devices and has communication functions; it can collect relevant signals such as operation and fault lights of air intake and exhaust devices; it is simple and reliable, and has both manual and automatic start-up modes, with a long maintenance-free period; it can be used in low-temperature outdoor environments; it can improve the consistency, construction convenience and intelligence level of the system.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A PLC intelligent fan control box for energy storage fire protection, characterized in that, include: Air switch (1), DC power supply (2), start button (3), stop button (4), changeover switch (5), PLC (6), first relay (7), second relay (8), start indicator (9), stop indicator (10), first relay auxiliary contact 1 (11), first relay auxiliary contact 2 (12), first relay auxiliary contact 3 (13), second relay auxiliary contact 1 (14), second relay auxiliary contact 2 (15), first exhaust fan (16), second exhaust fan (17), air inlet louver (18), first exhaust fan operation feedback contact (19), first exhaust fan fault feedback contact (20), second exhaust fan operation feedback contact (21), second exhaust fan fault feedback contact (22), external dry contact (23); The air switch (1), DC power supply (2), PLC (6), first exhaust fan (16), second exhaust fan (17), and air inlet louver (18) are connected in parallel; The PLC (6) is connected to the start button (3), stop button (4), changeover switch (5), first exhaust fan operation feedback contact (19), first exhaust fan fault feedback contact (20), second exhaust fan operation feedback contact (21), second exhaust fan fault feedback contact (22), external dry contact (23), first relay (7), second relay (8), start indicator (9), and stop indicator (10). One end of the first exhaust fan (16) is provided with the first relay auxiliary contact one (11); The air inlet louver (18) is provided with the first relay auxiliary contact 2 (12), the first relay auxiliary contact 3 (13), the second relay auxiliary contact 1 (14), and the second relay auxiliary contact 2 (15) at both ends.

2. The PLC intelligent fan control box according to claim 1, characterized in that, The PLC controls the energization and de-energization of the first relay (7) and the second relay (8), and controls the opening and closing of the auxiliary contacts 1 (11), 2 (12), 3 (13), 1 (14), and 2 (15) of the first relay, thereby controlling the opening and closing of the first exhaust fan (16), the second exhaust fan (17), and the air inlet louvers (18).

3. The PLC intelligent fan control box according to claim 1, characterized in that, The PLC intelligent fan control box has a keyhole on the outside for easy maintenance.

4. The PLC intelligent fan control box according to claim 1, characterized in that, The PLC (6) has 485 communication function.

5. The PLC intelligent fan control box according to claim 1, characterized in that, The PLC (6) collects the status of the first exhaust fan (16), the second exhaust fan (17), and the air inlet louvers (18) in real time.

6. The PLC intelligent fan control box according to claim 1, characterized in that, The selector switch (5) is used to switch between the manual mode and the automatic mode of the PLC intelligent fan control box.

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