Energy storage fire-fighting fan control device

Abstract

The utility model relates to an energy storage fire-fighting fan control device in the field of fire-fighting fans, which comprises a main input switch, a fire-fighting fan, a fan shutter and a switching power supply, the switching power supply and the fire-fighting fan are connected with the main input switch in series, the switching power supply and the fire-fighting fan are connected in parallel, and the fan shutter is connected with the switching power supply in series. Comprising a fire-fighting input and output module and a manual and automatic control circuit, the fire-fighting input and output module is connected with a shutter fan stop relay in series, and the manual and automatic control circuit is connected with a switching power supply in series. The manual-automatic control circuit comprises a manual-automatic dual-mode key, a gas detection switch, a fan starting relay and a shutter starting relay, the manual-automatic dual-mode key, the gas detection switch and the fan starting relay are sequentially connected in series, the shutter starting relay is connected with the fan starting relay in parallel, and work of the fire fighting fan and the fan shutter can be automatically stopped; the fire extinguishing medium is effectively prevented from being discharged by the fire fighting fan during fire extinguishing, and the fire extinguishing effect is ensured.

Description

Technical Field

[0001] The utility model relates to the field of fire-fighting fans, in particular to a control device for an energy-storage fire-fighting fan. Background Art

[0002] Against the backdrop of emerging new energy sources and the rapid development of source-grid-load energy storage, active smoke exhaust and ventilation systems are crucial for the safe operation of energy storage systems in hazardous environments such as energy storage battery warehouses, where flammable and explosive gases are present. Many energy storage power stations built in recent years lack fire smoke exhaust and ventilation equipment. According to current fire protection regulations and other documents, both existing and newly built energy storage power stations are required to be equipped with active fire smoke exhaust and ventilation equipment. Energy storage devices, especially large energy storage battery warehouses, may generate flammable and explosive gases during operation. The accumulation of these gases poses a serious threat to the safe operation of energy storage systems. To ensure the safety of energy storage devices, fire smoke exhaust systems have become an indispensable component.

[0003] The fire smoke exhaust system for an energy storage device primarily consists of sensors, a controller, a smoke exhaust fan, and exhaust ducting. The sensors monitor the gas concentration and temperature within the energy storage device in real time and immediately send a signal to the controller if an anomaly is detected. Upon receiving the signal, the controller quickly activates the smoke exhaust fan, which then expel harmful gases from the energy storage device through the exhaust ducting. Furthermore, the system may include auxiliary equipment such as fire dampers and exhaust vents to ensure a smooth smoke exhaust process.

[0004] Existing firefighting smoke exhaust systems for energy storage devices have significant flaws during firefighting. When a fire breaks out in the energy storage compartment, the firefighting system activates and releases extinguishing medium to immerse the fire, but the smoke exhaust system fails to automatically shut down. This causes the extinguishing medium to not only immerse the storage compartment but also leak out through the remaining smoke exhaust fans and louvers. This leakage not only reduces the effective utilization of the extinguishing medium but can also cause the fire to spread, as the leaking extinguishing medium cannot completely cover the fire source. Utility Model Content

[0005] In order to overcome the deficiencies of the existing technical solutions, the utility model provides an energy storage fire fighting fan control device, which can effectively solve the technical problem that the smoke exhaust fan and shutters cannot be automatically closed when a fire occurs.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A storage energy fire-fighting fan control device includes a main input switch, a fire-fighting fan, fan louvers and a switching power supply. The switching power supply and the fire-fighting fan are both connected in series with the main input switch, the switching power supply and the fire-fighting fan are connected in parallel, and the fan louvers are connected in series with the switching power supply. The device also includes a fire-fighting input and output module and a manual-automatic control circuit. The fire-fighting input and output module is connected in series with a louver fan stop relay. The manual-automatic control circuit is connected in series with the switching power supply. The main input switch is electrically connected to the fire-fighting fan through an AC contactor. The manual-automatic control circuit includes a manual-automatic dual-mode button, a gas detection switch, a fan start relay and a louver start relay. The manual-automatic dual-mode button, the gas detection switch and the fan start relay are connected in series in sequence. The louver start relay is connected in parallel with the fan start relay. The contacts in the louver start relay, the fan start relay and the AC contactor are all normally open contacts. The louver fan stop relay can control the opening and closing states of the fan start relay and the louver start relay.

[0008] Furthermore, the gas detection switch is connected in parallel with a manual start-stop button, and the manual start-stop button and the gas detection switch are respectively connected in series with a manual-automatic dual-mode button, and the two manual-automatic dual-mode buttons operate synchronously.

[0009] Furthermore, the contacts in the shutter fan stop relay are normally closed contacts. When the fire input and output module receives the signal, it controls the contacts of the shutter fan stop relay to be disconnected.

[0010] Furthermore, the fan louvers include exhaust louvers and suction louvers, the exhaust louvers and the suction louvers are connected in parallel with each other, and relays are connected in series between the exhaust louvers and the suction louvers and the switching power supply.

[0011] Furthermore, a power indicator light is connected in series between the main input switch and the switching power supply.

[0012] Furthermore, the power indicator light is connected in parallel with an operation indicator light.

[0013] Furthermore, it includes an explosion-proof box, which is provided with a control chamber and a wiring chamber, and a wire hole is provided between the control chamber and the wiring chamber. The switching power supply, the louver fan stop relay, the louver start relay, the fan start relay and the AC contactor are all arranged in the control chamber, and the wiring chamber is provided with wiring terminals and wire outlet holes. The wiring harness in the control chamber passes through the wire hole and is connected to the wiring terminal, and the wiring harness of the wiring terminal extends to the outside of the explosion-proof box through the wire outlet hole.

[0014] Compared with the prior art, the beneficial effects of the present invention are: a fire input and output module and a manual and automatic control circuit are provided. During normal operation, the louver fan stop relay is energized, the fan start relay and the louver start relay are both in a closed state, and the fire fan and the fan louver are started. When the fire protection input and output module receives a fire signal, the louver fan stop relay coil loses power, causing the fan start relay and the louver start relay to lose power and restore to the disconnected state, causing the fire fan and the fan louver to stop running and recover. The fire fan and the fan louver can automatically stop working, effectively preventing the fire extinguishing medium from being discharged by the fire fan during fire extinguishing, thereby ensuring the fire extinguishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the electrical schematic diagram of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the explosion-proof box in the utility model;

[0017] Numbers in the figure: 1- main input switch, 2- fire fan, 3- fan shutter, 4- switching power supply, 5- fire input and output module, 6- shutter fan stop relay, 7- fire host, 8- power indicator light, 9- operation indicator light, 10- manual and automatic dual mode button, 11- gas detection switch, 12- fan start relay, 13- shutter start relay, 14- manual start and stop button, 15- AC contactor, 16- explosion-proof box, 17- wiring chamber, 18- control chamber, 19- wire hole, 20- wire outlet hole, 21- wiring terminal. DETAILED DESCRIPTION

[0018] 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.

[0019] The following combination Figure 1-Figure 2 The utility model is described in detail:

[0020] A storage energy fire fan control device includes a main input switch 1, a fire fan 2, a fan louver 3 and a switching power supply 4. The switching power supply 4 and the fire fan 2 are both connected in series with the main input switch 1, the switching power supply 4 and the fire fan 2 are connected in parallel, and the fan louver 3 is connected in series with the switching power supply 4. It also includes a fire input and output module 5 and a manual and automatic control circuit. The fire input and output module 5 is connected in series with a louver fan stop relay 6 and a fire host 7, the manual and automatic control circuit is connected in series with the switching power supply 4, the main input switch 1 is electrically connected to the fire fan 2 through an AC contactor 15, and a power indicator light 8 is connected in series between the main input switch 1 and the switching power supply 4, and the power indicator light 8 is connected in parallel with an operation indicator light 9.

[0021] The manual-automatic control circuit includes a manual-automatic dual-mode button 10, a gas detection switch 11, a fan start relay 12 and a shutter start relay 13. The manual-automatic dual-mode button 10, the gas detection switch 11 and the fan start relay 12 are connected in series in sequence, and the shutter start relay 13 is connected in parallel with the fan start relay 12. The contacts in the shutter start relay 13, the fan start relay 12 and the AC contactor 15 are all normally open contacts, and the contacts in the shutter fan stop relay 6 are normally open contacts. When the fire input and output module 5 receives the signal, it controls the contact of the shutter fan stop relay 6 to close. The shutter fan stop relay 6 can control the opening and closing states of the fan start relay 12 and the shutter start relay 13.

[0022] The gas detection switch 11 is connected in parallel with a manual start / stop button 14, and the manual start / stop button 14 and the gas detection switch 11 are respectively connected in series with a manual-automatic dual-mode button 10, and the two manual-automatic dual-mode buttons 10 operate synchronously. The fan louvers 3 include exhaust louvers and suction louvers, and the exhaust louvers and suction louvers are connected in parallel with each other, and relays are connected in series between the exhaust louvers and the suction louvers and the switching power supply 4.

[0023] The system includes an explosion-proof housing 16, which is provided with a control chamber 18 and a wiring chamber 17. A wire hole 19 is provided between the control chamber 18 and the wiring chamber 17. The switch power supply 4, the louver fan stop relay 6, the louver start relay 13, the fan start relay 12, and the AC contactor 15 are all provided in the control chamber 18. The wiring chamber 17 is provided with a wiring terminal 21 and a wire outlet 20. The wiring harness in the control chamber 18 passes through the wire hole 19 and connects to the wiring terminal 21. The wiring harness of the wiring terminal 21 extends to the outside of the explosion-proof housing 16 through the wire outlet 20. After the corresponding power lines and control signal lines are connected, the wire hole 19 is sealed with resin glue to ensure that the control chamber 18 is completely sealed. This prevents electrical sparks from affecting the entire energy storage system.

[0024] A control device for an energy storage fire-fighting fan 2 in this embodiment is provided with a fire-fighting input and output module 5 and a manual-automatic control circuit. During normal operation, the louver fan stop relay 6 is energized, the fan start relay 12 and the louver start relay 13 are both in a closed state, and the fire-fighting fan 2 and the fan louver 3 are started. When the fire-fighting input and output module receives a fire signal, the coil of the louver fan stop relay 6 loses power, causing the fan start relay 12 and the louver start relay 13 to lose power and return to the disconnected state, causing the fire-fighting fan 2 and the fan louver 3 to stop running and recover, effectively preventing the fire-fighting medium from being discharged by the fire-fighting fan 2 during fire extinguishing, thereby ensuring the fire-fighting effect.

[0025] like Figure 1 Shown is the electrical schematic, divided into manual and automatic operation logic.

[0026] Automatically run logic;

[0027] Automatic start: After power is applied, first close the main input switch 1, the power indicator light 8 is energized and illuminated, the switch power supply 4 is energized to output DC 24V, and the handle is turned to the automatic mode by pressing the dual-mode button 10. When the combustible gas detection system detects that the combustible gas concentration reaches the set value, it sends a signal. After the gas detection switch 11 is closed, the 24V power passes through the normally closed contact of the louver fan stop relay 6, and the fan start relay 12 and the louver start relay 13 coils are energized, causing the fan start relay 12 normally open contact to close, the AC contactor 15 coil to energize, and the operation indicator light 9 to illuminate. After the AC contactor 15 coil is energized, the normally open contact closes, the fire fan 2 is energized and operates, and after the normally open contact of the louver start relay 13 closes, the suction louvers and exhaust louvers are energized, and the suction louvers and exhaust louvers open simultaneously, completing the automatic start.

[0028] Automatic stop: When the gas detection switch 11 detects that there is no combustible gas in the warehouse, the gas detection switch 11 returns to normal opening, the fan start relay 12 and the shutter start relay 13 coils lose power, the normally open contacts return to normal opening, the fire fan 2, the suction louvers and the exhaust louvers lose power, the fire fan 2 stops running, and the suction louvers and the exhaust louvers are closed.

[0029] Forced stop: When the system is running, after the fire host 7 sends a fire signal, the fire input and output module 5 closes the contacts after receiving the signal from the fire host 7, the louver fan stop relay 6 coil is energized, the louver fan stop relay 6 normally closed contacts are disconnected, the fan start relay 12 and the louver start relay 13 coils lose power, the normally open contacts return to normally open, the fire fan 2, suction louvers and exhaust louvers lose power, the fire fan 2 stops running, and the suction louvers and exhaust louvers are closed.

[0030] Manually run the logic;

[0031] Manual start: After power is turned on, first close the main input switch 1, the power indicator light 8 is energized and lights up, the switch power supply 4 is energized to output DC 24V, turn the dual-mode button 10 to manual mode, press the manual start-stop button 14, and after the normally closed contact of the louver fan stop relay 6, the fan start relay 12 and the louver start relay 13 coils are energized. The normally open contact of the fan start relay 12 is closed, the AC contactor 15 coil is energized, and the operation indicator light 9 is energized and lights up. After the AC contactor 15 coil is energized, the normally open contact is closed, and the fire fan 2 is energized and running. After the normally open contact of the louver start relay 13 is closed, the suction louver and the exhaust louver are energized, and the suction louver and the exhaust louver are opened at the same time, and the manual start is completed.

[0032] Manual stop: Turn off the manual start-stop button 14, then turn the dual-mode button 10 to automatic mode, the fan start relay 12 and the shutter start relay 13 coils lose power, the normally open contacts return to normally open, the fire fan 2, the suction louvers and the exhaust louvers lose power, the fire fan 2 stops running, and the suction louvers and the exhaust louvers are closed.

[0033] Forced stop: When the system is running, after the fire host 7 sends a fire signal, the fire input and output module 5 receives the signal from the fire host 7, closes the output signal contact, the louver fan stop relay 6 coil is energized, the louver fan stop relay 6 normally closed contact is disconnected, the fan start relay 12 and the louver start relay 13 coils lose power, the normally open contacts return to normally open, the fire fan 2, suction louvers and exhaust louvers lose power, the fire fan 2 stops running, and the suction louvers and exhaust louvers are closed.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A storage energy fire fan control device, comprising a main input switch, a fire fan, fan louvers, and a switching power supply, wherein the switching power supply and the fire fan are connected in series with the main input switch, the switching power supply and the fire fan are connected in parallel, and the fan louvers are connected in series with the switching power supply, characterized in that: It also includes a fire input and output module and a manual control circuit. The fire input and output module is connected in series with a louver fan stop relay. The manual control circuit is connected in series with the switching power supply. The main input switch is electrically connected to the fire fan through an AC contactor. The manual control circuit includes a manual dual-mode button, a gas detection switch, a fan start relay and a louver start relay. The manual dual-mode button, the gas detection switch and the fan start relay are connected in series in sequence. The louver start relay is connected in parallel with the fan start relay. The contacts in the louver start relay, the fan start relay and the AC contactor are all normally open contacts. The louver fan stop relay can control the opening and closing states of the fan start relay and the louver start relay.

2. The energy storage fire-fighting fan control device according to claim 1, characterized in that: The gas detection switch is connected in parallel with a manual start-stop button, and the manual start-stop button and the gas detection switch are respectively connected in series with a manual-automatic dual-mode button, and the two manual-automatic dual-mode buttons operate synchronously.

3. The energy storage fire-fighting fan control device according to claim 1, characterized in that: The contacts in the shutter fan stop relay are normally closed contacts. When the fire input and output module receives the signal, the contacts of the shutter fan stop relay are controlled to be disconnected.

4. The energy storage fire-fighting fan control device according to any one of claims 1 to 3, characterized in that: The fan louvers include exhaust louvers and suction louvers, the exhaust louvers and the suction louvers are connected in parallel with each other, and relays are connected in series between the exhaust louvers and the suction louvers and the switching power supply.

5. The energy storage fire-fighting fan control device according to any one of claims 1 to 3, characterized in that: A power indicator light is connected in series between the main input switch and the switching power supply.

6. The energy storage fire-fighting fan control device according to claim 5, characterized in that: The power indicator light is connected in parallel with an operation indicator light.

7. The energy storage fire-fighting fan control device according to any one of claims 1 to 3, characterized in that: It includes an explosion-proof box, which is equipped with a control chamber and a wiring chamber. A wire hole is provided between the control chamber and the wiring chamber. The switching power supply, louver fan stop relay, louver start relay, fan start relay and AC contactor are all arranged in the control chamber. The wiring chamber is provided with wiring terminals and wire outlet holes. The wiring harness in the control chamber passes through the wire outlet holes and is connected to the wiring terminals. The wiring harness of the wiring terminals extends to the outside of the explosion-proof box through the wire outlet holes.

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