False water spraying prevention fire extinguishing device with multi-stage combined confirmation capability

Abstract

The utility model provides a mistaken-water-spraying-preventing fire extinguishing device with a multi-stage combined confirmation capability. The mistaken-water-spraying-preventing fire extinguishing device comprises a control cabinet circuit and a fire extinguishing device internal control circuit, a far-end processor module, a primary confirmation circuit and a secondary confirmation circuit are arranged in the control cabinet circuit, the primary confirmation circuit is confirmed manually, and the secondary confirmation circuit is confirmed jointly by the far-end processor module and the primary confirmation circuit; a three-stage confirmation circuit is arranged between the far-end processor module and a near-end processor module in a control circuit in the fire extinguishing device; a near-end processor module, an energy-saving circuit and a four-stage confirmation circuit are arranged in a control circuit in the fire extinguishing device, the near-end processor module activates the energy-saving circuit according to a received fire extinguishing signal, and the four-stage confirmation circuit is jointly confirmed by the energy-saving circuit and the near-end processor module; and the fourth-stage confirmation circuit is a final confirmation circuit. According to the device, by means of multi-stage confirmation and multi-party common confirmation, the situation of mistaken water spraying caused by circuit faults is difficult to occur, and the mistaken water spraying prevention capacity is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, specifically to a fire extinguishing device with multi-level joint confirmation capability to prevent accidental water spraying. Background Technology

[0002] In modern industrial systems, fire safety is one of the most important safety tasks, requiring close attention from all parties involved in production.

[0003] Fire monitors and other fire-fighting equipment that can automatically monitor fires and extinguish them have become one of the most essential and preferred fire-fighting facilities in production and storage environments.

[0004] Current fire monitors mainly have the following two capabilities: first, they can quickly determine whether a fire has occurred in the current environment by using a combination of infrared and ultraviolet sensors installed on the fire monitor; second, they can quickly drive the fire monitor to work according to the location of the fire, so as to extinguish the fire quickly and prevent further fire accidents.

[0005] Because the above process requires automated operation, the control valves of fire monitors are usually electrically controlled valves. However, fire monitors are key facilities that operate continuously without interruption. External factors such as the continuous power supply and circuit environment may cause short circuits or communication interruptions in fire monitors due to water ingress, corrosion, foreign object intrusion, etc., which may cause temporary loss of control of the control valve circuit and lead to accidental water spraying by the fire monitor.

[0006] Accidental spraying of water by fire monitors can easily lead to production accidents, ranging from minor issues like waterlogging and spoilage of stored products to serious consequences like production shutdowns.

[0007] Therefore, a solution to prevent accidental spraying of water by fire monitors is needed to address this issue.

[0008] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0009] The purpose of this invention is to address the shortcomings of existing technologies by providing a fire extinguishing device with multi-level joint verification capabilities that strictly controls the energization logic of electric valves through multi-level verification capabilities and joint verification methods, significantly reducing the occurrence of accidental water spraying caused by circuit faults, and possessing excellent anti-accidental spraying capabilities.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is: a fire extinguishing device with multi-level joint confirmation capability to prevent accidental water spraying, including a control cabinet circuit and an internal control circuit of the fire extinguishing device.

[0011] The control cabinet circuit is equipped with a remote processor module, a primary confirmation circuit, and a secondary confirmation circuit. The primary confirmation circuit is manually confirmed, and the secondary confirmation circuit is jointly confirmed by the remote processor module and the primary confirmation circuit.

[0012] A three-level confirmation circuit is provided between the remote processor module and the near-end processor module in the internal control circuit of the fire extinguishing device. After receiving the confirmation signals from the first-level confirmation circuit and the second-level confirmation circuit, the remote processor module sends a fire extinguishing signal to the near-end processor module in the internal control circuit of the fire extinguishing device through the third-level confirmation circuit.

[0013] The fire extinguishing device's internal control circuit includes a near-end processor module, an energy-saving circuit, and a four-level confirmation circuit. The near-end processor module activates the energy-saving circuit based on the received fire extinguishing signal, and the four-level confirmation circuit is jointly confirmed by the energy-saving circuit and the near-end processor module.

[0014] The four-level confirmation circuit controls the opening and closing of the electric valve for water distribution based on the final confirmation result.

[0015] Based on the above, the primary confirmation circuit is a valve power enable / disable switch, which is a manual switch. The remote processor module is connected to the valve power enable / disable switch to collect the opening and closing signals of the valve power enable / disable switch.

[0016] Based on the above, the secondary confirmation circuit is a remote valve relay. The remote processor module is connected to the relay coil of the remote valve relay and determines whether to supply power to the relay coil of the remote valve relay based on the collected opening and closing signal of the primary confirmation circuit, thus forming half of the confirmation signal of the secondary confirmation circuit.

[0017] Based on the above, the primary confirmation circuit is connected to the remote valve relay to send an allow switch signal. The remote valve relay triggers an open / close action according to the received allow switch signal and sends the open / close signal to the processor module, forming the other half of the confirmation signal of the secondary confirmation circuit. After receiving the complete confirmation signal of the secondary confirmation circuit, the remote processor module issues a fire extinguishing signal.

[0018] Based on the above, the three-level confirmation circuit is a communication circuit connected between the near-end processor module and the far-end processor module.

[0019] Based on the above, the four-level confirmation circuit includes a near-end valve power control circuit and a near-end valve relay. The energy-saving circuit is used to power the valve power control circuit. The valve power control circuit is connected to the near-end valve relay to send an enable switch signal, constituting half of the confirmation signal of the four-level confirmation circuit. The near-end processor module is connected to the relay coil of the near-end valve relay and supplies power to the relay coil of the near-end valve relay according to the received fire extinguishing signal, constituting the other half of the confirmation signal of the four-level confirmation circuit.

[0020] The near-end valve relay closes after receiving a confirmation signal from the complete four-level confirmation circuit, and drives the electric valve controlling the water spray to open.

[0021] Based on the above, the remote valve relay is a physical relay assembly integrated into the control cabinet circuit.

[0022] Based on the above, the near-end valve relay is a physical relay assembly integrated into the internal control circuit of the fire extinguishing device.

[0023] Based on the above, the fire extinguishing device integrates a detection circuit, which is used to detect the fire and send the fire extinguishing signal to the near-end processor module inside the fire extinguishing device. The near-end processor module inside the fire extinguishing device sends the fire extinguishing signal to the far-end processor module in the control cabinet through a third confirmation circuit as a start trigger signal.

[0024] This utility model has substantial features and advancements compared to existing technologies. Specifically, it addresses the circuit design of existing fire extinguishing devices by ensuring that the relevant circuits controlling the electric spray valve are always de-energized during non-fire extinguishing periods. Simultaneously, it incorporates a four-level confirmation circuit around the de-energized near-end valve relay. Two levels of confirmation circuits are located at one end of the control cabinet, three at the communication end, and four at the near-end valve relay, forming a multi-level confirmation system. Furthermore, it incorporates joint confirmation control logic within each level of the confirmation circuit, lengthening the logic chain for the final energization of the near-end valve relay and significantly increasing the number of confirmation nodes. This prevents individual node problems caused by short circuits, corrosion, or communication interruptions from being isolated at the node location and unable to continue signal transmission, ultimately ensuring that the fire extinguishing device does not accidentally spray water, significantly improving its anti-accidental spray capability. Attached Figure Description

[0025] Figure 1 This is a circuit control schematic diagram of a fire extinguishing device with multi-level joint confirmation capability to prevent accidental water spraying, as described in this utility model. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0027] like Figure 1 As shown, a fire extinguishing device with multi-level joint confirmation capability to prevent accidental water spraying includes a control cabinet circuit and an internal control circuit of the fire extinguishing device.

[0028] The control cabinet circuit is equipped with a remote processor module, a first-level confirmation circuit, and a second-level confirmation circuit. The remote processor module is an MCU.

[0029] The primary confirmation circuit is manually confirmed. In this embodiment, the primary confirmation circuit is a valve power enable / disable switch, which is a manual switch. The remote processor module is connected to the valve power enable / disable switch to collect the opening and closing signals of the valve power enable / disable switch.

[0030] The valve-electric enable / disable switch is an existing switch. Its existing function is: when the fire extinguishing device detects an ignition and issues an alarm, the on-site personnel control the valve-electric enable / disable switch to close, indicating that a fire has indeed occurred. Therefore, this primary confirmation circuit is the basic confirmation circuit for the water spraying action.

[0031] The secondary confirmation circuit is jointly confirmed by the remote processor module and the primary confirmation circuit. In this embodiment, the secondary confirmation circuit is a remote valve relay, such as... Figure 1 As shown, the remote valve relay is a physical relay component integrated into the control cabinet circuit. It does not perform any other work and is only used for secondary confirmation. Specifically, under normal circumstances, the remote valve relay is in a de-energized state. The remote processor module is connected to the relay coil of the remote valve relay and determines whether to supply power to the relay coil of the remote valve relay based on the start / stop signal of the primary confirmation circuit. That is to say, the remote relay can only be energized and operated when the valve is in the enabled / disabled state. The energized signal constitutes half of the confirmation signal of the secondary confirmation circuit.

[0032] Meanwhile, the primary confirmation circuit, namely the valve electric enable / disable switch connected to the actuating terminal of the remote valve relay, is used to send an enable switch signal. The remote valve relay triggers an opening / closing action according to the received enable switch signal and sends the opening / closing signal to the processor module, forming the other half of the confirmation signal of the secondary confirmation circuit.

[0033] To elaborate, when the valve enable / disable switch is closed, the remote processor module controls the coil of the remote valve relay to be energized, and then waits for further signals from the valve enable / disable switch. When the valve enable / disable switch is confirmed to be closed, it will trigger the remote valve relay to change its open / closed state, forming the other half of the confirmation signal, thus forming sufficient confirmation.

[0034] This design concept can prevent the valve enable / disable switch acquisition circuit from being triggered erroneously, as well as the valve enable / disable switch execution circuit from being triggered erroneously, thus isolating the erroneous triggering situation.

[0035] After receiving the confirmation signal from the complete secondary confirmation circuit, the remote processor module issues a fire extinguishing signal.

[0036] A three-level confirmation circuit is provided between the remote processor module and the near-end processor module in the internal control circuit of the fire extinguishing device. The three-level confirmation circuit is a communication circuit connected between the near-end processor module and the remote processor module.

[0037] The communication circuit is an existing circuit, which is used as one part of the confirmation circuit.

[0038] In the initial stage, the fire extinguishing device integrates a detection circuit, which is used to detect the fire and send the fire extinguishing signal to the local processor module inside the fire extinguishing device. The local processor module inside the fire extinguishing device sends the fire extinguishing signal to the remote processor module in the control cabinet through a third confirmation circuit as a start trigger signal.

[0039] After receiving confirmation signals from the first-level and second-level confirmation circuits, the remote processor module sends a fire extinguishing signal to the near-end processor module of the internal control circuit of the fire extinguishing device through the third-level confirmation circuit.

[0040] The fire extinguishing device's internal control circuit includes a near-end processor module, an energy-saving circuit, and a four-level confirmation circuit.

[0041] The energy-saving circuit is a long-term dormant circuit. Its dormancy is to prevent downstream circuits from being falsely triggered by circuit malfunctions. It is only activated when water spraying is needed; that is, it is activated by the near-end processor module upon receiving a fire extinguishing signal. Specifically, the near-end processor module activates the energy-saving circuit based on the received fire extinguishing signal.

[0042] The four-level confirmation circuit is jointly confirmed by the energy-saving circuit and the near-end processor module; the four-level confirmation circuit controls the opening and closing of the electric valve for water distribution based on the final confirmation result.

[0043] Specifically, in this embodiment, the four-level confirmation circuit includes a proximal valve power supply control circuit and a proximal valve relay.

[0044] The energy-saving circuit is used to supply power to the valve power control circuit; that is, the valve power control circuit can only be powered on and started when it receives a fire extinguishing signal, and is always in a de-energized state under normal conditions, so it cannot be falsely triggered due to short circuits, corrosion or other problems.

[0045] The setting mode of the near-end valve relay is similar to that of the far-end relay. It is a physical relay component integrated into the internal control circuit of the fire extinguishing device. Under normal circumstances, it is not energized, but it is used as an on / off switch to trigger the opening and closing of the electric valve.

[0046] The near-end processor module is connected to the relay coil of the near-end valve relay and supplies power to the relay coil of the near-end valve relay according to the received fire extinguishing signal, forming the other half of the confirmation signal of the four-level confirmation circuit.

[0047] In other words, the near-end valve relay can only be energized under the control of the near-end processor module when a fire extinguishing signal is received, and then wait for the triggering of the action signal.

[0048] The valve power control circuit is connected to the near-end valve relay to send an enable switch signal, which constitutes half of the confirmation signal of the four-level confirmation circuit.

[0049] Specifically, the valve power control circuit essentially supplies power to the electric valve of the nozzle. At this time, the electric valve control circuit is energized and in a waiting state. The energizing signal is also sent to the near-end valve relay. After receiving the energizing signal of the electric valve, the near-end valve relay can be triggered, and the opening and closing state changes, forming the final electric valve opening and closing signal.

[0050] In summary, the near-end valve relay closes after receiving a confirmation signal from the complete four-level confirmation circuit and drives the electric valve controlling the water spray to open.

[0051] Combined with appendix Figure 1 The entire workflow will be explained as follows:

[0052] 1) When the device's detection circuit detects a fire signal, it transmits the information to the MCU main controller of the fire extinguishing device;

[0053] 2) The MCU of the fire extinguishing device transmits information to the communication circuit;

[0054] 3) The communication circuit of the control cabinet communicates with the communication circuit of the fire extinguishing device in real time and transmits fire alarm information simultaneously;

[0055] 4) The communication circuit of the control cabinet provides information to the MCU in the control section;

[0056] 5) The MCU in the control cabinet detects whether the valve's power-on / disable switch is in the valve-opening-allowed state;

[0057] 6) The valve's electric enable / disable switch transmits a signal indicating that it is in the enabled state to the remote valve relay;

[0058] 7) At the same time, the MCU of the control cabinet simultaneously activates the coil of the remote valve relay, energizing it;

[0059] 8) Comprehensive Figure 1 In section 6.7, two valve opening permission messages are transmitted to the MCU in the control cabinet;

[0060] 9) The MCU of the control cabinet transmits the valve opening permission command to the communication circuit of the control cabinet;

[0061] 10) The communication circuit of the control cabinet receives signals and transmits them to the communication circuit of the fire extinguishing device;

[0062] 11) The fire extinguishing device communication circuit transmits the valve opening permission information from the control section to the MCU of the fire extinguishing device;

[0063] 12) The MCU of the fire extinguishing device activates the coil of the near-end valve relay, energizing it;

[0064] 21) The MCU of the fire extinguishing device activates the coil of the near-end valve relay and simultaneously activates the energy-saving circuit inside the device (the energy-saving circuit is normally in a dormant standby state).

[0065] 22) The energy-saving circuit of the device provides power to the valve power control circuit;

[0066] 23) The device valve power control circuit provides power to the common pin of the valve relay near the end;

[0067] 24) After the valve relay satisfies the information in steps 12) and 23), it outputs power to the electric valve device;

[0068] 24) The electric valve starts and water spraying begins.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A misfire-proof water extinguishing apparatus having a multi-stage joint confirmation capability, characterized by: The control cabinet circuit and the internal control circuit of the fire extinguishing device are provided; The control cabinet circuit is provided with a remote processor module, a first-level confirmation circuit and a second-level confirmation circuit, the first-level confirmation circuit is confirmed by human, and the second-level confirmation circuit is confirmed by the remote processor module and the first-level confirmation circuit; The remote processor module and the near-end processor module in the internal control circuit of the fire extinguishing device are provided with a third-level confirmation circuit, after the remote processor module receives the confirmation signals of the first-level confirmation circuit and the second-level confirmation circuit, the remote processor module sends a fire extinguishing signal to the near-end processor module in the internal control circuit of the fire extinguishing device through the third-level confirmation circuit; The internal control circuit of the fire extinguishing device is provided with the near-end processor module, an energy-saving circuit and a fourth-level confirmation circuit, the near-end processor module activates the energy-saving circuit according to the received fire extinguishing signal, and the fourth-level confirmation circuit is confirmed by the energy-saving circuit and the near-end processor module; The fourth-level confirmation circuit controls the opening and closing of the electric valve according to the final confirmation result.

2. The anti-spray water fire extinguishing apparatus with multi-stage joint confirmation capability according to claim 1, characterized in that: The first-level confirmation circuit is a valve electric permission / inhibition switch, the valve electric permission / inhibition switch is a manual switch, and the remote processor module is connected with the valve electric permission / inhibition switch to collect the opening and closing signals of the valve electric permission / inhibition switch.

3. The anti-spray water fire extinguishing apparatus with multi-stage joint confirmation capability according to claim 1 or 2, characterized in that: The second-level confirmation circuit is a remote valve relay, the remote processor module is connected with the relay coil of the remote valve relay, and whether to supply power to the relay coil of the remote valve relay is determined according to the collected opening and closing signals of the first-level confirmation circuit, thereby forming a half of the confirmation signals of the second-level confirmation circuit.

4. The anti-spray water fire extinguishing apparatus with multi-stage joint confirmation capability according to claim 3, characterized in that: The first-level confirmation circuit is connected with the remote valve relay to send a permission switch signal, the remote valve relay triggers the opening / closing action according to the received permission switch signal, sends the opening / closing signal to the processor module, forms the other half of the confirmation signals of the second-level confirmation circuit, and the remote processor module sends a fire extinguishing signal after receiving the complete confirmation signals of the second-level confirmation circuit.

5. The anti-spray water fire extinguishing apparatus with multi-stage joint confirmation capability according to claim 1 or 2 or 4, characterized in that: The third-level confirmation circuit is a communication circuit connected between the near-end processor module and the remote processor module.

6. The anti-spray water fire extinguishing apparatus with multi-stage joint confirmation capability according to claim 5, characterized in that: The fourth-level confirmation circuit includes a near-end valve power supply control circuit and a near-end valve relay, the energy-saving circuit is used for supplying power to the valve power supply control circuit, the valve power supply control circuit is connected with the near-end valve relay to send a permission switch signal, forms a half of the confirmation signals of the fourth-level confirmation circuit, the near-end processor module is connected with the relay coil of the near-end valve relay, and the relay coil of the near-end valve relay is supplied with power according to the received fire extinguishing signal, thereby forming the other half of the confirmation signals of the fourth-level confirmation circuit; The near-end valve relay is closed after receiving the complete confirmation signals of the fourth-level confirmation circuit, and drives the electric valve for spraying water to be opened.

7. The anti-spray water fire extinguishing apparatus with multi-stage joint confirmation capability according to claim 3, characterized in that: The remote valve relay is an entity relay assembly integrated in the control cabinet circuit.

8. The anti-spray water fire extinguishing apparatus with multi-stage joint confirmation capability according to claim 6, characterized in that: The near-end valve relay is an entity relay assembly integrated in the internal control circuit of the fire extinguishing device.

9. The anti-spray water fire extinguishing apparatus having multi-stage joint confirmation capability according to claim 1, characterized in that: The fire extinguishing device is internally integrated with a detection circuit, which is used for detecting fire and sending a fire extinguishing signal to a near-end processor module in the fire extinguishing device, and the near-end processor module in the fire extinguishing device sends the fire extinguishing signal to a far-end processor module in the control cabinet through a third confirmation circuit, as a starting trigger signal.

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