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

Abstract

The invention 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] The present invention relates to the technical field of fire fighting, and in particular to a fire extinguishing device with multi-stage joint confirmation capability and capable of preventing mis-spraying of water. Background Art

[0002] In the modern industrial system, fire safety is one of the most important safety tasks and requires the special attention of all parties involved in production.

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

[0004] Current fire water cannons mainly have the following two capabilities. The first is to quickly determine whether a fire has occurred in the current environment through a combination of infrared, ultraviolet and other sensors installed on the fire water cannon. The second is to quickly drive the fire water cannon to work according to the location of the fire, quickly extinguish the fire point, and prevent further fire accidents.

[0005] Since the above process requires automated operation, the control valve of the fire water monitor usually adopts an electrically controlled valve. Fire water monitor products are key facilities that operate for a long time and cannot be interrupted. Due to external factors such as long-term power supply and circuit environment, there is a small probability that the fire water monitor will cause abnormal conditions such as short circuit or communication interruption due to water corrosion, foreign body intrusion, etc., causing the control valve circuit to temporarily lose control and causing the fire water monitor to spray water by mistake.

[0006] The accidental spraying of water by a fire monitor can easily lead to production accidents, which can cause stored products to be soaked in water and discarded, or even directly lead to production interruptions.

[0007] Therefore, for the problem of accidental water spraying by fire monitors, a solution to prevent accidental spraying needs to be provided to solve the problem.

[0008] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the invention

[0009] The purpose of the present invention is to address the deficiencies in the prior art and to provide a fire extinguishing device that strictly controls the power-on logic of the electric valve through multi-level confirmation capabilities and joint confirmation means, significantly reduces the possibility of accidental water spraying caused by circuit failure, and has excellent accidental water spraying prevention capabilities and multi-level joint confirmation capabilities.

[0010] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is: a fire extinguishing device with multi-level joint confirmation capability to prevent mis-spraying, including a control cabinet circuit and an internal control circuit of the fire extinguishing device; The control cabinet circuit is provided 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; A three-level confirmation circuit is provided between the remote processor module and the proximal processor module in the internal control circuit of the fire extinguishing device. After receiving the confirmation signals from the first confirmation circuit and the second confirmation circuit, the remote processor module sends a fire extinguishing signal to the proximal processor module in the internal control circuit of the fire extinguishing device through the three-level confirmation circuit. The fire extinguishing device internal control circuit is provided with the proximal processor module, the energy-saving circuit and the four-level confirmation circuit. The proximal processor module activates the energy-saving circuit according to the received fire extinguishing signal. The four-level confirmation circuit is confirmed by the energy-saving circuit and the proximal processor module. The four-stage confirmation circuit controls the opening and closing of the electric valve for water distribution according to the final confirmation result.

[0011] Based on the above, the first-level confirmation circuit is a valve electrical permission / prohibition switch, the valve electrical permission / prohibition switch is a manual switch, and the remote processor module is connected to the valve electrical permission / prohibition switch to collect the opening and closing signals of the valve electrical permission / prohibition switch.

[0012] Based on the above, the secondary confirmation circuit is a remote valve relay, and the remote processor module is connected to the relay coil of the remote valve relay. It determines whether to supply power to the relay coil of the remote valve relay according to the collected opening and closing signals of the primary confirmation circuit, thereby constituting half of the confirmation signal of the secondary confirmation circuit.

[0013] Based on the above, the first-level confirmation circuit is connected to the remote valve relay for sending a switch permission signal. The remote valve relay triggers the opening / closing action according to the received switch permission signal, and sends the opening / closing signal to the processor module, constituting the other half of the confirmation signal of the second-level confirmation circuit. After receiving the confirmation signal of the complete second-level confirmation circuit, the remote controller module sends a fire extinguishing signal.

[0014] 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.

[0015] Based on the above, the four-level confirmation circuit includes a proximal valve power supply control circuit and a proximal valve relay, the energy-saving power supply circuit is used to supply power to the valve power supply control circuit; the valve power supply control circuit is connected to the proximal valve relay to send a switch permission signal, constituting half of the confirmation signal of the four-level confirmation circuit; the proximal processor module is connected to the relay coil of the proximal valve relay, and supplies power to the relay coil of the proximal valve relay according to the received fire extinguishing signal, constituting the other half of the confirmation signal of the four-level confirmation circuit; The proximal valve relay closes after receiving the confirmation signal from the complete four-level confirmation circuit, and drives the electric valve that controls the water spray to open.

[0016] Based on the above, the remote valve relay is a physical relay component integrated in the control cabinet circuit.

[0017] Based on the above, the proximal valve relay is a physical relay component integrated into the internal control circuit of the fire extinguishing device.

[0018] Based on the above, the fire extinguishing device has an integrated detection circuit, which is used to detect the fire and send a fire extinguishing signal to the proximal processor module inside the fire extinguishing device. The proximal processor module inside the fire extinguishing device sends the fire extinguishing signal to the remote processor module in the control cabinet through the third confirmation circuit as a starting trigger signal.

[0019] Compared with the prior art, the present invention has outstanding substantial features and significant progress. Specifically, starting from the circuit design of the existing fire extinguishing device, the present invention keeps the relevant circuits controlling the water spraying electric valve in a power-off state at all times during the non-fire extinguishing period, and at the same time, a four-level confirmation circuit is arranged around the power-off proximal valve relay, wherein the two-level confirmation circuit is arranged at one end of the control cabinet, the three-level confirmation circuit is arranged at the communication end, and the four-level confirmation circuit is arranged at the proximal valve relay, forming a multi-level confirmation, and a joint confirmation control logic is arranged in each level of the confirmation circuit, so that the logic chain of the power-on process of the proximal valve relay is finally lengthened, and the additional confirmation nodes are significantly increased, thereby avoiding the isolation of individual node problems caused by individual circuit short circuits, rust, communication interruptions, etc. at the node position, and being unable to continue to transmit signals, and finally ensuring that the fire extinguishing device will not spray water by mistake, and significantly improving the fire extinguishing device's ability to prevent mistaken spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The invention discloses a circuit control principle diagram of a fire extinguishing device for preventing mis-spraying of water with a multi-stage joint confirmation capability. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described in detail below through specific implementation methods.

[0022] like Figure 1 As shown, a fire extinguishing device with multi-stage joint confirmation capability and anti-misfire water spraying includes a control cabinet circuit and an internal control circuit of the fire extinguishing device.

[0023] The control cabinet circuit is provided with a remote processor module, a primary confirmation circuit and a secondary confirmation circuit, and the remote processor module is an MCU.

[0024] The first-level confirmation circuit is manually confirmed. In the present embodiment, the first-level confirmation circuit is a valve electrical allow / prohibit switch, and the valve electrical allow / prohibit switch is a manual switch. The remote processor module is connected to the valve electrical allow / prohibit switch to collect the opening and closing signals of the valve electrical allow / prohibit switch.

[0025] The valve electrical permission / prohibition switch is an existing switch, and its existing function is: when the fire extinguishing device detects ignition and sounds an alarm, the on-site staff controls the valve electrical permission / prohibition switch to close, which means that there is indeed a fire, so the first-level confirmation circuit is the basic confirmation circuit that constitutes the water spraying action.

[0026] The secondary confirmation circuit is 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 in the control cabinet circuit. It is not responsible for any other work and is only used for secondary confirmation. Specifically, under normal circumstances, the remote valve relay is in a power-off 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 collected start and close signals of the primary confirmation circuit. In other words, the remote relay can only be powered on and run when the valve power permission / prohibition switch is closed. The power-on signal constitutes half of the confirmation signal of the secondary confirmation circuit.

[0027] At the same time, the first-level confirmation circuit, that is, the valve electrical permission / prohibition switch is connected to the action end of the remote valve relay, which is used to send a permission switch signal. The remote valve relay triggers the opening / closing action according to the received permission switch signal, and sends the opening / closing signal to the processor module, constituting the other half of the confirmation signal of the second-level confirmation circuit.

[0028] To elaborate, when the valve allow / prohibit switch is closed, the remote processor module controls the coil of the remote valve relay to energize, and then waits for further signals from the valve electrical allow / prohibit switch. When the valve electrical allow / prohibit switch is confirmed to be closed, it will trigger the remote valve relay to change its open / close state, forming the other half of the confirmation signal, thus forming a full confirmation.

[0029] Under this design concept, the false triggering of the acquisition circuit of the valve permission / prohibition switch and the false triggering of the execution circuit of the valve permission / prohibition switch can be prevented, and the false triggering situation can be isolated.

[0030] The remote controller module sends out a fire extinguishing signal after receiving the confirmation signal of the complete secondary confirmation circuit.

[0031] A three-level confirmation circuit is provided between the remote processor module and the proximal processor module in the internal control circuit of the fire extinguishing device. The three-level confirmation circuit is a communication circuit connected between the proximal processor module and the remote processor module.

[0032] The communication circuit is an existing circuit and is used as one of the links of the confirmation circuit.

[0033] In the starting stage, the fire extinguishing device has an integrated detection circuit, which is used to detect the fire and send a fire extinguishing signal to the proximal processor module inside the fire extinguishing device. The proximal processor module inside the fire extinguishing device sends the fire extinguishing signal to the remote processor module in the control cabinet through the third confirmation circuit as a starting trigger signal.

[0034] After receiving the confirmation signals from the primary confirmation circuit and the secondary confirmation circuit, the remote processor module sends a fire extinguishing signal to the local processor module of the internal control circuit of the fire extinguishing device through the tertiary confirmation circuit.

[0035] The internal control circuit of the fire extinguishing device is provided with the proximal processor module, the energy-saving circuit and the four-level confirmation circuit.

[0036] The energy-saving circuit is a long-term dormant circuit, and its dormancy purpose is to avoid circuit failures causing false triggering of downstream circuits. It is activated only when water spraying is required, that is, when a fire extinguishing signal is received, it is activated by the proximal processor module. Specifically, the proximal processor module activates the energy-saving circuit according to the received fire extinguishing signal.

[0037] The four-level confirmation circuit is jointly confirmed by the energy-saving circuit and the proximal processor module; the four-level confirmation circuit controls the opening and closing of the electric valve for water distribution according to the final confirmation result.

[0038] Specifically, in this embodiment, the four-level confirmation circuit includes a proximal valve power supply control circuit and a proximal valve relay.

[0039] Among them, the energy-saving power supply circuit is used to power the valve power supply control circuit; that is, the valve power supply control circuit can only be powered on and started when it receives a fire extinguishing signal. Under normal conditions, it is always in a power-off state, and it cannot be falsely triggered due to short circuits, rust and other problems.

[0040] The setting mode of the proximal valve relay is similar to that of the remote relay. It is a physical relay component integrated in the internal control circuit of the fire extinguishing device. It is not energized under normal circumstances, but is used as an on / off switch to trigger the opening and closing of the electric valve.

[0041] The proximal processor module is connected to the relay coil of the proximal valve relay, and supplies power to the relay coil of the proximal valve relay according to the received fire extinguishing signal, thereby forming the other half confirmation signal of the four-level confirmation circuit.

[0042] That is to say, only when a fire extinguishing signal is received, the proximal valve relay can be energized under the control of the proximal processor module, and then wait for the triggering of the action signal.

[0043] The valve power supply control circuit is connected to the proximal valve relay for sending a switch permission signal, constituting a half confirmation signal of the four-level confirmation circuit.

[0044] Specifically, the valve power supply control circuit essentially supplies power to the electric valve of the sprinkler. At this time, the control circuit of the electric valve is energized and in a waiting state. The energization signal is also synchronously sent to the proximal valve relay. After the proximal valve relay receives the energization signal of the electric valve, it can be triggered, and the opening and closing state changes, forming the final electric valve opening and closing signal.

[0045] In general, the proximal valve relay is closed after receiving the confirmation signal of the complete four-level confirmation circuit, and drives the electric valve that controls the water spray to open.

[0046] Combined with Figure 1 , the whole workflow is described: 1) When the device detection circuit detects a fire signal, it transmits the information to the MCU main control of the fire extinguishing device; 2) The MCU of the fire extinguishing device transmits information to the communication circuit; 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 at the same time; 4) The communication circuit of the control cabinet provides information to the control part MCU; 5) The MCU of the control cabinet detects whether the valve electrical permission / prohibition switch is in the valve opening permission state; 6) The valve electrical permission / prohibition switch transmits the signal in the permission state to the remote valve relay; 7) At the same time, the MCU of the control cabinet starts the coil of the remote valve relay to energize it; 8) General Figure 1 In 6.7, two valve opening information is transmitted to the MCU of the control cabinet; 9) The MCU of the control cabinet transmits the valve opening instruction to the communication circuit of the control cabinet; 10) The communication circuit of the control cabinet receives the signal and transmits it to the communication circuit of the fire extinguishing device; 11) The fire extinguishing device communication circuit transmits the valve opening permission information of the control part to the MCU of the fire extinguishing device; 12) The MCU of the fire extinguishing device starts the coil of the proximal valve relay to energize it; 21) The MCU of the fire extinguishing device starts the coil of the proximal valve relay and simultaneously starts the energy-saving circuit inside the device (the energy-saving circuit is usually in a dormant standby state); 22) The energy-saving circuit of the device provides power to the valve power control circuit; 23) The device valve power supply control circuit provides power to the common pin of the proximal valve relay; 24) The valve relay outputs power to the electric valve device after meeting the information in steps 12) and 23); 24) The electric valve starts to spray water.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A fire extinguishing device with multi-level joint confirmation capability to prevent mis-spraying, characterized in that: Including control cabinet circuit and internal control circuit of fire extinguishing device; The control cabinet circuit is provided 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; A three-level confirmation circuit is provided between the remote processor module and the proximal processor module in the internal control circuit of the fire extinguishing device. After receiving the confirmation signals from the first confirmation circuit and the second confirmation circuit, the remote processor module sends a fire extinguishing signal to the proximal processor module in the internal control circuit of the fire extinguishing device through the three-level confirmation circuit. The fire extinguishing device internal control circuit is provided with the proximal processor module, the energy-saving circuit and the four-level confirmation circuit. The proximal processor module activates the energy-saving circuit according to the received fire extinguishing signal. The four-level confirmation circuit is confirmed by the energy-saving circuit and the proximal processor module. The four-stage confirmation circuit controls the opening and closing of the electric valve for water distribution according to the final confirmation result.

2. The fire extinguishing device with multi-stage joint confirmation capability to prevent mis-spraying according to claim 1, characterized in that: The first-level confirmation circuit is a valve electrical permission / prohibition switch, the valve electrical permission / prohibition switch is a manual switch, and the remote processor module is connected to the valve electrical permission / prohibition switch to collect the opening and closing signals of the valve electrical permission / prohibition switch.

3. The fire extinguishing device with multi-stage joint confirmation capability and preventing accidental water spraying according to claim 1 or 2, characterized in that: The secondary confirmation circuit is a remote valve relay, and the remote processor module is connected to the relay coil of the remote valve relay. It determines whether to supply power to the relay coil of the remote valve relay based on the collected opening and closing signals of the primary confirmation circuit, thereby constituting half of the confirmation signal of the secondary confirmation circuit.

4. The fire extinguishing device with multi-stage joint confirmation capability for preventing mis-spraying of water according to claim 3, characterized in that: The first-level confirmation circuit is connected to the remote valve relay for sending a switch permission signal. The remote valve relay triggers the opening / closing action according to the received switch permission signal, and sends the opening / closing signal to the processor module, constituting the other half of the confirmation signal of the second-level confirmation circuit. After receiving the confirmation signal of the complete second-level confirmation circuit, the remote controller module sends a fire extinguishing signal.

5. The fire extinguishing device with multi-stage joint confirmation capability and preventing mis-spraying according to claim 1, 2 or 4, characterized in that: The three-level confirmation circuit is a communication circuit connected between the near-end processor module and the far-end processor module.

6. The fire extinguishing device with multi-stage joint confirmation capability and preventing mis-spraying according to claim 5, characterized in that: The four-level confirmation circuit includes a proximal valve power supply control circuit and a proximal valve relay, and the energy-saving power supply circuit is used to supply power to the valve power supply control circuit; the valve power supply control circuit is connected to the proximal valve relay to send a switch permission signal, constituting half of the confirmation signal of the four-level confirmation circuit; the proximal processor module is connected to the relay coil of the proximal valve relay, and supplies power to the relay coil of the proximal valve relay according to the received fire extinguishing signal, constituting the other half of the confirmation signal of the four-level confirmation circuit; The proximal valve relay closes after receiving the confirmation signal from the complete four-level confirmation circuit, and drives the electric valve that controls the water spray to open.

7. The fire extinguishing device with multi-stage joint confirmation capability and preventing mis-spraying according to claim 3 is characterized in that: The remote valve relay is a physical relay component integrated into the control cabinet circuit.

8. The fire extinguishing device with multi-stage joint confirmation capability and preventing mis-spraying according to claim 6, characterized in that: The proximal valve relay is a physical relay component integrated into the internal control circuit of the fire extinguishing device.

9. The fire extinguishing device with multi-stage joint confirmation capability and preventing mis-spraying according to claim 1, characterized in that: The fire extinguishing device has an integrated detection circuit inside, which is used to detect fire and send a fire extinguishing signal to a proximal processor module inside the fire extinguishing device. The proximal processor module inside the fire extinguishing device sends the fire extinguishing signal to a remote processor module in the control cabinet through a third confirmation circuit as a starting trigger signal.

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