Intelligent heating and ventilation alarm control system used in catering processing room

Abstract

The utility model relates to the technical field of heating and ventilation alarm fire control, in particular to an intelligent heating and ventilation alarm control system used in a catering processing room, which comprises a processing room and a main flue, the processing room comprises a first processing room and a second processing room, flues are respectively arranged in the processing rooms, the flues are connected to the main flue, and the main flue is connected with the first processing room and the second processing room. The flue is provided with a check valve and a fireproof soft connector, an alarm mechanism, a fire extinguishing mechanism and a control mechanism are arranged in the processing room, the alarm mechanism comprises an alarm controller, and the control mechanism comprises a power box and a fire alarm linkage control box. The fire alarm linkage control box comprises a distribution box control circuit, a fireproof valve control circuit, a fireproof valve indicating lamp circuit and a gas valve control circuit. According to the intelligent heating and ventilation alarm control system used in the catering processing room, operation is easy, multi-mechanism fire prevention and control are achieved, a one-key linkage cutting device is additionally arranged in the catering processing room, and extinguishing of the initial fire is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of HVAC alarm fire control, in particular to an intelligent HVAC alarm control system used in a catering processing room. Background Art

[0002] In the prior art, a catering processing room is a place where natural gas is used for open flame operations, and there is a great fire hazard. In environments such as shopping malls, catering processing rooms involve HVAC facilities such as ventilation and exhaust ducts, especially when multiple exhaust fans are shared. Once a gas leak causes a fire, the fire can easily spread through the duct, causing the fire to spread rapidly, thereby causing huge economic losses and a large number of casualties. When a fire occurs in the processing room, it is very critical to quickly report the fire to the command room, cut off the power supply to the processing room, block the gas supply, cut off the exhaust fan and close the fire damper on the exhaust duct to prevent the fire from spreading. Therefore, it is particularly important to provide a HVAC alarm control system that is easy to operate and can link to cut off necessary equipment to ensure the safety of life and property. Utility Model Content

[0003] In order to improve the alarm efficiency, effectively control the spread of fire, prevent and control fire by multiple institutions, and add a one-button linkage cutting device to the catering processing room, the utility model provides an intelligent HVAC alarm control system used in the catering processing room.

[0004] In the first aspect, the utility model provides an intelligent HVAC alarm control system for use in a catering processing room, comprising a processing room and a main flue, wherein the processing room comprises a first processing room and a second processing room, wherein flues are respectively installed in the processing rooms, wherein the flues are connected to the main flue, wherein the main flue extends to the outdoor roof of the processing room, wherein an oil fume purifier and an oil fume exhaust fan are built-in in the outdoor roof part of the main flue, wherein a check valve and a first fireproof flexible joint are installed at the front end of the flue connected to the main flue, wherein a gas transmission pipeline, a gas stove, an oil fume purifier and an oil fume exhaust fan are arranged in the processing room, and wherein the oil fume purifier and the oil fume exhaust fan are installed on the flue.

[0005] Furthermore, an alarm mechanism is provided in the processing room, and the alarm mechanism includes an alarm controller, and the alarm controller is fixedly installed on the exit wall of the processing room. The alarm controller has a built-in manual switch circuit and a fire alarm button, and the alarm controller has a built-in indicator light. The alarm controller is connected to a fire signal line and is connected to a fire alarm center.

[0006] Furthermore, a fire extinguishing mechanism is provided in the processing room, and the fire extinguishing mechanism includes a fire blocking valve, a second fire protection flexible joint and a gas solenoid valve. The fire blocking valve is installed in the flue, the second fire protection flexible joint is installed on the flue and placed in front of the fire blocking valve, and the gas solenoid valve is installed on the gas transmission pipeline.

[0007] Furthermore, the processing room is provided with a control mechanism, which includes a power supply box and a fire alarm linkage control box, and the power supply box and the fire alarm linkage control box are fixedly installed on the exit wall of the processing room.

[0008] Furthermore, the power box has a built-in circuit breaker, a 24V switching power supply, a terminal block and an indicator light. The 24V switching power supply is connected to a 220V fire power supply. The alarm controller includes a passive normally open point K1 and a passive normally open point K2. The passive normally open point K1 is connected to the positive pole of the power box, and the passive normally open point K2 is connected to the terminal block.

[0009] Furthermore, the fire alarm linkage control box includes a distribution box control circuit, a fire damper control circuit, a fire damper indicator light circuit and a gas valve control circuit, and the distribution box control circuit, the fire damper control circuit, the fire damper indicator light circuit and the gas valve control circuit are respectively connected to the alarm controller and the power box.

[0010] Furthermore, the distribution box control circuit includes a distribution box 24V DC relay, a first 220V AC power supply circuit and a distribution box trip switch, the first 220V AC power supply circuit includes a first intermediate relay and a first 220V AC power supply circuit switch, the distribution box 24V DC relay responds to the current signal of the power box to close the first 220V AC power supply circuit switch, and the first intermediate relay responds to the 220V AC power supply to disconnect the distribution box trip switch.

[0011] Furthermore, the fire damper indicator light circuit includes a fire damper 24V DC relay, a fire damper indicator light and an indicator light switch, and the fire damper 24V DC relay responds to an electrical signal from a power supply box to close the fire damper indicator light switch.

[0012] Furthermore, the fire damper control circuit includes a fire damper, a fire damper 24V DC relay and a fire damper trip switch, the fire damper 24V DC relay responds to an electrical signal from a power supply box to pop open the fire damper trip switch, and the fire damper trip switch of the fire damper is energized.

[0013] Furthermore, the gas valve control circuit includes a gas solenoid valve, a gas valve 24V DC relay and an external control contact closure circuit, and the gas solenoid valve 24V DC relay responds to an electrical signal from a power supply box to close the external control contact closure circuit switch.

[0014] In summary, the utility model has the following beneficial technical effects:

[0015] The utility model discloses an intelligent HVAC alarm control system used in a catering processing room. Through the one-touch operation of pressing a "fire alarm button" on site, the operation is simple and easy to master for the processing room personnel. In addition, the utility model realizes a linkage system. In order to improve the alarm efficiency, effectively control the spread of fire, and realize multi-institutional fire prevention and control, a one-touch linkage cutting device is added to the catering processing room, thereby reducing casualties and property losses, and the fire alarm can be quickly reported to the command room. The monitoring room receives the fire alarm signal, determines the location and immediately notifies the fire brigade to rush to the scene and executes relevant plans. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural block diagram of an intelligent HVAC alarm control system used in a catering processing room according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of a main flue shared by multiple fume exhaust fans in an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of an intelligent HVAC alarm control system used in a processing room according to an embodiment of the utility model;

[0019] Figure 4 The utility model is a circuit diagram of a fire alarm linkage control box according to an embodiment of the utility model.

[0020] Figure 5 It is a system workflow diagram when a fire occurs in a catering processing room according to an embodiment of the utility model.

[0021] Among them, 1. Gas stove; 2. Gas solenoid valve; 3. Gas delivery pipeline; 4. Exhaust hood; 5. Flue; 6. Fume purifier; 7. Exhaust fan; 8. Second fire protection soft connection; 9. Fire blocking valve; 10. Check valve; 11. First fire protection soft connection; 12. Fire alarm linkage control box; 13. Power supply box; 14. Alarm controller. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Example 1

[0024] Reference Figure 1 and Figure 2, a fire alarm linkage system used in a catering processing room of the present embodiment comprises a processing room and a main flue, wherein the processing room comprises a first processing room and several processing rooms, wherein flues are respectively installed in the processing rooms, wherein the flues are connected to the main flue, wherein the main flue extends to the outdoor roof, wherein an oil fume purifier and an oil fume exhaust fan are built in the outdoor roof part of the main flue, wherein a check valve 10 and a first fireproof flexible joint 11 are installed at the front end of the flue connected to the main flue, wherein a gas transmission pipeline 3, a gas stove 1, an oil fume purifier 6 and an oil fume exhaust fan 7 are arranged in the first processing room, wherein the gas stove 1 is 900 mm above the ground, and the exhaust hood 4 is 2100 mm above the ground, and the oil fume purifier 6 and the oil fume exhaust fan 7 are installed on the flue 5, wherein the oil fume purifier 6 and the oil fume exhaust fan 7 are spaced 200 mm apart.

[0025] Reference Figure 3 An alarm mechanism is provided in the processing room, and the alarm mechanism includes an alarm controller 14. The alarm controller 14 is fixedly installed on the exit wall of the processing room. The alarm controller 14 has a built-in manual switch circuit and a fire alarm button. The alarm controller 14 has a built-in indicator light. The alarm controller 14 is connected to a fire signal line and is connected to a fire alarm center.

[0026] A fire extinguishing mechanism is provided in the processing room, and the fire extinguishing mechanism includes a fire blocking valve 9, a second fire flexible joint 8, a gas solenoid valve 2 and a check valve 10. The fire blocking valve 9 is installed in the flue, the second fire flexible joint 8 is installed on the flue and placed in front of the fire blocking valve 9, the gas solenoid valve 2 is installed on the gas transmission pipeline 3, the fire blocking valve is 320 mm thick, and the fire flexible joint is 300 mm away from the wall.

[0027] A control mechanism is provided in the processing room, and the control mechanism includes an alarm controller 14, a power box 12 and a fire alarm linkage control box 13. The alarm controller 14, the power box 12 and the fire alarm linkage control box 13 are fixedly installed on the exit wall of the processing room, and the alarm controller is 1500mm from the ground.

[0028] Reference Figure 4 The power box has a built-in circuit breaker, a 24V switching power supply, a terminal block and an indicator light. The 24V switching power supply is connected to a 220V fire power supply. The alarm controller 14 includes a passive normally open point K1 and a passive normally open point K2. The passive normally open point K1 is connected to the positive pole of the power box, and the passive normally open point K2 is connected to the terminal block.

[0029] The fire alarm linkage control box 13 includes a distribution box control circuit, a fire damper control circuit, a fire damper indicator light circuit and a gas valve control circuit, and the distribution box control circuit, the fire damper control circuit, the fire damper indicator light circuit and the gas valve control circuit are respectively connected to the alarm controller 14 and the power box 12.

[0030] The distribution box control circuit includes a 24V DC relay of the distribution box, a first 220V AC power supply circuit and a distribution box trip switch, the first 220V AC power supply circuit includes a first intermediate relay and a first 220V AC power supply circuit switch, the 24V DC relay of the distribution box responds to the current signal of the power box to close the first 220V AC power supply circuit switch, and the first intermediate relay responds to the 220V AC power supply to disconnect the distribution box trip switch.

[0031] The fire damper indicator light circuit includes a fire damper 24V DC relay, a fire damper indicator light and an indicator light switch. The fire damper 24V DC relay responds to an electrical signal from a power supply box to close the fire damper indicator light switch.

[0032] The fire damper control circuit includes a fire damper, a fire damper 24V DC relay and a fire damper trip switch. The fire damper 24V DC relay responds to an electrical signal from a power supply box to pop open the fire damper trip switch, and the fire damper trip switch of the fire damper is energized.

[0033] The gas valve control circuit includes a gas solenoid valve, a gas valve 24V DC relay and an external control contact closing circuit. The gas solenoid valve 24V DC relay responds to an electrical signal from a power supply box to close the external control contact closing circuit switch.

[0034] like Figure 5 As shown, when a fire occurs in the catering processing room, the on-site personnel press the fire alarm button to automatically cut off the non-fire-fighting power, stop the exhaust fan, close the exhaust fire damper, and cut off the gas solenoid valve, and at the same time alarm the fire control room. Through one-click operation, it can effectively prevent the fire from spreading through the fume duct and avoid the fire causing a short circuit in the electrical circuit to cause electric shock. At the same time, it can prevent gas leakage from causing the fire to spread and cause an explosion, which helps to extinguish the initial fire.

[0035] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An intelligent HVAC alarm control system used in a catering processing room. It is characterized in that It includes a processing room and a main flue, the processing room includes a first processing room and a second processing room, flues are installed in the processing rooms respectively, the flue is connected to the main flue, the main flue extends to the outdoor roof of the processing room, the main flue has a built-in oil fume purifier and an oil fume exhaust fan in the outdoor roof part, a check valve and a first fireproof flexible joint are installed at the front end of the flue connected to the main flue, a gas transmission pipeline, a gas stove, an oil fume purifier and an oil fume exhaust fan are arranged in the processing room, and the oil fume purifier and the oil fume exhaust fan are installed on the flue.

2. According to claim 1, an intelligent HVAC alarm control system used in a catering processing room, It is characterized in that An alarm mechanism is provided in the processing room, and the alarm mechanism includes an alarm controller, and the alarm controller is fixedly mounted on the exit wall of the processing room. The alarm controller has a built-in manual switch circuit and a fire alarm button, and has a built-in indicator light. The alarm controller is connected to a fire signal line and is connected to a fire alarm center.

3. According to claim 1, an intelligent HVAC alarm control system used in a catering processing room, It is characterized in that A fire extinguishing mechanism is provided in the processing room, and the fire extinguishing mechanism includes a fire blocking valve, a second fire protection flexible joint and a gas solenoid valve. The fire blocking valve is installed in the flue, the second fire protection flexible joint is installed on the flue and placed in front of the fire blocking valve, and the gas solenoid valve is installed on the gas transmission pipeline.

4. According to claim 1, an intelligent HVAC alarm control system used in a catering processing room, It is characterized in that The processing room is provided with a control mechanism, which includes a power supply box and a fire alarm linkage control box, and the power supply box and the fire alarm linkage control box are fixedly installed on the exit wall of the processing room.

5. According to claim 2 or 4, an intelligent HVAC alarm control system used in a catering processing room, It is characterized in that The power box has a built-in circuit breaker, a 24V switching power supply, a terminal block and an indicator light. The 24V switching power supply is connected to a 220V fire power supply. The alarm controller includes a passive normally open point K1 and a passive normally open point K2. The passive normally open point K1 is connected to the positive pole of the power box, and the passive normally open point K2 is connected to the terminal block.

6. According to claim 4, an intelligent HVAC alarm control system used in a catering processing room, It is characterized in that The fire alarm linkage control box includes a distribution box control circuit, a fire damper control circuit, a fire damper indicator light circuit and a gas valve control circuit, and the distribution box control circuit, the fire damper control circuit, the fire damper indicator light circuit and the gas valve control circuit are respectively connected to the alarm controller and the power box.

7. According to claim 6, an intelligent HVAC alarm control system used in a catering processing room, It is characterized in that The distribution box control circuit includes a 24V DC relay of the distribution box, a first 220V AC power supply circuit and a distribution box trip switch, the first 220V AC power supply circuit includes a first intermediate relay and a first 220V AC power supply circuit switch, the 24V DC relay of the distribution box responds to the current signal of the power box to close the first 220V AC power supply circuit switch, and the first intermediate relay responds to the 220V AC power supply to disconnect the distribution box trip switch.

8. According to claim 6, an intelligent HVAC alarm control system used in a catering processing room, It is characterized in that The fire damper indicator light circuit includes a fire damper 24V DC relay, a fire damper indicator light and an indicator light switch. The fire damper 24V DC relay responds to an electrical signal from a power supply box to close the fire damper indicator light switch.

9. According to claim 6, an intelligent HVAC alarm control system used in a catering processing room, It is characterized in that The fire damper control circuit includes a fire damper, a fire damper 24V DC relay and a fire damper trip switch. The fire damper 24V DC relay responds to an electrical signal from a power supply box to pop open the fire damper trip switch, and the fire damper trip switch of the fire damper is energized.

10. According to claim 6, an intelligent HVAC alarm control system used in a catering processing room, It is characterized in that The gas valve control circuit includes a gas solenoid valve, a gas valve 24V DC relay and an external control contact closing circuit. The gas solenoid valve 24V DC relay responds to an electrical signal from a power supply box to close the external control contact closing circuit switch.

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