Flue cleaning and cooling control module of kitchen equipment fire extinguishing device

Abstract

A flue cleaning and cooling control module of a kitchen equipment fire extinguishing device comprises a control device body, a fire extinguisher set, a starting pipeline and a fire extinguishing agent main pipeline, the control device body comprises a shell, a PLC, a driving gas cylinder, a control panel, a mechanical control valve, a pressure reducing valve and an electromagnetic valve, the driving gas cylinder is arranged on the right side of the PLC, and the mechanical control valve is arranged at the top end of the driving gas cylinder; a gas outlet of the mechanical control valve is connected with a gas inlet of the fire extinguisher set through a gas conveying pipeline, a gas outlet of the fire extinguisher set is communicated with a fire extinguishing agent main pipeline through a pipeline, and a plurality of spraying devices are arranged on the cooking bench fire extinguishing agent pipeline at equal intervals. A plurality of temperature sensing releasing mechanisms are arranged on the starting pipeline at equal intervals, an inlet of the fire extinguishing agent main pipeline is communicated with a tap water pipe network, and a manual starting device is arranged between the fire extinguisher set and the control device body. And through the arrangement of the temperature sensing release mechanism, the detection of fire behavior and the starting of the whole fire fighting device can be safely and reliably completed.

Description

Technical Field

[0001] The utility model relates to the field of fire safety, in particular to a flue cleaning and cooling control module of a kitchen equipment fire extinguishing device. Background Art

[0002] According to the relevant requirements of relevant laws and regulations, the oil fume duct needs to be cleaned at least once a quarter. If there are multiple catering units and venues in the building, the property and the tenants should clearly define their respective responsibilities and be responsible for cleaning the main pipe and branch pipes regularly. The existing oil fume duct cleaning technology can be divided into two types. One is to ask special oil fume duct cleaners to clean it manually, and the other is to clean it with a cleaning robot. The former is expensive, and the environment in the oil fume duct is harsh, with grease all over and small space. It is necessary to use a shovel to scrape off the accumulated grease little by little, which has a significant impact on the health of the cleaners; although the latter has achieved automation, it is limited by the size of the cleaning robot itself, the power of the water gun is limited, and it cannot remove the grease accumulated for a long time. In addition, the cleaning robot requires special personnel to operate, and the catering unit still needs to spend an additional amount of money to hire relevant operators.

[0003] At present, the Chinese patent with the authorization announcement number CN207371025U discloses a kitchen fire extinguishing device that can automatically clean the flue, which includes a control panel and a first temperature sensor, a second temperature sensor, a temperature switch, a gas detector, a pressure sensor, a first water pump, and a second water pump connected to the control panel. The control panel is integrated with a microcontroller, and the microcontroller includes a timer module and a timer module. The utility model can not only clean the grease from the flue, but also spray the fire extinguishing agent to extinguish the fire, that is, the flue is cleaned and the fire is extinguished, which effectively prevents the occurrence of fire, and can also detect the fire through the temperature switch and the temperature sensor, and timely extinguish the fire on the stove and the flue, effectively reducing the degree of harm caused by kitchen fires.

[0004] The above-mentioned existing technical solutions have the following defects: the design is slightly redundant, and the temperature sensor is exposed to heavy kitchen fumes, and the protective tube and the pull plate have too much grease, which may cause poor insulation between the thermoelectric dipole and the furnace wall. Odorants are usually added to the gas to remind people of gas leaks. Utility Model Content

[0005] The utility model aims to provide a flue cleaning and cooling control module for a kitchen equipment fire extinguishing device to solve the problems existing in the above-mentioned prior art.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A kitchen equipment fire extinguishing device flue cleaning and cooling control module, comprising a control device body, a fire extinguisher group, a starter pipeline and a fire extinguishing agent main pipeline, wherein the control device body comprises a housing, a PLC, a drive gas cylinder, a control panel, a mechanical control valve, a pressure reducing valve and a solenoid valve;

[0008] The housing is assembled from a top plate, a bottom plate, a front plate, a rear plate, a left plate and a right plate;

[0009] A control panel is provided on the front plate, a PLC is provided on the inner top of the bottom plate, a driving gas cylinder is provided on the right side of the PLC, the driving gas cylinder is detachably mounted on the inner side of the rear plate, a mechanical control valve is provided on the top of the driving gas cylinder, a dashboard is provided in front of the mechanical control valve, an air outlet of the mechanical control valve is connected to an air inlet of a fire extinguisher group through a gas pipeline, a pressure reducing valve is provided on the pipeline between the mechanical control valve and the fire extinguisher group, the air inlet and air outlet of the fire extinguisher group are coaxially arranged, and the air outlet of the fire extinguisher group is connected to a main pipeline of a fire extinguishing agent through a pipeline;

[0010] The fire extinguishing agent main pipeline includes a flue fire extinguishing agent pipeline and a stove fire extinguishing agent pipeline, a plurality of injection devices are arranged at equal intervals on the stove fire extinguishing agent pipeline, a starter pipeline is arranged in parallel on the stove fire extinguishing agent pipeline, a plurality of temperature-sensitive release mechanisms are arranged at equal intervals on the starter pipeline, a plurality of injection devices are arranged at equal intervals on the flue fire extinguishing agent pipeline, and the inlet of the fire extinguishing agent main pipeline is connected to the tap water network;

[0011] A manual starting device is provided between the fire extinguisher group and the control device body, and the manual starting device is electrically connected to the PLC through electric wires.

[0012] By adopting the above technical scheme, the temperature-sensing release device can detect in real time whether the temperature of the open flame on the stove exceeds the safe temperature. If it exceeds, the temperature-sensing alloy sheet will melt immediately, and the wire rope will also loosen accordingly. This detection method relies solely on the mechanical structure, which is simple and reliable and will not fail due to oil fume problems. At the same time, a manual starting device is also provided. Even if a failure occurs and it cannot be triggered normally, the manual starting device can be immediately pressed to open the entire fire protection system. The manual starting device can also be used to start when the oil fume pipe is cleaned regularly. The device is arranged outside the control device body to prevent oil fume from entering the control device body.

[0013] In a further embodiment, a plurality of indicator lights are evenly arranged on the control panel, an observation hole is arranged on the right side of the indicator lights, a display screen is arranged below the observation hole, and the display screen and the indicator lights are electrically connected to the PLC through wires.

[0014] By adopting the above technical solution, the process value and the set target value are displayed on the display screen, and the pressure status of the driving gas cylinder can be detected at any time. Through the observation hole, the driving gas cylinder instrument panel set on the surface of the mechanical control valve can be clearly seen, so that timely adjustment and replacement can be made when the driving gas cylinder has an abnormality.

[0015] In a further embodiment, the temperature-sensitive release mechanism is composed of a mechanism body, a temperature-sensitive alloy sheet and a steel wire rope, the steel wire rope is connected to a fire signal release device, and the fire signal release device is electrically connected to the PLC through an electric wire.

[0016] By adopting the above technical solution, the fire signal release device is responsible for detecting the travel of the wire rope. Under normal conditions, the wire ropes are connected by temperature-sensitive alloy sheets and are in a taut state. When the temperature-sensitive alloy sheets melt due to long-term high-temperature radiation on the stove that exceeds its tolerance range, the wire rope is loosened, and the fire signal release device transmits the signal back to the PLC.

[0017] In a further embodiment, the injection device consists of a nozzle body and an X-shaped blade, the X-shaped blade is bolted to the nozzle body, the nozzle of the injection device is arranged parallel to the flue fire extinguishing agent pipeline, and the nozzle of the injection device is arranged vertically to the stove fire extinguishing agent pipeline.

[0018] By adopting the above technical solution, the X-shaped blades can change the shape of the water flowing out of the injection device. In conjunction with the parallel injection devices, the chemical liquid or tap water used for cleaning can cover the entire oil fume duct in a cone shape, thereby enhancing the cleaning effect. The fire on the stove can be extinguished through the vertically arranged injection device. The same cone-shaped fire extinguishing agent or tap water can quickly extinguish the fire source and prevent it from re-igniting.

[0019] In a further embodiment, a damping hinge is provided on the right side of the front plate, the front plate is hingedly fixed to the right plate, and a rebounder is provided on the inner side surface of the left side of the front plate.

[0020] By adopting the above technical solution, the kitchen is more fume-prone, and the objects placed therein are often covered with grease. In daily cleaning, the flat cabinet surface is undoubtedly easier to wipe than the built-in handle, and the control device housing is not often opened, so the rebounder can play a role for a long time.

[0021] In a further embodiment, a water inlet is provided on the fire extinguishing agent main pipeline, the water inlet is connected to a water outlet of a chemical liquid tank through a pipeline, and a chemical liquid pump is provided between the water inlet and the chemical liquid tank.

[0022] By adopting the above technical solution, tap water is not effective enough to clean grease, and caustic soda at a certain concentration can react better with grease. Therefore, a special chemical liquid cleaning tank is set up. Even if caustic soda with a concentration of about 30% leaks accidentally, it will not harm the human body, and direct skin contact will only cause peeling, so safety is also guaranteed.

[0023] In summary, the utility model has the following beneficial effects:

[0024] 1. Through the setting of the temperature-sensing release mechanism, the temperature of the stove can be detected by relying on the physical properties of the temperature-sensitive alloy sheet. It operates by relying on a purely mechanical structure and will not be triggered by mistake or cannot be triggered due to sensor failure, thus improving the reliability of the fire extinguishing device;

[0025] 2. Through the setting of the manual starting device, when the temperature-sensitive release mechanism cannot operate normally, the fire extinguishing device can be manually started by the staff, or when the flue needs to be cleaned, the temperature-sensitive release mechanism can be flexibly bypassed to directly release caustic soda to clean the grease in the flue;

[0026] 3. Through the setting of the nozzle body and the X-shaped blades, the spray shape can be changed, the flow distribution can be even, and the cleaning and fire extinguishing effects can be enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the structure inside the control device body in the utility model;

[0029] Figure 3 It is an internal schematic diagram used to reflect the structure of the injection device in the utility model.

[0030] In the figure, 1. control device body; 11. shell; 111. top plate; 112. bottom plate; 113. front plate; 1131. indicator light; 1132. observation hole; 1133. display screen; 1134. damping hinge; 1135. rebounder; 114. back plate; 115. left plate; 116. right plate; 12. PLC; 13. driving gas cylinder; 14. control panel; 15. mechanical control valve; 16. pressure reducing valve; 17. solenoid valve; 2. fire extinguisher group; 3. starting pipeline; 31. temperature sensing release mechanism; 32. fire signal release device; 4. fire extinguishing agent main pipeline; 41. flue fire extinguishing agent pipeline; 42. stove fire extinguishing agent pipeline; 43. injection device; 431. nozzle body; 432. X-shaped blade; 5. manual starting device. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0032] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1 In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] Example:

[0034] like Figure 1-2As shown, a flue cleaning and cooling control module of a kitchen equipment fire extinguishing device includes a control device body 1, a fire extinguisher group 2, a starting pipeline 3 and a fire extinguishing agent main pipeline 4. The control device body 1 includes a shell 11, a PLC 12, a driving gas cylinder 13, a control panel 14, a mechanical control valve 15, a pressure reducing valve 16 and a solenoid valve 17. The shell 11 is assembled by a top plate 111, a bottom plate 112, a front plate 113, a rear plate 114, a left plate 115 and a right plate 116. A damping hinge 1134 is provided on the right side of the front plate 113. The front plate 113 is hinged and fixed to the right plate 116. The inner side of the left side of the front plate 113 is provided with a rebounder 11 35, a control panel 14 is arranged on the front plate 113, a plurality of indicator lights 1131 are evenly arranged on the control panel 14, an observation hole 1132 is arranged on the right side of the indicator light 1131, a display screen 1133 is arranged below the observation hole 1132, a PLC 12 is arranged on the inner top of the bottom plate 112, the display screen 1133 and the indicator light 1131 are electrically connected to the PLC 12 through wires, a driving gas cylinder 13 is arranged on the right side of the PLC 12, the driving gas cylinder 13 can be detachably mounted on the inner side of the rear plate 114, a mechanical control valve 15 is arranged on the top of the driving gas cylinder 13, a dashboard is arranged in front of the mechanical control valve 15, and a mechanical The air outlet of the control valve 15 is connected to the air inlet of the fire extinguisher group 2 through a gas pipeline. A pressure reducing valve 16 is arranged on the pipeline between the mechanical control valve 15 and the fire extinguisher group 2. The air inlet and the air outlet of the fire extinguisher group 2 are arranged coaxially. The air outlet of the fire extinguisher group 2 is connected to the fire extinguishing agent main pipeline 4 through a pipeline. Since the control device body 1 is placed in a room with heavy oil and heavy smoke such as the kitchen for a long time, it is inevitable that it will be stained with a lot of grease. If an embedded handle is set, it will be inconvenient to clean, affecting hygiene and appearance. Therefore, the front plate 113 can be opened by pressing a rebounder 1135 and a damping hinge 1134, and the driving gas cylinder 13 arranged in the shell is opened by The mechanical control valve 15 is controlled by PLC12. If a fire occurs, the mechanical control valve 15 will open, and the high-pressure nitrogen in the driving gas cylinder 13 will quickly enter the fire extinguisher in the fire extinguisher group 2 after passing through the pressure reducing valve 16. The nitrogen inlet is located at the upper part of the fire extinguisher bottle, and an air duct is provided at the outlet of the fire extinguisher. The nitrogen squeezes the fire extinguishing agent downward, so that the fire extinguishing agent enters the fire extinguishing agent main pipeline 4 from the air duct. The status of the driving gas cylinder 13 itself can be observed through the observation hole 1132 on the instrument panel set on the mechanical control valve 15, and it can also be determined whether the driving gas cylinder 13 is normal through the preset value and process value on the display screen 1133.

[0035] like Figure 1-3As shown, a water inlet is arranged on the fire extinguishing agent main pipeline 4, which is connected to the water outlet of the chemical liquid tank through a pipeline, and a chemical liquid pump is arranged between the water inlet and the chemical liquid tank. The fire extinguishing agent main pipeline 4 includes a flue fire extinguishing agent pipeline 41 and a stove fire extinguishing agent pipeline 42, and a plurality of injection devices 43 are arranged at equal intervals on the stove fire extinguishing agent pipeline 42. A start pipeline 3 is arranged in parallel on the stove fire extinguishing agent pipeline 42, and a plurality of temperature-sensing release mechanisms 31 are arranged at equal intervals on the start pipeline 3. The temperature-sensing release mechanism 31 is composed of a mechanism body, a temperature-sensitive alloy sheet and a steel wire rope, and the steel wire rope is connected to a fire signal release device 32. The fire signal release device 33 is connected to the fire signal release device 33. 2 is electrically connected to PLC12 through wires. A plurality of injection devices 43 are arranged at equal intervals on the flue fire extinguishing agent pipeline 41. The injection device 43 consists of a nozzle body 431 and an X-shaped blade 432. The X-shaped blade 432 is bolted to the nozzle body 431. The nozzle of the injection device 43 is arranged parallel to the flue fire extinguishing agent pipeline 41. The nozzle of the injection device 43 is arranged vertically to the stove fire extinguishing agent pipeline 42. The inlet of the fire extinguishing agent main pipeline 4 is connected to the tap water network. A manual starting device 5 is arranged between the fire extinguisher group 2 and the control device body 1. The manual starting device 5 is electrically connected to PLC12 through wires. If a large amount of oil scale is accumulated, once a sporadic open flame is involved, a fire will immediately be caused. Therefore, the control device is responsible for not only extinguishing fires in emergency situations, but also for daily cleaning of the oil fume pipe. Therefore, a chemical liquid tank is also connected to the fire extinguishing agent main pipeline 4. The chemical liquid tank stores a 30% concentration of caustic soda solution, which can be used to descale the flue through multiple nozzles set on the flue fire extinguishing agent pipeline 41. When performing the descaling task, since there is no fire, the temperature-sensitive release mechanism 31 of the start pipeline 3 set on the stove fire extinguishing agent main pipeline 4 will not melt, and it needs to be manually opened by personnel. Therefore, a manual starting device 5 is set at an appropriate position. In addition to the chemical tank, the fire extinguishing agent main pipeline 4 is also connected to a tap water pipeline. When the stored fire extinguishing agent is sprayed out, the open flame basically disappears. At this time, PLC12 will control the valve to allow tap water to enter the flue fire extinguishing agent pipeline 41 and the stove fire extinguishing agent pipeline 42 from the fire extinguishing agent main pipeline 4 to ensure that there will be no re-ignition. The nozzle body 431 and the X-shaped blade 432 can make the sprayed tap water, caustic soda solution and fire extinguishing agent in a cone shape, which can more effectively perform fire extinguishing and cleaning functions. At the same time, PLC12 is also connected to a gas valve. After a fire occurs, PLC12 can immediately cut off the gas pipeline to prevent further disasters from occurring.

[0036] Specific implementation process:

[0037] The first is the monthly kitchen fume duct cleaning operation. After pressing the manual start device 5, PLC12 receives the signal, outputs the corresponding command, turns on the chemical liquid pump, pumps the caustic soda solution from the chemical liquid tank to the fire extinguishing agent main pipeline 4, and closes the pipelines of the fire extinguisher group 2 and the stove fire extinguishing agent pipeline 42 one by one. The caustic soda solution is pumped all the way to the flue fire extinguishing agent pipeline 41, and through the injection devices 43 arranged in parallel at equal intervals on the flue fire extinguishing agent pipeline 41, the caustic soda solution is sprayed in the flue in a solid cone shape, and the caustic soda solution reacts with grease to wash away the grease. Secondly, when a fire occurs, the temperature-sensitive alloy sheet in the temperature-sensitive release mechanism 31 melts due to the fire on the stove, and the originally tight wire rope is loosened. The fire signal release device 32 connected to the wire rope detects that the wire rope signal has changed, and outputs a signal to the PLC12 and the fire sound and light alarm. The PLC12 closes the valve of the gas pipeline, and the PLC12 controls the mechanical control valve 15 to input the high-pressure nitrogen in the driving gas cylinder 13 into the fire extinguisher group 2 through the pressure reducing valve 16, and squeezes the fire extinguishing agent in the fire extinguisher group 2 into the fire extinguishing agent main pipeline 4. , and then through the injection devices 43 arranged vertically at equal intervals on the flue fire extinguishing agent pipeline 41 and the stove fire extinguishing agent pipeline 42, the fire extinguishing agent is sprayed onto the flue and the stove in a conical solid jet through the cooperation of the nozzle body 431 and the X-shaped blade 432. After the fire extinguishing agent is sprayed within the preset time, PLC12 closes the pipeline of the fire extinguisher group 2, opens the tap water valve connected to the tap water pipeline, and inputs the tap water into the injection devices 43 on the flue fire extinguishing agent pipeline 41 and the stove fire extinguishing agent pipeline 42 in the same way to prevent the fire source from re-igniting.

[0038] In the embodiments disclosed in the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present invention can be understood according to specific circumstances.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A kitchen equipment fire extinguishing device flue cleaning and cooling control module, comprising a control device body (1), a fire extinguisher group (2), a starter pipeline (3) and a fire extinguishing agent main pipeline (4), characterized in that: The control device body (1) comprises a housing (11), a PLC (12), a driving gas cylinder (13), a control panel (14), a mechanical control valve (15), a pressure reducing valve (16) and a solenoid valve (17); The housing (11) is assembled from a top plate (111), a bottom plate (112), a front plate (113), a rear plate (114), a left plate (115) and a right plate (116); A control panel (14) is arranged on the front plate (113), a PLC (12) is arranged on the inner top of the bottom plate (112), a driving gas cylinder (13) is arranged on the right side of the PLC (12), the driving gas cylinder (13) is detachably mounted on the inner side of the rear plate (114), a mechanical control valve (15) is arranged on the top of the driving gas cylinder (13), a dashboard is arranged in front of the mechanical control valve (15), an air outlet of the mechanical control valve (15) is connected to an air inlet of the fire extinguisher group (2) through a gas pipeline, a pressure reducing valve (16) is arranged on the pipeline between the mechanical control valve (15) and the fire extinguisher group (2), the air inlet and air outlet of the fire extinguisher group (2) are coaxially arranged, and the air outlet of the fire extinguisher group (2) is connected to a fire extinguishing agent main pipeline (4) through a pipeline; The fire extinguishing agent main pipeline (4) comprises a flue fire extinguishing agent pipeline (41) and a stove fire extinguishing agent pipeline (42), a plurality of injection devices (43) are arranged at equal intervals on the stove fire extinguishing agent pipeline (42), a starting pipeline (3) is arranged in parallel on the stove fire extinguishing agent pipeline (42), a plurality of temperature-sensitive release mechanisms (31) are arranged at equal intervals on the starting pipeline (3), a plurality of injection devices (43) are arranged at equal intervals on the flue fire extinguishing agent pipeline (41), and the inlet of the fire extinguishing agent main pipeline (4) is connected to a tap water network; A manual starting device (5) is provided between the fire extinguisher group (2) and the control device body (1), and the manual starting device (5) is electrically connected to the PLC (12) via an electric wire; The fire extinguishing agent main pipeline (4) is provided with a water inlet, the water inlet is connected to the water outlet of the chemical liquid tank through a pipeline, and a chemical liquid pump is provided between the water inlet and the chemical liquid tank.

2. A kitchen equipment fire extinguishing device flue cleaning and cooling control module according to claim 1, characterized in that: A plurality of indicator lights (1131) are evenly arranged on the control panel (14); an observation hole (1132) is arranged on the right side of the indicator lights (1131); a display screen (1133) is arranged below the observation hole (1132); and the display screen (1133) and the indicator lights (1131) are both electrically connected to the PLC (12) via electric wires.

3. A kitchen equipment fire extinguishing device flue cleaning and cooling control module according to claim 1, characterized in that: The temperature-sensitive release mechanism (31) is composed of a mechanism body, a temperature-sensitive alloy sheet and a steel wire rope, the steel wire rope is connected to a fire signal release device (32), and the fire signal release device (32) is electrically connected to a PLC (12) via an electric wire.

4. A kitchen equipment fire extinguishing device flue cleaning and cooling control module according to claim 1, characterized in that: The injection device (43) is composed of a nozzle body (431) and an X-shaped blade (432), the X-shaped blade (432) being bolted to the nozzle body (431), the nozzle of the injection device (43) being arranged in parallel with the flue fire extinguishing agent pipeline (41), and the nozzle of the injection device (43) being arranged in perpendicular relation to the stove fire extinguishing agent pipeline (42).

5. A flue cleaning and cooling control module for a kitchen equipment fire extinguishing device according to claim 1, characterized in that: A damping hinge (1134) is provided on the right side of the front plate (113), the front plate (113) is hingedly fixed to the right plate (116), and a rebounder (1135) is provided on the inner side surface of the left side of the front plate (113).

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