CN109631107B - Fume exhauster with purifier - Google Patents

Abstract

A range hood with a purifying device comprises a range hood body, the purifying device, a man-machine interaction interface, a first ion smoke sensor, a buzzer, a warning lamp and a single chip microcomputer system, wherein the man-machine interaction interface is installed on the range hood body. Purifier is including installing the gaseous phase purifier in the purifier box, active carbon purifier and tail gas absorbing device, the union coupling that discharges fume of box and smoke ventilator is stretched out to the last joint of gaseous phase purifier, the external inlet tube of box is passed to the last first inlet tube of gaseous phase purifier, the external sewage pipe of box that passes of the last first sewage pipe of gaseous phase purifier, the last first entry end cover of active carbon purifier is connected with the gas outlet on the purifying box among the gaseous phase purifier, the last first export end cover of active carbon purifier is connected with the last second entry end cover of tail gas absorbing device, the last blast pipe of tail gas absorbing device passes the external pipe of discharging fume of box.

Description

Fume exhauster with purifier

Technical Field

The invention relates to a range hood, in particular to a range hood with a purifying device.

Background

The oil fume is a product of high-temperature cracking of edible oil and food in the cooking process, and during cooking and heating operation, liquid drops are splashed and cracked, oil, materials and the like are decomposed, and finally the oil fume discharged from a kitchen contains three forms of gas, liquid and solid. The traditional solution is that a range hood is installed in a kitchen to discharge oil smoke to the outdoor, specifically, the oil smoke generated in the cooking process is absorbed by the range hood, one part of the oil smoke is discharged into the atmospheric environment or into a sewage discharge pipe through a smoke discharge pipe, and the other part of the oil smoke is cooled into liquid state and directly left in an oil collecting tank at the lower end of the range hood to be cleaned manually.

However, the oil smoke in the kitchen is only released by the method, the oil smoke which is exhausted into the atmospheric environment or into the sewage discharge pipe with pollution still causes serious pollution to the atmosphere, water or soil, and the problem of oil smoke pollution is not actually solved. The other part of the oil smoke which is cooled to be liquid and left in the oil collecting tank of the range hood needs to be cleaned frequently by manpower, which wastes time and labor.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the range hood with the purification device, which can monitor the concentration of the oil smoke discharged by the range hood in real time and purify the discharged oil smoke, so that purified oil smoke particles flow into a sewer, and oil smoke gas reaching the purification standard is discharged into the atmosphere, thereby avoiding the pollution to the environment.

The technical scheme of the invention is as follows: take purifier's smoke ventilator includes smoke ventilator, purifier, man-machine interactive interface, first ion smoke transducer, bee calling organ, warning light and single chip microcomputer system.

The purification device comprises a box body, a box cover, a gas phase purification device, an activated carbon purification device and a tail gas absorption device.

The gas-phase purification device comprises a purification box body, a purification box cover, a purified liquid box, a clean water box, a purifying agent groove, a first electronic valve, a three-way electromagnetic valve, a first water inlet pipe and a first sewage guide pipe.

The purifying box body is provided with a joint connected with a smoke exhaust pipe of the range hood, an air outlet connected with the activated carbon purifying device and a first sewage conduit.

The purifying liquid box and the clean water box are installed in the purifying box body, an atomization injector is arranged on the side wall of the purifying liquid box, a first liquid level sensor is arranged in the purifying liquid box, and the first liquid level sensor is used for monitoring the liquid level height of the purifying liquid in the purifying liquid box.

The bottom of the clear water tank is provided with a shower head, a second liquid level sensor is arranged in the clear water tank, and the second liquid level sensor is used for monitoring the water level height of clear water in the clear water tank.

The purifying box cover is arranged on the purifying box body, the purifying agent groove is arranged on the purifying box cover, a third liquid level sensor is arranged in the purifying agent groove and used for monitoring the liquid level height of the purifying agent in the purifying agent groove, the bottom of the purifying agent groove is communicated with the purifying liquid box through a conduit, and a first electronic valve is arranged on the conduit and used for controlling the on-off of the purifying agent, so that the purifying agent flows into the purifying liquid box.

The first water inlet pipe and the three-way electromagnetic valve are arranged on the purifying box cover through the water outlet pipe, the water inlet end of the three-way electromagnetic valve is connected with the first water inlet pipe, and the water outlet pipes on the first water outlet end and the second water outlet end of the three-way electromagnetic valve penetrate through the purifying box cover to be respectively communicated with the purified liquid box and the clean water box.

The activated carbon purification device comprises a first cylinder body with a flange plate at one end, a first inlet end cover with a flange plate, a first outlet end cover with flange plates at two ends, a first baffle, a cylindrical silk screen, a spiral plate, a second baffle and an activated carbon layer.

A filter screen is arranged on the first baffle, and air holes are formed in the second baffle.

One end of the first cylinder body is connected with the first inlet end cover in a welding mode, the first baffle is installed at one end, close to the first inlet end cover, of the first cylinder body, the cylindrical silk screen is installed in the first cylinder body, the end portion of the cylindrical silk screen abuts against the filter screen on the first baffle, the spiral plate is installed in the cylindrical silk screen to form a spiral channel, and the activated carbon layer is filled in a cavity formed by the cylindrical silk screen and the first cylinder body.

The other end of the first barrel is connected with the first outlet end cover through a flange plate, the second baffle plate is installed between the flange plate of the first barrel and the flange plate of the first outlet end cover, the other end of the cylindrical silk screen is sealed through the second baffle plate, the air holes in the second baffle plate are located on the end face of the activated carbon layer to form an air flow channel, and the activated carbon layer is replaced by detaching the first outlet end cover.

The tail gas absorption device comprises a second cylinder, a second inlet end cover with a flange plate, a second outlet end cover with an exhaust pipe, a third baffle, an air inlet guide pipe, an absorption liquid box, an air outlet guide pipe, a fourth baffle and a second ion smoke sensor.

The second barrel is provided with a door capable of being opened outwards, the absorption liquid box is installed in the second barrel, absorption liquid is filled in the absorption liquid box, the liquid level of the absorption liquid is kept at 2/3 of the height of the absorption liquid box, and the absorption liquid box is taken out and replaced by the absorption liquid by opening the door on the second barrel.

The second inlet end cover and the third baffle are welded at one end of the second cylinder, the second outlet end cover and the fourth baffle are welded at the other end of the second cylinder, one end of the air inlet guide pipe is welded on an air inlet of the third baffle, the other end of the air inlet guide pipe is installed on a box cover of the absorption liquid box and penetrates through the box cover of the absorption liquid box to stretch into absorption liquid of the absorption liquid box, one end of the air outlet guide pipe is welded on an air outlet of the fourth baffle, the other end of the air outlet guide pipe is installed on the box cover of the absorption liquid box and penetrates through the box cover of the absorption liquid box to stretch into the absorption liquid box and is positioned on the liquid level of the absorption liquid in the absorption liquid box, and the second ion smoke sensor is installed.

Gaseous phase purifier, active carbon purifier and tail gas absorbing device install in the box, the case lid is installed on the box, the union coupling on the gaseous phase purifier stretches out the box and is connected with smoke exhaust pipe of smoke ventilator, the external inlet tube of box is passed to the first inlet tube on the gaseous phase purifier, the external sewage pipeline of box that passes of the first sewage pipe on the gaseous phase purifier, the gas outlet on the purifying box is connected in the first entry end cover on the active carbon purifier and the gaseous phase purifier, the second entry end cover on first export end cover on the active carbon purifier and the tail gas absorbing device is connected, the blast pipe on the tail gas absorbing device passes the external pipe of discharging fume of box.

Man-machine interactive interface, bee calling organ, warning light and single chip microcomputer system all locate on the smoke ventilator, the storage has the concentration threshold value after the oil smoke purifies that the user set for through man-machine interactive interface in the single chip microcomputer system, smoke ventilator smoke exhaust pipe exit is located to first ion smoke transducer, atomizing sprayer, first level sensor, three-way solenoid valve, the gondola water faucet, the second level sensor, first electronic valve, the third level sensor, man-machine interactive interface, first ion smoke transducer, the second ion smoke transducer, bee calling organ and warning light all are connected with the single chip microcomputer system electricity.

The human-computer interaction interface comprises a liquid crystal display screen, and can display the oil smoke concentration detected by the first ion smoke sensor and the second ion smoke sensor in real time, and the liquid level height and other parameters detected by the first liquid level sensor, the second liquid level sensor and the third liquid level sensor.

The first ion smoke sensor is used for detecting the concentration of oil smoke discharged by the range hood body in real time, transmitting the detected data to the single chip microcomputer system and displaying the data on the liquid crystal display screen; the second ion smoke sensor is used for detecting the concentration of oil smoke gas in the gas exhausted into the outside air after three-stage purification by the gas phase purification device, the activated carbon purification device and the tail gas absorption device in real time, transmitting the detected data to the single chip microcomputer system and displaying the data on the liquid crystal display screen; the user monitors the concentration of the oil smoke discharged by the range hood and the concentration of the purified oil smoke gas through the data on the liquid crystal display screen, if the concentration of the purified oil smoke gas exceeds the concentration threshold value stored in the single chip microcomputer system, the buzzer works to remind the user, and the purification liquid concentration, the activated carbon amount and the absorption liquid in the gas phase purification device, the activated carbon purification device and the tail gas absorption device are adjusted to improve the purification effect.

When the range hood works, oil smoke in a kitchen is collected to the range hood, the first ion smoke sensor works through a smoke exhaust pipe on the range hood, received electric signals of concentration before purification of the oil smoke are transmitted to the single chip microcomputer system for signal processing, and the electric signals are converted into digital signals and output to the man-machine interaction interface for display; the oil smoke discharged by the smoke exhaust pipe enters the purification device and is subjected to three-stage purification by the gas phase purification device, the activated carbon purification device and the tail gas absorption device.

Solid particles in the oil smoke become dirty liquid to fall into the purifying box body after the atomization, spray and purification effects of the gas phase purifying device, and the dirty liquid and liquid substances in the oil smoke are discharged into a sewage pipeline from the purifying box body of the first sewage conduit when the purifying box body is cleaned and purified by the clean water tank.

Gaseous substances in the oil smoke enter the active carbon purification device and the tail gas absorption device after passing through the gas phase purification device, before purified oil smoke gas is discharged out of the purification device, the second ion smoke sensor works, electric signals of the oil smoke concentration after three-stage purification are transmitted to the single chip microcomputer system to be processed, and the electric signals are converted into digital signals and are output to the human-computer interaction interface to be displayed. The user observes the concentration around the oil smoke purifies through the data that liquid crystal display shows on the human-computer interaction interface, when the concentration after the oil smoke purifies surpassed the concentration threshold value after the oil smoke purifies that the user set for, bee calling organ work reminds the user can improve the purification performance through suitably improving the scavenging solution concentration, change the active carbon volume and change the absorption liquid, after the oil smoke concentration that detects the purification up to the second ion smoke transducer accords with the threshold value requirement that the user set for, with the oil smoke gas after purifying in the blast pipe exhaust purifier gets into external atmosphere.

The further technical scheme of the invention is as follows: the oil collecting tank purifier is connected via residual oil pipe to the oil collecting tank in the lower end of the fume exhaust ventilator for purifying the cooled liquid fume.

The oil collecting tank purifying device comprises an oil collecting tank purifying tank body, an oil collecting tank purifying tank cover, a vibrator, a feeding box, a fourth liquid level sensor, a residual oil guide pipe, a second water inlet pipe, a second electronic valve and a second sewage guide pipe.

The electromagnetic valve is characterized in that the electromagnetic valve is arranged on the first water inlet pipe, the electromagnetic valve is arranged on the second water inlet pipe, the electromagnetic valve is arranged on the electromagnetic valve, the electromagnetic valve is.

The vibrator, the fourth liquid level sensor and the second electronic valve are all electrically connected with the single chip microcomputer system.

When the residual oil in the oil collecting tank at the lower end of the range hood is purified, the residual oil in the oil collecting tank enters the oil collecting tank purifying device along with a residual oil guide pipe, when the residual oil reaches a certain amount, the fourth liquid level sensor transmits a signal to the single chip microcomputer system, the single chip microcomputer system controls the fourth electronic valve to be opened, hot water flows into the tank body from the second water inlet pipe, a user manually adds a special reactant through the material adding box, meanwhile, the single chip microcomputer controls the vibrator to work, and after the residual oil works for a period of time, the solution after oil smoke purification in the tank body is discharged into a sewage pipeline along with the second sewage guide pipe.

Compared with the prior art, the invention has the following characteristics:

1. the invention adopts multi-stage purification, the purification devices at all stages are detachably connected, the purification liquid, the active carbon or the absorption liquid in the purification devices at all stages can be conveniently replaced, the allocation and the supplement of the purification liquid, the active carbon and the absorption liquid in the purification devices at all stages are automatically controlled by the singlechip, and the singlechip controls the warning lamp to be on according to the detection of the liquid level sensor so as to prompt a user to add the purifying agent in time, thereby greatly facilitating the operation of the user.

2. The concentration of the smoke exhausted by the smoke exhaust ventilator body and purified by the ion smoke sensor is detected in real time and displayed in the human-computer interaction interface, and when the concentration exceeds a set standard, the buzzer is controlled to give an alarm, so that a user can adjust the concentration of the purifying liquid, the using amount of the active carbon layer and/or the concentration of the absorbing liquid in time according to the displayed smoke concentration to purify the smoke, and the purifying effect on the oil smoke generated in the cooking process is improved.

3. According to the invention, the oil smoke pollutants discharged by the range hood are purified and then discharged into the environment, so that the pollution of the oil smoke discharged by the range hood to the environment is effectively solved; and the residual oil in the oil collecting tank is purified by the oil collecting tank purifying device, so that the times of cleaning the oil collecting tank by a user are reduced, and the problems that harmful bacteria are harmful to human bodies due to the deposition of a large amount of oil stains in the oil collecting tank are avoided.

The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is a schematic structural diagram of a range hood with a purification device provided by the invention;

FIG. 2 is a schematic view of a gas phase purification apparatus;

FIG. 3 is a schematic structural diagram of an activated carbon purification device;

FIG. 4 is a schematic structural diagram of a tail gas absorption device;

FIG. 5 is a schematic view of a range hood with a purifying device, which is added with an oil collecting tank purifying device;

fig. 6 is a schematic structural diagram of the sump cleaner.

Detailed Description

The first embodiment is as follows: as shown in fig. 1-4, the range hood with the purification device comprises a range hood 1, a purification device 2, a human-computer interaction interface 3, a first ion smoke sensor 4, a buzzer 5, a warning lamp 6 and a single chip microcomputer system 7.

The purification device 2 comprises a box body 2-1, a box cover 2-2, a gas phase purification device 2-3, an active carbon purification device 2-4 and a tail gas absorption device 2-5.

As shown in fig. 2, the gas phase purification device 2-3 is used for performing a first-stage purification on the oil smoke discharged from the smoke discharge pipe. The gas phase purification device 2-3 comprises a purification box body 2-3-1, a purification box cover 2-3-2, a purification liquid box 2-3-3, a clear water box 2-3-4, a purification agent tank 2-3-5, a first electronic valve 2-3-6, a three-way electromagnetic valve 2-3-7, a first water inlet pipe 2-3-8 and a first sewage conduit 2-3-9.

The purifying box body 2-3-1 is provided with a connector 2-3-1-2 connected with a smoke exhaust pipe of the smoke exhaust ventilator 1, an air outlet 2-3-1-1 connected with the activated carbon purifying device 2-4 and a first sewage conduit 2-3-9.

The purifying liquid box 2-3-3 and the clean water box 2-3-4 are arranged in the purifying box body 2-3-1, the side wall of the purifying liquid box 2-3-3 is provided with an atomizing injector 2-3-1, and the purifying liquid box 2-3-3 is internally provided with a first liquid level sensor 2-3-3-2. The purifying liquid box 2-3-3 is used for storing special purifying liquid, in order to ensure the using process of the purifying liquid to be sufficient, the size, the width and the height of the purifying liquid box 2-3-3 can be selected to be about 150mm, the available amount of the purifying liquid is kept at 2/3 of the volume of the purifying liquid box 2-3-3, the purpose is to ensure that the gas phase purifying device 2-3 can normally work when the smoke exhaust ventilator works, and the first liquid level sensor 2-3-3-2 is used for monitoring the liquid level height of the purifying liquid in the purifying liquid box 2-3-3.

The atomizing injector 2-3-3-1 atomizes the purifying liquid, and increases the specific surface area of the purifying liquid and improves the oil smoke purifying effect by using the mass transfer double-membrane theory. Specifically, the atomization ejector 2-3-3-1 adopts an ultrasonic atomizer, the ultrasonic atomizer adopts high-frequency oscillation (oscillation frequency is 1.7 MHz), the solution in the purifying liquid box 2-3-3 is thrown away from the water surface through the high-frequency oscillation of the atomization sheet to generate elegant water mist, so that the atomization effect is achieved, the purifying liquid in a mist state collides with the oil fume particles, and the oil fume particles are decomposed to fall into the purifying box body 2-3-1.

The bottom of the clear water tank 2-3-4 is provided with a shower head 2-3-4-1, the clear water tank 2-3-4 is internally provided with a second liquid level sensor 2-3-4-2, and the second liquid level sensor 2-3-4-2 is used for monitoring the water level height of clear water in the clear water tank 2-3-4. Clean water is stored in the clean water tank 2-3-4, and in order to clean the purifying tank body 2-3-1, the shower head 2-3-4-1 is controlled to rotate through the single chip microcomputer system, so that the purifying tank body 2-3-1 is cleaned, and oil smoke particles and liquid oil smoke in the purifying tank body 2-3-1 are discharged.

The purifying box cover 2-3-2 is arranged on the purifying box body 2-3-1, the purifying agent groove 2-3-5 is arranged on the purifying box cover 2-3-2, the purifying agent groove 2-3-5 is internally provided with a third liquid level sensor 2-3-5-1, the third liquid level sensor 2-3-5-1 is used for monitoring the liquid level height of the purifying agent in the purifying agent groove 2-3-5, the capacity of the purifying agent detected by the third liquid level sensor 2-3-5-1 is fed back to the singlechip system 7, and when the purifying agent is not left, the singlechip system controls the warning lamp 6 to be lightened to remind a user of adding the purifying agent in time for preparation. The bottom of the purifying agent groove 2-3-5 is communicated with the purifying liquid tank 2-3-3 through a conduit, and a first electronic valve 2-3-6 is arranged on the conduit to control the on-off of the purifying agent, so that the purifying agent flows into the purifying liquid tank 2-3-3.

The first water inlet pipe 2-3-8 and the three-way electromagnetic valve 2-3-7 are arranged on the purifying box cover 2-3-2 through a water outlet pipe, the water inlet end of the three-way electromagnetic valve 2-3-7 is connected with the first water inlet pipe 2-3-8, and the water outlet pipes on the first water outlet end and the second water outlet end of the three-way electromagnetic valve 2-3-7 penetrate through the purifying box cover 2-3-2 to be respectively communicated with the purifying liquid box 2-3-3 and the clear water box 2-3-4.

When the first liquid level sensor 2-3-3-2 in the purified liquid tank 2-3-3 detects that the solution in the purified liquid tank is lower than the volume 1/3, the signal is transmitted to the singlechip system 7, the singlechip system 7 controls the first electronic valve 2-3-5-1 and the first water outlet end of the three-way electromagnetic valve 2-3-7 to be opened, the purifying agent and the clean water respectively enter the purified liquid tank 2-3-3 to be prepared into purified liquid with proper concentration, and the first electronic valve 2-3-5-1 and the first water outlet end of the three-way electromagnetic valve 2-3-7 are closed until the volume reaches 3/4 of the volume of the purified liquid tank 2-3-3. When the second liquid level sensor 2-3-4-2 in the clean water tank 2-3-4 detects that the clean water therein is lower than the volume 1/3, the signal is transmitted to the singlechip system 7, the singlechip system 7 controls the second water outlet end of the three-way electromagnetic valve 2-3-7 to be opened, the clean water enters until the water volume reaches 3/4 of the volume of the water tank 2-3-4, and the second water outlet end of the three-way electromagnetic valve 2-3-7 is closed.

As shown in fig. 3, the activated carbon purification device 2-4 is used for performing a second-stage purification on the oil smoke discharged from the smoke discharge pipe. The activated carbon purification device 2-4 comprises a first cylinder 2-4-1 with a flange plate at one end, a first inlet end cover 2-4-2 with a flange plate, a first outlet end cover 2-4-3 with a flange plate at two ends, a first baffle 2-4-4, a cylindrical silk screen 2-4-5, a spiral plate 2-4-6, a second baffle 2-4-7 and an activated carbon layer 2-4-8.

The first baffle 2-4-4 is provided with a filter screen 2-4-1, and the second baffle 2-4-7 is provided with an air hole 2-4-7-1.

One end of the first cylinder 2-4-1 is connected with the first inlet end cover 2-4-2 through welding, the first baffle 2-4-4 is installed at one end, close to the first inlet end cover 2-4-2, in the first cylinder 2-4-1, the first baffle 2-4-4 is installed, the cylindrical screen 2-4-5 is installed in the first cylinder 2-4-1, the end portion of the cylindrical screen abuts against the filter screen 2-4-4-1 on the first baffle 2-4-4, the spiral plate 2-4-6 is installed in the cylindrical screen 2-4-5 to form a spiral channel, and the activated carbon layer 2-4-8 is filled in a cavity formed by the cylindrical screen 2-4-5 and the first cylinder 2-4-1.

The other end of the first cylinder 2-4-1 is connected with the first outlet end cover 2-4-3 through a flange plate, the second baffle plate 2-4-7 is arranged between the flange plate of the first cylinder 2-4-1 and the flange plate of the first outlet end cover 2-4-3, the other end of the cylindrical silk screen 2-4-5 is sealed through the second baffle plate 2-4-7, the air hole 2-4-7-1 on the second baffle plate 2-4-7 is positioned on the end face of the activated carbon layer 2-4-8 to form an air flow channel, and the activated carbon layer 2-4-8 is replaced by detaching the first outlet end cover 2-4-3.

The active carbon layers 2-4-8 adopt columnar active carbon, the active carbon has large surface area, developed pores, high strength, strong adsorption capacity and good chemical stability, is applied to the purification and filtration of harmful and toxic gases and microorganisms of various gases, and has good adsorption effect on harmful gases such as benzene, alcohols, carbon tetrachloride, trichloromethane and the like with low brushing point. In addition, the service life of the activated carbon is 2-3 years on average and is 1.4 times of that of common coal, and the purification of the oil fume gas by the activated carbon purification device 2-4 can be greatly improved.

The filter screen 2-4-4-1 is made of stainless steel, and the aperture of the stainless steel filter screen 2-4-4-1 is small, so that small impurities carried by gas can be filtered.

The spiral channel in the cylindrical screen 2-4-5 enables airflow entering the cylindrical screen 2-4-5 through the filter screen 2-4-4-1 to form a spiral shape in the cylindrical screen 2-4-5, so that the flow speed of oil smoke gas can be reduced, the contact time of the oil smoke gas and the activated carbon layer 2-4-8 is prolonged, the activated carbon layer 2-4-8 can more fully absorb harmful and toxic gas in the oil smoke gas, the purification efficiency of impurities in the oil smoke gas is improved, and the purified gas is discharged out of the activated carbon purification device 2-4 through the air holes 2-4-7-1 in the second baffle 2-4-7.

As shown in fig. 4, the tail gas absorption device 2-5 is used for performing a third-stage purification on the oil smoke discharged from the smoke exhaust pipe. The tail gas absorption device 2-5 comprises a second cylinder 2-5-1, a second inlet end cover 2-5-2 with a flange plate, a second outlet end cover 2-5-3 with an exhaust pipe, a third baffle 2-5-4, an air inlet guide pipe 2-5-5, an absorption liquid box 2-5-6, an air outlet guide pipe 2-5-7, a fourth baffle 2-5-8 and a second ion smoke sensor 2-5-9.

The second cylinder 2-5-1 is provided with a door 2-5-1-1 which can be opened outwards, the absorption liquid tank 2-5-6 is arranged in the second cylinder 2-5-1, the absorption liquid tank 2-5-6 is filled with absorption liquid, the liquid level of the absorption liquid is kept at 2/3 of the height in the absorption liquid tank 2-5-6, and the absorption liquid tank 2-5-6 is taken out by opening the door 2-5-1-1 on the second cylinder 2-5-1, so that the regular replacement of the absorption liquid is realized or the replacement is carried out according to the prompt of the single chip microcomputer system.

A second inlet end cover 2-5-2 and a third baffle 2-5-4 are welded at one end of a second cylinder 2-5-1, a second outlet end cover 2-5-3 and a fourth baffle 2-5-8 are welded at the other end of the second cylinder 2-5-1, one end of an air inlet conduit 2-5-5 is welded at the air inlet of the third baffle 2-5-4, the other end is arranged on a box cover of an absorption liquid box 2-5-6 and penetrates through the box cover of the absorption liquid box 2-5-6 to extend into absorption liquid of the absorption liquid box 2-5-6, one end of an air outlet conduit 2-5-7 is welded at the air outlet of the fourth baffle 2-5-8, the other end is arranged on the box cover of the absorption liquid box 2-5-6, and the second ion smoke sensor 2-5-9 is arranged in an exhaust pipe of a second outlet end 2-5-3 and penetrates through a box cover of the absorption liquid box 2-5-6 to extend into the absorption liquid box 2-5-6 and is positioned on the liquid level of the absorption liquid in the absorption liquid box 2-5-6.

The gas phase purification device 2-3, the active carbon purification device 2-4 and the tail gas absorption device 2-5 are arranged in the box body 2-1, the box cover 2-2 is arranged on the box body 2-1, the joint 2-3-1-2 on the gas phase purification device 2-3 extends out of the box body 2-1 to be connected with the smoke exhaust pipe of the smoke exhaust ventilator 1, the first water inlet pipe 2-3-8 on the gas phase purification device 2-3 passes through the box body 2-1 to be externally connected with a water inlet pipe, the first sewage conduit 2-3-9 on the gas phase purification device 2-3 passes through the box body 2-1 to be externally connected with a sewage pipeline, the first inlet end cover 2-4-2 on the active carbon purification device 2-4 is connected with the air outlet 2-3-1-1 on the purification box body 2-3-1 in the gas, a first outlet end cover 2-4-3 on the active carbon purification device 2-4 is connected with a second inlet end cover 2-5-2 on the tail gas absorption device 2-5, and an exhaust pipe on the tail gas absorption device 2-5 penetrates through the box body 2-1 and is externally connected with a smoke exhaust pipe.

The human-computer interaction interface 3, the buzzer 5, the warning lamp 6 and the single chip microcomputer system 7 are all arranged on the range hood 1, the concentration threshold value of the purified oil fume set by a user through the human-computer interaction interface 3 is stored in the single chip microcomputer system 7, the first ion smoke sensor 4 is arranged at the outlet of a smoke exhaust pipe of the range hood 1, the atomizing injector 2-3-3-2, the first liquid level sensor 2-3-2, the three-way electromagnetic valve 2-3-7, the shower head 2-3-4-2, the second liquid level sensor 2-3-4-2, the first electronic valve 2-3-6, the third liquid level sensor 2-3-5-1, the human-computer interaction interface 3, the first ion smoke sensor 4, the second ion smoke sensor 2-5-9, The buzzer 5 and the warning lamp 6 are both electrically connected with the singlechip microcomputer system 7.

The human-computer interaction interface 3 comprises a liquid crystal display screen and can display the oil smoke concentrations detected by the first ion smoke sensor 4 and the second ion smoke sensor 2-5-9 in real time, and parameters such as liquid level heights detected by the first liquid level sensor 2-3-3-2, the second liquid level sensor 2-3-4-2 and the third liquid level sensor 2-3-5-1.

The first ion smoke sensor 4 is used for detecting the concentration of oil smoke discharged by the range hood body in real time, transmitting the detected data to the single chip microcomputer system 7 and displaying the data on the liquid crystal display screen; the second ion smoke sensor 2-5-9 is used for detecting the concentration of oil smoke gas in the gas exhausted into the outside air after three-stage purification by the gas phase purification device 2-3, the activated carbon purification device 2-4 and the tail gas absorption device 2-5 in real time, transmitting the detected data to the single chip microcomputer system 7 and displaying the data on the liquid crystal display screen; the user monitors the concentration of the oil smoke discharged by the range hood 1 and the concentration of the purified oil smoke gas through data on a liquid crystal display screen, if the concentration of the purified oil smoke gas exceeds a concentration threshold value stored in the singlechip system 7, the buzzer 5 works to remind the user, and the concentrations of the purification liquid in the gas phase purification device 2-3, the activated carbon purification device 2-4 and the tail gas absorption device 2-5, the amount of the activated carbon 2-4-8 and the absorption liquid are adjusted to improve the purification effect.

When the range hood 1 works, oil smoke in a kitchen is collected to the range hood 1, the first ion smoke sensor 4 works at the moment through a smoke exhaust pipe on the range hood 1, received electric signals of concentration before purification of the oil smoke are transmitted to the single chip microcomputer system 7 for signal processing, and the electric signals are converted into digital signals and output to the human-computer interaction interface 3 for display; the oil smoke discharged by the smoke exhaust pipe enters the purification device 2 and is subjected to three-stage purification by the gas phase purification device 2-3, the activated carbon purification device 2-4 and the tail gas absorption device 2-5.

Solid particles in the oil smoke are changed into dirty liquid through the atomization, spray and purification effects of the gas phase purification device 2-3, the dirty liquid falls into the purification box body 2-3-1, and the dirty liquid and liquid substances in the oil smoke are discharged into a sewage pipeline through the first sewage conduit 2-3-9 when the purification box body 2-3-1 is cleaned and purified by the clean water tank 2-3-4.

Gaseous substances in the oil smoke enter the activated carbon purification device 2-4 and the tail gas absorption device 2-5 after passing through the gas phase purification device 2-3, before purified oil smoke gas is discharged out of the purification device 2, the second ion smoke sensor 2-5-9 works, electric signals of the oil smoke concentration after three-stage purification are transmitted to the single chip microcomputer system 7 to be processed, and the electric signals are converted into digital signals and output to the human-computer interaction interface 3 to be displayed. The user observes the concentration before and after the oil smoke purifies through the data that liquid crystal display shows on the human-computer interaction interface 3, when the concentration after the oil smoke purifies surpasses the concentration threshold value after the oil smoke purifies that the user sets for, bee calling organ 5 work reminds the user to improve purification ability through suitably improving the scavenging solution concentration, changing active carbon volume 2-4-8 and changing the absorption liquid, after the second ion smoke sensor 2-5-9 detects that the oil smoke concentration after the purification accords with the threshold value requirement that the user set for, discharge the oil smoke gas after purifying through blast pipe purifier 2 and get into in the external atmosphere.

Example two: on the basis of the first embodiment, an oil collecting tank purifying device 8 is additionally arranged, and the oil collecting tank purifying device 8 is connected with an oil collecting tank 1-1 at the lower end of the range hood 1 through a residual oil guide pipe 8-6 and is used for purifying the cooled liquid oil smoke in the oil collecting tank 1-1 at the lower end of the range hood 1.

As shown in figure 5, the oil collecting tank purifying device 8 comprises an oil collecting tank purifying box body 8-1, an oil collecting tank purifying box cover 8-2, a vibrator 8-3, a feeding box 8-4, a fourth liquid level sensor 8-5, a residual oil guide pipe 8-6, a second water inlet pipe 8-7, a second electronic valve 8-8 and a second sewage guide pipe 8-9.

A vibrator 8-3 arranged at the bottom of the purifying box body 8-1 of the oil collecting tank, a feeding box 8-4 arranged on the feeding hole of the upper end wall of the purifying box body 8-1 of the oil collecting tank for adding special reaction liquid, a fourth liquid level sensor 8-5 arranged in the purifying box body 8-1 of the oil collecting tank, a residual oil conduit 8-6 arranged on the purifying box cover 8-2 of the oil collecting tank and a residual oil conduit

One end of the second water inlet pipe 8-7 is connected with the oil collecting tank 1-1, the other end of the second water inlet pipe passes through the oil collecting tank purifying tank cover 8-2 and extends into the lower end of the oil collecting tank purifying tank body 8-1, the second water inlet pipe 8-7 is arranged on the oil collecting tank purifying tank cover 8-2, one end of the second water inlet pipe passes through the oil collecting tank purifying tank cover 8-2 and extends into the oil collecting tank purifying tank body 8-1, the other end of the second water inlet pipe is connected with a hot water source, the second electronic valve 8-8 is arranged on the second water inlet pipe 8-7, one end of the second sewage conduit 8-9 is arranged at.

The vibrator 8-3, the fourth liquid level sensor 8-5 and the second electronic valve 8-8 are all electrically connected with the singlechip system 7.

When the residual oil in the oil collecting tank 1-1 at the lower end of the range hood 1 is purified, the residual oil in the oil collecting tank 1-1 enters an oil collecting tank purifying device 8 along with a residual oil guide pipe 8-6, when the residual oil reaches a certain amount, a fourth liquid level sensor 8-5 transmits a signal to a single chip microcomputer system 7, the single chip microcomputer system 7 controls a fourth electronic valve 8-8 to be opened, hot water flows into a box body 8-1 through a second water inlet pipe 8-7, a user manually adds a special reactant through a material adding box 8-4, meanwhile, the single chip microcomputer controls a vibrator 8-3 to work, and after the working for a period of time, a solution obtained after oil smoke purification in the box body 8-1 is discharged into a sewage pipeline along with a second sewage guide pipe 8-9.

Claims (1)

1. Take purifier's smoke ventilator, characterized by: the smoke exhaust ventilator comprises a smoke exhaust ventilator, a purifying device, a human-computer interaction interface, a first ion smoke sensor, a buzzer, a warning lamp, a single chip microcomputer system and an oil collecting tank purifying device;

the purification device comprises a box body, a box cover, a gas phase purification device, an activated carbon purification device and a tail gas absorption device;

the gas-phase purification device comprises a purification box body, a purification box cover, a purified liquid box, a clean water box, a purifying agent groove, a first electronic valve, a three-way electromagnetic valve, a first water inlet pipe and a first sewage guide pipe;

the purifying box body is provided with a joint connected with a smoke exhaust pipe of the smoke exhaust ventilator, an air outlet connected with the activated carbon purifying device and a first sewage conduit;

the purifying liquid box and the clean water box are arranged in the purifying box body, the side wall of the purifying liquid box is provided with an atomizing injector, a first liquid level sensor is arranged in the purifying liquid box, and the first liquid level sensor is used for monitoring the liquid level height of the purifying liquid in the purifying liquid box;

the bottom of the clear water tank is provided with a shower head, a second liquid level sensor is arranged in the clear water tank and used for monitoring the water level height of clear water in the clear water tank;

the purifying box cover is arranged on the purifying box body, the purifying agent groove is arranged on the purifying box cover, a third liquid level sensor is arranged in the purifying agent groove and used for monitoring the liquid level height of a purifying agent in the purifying agent groove, the bottom of the purifying agent groove is communicated with the purifying liquid box through a conduit, and a first electronic valve is arranged on the conduit and used for controlling the on-off of the purifying agent, so that the purifying agent flows into the purifying liquid box;

the first water inlet pipe and the three-way electromagnetic valve are arranged on the purifying box cover through the water outlet pipe, the water inlet end of the three-way electromagnetic valve is connected with the first water inlet pipe, and the water outlet pipes on the first water outlet end and the second water outlet end of the three-way electromagnetic valve penetrate through the purifying box cover to be respectively communicated with the purified liquid box and the clean water box;

the active carbon purification device comprises a first cylinder body with a flange plate at one end, a first inlet end cover with a flange plate, a first outlet end cover with flange plates at two ends, a first baffle, a cylindrical silk screen, a spiral plate, a second baffle and an active carbon layer;

a filter screen is arranged on the first baffle plate, and air holes are formed in the second baffle plate;

one end of the first cylinder is connected with the first inlet end cover in a welding mode, the first baffle is installed at one end, close to the first inlet end cover, of the first cylinder, the cylindrical silk screen is installed in the first cylinder, the end portion of the cylindrical silk screen is abutted to the filter screen on the first baffle, the spiral plate is installed in the cylindrical silk screen to form a spiral channel, and the activated carbon layer is filled in a cavity formed by the cylindrical silk screen and the first cylinder;

the other end of the first cylinder is connected with the first outlet end cover through a flange plate, a second baffle plate is arranged between the flange plate of the first cylinder and the flange plate of the first outlet end cover, the other end of the cylindrical silk screen is sealed through the second baffle plate, air holes in the second baffle plate are positioned on the end face of the activated carbon layer to form an air flow channel, and the activated carbon layer is replaced by detaching the first outlet end cover;

the tail gas absorption device comprises a second cylinder, a second inlet end cover with a flange plate, a second outlet end cover with an exhaust pipe, a third baffle, an air inlet guide pipe, an absorption liquid box, an air outlet guide pipe, a fourth baffle and a second ion smoke sensor;

the second barrel is provided with a door capable of being opened outwards, the absorption liquid box is arranged in the second barrel and filled with absorption liquid, the liquid level of the absorption liquid is kept at 2/3 of the height in the absorption liquid box, and the absorption liquid box is taken out and replaced by the absorption liquid by opening the door on the second barrel;

a second inlet end cover and a third baffle are welded at one end of the second cylinder, a second outlet end cover and a fourth baffle are welded at the other end of the second cylinder, one end of an air inlet guide pipe is welded on an air inlet of the third baffle, the other end of the air inlet guide pipe is installed on a box cover of the absorption liquid box and penetrates through the box cover of the absorption liquid box to extend into absorption liquid of the absorption liquid box, one end of an air outlet guide pipe is welded on an air outlet of the fourth baffle, the other end of the air outlet guide pipe is installed on the box cover of the absorption liquid box and penetrates through the box cover of the absorption liquid box to extend into the absorption liquid box and is positioned on the liquid level of the absorption liquid in the absorption liquid box, and a second ion smoke sensor is installed;

the gas-phase purification device, the activated carbon purification device and the tail gas absorption device are arranged in the box body, the box cover is arranged on the box body, a connector on the gas-phase purification device extends out of the box body and is connected with a smoke exhaust pipe of the range hood, a first water inlet pipe on the gas-phase purification device penetrates through the box body and is externally connected with a water inlet pipe, a first sewage conduit on the gas-phase purification device penetrates through the box body and is externally connected with a sewage pipeline, a first inlet end cover on the activated carbon purification device is connected with a gas outlet on a purification box body in the gas-phase purification device, a first outlet end cover on the activated carbon purification device is connected with a second inlet end cover;

the smoke exhaust ventilator comprises a smoke exhaust ventilator, a human-computer interaction interface, a buzzer, a warning lamp and a single chip microcomputer system, wherein the smoke exhaust ventilator is provided with a smoke exhaust pipe, the smoke exhaust pipe is provided with a smoke exhaust pipe, and the smoke exhaust pipe is provided with a smoke exhaust pipe;

the oil collecting tank purifying device is connected with the oil collecting tank at the lower end of the range hood through a residual oil guide pipe and is used for purifying the cooled liquid oil smoke in the oil collecting tank at the lower end of the range hood;

the oil collecting tank purifying device comprises an oil collecting tank purifying box body, an oil collecting tank purifying box cover, a vibrator, a feeding box, a fourth liquid level sensor, a residual oil guide pipe, a second water inlet pipe, a second electronic valve and a second sewage guide pipe;

the electromagnetic valve is arranged on the first water inlet pipe, one end of the electromagnetic valve penetrates through the oil collecting tank purifying tank cover and extends into the oil collecting tank purifying tank body, the other end of the electromagnetic valve is connected with a hot water source, one end of the electromagnetic valve is arranged at the lower end of the wall of the oil collecting tank purifying tank body, and the other end of the electromagnetic valve is connected with a sewage pipeline;

the vibrator, the fourth liquid level sensor and the second electronic valve are all electrically connected with the single chip microcomputer system.

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