Cooking oil fume odor concentration purification device

Abstract

The utility model belongs to oil fume purification device, specifically is catering oil fume stench concentration purification device, including air intake and fan, fan is used for the outside air gas is drawn into the mixing box through air intake, dosing proportion pump, enzyme concentrate liquid and make up water are on -line preparation as working fluid according to setting proportion, biological enzyme container, store enzyme concentrate liquid or ferment activated enzyme stock solution, water valve, solenoid valve and float ball valve, water valve is connected with outside water supply, maintains the liquid in mixing box and is located in setting interval, solenoid valve sets up on the pipeline between dosing proportion pump and mixing box to control water supply on-off, atomization subassembly, after working fluid atomization, is transported into catering special oil fume exhaust pipeline, and is mixed with oil fume peculiar smell gas in pipeline, electric control unit, including air switch, power, connector and controller, make active enzyme base working fluid atomization into micro - nanometer level carrier, after contacting with peculiar smell molecule, capsuleization capture and enzymatic conversion occur, realize the rapid harmless of gas phase peculiar smell.

Description

Technical Field

[0001] This utility model pertains to oil fume purification devices, specifically a device for purifying the concentration of odorous oil fumes from catering establishments. Background Technology

[0002] The exhaust fumes from the catering industry typically consist of oil mist particles, volatile organic compounds (VOCs) generated from pyrolysis or seasoning volatilization, sulfur / nitrogen-containing odor molecules, and water vapor. Current treatment methods often combine mechanical capture, filter cartridges for oil mist removal, and ultraviolet or plasma treatment. While these methods are effective at removing large oil mist particles, their effectiveness in further reducing low-concentration, small-molecule, polar, or high-diffusion-coefficient odor molecules (such as ketones, aldehydes, and aromatics) and PM2.5 is limited. To meet the control requirements for NMHC, odor concentration, and particulate matter, there is an urgent need for a highly efficient, low-by-product, and sustainable secondary purification technology that can effectively remove residual odors and small-molecule VOCs after the initial oil mist purification. Utility Model Content

[0003] The purpose of this invention is to provide a device for purifying the concentration of odor from catering fumes. By atomizing an active enzyme-based working solution into a micro-nano-level carrier, the odor molecules are encapsulated and captured and enzymatically converted upon contact, thereby achieving rapid and harmless removal of gaseous odors.

[0004] The present invention provides a catering oil fume odor concentration purification device, which includes a fan connected to the air inlet. The fan draws air into the mixing box and is used to draw outside air into the mixing box through the air inlet.

[0005] A dosing ratio pump is used to prepare the working solution online by mixing enzyme concentrate and makeup water in a set ratio.

[0006] Biological enzyme containers are used to store concentrated enzyme solutions or fermented and activated enzyme stock solutions.

[0007] Water valve, solenoid valve and float valve. The water valve is connected to the external water supply. The float valve is used to maintain the liquid in the mixing tank within the set range. The solenoid valve is installed on the pipeline between the dosing proportioning pump and the mixing tank to control the water supply.

[0008] The atomizing component, located inside the mixing chamber, is used to atomize the working fluid and mix it with the drawn-in oily fumes and odors.

[0009] The electrical control unit includes air switches, power supplies, connectors, and controllers.

[0010] The beneficial effects of this utility model by adopting the above structure are as follows:

[0011] This device forms micro-nano aerogels by atomizing bio-enzymes, achieving "capture + enzymatic transformation" of odor molecules, and simultaneously coagulating and collecting fine particulate matter. Without introducing activated carbon saturation or secondary pollution, it significantly reduces the odor concentration, small molecule VOCs and PM2.5 at the exhaust outlet, improving secondary purification efficiency and long-term compliance stability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the bio-enzyme atomization delivery operation of this utility model.

[0013] Figure 2 This is a schematic diagram of the purification process of this utility model. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0015] See Figure 1 The air intake purification device proposed in this utility model includes a fan 1 and an air outlet 2. The fan 1 draws air into the mixing box 3 through the air inlet 4 to form micro-nano aerogel with the active enzyme.

[0016] Specifically, the active enzyme is prepared into a working solution online using a proportional pump 5 with the target concentration and water replenishment.

[0017] The working fluid is atomized into micro-nano droplets with high specific surface area. Under the synergistic effect of turbulence, electrostatics and surface activity, the droplets form a short-life micro-nano aerogel framework, which is transported to the catering-specific exhaust pipe 6 through the pipeline of the catering oil fume odor concentration purification device. It quickly captures and encapsulates odor molecules, and completes enzymatic bond breaking and hydrolysis reactions at the droplet interface, transforming the target molecules into stable compounds with low odor and low volatility, thereby achieving the removal of odor and small molecule VOCs.

[0018] Meanwhile, the mist droplets have the effect of coagulation, enlargement and capture of residual fine particulate matter, further reducing particulate matter emissions.

[0019] The dosing ratio pump 5 is used to prepare the working solution by mixing the enzyme concentrate and water in a set ratio.

[0020] The dosing ratio pump 5 is connected to the biological enzyme container 8 via a hose 7 below, with the inlet connected to the water supply and the outlet connected to the mixing tank 3.

[0021] Bio-enzyme container 8, for storing concentrated enzyme solution or enzyme stock solution activated by simple fermentation, can be a replaceable bucket / bag;

[0022] It also includes a water valve 9, a solenoid valve 10, and a float valve 11, which are used to maintain the working fluid level and automatically replenish water;

[0023] Specifically, the external water supply is connected to the water valve 9 and enters the mixing tank 3 through the dosing ratio pump 5. The solenoid valve 10 is located on the pipeline between the dosing ratio pump 5 and the mixing tank 3 to control the on / off of the external water supply.

[0024] The float valve 11 is located inside the mixing tank 3. Its float moves up and down with the liquid level, causing the valve core to open and close, so that the liquid level in the container is stabilized within the set range.

[0025] The atomizing component 12 is located inside the mixing chamber 3 and is equipped with 4-8 ultrasonic or pneumatic atomizing nozzles. The biological enzyme solution in the mixing chamber is atomized by the atomizing component and then combined with the oil fume and odor.

[0026] The electrical control unit includes an air switch 13, a power supply 14, a connector 15, and a controller 16.

[0027] Among them, the air switch 13 is responsible for the power-on, power-off and overload and short-circuit protection of the whole machine, and also serves as the main switch for emergency shutdown and maintenance isolation;

[0028] Power supply 14 converts mains power into stable DC power to provide operating voltage for controller 16, fan 1, solenoid valve 10, atomizing component 12, etc.

[0029] The connector 15 is used for centralized access, distribution and relay of power and signals. The power supply 14 supplies power to various electrical appliances through the connector 15.

[0030] It also includes a cooling fan 17, which continuously extracts hot air from the equipment during operation and exchanges heat with the outside air to prevent the electrical equipment from overheating.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A device for purifying the concentration of cooking fumes and odors, characterized in that, Includes a fan connected to the air inlet, which draws air into the mixing chamber. The fan is used to draw in outside air through the air inlet into the mixing chamber and discharge it through the air outlet into the catering-specific exhaust duct. A dosing ratio pump is used to prepare the working solution online by mixing enzyme concentrate and makeup water in a set ratio. Biological enzyme containers are used to store concentrated enzyme solutions or fermented and activated enzyme stock solutions. Water valve, solenoid valve and float valve. The water valve is connected to the external water supply. The float valve is used to maintain the liquid in the mixing tank within the set range. The solenoid valve is installed on the pipeline between the dosing proportioning pump and the mixing tank to control the water supply. The atomizing component, located inside the mixing chamber, is used to atomize the working fluid and mix it with the drawn-in oily fumes and odors. The electrical control unit includes air switches, power supplies, connectors, and controllers.

2. The catering fume odor concentration purification device according to claim 1, characterized in that, The dosing ratio pump is connected to the bio-enzyme container via a hose, with its inlet connected to an external water supply and its outlet connected to the mixing tank.

3. The catering fume odor concentration purification device according to claim 1, characterized in that, The water valve is connected to an external water supply and replenishes the mixing tank with water via the dosing ratio pump; the solenoid valve is located on the pipeline between the dosing ratio pump and the mixing tank and is used to control the on / off of the external water supply.

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