KR101020034B1 - Device of cooking odor oil mist treatment for restaurant - Google Patents

Abstract

The present invention relates to an apparatus for treating malodorous remains, wherein the apparatus for treating malodorous remains according to the present invention is a device for treating malodor generated when cooking food, wherein the exhaust gas is cooled and liquefied for gas-liquid separation. Way; Oil and oil removal means for removing the oil liquefied in the cooling means to improve the dust collection efficiency; Dust collecting means for collecting fine particles of oil not removed from the vapor and oil removing means; And plasma processing means for generating a plasma to a pollutant in a gaseous form not removed by the dust collecting means, and converting and oxidizing it into a material having a low odor intensity.

According to the present invention, liquid and solid substances which can be collectively referred to as oil components such as oil vapor, oil mist, and mist generated in a cooking or cooking process can be efficiently removed in advance, The function of the prevention facility can be continuously maintained by washing or exchanging the dust collecting means, and the complex odor-causing substances can be physically and chemically simplified and then converted into stable substances and removed by adsorption or absorption method. According to the discharge characteristics, it is possible to modularize the device by the set capacity and add to the existing device when it is necessary to increase the size of the device, so that it can effectively add and expand without reducing the overall operation efficiency. In providing a device.

Restaurants, odorous substances, oil vapor, oil mist, volatile organic compounds (VOCs), gas-liquid separation, plasma, photocatalyst

Description

DEVICE OF COOKING ODOR OIL MIST TREATMENT FOR RESTAURANT}

The present invention relates to an apparatus for treating odor remnants of restaurants, and more particularly, various odorous substances (odorous substances, volatile organic matters) discharged during cooking or cooking in meat or fish grills or Chinese restaurants (hereinafter referred to as "restaurants"). A compound that can improve the air quality of the city and resolve civil complaints and improve the eco-friendly city image by exhausting the compound through the hood, treating it on the roof or outside of the building, and then emitting it to the atmosphere. It relates to a malodor remains treatment device.

In general, steam and fume are generated in the cooking or cooking process of various restaurant kitchens and halls such as meat and fish grills, Chinese restaurants, and deep fried dishes.

These vapors and fumes include fatty acids generated when meat or fish are grilled or fried, odorous substances having an unsaturated fatty acid vapor or amine group as a main ingredient in fishy fish, ethyl alcohol used as a softener, various spices and flavors of cooking ingredients, Volatile substances, which are the main constituents of odors, carcinogens such as benzopyrene generated when heated and carbonized, and carbon dioxide (CO ₂ ) and fly ash, which are burned with nitrogen oxides (NOx) and carbon monoxide (CO), It is mixed with water vapor to generate off-gases.

Furthermore, the exhaust gas becomes oil vapor containing particulates and is transferred to the exhaust duct, whereby the vapor of fatty acid with high boiling point is first condensed by condensation on the inner wall of the duct inlet and the wing of the exhaust fan, and water vapor condenses and flows into the condensate at the outlet. Vapors, volatile organic compounds, volatiles and carbon monoxide are emitted as is. Therefore, it is necessary to take appropriate treatment for the people in the discharged surrounding area by causing its discomfort with discomfort and subsequent physical reactions (headache, nausea, vomiting).

In this way, the odor-causing substances generated in restaurants vary in type and concentration depending on the type of ingredients used for cooking or the cooking process. That is, even the same meat can be fully recognized that the type and concentration of odor-causing substances are different according to the type of seasoning and the cooking process, and thus it is impossible to determine that a specific prevention technique or device is appropriate. It can be called a pollutant.

In addition, oil components such as oil residues that occur in the cooking process of meat such as beef and pork can be pointed out as a significant obstacle to maintaining the performance of the prevention device. The oil component is liquid or fine when it is in a high temperature state as in the cooking process, but it is easy to process it to some extent, but when the temperature is lowered, the oil component becomes viscous and adheres to the surface or wall of the device, degrading or severely affecting the device. It was investigated that paralysis causes serious deterioration of the performance of the prevention device.

In particular, in the case of the vapor of unsaturated fatty acid and polymer monomer, in the process of liquefying and collecting it, the remains become liquid or solid, which hardens in response to oxygen and water vapor in the air, or becomes fine particles in the solid state to form pipes and condensate. By sticking to the narrow parts, bent parts, protrusion parts and internal filling materials such as adsorption cloth, activated carbon, and filtration material, the mass becomes larger, which lowers the efficiency of the device, thereby making frequent maintenance and exchange of internal filling materials. There is a drawback of increasing the cost.

Meanwhile, in order to control odor generating substances generated in indoor spaces such as restaurants, most of the methods used in Korea to date are very simple methods such as simple ventilation and diffusion dilution after local exhaust, and are commercially developed. There is no control method used.

It is expected that such current control methods will be difficult to resolve odor-related complaints that may occur in the future, and it is necessary to rush to develop technologies by seeking more active control methods.

In addition, the absorption / cleaning method may be introduced as a method for removing the remains and vapors, but dry treatment is most likely because it is expected to be difficult to maintain due to the difficulty of wastewater treatment and, in particular, the fear of freezing in winter. This is why the search for a solution is on the rise.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object thereof is to preliminarily prepare liquid and solid materials which can be collectively referred to as oil components such as oil vapor, oil mist, and fine particles. It can be removed efficiently, and the function of the prevention facility can be maintained continuously by washing or replacing the dust collection method, and the complex odor cause material is physically and chemically simplified and then converted into a stable material by adsorption or absorption method. The present invention provides a restaurant odor remains processing apparatus that is removable and that enables modularization of the device by a set capacity according to the capacity and odor emission characteristics.

In order to achieve the above object, the present invention provides an apparatus for processing malodor generated during cooking, comprising: cooling means for cooling and liquefying intake exhaust gas for gas-liquid separation; Oil and oil removal means for removing the oil liquefied in the cooling means to improve the dust collection efficiency; Dust collecting means for collecting fine particles of oil not removed from the vapor and oil removing means; And plasma processing means for converting and oxidizing the gas into a substance having a low odor intensity by generating a plasma on the pollutant in a gaseous form not removed from the dust collecting means.

In addition, the oil vapor and oil remains removal means in the present invention, the cooling unit is installed in one inlet of the cyclone outer cylinder for adiabatic expansion cooling condensation and liquefaction of the oil contained in the exhaust gas; A heating unit provided on the outer wall of the cyclone outer cylinder and the inner cylinder to heat the condensation and attachment to the inner wall of the cyclone outer cylinder and the inner cylinder so as to be removed when the entire apparatus is stopped in operation; A centrifugal force generating unit provided inside the cyclone inner cylinder to generate centrifugal force to remove oil by a cyclone method; A remains collection unit connected to a lower end of the cyclone outer cylinder and collecting remains to remove oil by a cyclone method; And a relict auxiliary collecting part provided at an upper end of the centrifugal force generating part to residually accumulate relics by a cyclone method.

In addition, the inner wall of the cyclone outer cylinder in the present invention is characterized in that the spiral vane which is a liquid flow passage through which the remains heated by the centrifugal force generated in the centrifugal force generating unit is provided.

In addition, the present invention is characterized in that it further comprises a gas-liquid separation means for separating the gas liquid to be connected to the cooling means to remove the oil component of the oil component.

In addition, the dust collecting means in the present invention is characterized in that the dust collecting plate is detachable.

In addition, the present invention is characterized in that it further comprises a catalytic means connected to the plasma processing means to promote the catalytic reaction to the pollutant in the gas form to decompose the pollutant.

In addition, the catalytic means in the present invention is characterized in that the catalytic reaction by light.

Such an apparatus for treating malodorous remains of the present invention is a liquid and solid substance which may be collectively referred to as an oil component such as oil vapor, oil mist, and mist generated in a cooking or cooking process. It can be removed efficiently, and the function of the prevention facility can be maintained continuously by washing or exchanging the dust collecting means, and the method of adsorption or absorption by converting the complex odor causing substance into a stable substance after physical and chemical simplification It has a removable effect.

In addition, the present invention can be modularized by the set capacity according to the capacity and odor emission characteristics to add to the existing device when the scale of the device is added to the existing device effectively without reducing the overall operating efficiency and expansion and expansion It is to provide a restaurant malodor remains treatment device that makes it possible.

Hereinafter, with reference to the accompanying drawings, the restaurant odor remains treatment apparatus of the present invention will be described with reference to an embodiment as follows.

Restaurant malodor remains treatment apparatus 100 according to an embodiment of the present invention is a local exhaust means 110, cooling means 120, gas-liquid separation means 122, oil vapor and It includes the oil remains removing means 130, dust collecting means 140, plasma processing means 150, catalyst means 160 and the exhaust means 170, and the device can be modularized by the set capacity to increase the device scale Etc. are possible.

The local exhaust means 110 is connected to the hood to inhale to treat and remove odorous substances and volatile organic compounds (VOCs) generated during cooking.

The cooling means 120 is connected to the local exhaust means 110 and cooled by liquefying firstly the exhaust gas forced through the local exhaust means 110 for vapor-liquid separation. Liquefaction rate is improved.

At this time, the cooling means 120 is a restaurant exhaust gas containing a high viscosity oil mist (oil mist) and oil vapor (oil vapor) while passing through the exhaust system (not shown) and the duct (not shown) Cooled and liquefied during transport to the roof of the building, it is preferable to install for more cooling liquefaction.

The vapor liquid separator 122 is connected to the cooling means 120 to first remove greasy oil components liquefied through the cooling means 120.

The oil vapor and oil removal means 130 is secondary to remove the liquefied oil in the cooling means by a cyclone (cyclone) method to improve the dust collection efficiency, which is a high viscosity cold condensed oil (oil vopor) and oil ( This is because oil mist is a coarse particle having a large particle diameter, so that dust collection efficiency is high and the cause of maintenance and failure can be eliminated.

At this time, the oil vapor and oil removal means 130 is a cyclone outer cylinder 131, the cooling unit 132, the outer cylinder heating unit 133, the inner cylinder heating unit 133a, vanes (vane 134), centrifugal force generating unit 135 And the remains auxiliary collecting unit 136 and the remains collecting unit 137.

The cyclone outer cylinder 131 is provided in an upright shape while the inclined tube (131a) is connected to the lower end formed hollow inside, connected to the gas-liquid separating means 122 on one side of the inflow discharged gas and oil into the inflow Is provided.

The cooling unit 132 is installed in the inlet to operate by an applied power source and secondary cooling to condense and liquefy the oil vapor and oil residues contained in the exhaust gas in the adiabatic expansion cooling.

The outer cylinder heating unit 133 is provided on the outer wall of the cyclone outer cylinder 131 and functions to heat the condensation and adhered to the inner wall of the cyclone outer cylinder 131. After the operation of the odor remains processing device 100 is stopped, the condensed and adhered to the inside of the wall surface of the cyclone outer cylinder 131 is heated in the process of cooling the first and second portions to increase the viscosity of the remains to the bottom. Allow it to flow down smoothly. Accordingly, the outer cylinder heating unit 133 may be grafted with a heating wire.

The inner cylinder heating unit 133a is provided on the upper outer wall of the cyclone inner cylinder 131b to heat condensation and adhered to the inner wall of the cyclone inner cylinder 131b, and has the same function as the outer cylinder heating unit 133. Do it.

The vane 134 is a path for generating the vortex and a flow path of the liquid, and is provided on the inner wall of the cyclone outer cylinder 131 to spiral the heated remains by the centrifugal force generated by the centrifugal force generating unit 135. It is formed into a shape. At this time, the vane 134 is installed inside the cyclone outer cylinder 131 at the same angle as the turning angle of the streamline, so that the remains stuck to the wall surface of the cyclone outer cylinder 131 are heated so that the remains having high viscosity regardless of the flow of air flow The lower part can flow smoothly.

The centrifugal force generating unit 135 is installed at the lower end of the cyclone inner cylinder 131b is partially inserted into the inner center of the cyclone outer cylinder 131 is provided in the cyclone inner cylinder (131b) to remove the oil by the cyclone method To generate additional centrifugal force. At this time, the centrifugal force generating unit 135 uses the centrifugal force generated by rotating the eccentric body.

The remains auxiliary collecting unit 136 is installed on the upper end of the cyclone inner cylinder (131b) and when the centrifugal force generating unit 135 operates to generate centrifugal force, the remains are accumulated by the cyclone method, and according to the end of the odor treatment. After the operation is stopped, the condensation, which is attached to the upper end of the cyclone inner cylinder 131b, is heated to increase the viscosity of the remains so that they can flow smoothly to the lower portion.

On the other hand, the accumulation process in which the remains accumulate by the cyclone method in the remains auxiliary collection unit 136 is inclined tube 131a in which the inlet is narrowed inlet flowing while rotating spirally along the vane 134 A spiraling spiral, which is a spiral flow rising in a reverse direction, is formed by changing the direction of the spiral flow downward in the direction of the spiral flow, and the rising swirling vortex floats the remains to form the cyclone inner cylinder 131 through the cyclone inner cylinder 131b. It is introduced and finally condensed and attached to the inner top of the remains auxiliary collection unit 136.

The remains collecting unit 137 is connected to the lower end of the cyclone outer cylinder 131 and flows downward while rotating spirally along the vanes 134 to the main collecting unit where the remains are collected to remove oil by a cyclone method. Heavy ruins are collected through the inclined tube 131a in which the ruins are narrowed in the entrance, and then, the ruins auxiliary collection unit 136 collects the light ruins.

The dust collecting means 140 is a dust or oil filtration unit is grafted to this, and the oil and particulates of the oil that is not removed from the oil remains removal means 130, and the dust collecting plate can be attached and detached after the set time after the user steam After washing, it is reused.

The plasma processing means 150 generates plasma after generating plasma in contaminants (odorous substances and volatile organic compounds) in a gaseous form that is not removed from the dust collecting means 140, and then, the plasma processing means 150 is generated. It reacts with ozone (O ₃ ) and OH radicals to oxidize.

At this time, the plasma processing means 150 generates OH radicals having stronger sterilizing power than ozone to oxidatively decompose various pollutants in the shortest time.

The catalyst means 160 is a photocatalyst, which promotes catalytic reaction by light to gaseous contaminants treated by the plasma processing means 150 to decompose contaminants, and decomposes various bacteria and contaminants. Titanium dioxide (TiO2) and the like are the most commonly used photocatalysts due to their acid resistance, alkali resistance, and harmlessness to the human body. At this time, the photocatalyst is an n-type semiconductor, and when light (ultraviolet) is received, electrons and holes are formed. The formed electrons and holes move to the surface and combine with oxygen and hydroxyl groups, respectively, to generate hydroxy radicals and superoxide anions with strong oxidizing power, and oxidize and decompose organic matter to water and carbon dioxide.

The exhaust means 170 exhausts gas that has been simplified and stabilized by the physical and chemical effects of the plasma processing means 150 and the catalyst means 160 to the atmosphere, and forms a plurality of exhaust ports.

Therefore, the operation sequence of the restaurant odor remains processing apparatus 100 according to the present invention is as follows.

First, various odorous substances (odorous substances, volatile organic compounds) discharged in a cooking or cooking process are exhausted through a hood and are inhaled by the local exhaust means 110 connected thereto.

Next, the odorous substance sucked by the local exhaust means 110 is cooled by the cooling means 120 for cooling liquefaction, and the gas-liquid separation means 122 is installed to remove the oil component of the oil primary. .

Next, the oil is first removed by the oil and oil remains removal means 130 to remove the secondary, which is adiabatic expansion cooling condensation of the oil contained in the exhaust gas flowing into the inlet by the cooling unit 132 And after liquefying, the operation is stopped and the remains of the cyclone outer cylinder 131 are condensed and adhered to the inside of the wall surface of the cyclone outer cylinder 131 by the outer cylinder heating part 133 to increase the viscosity of the remains. Allow it to flow down smoothly. At this time, the remains are collected in the remains collecting unit 137 connected to the lower end of the cyclone outer cylinder (135).

Next, after the centrifugal force generated by the centrifugal force generating unit 135 is reloaded into the cyclone outer cylinder 131, the remains are supplemented at the inner upper end of the remains auxiliary collecting unit 136 using the principle of the axial cyclone. After the operation is stopped, and the cyclone inner cylinder 131b is heated through the inner cylinder heating unit 133a, the viscosity increases, so that it can flow smoothly.

Next, the particulates of the oil not removed by the oil vapor and oil removal means 130 is collected in the dust collecting means 140, and after the set time, the user cleans the dust collecting plate with steam and reuses it.

Next, a substance having a low odor intensity by plasma generated by operating the plasma processing means 150 to a gaseous contaminant (odorous substance and volatile organic compound) that is not removed from the dust collecting means 140. After conversion to and react with the generated ozone (O ₃ ) and OH radicals to oxidize.

Next, after catalyzing the catalytic reaction by the light by the catalyst means 160 to the pollutants in the gas form treated by the plasma processing means 150 to decompose the pollutants and then through the exhaust means 170 Exhaust to

Therefore, in order to efficiently control the odor causing substances generated in restaurants, the prevention facility requires the following conditions.

First, no matter what prevention facility is applied, the installation of grease removal device is required as a pretreatment device. If you do not remove liquid and solid substances that can be collectively referred to as oil components, such as oil vapor, oil mist, mist, etc., performance may be degraded in a short period of time even with the best prevention facilities. Because. In addition, management efforts are required to keep the function of the prevention facility continuously maintained by grasping and cleaning or exchanging the condition of oil components attached to the oil removal device.

Second, unlike general industrial facilities that operate continuously, restaurants do not emit odor-causing substances on a regular basis, but the operation of prevention facilities must meet these characteristics because they are intermittent and change in time. Therefore, the prevention facility should be selected as a device that can be operated at the beginning of cooking and function, and should be a technology that can be applied to a wide range of substances and concentration changes. As a proper technology, a complex technology including plasma or photocatalyst technology satisfies the validity.

In other words, it is efficient to convert complex odor-causing substances into physically and chemically simplified and stable materials and remove them by adsorption or absorption through plasma or photochemical reaction. Some devices require a preheating step in order to function or may have a disadvantage of degrading when a small amount of exhaust gas is introduced, but the plasma or photocatalyst method can function as soon as the device is activated. Is a fairly effective control method.

Third, it is desirable to modularize the capacity of the prevention facility. Emissions from restaurants are not always constant, unlike ordinary industrial facilities, and vary depending on the degree of operation of the cooking facilities. desirable. This method is more advantageous in terms of maintenance costs or operation in case of breakdown. At the same time, it is also considered to minimize the possibility of complaints due to the concentration of odor-causing substances in one place by distributing the final outlets of each prevention facility to several places.

In the detailed description of the present invention described above with reference to the preferred embodiment of the present invention, the scope of protection of the present invention is not limited to the above embodiment, and those skilled in the art of the present invention It will be understood that various modifications and changes can be made in the present invention without departing from the spirit and scope of the invention.

1 is a block diagram showing a restaurant malodor remains treatment apparatus according to the present invention.

Figure 2 is a schematic diagram showing the oil vapor and remains removal means in the restaurant odor remains processing apparatus.

<Description of Symbols for Main Parts of Drawings>

110: local exhaust means 120: gas-liquid separation means

122: cooling means 130: vapor and remains removal means

140: dust collecting means 150: plasma processing means

160: catalytic means 170: exhaust means

Claims (7)

In the device for processing odor generated when cooking food, Cooling means for liquefying the intake exhaust gas for gas-liquid separation; Oil and oil removal means for removing the oil liquefied in the cooling means to improve the dust collection efficiency; Dust collecting means for collecting fine particles of oil not removed from the vapor and oil removing means; And Plasma processing means for generating a plasma to the pollutant in the form of gas not removed by the dust collecting means to convert and oxidize to a low odor intensity material; The vapor and remains removal means, A cooling unit installed at one inlet of the cyclone outer cylinder to adiabatic expansion cooling condensation and liquefaction of the oil vapor contained in the exhaust gas; A heating unit provided on the outer wall of the cyclone outer cylinder and the inner cylinder to heat the condensation and attachment to the inner wall of the cyclone outer cylinder and the inner cylinder so as to be removed when the entire apparatus is stopped in operation; A centrifugal force generating unit provided inside the cyclone inner cylinder to generate centrifugal force to remove oil by a cyclone method; A remains collection unit connected to a lower end of the cyclone outer cylinder and collecting remains to remove oil by a cyclone method; And It is provided on the top of the centrifugal force generating portion remains remains auxiliary collection unit accumulates auxiliary by the cyclone method; restaurant odor remains processing apparatus comprising a. delete The method of claim 1, The inner wall of the cyclone outer cylinder is odor remains treatment apparatus is characterized in that the spiral vane which is a liquid flow passage through which the remains heated by the centrifugal force generated by the centrifugal force generating unit is provided. The method of claim 1, And a gas-liquid separating means for separating the gas-liquid so as to be connected to the cooling means to remove the oil component. The method of claim 1, The dust collecting means is odor remains treatment apparatus for restaurants, characterized in that the dust collecting plate is detachable. The method of claim 1, And a catalytic means connected to the plasma processing means to catalyze a contaminant in gaseous form to decompose contaminants. The method of claim 6, The catalytic means is odor remains treatment apparatus for restaurants, characterized in that catalyzed by light.

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