KR20120040689A

KR20120040689A - Cenopt hood exhaust ventilition

Info

Publication number: KR20120040689A
Application number: KR1020120020696A
Authority: KR
Inventors: 진남기
Original assignee: 진남기
Priority date: 2012-02-29
Filing date: 2012-02-29
Publication date: 2012-04-27

Abstract

Canopy hood is installed with axial flow fan at the part where hood and exhaust duct are connected, hood guide vane is installed inside hood and longitudinal direction at the bottom Sirocco 휀 was installed in the lateral and transverse directions, and Sirocco 에도 was also installed in each open direction of the heat source equipment side to solve the problem by simultaneously operating the entire 전체.
The present invention was created in view of the above-described problems in the prior art, and accelerates the contaminated air diffused outside the hood toward the hood while pressurizing in the same direction as the rising air by the lower discharge air. It is a suction device that attracts and increases the exhaust efficiency.
The canopy hood exhaust device of the present invention is an air curtain by the upper and lower angle adjustment sensors when the angle is adjusted so that the discharge air diffusion distance of the rocco 시 in the horizontal type of the side of the heat source device falls within the sirocco 휀 suction radius of the upper side. When the angle is adjusted to the optimum state, the contaminated air is prevented from spreading to the outer periphery of the hood, and at the same time, each fan is operated so that the contaminated air has a faster moving speed, thereby optimizing indoor polluted air discharge efficiency. There is the characteristic that the room becomes comfortable
According to the present invention, it is characterized in that the exhaust hood guide feather installation, the hood upper and lower, the fan installation, the axial flow of the exhaust duct driving at the same time configured to maximize the exhaust efficiency

Description

Canopy Hood Exhaust System {CENOPT HOOD EXHAUST VENTILITION}

The present invention relates to an apparatus for exhausting air by using a canopy hood, in which a hood is installed on an upper portion of a pollution source to collect and discharge a large amount of heat and polluted air due to an upward airflow to an upper canopy hood.

The characteristic of the canopy-type hood is that it is suitable for the place where hot rising air flows, and the efficiency is drastically reduced if there is no rising air flow. The intake port surrounding the whole or surrounding part of the source is called a hood, and the air flow at Guide it to the hood and exhaust it

It is a method that requires attention to use because it is easy for the worker to breathe the dirty air by working under the hood opening. In general, the exhaust hood of a general kitchen uses a canopy hood and is produced when cooking with a cooking device that uses heat in the kitchen. Hot air and rapid discharge of various polluted air have been a problem, and the prevention of polluted air diffusion is closely related to the surrounding airflow.

In some parts of existing kitchens, some places provide air conditioning air to the cooking workers by spot cooling. However, in the kitchen, air conditioning is not possible. After a rapid bacterial breeding, the food in the kitchen may be damaged, and the cooked food or food ingredients may be deteriorated. Therefore, the food materials used should be frozen and refrigerated immediately after preparation.

Patent Registration 10-0428585 Air curtain is formed on both sides and the front of the hood to form an air curtain, and air is injected from the front of the hood to the inside to form a discharge blocking air curtain. It is described as forming an air curtain in a downward direction in which heat air flows from the upper hood, which is a method of injecting air from the front side of the hood to the inside by exhausting the exhausted air to the inside. Application number 10-2003-0032663 The air purifier for the range is provided. The hood lower gas stove with the air purifier built in and the air curtain discharged from the discharge port fixed in the vertical direction from the side are formed toward the hood. We describe by doing Patent Registration 10-0599860-0000 For range hoods with a collecting shade and a straight conduit with dampers installed, a multistage axial flow fan is provided between the hood and the exhaust duct or exhaust bar. Utility Registration Patent 20-0435723-0000 A hood structure for a kitchen, comprising: an exhaust duct, an exhaust pipe coupled to the exhaust duct and having an exhaust motor therein, and a filter for installing a group food kitchen hood having an inclined lozenge shape which is widened downwardly, wherein the cover is provided. An auxiliary hood for conveying the odor and heat formed in the upper part of the cooking chamber to the inside of the cover I describe it as being attached Patent Registration 10-0875206-0000 The fume hood system includes a housing having an experimental space therein with a housing shape, a door configured to be lifted and lowered on a front surface of the housing to open a part of the experimental space to allow indoor air to flow therein, and A blower built in the upper part to suck air containing noxious gas generated in an experiment, a discharge duct for discharging air containing noxious gas sucked from the blower to the outside, and an upper part of a door inside the housing, It is described as forming a tee line injection type air curtain that controls the amount of indoor air introduced by injecting air introduced from the outside into the test space.

The hood is a device that collects and discharges contaminants floating in the air such as odors, hot air, and gas from the place as close as possible to the source, and prevents them from spreading into the room. It surrounds or surrounds the entire source of pollutants, and the air flows toward the hood at the scattering limit point of the pollutant, exhausting it.However, when it is far from the inlet due to the nature of the air, the suction wind speed decreases and it loses its influence almost when it falls more than 1M. Hot air heated in various heat source devices under the hood generates an upward airflow. At this time, if the air curtain is formed in the direction opposite to the upward air flow, the polluted air rising with the heat collides with the upward air flow caused by the buoyancy, and the airflow is disturbed, and the polluted air diffuses rapidly into the room. The installation of a centrifugal fan at the inlet of the exhaust duct connected to the hood can increase the surface wind speed inside the hood. According to the suction theory of 속도, the speed of the distance away from the inlet 만큼 by the suction diameter falls below 1/10. Installing an auxiliary hood inside the hood does not further improve suction performance Divide the distance from the hood opening into equal parts and measure the velocity at each point to obtain a constant velocity curve. The hood must be designed using this constant velocity suction line and the air flow is directed to the hood at the contaminant's scattering threshold. Therefore, the exhaust from the hood can not be limited, based on this theoretical basis is forced to consider the forced exhaust method. If the double hood type or outer hood type is considered, the double hood type draws airflow from the slot with double openings. At this time, the suction wind speed of the outer slot area is faster than the center, but the outer layer hood type has better overall suction effect. The axial flow outlet exits at nearly constant diffusion angle (approximately 20 °) while attracting and mixing ambient air, and the central velocity decreases inversely with distance. According to the experiment, when the discharge flow velocity of the discharge port is about 20MM and the discharge velocity is vertically upward at 8.5M / S, the diffusion distance (ab) of the airflow is about 600MM or more and the wind speed is about 1.2M / S at about 1.6M. Can be measured to obtain a result similar to the diffusion distance spread at the airflow diffusion angle The airflow is felt when measuring the diffusion distance, but the value is not included in the anemometer. To date, most air curtain methods ignore these diffusion angles and describe that the discharged air is discharged straight out without the diffusion angle in the upper or lower discharge direction. The canopy hood is used when there is hot rising air, and the hot rising air and contaminated air are discharged only when it reaches the hood. In general, the food and cooking equipment in the cooking appliance to be heated during the first cooking in the kitchen endothermic, so most of the heat is absorbed, but when the cooking water starts to boil, most of the heating heat is dissipated. As it spreads, the temperature and humidity of the kitchen rose sharply, and the polluted air diffused into the room. Therefore, when designing a kitchen, the number of ventilation of the kitchen is set at 50 to 60 times / h, and the hot and humid air and polluted air of the kitchen are discharged. In general, heat radiators and ovens vary depending on the operating temperature, but convection causes heat flow of 0.15-0.4 M / S. The hood has the maximum effect with a small displacement. The larger the displacement, the larger the auxiliary equipment and operation costs. On the contrary, the smaller the displacement, the less the equipment and operation costs, but the emission effect is not enough. The amount of ventilation required depends on several conditions, such as the type of room, the number of occupants, the harmful substances generated indoors, and the outside air. In general kitchens, hoods are installed and local exhaust is exhausted due to heat, steam, smoke, and smell when cooking food. Overall ventilation is about 10% of the amount of ventilation in the kitchen for leaking from the hood and coming from a device that cannot be treated with the hood. If the hood does not interfere with the work, it is better to open the three-sided or two-sided opening rather than the four-sided opening, and to lower it as high as possible. The air supply should not be provided close to the hood. Control speed is the speed required to attract contaminants into the hood and is the control speed required to draw the contaminants into the hood, up to the point where the initial velocity of contaminants from the source to the opposite side of the hood becomes zero. Must be reached to properly handle contaminants The legislation establishes the required air volume for the following purposes: The amount of ventilation necessary for maintaining the health of the occupants and the comfort of the room by discharging indoor odor of indoor gas and introducing clean air from outside In addition, the experimental fume hood of the laboratory (Fume hood) is a device for easily discharging various harmful gases generated when performing a chemical experiment to the outside of the laboratory. Some harmful gases emitted from fume hoods are lighter than air, while others are heavier than air. As such, the heavier gas than the air sinks to the bottom of the test space, there is a problem that the suction means installed on the upper side does not reach. The combustion of fuel by the combustion mechanism is a problem of the oxygen concentration of air, and when the combustion gas is directly released into a room in a poorly ventilated room, the oxygen concentration gradually decreases. The result is increased CO emissions from incomplete combustion. Normally, the oxygen concentration in the air is about 21%. Even when the device is completely burned, the incomplete combustion becomes remarkable when it is 19% or less, and especially when the concentration is 16-17% or less, the amount of CO generation is rapidly increased. The amount of carbon dioxide gas and carbon monoxide caused by the oxygen and the combustion gas supplied when various combustion apparatuses burn in the state where the oxygen concentration in the air is less than 18% increases. Hazardous gases generated in various working environments or indoors are very diverse, including carbon monoxide, sulfur oxides, nitrogen oxides, carbon dioxide, hydrogen sulfide, and hydrogen fluoride due to incomplete combustion of fuels. However, the most problematic is CO gas. CO is contained in the breath of about 1 ppm and does not matter a small amount, but the problem is that a large amount is released by incomplete combustion of the fuel. It is a highly odorless, colorless, odorless gas that has a high binding force with hemoglobin and causes oxygen deficiency in blood tissues. In general, the CO content is limited to 10 ppm or less as an indoor reference value. There are various dusts and smokes in the floating dust, and the harmfulness of the dust depends on the place where the dust is generated, the size, shape, chemical properties, and concentration of the dust. In general, when the diameter of the dust particles is 0.1-1.0 μm, the deposition rate of the particles in the alveoli is high. The building management standard covers dust with a diameter of 10 µm or less. Regarding dust chemistry, dust containing a lot of free silica is likely to cause silicosis

The canopy hood is a hood that uses hot rising air flow. A horizontal siro nose is installed on each side of the heat source device to maximize the suction efficiency when collecting and exhausting air. Phosphorus-contaminated air is sucked into the end of the hood and moved to the exhaust duct by an airflow guide guide installed inside the hood, and the centrifugal axial flow fan is simultaneously combined with the hood and the exhaust duct to move it out quickly.

At this time, if the discharge air flow angle is adjusted in consideration of the discharge diffusion angle of the outlet airflow of the horizontal sirocco 설치된 installed on one side of the lower heat source device, the polluted air is not diffused to the outside and the entire air is sucked into the end of the upper hood. Will solve

The present invention was created in order to solve the above-mentioned problems in the prior art, by using air curtains to contaminate air diffused to the outside of the hood while pressurizing in the same direction as the upward air flow to the lower air discharge. It is an object of the present invention to provide a suction device that can be collected toward the exhaust hood to increase the exhaust efficiency.

The device configuration is simple and can be installed regardless of the shape of the exhaust port. It can be used in existing equipment without additional equipment and can be used to save money and can be used in factories, homes, restaurants, and large kitchens that generate a lot of pollutants.

In order to solve this problem, the present invention canopy hood exhaust device by installing a horizontal siro nose in the side of the heat source device to adjust the angle so that the air diffusion distance of the air curtain discharged from the discharge port falls within the upper siro nose suction radius Essentially, the air curtain should be adjusted to the optimum angle by the angle adjusting sensor installed on the upper and lower sides. If the angle of the air curtain is installed out of the diffusion angle, the heated contaminated air diffuses rapidly into the room. Adjusting the airflow of the air curtain is characterized in that it can prevent the spread of contaminated air to the outer periphery of the hood.

Simultaneously operating the upper and lower sirocco 휀 and the centrifugal axial flow 의 of the exhaust duct connection, the contaminated air moves to the upper hood and the contaminated air moved by the guide vane installed inside the hood is connected to the exhaust duct. It is characterized in that it can be discharged quickly by the centrifugal axial flow fan of the inlet

In addition, a sensible heat exchanger is installed at the exhaust duct connection to recover waste heat of a large amount of contaminated hot air, and is used as a preheating load for hot water heating to recycle energy.

As described above, the canopy hood exhaust device of the present invention has the effect of creating a comfortable space by collecting the exhaust air flow and contaminated air from the source of the contaminant in a general kitchen or factory toward the upper hood to exhaust the condensed air.

By using the present invention, high temperature polluted air is not diffused, and the number of ventilation can be significantly reduced, thus reducing the capacity of the kitchen ventilation fan and installing a sensible heat exchanger to recover waste heat of a large amount of contaminated hot air at the exhaust duct connection. By using it as preheating load for hot water heating, energy is recycled and deodorizing unit is installed at the end of duct to prevent odor spreading to the outside.

The unit is equipped with a unit cooler to enable the worker to spot air conditioner or the entire air conditioner in the kitchen.

It is a facility that can reduce energy and save energy, which is the government's recommended standard for green products.

1 is a front view of the present invention and enlarged cross-sectional view of the main portion showing the structure of the present invention, which shows the installation state of the upper and lower sensors and vertical and horizontal side of the siroccok.
Figure 2 shows the shape of the guide feather of the hood according to the present invention and the installation state of the lighting lamp, the floating oil collection filter and by installing the guide feather inside the hood can improve the surface wind speed of the air flow than the hood without the existing guide feather
Fig. 3 is a schematic view of the sirocco discharge outlets mounted on the transverse sides of the set of direction control housings and the heat source devices.
4 is a composite installation of the general hood 휀 installation and sliding hood installed in a general residential kitchen.

The objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

First of all, the same components or parts in the drawings are denoted by the same reference numerals as much as possible.

Figure 1 is a front view and enlarged cross-sectional view of the present invention showing a schematic configuration of the present invention, showing the installation state of the upper and lower sensors and vertical and horizontal side of the siro nose.

The canopy type kitchen exhaust apparatus according to the present invention is formed as follows.

A sensible heat exchanger (15) and a centrifugal axial flow fan (8) are installed at the inlet of the exhaust duct connector (9) connected to the canopy hood body (1), and a sirocco (2) is installed at the end of the hood body. It is characterized in that the upper sensor 4 is installed at the side end

The contaminated air is sucked into the hood with the raised air flow (d) without disturbing the air curtain air flow (c) sucked into the intake opening (6) of the hood sirocco (2) together with the lower air curtain (c) air flow.

It is quickly moved to the exhaust duct by the guide vane 3 which is the airflow oil inside the hood.

The lower sirocco fin 2-1 is provided with a direction adjusting cap 4-1 at one side of the sirocco fin discharge port 5, and one side of each of the open heat source devices as illustrated in FIGS. The horizontal sirocco 휀 is installed at the side, and the housing set 10 for adjusting the discharge port direction of the sirocco 배치 is arranged.

Figure 2 shows the installation state of the air flow guide guide feather (3), the lamp 12, the floating oil collection filter 11 in the hood according to the present invention, if the guide feather (3) is installed in the hood there is no existing guide feather Can improve the surface wind speed of airflow than the hood

The direction control of the shock was formed to be rotated by the housing set 10 of FIG.

The siro nose 로 2-1 for air injection of the heat source device has a long length as illustrated in FIG.

The discharge port 5 was formed laterally.

In forming a body hood having an open bottom and having a rectangular and square shape, a space portion connected to an exhaust duct of the hood is formed, and a sensible heat exchange device for recovering waste heat of hot heat at the connection of the exhaust duct 9 is formed. (15) was installed and the wastewater was recovered for hot water preheating by connecting the water supply pipe (16), and an axial flow blower (8) was installed at the inlet.

In addition, at the end of exhaust duct, install deodorization unit not shown in the drawing to prevent odor diffusion of polluted air during discharge. In factory, back filter, cyclone and air washer unit are installed to prevent air pollution.

In the middle of the hood (1), both the inclined surfaces of the mist collecting or the fume suspended oil collecting filter 11 was installed, and the lighting device 12 was installed in front of the cloth of the hood.

In particular, each side of the lower side of the air blowing sirocco 휀 (2-1) is formed integrally with the heat source equipment sirocco 휀 fixing frame (7), the air curtain air flow (c) is formed at the sirocco 휀 discharge port (5) and the upper sirocco (2) The upper and lower sensors coincide with each other by the direction adjusting housing set 10 for adjusting the angle of the inlet until the lower sensor 4-1 and the upper sensor 4 make a predetermined angle when driving the lower sirocco. Is displayed on the microcomputer panel and the motor for angle adjustment is stopped.

The air curtain is formed by the discharge port 5 of the lower sirocco 휀 2-1, where the angle of the vacant outlet 5 is part of the (a) of the diffusion length ab of the airflow in the upper siro 휀 suction port 6. It must be within the effective radius of the inlet 6 of the upper hood lower part 2 so that all the heat and contaminated air is sucked in to prevent diffusion to the outer side of the hood.

At this time, each siro co 제어 is controlled to the optimum air flow state by the rotation speed control using inverter.

If the hood (1) is open on four sides, install the nose (2-1) and suction (2) noses respectively on the four open surfaces, and install only on the open side when one side is blocked on the wall.

In addition, FIG. 4 shows that the sliding hood 14 coupled to the upper hood cabinet 18 is drawn out of the hood cabinet when the kitchen hood shock 17 is installed in the general kitchen and the sirocco shock 2-1 for lower air curtain is driven. The angles of the sensor 4 and the lower sensor 4-1 installed at the end of the sliding hood 14 are automatically and manually adjusted, and the 휀 (2) installed at the end of the sliding hood is also operated. Is in place.

In the general kitchen diagram, the centrifugal Excel 휀 (8) of the unmarked exhaust duct connection is also operated when the lower sirocco 가동 is operated.

In addition, by using the air supply duct supplied from the central blower may be formed by installing an air jet line diffuser on one side of the lower heat source device and attaching an angle adjusting device.

As described above, when the air stream is formed, the air curtain discharging air flows synergistically with the air flow, and the moving speed of the air stream is made faster.

The air curtain's airflow moves quickly toward the hood, preventing the contaminated air from spreading around, thereby releasing the contaminated air.

When the present invention is applied to a hood device installed in a factory, it is possible to promptly discharge the polluted air in the factory by achieving more than the control wind speed specified in the comfortable working conditions for workers and the installation performance of the local exhaust system of the Ministry of Labor.

At the end of the exhaust duct, a deodorization unit, a back filter, a cyclone, an air and a shower unit are installed to prevent the spread of odor of contaminated air during exhaust.

In addition, where there is no upward air flow, the artificial upward air flow can be used to quickly discharge polluted air.

(1) food body
(2) upper horizontal type shiroko 휀
(2-1) Lower horizontal type shiroko 휀
(3) air flow guide
(4) upper sensor
(4-1) Lower sensor
(5) Shiroko 휀 outlet
(6) upper Shiro Cohen intake
(7) heat source equipment
(8) exhaust duct inlet centrifugal axial flow fan
(9) exhaust duct
(10) Directional Housing Set
(11) Floating oil collection filter
(12) lighting devices
(13) grill crater
(14) sliding hood
(15) sensible heat exchangers
(16) Water supply piping
(17) Hood
(18) Hood ground
ab air flow diffusion distance
c Air curtain
d rising air

Claims

An airflow guide vane 3 is formed inside the hood connected to the duct,
Forming air curtains with sirocco shocks (2-1) or multiple small centrifugal shocks for air curtains to prevent the spread of contaminated air;
Forming a suction port by using a horizontal sirocco 휀 (2) or a plurality of centrifugal fans to form an air inlet of the same length as the hood length at the lower end of the hood to suck the airflow from the air curtain;

A device for fixing the angle of the discharge port of the lower side of the heat source device so that the diffusion distance (a) of the discharge port air flow is sucked into the inlet radius of the upper tank,

The lower discharge port angle is automatically (or manually) adjusted by the hood side and the heat source device up and down sensors (4,4-1) so that the diffusion distance (a) of the discharge port air flow is sucked into the inlet port of the upper fan. Unit driving unit

Using the central air supply and exhaust doctor,
Fixed or automatically or manually adjusts the discharge angle of the discharge port of the line diffuser connected to the air supply duct on the side of the lower heat source device so that the diffusion distance (a) of the air flow according to the discharge angle is sucked into the suction constant velocity line of the hood,
A device that installs a separate exhaust suction duct at the end of the hood, which has the effect of installing a suction fan at the end of the hood, so that it has the same effect as the combined operation of the fan.

In places where there is no rising air flow, it creates an artificial rising air by using 에 at the pollution generating part.

Exhaust system provided with a device capable of combined operation as described in claims 1 and 2 which prevents the spread of pollutants by air curtain (c)

Suction hood (2) is installed at the end of the sliding hood by installing a sliding hood (14) that can be inserted into the upper part of the basic hood 에 in a general apartment kitchen, and when the lower gas stove is used, the sliding hood protrudes (2- 1) Air curtain (c) airflow angle of 1) is fixed, automatic or manual to be sucked into the upper suction fan (2) to operate in association