KR101623329B1 - Odor removal apparatus for pan on electric heater - Google Patents

Abstract

The present invention relates to a deodorization apparatus with a pan that enables to maintain a comfortable room environment by purifying cooking fumes, such as smoke and odors generated during cooking. A deodorization apparatus with a pan comprises: a cooking pan having a cover and a discharge pipe formed at an edge side on an upper surface of a bottom portion to discharge, to the lower side, cooking fumes generated from the inside where food is accommodated; and a cylindrical combustion pipe installed on a lower surface of the bottom portion of the cooking pan and having a plurality of heating spaces formed therein. The plurality of heating spaces formed at the edge side of the combustion pipe communicating with the discharge pipe to enable gas to move. The cooking fumes are pyrolyzed and purified by hot heat of a heating means while moving from the heating spaces at the edge side to the heating spaces at the central side. The high temperature gas passing the heating spaces is discharged to the bottom part of the pan through the discharge hole formed at a central part of the upper surface of the combustion pipe and reused as cooking heat.

Description

Technical Field [0001] The present invention relates to a fan deodorization apparatus for an electric heater,

The present invention relates to a fan deodorizing apparatus capable of maintaining a comfortable indoor environment by purifying cooked soot such as smoke and odor generated during cooking. More specifically, the present invention relates to a device for forming a discharge pipe on the upper surface of a bottom portion of a fan, connecting the discharge pipe and a combustion pipe provided on a lower surface of the bottom portion of the fan,

When cooking with a cooking pan or bending a fish, the contents inside the pan splash out and it is troublesome to clean around the stove. A cover is used to prevent such a phenomenon. However, a typical cover does not prevent smoke and odors from leaking out of the pan during cooking.

To solve these problems, the kitchen has a cooking hood that discharges contaminants generated when cooking. However, although the range hood is located at a relatively far distance from the place where the actual cooking is performed, even if the dish is cooked on the heating plate just below the range hood, the pollutant can not be completely discharged to the outside through the range hood, there is a problem.

One of the most effective ways to solve various problems when cooking with a fan is to remove it as soon as smoke and smell occurs. Currently, a commercially available product that can reduce smoke and odor is a splatter screen. The activated carbon is mixed with the screen covering the upper opening of the fan to prevent the contents in the fan from splashing out, and also has the function of removing the smell. However, the anti-fogging screen is difficult to clean after use, and the activated carbon gradually becomes less active, reducing the odor removal effect.

Korean Patent Nos. 10-0974799 and 10-0888727 disclose a method for removing combustible harmful substances by discharging and burning cooking soot into a firebox through an exhaust pipe and a dispersing plate formed on the bottom of the cooking pan. However, since the cooking soot discharged from the dispersing plate in this way is in contact with the flame, that is, the residence time required for burning is too small, the effect of reducing the combustible harmful substances is insignificant.

Examples of heating means used for cooking include a flame generated by oxidation of fuel, a heater connected to a power source, and the like. The temperature of the flame used here is 1,000 ° C or higher. In the case of a heater using electricity, the surface temperature is maintained between 700 ° C and 800 ° C. On the other hand, in the US Environmental Protection Agency (EPA-452 / F-03-022: Air Pollution Control Technology Fact Sheet, page 3), general volatile organic compounds (VOCs) Lt; RTI ID = 0.0 > C, < / RTI >

According to the above data, flames and heaters used in cooking have a high temperature to pyrolyze cooked contamination and are effectively pyrolyzed if the pollutants have adequate residence time at this temperature.

The present invention forms a discharge pipe on the upper surface of the bottom portion of the fan and connects the discharge pipe and the lower portion of the bottom portion of the fan to connect the combustion pipe having a plurality of heating spaces to reduce the pollutants. The combustion tube is heated by the heating means to be maintained at a high temperature and the flow passage is formed long so as to secure a sufficient residence time for pyrolyzing the cooking soot passing through the heating space,

Further, the cooking soot is not only pyrolyzed while passing through the heating space, but also is exhausted to the center of the upper surface of the combustion tube to heat the bottom of the fan.

Registered patent: 10-0951387 (deodorizing cooking vessel). Registered Patent: 10-0771494 (Deodorizing Frying Pans). Registered patent: 10-0974799 (cooking fan equipped with exhaust device). Registration Utility Model: 20-0445439 (Frying Pans Burning Odor). Registered Patent: 10-0530695 (Frying Pans Burning Odors). Registered patent: 10-088727 (odor and smoke removal double sided fan).

When cooking with a fan, smoke and smell may spread inside the room and cause discomfort. The present invention provides a deodorizing device that sucks and removes cooking soot generated when a food is heated from a fan as soon as it is generated, thereby maintaining a pleasant indoor environment.

The fan deodorization apparatus according to the present invention is characterized in that the fan deodorization apparatus according to the present invention is provided with a lid for sealing the upper opening portion and is formed to be protruded toward the edge of the upper surface of the bottom portion, A fan; Heating means for radiating heat using electricity; And a flat cylindrical combustion tube which is located between the fan and the heating means and has an upper surface, a side surface and a lower surface which are detachably connected to the lower surface of the bottom portion of the fan.

The fan deodorization device is provided with an inlet pipe protruding from one side edge of the upper surface of the combustion tube and connected to the inside of the discharge pipe so as to allow gas flow,

An exhaust port having a perforated hole is provided in the central portion of the upper surface of the combustion tube,

And a plurality of supporting pillars formed to protrude from the upper surface of the combustion tube and contact the bottom of the fan to maintain a constant interval between the bottom of the fan and the upper surface of the combustion tube,

And an exhaust space through which gas formed around the support pillars flows between the fan bottom and the upper surface of the combustion tube,

A cylindrical first partition is vertically provided on the inner side of the side of the combustion tube to form a first heating space

A second barrier rib concentric with the first barrier rib is formed on the inner side of the first barrier rib to form a second heating space,

A third barrier rib concentric with the second barrier rib is formed on the inner side of the second barrier rib to form a third heating space,

The first heating space is communicated with the inlet pipe so as to be capable of gas flow and the first heating space communicates with the second heating space in a gas flow so as to be able to communicate with the second heating space through a first passage formed by opening a part of the first bank, The second heating space communicates gas flow with the third heating space through a second passage formed by opening a part of the partition wall and the third heating space communicates with the third heating space through a third passage formed by opening part of the third partition wall, Which is communicated with the exhaust space,

The cooking soot inside the fan flows into the first heating space, the second heating space, and the third heating space through the discharge pipe and the inlet pipe, is pyrolyzed, and then exits through the exhaust port and the exhaust space.

When the cooking soot is pyrolyzed while passing through a plurality of heating spaces formed inside the combustion tube, the volume of the pyrolysis increases and the pressure inside the combustion tube increases. Therefore, the cross-sectional area of the combustion pipe exhaust port is made larger than the cross-sectional area of the discharge pipe, so that the gas inside the combustion pipe is easily exhausted to the outside.

It is preferable that the flow path is formed to be long so as to sufficiently ensure the residence time in the combustion tube in order to efficiently pyrolyze the cooked soot. Accordingly, the inlet pipe and the first passage are located opposite to each other with respect to the center of the combustion tube, the first passage and the second passage are located opposite to each other, and the second passage and the third passage are located opposite to each other .

The combustion tube prevents the heating means from directly heating the fan and instead serves as a heating medium that indirectly transfers the heat of the heating means to the fan.

The internal pressure of the pan, which is cooked while being closed by the cover, is increased by the steam containing the cooking soot generated during the cooking. Therefore, the cooking soot is exhausted to the outside only through the combustion pipe connected to the discharge pipe and the air flow so as to be able to communicate by the pressure higher than atmospheric pressure formed inside the fan.

The fan deodorizing apparatus according to the present invention heats the bottom portion of the fan and the hot exhaust gas leaving the inside of the combustion tube is recycled as the cooking heat.

The fan deodorizing apparatus according to the present invention has the following effects.

First, not only does the cooking soot pass through the inside of the combustion tube, but also the high temperature exhaust gas that exits the combustion tube heats the bottom of the fan and is recycled as the cooking heat.

Secondly, the flow passage is formed long enough to ensure sufficient residence time in the combustion tube in which the cooking soot can be pyrolyzed, thereby increasing the effect of reducing the pollutant.

1 is a side cross-sectional view showing the overall configuration of the fan deodorant apparatus 10. Fig.
Fig. 2 is a front view of the inside of the combustion tube 40 taken away from the top, viewed vertically. Fig.
3 is an exploded perspective view of the fan 20 and the combustion tube 40. Fig.
4 is a side cross-sectional view of the fan deodorizer 10 showing a state in which the distance between the fan 20 and the combustion tube 40 is increased.

Other features and actions of the present invention will be described in detail with reference to the following examples.

1 and 2, the fan deodorizing apparatus 10 includes a fan 20 which is heated and cooked by the heat provided by the heating means 30, a lid 22 which covers and seals the upper opening of the fan 20 And a combustion tube 40 installed on the lower surface of the bottom portion of the fan 20. The heating means 30 for providing the heat necessary for cooking is a heater which emits heat using electricity.

The fan 20 accommodates the food therein through the upper opening and the silicon packing is provided at the edge of the lid 22 so as to come into close contact with the rim of the fan 20,

A discharge pipe (24) serving as an air flow path for the inside and the outside is formed on the edge of the upper surface of the bottom part of the fan (20) so as to protrude inward. The internal pressure of the fan 20, which is cooked while being closed by the lid 22, is increased by the steam containing the cooking soot generated during the cooking. Therefore, the cooking soot is exhausted to the outside only through the discharge pipe 24 by the pressure higher than the atmospheric pressure formed inside the fan 20. [

Between the lower surface of the bottom portion of the fan 20 and the heating means 30, there is provided a combustion tube 40 in which a plurality of heating spaces are formed. The combustion tube 40 has a flat cylindrical shape having a height H of 3 to 15 mm and a top surface, a side surface, and a bottom surface detachably connected to the bottom surface of the bottom portion of the fan 20.

And an inlet pipe (42) vertically protruding from one side edge of the upper surface of the combustion tube (40) and connected to the inside of the discharge pipe (24) so as to allow gas flow. 3, an exhaust port 44 having a perforated hole is formed at the center of the upper surface of the combustion tube 40. The sectional area of the exhaust port 44 is formed to be larger than the cross sectional area of the exhaust pipe 24, Gas is easily exhausted to the outside. A plurality of supporting pillars 46 are formed on the upper surface of the combustion tube 40 so as to be in contact with the bottom of the fan 20 and between the bottom of the fan 20 and the upper surface of the combustion tube 40, An exhaust space 48 through which the exhaust gas flows is formed. The support column 46 has a height D of 2 to 10 mm and the gap between the bottom of the fan 20 and the upper surface of the combustion tube 40 is kept constant by the support column 46. Since the heat of the combustion tube 40 is transmitted to the bottom of the fan 20 through the support pillars 46, the height D and the cross-sectional area of the support pillars are appropriately selected so that the amount of the cooking heat transferred to the fan 20 Can be adjusted.

A first heating space 61 is formed between the side surface of the combustion tube 40 and the first partition wall 51. The first partition 51 is formed on the inner side of the side surface of the combustion tube 40,

A second partition 52 is formed concentrically with the first partition 51 and a second heating space 62 is provided between the first partition 51 and the second partition 52. Is formed.

A third partition 53 is formed concentrically with the second partition 52 in the second partition 52 and a third heating space 63 is provided between the second partition 52 and the third partition 53. Is formed.

A part of the first partition 51 is opened to form a first passage 71 and a part of the second partition 52 is opened to form the second passage 72. A part of the third partition 53 The third passage 73 is formed.

The first heating space 61 communicates with the second heating space 62 through the first passage 71 and the first heating space 61 communicates with the first heating space 61 through the first passage 71, The second heating space 62 communicates with the third heating space 63 through the second passage 72 and the gas in the third heating space 63 communicates with the third passage 73 and the exhaust port 44 to communicate with the exhaust space 48.

The cooking soot inside the fan 20 flows into the first heating space 61, the second heating space 62 and the third heating space 63 through the discharge pipe 24 and the inflow pipe 42 to be pyrolyzed And exits to the outside through the exhaust port 44 and the exhaust space 48.

Referring to FIGS. 2 and 3, the traveling path of the cooked soot and the pyrolysis process will be described in detail.

The cooked soot inside the fan 20 moves into the discharge pipe 24 and flows into the first heating space 61 through the inlet pipe 42 and moves toward the first passage 71 at F2. The cooking soot of the first heating space 61 is moved to the second heating space 62 through the first passage 71 (F3). The cooking soot in the second heating space 62 moves to the third heating space 63 through the second passage 72 (F4). The temperature of the cooked soot moves from the rim to the center of the combustion tube 40 and the temperature of the cooked soot rises and the pyrolysis is effectively performed. 20) bottom portion. The high temperature exhaust gas that escapes from the combustion tube 40 passes through the exhaust space 48 and escapes to the edge of the combustion tube 40 (F6) and is recycled as a cooking heat to heat the bottom of the fan 20. [

It is preferable that the flow path is formed to be long so that the residence time in the combustion tube 40 is sufficiently secured in order for the cooking soot to be pyrolyzed efficiently. The first passage 71 and the second passage 72 are located opposite to each other with respect to the central portion of the combustion tube 40 and the first passage 71 and the first passage 71 are located opposite to each other , And the second passage 72 and the third passage 73 are located in opposite directions to each other.

Generally, it is necessary to strongly set the heating of the heating means 30 at the initial stage of cooking and weakly set the heating of the heating means 30 at the middle or late stage of the cooking. If the heating of the heating means 30 is weakened, the pyrolysis performance is lowered, but the cooking soot does not immediately decrease but continues to occur. This phenomenon is more serious when the heating means 30 directly heats the cooking vessel.

4, a lifting support (not shown) is installed to lift or lower the fan 20 in the vertical direction, and the discharge pipe 24 and the inflow pipe 42 are vertically slidable with respect to each other So that the distance between the bottom of the fan 20 and the combustion tube 40 can be increased or decreased. It is preferable to increase the spacing between the fan 20 and the combustion tube 40 in the last stage of the cooking process. The air layer formed between the enlarged gaps slows the heat of the combustion tube (40) from being transferred to the fan (20). Therefore, when the heating of the heating means 30 is maintained at the initial stage of cooking, the inside temperature of the combustion tube 40 does not change and the cleaning performance is maintained, but the temperature inside the fan 20 starts to decrease and the cooking speed is slowed down .

The combustion tube 40 of the fan deodorization apparatus 10 prevents the heating means 30 from directly heating the fan 20 and instead allows the heat of the heating means 30 to be indirectly blown through the support pillars 46 20) to the bottom. When the height H of the combustion tube 40 is lowered, the heat of the heating means 30 is more efficiently transferred to the fan 20. When the height H is increased, the heat of the combustion tube 20 is transmitted to the fan 20 The efficiency drops. Therefore, by controlling the height H of the combustion tube 40 to be between 3 and 15 mm, the heat of the heating means 30 can be efficiently transferred to the fan 20 and the pyrolysis of the cooking soot can be efficiently performed inside the combustion tube 40 .

The scope of the present invention is not limited to the above-described embodiments, and various changes and modifications may be made by those skilled in the art. Accordingly, the invention is limited only by the following claims.

10: Fan deodorizing device 20: Fan
22: lid 24:
30: Heating means 40:
42: inlet pipe 44: exhaust port
46: Support column 48: Exhaust space
51: first partition 52: second partition
53: third partition wall 61: first heating space
62: second heating space 63: third heating space
71: first passage 72: second passage
73: Third passage
Fl: Flow in which the cooking soot inside the fan (20) moves into the discharge pipe (24).
F2: Flow of the cooking soot flowing through the inflow pipe (42) into the first heating space (61).
F3: Flow of cooking soot flowing from the first heating space (61) through the first passage (71) to the second heating space (62).
F4: Flow of the cooking soot flowing from the second heating space (62) through the second passage (72) to the third heating space (63).
F5: Flow in which the gas, which has passed through the third passage (73), escapes to the exhaust port (44).
F6: A flow in which the gas in the exhaust space 48 moves toward the edge of the combustion tube 40 and is exhausted to the outside.

Claims (8)

A fan having a cover for sealing the upper opening portion and having a discharge pipe protruding from the edge of the upper surface of the bottom portion and serving as a passage through which the cooking soot generated in the food containing portion is discharged to the lower portion of the bottom portion;
Heating means for radiating heat using electricity; And
A flat cylindrical combustion tube positioned between the fan and the heating means and having an upper surface, a side surface, and a lower surface that are detachably connected to the lower surface of the bottom portion of the fan;
Lt; / RTI >
An inlet pipe formed at one side edge of the upper surface of the combustion tube and connected to the inside of the discharge pipe so as to allow gas flow,
An exhaust port having a perforated hole is provided in the central portion of the upper surface of the combustion tube,
And a plurality of support pillars formed to protrude from the upper surface of the combustion tube and come in contact with the bottom of the fan to maintain a constant interval between the bottom of the fan and the upper surface of the combustion tube,
And an exhaust space formed around the support pillars between the fan bottom and the upper surface of the combustion tube,
A cylindrical first partition is vertically provided on the inner side of the side of the combustion tube to form a first heating space
A second barrier rib concentric with the first barrier rib is formed on the inner side of the first barrier rib to form a second heating space,
A third barrier rib concentric with the second barrier rib is formed on the inner side of the second barrier rib to form a third heating space,
The first heating space is communicated with the inlet pipe so as to be capable of gas flow and the first heating space communicates with the second heating space in a gas flow so as to be able to communicate with the second heating space through a first passage formed by opening a part of the first bank, The second heating space communicates gas flow with the third heating space through a second passage formed by opening a part of the partition wall and the third heating space communicates with the third heating space through a third passage formed by opening part of the third partition wall, Which is communicated with the exhaust space,
Wherein the cooked soot inside the fan flows into the first heating space, the second heating space, and the third heating space through the discharge pipe and the inflow pipe, is pyrolyzed, and then exits through the exhaust port and the exhaust space. The fan deodorization apparatus according to claim 1, wherein the cross-sectional area of the combustion tube exhaust port is larger than the cross-sectional area of the discharge pipe. The fan deodorization apparatus according to claim 1, wherein the height (H) of the combustion tube is between 3 and 15 mm. The fan deodorization apparatus according to claim 1, wherein a height (D) of the supporting column is between 2 and 10 mm. The fan deodorization apparatus according to claim 1, wherein the inlet pipe and the first passage are located in opposite directions with respect to a central portion of the combustion pipe. The fan deodorization apparatus according to claim 1, wherein the combustion tube prevents the heating means from directly heating the fan, and instead conveys the heat of the heating means indirectly through the support column to the bottom of the fan. The fan deodorization apparatus as claimed in claim 1, wherein the discharge pipe and the inlet pipe are connected to each other so as to be slidable upward and downward, thereby increasing or decreasing a distance between the fan bottom and the combustion pipe. The fan deodorization apparatus as claimed in claim 1, wherein a high temperature exhaust gas exiting the inside of the combustion tube heats the bottom of the fan and is recycled as cooking heat.

Images