KR102548717B1 - Filter Assembly for Food Fryer - Google Patents

Abstract

The present invention is a food fryer in which the entire filter housing for purifying contaminated exhaust gas generated during the frying process can be completely removed from the main body for cleaning, and the installation process can be performed quickly and accurately even when mounted. The filter assembly is disclosed.
To this end, in the present invention, a pre-filter is installed above the food frying space of the frying device, but a filter housing having a flow rate reduction chamber and a filter receiving chamber is mounted directly above the pre-filter, and the inlet hole and the housing end of the filter housing are free The inlet packing around the filter and the outlet packing provided around the exhaust fan make it closely adhered, and at the same time, the filter housing can be installed and disassembled with a detachable means consisting of a hook and a hook while the edge of the filter housing is in close contact between position corrections. It is made so that the whole can be removed from the frying device.
Accordingly, in the present invention, there is no fear of contamination of the fan blades of the exhaust fan by high-temperature oil vapor, contaminants, etc., so there is little concern about contamination or damage to windings or bearings, and the entire filter assembly is detached, so the entire filter assembly is removed. Since it can be washed, it has a useful effect that it can always be used in a clean and sanitary condition.

Description

Filter assembly for food fryer {Filter Assembly for Food Fryer}

The present invention relates to a filter assembly for a food fryer, and mainly relates to a filter assembly for a food fryer for filtering various harmful substances such as fine dust and polycyclic aromatic hydrocarbons (PAH) generated in the process of frying foods such as chicken.

As is well known, the frying process in the food cooking process generates a lot of fine dust. For example, according to data from the Ministry of Environment, if the concentration of fine dust before cooking is 60㎍/㎥, the concentration of fine dust increases more than four times to 269㎍/㎥ when frying, which reduces indoor air quality and causes various respiratory diseases. can be a cause of

In addition, since all protein foods such as fish and meat generate carcinogenic harmful substances such as polycyclic aromatic hydrocarbons (PAH) when burned, harmful substances that may be generated during high-temperature frying must be removed during frying.

Therefore, Patent Registration No. 10-1753996 (title of invention: automatic fryer exhaust system; hereinafter referred to as 'cited invention') has been proposed in order to filter out fine dust and harmful substances generated during the meat frying process. there is.

According to the cited invention, as shown in FIG. 1, a body having a storage space and an air inlet formed on one side of an air inlet facing an oil tank seated in a frying space in a case of an automatic fryer; and a plurality of filters and a plurality of exhaust fans alternately arranged in a line in the accommodation space of the body, wherein the plurality of filters include first to third filters, and the plurality of exhaust fans include first and second exhaust fans. Including a second exhaust fan,

The first filter is disposed closest to the air inlet, the first exhaust fan is disposed next to the first filter, the second filter is disposed next to the first exhaust fan, and the second filter The second exhaust fan is disposed next to the second exhaust fan, and the third filter is disposed next to the second exhaust fan, and the third filter is disposed closest to the exhaust hole installed in the case to be spaced apart from the air inlet. A diaphragm having holes is installed between the first filter and the first exhaust fan and between the second filter and the second exhaust fan.

According to the cited invention of this configuration, in installing the exhaust structure inside the apparatus, a plurality of filters and a plurality of exhaust fans are alternately installed side by side in a row between the air inlet and the exhaust hole, thereby filtering the exhaust gas in the frying space. can do.

In particular, a triple filter structure is adopted, but a fan is interposed between the filters to purify oil vapor, a large amount of fine dust, and odor in the frying device.

On the other hand, in this cited invention, the polluted exhaust gas passes through a plurality of fans in the middle of passing through the three filters, in particular, when the fan installed between the filters to suck out the polluted exhaust gas operates, There is a problem that oil vapor, contaminants, and fine dust of the exhaust gas are burned, and the exhaust performance of the fan is rapidly deteriorated, or the rotor blades of the fan become heavy with contaminants and become eccentric, causing frequent breakdowns.

In addition, since the fan has a rotor and a stator with windings therein, foreign matter contained in the high-temperature exhaust gas penetrates into the bearing and causes failure, and the high-temperature exhaust gas damages the winding coating. Insulation failure and deformation of parts are unavoidable due to this, which greatly shortens the lifespan. Moreover, since this cited invention has a structure in which the filtering component is fixed to the case, it cannot be separated, so that foreign substances are inevitably accumulated in every corner as the period of use elapses, making hygienic management virtually impossible.

Registered Patent No. 10-1753996 (Title of Invention: Exhaust device of automatic fryer)

An object of the present invention is to allow the contaminated exhaust gas to pass through the pre-filter and reduce the flow rate in order to solve these problems, and the entire filter housing accommodating the filter can be completely removed from the main body and cleaned. It is to provide a filter assembly for a food fryer in which the mounting process is performed quickly and accurately.

The present invention, in order to achieve this object, a top plate partitioning the upper space of the food fryer; a pre-filter installed on one side of the upper plate and preliminarily filtering exhaust gas generated during frying; an exhaust fan for exhausting the exhaust gas filtered by the pre-filter and the filter medium to be described later with a suction power; A filter housing having an inlet hole through which the exhaust gas passing through the pre-filter is introduced is provided on a bottom surface, and a flow rate reducing chamber for reducing the flow rate of the exhaust gas directly above the inlet hole and a filter receiving chamber connected to the flow velocity reducing chamber; ; A filter having a filter medium inserted into the filter receiving chamber of the filter housing is configured, and the housing end of the filter housing is in close contact with the circumference of the exhaust fan,

An inlet packing is installed on the top plate to which the inlet hole of the filter housing is in close contact,
In addition, an outlet packing is installed between the housing end of the filter housing and the circumference of the exhaust fan, and when the filter housing is fastened and assembled between the top plate and the exhaust fan, the exhaust gas passing through the pre-filter is exhausted to the exhaust fan through the inlet hole. The filter housing is in close contact with the inside of the positioning bracket so that the space of the inlet packing and the outlet packing are sealed, and the filter housing is in a position where the hook of the detachable means is caught and fastened to the ring while the housing end is in close contact with the circumference of the outlet packing. Since the location is confirmed, it is made so that it can be installed in the correct location.

In this way, the present invention passes through the vacant flow rate reduction chamber provided directly above the pre-filter installed above the frying section, and the speed decreases, so that a significant amount of oil vapor and contaminants of large particle size among floating dust are stagnant in the flow rate reduction chamber , the polluted exhaust gas, such as fine dust and odor, moved to the filter side is filtered by the filter material, and only pure air is discharged through the exhaust fan.

Therefore, in the present invention, the amount of pollutants to be borne by the filter is reduced compared to the cited invention without a decrease in flow rate, and since the exhaust fan discharges only the exhaust gas filtered by the filter material of the filter, the fan blades are used to remove oil vapor, pollutants, etc. There is no fear of contamination by the exhaust gas, and since sufficiently cooled exhaust gas is discharged, there is little concern about contamination or damage to windings or bearings.

In particular, in the present invention, when the filter housing is pulled out using a detachable means, the entire filter assembly is detached, so the entire filter assembly can be washed with a cleaning solution or steam, so unlike conventional food fryers used in an oil-stained state, always There is a useful effect that can be used in a clean and hygienic condition.

1 is a perspective view showing the configuration of an exhaust system of an automatic frying device according to the cited invention.
Figure 2 is an exploded perspective view specifically illustrating the overall configuration of the filter assembly for a food fryer according to the present invention.
Figure 3 is a perspective view showing the structure of the frying device top plate of the food fryer according to the present invention.
Figure 4 is a perspective view showing a state in which the filter housing is coupled to the top plate of Figure 3 by dotted lines;
Figure 5 is a front view of the exhaust side to which the housing end of the filter housing is coupled in the present invention.
Figure 6 is a longitudinal cross-sectional view showing a first filter and a second filter accommodated in the filter housing of the present invention.
Figure 7 is a longitudinal cross-sectional view showing the structure of the filter housing and the upper plate of the frying device and the exhaust side in which the first filter and the second filter of the present invention are accommodated.
8 is a longitudinal sectional view showing a process of coupling the filter housing of FIG. 7 to the exhaust side;
9 is a longitudinal cross-sectional view showing a state in which the filter housing is completely attached to the inlet packing of the pre-filter and the outlet packing of the exhaust fan according to the present invention;
Figure 10 is a cross-sectional view showing a pre-filter mounting state of the present invention.
Figure 11 is a longitudinal sectional view showing a pre-filter mounting state of the present invention.
Fig. 12 is a cross-sectional view of a detached state of the pre-filter shown as a circular portion in Fig. 11;
13 is a cross-sectional view showing a protrusion limiting a position where a first filter can enter the filter housing.

Referring to the accompanying drawings, the embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention.

In the filter assembly for a food fryer according to the present invention, a pre-filter 300 is mounted on one side of a top plate 200 that divides the upper space above the food frying space of a frying device in the form of an enclosure, and the pre-filter 300 is directly above the filter assembly. A filter housing 100 equipped with a flow reduction chamber 104 and filters 101 and 102 mounted in the filter receiving chamber is mounted, and the housing end 108 of the filter housing 100 is an exhaust fan 201 Inlet packing ( 204) and the filter housing 100 are in close contact, and after the position is specified by the position correction interval 206, the filter housing 100 is moved by the detachable means 106 composed of the hook 207 and the hook 107. This is done so that it can be installed in the correct location.

For the operation of the filter assembly for a food fryer according to the present invention, the process of assembling and mounting the filter housing 100 will be described first.

First, the overall configuration of the present invention is shown in FIG. 2.

As can be seen from this, in the present invention, in the frying device in the form of a closed enclosure, the pre-filter 300 is mounted on the bottom surface of the upper plate 200 installed to partition the upper part of the frying space, but directly above the pre-filter 300 An inlet packing 204 is installed in the room, and the space partitioned by the top plate 200 above the frying space can be blocked or opened to the outside air by opening and closing a cover (not shown).

In the present invention, the first filter 101 and the second filter 102 are sequentially put into the housing end 108 of the filter housing 100 in the state shown in FIG. 6 to prepare the filter housing 100. As shown in 7, the hooking part 109 inside the filter housing 100 is caught and the position is fixed so that the first filter 101 and the second filter 102 are put in close contact and completed, and the through hole 110 ), so that the flow rate reducing chamber 104 inside the filter housing 100 and the net body 111 of the first filter 101 are in communication with each other via.

Subsequently, in order to mount the filter housing 100 into which the first and second filters 101 and 102 are inserted, the circumferential surface of the filter housing 100 is corrected as shown by the dotted line in FIG. 2 and FIGS. 4 and 8. The filter housing ( When the inlet hole 103 of 100) is pushed into close contact with the circumference of the inlet packing 204 around the pre-filter 300, the housing end 108 rides the inclined surface 203 of the combine guide 202 into the fastening groove of FIG. 5 208, and in this state, when the hook 207 of the detachable means 106 and the hook 107 are fastened, as shown in FIG. 9, the filter housing 100 is in the correct position of the top plate 200. The inside and outside of the filter housing 100 are completely sealed by the inlet packing 204 of the pre-filter 300 and the outlet packing 205 on the side of the exhaust fan 201, so that the upper plate is completely sealed during the exhaust process. There is no leakage of polluted gas in the space partitioned by 200, and in this state, when the cover of the enclosure is closed and the exhaust fan 201 is operated, the remaining amount of filtered exhaust gas is not leaked by the exhaust fan 201. It will be in a state where it can be discharged to the outside.

In this prepared state, when the user puts food such as chicken in the heated oil in the frying space of the frying device and starts frying, high-temperature exhaust gas containing oil vapor and fine dust is generated, and this exhaust gas is generated by the exhaust fan. The suction force generated by 201 passes through the pre-filter 300 of the top plate 200 and flows into the flow rate reducing chamber 104 of the filter housing 100. Therefore, when there is a foreign substance with a particularly heavy specific gravity among the introduced exhaust gas, it falls toward the pre-filter 300 and most of the exhaust gas flows into the first filter 101 and the second filter 102 of the filter housing 100. will be.

In the present invention, by passing through the filter medium 112 through the mesh 111 of the first filter 101 and the second filter 102, oil vapor and fine dust in the high-temperature exhaust gas are filtered and the purified air is supplied to the exhaust fan. 201, and the temperature of the filter housing 100 and the filters 101 and 102 can be increased by the high-temperature exhaust gas, so that the temperature of the filter housing 100 and the filters 101 and 102 is lowered and the filter Composed of a refrigerant circulation pump, a cooling fan, etc. that exchange heat around the outer circumference of the filter housing 100 by water or air cooling to increase the adsorption power of the filters 101 and 102 by lowering the temperature of the exhaust gas inside the housing 100 A possible cooling unit may be provided.

When the frying process is repeatedly used in this way, the pre-filter 300, the first filter 101, and the second filter 102 are contaminated and must be replaced. In this case, the present invention first includes the exhaust fan 201 It is possible to cut off the power supplied to all frying devices and open the cover of the housing to take out the filter housing (100). If the filter housing 100 is not present or is not properly installed, the frying device is configured not to operate, so that environmental pollution caused by using the frying device without the filter housing 100 or by not properly mounting the filter housing 100 can be prevented. .

In particular, in the present invention, the filter housing 100 can be completely separated from the top plate 200 that partitions the upper space of the food fryer and the exhaust fan 201 that sucks exhaust gas, so that the filter housing 100 can be completely removed from the inside of the enclosure. It can be pulled out and completely cleaned with a cleaning solvent.

To this end, the present invention first flips the hook 107 of the detachable means 106 to separate from the hook 207. Subsequently, as shown in FIG. 2, the corners of the filter housing 100 closely adjacent to the inside of the position correction rod 206 are separated, and the filter housing 100 is removed in the order shown in FIGS. 8 and 7 in the state shown in FIG. 9. that can be dismantled.

As described above, in the present invention, the circumference of the inlet hole 103 of the filter housing 100 is separated from the inlet packing 204 and at the same time the housing end 108 is separated from the fastening groove 208, so that the filter housing 100 is separated from the top plate ( 200) so that it can be taken out of the enclosure of the frying device. Subsequently, when the side of the housing end 108 is tilted downward, the first filter 101 and the second filter 102 flow out by their own weight, and the first filter 101 and the second filter 102 will be replaced as needed. In addition, in the present invention, contaminants deposited on the inner circumferential surface of the filter housing 100 can also be washed with a cleaning solution to ensure perfect cleanliness.

In addition, according to the present invention, the pre-filter 300 can also be removed from the pre-filter guide 301 and easily washed, and of course, the pre-filter 300 can be recycled after washing.

In addition, the present invention reduces the size of the first filter 101 and the capacity of the filter medium 112, and optimizes the mesh of the net 111, the type of the filter medium 112, and the particle size of the filter medium 112, so that most of the oil vapor and fine dust having a large particle size were filtered out by the first filter 101.

Accordingly, since the first filter 101 in the present invention has a low manufacturing cost, it can be replaced whenever necessary to efficiently purify the exhaust gas, and the second filter 102 can be recycled to reduce maintenance and operating costs. can

In particular, in the present invention, replacement of the first filter 101 and the second filter 102 is very easy, and the exhaust fan 201 is installed at the rear end of the first filter 101 and the second filter 102. Since it is installed in the exhaust fan 201 is not contaminated with contaminants of the exhaust gas. Therefore, the exhaust fan 201 is prevented from being contaminated by contaminants and thus malfunctioning or from being damaged by high heat of the exhaust gas, so that the fan 201 can operate stably.

In addition, in the present invention, although an embodiment in which the hook 107 and the hook 207 in the form of a clamp are applied as the attaching and detaching means 106 is shown in the drawing, various shapes as well-known that can be easily hooked, fixed and detached It goes without saying that the detachable means 106 can be applied.

In addition, in the present invention, as shown in FIGS. 11 and 12, the pre-filter 300 is installed below the inlet hole 103 of the filter housing 100, and such a pre-filter 300 flows into the flow rate reducing chamber 104. It is polluted by the most pollutants entering and falling. Therefore, the pre-filter 300 needs to be washed frequently, and the pre-filter guide 301 is fixed to the bottom of the top plate 200 so that it can be inserted and removed in a sliding manner from the bottom of the top plate 200 for easy cleaning. . The enlarged state of the pre-filter guide 301 is shown in FIG. 12, and as shown, the mesh 111 of the pre-filter 300 can be easily removed by pushing it, and the structure can be pushed in and mounted. there is.

In addition, in the present invention, the structure of the first filter 101 and the second filter 102 accommodated in the mesh pre-filter 300 and the filter housing 100 is filled with the filter medium 112 inside the mesh 111 Although it is exemplified as a simple structure, it goes without saying that the design can be changed and applied to a selectively optimized structure such as an activated carbon filter, a collation filter, a HEPA filter, etc. according to a specific use.

In addition, as shown in FIG. 6, the present invention pushes the first filter 101 and the second filter 102 on the right into the filter housing 100 on the left. At this time, the first filter 101 is a filter. It is caught on the hooking part 109 of the housing 100 and prevents further entry, thereby limiting the position. In this way, the first filter 101 and the second filter 102 are mounted in the optimal position of the filter housing 100, and the projection 114 shown in FIG. 13 is not the hooking portion 109 as described above If you install , you can do the same function. In addition, in the present invention, in addition to the first filter 101 and the second filter 102, if necessary, a larger number of filters can be accommodated and mounted, and the filling amount of each filter is differentiated according to the replacement frequency. It is possible to make economical management possible by putting a difference in filling amount.

In addition, in the present invention, by mounting the handle 105 on one outer side of the filter housing 100, a series of handling processes of taking out the filter assembly, cleaning it, and then loading it is convenient.

In the above, the technical idea of the present invention has been described together with the accompanying drawings, but this is an illustrative description of the best embodiment of the present invention, not limiting the present invention, and those skilled in the art It is a clear fact that anyone can make various modifications and imitations such as dimensions, shapes, and structures without departing from the scope of the technical idea of the present invention, and such modifications and imitations are included in the scope of the technical idea of the present invention.

100: filter housing 101: first filter 102: second filter
103: inlet hole 104: flow rate reduction chamber 105: handle
106: detachable means 107: hook 108: housing end
109: hanging part 110: through hole 111: mesh
112: filter medium 114: protrusion 200: top plate
201: exhaust fan 202: combine guide 203: slope
204: Inlet packing 205: Outlet packing 206: Between position correction
207: ring 208: fastening groove 300: pre-filter
301: pre-filter guide

Claims (10)

A top plate partitioning the upper space of the food fryer;
A pre-filter installed on one side of the top plate and preliminarily filtering exhaust gas generated in the frying process;
An exhaust fan for exhausting the exhaust gas filtered by the pre-filter and the filter medium to be described later with a suction power;
An inlet hole into which the exhaust gas passing through the pre-filter flows is provided on a bottom surface, and a flow rate reducing chamber for reducing the flow rate of the exhaust gas directly above the inlet hole; and
A filter housing having a filter receiving chamber connected to the flow rate reducing chamber;
A filter having a built-in filter medium inserted into the filter receiving chamber of the filter housing is constituted,
The housing end of the filter housing is in close contact with the circumference of the exhaust fan,
An inlet packing is installed on the top plate to which the inlet hole of the filter housing is in close contact,
In addition, an outlet packing is installed between the housing end of the filter housing and the circumference of the exhaust fan, and when the filter housing is fastened and assembled between the top plate and the exhaust fan, the exhaust gas passing through the pre-filter is exhausted to the exhaust fan through the inlet hole. The filter housing is in close contact with the inside of the positioning bracket so that the space of the inlet packing and the outlet packing are sealed, and the filter housing is in a position where the hook of the detachable means is caught and fastened to the ring while the housing end is in close contact with the circumference of the outlet packing. Filter assembly for a food fryer, characterized in that the position is fixed. delete delete delete delete delete According to claim 1,
A filter assembly for a food fryer, characterized in that the filter in which the filter medium is embedded is composed of two filters, a first filter and a second filter each composed of a separate mesh and housing. delete According to claim 1,
A filter assembly for a food fryer, characterized in that a handle is provided on one side of the outer side of the filter housing. According to claim 1,
The filter assembly for a food fryer, characterized in that the filter housing is completely separated from the top plate partitioning the upper space of the food fryer and the exhaust fan for sucking exhaust gas.

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