KR20210120207A - Apparatus for Removing Oil Droplet and Dust from Oil Mist - Google Patents

Abstract

An apparatus for removing oil and dust from oil mist comprises a pipe including a plurality of sub pipes that have an inlet on one side and an outlet on the other side and are connected in zigzags; an oil and dust removal filter coupled to the inside of the sub pipes in the longitudinal direction and provided with a spiral blade; and a cooling unit for cooling the pipe. The apparatus has high efficiency of oil and dust removal and low price and is easy to install, thereby being installed and operated casually even in small direct-grilling restaurants.

Description

Apparatus for Removing Oil Droplet and Dust from Oil Mist

The present invention relates to an oil vapor oil and dust removal device, and more particularly, to an oil vapor oil and dust removal device connected to a direct fire grilling hood to remove oil and dust from smoke containing oil (oil), that is, oil vapor will be.

In direct-fired restaurants, oil vapors (smoke containing oil) generated when meat is grilled are discharged using hoods and blowers. At the rear end of the hood, a duct and a purifier are connected to purify the oil vapor generated from direct fire and then discharge it to the outside.

As a device for purifying oil vapor, an electric dust collector, a plasma dust collector, a gas burner, a catalyst, and the like are used.

Electric dust collectors and plasma dust collectors collect ionized dust, and for this purpose, a wide electrode is required, which causes a high product price. In addition, since electric dust collectors and plasma dust collectors use high-voltage power, electric shock accidents or fires may occur due to electric discharge due to electric leakage. In order to prevent fire, there must be a secondary and tertiary fire extinguishing device, which is also a factor that increases the product price.

Gas combustor collects oil vapor and burns it internally, which also requires an extinguishing device, so the initial cost may be more expensive than an electric dust collector or a plasma dust collector.

Catalyst utilization devices are rarely used alone, but are used in combination with other dust collectors, but they are rarely used because more expensive equipment is added to expensive equipment.

As such, in direct-fired restaurants, it is required to remove oil and dust from the oil vapor before discharging it, but in small livelihood (200 m2 or less) workplaces, installation of an oil and dust removal device is recommended, so it is not compulsory to install it. Conventional oil vapor oil and dust removal devices are expensive and not easy to install.

However, complaints about oil vapor are increasing around restaurants, and a solution is urgently needed.

[Prior Patent Literature]

Korean Patent Laid-Open No. 2017-0115672 (Range hood device for kitchen with automatic removal of foreign substances from filter net)

Korean Patent Registration No. 1788640 (Exhaust Induction Kitchen Range Hood)

The present invention is to solve the problems of the prior art, and the oil vapor and dust removal efficiency are high, and it is easy to install and inexpensive, so that it can be installed and operated in a small (small) open fire restaurant without any burden. An object of the present invention is to provide an oil and dust removal device.

The oil vapor oil and dust removal apparatus of the present invention for achieving this object may include a pipe, an oil and dust removal filter, a cooling unit, and the like.

The pipe has an inlet on one side and an outlet on the other side, and may include a plurality of sub pipes connected in a zigzag manner.

The oil and dust removal filter is coupled along the longitudinal direction to the inside of the pipe and may have a spiral blade.

The cooling unit may cool the pipe.

In the oil and dust removal device of the present invention, the spiral blade may include pores.

In the oil vapor oil and dust removal device of the present invention, the spiral blade may include a mesh that is coupled to the pores.

The oil vapor oil and dust removal device of the present invention may include a heat transfer support and an upper cap.

The heat transfer support supports the spiral blade and can selectively heat the spiral blade.

One side of the upper cap may be coupled to the heat transfer support, and the other side may be coupled to the upper end of the sub-pipe.

The oil vapor oil and dust removal device of the present invention may include an oil discharge cap coupled to the lower end of the sub-pipe.

The oil vapor oil and dust removal device of the present invention may include an oil recovery tray located below the oil discharge cap.

The oil vapor oil and dust removal device of the present invention may include an inlet pressure sensor, an outlet pressure sensor, and a control unit.

The inflow pressure sensor may be coupled to the inlet of the pipe to measure the inflow pressure of the oil vapor.

The outlet pressure sensor may be coupled to the outlet of the pipe to measure the outlet pressure of the smoke from which the oil has been removed.

The control unit may generate an alarm when the pressure difference between the inlet pressure sensor and the outlet pressure sensor exceeds a reference pressure difference.

In the oil vapor oil and dust removal apparatus of the present invention, the pipe may include a first pipe group and a second pipe group.

The first pipe group may include a plurality of first sub pipes connected in a zigzag manner. An outermost first sub-pipe among the plurality of first sub-pipes may communicate with the inlet and the outlet, respectively.

The second pipe group may include a plurality of second sub pipes separated from the first pipe group and connected in a zigzag manner. The outermost second sub-pipe among the plurality of second sub-pipes may communicate with the inlet and the outlet, respectively.

In the oil vapor oil and dust removal apparatus of the present invention, the cooling unit may include a cooling fan.

According to the oil vapor oil and dust removal device of the present invention having such a configuration, it is possible to remove oil and dust from the oil vapor only by inserting the oil and dust removal filter of the spiral blade into the pipe and cooling the pipe. The price is low, and as a result, it can be easily installed and operated in small direct-fired restaurants.

According to the oil vapor oil and dust removal apparatus of the present invention, by forming pores in the spiral blade, the removal efficiency of oil and dust can be further increased by 21% or more, thereby providing a low-cost, high-efficiency oil vapor oil and dust removal apparatus. .

According to the oil vapor oil and dust removal apparatus of the present invention, by installing a mesh in the pores of the spiral blade, the removal efficiency of oil and dust can be further increased by 13% or more.

According to the oil vapor oil and dust removal device of the present invention, the pipe is divided into several groups, each group is divided into sub-pipes and then connected in a zigzag manner, thereby maximizing the path of the oil vapor movement, through which the oil vapor is helical blades. By greatly increasing the contact time, frequency, and area, the removal efficiency of oil and dust can be further improved by 8% or more.

According to the oil vapor oil and dust removal device of the present invention, it is possible to easily clean the condensed and adsorbed oil in the pipe through the heat transfer support, the oil discharge cap, the oil recovery tray, and the like, which is convenient to use.

In addition, according to the oil vapor oil and dust removal apparatus of the present invention, the cleaning cycle of the pipe can be easily known by measuring and comparing the inflow pressure and the outflow pressure.

1 is a block diagram of an oil vapor oil and dust removal system according to the present invention.
2 is a perspective view of an oil vapor oil and dust removal device according to the present invention.
3 is an exploded perspective view of the oil vapor oil and dust removal device according to the present invention.
4 is a perspective view illustrating a modified example of the oil and dust removal filter in the oil vapor oil and dust removal device according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an oil vapor oil and dust removal system according to the present invention.

As shown in FIG. 1, the system for removing oil and dust from oil vapor may include a hood 100, a duct 200, an oil and dust removal device 300, a post-treatment device 400, and the like. have.

In the hood 100 , the lower suction port may be disposed to face the direct-fired grilling plate 500 , and the upper side may communicate with the duct 200 . The system may include a blower (not shown), and when the blower (not shown) operates, the air pressure at the lower suction port of the hood 100 is lowered, and as a result, oil vapor (smoke, oil, dust) generated from the direct-fired grilling plate 500 . etc.) can be easily sucked into the lower suction port. The hood 100 may be provided in a number corresponding to the number of the direct-heat grilling plate 500 .

One side of the duct 200 is connected to the plurality of hoods 100 and the other side is connected to the oil and dust removal device 300 , and the oil vapor sucked from the plurality of hoods 100 is transferred to the oil and dust removal device 300 . can transmit The duct 200 may have a larger diameter than the hood 100 .

The oil and dust removal device 300 removes oil and dust from oil vapor introduced through the duct 200, and includes a pipe 310, an oil and dust removal filter 340, a cooling unit 320, and the like. can do. The oil and dust removal device 300 may condense and adsorb the oil contained in the oil vapor to remove oil, dust, and the like contained in the oil vapor.

The oil and dust removal device 300 may heat and remove the condensed and adsorbed oil.

The oil and dust removal device 300 will be described in detail later with reference to FIGS. 2 to 4 .

The post-processing device 400 may additionally remove fine dust and the like from the low-temperature smoke that has passed through the oil and dust removal device 300 . The post-processing apparatus 400 may include a plurality of filters, for example, a pre-filter, a wolfa/medium filter, a coconut shell activated carbon filter, and the like. The pre-filter can purify the smoke, the wolfa/medium filter can filter out large particulate harmful substances, and the coconut shell activated carbon filter can remove benzene, formaldehyde, HCHO, TVOC, cigarette smoke, garbage smell, radon, etc. can

2 is a perspective view of an oil vapor oil and dust removal device according to the present invention.

As shown in FIG. 2 , the apparatus 300 for removing oil vapor and dust according to the present invention may include a pipe 310 , a cooling unit 320 , a case 330 , and the like.

The pipe 310 forms a pipe therein to pass the oil vapor, and may have an inlet 311 on one side and an outlet 313 on the other side.

The pipe 310 may be configured as a single integrated pipe, but may be divided into sub pipes as shown in FIG. 2 . When the pipe 310 is divided into a plurality of sub-pipes, the plurality of sub-pipes may be arranged in one row, or as shown in FIG. 2 , may be arranged in several groups of rows. When arranging in several groups, it may include, for example, a first pipe group, a second pipe group, and the like.

The first pipe group may include a plurality of first sub pipes 312 . The first sub-pipe 312 may be connected in a zigzag to form one pipe. The outermost first sub-pipe 312 of the first pipe group may be connected to the inlet 311 and the outlet 313 , respectively. In this case, the inlet 311 and the outlet 313 may be divided into a first sub-inlet and a first sub-outlet.

The second pipe group may be configured separately from the first pipe group. The second pipe group may include a plurality of second sub pipes 314 . The second sub-pipe 314, like the first sub-pipe 312, may be connected in a zigzag to form one pipe. The outermost second sub-pipe 314 of the second pipe group may be connected to the inlet 311 and the outlet 313 , respectively. In this case, the inlet 311 and the outlet 313 may be divided into a second sub-inlet and a second sub-outlet.

As shown in FIG. 2, when the pipe 310 is divided into two groups and each group is connected by a zigzag combination of six sub pipes 312 and 314, the path through which the oil vapor moves is lengthened and the spiral blade 341 is ), the time, frequency, and area of contact are increased, and as a result, the removal efficiency of oil and dust can be improved. When the pipe 310 is configured as shown in FIG. 2, the removal efficiency of oil and dust is 18% or more compared to the case of configuring one pipe, and 8% or more compared to the case of arranging six sub pipes in a line. Improvement was confirmed.

The cooling unit 320 cools the pipe 310 and may utilize an air cooling type, a water cooling type, or the like.

As shown in FIG. 2 , the air cooling type may include, for example, a cooling fan. The cooling fan may cool the pipe 310 by moving air in the pipe 310 direction. In this case, as the pipe 310 surface is cooled, the inside of the pipe 310, that is, the oil vapor moving along the pipe, is cooled. , as a result, the oil contained in the oil vapor can be adsorbed while being condensed on the inner surface of the pipe 310 . The condensed adsorbed oil may act as a filter for additionally adsorbing other oils in the oil vapor, and as a result, the oil removal function may be increased.

In the water cooling type, for example, a cooling water pipe may be installed on the outer surface of the pipe 310 . When the cooling water flows through the cooling water pipe, the cooling water cools the surface of the pipe 310 , and as a result, the oil in the oil vapor moving along the inside of the pipe 310 can be condensed and adsorbed on the inside of the pipe 310 .

The case 330 may contain the pipe 310 while opening the inlet 311 and the outlet 313 . The case 330 may support and fix the cooling unit 320, for example, a cooling fan, on one side. The case 330 may be provided with an outlet slit on the other side, that is, a portion facing the cooling unit 320 , so that the air pressurized and moved by the cooling fan flows out.

The oil discharge cap C2 may be coupled to the lower ends of the sub-pipes 312 and 314 to selectively open and close the lower ends of the sub-pipes 312 and 314 .

The oil recovery tray 350 may be located below the oil discharge cap C2, and when the oil discharge cap C2 is opened, the oil collected at the lower side of the sub-pipes 312 and 314 may be recovered.

The inflow pressure sensor S1 may be coupled to the inlet 311 of the pipe 310 to measure the inflow pressure of the oil vapor.

The outlet pressure sensor S2 may be coupled to the outlet 313 of the pipe 310 to measure the outlet pressure of the smoke from which the oil has been removed.

The controller (not shown) may generate an alarm when the pressure difference between the inlet pressure sensor S1 and the outlet pressure sensor S2 exceeds a set reference pressure difference. For example, when the inlet pressure of the inlet pressure sensor S1 is excessively higher than the outlet pressure of the outlet pressure sensor S2, it means that the flow of oil vapor is not smooth in the sub-pipes 312 and 314, which is the sub-pipe. (312,314) Since a lot of oil is condensed and adsorbed inside, it is necessary to clean the inside, so the alarm here may be a cleaning alarm.

3 is an exploded perspective view of the oil vapor oil and dust removal device according to the present invention.

As shown in FIG. 3 , the oil vapor and dust removal device 300 of the present invention may include an oil and dust removal filter 340 . The oil and dust removal filter 340 may include a spiral blade 341 .

The spiral blade 341 may be coupled along the longitudinal direction inside the first and second sub-pipes 312 and 314 . The spiral blade 341 can make the oil vapor stay in the first and second sub-pipes 312 and 314 for a long time by increasing the movement path of the oil vapor while guiding the flow of the oil vapor, and as a result, the spiral blade 341 is in contact with the oil vapor. By increasing the time, area, frequency, etc., the amount of condensed and adsorbed oil can be increased.

The spiral blade 341 is made of a material with high thermal conductivity, for example, silver, aluminum, etc., so that the cold air applied to the outer surfaces of the first and second sub-pipes 312 and 314 is rapidly transferred to the spiral blade 341 . may be desirable.

The spiral blade 341 may have a thickness of 1 to 3 mm. If the thickness of the spiral blade 341 is configured to be less than 1 mm, heat absorption may be reduced, and heat transfer efficiency may be deteriorated. When the thickness of the helical blade 341 exceeds 3 mm, the improvement in heat transfer efficiency is negligible, whereas operation is difficult due to an increase in weight and material cost may increase.

The spiral blade 341 may include pores H. The pores (H) may facilitate the flow of the oil vapor while passing the oil vapor. The pores (H) can function as a filter for filtering fine dust and the like if the diameter is finely configured. Oil passing through the pores (H) may be condensed and adsorbed to the pores (H). It can serve as an additional fine dust filter.

3, when the pore (H) is formed in the spiral blade 341, compared to the case without the pore (H), it was confirmed that the removal efficiency of oil and dust is further improved by 21% or more.

4 is a perspective view illustrating a modified example of the oil and dust removal filter in the oil vapor oil and dust removal device according to the present invention.

As shown in Figure 4, the spiral blade 341 can be configured by combining the mesh (M) to the pores (H).

The mesh (M) is composed of metal, plastic, etc. in the form of a mesh, and when the oil vapor passes through the pores (H), it is possible to primarily filter the dust contained in the oil vapor, especially the dust of large particles. When large dust is adsorbed to the mesh (M), the mesh hole of the mesh (M) is reduced, and as a result, the mesh (M) can function as a secondary fine dust filter.

The mesh (M) can increase the condensed adsorption rate of oil by increasing the contact area with the oil vapor passing through the pores (H). When oil is condensed and adsorbed on the mesh (M), it was confirmed that the fine dust adsorption rate is increased and it can also function as a filter for PM2,5.

4, when the mesh (M) is installed in the pores (H) of the spiral blade 341, compared to the case without the mesh (M), the removal efficiency of oil and dust is further improved by 13% or more did.

As shown in FIG. 4 , the heat transfer support 343 and the upper cap C1 may be coupled to the spiral blade 341 .

The heat transfer support 343 may selectively heat the spiral blade 341 using power supplied from the outside while supporting the spiral blade 341 . When 60 ~ 70 ℃ heat is applied to the spiral blade 341, the condensed and adsorbed oil is melted and separated from the spiral blade 341, and the separated oil moves to the lower portion and is collected on the upper part of the oil discharge cap (C2). do. Thereafter, when the oil discharge cap ( ) is opened, the collected oil may be discharged from the sub-pipes 312 and 314 .

One side of the upper cap C1 may be coupled to the spiral blade 341 and the other side may be detachably coupled to the upper ends of the first and second sub-pipes 312 and 314 by means of fitting, screw coupling, or the like.

In the above, the present invention has been described as several embodiments, which are intended to illustrate the present invention. Those skilled in the art will be able to change or modify these embodiments in other forms. However, since the scope of the present invention is defined by the following claims, such variations or modifications may be construed as being included in the scope of the present invention.

100: hood 200: duct
300: oil and dust removal device 310: pipe
311: inlet 312: first sub pipe
313: outlet 314: second sub pipe
320: cooling unit 330: case
340: oil and dust removal filter 341: spiral blade
343: blade support 350: oil recovery tray
400: post-processing device 500: direct fire grilling plate
C1 : Upper cap C2 : Oil discharge cap
H: pore M: mesh
S1: inlet pressure sensor S2: outlet pressure sensor

Claims (9)

a pipe having an inlet on one side and an outlet on the other side, the pipe including a plurality of sub pipes connected in a zigzag;
an oil and dust removal filter coupled along the longitudinal direction to the inside of the sub-pipe and having a spiral blade;
Including a cooling unit for cooling the pipe, oil vapor oil and dust removal device. The method of claim 1, wherein the helical blade is
An oil vapor oil and dust removal device comprising pores. 3. The method of claim 2, wherein the helical blade is
Containing a mesh coupled to the pores, oil vapor oil and dust removal device. 4. The method according to any one of claims 1 to 3,
an electric heat support for supporting the spiral blade and selectively heating the spiral blade;
One side is coupled to the heat transfer support and the other side includes an upper cap coupled to the upper end of the sub-pipe, oil vapor oil and dust removal device. 5. The method of claim 4,
Oil vapor oil and dust removal device comprising an oil discharge cap coupled to the lower end of the sub-pipe. 7. The method of claim 6,
An oil vapor oil and dust removal device comprising an oil recovery tray positioned below the oil discharge cap. 4. The method according to any one of claims 1 to 3,
an inlet pressure sensor coupled to the inlet;
an outlet pressure sensor coupled to the outlet;
and a control unit configured to generate an alarm when the pressure difference between the inlet pressure sensor and the outlet pressure sensor exceeds a reference pressure difference. According to any one of claims 1 to 3, wherein the pipe
a first pipe group comprising a plurality of first sub-pipes connected in a zigzag manner, wherein an outermost first sub-pipe among the plurality of first sub-pipes communicates with the inlet and the outlet, respectively;
and a plurality of second sub pipes separated from the first pipe group and connected in a zigzag manner, wherein an outermost second sub pipe among the plurality of second sub pipes is a second pipe group communicating with the inlet and the outlet, respectively. comprising, an oil vapor oil and dust removal device. According to any one of claims 1 to 3, wherein the cooling unit
An oil vapor oil and dust removal device comprising a cooling fan.

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