JP2000246036A - Exhaust gas cleaning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an inexpensive spread type exhaust gas cleaning apparatus capable of certainly removing soot or oil from exhaust gas mixed with soot or oil generated in a kitchen or the like by a simple structure and easy in maintenance. SOLUTION: An exhaust gas cleaning apparatus is constituted so as to introduce exhaust gas to remove soot or oil by water to discharge cleaned gas. In this case, a falling dust 8 introducing exhaust gas downwardly and a rising chamber 9 raising exhaust gas are arranged above a water tank 7 so as to be adjacent to each other and a water sprinkling means 11 is provided above the rising chamber and guide means 10, P1 of sprinkled water are provided in order to form a water curtain so as to interrupt the passage between the falling duct 8 and the rising chamber 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing soot, oil and the like from flue gas containing soot and oil generated in a kitchen or the like and purifying the same.

[0002]

2. Description of the Related Art Various devices have been proposed for removing soot and oil from flue gas generated in a kitchen, but the structure is complicated and expensive, and the maintenance burden is large. , For reasons such as, has not been spread. As a result, the outer wall of the building is contaminated by the drainage of black kitchen oil, which not only deteriorates the scenery but also pollutes the atmosphere.

[0003] The technical problem of the present invention is to focus on such a problem, and to realize a popular type of flue gas purifying apparatus which can surely remove soot and oil with a simple structure, is easy to maintain, and is inexpensive. It is in.

[0004]

The technical problem of the present invention is solved by the following means. Claim 1 is a device for introducing smoke exhaust, removing soot, oil, and the like with water, and exhausting the exhaust gas, wherein a descending duct for introducing smoke exhaust downwardly and an ascending chamber for increasing smoke exhaust are provided above the water tank. Are arranged adjacent to each other. A watering means is provided above the rising chamber, and a water guiding means is provided for forming a water curtain so as to block a passage between the descending duct and the rising chamber.

As described above, since the descending duct for introducing the flue gas downward and the rising chamber for raising the flue gas are arranged adjacent to each other on the upper side of the water tank, when the flue gas descends, the lowering duct becomes lower. Soot and oil collide with water in the water tank on the side, and soot and oil are adsorbed into the water. Moreover, the water sprinkled by the water sprinkling means on the upper side of the ascending chamber flows down by the guide means into the passage between the descending duct and the ascending chamber, and a water curtain is formed. Thus, soot and oil are adsorbed and purified more reliably.

According to a second aspect of the present invention, there is provided a flue gas purifying apparatus, wherein a bottom plate which is inclined so that a side of a descending duct is lowered is provided at a lower portion of the rising chamber according to the first aspect. In this way, the bottom plate that is inclined so that the descending duct side is lower at the lower part of the ascending chamber, so that the water tank surface under the descending duct undulates with the force of the water that has flowed down on the bottom plate, and the descending duct is The contact area with the descending soot and oil increases, and the soot and oil can be more reliably adsorbed in the water tank.

According to a third aspect of the present invention, there is provided a flue gas purifying apparatus in which a perforated plate is disposed at least on the lower side of the watering means according to the first or second aspect so as to be inclined in a substantially C-shape. "Substantially in the shape of a letter" means that a plurality of perforated plates are inclined in opposite directions to each other. Inclines ”.

As described above, since the perforated plate is disposed under the water sprinkling means in such a manner as to be inclined in a substantially C-shape, the sprinkled water is guided down the C-shaped perforated plate and flows down. However, it leaks from many holes in the perforated plate and is sprayed like a shower, and also rebounds and splashes, increasing the chances of contact between falling water and soot and oil, and more reliably adsorb soot and oil . The smoke from which soot and oil have been removed rises while being guided by the lower surface of the C-shaped perforated plate, and is discharged from the exhaust port.

According to a fourth aspect of the present invention, a pipe is provided so as to pump up the water in the water tank according to the first, second or third aspect and supply the water to the water spraying means. This is a flue gas purifying device provided with an overflow means in a water tank so as to overflow when stopped.

As described above, since the water in the water tank is pumped up and supplied to the water sprinkling means for circulation, the water consumption is small and economical. Also, since the water tank is provided with overflow means, the water circulates during operation and does not overflow, but by stopping, the water in the water tank increases,
Overflowing. Therefore, water contaminated by adsorbing soot and oil overflows and is automatically discharged.

As described above, according to the constitutions of claims 1 to 4, the structure is simple, the supply can be performed at low cost, and the maintenance is easy.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment will be described as to how a flue gas purifying apparatus according to the present invention is actually embodied.
FIG. 1 is a perspective view showing an embodiment of a flue gas purifying apparatus according to the present invention, in which a side wall 4 on the near side is cut away to show the inside.

The illustrated device is formed in a box shape including a front wall 1, a back wall 2, a left side wall 3, and a right side wall 4.
Then, a smoke exhaust port 5 is formed above the front wall 1,
A discharge port 6 is formed at the upper end near the back.

The apparatus of the present invention is for removing soot and oil in flue gas by adsorbing with water, and has a built-in water tank 7 at the bottom. Above the water tank 7, a descending duct 8 for introducing the flue gas downward, and a rising chamber 9 for raising and discharging the flue gas.
Are arranged adjacent to each other with a partition wall 10 therebetween. The upper end of the descending duct 8 communicates with the introduction port 5.

A sprinkling plate 11 is disposed above the rising chamber 9, that is, below the discharge port 6, and water flowing out of the water supply port 12 is sprinkled into the rising chamber 9 by the sprinkling plate 11. The sprinkling plate 11 in the illustrated example has a structure in which two perforated plates 11a and 11b are formed in a mountain shape and passed between the left side wall 3 and the right side wall 4, but a number of holes are opened. A circular umbrella is also possible.

A lower portion of the ascending chamber 9 is provided with a bottom plate 21 which is inclined forward so as to be lower, that is, the lowering duct 8 side is lowered.
The water tank 7 is provided below the inclined bottom plate 21.

Below the sprinkling plate 11, a perforated plate P
1, P2 is disposed in a substantially C-shape. That is, a perforated plate P1 inclined forward and a perforated plate P2 inclined downward are passed between the left and right side walls 3 and 4. The perforated plates P1 and P2 may be slightly shifted in the vertical direction. A gap 13 of, for example, about 5 mm is formed between the front end of the porous plate P1 inclined downward and the partition 10.

Further, a perforated plate P3 which is inclined downward and rearward to guide smoke exhaust to the discharge port 6 side is disposed above the rear side of the sprinkling plate 11, and above the sprinkling plate 11 above. ,
A guide plate P4 that is inclined forward and downward is arranged to guide the flue gas to the discharge port 6 side. Left and right side walls 3,
It has been passed between four.

In this apparatus, as shown in FIG. 2, when the inlet 5 is connected to the exhaust duct 18 of the kitchen and water is discharged from the water supply port 12, the water is dispersed by the perforated plates 11a and 11b, Through the holes, and become innumerable water droplets, which are sprayed like a shower.

The water droplets that have fallen on the perforated plate P1 inclined downward and the perforated plate P2 inclined downward and backward collide with the perforated plates P1 and P2 and rebound as finer splashes. After flowing down on the perforated plates P1 and P2 or passing through a number of holes, fine water droplets are formed and further dispersed.

Therefore, the smoke exhausted from the inlet 5 into the descending duct 8 by the force of the exhaust fan 19 of the exhaust duct 18 of the kitchen passes through the opening below the partition 10 and rises into the rising chamber. When ascending in 9, it is hit and hit by countless water drops and splashes, flows down on the inclined bottom plate 21, and flows into the water W of the water tank 7.

Further, the water flow that has flowed down on the perforated plate P1 that is inclined forward and downward flows down in a gap 13 between the partition walls 10 in the form of a film, and spreads down like a curtain of water and flows down. Soot and oil are knocked down by the water curtain 20 and are adsorbed in the water W in the water tank.

Further, before passing through the water curtain 20,
The flue gas that descends vigorously in the descending duct 8 is the water W
Soot and oil are directly absorbed into the water in the aquarium. At this time, the water surface on the lower side of the descending duct 8 undulates due to the momentum of the water flowing down on the bottom plate 21 inclined forward and downward,
Since the contact area with soot and oil coming down the descending duct increases, soot and oil can be more reliably captured in water.

In this manner, when the flue gas enters the water W in the water tank in the first stage, soot and oil are removed, and the remaining soot and oil at this time are removed by the next water curtain 20. Is removed by Soot and oil that have not been removed still remain
When climbing inside, it is hit by countless water droplets and splashes, falls down on the inclined bottom plate 21, and flows into the water tank. As a result, soot and oil are almost completely removed, resulting in purified air that flows out from the outlet 6 into the atmosphere.

As described above, not only soot and oil and the like in the flue gas are removed, but also odor and the like are removed. In addition, since the flue gas is cooled by water, it can contribute to prevention of a warming phenomenon. Therefore, the use of the apparatus of the present invention is extremely effective in environmental protection.

The present apparatus has a structure in which water in the water tank 7 is circulated so that water used for removing soot and oil can be effectively used. That is, as illustrated in FIG. 2, a pump 14 is provided in a water pipe 22 between the water supply port 12 on the upper side of the water spray plate 11 and the water tank 7, and the water in the water tank 7 is pumped up to form the water spray plate 11. It is structured to supply on top. Further, the water level of the water W in the water tank 7 is constantly adjusted by the ball tap 15.

The water in the water tank 7 is pumped up to raise the rising chamber 9
When water is sprinkled inside, the amount of water in the water tank naturally decreases, but even when the amount of water decreases, the ball tap 15 is operated so that a sufficient amount of water is always secured, and the amount of water is replenished.
A constant water level is maintained.

When the kitchen is not used, since the apparatus is stopped, the water sprinkled in the ascending chamber 9 flows into the water tank all at once, overflows from the overflow port 16 and passes through the grease wrap 17 to drain the water. Is done. Therefore, the water tank 7
The water that is contaminated by adsorbing soot and oil therein overflows and is drained every time the apparatus is stopped, so that the circulating water does not remain contaminated.

In the above embodiment, the perforated plates P1 to P
The number of sheets and the inclination angle of No. 3 are not particularly limited. Further, the diameter of the hole of the perforated plate is suitably about 3 to 8 mm, but is not limited to this dimension. Further, the plate thickness is also arbitrary.

The inlet 5 can also be opened on the left side wall 3 side or the right side wall 4 side, and the orientation of the inlet 5 can be adjusted flexibly according to the structure of the kitchen and the arrangement of nearby buildings. Can be changed. If the water supply port 12 is formed in a slit shape parallel to the ridge of the roof-shaped watering plate 11, water can be more uniformly supplied to the entire surface of the watering plate 11.

The lower end of the partition wall 10 may be hung straight down as shown in FIG. 1, but may be deformed as shown in FIG. 2 to disperse the water flow.

[0032]

According to the first aspect of the present invention, since the descending duct for introducing the smoke exhaust downward and the rising chamber for raising the exhaust smoke are arranged adjacently above the water tank, the smoke exhaust falls. At that time, soot and oil collide with the water in the lower tank,
Soot and oil are adsorbed in water. Moreover, the water sprinkled by the water sprinkling means on the upper side of the ascending chamber flows down by the guide means into the passage between the descending duct and the ascending chamber, and a water curtain is formed. Thus, soot and oil are adsorbed and purified more reliably.

According to the second aspect of the present invention, the bottom plate is provided at the lower part of the ascending chamber so that the descending duct side is lowered, so that the water tank surface on the lower side of the descending duct is moved by the force of the water flowing down on the bottom plate. The area of contact with soot and oil coming down the descending duct increases, so that soot and oil can be more reliably adsorbed in the water tank.

According to the third aspect of the present invention, the perforated plate is disposed under the water sprinkling means so as to be inclined in a substantially C-shape, so that the sprinkled water is guided by the C-shaped perforated plate. While flowing down
Since the water leaks from many holes of the perforated plate and is sprayed like a shower and rebounds and splashes, the chance of contact between the flowing water and the soot or oil increases, and the soot or oil can be more reliably adsorbed. The smoke from which soot and oil have been removed rises while being guided by the lower surface of the C-shaped perforated plate, and is discharged from the exhaust port.

According to the fourth aspect, since the water in the water tank is pumped up and supplied to the water sprinkling means and circulated, the water consumption is small and economical. In addition, since the water tank is provided with overflow means, the water circulates during operation and does not overflow, but when stopped, the water in the water tank increases and overflows. Therefore, water contaminated by adsorbing soot and oil overflows and is automatically discharged.

As described above, according to the constitutions of claims 1 to 4, the structure is simple, the supply is possible at low cost, and the maintenance is easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a flue gas purifying apparatus according to the present invention, in which a front side wall is cut away to show the inside.

FIG. 2 is a longitudinal sectional view of a center position of the apparatus of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 5 Inlet 6 Outlet 7 Water tank 8 Descending duct 9 Ascent chamber 10 Partition wall 11 Sprinkling plate (sprinkling means) 12 Bottom plate P1 to P3 Inclined perforated plate 13 Gap 14 Pump 16 Overflow port 20 Water curtain

Claims (4)

[Claims] 1. A device for introducing flue gas to remove soot, oil and the like with water and exhausting the exhaust gas. A descending duct for introducing the flue gas downwardly above the water tank, and raising the flue gas. A lift chamber adjacent to the lift chamber, a sprinkling means provided above the lift chamber, and a guide for water sprayed to form a water curtain so as to block a passage between the descending duct and the lift chamber. Means for providing smoke purification. 2. A flue gas purifying apparatus according to claim 1, wherein a bottom plate is provided at a lower portion of said ascending chamber so as to be inclined so that a side of said descending duct becomes lower. 3. The flue gas purifying apparatus according to claim 1, wherein a perforated plate is disposed at least below the water spraying means so as to be inclined in a substantially C-shape. apparatus. 4. The water tank is provided with an overflow means so that the water in the water tank is pumped up and supplied to the water sprinkling means so that the water does not overflow when operating but overflows when stopped. The flue gas purifying apparatus according to claim 1, 2, or 3, wherein