JP3147357U - Smoke removal device - Google Patents

Abstract

An object of the present invention is to realize a structure capable of reducing the apparatus size and enhancing the purification capacity when purifying the flue gas in a kitchen.
A partition wall-side porous plate and a rear-falling back wall-side porous plate that are inclined forward and downward are disposed below a mountain-shaped perforated plate through which a water supply pipe penetrates vertically. A gap is provided between the front end and the partition wall, and in order to form a water curtain so as to block the U-turn opening below the partition wall between the descending duct and the rising chamber, It is configured to flow down in a film form along the partition wall, a collision tray is disposed at a height at which a part of the radial sprinkle collides with the partition wall, and is attached to and supported by the water supply pipe. In addition, a slope plate is provided which is inclined forward and downward so that the descending duct side is lowered.
[Selection] Figure 2

Description

The present invention relates to an apparatus that removes smoke, oil, and the like from a flue gas mixed with smoke, oil, etc. generated in a kitchen, purifies and cools the smoke.

Various devices for removing soot and oil from flue gas generated in a kitchen have been proposed, but they have not been widely used because of their complicated structure, high cost, and heavy maintenance burden. As a result, the outer wall of the building becomes dirty due to black kitchen oil drainage, which not only makes the landscape worse, but also pollutes the atmosphere. There are also problems such as polluting nearby parked cars and annoying odors from Chinese food and yakiniku restaurants.
Focusing on such problems, the structure described in Patent Document 1 is proposed in order to realize soot and oil removal devices that can remove soot and oil reliably with a simple structure, are easy to maintain, and are inexpensive. Has been.
Japanese Patent No. 3878764

If it is normal flue gas, it can be sufficiently purified by the apparatus having the structure described in Patent Document 1. However, if the dirt is severe or if it is desired to purify more strongly, the power is insufficient. In particular, there is an unavoidable problem that the water sprinkled from the water supply pipe flows out to the outlet side as it is and the exhaust gas becomes excessively watery. Therefore, when deodorizing with charcoal, charcoal gets wet with water and deodorizing power falls.
If the discharge port is made high in order to avoid this problem, the size of the apparatus increases and the size of the apparatus increases, which causes problems such as the inability to install in a narrow kitchen.
The technical problem of the present invention pays attention to such a problem, and it is not necessary to increase the size of the apparatus while maintaining the basic structure of the apparatus described in Patent Document 1, and it is possible to enhance the exhaust gas purification ability. To realize the structure.

The technical problem of the present invention is solved by the following means. Claim 1 introduces the flue gas generated in the kitchen and the like, and removes the flue and oil with water and cools it before exhausting it into the atmosphere, and then introducing the flue gas downward on the upper side of the water tank. A device in which a descending duct and an ascending chamber for raising the smoke are disposed adjacent to each other with a partition wall therebetween,
While providing a water supply pipe penetrating up and down the position of the angled perforated plate provided in the upper part of the rising chamber,
At least on the lower side of the chevron-shaped perforated plate, a partition-side porous plate P1 inclined forward and a back-wall-side porous plate P2 inclined downward and rearward are disposed, and a front end of the front-falling porous plate P1 and the partition That there is a gap between them,
In order to form a water curtain so as to block the U-turn opening below the partition wall between the descending duct and the rising chamber, it was configured to flow in a film form along the partition wall,
A collision tray for radially spraying water is disposed in a horizontal direction at a height at which at least a part of the radial water spray collides with the partition wall, and is attached and supported using the water supply pipe.
A slope sloped forward and downward so that the descending duct side is lowered at the bottom of the ascending chamber;
It is a flue gas purification apparatus characterized by this.

As described above, since the descending duct for introducing the smoke emission downward and the ascending chamber for raising the smoke emission are arranged adjacent to each other on the upper side of the water tank, when the smoke emission descends, the lower tank Soot and oil collide with the water inside, and soot and oil are adsorbed in the water.
In addition, the flowing water passing through the gap between the front end of the perforated plate P1 inclined downward and the partition wall flows in a film form along the partition wall so that the U-turn port under the partition wall is blocked. Since the curtain is formed, soot and oil in the flue gas is adsorbed by the water curtain and purified more reliably.
Even when the exhaust gas purified in this way collides with the collision dish and rises through the area of radial water sprayed in all directions, soot and oil in the exhaust gas are adsorbed and further purified. .

When the water sprinkled by the above-mentioned colliding tray collides with the surrounding side, partition side porous plate P1, back wall side porous plate P2, etc. In addition, the water curtain is formed as a result of a part of the radial sprinkling colliding with the partition wall.
As the above-mentioned splash rises in the ascending chamber by an updraft and hits or passes through the perforated plate, the water flows down in a film form from the gap between the front-falling perforated plate P1 and the partition wall. It becomes a water curtain.

In this way, the trapped water or oil-contaminated contaminated water captured by radial sprinkling or splashing finally flows down on the slab and flows into the aquarium where the trap or oil has fallen in the descending duct and merges. .
In this way, the water after trapping soot and oil below the chevron perforated plate, the front-falling perforated plate P1, and the rear-falling perforated plate P2 flows down on the swash plate. After falling through the perforated plate P2 and rising, there is little moisture flowing out to the discharge port side, and it becomes purified exhaust with little moisture and flows into the atmosphere. As a result, there is no need to increase the outlet as in the prior art, and the size can be reduced.

According to claim 2, the front end of the swash plate is bent downward, and the portion where the gradient is steeped is submerged in a descending duct region in front of the water curtain.
Piping up the water in the water tank so as to supply it to the water supply pipe. The overflow means is provided at a water level that does not overflow during operation, but overflows when stopped, and in the area of the descending duct. thing,
It is a flue gas purification apparatus of Claim 1 characterized by these.

In this manner, the front end of the swash plate is bent downward, and the portion where the gradient is steeped is submerged in the descending duct region in front of the water curtain, so that the water surface region below the descending duct becomes wide. As the water flowing down on the swash plate violently falls to the surface of the water, the water surface below the descending duct undulates, increasing the contact area with the soot and oil descending the descending duct. And oil can be captured more reliably in water.

Also, the water in the water tank is pumped up so as to be supplied to the water supply pipe, and overflow means is provided at a water level that does not overflow during operation but overflows when stopped, and in the area of the descending duct. In addition, since the soot and oil collected on the water surface in the descending duct area overflow and are discharged, maintenance is facilitated.
Furthermore, in order to pump up the water in the water tank and supply and circulate it to the water supply pipe, it always circulates and supplies sufficient cooling water, sprinkles water, cools the flue gas passing through the device, and then into the atmosphere. Exhaust. As a result, soot and oil in the flue gas are removed, odors and the like are also removed. In addition, it can contribute to prevention of global warming, which is extremely effective for environmental conservation. Furthermore, since the water in the water tank is pumped up and circulated, the consumption of water is small and economical.

According to a third aspect of the present invention, a branch pipe branched from the water supply pipe to the descending duct side is provided downward, and an impact tray for spraying water radially is attached and supported using the branch pipe. It is a flue gas purification apparatus of Claim 1 or Claim 2 characterized by the above-mentioned.
As described above, the branch pipe branched from the water supply pipe to the descending duct side is provided downward, and the collision tray for spraying water radially is attached and supported using the branch pipe. Even in the descending duct, when the exhaust passes through the area of the radial sprinkling that collides with the colliding dish, the soot and oil in the flue gas are adsorbed and dropped into the lower water tank to be purified. .
Further, since the radial water spray collides with the partition wall and flows down to form a water curtain, the flow rate of the water curtain is increased, and the smoke purification action when passing through the water curtain is enhanced.

According to a fourth aspect of the present invention, charcoal is disposed on the upper side of the upper outlet of the ascending chamber so that the exhaust can be deodorized, and the center position of the collision tray is attached to and supported by the support bar at the center of the lower end opening of the water supply pipe. The exhaust gas purification apparatus according to claim 1, 2 or 3, wherein
In this way, charcoal is disposed on the upper side of the discharge port at the top of the ascending chamber, so when the exhaust gas after removing soot and oil passes through the charcoal region, the off-flavor in the exhaust gas is deodorized, Problems that cause inconvenience to neighboring residents are resolved.
Further, since the center position of the collision tray is attached to and supported by the support bar at the center of the lower end opening of the water supply pipe, when the effluent water from the water supply pipe collides with the collision tray and is sprinkled, It is possible to generate radial sprinkling reliably and uniformly over the entire circumference without interfering with uniform sprinkling.

As in claim 1, since the lowering duct for introducing the flue gas downward and the ascending chamber for raising the flue gas are disposed adjacent to each other on the upper side of the water tank, when the flue gas descends, Soot and oil collide with the water in the water tank on the side, and the soot and oil are adsorbed in the water.
In addition, the flowing water passing through the gap between the front end of the perforated plate P1 inclined downward and the partition wall flows in a film form along the partition wall so that the U-turn port under the partition wall is blocked. Since the curtain is formed, soot and oil in the flue gas is adsorbed by the water curtain and purified more reliably.
Even when the exhaust gas purified in this way collides with the collision dish and rises through the area of radial water sprayed in all directions, soot and oil in the exhaust gas are adsorbed and further purified. .

When the water sprinkled by the above-mentioned colliding tray collides with the surrounding side, partition side porous plate P1, back wall side porous plate P2, etc. In addition, the water curtain is formed as a result of a part of the radial sprinkling colliding with the partition wall.
As the above-mentioned splash rises in the ascending chamber by an updraft and hits or passes through the perforated plate, the water flows down in a film form from the gap between the front-falling perforated plate P1 and the partition wall. It becomes a water curtain.

In this way, the trapped water or oil-contaminated contaminated water captured by radial sprinkling or splashing finally flows down on the slab and flows into the aquarium where the trap or oil has fallen in the descending duct and merges. .
In this way, the water after trapping soot and oil below the chevron perforated plate, the front-falling perforated plate P1, and the rear-falling perforated plate P2 flows down on the swash plate. After falling through the perforated plate P2 and rising, there is little moisture flowing out to the discharge port side, and it becomes purified exhaust with little moisture and flows into the atmosphere. As a result, there is no need to increase the outlet as in the prior art, and the size can be reduced.

Since the front end of the swash plate is bent downward as in claim 2 and the portion where the slope is steep is submerged in the descending duct region in front of the water curtain, the water surface region under the descending duct is As it becomes wider, the momentum when the water that has flowed down on the slab violently falls to the surface of the water, the water surface under the descending duct undulates, increasing the contact area with the soot and oil descending the descending duct So, you can capture traps and oil more reliably in the water.

Also, the water in the water tank is pumped up so as to be supplied to the water supply pipe, and overflow means is provided at a water level that does not overflow during operation but overflows when stopped, and in the area of the descending duct. In addition, since the soot and oil collected on the water surface in the descending duct area overflow and are discharged, maintenance is facilitated.
Furthermore, in order to pump up the water in the water tank and supply and circulate it to the water supply pipe, it always circulates and supplies sufficient cooling water, sprinkles water, cools the flue gas passing through the device, and then into the atmosphere. Exhaust. As a result, soot and oil in the flue gas are removed, odors and the like are also removed. In addition, it can contribute to prevention of global warming, which is extremely effective for environmental conservation. Furthermore, since the water in the water tank is pumped up and circulated, the consumption of water is small and economical.

As in claim 3, a branch pipe branched from the water supply pipe to the descending duct side is provided downward, and the branch pipe is used to attach and support a collision tray for spraying water radially. Therefore, even in the descending duct, even when the exhaust passes through the area of radial sprinkling that collided with the collision dish, soot and oil in the flue gas are adsorbed and dropped into the lower water tank for purification. Is done.
Further, since the radial water spray collides with the partition wall and flows down to form a water curtain, the flow rate of the water curtain is increased, and the smoke purification action when passing through the water curtain is enhanced.

Since the charcoal is arranged above the discharge port at the upper part of the ascending chamber as in claim 4, when the exhaust gas after removing soot and oil passes through the charcoal region, a strange odor in the exhaust gas is generated. The problem of deodorizing and annoying nearby residents will be solved.
Further, since the center position of the collision tray is attached to and supported by the support bar at the center of the lower end opening of the water supply pipe, when the effluent water from the water supply pipe collides with the collision tray and is sprinkled, It is possible to spray water uniformly and uniformly on the entire circumference without interfering with uniform watering.

Next, an embodiment of how the flue gas purification apparatus according to the present invention is practically described will be described. 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 in front is broken to show the inside. FIG. 2 is a longitudinal sectional view of the center position of the apparatus of FIG.
The illustrated apparatus 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. A smoke introduction port 5 is formed on the upper side of the front wall 1, and a discharge port 6 is formed on the upper end near the back.
The apparatus of the present invention adsorbs and removes soot and oil in the flue gas with water, and has a built-in water tank 7 at the bottom. Further, on the upper side of the water tank 7, a descending duct 8 that introduces smoke in a downward direction and an ascending chamber 9 that raises and discharges the smoke after the U-turn 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 chevron perforated plate 11 is disposed above the ascending chamber 9, that is, below the discharge port 6, and a water supply pipe 12 penetrates the substantially central position of the chevron perforated plate 11 downward.
The chevron perforated plate 11 in the illustrated example is formed in a chevron shape with two front and rear perforated plates 11a and 11b, and has a structure that extends between the left side wall 3 and the right side wall 4. An open circular umbrella shape is also possible.
In the lower part of the ascending chamber 9, there is provided a swash plate 21 which is inclined forward so that the descending duct 8 side is lowered, and the water tank 7 is provided below the swash plate 21.

On the lower side of the perforated plate 11, perforated plates P1 and P2 are disposed so as to be inclined in a substantially C shape. In other words, the perforated plate P 1 inclined downward and the perforated plate P 2 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 as shown in the figure. Between the front end of the perforated plate P1 inclined downward and the partition wall 10, for example, a gap 13 of about 2 to 8 mm is formed.
Further, on the upper rear side of the mountain-shaped porous plate 11, a porous plate P3 inclined rearwardly to guide the smoke to the discharge port 6 side is arranged, and on the upper side in front of the mountain-shaped porous plate 11, In order to guide the smoke to the discharge port 6 side, a guide plate P4 that is inclined forward and downward is disposed. Each is passed between the left and right side walls 3 and 4.

A collision tray C is attached to the lower end of the water supply pipe 12 at a height at which a part of the radial sprinkler S collides with the partition wall 10. The collision dish C has a circular plate somewhat depressed in a dish shape, and its center is attached and fixed to the water supply pipe 12 by a support bar B.
The support bar B stands at the central portion in the lower end opening of the water supply pipe 12, and the upper end of the support bar B is attached and fixed so as to penetrate the side wall of the water supply pipe 12 sideways. As a result, when the outflow water from the water supply pipe 12 is sprinkled, the support means does not become an obstacle for uniform water spraying, and radial sprinkling can be generated reliably and uniformly over the entire circumference. It is also possible to attach and support the outer periphery of the collision tray C to the outside of the water supply pipe 12 with a plurality of wires or the like.

In this apparatus, as shown in FIG. 2, the smoke exhaust that has been pushed down into the descending duct 8 from the inlet 5 by the force of the exhaust fan 19 of the exhaust duct 18 of the kitchen is When passing through the turn port and ascending in the ascending chamber 9, it passes through the radial sprinkler sprinkled by the impingement dish C on the lower side of the mountain-shaped perforated plate 11, and soot and oil in the passing flue gas Adsorbs etc. and falls.
Further, when the radial water sprayed by the collision tray C collides with the surrounding walls 3 and 4 and the perforated plates P1 and P2 and becomes sprayed, and when the trapping force such as soot and oil increases, both the perforated plates P1 and P2 At the bottom, it becomes a spiral with the momentum of the flue gas flow. Next, ascending to the discharge port 6 side and colliding with or passing through the perforated plates P1 and P2, the water droplets flow down along the perforated plates P1 and P2 and the mountain-shaped perforated plate 11, so the amount of water flowing out to the discharge port 6 side There are few. Then, the water flow that has flowed down on the perforated plate P1 inclined downwardly flows down in a film shape through the gap 13 between the partition walls 10 and spreads down in a water curtain shape. It is knocked off by the water curtain 20 and adsorbed in the water W of the aquarium.

Further, before passing through the water curtain 20, the smoke exhausted down in the descending duct 8 jumps directly into the water W of the aquarium, and soot and oil are adsorbed in the aquarium water. At this time, due to the momentum of the water that has flowed down on the slope 21 inclined downward, the lower water surface of the descending duct 8 undulates, and the contact area with the soot and oil descending the descending duct increases. Captive oil and oil can be captured more reliably in water.
In this way, soot and oil are removed when flue gas jumps into the water W of the aquarium in the first stage, and soot and oil remaining without being removed at this time are removed by the next water curtain 20. The The soot and oil that have not been removed yet are struck down against the water sprinkled by the radial sprinkler S, the peripheral walls 3, 4, and the perforated plates P 1, P 2 when rising in the ascending chamber 9. Flow down and flow into the aquarium. As a result, soot and oil are almost completely removed and purified air flows out from the discharge port 6 into the atmosphere.

Since the charcoal M is packed on the horizontal wire mesh f provided in the exhaust port 6 and the upper portion is closed with the metal mesh F, the exhaust gas after the removal of soot and oil in the flue gas is between the charcoal M. Odor etc. are also removed when passing through, and it is further purified. Moreover, since the flue gas is cooled with water, it can contribute to the prevention of global warming and can prevent hot air from hitting people passing nearby. Therefore, the use of the device of the present invention is extremely effective for environmental conservation. A perforated plate such as punching metal may be used instead of the wire mesh f · F.
This apparatus is structured to circulate water in the water tank 7 so that water used for removing soot and oil can be used effectively. That is, as illustrated in FIG. 2, a pump 14 is provided in the water pipe 22 between the water supply pipe 12 and the water tank 7 at the position of the mountain-shaped perforated plate 11, and the water in the water tank 7 is pumped up to 11 is configured to supply water. Further, the water level of the water W in the water tank 7 is constantly adjusted by the ball tap 15.

When the water in the aquarium 7 is pumped up and water is radially sprinkled by the collision tray C in the ascending chamber 9, the water quantity in the aquarium naturally decreases, but even when such a reduction occurs, a sufficient quantity of water is always secured. As described above, the ball tap 15 is operated to replenish the amount of water and maintain a constant water level.
When the kitchen is not used, the apparatus stops, so that water sprinkled in the ascending chamber 9 flows all at once into the water tank 7, overflows from the overflow port 16, and is drained via the grease strap 17. . Accordingly, the water in the water tank 7 that has become dirty due to adsorption of soot and oil overflows and is drained every time the apparatus is stopped, so that the circulating water does not remain dirty.

A branch pipe 121 branched from the water supply pipe 12 to the descending duct 8 side is provided downward, and a collision tray C for radially spraying water is attached to the support bar B at the center of the lower end opening.
Therefore, when smoke exhausts pass through the radial sprinkle S generated by colliding with the collision dish C, soot and oil are knocked off and adsorbed in the water W of the aquarium. Moreover, since the radial sprinkling S collides with the partition wall 10 and flows down to form the water curtain 20, the water curtain increases as the water curtain flows down on the rising chamber 9 side of the partition wall 10 as described above. Is enhanced.
The branch pipe 121 may be formed of an elbow, and the support bar B at the center of the lower end opening of the branch pipe may be lifted as it is and penetrated and fixed to the upper side of the elbow.

In the above embodiment, the number and the inclination angle of the perforated plates P1 to P3 are not particularly limited. Moreover, although the diameter of the hole of each perforated plate is suitable about 3-8 mm, it is not limited to this dimension. The plate thickness is also arbitrary.
The introduction port 5 can also be opened on the left side wall 3 side or the right side wall 4 side, and the direction of the introduction port 5 can be changed flexibly according to the structure of the kitchen or the arrangement of nearby buildings. Can do. The perforated plates 11a and 11b before and after forming the chevron perforated plate 11 may be separated. Further, the front lowering perforated plate 11a and the perforated plate P1 can be connected or integrated, and the rear lowering perforated plate 11b and the perforated plate P2 can be connected or integrated.
The lower end of the partition wall 10 may be drooped straight as shown in FIG. 1, but the water flow can also be dispersed by deforming it into, for example, a dogleg shape as shown in FIG.

As described above, according to the present invention, since the sprinkling plate provided at the lower end of the water supply pipe generates radial sprinkling below the chevron perforated plate at the top of the smoke exhaust chamber, the trapping rate of soot and oil increases, In addition, a collision tray is also provided on the descending duct 8 side to capture the soot and oil by radial sprinkling and to increase the amount of water in the water curtain. In addition, since the amount of water flowing upward from the chevron-shaped perforated plate is reduced, it is not necessary to make the outlet high, and it is possible to deodorize by providing charcoal at the outlet.

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 broken to show the inside. It is a longitudinal cross-sectional view of the center position of the apparatus of FIG.

Explanation of symbols

5 Inlet 6 Outlet 7 Water tank 8 Lowering duct 9 Ascending chamber 10 Bulkhead 11 Mountain-shaped porous plate 12 Water supply pipe 121 Branch pipes P1 to P3 Inclined porous plate 13 Gap 14 Pump 16 Overflow port 20 Water curtain 21 Slope plate C Collision plate B Support bar S Radial watering
f · F Wire mesh or punching metal M Charcoal

Claims (4)

In order to introduce the flue gas generated in the kitchen, remove the soot and oil with water, cool it, and then exhaust it to the atmosphere, the descending duct that introduces the flue gas downward on the upper side of the water tank, and its A device in which an ascending chamber for raising smoke emission is disposed adjacent to each other with a partition wall therebetween,
While providing a water supply pipe penetrating up and down the position of the angled perforated plate provided in the upper part of the rising chamber,
At least on the lower side of the chevron-shaped perforated plate, a partition-side perforated plate (P1) inclined forward and a back wall-side perforated plate (P2) inclined rearwardly are disposed, and the front-falling perforated plate (P1) A gap is provided between the front end and the partition;
In order to form a water curtain so as to block the U-turn opening below the partition wall between the descending duct and the rising chamber, it was configured to flow in a film form along the partition wall,
A collision tray for radially spraying water is disposed in a horizontal direction at a height at which at least a part of the radial water spray collides with the partition wall, and is attached and supported using the water supply pipe.
A slope sloped forward and downward so that the descending duct side is lowered at the bottom of the ascending chamber;
A flue gas purification device. The front end of the swash plate is bent downward, and the portion where the gradient is steeped is submerged in a descending duct region in front of the water curtain;
Piping up the water in the water tank so as to supply it to the water supply pipe. The overflow means is provided at a water level that does not overflow during operation, but overflows when stopped, and in the area of the descending duct. thing,
The flue gas purification apparatus according to claim 1. A branch pipe branched from the water supply pipe to the descending duct side is provided downward, and a collision tray for spraying water radially is attached and supported using the branch pipe. Item 3. A smoke purification apparatus according to Item 1 or Item 2. Arranging charcoal on the upper side of the discharge port at the top of the ascending chamber so that the exhaust can be deodorized,
4. The exhaust according to claim 1, 2 or 3, wherein a center position of the collision dish is attached to and supported by a support bar at a center of a lower end opening of the water supply pipe and / or the branch pipe. Smoke purification device.

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