JPH0225648A - Flue gas purifying device - Google Patents

Abstract

PURPOSE:To enable effective purification of soot by means of a small amount of a purifying agent by a method wherein soot generated during cooking is sucked in a purifying device by means of a large air quantity and stored temporarily, and after cooking, the soot is guided to the purifying part by means of a small air quantity for purification. CONSTITUTION:When an oil component and a smell sucked in a flue gas duct 17 by means of a large air quantity passes a storing part 18 situated in a suction port 13, the oil component are adhered to the surface of an adsorbent 21, with which the storing part 18 is formed, for separation, and the smell, simultaneously, is adsorbed to the adsorbent 21 for removal. During this motion, an auxiliary blower 25 is stopped, and energization to a heater 22 and a reheater 24 is also stopped. A passage 26 on the flue gas duct side is closed by means of a damper 27, and the inlet of a bypass passage 20 is opened to form a ventilation flue, the auxiliary blower 25 with which a purifying part 19 is formed is run. Simultaneously, the adsorbent 21 is heated by the heater 22 with which the storing part 18 is formed to emit a component adhered to or adsorbed to the adsorbent 21. The component is guided in the purifying part 19 by means of a small air quantity and after the passage of it through a catalyst 23, it is discharged as purified air through a discharge port 16.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention is applicable to gas ranges used in kitchens, etc.
This relates to a device that purifies oily smoke etc. generated during cooking.

Conventional technology Conventionally, the exhaust gas purification device mortar, which purifies the oil smoke etc. generated during cooking from gas ranges used in kitchens, etc.
As shown in the figure, one end is opened to the side of the burner part 2 of the gas range 1 to serve as an inlet 3, and the other end has an exhaust port 5 that penetrates the wall surface 4 of the house and faces the outdoors. A duct 6 is installed 1, and a discharge blower 7 is provided at the discharge port 5.

Further, a removable grease filter 8 is provided in the smoke exhaust duct 6 near the suction port 3 in order to separate the oil contained in the oil smoke. Note that solid arrows indicate air flow.

When the blower 7 is driven with the above configuration, from the suction port 3 to the discharge port S
An air flow is generated, and oil smoke and the like generated along with the air flow sucked from the suction port 3 are sucked into the smoke exhaust duct. On the other hand, the oil contained in the oil smoke adheres to a grease filter 8 provided near the suction port a and is separated, and then purified air is discharged outdoors from the discharge port 5.

Here, the oil adhering to the grease filter 8 is removed from the smoke exhaust duct 6 and cleaned with detergent or the like.

Problems to be Solved by the Invention However, with the above configuration, the oil adhering to the grease filter must be removed from the smoke exhaust duct and cleaned, resulting in unsanitary conditions such as contamination of the surrounding area during cleaning. There was an issue of being relevant. Another problem was that a large amount of odor generated during cooking is directly discharged to the outside in a short period of time.

The present invention solves these conventional problems, and removes oil and odors by integrally incorporating a purifying agent such as a catalyst and an odor adsorbent inside the smoke exhaust duct, and eliminates oil smoke in the kitchen. The purpose is to effectively collect and dispose of such substances.

Means for Solving the Problems In order to solve the above problems, the present invention provides an inlet with one end facing the vicinity of the range, the other end penetrating the wall of the house and facing the outdoors, and A storage section that temporarily stores oil and odor and a purification section that purifies the oil are built into the smoke exhaust duct which serves as an exhaust port in which an exhaust blower is arranged, and the purification section connects the upstream side to the storage section. It is installed in a bypass path with the downstream side facing the exhaust port, and oil smoke during cooking is collected with a large air volume, and after cooking, the oil and odor in the storage part is introduced into the purification part with a small air volume. It was designed to purify the water.

Effects According to the present invention, with the above-described configuration, oily smoke generated during cooking is sucked into the purifying device by a large air volume, and is temporarily stored in the storage section. On the other hand, after cooking, the oil in the storage section is introduced into the purification section with a small air volume to purify it, and in particular, effective purification can be achieved with a small amount of purification agent.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. Figures 1 and 2 are cross-sectional views showing an embodiment of the present invention, with Figure 1 showing the configuration during the collection operation of oil smoke, etc., and Figure 2 showing the configuration during the purification operation. .

As shown in FIGS. 1 and 2, the flue gas purification device A of the present invention has one end opened to the side of the burner section 12 of the gas range 11 to serve as an inlet 13, and the other end opened to the side of the burner section 12 of the gas range 11, and the other end is opened to the side of the burner section 12 of the gas range 11. A storage part 18 for temporarily storing oil and odor in a smoke exhaust duct 17 which penetrates and is exposed to the outdoors and serves as a discharge port 16 in which a discharge blower 1S is arranged, and a purification part 19 to purify the oil. The purifying section 19 is provided in a bypass passage 20 with an upstream side facing the storage section 18 and a downstream side facing the discharge port 16. Further, the storage section 18 includes an adsorbent 21 made of activated carbon formed into a honeycomb shape, and a heater 22 for heating the adsorbent 21 disposed near the upstream side of the adsorbent 21 . On the other hand, the purification section 19 includes a catalyst 23 formed into a honeycomb shape, a reheating heater 24 disposed upstream of the catalyst 23 for reheating the air flow introduced into the purification section 19, and an auxiliary heater 24 disposed downstream of the catalyst 23. It consists of a blower 25. Further, a damper 27 is provided at the entrance of the bypass passage 20 to selectively close either the entrance of the bypass passage 2o or the smoke exhaust duct side passage 26, and at the same time, the amount of air blown by the auxiliary blower 25 is lower than that of the exhaust blower. The amount of air received is set to be considerably higher than the amount of air blown in No. 15. Note that 28 is a hood provided above the gas range 11 to effectively collect oil smoke generated by the gas range 11, and solid arrows indicate air flow.

Next, the operation to collect oil smoke etc. during cooking will be explained. In this operation, as shown in FIG. 1, after the damper 27 closes the inlet of the bypass passage 20 and the smoke exhaust duct side passage 26 is opened, the exhaust air blower 15 is driven. An air flow is generated from 13 to an exhaust port 16, and oil smoke generated in the gas range 11 is sucked into the smoke exhaust tank 17 along with this air flow. In this case, the exhaust blower 15 has sufficient blowing performance to effectively collect oil smoke and the like. On the other hand, when the oil components and odor sucked into the smoke exhaust duct 17 pass through the storage section 18 provided inside the suction port 13, they are attached to and separated from the surface of the adsorbent 21 that constitutes the storage section 18. Odor absorbent 2
1 is adsorbed and removed. Note that during this operation, the auxiliary blower 25 is stopped, and the power supply to the heater 22 and the reheating heater 24 is also stopped.

Next, the purification operation after cooking will be explained.

As shown in FIG. 2, this operation is performed by closing the smoke exhaust duct side passage 26 with the damper 27 and creating a ventilation passage with the entrance of the bypass passage 20 open. At the same time as the adsorbent 21 is operated, the adsorbent 21 is heated by the heater 22 constituting the storage section 18.
The components attached or adsorbed to the gas are released and introduced into the purification section 19 with a small amount of air, and after passing through the catalyst 23, the exhaust port 16
The air is discharged as more purified air. In addition,
During this operation, the discharge blower 15 is stopped and the reheating heater 24 provided in the purification section 19
Only when the temperature of the air flow flowing into the catalyst 2 is low
The current is applied until the operating temperature is reached at which the temperature of 3 is effective.

FIGS. 3 and 4 show other embodiments, with FIG. 3 showing the configuration during an operation of collecting oil smoke, etc., and FIG. 4 showing the configuration during a purification operation.

As shown in FIGS. 3 and 4, the flue gas purification device A of this embodiment has one end opened to the side of the burner section 12 of the gas range 11 to serve as an inlet 13, and the other end opened to the side of the burner section 12 of the gas range 11, and the other end is opened to the side of the burner section 12 of the gas range 11. A storage part 18 for temporarily storing oil and odor in a smoke exhaust duct 17, which is an exhaust port 16 which penetrates through and faces the outdoors, and has a discharge blower 15 disposed therein; and a purification part 19 which purifies the oil.
The purification section 19 has a bypass passage 20 whose upstream side faces the storage section 18 and whose downstream side faces the discharge port 16.
It is set up and configured inside. Further, the storage section 18 includes an adsorbent 21 made of activated carbon formed into a honeycomb shape, and a heater 22 for heating the adsorbent 21 disposed near the upstream side of the adsorbent 21 . On the other hand, the purification section 19 includes a catalyst 23 formed in a honeycomb shape, and is arranged upstream of the catalyst 23.
It is composed of a reheating heater 24 that reheats the air flow introduced into the air. Further, at the entrance of the bypass passage 20, an entrance of the bypass passage 20 or a smoke exhaust duct side passage 2 is provided.
A tamper 27 is provided for selectively closing one of the air blowers 6, and at the same time, the amount of air blown by the exhaust blower 15 can be set and varied to at least two types of air amounts. Note that 28 is a hood provided above the gas range 11 to effectively collect oil smoke generated by the gas range 11, and solid arrows indicate air flow.

Next, the operation to collect oil smoke etc. during cooking will be explained. In this operation, as shown in FIG. 3, after closing the entrance of the bypass passage 20 with the damper 27 and opening the smoke exhaust duct side passage 26, the exhaust blower 15 is operated with a large air volume performance. When operating, air flows from the intake port 13 to the exhaust port 16, and the oil smoke generated in the gas range 11 is removed.
The air is sucked into the smoke exhaust duct 17 along with this air flow. In this case, since the discharge blower 15 is set to have a large air volume performance, it can effectively collect oil smoke and the like. on the other hand,
The oil components and odor sucked into the smoke exhaust duct 17 are removed from the intake port 1.
When passing through the reservoir 18 provided inside 3, the reservoir 1
At the same time, the odor is adsorbed and removed by the adsorbent 21. Note that during this operation, power supply to the heating heater 22 and the reheating heater 24 is also stopped.

Next, the purification operation after cooking will be explained.

As shown in FIG. 3, this operation is performed by closing the smoke exhaust duct side passage 26 with the damper 27 and opening the inlet of the bypass passage 20. At the same time, the smoke exhaust blower 15 is operated at a small air volume and the smoke is stored. The adsorbent 21 is heated by the heater 22 constituting the part 18 to release the components attached or adsorbed to the adsorbent 21, and introduced into the purification part 19 with a small air volume, and after passing through the catalyst 23, the adsorbent 21 is discharged from the exhaust port 16. The air is discharged as more purified air. Note that during this operation, the reheating heater 24 provided in the purification section 19 is energized only when the temperature of the air flow flowing into the bypass passage 20 is low, until it reaches an operating temperature that makes the catalyst 23 work effectively. It is something to do.

As explained above, in order to collect oily smoke generated during cooking, a large air volume is used to effectively adhere to and adsorb onto the adsorbent 21, and the collected oil components are temporarily stored. , the air is introduced into the catalyst 23 with a small amount of air, and is discharged after purification.

Effects of the Invention As described above, the flue gas purification device of the present invention has the following effects.

(1) The smoke exhaust duct contains a purifying agent and an adsorbent, and at the same time has a regeneration function, so there is almost no need for human labor to dispose of oil, etc., and it is extremely clean.

(2) Since it operates with a large air volume during cooking and a small air volume after cooking, it can effectively collect oil smoke, etc., and at the same time, it can effectively purify with a very small amount of purifying agent such as a catalyst, making the device compact. can be converted into

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of an exhaust gas purification device showing one embodiment of the present invention during the operation of collecting oil smoke, etc., Fig. 2 is a cross-sectional view of the same device during purification operation, and Fig. 3 is the implementation at the same location. FIG. 4 is a cross-sectional view of the embodiment during the cleaning operation of the example, and FIG. 5 is a cross-sectional view of the conventional example. A...Exhaust smoke purification device, 13...Intake port, 14...Wall surface, 15...Exhaust blower, 16...Exhaust port, 17... Smoke exhaust duct, 18... Storage section, 19... Purification section, 2
0... Bypass path, 25... Auxiliary blower. Name of agent Patent attorney Yabusu ↓ Haka 1 person A
-Eleven year old is rich and thorny! f3~ Inlet 14-11 f 15-11 Tm blower I6- Non-exit 17--Wandering duct b 18--Reservoir 19--1 Yoi and 8 people p 20-- -1<,<Pass path 25---Auxiliary shipping vN2 Figure 1

Claims (5)

[Claims] (1) One end is an inlet facing the vicinity of the range, and the other end is an exhaust port that penetrates the wall of the house and faces the outdoors, and is equipped with an exhaust blower. It has a built-in storage part that temporarily stores odor and a purification part that purifies oil, and the purification part has an upstream side facing the storage part,
The exhaust system is installed in a bypass passage with the downstream side facing the exhaust port, and oil smoke during cooking is collected with a large air volume, and after cooking, oil and odors in the storage area are introduced into the purification part with a small air volume and purified. Smoke purification device. (2) The exhaust gas purification device according to claim 1, wherein the storage section is composed of an adsorbent using activated carbon and a heater that heats it, and the purification section uses a catalyst. (3) The exhaust gas purification device according to claim 1 or 2, further comprising a damper that selectively closes either the bypass passage entrance or the smoke exhaust duct. (4) Exhaust smoke purification according to claim 1, wherein the purification section has an auxiliary blower with an air volume smaller than that of the exhaust blower, and during purification operation, the exhaust blower is stopped and the auxiliary blower is operated. Device. (5) The exhaust gas purification device according to claim 1, wherein the exhaust air blower blows a large amount of air during the collection operation and has a small amount of air during the purification operation.