JP2008196800A - Exhaust processing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exhaust processing system which reduces noise, simplifies or eliminates maintenance, and decreases time and labor for maintenance. <P>SOLUTION: This exhaust processing system includes: a scavenging hood 1 installed indoors 2 for scavenging air containing floating oil particles; a duct 5 connected to the scavenging hood 1, and installed extending from the indoors 2 to the outdoors 7 for carrying the air; and a blowing unit 8 having a blowing means 9, which is connected to the duct 5 and installed outdoors 7, wherein an oil separation mechanism 3 for separating oil from the air containing floating oil particles is provided in two or more places including at least one place in the scavenging hood 1 and one place in the blowing unit 8, oil sump parts 10a, b, c, oil feed pipes 12a, b, c, 13a, b, c, and oil feeders 11 are connected to the respective oil separation mechanisms 3, and an oil processing means 14 is connected to an oil feed pipe 13. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an exhaust treatment system that purifies and exhausts oil particles floating in a space such as a home kitchen or a commercial kitchen.

  In recent years, ventilation systems such as home kitchens and commercial kitchens are required not only to clean indoor air but also to clean and exhaust polluted air from the viewpoint of outdoor environment conservation. In order to solve this problem, an exhaust treatment system in which a filter or the like is provided in the exhaust path has been developed.

  Conventionally, this type of exhaust treatment system is known in which a filter and a fan are provided in a hood installed indoors (see, for example, Patent Document 1).

  Hereinafter, the exhaust treatment system will be described with reference to FIG. In FIG. 5, reference numeral 101 denotes a hood installed above the cooking table 103 in the indoor 102, and is connected to an exhaust port 106 opened to the outdoor 105 via a duct 104. Reference numeral 107 denotes a fan provided inside the hood 101, a filter 108 is attached to the suction side 107 a, and the discharge side 107 b is connected to the duct 104.

  When the air containing the oil particles generated in the cooking table 103 and floating in the air is sucked from the hood 101 by the fan 107, the oil particles are collected by the filter 108 and then become clean air from the duct 104. The air is exhausted to the outdoors 105 through the exhaust port 106.

  Further, another conventional exhaust treatment system is known which includes a hood, a duct, a fan, and a filter (see, for example, Patent Document 2).

  The system will be described below with reference to FIG. In FIG. 6, reference numeral 111 denotes a hood installed above the cooking table 113 in the indoor 112, and is connected to a suction side 117 a of a fan 117 installed in the outdoor 115 via a duct 114. Reference numeral 118 denotes a filter provided on the discharge side 117 b of the fan 117, and a downstream side of the filter 118 is connected to an exhaust port 116 opened to the outdoor 115.

The air generated in the cooking table 113 and containing oil particles floating in the air is collected by the hood 111 and exhausted from the duct 114 through the exhaust port 116 to the outdoor 115 by the fan 117. At this time, there is a filter 118 between the fan 117 and the exhaust port 116, and when air containing oil particles passes through the filter 118, the air is adsorbed by the filter 118 and purified air is removed outdoors 115. To exhaust.
Japanese Patent Laid-Open No. 9-318120 (page 4, FIG. 1) Japanese Patent Laid-Open No. 2001-218823 (page 9, FIG. 1)

  In the conventional exhaust treatment system as shown in Patent Document 1, since the fan 107 is provided inside the hood 101 installed in the indoor 102, there is a problem that noise caused by the fan 107 is large during cooking.

  Further, in the conventional exhaust treatment system as shown in Patent Document 2 as one means for solving this problem, since the filter 118 is provided in the outdoor 115, it takes time to maintain the filter 118. There was a problem.

  The present invention solves such a conventional problem, and provides an exhaust treatment system that reduces noise caused by a fan, simplifies or eliminates maintenance of a filter and the like, and reduces maintenance work. The purpose is that.

  In order to achieve the above object, the exhaust treatment system of the present invention is installed indoors and outdoors from a collection hood for collecting air containing oil particles that are installed indoors and floating. An oil separation mechanism for separating oil from air containing floating oil particles, comprising a duct for transporting the generated air and a blower unit having a blower unit connected to the duct and installed outdoors. Provided at a plurality of locations including at least one location of the collection hood and one location of the blower unit, each oil separation mechanism is connected to an oil reservoir, an oil feed pipe, and an oil feed device, and the oil feed pipe has an oil treatment means. Are connected.

  By this means, noise can be reduced by installing the air blowing means outdoors, and maintenance can be simplified or unnecessary by the oil treatment means, thereby reducing the maintenance effort.

  In addition, another means is provided with a grease filter having a small hole as an oil separation mechanism that provides ventilation resistance in the ventilation path from the collection hood to the duct and the blower unit.

  Thereby, the cost of the oil separation mechanism can be reduced.

  Another means is that as an oil separation mechanism provided in the blower unit, the oil attached to the impeller is attached to the casing inner surface by centrifugal force, and the oil is collected in the oil reservoir located at the lowermost end of the casing inner surface. An exhaust fan as an air blowing means having an oil separation function and a grease filter having a small hole that provides ventilation resistance provided in a suction side ventilation path of the exhaust fan are provided.

  Thereby, the function to isolate | separate the oil particle in the collected air can be improved, and the cleanliness of the air exhausted outdoors can be improved further.

  Another means is to use a turbo fan whose rear wheel is an impeller as an exhaust fan.

  Thereby, oil adhesion to an impeller can be prevented and the effort of a maintenance of an exhaust fan can be reduced.

  The other means is that each of the plurality of oil feeding devices is a pump, and one end of an oil feeding pipe attached to the suction side of the pump faces the inside of the oil reservoir, and each of the oil feeding devices attached to the discharge side of the pump. The oil pipes merge to form one oil feed pipe and are connected to one oil processing means.

  Thereby, the cost of an oil treatment means can be made cheap.

  Another means is that each oil reservoir is provided with an oil level detector, and when the oil level detector detects an oil level of a predetermined height, a command is given by the control device to activate each pump. Is.

  Thereby, the oil in the oil reservoir can be automatically sent to the oil processing means, and the oil processing can be reliably performed.

  Another means is that the control device has a timer function, and the timer function counts a predetermined time when the oil level detector detects an oil level of a predetermined height or after the pump has been operated last time. The control device gives a command to activate the pump when any of the conditions are met.

  As a result, the oil treatment can be performed reliably without the oil left in the oil reservoir for a long time solidifying.

  The other means is provided with a combustion burner inside an oil decomposition apparatus as oil treatment means, and oil is burned and decomposed by the combustion burner.

  Thereby, an oil decomposition process can be performed reliably in a short time.

  Further, as another means, an auxiliary blower fan is attached to the oil decomposition apparatus as the oil treatment means, and a catalyst-carrying carrier and heating means are provided inside the oil decomposition apparatus. While supplying oxygen to the inside of an oil decomposition device, the oil adhering and storing on a catalyst and a support | carrier with a heating means is heated to appropriate temperature, and oil is decomposed | disassembled by a catalytic oxidation reaction.

  Thereby, an oil decomposition process can be performed safely in a short time.

  Another means is that the catalyst contains at least either platinum or palladium.

  As a result, the oil can be oxidatively decomposed at a relatively low temperature to reduce the heating energy.

  Another means is that an oil decomposing apparatus as an oil processing means is housed in an independent housing and installed outdoors.

  Thereby, an oil decomposition process can be performed safely.

  Further, the other means is that the oil decomposition apparatus as the oil treatment means includes a carrier impregnated with an enzyme, a water supply route, and a drainage route, and supplies water from the water supply route to the oil adhered and stored on the carrier. The oil is decomposed by the reaction, and then the oil decomposition components are drained together with water from the drainage channel.

  Thereby, oil decomposition processing can be performed safely without using energy such as heat.

  Another means is that an oil decomposing apparatus as an oil processing means is installed below a sink provided in an indoor kitchen.

  Thereby, the connection construction of a water supply path and a drainage path can be performed simply.

  Another means is that an oil coagulant supply device is connected to the oil solidifying device as the oil processing means, and the oil coagulant is periodically supplied from the oil coagulant supply device into the oil solidifying device. Thus, the oil stored in the oil solidifying device is solidified.

  Thereby, the cost of an oil treatment means can be made cheap.

  According to the present invention, it is possible to provide an exhaust treatment system in which noise is reduced by installing the air blowing unit outdoors, and maintenance is simplified or unnecessary by the oil treatment unit, and labor for maintenance is reduced. .

  In addition, the function of separating the collected oil particles in the air is enhanced, and the effect of further increasing the cleanliness of the air exhausted outdoors is also achieved.

  In addition, when combustion or catalytic oxidation is used for the oil decomposition treatment, the oil decomposition treatment can be performed reliably and safely in a short time.

  In addition, when an enzymatic reaction is used for the oil decomposition treatment, the oil decomposition treatment can be performed safely without using energy such as heat.

  In addition, there are effects such as reducing the cost of the equipment and simplifying the construction.

  The invention according to claim 1 of the present invention conveys air that is installed indoors and collects air that contains floating oil particles, and that is connected to the collection hood and is installed indoors to outdoors. An oil separation mechanism for separating oil from air containing floating oil particles is provided at least for the collection hood. Provided at a plurality of locations including one location and one location of the blower unit, each oil separation mechanism is connected to an oil reservoir, an oil feed pipe and an oil feed device, and an oil treatment means is connected to the oil feed pipe Thus, by installing the air blowing means outdoors, noise is reduced, and the oil treatment means simplifies or eliminates the need for maintenance, thereby reducing the labor required for maintenance.

  The invention according to claim 2 of the present invention provides an oil separation mechanism by providing a grease filter having a small hole as a ventilation resistance in the ventilation path from the collection hood to the duct and the air blowing unit as the oil separation mechanism. It has the effect of reducing the cost of the mechanism.

  According to a third aspect of the present invention, as an oil separation mechanism provided in the blower unit, the oil attached to the impeller is attached to the inner surface of the casing by centrifugal force, and the oil is stored in the oil reservoir located at the lowermost end of the inner surface of the casing. Are collected by providing an exhaust fan as a blowing means having an oil separation function and a grease filter having a small hole that provides ventilation resistance provided in the suction side ventilation path of the exhaust fan. In addition, the function of separating the oil particles in the air is enhanced, and the cleanliness of the air exhausted outdoors is further enhanced.

  The invention according to claim 4 of the present invention has the effect of preventing the adhesion of oil to the impeller and reducing the maintenance work of the exhaust fan by using a turbo fan having a rear blade as the exhaust fan. Have.

  In the invention according to claim 5 of the present invention, each of the plurality of oil feeding devices is a pump, and one end of an oil feeding pipe attached to the suction side of the pump faces the inside of the oil reservoir and is attached to the discharge side of the pump. Each of the oil feed pipes merged into one oil feed pipe and connected to one oil processing means has the effect of reducing the cost of the oil processing means.

  According to the sixth aspect of the present invention, each oil sump is provided with an oil level detector, and when the oil level detector detects an oil level of a predetermined height, a command is given to activate each pump. By giving by the control device, the oil in the oil reservoir can be automatically sent to the oil processing means, and the oil processing can be performed reliably.

  According to the seventh aspect of the present invention, the control device has a timer function. When the oil level detector detects the oil level of a predetermined height, or after the pump has been operated last time, When any condition is met when the time is counted, the control device gives a command to activate the pump, so that the oil left in the oil reservoir for a long time does not solidify and the oil treatment is performed. It has the effect that it can be performed reliably.

  The invention according to claim 8 of the present invention includes a combustion burner inside an oil decomposition apparatus as an oil treatment means, and burns and decomposes oil by the combustion burner, thereby reliably performing the oil decomposition treatment in a short time. Has the effect of being able to

  According to a ninth aspect of the present invention, an auxiliary blower fan is attached to an oil decomposition apparatus as an oil treatment means, and a support carrying a catalyst and a heating means are provided inside the oil decomposition apparatus, and the auxiliary blower fan is provided. In this way, oxygen in the air is supplied to the inside of the oil decomposing unit, and the oil adhering to the catalyst and the carrier is heated to an appropriate temperature by heating means, and the oil is decomposed by catalytic oxidation reaction, so that the oil decomposing process can be performed in a short time. It has the effect that it can be performed safely.

  The invention according to claim 10 of the present invention has an effect of reducing the heating energy by oxidizing and decomposing the oil at a relatively low temperature by containing at least either platinum or palladium.

  According to the eleventh aspect of the present invention, the oil decomposing apparatus as the oil processing means is housed in an independent housing and installed outdoors, so that the oil decomposing process can be performed safely. Have.

  According to a twelfth aspect of the present invention, an oil decomposing apparatus as an oil treatment means includes a carrier impregnated with an enzyme, a water supply path, and a drainage path, and supplies water from the water supply path to the oil adhered and stored on the carrier. Supplying and reacting with enzymes to decompose oil, and then draining oil decomposition components together with water from the drainage route, the oil decomposition treatment can be performed safely without using energy such as heat. Have.

  According to the thirteenth aspect of the present invention, the oil decomposing device as the oil processing means is installed below the sink provided in the indoor kitchen, so that the connection work between the water supply route and the drainage route can be easily performed. Has the effect of being able to

  According to the fourteenth aspect of the present invention, an oil coagulant supply device is connected to the oil solidifying device as the oil processing means, and the oil coagulant is periodically supplied from the oil coagulant supply device inside the oil solidifying device. By being supplied, the oil stored inside the oil solidifying apparatus is solidified, and the cost of the oil processing means is reduced.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

(Embodiment 1)
FIG. 1 is a cross-sectional configuration diagram of an exhaust treatment system according to Embodiment 1 of the present invention.

  In FIG. 1, reference numeral 1 denotes a collection hood that is installed above the cooking table 2 a in the indoor 2 and collects air that contains floating oil particles, and is used as an oil separation mechanism 3 to ventilate the ventilation path 4. A metal grease filter 3a having a small hole for resistance is provided. The oil separation mechanism 3 having such a configuration can be made relatively inexpensive. Reference numeral 5 denotes a duct connected to the collection hood 1 for conveying air installed from the indoor 2 through the wall 6 to the outdoor 7. Reference numeral 8 denotes a blower unit having an exhaust fan 9a as a blower unit 9 connected to the duct 5 and installed in the outdoors 7, and has a ventilation resistance as an oil separation mechanism 3 in the suction side ventilation path 9b of the exhaust fan 9a. A metal grease filter 3b having a small hole is provided. As the exhaust fan 9a, a turbo fan having an impeller 9c facing backward with respect to the rotational direction is used, whereby oil attached to the impeller 9c is attached to the inner surface of the casing 9d by centrifugal force, and the innermost surface of the casing 9d is The oil is separated by collecting oil at the lower end 9e. The reason why the rear fan turbo fan is used for the impeller 9c is that the oil adhering surface of the blade is convex, and the oil adhering to the impeller 9c is likely to be blown away by centrifugal force. The attached oil is less likely to be blown off by centrifugal force), and the oil accumulation adherence to the impeller 9c is reduced as much as possible to reduce the maintenance work of the exhaust fan 9a.

  The oil filters 10a, 10b, and 10c for storing the separated oil are provided at the lowermost ends 9e of the grease filters 3a and 3b and the casing 9d, and the oil reservoirs 10a, 10b, and 10c are respectively supplied with oil. One end of oil supply pipes 12a, 12b, and 12c attached to the suction side of pumps 11a, 11b, and 11c as the device 11 is exposed. The oil feed pipes 13a, 13b, and 13c attached to the discharge sides of the pumps 11a, 11b, and 11c merge to form one oil feed pipe 13 and are connected to one oil processing means 14. The oil reservoirs 10a, 10b, and 10c have oil level detectors (optical prism type oil level sensors) 15a, 15b, and 15c inside, and control devices 16a, 16b, and 16c in the vicinity. Each is provided.

  The oil treatment means 14 is the oil decomposing apparatus 14a in the first embodiment, and is housed in an independent housing 17 and installed outdoors 7. An auxiliary blower fan 18 is attached to the oil decomposition apparatus 14a, and a carrier 19b carrying a catalyst 19a containing at least either platinum or palladium and a heater 20a as a heating means 20 are provided inside the oil decomposition apparatus 14a. ing. In the first embodiment, in order to reduce the cost, the oil feeding pipes 13a, 13b, and 13c are joined and connected as one oil feeding pipe 13 to one oil processing means 14, but it is necessary. Accordingly, a plurality of oil processing means 14 may be provided. In the first embodiment, the grease filters 3a and 3b as the oil separation mechanism 3 are provided inside the collection hood 1 and the air blowing unit 8. However, if necessary, they are added inside the duct 5, for example. (In that case, an accompanying oil reservoir, pump, oil feed pipe, oil level detector, and control device are also added).

  Next, the operation in the first embodiment will be described. Oil generated when cooking on the cooking table 2a floats in the air above the cooking table 2a as oil particles. The exhaust fan 9a starts operation by a switch operation or a timer (not shown), and the air containing oil particles above the cooking table 2a is collected by the collection hood 1, and the grease filter 3a to the duct 5 to the grease filter 3b to the exhaust fan 9a are sent in this order and discharged to the outdoors 7. At this time, first, oil particles in the air that collide with the grease filter 3a in the collection hood 1 are separated and collected in the oil reservoir 10a. The residual oil particles that could not be recovered by the grease filter 3a then collide with the grease filter 3b in the blower unit 8 and are separated and recovered by the oil reservoir 10b. Further, residual oil particles having a relatively small particle size that could not be recovered by the grease filter 3b adhere to the inner surface of the casing 9d by centrifugal force when the oil particles adhered to the impeller 9c pass through the impeller 9c of the exhaust fan 9a. Then, the adhered oil is separated and collected by the oil reservoir 10c located at the lowermost end 9e of the inner surface of the casing 9d by gravity. As described above, the reason why a plurality of oil separation mechanisms 3 including an oil separation function are provided is that the function of separating the oil particles in the collected air is enhanced, and the cleanliness of the air exhausted to the outdoors 7 is further enhanced. Therefore, in the first embodiment, the oil collection efficiency can be secured at least 90% or more.

  The oil separated and collected in the oil reservoirs 10a, 10b, and 10c is supplied to the oil level detectors 15a, 15b, and 15c at a predetermined oil level (for example, 2/3 the height of the oil reservoir depth). The oil processing means is detected by the pumps 11a, 11b, 11c from the oil feeding pipes 12a, 13a, the oil feeding pipes 12b, 13b, and the oil feeding pipes 12c, 13c. By being sent to the oil decomposing apparatus 14a as 14, it is possible to automatically and reliably shift to the oil decomposing process. In the oil decomposition step, the heater 20a as the heating means 20 is energized to heat the carrier 19b, and the auxiliary blower fan 18 is operated to supply air to the carrier 19b. By heating the carrier 19b, the temperature of the catalyst 19a carried on the carrier 19b and the oil deposited and stored on the carrier 19b rises, and the air in the air supplied when the activation temperature of the catalyst 19a as an appropriate temperature is reached. Oxygen and oil undergo a catalytic oxidation reaction, and the oil component is decomposed into carbon dioxide and water vapor and discharged to the outdoors 7. This decomposition method using the catalyst 19a can efficiently decompose oil in a short time. In the first embodiment, when used in a general household kitchen, the amount of oil generated per day is reduced to 30. It can be decomposed in about minutes. The material of the catalyst 19a includes at least either platinum or palladium for the purpose of oxidatively decomposing oil at a relatively low temperature (about 200 to 300 ° C.) to reduce heating energy. There may be.

  The operation of the pumps 11a, 11b, and 11c is performed by the oil level detectors 15a, 15b, and 15c detecting the oil level at a predetermined height of the oil reservoirs 10a, 10b, and 10c according to the commands of the control devices 16a, 16b, and 16c. If the oil recovery amount is small and the pumps 11a, 11b, and 11c are not operated frequently, the oil is left in the oil reservoirs 10a, 10b, and 10c for a long time to solidify, and the pumps 11a, 11b and 11c may prevent oil feeding. Therefore, in the first embodiment, the control devices 16a, 16b, and 16c have a timer function, and when the oil level detectors 15a, 15b, and 15c detect the oil level of a predetermined height, or the pumps 11a and 11b. The controller 16a, 16b, 16c gives a command to operate the pumps 11a, 11b, 11c when any of the conditions is met when the timer function counts a predetermined time after the previous operation of 11c. Is. As a result, even if the oil level detectors 15a, 15b, and 15c do not detect the oil level, the pumps 11a, 11b, and 11c start oil feeding at a predetermined time, so it is ensured before the oil solidifies. It is possible to shift to an oil decomposition step. In the first embodiment, the oil is oxidatively decomposed at a relatively low temperature (about 200 to 300 ° C.) to ensure safety. However, in the unlikely event of an abnormal temperature rise in the oil decomposing apparatus 14a, The oil decomposing device 14 a is housed in an independent housing 17 and installed outdoors 7 so as not to affect the equipment. As a result, further safety can be ensured.

  Thus, according to this Embodiment 1, while installing the ventilation means 9 in the outdoors 7, noise is reduced, maintenance is unnecessary by the oil treatment means 14, and the effort and cost concerning maintenance are reduced. It is possible to do.

(Embodiment 2)
The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. FIG. 2 is a configuration cross-sectional view of an exhaust treatment system according to Embodiment 2 of the present invention.

  In FIG. 2, reference numeral 31 denotes a combustion burner provided inside an oil decomposition apparatus 14 a serving as the oil processing means 14, to which a vaporizing heater 32, an ignition device 33, and a burner fan 34 are attached. The oil sent from the oil feed pipe 13 to the oil decomposing device 14 a is vaporized by the vaporizing heater 32 and becomes in a state where it is easy to burn, and then ignited by the ignition device 33 and in the air supplied by the operation of the burner fan 34. Combusted together with oxygen, the oil component is decomposed into carbon dioxide and water vapor and discharged to the outdoors 7. By this method, the oil decomposition treatment can be reliably performed in a short time. In the first embodiment, when used in a kitchen of a general household, the daily oil generation amount can be decomposed in about 3 minutes.

(Embodiment 3)
The same parts as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. FIG. 3 is a configuration cross-sectional view of an exhaust treatment system according to Embodiment 3 of the present invention.

  In FIG. 3, an oil decomposing apparatus 14a as the oil processing means 14 is installed below the sink 2b provided in the kitchen of the indoor 2, and a carrier 41b impregnated with an enzyme 41a is provided inside, and the oil decomposing apparatus 14a A water supply path 42 and a water supply valve 42a are provided in the upper part, and a drainage path 43 and a drain valve 43a are provided in the lower part of the oil decomposition apparatus 14a. The enzyme 41a may be any oil that can be decomposed, such as lipase.

  Next, the operation in the third embodiment will be described. When processing the oil sent from the oil feed pipe 13 to the oil decomposing apparatus 14a, first, the water supply valve 42a is opened and water is supplied into the oil decomposing apparatus 14a from the water supply path 42, so that predetermined water is accumulated. After that, the water supply valve 42a is closed. At this time, the carrier 41b is soaked in water, and the oil is decomposed by the reaction of the enzyme 41a impregnated in the carrier 41b. After that, the drain valve 43a is opened, and the oil decomposing component together with the water is discharged from the drain passage 43. Drain. In this method, although it takes time to decompose the oil, the oil can be decomposed without using energy such as heat, so that energy can be saved. Further, since no heat is used, the oil decomposing apparatus 14a does not become an abnormal temperature, and the oil decomposing apparatus 14a is installed below the sink 2b provided in the kitchen of the indoor 2 as in the third embodiment. But there is no safety problem. Further, by installing the oil decomposing device 14a below the sink 2b near the water pipe, there is an effect that the connection work between the water supply path 42 and the drainage path 43 can be easily performed.

(Embodiment 4)
The same parts as those in the first to third embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. FIG. 4 is a configuration cross-sectional view of an exhaust treatment system according to Embodiment 4 of the present invention.

  In FIG. 4, an oil solidifying device 51 is provided as the oil processing means 14, and the oil solidifying device 51 is provided with an oil coagulant supply device 52 and a disposal lid 53 attached to the lower part. The oil sent from the oil feed pipe 13 to the oil solidifying device 51 is stored in the oil solidifying device 51, but the oil coagulant is periodically supplied from the oil coagulant supplying device 52, so that the oil The oil stored in the solidifying device 51 is solidified. The user needs to open the waste lid 53 periodically to discard the solidified oil, but there is no need to disassemble the equipment and perform maintenance such as cleaning as in the conventional case, simplifying the maintenance and reducing labor. Can be made. Moreover, this method can relatively reduce the cost of the oil processing means 14. The oil coagulant may be supplied periodically as long as the stored oil can be solidified. For example, the oil coagulant is supplied about once a day.

  The exhaust treatment system of the present invention is useful as an application for purifying and exhausting oil particles floating in a space such as a home kitchen or a commercial kitchen, and for purifying oil mist floating in a factory or the like. Is also applicable.

1 is a cross-sectional configuration diagram illustrating an exhaust treatment system according to a first embodiment of the present invention. Configuration sectional view showing an exhaust treatment system of Embodiment 2 of the present invention Configuration sectional view showing an exhaust treatment system of Embodiment 3 of the present invention Configuration sectional view showing an exhaust treatment system of Embodiment 4 of the present invention Cross-sectional view showing a conventional exhaust treatment system Cross-sectional view showing a conventional exhaust treatment system

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Collection hood 2 Indoor 2b Sink 3 Oil separation mechanism 3a, 3b Grease filter 4 Ventilation path 5 Duct 7 Outdoor 8 Blower unit 9 Blower unit 9a Exhaust fan 9b Suction side ventilation path 9c Impeller 9d Casing 9e Bottom end 10a, 10b, 10c Oil reservoir 11 Oil supply device 11a, 11b, 11c Pump 12a, 12b, 12c Oil supply tube 13 Oil supply tube 13a, 13b, 13c Oil supply tube 14 Oil treatment means 14a Oil decomposition device 15a, 15b, 15c Oil level detector 16a, 16b, 16c Control device 17 Housing 18 Auxiliary blower fan 19a Catalyst 19b Carrier 20 Heating means 31 Combustion burner 41a Enzyme 41b Carrier 42 Water supply path 43 Drainage path 51 Oil solidifying device 52 Oil coagulant supply device

Claims (14)

A collection hood that is installed indoors and collects air containing floating oil particles, a duct that is connected to the collection hood and transports air that is installed indoors and outdoors, and is connected to the duct And an air separation unit having air blowing means installed outdoors, and an oil separation mechanism for separating oil from the air containing floating oil particles includes at least one portion of the collection hood and the air blowing unit. An exhaust treatment system provided at a plurality of locations including one location, wherein each oil separation mechanism is connected to an oil reservoir, an oil feed pipe and an oil feed device, and an oil treatment means is connected to the oil feed pipe. The exhaust treatment system according to claim 1, wherein a grease filter having a small hole that provides ventilation resistance in a ventilation path from the collection hood to the duct and the blower unit is provided as the oil separation mechanism. As an oil separation mechanism provided in the air blower unit, air that has an oil separation function is obtained by attaching oil attached to the impeller to the inner surface of the casing by centrifugal force and collecting the oil in the oil reservoir located at the lowermost end of the inner surface of the casing. The exhaust processing system according to claim 1, further comprising: an exhaust fan as means, and a grease filter having a small hole for providing ventilation resistance provided in a suction side ventilation path of the exhaust fan. The exhaust processing system according to claim 3, wherein the exhaust fan is a turbofan whose impeller is a backward-wing blade. Each of the plurality of oil feeding devices is a pump, and one end of an oil feeding pipe attached to the suction side of the pump faces the inside of the oil reservoir, and each oil feeding pipe attached to the discharge side of the pump is joined. The exhaust treatment system according to any one of claims 1 to 4, wherein one exhaust pipe is connected to one oil processing means. 6. An exhaust according to claim 5, wherein an oil level detector is provided in each oil reservoir, and a command is given by the control device to activate each pump when the oil level detector detects an oil level of a predetermined height. Processing system. The control device has a timer function, either when the oil level detector detects an oil level of a predetermined height, or when the timer function counts a predetermined time after the pump was last operated. The exhaust treatment system according to claim 6, wherein when the conditions are met, the control device gives a command to operate the pump. The exhaust treatment system according to any one of claims 1 to 7, wherein a combustion burner is provided in an oil decomposition apparatus as oil treatment means, and oil is burned and decomposed by the combustion burner. An auxiliary air blower fan is attached to the oil cracking device as the oil processing means, and a carrier carrying a catalyst and a heating means are provided inside the oil cracking device, and oxygen in the air is decomposed into the oil by the auxiliary air blower fan. The exhaust treatment system according to any one of claims 1 to 7, wherein the exhaust processing system according to any one of claims 1 to 7, wherein the oil is attached to the inside of the apparatus, and the oil adhering and storing on the catalyst and the carrier is heated to an appropriate temperature by the heating means, and the oil is decomposed by catalytic oxidation reaction. . The exhaust treatment system according to claim 9, wherein the catalyst contains at least either platinum or palladium. The exhaust gas treatment apparatus according to any one of claims 8 to 10, wherein the oil decomposition apparatus as the oil treatment means is housed in an independent housing and installed outdoors. An oil decomposing apparatus as an oil treatment means includes a carrier impregnated with an enzyme, a water supply route, and a drainage route, supplies water from the water supply route to the oil adhered and stored on the carrier, and reacts the oil with the enzyme. The exhaust treatment system according to any one of claims 1 to 7, wherein the decomposition component of oil is drained together with water from the drainage path. The exhaust gas treatment system according to claim 12, wherein the oil decomposition apparatus as the oil treatment means is installed below a sink provided in an indoor kitchen. An oil coagulant supply device is connected to the oil solidifying device as the oil treatment means, and the oil solidifying device is regularly supplied from the oil coagulant supply device into the oil solidifying device. The exhaust treatment system according to any one of claims 1 to 7, wherein oil stored inside the gasification apparatus is solidified.

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