JP3886120B2 - Exhaust purification device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an exhaust gas purification apparatus provided with a removing means for removing pollutants in exhaust air.
[0002]
[Prior art]
Conventionally, for example, in kitchen facilities of lunch facilities that generate exhaust air containing pollutants such as oils and fats, such as hotels, restaurants, restaurants, etc., or exhaust ducts for home kitchens, etc., the contamination contained in the exhaust air is contained. An exhaust purification device is installed that removes material and prevents flame transmission to the exhaust duct.
[0003]
Therefore, as this type of exhaust purification device, the configuration described in Japanese Patent No. 3268229 is used.
[0004]
The exhaust purification device described in Japanese Patent No. 3268229 includes a main body having an inflow port through which exhaust air flows and an outflow port through which exhaust air flows out, and flows into the main body from the inflow port. A cylindrical grease filter that captures and removes contaminants contained in the exhausted air is rotatably disposed. Further, a temperature detection sensor for detecting the temperature of the exhaust air is attached above the main body, and above the temperature detection sensor, the temperature of the main body is determined according to the temperature of the exhaust air detected by the temperature detection sensor. A fire damper that changes the opening state of the outlet is attached.
[0005]
When a flame or hot air is generated in a kitchen facility, etc., the temperature detection sensor detects the flame and the like by the temperature, and the outlet is closed by a fire damper, so that the flame is placed in the exhaust duct. To prevent transmission.
[0006]
[Problems to be solved by the invention]
However, in the exhaust gas purification apparatus described in the above-mentioned Japanese Patent No. 3268229, in order to prevent transmission of a flame or the like to the exhaust duct, it is necessary to provide a fire damper and close the outlet with this fire damper. There is a problem that it is not easy to simplify the configuration.
[0007]
The present invention has been made in view of these points, and an object of the present invention is to provide an exhaust emission control device with a simple configuration.
[0008]
[Means for Solving the Problems]
The exhaust purification apparatus according to claim 1, wherein the main body is provided with an inlet through which exhaust air flows in and an outlet through which exhaust air flows out, and at least one of the inlet and the outlet. The exhaust air that is rotatably disposed inside the main body and flows into the main body from the inflow port to capture and remove the pollutants in the exhaust air, and the exhaust air from which the pollutants have been removed is removed. A substantially cylindrical removing means having air permeability that flows out from the outlet, a driving means for rotating the removing means along a circumferential direction of the removing means, beneath A cleaning tank in which a cleaning liquid in which water is immersed is stored, and the removing means Upper outer peripheral surface of An injection means for injecting water or a fire extinguishing liquid toward the removing means, a temperature sensing means for sensing the temperature of the exhaust air flowing into the main body from the inlet, and a temperature sensing means When the temperature of the exhaust air detected in this way is equal to or higher than a predetermined temperature set in advance, the rotation of the removing means is rotated by driving the driving means so as to form a liquid film on the outer peripheral surface of the removing means. Control means for injecting water or fire extinguishing liquid toward the removing means by driving the injection means.
[0009]
And, the substantially cylindrical removal means having air permeability is rotatably disposed in the main body so as to close at least one of the inlet and the outlet of the main body, The cleaning liquid in which the lower part of this removing means is immersed is stored in a cleaning tank, The removing means is a jetting means for spraying water or fire extinguishing liquid toward the removing means. Upper outer peripheral surface of When the exhaust air temperature sensed by the temperature sensing means is equal to or higher than a predetermined temperature, the control means rotates the removal means by driving the driving means while the ejection means is rotating. By driving, water or a fire extinguishing liquid is sprayed to the rotating removing means, and a liquid film is formed on the outer peripheral surface of the removing means with the water or the fire extinguishing liquid and the cleaning liquid stored in the cleaning tank. As a result, for example, transmission of a flame or the like can be reliably prevented by a liquid film formed on the outer peripheral surface of the removing means without separately providing a fireproof damper or the like, so that the configuration can be simplified.
[0010]
The exhaust purification device according to claim 2, wherein the main body is provided with an inlet through which exhaust air flows and an outlet through which exhaust air flows out, and at least one of the inlet and the outlet. The exhaust air that is rotatably disposed inside the main body and flows into the main body from the inflow port to capture and remove the pollutants in the exhaust air, and the exhaust air from which the pollutants have been removed is removed. A substantially cylindrical removing means having air permeability that flows out from the outlet, a driving means for rotating the removing means along a circumferential direction of the removing means, beneath A cleaning tank in which a cleaning liquid in which water is immersed is stored, and the removing means Upper outer peripheral surface of An injection means for injecting the smoke-removing liquid toward the removal means, a temperature detection means for detecting the temperature of the exhaust air flowing into the main body from the inlet, and the temperature detection means When the detected temperature of the exhaust air is equal to or higher than a predetermined temperature set in advance, the removal means is rotated while being rotated by driving the drive means so as to form a liquid film on the outer peripheral surface of the removal means. By the drive of the injection means toward the removal means. smoke And a control means for injecting the liquid.
[0011]
And, the substantially cylindrical removal means having air permeability is rotatably disposed in the main body so as to close at least one of the inlet and the outlet of the main body, The cleaning liquid in which the lower part of this removing means is immersed is stored in a cleaning tank, The removing means is a jetting means for jetting the smoke-dissipating liquid toward the removing means. Upper outer peripheral surface of When the exhaust air temperature sensed by the temperature sensing means is equal to or higher than a predetermined temperature, the control means rotates the removal means by driving the driving means while the ejection means is rotating. The smoke removing liquid is jetted to the rotating removing means by driving, and a liquid film is formed on the outer peripheral surface of the removing means with the smoke eliminating liquid and the cleaning liquid stored in the cleaning tank. As a result, for example, transmission of flame and smoke can be surely prevented by the liquid film formed on the outer peripheral surface of the removing means without separately providing a fire damper or the like, so that the configuration can be simplified.
[0012]
According to a third aspect of the present invention, in the exhaust gas purification apparatus according to the first or second aspect, a plurality of injection means are provided to face the removal means.
[0013]
And, by providing a plurality of injection means facing the removal means, this injection means water, Fire extinguishing liquid Or smoke-removing liquid The liquid film is more reliably formed on the removing means by spraying the liquid to the removing means from a plurality of locations.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the configuration of an embodiment of the exhaust emission control device of the present invention will be described with reference to FIG. 1 and FIG.
[0015]
In FIG. 1, 1 is a kitchen facility. This kitchen facility 1 includes a gas stove 3 as a fire source on which a cooking appliance 2 such as a pan can be placed, or a fryer 4 as a fire source for cooking fried foods. ing. Further, above the gas stove 3 and the fryer 4, an exhaust facility 6 is attached for sucking an exhaust air 5 containing contaminants such as fats and oils generated during cooking and discharging it to the outdoors.
[0016]
The exhaust facility 6 includes a range hood 13 as a canopy attached to the ceiling 12 of the kitchen room 11. The range hood 13 is formed of a heat-resistant and corrosion-resistant incombustible material such as a stainless steel plate, and is expanded downward. Above the range hood 13, an exhaust duct 15 having an exhaust inlet 14 formed at one end and led out outdoors is attached. The exhaust duct 15 includes a fan or a blower (not shown).
[0017]
Further, an exhaust purification device 21 is attached in the range hood 13. The exhaust emission control device 21 includes a main body 22 formed in a substantially rectangular box shape with upper and lower portions opened with a heat-resistant and corrosion-resistant non-combustible material such as a stainless steel plate. In addition, a cylindrical grease filter 23 is disposed in the main body 22 as a removing means having air permeability. The lower opening of the main body 22 has a substantially box having an opening larger than the lower opening. A cylindrical cleaning tank 24 is formed integrally with the main body 22 so as to cover the lower opening. The main body 22 is formed with an inlet 25 through which the exhaust air 5 flows into the main body 22 between the lower end of the main body 22 and the upper end of the cleaning tank 24, and the upper opening of the main body 22 is an exhaust duct. The outlet 26 communicates with 15 exhaust inlets 14. From this outlet 26, the exhaust air 5 flows out to the exhaust duct 15.
[0018]
Here, the grease filter 23 includes a large-diameter frame 31 formed in a substantially cylindrical shape, and the filter body 32 is disposed on the inner peripheral surface of the frame 31 over the entire inner peripheral surface of the frame 31. It is attached and held over. The frame 31 is formed of a metal member such as a stainless steel plate having a plurality of ventilation holes. A rotation shaft 33 is integrally formed with the frame 31 along the axial direction of the frame 31 at the center of the frame 31. In a state of being substantially along the longitudinal direction of 22, it is rotatably disposed and attached in the main body 22. As a result, the grease filter 23 closes the inflow port 25 of the main body 22. Further, the rotation shaft 33 protrudes to one end side in the longitudinal direction of the main body 22, and a speed reduction motor 34 as a driving unit is attached to the tip of the rotation shaft 33. The reduction motor 34 is connected to a power source (not shown), and rotates the grease filter 23 along the circumferential direction of the grease filter 23 via the frame body 31. A cover body 35 formed in a box shape that accommodates the reduction motor 34 is attached to one end side of the main body 22 in the longitudinal direction.
[0019]
On the other hand, the filter body 32 is made endless by superimposing a predetermined metal fiber laminated into a non-flammable, corrosion-resistant and breathable nonwoven fabric and a predetermined metal porous body such as a nickel porous body. Formed and attached to the inner peripheral surface of the frame 31. The grease filter 23 allows the exhaust air 5 that has flowed into the main body 22 through the inlet 25 to flow through the filter body 32 so that fine dust, oil and fat, or tar-like substances in the exhaust air 5 can flow. Such contaminants are captured and removed, and the exhaust air 5 from which these contaminants have been removed flows out from the outlet 26.
[0020]
Further, a water supply / injection pipe 36 as an injection means is disposed on the side of the grease filter 23 in the main body 22 so as to face the upper side surface of the grease filter 23. A pair of cleaning spray pipes 37 and 38 are disposed on both sides of the lower side of the grease filter 23 so as to face the side surface of the grease filter 23. The water supply injection pipe 36 and the cleaning injection pipes 37 and 38 protrude to the same side as the speed reduction motor 34 in the longitudinal direction of the main body 22 and are partly accommodated in the cover body 35, and are provided above the cover body 35. It protrudes above the cover body 35 through a water supply pipe through hole (not shown).
[0021]
The water supply injection pipe 36 is connected to a water supply main pipe 42 via an electric valve 41 such as an electromagnetic valve, and the water supply main pipe 42 is connected to a water supply section (not shown) on the upstream side. Further, the cleaning injection pipes 37 and 38 are joined to each other in the cover body 35 and then connected to the water supply main pipe 42 via the electric valve 43. The water 44 supplied from the water supply section through the water supply main pipe 42 passes through the water supply injection pipe 36 and the cleaning injection pipes 37 and 38.
[0022]
A plurality of water supply injection ports 45 are formed on the side surface of the water supply injection pipe 36 facing the grease filter 23 so as to be separated from each other along the longitudinal direction of the water supply injection pipe 36. Similarly, a plurality of cleaning injection ports 46 and 47 are formed on the side surfaces of the cleaning injection pipes 37 and 38 facing the grease filter 23 so as to be separated from each other along the longitudinal direction of the cleaning injection pipes 37 and 38, respectively. ing. Further, the water 44 that passes through the water supply section and the water supply main pipe 42 and passes through the water supply injection pipe 36 or the cleaning injection pipes 37 and 38 through the water supply injection opening 45 and the cleaning injection openings 46 and 47 is grease-filtered. It is injected toward 23.
[0023]
Further, a temperature detection sensor 48 as a temperature detection means is disposed above the water supply injection pipe 36 in the main body 22. The temperature detection sensor 48 detects the temperature of the exhaust air 5 flowing into the main body 22 through the inflow port 25.
[0024]
Further, in the cleaning tank 24, the cleaning stock solution and the water 44 are stored as cleaning liquid 49 to such an extent that, for example, approximately one eighth of the lower side of the grease filter 23 is immersed. This washing stock solution is mainly composed of amine soap made from tall oil prepared with oleic acid extracted from plants such as pinewood or linoleic acid, etc. It has a composition in which a surfactant, sodium hydroxide, potassium hydroxide and the like are mixed. The cleaning liquid 49 has high cleaning performance against contaminants, particularly oils and fats in the exhaust air 5 by diluting the cleaning stock solution with water 44.
[0025]
A discharge pipe 51 for discharging the cleaning liquid 49 in the cleaning tank 24 to the outside of the cleaning tank 24 is connected to the bottom of the cleaning tank 24 via a discharge valve 52.
[0026]
Further, at the end opposite to the cover body 35 in the longitudinal direction of the cleaning tank 24, when the cleaning liquid 49 stored in the cleaning tank 24 exceeds a predetermined water level in the cleaning tank 24, it overflows, that is, overflows. An overflow pipe 53 that flows out from the cleaning tank 24 is connected. The overflow pipe 53 is located above the cleaning injection pipes 37 and 38, and the downstream side of the overflow pipe 53 is connected to the downstream side of the discharge valve 52 of the discharge pipe 51.
[0027]
A float switch 54 is mounted on the same side as the speed reduction motor 34 in the longitudinal direction of the cleaning tank 24 as liquid level detecting means that floats on the cleaning liquid 49 and detects the level of the liquid level of the cleaning liquid 49. The float switch 54 is attached below the overflow pipe 53 in the main body 22 and is accommodated in the cover body 35. In addition, an ultrasonic cleaning device (not shown) is disposed at the bottom of the cleaning tank 24 as ultrasonic cleaning means for ultrasonically vibrating the cleaning liquid 49 in the cleaning tank 24.
[0028]
Further, a control box 55 which is a control panel as a control means is attached to the outside of the main body 22. This control box 55 includes a control circuit (not shown) as a control unit having a timer (not shown) as a time measuring means and a memory (not shown) as a storage means, and an operation panel (not shown) as an input means for inputting an operator's instruction. Or an alarm device (not shown) as a warning means.
[0029]
The control box 55 is electrically connected to the float switch 54, the reduction motor 34, and the temperature sensor 48 via lead wires 61, 62, and 63, respectively. Here, the lead wires 61, 62, 63 are led out to the outside of the cover body 35 through a through hole (not shown) of the cover body 35 and connected to the control box 55. Further, the control box 55 is connected to the downstream side of the water supply main 42, and a lead wire (not shown) derived from the control box 55 is inserted into the water supply main 42 to connect the electric valves 41, 43 to the control box 55. It is connected. Further, in the control box 55, a pump and a cleaning stock solution tank (not shown) are disposed.
[0030]
The control box 55 controls the pump or the electric valve 43 based on the float switch 54, supplies the cleaning stock solution or water 44 from the cleaning stock solution tank to the cleaning tank 24, and based on the temperature sensor 48. Then, the drive of the speed reduction motor 34 and the opening / closing of the electric valve 41 are controlled to clean the grease filter 23 and extinguish the flame generated in the kitchen facility 1.
[0031]
Next, the control of the fire extinguishing operation of the one embodiment will be described.
[0032]
In the gas stove 3 or the fryer 4 of the kitchen equipment 1, the oil or fat in the cooking utensil 2 is ignited during cooking to generate flames or hot air, and when this flame reaches the range hood 13, A flame or the like enters the side of the grease filter 23 from the inlet 25 of the main body 22 together with the exhaust air 5 by the intake air of the exhaust duct 15.
[0033]
At this time, since the grease filter 23 has heat resistance, it is not damaged by this flame or the like.
[0034]
Thereafter, when a flame or the like flows upward through the grease filter 23 together with the exhaust air 5, the temperature sensor 48 detects the temperature of the exhaust air 5 that has passed through, and the temperature of the exhaust air 5 is preset. At a predetermined temperature, for example, 110 ° C. to 120 ° C. or more, the control box 55 opens the electric valve 41 while rotating the grease filter 23 to the reduction motor 34 and rotates from the water supply injection port 45 of the water supply injection pipe 36. Water 44 is sprayed toward the grease filter 23, and a water film is formed on the outer peripheral surface of the grease filter 23 with the cleaning liquid 49 and the water 44.
[0035]
As a result, the water film on the outer peripheral surface of the grease filter 23 extinguishes the flame and the like and prevents the entrance of the flame and the like from the inlet 25 and prevents the transmission of the flame and the like into the exhaust duct 15.
[0036]
Next, other controls in the above embodiment will be described.
[0037]
By the operation input by the operator through the operation panel, the ultrasonic cleaning device (not shown) is driven by the control box 55 to ultrasonically vibrate the cleaning liquid 49 and the grease filter 23 is rotated by the reduction motor 34. The position of the grease filter 23 immersed in the cleaning liquid 49 is changed, and the entire grease filter 23 is cleaned with the cleaning liquid 49.
[0038]
Thereafter, the electric valve 43 is opened in the control box 55 and water 44 is sprayed to the grease filter 23 from the cleaning spray ports 46 and 47 of the cleaning spray pipes 37 and 38, so that the grease filter 23 is rinsed. At this time, the cleaning liquid 49 is increased by the water 44 and is discharged from the overflow pipe 53 to the discharge pipe 51 together with dust floating on the liquid surface of the cleaning liquid 49 or an emulsion of fats and oils, and the cleaning liquid 49 in the cleaning tank 24 is discharged. Is kept clean. When the cleaning of the grease filter 23 is completed, the rotation of the grease filter 23 and the ultrasonic cleaning device are stopped.
[0039]
The control box 55 opens the discharge valve 52 and discharges the contaminated cleaning liquid 49 from the cleaning tank 24 through the discharge pipe 51 when the cleaning liquid 49 is contaminated by use for a predetermined time. The pump in the box 55 is driven and the electric valve 43 is opened to supply new cleaning stock solution and water 44 into the cleaning tank 24 to store the cleaning solution 49. When the float switch 54 rises to a predetermined position, the pump in the control box 55 is turned off by the float switch 54, and the electric valve 43 is closed to stop the supply of the cleaning stock solution and the water 44.
[0040]
Similarly, when the cleaning liquid 49 is reduced due to volatilization or the like, the float switch 54 is closed and the pump in the control box 55 is turned on, and the electric valve 43 is opened and the cleaning stock solution and water 44 are kept at a predetermined water level. It is replenished in the washing tank 24 until it becomes.
[0041]
It is preferable that the cleaning liquid 49 overflowed from the overflow pipe 53 and the contaminated cleaning liquid 49 are separately collected in a waste liquid container or the like and separately purified to reduce the sewage treatment load.
[0042]
Next, the exhaust air purifying operation of the embodiment will be described.
[0043]
Steam or smoke containing oil or fat is generated by cooking, and the steam or smoke is exhausted into the range hood 13 as exhaust air 5 by driving a fan or blower in the exhaust duct 15. Then, it enters the side of the grease filter 23 from the inlet 25 of the main body 22 of the exhaust purification device 21.
[0044]
At this time, the exhaust air 5 flows through the filter body 32 of the grease filter 23, so that turbulent flow such as contraction or conversion of the flow direction is repeated, and fine dust, oil and fat in the exhaust air 5 are repeated. Minute or pollutants such as tar-like substances are captured by the filter body 32 and removed from the exhaust air 5.
[0045]
At the same time, since the cleaning liquid 49 is attached to the filter body 32 by being immersed in the cleaning liquid 49, the water-soluble contaminants in the exhaust air 5 flow into the cleaning liquid 49 when flowing through the filter body 32. And dissolved from the exhaust air 5.
[0046]
Further, when the exhaust air 5 is discharged above the grease filter 23, the exhaust air 5 flows again through the grease filter 23, so that the exhaust air 5 causes the pollutant to pass through the filter body 32 of the grease filter 23. Removed repeatedly.
[0047]
The exhaust air 5 from which the contaminants have been removed becomes purified air 64 and flows out from the outlet 26 of the main body 22 to the upper side of the main body 22 and is exhausted to the outside through the exhaust duct 15.
[0048]
As described above, according to the above-described embodiment, the grease filter 23 is disposed in the main body 22 so as to close the inlet 25 of the main body 22, and the water supply injection port 45 of the water supply injection pipe 36 is connected to the grease. When the temperature of the exhaust air 5 formed by facing the filter 23 and detected by the temperature sensor 48 is equal to or higher than a preset temperature, the control motor 55 causes the reduction motor 34 to rotate the grease filter 23. While spraying water 44 to the water supply injection port 45 of the water supply injection pipe 36 toward the side and upper part of the grease filter 23, a water film is formed on the outer peripheral surface of the grease filter 23 by the cleaning liquid 49 and the water 44. . As a result, a water film can be reliably formed on the outer peripheral surface of the grease filter 23 by the synergistic effect of the rotation of the grease filter 23 and the injection of water 44 from the water supply injection port 45 of the water supply injection pipe 36. Since the transmission of flames and the like can be reliably prevented by the water film formed on the outer peripheral surface of the grease filter 23 without being provided in the exhaust filter, the configuration of the exhaust gas purification device 21 can be simplified, and the control of the exhaust gas purification device 21 is simplified. Can be.
[0049]
Further, since the upper part of the grease filter 23 is a path through which the exhaust air 5 flows, by injecting water 44 from the upper part of the grease filter 23 by the feed water injection pipe 36, the exhaust duct 15 such as a flame is more reliably obtained. Inward transmission can be prevented.
[0050]
Further, the cleaning liquid 49 is stored in the cleaning tank 24, and the lower part of the grease filter 23 is immersed in the cleaning liquid 49 to clean the contaminants in the exhaust air 5 captured by the filter body 32 of the grease filter 23. As a result, by rotating the grease filter 23 to the reduction motor 34, the cleaning position of the grease filter 23 can be changed to clean the grease filter 23 efficiently and substantially automatically, and the cleaning liquid 49 can be used efficiently. it can.
[0051]
Then, by spraying water 44 from the cleaning injection ports 46 and 47 of the cleaning injection pipes 37 and 38 onto the grease filter 23 and rinsing, the grease filter 23 can be more reliably cleaned. Since contaminants and the like overflow from the overflow pipe 53 together with the cleaning liquid 49 and are discharged from the cleaning tank 24, the cleaning liquid 49 in the cleaning tank 24 can be maintained in a clean state.
[0052]
Further, since the exhaust air 5 flows through the grease filter 23 a plurality of times such as at the side and upper part, contaminants in the exhaust air 5 can be more reliably removed. As a result, the temperature detection sensor 48 is not contaminated with pollutants and the like, so that malfunction of the temperature detection sensor 48 can be prevented and each part of the exhaust gas purification device 21 is removed after the use of the kitchen equipment 1. Therefore, maintenance management can be performed more easily because there is no need to clean the exhaust duct 15 or the inside of the exhaust duct 15.
[0053]
Furthermore, the filter body 32 is formed by laminating metal fibers into a non-flammable, corrosion-resistant and breathable nonwoven fabric, and a predetermined nickel porous body, so that the kitchen equipment is subjected to heat load. It can be used even in atmospheres such as 1, and even if the cleaning liquid 49 or contaminants in the exhaust air 5 adheres to the filter body 32, corrosion or rust does not occur. 5 can be purified.
[0054]
In the above-described embodiment, the exhaust gas purification device 21 may be any exhaust gas such as exhaust air generated during waste disposal such as incineration of waste, or exhaust air generated from a firing furnace such as cement clinker or wood heating processing. The wind can also be targeted.
[0055]
In addition, the cleaning liquid 49 has a high detergency for oils and fats, has antibacterial properties, is neutral, does not contain preservatives, and is phosphorus-free, non-colored, non-flammable, and other than the above composition It may be.
[0056]
Further, the grease filter 23 is cleaned by rotating for a predetermined time every time a predetermined time elapses with a program input in advance to the control box 55 by an operator or a predetermined program preset in the control box 55. You may perform what is called intermittent operation.
[0057]
A plurality of water supply injection pipes 36 may be provided above the grease filter 23. In this case, a water film can be more reliably formed on the outer peripheral surface of the grease filter 23 when a flame or the like enters the main body 22.
[0058]
Further, the filter body 32 may be only a predetermined metal fiber or a predetermined nickel porous body, for example.
[0059]
Further, the water supply injection pipe 36 may be connected to a fire extinguishing liquid tank (not shown), and the fire extinguishing liquid may be injected toward the grease filter 23 instead of the water 44.
[0060]
Then, the water supply injection pipe 36 may be connected to a tank or the like of a smoke extinguishing liquid (not shown) and the smoke extinguishing liquid may be ejected toward the grease filter 23 instead of the water 44. As this smoke-removing solution, for example, the smoke-removing solution described in JP-B-54-28680 (Patent No. 995090) is used.
[0061]
In addition, a scattering prevention filter (not shown) may be attached to the exhaust inlet 14 of the exhaust duct 15 so that the water 44 and the cleaning liquid 49 are not scattered in the exhaust duct 15 when a relatively large load is applied to the exhaust duct 15. Good.
[0062]
Further, in order to improve the fire extinguishing performance (smoke evacuating performance) of the exhaust purification device 21, a jetting means such as a nozzle (not shown) is separately provided in the exhaust duct 15, and water 44 or cleaning liquid 49 (smoke proofing liquid) is provided from this jetting means. ) Or the like may be injected to assist in extinguishing (smoke).
[0063]
【The invention's effect】
According to the exhaust purification device of the first aspect, the substantially cylindrical removal means having air permeability is rotatably disposed in the main body so as to close at least one of the inflow port and the outflow port of the main body. , The cleaning liquid in which the lower part of this removing means is immersed is stored in a cleaning tank, An injection means for injecting water or a fire extinguishing liquid toward the removal means is provided on the removal means. Upper outer peripheral surface When the exhaust air temperature sensed by the temperature sensing means is equal to or higher than a predetermined temperature, the control means rotates the removal means by driving the driving means while the ejection means is rotating. By driving, water or a fire extinguishing liquid is sprayed to the rotating removing means, and a liquid film is formed on the outer peripheral surface of the removing means with the water or the fire extinguishing liquid and the cleaning liquid stored in the cleaning tank. As a result, the transmission can be reliably prevented by the liquid film formed on the outer peripheral surface of the removing means without providing a fireproof damper or the like, for example, so that the configuration can be simplified.
[0064]
According to the exhaust purification device of the second aspect, the substantially cylindrical removal means having air permeability is rotatably disposed in the main body so as to close at least one of the inflow port and the outflow port of the main body. , The cleaning liquid in which the lower part of this removing means is immersed is stored in a cleaning tank, The removing means is a jetting means for jetting the smoke-dissipating liquid toward the removing means. Upper outer peripheral surface of When the temperature of the exhaust air sensed by the temperature sensing means is equal to or higher than a predetermined temperature, the control means rotates the removal means by driving the driving means while the ejection means is rotating. The smoke removing liquid is jetted to the rotating removing means by driving, and a liquid film is formed on the outer peripheral surface of the removing means by the smoke eliminating liquid and the cleaning liquid stored in the cleaning tank. As a result, flame and smoke transmission can be reliably prevented by the liquid film formed on the outer peripheral surface of the removing means without providing a fire damper or the like, for example, so that the configuration can be simplified.
[0065]
According to the exhaust emission control device of the third aspect, by providing a plurality of injection means facing the removal means, the injection means water, Fire extinguishing liquid Or smoke-removing liquid The liquid film can be more reliably formed on the removing means by spraying the removing means on the removing means from a plurality of locations.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing an embodiment of an exhaust purification device of the present invention.
FIG. 2 is a side sectional view showing the exhaust emission control device.
[Explanation of symbols]
21 Exhaust gas purification device
22 body
23 Grease filter as removal means
24 Washing tank
25 Inlet
26 Outlet
34 Deceleration motor as drive means
36 Water supply injection pipe as injection means
48 Temperature sensing sensor as temperature sensing means
55 Control box as control means

Claims (3)

A main body provided with an inlet through which exhaust air flows and an outlet through which exhaust air flows;
It is rotatably arranged in the main body so as to block at least one of the inlet and the outlet, and exhaust air flowing into the main body from the inlet is allowed to flow through the exhaust air. A substantially cylindrical removal means having air permeability that captures and removes contaminants and causes the exhaust air from which the contaminants have been removed to flow out of the outlet;
Driving means for rotating the removing means along the circumferential direction of the removing means;
A cleaning tank in which a cleaning liquid in which a lower part of the removing means is immersed is stored;
An injection unit provided opposite to the outer peripheral surface on the upper side of the removing unit and jetting water or a fire extinguishing liquid toward the removing unit;
Temperature sensing means for sensing the temperature of the exhaust air flowing into the main body from the inlet;
When the temperature of the exhaust air sensed by the temperature sensing means is equal to or higher than a predetermined temperature, the removing means is rotated by driving the driving means so as to form a liquid film on the outer peripheral surface of the removing means. And a control means for injecting water or a fire extinguishing liquid by driving the injection means toward the rotating removal means. A main body provided with an inlet through which exhaust air flows and an outlet through which exhaust air flows;
It is rotatably arranged in the main body so as to block at least one of the inlet and the outlet, and exhaust air flowing into the main body from the inlet is allowed to flow through the exhaust air. A substantially cylindrical removal means having air permeability that captures and removes contaminants and causes the exhaust air from which the contaminants have been removed to flow out of the outlet;
Driving means for rotating the removing means along the circumferential direction of the removing means;
A cleaning tank in which a cleaning liquid in which a lower part of the removing means is immersed is stored;
Injecting means that is provided opposite to the outer peripheral surface on the upper side of the removing means and injects a smoke-removing liquid toward the removing means,
Temperature sensing means for sensing the temperature of the exhaust air flowing into the main body from the inlet;
When the temperature of the exhaust air sensed by the temperature sensing means is equal to or higher than a predetermined temperature, the removing means is rotated by driving the driving means so as to form a liquid film on the outer peripheral surface of the removing means. An exhaust emission control device comprising: control means for injecting smoke-dissipating liquid toward the rotating removal means while driving the injection means. The exhaust emission control device according to claim 1 or 2, wherein a plurality of injection means are provided to face the removal means.

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