JP2011141064A - Oily smoke purifying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device free from degradation of deodorizing performance, wherein oil is prevented from adhering to an absorbent or the like that are included in a deodorizer, with regard to an oily smoke purifying device that purifies the oily smoke or the like generated during cooking. <P>SOLUTION: The oily smoke purifying device 1 includes: an air suction opening 3 that sucks air containing oily smoke and odor; a primary air flow path 4; a secondary air flow path 5; a damper 6 that closes either the primary air flow path 4 or the secondary air flow path 5; an air blower 7 that circulates air; and an air discharge opening 8. An oily smoke remover 9 is disposed in the primary air flow path 4, and the deodorizer 10 is disposed in the secondary air flow path 5, in which a collision plate 11 as an oil adhesion suppressor is installed. During cooking, the damper 6 closes the secondary air flow path 5 so that the oily smoke remover 9 removes oily smoke. After completion of cooking, the damper 6 closes the primary air flow path 4 so that the deodorizer 10 removes the remaining odor. At that time, the oil adhesion suppressor for the deodorizer 10 prevents oil from adhering to the absorbent or the like that are included in the deodorizer 10, whereby deodorizing performance is not degraded. Accordingly, maintenance work for a deodorant filter is reduced, thereby lightening the work load of users. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to an oil smoke purification device for purifying oil smoke generated during cooking in a kitchen or the like.

  Conventionally, various types of range hoods installed in kitchens have been proposed. Among these, there is a device (oil smoke purification device) that not only exhausts oil smoke and the like to the outside but also collects oil with high efficiency and removes unpleasant odors. Among these, what has a feature in the exhaust air path has been proposed in which the air path is switched by a damper in accordance with the operating state of the apparatus (for example, see Patent Document 1).

  Hereinafter, the oil smoke purification apparatus will be described with reference to FIG.

  The conventional oil and smoke purification apparatus 101 includes an air inlet 103 toward the cooking device 102, an air outlet 104 outdoors, and a blower 105 in the air passage. The smoke exhaust duct 106 includes a storage unit 107 that temporarily stores oil and odor, and the bypass passage 108 includes a purification unit 109 that purifies oil. The storage unit 107 includes an adsorbent obtained by forming activated carbon into a honeycomb shape and a heater disposed in the vicinity of the upstream side. The purification unit 109 includes a catalyst formed in a honeycomb shape and a heater disposed in the vicinity of the upstream side. A damper 110 that closes either the bypass passage 108 or the smoke exhaust duct 106 is provided at the inlet of the bypass passage 108. A solid line arrow in the figure indicates the flow of air, and a broken line and a broken line arrow indicate how the damper 110 is movable.

  During cooking, the damper 110 is closed by the damper 110 and the smoke exhaust duct 106 is opened, and then the blower 105 is driven to suck the oil smoke generated by the cooking device 102. At this time, in the storage unit 107, the oil is adhered and separated, and the odor is removed by adsorption. After cooking, after the smoke exhaust duct 106 is closed by the damper 110 and the bypass passage 108 is opened, the adsorbent is heated by the heater in the storage unit 107 to release the adhering and adsorbed components, and this is purified. It is introduced into 109 with a small air volume, purified and discharged.

JP-A-2-25648

  In such a conventional oil smoke purification device, an adsorbent such as activated carbon is provided as a deodorizing means, but since this is an air passage configuration exposed to oil smoke, oil adheres to the adsorbent and the deodorizing performance is improved. descend. Even if an oil smoke removing means having a high collection rate is provided upstream of the adsorbent, the adhesion of oil cannot be made zero, and thus there is a problem that performance deterioration cannot be avoided.

  Therefore, the present invention solves the above-described conventional problems, and an object of the present invention is to provide an oil and smoke purification device in which oil does not adhere to an adsorbent or the like constituting deodorizing means and deodorization performance does not deteriorate.

  In order to achieve this object, the oil and smoke purification apparatus of the present invention includes an air inlet that sucks oil smoke and odor generated by cooking with a cooking utensil, a main air passage that communicates with the air inlet, and the main air passage. A sub air passage connected to a part of the air passage, a damper that closes one of the main air passage and the sub air passage, and a blower that distributes air to the main air passage and the sub air passage; An exhaust port communicating with the main air passage and the sub air passage; oil smoke removing means disposed in the main air passage; deodorizing means disposed in the sub air passage; and oil adhering to the deodorizing means. This is characterized in that an oil adhesion suppressing means for suppressing the above is provided, thereby achieving the intended purpose.

  The oil smoke purification apparatus of the present invention includes an intake port for sucking oil smoke and odor generated by cooking with a cooking device, a main air passage communicating with the intake air, and a side air communicating with a part of the main air passage. A damper that closes one of the main air passage and the sub air passage, a blower that distributes air to the main air passage and the sub air passage, and the main air passage and the sub air passage. An exhaust port communicating therewith, an oil smoke removing means is disposed in the main air passage, a deodorizing means is disposed in the sub air passage, and an oil adhesion suppressing means for suppressing oil from adhering to the deodorizing means is provided. Made the configuration.

  Of the odors generated during cooking, it is considered that the ones that people feel uncomfortable are not the odors during cooking, but the residual odors generated from the adhered oil after cooking. In the oil smoke purification apparatus of the present invention, during cooking, the damper closes the auxiliary air passage, and the oil smoke is removed by the oil smoke removing means arranged in the main air passage. After cooking, the damper closes the main air passage and removes residual odor by deodorizing means arranged in the sub air passage.

  In that case, by providing the oil adhesion suppressing means for suppressing the oil adhesion to the deodorizing means, the oil does not adhere to the adsorbent or the like constituting the deodorizing means, and the deodorizing performance does not deteriorate. Therefore, the maintenance and replacement span of the deodorizing filter can be lengthened, and the labor of the user can be reduced.

The block diagram which shows the cross section of the oil smoke purification apparatus of Embodiment 1 of this invention Graph showing the effect of oil adhesion on activated carbon The block diagram which shows the cross section of the oil smoke purification apparatus of Embodiment 2 of this invention The block diagram which shows the detail of the subwind path of the oil smoke purification apparatus of Embodiment 2 of this invention The block diagram which shows the cross section of the oil smoke purification apparatus of Embodiment 3 of this invention The block diagram which shows the detail of the subwind path of the oil smoke purification apparatus of Embodiment 3 of this invention The block diagram which shows the cross section of the conventional oil smoke purification apparatus

  The invention according to claim 1 of the present invention includes an air inlet that sucks in smoke and odor generated by cooking with a cooking device, a main air passage communicating with the air inlet, and a part of the main air passage. An auxiliary air passage communicating therewith, a damper that closes one of the main air passage and the auxiliary air passage, a blower that distributes air to the main air passage and the auxiliary air passage, the main air passage, and the An oil outlet that communicates with the auxiliary air passage, and has an oil smoke removing means disposed in the main air passage and a deodorizing means disposed in the auxiliary air passage to suppress oil from adhering to the deodorizing means. An oil smoke purification apparatus characterized in that means is provided.

  Of the odors generated during cooking, it is considered that the ones that people feel uncomfortable are not the odors during cooking, but the residual odors generated from the adhered oil after cooking. In the oil smoke purification apparatus of the present invention, during cooking, the damper closes the auxiliary air passage, and the oil smoke is removed by the oil smoke removing means arranged in the main air passage. After cooking, the damper closes the main air passage and removes residual odor by deodorizing means arranged in the sub air passage.

  In that case, by providing the oil adhesion suppressing means for suppressing the oil adhesion to the deodorizing means, the oil does not adhere to the adsorbent or the like constituting the deodorizing means, and the deodorizing performance can be prevented from being lowered. Therefore, the maintenance and replacement span of the deodorizing filter can be lengthened, and the labor of the user can be reduced.

  The invention according to claim 2 of the present invention is the oil smoke purification apparatus according to claim 1, characterized in that an inlet of the auxiliary air passage is provided downstream of the oil smoke removing means arranged in the main air passage. is there.

  By providing the inlet of the auxiliary air passage downstream of the oil smoke removing means, air containing residual oil in the air introduced into the auxiliary air passage after cooking flows into the auxiliary air passage after passing through the oil smoke removing means. Therefore, the effect of the oil adhesion suppressing means can be further enhanced. Moreover, the oil smoke removing means that collects the oil smoke can be a source of odor. By providing the inlet of the auxiliary air passage on the downstream side of the oil smoke removing means, the odor generated from the oil smoke removing means can be introduced into the auxiliary air passage, and the odor can be removed by the deodorizing means.

  The invention according to claim 3 of the present invention is the oil smoke purification apparatus according to claim 1 or 2, wherein a sub-intake port is provided, and the sub-intake port communicates with the sub-air passage.

  By sucking not only from the air intake port but also from the sub air intake port, the odor diffused in the room can be quickly sucked, and it can be prevented from becoming unpleasant due to the residual odor after cooking. Further, by providing the auxiliary air inlet, it is possible to perform deodorizing operation during cooking.

  According to a fourth aspect of the present invention, there is provided the oil smoke purification apparatus according to the third aspect, wherein the auxiliary intake port is opened in a direction different from the intake port.

  When the oil smoke purification apparatus of the present invention is applied to a face-to-face kitchen, the opposite direction of the intake port, that is, the back of the apparatus faces the living room. For example, by providing the auxiliary air inlet on the back of the apparatus, it is possible to effectively suck the odor diffused in the living room and prevent it from becoming unpleasant due to the residual odor after cooking.

  The invention according to claim 5 of the present invention is characterized in that a collision means for colliding the air flow is provided in the vicinity of the inlet communicating with the main air passage of the auxiliary air passage as the oil adhesion suppressing means. The oil smoke purification device according to 1 to 4.

  Thereby, the inflow of oil to the auxiliary air passage can be prevented. When the inlet of the secondary air passage is on the downstream side of the oil smoke removal means, even if the oil collected by the oil smoke removal means re-scatters and flows into the secondary air path, the collision means prevents this. Can do. Therefore, oil does not adhere to the adsorbent or the like constituting the deodorizing means, and the deodorization performance can be prevented from deteriorating.

  The invention according to claim 6 of the present invention is characterized in that the impingement means is an impingement plate inclined with respect to the inlet communicating with the main air passage of the auxiliary air passage. Device.

  Thereby, when the air flowing into the auxiliary air passage collides with the collision plate, the oil adheres to the collision plate, thereby preventing the oil from flowing into the auxiliary air passage. Therefore, oil does not adhere to the adsorbent or the like constituting the deodorizing means, and the deodorization performance can be prevented from deteriorating.

  The invention according to claim 7 of the present invention is the oil smoke purification apparatus according to claim 5, wherein the collision means is a punching metal.

  Thereby, when the air flowing into the auxiliary air passage collides with the punching metal, the oil adheres to the punching metal, thereby preventing the oil from flowing into the auxiliary air passage. Therefore, oil does not adhere to the adsorbent or the like constituting the deodorizing means, and the deodorization performance can be prevented from deteriorating. Moreover, since punching metal can be easily obtained, a collision means that is inexpensive and easy to manufacture can be obtained.

  The invention according to claim 8 of the present invention is the oil and smoke purification apparatus according to claim 5, wherein the collision means is a grease filter.

  By collecting and removing oil with a grease filter provided near the inlet of the auxiliary air passage, it is possible to prevent the oil from flowing into the auxiliary air passage, so that oil is attached to the adsorbent that constitutes the deodorizing means. Decrease in deodorizing performance can be prevented without wearing.

  According to a ninth aspect of the present invention, as an oil adhesion suppressing means, the whole or part of the auxiliary air passage has a substantially cylindrical shape, and the substantially cylindrical portion communicates with the main air passage of the auxiliary air passage. 3. The oil smoke purification device according to claim 1, wherein the inlet is opened in a tangential direction of a substantially cylindrical outer periphery, and a gap is provided between an inner wall of the auxiliary air passage and a deodorizing means. Device.

  When air flows into the auxiliary air passage, a swirling flow is generated in the cylindrical portion. At this time, if oil particles are contained in the air, centrifugal force is applied to these particles swirling with the air, so that the particles move toward the outer peripheral wall of the cylinder, and finally between the inner wall of the auxiliary air passage and the deodorizing means. Fall into the gap.

  Thus, by centrifuging the oil particles from the air, it is possible to prevent the oil from adhering to the deodorizing means and to prevent the deodorizing performance from being lowered.

  According to a tenth aspect of the present invention, an auxiliary air inlet is provided, the auxiliary air inlet communicates with the auxiliary air passage, and an opening communicating with the auxiliary air inlet is formed in a cylindrical portion of the auxiliary air passage. The oil smoke purification apparatus according to claim 9, wherein:

  By sucking not only from the air intake port but also from the sub air intake port, the odor diffused in the room can be quickly sucked, and it can be prevented from becoming unpleasant due to the residual odor after cooking.

  In addition, by providing an opening communicating with the auxiliary air inlet in the cylindrical portion of the auxiliary air passage, the air flowing from the auxiliary air inlet forms a swirling flow in the cylindrical portion. At this time, since centrifugal force is applied to particles such as dust contained in the air, the particles move toward the outer peripheral wall of the cylinder, and finally fall into a gap between the inner wall of the auxiliary air passage and the deodorizing means.

  Thus, by centrifuging dust from the air, it is possible to prevent dust from adhering to the deodorizing means and to prevent clogging of the deodorizing means.

  According to an eleventh aspect of the present invention, the inlet communicating with the main air passage of the auxiliary air passage and the opening communicating with the auxiliary air inlet are provided symmetrically about the axis of the substantially cylindrical auxiliary air passage. The oil smoke purification apparatus according to claim 10, wherein:

  As a result, the air flowing from the main air passage into the sub air passage and the air flowing from the sub air inlet into the sub air passage form a swirling flow in the same direction, so that the airflow is not disturbed and the pressure loss Can be reduced.

  According to a twelfth aspect of the present invention, as the oil adhesion suppressing means, the whole or part of the auxiliary air passage has a substantially cylindrical shape, and communicates with the main air passage of the auxiliary air passage on the cylindrical end surface or the cylindrical portion. 5. An inlet for carrying out the operation, a blade row is arranged between the inlet and the deodorizing means, and a gap is provided between the inner wall of the auxiliary air passage and the deodorizing means. It is an oil smoke purification apparatus.

  When air flows into the auxiliary air passage, a swirling flow is generated in the blade row portion disposed between the inlet of the auxiliary air passage and the deodorizing means. At this time, if oil particles or the like are contained in the air, centrifugal force is applied to these particles swirling with the air, so that the particles move toward the outer peripheral wall of the cylinder, and finally, the inner wall of the auxiliary air passage and the deodorizing means Fall into the gap between. Thus, by centrifuging oil particles and the like from the air, it is possible to prevent oil and the like from adhering to the deodorizing means, and to prevent a decrease in deodorizing performance.

  A thirteenth aspect of the present invention is the oil and smoke purification apparatus according to any one of the ninth to twelfth aspects, wherein a detachable dust box is provided at the bottom of the auxiliary air passage.

  As a result, particles such as oil and dust that have moved toward the outer peripheral wall of the cylinder by the swirling flow generated in the auxiliary air passage can be collected in the dust box, and the accumulated dust can be easily discarded, thereby improving maintainability.

  The invention according to claim 14 of the present invention is the oil smoke purification apparatus according to any one of claims 9 to 13, wherein the inner wall surface of the auxiliary air passage is subjected to an antifouling process.

  This prevents particles such as oil and dust that have moved toward the outer peripheral wall of the cylinder due to the swirling flow generated in the side air passage from adhering to the inner wall of the side air passage, and hinders centrifugal separation of the particles due to the swirling flow. Can be prevented.

  The invention according to claim 15 of the present invention is the oil smoke purification apparatus according to any one of claims 1 to 14, wherein the exhaust port is located indoors.

  As a result, it can be used as a circulating range hood, and the degree of freedom in the kitchen layout is improved.

  The invention according to claim 16 of the present invention is interlocked with the operation of the cooking device, the damper closes the auxiliary air passage during the operation of the cooking device, and interlocks with the operation when the operation of the cooking device is completed. The damper according to any one of claims 1 to 15, wherein the damper closes the main air passage.

  Thereby, it is possible to prevent the deodorizing means from being exposed to oil smoke during the operation of the cooking device. Moreover, the deodorizing function can be operated reliably.

  According to the seventeenth aspect of the present invention, when the main air passage is closed, a display unit that indicates that the deodorizing operation is being performed, and whether the damper closes the main air passage or the sub air passage. The oil smoke purification apparatus according to any one of claims 1 to 16, further comprising a changeover switch that is arbitrarily switched.

  When the auxiliary air inlet is not provided, the oil and smoke purification apparatus of the present invention cannot perform cooking while the main air passage is closed, that is, during the deodorizing operation. Misuse can be prevented by installing a display panel in front of the device so that the user can check the operating state. Moreover, when it is desired to continue cooking, the deodorizing operation can be interrupted by a changeover switch for switching the air path to be arbitrarily closed.

  The invention according to claim 18 of the present invention is the oil and smoke purification apparatus according to any one of claims 1 to 17, wherein the deodorizing means is made of activated carbon.

  As a result, the deodorizing ability is high and it becomes an inexpensive deodorizing means.

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

(Embodiment 1)
FIG. 1 is a configuration diagram showing a cross section of the oil smoke purification apparatus according to Embodiment 1 of the present invention.

  The configuration of the oil smoke purification apparatus according to Embodiment 1 will be described.

  The oil smoke purification apparatus 1 is directed to the cooking device 2 and is connected to an intake port 3 for sucking oil smoke and odor generated during cooking, a main air passage 4 communicating with the intake air port 3, and a part of the main air passage 4. The auxiliary air passage 5, the damper 6 that closes one of the main air passage 4 and the auxiliary air passage 5, the air blowing means 7 that distributes air to the main air passage 4 and the auxiliary air passage 5, and the main air passage 4. And an exhaust port 8 communicating with the auxiliary air passage 5, oil smoke removing means 9 is arranged in the main air passage 4, and deodorizing means 10 is arranged in the auxiliary air passage 5, and oil adheres to the deodorizing means 10. As an oil adhesion suppressing means for suppressing, a collision plate 11 inclined with respect to the inlet communicating with the main air passage 4 of the auxiliary air passage 5 is provided in the auxiliary air passage 5.

  An inlet to the sub air passage 5 connected to the main air passage 4 is provided on the downstream side of the oil smoke removing means 9.

  In addition to the air inlet 3, a sub air inlet 12 communicating with the sub air passage 5 is provided on the back of the apparatus.

  Further, the oil smoke removing means 9 is composed of laminated punching metal.

  The deodorizing means 10 was made of activated carbon formed into a honeycomb shape.

  Further, it is assumed that the oil smoke purification apparatus 1 is applied to a face-to-face kitchen, and the exhaust port 8 is opened toward the living room.

  In addition, the solid line arrow in a figure shows the flow of air, and a broken line and a broken line arrow show the mode of operation | movement of the damper 6. FIG.

  The operation of the oil smoke purification apparatus of the first embodiment will be described.

  When the user operates the cooking device 2 for cooking, the damper 6 closes the auxiliary air passage 5 and opens the main air passage 4 in conjunction therewith. At the same time, the air blowing means 7 is driven to suck the oil smoke generated by the cooking device 2. The oily smoke is removed by the oily smoke removing means 9 disposed in the main air passage 4, and the purified air is discharged from the exhaust port 8. During the operation of the cooking device 2, the auxiliary air passage 5 is kept closed.

  When the user finishes cooking and completes the operation of the cooking device 2, the damper 6 closes the main air passage 4 and opens the sub air passage 5 in conjunction with the operation (the damper 6 is at the position indicated by the broken line in the figure). Then, after cooking, the air containing the residual odor is introduced into the auxiliary air passage 5 and collides with the collision plate 11 provided in the auxiliary air passage 5 to remove the oil, and then the deodorizing means 10 disposed in the auxiliary air passage 5. Thus, the odor is removed and the purified air is discharged from the exhaust port 8.

  In order to enhance the effect of suppressing oil adhesion to the deodorizing means 10, the collision plate 11 is projected from the main air passage 4 side toward the inlet side of the sub air passage 5. It is preferable to provide it so as to cover all the inlets. In the first embodiment, the number of the collision plates 11 is three. However, the number of the collision plates 11 is not limited to this, and is allowed when air flows from the main air passage 4 to the sub air passage 5. The inclination angle and the number of the collision plates 11 may be determined in consideration of the pressure loss.

  At this time, the odor diffused into the living room from the auxiliary air inlet 12 on the back of the apparatus is sucked into the auxiliary air passage 5 and deodorized. If a shutter that can be opened and closed is installed in the auxiliary air inlet 12, it is possible to perform a deodorizing operation only after cooking.

  The effect of the oil smoke purification apparatus of Embodiment 1 is demonstrated.

  Of the odors generated during cooking, it is considered that the ones that people feel uncomfortable are not the odors during cooking, but the residual odors generated from the adhered oil after cooking. By setting it as the air path structure and operation | movement of the oil smoke purification apparatus 1 of this invention, oil does not adhere to the activated carbon which comprises the deodorizing means 10, and the fall of deodorizing performance can be prevented. Therefore, the maintenance and replacement span of the deodorizing filter can be lengthened, and the labor of the user can be reduced.

  The effect on deodorization performance when oil adhered to activated carbon was confirmed by experiments. The result is shown in FIG.

  The experiment was performed as follows.

  As the activated carbon, a new granular activated carbon (new activated carbon) and an oil-attached product (oil-attached activated carbon) were prepared. Assuming that the oil to be deposited is generated by cooking, beef tallow and lard were mixed and heat-treated to be used as simulated oil. 139 mg of this simulated oil was attached to 1 g of activated carbon to obtain oil-attached activated carbon. Pentanal was selected as a simulation gas for residual odor after cooking.

  A 5 L container was charged with 1 g of new activated carbon or oil-attached activated carbon and pentanal diluted with air (humidity 0%), and the change over time in the concentration of pentanal was observed. The concentration of pentanal was determined using a gas chromatograph.

  From FIG. 2, the oil-attached activated carbon has a slower adsorption rate than the new activated carbon, and the concentration at which equilibrium is high. From this result, it was confirmed that the deodorization performance of the activated carbon deteriorated due to the adhesion of oil. Therefore, it has been confirmed that it is important to maintain the deodorizing performance that the activated carbon or the like constituting the deodorizing means 10 in the oil smoke purification apparatus 1 is not exposed to the oil smoke.

  In the oil smoke purification device 1, an inlet communicating with the main air passage 4 of the auxiliary air passage 5 is provided on the downstream side of the oil smoke removing means 9 disposed in the main air passage 4. Thereby, since the air containing residual oil in the air introduced into the auxiliary air passage 5 after cooking flows into the auxiliary air passage 5 after passing through the oil smoke removing means 9, the effect of the oil adhesion suppressing means is further improved. Can be increased. Further, since the oil smoke removing means 9 that has collected the oil smoke can be a source of odor, the oil smoke removing means 9 is provided by providing an inlet communicating with the main air passage 4 of the auxiliary air passage 5 on the downstream side of the oil smoke removing means 9. The odor generated from the odor can be introduced into the auxiliary air passage 5 and the odor can be removed by the deodorizing means 10.

  Moreover, in the oil smoke purification apparatus 1, by sucking not only from the air inlet 3 but also from the auxiliary air inlet 12, the odor diffused in the living room can be quickly sucked and it is prevented from becoming unpleasant due to the residual odor after cooking. be able to. In addition, by providing the auxiliary air inlet 12, deodorizing operation can be performed even during cooking.

  Moreover, since the oil smoke during cooking and the residual odor after cooking can be purified and exhausted indoors, the oil smoke purification device 1 can be used as a circulation type range hood, and the degree of freedom of the kitchen layout is improved.

  Moreover, since the oil smoke purification apparatus 1 and the heating cooking utensil 2 are interlocked, it is possible to prevent the deodorizing means 10 from being exposed to the oil smoke during the operation of the heating cooking utensil 2. Moreover, the deodorizing function can be operated reliably.

  In Embodiment 1, activated carbon formed in a honeycomb shape is used as the deodorizing means 10, so that the deodorizing means 10 has a high deodorizing ability and can be configured at low cost. However, it is not limited to activated carbon, and other adsorbents may be used as long as odor can be removed with a necessary deodorization rate.

  A display unit for indicating that the deodorizing operation is being performed when the main air passage 4 is closed; and a changeover switch for arbitrarily switching whether the damper 6 closes the main air passage 4 or the sub air passage 5; May be provided. The oil smoke purification apparatus 1 cannot cook while the main air passage 4 is closed. Misuse can be prevented by installing a display panel in front of the device so that the user can check the operating state. Moreover, when it is desired to continue cooking, the deodorizing operation can be interrupted by a changeover switch for switching the air path to be arbitrarily closed.

  In the first embodiment, a collision plate 11 that is inclined with respect to the inlet communicating with the main air passage 4 of the auxiliary air passage 5 is provided as an oil adhesion suppressing portion that suppresses oil from adhering to the deodorizing means 10. However, instead of the collision plate 11, a punching metal may be provided in the vicinity of the entrance.

  Thereby, when the air flowing into the auxiliary air passage 5 collides with the punching metal, the oil adheres to the punching metal, whereby the inflow of oil into the auxiliary air passage 5 can be prevented. Therefore, oil does not adhere to the adsorbent or the like constituting the deodorizing means 10 and the deodorizing performance can be prevented from being lowered. Moreover, since punching metal can be easily obtained, a collision means that is inexpensive and easy to manufacture can be obtained.

  In the first embodiment, a collision plate 11 that is inclined with respect to the inlet communicating with the main air passage 4 of the auxiliary air passage 5 is provided as an oil adhesion suppressing portion that suppresses oil from adhering to the deodorizing means 10. However, instead of the collision plate 11, a grease filter may be provided in the vicinity of the inlet.

  By collecting and removing oil with a grease filter provided in the vicinity of the inlet of the auxiliary air passage 5, it is possible to prevent the oil from flowing into the auxiliary air passage 5. Oil does not adhere and can prevent the deodorizing performance from deteriorating.

  In the first embodiment, the damper 6 is a switching damper made of a plate member as shown in FIG. 1, but a louver damper may be provided in each of the main air passage 4 and the sub air passage 5. The shape of the damper 6 is not limited to this.

  In the first embodiment, the oil-smoke removing means 9 is formed of a punched metal. However, a filter made of nonwoven fabric, an electrostatic precipitator, or the like may be used as long as the oil-smoke can be removed at a necessary collection rate.

(Embodiment 2)
FIG. 3 is a configuration diagram showing a cross section of the oil smoke purification device according to the second embodiment of the present invention, and FIG. 4 is a configuration diagram showing details of the auxiliary air passage of the oil smoke purification device according to the second embodiment of the present invention.

  3 and 4, the same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The configuration of the oil smoke purification apparatus 1 according to the second embodiment will be described.

  The auxiliary air passage 13 has a cylindrical shape, and the inlet 17 of the auxiliary air passage 13 communicating with the main air passage 4 is provided in the cylindrical portion and opens in a tangential direction of the outer periphery of the cylinder. Further, a gap was provided between the inner wall of the auxiliary air passage 13 and the deodorizing means 14. Although not shown, the deodorizing means 14 may be fixed by providing a collar and screwing it to the bottom of the auxiliary air passage 13.

  In addition to the intake port 3, the auxiliary intake port 15 communicating with the auxiliary air passage 13 is provided in the cylindrical portion of the auxiliary air passage 13. The positional relationship between the inlet 17 of the auxiliary air passage 13 and the auxiliary air inlet 15 is provided symmetrically about the axis of the cylindrical auxiliary air passage 13.

  A removable dust box 16 is provided at the bottom of the auxiliary air passage 13.

  Further, the inner wall surface of the auxiliary air passage 13 was subjected to antifouling processing.

  The operation and effect of the oil smoke purification apparatus of the second embodiment will be described.

  When air flows into the auxiliary air passage 13 from the inlet 17 of the auxiliary air passage 13 communicating with the main air passage 4, the inflowing air flows into the cylinder from the tangential direction of the outer periphery of the cylinder. Arise. At this time, if oil particles or the like are included in the air, centrifugal force is applied to the particles swirling with the air, so that the particles move toward the outer peripheral wall of the cylinder. The moved particles finally fall into the gap between the inner wall of the auxiliary air passage 13 and the deodorizing means 14 and enter the dust box 16 through the opening 18 of the dust box 16 provided at the bottom of the auxiliary air passage 13. Be collected.

  Thus, by centrifuging the oil particles from the air, it is possible to prevent the oil from adhering to the deodorizing means 14 and to prevent the deodorizing performance from being lowered. Moreover, the dust collected in the detachable dust box 16 can be easily discarded, and the maintainability is improved.

  Further, by sucking not only from the air inlet 3 but also from the auxiliary air inlet 15, the odor diffused in the living room is sucked into the auxiliary air passage 13 and deodorized. At this time, since the auxiliary air inlet 15 is provided in the cylindrical portion of the auxiliary air passage 13, the air flowing in from the auxiliary air inlet 15 forms a swirling flow in the cylindrical portion like the air flowing in from the auxiliary air passage 13. . At this time, since centrifugal force is applied to particles such as dust contained in the air, the particles move toward the outer peripheral wall of the cylinder. The moved particles finally fall into the gap between the inner wall of the auxiliary air passage 13 and the deodorizing means 14 and enter the dust box 16 through the opening 18 of the dust box 16 provided at the bottom of the auxiliary air passage 13. Be collected.

  Thus, by centrifuging dust from the air, it is possible to prevent dust from adhering to the deodorizing means and to prevent clogging of the deodorizing means.

  Further, since the inlet 17 of the auxiliary air passage 13 and the auxiliary air inlet 15 are provided symmetrically about the axis of the cylindrical auxiliary air passage 13, it flows into the auxiliary air passage 13 from the main air passage 4. The air and the air flowing into the auxiliary air passage 13 from the auxiliary intake port 15 form a swirling flow in the same direction. Therefore, the pressure loss can be reduced without disturbing the mutual airflow.

  In addition, since the inner wall surface of the auxiliary air passage 13 is subjected to antifouling processing, particles such as oil and dust that have moved toward the outer peripheral wall of the cylinder due to the swirling flow generated in the auxiliary air passage 13 are formed on the inner wall of the auxiliary air passage 13. It can prevent adhering, and it can prevent that the centrifugation of the particle | grains by a swirl flow is inhibited by the adhering matter.

(Embodiment 3)
FIG. 5 is a configuration diagram showing a cross section of the oil smoke purification apparatus according to the third embodiment of the present invention, and FIG. 6 is a configuration diagram showing details of the auxiliary air passage of the oil smoke purification apparatus according to the third embodiment of the present invention.

  5 and 6, the same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The structure of the oil smoke purification apparatus 1 of Embodiment 3 is demonstrated.

  The auxiliary air passage 19 has a cylindrical shape, and the inlet 23 of the auxiliary air passage 19 communicating with the main air passage 4 is provided in a cylindrical portion adjacent to the cylindrical end surface on the upstream side of the auxiliary air passage 19. The blade row 22 is disposed between the inlet 23 communicating with the main air passage 4 of the auxiliary air passage 19 and the deodorizing means 20, and a gap is provided between the inner wall of the auxiliary air passage 19 and the deodorizing means 20. In addition to the intake port 3, a sub-intake port 21 communicating with the sub-air channel 19 is provided in a cylindrical portion adjacent to the upstream cylindrical end surface of the sub-air channel 19.

  The operation and effect of the oil smoke purification apparatus 1 according to Embodiment 3 will be described.

  When air flows into the auxiliary air passage 19 from the inlet 23 and the auxiliary air inlet 21 of the auxiliary air passage 19, a swirling flow is generated at the portion of the blade row 22 disposed between the inlet of the auxiliary air passage 19 and the deodorizing means 20. . At this time, if oil particles or the like are contained in the air, centrifugal force is applied to the particles swirling with the air, so that the particles move toward the outer peripheral wall of the cylinder and finally the inner wall of the auxiliary air passage 19 and the deodorizing means. It falls into the gap between the two. Thus, by centrifuging the oil particles and the like from the air, it is possible to prevent oil and the like from adhering to the deodorizing means 20, and to prevent the deodorizing performance from being lowered.

  Further, in the third embodiment, since the swirl flow is generated in the blade row 22 installed in the auxiliary air passage 19, the inlet 23 communicating with the main air passage 4 of the auxiliary air passage 19, and the auxiliary air passage 19 The position and opening size of the communicating auxiliary inlet 21 are not limited, and the degree of freedom in layout can be increased.

  In the oil and smoke purification apparatus according to the present invention, oil does not adhere to the adsorbent or the like constituting the deodorizing means, and the deodorizing performance can be prevented from being lowered. Therefore, the maintenance and replacement span of the deodorizing filter can be lengthened, and the user's labor can be reduced. Therefore, the deodorizing filter is useful as a range hood for purifying oily smoke generated during cooking.

DESCRIPTION OF SYMBOLS 1 Oil smoke purification apparatus 2 Heating cooking appliance 3 Intake port 4 Main air path 5 Sub air path 6 Damper 7 Air blower 8 Exhaust port 9 Smoke removal means 10 Deodorizing means 11 Collision plate 12 Sub air inlet 13 Sub air path 14 Deodorizing means 15 Sub Intake port 16 Dust box 17 Inlet 18 Opening 19 Sub-air passage 20 Deodorizing means 21 Sub-intake port 22 Blade row 23 Inlet 101 Smoke purifier 102 Heating cooker 103 Inlet port 104 Exhaust port 105 Blower 106 Exhaust duct 107 Storage unit 108 Bypass Road 109 Purification unit 110 Damper

Claims (18)

An air inlet that sucks oily smoke and odor generated by cooking with a cooking device, a main air passage that communicates with the air inlet, a sub air passage that communicates with a portion of the main air passage, and the main air passage; A damper that closes one of the auxiliary air passages, a blower that distributes air to the main air passage and the auxiliary air passage, and an exhaust port that communicates with the main air passage and the auxiliary air passage, An oil smoke purification device, wherein oil smoke removing means is disposed in the main air passage, deodorizing means is disposed in the sub air passage, and oil adhesion suppressing means for suppressing oil from adhering to the deodorizing means is provided. . The oil smoke purification apparatus according to claim 1, wherein an inlet of the sub air passage is provided downstream of the oil smoke removing means arranged in the main air passage. The oil smoke purification device according to claim 1 or 2, wherein a sub air intake port is provided, and the sub air intake port communicates with a sub air passage. The oil smoke purification device according to claim 3, wherein the auxiliary intake port is opened in a direction different from the intake port. The oil smoke purification apparatus according to any one of claims 1 to 4, characterized in that, as oil adhesion suppression means, a collision means for colliding an air flow is provided in the vicinity of the inlet communicating with the main air passage of the sub air passage. 6. The oil and smoke purification apparatus according to claim 5, wherein the collision means is a collision plate inclined with respect to an inlet communicating with the main wind path of the auxiliary wind path. The oil smoke purification apparatus according to claim 5, wherein the collision means is a punching metal. 6. The oil smoke purification apparatus according to claim 5, wherein the collision means is a grease filter. As the oil adhesion suppressing means, the whole or part of the auxiliary air passage has a substantially cylindrical shape, and an inlet communicating with the main air passage of the auxiliary air passage is provided in the substantially cylindrical portion, and the inlet is a tangential direction of the substantially cylindrical outer periphery. The oil smoke purification apparatus according to claim 1, wherein a gap is provided between the inner wall of the auxiliary air passage and the deodorizing means. The auxiliary air inlet is provided, the auxiliary air inlet communicates with the auxiliary air passage, and an opening communicating with the auxiliary air inlet is provided in a cylindrical portion of the auxiliary air passage. The oil smoke purification device as described. 11. The inlet communicating with the main air passage of the auxiliary air passage and the opening communicating with the auxiliary air inlet are provided symmetrically about the axis of the substantially cylindrical auxiliary air passage. Oil smoke purification device. As the oil adhesion suppression means, the whole or part of the auxiliary air passage is formed in a substantially cylindrical shape, and an inlet communicating with the main air passage of the auxiliary air passage is provided on the cylindrical end surface or the cylindrical portion, and the inlet and the deodorizing means 5. The oil smoke purification apparatus according to claim 1, wherein a blade row is disposed between the inner walls of the auxiliary air passage and a deodorizing unit. The oil smoke purification apparatus according to any one of claims 9 to 12, wherein a detachable dust box is provided at the bottom of the auxiliary air passage. The oil smoke purification apparatus according to any one of claims 9 to 13, wherein the inner wall surface of the auxiliary air passage is subjected to antifouling processing. The oil smoke purification apparatus according to any one of claims 1 to 14, wherein the exhaust port is located indoors. In conjunction with the operation of the cooking utensil, the damper closes the auxiliary air path during operation of the cooking utensil, and when the operation of the cooking utensil ends, the damper closes the main air path in conjunction with it. The oil smoke purification apparatus according to any one of claims 1 to 15. A display unit that displays that the deodorizing operation is being performed when the main air passage is closed, and a changeover switch that arbitrarily switches whether the damper closes the main air passage or the sub air passage are provided. The oil smoke purification apparatus according to any one of claims 1 to 16. The oil and smoke purification apparatus according to any one of claims 1 to 17, wherein the deodorizing means is made of activated carbon.

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