JP2011237108A - Smokeless roaster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To practically operate a smokeless roaster in which air of high temperature including sucked smoke is guided to liquid such as water and stirred, so that an oil and fat component included in the smoke is absorbed by the liquid, and the air of high temperature is cooled, without needing large-scaled equipment.SOLUTION: In this smokeless roaster which includes heating sections 21-26 for heating cooking ingredients, a suction pathway 15 connected to an opening 22 around the heating sections at one end, a liquid container 41 for retaining the liquid so that at least a part of the other end of the suction pathway is located in the retained liquid, and an exhaust pathway 66 for exhausting the air in a space 16 kept into contact with a surface of the liquid retained in the liquid container, and the air including the smoke sucked from the suction pathway is allowed to pass in the liquid retained in the liquid container and exhausted from the exhaust pathway. The liquid container 41 includes a tank receiving section in which a liquid tank 50 receiving the liquid is disposed, and which has a raising pin 45 for pressing up an outflow valve 53 of the liquid tank, when the liquid tank is disposed.

Description

  The present invention relates to a smokeless roaster, and more particularly, to a smokeless roaster that exhausts high-temperature air containing smoke sucked from the periphery of a heating unit that heats food through a liquid held in a liquid container.

  In restaurants such as yakiniku restaurants where customers cook while cooking ingredients, smoke-free roasters are installed to prevent smoke generated from cooking ingredients from cooking and filling the store. Widely used. Smokeless roasters are produced by cooking with a suction port around the grilled roast and roastol when cooking by placing the roasted roast and rooster on the heating part with charcoal or burner provided on the table. By exhausting high-temperature air containing smoke from the suction port through the suction path, the smoke is not directed to the user and does not fill the room.

  The non-duct type smokeless roaster is provided with a grease filter, a deodorizing filter, and the like in the suction path to purify high-temperature air containing smoke and lower the temperature, and then exhaust it into the room. However, at present, the grease filter, the deodorizing filter and the like cannot sufficiently clean and lower the temperature of the exhaust gas. In particular, when the removal of the smoke containing the fat and oil component by the grease filter is insufficient, the air containing the fat and oil component flows into the deodorizing filter. As the deodorizing filter, one using activated carbon or the like is generally used. However, when air containing an oil and fat component flows in, the oil and fat component adheres to the surface of the activated carbon, and the deodorizing function is greatly reduced. Therefore, it is necessary to frequently replace the deodorizing filter, and there is a problem that the operation cost is high.

  Therefore, the duct type smokeless roaster connects the suction path to an exhaust duct arranged under the table or the like, and exhausts it outside the store. If hot air containing smoke is exhausted outside the store, it will not only adversely affect the surrounding area but also cause a fire hazard.Therefore, install a grease filter or deodorizing filter in the suction path of the smokeless roaster or the exhaust duct, or both. Provide. A duct-type smokeless roaster connects the suction path of a plurality of smokeless roasters to a single exhaust duct, and a single exhaust fan provided near the end of the exhaust duct commonly exhausts the smokeless roasters. However, there are also cases where exhaust is performed by providing an exhaust fan in the suction path of each smokeless roaster.

  However, even if a grease filter or a deodorizing filter is provided, air containing smoke cannot be sufficiently cleaned, so that air containing smoke to some extent flows into the suction path and the exhaust duct. The smoke in this case contains an oil and fat component, and when a smokeless roaster is used for a long time, even a small amount of the oil and fat component is deposited on the suction path and the wall surface of the exhaust duct. The air sucked in the suction path is air near the heating unit for cooking the food and is at a high temperature. Therefore, the sucked high-temperature air flows into the suction path and the exhaust duct, and there is a possibility that an oil film deposited on the suction path and the wall of the exhaust duct will ignite and cause an accident. In order to prevent this, a fire damper is generally provided. Further, the suction path and the inside of the exhaust duct are periodically cleaned. However, since the suction path is provided inside the smokeless roaster and the exhaust duct is provided under the floor, it is not easy to clean the suction path and the inside of the exhaust duct, especially the connection part of the suction path and the exhaust duct, etc. The tool cannot be inserted easily. For this reason, it takes a lot of labor to clean the inside of the suction path and the exhaust duct, and the current situation is that sufficient cleaning cannot be performed unless a cleaning specialist is requested. It was.

  Therefore, it is desired that the exhaust gas flowing from the suction path to the exhaust duct is further purified to reduce the amount of oil and fat components deposited on the suction path and the wall surface of the exhaust duct. If the amount of deposition can be reduced, the frequency of cleaning can be reduced, and the cleaning cost can be reduced accordingly.

  In addition, it is desired that the high-temperature air sucked into the suction path is made as low as possible to flow through the exhaust duct. If the temperature of the exhaust gas decreases, the possibility of a fire is reduced accordingly.

  In response to the above request, Patent Document 1 inserts a suction path into a water storage container, and guides and mixes high-temperature air containing the sucked smoke into the water, thereby mixing the fat and oil components contained in the smoke. It is described that water is absorbed and hot air is cooled. The tip of the suction path is inserted slightly into the water reservoir from the surface of the water, and the sucked air collides with the surface of the water, and the water is agitated and mixed with the air.

  Patent Document 2 stirs high-temperature air containing sucked smoke by colliding with the surface of a liquid reservoir such as water to absorb oil and fat components contained in the smoke and lowering the high-temperature air. Is described.

  As described in Patent Documents 1 and 2, high-temperature air containing sucked smoke is introduced into a liquid such as water, stirred, and contact-mixed to absorb oil and fat components contained in smoke into water. Hot air can be cooled. Thereby, most of the oil and fat components in the sucked air can be removed, and the oil and fat component removal rate is greatly improved as compared with a conventional grease filter or the like. Moreover, since the sucked high-temperature air contacts and mixes with a liquid such as water, the liquid is vaporized and takes heat of vaporization, so that the temperature of the air is greatly reduced. Therefore, by using the smokeless roaster having the configuration described in Patent Documents 1 and 2, the amount of oil components deposited on the suction passage and the wall surface of the exhaust duct can be reduced, and the cleaning cost can be reduced. Further, the exhaust temperature can be lowered. Can reduce the possibility of fire.

JP 59-118122 A JP 2006-149890 A JP-A-6-229531

  According to the configuration described in Patent Document 1, when the exhaust fan is in an operating state and high-temperature air containing smoke is sucked into the suction path, the air and water are agitated with great force near the water surface of the water storage container. As a result, the oil and fat components are absorbed in the water and the temperature of the air is lowered. This is accompanied by a sudden scattering and evaporation of water, and the water is scattered and air containing a large amount of water vapor is exhausted from the exhaust duct. For this reason, when the exhaust fan is put into an operating state, the water held in the water storage container decreases rapidly, and the water level of the water storage container drops in a short time. As described in Patent Document 1, it is important to arrange the lower end portion of the duct of the suction path so as to be positioned below the water surface, and when the lower end portion of the duct of the suction path is positioned above the water surface. The removal rate of oil and fat components in the sucked air is greatly reduced, and exhaust gas that does not sufficiently remove the oil and fat components flows into the exhaust duct, and the temperature drop of the exhaust becomes insufficient. The air will be exhausted. On the other hand, if the water level is too high, the addition of the exhaust fan increases and suction from the suction path cannot be performed. Therefore, during the use of the smokeless roaster, maintaining the water level of the water storage container within a predetermined level range is important for obtaining a sufficient effect.

  Patent Document 1 is configured to allow a water storage container to be taken in and out, to put water up to a predetermined water level of the water storage container and arrange it at the installation position, and to arrange the lower end portion of the duct of the suction path to be below the water surface. It is described. Therefore, the water supply to the water storage container is performed with the water storage container pulled out. As mentioned above, since the water level of the water storage container drops rapidly while using the smokeless roaster, the water container is pulled out while the customer is using the smokeless roaster to maintain the water level of the water storage container. Therefore, it is necessary to repeat the operation of supplying water. In practice, it is impossible to repeatedly perform such operations, and high-temperature air from which the oil and fat components are not sufficiently removed will flow into the exhaust duct, and the desired effect cannot be obtained in practice. there were.

  On the other hand, in Patent Document 2, a liquid supply pipe and a liquid supply nozzle are provided so that liquid such as water can be supplied to the liquid reservoir, and a liquid level sensor is provided to keep the liquid level in the liquid reservoir constant. It describes that it is maintained. Patent Document 2 describes providing a drain for discharging the liquid in the liquid reservoir. If it is the structure of patent document 2, it is possible to always maintain a liquid level at a fixed level.

  However, in order to realize the configuration described in Patent Document 2, it is necessary to provide a piping facility for a liquid supply pipe such as a water pipe, and further to provide a liquid supply nozzle having an automatic valve and a liquid level sensor. There is a problem that the cost becomes very high. Furthermore, as described in Patent Document 2, a drain pipe facility is required to provide a drain for discharging the liquid in the liquid reservoir, which further increases the facility cost.

  The present invention solves such a problem, and guides and stirs high-temperature air containing sucked smoke into a liquid such as water, and makes the liquid absorb the fat and oil components contained in the smoke. At the same time, a smokeless roaster that lowers the temperature of high-temperature air is intended to be put into practical use without large-scale equipment.

  The smokeless roaster of the present invention is a smokeless roaster that exhausts high-temperature air containing sucked smoke after passing through the liquid held in the liquid container, and when the liquid tank is arranged to achieve the above object, A tank receptacle having a push-up pin that pushes up the outflow valve of the liquid tank is provided in the liquid container, and the liquid is supplied by the liquid tank. The liquid is, for example, water, but is not limited thereto.

  That is, the smokeless roaster of the present invention holds the heating part for heating the food, the suction path whose one end is connected to the opening around the heating part, and at least a part of the other end of the suction path. A heating unit that includes a liquid container that holds the liquid so as to be disposed in the liquid and an exhaust path that exhausts air in a space that is in contact with the surface of the liquid held by the liquid container, and that includes smoke sucked from the suction path A smokeless roaster that allows at least a part of the air surrounding the liquid to pass through the liquid held in the liquid container and then exhausts it from the exhaust path. The liquid container is provided with a liquid tank containing the liquid, A tank receiving portion having a push-up pin that pushes up the outflow valve of the liquid tank when the tank is disposed is provided.

  In a state where the outflow valve of the liquid tank is pushed up by the push-up pin, if the surface position of the liquid held in the liquid container is lower than a predetermined level with respect to the outflow valve, the liquid in the liquid tank is transferred to the liquid container through the outflow valve. If the surface position of the liquid held in the liquid container is higher than a predetermined level with respect to the outflow valve, the liquid in the liquid tank stops flowing out to the liquid container due to the negative pressure in the upper gas space in the liquid tank. The surface position of the liquid held in the liquid container is kept constant.

  According to the present invention, since the liquid corresponding to the reduced liquid amount is automatically supplied from the liquid tank, the liquid level can be maintained at a certain level. If the capacity of the liquid tank is equal to or more than the amount consumed by a set of customers within the time of using the smokeless roaster, the liquid tank can be replaced with a liquid tank filled with liquid each time the set of users changes. No operational problems occur. In this way, a liquid tank having an outflow valve is used, and the surface position of the liquid held by the liquid container can be maintained constant with a simple configuration in which a push-up pin is provided in the tank receiving portion of the liquid container. Thus, since there is no need to provide piping equipment, a liquid supply nozzle having an automatic valve, and a liquid level sensor, the cost is low. Furthermore, the fat and oil component contained in the smoke dissolves in the liquid, and the liquid is in a state where the fat and oil component is mixed. When the liquid level of the liquid in such a state is detected by the liquid level sensor, there arises a problem that the position of the liquid level cannot be detected accurately. On the other hand, in the configuration of the present invention in which the outflow valve of the liquid tank is pushed up by the push-up pin, the liquid level is controlled with respect to the substantial liquid level of the liquid in a state where the oil and fat components are mixed. Contact mixing of air and liquid can be performed stably.

  As described above, since the air exhausted from the exhaust duct contains a large amount of scattered water droplets and liquid vapor, a liquid trap filter is provided in the exhaust path, and liquid droplets contained in the exhausted air and It is desirable to trap steam. As the liquid trap filter, for example, a mesh filter made of stainless steel or the like may be used, and a plurality of coarse mesh filters may be used. In order to reduce liquid consumption, it is desirable that the liquid trapped by the liquid trap filter returns to the liquid container. For this purpose, for example, a liquid trap filter is disposed on the upper part of the liquid container so that the trapped liquid is dropped onto the liquid container.

  A deodorizing filter may be provided in the exhaust path. As described above, the deodorizing filter generally uses activated carbon or the like, and when the air containing the fat and oil components flows in, the deodorizing function is significantly lowered. However, in the configuration of the present invention, the deodorizing filter is included in the sucked air. Since the oil and fat component is almost removed by contact mixing with the liquid, it is possible to suppress the functional deterioration of the deodorizing filter. Therefore, it is not necessary to frequently replace the deodorizing filter, and the operating cost can be reduced.

  When the smokeless roaster of the present invention is used, an oil / fat component is mixed with the liquid in the liquid container, and the proportion of the oil / fat component to be mixed increases as the usage time increases. Therefore, it is necessary to collect the liquid in the liquid container at any time and clean the liquid container. Cleaning is performed, for example, before the end of the day's business and the start of the next business. Therefore, it is necessary to be able to easily perform the operation of taking out the liquid container and setting it again in use.

  Therefore, the other end of the suction path is movable between the arrangement state and the avoidance state, and the liquid container is detachable with the other end of the suction path moved to the avoidance state. It is desirable to do. Specifically, the other end of the suction path is held in a raised state, and the liquid container is taken in and out.

  By applying the present invention, most of the oil and fat components in the sucked air can be removed, and the exhaust temperature can be lowered sufficiently. Therefore, by providing an exhaust fan in the exhaust path, the amount of smoke emission is greatly reduced. A non-duct type smokeless roaster can be realized. Further, if a deodorizing filter is provided in the exhaust path, the odor of the exhaust can be further reduced.

  As described above, in stores using smokeless roasters, the exhaust passages of a plurality of smokeless roasters are connected to a common integrated exhaust passage, and the exhaust fan provided at the end of the integrated exhaust passage is used for air in the integrated exhaust passage. Is exhausted. The present invention can also be applied to such stores.

  It is also possible to connect the exhaust paths of a plurality of smokeless roasters, each provided with an exhaust fan, to a common integrated exhaust path. In this case, the exhaust air can be exhausted without providing an exhaust fan at the end of the integrated exhaust path. Although it is possible, exhaust can be performed more reliably if an exhaust fan is provided at the end of the integrated exhaust path.

  According to the present invention, a smokeless roaster that exhausts air after removing most of the oil and fat components contained in the smoke and reducing the temperature from the high-temperature air containing the sucked smoke without performing piping or the like, You will be able to drive stably.

FIG. 1 is a side sectional view showing a schematic configuration of a smokeless roaster according to a first embodiment of the present invention. FIG. 2 is an external view of the liquid container according to the first embodiment. FIG. 3 is a view showing a state in which the liquid tank used in the first embodiment, the push-up pin provided in the tank receiving portion of the liquid container, and the outflow valve of the liquid tank are pushed up by the push-up pin. FIG. 4 is a diagram for explaining the operation of setting the liquid tank in the first embodiment. FIG. 5 is a diagram illustrating an operation of removing the liquid container in the first embodiment. FIG. 6 is a diagram illustrating an example of an integrated exhaust path (duct) of a store having a plurality of smokeless roasters according to the first embodiment. FIG. 7 is a diagram illustrating a modification of the smokeless roaster of the first embodiment. FIG. 8 is a side sectional view showing a schematic configuration of the smokeless roaster according to the second embodiment of the present invention. FIG. 9 is a side sectional view showing a schematic configuration of the smokeless roaster according to the third embodiment of the present invention. FIG. 10 is a side sectional view showing a schematic configuration of the smokeless roaster of the fourth embodiment of the present invention.

  FIG. 1 is a side sectional view showing a schematic configuration of a smokeless roaster according to a first embodiment of the present invention. For ease of viewing, only the cross section of the sheet metal cylinder is shown by a line. The smokeless roaster of the first embodiment is for roast meat, but is not limited to this, and any smokeless roaster may be used.

  As shown in FIG. 1, the smokeless roaster of the first embodiment includes a table 11, side plates 18 and 19 that support the table 11, a bottom plate 17, and a cooking unit that cooks food provided at the center of the table 11. And a smokeless exhaust mechanism for exhausting high-temperature air including smoke from the cooking unit. In the first embodiment, an example in which the cooking unit is circular is shown, but the same applies to a rectangular shape. The smokeless exhaust mechanism of the first embodiment has a sheet metal cylinder 12 that is accommodated in a circular hole provided in the center of the table 11. The cylinder 12 is connected to a sheet metal cylinder 13 having a smaller diameter than the cylinder 12 via a circular plate, and the cylinder 13 is further connected to a sheet metal box-shaped member 14. The box-shaped member 14 is fixed to the bottom plate 17 and forms a stirring space 16. A rectangular opening is provided in a portion in contact with the bottom plate 17 on the left side of the box-shaped member 14. Therefore, the internal space 15 of the cylinder 12 is connected to the stirring space 16 of the box-type member 14 via the cylinder 13.

  The cooking unit includes an inner cylinder 21 placed on the upper edge of the circular shape of the cylinder 12, a charcoal tray 24 fitted in the inner cylinder 21, a grill 23 placed on the charcoal tray 24, a burner 26, Have A large number of holes 22 for sucking air in the vicinity of the grille 23 are provided on the side wall of the cylinder above the grille 23 of the inner cylinder 21. Water or the like can be held at the bottom of the inner cylinder 21 in order to extinguish high-temperature foods dropped from the grill 23. Each member of the cooking unit can be easily put in and out, and after a set of users has used, the member is collected and separately cleaned, and the cleaned member can be set.

  There are various modifications of the cooking unit depending on the cooking method. For example, the portion including the cylinder 12 of the smokeless exhaust mechanism may be a removable unit, and the tip of the unit may be inserted into the cylinder 13 and connected. . The present invention is applicable regardless of the configuration of the cooking unit and the smokeless exhaust mechanism.

  A cylinder 31 having a collar 32 is fitted into the cylinder 13. A disc 33 is attached to the middle part of the lower side of the cylinder 31. A cylinder 35 is attached to the outer periphery of the disc 33, and a cylinder 34 with a tip portion inclined is attached to the inner side slightly from the outer periphery of the disc 33. The cylinder 31 can be moved so as to slide in the cylinder 13, but since the collar 32 and the disk 33 are attached, the collar 32 is in contact with the upper end (disk) of the cylinder 13. The circular plate 33 can be moved between a state where the circular plate 33 contacts the lower end portion of the cylinder 13 (the upper plate of the box-shaped member 14). If the disc 33 is removable, the cylinder 31 can be pulled out of the cylinder 13.

  On the bottom plate 17, a liquid container 41 having the appearance shown in FIG. The liquid container 41 is a sheet-like box-shaped container, and the upper side is opened. The liquid container 41 includes a standing plate 46, a cylinder 42 whose tip is inclined, and a liquid tray 44. The liquid container 41 is inserted from the opening on the left side of the box-shaped member 14 and set in a use state as shown in FIG. When the liquid container 41 is set in a use state, the upper part of the upright plate 46 comes into contact with the box-shaped member 14. It is desirable to provide an elastic member 47 at the contact portion of the standing plate 46 with the box-shaped member 14 so as to be in close contact with each other. Although not shown, the contact portion between other sheet metals is also elastic. It is desirable that the member 47 is provided so as to be in close contact with each other. Further, an opening 48 is provided below the standing plate 46. The opening 48 is formed to be lower than the liquid level WL when the liquid is held in the liquid container 41. Since the opening 48 is provided, the liquid levels on both sides separated by the standing plate 46 of the liquid container 41 have the same height.

  The cylinder 42 is fixed to the bottom of the liquid container 41 on one side separated by the standing plate 46, and is arranged so that the tip of the cylinder 31 is positioned in the cylinder 42 when the liquid container 41 is set in a use state. . An opening (not shown) is provided below the cylinder 42, and the opening is formed to be lower than the liquid level WL when the liquid is held in the liquid container 41. Through this opening, the liquid can pass between the inside and the outside of the cylinder 42. A mounting base 43 is fixed to the bottom of the liquid container 41 on the other side separated by the standing plate 46, and a liquid receiving tray 44 is attached to the mounting base 43. The liquid container 41 is provided with a tank receiving portion (not shown) so that the liquid tank 50 can be placed thereon. When the liquid tank 50 is placed on the tank receiving portion, the liquid supply cap 51 of the liquid tank 50 fits into the liquid receiving tray 44, and the outflow valve in the liquid supply cap 51 is pushed up by the protruding pin of the liquid receiving tray 44. Here, it is assumed that the mounting base 43 and the liquid receiving tray 44 are included in the tank receiving portion.

  3A is a diagram showing the appearance of the liquid tank 50, FIG. 3B is a diagram showing the appearance of the liquid tray 44, and FIG. 3C is a diagram of the liquid tray 44. It is a figure which shows the state which the push-up pin pushed up the outflow valve of the liquid tank 50 with the push-up pin.

  As shown to (A) of FIG. 3, the liquid tank 50 has the structure similar to the tank used as a kerosene tank of the oil stove described in patent document 3, for example. Here, an example is shown in which water is used as the liquid held in the liquid container 41. However, any liquid that is suitable for removing oil and fat components by contact mixing with the sucked air and has no environmental problems can be used. . The liquid tank 50 has a cap 51 with a screw. The cap 51 is removed with the cap 51 facing upward, water is poured into the liquid tank 50, and the cap 51 is attached. With the cap 51 attached, water in the liquid tank 50 does not leak even if the cap 51 is down. An arm 52 is provided on the opposite side of the cap 51 of the liquid tank 50, and the liquid tank 50 can be easily carried with the cap 51 facing down. The liquid tank 50 has a window 53 for observing the internal water level.

  As shown in FIG. 3B, the liquid tray 44 has a push-up pin 45 at the center.

  As shown in FIG. 3C, a guide 52 and an outflow valve 53 biased by a spring 54 in the guide 52 are provided in the cap 51. In the state shown in FIG. 3A, the outflow valve 53 is pressed against the tip 55 of the cap 51 by the spring 54 and closed, so that the water in the liquid tank 50 does not leak. As shown in FIG. 3C, in a state where the liquid tank 50 is placed on the tank receiving portion, the push-up pin 45 of the liquid receiving tray 44 pushes up the outflow valve 53, and the water in the liquid tank 50 is transferred to the liquid container. It flows out into 41. When the water level of the liquid container 41 rises and reaches the tip 55 or more, air will not flow into the liquid tank 50 even if water flows out of the liquid tank 50, so that the upper air in the liquid tank 50 enters. The pressure in the space becomes lower than the atmospheric pressure and becomes a negative pressure state. Therefore, when the pressure difference due to the difference between the water level in the liquid tank 50 and the liquid container 41 and the negative pressure are balanced, the outflow of water from the liquid tank 50 stops. If the pressure balance is lost according to the consumption of water in the liquid container 41, the water flows out from the liquid tank 50 and becomes balanced again, and the outflow of water from the liquid tank 50 stops. In this way, the water level in the liquid container 41 is maintained at a substantially constant level.

  Returning to FIG. 1, a deodorizing filter container 61 is provided on the right side of the box-shaped member 14. The inside of the deodorizing filter container 61 is partitioned into an input unit 63 and an output unit 65, and a deodorizing filter 64 is disposed therebetween. The input unit 63 is connected to the stirring space 16 through the mesh filter 62. The output unit 65 is connected to the exhaust duct 66. The deodorizing filter 64 is a bundle of cylindrical filters containing activated carbon, and adsorbs and deodorizes the odor of air passing therethrough. The mesh filter 62 is, for example, a filter in which five stainless steel coarse filters are stacked, but is not limited thereto.

  Next, a procedure for using the smokeless roaster 10 of the first embodiment will be described.

  In the smokeless roaster 10 of the first embodiment, the liquid container 41 not containing water is set in the state shown in FIG. 1 and arranged so that the tip of the cylinder 31 is located inside the cylinder 42. When the liquid tank 50 containing water is manually placed on the tank receiving portion, the water flows out from the liquid tank 50 into the liquid container 41. Water flows into the right side portion through the opening 48 of the liquid container 41, and the outflow of water stops in a state where the water fills the liquid container 41 to the vicinity of a predetermined level. At this time, the tip of the cylinder 31 is in a state of entering about 6 to 10 mm in water. The water in the liquid tank 50 decreases because it has flowed into the liquid container 41. However, if necessary, water may be refilled in the liquid tank 50 and placed on the tank receiving portion.

  When air is sucked from the exhaust duct, air in the stirring space 16 is sucked through the output unit 65, the deodorizing filter 64, the input unit 63, and the mesh filter 62, and the stirring space 16 is in a negative pressure state. In response to this, the air in the cylinder 31 connected to the outside pushes down the water in the cylinder 31, and the air flows into the stirring space 16 from the cylinder 31. This air is high-temperature air containing smoke sucked from the vicinity of the grill 23 through the opening 22, the internal space 15 and the cylinder 31. The sucked air collides with the water surface in the cylinder 31, stirs the water vigorously inside the cylinder 31 and between the cylinder 31 and the cylinder 42, and the water scatters in this portion. However, the cylinder 31 and the cylinder 42 have shapes as shown in FIG. 1, and the amount of water scattered to the outside of the cylinder 42 is small. By such agitation, air and water are mixed in contact with each other, and the fat component in the air is mixed with water and the temperature is lowered. The inflowing air is hot and the fat component is easily mixed with water. Moreover, since the high temperature air which flows in heats water, the temperature of the water in the liquid container 41 rises gradually, and the fat component is more easily mixed with water. In this way, the air from which the oil and fat components have been removed passes between the cylinder 31 and the cylinder 42 and further passes between the cylinders 34 and 35 and the cylinder 42 to reach the upper part of the stirring space 16. Since the scattering of water is further reduced between the cylinders 34 and 35 and the cylinder 42, the air reaching the stirring space 16 contains few large water droplets, but contains many water fine particles and water vapor. The stirring space 16 is further sucked and passes through the mesh filter 62. At this time, water fine particles and water vapor are trapped, and the water particles and water vapor in the air are further reduced. Water fine particles and water vapor trapped by the mesh filter 62 are dropped into the liquid container 41 as water droplets.

  The air that has entered the input unit 63 passes through the deodorizing filter 64 to remove odor, and is exhausted through the output unit 65, the exhaust duct 66, and the exhaust fan. Since the oil and fat components are almost removed from the air flowing into the deodorizing filter 64, the deodorizing filter 64 containing activated carbon is less deteriorated.

  Next, the setting operation of the liquid tank 50 will be described with reference to FIG. 4A is a top view of the left portion of the table, and FIG. 4B is a side sectional view.

  As shown in FIGS. 1 and 4, the liquid tank 50 is disposed on the left side of the table 10. A part of the left side plate 18 is a door 20 that can be opened and closed. With the door 20 open, the arm 52 is held and the liquid tank 50 is inserted under the table and placed on the tank receiving portion. As a result, the liquid supply cap 51 of the liquid tank 50 is fitted into the liquid receiving tray 44, and the outflow valve in the liquid supply cap 51 is pushed up by the protruding pin of the liquid receiving tray 44. When the liquid tank 50 is taken out, an operation reverse to the above may be performed.

  The time for a normal set of users to use the smokeless roaster is at most about 2 hours, and according to experiments, the amount of water consumed within this time was less than 2 liters. Therefore, if a 2 liter liquid tank 50 is used, it is not necessary to replenish water with the liquid tank 50 during the time when a set of customers use the smokeless roaster. Therefore, when a new customer starts using the smokeless roaster 10, it is sufficient to set the liquid tank 50 filled with water, and there is no practical problem.

  In the smokeless roaster of the first embodiment, when the oil and fat component is mixed with the water in the liquid container 41 according to use, and the use time becomes longer, the ratio of the oil and fat component mixed with the water in the liquid container 41 increases accordingly. . As described above, the smokeless roaster of the first embodiment can be used as it is by replenishing water with the liquid tank 50. However, when the ratio of the oil and fat component mixed in water increases, the oil and fat component is removed from the air. The performance to remove deteriorates. Therefore, it is desirable to periodically perform a cleaning operation for replacing the water in the liquid container 41 and cleaning the inside of the liquid container 41. The frequency of performing the cleaning work is determined by the use situation of the smokeless roaster. For example, when there are about 5 to 6 sets of customers per day, the inside of the liquid container 41 is once a day. It is desirable to perform a cleaning operation for cleaning. Of course, after the use of the smokeless roaster by one set of customers, the liquid container 41 is recovered, a new liquid container 41 is set, water is supplied in the liquid tank 50, the recovered liquid container 41 is cleaned, and then It may be used.

  FIG. 5 is a diagram for explaining the operation of removing the liquid container 41 with the smokeless roaster of the first embodiment. As shown in FIG. 5, the liquid tank 50 is removed, and all members of the cooking unit including the inner cylinder 21, the charcoal tray 24, the grill 23, and the burner 26 are removed. In a yakiniku restaurant, after the use of a smokeless roaster by a set of customers is completed, the members of the cooking section except for the burner 26 are generally collected and replaced with new cleaned members. In any case, the members of the cooking unit can be easily attached and detached. As a result, the cylinder 31 having the collar 32 can be directly held.

  In the above state, the cylinder 31 is pulled up until the circular plate 33 comes into contact with the top plate of the box-shaped member 14, and this state is maintained. For this purpose, it is desirable to provide a handle for pulling up the cylinder 31 on the collar 32 so that the state can be maintained by inserting a jig or the like. In this state, the liquid container 41 is pulled out, the water therein is discarded, and the liquid container 41 is cleaned. The liquid container 41 may be withdrawn after the water in which the oil and fat components in the liquid container 41 are mixed is collected by a vacuum device or the like. When setting the liquid container 41, the liquid container 41 is inserted in the state of FIG. 5 and the cylinder 31 is lowered so that the tip of the cylinder 31 is positioned inside the cylinder 42. Thereafter, the cooking unit is set and water is supplied to the liquid container 41 by the liquid tank 50.

  FIG. 6 is a diagram illustrating a schematic configuration of an exhaust system of a yakiniku restaurant including a plurality of tables having smokeless roasters according to the first embodiment. In this example, six tables 10A to 10F are shown. The deodorizing filter containers 61A to 61F of the smokeless roaster of each table are connected to the store integrated exhaust path (duct) via the exhaust ducts 66A to 66F. Specifically, the exhaust ducts 66A and 66B of the tables 10A and 10B are connected to the first integrated exhaust duct 104 by the first connection box 101. The exhaust ducts 66C and 66D of the tables 10C and 10D are connected to the second integrated exhaust duct 105 by the second connection box 102. The exhaust ducts 66E and 66F of the tables 10E and 10F are connected to the third integrated exhaust duct 106 by the third connection box 103. The first to third integrated exhaust ducts 106 are connected to the fourth integrated exhaust duct 108 by a fourth connection box 107. The fourth integrated exhaust duct 108 is connected to the exhaust fan 110 through the fire damper 109, and the exhaust port of the exhaust fan 110 is directed outdoors.

  As described above, in the first embodiment, the oil and fat components can be reliably removed from the air containing smoke sucked from the vicinity of the grill net 23 and the temperature can be lowered, and then the exhaust duct 66 can exhaust the air. It is only necessary to replenish water with the liquid tank 50 without performing drainage equipment such as a water pipe, and the equipment cost and operation cost can be suppressed.

  FIG. 7 is a side sectional view showing a configuration of a modified example of the smokeless roaster of the first embodiment. This modification is a modification of the portion of the cylinder 31 of the first embodiment, and the other portions are the same.

  As shown in FIGS. 1 and 5, in the first embodiment, the cylinder 31 has a collar 32 and a disk 33, and therefore cannot be easily pulled out from the cylinder 13. The plate 33 had to be configured to be removable. Since the cylinder 31 cannot be easily removed from the cylinder 13, it is not easy to clean, and in particular, it is not easy to clean the disk 33 and the surfaces of the cylinders 34 and 35 attached to the disk 33. .

  Therefore, as shown in FIG. 7, in this modification, a box-shaped member 14 is provided under the cylinder 12, and a hole having a cylinder diameter smaller than the diameter of the cylinder 12 is provided in the top plate of the box-shaped member 14. Then, the cylinder 71 is attached to a disc 72 having a diameter slightly smaller than the diameter of the cylinder 12. The diameter of the cylinder 12 is a little larger than the cylinder diameter and acts as a collar. Then, members 73, 74 and 75 corresponding to the disc 33 and the cylinders 34 and 35 of the first embodiment are attached to the cylinder 71.

  As shown to (A) of FIG. 7, the stirring space 16 spreads compared with 1st Embodiment. As shown in FIG. 7B, all members attached to the disk 33 can be removed by pulling the disk 33 upward. This facilitates cleaning.

  FIG. 8 is a side sectional view showing a schematic configuration of the smokeless roaster according to the second embodiment of the present invention. The second embodiment is different from the first embodiment in that an exhaust fan 67 for the exhaust duct 66 is provided, and the other parts are the same. The exhaust fan 67 is operated when the smokeless roaster is used, and is preferably stopped when the smokeless roaster is not used.

  When the smokeless roaster of the second embodiment is used in the store shown in FIG. 6, the exhaust duct 66 of each table is connected to the integrated exhaust duct. As the exhaust fan 110, a fan having a smaller power than that of the first embodiment can be used. Further, the exhaust fan 110 may not be provided depending on the power of the exhaust fan 67 of each table, the shape of the integrated exhaust duct, and the like.

  FIG. 9 is a side sectional view showing a schematic configuration of the smokeless roaster according to the third embodiment of the present invention. The third embodiment is different from the first embodiment in that a fireproof damper 85 is provided between the mesh filter 62 and the deodorizing filter 83, and other parts are the same.

  In the smokeless roaster of the third embodiment, the deodorizing filter container 81 includes an input unit 82 and a deodorizing filter 83, and an end of the deodorizing filter 83 faces the exhaust duct 84. A fireproof damper 85 is provided between the mesh filter 62 in the deodorizing filter container 81 and the input unit 82. The fire-proof damper 85 is a member that can switch the path between a passing state and a blocking state, and has a fuse, and is normally in a passing state, but when hot air flows into the path and the fuse blows, the spring Switch to the shut-off state with the power of.

  FIG. 10 is a side sectional view showing a schematic configuration of the smokeless roaster of the fourth embodiment of the present invention. The fourth embodiment is similar to the second embodiment in that the smokeless roaster 10 includes an exhaust fan 93, but the exhaust duct is not provided and the exhaust of the exhaust fan 93 is a hole in the side plate 19 (not shown). It is different that it is released into the room through. In other words, the smokeless roaster of the fourth embodiment is a non-duct type smokeless roaster. The exhaust fan 93 is operated only when the smokeless roaster is used, and is stopped when the smokeless roaster is not used.

  The smokeless roaster deodorizing filter container 91 of the fourth embodiment includes a deodorizing filter 92 and an exhaust fan 93.

  As described above, in the fourth embodiment, most of the oil and fat components in the sucked air can be removed, the temperature of the exhaust gas can be sufficiently lowered, and the odor is also removed by the deodorizing filter 92. Therefore, the exhaust fan 93 Therefore, even if the air is exhausted indoors, the user will not feel uncomfortable.

  As mentioned above, although embodiment of this invention was described, it cannot be overemphasized that various modifications are possible. For example, the matters described in the embodiments and the modifications can be combined. Moreover, the shape and arrangement of each part are appropriately designed according to the intended use of the smokeless roaster. For example, the cooking unit may be a rectangular one as well as a circular one.

Hereinafter, the following aspects are further disclosed regarding the embodiment.
(Aspect 1)
A heating unit for heating the ingredients;
A suction path having one end connected to an opening around the heating unit;
A liquid container for holding the liquid so that at least a part of the other end of the suction path is disposed in the held liquid;
An exhaust path for exhausting air in a space in contact with the surface of the liquid held by the liquid container;
A smokeless roaster that exhausts from the exhaust path after passing at least a part of the air around the heating unit including smoke sucked from the suction path through the liquid held in the liquid container,
The liquid container is
A smokeless roaster comprising: a tank receiving portion having a liquid tank containing the liquid and having a push-up pin that pushes up an outflow valve of the liquid tank when the liquid tank is disposed.
(Aspect 2)
In a state where the outflow valve of the liquid tank is pushed up by the push-up pin, when the surface position of the liquid held by the liquid container is lower than a predetermined level with respect to the outflow valve, the liquid in the liquid tank is When the surface position of the liquid held in the liquid container is higher than a predetermined level with respect to the outflow valve, the negative pressure of the upper gas space in the liquid tank causes the negative pressure in the liquid tank. The smokeless roaster according to aspect 1, wherein the outflow of the liquid in the liquid tank to the liquid container is stopped, and the surface position of the liquid held by the liquid container is maintained constant.
(Aspect 3)
The smokeless roaster according to claim 1 or 2, wherein the exhaust path includes a liquid trap filter that traps the liquid droplets contained in the exhausted air and liquefies and traps the liquid vapor in the path.
(Aspect 4)
The smokeless roaster according to aspect 3, wherein the liquid trap filter is a mesh filter.
(Aspect 5)
5. The smokeless roaster according to aspect 3 or 4, wherein the liquid trap filter is disposed so that the trapped liquid returns to the liquid container.
(Aspect 6)
The smokeless roaster according to any one of aspects 1 to 5, wherein the exhaust path includes a deodorizing filter in the path.
(Aspect 7)
The other end of the suction path is movable between an arrangement state and an avoidance state;
The smokeless roaster according to any one of aspects 1 to 6, wherein the liquid container is detachable in a state where the other end of the suction path is moved to an avoidance state.
(Aspect 8)
The smokeless roaster according to any one of aspects 1 to 7, further comprising an exhaust fan provided in the exhaust path.
(Aspect 9)
A store comprising a plurality of smokeless roasters according to any one of aspects 1 to 7,
An integrated exhaust path to which the exhaust paths of the plurality of smokeless roasters are connected;
A store comprising an exhaust fan for exhausting air in the integrated exhaust path.
(Aspect 10)
A store comprising a plurality of smokeless roasters according to aspect 8,
A store comprising an integrated exhaust path to which the exhaust paths of the plurality of smokeless roasters are connected.
(Aspect 11)
The store according to aspect 11, further comprising an exhaust fan that exhausts air in the integrated exhaust path.
(Aspect 12)
A heating unit for heating the ingredients;
A suction path having one end connected to an opening around the heating unit;
A liquid container for holding the liquid so that at least a part of the other end of the suction path is disposed in the held liquid;
An exhaust path for exhausting air in a space in contact with the surface of the liquid held by the liquid container;
After allowing at least a part of the air around the heating unit including smoke sucked from the suction path to pass through the liquid held in the liquid container, the liquid is put into a smokeless roaster that exhausts from the exhaust path. A method of supplying smokeless roaster degreasing liquid,
Placing the liquid in a liquid tank;
A method for supplying smokeless roaster degreasing liquid, characterized in that the liquid tank is disposed so that an outflow valve of the liquid tank is pushed up by a push-up pin provided in the liquid container.

  The present invention is applicable to any smokeless roaster.

DESCRIPTION OF SYMBOLS 10 Smokeless roaster 11 Table 12 Cylinder 16 Stirring space 31 Cylinder 41 Liquid container 44 Liquid receiving tray 45 Push-up pin 50 Liquid tank 53 Outflow valve 62 Mesh filter 64 Deodorizing filter 66 Exhaust duct

Claims (1)

A heating unit for heating the ingredients;
A suction path having one end connected to an opening around the heating unit;
A liquid container for holding the liquid so that at least a part of the other end of the suction path is disposed in the held liquid;
An exhaust path for exhausting air in a space in contact with the surface of the liquid held by the liquid container;
A smokeless roaster that exhausts from the exhaust path after passing at least a part of the air around the heating unit including smoke sucked from the suction path through the liquid held in the liquid container,
The liquid container is
A smokeless roaster comprising: a tank receiving portion having a liquid tank containing the liquid and having a push-up pin that pushes up an outflow valve of the liquid tank when the liquid tank is disposed.

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