KR20110139161A - A top ring for smokeless roaster having a cooling structure of exhaust gases and an arrangement ring therefor - Google Patents

Abstract

PURPOSE: A top ring having an exhaust gas cooling structure for a smokeless roaster and an arranged ring for the top ring are provided to prevent oil contained exhaust gas from contacting the interior surface of an external air intake channel and to form stable flow of exterior air. CONSTITUTION: An arrangement ring for a top ring of a smokeless roaster is composed as follows. A covering member(1) is arranged in the upper side between the interior surface of an opening of a table and the top of an inner case. An inner annular wall part(2) has a lower part which is extended from the inner periphery of the covering member and overlapped on the upper part of the inner case. A partition annular wall part(3) is arranged outside of the inner annular wall part, located in the upper side of an intake space, and has an upper part integrated in the lower part of the covering member. A plurality of exhaust gas intake holes(4,4a) are formed in the upper part of the inner annular wall part above the inner case. The inner and outer walls of the inner annular wall part are vertical to reduce resistances.

Description

Top ring for smokeless roaster having a cooling structure of exhaust gases and an arrangement ring therefor}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a top ring for lead-free roasters having an exhaust gas cooling structure in which exhaust gas in a high temperature state is lowered and an outside air is introduced to prevent internal overheating, and a mounting ring for the top ring.

Conventionally, in a smokeless roaster, high-temperature combustion exhaust gas, lead-free, and the like (hereinafter referred to as exhaust gas) generated during cooking such as bulgogi are sucked into the suction flow path from the suction hole of the top ring. After adsorb | sucking a fats and oils and an oil mist with a fats and oils collection | recovery apparatus, it filtered and passes through an exhaust duct, passes an external deodorizing apparatus, and removes it by dust removal treatment.

In addition, as a monitoring device for checking the cleaning inspection time and the like, the roaster operation time is integrated, or a temperature sensor of an external case is installed, and a function such as use warning and emergency gas shutoff is provided. In addition, measures have been taken to prevent fire accidents in advance, and the temperature sensor for the outer case constantly monitors the temperature, and there is a lack of intake air flow from the top ring, blockage of the exhaust duct system, and in the exhaust path. As an overheating safety device in response to a fire occurrence in Japan, a gas shutoff, a buzzer warning, a fire damper, and an interlocking operation of an exhaust fan are provided.

However, since the monitoring device is a device for monitoring and warning the situation of the roaster to the last, proper cleaning and inspection is indispensable for everyday use. If this is neglected, oil flow accumulates in the holding / recovery device or the exhaust duct system Occlusion, the amount of suction air from the top ring is insufficient, the internal and external cases in the lead-free roaster, etc. become overheated, and in such a situation, a bonfire phenomenon (in particular, when heating and cooking foods with a large amount of fat or oil ingredients) Or the like falling on a heating cooker, in which case flames and smoke are emitted in some cases], the inhaled fire or hot heat of the combustion gas directly strikes the fat and oil recovery part, and ignites the oil and fat accumulated. There was a risk of duct fire or the like.

Then, in order to solve the said subject, the applicant of this application has an inner case inside the outer case which has an upper opening which was provided under the table in view of the subject that the inner and outer cases in a lead-free roaster etc. become overheating state. The pipe member is placed on the inner circumferential surface of the opening formed on the table and above the gap between the upper part of the inner case, and the upper part of the suction space formed between the outer case and the inner case, The partition wall provided in the lower part of a pipe member is divided into internal and external parts, and the suction hole of exhaust gas is formed in the exhaust gas suction flow path of an inward part, and the external air suction opening is formed in the external air suction flow path of an outer part, and At the time of gas suction, the outside air is sucked from the suction opening into the outside air suction flow path, flows along the inner wall surface of the outer case, and the high temperature from the inner peripheral part The exhaust gas cooling structure of the lead-free roaster was developed so that the exhaust gas does not directly contact the inner wall surface of the outer case and the oils and fats contained in the exhaust gas do not adhere to the inner wall surface so as not to overheat the outer case. See, for example, Patent Document 1).

<Patent Document 1> Japanese Patent No. 3626953

However, the shape of the partition wall specifically illustrated as an embodiment of the invention in Patent Document 1 includes an inclined portion 11a and a vertical portion 11b, as shown in FIGS. In addition, although the patent invention described in patent document 1 is not limited to this structure, when it set it as this structure, there existed a subject which must be solved as follows.

(1) It cannot be denied that the exhaust gas and the outside air flow smoothly and some load acts, and as a result, the laminar flow of the outside air that is drawn into the outside air suction flow path from the suction opening and flows along the inner wall surface of the outer case In some cases, the exhaust gas is not stabilized, and a part of the exhaust gas contacts the inner wall surface of the outer case, whereby the holding oil and the like may adhere.

(2) Since the mounting ring serves as a partition wall, both the top ring and the mounting ring come into contact with the exhaust gas, and the oil-containing oils and the like adhere and become contaminated.

The present invention relates to a new top ring and mounting ring constituting the patent invention in Patent Document 1, wherein the above-mentioned (assuming the top ring and mounting ring illustrated in FIGS. 3 to 5 of Patent Document 1) 1) and a suction space formed between an outer case and an inner case having an outer case having an upper opening disposed below the table and an inner case disposed inside the outer case in view of the problems of (2) and (2). A lead-free roaster having an exhaust gas cooling structure in which an upper portion of the gas is divided into inner and outer parts, and an exhaust gas suction hole is formed in the exhaust gas suction flow path of the inner part and an outside air suction port is formed in the external air suction flow path of the outer part. The top ring is provided so as to be freely detachable above the suction space, and is disposed above the pole between the inner circumferential surface of the opening of the table and the upper portion of the inner case. While being arranged outside the inner circumferential annular wall part and the inner circumferential annular wall part where the pipe member and the lower end part continuously formed downward from the inner peripheral part of the said pipe member overlap the upper part of the inner case. It has a partition annular wall part which divides the upper part of the said suction space into the inner and outer part which integrated the upper end part to the lower surface of a pipe member, and has several exhaust gas from the upper end part of the inner case in the said inner peripheral annular wall part to an upper part part. By forming a suction hole, the exhaust gas is sucked into the inner part of the suction space from the exhaust gas suction port, and the outside air is sucked into the outer part of the suction space from the outside air suction port formed by providing the top ring. The inner and outer walls of the partition annular wall are vertical to reduce resistance and reduce exhaust gas and outside air. By smoothing the flow and stabilizing the laminar flow of the outside air flowing along the inner wall surface of the outer case, the pipe member, the inner circumferential annular wall portion and the partition annular wall portion are integrated into one part to form a partition ring, which is one member of the top ring. The problem is solved by preventing the exhaust gas from contacting the outside from the shape wall portion.

Preferably, it has a mounting end part of the outer peripheral part of a top ring, and the drooping wall part continuously formed downward from the inner peripheral edge of the said mounting end, and puts the lower end part of an aircraft drooping wall part in the outer case in the installation state, and overlaps it, A plurality of outside air intakes are formed in the drooping wall portion, or the lower end portion of the drooping wall portion is positioned in the outer case and spaced apart from the outer case, so that the gap between the drooping wall portion and the outer case is the outside air intake.

In short, the present invention has an outer case having an upper opening disposed below the table, and an inner case disposed inside the outer case, and the upper portion of the suction space formed between the outer case and the inner case is formed inside and outside. Of the above-mentioned suction space for a lead-free roaster having an exhaust gas cooling structure in which the suction hole of the exhaust gas is formed in the exhaust gas suction flow path of the inner part and the outside air suction port is formed in the outer air suction flow path of the outer part. A top ring provided to be detachably freely provided thereon, the lower end portion continuously formed downward from an inner circumference of the pipe member and a pipe member placed above the pole between the inner circumferential surface of the opening of the table and the upper portion of the inner case. The inner circumferential annular wall portion overlapping the upper end portion of the inner case, and the upper end of the inner circumferential annular wall portion The lower part of the pipe member has an integral ring and a partition annular wall portion for dividing the upper portion of the suction space into inner and outer portions, and a plurality of exhaust gas suctions from the upper end portion of the inner case in the inner circumferential annular wall portion to the upper portion. Since the top ring is installed in a lead-free roaster provided with an outer casing with a gap between the tables, the gap between the top ring and the upper casing of the outer casing becomes an outside air suction port, and the inner and outer circumferential surfaces of the partition annular wall portion Since it is vertical in shape and flows smoothly because the inflow resistance of the exhaust gas from the inside and the outside of the table is low from the outside, the static pressure of the top ring itself according to the present invention is lowered, and as a result, the load of the exhaust fan is reduced. Energy consumption, and oils and fats sucked into the suction flow path from the exhaust gas suction hole, The exhaust gas containing the oil mist does not contact the inner surface of the outside air suction flow path including the inner wall surface of the outer case by the partition annular wall portion, and the outside air sucked into the suction flow path from the outside air suction port forms an inner wall surface of the outer case. Therefore, since the flow flows and the resistance of the partition annular wall portion is small, the flow of outside air along the inner wall surface of the outer case can be more reliably formed, so that a stable laminar flow can be formed. As a result, the range of not directly contacting the inner wall surface of the outer case is widened, and the contamination of the inner wall surface of the outer case is extremely small compared with the conventional one, and as a result, the temperature rise of the outer case can be suppressed and exhaust gas Oils and fats contained therein are attached to the inner wall surface of the partition annular wall portion in the top ring to be cleaned regularly. In addition, from the lower end of the partition annular wall portion on the inner wall surface of the outer case, a small amount of oils and the like adhering to the lower portion as well as the upper portion is suppressed in a very small amount, and the amount of oil retained in the exhaust path in the lead-free roaster is extremely small. Because it can be suppressed, for example, a bonfire phenomenon occurs and the inhaled fire is turned off before contact with the holding oil in the exhaust path, thereby preventing the occurrence of a duct fire, and thus, such as a fire damper during operation. Emergency stop due to the operation of the safety device can be avoided as much as possible, and a wide space for agitating the exhaust gas and the outside air can be secured. It can be provided with a thickening and dilution effect.

Therefore, the main cause of the fire is eliminated, it is possible to further provide a fire protection effect.

In addition, since most of the oil-containing oils and the like contained in the exhaust gas adhere to the top ring according to the present invention, specifically, the partition annular wall portion, the adhesion to the inner surface of the outside air suction flow path including the inner wall surface of the outer case can be suppressed. Since the cleaning operation can be performed more simply, and the inner circumferential annular wall portion and the partition annular wall portion do not have a large step portion or inclined portion in the middle portion, the cleaning operation of the top ring itself according to the present invention is also performed more simply. can do.

And since the flow of outside air is formed smoothly along the partition annular wall part compared with the past, when a mounting ring is provided in the opening part of a table to the inner wall surface of an outer case, and a top ring is installed, it exhausts to a mounting ring. The amount of adhered oils and the like contained in the gas can be reduced, and the amount of oils and the like adhering to the downward portion from the lower end of the partition annular wall in the inner wall of the outer case can be suppressed in a very small amount. Therefore, since the burden of cleaning the inner wall of the outer case which is deep and poor in cleaning property is greatly reduced, generally, the frequency of cleaning the mounting ring fixed to the table or the inner wall of the outer case is reduced or the frequency of cleaning is maintained as it is. Even if it does, the removal operation | work of containing fats and oils at the time of cleaning can be made easy.

In addition, since the pipe member, the inner circumferential annular wall portion and the partition annular wall portion are integral, the rigidity of the top ring itself is improved and it is difficult to deform, and since the number of parts after separation is only one, it is easy to manage and stack. In addition, storage performance can be improved, and production cost can be reduced by improving productivity.

Since the partition annular wall is positioned toward the outer circumference of the pipe member, the partition is narrowed between the annular wall and the outer case, so that a stable laminar flow of outside air is made to more reliably flow the outside air along the inner wall surface of the outer case. can do.

Since a plurality of outside air suction ports are formed in the outer peripheral side portion from the partition annular wall portion in the pipe member, the lead-free roaster in which such a top ring is provided without the outer case with respect to the table is interposed with the outer case with respect to the table. In addition, when the gap between the table and the outer case is attached to the lead-free roaster closed by the mounting ring, the same effect as the invention according to claim 1 is achieved, while the outside air suction flow path is opened. Since it passes through the whole up and down direction, the stable laminar flow of external air which made the flow of external air along the inner wall surface of the outer case more reliable can be formed.

Since a drooping wall portion was formed toward the outer circumferential side of the pipe member, and the partition annular wall portion of the pipe member was formed with a portion between the drooping wall portion or a plurality of outside air suction ports in the drooping wall portion. When the top ring is installed on a lead-free roaster provided with an outer case spaced apart from the table, the same effect as that of the invention according to claim 1 is achieved. When the outside air suction port is formed in the pipe member, the outside air above the table is When the suction port is formed in the drooping member, it is possible to suck the outside air under the table, respectively, and at the same time, since the gap between the top ring and the upper end of the outer case can be closed by the drooping member, a plurality of outside air suction ports are provided in the drooping wall. The type formed with the air can suck outside air from the outside air suction port having a narrow opening area from the gap. , It is possible to maintain the suction amount of the exhaust gas by the combination of the shape of the exhaust gas suction hole without raising the output of the exhaust fan, size and number of holes in a suitable amount, because.

In the mounting ring for the top ring according to claim 1, the lower end portion is located in the outer case in the mounting shape continuously formed downward from the inner peripheral portion of the outer peripheral portion of the top ring and the inner peripheral portion of the upper end portion. The overlapping drooping wall portion is provided with a plurality of external air suction openings in the drooping wall portion, or as a mounting ring for the top ring according to claim 1, wherein the placing end of the outer circumferential portion of the top ring and the inner circumferential edge of the placing end are downward. Since the lower end part was located in the outer case in the installation state which was continuously formed, and had the drooping wall part separated from the outer case, and the clearance gap between the drooping wall part and the outer case was made into the outside air suction port, such a location is shown. When the ring is installed on a lead-free roaster provided with an outer case spaced apart from the table, and the top ring of claim 1 is installed, claim 1 To exert the same effect as the invention in accordance with the other hand, it is possible to draw the outside air in the table below.

In addition, according to the mounting ring of claim 4, since the outside air can be sucked from the narrowed outside air intake port from the point that the gap between the top ring and the upper end of the outer case can be closed, the exhaust gas suction hole can be increased without increasing the output of the exhaust fan. The suction amount of the exhaust gas from can be maintained at an appropriate amount.

According to the mounting ring of claim 5, the gap between the top ring and the upper part of the outer case is closed to some extent so that the outside air is narrowed between the upper part of the outer case and the lower part of the drooping wall part and directed downward, so as to be in the outer part of the suction space. Due to the suction, compared with the lead-free roaster of the type between the top ring and the upper end of the outer case as the outside air suction port, it is possible to form a stable laminar flow of the outside air which makes the flow of the outside air more securely along the inner wall surface of the outer case. .

Moreover, in the lead-free roaster with the exhaust gas cooling structure using the top ring which concerns on this invention, the type which draw | induces the outside air from the upper side of the table is the outside air which the seasoning liquid, the toothpick, the juice which fell from the to-be-cooked object etc. which overflowed accidentally overflowed. Although it is impossible to deny the possibility of being sucked from the suction port, the type of suctioning the outside air from the lower side of the table can eliminate the above possibility completely, and its practical effect is very large.

1 is a plan view of a top ring according to the present invention (Example 1)
Figure 2 is a front view of Figure 1;
3 is an enlarged sectional view taken along AA of FIG. 1.
4 is a cross-sectional view of the lead-free roaster using the top ring of FIG. 1.
Fig. 5 is a sectional view of the lead-free roaster using the top ring of Example 1 in which the pipe member is flat.
6 is an enlarged view of a main part of FIG. 4;
7 is an enlarged view of a main part of FIG. 5;
8 is a plan view of a top ring according to the present invention (Example 2)
9 is a longitudinal cross-sectional view of FIG. 8;
10 is a cross-sectional view of the lead-free roaster using the top ring of FIGS. 8 and 9.
Fig. 11 is a front view of the top ring of the third embodiment in which an outside air suction port is formed in a pipe portion;
12 is a longitudinal cross-sectional view of FIG. 11;
Fig. 13 is a front view of the top ring of the third embodiment in which an outside air suction port is formed in the drooping member.
14 is a longitudinal cross-sectional view of FIG. 13.
Fig. 15 is a central longitudinal sectional view of the mounting ring for the top ring of the second embodiment in which an outside air suction port is formed in the drooping wall;
Fig. 16 is a central longitudinal sectional view of the mounting ring for the top ring of the second embodiment with the mounting end widened;
Fig. 17A is a sectional view of the lead-free roaster using the top rings of Figs. 11 and 12;
Fig. 17B is a sectional view of the lead-free roaster using the top rings of Figs. 13 and 14;
Fig. 18A is a sectional view of the lead-free roaster using the mounting ring of Fig. 15 and the top ring of the second embodiment.
Fig. 18B is a sectional view of the lead-free roaster using the mounting ring of Fig. 16 and the top ring of the second embodiment.
Fig. 19 (a) is a cross-sectional view of the lead-free roaster of Fig. 17 (a), using a top ring having an outside air suction port formed at a polymerization site with an outer case;
Fig. 19 (b) is a cross-sectional view of the lead-free roaster of Fig. 18 (a), using a top ring having an outside air suction port formed at a polymerization site with an outer case;
20 (a) is an essential part cross sectional view showing a state in which a top ring of a lead-free roaster with a table and an outer case installed without gaps is removed;
20 (b) is an essential part cross sectional view showing a state in which the top ring of the lead-free roaster in which the table and the outer case are provided with the gap and the outer case and the table are closed by tact rings;
20 (c) is an enlarged view of an essential part showing a state where the top ring of a lead-free roaster provided with a table and an outer case disposed between them is detached.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described according to drawing.

In the top ring according to the present invention, basically, an annular plate-shaped pipe member 1, an inner circumferential annular wall portion 2 continuously formed downward from an inner circumferential edge of the pipe member 1, It has a partition annular wall part 3 which arrange | positioned outside the said inner peripheral annular wall part 2, and integrated the upper end part into the lower surface of the pipe member 1, and is located in the upper part of the said inner peripheral annular wall part 2. A plurality of exhaust gas suction holes 4, 4a...

Moreover, in the lead-free roaster which mounts the said top ring, as shown to FIG. 20 (a)-(c), the outer case 8 of the upper opening shape is arrange | positioned fundamentally under the table 7 simultaneously, The upper end of the outer case 8 is disposed in the opening 9 of the table 7, and the inner case 10 of the upper opening shape is disposed inside the outer case 8, so that the outer case 8 and the inside of the outer case 8 are disposed. A suction space 11 is formed between the cases 10, the heating part 12 is disposed in the inner case 10, and a grilling net, a roaster, or the like is disposed above the heating part 12. Wit cooking means 13 is arranged.

Specifically, as shown in FIG. 20 (a), the outer case 8 is provided in the table 7 without gaps, or as shown in FIG. 20 (b), the outside of the table 7 is external. The case 8 is provided with the gap between them, and the gap between the table 7 and the upper end of the outer case 8 is closed with the mounting ring 14, or as shown in Fig. 20 (c). And a form provided with a gap between the table 7 and the outer case 8, and the forms shown in FIGS. 20A and 20C are the table 7 and the outer case 8 as necessary. The mounting ring 21 which does not close the clearance gap between the upper ends of is attached.

In the top ring, the gap between the inner circumferential surface of the opening 9 in the table 7 and the upper portion of the inner case 10 is closed. In the pipe member 1, the suction space 11 is closed. In the upper part of the inner circumferential annular wall part 2, it overlaps so that the lower end part may be located inside the upper part part of the inner case 10, and in the partition annular wall part 3, The upper part in the suction space 11 is divided into the exhaust gas suction flow path 11a on the inner side and the outside air suction flow path 11b on the outer side, and the exhaust gas suction holes 4, 4a,. It is formed in the upper part from the upper end of the case 10, enables exhaust gas to be sucked in the exhaust gas suction flow path 11a, and when the said top ring is provided, the outside air suction port 5 is formed in the outside air suction flow path 11b. And the outside air in the outside air suction flow path 11b by the outside air suction port 5. It is possible to suck.

&Lt; Example 1 >

1 to 3 are plan views, front views, and AA sectional views of the first embodiment of the top ring for a lead-free roaster according to the present invention. In this top ring, the pipe member 1, the inner circumferential annular wall portion 2, and the partition annular shape are shown. It has the wall part 3, and forms the some exhaust gas suction hole 4, 4a ... from the upper end part of the inner case 10 of the inner peripheral annular wall part 2 in the installation state, A plurality of outside air suction ports 5, 5a, ... are formed in the outer circumferential side portion from the partition annular wall 3 in the pipe member 1, and a seating wall is formed in the outer circumferential portion of the pipe member 1. (着 座 壁, 6) is formed by hanging down.

1 to 4 and 6, the outer circumferential portion 1a is formed in a horizontal shape, and the inner circumferential portion 1b is inclined inwardly and upwardly. It forms, or is formed in flat form as shown to FIG. 5,7.

Moreover, it is preferable to make the position of the said partition annular wall part 3 into the outer peripheral part of the said pipe member 1, and to narrow the gap between this partition annular wall part 3 and the outer case 8 to some extent. .

6 and 7 are enlarged cross-sectional views of the main part of the lead-free roaster provided with the top ring according to the present invention, and the inner circumferential surface of the opening 9 in the table 7 of the lead-free roaster shown in FIG. The gap between the upper part of the inner case 10 is closed, and it is set as the lead-free roaster with the cooling structure of the structure shown to FIG. 6, 7, and the partition annular wall part 3 makes it the suction space 11 The upper portion is divided into an exhaust gas suction flow path 11a on the inner side and an outside air suction flow path 11b on the outer side, and exhaust gas is discharged into the exhaust gas suction flow path 11a from the exhaust gas suction holes 4, 4a. The outside air can be sucked from the outside air suction ports 5, 5a ... into the outside air suction flow path 11b, respectively.

The top ring seats the seating wall 6 on the mounting end 15 in the mounting ring 14 in which the seating wall 6 is placed in the opening 9 of the table 7. 15A, 15B are provided so that the lower end part of the drooping wall part 16 continuously formed in the inner peripheral part may be overlapped so that it may be located in the upper part part of the outer case 8. As shown in FIG.

<Example 2>

8 and 9 are a plan view and a central longitudinal cross-sectional view of a second embodiment of the top ring according to the present invention, and FIG. 10 is a sectional view of the lead-free roaster using the top ring of FIGS. 8 and 9, the same as the first embodiment, the pipe member 1 , The inner circumferential annular wall portion (2), the partition annular wall portion (3), the exhaust gas suction holes (4, 4a ...) and the seating wall (6), and the outside air suction ports (5, 5a) in the pipe member (1). ...) is not formed.

And this top ring is a lead-free roaster of the type which draws in outside air from below the table 7, specifically, as shown in FIG.20 (c), the clearance gap is between the table 7 and the outer case 8. As shown in FIG. And a lead-free roaster without a mounting ring 14 that closes between the table 7 and the outer case 8, and has a lead-free roaster with an exhaust gas cooling structure having the structure shown in FIG.

<Example 3>

11 and 12 are front views and center longitudinal cross-sectional views of the top ring of the third embodiment in which the outside air suction port is formed in the pipe portion, and FIGS. 13 and 14 are front views of the top ring of the third embodiment in which the external air suction port is formed in the drooping wall. And a central longitudinal cross-sectional view, wherein the pipe member 1, the inner circumferential annular wall portion 2, the partition annular wall portion 3, the exhaust gas suction holes 4, 4a, and the seating wall are the same as those of the first and second embodiments. 6), the lower part is integrally formed in the outer peripheral part of the lower surface of the to-be-connected member 1 in the outer case, and the overlapping wall part 17 overlaps, and is shown to FIG. 11, 12, A plurality of outside air suction ports 5, 5a ... are formed between the partition annular wall portion 3 and the drooping wall portion 17 in the pipe member 1, or as shown in Figs. 13 and 14, the drooping wall portion ( The plurality of outside air suction ports 5 and 5a from the upper end of the outer case 8 in the installation state in the upper part 17 to an upper portion. ) It has formed.

And as shown in FIG.20 (c), this top ring has the gap between the table 7 and the outer case 8, and the mounting ring 14 which closes between the table 7 and the outer case 8 is shown. ) Is installed in a smokeless roaster without an exhaust gas cooling structure, and has an exhaust gas cooling structure smokeless roaster having a structure shown in FIGS. 17A and 17B.

<Example 4>

15 and 16 are sectional views of the mounting ring for the top ring of the second embodiment, and are basically the same as those of the mounting ring 14, and the mounting ring 14a shown in FIG. A plurality of outside air suction openings (15a) and the drooping wall portion 16a which are the same as the wall portion 16, and are located in the upper portion from the upper end of the outer case 8 in the installation state of the drooping wall portion 16a ( 5, 5a ...), and the mounting ring 14b shown in FIG. 16 has a mounting end 15, the mounting end 15b similar to the drooping wall 16, and the drooping wall 16b, The drooping wall part The width D of the mounting ends 15 and 15a of the mounting rings 14 and 14a is set so that the width DI of the mounting ends 15b is spaced apart from the outer case 8 in the installed state. Further, the gap between the outer case 8 and the drooping wall portion 16b is used as the outside air suction port 5.

And this mounting ring 14a, 14b is installed in the lead-free roaster shown in FIG. 20 (c), and the top ring of Example 2 is provided, and the exhaust gas of the structure shown in FIG. 18 (a), (b) is provided. A lead-free roaster with a cooling structure is used.

On the other hand, when the outside air suction ports 5, 5a ... in Figs. 17 (b) and 18 (a) are formed at the polymerization site with the outer case 8, they are shown in Figs. 19 (a) and (b). As shown, communication holes 20, 20a are formed in corresponding portions of the outer case 8.

On the other hand, the top ring of Example 1 can also be used for the lead-free roaster shown in FIG. 20 (a), and in this case, the opening 9 of the table 7 is closed between the table 7 and the outer case 8. A top ring is installed without a mounting ring 21, or the outer circumference of the top ring is seated on the upper surface of the table 7 without using the mounting ring 21. Also, FIGS. 17 (a) and 17 ( b) In 19 (a), although the mounting ring 21 which does not close between the table 7 and the outer case 8 is provided in the opening 9 of the table 7, the mounting ring 21 is provided. The outer peripheral portion of the top ring may be seated on the upper surface of the table 7 without using a.

In addition, in the drawing, the outside air suction ports 5, 5a... Formed in the exhaust gas suction holes 4, 4a..., The pipe member 1, the drooping wall portion 17, or the drooping wall portion 16a of the mounting ring 14a. ) Is a rectangular shape, and is not limited to this shape, and may be, for example, a round shape or a vertically long slit shape.

Next, the operation of the lead-free roaster using the top ring according to the present invention will be described.

Due to the suction force acting on the exhaust duct (not shown), a plurality of lead-free roasters shown in FIGS. 6, 7, 17 (a), 17 (b), 18 (a), 19 (a) and 19 (b) In the lead-free roaster shown in FIG. 10 from the outside air suction ports 5 and 5a, the outside air suction flow path 11b is formed from the outside air suction port 5 formed between the top ring and the upper end of the outer case 8. In the lead-free roaster shown in Fig. 18B, outside air is drawn in the outside air suction flow path 11b from the outside air suction port 5 formed between the outer case 8 and the drooping wall portion 16b, and is drawn downstream. From the point flowing along the inner wall surface of the case 8, the laminar flow of outside air is formed between the outer case 8 and the exhaust gas of the high temperature state from the exhaust gas suction flow path 11a, and the exhaust gas suction hole 4 , 4a..., The exhaust gas flowing into the exhaust gas suction flow path 11a is formed in the outer case 8. The inner wall surface of the outer case 8 and the oils and fats contained in exhaust gas in the mounting rings 14, 14a, 14b, 21 are not contacted with the inner wall surface, the mounting rings 14, 14a, 14b, 21, etc. Without this attachment, the outer case 8 does not overheat.

That is, the oils and fats contained in exhaust gas adhere to the inner wall surface of the partition annular wall part 3 in the top ring which concerns on this invention which routinely cleans, and the inner and outer wall surfaces of the partition annular wall part 3 are It is vertical and smoothly flows because the resistance of the exhaust gas which flowed into the exhaust gas suction flow path 11a and the outside air which flowed into the outside air suction flow path 11b are small.

In the passage of the exhaust path, since the oil mist is liquefied because the exhaust gas in the high temperature state is mixed with the low temperature outside air to lower the temperature, a holding adsorbent (not shown) disposed in the exhaust flow path. It is efficiently collected by a grease filter (not shown) or the like.

1: pipe member 2: inner circumferential annular wall portion
3: partition annular wall part 4, 4a: exhaust gas suction hole
5, 5a: outside air suction port 7: table
8: outer case 9: opening
10: inner case 11: suction space
14a, 14b: mounting ring 16a, 16b: drooping wall part
17: drooping wall part D1: width of placing end

Claims (1)

The upper part of the suction space formed between the outer case and the inner case which has an outer case which has an upper opening arrange | positioned under the table, and an inner case which was arrange | positioned inside the said outer case, is used as an inner and outer part. Above the suction space, for a lead-free roaster having an exhaust gas cooling structure in which an exhaust gas suction hole is formed in the exhaust gas suction flow path in the inner part and an outside air suction port is formed in the outer air suction flow path in the outer part. As a top ring installed so that detachment is possible freely,
A pipe member disposed above the inner circumferential surface of the opening of the table and the upper pole of the inner case, an inner circumferential annular wall portion having a lower end portion formed continuously downward from the inner circumferential edge of the pipe member overlapping the upper end portion of the inner case; It has a partition annular wall part which divides the upper part of the said suction space into the inner and outer parts which arrange | positioned outside the said inner peripheral annular wall part, and integrated the upper end part into the lower surface of a pipe member, and in the said inner peripheral annular wall part A top ring mounting ring for a lead-free roaster having an exhaust gas cooling structure in which a plurality of exhaust gas suction holes are formed at an upper portion from an upper end of an inner case,
It has a mounting end part of the outer periphery part of a top ring, and the drooping wall part continuously formed downward from the inner peripheral edge of the said mounting end part, The lower end part of the said drooping wall part is located in an outer case in an installation state, and it overlaps, and the said drooping wall part has a plurality Exhaust air cooling characterized in that the outside air inlet is formed or the lower portion of the drooping wall portion is positioned in the outer case and is spaced apart from the outer case so that the gap between the drooping wall portion and the outer case is the outside air inlet. Mounting ring of top ring for roaster with structure.

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