JPH11211173A - Hood for sucking and evacuating steam - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent water from adhering to and remaining at a duct by using a hood for ventilation to evacuate steam and eliminating the water. SOLUTION: With a hood A, an upper-level adjustment plate 13 and a lower- level adjustment plate 17 are arranged back and forth in a hood case 1, a zigzag exhaust port 22 for forced flex passage of steam for causing baffle operation is provided between the adjustment plates 13 and 17 and between the lower-level adjustment plate 17 and a drain groove 9 of the hood case 1, the steam is guided by a suction pressure at the side of a dust 23, and water in the steam is captured and eliminated by the baffle operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hood for a local ventilation system, and more particularly to a hood for a steam suction / discharge system which is installed above a steam generating source, for example, in a kitchen or a food factory, and is used to suction and discharge steam. About.

[0002]

2. Description of the Related Art A hood installed above a steam generating source in a kitchen or a food factory such as a commercial dishwasher, a cooking pot, a steam oven, a noodle boiler, a yuba making machine, etc. A bottom-open box-shaped canopy with holes is generally used. Steam is received by the canopy, and is sucked into the duct through the Gucto hole by the rotation of a fan installed at an outlet such as a building wall. And
It is supposed to be discharged outside through the outlet.

[0003]

However, in this case, however,
Steam is supposed to be sucked into Gukto in a saturated state or a state of containing water near it, and discharged outside, so that when steam passes through Gukto,
As a result of the moisture remaining in the duct, it causes rust and corrosion of gukto, which impairs its durability and causes mold in the duct, which impairs the sanitary environment of kitchens and food factories. Often do.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to solve the problem by preventing and adhering moisture in a duct by capturing and removing moisture in steam as much as possible. To provide a steam suction / discharge hood.

[0005]

SUMMARY OF THE INVENTION In accordance with the above-mentioned object, the present invention provides a method for producing steam containing water at or near a saturation state.
When the air is sucked by the suction force of the fan and discharged into the duct, suction condensation is performed in the hood toward the upper side of the steam, and the steam collides with the inclined surface so that moisture in the steam can be captured and removed, and zigzag. The baffle effect by forcibly bending and passing the steam-like steam outlet allows trapping / removal of moisture in the steam. A bottom-open box-shaped hood case in which a duct hole is provided with a drainage groove at the lower end inner periphery or at the lower front and rear inner sides, and a front-rear sloping front surface inclined downward from the upper center of the hood case toward the drainage groove. The upper and lower upper adjustment plates and lower adjustment plates are respectively disposed at the top and bottom in the hood case so as to form an intermediate position between the upper adjustment plate and the lower adjustment plate. A steam suction / discharge hood, comprising a lower adjustment plate and zigzag-shaped front and rear steam discharge ports disposed at lower end positions between the drain grooves, respectively. In addition, the steam outlet at the intermediate position is connected to the steam outlet before and after the intermediate position between the upper adjustment plate and the lower adjustment plate so that the steam outlet at the intermediate position can be easily configured by ensuring the baffle action. The zigzag shape is formed by arranging end fins bent in the vertical direction at the lower end of the adjustment plate and the upper end of the lower adjustment plate in a front-rear overlapping manner. In addition to the above, the invention according to claim 3 is provided with at least the front and rear of the hood case so that the hood can be easily cleaned. 3. The steam suction / discharge hood according to claim 1 or 2, wherein the position adjusting plate is disposed so as to be rotatable back and forth or detachable with respect to the hood case, respectively. The gist of the invention is to solve the problem.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the drawings, in which A is a hood.
Is made of metal, particularly, for example, stainless steel, having the hood case 1, the upper adjustment plate 13 and the lower adjustment plate 17, and the steam discharge ports 22 at the intermediate position and the lower end position.

The hood case 1 has a bottom open box shape in which a duct hole 3 for sucking a duct is provided on an upper surface and a drain groove 9 is provided on an inner periphery of a lower end, respectively. , Made of stainless steel, top plate 2,
It is a rectangular flat plate having a front plate 5, a back plate 6, and right and left side plates 7, and the duct hole 3 is arranged at the center position of the top plate 2, that is, at the intersection of diagonal lines, according to the duct shape. The lower end of the front plate 5, the rear plate 6, and the left and right side plates 7 are bent inward and upward while being arranged in a rectangular shape such as a circle or a rectangle, thereby forming a series of U-shaped sections on the inner periphery of the lower end. The drain 9 is provided.

The upper adjustment plate 13 and the lower adjustment plate 17 are arranged vertically inside the hood case 1 so as to form a downwardly expanding front and rear inclined surface from the upper central position of the hood case 1 toward the drain groove 9. In this example, the upper and lower adjustment plates 13 and 17 are also made of stainless steel and are bent as necessary using a flat plate. Upper adjustment plate 13
Is formed as a single unitary member in front and rear through the central horizontal portion 14 by arranging them in front of and below the central horizontal portion 14 with a predetermined inclination and facing downward. 1, the center horizontal portion 14 welds the inner surface of the left and right side plates 7 to the inner surfaces of the left and right side plates 7, respectively, for example, by stud welding. It is performed by erection and fixing between the side plates 7 so as not to be blocked.

On the other hand, the lower adjusting plate 17 is disposed opposite to the upper adjusting plate 13 so as to be inclined downward and forward and backward below the upper adjusting plate 13 so that the separate lower and upper adjusting plates 17 have the same gradient as the upper adjusting plate 13. , Together with the upper adjustment plate 13, forms a downwardly expanding front and rear inclined surface.

The front and rear lower adjustment plates 17 are arranged on the hood case 1 so as to be rotatable back and forth with respect to the hood case 1, respectively. Is to rotatably support the lower end of the lower adjustment plate 17 at the lower end of the inner surface of the side plate 7 by means of a support shaft and a bearing, and to support the upper end of the lower adjustment plate 17 at the lower end of the upper adjustment plate 13 so as to be freely detachable. At this time, the above-mentioned pivot support of the present example is provided on the turning pieces 19 on both side ends of the lower adjustment plate 17, on the bearing 20 having a long hole in the longitudinal direction, and on the side plate 7.
The short protruding support shaft 8 welded and fixed to the inner surface is slidably inserted into the support shaft 8, while the hooking support is provided on the lower adjustment plate 17 by an upwardly inclined locking portion 16 bent at the lower end on both sides of the upper adjustment plate 13. By hooking and supporting the L-shaped hook portions 21 welded and fixed to the upper ends on both sides, it is performed by being erected and fixed between the side plates 7 as described above.
Is slidably rotated at the shaft support portion, and the L-shaped hook portion 21 is disengaged from the locking portion 16 so as to be suspended below the hood case 1 or the hood case 1 Is turned over so as to be placed on the drain groove 9 of the side plate 7 at the position shown in FIG.
The hood A including the rear surface of the hood and the inner surface of the hood case 1 can be easily cleaned.

The steam discharge port 22 is connected to the upper adjusting plate 1.
3 and a lower end position between the lower adjustment plate 17 and the drain groove 9, respectively, in a zigzag front and rear position.
Steam outlet 22 at an intermediate position between 3 and lower adjustment plate 17
Are formed on the lower end of the upper adjustment plate 13 and the upper end of the lower adjustment plate 17, respectively.
5 and 18 are formed in a zigzag shape by arranging them back and forth in a zigzag manner, and the lower adjusting plate 17 and the steam outlet 21 at the lower end position between the drain grooves 9 in this example are connected to the lower An end fin 18 bent downward at the lower end of the adjusting plate 17 is formed in a zigzag shape by arranging the rising and falling fins 10 of the drainage groove 9 in a front-to-back and spaced-apart or eccentric manner. is there.

In the present embodiment, the steam outlet 22 at the intermediate position is located outside the upper side of the upper adjustment plate 13 inside the hood case 1.
The upper and lower adjustment plates 13 and 17 are arranged so that the lower adjustment plate 17 is located inside, respectively.
After turning steam down in the middle of
The upper and lower adjustment plate 1 is formed in a zigzag shape by forcibly passing the vehicle so as to turn further upward.
A series of slits or grooves between 3, 3 and 17, and the steam discharge port 22 at the lower end position is also provided with the lower adjustment plate 17 on the outside in the hood case 1 and the rising fin 10 of the drain groove 9 on the inside. At the lower end of the hood case 1, the lower adjustment plate 17 and the drainage groove 9 are disposed so as to be located at the same time, while the end fins 18 and the rising fins 10 are arranged in the front-rear skewed position. After the direction change, a series of slits or grooves between the lower adjustment plate 17 and the drainage groove 9 are formed in the same zigzag shape by forcibly bending and passing so as to turn further upward.

In the figure, reference numeral 4 denotes a duct connecting portion fitted and connected to a duct provided at the position of the duct hole 3 of the hood case 1;
In this example, the drainage groove 9 is formed on the inner periphery of the lower end of the hood case 1 so that the drainage nipple,
Reference numeral 2 denotes a ceiling mounting bracket of the hood A provided at the four corners of the top plate 2 of the hood case 1.

The hood A of this embodiment having the above configuration is installed on the ceiling above the steam generating source by the bracket 12, the duct hole 3 is communicated with the duct 23, and the hood A is installed at the outlet of the building wall or the like. It is used as a steam suction and discharge device that discharges steam from the discharge port to the outside by suctioning by rotation of a fan (not shown). At this time, the steam from the steam source is supplied to the hood A by the suction force of the fan. While being guided into
The front and rear upper adjustment plates 13 are the above-mentioned unitary single member, the upper end of which is closed, and the upper and lower adjustment plates 13 and 17 form a downwardly expanding front and rear inclined surface. Because of the cross-sectional shape, the steam is sucked and condensed in the hood A, so that the steam collides with the inclined surface to capture and remove the moisture in the steam and to remove the zigzag-shaped steam outlets 22.
Are forcibly bent through the adjusting plates 13 and 17
At this time, the suction pressure is reduced so as to release the condensation pressure. As a result, the baffle action is effective against the steam at the time of the suction condensation in the hood A and the forced bending of the steam discharge port 22. And the moisture in or near the saturated state is trapped and removed in the hood A, particularly in the upper and lower adjusting plates 13 and 17 through the steam discharge port 22, and the steam becomes air at room temperature or in a state close to the room temperature, and the duct becomes air. As a result of being sucked into the duct 23 through the hole 3, adhesion of moisture to the duct 23 is prevented from remaining.

Although the illustrated example is as described above, the steam outlets before and after the intermediate position between the upper and lower adjustment plates are formed in a superimposed front and rear direction with the upper and lower adjustment plate ends being inclined, and provided in these. The end fin is formed in a zigzag shape in which the steam is forcibly bent and passed through by making the end fins deviate longitudinally in the same manner as the steam outlet at the lower end position in the above example. When the steam outlet is zigzag, one or both end fins shall be plural between the upper and lower adjustment plates or between the lower adjustment plate and the drain,
In order to increase the bending frequency of the forced bending of steam, the upper and lower adjustment plates are fixedly disposed on the hood case by the welding, and the lower adjustment plate is rotated by the rotation. Instead of a flexible one, it can be removed freely by pin support, screw fixing, etc.
At this time, if necessary, the arrangement of the higher-order adjustment plate is also made detachable, and the upper-order adjustment plate is formed in an inverted V-shape, and the upper end is similarly closed as a single member integrated in front and rear. Arranged above the food case, especially at the upper end, so as not to block the duct hole. In carrying out the present invention, the concrete materials, shapes and structures of the hood case, the upper adjustment plate, the lower adjustment plate, the air discharge groove, the end fin used as necessary, The relationship, addition to these, and the like can be of various forms without departing from the gist of the invention.

[0016]

As described above, the present invention is constructed as described above. According to the first aspect of the present invention, the steam containing the water in a saturated state or near the same state is sucked by the suction force of the fan and discharged to the duct. In doing so, suction condensation is performed upward of the steam, and the steam collides with the inclined surface to enable the capture and removal of moisture in the steam and forcibly bend through the zigzag-shaped steam outlet. A steam suction / discharge hood that can capture and remove moisture in steam as much as possible by the baffle function and can prevent moisture from adhering and remaining in the duct can be provided. In addition to the above, the steam outlet at the intermediate position is designed to be able to easily configure by ensuring the baffle action. Also, in addition to the above, it can be assumed that as can easily perform cleaning of the hood.

[Brief description of the drawings]

FIG. 1 is a perspective view of a hood with a left side plate removed on one side.

FIG. 2 is a vertical sectional view of a central portion of a hood.

FIG. 3 is a longitudinal sectional view of a hood showing a state of induced discharge of steam.

[Explanation of symbols]

 A Hood 1 Hood case 9 Drainage groove 13 Upper adjustment plate 15 End fin 17 Lower adjustment plate 18 End fin 22 Steam outlet

Claims (3)

[Claims] 1. A bottom-open box-shaped hood case having a gucto suction hole on an upper surface thereof and a drainage groove on an inner periphery of a lower end or a front and rear inner side of the lower end, and the drainage groove from a central upper position of the hood case. The upper and lower upper adjustment plates and lower adjustment plates disposed at the top and bottom in the hood case so as to form a front-rear sloping surface extending downward, and an intermediate position and lower adjustment between the upper and lower adjustment plates. A steam suction / discharge hood, comprising: a plate; and zigzag-shaped front and rear steam discharge ports disposed at lower end positions between the drain grooves. 2. An end fin, which is formed by bending a steam discharge port at an intermediate position between the upper adjustment plate and the lower adjustment plate at the lower end of the upper adjustment plate and at the upper end of the lower adjustment plate in the vertical direction, is separated from each other. 2. The steam suction / discharge hood according to claim 1, wherein the hood is formed in a zigzag shape by being arranged in a superposed state. 3. The hood case according to claim 1, wherein at least the front and rear lower adjustment plates are disposed on the hood case so as to be rotatable back and forth or detachable with respect to the hood case, respectively. A hood for steam suction and discharge according to item 1.