JPS6222642Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to a rectifying device that can uniformly and sufficiently diffuse passing gas and send it out.

(Prior art) As a rectifying device for rectifying the gas pumped from a blower in a heating furnace or the like, for example, the
It is known from Publication No. 46558.

The rectifying device described in this publication is a flat plate with gas blowing holes that partitions the inside of the furnace into upper and lower parts, and rectifies the combustion gas supplied from the ceiling ventilation hole into the lower chamber of the furnace in the same direction and with equal air volume. .

(Problems to be Solved by the Invention) However, the above-mentioned rectifier does not have a sufficient rectifying effect, and the gas passing therethrough has a high pressure in some parts and a low pressure in other parts. Therefore, pressure unevenness occurs in the lower chamber of the furnace, causing a temperature difference in the internal atmosphere.
The object to be heated cannot be soaked at the desired temperature.

(Means for solving the problem) The present invention was proposed in view of the above, and includes a long rectifying member having first guide surfaces facing each other on the left and right sides.
Adjacent flow regulating members are arranged in parallel with a space between the lower ends of the first guide surfaces, and partition members on which second guide surfaces are formed on the left and right sides are arranged at appropriate intervals between the adjacent flow regulating members. , the gap is defined by the lower ends of the opposing first and second guide surfaces to form a vent, which effectively rectifies heated gas in a heating furnace, for example.

(Example) The present invention will be explained below with reference to the illustrated embodiment. A rectifying device 1 according to the present invention has a long rectifying member 2.
and a partition member 3 provided between adjacent flow regulating members 2 when a large number of said flow regulating members 2 are arranged in parallel.
It consists of. The above-mentioned flow regulating member 2 has an inverted V-shaped cross section with opposing first guide surfaces 5, 5 provided so as to be inclined downward from the first apex 4 to the left and right, and the first apex 4 is as shown in the drawing. A narrow plane portion may be provided in the length direction, or there may be no plane portion and an acute angle may be provided. Further, the flow regulating member 2 may have an open expanding lower surface as shown in the drawings, or may have a closed tubular shape with a triangular cross section. Furthermore, although each first guide surface 5 is preferably an inclined surface as described above, it may also be a gently arcuate surface or another curved surface.

On the other hand, although the partition member 3 is short, it has an inverted V-shaped cross section with opposing second guide surfaces 7, 7 provided so as to be inclined downward from the second top portion 6 to the left and right, similar to the above-mentioned flow regulating member 2. , the second top portion 6 may have a narrow plane portion or may have an acute angle. However, when the partition member 3 is provided between the flow regulating members 2, 2 arranged in parallel, the left and right side edges 8 of each of the second guide surfaces 7 are the same as the first guide surfaces 5 of the adjacent flow regulating members 2, 2 facing each other. , 5.

In order to configure the flow straightening device 1 using the above-described flow regulating member 2 and partition member 3, a plurality of flow regulating members 2 are arranged in parallel so as to be substantially parallel. In this case, each of the flow regulating members 2 is arranged so that a gap 9 is formed between the lower ends of the opposing first guide surfaces 5 of the adjacent flow regulating members 2, 2. Next, partition members 3 are arranged at appropriate intervals between adjacent flow regulating members, and each second guide surface 7
The side edges 8 of the first guide surface 5 are brought into close contact with the surface of the first guide surface 5 and fixed by spot welding or the like. When fixing the partition members 3, if a gap is provided between the lower ends of the second guide surfaces 7 of the adjacent partition members 3, a ventilation hole 10 is formed since the space part 9 is separated, and the ventilation hole 1
0 is the opposing first guide surface 5, 5 and the opposing second guide surface.
It is located at the lower end of the inverted quadrangular pyramidal space 11 formed by the guide surfaces 7, 7. Since this inverted quadrangular pyramidal space 11 is formed for each flow regulating member and for each partition member 3, the more flow regulating members and partition members there are, the more there will be.

The rectifying device of the present invention is constructed as described above, and if it is a small-scale device, the rectifying member and the partition member may be assembled in advance and transported to the installation site. However, in the case of a large-scale rectifier, multiple rectifier members and partition members are transported to the installation site in a disassembled state, and the rectifier members are fixed in parallel at the site, and appropriate intervals are placed between adjacent rectifier members. The partition member can be fixed and assembled. In this way, it is not bulky to transport, the size of the vent 10 can be freely set on site, and the most efficient flow rectification effect can be expected.

The rectifying device of the present invention is installed so that the inverted quadrangular pyramidal space 11 opens on the upstream side of the gas to be blown, or in other words, the gas passing therethrough heads toward the vent 10 from the opening of the space 11. When the rectifier is installed in this way, the passing gas is guided by the opposing first guide surfaces 5, 5 and second guide surfaces 7, 7 and flows out from the vent 10, so the direction of gas outflow is always constant. As a result, a rectifying effect can be brought about.

Another embodiment of the partition member 3 shown in FIG.
In the case where a reinforcing material 3' is provided between the lower ends of the guide surface 7,
This is to prevent each of the second guide surfaces 7, 7, which slope down from the second top portion 6 to the left and right, from being curved or changing in width.

A wire, a steel rod, etc. can be used as the reinforcing material 3', and by using the reinforcing material 3', each second guide surface 7 can be maintained at an appropriate angle at all times.

Figure 5 shows the rectifier 1 of the present invention in a continuous heating furnace 21.
This shows the case where it is used.

This continuous heating furnace 21 has an inlet 22 for the material to be heated at one end and an outlet 23 at the other end, and an endless heat-resistant conveyor 25 is movably provided on the upper surface of the hearth 24 . This conveyor 25 is stretched over drums 26 and 26 outside the end of the heating furnace 21 and can run from the inlet 22 to the outlet 23, and the object to be heated placed on the upper surface outside the furnace is transported from the inlet 22 to the outlet 23. It enters the furnace, is sufficiently heated as it passes through the furnace, and is discharged from the outlet 23 to the outside of the furnace.

Fans 27 are provided on the ceiling of the heating furnace 21 at appropriate intervals along the length of the furnace to direct high-temperature gas from a heating source (not shown) provided on the furnace wall toward the conveyor 25, for example. and spray. Inside the heating furnace, a hood 28 that gradually expands downward is provided for each fan 27, and a rectifier 1 is provided at the lower end opening of each hood 28. The rectifying device 1 is provided so that an inverted quadrangular pyramidal space 11 opens toward a fan 27, and each vent 10
is facing conveyor 25. Therefore, the heated gas pumped from above by the fan 27 is sufficiently rectified when passing through the rectifier 1, flows out vertically from each vent 10, and is blown onto the conveyor 25.
The temperature inside the furnace is maintained almost uniformly.

(Effects of the invention) In summary, the present invention provides a rectifying device that has an extremely simple structure but that reliably rectifies the gas passing through it, and all that is required is to appropriately set the size of the numerous vent holes. You can set the velocity of the gas after passing. Furthermore, even if the gas is blown diagonally, since the vent is located at the lower end of the space formed by the inclined guide surface, the gas will flow out in the vertical direction from the guide surface, passing through the vent. The rectification effect is extremely high. Therefore, as described above, it can be used not only in the interior of a heating furnace, but also in a dust collector or any other part, regardless of its size, as long as it rectifies gas.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an exploded perspective view of a flow rectifying member and a partition member, FIG. 2 is a perspective view, FIG. FIG. 5 is a perspective view showing an example, and a schematic vertical sectional view when the rectifying device of the present invention is used in a heating furnace. DESCRIPTION OF SYMBOLS 1... Rectifier, 2... Rectifying member, 3... Partition member, 5... First guide surface, 7... Second guide surface, 9
...Interval part, 10...Vent hole.

Claims (1)

[Scope of utility model registration request] Elongated flow regulating members having first guide surfaces facing each other on the left and right sides are arranged in parallel with a gap between the lower ends of the first guide surfaces of adjacent flow regulating members, and second guide surfaces on the left and right sides. A flow straightening device comprising: partition members having a partition formed thereon arranged at an appropriate interval between adjacent flow straightening members, and a vent opening formed by dividing the space between the lower ends of a first guide surface and a second guide surface facing each other.