JPH06201179A - Gas outlet duct - Google Patents

Abstract

PURPOSE:To provide a gas outlet duct which is easy to manufacture, to set in place, and to remove from its place, takes up but a small space for the setting, and looks pleasing in appearance. CONSTITUTION:Two long core holders 5 are provided, with some space therebetween, on a plane for fixture 1, such as a ceiling, that faces the interior space. In each of the core holders an opening 8 for locking extending longitudinally along the core holder is formed. To a piece of woven or knit fabric of a textile material cores 9 are attached one at the left side and the other at the right side. At least either the core holders 5 or the cores 9 are made of elastic material so that the left and right cores are locked by the core holders 5 at their opening by the use of the elasticity and an air passage 11 is formed between the woven or knit fabric suspended in an arc-shaped curve and the plane for fixture 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to low-temperature working equipment in food processing plants, air conditioning equipment such as general cooling equipment and general heating equipment, and clean air supply equipment in a clean room when blowing out supply gas into a room. It relates to a gas blowing duct used.

[0002]

2. Description of the Related Art Conventionally, in air conditioning equipment such as low-temperature working equipment, general cooling equipment, and general heating equipment in food processing plants, etc., temperature-controlled supply air is blown into the room from the opening of a gas blowing duct, respectively. The room temperature is adjusted to suit the room. The gas blowing duct is used not only for temperature control but also for cleaning the air. For example, a dustproof filter is attached to the opening of the gas blowing duct to improve the cleanliness of the room. There is.

A gas blowing duct generally used for conventional air conditioning or the like is formed into a hollow box body by bending a metal plate, and an air passage is formed by connecting a plurality of the hollow box bodies. In addition, the air outlet is provided on the lower surface or the side surface of the hollow box body.

In this type of gas blowing duct, the base end is connected to a treatment air supply source such as an air conditioner, and clean treatment air adjusted to a predetermined temperature and introduced from the treatment air supply source is hollow. Passing through the air passage in the box,
It is blown out into the room from the bottom or side outlets.

By the way, in the above-mentioned gas blow-out duct, air is blown out only from a predetermined blow-out port, and the effective blow-out area of air cannot be set wide. Therefore, in order to obtain a predetermined air amount, the blowing speed has to be set to a certain speed, and in an extreme case, the blowing speed may exceed 3 m / s, for example. When the blowing speed increases in this way, the temperature distribution in the room becomes uneven. The workers in the room are directly exposed to the wind, causing discomfort and impairing their health. In addition, there is a problem such that dust is rolled up in the room.

Therefore, the present applicant has filed Japanese Patent Application No. 1-17991.
No. 6 proposed a gas blowing duct A formed by forming a woven or knitted fabric made of a fiber material into a hollow cylindrical shape as shown in FIG.

The gas blowing duct A is composed of a duct body 21 made of a woven or knitted fabric, a connecting portion 22 for connecting the duct body 21 to a treated air supply source such as an air conditioner, and the duct body 2
1 is provided with a plurality of straps 23 for fixing the wire 1 to a wire provided in parallel with a mounting surface such as a ceiling, and process air supplied from an air conditioner or the like can be blown out from the entire circumference of the surface of the duct body 21. Therefore, low speed air blowing is possible,
It is possible to solve the above-mentioned various problems such that the air temperature in the entire room can be made substantially uniform, and it is difficult for a worker in the room to be exposed to the wind to cause discomfort.

[0008]

However, the above-mentioned gas blowing duct A has the following problems. The woven or knitted product must be formed into a hollow cylinder, which is troublesome to manufacture. The duct body formed in a hollow cylinder must be supported by a support such as a ceiling while maintaining a predetermined shape, and the work of mounting and removing the duct becomes troublesome. Since the duct has a substantially circular shape, and the duct largely protrudes toward the indoor side, there is a problem that a mounting space is required to a certain extent downward from the ceiling, and the appearance is impaired.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a gas blowing duct which can be easily manufactured, attached and detached, has a small installation space, and is excellent in appearance. To aim.

[0010]

In order to achieve the above object, the gas blowing duct according to the present invention is provided with two elongated core member receivers on a mounting surface facing an indoor space such as a ceiling surface or a wall surface. The core material receivers are provided at intervals, and each of the core material receivers is provided with a locking opening extending in the lengthwise direction thereof, while the core material is formed on each of the right and left sides of the woven or knitted fabric made of a rectangular fiber material. At least one of the core material receiver and the core material is made of an elastic material, and the left and right core materials are elastically locked in the opening of the core material receiver and suspended in an arc shape. The air passage is formed between the held woven and knitted fabric and the mounting surface, thereby solving the above problem.

[0011]

In the gas blowing duct, the processing air flows in the air passage formed between the woven and knitted fabric suspended in the arc shape and the mounting surface such as the ceiling. Then, the processing air flowing through the air passage is blown out from the entire circumference of the woven or knitted fabric. For this reason,
It is possible to blow at a low wind speed and only to the side and the bottom excluding the upper part.

The woven / knitted fabric does not need to be formed into a hollow cylindrical shape like the gas blowing duct shown in FIG. 3, but core materials are attached to the right and left sides of the rectangular shaped woven / knit fabric, and the core material is attached to the ceiling surface. Since the air passage can be obtained only by engaging with the opening of the core member receiver provided on the mounting surface of the duct, the duct can be easily manufactured.

Further, a duct can be provided on the mounting surface such as a ceiling or can be removed by simply pushing or pulling the core into or from the opening of the core receiving member by utilizing elasticity. Can be easily attached and detached.

Further, since the gas blowing duct of the present invention is directly attached to the mounting surface such as the ceiling, it can be mounted even if the height dimension is small, and the center of the woven or knitted fabric that hangs down in an arc shape is on the indoor side. It is excellent in design as it only protrudes.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to FIGS. 1 and 2 show one embodiment of a gas blowing duct (hereinafter referred to as a duct) according to the present invention.

In the figure, reference numeral 1 is a mounting surface such as a ceiling surface or a wall surface of a building. A main duct 2 whose one end is connected to a processing air supply source such as an air conditioner is provided on the mounting surface 1, and a plurality of branch ducts 3 are provided in the main duct 2 so as to be orthogonal to the main duct 2. ing. Main duct 2
And the branch duct 3 are substantially the same, and have the following configurations.

That is, on the mounting surface 1, two core receiving members 5 and 5 are provided in parallel with each other with a space therebetween.
The core receiving member 5 is made of a metal material having appropriate elasticity such as resin or aluminum. Core material receiver 5
As shown in FIG. 2, a bottom surface portion 6 fixed by a fixing means such as a screw in a state of being in contact with the mounting surface 1, and right and left standing portions 7 standing up orthogonally from both sides of the bottom surface portion 6. , 7 are formed in a U-shaped cross section. An opening 8 for locking is provided between the standing portions 7 and 7 so as to extend in the length direction of the core material receiver 5. Reinforcing ribs 6a are provided on the bottom surface portion 6 at appropriate positions, and a bent portion 7a is provided at the tip of the standing portion 7 so as to be bent inward to prevent the core material 9 from coming off. Has been.

On the other hand, a core material 9 is attached to each of the left and right sides of a woven / knitted fabric 10 made of a rectangular fiber material. The core material 9 is attached to the woven or knitted fabric 10 by being inserted into a ring portion 10a formed by bending the vicinity of the end of the woven or knitted fabric 10 inward and sewing the end edge to the middle part of the woven or knitted fabric 10. ing. Then, the left and right core materials 9, 9 are locked in the opening 8 of the core material receiver 5 via the woven / knitted material 10, whereby the woven / knitted material 10 suspended from the mounting surface 1 in an arc shape. An air passage 11 is formed between and.

The woven or knitted fabric 10 is made of a natural fiber such as cotton or hemp or a woven or knitted fabric made of polypropylene, nylon, polyester, acrylic or the like having an opening of 0.1 μm to 200 μm.

The core material 9 has a circular or polygonal cross section. Further, the core 9 can be made of any material such as wood, metal or resin. The point is that when the core 9 is sandwiched between the left and right upright portions 7 of the core receiver 5, its locked state is It only needs to be hard enough to be maintained.

Further, the diameter Wa of the core material 9 is set to be slightly larger than the natural distance between the bent portions 7a, 7a of the left and right standing portions 7, 7 of the core material receiver 5, and the core material 9 Is positioned so as to face the opening 8 of the core receiving member 12 and is pushed into the inner side of the opening 8, the upright portions 7 and 7 are bent outward to allow the core 9 to enter the inner side. When the core material 9 is completely penetrated into the interior and the standing portions 7, 7 return to their original positions, the core material 9 is locked by the bent portions 7a, 7a so as not to come out to the outside. There is. If necessary, a protrusion may be provided on the outer periphery of the core material 9 to more reliably prevent the core material 9 from coming off.

The main structures of the main duct 2 and the branch duct 3 are as described above. A plurality of openings 2a are provided on both the left and right sides of the main duct 2 with a predetermined interval, and the end openings of the branch duct 3 are abutted and fixed to the openings 2a, so that the main duct 2 and The branch ducts 3 are connected with their internal air passages communicating with each other. Further, the ends of the main duct 2 and the branch duct 3 are closed by a cap-shaped lid member 12. The lid member 12 may be made of the above-mentioned woven or knitted material, or may be made of another material such as metal or resin.

In the gas blowing duct having the above construction, clean processing air, which is introduced from the processing air supply source and is adjusted to a predetermined temperature, is attached to the woven and knitted fabric 10 suspended in an arc shape. Air passage 1 formed between the surface 1
1, the woven / knitted fabric 10 is inflated by the pressure of the supplied treated air, and the treated air is blown out from the entire circumference of the surface of the woven / knitted fabric 10 at a low wind speed. Woven and knitted fabric 1 at this time
The air velocity blown from the surface of 0 varies depending on the amount of air supplied to the room or the surface area of the woven or knitted fabric 10,
About 1 m / s or less (preferably about 0.01 m / s to 0.1
The surface area of the woven / knitted fabric 10, the number of branch ducts 3, and the like are set in advance so as to be in a range of m / s).

Since the treated air is blown from the entire circumference of the surface of the woven or knitted fabric 10 as described above, a large amount of gas is blown out evenly in the entire indoor space even at a low wind speed. For this reason, it is possible to avoid a situation in which the worker is intensively hit by the wind, so that the sensible temperature of the worker can be kept constant, and dust that adheres to the floor, walls, equipment, etc. is rolled up. Without this, the effects of reducing air pollution, uniforming the temperature of the entire room, and preventing condensation on the ceiling, walls, etc. can be obtained.

Further, since the woven / knitted fabric 10 hanging down in an arc shape as described above can be blown out in three directions, ie, the lateral direction and the downward direction except the upper direction, it is blown out to four directions by the gas blowing ducts shown in FIG. The thermal efficiency is better than in the case.

The woven / knitted fabric 10 does not need to be formed in a hollow cylindrical shape like the gas blowing duct shown in FIG. 3, and the core material 9 is attached to both right and left sides of the rectangular shaped woven / knitted fabric 10 to form the core material. Since the air passage 11 can be obtained only by locking 9 to the opening of the core material receiver provided on the mounting surface 1 such as the ceiling surface, the duct can be easily manufactured.

A duct can be provided on the mounting surface 1 such as a ceiling or the duct can be removed only by pushing or pulling the core material 9 into or from the opening of the core material receiving member 5 by utilizing elasticity. , The duct can be easily attached and detached.

Further, since the gas blowing duct of the present invention is provided directly on the mounting surface 1 such as the ceiling, it can be mounted even if the height is small, and the center of the woven or knitted fabric 10 which hangs in an arc shape. Is excellent in terms of design as it only protrudes to the inside.

Furthermore, the gas blowing duct of the present invention can contribute to improving the working environment more easily than the conventional air duct. For example, the woven or knitted fabric 10 can be dyed to have a color suitable for the working environment, and the atmosphere of the work site can be changed by replacing the woven or knitted fabric 10 with a different one. Further, since it is possible to coat the woven or knitted fabric 10 with a germicide or a fungicide, it is possible to provide a duct having a filter effect and a germicidal effect to a medical facility or the like. Further, in addition to the germicide, it is possible to coat a fragrance or a deodorant.

The gas blowing duct of the present invention is not limited to the structure of the above-mentioned embodiment, and the external appearance, dimensions, and the specific structure of each device arranged inside can be appropriately changed in the execution. is there.

For example, in the above embodiment, the ring portion 10a is provided on the side portion of the woven or knitted material 10 and the core material 9 is attached to the ring portion 10a.
Although the core material 9 is attached to the woven or knitted fabric 10 by inserting it, the present invention is not limited to this, and the end portion of the woven or knitted fabric 10 may be directly attached to the core material 9 by fixing means such as screwing. Good. In addition, in the above-described embodiment, the core material 9 can be inserted and locked in the opening 8 of the core material receiving tool 5 by giving elasticity to the core material receiving tool 5, but the present invention is not limited to this. The material 9 may have elasticity, or both the core material 9 and the core material receiver 5 may have elasticity.

[0032]

The present invention has the following effects. An air passage can be obtained by attaching core materials to both right and left sides of a woven or knitted fabric made of a fibrous material and locking the core materials to a core material receiver attached to a ceiling surface or the like to form the woven or knitted fabric into a hollow cylindrical shape. The duct can be obtained very easily because the necessity and the specific support means are unnecessary. By pushing the core materials attached to the left and right sides of the woven or knitted fabric into the core material receivers attached to the ceiling surface, etc. to lock them, or pulling them toward you to release the lock, The duct can be provided or the provided duct can be discarded, and the duct can be easily attached and detached. As described above, a duct is provided because an air passage can be obtained by simply attaching the core material receiver to the mounting surface such as the ceiling and locking the core material provided on the side portion of the woven or knitted material to the core material receiver. It is not necessary to remove the ceiling, etc., and it can be easily installed in an existing building. Since the gas blowing duct of the present invention is provided directly on the mounting surface such as the ceiling, it can be mounted even if the height dimension is small, and the center of the woven or knitted fabric that hangs down in an arc shape can be simply projected to the indoor side. It is also excellent in design because it exists.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a gas blowing duct according to the present invention.

FIG. 2 is a sectional view of an essential part of the gas blowing duct.

FIG. 3 is a cross-sectional view of essential parts showing a prior art of a gas blowing duct.

[Explanation of symbols]

 1 Mounting Surface 2 Main Duct 3 Branch Duct 5 Core Material Receptor 7 Standing Part 7a Bent Part 8 Opening 9 Core Material 10 Woven / Knitted Fabric 10a Ring Part 11 Air Passage 12 Lid Member

Claims (1)

[Claims] 1. Two long core material receivers are provided at intervals on a mounting surface facing an indoor space such as a ceiling surface or a wall surface, and each of the core material receivers has a longitudinal direction. While a locking opening extending to the core material is provided, a core material is attached to each of the right and left sides of a woven or knitted fabric made of a fibrous material formed in a rectangular shape, and at least one of the core material receiver and the core material is made of an elastic material. The left and right core members are elastically locked in the opening of the core member receiver, and an air passage is formed between the woven and knitted fabric suspended in an arc shape and the mounting surface. A gas outlet duct.