JP2001182136A - Whirl flow pipe and production method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a whirl flow pipe and the production method of the pipe capable of enhancing abrasion resistance and water resistance by smoothing both wirl guide plate faces and integrally forming the whirl guide plates with a vertical pipe and withstanding shocks, vibration, loads in the shear direction and easily controlling the quality and preventing exfoliation caused by penetration of water and reduction of strength caused by secular deterioration. SOLUTION: Liquid resins 16, 17 are applied on fibirous fabrics 14, 15 to form the upper block 18 of a molding pipe and the lower block 19 of the molding pipe in a state that the fibrous fabrics 14, 15 are put on the surface of the upper mold 12 and the lower mold 13 to familiarize therewith. Then, these blocks are integrally superimposed and a fibrous fabric 20 is put on the outer peripheral face of the body to familiarize therewith. In this state, the liquid resin 21 is applied thereon to form a molded pipe block 22 having one round of swirl guide plate 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swirl tube and a method for manufacturing the same.

[0002]

2. Description of the Related Art In order to eliminate inundation damage caused by rainwater in urban areas, part of rainwater that has fallen during heavy rains is temporarily stored in a large underground storage room. A flood-prevention facility that pumps the water stored in the room and discharges it to the river is currently being planned.

In the above-mentioned inundation countermeasure facility, there is provided a structure in which water is guided by guiding over a distance of 10 to 50 m between a water collecting pipe for collecting rainwater and a lower horizontal pipe communicating with a storage room provided deep underground. A swirling flow tube is being considered.

On the other hand, a swirling flow pipe has been studied as a device for dropping rainwater or other water into a lower horizontal pipe for guiding it to a drainage underground discharge pipe provided deep underground.

FIG. 13 shows an example of a swirling flow tube.
A vertical pipe 2 having an upper end connected to a water collecting pipe 1 for sending a fluid such as rainwater from a water dividing facility (not shown) and extending downward, and a turning guide plate 3 integrally provided inside the vertical pipe 2. To form a swirling flow tube 4, and the lower end of the swirling flow tube 4 is
It is connected to a lower horizontal pipe 6 extending in the horizontal direction and communicating with the storage chamber 5.

In the swirling flow pipe 4, when a fluid such as rainwater flows in from the water collecting pipe 1 at the upper end, the fluid is swirled by the swirling guide plate 3 provided inside the swirling flow pipe 4, and the swirl is maintained. In this state, the fluid flows down to the lower end of the swirling flow pipe 4, is discharged from the lower end of the swirling flow pipe 4 to the lower horizontal pipe 6, and the fluid discharged to the lower horizontal pipe 6 is guided to the storage chamber 5 and stored therein. .

As described above, when the fluid is swirled by the swirling flow pipe 4 and caused to flow down, the falling energy of the fluid can be reduced, and the fluid discharged from the swirling flow pipe 4 to the lower horizontal pipe 6 can be reduced. The impact force at the falling landing portion can be reduced, and a large amount of fluid can flow smoothly into the storage chamber 5 via the lower horizontal pipe 6 in a short time.

As a conventional method of manufacturing the swirling flow pipe 4, for example, as shown in FIG.
Is formed in advance, and a liquid resin is applied thereon from a state where a fiber cloth (not shown) such as glass fiber is applied so as to follow the surface of the mold 7. Then, a turning guide plate part 3a is formed, and a required number of the turning guide plate parts 3a are bonded to form a turning guide plate 3,
The turning guide plate 3 is connected to a GFRP (Glass Fiber).
Vertical tube 2 of required length formed of Reinforced Plastics (glass fiber reinforced plastic) or the like
It is inserted into the inside and bonded with an adhesive.

FIG. 15 shows the outer periphery of the turning guide plate 3.
As shown in FIG. 1, a flange portion 8 is formed, and a sealing material 9 such as rubber is attached to the flange portion 8.
The turning guide plate 3 is fixed to the vertical tube 2 without forming a gap between the vertical tube 2 and the turning guide plate 3.

In FIG. 15, reference numeral 10 denotes a fiber cloth of the vertical pipe 2,
Reference numeral 11 denotes a fiber cloth of the turning guide plate 3.

[0011]

However, as described above, in a state in which the fiber cloth is applied so as to follow the surface of the mold 7, a liquid resin is applied thereon, and the turning guide plate part 3 is applied.
is formed, and a required number of the swiveling guide plate parts 3a are bonded to form the swiveling guide plate 3. In order to form the swiveling guide plate 3, the back surface of the swiveling guide plate 3 coated with a liquid resin (opposite to the contact surface with the mold 7). Irregularities due to the fiber cloth are generated on the side surface), and the irregularities on the back surface side of the turning guide plate 3 are easily worn by sand and the like contained in running water and water easily penetrates, so that deterioration may be accelerated. was there.

On the other hand, since the swivel guide plate 3 is bonded to the vertical pipe 2 with an adhesive, it has a drawback that it is weak against impact, vibration and load in the shear direction.

When the turning guide plate 3 is bonded to the vertical pipe 2 with an adhesive, the bonding performance varies due to the temperature at the time of construction, the contamination of the bonding surface, the mixing of the adhesive, and the like.
Although such control is necessary, quality control is difficult because the state of adhesion cannot be directly confirmed, and there has been a concern that peeling due to penetration of water and strength deterioration due to aging of the adhesive may occur.

Further, if the swivel guide plate 3 is bonded to the vertical pipe 2 with an adhesive to complete the assembly, it becomes impossible to disassemble, it is difficult to perform maintenance and the like, and an inspection hole is provided. There were some things that had to be done.

In view of such circumstances, the present invention can improve the wear resistance and water resistance by smoothing the swivel guide plate on both sides, and can integrally form the swivel guide plate with the vertical pipe, and can be used for impact and vibration. To provide a swirling flow tube which is resistant to a load in a shear direction, easy to control quality, can prevent peeling due to water permeation and a decrease in strength due to aging of an adhesive, and can easily perform maintenance and the like, and a method of manufacturing the same. Things.

[0016]

According to the present invention, a swivel guide plate is integrally provided inside a vertical pipe so that a fluid flowing from an upper end portion is swirled downward vertically and guided to a lower portion. A swirling flow tube, in which a fiber cloth is applied so as to follow the surface of an upper die for forming an upper surface of a turning guide plate for one turn and an inner surface of a vertical tube rising from the upper surface of the turning guide plate. A liquid resin is applied from above, to form a molded pipe upper block, and to form a lower surface of the turning guide plate for one turn and an inner surface of a vertical tube hanging from the lower surface of the turning guide plate. In a state where a fiber cloth is applied so as to follow the surface of the mold, a liquid resin is applied from above, a molded tube lower block is molded, and the molded tube upper block and the molded tube lower block are overlapped and integrated. The torso In a state where the held against the fabric to follow the outer peripheral surface, by applying a liquid resin thereon,
The present invention relates to a swirling flow tube characterized by forming a formed tube block having a swirling guide plate for one turn.

In the above-mentioned swirling flow tube, a required number of formed tube blocks are stacked so that the swirling guide plate is continuous, and a liquid resin is applied from above onto the fiber tube in a state where a fiber cloth is applied so as to follow the outer peripheral surface of the body. Can be formed.

When the formed pipe upper block and the formed pipe lower block are overlapped and integrated, the ends of the swivel guide plates to be overlapped are slightly shifted in the turning direction, and the formed pipe block is moved to the swivel guide plate. When the required number is stacked so as to be continuous, the shift portions at the ends of the turning guide plates may be formed so as to overlap each other.

A plurality of types of formed pipe upper blocks having different thicknesses are formed, and a plurality of types of formed tube lower blocks having different thicknesses are formed. By appropriately combining them, a turning guide plate having a desired thickness is formed. It is also possible to form the formed pipe blocks by stacking the formed pipe blocks so that the turning guide plate having a thickness corresponding to the burden load is arranged.

The present invention also provides a swirling flow tube which is constituted by integrally providing a swirling guide plate inside a vertical tube, wherein the swirling flow tube is configured to swirl a fluid flowing from an upper end portion, flow vertically downward while guiding the fluid to a lower portion. A fiber cloth is applied so as to follow the surface of an upper mold for forming an upper surface of a turn guide plate for one turn and an inner surface of a vertical pipe rising from the upper surface of the turn guide plate, and the turn for one turn is provided. While applying a fiber cloth so as to follow the surface of the lower die for forming the lower surface of the guide plate and the inner surface of the vertical pipe hanging from the lower surface of the turning guide plate, with the upper die and the lower die overlapped, A fiber cloth is wound around the outer peripheral surface of the upper and lower dies, and an outer peripheral die for forming the outer peripheral surface of the vertical pipe is set so as to cover the outer periphery of the upper and lower dies. Inject liquid resin into the gap formed between By impregnating, it relates to a swirling flow tube, characterized in that by forming a molded tube block having a pivoting guide plate one pivot component.

In the above-mentioned swirling flow tube, a required number of formed tube blocks are stacked so that the swirling guide plate is continuous, and a liquid resin is applied thereon from a state where a fiber cloth is applied so as to follow the outer peripheral surface of the body. It can be formed as described above.

A flange joint for joining may be formed at the end of the molded tube block, and a socket joint for joining may be formed at the end of the molded tube block. Is also good.

On the other hand, the present invention comprises a swirl guide plate integrally provided inside a vertical tube, wherein the swirling flow tube is configured to swirl the fluid flowing from the upper end while flowing down vertically and guiding the fluid to the lower portion. The upper die for forming the upper surface of the turning guide plate for one turn and the inner surface of the vertical pipe rising from the upper surface of the turning guide plate, and the lower surface of the turning guide plate for the one turn. A lower mold for forming an inner surface of a vertical pipe hanging down from the lower surface of the turning guide plate is formed in advance, and a liquid resin is applied from above the fiber mold in a state where a fiber cloth is applied so as to follow the surface of the upper mold. To form a molded pipe upper block, and apply a liquid resin from above to the molded pipe upper block while applying a fiber cloth so as to follow the surface of the lower mold, thereby forming a molded pipe lower block, and forming the molded pipe upper block. Block and formed tube lower block In a state in which the fiber cloth is applied so as to follow the outer peripheral surface of the body portion, and a liquid resin is applied thereon, a molded pipe block having a turn guide plate for one turn is formed. The present invention relates to a method for manufacturing a swirling flow tube, characterized by being formed.

In the method for manufacturing a swirling flow tube, the required number of the formed tube blocks are stacked so that the swirling guide plate is continuous, and a fiber cloth is applied so as to follow the outer peripheral surface of the body portion. Can be applied.

When the upper and lower sections of the formed pipe are overlapped and integrated with each other, the end of the superposed swivel guide plate is slightly shifted in the swiveling direction, and the formed pipe block is moved to the swivel guide plate. When the required number is stacked so as to be continuous, the shift portions at the ends of the turning guide plates may overlap each other.

A plurality of types of formed pipe upper blocks having different thicknesses are formed, and a plurality of types of formed tube lower blocks having different thicknesses are formed. By appropriately combining them, a turning guide plate having a desired thickness is formed. It is also possible to form the formed pipe blocks having the same shape, and to stack the formed pipe blocks so that the turning guide plate having a thickness corresponding to the burden load is arranged.

The present invention also provides a swirling flow tube which is constituted by integrally providing a swirling guide plate inside a vertical tube, and in which a fluid flowing from an upper end portion flows downward vertically while swirling, and is guided to a lower portion. The upper die for forming the upper surface of the turning guide plate for one turn and the inner surface of the vertical pipe rising from the upper surface of the turning guide plate, and the lower surface of the turning guide plate for the one turn. A lower mold for forming an inner surface of a vertical pipe hanging from the lower surface of the turning guide plate is formed in advance, and a fiber cloth is applied so as to follow the surface of the upper mold, and the surface of the lower mold is imitated. While applying the fiber cloth, in a state where the upper mold and the lower mold are overlapped, the fiber cloth is wound around the outer peripheral surface of the body of the upper and lower molds, and the outer peripheral mold for forming the outer peripheral surface of the vertical pipe is formed by the upper and lower molds. Set to cover the outer periphery of the torso, and A method of manufacturing a swirling flow pipe, comprising forming a molded pipe block having a swirling guide plate for one turn by injecting a liquid resin into a gap formed between the mold and a fiber cloth and impregnating the fiber cloth. It depends on.

In the method of manufacturing a swirling flow tube, the required number of the formed tube blocks are stacked so that the swirling guide plate is continuous, and a fibrous cloth is applied so as to follow the outer peripheral surface of the body. Can be applied.

According to the above means, the following effects can be obtained.

When the molded tube upper block and the molded tube lower block are superimposed to form a molded tube block, a liquid resin is applied from above onto the fiber tube in a state where a fiber cloth is applied so as to follow the surface of the mold as in the conventional case. In contrast to forming a turning guide plate part and bonding the required number of the turning guide plate parts to form a turning guide plate, a turning guide in which liquid resin is applied and laminated to form unevenness due to a fiber cloth is formed. Since the back side of the plate is superimposed and integrated and is not exposed on the surface, the turning guide plate is smoothed on both sides,
It is less likely to be worn by sand or the like contained in running water, and harder to penetrate water, and less likely to deteriorate.

On the other hand, unlike the conventional case where the swivel guide plate is bonded to the vertical tube with an adhesive, a continuous fiber cloth having high strength from the inner peripheral surface of the vertical tube to the swivel guide plate is used. Because it is overhanging with the resin,
Resistant to shock, vibration and shear load.

In contrast to the case where a turning guide plate is inserted into the inner peripheral surface of a vertical pipe and bonded with an adhesive, it is more difficult to superimpose and bond the formed pipe upper block and the formed pipe lower block on a plane. Regardless of whether or not an adhesive is used, it is easy to check the state of adhesion, and because water does not come into direct contact with the adhesive, quality control is easy, peeling due to water penetration and aging of the adhesive There is almost no fear of strength reduction due to

A required number of formed pipe blocks are stacked so that the swiveling guide plate is continuous, and a liquid resin is applied from above on a fibrous cloth applied so as to follow the outer peripheral surface of the body. A swirl flow tube having a swirl guide plate can be formed.

When the upper and lower sections of the formed pipe are overlapped and integrated, the ends of the swivel guide plates to be overlapped are slightly shifted in the turning direction, and the formed pipe block is moved to the swivel guide plate. When the required numbers are stacked so as to be continuous, if gaps at the ends of the turning guide plates overlap each other, it is possible to minimize the gap between the joints of the turning guide plates.

A plurality of types of formed pipe upper blocks having different thicknesses are formed, and a plurality of types of formed tube lower blocks having different thicknesses are formed. By appropriately combining them, a turning guide plate having a desired thickness can be formed. Forming a formed pipe block having, and stacking the formed pipe blocks so that the turning guide plate having a thickness corresponding to the burden load is arranged, it is possible to efficiently increase the strength of only the necessary parts,
It leads to weight reduction and cost reduction.

When a liquid resin is injected into a gap formed between the upper die, the lower die and the outer peripheral die and impregnated into a fiber cloth to form a molded tube block, the shape of the molded tube block follows the surface of the die as in the prior art. Unlike the case in which a liquid resin is applied from above on a fiber cloth, a turning guide plate part is formed, and a required number of the turning guide plate parts are bonded to form a turning guide plate. Is smoothed on both sides, hard to be worn by sand etc. in running water, hard to penetrate water, and hard to deteriorate, while the swivel guide plate adheres to the vertical pipe as before Unlike the joints made with chemicals, the vertical pipe and the swivel guide plate are completely integrated, making them even more resistant to shock, vibration, and loads in the shear direction. There is no need to worry about a decrease in strength due to deterioration. Further, it is possible to form the molded tube block with high precision and without post-processing.

A molded pipe block formed by injecting a liquid resin into a gap formed between the upper mold, the lower mold, and the outer peripheral mold and impregnating the cloth with the resin is also provided with a molded pipe upper block and a molded pipe lower block. As in the case of a molded pipe block formed by superimposing, a required number of swivel guide plates are stacked one on another, and a liquid resin is applied from above on a state where a fiber cloth is applied so as to follow the outer peripheral surface of the body. By doing so, it is possible to form a swirling flow tube having a plurality of swirling guide plates.

When a flange joint for joining is formed at the end of the molded tube block, or a socket joint for joining is formed at the end of the molded tube block, the joints between the molded tube blocks can be smoothly and reliably performed. In addition, even when a required number of formed pipe blocks are stacked and a plurality of swirling flow pipes are joined to form a long swirling flow pipe and assembly is completed, it is possible to disassemble at the flange joint part, And so on, and there is no need to provide inspection holes.

[0039]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which an upper surface of a turning guide plate 3 for one turn and an inner surface of a vertical pipe 2 rising from the upper surface of the turning guide plate 3 are formed. A mold 12 and a lower mold 13 for forming the lower surface of the turning guide plate 3 for one turn and the inner surface of the vertical pipe 2 hanging from the lower surface of the turning guide plate 3 are formed in advance (FIG. 1). (I)
In a state where the fiber cloth 14 is applied so as to follow the surface of the upper mold 12, a liquid resin 16 is applied from above onto the fiber cloth 14 to form a molded pipe upper block 18, and the lower mold 13 is formed.
In the state where the fiber cloth 15 is applied so as to follow the surface of the resin, the liquid resin 17 is applied from above, and
(See FIGS. 1 (b) and 1 (c)), and the formed tube upper block 18 and the formed tube lower block 19 are overlapped and integrated (see FIG. 1 (d)). In a state where the fiber cloth 20 is applied so as to follow the outer peripheral surface, the liquid resin 21 is applied from above (see FIG. 1 (e)), thereby forming the molded pipe block 22 having the swivel guide plate 3 for one turn. (See FIG. 1F).

It should be noted that the lower block 19 of the formed pipe is shown in FIG.
The shaped pipe upper block 18 has substantially the same shape as this.

When the molded pipe upper block 18 and the molded pipe lower block 19 are overlapped and integrated, the molded pipe upper block 18 and the molded pipe lower block 19 are respectively hardened and then overlapped and bonded. To be integrated by bonding with an agent,
Before curing the molded tube lower block 19 and each other, they can be integrated by overlapping and bonding without using an adhesive.

When the molded tube block 22 is formed in this manner, as in the conventional case, a liquid resin is applied from above onto a state in which a fiber cloth is applied so as to follow the surface of the mold 7, thereby forming the turning guide plate part 3a. Unlike the case where the required number of the swivel guide plate parts 3a are bonded to form the swivel guide plate 3, the liquid resins 16, 17 are applied and laminated, and the fiber cloths 14, 15 are laminated.
The back surface of the turning guide plate 3 having irregularities due to
The surfaces opposite to the contact surfaces 2 and 13) are overlapped and integrated and are not exposed on the surface, so that the swivel guide plate 3 is smoothed on both surfaces, and the sand contained in the running water is removed. Etc., it is hard to be worn, water hardly permeates, and hardly deteriorates.

On the other hand, unlike the conventional case, the turning guide plate 3 is bonded to the vertical tube 2 with an adhesive, and the continuous guide having high strength from the inner peripheral surface of the vertical tube 2 to the turning guide plate 3. Since the fiber cloths 14 and 15 thus formed project together with the resin, the fiber cloths 14 and 15 are resistant to impact, vibration, and load in the shear direction.

The turning guide plate 3 is disposed on the inner peripheral surface of the vertical pipe 2.
Inserting and bonding with an adhesive, the upper and lower portions of the molded tube upper block 18 and the molded tube lower block 19 are superposed two-dimensionally and bonded, regardless of the use of the adhesive. It is easy to confirm the situation, and since water does not come into direct contact with the adhesive, quality control is easy, and there is almost no fear of peeling due to penetration of water or deterioration of strength due to aging of the adhesive.

The formed pipe blocks 22 formed as described above are stacked in a required number so that the swivel guide plate 3 is continuous, and as shown in FIG. 3, a fiber cloth 23 is applied so as to follow the outer peripheral surface of the body. If the liquid resin 24 is applied from above, the swirl flow tube 4 having the swirl guide plate 3 for a plurality of swirls (two swirls in the example in the figure) as shown in FIG. 3 can be formed. If a flange joint portion 25 for joining is formed at the end of the swirl flow tube 4 and a plurality of swirl flow tubes 4 are joined via the flange joint portion 25, a longer swirl flow tube 4 can be formed. .

Here, when the required number of the formed pipe blocks 22 are stacked so that the swiveling guide plates 3 are continuous, FIG.
As shown in (a), if a socket joint 26 for joining for receiving the end of the other molded tube block 22 is formed at the end of one molded tube block 22, the molded tube blocks 22 are joined together. After that, in a state where the fiber cloth 23 (see FIG. 3) is applied so as to follow the outer peripheral surface of the body portion of the joined molded pipe block 22, the liquid resin 24 (see FIG. 3) is applied from above. Is applied, a swirling flow tube 4 as shown in FIG. 4B can be formed.

Further, even if the long swirling flow tube 4 is formed and assembly is completed, it can be disassembled at the flange joint portion 25, maintenance can be easily performed, and an inspection hole or the like need not be provided.

When the required number of the formed pipe blocks 22 are stacked such that the swivel guide plates 3 are continuous, a slight gap or step is generated between the joints of the swivel guide plates 3. Although such gaps and steps have almost no problem with respect to the flow of water, as shown in FIG. 5, if the resin 27 such as putty is filled in the gap between the joints of the turning guide plate 3, This is effective for preventing clogging of dust into gaps and for preventing water from entering an adhesive portion.

When the formed tube upper block 18 and the formed tube lower block 19 are overlapped and integrated, as shown in FIG. 6, the end portions of the swivel guide plates 3 to be overlapped are slightly shifted in the turning direction. And the molded tube block 22
When the required number of the turning guide plates 3 are stacked so that the turning guide plates 3 are continuous, the gaps between the joints of the turning guide plates 3 can be minimized by overlapping the shift portions 28 at the ends of the turning guide plates 3. It becomes possible. Needless to say, a resin such as putty may be filled in the gap between the joints of the turning guide plate 3 in FIG.

Further, as shown in FIG. 7, if the resin 29 is applied to the upper and lower overlapping portions at the starting end of the turning guide plate 3, it is effective to prevent water from entering the bonding portion and increase the strength.

In the swirling flow tube 4 shown in FIG.
The central pipe 30 is integrally formed at the center of the pipe. However, as shown in FIG. 8, a required number of the formed pipe blocks 22 without the central pipe 30 are required so that the turning guide plate 3 is continuous (in the example of FIG. The swirling flow tube 4 without a central tube can be formed by applying a liquid resin from above onto a fiber cloth applied so as to follow the outer peripheral surface of the body portion.

In the case of the swirling flow tube 4 without the center tube 30 as shown in FIG. 8, if the center corner of the starting end of the swirling guide plate 3 is kept sharp, dust may be caught.
As shown in the figure, the central corner 31 of the starting end of the turning guide plate 3
If the is cut so as to be rounded, it is possible to make it harder for dust to be caught.

The load borne by the swirl guide plate 3 depends on the vertical position of the swirl pipe 4. In general, the upper part of the swirling flow tube 4 has a large water weight on the swirl guide plate 3 and the burden load on the swirl guide plate 3 is large. Since the weight is small and a part of the load is canceled by the swirling flow, the burden load on the swirling guide plate 3 is reduced. Further, the lower part of the swirling flow tube 4 is swirled by the influence of the turbulent flow of the water outlet. The load on the plate 3 tends to be large, but if the thickness of the turning guide plate 3 is designed with the maximum load, the thickness of the turning guide plate 3 becomes unnecessarily thick at a portion where the load is small, and the weight is reduced. This leads to an increase and cost increase.

Therefore, for example, as shown in FIG. 10, a formed pipe upper block 18 having a thickness T (for example, 20 [mm]) and a formed pipe lower block 19 having a thickness t (for example, 5 [mm]).
Are formed on top of each other to form a molded tube block 22, and a molded tube block 22 formed by superimposing a molded tube upper block 18 having a wall thickness t and a molded tube lower block 19 having a wall thickness t is disposed below the molded tube block 22. Or as shown in FIG.
A molded tube block 22 is formed by superimposing a molded tube upper block 18 having a thickness T ′ (for example, 15 [mm]) and a molded tube lower block 19 having a thickness T ′. Tube block 2 formed by superimposing a formed tube upper block 18 and a formed tube lower block 19 having a thickness t.
2, and a molded pipe block 22 formed by superimposing a molded pipe upper block 18 having a wall thickness t and a molded pipe lower block 19 having a wall thickness t on the lower side.
The turning guide plate 3 having a thickness corresponding to the burden load is arranged.

In this case, the upper molded pipe block 22
A step is formed between the joint portion between the turning guide plate 3 of FIG. 1 and the turning guide plate 3 of the lower forming pipe block 22, and the step is filled with a resin 27 such as putty (see FIG. 5). I just need.

As described above, a plurality of types of molded pipe upper blocks 18 having different wall thicknesses are formed, and a plurality of types of molded tube lower blocks 19 having different thicknesses are formed and appropriately combined to obtain a desired wall thickness. Thick turning guide plate 3
Is formed, and the formed pipe blocks 22 are stacked so that the swiveling guide plate 3 having a thickness corresponding to the burden load is arranged, so that it is possible to efficiently increase the strength of only necessary portions. This leads to weight reduction and cost reduction.

In this way, the turning guide plate 3 can be smoothed on both sides to improve wear resistance and water resistance, and the turning guide plate 3 can be formed integrally with the vertical pipe 2 so as to be resistant to impact, vibration and shear load. It is strong, easy to control quality, can prevent peeling due to water penetration and deterioration in strength due to aging of the adhesive, can easily perform maintenance, etc.
By only strengthening the necessary parts, the weight and cost can be reduced.

FIG. 12 shows another embodiment of the present invention, in which the upper surface of the turning guide plate 3 for one turn and the inner surface of the vertical pipe 2 rising from the upper surface of the turning guide plate 3 are formed. The upper mold 12 and the lower mold 13 for forming the lower surface of the turning guide plate 3 for one turn and the inner surface of the vertical pipe 2 hanging from the lower surface of the turning guide plate 3 are formed in advance ( FIG.
(A)), the fiber cloth 1 is made to follow the surface of the upper mold 12.
4 and the fiber cloth 1 so as to follow the surface of the lower mold 13.
5 (see FIG. 12 (b)), and the upper and lower dies 12, 13 are overlapped with the upper die 12 and the lower die 13.
A fiber cloth 20 is wound around the outer peripheral surface of the vertical section 2 (see FIG. 12C), and an outer peripheral mold 32 for forming the outer peripheral surface of the vertical tube 2 is set so as to cover the outer periphery of the upper and lower molds 12 and 13. Then, liquid resin 33 is injected into a gap formed between the upper mold 12, the lower mold 13, and the outer peripheral mold 32 and impregnated into the fiber cloth, so that one turn is obtained. Forming a formed tube block 22 having a swivel guide plate 3 (FIG. 12)
(F)).

When the molded tube block 22 is formed in this manner, a liquid resin is applied from above on a fiber cloth so as to follow the surface of the mold 7 to form the swivel guide plate part 3a, as in the prior art. Unlike the case where the required number of the swivel guide plate parts 3a are bonded to form the swivel guide plate 3, the swivel guide plate 3 has a shape that is smooth on both sides, and is abraded by sand and the like contained in running water. And water hardly permeates, and hardly deteriorates.

On the other hand, unlike the conventional case, in which the swivel guide plate 3 is joined to the vertical tube 2 with an adhesive, the vertical tube 2 and the swivel guide plate 3 are completely integrated. ,
It is even more resistant to impact, vibration and load in the shearing direction, and there is no concern about peeling due to water penetration or deterioration in strength due to aging of the adhesive. In addition, it becomes possible to form the molded tube block 22 with high precision and without post-processing.

The formed pipe blocks 22 formed by the procedure shown in FIG. 12 are also stacked in a required number so that the turning guide plates 3 are continuous, similarly to the case of the formed pipe blocks 22 formed by the procedure shown in FIG. As shown in FIG. 3, if the liquid resin 24 is applied from above while the fiber cloth 23 is applied so as to follow the outer peripheral surface of the body, a plurality of turns as shown in FIG. In this example, the swirl flow tube 4 having the swirl guide plate 3 for two turns can be formed (however,
Molded tube block 22 formed by the procedure shown in FIG.
In this case, the formed pipe upper block 18 and the formed pipe lower block 19 are not formed, so that the lines and the like of the joints shown in FIG. 3 do not appear. A flange joint portion 25 for joining is formed at the end of the swirl flow tube 4, and a plurality of swirl flow tubes 4 are joined through the flange joint portion 25 to form a longer swirl flow tube 4. Here, when the required number of the formed pipe blocks 22 are stacked so that the turning guide plates 3 are continued, as shown in FIG. Forming the socket joint portion 26 for joining for receiving the end of the tube block 22 allows the molded tube blocks 22 to be smoothly joined to each other, and thereafter, the outer periphery of the trunk portion of the joined molded tube block 22 With the fiber cloth 23 applied to follow the surface,
If the liquid resin 24 is applied from above, FIG.
A swirling flow tube 4 as shown in (b) can be formed.

Also, when a plurality of swirling flow tubes 4 formed by stacking a required number of formed tube blocks 22 formed by the procedure shown in FIG. 12 are joined to form a long swirling flow tube 4, the assembly is completed. Can be disassembled in the flange joint portion 25, maintenance and the like can be easily performed, and it is not necessary to provide an inspection hole or the like.

When the required number of the formed pipe blocks 22 are stacked so that the swivel guide plates 3 are continuous, the gap formed between the joint portions of the swivel guide plates 3 is filled with a resin such as putty as described above. This is effective for preventing clogging of dust into the gap and preventing water from entering the bonding portion.

When forming the formed tube block 22 by the procedure shown in FIG. 12, the center tube 30 can be formed integrally with the center portion of the turning guide plate 3 or the center tube 30 can be eliminated as described above. Swirling flow tube 4 which is possible and has no central tube 30
In this case, as shown in FIG. 9, if the corner 31 at the center of the starting end of the turning guide plate 3 is cut so as to be rounded, dust can be hardly caught.

In this way, even when the formed tube block 22 is formed by the procedure shown in FIG. 12, the turning guide plate 3 is smoothed on both surfaces in the same manner as when the formed tube block 22 is formed by the procedure shown in FIG. To improve the abrasion resistance and water resistance, and to form the swivel guide plate 3 integrally with the vertical pipe 2,
Resistant to shock, vibration and shear direction load, easy quality control,
It is possible to prevent peeling due to penetration of water and a decrease in strength due to aging of the adhesive, and maintenance can be easily performed.

It should be noted that the swirling flow tube and the method for manufacturing the same according to the present invention are not limited to the above-described illustrated examples, and various changes can be made without departing from the scope of the present invention. .

[0068]

As described above, according to the swirling flow tube and the method of manufacturing the same according to the present invention, the following excellent effects can be obtained.

(I) By forming the molded tube block by superimposing the molded tube upper block and the molded tube lower block, the turning guide plate can be smoothed on both surfaces to improve wear resistance and water resistance, and The swivel guide plate can be formed integrally with the vertical pipe, resistant to shock, vibration and shear load, easy to control quality, and can prevent peeling due to water penetration and deterioration in strength due to aging of the adhesive.

(II) A required number of formed pipe blocks are stacked one on another so that the swiveling guide plate is continuous, and a liquid resin is applied thereon from a state where a fiber cloth is applied so as to follow the outer peripheral surface of the body part. A swirl flow tube having a swirl guide plate for the swirl can be formed.

(III) When the formed upper tube block and the formed lower tube block are overlapped and integrated, the end of the superimposed turning guide plate is slightly shifted in the turning direction, and the formed tube block is moved. When the required number of turning guide plates are stacked so as to be continuous, the gap between the joints of the turning guide plates can be minimized by overlapping the shift portions at the ends of the turning guide plates.

(IV) A plurality of types of formed pipe upper blocks having different thicknesses are formed, and a plurality of types of formed tube lower blocks having different thicknesses are formed, and these are appropriately combined to form a swivel having a desired thickness. If a formed tube block having a guide plate is formed and the formed tube blocks are stacked so that a swivel guide plate having a thickness corresponding to the burden load is arranged, only a necessary portion of the swivel guide plate is reinforced to reduce the weight and Cost can be reduced.

(V) A liquid resin is poured into a gap formed between the upper die, the lower die, and the outer peripheral die and impregnated into a fiber cloth to form a molded tube block, so that the swivel guide plate is formed on both surfaces. It can smoothen to improve abrasion resistance and water resistance, and can be integrally formed with a swivel guide plate to a vertical pipe, resistant to shock, vibration, and shear load, easy to control quality, and exfoliated by water penetration. The strength can be prevented from deteriorating due to aging of the adhesive,
Further, the molded tube block can be formed with high precision and without post-processing.

(VI) A molded pipe block formed by injecting a liquid resin into a gap formed between the upper mold, the lower mold, and the outer peripheral mold and impregnating the fabric with the liquid resin is also a molded pipe upper block and a molded pipe. As in the case of the molded tube block formed by superimposing the lower block, the required number of swivel guide plates are stacked so that they are continuous, and the fiber cloth is applied to follow the outer peripheral surface of the body. Is applied, a swirl flow tube having a swirl guide plate for a plurality of turns can be formed.

(VII) Joining of the formed tube blocks by forming a flange joint for joining at the end of the formed tube block or forming a socket joint for joining at the end of the formed tube block. Can be performed smoothly and reliably, and the long swirling flow tube after the assembly is completed can be disassembled at the flange joint portion, so that maintenance and the like can be easily performed.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a manufacturing procedure of an example of an embodiment of the present invention.

FIG. 2 is a perspective view of a molded pipe lower block according to an example of the embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a swirling flow tube formed by stacking two formed tube blocks according to an example of an embodiment of the present invention.

FIG. 4 is a perspective view showing a swirling flow pipe formed by stacking two socket joints at an end of a molded pipe block in an example of an embodiment of the present invention when the socket joints are formed.

FIG. 5 is an enlarged cross-sectional view illustrating a state in which a resin is filled in a gap between joints of a turning guide plate according to an example of an embodiment of the present invention.

FIG. 6 is an enlarged cross-sectional view illustrating a state in which a shift portion is formed at an end of a turning guide plate and the two are overlapped with each other in an example of an embodiment of the present invention.

FIG. 7 is an enlarged cross-sectional view showing a state in which a resin is applied to a vertically overlapping portion at the start end of a turning guide plate in an example of an embodiment of the present invention.

FIG. 8 is a cross-sectional view illustrating a swirling flow tube formed by stacking six formed tube blocks without a center tube in an example of an embodiment of the present invention.

FIG. 9 is a partially cut-away plan view showing a state in which a corner at the center of the starting end of the turning guide plate is cut so as to be rounded, which is equivalent to the view taken along the line IX-IX in FIG. 8;

FIG. 10 is an enlarged cross-sectional view illustrating an example in which the thickness of a turning guide plate is changed at a vertical position in an example of an embodiment of the present invention.

FIG. 11 is an enlarged cross-sectional view illustrating another example in which the thickness of the turning guide plate is changed in a vertical direction in an example of the embodiment of the present invention.

FIG. 12 is a schematic diagram showing a manufacturing procedure of another example of the embodiment of the present invention.

FIG. 13 is a sectional view showing an example of a conventional swirling flow tube.

FIG. 14 is a schematic view illustrating an example of a conventional method for manufacturing a swirling flow tube.

FIG. 15 is an enlarged sectional view showing a joint portion of a swirl guide plate to a vertical tube of a conventional swirl flow tube.

[Explanation of symbols]

 2 vertical pipe 3 swirl guide plate 4 swirl flow pipe 12 upper die 13 lower die 14 fiber cloth 15 fiber cloth 16 liquid resin 17 liquid resin 18 molded pipe upper block 19 molded pipe lower block 20 fiber cloth 21 liquid resin 22 molded pipe block 23 Fiber cloth 24 Liquid resin 25 Flange joint part 26 Socket joint part 27 Resin 28 Displacement part 29 Resin 32 Outer peripheral type 33 Liquid resin

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yusuke Mori 3-1-1-15 Toyosu, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries, Ltd. Tokyo Engineering Center (72) Inventor Nobunfumi Hirata Shinnaka, Isogo-ku, Yokohama-shi, Kanagawa No. 1 Haramachi F-term in the IHI AMTEC Craft Department AG27 WA16 WA52 WA53 WA57 WA97 WB01 WC01 WF01 WF05 WF29 WF37

Claims (14)

[Claims] 1. A swirling flow tube constituted by integrally providing a swirling guide plate inside a vertical tube, wherein the swirling flow tube is configured to flow vertically downward while swirling a fluid flowing from an upper end portion and guide the fluid to a lower portion, A liquid resin is applied from above onto the upper surface of the turning guide plate for one turn and a fiber cloth is applied so as to follow the surface of the upper die for forming the inner surface of the vertical pipe rising from the upper surface of the turning guide plate. Then, while forming the upper block of the forming pipe,
In a state where a fiber cloth is applied so as to follow the surface of a lower mold for forming the lower surface of the turning guide plate for one turn and the inner surface of a vertical pipe hanging down from the lower surface of the turning guide plate, the liquid resin is applied from above. To form a molded pipe lower block, the molded pipe upper block and the molded pipe lower block are overlapped and integrated, and a fiber cloth is applied so as to follow the outer peripheral surface of the body. A swirling flow tube characterized by forming a molded tube block having a swirling guide plate for one turn by applying a liquid resin from the swirling flow tube. 2. A required number of formed pipe blocks are stacked so that the turning guide plate is continuous, and a liquid resin is applied thereon from a state in which a fiber cloth is applied so as to follow the outer peripheral surface of the body. A swirling flow tube as described. 3. When the formed tube upper block and the formed tube lower block are overlapped and integrated, the end of the superimposed turning guide plate is slightly shifted in the turning direction, and the formed tube block is turned. 3. The swirling flow pipe according to claim 2, wherein when the required number of the guide plates are stacked in a continuous manner, the deviation portions at the ends of the swirl guide plates overlap each other. 4. A plurality of types of formed pipe upper blocks having different thicknesses are formed, and a plurality of types of formed tube lower blocks having different thicknesses are formed and appropriately combined to form a swivel guide having a desired thickness. 4. The swirling flow tube according to claim 3, wherein a formed tube block having a plate is formed, and the formed tube blocks are stacked so that a swirling guide plate having a thickness corresponding to a burden load is arranged. 5. A swirling flow tube which is constituted by integrally providing a swirling guide plate inside a vertical tube, wherein the swirling flow tube is configured to flow vertically downward while swirling a fluid flowing from an upper end portion and guide the fluid to a lower portion, A fiber cloth is applied so as to follow the surface of the upper die for forming the upper surface of the turn guide plate for one turn and the inner surface of the vertical pipe rising from the upper surface of the turn guide plate, and the lower surface of the turn guide plate for one turn A fiber cloth is applied so as to follow the surface of a lower mold for forming an inner surface of a vertical pipe hanging down from the lower surface of the turning guide plate, and the upper mold and the lower mold are overlapped with each other. A fiber cloth is wound around the outer peripheral surface of the body, and an outer mold for forming the outer peripheral surface of the vertical pipe is set so as to cover the outer periphery of the upper and lower molds. Inject the liquid resin into the formed gap to impregnate the fiber cloth And, the swirling flow tube, characterized in that by forming a molded tube block having a pivoting guide plate one pivot component. 6. A required number of formed pipe blocks are stacked so that the swiveling guide plate is continuous, and a liquid resin is applied from above onto the fiber tube while the fiber cloth is applied so as to follow the outer peripheral surface of the body. Item 6. A swirling flow tube according to Item 5. 7. A flange joint for joining is formed at an end of a molded pipe block.
7. The swirl tube according to 4, 5, or 6. 8. A socket joint for joining is formed at an end of a molded tube block.
7. The swirl tube according to 4, 5, or 6. 9. A method of manufacturing a swirling flow tube, comprising a swirling guide plate integrally provided inside a vertical tube, wherein a fluid flowing from an upper end portion is caused to flow vertically downward while swirling and to be guided to a lower portion. An upper die for forming an upper surface of a turn guide plate for one turn and an inner surface of a vertical pipe rising from an upper surface of the turn guide plate; a lower surface of the turn guide plate for one turn and the turn guide plate A lower mold for forming an inner surface of a vertical pipe hanging from the lower surface of the lower mold is formed in advance, and a fiber cloth is applied so as to follow the surface of the upper mold.
A liquid resin is applied from above, and a molded pipe upper block is formed, and while a fiber cloth is applied so as to follow the surface of the lower mold, a liquid resin is applied from above to form a molded pipe lower block. The upper and lower molded pipe blocks are superposed and integrated, and a liquid resin is applied thereon from a state where a fiber cloth is applied so as to conform to the outer peripheral surface of the body, thereby making one turn. A method for manufacturing a swirling flow tube, comprising forming a formed tube block having a swirling guide plate. 10. A liquid resin is applied from above with a required number of formed tube blocks stacked one on another so that the swiveling guide plate is continuous, and a fiber cloth is applied so as to follow the outer peripheral surface of the body portion. 10. The method for producing a swirling flow tube according to item 9. 11. When the formed pipe upper block and the formed pipe lower block are overlapped and integrated, the end of the superimposed turning guide plate is slightly displaced in the turning direction, and the formed pipe block is turned. The method of manufacturing a swirling flow tube according to claim 10, wherein when a required number of the guide plates are stacked so as to be continuous, deviation portions at the ends of the swirl guide plates overlap each other. 12. A plurality of types of formed pipe upper blocks having different thicknesses are formed, and a plurality of types of formed tube lower blocks having different thicknesses are formed and appropriately combined to form a swivel guide having a desired thickness. 11. The method for manufacturing a swirling flow tube according to claim 10, wherein a formed pipe block having a plate is formed, and the formed pipe blocks are stacked so that a swirling guide plate having a thickness corresponding to a burden load is arranged. 13. A method of manufacturing a swirling flow tube, comprising a swirling guide plate integrally provided inside a vertical tube, wherein a fluid flowing from an upper end portion is caused to flow vertically downward while being swirled, and to be guided to a lower portion. An upper die for forming an upper surface of a turn guide plate for one turn and an inner surface of a vertical pipe rising from an upper surface of the turn guide plate; a lower surface of the turn guide plate for one turn and the turn guide plate A lower mold for forming an inner surface of a vertical pipe hanging down from a lower surface of the lower mold is previously formed, and a fiber cloth is applied so as to follow the surface of the upper mold, and a fiber cloth is applied so as to follow the surface of the lower mold. At the same time, in a state where the upper die and the lower die are overlapped, a fiber cloth is wound around the outer peripheral surface of the upper and lower dies, and the outer peripheral die for forming the outer peripheral surface of the vertical pipe is formed by removing the outer periphery of the upper and lower die. Set to cover, the upper mold, the lower mold and the outer mold Method for producing a swirl flow tube gap formed by injecting a liquid resin by impregnating the fiber fabric, which is characterized by forming a shaped tube block having a pivoting guide plate one pivot component to. 14. A resin pipe is formed by stacking a required number of formed pipe blocks so that the swiveling guide plate is continuous, and applying a liquid resin from above while applying a fiber cloth so as to follow the outer peripheral surface of the body. 14. A method for producing a swirling flow tube according to claim 13.