JP3831354B2 - Pipe inner surface cleaning equipment - Google Patents

Description

[0001]
[Field of the Invention]
The present invention relates to an inner surface of a pipe provided with a gap closing device for preventing the abrasive from leaking through a gap between the abrasive recovery rod and the pipe fitted in the hole of the rod in pipe cleaning. it relates to the blast apparatus.
[0002]
[Prior art]
FIG. 5 shows a conventional inner surface cleaning apparatus for a large-diameter pipe.
The scouring device has two scouring material recovery rods (1) (1a) arranged opposite to each other, one of the scouring material recovery rods (1) is fixed in place, and the other scouring material recovery rod (1a) ) Is movably disposed on the rail (13), and can be moved closer to and away from the stationary recovery rod (1a).
Pipe insertion holes (11) and (11) were opened on the opposing surfaces of the two scraped material recovery rods (1) and (1a), and were supported by two movable supports (2a) and (2) on the rail (13). Both ends of the pipe P are fitted in the holes (11) and (11) of the two scavenging material recovery rods (1) and (1a).
A polishing machine (3) is provided on one end side of the pipe P so as to be movable to the other end side. The scouring machine (3) injects the scouring material from the rotating nozzle (31) and cleans the inner surface of the pipe P.
The abrasive material is recovered in both abrasive material recovery rods (1) (1a).
If the pipe P to be cleaned is long or short, it is sufficient to move the movable side cleaning material recovery rod (1) and the support (2) (2a) according to the length of the pipe P.
[0003]
The holes (11) and (11) of the two scoured material recovery rods (1) and (1a) are opened to a size that allows the pipe with the maximum diameter that can be cleaned to fit in enough space. The gap generated between P is closed by the rubber plate (7).
As shown in FIG. 6, the rubber plate (7) has a hole (71) corresponding to the outer diameter of the pipe P, and can be divided into two or multiple pieces on the line including the axis of the hole (71). Has been.
The rubber plate (7) is pressed by the mounting ring (72) and is bolted to the scouring material collecting rod (1).
A rubber plate (7) with a hole (71) that matches the pipe diameter is produced each time.
The height of the support bases (2) and (2a) can be adjusted, and the center of the pipe shaft and the centers of the holes (11) and (11) of the scouring material recovery rods (1) and (1a) can be made to coincide.
Abrasive material sprayed from the end of the pipe P and scattered in the abrasive material recovery rod (1) (1a) is prevented from leaking outside by the rubber plate (7).
[0004]
[Problems to be solved by the invention]
As described above, it is troublesome to manufacture the rubber plate (7) according to the pipe diameter, resulting in high cost. Further, the replacement work of the rubber plate (7) is troublesome and the workability is deteriorated. Further, a rubber plate (7) is attached to the abrasive cleaning agent recovery筺(1)該筺concentrically with the hole (11) of (1a) (1) (1a). For this reason, if the axis of the pipe P and the center of the hole (11) (11) of the scouring material recovery rod (1) (1a) are shifted, the gap between the hole edge of the rubber plate (7) and the pipe P In this case, there is a problem that the gap is partially generated and the abrasive is leaked to the outside.
The present invention clarifies a pipe inner surface cleaning device that can solve the above-mentioned problems.
[0005]
[Means for solving the problems]
The present invention provides a gap closing device for preventing the abrasive from leaking from the gap between the abrasive recovery rod ( 1 ) and the pipe to be polished P fitted in the hole (11) of the rod. ( 4 ) and a sharpening device ( 3 ) for injecting an abrasive to the inner surface of the pipe to be polished P, the abrasive ( 3 ) has an abrasive nozzle ( 3 ). 31) is moved in the tube axis direction while rotating. The gap closing device ( 4 ) is arranged so that the opening edge of one end thereof is substantially concentric with the hole (11) of the scouring material recovery rod ( 1 ). blast material recovered筺 (1) which is fixed to a flexible tubular member (5) and, said cylindrical member (5) tubular members to the free end (5) Roll the cell culture to the cylindrical member in the circumferential direction of (5) And holding means ( 6 ) for holding in a twisted state .
[0006]
Delete [0007]
[Action and effect]
The cylindrical member (5) can be inserted in a state in which the pipe to be cleaned P has a sufficient margin, and if the pipe P can be tightened when the cylindrical member (5) is twisted in the circumferential direction, the other pipe The outer diameter of P does not matter. For this reason, as in the past, it is not necessary to manufacture the rubber plate (7) each time according to the pipe outer diameter, and to attach the rubber plate (7) to the pipe insertion counterpart member (10), thereby reducing the cost. In addition, the work efficiency can be improved.
Even if the axial center of the cylindrical member (5) and the center of the hole (11) of the pipe insertion mating member (10) are slightly shifted, the cylindrical member (5) is twisted at the center of the inner surface of the cylindrical member ( 5 ). Since the pipe can be tightened , accuracy is not required for attaching the cylindrical member (5).
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Figure 1 shows the inner surface Labs sweep apparatus large diameter pipe of the present invention.
Two scouring material recovery rods (1) (1a) are arranged opposite to each other, one of the scouring material recovery rods (1) is fixed in place, and the other scouring material recovery rod (1a) is connected to the rail (13 ) The upper side is provided so as to be able to approach and separate from the fixed side polishing material recovery rod (1).
Holes (11) and (11) in which the ends of the pipes P are fitted in a state with a margin are formed on the opposing surfaces of the two scavenging material recovery rods (1) and (1a).
Two pipe supporters (2) (2a) are movably arranged on the rail (13) between the scouring material recovery rods (1) (1a).
The upper part of the support (2) (2a) is opened in a Y-shape, and the height can be adjusted. The pipe P to be cleaned is placed on the Y-shaped opening to support it. ) holes of (1a) (11) (11 ) center can be supported to align the axis into the.
[0009]
A scouring machine (3) can be inserted into the pipe P from the movable side scouring material recovery rod (1) side.
The scouring machine (3) is axially moved in the pipe P by pushing the scouring material feed pipe (32) connected to the scouring machine (3) and penetrating through the wall of the scouring material recovery rod (1). Moving.
The sharpener (3) can be self-propelled by motor drive.
The scouring machine (3) has a bifurcated nozzle (31) at the tip, and sprays the scouring material from the nozzle onto the inner surface of the pipe while rotating the nozzle.
The abrading machine (3) is a known adjusting mechanism (not shown) that can stably move in the pipe by positioning the nozzle (31) on the axis of the pipe even when the pipe inner diameter varies depending on the type of pipe. )have.
[0010]
A feature of the present invention is that a gap closing device (4) for closing a gap S formed between the hole (11) and the pipe P is provided on the opposing wall surface of the abrasive material recovery rod (1) (1a). .
In the following, the gap closing device (4) on the movable side polishing material recovery rod (1) will be described, but the gap closing device (4) of the fixed side polishing material recovery rod (1a) has the same configuration.
As shown in FIGS. 2 and 3, the gap closing device (4) includes a flexible cylindrical member (5) in which the pipe P is fitted with a margin and one end is fixed to the scouring material collecting rod (1). And holding means (6) that can hold the free end of the cylindrical member (5) at a position twisted on the pipe P.
[0011]
The cylindrical member (5) is formed of a thick woven fabric with a closed eye and is excellent in wear resistance.
Both ends of the cylindrical member (5) are open, and the base end on the attachment side is folded to form a two-layered reinforcing ear (50).
The other end of the cylindrical member (5) is folded to form a bag portion (52) and a two-layer reinforced portion (54). A ring-shaped cored bar (53) is provided in the bag part (52), and eyelets (55) are applied to the reinforcing part (54) at equal intervals in the circumferential direction.
The cored bar (54) is formed by bending an iron round bar into a circle and welding both ends, and does not easily deform.
[0012]
The proximal end reinforcing ear portion (50) of the cylindrical member (5) is bolted and fixed to the flange (1) concentrically with the hole (11) of the abrasive material recovery rod (1) by the retaining ring (51). .
The retaining ring (51) is formed into an endless shape by bending the angle member into an annular shape and welding both ends, and holds the bending reinforcement ear (50) of the cylindrical member (5) on the mounting surface to the housing. The cylindrical member (5) is fixed to the scouring material collecting rod (1).
[0013]
The holding means (6) includes a projecting shaft (61) projecting from the scouring material collecting rod (1) in the vicinity of the cylindrical member (5), and a spring (62) on the projecting shaft (61). It is comprised by the connected hook (63).
The hook (63) can be caught in the hole (56) of the eyelet (55) of the cylindrical member (5).
[0014]
Thus, it retracted in a direction away from the fixed side Labs cleaning agent recovery筺the movable Labs cleaning agent recovery筺(1) (1a), 2 two abutment spacing (2) (2a), stably pipe P Open at a sustainable distance.
Place the pipe P on the support base (2) (2a), move the support base (2) (2a) to the fixed-side scouring material recovery rod (1a), and move the pipe tip to the cylinder on the rod (1a). Fit into the member (5) and fit into the hole (11).
Next, the movable side scouring material recovery rod (1) is advanced, and the other end of the pipe P is fitted into the cylindrical member (5) and the hole (11) on the rod.
Set the scourer (3) to the other end of the pipe.
[0015]
The free end of the tubular member (5) is turned in the circumferential direction of the pipe P to twist the tubular member (5).
Since the core metal (53) that does not easily deform is fitted to the free end of the cylindrical member (5), it is easy to twist and can be evenly twisted over the entire circumference.
By twisting the cylindrical member (5), the cylindrical member (5) is reduced in diameter at a substantially central portion of the cylindrical length to tighten the pipe P, and between the inner surface of the cylindrical member (5) and the pipe P peripheral surface. Prevent gaps.
The hook (63) of the holding means (6) is pulled against the spring (62) and hooked in the hole (56) of the eyelet (55) at the appropriate position of the free end of the tubular member (5). Hold twisted state.
Even if the abrasive is ejected from both ends of the pipe P due to the operation of the abrasive (3) and scattered in the abrasive recovery rod (1) (1a), the pipe P and the hole (11 ) Is blocked, so that the abrasive can be prevented from leaking outside.
[0016]
As long as the pipe member 5 fits in a state where the pipe has a margin and the pipe member P can be tightened when the pipe member 5 is twisted in the circumferential direction, the outer diameter of the pipe P is It doesn't matter. For this reason, as in the prior art, it is not necessary to manufacture the rubber plate (7) each time according to the pipe outer diameter, and to attach the rubber plate (7) to the hole (11) of the mating member (10). Costs can be reduced and work efficiency can be improved.
[0017]
The pipe P can be easily removed from the cylindrical member (5) by removing the hook (63) from the cylindrical member (5) and restoring the twist of the cylindrical member (5).
[0018]
Moreover , in the said Example, although the hook (63) of the holding means (6) was hooked in the hole (56) of the eyelet (55) on a cylinder member (5), on the free end of a cylinder member (5), A hook piece (not shown) may be provided so as to hook the hook 56 on the hook piece.
[0019]
The above description of the embodiments is for explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. In addition, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a polishing apparatus according to the present invention.
FIG. 2 is a perspective view of the gap closing device.
FIG. 3 is a cross-sectional view of the gap closing device.
FIG. 4 is a slope view of the gap closing device in use.
FIG. 5 is a schematic explanatory diagram of a conventional polishing apparatus.
FIG. 6 is an explanatory view of a conventional gap closing means.
[Explanation of symbols]
(1) Abrasive recovery bowl
(2) Support stand
(3) Sharpener
(4) Gap closing device
(5) Tube member
(6) Holding means

Claims (3)

Abrasive recovery kit ( 1 ) And the hole of the spear (11) Gap closing device for preventing the abrasive from leaking through the gap between the pipe to be polished P fitted to the pipe ( 4 ) And a polishing machine for injecting a cleaning material onto the inner surface of the pipe to be polished P ( 3 ) In a pipe cleaning device composed of ( 3 ) Is the abrasive spray nozzle (31) Is moved in the tube axis direction while rotating ( 4 ) The edge of the opening at the one end ( 1 ) Hole (11) So that it is almost concentric with ( 1 ) Flexible cylindrical member fixed to ( 5 ) And the cylindrical member ( 5 ) The free end of the tube member ( 5 ) Rotate in the circumferential direction of the cylinder member ( 5 ) Holding means for holding in a twisted state ( 6 ) Pipe inner surface cleaning device composed of and. Two scouring recovery rods ( 1 ) and (1a) with holes (11) and (11) in which the ends of the scouring pipe P are fitted to each other are arranged opposite to each other so that they can be approached and separated. 2. The polishing apparatus according to claim 1, wherein a pipe support ( 2 ) is provided between the ridges ( 1 ) (1a) . Tube member ( 5 ) At the free end of the ring, a ring-shaped metal core that does not easily deform around the free end (53) And holding means ( 6 ) Hanging holes that form part of (56) Alternatively, the pipe inner surface polishing apparatus according to claim 1, wherein a hook piece is provided.

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