JP2002204997A - Receiving device also used as supply part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly and easily perform the projection supply and reception of a backward passage at the time of reciprocating motion of a pig and to simply perform work. SOLUTION: The receiving device also used as a supply port has a spherical cyclone main body 1 provided with an insertion and extraction port 2 having an openable and closable lid 2a provided in the upper part thereof and a guide pipe 3 connected to a pipe A in a lateral direction through a connection pipe 4, and further, a receiving crosspiece 5, which is almost horizontal with respect to the under surface 3a of the inner wall of the guide pipe 3, is supported within the main body 1 by support pieces 5a. Furthermore, a connection pipe 7 to which an air introducing pipe 6 equipped with a regulation valve 6a is connected, a suction pipe 8 to which a suction device 9 is connected and a discharge pipe 11 equipped with an on-off valve 11a are provided to the main body 1 and the ball pig P inserted on the receiving crosspiece 5 in the main body 1 is supplied toward the guide pipe 3 by cyclone action and the pig P guided from the guide pipe 3 by suction is received on the receiving crosspiece 5 while revolved in the main body by cyclone action.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball pig receiving device which also serves as a supply unit for use in rehabilitating a pipeline.

[0002]

2. Description of the Related Art Water pipes and drain pipes installed in buildings, condominiums, various plants and the like become rusted or corroded when used for a long time, and cannot be used. Therefore, it is desirable to replace the pipe before a failure occurs in the pipe, but replacement of the pipe involves inconvenience such as long-term water cutoff and requires a large amount of cost. Therefore, a method of forming a rust-proof coating on the pipe on the inner surface of the pipe and rehabilitating the pipe without moving the pipe as it is is adopted.

Various methods, such as an extrusion method using compressed air and a suction method using a suction device, are employed for the rehabilitation of these pipelines depending on the purpose and conditions. The extrusion method is to provide a launch tube for supplying the pig at the end of the rehabilitation tube and a compressed air introduction unit, and to extrude the pig supplied from the launch tube by pressure feeding from the rear of the pig, and by a suction method. Things are
An air introduction pipe provided with an open / close valve for taking in air at one end and a catching device connected to a suction device on the other side of the firing tube are provided,
The pig in the pipe supplied by the suction action of the suction force is propelled and moved by the differential pressure before and after the pig.

[0004] In some cases, the pipe of the rehabilitation pipe reciprocates a pig inserted into the pipe in some cases. At this time, a pig firing tube and a suction device are provided at both open ends of the rehabilitation pipe, the pig is moved by the differential pressure by suction of suction force from one side, the pig is received, and the suction direction is again obtained by suction from the other side. To reciprocate. However, the supply of pigs on the return route was not smooth and had a problem.

[0005]

In the rehabilitation of pipes according to the present invention, a pig supply / reception device for smoothly and easily supplying and receiving pigs on the return path during pig reciprocating motion and simplifying the operation is provided. Is what you do.

[0006]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention addresses this problem by providing an opening having an open / close lid on the upper part and a discharge pipe having an open / close valve on the lower bottom plate. And a guide tube for generating a cyclone operation inside the main body is connected to and provided on the side wall surface of the main body, and is disposed in the main body in a substantially horizontal state with the lower surface of the inner wall of the guide tube. A connecting pipe is provided on the side wall of the main body, the connecting pipe being connected to an air introducing pipe provided with a control valve, corresponding to the introduction port of the guide pipe, and a lower bottom plate of the main body is provided on the side wall of the main body.
At the lower part of the support, a suction pipe with a suction port is provided, which is connected to a suction device having an on-off valve, and also serves as a supply unit for generating a cyclone action in the main body by a suction force from the suction device. A ball pig receiving device is provided.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, in rehabilitation of a pipeline, a ball pig supplied into a pipe is moved by a differential pressure in the pipe and a suction force of a suction device, and a cyclone operation is caused when the pig is received and supplied. A ball pig receiving device which also serves as a supply portion for supplying pigs easily and smoothly at the time of receiving and separating the introduced pigs from liquids and the like by a cyclone action and smoothly receiving the pigs on the support. This will be described with reference to FIG. Reference numeral 1 denotes a cylindrical cyclone main body having a spherical shape or a bottom plate 1a, and the main body 1 is installed on a support frame K. (However, this frame K is not limited.) An opening 2 having an opening / closing lid 2a is provided in the upper part of the main body 1 so that the ball pig P to be inserted into the main body 1 through the opening 2 can be taken in and out. I do. Further, a discharge pipe 11 provided with an on-off valve 11a is provided at the center of the bottomed portion of the main body 1, and paints and the like collected by the cyclone action in the main body 1 are discharged and taken out. Further, a guide tube 3 is provided on the side wall of the main body 1 so as to cause a cyclone action. The end of the guide tube 3 is connected via a connection tube 4 having a diameter portion adapted to the diameter of the ball pig P. The rehabilitation pipe A is connected to the open end. In addition, inside the main body 1, a support 5 that is substantially horizontal with the lower surface 3 a of the inner wall of the guide tube 3 is received and arranged by the support 5 a, and the ball pig P in the main body 1 is placed on the support 5.
To accept.

Further, an inlet 3b of the guide tube 3 of the main body 1.
A connecting pipe 7 connected to an air introducing pipe 6 provided with a control valve 6a is provided on the side wall corresponding to the opening 3b so as to face the inlet 3b. A suction pipe 8 is provided so as to be viewed from the end suction port 8a, and the suction pipe 8 is provided by connecting a suction device 9 with an opening / closing valve 10 interposed. The main body 1 is provided with an instrument 13 provided with an on-off valve 12 for measuring the inside of the main body 1.

FIG. 3 shows that the main body 21 of the receiving device also serving as a supply unit is provided at both open ends of the rehabilitation pipe A with a joint pipe 36 to which a paint tank 35 having a connection pipe 24 and an on-off valve 34 is attached. Then, in order to paint the inside of the pipe A in the connected state of use, the ball pig P is inserted from the opening 2 of the main body 1 onto the support 5 in the main body 1, and then all the on-off valves of the main body 1 are closed and The suction device 29 provided on the corresponding side of the supply side of the ball pig P is activated to make the inside of the pipe a negative pressure.
5, paint is further supplied, and further, air is introduced by operating the control valve 6 a of the air supply pipe 6 on the pig supply side, and the ball pig P is guided into the guide pipe 3 by the differential pressure generated before and after the ball pig P. Then, while being propelled and moved in the suction direction by the pipe A to paint the inner surface of the pipe A, it is guided to the guide pipe 23 of the main body 21 on the suction side and is introduced into the main body 21. The pig P moves on the support 25 while rotating along the inner surface of the main body 1, stops on the support 5, and closes the on-off valve 30 of the suction device 29. Furthermore,
When the coating operation is repeated and the pig P is reciprocated in the pipe to complete the coating, the above operation is repeated. Further, the paint tank 15 and the paint discharge pipe 11 are connected, and the paint recovered from the cyclone can be automatically sent to the paint tank 15 again and reused. When the last coating is completed, the paint collected in the main body 1 is taken out from the discharge pipe 11 and the work is completed.

[00010]

According to the ball pig receiving device of the present invention which also serves as the supply portion, the suction operation of the suction device and the cyclone action in the main body are introduced into the rehabilitation pipe from the guide tube to be smoothly supplied. The paint and the pig are swung while being separated by the cyclone action in the main body, moved on the support, received and stopped by the cyclone action in the main body. As described above, there is an effect that the supply and reception can be performed smoothly and easily with one device without any trouble and without any trouble. In addition, by reciprocating the ball pig, there is an effect of eliminating waste that can be performed up to the finishing operation with one ball pig in the painting operation.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of a ball pig receiving device serving also as a supply unit according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is an explanatory view using the present apparatus for a rehabilitation pipe.

[Explanation of symbols]

 1, 21 cyclone body 1a bottom plate 2 opening 2a, 22a opening / closing lid 3,23 guiding tube 3a inner wall lower surface 3b inlet 4,24 connecting tube 5,25 receiving member 5a support piece 6,26 air introduction Pipe 6a Adjustment valve 7 Connecting pipe 8 Suction pipe 8a Suction port 9,29 Suction device 10 Open / close valve 11,31 Discharge pipe 11a, 31a Open / close valve 12 Open / close valve 13 Meter 14,34 Open / close Valves 15, 35 Paint tanks 16, 36 Joint tube A tube K Yarn frame P Ball pig

Claims (1)

[Claims] 1. A cyclone body having a ball pig insertion opening having an opening / closing lid at an upper part thereof and a discharge pipe having an opening / closing valve at a lower bottom plate.
A guide tube connected so as to generate a cyclone action therein is provided, a receiving member disposed substantially horizontally with the lower surface of the inner wall of the guide tube is provided in the main body, and the guide is provided on a side wall of the main body. A connection pipe for connecting an air introduction pipe with a control valve is provided corresponding to the introduction port of the pipe, and a suction pipe is provided on the lower bottom plate of the main body at the lower part of the support so that the suction port can be seen. This suction pipe is connected to a suction device with an on-off valve, a cyclone action is generated in the main body by the suction action, and the ball pig filled in the main body is automatically supplied and reciprocated by the switching action of the suction apparatus. A ball pig receiving device that doubles as a supply unit, characterized in that it has been made possible.