JPH10180167A - Resin recovery device combined with resin injection function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device combining resin injection with resin recovery. SOLUTION: This resin recovery device 1 combined with a resin injection function comprises a cylindrical part 2 which internally stores a resin A, a lower lid 3 which is mounted at the lower opening part of the cylindrical part 2 and has a resin outflow aperture 31, an upper lid 4 which is mounted at the upper opening part of the cylindrical part 2 and has a fluid introduction aperture 41 and a resin recovery means 11 which is fitted inside the cylindrical part 2 in such a way that the means 4 covers the fluid introduction aperture 41. When an operation to line the internal wall of an existing tubular path 5, the resin outflow aperture 31 is made to communicate with an opening part 51 on one of the ends of the tubular path 5 and the resin A is introduced into the tubular path 5. Next, the fluid introduction aperture 41 is made to communicate with an opening part 52 on the other end of the tubular path 5, and the resin A is recovered into the resin recovery means 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the use of a resin injection device used for lining existing pipes such as gas pipes with resin as a resin recovery apparatus.

[0002]

2. Description of the Related Art Conventionally, as a method for rehabilitating an existing pipeline buried underground, a resin lining method of forming a resin film such as an epoxy resin on the inner surface of the pipeline, or a method of bonding an inner surface of a pipeline using an adhesive resin. There is a lining method for attaching a tube. In all of these lining methods, resin is introduced into the pipeline from the opening of the pipeline once, and excess resin is collected from the opening at the other end of the pipeline to prevent poor supply due to hygiene and resin clogging. I am trying to do it.

As an example of the above conventional example, the present applicant has proposed a lining method as shown in FIG. In this method, as shown in FIG. 4, a resin collecting device b and a suction pump c are communicated with the other end opening a1 of the pipe a, and the liquid shielding pig (from the one end opening a2 of the existing pipe a) is inserted into the pipe. Then, the resin injection device d is communicated, and the suction pump c is operated to introduce the resin into the pipeline. Thereafter, the resin injection device d is removed, the end of the lining tube e is invertedly mounted on one end opening a2 of the conduit, and the suction pump c is operated again to adhere the tube e to the inner surface of the conduit while reversing the tube e. Go. Then, stick the tube on the entire length of the existing pipeline,
After the surplus resin is collected in the resin collecting device b, hot water is circulated in the duct to cure the resin.

[0004]

However, in the above-mentioned construction method, since two relatively large devices of a resin injection device and a resin recovery device are required, a vehicle for transporting these devices does not need to be large. And a great deal of effort is required to load and unload these devices.

[0005] The present invention has been devised to solve the above problems, and has as its object to provide an apparatus capable of performing both resin injection and resin recovery.

[0006]

In order to achieve the above-mentioned object, the present invention is a resin injection / collection apparatus which uses a resin injection apparatus used at the start of lining of an existing pipeline as a resin recovery apparatus. The above-mentioned resin injecting / collecting device is provided with a body in which resin is mounted, a lower lid having a resin outlet mounted on a lower opening of the body, and a lower lid having a resin outlet, and being mounted on an upper opening of the body, and introducing a fluid. An upper lid having a mouth, inside the body, resin recovery means attached to cover the fluid introduction port, and at the start of lining, the resin outlet is communicated with one end opening of the existing pipeline. The resin is introduced into the existing pipeline, and thereafter, the fluid introduction port is communicated with the other end opening of the existing pipeline, so that the resin is recovered in the resin recovery means.

According to a second aspect of the present invention, there is provided a resin injection / recovery apparatus for use as a resin recovery apparatus, wherein the resin injection apparatus used for the lining of an existing pipeline is used at the time of hardening work after the installation of the lining. The hot water is introduced into the pipe from one end of the pipe, and the other end of the pipe is connected to the resin injection / collection device, and the resin remaining in the pipe during the circulation of the hot water is collected by the resin injection / collection device. It is characterized by being configured to be collected.

[0008] The resin collecting means is a bag having water permeability, specifically, a hemp bag.

Further, the body, the lower lid, the upper lid, and the resin collecting means are made of polyethylene, and are further configured to be detachable.

[0010]

When the lining is started, the resin injection and recovery device according to the present invention is mounted so that the resin outlet is communicated with one end opening of the existing pipeline, and the resin is injected into the existing pipeline. And remove it after the injection is complete,
It is mounted so that the fluid introduction port communicates with the other end opening of the existing pipeline. Then, lining is applied, and excess resin is collected into the resin collecting means from the fluid inlet. As a result, since the resin can be used as a resin recovery device after the resin is injected, transportation and transportation can be facilitated, and the cost of the device configuration can be reduced.

According to the second aspect of the present invention, at the time of resin hardening work (warm water circulation work) after the lining construction, a fluid inlet is connected to the other end opening of the pipe to collect and collect the resin. Is provided, the resin residue staying in the warm water can be collected in the resin collecting means.

According to the third and fourth aspects of the present invention,
By making the resin collecting means a bag having water permeability, specifically, an inexpensive hemp bag, handling is simple and the price can be reduced.

Further, according to the present invention, since the apparatus is made of polyethylene, the adhered resin can be easily peeled off, and the apparatus can be reused. Further, since the whole can be detached, cleaning becomes easy.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. 1A and 1B are explanatory views of a resin injection and recovery device of the present invention, wherein FIG. 1A is an exploded perspective view and FIG. 1B is a side view. As shown in FIG.
It is composed of a body part 2 containing resin, a lower lid 3, an upper lid 4, and resin collecting means 11.

The body 2 is formed of a polyethylene material in the shape of a cylindrical tube, and is provided with a piston (not shown) for moving the body 2 up and down when resin is injected. ing. The lower lid 3 is formed of a polyethylene material similarly to the body 2, and is formed in a circular shape so as to cover a lower opening of the body 2. In addition, lower cover 3
Is provided with a resin outlet 31 through which resin contained in the body 2 flows out.

The upper lid 4 is formed of a polyethylene material similarly to the body 2, and is formed in a circular shape so as to cover an upper opening of the body 2. The upper lid 4 is provided with a fluid introduction port 41, and a locking piece 42 is formed integrally with the fluid introduction port 4 so as to project into the body 2. Further, the upper lid 4 is provided with a pressure detection port 43 for detecting the pressure in the resin injection and recovery device 1, and a pressure gauge 45 is mounted.

The resin collecting means 11 is a hemp bag having water permeability, and is locked by a string or the like to the locking piece of the upper cover 4, and accommodates the resin flowing from the fluid introduction port 41 in the resin collecting means. It is configured to be.

Next, the operation of the resin injection and recovery apparatus 1 configured as described above will be described with reference to FIGS. First, one end opening 5 of the construction target pipe 5 buried underground
The liquid-introducing pig 6 is introduced into the conduit 5 from 1, and communicates with the resin outlet 31 of the resin injection and recovery apparatus 1 of the present invention in which the resin A is installed so that the resin can flow into the conduit 5. In addition, the suction pump 7 is connected to the other end opening 52 of the pipe 5, and by operating the suction pump 7, a piston (not shown) moves and resin A flows into the pipe 5.

After the inflow of the resin A is completed, the suction pump 7 is temporarily stopped, and as shown in FIG. 2, the resin injection and recovery device 1 is removed from the one end opening 51 of the pipe 5 and the inversion tube 8 is removed. The reversing device 9 is mounted on the one end opening 51 by being invertedly mounted on the one end opening 51. Then, the piston of the resin injection / collection apparatus 1 is removed, the resin collection means 11 is attached, and the fluid introduction port 41 and the other end opening 52 of the pipe are in communication with each other. The suction pump 7 is connected to 31 and the suction pump 7 is operated again.

In this way, the liquid shielding pig 6 and the resin A move from the one end opening 51 of the pipe 5 to the other end opening 52 side, and together with the lining tube 8 being inverted,
It is stuck on the inner surface of the pipe 5. Finally, the liquid shielding pig 6 and the resin A are recovered in the resin recovery means 11 of the resin injection and recovery device 1.

Next, in order to harden the lining tube 8 adhered to the inner surface of the pipe 5, hot water is circulated in the pipe 5. As shown in FIG. 3, this hot water circulating operation brings the other end opening 52 of the pipe line 5 to which the lining tube 8 is reverse-adhered and the fluid introduction port 41 of the resin injecting and collecting device 1 into communication with each other. The hot water tank 10 is communicated with the resin outlet 31 of the injection / collection device 1. Then, hot water is pumped from the hot water tank 10 to one end opening 51 of the pipe line 5 by using the suction / pressure pump 7.

In this way, the hot water in the hot water tank 10 flows into the pipe line 5 on which the lining tube 8 is reversely adhered from one end opening 51, and is sent to the other end opening 52 by pressure, and the resin is injected. After passing through the combined recovery device 1, the hot water tank 10
Is returned to. In this way, hot water is circulated in the pipe 5 during the time required for the resin to cure. At that time, the resin stagnation staying in the pipe 5 is discharged from the other end opening 52 of the pipe 5 and collected in the resin collecting means 11. At this time, the pressure in the pipe line 5 can be monitored by the pressure gauge 45.

[0023]

As described above, the resin injecting and collecting apparatus according to the present invention is mounted at the beginning of the lining so that the resin outlet is communicated with one end opening of the existing pipeline, and is installed in the existing pipeline. The resin is introduced, removed after the injection is completed, and mounted so that the fluid introduction port communicates with the other end opening of the existing pipeline. Then, lining is applied, and excess resin is collected into the resin collecting means from the fluid inlet. As a result, since the resin can be used as a resin recovery device after the resin is injected, transportation and transportation can be facilitated, and the cost of the device configuration can be reduced.

According to the second aspect of the present invention, at the time of the resin curing operation (hot water circulation operation) after the lining construction, the fluid introduction port is communicated with the other end opening of the pipeline to collect and collect the resin. Is provided, the resin residue staying in the warm water can be collected in the resin collecting means.

According to the third and fourth aspects of the present invention,
By making the resin collecting means a bag having water permeability, specifically, an inexpensive hemp bag, handling is simple and the price can be reduced.

Further, according to the present invention, since the apparatus is made of polyethylene, the adhered resin can be easily peeled off, and the apparatus can be reused. Further, since the whole can be detached, cleaning becomes easy.

[Brief description of the drawings]

FIG. 1A is an exploded perspective view of a resin injection / collection device of the present invention. (B) It is a side view of the resin injection and combined use recovery apparatus of this invention.

FIG. 2 is an operation explanatory view of the resin injection and recovery device of the present invention.

FIG. 3 is an operation explanatory view of the resin injection and recovery device of the present invention.

FIG. 4 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 resin injecting and collecting apparatus 11 resin collecting means 2 body 3 lower lid 31 resin outlet 4 upper lid 41 fluid introduction port 42 locking piece 43 pressure detection port 45 pressure gauge 5 pipeline 51 one end opening 52 other end opening 6 Liquid shielding pig 7 Suction pump 8 Lining tube 9 Reversing device 10 Hot water tank

Claims (5)

[Claims] 1. A resin injection / collection device that uses a resin injection device used at the start of lining of an existing pipeline as a resin recovery device, wherein the resin injection / collection device includes a body part containing a resin, A lower lid attached to the lower opening of the body portion and having a resin outlet; an upper lid attached to the upper opening of the body portion and having a fluid inlet; and the fluid inlet inside the body. A resin collecting means mounted so as to cover the resin pipe, and at the start of the lining, the resin outlet is communicated with one end opening of the existing pipe to introduce the resin into the existing pipe; Wherein the fluid introduction port is communicated with the other end of the resin collecting means to collect the resin in the resin collecting means. 2. A resin injecting and collecting apparatus which uses a resin injecting device used for lining of an existing pipeline as a resin collecting device, wherein one end of the pipeline is used at the time of hardening work after construction of the lining. More hot water is introduced into the pipeline, the other end side communicates with the resin injection / collection device, and the resin remaining in the pipeline during hot water circulation is collected by the resin injection / collection device. 2. The resin injection and recovery device according to claim 1, wherein 3. The resin injecting and collecting apparatus according to claim 1, wherein the resin collecting means is a bag having water permeability. 4. The fat injection and recovery apparatus according to claim 1, wherein said resin recovery means is a hemp bag. 5. The grease injecting and collecting apparatus according to claim 1, wherein the body, the lower cover, the upper cover, and the resin collecting means are made of polyethylene and are detachably configured. .