JP2000351157A - Pipe lining material inverting apparatus and pipe lining technique - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe lining material inverting apparatus which can maintain and invert a pipe lining material. SOLUTION: A pipe lining material inverting apparatus 10 is constituted by freely rotatably storing a pipe lining material winding reel 12 prepd. by winding a pipe lining material 9 prepd. by being impregnated with an uncured thermosetting resin under a condition where it is placed between heat insulation sheets (insulation sheets) 20 and a sheet winding reel 13 for winding the heat insulation sheet (the insulation sheet) in the same hermetically sealed space S in a heat insulation container 11. The pipe lining material 9 pinched with the heat insulation sheets (or the insulation sheets) 20 is stored in the hermetically sealed space S of the pipe lining material inverting apparatus while it is kept under a heat insulation (or insulation) condition and by feeding a fluid pressure (air pressure) into this hermetically sealed space S, the pipe lining material 9 is inverted and this can be inserted into a pipeline.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe lining material reversing device for reversely inserting a pipe lining material impregnated with an uncured thermosetting resin into a pipe, and a pipe constructed using the same. Related to lining method.

[0002]

2. Description of the Related Art When a pipeline such as a sewer pipe is deteriorated, a pipe lining method for repairing the pipeline by lining the inner peripheral wall of the pipeline without bending the pipeline from the ground has been proposed. It is already in practical use.

[0003] One of such pipe lining methods is as follows.
After the tube lining material made by impregnating the uncured thermosetting resin into the tubular resin adsorbent is invertedly inserted into the pipe, the pipe lining is supplied by the fluid pressure supplied into the closed space including the inside of the tube lining material. A method is known in which a material is expanded and pressed against an inner wall of a pipe, and the pipe lining material is heated by a heat medium to cure the thermosetting resin impregnated therein. .

[0004] By the way, the pipe lining material is housed in a cold storage container in a state of being wound with a cold insulating sheet interposed therebetween so that the thermosetting resin impregnated in the pipe lining material is not cured before construction. JP-A-6-335970). And
At the time of lining the pipe, the pipe lining material and the cold insulation sheet were taken out of the cold storage container, separated from each other, and the pipe lining material was inverted and inserted into the pipe by fluid pressure.

[0005]

However, since the storage and reversal of the pipe lining material are conventionally performed by separate devices, there has been a problem that the configuration and operation of the device are complicated and the construction cost is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a pipe lining material reversing device capable of storing and reversing a pipe lining material and a pipe lining using the same. An object of the present invention is to provide a pipe lining method capable of reducing work costs by improving workability.

[0007]

In order to achieve the above-mentioned object, the invention according to claim 1 provides a pipe lining material impregnated with an uncured thermosetting resin in a state where the pipe lining material is sandwiched between a cooling sheet or a heat insulating sheet. A tube lining material reversing device is configured by rotatably storing a wound tube lining material winding reel and a sheet winding reel for winding the cold insulation sheet or the heat insulating sheet in the same closed space. And

According to a second aspect of the present invention, in the first aspect, a hydraulic pressure is used as a drive source for the tube lining material take-up reel and the sheet take-up reel.

According to a third aspect of the present invention, in the first or second aspect, the driving torque of the sheet take-up reel is set smaller than the driving torque of the tube lining material take-up reel. .

According to a fourth aspect of the present invention, in the third aspect, a torque limiter is provided in a driving system of the sheet take-up reel.

According to a fifth aspect of the present invention, in the first aspect of the present invention, the closed space is formed in a cold storage container, and a pipe lining material outlet is formed in a part of the cold storage container. A highly airtight tubular inversion guide, which is entirely transparent or translucent, is hermetically attached to the pipe lining material outlet.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, an opening is formed in the cooling container, and a transparent plate is attached to the opening.

According to a seventh aspect of the present invention, there is provided a tube lining material take-up reel formed by winding a tube lining material impregnated with an uncured thermosetting resin while sandwiching the tube lining material with a cooling sheet or a heat insulating sheet. As a pipe lining method implemented using a pipe lining material reversing device constituted by rotatably storing a cold storage sheet or a sheet take-up reel for winding a heat insulating sheet in the same enclosed space, the pipe lining material inversion method is used. The tube lining material wound around the tube lining material take-up reel of the device is sent out, and the cold insulation sheet or the heat insulating sheet is wound from the tube lining material take-up reel onto the sheet take-up reel, and supplied to the closed space. After the pipe lining material is inverted and inserted into the pipe by fluid pressure, the pipe lining material is expanded by fluid pressure and pressed against the inner wall of the pipe. State, characterized in that the tube liner was set to cure the thermosetting resin impregnated thereto and heated by a heating medium.

According to an eighth aspect of the present invention, in the seventh aspect of the present invention, heated air and steam are used as the heat medium, and these are discharged from the discharge hose drawn into the pipe lining material to the inside of the pipe lining material. Is discharged.

A ninth aspect of the present invention is characterized in that, in the eighth aspect of the invention, the heated air and steam are circulated in a circulation path including the inside of the pipe lining material.

According to a tenth aspect of the present invention, in the invention according to the seventh aspect, a part of the tube lining material reversing device is constituted by a transparent plate, and an internal state of the tube lining material reversing device is changed via the transparent plate. It is characterized by monitoring from outside.

Therefore, according to the first or seventh aspect of the present invention, the pipe lining material sandwiched between the cold insulating sheets or the heat insulating sheets is stored in the closed space of the pipe lining material reversing device while keeping the cooling or heat insulating state. Fluid pressure is supplied to this closed space to invert the pipe lining material and insert it into the pipe, so that the pipe lining material can be stored and inverted by the pipe lining material inversion device. Simplifies the lining workability and reduces the lining construction cost.

According to the second aspect of the present invention, since hydraulic pressure is used as a drive source for the tube lining material take-up reel and the sheet take-up reel, the drive torque of these reels can be easily adjusted.

According to the third or fourth aspect of the present invention, the driving torque of the sheet take-up reel is set to be smaller than the drive torque of the tube lining material take-up reel. The take-up speed of the tube is increased, and even if the take-up speed exceeds the sending speed of the tube lining material from the tube lining material take-up reel, a slip occurs on the sheet take-up reel or the sheet take-up reel is stopped. Since the sheet winding speed and the tube lining material sending speed are kept equal, there is no need to adjust the speed of the sheet winding reel, and the configuration of the tube lining material reversing device is simplified.

According to the fifth aspect of the present invention, it is possible to externally monitor the delivery state of the pipe lining material from the cold storage container through the transparent or translucent reversing guide.

According to the invention described in claim 6 or 10, the internal state of the pipe lining material reversing device can be monitored from the outside via the transparent plate.

According to the eighth aspect of the present invention, since the heating air and steam are used as the heat medium for heating the pipe lining material, the specific heat of the heat medium is increased, and the pipe lining material can be efficiently and quickly stored. Heated.

According to the ninth aspect of the present invention, since the heating air and the steam as the heat medium are circulated in the closed loop circulation path, efficient heating can be realized without wasting heat energy. As a result, a circulating flow of heated air and steam is formed inside the pipe lining material, so that the pipe lining material is uniformly heated and hardened uniformly.

[0024]

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

FIG. 1 is a cross-sectional view showing a pipe lining material reversing operation using the pipe lining material reversing device according to the present invention, FIG. 2 is a cross-sectional view of the pipe lining material reversing device, and FIG.
FIG. 4 is a cross-sectional view taken along the line BB of FIG. 3, FIG. 5 is a cross-sectional view of a reversing end portion of the pipe lining material, and FIG. 6 is a cross-section showing a reversing insertion operation of the pipe lining material into a pipe. FIG. 7 is a sectional view showing a hardening operation of the pipe lining material, and FIG.
It is a C-line enlarged sectional view.

In FIG. 1, reference numeral 1 denotes a pipeline such as a sewer pipe buried in the ground, and 2 denotes a manhole which is open to the ground.
A 90 ° elbow-shaped pipe lining material mounting nozzle 3 is installed at the bottom of the inside. A lower end of a flexible guide tube 4 is attached to an outer periphery of an upper end opening of the pipe lining material attaching nozzle 3, and an upper end of the guide tube 4 is attached to an outer periphery of a top nozzle 5 installed on the ground. A sealing lid 7 is hermetically attached to the upper surface of the top nozzle 5 by a plurality of G clamps 8 with a packing 6 interposed therebetween. The pipe lining material mounting nozzle 3 and the top nozzle 5 are made of a metal such as iron, stainless steel, aluminum or the like, or fiber reinforced plastic (FRP).

The pipe line 1 of the pipe lining material mounting nozzle 3
One end of a pipe lining material 9 is attached to the outer periphery of the end opening horizontally toward the outside by being folded outward.
The tube lining material 9 is configured by impregnating a thermosetting resin into a tubular resin adsorbing material 9b whose outer surface is covered with a highly airtight plastic film 9a (see FIGS. 3 and 4). The tube lining material mounting nozzle 3 and the guide tube 4 may be omitted, and one end of the tube lining material 9 may be directly mounted on the top nozzle 5.

Here, as the tubular resin adsorbing material 9b constituting the pipe lining material 9, a non-woven fabric made of a plastic fiber such as polyester, vinylon or acrylic is used, and as the plastic film 9a coated on the outer surface thereof, A composite film containing polyurethane, polyethylene, vinylon, EVA or EVOH is used.

As the thermosetting resin impregnated in the tubular resin adsorbing material 9b, unsaturated polyester resin, vinyl ester resin, epoxy resin or the like is used. When an unsaturated polyester resin or vinyl ester resin is used as the thermosetting resin, an organic peroxide is used as a curing agent (catalyst), and a metal powder such as cobalt or manganese is used as a curing accelerator. In this case, a coated metal powder whose surface is coated with a coating material that melts at a certain temperature may be used. As the organic peroxide, it is desirable to use cumene hydroperoxide alone or a mixture with another kind of organic peroxide. Further, silica, magnesium oxide, talc, aluminum hydroxide, alumina, glass beads, or the like may be mixed as a filler with the thermosetting resin.

On the other hand, as shown in FIG. 1, a pipe lining material reversing device 10 according to the present invention is installed on the ground, and as shown in detail in FIG.
Is a tube lining material take-up reel 12 inside a cool container 11.
And the sheet take-up reel 13 are rotatably accommodated, a refrigerator 14 is installed on the cool container 11, and the compressor 15 is further connected to the cool container 11 via an air hose 16.
It is configured to be connected to. The tube lining take-up reel 12 and the sheet take-up reel 13 are driven to rotate by a hydraulic motor (not shown).

The cooling container 11 has a pressure of 0.2 kg / cm.
^The cooling pipes 17, 1, which are made of a heat insulating material capable of withstanding ² to 1.5 kg / cm ² , are drawn from the refrigerator 14.
The pipes 8 and 19 are connected to the inside and the wall of the cool container 11 and to the center of the rotating shaft 12a of the tube lining material take-up reel 12. Therefore, the cooling pipes 17 to 19 are supplied from the refrigerator 14.
The inside of the cold storage container 11 and the wall and the rotating shaft 12a of the tube lining material take-up reel 12 are cooled by the refrigerant flowing through the inside, respectively. The temperature is kept low enough not to cure. In addition, as shown in FIG.
Are formed with two circular openings 11a and 11b in their side walls. These openings 11a and 11b are made of glass or a plastic such as acrylic, vinyl chloride or the like and have a high pressure-resistant circular transparent plate (a sight glass). ) 55, 56
Are respectively attached.

By the way, the pipe lining material 9 before inversion is wound around the pipe lining material take-up reel 12 in the cold storage container 11, and at this time, as shown in FIGS. The inner and outer peripheral surfaces are sandwiched between cold insulating sheets (or heat insulating sheets) 20 to keep them cool (or heat insulating)
It is kept in. In addition, the cold insulation sheet (or heat insulation sheet) 2
Numeral 0 is composed of organic fibers such as hemp and cotton, and plastic fibers such as polyester, acrylic and nylon. When used, the water impregnated therein is frozen.

A tape-lined pipe lining material take-out guide 21 is attached to a pipe lining material outlet 11c formed at one end of the cold storage container 11, and as shown in FIG. The take-out guide 21 and the sealing lid 7 are connected by a reversing guide 22. Accordingly, a closed space S is formed in the cold storage container 11 in which the reversing guide 22, the guide tube 4, the pipe lining material mounting nozzle 3 and the pipe lining material 9 are hermetically sealed.

The reversing guide 22 is partially or entirely made of a transparent or translucent hose or pipe with high airtightness, and is made of transparent or translucent vinyl chloride reinforced with reinforcing ribs. A transparent or translucent plastic film reinforced with a woven or nonwoven fabric is used.

The tube lining material 9 pulled out of the tube lining material take-up reel 12 in the cold storage container 11 of the tube lining material reversing device 10 is guided by the guide roller 23, and the tube lining material take-out guide 21 is inverted. Guide 2
2. Guide tube 4 and nozzle for mounting pipe lining material 3
And one end thereof is folded back outward as described above, and is attached to the outer periphery of one end opening of the nozzle 3 for attaching a pipe lining material.

Then, from the state shown in FIG. 1, the compressor 15 installed on the ground is driven to supply compressed air through the air hose 16 to the pipe lining material reversing device 10.
Is supplied into the closed space S formed in the cold storage container 11 of FIG.
As shown by the broken line in FIG. By the reversal insertion of the pipe lining material 9 into the pipe line 1, the pipe lining material 9 wound around the pipe lining material take-up reel 12 provided in the cold storage container 11 of the pipe lining material reversing device 10 is sequentially sent out. At the same time, the cold insulation sheet (or heat insulating sheet) 20 covering the inner and outer peripheral surfaces of the tube lining material 9 is separated from the tube lining material 9 and wound around the sheet take-up reel 13. In this reversing operation, the delivery state of the pipe lining material 9 from the cool container 11 can be externally monitored via the transparent or translucent reversing guide 22. In addition, the internal condition of the tube lining material reversing device 10 in the cold storage container 11 (the state of feeding the tube lining material 9 from the tube lining material take-up reel 12 and the transfer of the cold insulating sheet (or heat insulating sheet) 20 to the sheet take-up reel 13). Winding status)
Can be monitored from outside through the transparent plates 55 and 56 as sight glasses. Note that another fluid pressure such as water pressure may be used for the reverse insertion of the pipe lining material 9 into the pipe line 1.

When the tube lining material take-up reel 12 and the sheet take-up reel 13 are driven at the same rotation by a hydraulic motor (not shown) in the tube lining material reversing device 10, the tube lining material 9 enters the pipe 1. As the reversal insertion proceeds, the sending speed of the pipe lining material 9 from the pipe lining material take-up reel 12 gradually decreases,
Since the winding speed of the cold insulation sheet (or the heat insulating sheet) 20 on the sheet winding reel 13 gradually increases, it is conventionally necessary to adjust the rotation speed of the sheet winding reel 13 in accordance with the sending speed of the tube lining material 9. there were.

Therefore, in the present embodiment, the driving torque of the sheet take-up reel 12 is changed to the tube lining material take-up reel 13.
The winding speed of the cold insulation sheet (or heat insulating sheet) 20 on the sheet take-up reel 13 increases as the lining operation progresses, and this winding speed is controlled by the pipe lining material of the pipe lining material 9. Even if the delivery speed from the take-up reel 12 is exceeded, the sheet take-up reel 13 slips or the sheet take-up reel 13 stops and the take-up speed of the cold insulation sheet (or heat insulation sheet) 20 and the pipe lining material 9 And the sending speed of the same. As a result, the speed adjustment of the sheet take-up reel 13 becomes unnecessary,
The reversing operation is facilitated, and the configuration of the tube lining material reversing device 10 is simplified. In the present embodiment, since hydraulic pressure is used as a drive source for the pipe lining material take-up reel 12 and the sheet take-up reel 13, the supply path of the hydraulic pressure is switched by a valve so that the sheet take-up reel 13 is used.
Can be easily adjusted. Further, a torque limiter that interrupts the transmission of the driving force to the sheet take-up reel 13 when a load equal to or more than the set value acts on the sheet take-up reel 13 may be provided in the drive path of the sheet take-up reel 13.

As described above, when the pipe lining material 9 is sequentially inverted and inserted into the pipe line 1 as described above, the inverted end of FIG.
Hot water circulation hose 2 bent in a U-shape as shown in
4 and a discharge hose 25 having one end opened are attached by a rope 26, respectively. Here, the hot water circulation hose 24 and the discharge hose 25 air-tightly penetrate the upper sealing lid 28 via the sealing member 27, and the upper sealing lid 28 through which the hot water circulation hose 24 and the discharge hose 25 penetrate is shown in FIG.
As shown in the figure, the plurality of G clamps 8 air-tightly attach to the upper surface of the top nozzle 5. As a result, a closed space S 'is formed inside the upper closed lid 28, the top nozzle 5, the guide tube 4, and the pipe lining material 9.
As the hot water circulation hose 24, a rubber hose having a circular cross section and an inner diameter of 8 m / m to 60 m / m having a resistance to an external force is used.

As shown in FIG. 6, a compressor 30 installed on the ground is connected to a fluid discharge hose (air hose) 29 connected to the pipe lining material mounting nozzle 3. Note that a pressure gauge 31 for measuring the internal pressure of the closed space S ′ is attached to the upper closed lid 28.

Then, when the compressor 30 is driven from the state shown in FIG. 6 to supply compressed air into the closed space S ′ via the fluid discharge hose (air hose) 29, the pipe lining material 9 reduces the pressure of the compressed air. The hot water circulation hose 24 and the discharge hose 25 attached to the inversion end of the pipe lining material 9 are further inserted into the pipe line 1 while receiving and reversing, as shown in FIG. It is sequentially drawn in.

When the pipe lining material 9 is inserted over the entire length of the pipe 1 as shown in FIG. 7, the hot water circulation hose 2 attached to the inverted end of the pipe lining material 9 is inserted.
The hose 4 and the discharge hose 25 are drawn into the pipe lining material 9, and the hot water circulation hose 24 and the discharge hose 25 are arranged at the bottom of the pipe lining material 9 as shown in FIG. 8. Here, the discharge hose 25 has an inner diameter of 8 m / m to 80 m / m.
A rubber hose having a circular section of m is used, and a plurality of discharge ports (not shown) are formed at appropriate intervals over the entire length.

As shown in FIG. 7, one end of the discharge hose 25 drawn into the pipe lining material 9 is open in a closed space S 'as shown in FIG. An end extending outside the space S ′ is connected to a heat exchanger 33 provided in a hot water tank 32 installed on the ground.
Is connected to one end.

Hot water is stored in the hot water tank 32, and one end of the hot water circulation hose 24 extends from a lower side wall of the hot water tank 32, and a hot water pump 34, a boiler 35 and a valve 36 Is provided.
The other end of the hot water circulation hose 24 is opened above the hot water tank 32 as shown in FIG.
4. The hot water tank 32, the hot water pump 34, the boiler 35 and the like constitute a heating unit. In addition, a thermometer 37 for detecting the temperature of the hot water is attached to a side wall of the hot water tank 32.

A fluid discharge hose 29 extending from the pipe lining material mounting nozzle 3 extends to the ground through the manhole 2, and has one end connected to the other end of the heat exchanger 33 provided in the hot water tank 32. It is connected to the. A valve 38 and a blower fan 39 are provided in the middle of the fluid discharge hose 29, and an air hose 40 branching from the middle of the fluid discharge hose 29 is connected to a compressor 41, and an air hose 4 derived from the compressor 41.
2 is connected to a fluid discharge hose 29. Incidentally, valves 43 and 44 are attached to the middle of the air hoses 40 and 42, respectively. The blower fan 39 is driven to rotate by an electric motor 45.

On the other hand, a steam generator 46 is installed on the ground, and hot water is introduced into a container 47 of the steam generator 46 through a hot water pipe 48 branched from the hot water circulation hose 24. The steam generated in the container 47 by the heating of the hot water by the electric heater 49 is a predetermined amount (a necessary and sufficient amount for increasing the humidity of the heated air) from the steam hose 50 to the middle of the discharge hose.
Only supplied. Here, the steam hose 50 is wound around a part of the discharge hose 25 as shown in the figure, and the part is covered with a tubular heat insulating material 51. The hot water pipe 48 and the steam hose 50 have valves 52, 5
3 are provided, and a thermometer 54 for measuring the temperature of the hot water in the container 47 is attached to the side of the container 47.

In the state shown in FIG. 7, compressed air is introduced from the compressor 41 into the fluid discharge hose 29 via the air hose 42, and this compressed air is supplied into the closed space S 'and The lining material 9 is expanded and pressed against the inner wall of the pipeline 1. At this time, a closed loop is formed by the closed space S ′ and the discharge hose 25, the fluid discharge hose 29, and the heat exchanger 33 connected thereto,
These constitute a circulation path of the heated air and the steam, and the circulation path includes a blower configured by the blower fan 39. Incidentally, the internal pressure of the closed space S 'is set to ^{0.3kg / cm 2 ~1.2kg / cm 2} .

Then, the pipe lining material 9 pressed against the inner wall of the pipe line 1 is heated by the heated air and steam circulating in the above-mentioned circulation path, and the thermosetting resin impregnated therein is cured. The flow rate of heated air and steam was 1
00 liter / min-3000 liter / min, pressure 50m
It is preferable to circulate at a mAq to 3000 mmAq.

When the pipe lining material is cured, the hot water pump 34, the boiler 35, the steam generator 36 and the blower fan 39 are driven, and the heated air is supplied to the heat exchanger 33 in the hot water tank 32 at a temperature of 60.degree. ° C
Is heated to a predetermined temperature by heat exchange with hot water, steam supplied from a steam hose 50 is added to the heated air while flowing through the discharge hose 25, and a mixture of heated air and steam is formed in the discharge hose 25. The plurality of discharge ports (not shown) are uniformly discharged over the entire length into the inside of the pipe lining material 9 to uniformly heat the pipe lining material 9 over the entire length. In addition, the temperature of the heating air and steam used for heating the pipe lining material 9 is set to 60 ° C to 130 ° C.

At the same time, the hot water in the hot water tank 32 circulates through the hot water circulation hose 24 by the hot water pump 34, is heated to a predetermined temperature by the boiler 35 on the way, and is circulated at the bottom of the pipe lining material 9. Hose 24
During the flow, the bottom in the pipe lining material 9 is heated, and the heated hot water is returned to the hot water tank 32, and the same operation is repeated thereafter.

Since the steam discharged from a discharge port (not shown) formed in the discharge hose 25 and used for heating the pipe lining material 9 is cooled to a saturation temperature or lower, it is liquefied and becomes a liquid. Even if hot water accumulates at the bottom of the pipe 9, the hot water is heated by the hot water flowing through the hot water circulation hose 24 inside the pipe lining material 9. Further, since the heated air and the steam flowing through the discharge hose 25 are also heated by the steam flowing through the steam hose 50 wound around a part of the discharge hose 25, there is a possibility that the steam is cooled to a saturation temperature or less and liquefied. Even if steam is liquefied, the heating medium is not a single steam but a mixture of heated air and steam, and the steam occupies a small amount in this mixture. A large amount of hot water does not accumulate at the bottom of the material 9.

The heated air and steam supplied for heating the pipe lining material 9 are sucked by the blower fan 39 and flow from the inside of the pipe lining material 9 to the fluid discharge hose 29, and from the fluid discharge hose 29 to the hot water tank 32. While flowing through the heat exchanger 33 in the inside, it is reheated by heat exchange with hot water, and thereafter, similarly, the heating air and steam continuously circulate in the circulation path, so that the pipe lining material 9 is made uniform by the heating air and steam. Then, the thermosetting resin impregnated in the pipe lining material 9 is hardened, and the inner wall of the pipe line 1 is lined and repaired by the hardened pipe lining material 9.

Thus, in the present embodiment, the closed space S of the pipe lining material reversing device 10 is maintained by keeping the pipe lining material 9 sandwiched between the cold insulating sheets (or heat insulating sheets) 20 in a cold (or heat insulating) state. And store it in
An air pressure is supplied to the closed space S to supply the pipe lining material 9.
To insert it into the pipeline 1
The pipe lining material 9 is rotated by the pipe lining material
Can be stored and inverted, the configuration of the pipe lining material reversing device 10 is simplified, the workability of the lining is improved, and the lining construction cost is reduced.

Further, since heated air and steam are used as the heat medium for heating the pipe lining material 9, the specific heat of the heat medium is increased and the pipe lining material 9 is efficiently heated in a short time. Is obtained.

Further, since a method of circulating heated air and steam as a heat medium in a closed loop circulation path is employed, efficient heating can be realized without wasting heat energy, and the pipe lining material 9 A circulating flow of heated air and steam is also formed inside the tube lining to uniformly heat the pipe lining material 9 and harden it uniformly.

Although the present invention has been described above with reference to an example in which the present invention is particularly applied to the lining of a pipeline such as a sewer pipe constituting the main pipe, the present invention is applied to a lining of a branch pipe or a manhole which joins the main pipe. Of course, the same can be applied to this.

[0057]

As is apparent from the above description, claim 1
According to the invention described in (7), the pipe lining material sandwiched between the cold insulation sheets or the heat insulation sheets is stored in the closed space of the pipe lining material reversing device while keeping the heat insulation or heat insulation state, and fluid pressure is supplied to the closed space. The pipe lining material was inverted and inserted into the pipeline, so that the pipe lining material reversing device could store and reverse the pipe lining material, simplifying the equipment configuration and improving the lining workability. And the effect of reducing the lining construction cost is obtained.

According to the second aspect of the present invention, since hydraulic pressure is used as a drive source for the tube lining material take-up reel and the sheet take-up reel, the drive torque of these reels can be easily adjusted. can get.

According to the third or fourth aspect of the present invention, the driving torque of the sheet take-up reel is set smaller than the drive torque of the tube lining material take-up reel. The take-up speed of the tube is increased, and even if the take-up speed exceeds the sending speed of the tube lining material from the tube lining material take-up reel, a slip occurs on the sheet take-up reel or the sheet take-up reel is stopped. Since the winding speed of the sheet and the sending speed of the tube lining material are kept equal, there is no need to adjust the speed of the sheet winding reel, and an effect is obtained that the configuration of the tube lining material reversing device is simplified.

According to the fifth aspect of the present invention, there is obtained an effect that the state of sending out the tube lining material from the cold storage container can be externally monitored through the transparent or translucent reversing guide.

According to the sixth or tenth aspect of the present invention, there is an effect that the internal state of the pipe lining material reversing device can be monitored from the outside via the transparent plate.

According to the eighth aspect of the present invention, since the heating air and steam are used as the heat medium for heating the pipe lining material, the specific heat of the heat medium is increased, and the pipe lining material can be efficiently and quickly stored. And the effect of being heated.

According to the ninth aspect of the present invention, since a method of circulating the heating air and the steam as the heat medium in the closed loop circulation path is adopted, efficient heating can be realized without wasting heat energy. As a result, a circulating flow of heated air and steam is formed inside the pipe lining material, whereby the pipe lining material can be uniformly heated and cured.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a pipe lining material reversing operation using a pipe lining material reversing device according to the present invention.

FIG. 2 is a sectional view of the pipe lining material reversing device according to the present invention.

FIG. 3 is an enlarged sectional view of a portion A in FIG. 2;

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is a sectional view of an inverted end portion of the pipe lining material.

FIG. 6 is a cross-sectional view showing an operation of inverting a pipe lining material into a pipe in a pipe lining method according to the present invention.

FIG. 7 is a cross-sectional view illustrating a hardening operation of a pipe lining material in the pipe lining method according to the present invention.

FIG. 8 is an enlarged sectional view taken along line CC of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipeline 9 Pipe lining material 10 Pipe lining material reversing device 11 Cooling container 11a, 11b Opening 11c Pipe lining material take-out 12 Tube lining material take-up reel 13 Sheet take-up reel 20 Cooling sheet or heat insulating sheet 22 Reversing guide 55, 56 Transparent plate S, S 'Closed space

 ──────────────────────────────────────────────────続 き Continuation of the front page (71) Applicant 592004301 All Co., Ltd. 1-1194 Hayashi, Tokorozawa-shi, Saitama 4 (72) Inventor Takao Kamiyama 31-27 Daikancho, Hiratsuka-shi, Kanagawa Shonan Synthetic Resin Co., Ltd. Inside the factory (72) Inventor Yasuhiro Yokoshima 175-3 Shinoyama, Ishishita-cho, Yuki-gun, Ibaraki Pref.Yokoshimanai (72) Inventor Shigeru Endo 2-12-4 Hanahata, Tsukuba, Ibaraki Prefecture Inventor Hiroyuki Aoki 1-194 Hayashi, Tokorozawa-shi, Saitama F-term within all four stock companies (reference) 3H025 EA01 EB23 ED02 EE05 4F211 AA36 AD12 AD19 AD20 AG08 AH43 AQ04 AR04 SA14 SC03 SD04 SD11 SH09 SH28 SJ01 SJ13 SJ15 SN SP15

Claims (10)

[Claims] A tube lining material take-up reel formed by winding a tube lining material impregnated with an uncured thermosetting resin in a state of being sandwiched between a cold insulating sheet or a heat insulating sheet, and the cold insulating sheet or the heat insulating sheet. A tube lining material reversing device, wherein a sheet take-up reel and a take-up reel are rotatably housed in the same closed space. 2. The tube lining material reversing device according to claim 1, wherein a hydraulic pressure is used as a drive source of the tube lining material take-up reel and the sheet take-up reel. 3. The tube lining material reversing device according to claim 1, wherein a driving torque of the sheet take-up reel is set smaller than a driving torque of the tube lining material take-up reel. 4. The tube lining material reversing device according to claim 3, wherein a torque limiter is provided in a drive system of the sheet take-up reel. 5. A highly airtight tubular reversal, wherein the closed space is formed in a cool container, a pipe lining material outlet is formed in a part of the cool container, and a part or the whole is transparent or translucent. The pipe lining material reversing device according to claim 1, wherein a guide is hermetically attached to the pipe lining material outlet. 6. The tube lining material reversing device according to claim 5, wherein an opening is formed in the cool container, and a transparent plate is attached to the opening. 7. A tube lining material take-up reel formed by winding a tube lining material impregnated with an uncured thermosetting resin while sandwiching the tube lining material with a cold insulating sheet or a heat insulating sheet, and the cold insulating sheet or the heat insulating sheet. A pipe lining method constructed using a pipe lining material reversing device configured to rotatably house a sheet take-up reel to be wound in the same closed space, wherein the pipe lining of the pipe lining material reversing device is provided. While feeding out the tube lining material wound on the material take-up reel, and winding the cold insulation sheet or the heat insulating sheet from the tube lining material take-up reel onto the sheet take-up reel, the fluid pressure supplied to the closed space is After the pipe lining material is inserted upside down into the pipe, the pipe lining is expanded by fluid pressure and pressed against the inner wall of the pipe, and the pipe lining is pressed. Pipe lining method, wherein a ring member and to cure the thermosetting resin impregnated thereto and heated by a heating medium. 8. The pipe according to claim 7, wherein heated air and steam are used as the heat medium, and these are discharged from the discharge hose drawn into the pipe lining material into the pipe lining material. Lining method. 9. The pipe lining method according to claim 8, wherein the heating air and the steam are circulated in a circulation path including the inside of the pipe lining material. 10. The apparatus according to claim 1, wherein a part of said pipe lining material reversing device is formed of a transparent plate, and an internal state of said pipe lining material reversing device is monitored from outside through said transparent plate. 7. The pipe lining method according to 7.