JP4593746B2 - Existing piping lining device and lining method using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lining device for existing piping and a lining method using the same, and more particularly to a device and a lining method for lining a pipe inner surface using a lining resin that is conveyed by airflow.
[0002]
[Prior art]
Pipe lines used for gas pipes and water and sewage systems may be used by connecting pipe lines with different diameters to a part of the laid section.
For example, in the case of sewers, the sewers in apartment houses and detached houses in each region are connected to a common drainage channel and communicated to a common drainage basin provided at one end of the common drainage channel. It is supposed to be.
For example, in the case of a condominium, the pipe used as a sewer can be connected to a drainage standpipe connected to a drainage standpipe, and the drainage standpipe connected to a common drainage pipe forming a common drainage channel. In addition, in the case of a detached house, the drain pipe from each house is connected to the common drain pipe.
FIG. 10 is a schematic diagram showing a piping state between the common drain pipe A and a drainage standpipe or drain pipe (hereinafter referred to as a drain branch pipe) B connected to the common drain pipe A. In FIG. Compared with the drainage branch pipe B, those having a larger diameter are used and are laid toward the common drainage basin C, and steel pipes are frequently used in consideration of durability.
When a metal pipe such as a steel pipe is used as a pipe line material, an aging phenomenon due to corrosion or the like progresses when the embedding period becomes long, and a defective portion such as a leak hole may be generated in the pipe.
[0003]
Conventionally, the above-mentioned water pipes or other gas pipes that are required to be airtight for the purpose of repairing a defective portion against an aging phenomenon and preventive maintenance to prevent the progression of the phenomenon, a seal tube on the inner surface of the pipe is used. Rehabilitation and repair technology has been developed to improve the sealing performance of the pipe line by lining the pipe or lining the resin liquid on the pipe inner surface.
As a method of lining the resin liquid, there is a method in which the lining resin is applied to the inner surface of the pipe by causing the lining resin to be conveyed in an air flow by making negative pressure or positive pressure in the drain pipe (for example, the tip of the present applicant). Japanese Patent Application Laid-Open No. 11-310942).
[0004]
[Problems to be solved by the invention]
The gazette disclosed in the above publication is based on the premise that the drainage standpipe piped in a building such as an apartment house is a target drainage branch, and has a diameter larger than that of the drainage branch. If lining is to be carried out using the facility for airflow conveyance used in the drainage branch for a large common drainage pipe, the airflow speed necessary for airflow conveyance cannot be obtained, and there is a possibility that lining failure may occur.
In particular, since it is known that an air volume proportional to the square of the diameter is required, in the facility for airflow conveyance applied to the drainage branch pipe having a diameter of about 50A and smaller than the diameter of the joint drain pipe of about 100A. At last, it is not possible to obtain the necessary air flow for lining. Therefore, when a large-diameter pipe line is targeted, it is conceivable to prepare a facility capable of obtaining an airflow carrying air volume. However, such a facility may be extremely large.
Furthermore, when applying the resin liquid, for example, when it hangs down in the circumferential direction, it is necessary for the resin liquid to be rolled up by the air flow velocity and spread over the entire inner surface of the pipe. When a common drain pipe having a larger diameter than this is targeted depending on the equipment, the air flow speed is reduced even if the air volume is the same. For this reason, not only the above-described roll-up of the resin liquid cannot be obtained, but also the resin liquid cannot be uniformly applied in the circumferential direction.
[0005]
In view of the problems in the conventional lining method, the object of the present invention is to change the equipment when a pipe having a larger diameter than that of the drainage branch is targeted by using equipment capable of obtaining an air flow rate for the drainage branch. It is another object of the present invention to provide a lining apparatus for an existing pipe line and a lining method using the same, which can perform uniform lining over the entire inner peripheral surface of the pipe line without performing the above-described process.
[0006]
[Means for Solving the Problems]
In order to achieve this object, the invention according to claim 1 is a lining device for applying a resin solution to an inner surface of an existing pipe line for rehabilitation repair, and a suction device connected to one end of the existing pipe line in the laying direction; A resin liquid supply unit that communicates with the other end of the existing pipe in the laying direction; a resin liquid supply hose that has a resin liquid discharge unit that is partially communicated with the resin liquid supply unit and is movable in the existing pipe; A hose support member that inserts and supports the resin liquid supply hose while allowing inflow of outside air through an opening at the other end in the laying direction of the existing pipe line, and a resin liquid discharge part side of the resin liquid supply hose on the existing pipe A discharge portion support member that is positioned at the center of the cross section of the passage and has a configuration that does not hinder the airflow in the existing pipeline, and the resin liquid discharge portion is directed in a predetermined direction in the circumferential direction of the existing pipeline. Is given a habit of orientation It is characterized in that there.
[0007]
According to a second aspect of the present invention, in the lining apparatus according to the first aspect, the resin liquid discharge portion is supported so as to be rotatable in the circumferential direction with respect to the end portion of the resin liquid supply hose, and a weight is integrated to be always provided. It is characterized by being directed toward the upper circumferential direction of the existing pipeline.
[0008]
According to a third aspect of the present invention, in the lining device according to the first aspect, the discharge portion support member includes a plurality of spiral blades provided in an immobile state, and the air flow in the existing pipeline is swirled so that the resin liquid It is characterized by allowing the discharge section to pass.
[0009]
According to a fourth aspect of the present invention, in the lining apparatus according to the first aspect, the resin discharge portion is generated at the time of discharge in a state where the resin liquid discharge opening is provided at a position deviated from a cross-sectional center of the existing pipe line. It is characterized by being configured to rotate in the circumferential direction by the reaction force from the air in the pipe.
[0010]
According to a fifth aspect of the present invention, in the lining device according to the first aspect, the hose support member positioned at the other end of the existing pipe line in the laying direction changes the area of the opening in the laying direction other end so that the outside air flows in. It is characterized in that the amount can be adjusted.
[0011]
A sixth aspect of the present invention is the lining apparatus according to any one of the first to fourth aspects, wherein the resin liquid supply section introduces the main agent and the curing agent into the supply hose in a mixed state. It is characterized by being.
[0012]
According to a seventh aspect of the present invention, in the lining apparatus according to any one of the first to fourth aspects, the resin liquid supply section introduces the main agent and the curing agent into the supply hose separately. It is characterized by having.
[0013]
The invention according to claim 8 is the lining device according to claim 7, wherein the resin liquid supply unit mixes both agents in the middle of the supply hose from the storage unit that individually stores the main agent and the curing agent. It is characterized by being.
[0014]
According to a ninth aspect of the present invention, in the lining device according to any one of the first to seventh aspects, a part of the supply hose can communicate with the outside air, and the area of the communication portion can be changed. It is characterized by that.
[0015]
A tenth aspect of the invention is characterized in that the resin liquid is applied while moving the resin liquid discharge portion along the laying direction of the existing pipe line by using one of the lining apparatuses according to the first to ninth aspects. .
[0016]
[Action]
According to the first and second aspects of the present invention, the resin liquid discharge portion of the supply hose located in the existing pipeline is directed in a predetermined direction in the circumferential direction of the existing pipeline, that is, toward the upper circumferential direction by using a weight. Therefore, the resin liquid can be applied to the inner surface of the pipe from the upper part in the circumferential direction of the existing pipe line. Thereby, even when the air velocity in the existing pipe line decreases and the resin liquid cannot be wound up, the resin liquid can be applied over the entire circumferential direction of the pipe inner peripheral surface.
[0017]
In the third aspect of the invention, since the spiral blades are provided on the discharge portion support member, the air flow passing through the resin liquid discharge portion becomes a swirl flow. Therefore, the resin liquid is multiplied by the swirl flow in the circumferential direction of the pipe inner surface. Can be uniformly applied.
[0018]
In the invention according to the fourth aspect, the resin liquid discharge portion can be rotated using the reaction force generated during discharge by decentering from the center of the cross section of the existing pipe line. The resin liquid can be uniformly applied in the direction.
[0019]
In the invention according to claim 5, since the inflow amount of outside air can be adjusted by changing the area of the other end opening in the laying direction of the existing pipe line by the hose support member, it is possible to optimize the air flow velocity in the existing pipe line. it can.
[0020]
In the invention according to claim 6, since the resin liquid supply part can be introduced into the supply hose in a state where the main agent and the curing agent are mixed, the labor of mixing can be saved.
[0021]
In the inventions according to claims 7 and 8, since the main agent and the curing agent are individually supplied or mixed in the supply process, the remaining main agent or the curing agent or both are individually recovered and reused. Can do.
[0022]
In the ninth aspect of the invention, since the amount of outside air taken in the supply hose can be changed, the transport speed of the resin liquid introduced from the resin liquid supply section is adjusted to optimize the ejection state at the resin liquid discharge section. can do.
[0023]
In the invention according to claim 10, the resin liquid can be discharged in a state where the resin liquid discharge portion is oriented in a predetermined direction in the circumferential direction of the inner surface of the pipe, so that the entire area in the circumferential direction of the inner surface can be obtained even when the air velocity in the existing pipe is low. In addition, the air flow velocity in the existing pipe line and the air flow velocity in the supply hose can be respectively set to optimum values for the pressure feeding of the resin liquid.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the illustrated examples.
FIG. 1 is a schematic diagram for explaining the principle configuration of the lining method according to this embodiment.
In the figure, reference numeral 1 denotes the common drain pipe shown in FIG. In the present invention, not only the drain pipe but also the water supply and the gas supply pipe can be used.
Although not shown, the common drain pipe 1 is a pipe line that communicates with a drain branch pipe piped in an apartment house. The drain pipe has a diameter of about 50A, whereas the steel pipe has a large diameter of about 100A. It consists of The common drain pipe 1 in this case is a pipe line called a horizontal main pipe which is buried in the ground and has one end in the laying direction in the drainage tub 2.
A suction machine 3 using a suction pump is disposed at one end of the joint drain pipe 1 in the laying direction, and a part of the suction pipe 3 communicates with the resin liquid supply unit 4 at the other end in the laying direction along the inside of the joint drain pipe 1 along the laying direction. A movable resin liquid supply hose 5 is inserted.
[0025]
The resin liquid supply unit 4 has a space that can be accommodated in a state in which the main agent and the curing agent are mixed in advance, is configured by a tank that can communicate with the outside air, and a flexible material in which the flow control valve 6 is disposed in the middle. A part of the resin liquid supply hose 5 made of is communicated.
The resin liquid supply hose 5 is supported by a hose support member 7 partway in the extending direction.
As shown in FIG. 2, the hose support member 7 is a cap member that is fixed by being put on an opening located at the other end of the common drain pipe 1 in the laying direction. 5 is provided, and a plurality of supporting ribs 7B are radially extended from the guide portion 7A along the circumferential direction. For this reason, the space which can accept | permit inflow of external air is comprised between the ribs 7B for support.
[0026]
The resin liquid supply hose 5 located in the common drain pipe 1 is supported by the discharge portion support member 8 in the vicinity of the end thereof.
FIG. 3 is a view showing a support structure of the resin liquid supply hose 5, in which the discharge portion support member 8 includes a feeding guide portion 8 </ b> A for positioning the resin liquid supply hose 5 at the center of the cross section of the common drain pipe 1. A plurality of support legs that are radially arranged in the circumferential direction in the delivery guide portion 8A and extend radially so that the extended end portions are in sliding contact with the inner surface of the common drain pipe 1 and can move in the common drain pipe 1 in the laying direction. 8B. In the discharge part support member 8, the space between the plurality of support legs 8B is a space that does not hinder the flow of outside air, like the support ribs 7B in the hose support member 7 shown in FIG.
[0027]
In FIG. 3, the resin liquid discharge portion 9 is an elbow member that is supported with one end in the extension direction fixed to a rotary joint 10 that is inserted into the end portion of the resin liquid supply hose 5 that is inserted through the discharge portion support member 8. It can be rotated in the circumferential direction via the rotary joint 10.
A weight 11 is suspended and supported on the rotary joint 10. For this reason, the resin liquid discharge member 9 is always directed in a predetermined direction with the opening directed toward the upper circumferential direction of the common drain pipe 1 by the gravity of the weight 11.
[0028]
Since the present embodiment is configured as described above, one end of the common drain pipe 1 in the laying direction is connected to the suction machine 3 when performing the lining process for the inner surface rehabilitation of the common drain pipe 1.
A resin liquid supply hose 5 partially connected to the resin liquid supply unit 4 is inserted into the hose support member 7 attached to the opening on the other side in the laying direction of the common drain pipe 1. The end of the resin liquid supply hose 5 on the side inserted into the hose support member 7 is inserted into the discharge part support member 8 and then connected to the resin liquid discharge part 9 via the rotary joint 10.
The resin liquid supply hose 5 is inserted into the common drain pipe 1, and the hose support member 7 is attached to the other end opening in the laying direction of the common drain pipe 1 with the resin liquid discharge part 9 positioned in the common drain pipe 1. This completes the preparation for the lining.
[0029]
When the operation of the suction device 3 is started, the pressure in the common drain pipe 1 and the resin liquid supply hose 5 communicating with the common drain pipe 1 are reduced, and the resin liquid is drawn from the resin liquid supply unit 4.
Although the air flow velocity in the common drain pipe 1 depends on the suction pressure of the suction machine 3, in this embodiment, the power suction machine 3 for the drainage branch pipe having a smaller diameter than the common drain pipe 1 is used. Therefore, the air flow speed inside the common drain pipe 1 is lower than that in the case of the drain branch pipe.
In this state, the resin liquid drawn out from the resin liquid supply unit 4 is sprayed from the resin liquid discharge unit 9 toward the upper circumferential direction of the common drain pipe 1 via the resin liquid supply hose 5 and It is applied first from the top of the direction. As a result, even when the application of the resin liquid is not sufficiently performed and the application in the entire circumferential direction is incomplete due to a decrease in the air flow velocity in the common drain pipe 1, the application start position is Since it is the upper part in the direction, it is applied over the entire circumferential direction by dripping. Furthermore, since the resin liquid supply hose 5 can move along the laying direction in the common drain pipe 1, the resin liquid to the inner surface of the pipe line in the process of moving from one end of the common drain pipe 1 toward the other end. Is applied.
[0030]
According to this embodiment, when the resin liquid does not roll up, the resin liquid discharge portion 9 is set in a state where the resin liquid discharge portion 9 is oriented as the resin liquid discharge position in advance toward a position where uneven coating is likely to occur. Even when the air velocity in the drain pipe is lowered, the resin liquid can be uniformly applied over the entire circumferential direction of the pipe inner surface. Thereby, even when using the suction machine 3 that can only obtain the airflow velocity for the drainage branch pipe having a small diameter compared with the common drainage pipe 1, the uniform film thickness for the large drainage common drainage pipe 1 is used. The lining film can be formed. In addition, since the premixed resin liquid can be directly introduced into the resin liquid supply hose 5 in the resin liquid supply unit, the operation of performing blending control or the like can be omitted.
[0031]
Next, a modified example related to the resin liquid discharge portion will be described with reference to FIGS.
The configuration shown in FIG. 4 is characterized in that the airflow passing through the resin liquid discharger 9 supported by a discharger support member (indicated by reference numeral 7 'for convenience) is changed to a swirl flow.
In FIG. 4, the discharge portion support member 8 ′ is provided with a support leg portion (indicated by reference numeral 8 B ′ for convenience) that can contact and slide on the inner surface of the common drain pipe 1. 8B 'is comprised with the spiral blade | wing provided in the stationary state. That is, it is composed of blades made of a propeller-like structure, and the airflow passing through this portion changes into a swirling flow.
In this configuration, at the end of the resin liquid supply hose 5 located in the common drain pipe 1, the airflow that has passed through the support leg 8B ′ becomes a swirling flow and passes through the resin liquid discharge part 9, so that the resin liquid The resin liquid ejected from the discharge unit 9 can swivel. Thereby, it can apply | coat uniformly over the circumferential direction whole region of a pipe | tube inner surface.
[0032]
Next, another example relating to the embodiment of the present invention will be described.
FIG. 6 is a diagram showing a main part of the configuration shown in FIG. 1, in which the support portion of the supply hose 5 is provided at the center of the cross section of the common drain pipe 1 as shown in FIG. 6A and a support member 7 provided with a plurality of support leg portions 7B protruding from the center at the position in the circumferential direction, and as shown in FIG. 6B, the support member 7 is divided into two at the center. And a shutter member 12 that can move in directions toward and away from each other as indicated by arrows.
The opening of the common drainage pipe 1 where the shutter member 12 is located is a part where the outside air flows into the inside, and the opening area of the common drainage pipe 1 can be opened and closed by changing the opening and closing by opening and closing each other. The inflow air amount according to the area, in other words, the inhalation air amount generated by the aspirator 3 can be adjusted to adjust the air velocity in the common drain pipe.
[0033]
Next, another example relating to the embodiment of the present invention will be described.
FIG. 6 is a diagram showing a main part of the configuration shown in FIG. 1, in which the opening area of the hose support member 7 attached to the other end opening in the laying direction of the joint drain pipe 1 can be changed. A shutter member 12 is provided.
As shown by arrows in FIG. 6, the shutter member 12 can change the opening area by moving toward and away from each other, and the air flow velocity in the common drain pipe is adjusted by setting the opening area. it can.
[0034]
On the other hand, the configuration in which the opening area can be changed is also provided behind the resin liquid supply unit 4 in the resin liquid supply hose 5. That is, the resin liquid supply hose 5 communicates with the outside air behind the resin liquid supply unit 4, and the adjustment valve 13 is disposed in the communication unit.
[0035]
Since the present embodiment is configured as described above, it is possible to increase the air flow velocity in the common drain pipe 1 by setting the opening area by the shutter member 12, and by setting the opening area by the regulating valve 13, Since the injection speed can be increased, even when the suction machine 3 having power for the drainage branch pipe having a smaller diameter than the joint drain pipe 1 is used, the air flow speed in the joint drain pipe 1 is increased to increase the resin liquid. In this way, a state in which the transfer and the roll-up of the resin are satisfactorily generated can be obtained, and furthermore, application unevenness can be eliminated by increasing the injection pressure and the injection amount of the resin liquid to optimize the injection state.
[0036]
Next, modified examples related to the resin liquid supply unit will be described with reference to FIGS.
The configuration shown in FIG. 7 includes an accommodating portion (indicated for convenience by reference numerals 4A and 4B) for individually accommodating the main agent and the curing agent, and is connected to the resin liquid supply hose 5 by introduction hoses 4C and 4D. Yes. Each introduction hose 4C, 4D is provided with supply means 4E, 4F used by a constant capacity pump such as a gear pump so that a predetermined amount of resin liquid is drawn into the resin liquid supply hose 5 and mixed. It has become.
[0037]
In the configuration shown in FIG. 8, introduction hoses 4 </ b> C and 4 </ b> D connected between the accommodating portions 4 </ b> A and 4 </ b> B that individually accommodate the main agent and the curing agent and the resin liquid supply hose 5 are gathered together. A mixer 4G is arranged at the position.
The mixer 4 </ b> G is connected to the resin liquid supply hose 5, and can mix and introduce the resin liquid drawn out from the storage portions 4 </ b> A and 4 </ b> B into the resin liquid supply hose 5.
Further, in the configuration shown in FIG. 9, instead of providing the resin liquid supply hose 5, the introduction hoses 4 </ b> C and 4 </ b> D connected between the accommodating portions 4 </ b> A and 4 </ b> B and the mixer 4 </ b> G are extended to extend the resin liquid discharge unit. 8 is connected to the mixer 4G.
[0038]
In the configuration shown in FIGS. 7 to 9, when each agent remains in each of the accommodating portions 4A and 4B, the accommodating portion can be removed, so that the remaining main agent and curing agent can be reused.
[0039]
【The invention's effect】
According to the first and second aspects of the present invention, the resin liquid discharge portion of the supply hose located in the existing pipeline is in a predetermined direction in the circumferential direction of the existing pipeline, that is, toward the upper circumferential direction by using the weight. By being directed, the resin liquid can be applied to the inner surface of the pipe from the circumferential upper part of the existing pipe line. Thereby, even when the air velocity in the existing pipe line decreases and the resin liquid cannot be wound up, the resin liquid can be applied over the entire circumferential direction of the pipe inner peripheral surface. As a result, even when targeting joint drainage pipes that have a larger diameter than the drainage branch pipe and have a lower air velocity than the drainage branch pipe, the pipe line can be moved by moving along the pipe laying direction. Since the resin liquid can be uniformly applied over the entire inner peripheral surface, it is possible to use equipment for the drainage branch pipe as equipment for a large-diameter common drainage pipe.
[0040]
According to the third aspect of the present invention, the spiral airflow passing through the resin liquid discharge portion is provided by the spiral blades provided on the discharge portion support member, so that the swirl flow is multiplied by the resin liquid on the inner surface of the pipe line. Uniform application in the circumferential direction is possible.
[0041]
According to the fourth aspect of the present invention, the resin liquid discharge portion can be rotated by utilizing the reaction force generated during discharge by decentering from the center of the cross section of the existing pipe line. The resin liquid can be uniformly applied in the circumferential direction.
[0042]
According to the fifth aspect of the present invention, the flow rate of the outside air can be adjusted by changing the area of the other end opening in the laying direction of the existing pipe line by the hose support member, so that the air flow velocity in the existing pipe line is optimized. be able to.
[0043]
According to the invention described in claim 6, since the resin liquid supply unit can be introduced into the supply hose in a state where the main agent and the curing agent are mixed, the labor of mixing can be saved.
[0044]
According to the seventh and eighth aspects of the present invention, the main agent and the curing agent are individually supplied or mixed in the supply process. Therefore, the remaining main agent or the curing agent or both are individually recovered and reused. can do.
[0045]
According to the ninth aspect of the present invention, since the amount of outside air taken in the supply hose can be changed, the conveying speed of the resin liquid introduced from the resin liquid supply section is adjusted to change the ejection state at the resin liquid discharge section. Can be optimized.
[0046]
In the invention according to claim 10, the resin liquid can be discharged in a state where the resin liquid discharge portion is oriented in a predetermined direction in the circumferential direction of the inner surface of the pipe, so that the entire area in the circumferential direction of the inner surface can be obtained even when the air velocity in the existing pipe is low. In addition, the air flow velocity in the existing pipe line and the air flow velocity in the supply hose can be respectively set to optimum values for the pressure feeding of the resin liquid. Thereby, the application | coating with the uniform film thickness to a pipe inner surface can be enabled by moving in the existing pipe line.
[Brief description of the drawings]
FIG. 1 is a schematic diagram for explaining a configuration applied to a lining method according to an example for explaining an embodiment of the present invention.
2 is a plan view for explaining a configuration related to a support portion of a resin liquid supply hose in the configuration shown in FIG. 1; FIG.
3 is a side view for explaining a support structure for a resin liquid discharge portion in the configuration shown in FIG. 1; FIG.
4 is a perspective view for explaining a modification example related to a support structure for a resin liquid discharge section in the configuration shown in FIG. 1; FIG.
FIG. 5 is a front view for explaining another example related to the support structure of the resin liquid discharge section in the configuration shown in FIG. 1;
6A and 6B are schematic diagrams for explaining another example of the embodiment of the present invention, where FIG. 6A is a schematic side view, and FIG. 6B is denoted by reference numeral (B) in FIG. It is an arrow view of a direction.
7 is a schematic diagram for explaining a modified example related to a resin liquid supply unit in the configuration shown in FIG. 1; FIG.
FIG. 8 is a schematic view for explaining still another modification of the resin liquid supply unit shown in FIG.
FIG. 9 is a schematic view for explaining still another modification of the resin liquid supply unit shown in FIG.
FIG. 10 is a schematic diagram showing an example of a laying state in which pipe lines having different diameters are used.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Common drainage pipe corresponded to existing pipe line 2 Drainage tank 3 Suction machine 4 Resin liquid supply part 4A, 4B Storage part of main agent and hardening agent which comprise resin liquid 5 Resin liquid supply hose 7 Hose support member 8 Discharge part support member 8B 'Spiral blade 9 Resin liquid discharge part 10 Rotating joint 11 Weight 12 Shutter member

Claims (10)

In a lining device for rehabilitation repair by applying a resin solution to the inner surface of an existing pipeline,
A suction device connected to one end of the existing pipe line in the laying direction;
A resin liquid supply unit communicating with the other end of the existing pipe in the laying direction;
A resin liquid supply hose that partially communicates with the resin liquid supply section and has a resin liquid discharge section that is movable in the existing pipeline;
A hose support member that inserts and supports the resin liquid supply hose while allowing inflow of outside air at the opening at the other end in the laying direction of the existing pipe line,
A discharge part supporting member having a configuration that positions the resin liquid discharge part side in the resin liquid supply hose at the center of the cross section of the existing pipe line and does not hinder the air flow in the existing pipe line;
The lining device according to claim 1, wherein the resin liquid discharge section is given a habit of directing in a predetermined direction in a circumferential direction of the existing pipe line. The lining device according to claim 1, wherein
The resin liquid discharge part is supported so as to be rotatable in the circumferential direction with respect to the end part of the resin liquid supply hose, and the weight is integrated and is always directed toward the upper part of the existing pipe line in the circumferential direction. A characteristic lining device. The lining device according to claim 1, wherein
The discharge unit supporting member includes a plurality of spiral blades provided in a non-moving state, and causes the air flow in an existing pipeline to swirl to pass through the resin liquid discharge unit. The lining device according to claim 1, wherein
The resin discharge part is configured to rotate in the circumferential direction by a reaction force from the air in the pipe line generated at the time of discharge in a state where the resin liquid discharge opening is provided at a position eccentric from the cross-sectional center of the existing pipe line. A lining device characterized by that. The lining device according to claim 1, wherein
The hose support member located at the other end in the laying direction of the existing pipe line is configured to be able to adjust the inflow amount of outside air by changing the area of the opening in the other end in the laying direction. The lining device according to one of claims 1 to 4,
The lining device according to claim 1, wherein the resin liquid supply unit is configured to be introduced into the supply hose in a state where the main agent and the curing agent are mixed. The lining device according to one of claims 1 to 4,
The lining apparatus according to claim 1, wherein the resin liquid supply unit is configured to individually introduce the main agent and the curing agent into the supply hose. The lining device according to claim 7, wherein
The lining apparatus according to claim 1, wherein the resin liquid supply unit is configured to mix both agents in the middle of the supply hose from the storage unit that individually stores the main agent and the curing agent. The lining device according to one of claims 1 to 7,
A part of the supply hose can communicate with outside air, and the area of the communication part can be changed. A lining method for an existing pipe line, wherein the resin liquid is applied while moving the resin liquid discharge part along the laying direction of the existing pipe line using the lining device according to any one of claims 1 to 9.

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