JP2022128079A - Pipe covering device and pipe drainage treatment method - Google Patents

Abstract

To perform work in a short time while preventing leakage of liquid such as sewage.SOLUTION: A pipe covering device comprises: an inner diameter side covering member arranged around a flange part of a first pipe via a semi-annular sealing member, and an outer diameter side covering member arranged around a flange part of a second pipe joined to the flange part of the first pipe via a semi-annular sealing member and around the inner diameter side covering member via an annular sealing member. When the flange part of the first pipe is separated from the flange part of the second pipe, the inner diameter side covering member is movable in the same direction together with the flange part of the first pipe, and is slidable on the outer diameter side covering member. The outer diameter side covering member comprises a drain mechanism that can discharge liquid flowing out from the gap between the flange part of the first pipe and the flange part of the second pipe to the outside when the flange part of the first pipe is separated from the flange part of the second pipe.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD Embodiments of the present invention relate to a pipe curing device and a pipe drainage treatment method.

In general, when replacing instrumentation equipment including pipes in water supply and sewerage facilities, if there is no drain mechanism in the pipeline, it is necessary to dismantle and replace with liquid such as sewage accumulated inside. . Therefore, as a preliminary work, sewage and the like stored in the pipeline are drained from the pipe connecting portion (hereinafter referred to as "flange portion"). At that time, in order not to contaminate the existing equipment around the construction area, workers use plastic bags, etc., to protect the surroundings of the flanges for each renewal work, and strive to prevent contamination of the surroundings. In addition, we are working while securing a drainage route using vinyl sheets, etc., so that sewage, etc. can flow to the drainage treatment point.

JP 2010-281367 A

Generally, during work, the state of the sewage inside the pipe and the level of pressure at the time of drainage cannot be known until the water is discharged. Sometimes I end up In addition to being unable to completely prevent the leakage of liquids such as sewage, the curing work may take a long time.

The problem to be solved by the invention is to provide a pipe curing device and a pipe waste liquid treatment method that enable work to be performed in a short time while preventing leakage of liquid such as sewage.

A pipe curing device according to an embodiment includes an inner diameter side curing member arranged around a flange portion of a first pipe via a semi-annular seal member, and a second pipe portion joined to the flange portion of the first pipe. and an outer diameter side curing member arranged around the flange portion of the pipe No. 2 via a semi-annular sealing member and arranged around the inner diameter side curing member via an annular sealing member. The inner diameter side curing member is movable in the same direction together with the flange portion of the first pipe when the flange portion of the first pipe is separated from the flange portion of the second pipe, and the outer diameter side curing member The outer diameter side curing member is slidable with respect to the member, and the outer diameter side curing member separates the flange portion of the first pipe and the second pipe when the flange portion of the first pipe is separated from the flange portion of the second pipe. A drain mechanism is provided to enable the liquid flowing out from the gap between the pipes No. 2 and the flange portion to be discharged to the outside.

The perspective view which shows an example of the state in which the pipe curing apparatus which concerns on embodiment was attached to the two flange parts which connect two pipes. FIG. 4 is a longitudinal sectional view showing an example of a state in which the two flange portions are joined; FIG. 4 is a longitudinal sectional view showing an example of a state in which one of the two flange portions is separated; FIG. 4 is a conceptual diagram showing an enlarged joint surface between an inner diameter side curing member 10B and an outer diameter side curing member 20B at the lower back in FIG. 3 ; A seam 10X existing between the first semi-annular inner diameter side curing member 10A and the second semi-annular inner diameter side curing member 10B, and the first semi-annular outer diameter side curing FIG. 4 is a conceptual diagram showing a positional relationship between a member 20A and a joint 20X present between a second semi-annular outer-diameter-side curing member 20B; FIG. 6 is a conceptual diagram showing an example of a leakage route of a liquid such as sewage when the ring shown in FIG. 5 is viewed as a plane. FIG. 3 is a perspective view showing an example of the configuration of inner diameter side curing members 10A and 10B with one seal member 41 attached. The side view which shows the shape when the structure shown by FIG. 7 is seen from the side. The front view which shows the shape when the structure shown by FIG. 7 is seen from the loose short pipe 5 side. FIG. 10 is a rear view showing the shape of the configuration shown in FIG. 9 when viewed from the opposite side; FIG. 8 is a conceptual diagram showing the shape of a longitudinal section in the vicinity of the center when the configuration shown in FIG. 7 is viewed from the side and the shape seen behind it. FIG. 4 is a perspective view showing an example of the configuration of outer-diameter-side curing members 20A and 20B with two sealing members 42 attached. The side view which shows the shape when the structure shown by FIG. 12 is seen from the side. The front view which shows the shape when the structure shown by FIG. 12 is seen from the loose short pipe 5 side. FIG. 15 is a rear view showing the shape of the configuration shown in FIG. 14 when viewed from the opposite side; FIG. 13 is a conceptual diagram showing the shape of a longitudinal section in the vicinity of the center when the configuration shown in FIG. 12 is viewed from the side and the shape seen behind it. FIG. 13 is a conceptual diagram showing the cross-sectional shape in the vicinity of the center when the configuration shown in FIG. 12 is viewed from above and the shape seen behind it. 4 is a flow chart showing an example of a process performed as a preparation for discharging liquid such as sewage. 4 is a flow chart showing an example of a process performed in the operation of discharging liquid such as sewage. 4 is a flow chart showing an example of a process performed after a liquid such as sewage is discharged.

Embodiments will be described below with reference to the drawings.

In the following, a case where the pipe curing device according to the embodiment is applied to the flange portion of the pipe of a water supply and sewerage facility (sewerage facility or water supply facility) will be exemplified, but not limited to this, the pipe curing device according to the embodiment It can also be applied to other types of facilities. For example, the pipe curing device according to the embodiment can be applied to any facility that has a flange portion that connects pipes through which some liquid (for example, factory waste liquid) flows.

BACKGROUND ART When updating instrumentation equipment including pipes in water and sewage facilities (hereinafter referred to as "renewal"), the pipes before renewal are dismantled. The pipe curing apparatus of this embodiment is used to prevent contamination of the surroundings by wastewater such as sewage that may occur at that time.

FIG. 1 is a perspective view showing an example of a state in which a pipe curing device according to an embodiment is attached to two flange portions connecting two pipes. FIG. 2 is a longitudinal sectional view showing an example of a state in which the two flange portions are joined, and FIG. 3 is a longitudinal sectional view showing an example of a state in which one of the two flange portions is separated. be.

The flange portion 2 at the end of the first pipe 1 and the flange portion 4 at the end of the second pipe 3 are, as shown in FIG. For example, it is assumed that the pipeline is tightened and joined by a bolt and a nut, and liquid such as sewage is stored in the pipeline. Moreover, it is assumed that the first pipe 1 of the first pipe 1 and the second pipe 3 is arranged on the loose short pipe 5 side.

On the other hand, during renewal, as shown in FIG. 3, the tightening members 2a and 4a are removed or loosened, and the flange portion 2 of the first pipe 1 is moved from the flange portion 4 of the second pipe 3 to the loose short pipe. 5 side and moved in the direction of arrow D together with the first pipe 1 . At this time, from between the flange portion 2 of the first pipe 1 and the flange portion 4 of the second pipe 3, liquid such as sewage stored in the pipe is discharged.

As shown in FIGS. 1 to 3, the pipe curing apparatus of this embodiment includes an annular inner diameter side curing member 10 and an annular outer diameter side curing member 20 . These members are made of a material having a strength that does not deform or break due to the pressure of liquid such as sewage that is attached to or attached to the flange portion 2 of the first pipe 1 and the flange portion 4 of the second pipe 3. . Although it is desirable to use metal in order to maintain strength, it is not limited to this, and plastic or the like that can achieve the required strength may be used.

The inner diameter side curing member 10 is configured by joining two or more members together. For example, as shown in FIG. and a semi-annular inner-diameter-side curing member 10B are joined together by a tightening member 12a (for example, a bolt), which will be described later. Two seams 10X are present between the first semi-annular inner diameter side curing member 10A and the second semi-annular inner diameter side curing member 10B.

In addition, as shown in FIG. 2, the inner diameter side curing member 10 includes semi-annular sealing members 11A and 11B (11A and 11B combined to form an annular sealing member) around the flange portion 2 of the first pipe 1. ). The sealing members 11A and 11B are made of packing made of rubber or resin, for example. The first semi-annular inner-diameter-side curing member 10A and the second semi-annular-shaped inner-diameter-side curing member 10B, which constitute such an inner diameter-side curing member 10, are tightened by tightening members 12a, which will be described later. It is fixed to the flange portion 2 of the first pipe 1 .

The outer-diameter-side curing member 20 is configured by joining two or more members together. For example, as shown in FIG. It is configured by connecting the second semi-circular outer-diameter-side curing member 20B with a tightening member 31 (for example, a bolt and a nut). Two seams 20X are present between the first semi-annular outer-diameter-side curing member 20A and the second semi-annular-shaped outer-diameter-side curing member 20B. The tightening member 31 tightens the tab-shaped member 30A forming part of the outer diameter side curing member 20A and the tab-shaped member 30B forming part of the outer diameter side curing member 20B.

Further, as shown in FIG. 2, the outer-diameter-side curing member 20 has semi-annular seal members 21A and 21B around the flange portion 4 of the second pipe 3 (21A and 21B combined to form an annular seal). ) and is arranged around the inner diameter side curing member 10 via a plurality of annular sealing members 40 . The sealing members 21A, 21B, and 40 are made of packing made of rubber or resin, for example. The first semi-annular outer curing member 20A and the second semi-annular outer curing member 20 that constitute the outer diametrical side curing member 20 are configured to tighten the tightening member 31. Thus, it is fixed to the flange portion 4 of the second pipe 3 and pressed against the inner diameter side curing members 10A and 10B.

As shown in FIG. 3, the inner diameter side curing member 10 is arranged such that the flange portion 2 of the first pipe 1 is attached to the flange portion 4 of the second pipe 3 with the tightening members 2a and 4a removed or loosened. It is configured to be movable in the same direction together with the flange portion 2 of the first pipe 1 and slidable with respect to the outer diameter side curing member 20 when separated from the first pipe 1 . From the viewpoint of preventing leakage of liquid such as sewage, it is desirable that the inner diameter side curing member 10 is configured so that the slidable range is limited.

As shown in FIG. 2, the outer-diameter-side curing member 20 has a drain mechanism 50 that enables opening and closing of a discharge port 51. As shown in FIG. In this drain mechanism 50, when the discharge port 51 is open, as shown in FIG. 3, the flange portion 2 of the first pipe is in a state in which the tightening members 2a and 4a are removed or loosened. Discharging liquid such as sewage out into the space G from between the flange portion 2 of the first pipe 1 and the flange portion 4 of the second pipe 3 when separated from the flange portion 4 of the pipe 3 enable When the discharge port 51 is closed, liquid such as sewage coming out from between the flange portion 2 of the first pipe 1 and the flange portion 4 of the second pipe 3 accumulates in the space G.

The drain mechanism 50 is implemented using a plug, for example. The plug makes it possible to adjust the discharge flow rate of the liquid by closing or opening (loosening) the discharge port 51 . However, it is not limited to the case of using the plug, and the same function may be realized by using an object other than the plug.

Next, an example of the configuration of the plurality of seal members 40 will be described with reference to FIG.

FIG. 4 is a conceptual diagram showing an enlarged joint surface between the inner diameter side curing member 10B and the outer diameter side curing member 20B at the lower back in FIG. The joint surface between the inner diameter side curing member 10A and the outer diameter side curing member 20B on the lower front side in FIG. 3 also has a similar structure. 3, and the joint surface between the inner diameter side curing member 10B and the outer diameter side curing member 20A at the upper back side in FIG. has a similar structure.

The multiple seal members 40 include, for example, one annular seal member 41 and two annular seal members 42 . One annular sealing member 41 is attached to the outer peripheral surfaces of the inner diameter side curing members 10A and 10B. Two annular sealing members 42 are attached to the inner peripheral surfaces of the outer-diameter-side curing members 20A and 20B. In a state in which the outer diameter side curing members 20A and 20B are arranged around the inner diameter side curing members 10A and 10B, one annular sealing member 41 is positioned between two annular sealing members 42. ing.

In the example shown in FIG. 4, there are two sealing members 42 spaced apart from each other in the longitudinal direction of the pipe on the inner peripheral side of the outer diameter side curing member 20B. The seal member 42 is housed in a groove previously formed on the inner peripheral side of the outer-diameter-side curing member 20B, and is in a compressed state by being pushed by the inner-diameter-side curing member 10B. Further, one seal member 41 is arranged so as to be positioned between two annular seal members 42 on the outer peripheral side of the inner diameter side curing member 10B. The seal member 41 is housed in a groove provided in advance on the outer peripheral side of the inner diameter side curing member 10B, and is in a compressed state by being pushed by the outer diameter side curing member 20B.

Further, in the example shown in FIG. 4, when the inner diameter side curing member 10B slides with respect to the fixed outer diameter side curing member 20B, the seal member 41 also moves along with the sliding. Here, the range in which the seal member 41 moves is designed to be within the range R sandwiched between the two seal members 42 . Since the seal member 41 is always sandwiched between the two seal members 42, leakage of liquid such as sewage from between the outer curing member 20B and the inner curing member 10B to the outside of the device is suppressed as much as possible. be able to.

Each of the one annular seal member 41 and the two annular seal members 42 described above may be composed of two semi-annular seal members.

In that case, the two semi-annular sealing members 41 may be individually attached to the inner diameter side curing member 10A and the inner diameter side curing member 10B, respectively. In addition, the two semi-annular sealing members 41 are arranged in advance before the inner diameter side curing member 10A and the inner diameter side curing member 10B are installed on the flange portion 2 of the first pipe 1. It may be attached to the side curing member 10B, or may be attached after the inner diameter side curing member 10A and the inner diameter side curing member 10B are installed on the flange portion 2 of the first pipe 1.

Also, the two semi-annular sealing members 42 may be individually attached to the outer diameter side curing member 20A and the outer diameter side curing member 20B, respectively. In addition, the two semi-circular sealing members 42 are provided in advance before the outer-diameter-side curing member 20A and the outer-diameter-side curing member 20B are installed on the flange portion 4 of the second pipe 3. 20A and the outer curing member 20B.

Next, the positional relationship between the joint 10X and the joint 20X will be described.

FIG. 5 shows a joint 10X existing between the first semi-annular inner diameter side curing member 10A and the second semi-annular inner diameter side curing member 10B, and the first semi-annular shape. FIG. 4 is a conceptual diagram showing the positional relationship between a joint 20X that exists between an outer-diameter-side curing member 20A and a second semi-annular-shaped outer-diameter-side curing member 20B. Here, illustration of the one annular sealing member 41 and the two annular sealing members 42 described above is omitted.

As shown in FIG. 5, the position of the joint 10X existing between the first semi-annular inner diameter side reinforcing member 10A and the second semi-annular inner diameter side reinforcing member 10B and the position of the first The position of the joint 20X existing between the semi-annular outer-diameter-side curing member 20A and the second semi-annular-shaped outer-diameter-side curing member 20B is shifted so as not to match. It's becoming In this case, the position of the joint 10X and the position of the joint 20X are desirably arranged in a state of being shifted by 90 degrees in the circumferential direction of the ring. By doing so, the individual joints are evenly separated from each other, and there is no narrow space between the joints. The effect of suppressing leakage of liquid such as sewage from the gap with the flange portion 4 to the outside of the device is maximized.

FIG. 6 is a conceptual diagram showing an example of a leakage route of liquid such as sewage when the ring shown in FIG. 5 is viewed in a plane.

Assuming that liquid such as dirty water coming out from between the flanges leaks to the outside of the device, the liquid first passes through the joint 20X between the outer-diameter-side curing members 20A and 20B to which the seal member 42 is attached, After moving in the circumferential direction of the ring, it passes through the joint 10X of the inner diameter side curing members 10A and 10B to which the sealing member 41 is attached, and after moving in the circumferential direction of the ring, the sealing member 42 is attached. A possible route is to move in the circumferential direction of the ring by passing through the joint 20X between the outer diameter side curing members 20A and 20B. At this time, if the position of the joint 10X and the position of the joint 20X are displaced by 90 degrees in the circumferential direction of the ring as described above, a sufficient distance can be secured between the joint 10X and the joint 20X. , the liquid coming out from between the flange portions is less likely to leak out of the device.

FIG. 7 is a perspective view showing an example of the configuration of the inner diameter side curing members 10A and 10B with one sealing member 41 attached. In addition, when the inner diameter side curing members 10A and 10B shown in FIG. 7 are attached to the flange portion 2 of the first pipe 1 described above, they are displaced in the circumferential direction as shown in FIG. position).

FIG. 8 is a side view showing the shape of the configuration shown in FIG. 7 when viewed from the side. FIG. 9 is a front view showing the shape of the configuration shown in FIG. 7 when viewed from the loose short pipe 5 side. FIG. 10 is a rear view showing the shape of the configuration shown in FIG. 9 when viewed from the opposite side. FIG. 11 is a conceptual diagram showing the shape of a longitudinal section in the vicinity of the center when the configuration shown in FIG. 7 is viewed from the side and the shape seen behind it.

As shown in FIGS. 7 and 8, the inner diameter side curing members 10A and 10B are connected together by a tightening member 12a (for example, a bolt). An opening 12 for attaching a tightening member 12a is formed in one of the inner diameter side curing members 10A and 10B, 10A. The tightening member 12a is inserted into the opening 12, and screwed until a part of the tightening member 12a penetrates the joint 10X and reaches the inside of the inner diameter side curing member 10B, thereby connecting the inner diameter side curing members 10A and 10B. there is

Although not shown in FIG. 7, similar to the opening 12 and the tightening member 12a are also provided at the back of the inner diameter side curing members 10A and 10B shown in FIG.

FIG. 12 is a perspective view showing an example of the configuration of the outer curing members 20A and 20B with two sealing members 42 attached.

13 is a side view showing the shape of the configuration shown in FIG. 12 when viewed from the side; FIG. 14 is a front view showing the shape of the configuration shown in FIG. 12 when viewed from the loose short pipe 5 side. 15 is a rear view showing the shape of the configuration shown in FIG. 14 when viewed from the opposite side; FIG. FIG. 16 is a conceptual diagram showing the shape of a longitudinal section in the vicinity of the center when the configuration shown in FIG. 12 is viewed from the side and the shape seen behind it. 17A and 17B are conceptual diagrams showing the cross-sectional shape near the center of the configuration shown in FIG.

As shown in FIGS. 12 and 13, the outer-diameter-side curing members 20A and 20B are configured by connecting them with the above-described fastening members 31 (for example, bolts and nuts). The tightening member 31 tightens the tab-shaped member 30A forming part of the outer diameter side curing member 20A and the tab-shaped member 30B forming part of the outer diameter side curing member 20B. Further, as shown in FIG. 17, the outer diameter side curing member 20B is provided with a drain mechanism 50 including the discharge port 51 described above.

Next, with reference to FIG. 18, an example of processing performed as a preliminary preparation for discharging liquid such as sewage will be described.

Now, the flange portion 2 of the first pipe 1 and the flange portion 4 of the second pipe 3 on the side of the loose short pipe 5 are tightened and joined by tightening members 2a and 4a. is assumed to contain liquid such as sewage.

First, the inner diameter side curing member 10 is installed around the flange portion 2 of the first pipe 1 (S11).
Specifically, the inner diameter side curing members 10A and 10B are attached via seal members 11A and 11B so as to cover the periphery of the flange portion 2 of the first pipe 1, respectively, and are fixed with a tightening member 12a. A sealing member 41 is provided on the outer peripheral side of the inner diameter side curing members 10A and 10B.

Next, the outer-diameter-side curing member 20 is installed around the flange portion 4 of the second pipe 3 and around the inner-diameter-side curing member 10 (S12).
Specifically, outer diameter side curing members 20A and 20B are attached via seal members 21A and 21B so as to cover the periphery of the flange portion 4 of the second pipe 3, respectively, and inner diameter side curing member 10A , and 10B are mounted via the sealing member 42 and the above-described sealing member 41 so as to cover the periphery of the 10B, and are fixed by the tightening member 31. As shown in FIG. At this time, with respect to the position of the joint 10X of the inner diameter side curing members 10A and 10B, the position of the joint 20X of the outer diameter side curing members 20A and 20B is shifted in the circumferential direction of the ring (for example, 90 degrees shift). fixed).

Then, a container (for example, a bucket) for receiving liquid such as sewage to be discharged is prepared and placed below the drain mechanism 50 of the outer curing member 20 (S13).

Next, with reference to FIG. 19, an example of processing performed in the work of discharging liquid such as sewage will be described.

First, the drain mechanism 50 of the outer curing member 20 is opened, and the position of the container is adjusted as necessary (S21). At this time, the valve may be left slightly loosened instead of being fully opened, and may be gradually opened when performing the processing of step S23, which will be described later.

Next, the tightening members 2a and 4a tightening the flanges 2 and 4 are removed or loosened (S22).

Then, the flange portion 2 is separated from the flange portion 4 and moved toward the loose short pipe 5 (S23).
Specifically, when the flange portion 2 moves toward the loose short pipe 5 , the inner diameter side curing member 10 moves in the same direction together with the flange portion 2 and slides on the outer diameter side curing member 20 . Part 2 is moved. As a result, the liquid such as sewage flowing out from the gap between the flange portion 2 and the flange portion 4 is discharged to the outside through the drain mechanism 50 and stored in the prepared container.

Next, with reference to FIG. 20, an example of processing performed after the work of discharging liquid such as sewage will be described.

First, the outer diameter side curing member 20 is removed (S31).
Next, the inner diameter side curing member 10 is removed (S32).
Next, the first pipe 1 with the flange portion 2 and the second pipe 3 with the flange portion 4 are removed (S33).
Next, each member and each pipe is cleaned and put away (S34).
Then, new piping is installed (S35).

According to this embodiment, the following effects are obtained.

・It can be applied to existing piping that does not have a drain mechanism.
・Main leaks of sewage, etc. can be suppressed by covering and fixing the existing flange with a pipe curing device.
・Anyone can easily fix the pipe curing device to the flange, regardless of the worker's experience and ability (skill).
・Pipe curing equipment can be installed on existing pipes in a short time.
・The pipe curing device is strong enough not to be deformed or damaged by the pressure of sewage, etc., when it is attached to the flange, and can be used repeatedly by washing after work.
・It is possible to attach and detach the tightening member of the flange part while the pipe curing device is installed.
・The gap between the flanges can be widened while the pipe curing device is installed.
・The drain mechanism of the pipe curing device can drain liquid such as sewage from the existing flange without scattering.
- Liquids such as sewage can be discharged all at once by the drain mechanism of the pipe curing device.

As described in detail above, according to the embodiment, it is possible to perform work in a short time while preventing leakage of liquid such as sewage.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 1... 1st piping, 2... Flange part, 2a, 4a... Tightening member, 3... 2nd piping, 4... Flange part, 5... Loose short pipe, 10... Circular internal-diameter side curing member, 10A... 3rd 1 semi-annular inner diameter side curing member, 10B... second semi-annular inner diameter side curing member, 10X... joint, 11A, 11B... semi-annular sealing member (11A (10A side) and 11B (10B side) combined to form an annular sealing member), 12a... tightening member, 20... annular outer diameter side curing member, 20A... first semi-annular outer diameter side curing member, 20B... Second semi-annular outer diameter side curing member, 20X ... joint, 21A, 21B ... semi-annular sealing member (21A (20A side) and 21B (20B side) are combined to form an annular seal member), 30A, 30B... tab-shaped member, 31... tightening member, 40... a plurality of annular seal members, 41, 42... annular seal member, 50... drain mechanism, 51... discharge port, G... space, R . . . range of movement of the ring-shaped seal member 41 .

Claims (10)

an inner diameter side curing member arranged around the flange portion of the first pipe via a semi-annular sealing member;
A semi-annular seal member is disposed around the flange portion of the second pipe joined to the flange portion of the first pipe, and an annular seal member is arranged around the inner diameter side curing member. an outer diameter side curing member arranged in the
and
The inner diameter side curing member is
When the flange portion of the first pipe is separated from the flange portion of the second pipe, it is movable in the same direction together with the flange portion of the first pipe and is slidable on the outer diameter side curing member. can be,
The outer diameter side curing member is
When the flange portion of the first pipe is separated from the flange portion of the second pipe, the liquid flowing out from the gap between the flange portion of the first pipe and the flange portion of the second pipe is discharged to the outside. A pipe curing device equipped with a drain mechanism. The inner diameter side curing member is
A first semi-annular inner diameter side curing member and a second semi-annular inner diameter side curing member are connected by a tightening member,
The outer diameter side curing member is
A first semi-annular outer-diameter-side curing member and a second semi-annular-shaped outer-diameter-side curing member are connected by a tightening member,
The pipe curing device according to claim 1. Two circles spaced apart from each other in the longitudinal direction of the pipe are provided on the inner peripheral sides of the first semi-annular outer-diameter-side curing member and the second semi-annular-shaped outer-diameter-side curing member. An annular seal member is attached,
On the outer peripheral side of the first semi-annular inner-diameter-side reinforcing member and the second semi-annular-shaped inner-diameter-side recuperating member, a seal member is arranged so as to be positioned between the two annular sealing members. is fitted with an annular seal member that
The pipe curing device according to claim 2. The inner diameter side curing member or the outer diameter side curing member is
The position of the joint existing between the first semi-annular inner diameter side curing member and the second semi-annular inner diameter side curing member, and the outer diameter of the first semi-annular ring shape The position of the joint existing between the side curing member and the second semi-annular outer diameter side curing member is arranged in a shifted state so that they do not match.
The pipe curing device according to claim 2 or 3. The inner diameter side curing member and the outer diameter side curing member are
The position of the joint existing between the first semi-annular inner diameter side curing member and the second semi-annular inner diameter side curing member, and the outer diameter of the first semi-annular ring shape The position of the joint existing between the side curing member and the second semi-annular outer diameter side curing member is arranged in a state shifted by 90 degrees in the circumferential direction of the ring so that the position of the seam does not match. there is
The pipe curing device according to claim 2 or 3. A step of installing the inner diameter side curing member such that the inner diameter side curing member is arranged around the flange portion of the first pipe via a semi-annular sealing member;
An outer diameter side curing member is arranged around the flange portion of the second pipe joined to the flange portion of the first pipe via a semi-annular sealing member and is circular around the inner diameter side curing member. installing the outer diameter side curing member so as to be arranged via an annular sealing member;
A step of opening a drain mechanism provided in advance on the outer diameter side curing member;
When the flange portion of the first pipe is pulled away from the flange portion of the second pipe, the inner diameter side curing member moves in the same direction together with the flange portion of the first pipe and the outer diameter side curing member By moving the flange portion of the first pipe so as to slide against, the liquid flowing out from the gap between the flange portion of the first pipe and the flange portion of the second pipe is drained through the drain mechanism a step of discharging to the outside;
including,
A pipe wastewater treatment method. A step of forming the inner diameter side curing member by connecting a first semi-annular inner diameter side curing member and a second semi-annular inner diameter side curing member with a tightening member;
a step of connecting a first semi-annular outer curing member and a second semi-annular outer curing member with a tightening member;
further comprising
The pipe drainage treatment method according to claim 6. Two annular rings are arranged separately from each other in the longitudinal direction of the pipe on the inner peripheral side of the first semi-annular outer-diameter-side curing member and the second semi-annular-shaped outer-diameter-side curing member. a step of attaching the sealing member of
Disposed between the two annular seal members on the outer peripheral side of the first semi-annular inner diameter side reinforcing member and the second semi-annular inner diameter side recuperating member installing one annular seal member;
further comprising
The pipe drainage treatment method according to claim 7. A joint between the inner diameter side curing member or the outer diameter side curing member and the first semi-annular inner diameter side curing member and the second semi-annular inner diameter side curing member. The position and the position of the joint existing between the first semi-annular outer-diameter side curing member and the second semi-annular outer-diameter side curing member are shifted so as not to match each other. including the step of arranging the
9. The pipe drainage treatment method according to claim 7 or 8. A joint between the inner diameter side curing member or the outer diameter side curing member and the first semi-annular inner diameter side curing member and the second semi-annular inner diameter side curing member. Circular so that the position and the position of the joint existing between the first semi-annular outer-diameter-side curing member and the second semi-annular-shaped outer-diameter-side curing member do not match. Including the step of arranging the ring in a state shifted by 90 degrees in the circumferential direction,
9. The pipe drainage treatment method according to claim 7 or 8.

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