JP3476529B2 - Foam collection container - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam recovery container, and more specifically, to a container body capable of accommodating the foam body, the foam body being housed in the container body together with a carrier gas from outside. The present invention relates to a foam container for collecting a foam body, and an exhaust unit for discharging the gas separated from the foam body in the container body to the outside. .

[0002]

2. Description of the Related Art For example, as a measure against gas leakage in a conduit for passing city gas, a sealing layer made of a foam-like sealing agent is formed on the inner peripheral surface of the conduit. As a means for efficiently forming a layer, a foam sealant, which is a kind of foam, is fed by gas transfer from one end side of the conduit into the conduit to form the foam sealant on the inner peripheral surface. After efficiently forming the sealing layer over the entire surface of the pipe, a foam is used to collect the foamy sealing agent while separating it from the carrier gas by using the recovery container having the above-mentioned configuration arranged on the other end side of the conduit. The sealing method has already been developed. By the way, in the recovery container, as shown in FIG. 6, conventionally, both the intake port 2 of the foam intake part and the exhaust port 3 of the exhaust part are provided on the ceiling wall 1b of the container 1, In addition, the opening direction is directed to the bottom of the container body 1.
A filter 5 made of glass wool or the like is filled in a portion of the exhaust unit in front of the exhaust port 3 as a means for finally preventing the foam from being discharged together with the carrier gas out of the container. It was furnished in a state.

[0003]

When recovering the foam while separating the foam from the carrier gas using such a conventional recovery container, the opening direction of either the intake port 2 or the exhaust port 3 Also, since it is directed to the bottom of the container body 1, the foam introduced into the container from the intake 2 collides with the bottom surface of the container, and a part of the foam is reflected at the bottom surface to face upward. Will be scattered around. Therefore, even if the discharge unit is equipped with the filter 5 for avoiding discharge of the foam, the foam vigorously moves into the discharge unit together with the carrier gas based on the collision / scattering. There has been a problem that the frequency of entry increases and the frequency of passing through the filter 5 and being discharged to the outside of the container increases, which lowers the efficiency of collecting the foam. This problem tends to be particularly remarkable when the flow rate of the carrier gas is large. The present invention has been made by paying attention to such an actual situation, and an object thereof is to provide a means capable of solving the conventional problem that the collection efficiency of foams is lowered as described above.

[0004]

SUMMARY OF THE INVENTION A foam recovery container according to the present invention (hereinafter referred to as an apparatus of the present invention) is provided with a container body capable of accommodating the foam, and the foam body is placed in the container body. For transport
A foam-like body intake part for taking in from the outside together with gas ,
An exhaust unit for exhausting the gas separated from the foam in the container body to the outside, a foam recovery container provided on the upper part of the container body, wherein the foam intake unit is opposite the inlet to said container body upper portion of the side wall or top wall
The foam taken from the intake
It is configured so as to collide with a side wall or a ceiling wall, and the exhaust port of the exhaust unit is arranged at a side wall or ceiling wall part different in site from a wall part facing the intake port of the upper part of the container body. Is the first characteristic configuration.

In addition, the device of the present invention has the first characteristic configuration, and is provided with a partition wall between the intake port and the exhaust port and on the ceiling wall of the container body. It has a second characteristic configuration.

[0006]

According to the device of the present invention having the first characteristic configuration,
The inlet faces the side wall or ceiling wall of the upper part of the container body .
The foam taken from the intake.
Since the exhaust port is configured to collide with the side wall or the ceiling wall , and the exhaust port is arranged in a part of the side wall or ceiling wall that is different from the wall part facing the intake port of the container main body , The foam taken into the container from the inlet together with the carrier gas will first hit the opposite wall portion of the inlet and will travel down that wall portion first. Then, in the process of passing through the wall portion, the foam is
Always try to hang down toward the bottom of the container due to the effect of gravity. Therefore, it is possible to minimize that the foam introduced from the inlet into the container directly reaches the portion where the exhaust port is disposed, which is different from the wall portion facing the inlet. Like

[0007]

As described above, according to the device of the present invention having the first characteristic configuration, the foamed body taken into the container together with the carrier gas from the inlet is the inlet. Since it can be suppressed as much as possible to directly reach the portion where the exhaust port is disposed, which is different from the wall portion facing each other, the foamed body flows into the discharge portion together with the carrier gas. The frequency with which it vigorously enters and is discharged to the outside of the container via the exhaust port is also significantly lower than in the past, so that the conventional problem that the collection efficiency of the foam is lowered is solved. become.

According to the device of the present invention having the second characteristic structure, since the partition wall is provided between the intake port and the exhaust port and on the ceiling wall of the container body, the partition wall is provided. The presence of the wall prevents foam taken in from the intake from traveling along the wall of the container to the location of the exhaust, from which it will drip. Therefore, the operation and effect of the device of the present invention having the above-described first characteristic configuration becomes more reliable.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the portions denoted by the same reference numerals as the conventional example indicate the same or corresponding portions.

FIG. 1 shows an embodiment of the device of the present invention, and FIG. 2 shows a state of implementation of a foam sealing method which is constructed by using a part of the device.

The foam sealing method will be described first. As shown in FIG. 2, a foam sealing agent A, which is a kind of foam, was added to a gas pipe P (in this embodiment, pipe size:
20A, pipe extension: 10 m) and temporarily stored in the foaming tank 6 arranged on one end side P1. Then, the foam sealing agent A in the foaming tank 6 is gas-transferred from the one end side P1 by gas transportation using the blower 7 (in this embodiment, blow time: 3 minutes, blower flow rate: 38 m ³ / hr). By sending it into the pipe P, the foamy sealant A is spread over the inner peripheral surface of the gas pipe P, and a seal layer for gas leakage prevention is efficiently formed on the inner peripheral surface. Then, after the formation of the sealing layer, the recovery container 8 (that is, the device of the present invention) arranged on the other end side P2 of the gas pipe P is used to discharge and recover the foamy sealing agent while separating it from the carrier gas. (In this example, the discharging time is 5 minutes).

When carrying out such a foam sealing method, the device of the present invention used as the recovery device 8 for the foam sealing agent A is constructed as follows. That is,
As shown in FIG. 1, a container body 1 capable of accommodating a foam sealant A is first provided, and a foam body intake portion for incorporating the foam seal agent A from the outside into the container body 1; An exhaust unit for discharging the gas separated from the foam sealant A in the main body 1 to the outside is provided in the upper portion of the container main body 1. In the present embodiment, the inlet 2 of the foam body intake section is arranged so as to open toward the ceiling wall 1b of the container body 1, and the exhaust port 3 of the exhaust section is provided.
Is disposed in a portion of the ceiling wall 1b (that is, a portion near the end of the ceiling wall 1b) that is different from the wall portion where the intake 2 faces (that is, the portion near the center of the ceiling wall 1b). There is. A partition wall 4 is provided between the intake port 2 and the exhaust port 3 and on the ceiling wall 1b of the container body 1.
Is installed in a drooping position. A filter 5 made of glass wool or the like is provided at a portion of the exhaust unit in front of the exhaust port 3 as a means for finally preventing the foam sealing agent A from being discharged together with the carrier gas outside the container. Is installed in a filled state.

Using the device of the present invention having such a configuration,
When collecting the foamy sealant A, the inlet 2 is
The exhaust port 3 is arranged in a state of opening toward the ceiling wall 1b of the container body 1, and the exhaust port 3 is arranged in a portion of the ceiling wall 1b different from the wall portion facing the intake port 2 and Since the partition wall 4 is provided between the exhaust port 3 and the exhaust port 3 and on the ceiling wall 1b of the container body 1, the foam-like sealant A that is taken into the container from the intake port 2 together with the carrier gas.
Comes into contact with the opposite wall portion first, and first follows the wall portion. Then, in the process of passing through the wall portion, the foam sealing agent A always tries to drop toward the bottom of the container by the action of gravity. Therefore, it is possible to suppress the foamy sealing agent A taken into the container from the intake port 2 to the portion where the exhaust port 3 is disposed at a position different from the wall part facing the intake port 2 as much as possible. become. Moreover, in the process in which the foamy sealant A travels through the wall portion, the presence of the partition wall 4 causes the foamy sealant A introduced from the intake port 2 to be disposed along the wall of the container at the exhaust port 3 disposition part. It will be deterred to move so as to reach.

As a result of actually collecting the foamy sealant A as described above, the foamed sealant A could not be collected even once in the case of the conventional apparatus. If the device is used, the recovery of the foam sealant A is 2
It was possible over a number of times, and the effect of the present invention was confirmed in actual equipment.

Next, another embodiment will be described. In the above-described embodiment, the partition wall 4 is provided between the intake port 2 and the exhaust port 3 and on the ceiling wall 1b of the container body 1.
Foam-like sealant A introduced into the container from the intake port 2
However, it is not always necessary to provide the partition wall 4 under the condition that the wall drops effectively in the process of passing through the wall portion.

Further, as shown in FIG. 3, an embodiment in which the intake port 2 of the intake section is arranged so as to open toward the side wall 1a of the container body 1 is also conceivable. In this example,
The exhaust port 3 of the exhaust unit is arranged in a portion of the ceiling wall 1b that is different in site from the wall portion facing the intake port 2.

Also, as shown in FIG. 4, there is also provided an embodiment in which the intake portion is provided so as to penetrate the side wall 1a of the container body 1 and the intake port 2 thereof is opened toward the ceiling 1b of the container body 1. Conceivable. In addition, in this embodiment, the exhaust port 3 of the exhaust unit is arranged in a portion of the ceiling wall 1b, which is different from the wall portion facing the intake port 2.

Further, as shown in FIG. 5, the intake port 2 of the intake section opens toward the ceiling 1b of the container body 1, and
An embodiment is conceivable in which the exhaust port 3 of the exhaust unit is arranged in the side wall 1a at a site different from the wall part facing the intake port 2.

Also in the other embodiment shown in FIGS. 3 to 5, the partition wall 4 is provided between the intake port 2 and the exhaust port 3 and on the ceiling wall 1b of the container body 1. .

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a first embodiment of the device of the present invention.

FIG. 2 is an explanatory view showing an implementation state of a foam seal construction method using the above apparatus.

FIG. 3 is a longitudinal sectional view showing a second embodiment of the device of the present invention.

FIG. 4 is a longitudinal sectional view showing a third embodiment of the device of the present invention.

FIG. 5 is a vertical sectional view showing a fourth embodiment of the device of the present invention.

FIG. 6 is a vertical sectional view showing a conventional device.

[Explanation of symbols]

1 container body 1a Side wall 1b ceiling wall 2 intake 3 exhaust port 4 partition walls

Claims (2)

(57) [Claims] A container body (1) capable of accommodating a foam body is provided, and a foam body intake portion for incorporating the foam body together with a carrier gas into the container body (1) from the outside. And a discharge part for discharging the gas separated from the foam inside the container body (1) to the outside, which is a foam recovery container provided on the upper part of the container body (1). The inlet (2) of the foam intake portion is opposed to the upper side wall (1a) or ceiling wall (1b) of the container body (1) .
The bubbles taken in from the intake (2)
Collide the body with the side wall (1a) or the ceiling wall (1b).
Configured to so that, the exhaust portion of the exhaust port (3) the volume
A container for collecting foams, which is arranged on a side wall (1a) or a ceiling wall (1b) at a site different from the wall part facing the inlet (2 ) on the upper part of the container body (1) . 2. A ceiling wall (1b) of the container body (1) between the intake port (2) and the exhaust port (3).
The foam container according to claim 1, further comprising a partition wall (4).