JPH043659Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention provides a connection part for the supply target at one end of the pipe, connects a blower to the other end of the pipe, and connects the pipe to the inner lining layer. The present invention relates to a reinforcing material supply device for repairing pipes, which is provided with means for supplying fine reinforcing material into the airflow within the pipe.

[Conventional technology]

Conventionally, as means for supplying reinforcing material, there has been an apparatus configured to cut long fibers with a cutter to produce fine reinforcing material, and intermittently supply the reinforcing material into gas from a blower.

[Problem that the invention attempts to solve]

However, the amount of reinforcing material supplied due to airflow transportation increases, and when reinforcing material is supplied into the pipe and mixed or attached to the lining material on the inner surface of the pipe, the distribution of the reinforcing material becomes uneven. , the strength of the lining layer varies depending on the location,
There were problems with the reliability of pipe repair, and there was room for further improvement.

An object of the present invention is to enable quantitative continuous supply of reinforcing material by air flow conveyance, and also to enable continuous supply of reinforcing material over a long period of time using a small-sized reinforcing material supplying means.

[Means for solving problems]

The characteristic configuration of the present invention is that the means for supplying the reinforcing material into the airflow in the pipe line by the blower includes an ejector that applies suction force to the suction pipe by the action of high-speed gas from the blower, and The present invention consists of a dispersion tank for dispersing the reinforcing material into the water, and a preliminary dispersion and replenishment tank for supplying the stored reinforcing material to the dispersion tank using suction gas from the suction pipe, and its functions and effects are as follows.

[Operation] In other words, when high-speed gas is supplied from the blower, the action of the ejector causes the preliminary dispersion and replenishment tank, the dispersion tank,
Via the suction tube, the reinforcement conveying gas is sucked into the high velocity gas. Then, in the preliminary dispersion and supply tank,
The stored reinforcing material is dispersed little by little into the transportation gas, and the dispersed reinforcing material is carried by air flow into the dispersion tank. In addition, the reinforcing material is further dispersed in the dispersion tank, and even if the amount of reinforcing material supplied to the dispersion tank fluctuates to some extent, the averaging effect of the dispersion tank allows the reinforcement material to be supplied to the suction tube quantitatively. Can be continued.

Furthermore, even if the pre-dispersion/replenishment tank is replenished with reinforcing material, the equalizing effect of the dispersion tank maintains a constant supply of the reinforcing material to the suction pipe, thus reducing the storage capacity of the pre-dispersion/supply tank. However, by replenishing the reinforcing material, it is possible to supply the reinforcing material in a constant quantity over a long period of time.

[Effect of idea]

As a result, the reinforcing material can be supplied to the pipe lining layer in a uniformly distributed state, and highly reliable pipe repair can be ensured.

Furthermore, even in the case of large-diameter, long pipes that require long-term supply of reinforcing material, it is possible to adequately supply reinforcing material with small equipment, which is advantageous in terms of equipment costs and workability.

〔Example〕

Next, an example will be shown with reference to FIG.

A connection part 1a for the reinforcement material to be supplied is provided at one end of the pipe 1, a blower 2 is connected to the other end of the pipe 1, and high-speed gas sufficient for the air flow of the reinforcing material flows through the pipe 1. It is structured as follows.

An ejector configured to apply suction force to the suction pipe 3 by the action of high-speed gas from the blower 2 is provided in the middle of the pipe line 1, and a reinforcing material dispersion tank 4 is provided in the suction pipe 3.
A preliminary dispersion/replenishment tank 7 for reinforcing material is connected to the dispersion tank 4 by a transport pipe 6 with a flow rate adjustment valve 5.
Then, the reinforcing material put into the supply tank 7 from the opening 7a is airflow conveyed in appropriate amounts to the dispersion tank 4 by the transport gas sucked by the ejector, and
, the reinforcing material is sufficiently dispersed in the gas, and only the sufficiently dispersed reinforcing material is sent to the suction pipe 3 by the action of the dispersion plate 4a, and the reinforcing material is dispersed in the high-speed gas supplied to the inner lining layer of the pipe to be repaired. It is designed to mix evenly.

Next, an example of the use of the reinforcing material supplying device A for repairing pipes is shown in FIG. 2.

As shown in FIG. 2A, the pipe 8 with the bent portion 8a is cut and opened at an appropriate position commensurate with the repair area, and a lid body 10 is connected to the liquid lining material supply device 9 and the reinforcing material supply device A. is connected to one end side of the pipe 8, and the liquid lining material and reinforcing material recovery device 1 is connected to one end side of the pipe 8.
1 and a cover 13 connected to an exhaust fan 12 are connected to the other end of the pipe 8. The piping 8 is mainly an existing conduit for city gas, natural gas, water supply, or others, but it may be any type of newly installed piping or any other type of piping.

The liquid lining material supply device 9, the blower 2, and the exhaust fan 12 are operated, and the flow rate adjustment valve 5 is fully closed to turn the gas-liquid multiphase flow of the liquid lining material and gas into an annular flow, as shown in FIG. 2B. In other words, the gas G containing the finely divided liquid lining material is made to flow at a high speed in the center of the pipe, and most of the liquid lining material L is caused to flow along the inner surface of the pipe. send. Further, the fine liquid lining material is collected in a collector 11 and only the gas is released.

After applying the liquid lining material L to an appropriate lining thickness over the entire inner surface of the pipe 8, the liquid lining material supply device 9 is stopped, and then the flow rate adjustment valve 5 is appropriately opened to uniformly apply the reinforcing material. The mixed gas is made to flow at high speed within the pipe 8, and the reinforcing material R is attached to the lining material L only at the radial side portion of the bent portion 8a, as shown in FIG. 2C.
Further, the reinforcing material is collected in a collector 11 and only the gas is released.

After that, the blower 2 and the exhaust fan 12 are stopped,
The lids 10 and 13 are removed from the pipe 8, and the pipe 8 is restored and connected.

[Another example]

Next, another embodiment will be described.

The specific configurations of the dispersion tank 4 and the preliminary dispersion/replenishment tank 7 can be changed as appropriate depending on the target reinforcing material.

The reinforcing material can be selected appropriately in terms of material, size, shape, mixing ratio, etc. Generally, fibers such as glass fiber, carbon fiber, vinylon, natural fiber, etc. are used, and the length is 30 mm or less, preferably 20 mm. Below, the thickness is 1000μ or less, preferably
It is mixed at a ratio of about 5 to 20 wt%, with a thickness of 10μ or less.

The specific configuration of the blower 2 can be changed appropriately, and
The gas supplied by the blower 2 can be air or any other suitable gas.

The form of use of the reinforcing material in the inner pipe lining layer can be freely selected. For example, the reinforcing material may be attached or mixed into the inner pipe lining layer over almost the entire length of the pipe 8, or the reinforcing material may be attached or mixed into the inner pipe lining layer only at the bent portion 8a or
It may be interposed between the lining layer and the pipe 8 over the entire length.

The supply object to which the pipe line 1 is connected can be appropriately selected depending on the usage form of the reinforcing material, and may be, for example, a mixer of liquid lining material and reinforcing material.

[Brief explanation of the drawing]

1 and 2 are conceptual diagrams showing embodiments of the present invention, respectively. 1...Pipeline, 1a...Connection part, 2...Blower,
3... Suction pipe, 4... Dispersion tank, 7... Preliminary dispersion and supply tank.

Claims (1)

[Scope of utility model registration request] At one end of the pipe line 1, there is a connection part 1 for the supply target.
a, a blower 2 is connected to the other end of the pipe 1, and a reinforcing material supply device for repairing pipes is provided with a means for supplying fine reinforcing material for the pipe lining layer into the airflow in the pipe 1. The reinforcing material supplying means includes an ejector that applies suction force to the suction pipe 3 by the action of high-speed gas from the blower 2, and a dispersion tank 4 that disperses the reinforcing material into the suction gas from the suction pipe 3. , and a preliminary dispersion/replenishment tank 7 for supplying the stored reinforcing material to the dispersion tank 4 using suction gas from the suction pipe 3.