JPH043660Y2 - - 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 a reinforcing material supply means, there has been a device configured to cut long fibers with a cutter to produce fine reinforcing materials, and intermittently supply the reinforcing materials 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.

The purpose of the present invention is to be able to quantitatively and continuously supply the reinforcing material by air conveyance, and to be able to supply the reinforcing material well even if it is thick and long.

[Means for solving problems]

The characteristic configuration of the present invention is such that the means for supplying the reinforcing material into the airflow in the pipe by the blower includes a dispersion/replenishment tank that stores the reinforcing material in a suspended state with gas;
The dispersion/supply tank is comprised of a blower that supplies under pressure a gas for floating and transporting the reinforcing material, and the discharge port of the dispersion/supply tank for the gas mixed with the reinforcing material is connected to the pipe. The effects are as follows.

[Function] In other words, since the reinforcing material is stored in a suspended state by the transport gas, it is uniformly dispersed and mixed into the transport gas sent from the outlet to the pipe, and the reinforcing material is quantitatively supplied to the pipe. can be continued.

Furthermore, because the pressurized gas from the blower maintains the reinforcing material in a floating state and transports it through airflow, it is possible to freely set the gas supply state to match the reinforcing material, compared to the case where suction gas is used, for example. Even if the reinforcing material is thick and long and difficult to transport by airflow, the reinforcing material can be supplied in a constant quantity to the conduit.

[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, the reinforcing material can be freely selected from thin and short to thick and long, and the thickness of the reinforcing material layer inside the pipe and the reinforcing material-mixed lining material layer can be set over a wide range depending on the situation, making pipe repair reliable. You can further enhance your sexuality.

〔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.

The discharge port 3a of the dispersion/replenishment tank 3 for the reinforcing material is connected to the pipe line 1 to form an ejector that applies suction force to the discharge port 3a by the action of high-speed gas from the blower 2, and is equipped with a flow rate regulating valve 4. A blower 6 is connected to the dispersion/replenishment tank 3 through the trachea 5, and fine reinforcing material is formed in the dispersion/replenishment tank 3 by the spiral flow of gas from the air supply pipe 5 around the pipe 1. The high-speed gas is stored in a floating state and is sent to the pipe line 1 from the discharge port 3a by the transportation action of the gas from the air supply pipe 5 and the suction action of the ejector, and is supplied to the inner lining layer of the pipe to be repaired. The structure is such that the reinforcing material is uniformly mixed therein. Note that 3b is a weir plate, and 3c is a reinforcing material supply lid.

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 7 with the bent portion 7a is cut and opened at an appropriate position commensurate with the repair area, and the lid 9 is connected to the liquid lining material supply device 8 and the reinforcing material supply device A. is connected to one end side of the pipe 7, and a recovery device 10 for liquid lining material and reinforcing material is connected to one end side of the pipe 7.
The lid 12 connected to the exhaust fan 11 is connected to the other end of the pipe 7. The piping 7 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 anything else.

The liquid lining material supply device 8, the blower 2, and the exhaust fan 11 are operated, and the flow rate adjustment valve 4 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 caused 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 finely divided liquid lining material is collected in the collector 10 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 7, the liquid lining material supply device 8 is stopped, and then the blower 6 is activated and the flow rate adjustment valve 4 is opened appropriately. A gas uniformly mixed with the reinforcing material is caused to flow at high speed in the pipe 7, and the reinforcing material R is attached to the lining material L only on the radial side of the curved portion 7a, as shown in FIG. 2C. Moreover, the surplus reinforcing material is collected by the collector 10, and only the gas is released.

Thereafter, the blowers 2 and 6 and the exhaust fan 11 are stopped, the lids 9 and 12 are removed from the pipe 7, and the pipe 7 is restored and connected.

[Another example]

Next, another embodiment will be described.

The specific configuration of the dispersion/replenishment tank 3 can be changed appropriately depending on the target reinforcing material.

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

The specific configuration of the blowers 2 and 6 can be changed as appropriate. For example, one blower 2 may be configured to distribute gas to the pipe line 1 and the supply pipe 5, or the blowers 2 and 6 may distribute gas to the pipe 1 and the supply pipe 5. You can choose air or any other suitable option.

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 to or mixed into the inner pipe lining layer over almost the entire length of the pipe 7, or the reinforcing material may be attached to or mixed in the inner pipe lining layer over almost the entire length of the pipe 7, or only at the bent portion 1a or in the pipe 7.
It may be interposed between the lining layer and the pipe 7 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 drawings]

1 and 2 are conceptual diagrams showing embodiments of the present invention, respectively. 1...Pipeline, 1a...Connection part, 2...Blower,
3...Distribution and supply tank, 3a...Discharge port, 6...Blower.

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 means for supplying fine reinforcing material for the pipe lining layer into the airflow in the pipe 1 is provided. The reinforcing material supplying means includes a dispersion/replenishment tank 3 in which the reinforcing material is stored in a suspended state by gas, and a dispersion/replenishment tank 3 thereof.
The reinforcing material for repairing inside the pipe has a blower 6 that pressurizes a floating and transporting gas to the reinforcing material, and the reinforcing material mixed gas outlet 3a of the dispersion/replenishment tank 3 is connected to the pipe line 1. Feeding device.