JP2935170B2 - Cooling tube cleaning brush launcher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning brush for cleaning the inside of a thin cooling pipe such as a heat exchanger or a condenser mainly used in a nuclear power plant, a thermal power plant, a chemical plant, a recreation facility and the like. The present invention relates to a cooling pipe cleaning brush launcher suitable for firing with air, water, or the like.

[0002]

2. Description of the Related Art Conventionally, in a cleaning brush launcher of this type, a guide member of a cleaning brush set device is communicated above a launching member of a launcher body for launching a cleaning brush, and a guide passage is communicated with a launch passage of the launching member. In a reverse T-shape.

[0003]

Therefore, a cleaning brush set is used for cleaning the inside of a thin cooling pipe such as a heat exchanger or a condenser used in a nuclear power plant, a thermal power plant, a chemical plant, a recreation facility and the like. The cleaning brush that has been dropped and guided in the guide passage of the guide member of the device cannot be smoothly guided to the launch passage of the launch member of the launcher main body, and the guide passage of the guide member and the launch passage of the launch member cannot be guided. Not only may there be a risk of damage to the end or outer peripheral surface of the cleaning brush at the time of firing of the cleaning brush due to clogging at the intersection of The brush could not be reliably fired from the firing opening.

Accordingly, the present invention has been made to solve the above-mentioned problems, and has been developed for use in a nuclear power plant, a thermal power plant, a chemical plant, a recreation facility and the like. When cleaning the inside of a thin cooling pipe, it is necessary to ensure that the end and outer peripheral surface of the cleaning brush are not damaged when the cleaning brush is fired, and that the cleaning brush can be reliably fired from the firing port. A cooling pipe cleaning brush launcher is provided.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, a cooling pipe cleaning brush launcher according to the present invention is provided with a cleaning brush set device above a firing member of a launcher body for cleaning brush firing. In a cooling pipe cleaning brush emitter in which the guide member is connected to the firing passage of the firing member such that the guide passage communicates with the firing passage, a check valve is supported at the upper end of the guide member in the guide passage so as to be openable and closable. At the same time, inside the firing member and the guide member, an air supply pipe having an air supply port with a ball valve at one end and an air outlet at the other end, and an air supply port with a ball valve at one end. Is mounted so that the firing member is exposed to the outside and the air outlet is communicated with the lower side of the check valve in the guide passage of the guide member, and a cleaning brush is provided at the distal end firing portion of the firing passage of the firing member. set After that, the ball valve of the air supply pipe is operated at a shifted timing, and the air blown out from the air outlet of the air supply pipe closes the check valve in the guide passage of the guide member, and the air that lost the escape area Is sent to the firing port side together with the cleaning brush.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION As an embodiment of the present invention, the inside of a thin cooling pipe such as a heat exchanger or a condenser used in a nuclear power plant, a thermal power plant, a chemical plant, a recreation facility and the like will be described. The state in which the exclusive brush is fired with air or water will be described with reference to the drawings.

In FIG. 1 to FIG. 6, reference numeral 1 denotes a cylindrical launcher body for launching a cleaning brush A. The launcher body 1 has a launching passage 2 for the cleaning brush A therein. A water supply port 5 provided with a flow rate control valve 4 and a ball valve 6 for controlling water stoppage from the water supply port 5 are provided on the base operation side of the firing member 3 through a joint 7 through the firing passage. The cleaning member A is formed so as to be connected to the cleaning brush A on the distal end emission side of the emission member 3.

Reference numeral 11 denotes a cleaning brush setting device for setting the cleaning brush A in the firing passage 2 of the firing member 3 of the launcher main body 1.
1 is provided with a holding member 14 in which a moving portion 13 is provided along the front-to-back direction on the top surface of the distal end side of the support plate 12, and the moving portion 13 in the holding member 14 has Hole 1
5 is movably inserted in the direction of the base end through a cylinder 17 for the cleaning brush A set provided on the base side upper surface of the support plate 12, the holding body 16 provided along the vertical direction, An input port 18 for the cleaning brush A is provided on the upper side of the holding member 14 so as to be able to communicate with the holding hole 15 of the holder 16 via an input port 19, and further, on the lower side of the holding member 14, A guide member 21 provided with a guide passage 20 for guiding the cleaning brush A to the firing passage 2 of the firing member 3 of the launcher main body 1 along the vertical direction is held by the holding member 16 through a guide hole 22. It is formed so as to be freely communicated with the hole 15.

The cleaning brush set device 1 is disposed above the firing member 3 of the launcher body 1 formed as described above.
In the cooling pipe cleaning brush launcher in which the first guide member 21 is connected to the firing passage 2 of the firing member 3 so that the guide passage 20 is communicated with the firing member 2, the upper end of the guide member 21 in the guide passage 20 is non-returned. In addition to supporting the valve 23 so that it can be opened and closed, the inside of the firing member 3 and the guide member 21 has an air supply port 25 with a ball valve 24 for adjusting the air flow at one end and an air outlet 26 at the other end. The air supply pipe 27 communicates with the air supply port 25 with the ball valve 24 outwardly from the firing member 3 and the air outlet 26 below the check valve 23 in the guide passage 20 of the guide member 21. The guide passage 20 of the guide member 21 and the intersection of the firing passage 2 of the firing member 3
A guide path 28 for guiding the brush A smoothly is provided, which is slightly inclined from the vicinity of the lower end of 0 to the tip end emission side of the emission path 2.

Reference numeral 29 in the drawing denotes a blind plug for forming the air supply pipe 27.

Next, the use state of the embodiment of the present invention will be described. First, as shown in FIG. 3, the cleaning brush A is held in the holding hole 15 of the holding body 16 of the cleaning brush set device 11.
Is held from the inlet 18 through the inlet 19, and then air (57 kg / cm ² ) is supplied from the cylinder 17 and the air supply port 25 of the air supply pipe 27. Here, water (5-7 kgf / cm ² ) is also supplied when water is poured, and the water pressure / flow rate is adjusted only in the case of water.

Subsequently, as shown in FIG.
When a switch (mechanical valve) (not shown) provided on the base operation side of the firing member 3 of the
Is activated, the holding body 16 moves in the moving portion 13 in the distal direction, and is held in the holding hole 15 at a position where the holding hole 15 of the holding body 16 and the guide hole 22 of the support plate 12 match. The cleaning brush A falls into the guide passage 20 of the guide member 21.

As shown in FIG. 5, the cleaning brush A that has fallen into the guide passage 20 of the guide member 21 passes through the guide passage 20 from the guide passage 20 of the guide member 21 and the firing passage of the firing member 3 of the launcher body 1 as shown in FIG. 2 and is set by being guided to the tip firing section.

Then, as shown in FIGS. 2 and 6, after the cleaning brush A is set at the distal end firing portion of the firing passage 2 of the firing member 3, the timing is shifted so that the air supply pipe 27 or the water supply port 5 is closed. When the ball valves 24 and 6 are operated,
The check valve 23 in the guide passage 20 of the guide member 21 is closed by the air blown out from the air outlet 26 of the air supply pipe 27, and the air or water that has lost its escape space is flushed with the cleaning brush A on the firing port 8 side. The cleaning brush A is fired from the firing port 8. After the cleaning brush A is fired, water remaining in the firing passage 2 of the firing member 3 and the guide passage 20 of the guide member 21 is discharged from a discharge port (not shown) provided in a part of the firing passage 2 of the firing member 3. ).

[0015]

According to the cooling pipe cleaning brush launcher of the present invention, the guide member 21 of the cleaning brush set device 11 is provided above the launching member 3 of the launcher body 1 for launching the cleaning brush A, and the launching passage of the launching member 3 is provided. In the brush launcher for cleaning a cooling pipe connected so that the guide passage 20 is communicated with the second, a check valve 23 is supported at the upper end of the guide member 21 in the guide passage 20 so as to be openable and closable. Member 3 and guide member 21
One end of the ball valve 24 for adjusting the air stop
An air supply pipe 27 having an air supply port 25 with an air outlet 26 at the other end, an air supply port 25 with a ball valve 24 is exposed outward from the firing member 3 and the air outlet 26 is Guide passage 2 of guide member 21
0, the cleaning brush A is set at the leading end firing portion of the firing passage 2 of the firing member 3 by being attached so as to be communicated with the lower side of the check valve 23 within the check valve 23. When the ball valve 24 (or the ball valve 6 of the water supply port 5) is operated, the check valve 23 in the guide passage 20 of the guide member 21 is closed by the air blown from the air outlet 26 of the air supply pipe 27. Since the air (or water) that has lost the escape space is sent to the firing port 8 side together with the cleaning brush A, the cleaning brush A can be reliably fired from the firing port 8.

When cleaning the inside of a thin cooling pipe such as a heat exchanger or a condenser used in a nuclear power plant, a thermal power plant, a chemical plant, a recreation facility, or the like, the guide member 21 of the cleaning brush set device 11 is used. The washing brush A that has fallen into the guide passage 20 is guided smoothly through the guide passage 28 to the distal end launching portion of the launching passage 2 of the launching member 3 of the launcher body 1.
Since the cleaning brush A can be surely set to the forward end of the firing passage 2 of the firing member 3 in the forward direction, the cleaning brush A crosses the guide passage 20 of the guide member 21 and the firing passage 2 of the firing member 3 as in the related art. The end portion and the outer peripheral surface of the cleaning brush A are surely prevented from being damaged when the cleaning brush A is fired without being clogged in the portion or being bent and set at the distal end firing portion of the firing passage 2 of the firing member 3. can do.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of a cooling pipe cleaning brush launcher of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a vertical sectional side view of a main part showing a state where the cleaning brush is held in a holding hole of a holding body from a charging port.

FIG. 4 is a vertical sectional side view showing a state where the cleaning brush is dropped from a holding hole of a holding member into a guide passage of a guide member.

FIG. 5 is a vertical sectional side view showing a state where a cleaning brush is set in a distal end firing portion of a firing passage of a firing member.

FIG. 6 is a vertical sectional side view of a main part showing a state in which the cleaning brush is fired from a firing port on the distal end firing side of a firing path of the firing member.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 launcher main body 2 launch passage 3 launch member 4 flow control valve 5 water supply port 6 ball valve 7 joint 8 launch port 11 cleaning brush set device 12 support plate 13 moving unit 14 holding member 15 holding hole 16 holding body 17 cylinder 18 injection Mouth 19 Input hole 20 Guide passage 21 Guide member 22 Guide hole 23 Check valve 24 Ball valve 25 Air supply port 26 Air outlet 27 Air supply pipe 28 Induction passage 29 Blind plug A Washing brush

Continuation of the front page (56) References JP-A-54-88661 (JP, A) JP-A-55-8851 (JP, A) JP-A-55-20691 (JP, A) JP-A-58-27679 (JP) JP-A-56-10383 (JP, A) JP-A-59-58087 (JP, U) JP-A-61-141598 (JP, U) JP-A 48-28807 (JP, Y1) JP-A 47-14043 (JP, Y1) (58) Field surveyed (Int. Cl. ⁶ , DB name) B08B 1/00-11/04

Claims (1)

(57) [Claims] 1. A cooling pipe cleaning brush in which a guide member of a cleaning brush setting device is connected to an upper side of a launching member of a launcher body for launching a cleaning brush, and the guide passage is communicated with a launching passage of the launching member. In the launcher, a check valve is openably and closably supported at an upper end portion in a guide passage of the guide member, and an air supply with a ball valve for adjusting air out / stop is provided at one end inside the launch member and the guide member. An air supply pipe having a port and an air outlet at the other end, an air supply port with a ball valve being exposed outward from the firing member, and an air outlet having a check valve in a guide passage of the guide member. A cooling pipe cleaning brush launcher, which is mounted so as to communicate with a lower side.