JP2574782B2 - Cleaning body collection device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning element collecting device for collecting a cleaning element for cleaning a heat exchanger tube of a heat exchanger, and in particular, upstream of a cleaning element repairing apparatus. The present invention relates to a cleaning body collecting device capable of effectively collecting a cleaning body even when a drift occurs on the side.

[Conventional technology]

As shown in Japanese Utility Model Application Laid-Open No. 60-38393, a conventional cleaning body collecting device is installed in a flow path of cooling water discharged from a heat exchanger and cleans an inner surface of a heat transfer tube of the heat exchanger. This is to collect the washing body that is washed away. And it has a body which flows cooling water, a lattice member which collects washing bodies through cooling water, and an extraction pipe which extracts washing bodies.

Further, a cleaning body collecting device shown in FIG. 2 (Japanese Patent Publication No. 52-1186)
No. 62) has a lattice member 2 formed to be inclined inside a body 1. The cleaning body collected by the grid member 2 rolls on the grid member 2 and is taken out from the extraction pipe 6 of the cleaning body. Note that the grid member 2 moves about the rotation axis 3.

For example, as shown in FIG. 2, when the pipe for guiding the cooling water to the cleaning body collecting device is an inlet curved pipe 7 having a curved portion, drifting of the cooling water occurs. When the drift occurs, the cleaning body flowing together with the cooling water does not roll in the direction of the extraction pipe 6, and it is difficult to collect the cleaning body.

For this reason, when a pipe such as the inlet curved pipe 7 that is likely to cause drift is connected to the cleaning body collecting device, the rectifying plate 9 is provided inside the inlet curved pipe 7 for the purpose of suppressing the drift. Reference numeral 8 denotes an outlet curved pipe.

[Problems to be solved by the invention]

However, since the current plate shown in FIG. 2 is installed inside a pipe having a curved portion, it is difficult and expensive to manufacture. If straightening piping is used to rectify the cooling water in order to reduce the cost, the length of the straight piping becomes long, and there is a problem that it cannot be installed in a narrow plant.

Therefore, an object of the present invention is to provide a cleaning body collecting device that suppresses the drift of cooling water inside the body of the cleaning body collecting device.

[Means for solving the problem]

The cleaning body collecting device of the present invention is provided in a flow path of cooling water discharged from a heat exchanger, and collects a cleaning body flowing for cleaning an inner surface of a heat transfer tube of the heat exchanger. hand,
A body through which the cooling water flows, a cooling body through which the cooling water flows, and a cleaning member are collected, and a V-shaped lattice member whose downstream side is convex with respect to the flow direction of the cooling water, and a cleaning body from the downstream end of the lattice member. And an extraction tube for extracting the water.

Then, a rectifying member is provided inside the body, which is located near the downstream end of the V-shaped lattice member. This rectifying member has the effect of rectifying the cooling water.

[Action]

The flow of the cooling water flowing perpendicular to the lattice member is
It collides with a rectifying member installed inside the fuselage. This suppresses the drift of the cooling water that hinders the rolling of the cleaning body.

〔Example〕

 Hereinafter, an embodiment of the present invention will be described with reference to FIG.

The washing body collecting device shown in FIG. 1 is installed in the flow path of the cooling water discharged from the heat exchanger, and collects the washing body flowing to wash the inner surface of the heat transfer tube of the heat exchanger. Things.

And the washing | cleaning body collection device, the fuselage 1 which flows cooling water,
A lattice member 2 formed by passing the cooling water and collecting the cleaning bodies, forming a V-shape on the downstream side with respect to the flow direction of the cooling water;
Extraction tube 6 for extracting the washing body from the downstream end of lattice member 2
And The lattice member 2 operates around the rotating shaft 3 and causes foreign substances such as shellfish removed when the cleaning body cleans the inner surface of the heat transfer tube of the heat exchanger to flow downstream.

A rectifying member 4 having a cooling water rectifying effect is formed inside the body 1 and is installed so as to reach near the downstream end of the V-shaped lattice member 2.

Although not shown in FIG. 1, for example, when a pipe having a curved portion is installed on the upstream side, most of the cooling water flows in parallel with the body 1, but the cooling water flows like the water stream a. Flow also occurs. Such a water flow is considered to be a cause of the drift. However, the water flow that contacts the rectifying member and is reversed by forming the rectifying member 4 collides with the rectifying member 4 and takes a lot of energy, so that the drift can be suppressed.

 Further, a reinforcing member 5 is formed on the rectifying member 4.

Since the rectifying member 4 and the reinforcing member 5 make contact with the rectifying member 4 and the reinforcing member 5 and invert a part of the water flow, a large amount of energy is taken by the vortex b formed downstream of the reinforcing member 5. The flow velocity is further reduced as compared with the case where only 4 is installed, and a flow parallel to the fuselage 1 can be created in a shorter section.

Further, the rectifying member 4 can be strengthened by the reinforcing member 5, and the rectifying member 4 can be reduced in weight.

〔The invention's effect〕

According to the present invention, since the cooling water is rectified inside the body, a rectifying plate is not required on the upstream side. There is an effect that it can be installed even in a narrow pipe.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a conventional cleaning body collecting device. DESCRIPTION OF SYMBOLS 1 ... Body, 2 ... Lattice member, 3 ... Rotating shaft, 4 ... Rectifying member, 5 ... Reinforcement member, 6 ... Extraction tube, 7 ... Inlet curved tube, 8 ... Outlet curved tube, 9 ……rectifier.

Claims (1)

(57) [Claims] 1. A body which is provided in a flow path of cooling water discharged from a heat exchanger, collects a cleaning body flowing to clean an inner surface of a heat transfer tube of the heat exchanger, and flows the cooling water. And a lattice member formed by passing the cooling water and collecting the cleaning body, and having a V-shape convex on the downstream side with respect to the flow direction of the cooling water, and the cleaning body from a downstream end of the lattice member. A washing body collecting apparatus having an extraction pipe for extracting water, wherein a rectifying member having a rectifying effect of rectifying the cooling water is provided inside the body, reaching the vicinity of a downstream end of the lattice member. A cleaning body collecting device characterized by the following.