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Polishing and cleaning tool for inner holes of tube plates of condensers

A technology of condenser tubes and inner holes, which is applied in the direction of manufacturing tools, machine tools designed for grinding the rotating surface of workpieces, grinding machines, etc., which can solve the problems of large differences in the cleanliness of the tube holes and slow speed of the tube holes, and achieve improved Labor efficiency and safety factor, fast filling speed, clean and consistent effect

Inactive Publication Date: 2014-09-17
POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, a brush dipped in a solvent was used to clean the oil stains, and then sandpaper was used to polish the pipe hole rust.

Method used

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  • Polishing and cleaning tool for inner holes of tube plates of condensers
  • Polishing and cleaning tool for inner holes of tube plates of condensers

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Experimental program
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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0014] Such as figure 1 , 2 As shown, a grinding and cleaning tool for the inner hole of a condenser tube plate of the present invention includes an electric drill 1 with a drill chuck 2, the drill chuck 2 holds a grinding handle 3, and the end of the grinding handle 3 is provided with a cylindrical The grinding head 4 is provided with an axial card groove 5 on the grinding head 4, and the card groove 5 is opened on the top, bottom and outer peripheral surface of the grinding head 4, and sandpaper is wound on the outer peripheral surface of the grinding head 4, and the sandpaper The end is inserted into the card slot 5.

[0015] Grinding head 4 diameters can subtract 2~3mm processing according to the size of tube hole diameter, so that winding sandpaper, length should be equated with the tube hole length being polished. The cross-section of the grinding handle 3 is...

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Abstract

The invention provides a polishing and cleaning tool for inner holes of tube plates of condensers. The polishing and cleaning tool comprises an electric drill with a drill chuck, a polishing handle is clamped by the drill chuck, a cylindrical polishing head is arranged at the end of the polishing handle, the polishing head is provided with an axial clamping groove, openings of the clamping groove are formed in the top, the bottom and the outer circumferential surface of the polishing head, abrasive paper is wound around the outer circumferential surface of the polishing head, and the tail end of the abrasive paper is inserted into the clamping groove. The polishing and cleaning tool has the advantages that the filling speed of the abrasive paper is high, the pipe holes are cleaned up uniformly, polishing speed is multiple times that of a manual method, the inner walls of the pipe holes can be rapidly polished to be smooth, no oil dirt or oxidation layer or dust is formed, and labor efficiency and security coefficients are increased.

Description

technical field [0001] The invention relates to a grinding and cleaning tool for the inner hole of a condenser tube plate. Background technique [0002] At present, the cooling water pipe of the condenser is usually bulged on the end tube plate, and the cleanliness of the tube hole has a great influence on the quality of the expansion mouth. If the tube hole is not clean, the expansion tube will not be firm, and the circulating cooling water will leak into the condensed water , thus causing the hardness of the condensed water to exceed the standard, resulting in a decrease in the quality of steam turbine water, and may cause the boiler tube to burst. [0003] Condenser in a power plant. The workload of tube hole cleaning is relatively large. Taking the installation of a 300MW unit condenser as an example, a single condenser needs to install more than 23,000 cooling water pipes, and there are more than 46,000 tube holes in the tube plates at both ends. Each pipe hole needs t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B27/033
CPCB24B27/033B24B5/40B24B23/02
Inventor 齐建军罗佃华荀向阳
Owner POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD
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