Flexible spray gun for treating or inspecting tube bottoms of steam generators

A steam generator and flexible technology, applied in steam generation, steam boiler components, steam boilers, etc., can solve the problems of high price, small manufacturing tolerance, high accuracy, etc., to save materials, improve flexibility, and avoid bending Effect

Active Publication Date: 2019-09-24
フラマトムゲゼルシャフトミットベシュレンクテルハフツング
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Introducing openings into the two strips and connecting the two strips so that the openings are arranged overlapping to reliably avoid jamming is expensive and also requires great accuracy or very small manufacturing tolerances

Method used

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  • Flexible spray gun for treating or inspecting tube bottoms of steam generators
  • Flexible spray gun for treating or inspecting tube bottoms of steam generators
  • Flexible spray gun for treating or inspecting tube bottoms of steam generators

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] figure 1 A flexible lance 2 for treating or inspecting the tube bottom of a steam generator is shown. The flexible spray gun 2 consists of a flexible metallic first strip 4 and a flexible metallic second strip 6 . The two strips 4 , 6 are made of spring steel, for example chrome-nickel steel, and have a thickness or wall thickness of approximately 0.1 to 0.3 mm. Width B of the first belt 4 1 About 40mm, the width B of the second belt 6 2 About 24mm. Therefore, the second strip 6 has a smaller width than the first strip 4 . The second belt 6 is arranged on the first belt 4 in the longitudinal direction L and has a forming 8 or housing extending in the longitudinal direction L to accommodate three supply lines 10 which are connected to free lances arranged on the flexible spray gun 2 . Processing head or inspection head at end 12 (in figure 1 not shown for clarity). The profile 8 has a profile that is U-shaped in cross section and extends in the longitudinal direct...

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PUM

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Abstract

The invention relates to a flexible lance (2) for treating or inspecting the pipe bottom of a steam generator, the flexible lance having a first strip (4) of flexible metallic material and a second strip (4) of flexible metallic material Belt (6), wherein the second belt (6) is arranged on the first belt (4) in the longitudinal direction (L), and wherein at least the second belt (6) has a forming extending in the longitudinal direction (L) (8) to accommodate the supply line (10) for the treatment head or inspection head (66) arranged at the free end (12) of the flexible spray gun (2) and wherein the first belt (4) is connected to the second a belt (6) such that the open side of the forming portion (8) is covered by the first belt (4), thereby forming a guide channel (18), and wherein at least one of the flexible spray guns (2) extends in the longitudinal direction (L) The edge region (20, 22) is formed only by the first strip (4) or the second strip (6).

Description

technical field [0001] The invention relates to a flexible lance for processing (Bearbeiten) or inspecting pipe bottoms (Rohrboden) of steam generators (Dampferzeuger), which has a first belt and a second belt, which are each made of a flexible metal material, And forming a shaped portion extending in the longitudinal direction to accommodate a supply line for a processing head or inspection head arranged at the free end of the flexible lance. Background technique [0002] After running for a period of time, impurities will be deposited on the tube bottom of the steam generator, especially on the tube bottom of the nuclear steam generator, and these impurities may have a height of several centimeters in some positions. These cohesive and very hard impurities or deposits can cause damage to steam generator tubes arranged in close proximity. Therefore, it is necessary to periodically check whether such impurities are formed and the degree of formation of impurities. To avoid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B37/48
CPCF22B37/483F23J1/04F28G1/166F22B37/52F22B37/54F22B37/005
Inventor 扎菲尔·阿拉兹
Owner フラマトムゲゼルシャフトミットベシュレンクテルハフツング
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