Pair rubber ball for cleaning and descaling in heat-exchange tubes

A technology for heat exchange tubes and rubber balls, which can be used in cleaning methods and utensils, cleaning hollow objects, cleaning heat transfer devices, etc., and can solve the problems of easy pipe blocking, low ball collection rate, and difficult wet diameter and specific gravity of rubber balls. , to achieve long life, not easy to block, good effect

Inactive Publication Date: 2010-10-13
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, online rubber ball cleaning technology is widely used in power plant condensers, but the rubber balls currently used are microporous and soft elastomer structures, and it is difficult to accurately control the wet diameter and specific gravity of the rubber balls during use. It is easy to be attached by sludge, dirt and microorganisms, etc., causing problems such as unsatisfactory cleaning and descaling effects, low ball collection rate, and easy plugging.

Method used

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  • Pair rubber ball for cleaning and descaling in heat-exchange tubes
  • Pair rubber ball for cleaning and descaling in heat-exchange tubes
  • Pair rubber ball for cleaning and descaling in heat-exchange tubes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] figure 1 is a schematic diagram of a two-dimensional structure of Embodiment 1 of the present invention, figure 2 is a schematic diagram of a three-dimensional structure of Embodiment 1 of the present invention, image 3 It is the first embodiment of the present invention figure 1 A schematic diagram of the structure in the Figure 4 It is the first embodiment of the present invention figure 1 Schematic diagram of the B-B cross-sectional structure in .

[0033] like figure 1 and figure 2 As shown, this embodiment includes a solid column 1, 8 inclined fins 2 on the column 1, a solid column 3, 8 inclined fins 4 on the column 3, and a column 5 elastically connected in the middle. In this embodiment, the solid columnar body 1 and eight inclined fins 2 form a cleaning and descaling rubber ball, the solid columnar body 3 and eight inclined fins 4 form another cleaning and descaling rubber ball, and the two cleaning and descaling The rubber balls are connected as a wh...

Embodiment 2

[0037] like Figure 5 As shown, this embodiment includes a solid columnar body 6, 8 inclined fins 7 on the columnar body 6, a solid columnar body 8, and 8 inclined fins 9 on the columnar body 8, and the middle elastically connects the columnar and sheet composite Body 10. In this embodiment, the columnar body 6 and 8 inclined fins 7 constitute a cleaning and descaling rubber ball, the columnar body 8 and 8 inclined fins 9 constitute another cleaning and descaling rubber ball, and the two cleaning and descaling rubber balls The columnar and sheet-like composites 10 are connected as a whole by the middle elastic connection, that is to form a double-connected rubber ball for cleaning and descaling in the heat exchange tube. The middle elastic connecting columnar and sheet-like composite body 10 is composed of a columnar body and three sheet-like bodies, wherein the sheet-like bodies are arranged in a T-shape. Image 6 of this embodiment Figure 5 Schematic diagram of the mid-s...

Embodiment 3

[0042] like Figure 7 As shown, this embodiment includes a solid columnar body 11, 8 inclined fins 12 on the columnar body 11, a solid columnar body 13, 8 inclined fins 14 on the columnar body 13, and an elastically connected twisted sheet-shaped body 15 in the middle . In the present embodiment, the columnar body 11 and eight inclined fins 12 constitute a cleaning and descaling rubber ball, the columnar body 13 and eight inclined fins 14 constitute another cleaning and descaling rubber ball, and the two cleaning and descaling rubber balls The twisted sheets 15 are elastically connected in the middle to form a double-connected rubber ball for cleaning and descaling in the heat exchange tube. Figure 8 of this embodiment Figure 7 Schematic diagram of the mid-section structure in . The outer envelope surface of the inclined fin is a cylindrical surface.

[0043] The difference between this embodiment and embodiment 1 is: the intermediate elastic connecting body in embodimen...

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PUM

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Abstract

The invention belongs to the technical field of cleaning and descaling in heat-exchange tubes and particularly provides a pair rubber ball for cleaning and descaling in the heat-exchange tubes. The pair rubber ball comprises two solid rotary bodies, elastic cleaning and descaling fins and a middle elastic connecting body. The elastic cleaning and descaling fins are evenly distributed on the circumference of the two solid rotary bodies, wherein the thickness of the fins is 0.6mm to 2mm, and the ratio between the height and thickness of the fins is 1.25 to 4; the two ends of the middle elastic connecting body are connected with the two solid rotary bodies, wherein the middle elastic connecting body of the pair rubber ball is particularly a cylindrical body, a flaky body or the compound of the cylindrical body and the flaky body, the diameter of the cylindrical middle elastic connecting body is 1/10 to 1/2 the inner diameter of the heat-exchange tubes, and the thickness of the flaky middle elastic connecting body is 1/25 to 1/5 the inner diameter of the heat-exchange tubes; and the error in the density of the solid rotary bodies and the density of the conveyance fluid is not larger than 8%. The invention has the advantages of good cleaning and descaling effects, low possibility of blocking the heat-exchange tubes and long service life.

Description

technical field [0001] The invention relates to a double-connected rubber ball for cleaning and descaling in a heat exchange tube, in particular to a double-connected rubber ball for cleaning and descaling in a heat exchange tube in which two cleaning and descaling rubber balls are integrated through an intermediate elastic connector. Background technique [0002] Shell-and-tube heat exchangers are widely used in electric power, chemical industry, petroleum and other industrial fields. Most of the heat exchangers have fouling and scaling during operation, especially the condensers cooled by circulating water. , water cooler, etc. The fouling and scaling of the heat exchanger will reduce the heat transfer coefficient of the equipment, increase the energy consumption, and even cause the equipment to fail to operate normally due to pipe blockage; scaling will also form corrosion under the scale and shorten the service life of the equipment. At present, there are online and off...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/057
CPCB08B9/0554F28G1/12
Inventor 孟继安
Owner TSINGHUA UNIV
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