Washing descaling ball with mesh surface

A mesh and surface technology, applied in the field of cleaning and descaling balls, can solve problems such as complicated operation of the rubber ball cleaning system, increased energy consumption, and shortened service life of equipment, and achieve excellent cleaning and descaling effects, ball collection rate and operation The effect of high cycle rate

Active Publication Date: 2015-04-15
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fouling will reduce the heat transfer coefficient of the heat exchanger, increase energy consumption, and even cause the equipment to fail to operate normally due to pipe blockage; scaling will also form corrosion under the scale, shortening the service life of the equipment
Rubber ball cleaning technology is widely used in power plant condensers. However, the rubber balls currently used are sponge balls. The diameter and specific gravity of the rubber balls are difficult to control accurately. , dirt and microorganisms, etc., causing problems such as low ball collection rate and low circulation rate, and even blockage of heat exchange tubes. The cleaning effect of rubber balls is poor, and the service life of rubber balls is short. Generally, it needs to be replaced in 2-3 weeks. Rubber balls make the operation of the rubber ball cleaning system more complicated, and also affect the normal operation of the rubber ball cleaning system to a certain extent

Method used

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  • Washing descaling ball with mesh surface
  • Washing descaling ball with mesh surface
  • Washing descaling ball with mesh surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] figure 1 It is a schematic diagram of a three-dimensional structure of a cleaning and descaling ball with a mesh surface layer in Example 1 of the present invention, figure 2 It is a schematic diagram of a three-dimensional partial cross-sectional structure of a cleaning and descaling ball with a mesh surface layer according to Embodiment 1 of the present invention, image 3 It is a schematic diagram of the three-dimensional structure of the inner ball of Example 1 of the present invention, Figure 4 It is a schematic diagram of the three-dimensional structure of the mesh surface layer of Example 1 of the present invention.

[0042] exist Figure 1-4Among them, a cleaning and descaling ball with a mesh surface layer includes an inner ball 1 and a mesh surface layer 2 located outside the inner ball 1 and connected with the inner ball 1 as a whole. In this embodiment, the inner ball 1 is a solid sphere, and the mesh surface layer 2 is a spherical shell with holes insi...

example 1

[0055] Figure 7 It is a schematic diagram of a three-dimensional structure of a cleaning and descaling ball with a mesh surface layer in Modification 1 of Embodiment 1 of the present invention, Figure 8 It is a schematic diagram of a three-dimensional partial cross-sectional structure of a cleaning and descaling ball with a mesh surface layer in Modification 1 of Embodiment 1 of the present invention.

[0056] exist Figure 7 and Figure 8 Among them, a cleaning and descaling ball with a mesh surface layer includes an inner ball 1 and a mesh surface layer 2 located outside the inner ball 1 and connected with the inner ball 1 as a whole. In Modification 1 of Embodiment 1, the inner ball 1 is a perforated sphere 12 , and the perforated sphere 12 has an inner ball hole 121 opened therein. The mesh surface layer 2 is a spherical shell with holes inside and outside. The outside of the inner ball 1 is connected to the inside of the mesh surface layer 2 as a whole, and the outer...

Deformed example 2

[0060] Figure 9 It is a schematic diagram of a three-dimensional partial cross-sectional structure of a cleaning and descaling ball with a mesh surface layer according to Modification 2 of Embodiment 1 of the present invention. exist Figure 7 Among them, a cleaning and descaling ball with a mesh surface layer includes an inner ball 1 and a mesh surface layer 2 located outside the inner ball 1 and connected with the inner ball 1 as a whole. The inner ball 1 is an inner composite ball 13, and the inner composite ball 13 includes an inner composite ball outer layer 131, an inner composite ball middle layer 132 and an inner composite ball inner layer 133, wherein the material of the inner composite ball outer layer 131 is the same as that of the inner composite ball outer layer 131. The mesh surface layer 2 is the same, and the inner composite ball middle layer 132 and the inner composite ball inner layer 133 can adopt different materials, such as the inner composite ball middl...

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PUM

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Abstract

A washing descaling ball with a mesh surface belongs to the fields of in-tube washing descaling and heat transfer enhancement. The washing descaling ball is composed of an inner ball and the mesh surface, and an outer surface of the ball is a compact surface. An outer surface of the inner ball and an inner surface of the mesh surface, a plurality of intensive mesh net-shaped meshes are arranged on the mesh surface, and annular or football-shaped frames or circular mesh separation sheets which are mutually crossed are arranged between the meshes. A mesh surface structure with a plurality of holes has good elasticity and dense scratching edges so that the washing descaling ball has excellent washing descaling effects and is not prone to block a tube to be washed. A compact ball outer surface does not absorb water and swell in a using process so that density and size stability of the washing descaling ball can be kept in a long-time using process, a problem that the existing sponge gelatin ball has big changes in the using process to have influences on washing effects is solved, and normal operation in a cold season can be guaranteed. An inner solid structure is not prone to squeeze out from a mesh of a ball screen or block in the mesh of the ball screen, and ball collection rate and operation circulation rate are high.

Description

technical field [0001] The invention relates to a cleaning and descaling ball with a mesh surface layer, which belongs to the field of cleaning and descaling in pipes and strengthening heat transfer. Background technique [0002] Shell-and-tube heat exchangers are widely used in the fields of electric power, petrochemical industry, and air-conditioning and refrigeration. Most of the heat exchangers have fouling and scaling during operation, especially for heat exchangers cooled by cooling water. device etc. Fouling will lead to a decrease in the heat transfer coefficient of the heat exchanger, an increase in energy consumption, and even pipe blockage, which will cause the equipment to fail to operate normally; scaling will also form corrosion under the scale and shorten the service life of the equipment. Rubber ball cleaning technology is widely used in power plant condensers. However, the rubber balls currently used are sponge balls. The diameter and specific gravity of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B9/04
Inventor 孟继安
Owner TSINGHUA UNIV
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