Washing descaling ball with mesh surface

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...

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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

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