Cleaning ball with bristles on surface

Abstract

The invention provides a cleaning ball with bristles on the surface. The cleaning ball comprises a ball body and multiple bristle bundles on the ball body; multiple bristle planting holes allowing thebristle bundles to be planted are evenly formed in the surface of the ball body, and each bristle bundle is composed of multiple bristles. Compared with the prior art, the cleaning ball with the bristles on the surface wipe the dirt on a heat exchange pipe through the bristles, the wear resistance of the bristles is good, the service life is long, the water flow pressure difference pushes the cleaning ball to do spiral motion along the inner thread of the efficient heat exchange pipe, due to the fact that the bristle bundles are enough flexible, during heat exchange pipe cleaning, great deforming is achieved, and the gaps between the inner threads of the efficient heat exchange pipe are cleaned, so that the 360-degree dead-corner-free cleaning of the efficient heat exchange pipe is achieved; and the cleaning ball has generality, and can be suitable for efficient heat exchange pipes selected by different shell-and-tube cooler manufacturers. When a variable frequency control unit is adopted for running, the cleaning ball can still achieve effective cleaning of the heat exchange pipe under the extremely low flow rate.

Description

technical field [0001] The invention discloses a cleaning ball with bristles on the surface, which is suitable for heat exchange tubes in shell-and-tube condensers, can effectively remove dirt on the walls of the heat exchange tubes, and always maintain the high-efficiency heat exchange performance of the heat exchange tubes. Background technique [0002] Most of the heat exchange tubes used before the 1970s were ordinary light tubes, and the inner and outer surfaces of the tubes were smooth. Later, with the development of enhanced heat transfer technology, some industrial heat exchangers, especially those used for air conditioning and refrigeration, In the heat exchanger, there are heat exchange tubes with internal threads in the tube, which greatly enhances the heat exchange effect. At present, the shell-and-tube heat exchangers using high-efficiency heat exchange tubes on the market are widely used in the fields of electric power, petrochemical industry, air conditioning ...

AI Technical Summary

Problems solved by technology

At present, the shell-and-tube heat exchangers using high-efficiency heat exchange tubes on the market are widely used in the fields of electric power, petrochemical industry, air conditioning and refrigeration. , evaporation and concentration, etc., resulting in unstable water quality, generating and accumulating a large amount of scale, dirt, and microorganisms, forming dirt on the surface of the heat exchange tube of the condenser, resulting in fouling thermal resistance, and reducing the heat transfer efficiency of the condenser

Rubber ball cleaning technology is widely used in the field of heat exchangers, but the rubber balls currently used have the following problems: 1. It is difficult to accurately control the diameter and specific gravity, the diameter changes greatly during use, and it is easy to wear, and it is easy to overvulcanize and age and embrittlement, the rubber ball is greatly affected by water quality, and its service life is low, resulting in frequent replacement, which affects the normal operation of the rubber ball cleaning system; 2. Due to the limitation of the internal thread structure of the high-efficiency heat exchange tube, it is difficult for the rubber ball The gaps between the tubes are cleaned, resulting in uneven cleaning of the heat exchange tubes, low heat transfer efficiency of the condenser, and poor cleaning effect; 3. The internal dimensions of the high-efficiency heat exchange tubes selected by different shell-and-tube condenser manufacturers are very different. Rubber balls of the same specification cannot be used universally, and corresponding balls must be customized for the heat exchange tubes selected by shell-and-tube condenser manufacturers; The flow velocity in the heat exchange tube varies from 0.6m / s to 3.6m / s. The rubber ball cannot pass through the heat exchange tube at a low flow rate, and may stay in the heat exchange tube and cannot be cleaned normally

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