Cold and hot water positive and negative water vapor interaction pulse washing and drying device and method

Abstract

The invention provides a cold and hot water positive and negative water vapor interaction pulse washing and drying device and method. A water supplementing device is connected with a water tank of a water circulation system, a gas supplementing device is connected with a water circulation pipeline of the water circulation system, a three-position four-way reversing electric valve of a coil bar washing loop is located in the water circulation system and connected with the water circulation system, and a vacuum device is connected with the coil bar washing loop. A PLC control system controls the water supplementing device to supplement water to the water circulation system, the gas supplementing device supplements gas to the water circulation system or dries a coil bar water branch after washing, a formed water-gas mixture enters the coil bar washing loop to wash and descale the coil bar water branch, and the vacuum device extracts water, gas and impurities. The problems that the coil bar water branch of an internal water cooling generator is not thoroughly washed, the blockage removal capacity is insufficient, and the inner wall of a coil bar is likely to be oxidized are solved, and the cold and hot water positive and negative water vapor interaction pulse washing and drying device and method have the characteristics of being simple in structure, adjustable in water-gas pulse ratio, capable of achieving self-circulation and direction-changing washing, capable of saving energy, thorough in washing, beneficial to reduction of oxide in the washing process and easy and convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of pipeline cleaning, and relates to a cold and hot water positive and negative water-gas alternating pulse cleaning and drying device and method. Background technique [0002] At present, during the long-term operation of the water-cooled generator bar water branch, due to corrosion, oxidation and impurities in the water, fouling will occur on the corners and bends of the cooling element, and the cross-sectional area of ​​the hollow copper wire is small (usually 11mm*2mm), it is easy to cause pipeline blockage, which will cause local overheating of the generator, and long-term operation will lead to insulation failure and even generator failure. If there is a generator failure during the flood season, it will bring huge economic losses. [0003] Because of its narrow water channel, the wire rod water branch is difficult to clean by traditional methods. In thermal power generating units, it is usually used...

AI Technical Summary

Problems solved by technology

Other industries also have devices that use water-air pulses to clean waterways, but they do not have the functions of self-circulation and direction reversal, and there are problems of large water consumption and insufficient dredging capacity

It also does not have the function of adjusting the ratio of water and air pulses, and lacks flexibility in matching and cleaning different pipelines

In addition, other water-gas pulse devices use a mixture of ordinary water and compressed air. The impurities in the water and the oxygen in the air will oxidize the inner wall of the generator wire rod, and the oxide will be harmful to the pipeline.

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