Resistance-reducing type online cleaning method based on final cooling tower

Abstract

The invention discloses a resistance-reducing type online cleaning method based on a final cooling tower, and belongs to the field of final cooling towers. An elastic resistance-reducing hole plate is creatively added on an existing partition plate to carry out online self-cleaning on blocked sieve holes, an inflation cylinder is inflated to enable the elastic resistance-reducing hole plate to expand, the expanded elastic resistance-reducing hole plate can control the flow of cooling water passing through the sieve holes, and can also shunt the cooling water to improve the spraying effect; and when the sieve holes in a certain layer of partition plate are blocked, due to the fact that coke oven gas cannot continue to ascend, a large amount of coke oven gas is gathered below the partition plate, then heat below the partition plate is increased, the heat enables a shape memory gas blocking piece to deform and bend, a gas outlet of a gas spraying pipe is opened, the elastic resistance-reducing hole plate is gradually contracted from the expansion state, so that the hole diameter of the sieve holes is increased, blocking objects can easily fall off, meanwhile, gas is sprayed to the sieve holes below, and the cleaning effect is further improved.

Description

technical field [0001] The invention relates to the field of final cooling towers, in particular to a drag-reducing online cleaning method based on final cooling towers. Background technique [0002] my country is the country with the largest coke output in the world. In 2010, the coke output was 380 million tons, accounting for about 60% of the world's total coke output. The amount of coke oven gas produced is huge. How to use it efficiently and rationally is related to environmental protection, comprehensive utilization of resources, and A major issue in energy conservation and emission reduction. Taking China's coke output in 2010 as an example to estimate, in 2010, the associated coke oven gas produced by China's coking industry, except for 40% to 45% of which was used to ensure the temperature of the coke oven, had a total surplus of coke oven gas of 85 billion m3, exceeding The total calorific value of the West-to-East Gas Pipeline Project and the efficient utilization...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the object of the present invention is to provide a drag-reducing online cleaning method based on the final cooling tower, by creatively adding an elastic drag-reducing orifice on the existing partition to clean the clogged screen The hole is self-cleaning online. It expands the elastic drag-reducing orifice by first inflating the air cylinder. The expanded elastic drag-reducing orifice can not only control the flow of cooling water through the screen hole, but also divert the cooling water. In order to improve the effect of showering, when the sieve holes on a certain layer of partitions are clogged, coke oven gas cannot continue to rise, so a large amount of accumulation under this partition will cause the heat below this partition to rise. High, the heat makes the shape memory air baffle deform and bend, and the air outlet of the air injection pipe is opened, so that the gas in the inflatable cylinder will be ejected downward from the air injection pipe, and the elastic resistance reducing orifice will gradually shrink from the expanded state, making the sieve hole The hole diameter becomes larger so that the blockage can fall easily, and at the same time, the gas sprayed downward from the air jet pipe is also sprayed on the screen hole below, which further improves the effect of cleaning the blockage

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