Online cleaning device of heat exchanger

Abstract

Disclosed is an online cleaning device of a heat exchanger. The online cleaning device of the heat exchanger comprises the heat exchanger, a ball injector and a rubber ball delivery pump, wherein an inner pipeline of the heat exchanger is of a U structure, the right side of the heat exchanger is provided with a water inlet pipe orifice, the left side of the heat exchanger is provided with a water outlet pipe orifice, the water outlet pipe orifice is connected with the front end of a funneling ball collector through a pipeline, the rear end of the funneling ball collector is provided with a cooling water outlet, an inverted cone ball collection net is arranged in the funneling ball collector, a variable diameter type ball conveyor is arranged at the tail end of the inverted cone ball collection net, the variable diameter type ball conveyor is connected with a ball discharge pipe orifice, the ball discharge pipe orifice of the funneling ball collector is connected with a ball feed pipe orifice of the rapid ball injector through a flange, and a ball collection valve is arranged on the pipeline of the funneling ball collector. The online cleaning device of the heat exchanger can integrate collection and injection of rubber balls, and greatly improves ball collection efficiency. Ball collection efficiency of a common rubber ball cleaning device ranges from 30% to 70%, and ball collection efficiency of the online cleaning device of the heat exchanger reaches 100%. Additionally, the online cleaning device of the heat exchanger achieves a circulation cleaning function, is simple to operate for cleaning the rubber balls, low in cleaning energy consumption and short in cleaning period.

Description

technical field [0001] The invention relates to the technical field of rubber ball cleaning, in particular to an online cleaning device for a heat exchanger. Background technique [0002] The rubber ball cleaning device is the best equipment for effectively cleaning the cooling pipe of the condenser during the operation of the steam turbine unit. The performance of the device directly affects the cleaning degree and heat transfer effect of the steam turbine condenser. The scope of application of this device is quite wide. It is not only suitable for cleaning the steam turbine condenser, but also suitable for petroleum, petrochemical, chemical, and steel units; the cleaning of the cooling tube of the fixed tube-sheet heat exchanger has entered the central air-conditioning market. , the device can be put into use at any time under the condition of continuous operation without reducing the load, and can always keep the cooling pipe in a clean state, prolong the service life of...

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Problems solved by technology

[0003] Rubber balls are an essential element of the on-line cleaning system. The quality of the rubber balls, the amount of the balls, the replenishment cycle and the replacement cycle of the rubber balls all determine the cleaning effect, but the rubber ball cleaning of the ordinary online heat exchanger is only Separate process: Turn the ball net operation handwheel to the "ball collection position", open the rubber ball pump inlet valve, start the rubber ball pump, open the ball loading chamber outlet valve, and turn the ball loading chamber switching valve to the "cleaning position" However, the operation process of the whole device is not cyclical, the ball thrower and the ball collector are separated, the function of cyclic cleaning cannot be achieved, the cleaning operation is cumbersome, the energy consumption of operation and cleaning is large, and the cleaning time period is long, so that the heat exchanger or cooling tube inefficiency

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