Central cooler back-washing device for dredger

Abstract

The invention relates to a central cooler back-washing device for a dredger, belonging to the technical field of dredging construction. The central cooler back-washing device for the dredger is characterized by consisting of a seawater pump, valves and pipelines, wherein the outlet of the seawater pump communicates with an outboard through valves and a seawater filter; the outlet of the seawater pump is connected with two central coolers in parallel through pipelines and valves; the seawater outlets of the two central coolers are connected with the inlet pipeline of the seawater pump and the outboard through valves; pipelines between the seawater inlets of the two central coolers and the valves are connected with back-washing check valves; and the back-washing check valves communicate with the outboard through pipelines and sea valves. The central cooler back-washing device has the advantages that the structure is simple; cost is low; cost performance is excellent; no additional energy is needed; practicability is high; operation is convenient; controllability is good; the central cooler back-washing device is applicable to back-washing of all plate-cooling heat exchangers, especially the dredger during coastal construction; and the like.

Description

technical field [0001] The invention belongs to the technical field of dredging engineering, in particular to a backwashing device for a central cooler of a dredger. Background technique [0002] At present, the construction environment of self-propelled cutter suction dredgers is mostly near coastal ports, with many pollutants and microorganisms. In addition, the disturbance of the soil quality by the reamer during the construction of the ship makes the sea water around the ship more turbid. Under the premise of ensuring the cooling effect of the ship's central cooling device, the cooling effect is often poor due to the dirty filter of the central central cooler, resulting in overheating or even more serious damage to mechanical equipment. In addition, once the central cooler is seriously dirty and blocked, it must be dismantled as a whole, pickled and then reinstalled. Repeated disassembly may easily cause damage to the titanium plate sealing rubber ring, water leakage and...

AI Technical Summary

Problems solved by technology

[0002] At present, the construction environment of self-propelled cutter suction dredgers is mostly near coastal ports, and there are many pollutants and microorganisms. In addition, the disturbance of the soil quality by the reamer during the construction of the ship makes the sea water around the ship more turbid.

Under the premise of ensuring the cooling effect of the ship's central cooling device, the cooling effect is often poor due to the dirty and clogged filter of the central central cooler, resulting in overheating of mechanical equipment and even more serious damage

In addition, once the central cooler is seriously dirty and blocked, it must be disassembled as a whole, pickled and then reinstalled. Repeated disassembly may easily cause damage to the titanium plate sealing rubber ring, water leakage and other series of problems

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