| 摘要 |
PURPOSE: An apparatus for automatically cleaning a tube of a heat exchanger using a pump is provided to simplify structure of tube near a cleaner inputting pump and an electronic valve. CONSTITUTION: A heat exchanger(2), a fluid inlet pipe(1) connected with an inlet side of the heat exchanger, a fluid circulation pump(14) placed on the fluid inlet pipe, a cleaning body separator(3) connected to an outlet side of the heat exchanger, and a fluid outlet pipe(5) connected with a fluid outlet of the cleaning body separator are connected with each other in series. A cleaning body skimmer(7) is installed between a cleaning body input pipe(9) branched from the fluid inlet pipe on the inlet side of the heat exchanger and a cleaning body recovery pipe(8) connected with a cleaning body outlet of the cleaning body separator to be installed parallel with the heat exchanger through the cleaning body input pipe and the cleaning body recovery pipe. Check valves(23) are installed on the cleaning body input pipe and the cleaning body recovery pipe on both sides of the cleaning body skimmer. A pipe in which only fluid flows by a screen(17) in the cleaning body skimmer is extended from a lower part of the cleaning body skimmer, and is branched into a cleaning body returning fluid inlet pipe(10) connected with the fluid inlet pipe between the heat exchanger and the fluid circulation pipe, and a cleaning body returning fluid recovery pipe(11) connected with the fluid inlet pipe on a suction side of the fluid circulation pipe.
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