The present invention relates to a water gun for removing a waste heat recovery boiler fin tube attachment for LNG combined cycle power generation. According to the present invention, a water injection pipe is formed to have a rectangular or oval cross section to be inserted between heat exchanger fin tubes and water is injected in multiple directions so that the attachment fixed on a fin tube surface can be effectively separated. The water gun has water supply control means and is provided to remove the attachment that is fixed on the fin tube surface by injecting the water to the heat exchanger fin tube. A hose connection section to which a water supply hose is connected is formed on one side of a water gun body. A water injection unit where a water injection hole is formed in an end portion is provided on the other side. The water injection unit has a body connection portion formed on one side for coupling with the water gun body. On the other side, the water injection pipe integrally formed with the body connection portion is formed to have the rectangular or oval cross section to be inserted between fin tubes. A plurality of the water injection pipes are formed to be parallel to each other. One side of each of the water injection pipes is formed to be connected to the body connection portion. The water injection pipes are formed to communicate with each other from section to section by a communicating unit.;COPYRIGHT KIPO 2014
展开▼
