초록 ▼

The invention is a gas fired water booster comprising a holding tank, a centrifugal pump, an infrared burner enclosed by a woven ceramic fiber sleeve, a primary and a secondary heat exchanger, and a gas/air supply source. Preferably, the tank and the burner are generally annular in shape and the bur

The invention is a gas fired water booster comprising a holding tank, a centrifugal pump, an infrared burner enclosed by a woven ceramic fiber sleeve, a primary and a secondary heat exchanger, and a gas/air supply source. Preferably, the tank and the burner are generally annular in shape and the burner is disposed substantially within the tank. An air/gas mixture is supplied to the burner by a blower and is ignited creating a combustion surface approximately one eighth of an inch above the surface of the woven ceramic fiber sleeve. Water is continuously circulated through the heat exchange system and the burner remains on until a temperature sensor indicates that the water has attained a temperature in the desired sanitizing range. When the booster is turned off the pump continues to pump water through the system for a period of time in order to remove any latent heat from the heat exchange system thereby avoiding vaporization of water left in therein, thus enhancing the life and reliability of the heat exchanger and booster accordingly.

대표청구항 ▼

[ What is claimed is:] [1.] A gas fired booster for heating water for use by a downstream user comprising:a water holding tank having an inlet and an outlet;a water supply for supplying water to be heated for use by a downstream user;a gas fired infrared burner at least partially surrounded by said

[ What is claimed is:] [1.] A gas fired booster for heating water for use by a downstream user comprising:a water holding tank having an inlet and an outlet;a water supply for supplying water to be heated for use by a downstream user;a gas fired infrared burner at least partially surrounded by said holding tank;a blower for introducing air into said infrared burner;a fuel supply for supplying a combustible gaseous mixture to said infrared burner;a heat exchanger having an inlet and an outlet, said heat exchanger being disposed between said burner and said holding tank;a pump for circulating water through said heat exchanger into said holding tank, said holding tank and said heat exchanger configured so that said heat exchanger inlet is in fluid communication with one of said holding tank and said pump and said heat exchanger outlet is in fluid communication with the other of said holding tank and said pump;a recirculation loop between said holding tank and said heat exchanger inlet providing fluid communication between said holding tank and said heat exchanger such that said pump can circulate water between said holding tank and said heat exchanger;and a control operationally coupled to said pump for recirculating water through said heat exchanger following a shutdown of said infrared burner.