| 摘要 |
PURPOSE: A circulating system of a small-sized boiler for heating is provided to heat with a small capacity heat carrier and to prevent a noise of a motor pump by flowing in a pump appliance into a heating room and filling liquefied medium in a pump room. CONSTITUTION: A circulating system of a small-sized boiler for heating is installed a heating room of heat carrier(2) of a boiler body(1) and a motor room(3) including a motor pump(6) in a unity. A motor pump(6) comprises a pump appliance(6a) to circulate heat carrier and to be equipped inside of a heating room(2) through a ventilated hole(2c), a motor appliance(6b) to be equipped in a motor room(3), and a rotary shaft(6c) to form a heatproof fin(9d) for intercepting thermal conduction from a heating room(2). And a motor room(3) is full of liquefied medium(cw) for preventing a water leakage of a motor pump(6) and a noise.
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