| 摘要 |
PURPOSE:To circulate hot water up to a height position more than a lift of a circulation pump and perform a rapid air removal by a method wherein injector means connecting between a going pipe and a return pipe is arranged in a circulation circuit placed at a lower position than the lift of the circulation pump so as to generate a surface tension in the return pipe in compliance with a diameter of the injector means. CONSTITUTION:A circulation circuit A is provided with a radiator 6' at a place higher than a lift of a circulation pump 5 located at a second floor or a third floor or the like. When the circulation pump 5 is started to operate, a thermal medium in a return pipe 7 is lifted up to a height of a lift H of the circulation pump. Although the ascending of the thermal medium is stopped by a resistance in the air accumulator or the like in the midway position of the return pipe 7 and a part of the thermal medium is branched to the lower part of the return pipe 8 as an injecting action. With this arrangement, the air in the radiator 6' is pulled gradually with a surface tension caused by a diameter of the return pipe 8, mixed with the thermal medium and then flowed down to the return pipe 8. |
