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１系统积气的原因①在热水供热系统充水前，系统中存有空气。在系统充水时，空气逐渐被挤到系统的末端和顶部。这时，打开系统顶部放气阀排出空气，水即充至顶部。但系统内的空气不可能完全排出，在系统的某些部位会存有空气。②水中溶有空气。当水逐渐升温时，空气会逐渐...
1 Causes of System Gas Accumulation 1 Before the hot water heating system is filled with water, air is stored in the system. As the system is filled with water, air is gradually pushed onto the ends and top of the system. At this point, open the top of the system air release valve to discharge air, the water is charged to the top. However, the air in the system cannot be completely discharged, and there will be air in some parts of the system. 2 There is air in the water. When the water gradually warms up, the air will gradually...