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我省龙溪河回龙寨引水式电站最大水头22.0米,引用流量106米~3/秒。钢筋混凝土高压管道长28.45米,直径2.93米(图1、2)。高压管道与水轮机蜗壳衔接处设永久缝、缝内曾用铜片沥青油毛毡止水(见图2)。 电站运行后不久便出现漏水。由于永久缝通过水泵房,使得房内大量积水,影响到水轮机层安全操作,多年未找到合适的处理方法。一度用沥青麻丝填字,但未奏效。1980年对1~#机水泵房伸缩缝处又采用环氧砂浆
Longxi River in our province back to Longzhai diversion plant head maximum 22.0 meters, quoted flow 106 meters ~ 3 / second. Reinforced high-pressure pipe length 28.45 meters, diameter of 2.93 meters (Figure 1,2). High-pressure pipeline and turbine volute at the junction of permanent seams, the seams used copper bitumen oil felt water stop (see Figure 2). Leakage occurred shortly after the operation of the plant. Due to permanent sewing through the pump house, making a lot of water inside the house, affecting the safe operation of the turbine layer, for many years did not find a suitable treatment. Once filled with asphalt linen, but did not work. 1980 1 ~ # pump room expansion joints and the use of epoxy mortar