塑料检查井的结构和特点

The structure and characteristics of the plastic inspection well

1.1自重轻、便于运输、造价低。传统排水检查井的制作材料是砂浆砌筑或钢筋混凝土，而塑料排水检查井的制作材料是高分子树脂，原料的差别就使得塑料排水检查井更加绿色环保，节约资源。由于塑料排水检查井比传统检查井（砖砌和混凝土）自重轻、价格低，因此降低了成本，节约资金。1.2抗腐蚀性好、水密性好、耐久性好。塑料排水检查井的材料能够很好地抵抗酸碱腐蚀，不易发生漏渗问题，能够使用50年以上。当前我国建筑施工中大量使用了塑料排水管材，塑料检查井与塑料管材能够配套施工，在相同的材质下，两者之间的接口采用橡胶密封圈进行柔性连接，极大程度的降低了漏渗率，防止污水对地下水资源的污染。1.3内壁光滑、不易堵塞。借于塑料排水检查井的材料特性，其内壁光滑干净、排水顺畅，不易结下污垢，再加上内壁上有明显的导向槽流结构，可以有效排除污垢和杂物，降低管道堵塞的可能性。相关检测数据表明，塑料排水检查井的内流阻力非常小，摩擦系数低至0.01，较传统的排水检查井相比，有近三倍的污水排放能力。

1.1 light weight, easy transportation, low cost. The material of traditional drainage inspection well is mortar or concrete, and the material of plastic drainage well is polymer resin. The difference of raw material makes the plastic drainage well more environmental protection and resource saving. Because the inspection well of plastic drainage is less heavy and cheaper than the traditional inspection well (brick and concrete), the cost is reduced and the capital is saved. 1.2 good corrosion resistance, good water tightness, good durability. The material of the plastic drainage inspection well can resist acid and alkali corrosion well, and it is not easy to leak out. It can be used for more than 50 years. The current construction of China's extensive use of plastic drainage pipe, plastic pipe and plastic inspection wells to supporting the construction in the same material, the interface between the two by rubber sealing rings for flexible connections, greatly reduces the leakage rate, to prevent sewage pollution to groundwater resources. The 1.3 inner wall is smooth and is not easy to block. By means of the material characteristics of the plastic drainage well, the inner wall is smooth and clean, the drainage is smooth, and the dirt is not easy to form. Moreover, with the obvious guiding groove structure on the inner wall, it can effectively exclude dirt and sundries and reduce the possibility of pipeline blockage. The relevant test data show that the internal resistance of the plastic drainage well is very small, and the friction coefficient is as low as 0.01. Compared with the conventional drainage well, it has nearly three times of sewage discharge capacity.