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为了使机电井口得到保护,更好地发挥机电井效益,黑龙江省安达市水利科技人员,针对当地地广人稀,井房不好管理的实际情况,研究设计了一种椅子型井盖,收到很好效果,从而取代了修建井房。这种井盖适用于机泵常年置于水中的井,如潜水电泵井。也适用于临时在井上架设泵的井,如柴油机离心泵井。它的主要结构是采用红砖、水泥砂浆砌制,然后用水泥砂浆抹面而成。可分为井口部分和配电室部分。井口用6毫米厚钢板,做成直径380毫米大小的园井盖;配电室部分用5号角钢和3毫米厚纲板做门。因其形状象椅子,故起名椅子型井盖。(详见右下图) 椅子型井盖有以下三个特点:
In order to protect the electromechanical wellhead and give full play to the benefit of the electromechanical well, the water conservancy scientific and technological personnel of Anda City, Heilongjiang Province, studied and designed a chair-type manhole cover according to the fact that the locality is sparsely populated and the well room is not well managed. Good effect, which replaced the construction of well room. This cover is suitable for pump wells all year round, such as submersible pump wells. It also applies to wells temporarily installed in the well, such as diesel centrifugal pumps. Its main structure is the use of red brick, cement mortar puzzle, and then plaster surface made of cement mortar. Can be divided into wellhead part and distribution room part. Wellhead with 6 mm thick steel plate, made of 380 mm diameter garden covers; distribution room section with 5 angle and 3 mm thick Gangban door. Because of its shape like a chair, named chair-type covers. (See below right) The chair cover has the following three characteristics: