What requirements should be met in the design of pump outlet pipe?
A: anchor blocks must be set at the open pipe turning. The distance between the anchor blocks on the straight section of the exposed pipe should not exceed 100m. Expansion joint shall be set for the pipeline between two anchor blocks, and the expansion joint shall be arranged at the upper end; the type and spacing of pipe buttress shall be confirmed by technical analysis and economic comparison. In addition to the left near the expansion joint, the other buttresses should be arranged with equal spacing. The prestressed reinforced concrete pipe shall be provided with a continuous pipe seat or two buttresses at each section; the clear distance between pipes shall not be less than 0.8m, the bottom of steel pipe shall be 0.6m higher than the air of the pipe slot, the bottom of the prestressed reinforced concrete pipe socket shall be 0.3m higher than the air of the pipe slot; the pipe slot shall be provided with drainage equipment. The slope should be protected. When the longitudinal gradient of the pipe trench is steep, a pedestrian step access road shall be set up, with the width not less than 1.0m; when the pipe diameter is greater than or equal to 1.0m and the pipe is long, an inspection hole shall be set up. The number of inspection holes for each pipeline should not be less than 2; when the pipeline is operated in winter in severe cold area, anti freezing and heat preservation measures can be taken for the pipeline according to the demand.
What requirements should be met in the design of water pump outlet pipe?
Answer: the minimum buried depth of the buried pipe top should be below the maximum frozen soil depth; the continuous cushion should be used for the buried pipe. The angle of masonry cushion seat can be 90o-135o; the clear distance between pipes should not be less than 0.8m; the steel pipes buried in the open should be treated with rust prevention; when the open water has corrosive effect on the steel pipes, anti-corrosion measures should be taken; the top surface of backfill on the buried pipes should be provided with horizontal and vertical drainage ditches; the buried pipes should be provided with inspection holes, and each pipe should not be less than 2..