| 摘要 |
PURPOSE: A drain system with an air pressure tank for water hammer prevention for a catch basin is provided to prevent the lowering of drain capacity due to attachment of foreign materials, since foreign materials, which flow therein, are crushed into small particles. CONSTITUTION: A drain system with an air pressure tank for water hammer prevention for a catch basin comprises a drainpipe(2), a drain pump(3), a filter(4), a shut-off valve(5), a check valve for backflow prevention(6), an air pressure tank(7) for water hammer prevention, and a check valve(8). The drainpipe guides the water stored in a catch basin(30) to a sewer pipe. The drain pump is installed at the end tip of the drainpipe inserted to the inside of the catch basin. The filter is installed at the intake end of the drain pump. The filter has multiple filter holes(4a) on the outer circumference thereof. The drainpipe is installed in the drainpipe to open and close the flow of the water in the drainpipe. The check valve for backflow prevention is installed in the drainpipe and prevents the backflow of water in the drainpipe. The air pressure tank for water hammer prevention compresses and distends air inside the drainpipe. The check valve is installed on one side of the air pressure tank for water hammer prevention. |
