Perforated aluminum-plastic composite pressure pipe
Patent Information
- Authority / Receiving Office
- CN ยท China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- RONGCHENG PIPE IND
- Publication Date
- 2019-07-26
- Estimated Expiration
- Not applicable ยท inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the technical field of pressure pipes, in particular to a perforated aluminum-plastic composite pressure pipe. Background technique
[0002] The water flow guiding technology of the penstock first originated from the fact that when the water flow drives the waterwheel, the rotating wheel generates energy and uses this energy to grind the grain. The earliest penstock is not in the form of a steel pipe, but in the form of a long channel. Therefore, the term penstock was first called pressure pipe. Historically, the channel form was the most commonly used. At that time, the pressure pipe would be connected with the existing waterway, and when the water gate at the water source was fully opened, Water can flow freely into the penstock, but when the sluice gate is closed, the flow of water is restricted and cannot flow into the penstock. In addition, additional fences or filters are usually installed at the inlet of the penstock to ...