- by vinux
The water coming out of a purple sand teapot is powerful and always gives people a pleasant feeling, which I personally love. However, many pot friends do not understand it very well. Therefore, it is necessary to talk about the technical analysis of the water coming out of a purple sand teapot:
Three factors determine the benefit of water discharge:
1. Flow rate; 2. Water pressure; 3. Water flow resistance.
The water flow rate is determined by the inner diameter of the finest part of the kettle; the water pressure is firstly determined by the type of vessel, i.e. the difference between the water level in the kettle and the spout (flow head), and secondly it is determined by the ratio of total area of outlet holes (tea filter holes) to spout area; The water flow resistance is determined by the curvature of the stream in the kettle. As for how well water gathers (i.e. how long or short a stream of water can be), it depends on how smooth and fine-grained are walls inside its holes. Therefore, whether a powerful or powerless flow comes out mainly depends on vessel type, followed by craftsmanship.
The main work is to open up the area of tea filter holes. The closer the root of the pot stream is to the bottom of the pot, the straighter the pot stream, the larger the area of tea filter holes, and the appropriate proportion of tea filter holes to pot mouth cross section, then the more powerful water flow from the pot. In common models, stone gourd has a most powerful water flow (not considering defects in manual finishing such as too narrow internal flow). Obviously, models such as Gaojinglan do not have advantages in several aspects.