Large-flow PP-R pipeline system

Abstract

The invention relates to the field of drinking water pipeline systems and discloses a large-flow PP-R pipeline system comprising a main water pipe and a plurality of branch pipes. The multiple branchpipes all communicate with the main water pipe. A sluice valve is installed on the main water pipe. The main water pipe and the multiple branch pipes are each provided with an elbow. The main water pipe, the multiple branch pipes, a sluice valve body and the elbows are all made of the PP-R material. The roughness coefficient of the inner walls of the main water pipe, the multiple branch pipes, thesluice valve body and the elbows of the PP-R material is 0.05-0.1 [mu]m. Compared with the prior art, through valve replacement, the materials of all the parts are replaced with the PP-R material, the roughness coefficient of the inner walls of the finished products made of the PP-R material is lowered to 0.05-0.1 [mu]m, when water flows in the pipeline system, resistance to water can be loweredvery well, thus the water passing amount is increased greatly, and the water passing amount can be increased by 20%-25%.

Description

technical field [0001] The invention relates to the field of drinking water pipeline systems, in particular to a large-flow PP-R pipeline system. Background technique [0002] As a cost-effective product, PP-R pipes have become the mainstream products of cold and hot water supply pipe systems in the field of horizontal branch pipes in buildings. The PP-R pipeline mainly adopts hot-melt connection, realizes the diversion of the waterway with a 90° elbow, realizes the diversion of the pipeline branch with the positive tee, realizes the exchange of cold and hot water with the bridge bend, and uses the stop valve or ball valve as the main switch. PP- R pipes and several accessories are welded in series to form a hot and cold water piping system. During the water delivery process of 90° elbow, positive tee, and bridge bend fittings, the water head hits and flows back, resulting in high head loss, and the stop valve fittings are all designed with half flux, which greatly weakens ...

AI Technical Summary

Problems solved by technology

However, with the continuous improvement of living standards, the number of customers in large flats, bungalows and villas has increased, and the number of water rooms and water points has increased significantly. When all water points use water at the same time, the water volume often weakens or even cuts off, which makes the traditional PP-R pipeline system It cannot provide better water comfort; at the same time, high-rise commercial buildings continue to emerge, although there are multiple levels of pressurization, the problem of insufficient water pressure in high-rise buildings always exists, which also leads to a decrease in water comfort

The series-type pipeline design method will cause greater hydraulic loss when the pipeline is extended, and there is also the maintenance drawback of "a little water leaks, and the whole house will stop water"

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