Mounting method of household metering heating pipeline and pre-buried hot water pipe assembly parts

Abstract

The invention discloses a mounting method of a household metering heating pipeline, which adopts two-pipe ring reversed return system. The invention is characterized in that the heating pipelines are composed of a fixed heating pipeline and a standby heating pipeline; the installation of a vertical branched pipe is concealed and a special pre-buried hot water pipe assembly is adopted during the concealed installation, meanwhile a pollution discharge total riser is arranged in tube well, pollution discharge valves are all installed on a supply and return water main pipe of a buried pipe for each household, two rows of pollution valves are communicated by threeway, then are communicated to the pollution discharge total riser in the tube well. By using the mounting method of the invention, the cross frequency and time of heating pipeline mounting and civil engineering construction are reduced, the work efficiency and quality of the heating pipeline mounting and the civil engineering construction are improved. Meanwhile the on-site fusion welding joints are reduced, the washing and pollution discharge of the household metering heating pipeline are facilitated, the cleaning of the household metering heating pipeline is ensured, the work condition of the household metering heat meter is improved, and thus the service life of the heat meter is prolonged by using the mounting method of the invention.

Description

technical field [0001] The invention relates to an installation method of household metering heating pipelines and a special pre-embedded hot water pipe assembly. Background technique [0002] In order to save energy, household metering should be adopted in the central heating design of commercial buildings. But in fact, household metering is difficult to promote. An important technical reason why household metering is difficult to promote is that the service life of heat meters is short, and the cleanliness of water in the heating system is difficult to guarantee. The existing household metering heating pipelines are all welded together. Except for the detachable radiator, other pipelines cannot be disassembled and cleaned. However, it is difficult to ensure the cleanliness of the pipelines by flushing the entire system, resulting in Granular dirt is not easy to discharge. After being heated by the hot water in the heating system, these granular dirt will pollute the water...

AI Technical Summary

Problems solved by technology

[0004] The water intake of the last group of radiators in the single-pipe series indoor system comes from the return water of the previous group of radiators, which will cause the following problems: except for the water in the last group of radiators that can be drained, the other radiators The water stored in the radiator cannot be completely drained. If the pressure is tested in winter and the antifreeze is not done well, except for the last group of radiators, other radiators will be damaged by freezing, and the dirt with a high density in the buried pipe cannot be discharged, that is, sand Dirt such as particles and metal welding slag cannot be discharged

The disadvantage of this system is that it uses less than twice as many buried pipes as the single-pipe series system, and the cost is slightly higher than that of the single-pipe series system. However, this system solves the problems in the first two systems and is suitable for The system form of buried pipe heating

[0009] After the existing commercial housing is handed over, many owners want to remove the exposed heating pipes and radiators, reinstall the hidden pipes, and choose high-end radiators with beautiful appearance. Many owners also want to change the position of the radiators. This shows that the existing The design and installation method of the heating pipeline is no longer suitable for the pursuit of individualized requirements of the fast-growing Chinese people, resulting in a waste of limited resources and labor

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