I now have a batch of ring shaped materials to be cut with a small flame cutting machine, requiring cutting machine on the plate, how to change the order of cutting
Three, floor heating construction sequence and main practice1, clean up the scene, confirmed that the laying of floor heating system within the area of all hidden works completed and acceptance; leveling the ground to do leveling layer. Total plane with cement mortar, rugged and gravel fragments are not allowed. "Leveling floor" practice see "construction ground engineering construction and acceptance regulations". If on the ground, should add moistureproof layer;2, in the heating room wall, column and floor (land) plate intersection position, laying edge angle insulation belt. The laying of benzene board, the thickness is generally 2.5 - 3 cm;3, the laying of aluminum foil paper reflective film;4, the laying of barbed wire, spacing control at 20 cm;5, according to the design requirements of laying ground heating coil, with card nails every 30 to 50cm in the wire network;6, fine stone concrete pouring (fine particle size less than 1.5cm), for the protection of the coil, so as to avoid injury. Fine stone concrete expansive agent should be added to prevent cracking. For hydrostatic test before backfilling, the test pressure is 1.5 times of system work pressure, and not less than 0.6MPa. After 10 minutes, the pressure drop is not more than 0.02MPa, which is qualified. When the test is completed, the concrete shall be filled with pressure and the pipeline shall be removed when filling. Manual compaction, no vibrators. Concrete can be released after pressure;7, cement mortar leveling;8. After the pipe laying is completed, the hydrostatic test is performed again.The test pressure is 1.5 times of the work pressure and not less than 0.6MPa. Pressure should be manually pump, slow step-up, 1 hour voltage regulator, pressure drop is not greater than 0.05MPa qualified;9. After the pipe network is cleaned, the coil pipe is connected with the water collector;10, the upper part of the concrete approach or paving brick or wood flooring floor, specific requirements.
The two decoration for households to create conditions without floor heating radiator, no exposed pipes, which increases the use area of the user, but also saves do heating cover, concealed piping costs; easy to set up windows or short window in the room; can not be influenced by the traditional wall radiator limited set flexible lightweight partition, change the indoor layout.The service life is long, the daily maintenance work is small. Most of the plastic pipes used in floor heating have a service life of about 50 years, much higher than the ordinary welded steel pipe. The buried coil pipe is laid with a whole pipe, and the underground is not provided with an interface, which eliminates the hidden danger of leakage. The pipe is not corrosion and no fouling. The filter is only checked regularly during the operation of the system, and the maintenance cost is low.The need to adapt to the commercialization of housing, improve housing quality and gradeThe heat source can be flexible heating, also can make the household hot water heating stove or other suitable heat source, can be tailored, flexible and convenient. Floor heating is popular in South korea. South Korea's 80% residential heating in this way, over the years the construction process gradually improved, has formed a more mature process system. In China, it has developed in recent years. In Shandong, Dezhou, the earliest use of this technology was in 1995, but has not been here for about ten years. Below, I combine Dezhou some residential specific circumstances, common floor type in the heating structure, materials selection, construction technology and construction notes are briefly introduced.
