Application of bimetal composite pipe connection m

2022-07-22
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As we all know, water supply needs to be applied to pipes. There are many kinds of materials for pipes. Today's Xiaobian will introduce you to bimetal composite pipes. It is a new type of composite water supply pipe, and also a more ideal pipeline upgrading product

bimetallic composite pipe follows the traditional and mature installation method and process of galvanized steel pipe, so it is convenient, reliable, hygienic and safe in use. According to the different material selection between the base pipe and the inner liner pipe, as well as the improvement of manufacturing technology, its scope of application is more and more extensive, and the economic, environmental and social benefits are also more obvious. So, what are the applications of bimetallic composite pipes in? Let's take a look at

[working principle of bimetallic composite pipe]

basic principle of bimetallic composite steel pipe: the outer base pipe is responsible for pressure bearing and rigid support of the pipe, and the inner liner pipe is responsible for corrosion resistance

carbon steel pipes with different diameters and wall thickness can be selected for the outer base pipe according to the flow and pressure requirements of the transmission medium. Hot dip galvanized steel pipe, straight seam welded pipe, spiral pipe, seamless steel pipe for low and medium pressure fluid transmission, high pressure boiler, seamless steel pipe for petroleum cracking, pipeline pipe, etc. The diameter can be from φ 20-φ 1020mm, wall thickness can range from 2.5-50mm

different corrosion-resistant alloys can be selected for the inner liner according to the chemical composition of the transmission medium. It can be austenitic stainless steel 304, 304L, 316, 316L, copper based alloy, nickel based alloy, Hastelloy, titanium, titanium alloy, duplex stainless steel and other new high corrosion resistant alloy materials. The wall thickness of the inner liner can be 0.3-4mm according to the requirements of service life and welding process

[application field of bimetallic composite pipe]

1. Civil field:

cold and hot water pipes, direct drinking water pipes, heating, solar energy, ground source heat pump; Water supply pipes and distribution mains of civil buildings; Air conditioning circulating pipe, water supply pipe of refined decoration high-end commercial housing, etc

2. Industrial field:

oil and gas gathering and transmission pipelines, oil and gas well casings, sewage reinjection pipelines; Chemical heat exchanger tube bundle; Electric desalted water, desulfurization pipeline, etc. Metallurgy, seawater desalination, pharmaceutical and chemical industry, sewage treatment, new energy, food processing and other industries

[bimetallic connection method]

most of the outer base pipes are galvanized pipes, and the mature connection method of galvanized pipes is followed:

1. Threaded connection (commonly known as screw connection), which is suitable for dn15-dn100 and implements gb7306-2 and gb3287-1982 standards

2. Groove clamp connection, applicable to above DN100, in accordance with cj/t156 standard

3. Flange connection, depending on the situation, is generally used above DN100. Flanges, etc. are customized by the manufacturer, and special silicone layer is equipped at the connection

4. Welding connection is adopted according to the actual working conditions, and yb/t5092-2005 and jb/t4747-2002 standards are implemented. Generally, three-layer welding is adopted, first argon arc welding is used to seal the bottom, then welding the transition layer, and finally manual arc welding is used to fill the cover

conclusion: the above introduces the application fields of bimetallic composite pipes, hoping to help you. For more relevant knowledge, please continue to pay attention to the information platform. More wonderful content will be presented for you in the follow-up

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