Fluid composite pipe
A composite pipe and fluid technology, applied in the direction of pipeline protection, pipe/pipe joint/fitting, pipeline damage/abrasion prevention, etc., can solve the problems of low service life of pipeline, easy damage and damage of bellows, etc., to reduce maintenance time, The effect of reducing production cost and extending the service life
Inactive Publication Date: 2006-01-18
钱丹浩
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Problems solved by technology
[0002] Using metal bellows as the conveying element of liquid and gas has been widely used in engineering technology and daily life. It has flexible connection methods, but in some specific use environments, such as equipment in metallurgical and petrochemical enterprises In general, because the pipe wall of the general metal bellows is thin, it is easy to be affected by acid and alkali corrosion and harsh environment, so that the bellows are easy to be damaged, especially it cannot adapt to the requirements of the temperature change of the use environment, so it is used as a composite pipe with a protective pipe However, there is a pressure difference between the outer protective tube and the bellows and inside the bellows, which may easily cause distortion and damage of the bellows, and the service life of the pipeline is very low, and even cause production accidents, affecting production and economic benefits
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[0009] Depend on figure 1 It can be seen that the fluid composite pipe of the present invention includes a stainless steel metal bellows 1 , a metal protection pipe 2 , a metal connecting pipe 3 and a metal pipe joint 5 . The two ends of the stainless steel bellows 1 are sealed and welded to one end of the metal connecting pipe 3 respectively, and a metal protection tube 2 is placed outside the stainless steel bellows 1 to protect the stainless steel bellows 1 from being affected by acid and alkali corrosion and harsh environments, and damage the bellows; metal The other end of the connection pipe 3 is sealed and welded with the two ends of the metal protection pipe 2 respectively; the two ends of the metal protection pipe 2 are connected with flange pipe joints 5, which are convenient for connecting with other parts, and this part of the structure is the prior art. The feature of the present invention is that the metal connection pipe 3 has a small hole 4 on the pipe wall, wh...
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The composite fluid pipe is used for conveying liquid and gas. The composite fluid pipe has a corrugated metal pipe and one protecting metal pipe around the corrugated metal pipe, and the two ends of the corrugated metal pipe are separately assembled to and fixed on the two ends of the protecting metal pipe hermetically via connecting pipes, with pipe unions being provided to two ends of the protecting metal pipe. Compared with corrugated metal pipe without protecting metal pipe, the composite fluid pipe has greatly prolonged service life and less maintenance time, is suitable especially for metallurgical, petrochemical and other industries.
Description
technical field [0001] The invention relates to a fluid composite pipe for conveying liquid and gas. Background technique [0002] Using metal bellows as the conveying element of liquid and gas has been widely used in engineering technology and daily life. It has flexible connection methods, but in some specific use environments, such as equipment in metallurgical and petrochemical enterprises In general, because the pipe wall of the general metal bellows is thin, it is easy to be affected by acid and alkali corrosion and harsh environment, so that the bellows are easy to be damaged, especially it cannot adapt to the requirements of the temperature change of the use environment, so it is used as a composite pipe with a protective pipe However, there is a pressure difference between the outer protective tube and the bellows and inside the bellows, which may easily cause distortion and damage of the bellows, and the service life of the pipeline is very low, and even cause prod...
Claims
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IPC IPC(8): F16L57/00F16L23/02
Inventor 钱丹浩
Owner 钱丹浩