[특허]In-line measuring device with measuring tube lined internally with polyurethane and method for manufacture thereof

Endress + Hauser Flowtec AG

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특허 상세정보

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In-line measuring device with measuring tube lined internally with polyurethane and method for manufacture thereof

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01F-001/58 G01F-001/56
미국특허분류(USC)	073/861.12
출원번호	UP-0806712 (2007-06-04)
등록번호	US-7523674 (2009-07-01)
우선권정보	DE-10 2006 026 310(2006-06-02); DE-10 2006 026 311(2006-06-02)
발명자 / 주소	Sulzer, Thomas Ruchel, Johannes Stuenzi, Alexander
출원인 / 주소	Endress + Hauser Flowtec AG
대리인 / 주소	Bacon & Thomas, PLLC
인용정보	피인용 횟수 : 2 인용 특허 : 13

초록

The measuring tube of an in-line measuring device is formed by means of a support tube and a liner internally lining the support tube. The liner adheres to the support tube, with interposition of a mediating primer. Both the primer and the liner are composed, at least in part, of polyurethane. Especially, both the polyurethane of the liner and also the polyurethane of the primer are suitable for drinking water applications, so that the in-line measuring device itself is also suited for measuring drinking water.

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What is claimed is: 1. An in-line measuring device for measuring a fluid flowing in a pipeline, comprising: a measuring transducer including a measuring tube joined into the pipeline, said measuring tube serving to convey the fluid to be measured and being formed by means of a support tube as well as by means of a liner internally lining the support tube, wherein: said support tube and said liner adhere to one another with interposition of a mediating primer; and both said liner and said primer are comprised, at least in part, of polyurethane. 2. The in-line measuring device as claimed in claim 1, wherein: the polyurethane of said liner and the polyurethane of said primer are different. 3. The in-line measuring device as claimed in claim 1, wherein: said liner and said primer comprise, at least partially, essentially equal polyurethanes. 4. The in-line measuring device as claimed in claim 1, wherein: both the polyurethane of said liner and also the polyurethane of said primer are suitable for drinking water applications. 5. The in-line measuring device as claimed in claim 1, wherein: both said liner and said primer are comprised of polyurethane suitable for drinking-water applications. 6. The in-line measuring device as claimed in claim 1, wherein: the polyurethane of said liner contains aromatic compounds; and/or aliphatic compounds; and/or ether groups; and/or ester compounds; and the polyurethane of said primer contains aromatic compounds; and/or aliphatic compounds; and/or ether groups; and/or ester compounds ester groups. 7. The in-line measuring device as claimed in claim 1, wherein: the polyurethane of said liner contains cycloaliphatic compounds; and/or aliphatic ether groups; and/or aliphatic ester groups; and/or is manufactured using a catalyst containing metal-organic compounds; and the polyurethane of said primer contains cycloaliphatic compounds; and/or aliphatic ether groups; and/or aliphatic ester groups. 8. The in-line measuring device as claimed in claim 1, wherein: at least the polyurethane of said liner is manufactured using a catalyst containing metal-organic compounds. 9. The in-line measuring device as claimed in claim 8, wherein: metals introduced into said liner with the catalyst and remaining there are chemically and/or physically bonded to carbon chains formed in said liner; and/or the catalyst used at least for manufacture of the polyurethane of said liner contains tin especially organically bonded tin; and/or the catalyst used at least for manufacture of the polyurethane of said liner is essentially free of heavy metals; and/or the catalyst used at least for manufacture of the polyurethane of said liner is essentially free of amines; and/or the polyurethane of the primer is also manufactured using a catalyst containing metal-organic compounds; and/or both said liner and said primer are essentially free of heavy metals; and/or both said liner and said primer are essentially free of amines. 10. The in-line measuring device as claimed in claim 9, wherein: metals introduced into said liner with the catalyst and remaining there are atomically, and/or physically bonded to carbon chains formed in said liner. 11. The in-line measuring device as claimed in claim 8, wherein: the polyurethane of said primer is also manufactured using a catalyst containing metal-organic compounds, and the polyurethane of said liner and said polyurethane of the primer are manufactured using equal catalysts. 12. The in-line measuring device as claimed in claim 8, wherein: the catalyst used at least for manufacture of the polyurethane of said liner contains tin and wherein said liner contains aliphatically bonded tin. 13. The in-line measuring device as claimed in claim 1, wherein: the polyurethane of said liner is manufactured by means of at least one multicomponent system based on isocyanates as well as di-, or more-, valent alcohol; and/or; the polyurethane of said primer is manufactured by means of at least one multicomponent system based on isocyanates as well as di-, or more-, valent alcohol. 14. The in-line measuring device as claimed in claim 13, wherein: the at least one multicomponent system is based on monomeric and/or prepolymeric and/or polymeric isocyanates; and/or the at least one multicomponent system is manufactured using butanediol; and/or the alcohol for the at least one multicomponent system is provided in the form of a prepolymer; and/or the at least one multicomponent system is manufactured using at least one of diisocyanates, hexane diisocyanate (HDI), toluene diisocyanate (TDI) and isophorone diisocyanate (IPDI). 15. The in-line measuring device as claimed in claim 14, wherein: the at least one multicomponent system is manufactured using diphenylmethane diisocyanate (MDI). 16. The in-line measuring device as claimed in claim 13, wherein: the alcohol for the at least one multicomponent system is provided in the form of a prepolymer, and the alcohol comprises a prepolymer based on castor oil. 17. The in-line measuring device as claimed in claim 13, wherein: the isocyanate of at least one of said multicomponent systems is selected from a group consisting of aromatic and aliphatic isocyanates. 18. The in-line measuring device as claimed in claim 17, wherein: the isocyanate of at least one of said multicomponent systems is a diisocyanate. 19. The in-line measuring device as claimed in claim 1, wherein: said support tube is made from metal; and/or said liner has a thickness of less than 8 mm; and/or said primer has a thickness of less than 500 μm; and/or said measuring tube has a nominal diameter less than or equal to 2000 mm; and/or said measuring tube has a nominal diameter greater than or equal to 25 mm. 20. The in-line measuring device as claimed in claim 19, wherein: said liner has a thickness less than 4 mm; and/or said primer has a thickness of less than 300 μm. 21. The in-line measuring device as claimed in claim 1, wherein: the in-line measuring device is a flow measuring device and/or said measuring transducer is selected from a group of measuring transducers consisting of magneto-inductive measuring transducers and acoustic measuring transducer. 22. The in-line measuring device as claimed in claim 1, wherein: said measuring transducer further comprises: a magnetic circuit arrangement arranged at said measuring tube for producing and guiding a magnetic field producing an electric field in the flowing fluid, and measuring electrodes for sensing electric voltages induced in the flowing fluid. 23. The use of an in-line measuring device as claimed in claim 1, for measuring flow rate and/or flow velocity of water, especially drinking water, flowing in a pipeline.

이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 피인용횟수: 2

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특허 상세정보

In-line measuring device with measuring tube lined internally with polyurethane and method for manufacture thereof

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이 특허에 인용된 특허 (13)

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특허 상세정보

In-line measuring device with measuring tube lined internally with polyurethane and method for manufacture thereof

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이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 피인용횟수: 2

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