Composite insulating barrier专利检索-电击穿绝缘专利检索查询-专利查询网

Composite insulating barrier

阅读：370发布：2021-09-01

专利汇可以提供Composite insulating barrier专利检索，专利查询，专利分析的服务。并且A composite insulating barrier adapted for exposure to conductive fluid at high temperature and pressure with high unidirectional voltage stress across the barrier is formed of a rigid resinous insulating material such as glass filled epoxy, subject to wetting and ion migration. To prevent thermal degradation and electrical breakdown the epoxy is provided with at least one layer of fluid-impervious insulating material such as ''''Teflon,'''' having a less negative or a positive temperature coefficient of resistance.，下面是Composite insulating barrier专利的具体信息内容。

权利要求

1. IN COMBINATION WITH TWO BODIES OF ELECTRICALLY CONDUCTIVE FLUID HAVING A HIGH UNDIRECTIONAL POTENTIAL DIFFERENCE THEREBETWEEN, SAID FLUIDS BEING EXPOSED TO HIGH TEMPERATURE AND HIGH DIFFERENTIAL PRESSURE CONDITIONS, A COMPOSITE INSULATING BARRIER INTERPOSED BETWEEN AND IN CONTACT WITH SAID FLUIDS, SAID BARRIER COMPRISING A FIRST LAYER OF INSULATING MATERIAL HAVING A HIGHLY NEGATIVE RESISTANCE-TEMPERATURE COEFFICIENT AND A SECOND LAYER OF INSULATING MATERIAL HAVING A SUBSTANTIALLY LESS NEGATIVE RESISTANCE-TEMPERATURE COEFFICIENT, AT LEAST ONE SAID INSULATING LAYER HAVING SUFFICIENT MECHANICAL STRENGTH TO WITHSTAND SAID DIFFERENTIAL PRESSURE, WHEREBY INCREASING TEMPERATURE PRO-

2. The combination of claim 1 wherein said first layer is formed of a rigid insulating material.

3. The combination of claim 1 wherein said first layer comprises a glass fiber-filled cast organic resin.

4. The combination of claim 1 wherein said first layer comprises cast epoxy and said second layer is formed of polytetrafluoroethylene.

5. The combination of claim 4 wherein said first layer comprises a cast body of glass fiber-filled epoxy.

6. In combination, a composite insulating conduit interposed between two bodies of electrically conductive fluid at different pressures, means maintaining said bodies of fluid at different unidirectional potentials sufficient to impose a high intensity electrostatic field between inner and outer surfaces of said conduit, said conduit comprising a first layer of rigid insulating material having a predetermined temperature coefficient of resistance, said first insulating layer being sufficiently rigid to withstand the pressure differential between said fluid bodies, and a second layer of insulating material having a significantly different temperature coefficient of resistance, at least one of said materials having a negative temperature coefficient of resistance and the material having the most negative coefficient being subject to electrical breakdown under the ambient conditions of temperature, pressure and electrical stress.

说明书全文

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