Integral insulating joint

An insulating joint and integral technology, applied in the direction of pipes/pipe joints/pipes, passing components, mechanical equipment, etc., can solve the problems of difficult sealing effect of insulating gasket 4, difficult sealing effect of insulating gasket 4, easy damage, etc. , to achieve the effect of excellent insulation and sealing effect
CN101994886AInactive Publication Date: 2011-03-30CHANGSHU NO 2 CHEM ENG EQUIP PLANT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGSHU NO 2 CHEM ENG EQUIP PLANT
Publication Date
2011-03-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an integral insulating joint belonging to pipeline fittings and comprising an upper conduit, a lower conduit, a casing, an insulating device, an insulating gasket and a sealing pad, wherein a lower conduit flange is arranged on the lower conduit; and an upper conduit flange is arranged on the upper conduit. The integral insulating joint is characterized in that a first sealing ring groove and a second sealing ring groove are arranged on the surface on one side of the lower conduit flange; a first sealing ring and a second sealing ring are embedded into the first sealing ring groove and the second sealing ring groove; a third sealing ring groove and a fourth sealing ring groove are arranged on the surface at the other side of the upper conduit flange; a third sealing ring and a fourth sealing ring are embedded into the third sealing ring groove and the fourth sealing ring groove; the insulating device comprises a first insulated filling layer, a second insulated filling layer and a sealing washer; the first insulated filling layer is positioned between the external circular surface of the lower conduit flange and the inner wall of the casing; the second insulated filling layer is positioned between the outer wall of the lower conduit and the first surface of a step of the casing; and the sealing washer is arranged between the second inner surface of the step and the lower conduit flange. The invention has the advantages of excellent insulating performance and no phenomena of damaging to the insulating and the sealing.
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Description

technical field

[0001] The invention belongs to the technical field of pipeline fittings, and in particular relates to an insulating joint, which is applied to gas transmission and distribution pipelines and oil transmission pipelines to implement insulation and isolation between pipelines. Background technique

[0002] In view of the shortcomings of large volume, heavy weight, weak pressure bearing capacity, poor sealing and insulation performance in gas transmission and distribution pipelines, gas pressure regulating stations, oil transmission pipelines and pressure regulating stations in the past, the use of flange structures as insulating joints , so there are many insulating joints used in the above-mentioned occasions in the Chinese patent literature.

[0003] The utility model patent authorization announcement number CN2375848Y discloses an integral type insulating joint, and its structure consists of image 3 As shown, the downcomer 1 is inserted into the insulating ...

Claims

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