Flange connecting cabin penetration pipe fitting

Abstract

The invention relates to the technical field of ships and warships, in particular to a flange connecting cabin penetration pipe fitting. The flange connecting cabin penetration pipe fitting comprises a fixing flange, a connecting sleeve, a sleeve, a sealing gasket, a screwing-in flange and insulation cylinders, wherein first connecting holes are formed in the fixing flange; the fixing flange is fixedly connected with one end of the connecting sleeve; a connecting part of the fixing flange and the connecting sleeve is sealed. An insulation layer is arranged at the inner wall of the connecting sleeve; the connecting sleeve passes through the sleeve; the connecting sleeve is fixedly connected with the sleeve. Second connecting holes are formed in the screwing-in flange; the screwing-in flange is fixed with the other end of the connecting sleeve; the sealing gasket is arranged between an end opening of the connecting sleeve and the screwing-in flange. The insulation cylinders are embedded in the first connecting holes and the second connecting holes. The flange connecting cabin penetration pipe fitting provided by the embodiment has the advantages that the sealing performance of the cabin penetration pipe fitting is good; a galvanic coupling loop formed between the flange cabin fittings and a ship or warship casing can be avoided; the corrosion of the ship or warship casing is prevented; the service life of the ship or warship casing is prolonged.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a flange-connected cabin pipe fitting. Background technique [0002] Ship through-cabin fittings are used in seawater or freshwater environments. The existing flange-connected through-cabin pipe fittings for ships are generally through-cabin pipe fittings with copper bushings, and their structure consists of a body, a screw-in flange and a pipe. The body and flanges are made of steel, the pipes are made of copper, and the body and the pressure body are welded through the bulkhead. When seawater circulates in the pipeline system, a large galvanic couple circuit will be formed between the ship hull and the through-cabin pipe fittings, and the galvanic couple circuit will easily lead to an electrochemical reaction between the ship hull and the through-cabin pipe fittings, corroding the ship. The hull of the ship reduces the service life of the hull of the ship. In addition, the thre...

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention solves the technical problems of the poor sealing reliability of the tank-through tubes in the prior art and the easy formation of a galvanic couple circuit between the ship hull and the tank-through tube by providing a flange-connected tank-through tube, and realizes The technical effect of improving the sealing performance of the tank fittings and prolonging the service life of the ship hull

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