High temperature compensator

A high-temperature compensator and high-temperature-resistant technology, which is applied to expansion compensation devices for pipelines, pipes/pipe joints/fittings, pipelines to prevent damage/wear, etc., can solve the problem of reducing the service life of the compensator, affecting the compensation performance of the compensator, Sealing ring cannot be replaced and other problems, to achieve the effect of enhancing compensation ability, prolonging service life and shortening pouring length

Inactive Publication Date: 2008-08-20
江苏亿丰机械制造有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the compensator still has the following defects according to its disclosed content: 1. The overlapping part of the two inner liner pipes is equipped with a sealing ring, and there is basically no gap, so that the mutual movement is restricted, which affects the compensation performance of the compensator, espec

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  • High temperature compensator

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Embodiment Construction

[0008] Referring to the accompanying drawings, flange 1, connecting pipe 2, and stainless steel bellows 3 are welded into the main body of the bellows compensator, which is provided with an inner liner 4 welded to the flange, and the inner liner is divided into two sections of equal length. The gap at the opposite end is provided with a telescopic ring composed of a guide tube ring plate 6, a guide tube 7, a sleeve 8, and a sleeve ring plate 9. The guide tube 7 and the sleeve 8 are made of heat-resistant steel 1Cr25Ni20Si2. The gap between the overlapping parts a=10mm, the bellows, the connection pipe and the liner pipe, and the inner cavity of the telescopic ring are filled with aluminum silicate ceramic fiber material 5 wrapped by stainless steel wire mesh, and the inner side of the liner pipe is cast with high-temperature refractory mud 10, refractory The mud inner wall and the guide tube are on the same cylindrical surface, and the two ends of the refractory mud are closely...

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Abstract

The invention discloses a high temperature compensator, belonging to the corrugated metal pipe field. The mainbody of the high temperature compensator is welded by a flange, a connecting pipe and a corrugated pipe. The high temperature compensator is internally provided with a lining pipe and the middle section gap of the lining pipe is provided with a telescopic ring which is composed of a guide cylinder, a guide cylinder annular plate, a sleeve and a sleeve annular plate. The guide cylinder and the sleeve are made of antioxidation and heat resistant steel material; the clearance of the overlapping part between the guide cylinder and the sleeve is ranging from 5mm to 20mm; a high temperature resistance and heat insulation material is filled in a chamber at the external side of the lining pipe and a chamber of the telescopic ring; the internal side of the lining pipe is poured by high temperature fireclay. The high temperature compensator can resist high temperature, has a plurality of larger displacement compensation quantity, long service life, is especially suitable for the displacement compensation of blast furnace air supply devices used for ironmaking in a steel plant and other high temperature medium delivery sites, and makes obvious progress compared with the existing compensators.

Description

technical field [0001] The invention relates to a metal bellows compensator, in particular to a high-temperature compensator used in an ironmaking blast furnace air supply device of a steel plant or other high-temperature medium conveying devices. Background technique [0002] Metal bellows compensators are widely used in important industries such as electric power, metallurgy, chemical industry, construction, food, pharmaceuticals, etc. to compensate the axial and lateral displacement of the pipeline system due to thermal expansion and contraction. For ironmaking blast furnace air supply devices and other high-temperature medium transportation occasions, high-temperature compensators with high temperature resistance and large compensation must be used. At present, such high-temperature compensators are rare. Patent No. 200320105101.2 discloses a high-temperature compensator for tertiary air ducts in the cement industry. A high-temperature-resistant heat-insulating material ...

Claims

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Application Information

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IPC IPC(8): F16L51/02F16L57/04
Inventor 李吉春邵有华
Owner 江苏亿丰机械制造有限公司
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