Expansion joint packing belt

A technology of expansion joints and annular sleeves, applied in the field of expansion joints, can solve the problems of increasing factory costs, accelerating the consumption of spectacle valve spare parts, and the difficulty of reaching the service life of spectacle valves, so as to prolong service life, reduce labor maintenance costs, and reduce maintenance The effect of frequency

Inactive Publication Date: 2015-09-09
XINXING DUCTILE IRON PIPES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As it is difficult for the spectacle valve to reach the specified service life, the consumption of spare parts for the spectacle valve is accelerated and the cost of the factory is increased

Method used

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  • Expansion joint packing belt
  • Expansion joint packing belt
  • Expansion joint packing belt

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Experimental program
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Embodiment Construction

[0014] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0015] Figure 1-2 It is a structural schematic diagram of an expansion joint of a glasses valve. The expansion joint includes an expansion joint bead 1, and the expansion joint bead 1 is connected to the pipes on both sides through the horizontal sections on both sides.

[0016] see Figure 3-4 , an expansion joint packing belt, comprising an annular sleeve 2 and concentric discs 3, two concentric discs 3 are arranged symmetrically on both sides of the annular sleeve 2, and the concentric discs 3 cooperate with the annular sleeve 2 A groove is formed to accommodate the flange 1 of the expansion joint. The diameter of the outer circle of the concentric disc 3 is the same as that of the annular sleeve 2, and the concentric disc 3 and the annular sleeve 2 are connected by full welding to ensure that the weld is seamless. Air holes, trachoma, prefer...

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PUM

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Abstract

The invention discloses an expansion joint packing belt. The packing belt comprises an annular sleeve and two concentric round pieces which are symmetrically arranged on the two sides of the annular sleeve; the concentric round pieces are matched with the annular sleeve to form a groove for containing an expansion joint protruding ring; and the diameter of outer circles of the concentric round pieces is equal to that of the annular sleeve, and the concentric round pieces are in welding connection with the annular sleeve through full-length welding. By means of the expansion joint packing belt, the service life of a glasses valve expansion joint can be effectively prolonged, the replacement frequency of a glasses valve is reduced, the gas leakage rate is reduced, consumption of glasses valve accessories is reduced, the cost of a factory is reduced, the maintenance frequency of the glasses valve expansion joint is reduced, and the manual maintenance cost is reduced.

Description

technical field [0001] The invention relates to the technical field of expansion joints, in particular to an expansion joint packing belt for glasses valve equipment with expansion joints. Background technique [0002] As the spare parts of the spectacle valve for dedusting clean gas and raw gas are corroded by gas during use, the spectacle valve shakes back and forth when it moves, which aggravates the fatigue damage of the expansion joint, and the service time of the spectacle valve is far from reaching the specified service life. , Gas leakage at the expansion joint of the glasses valve began to occur. In this case, the conventional solution is to repair the leak. However, this solution is only suitable for relatively small leakage points. In addition, due to the influence of welding on the material of the base metal, the heat-affected zone of welding is easily corroded, resulting in new leakage electricity, and the overlapping of new leakage points and old leakage ...

Claims

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Application Information

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IPC IPC(8): F16K51/00
CPCF16K51/00
Inventor 刘官军
Owner XINXING DUCTILE IRON PIPES CO LTD
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