Zero-thrust sleeve type compensator
A sleeve compensator and no thrust technology, which is applied in expansion compensation devices for pipelines, pipes/pipe joints/fittings, mechanical equipment, etc. It can solve the problem of poor responsiveness to thrust changes of blind plates and affect the safe operation of pipe networks, etc. problems, to achieve the effect of simple structure, easy production and good timeliness
Active Publication Date: 2013-03-06
JIANGSU BT PIPE CO LTD
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- Abstract
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AI Technical Summary
Problems solved by technology
However, the sleeve compensator of the prior art has a poor response ability to the change of the thrust of the blind plate caused by the change of the medium pressure in the pipe network, and cannot make corresponding compensation in time
The thrust of the blind plate at the end of the pipe or the blind plate at the elbow is very destructive, and improper handling will affect the safe operation of the pipe network
Method used
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Embodiment Construction
[0013] The present invention will be further described below according to accompanying drawing.
[0014] attached figure 1 And attached figure 2 The thrustless sleeve compensator shown includes a left housing, an inner tube 2, a seal 3, a right housing 4, a filling pipe 5 and a ring 6. The left housing 1 and the right housing 4 are cylindrical members with flanges, and the inner hole is provided with an annular groove to place a seal 3, and rings 6 are embedded next to both sides of the annular groove, corresponding to the seal. The outer wall of 3 is provided with the filling pipe 5 of replenishing sealing material. The inner tube 2 is a straight-through round tube with a boss 2.1 outside, and the round tubes at both ends of the boss 2.1 are equal-diameter tubes. The area of the end face of the boss 2.1 of the inner tube 2 is equal to the transverse cross-sectional area of the inner hole of the inner tube 2 . The two ends of the inner tube 2 are fitted with the left ...
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The invention discloses a zero-thrust sleeve type compensator. The compensator comprises a left casing, an inner pipe, sealing parts, a right casing, filler pipes and rings, wherein the inner bores of the left casing and right casing are provided with the sealing parts and the rings; the outer walls of the corresponding sealing parts are provided with the filler pipes; the left casing and the right casing are separately sleeved on isodiametric pipes on the two ends of the inner pipe, the left casing, the right casing and the two ends of the inner pipe are integrated; the inner pipe is in clearance fit with the sealing parts and rings which are arranged in the inner bores of the left casing and right casing; the boss of the inner pipe fits with the large-pore end of the right casing to form a piston structure which moves with the inner pipe; a balance chamber consisting of the inner chamber of the right casing and the outer wall of the inner pipe is arranged on the right side of the boss of the inner pipe; the outer wall of the inner pipe is provided with a radial pore which is communicated with the balance chamber; and the outer wall of the large-pore end of the left casing is provided with an air hole. The area of the end surface of the boss of the inner pipe is equal to the cross sectional area of the inner bore of the inner pipe; the radial pore is utilized to ensure that the pressure of the balance chamber changes with the pressure of the medium; the thrust generated by the right end surface of the boss of the inner pipe is equal to the blind plate thrust on the pipeline end blind plate or the elbow and the direction of the thrusts are opposite and the thrusts counteract mutually.
Description
technical field [0001] The invention relates to a pipeline safety device, in particular to a pipeline compensator with a sleeve structure. Background technique [0002] The sleeve compensator is a general-purpose pipeline safety device. Compared with the bellows compensator, it has the remarkable characteristics of simple structure, strong pressure resistance, small flow resistance and large compensation amount. The main structure of the sleeve compensator in the prior art is an inner tube coaxially fitted in the shell, and the inner tube can perform corresponding axial telescopic movement within the set range in the shell. , the inner tube has a better compensation response capability, and the specific compensation form is the corresponding axial displacement of the inner tube. However, the sleeve compensator in the prior art has poor response ability to the change of blind plate thrust caused by the change of medium pressure in the pipe network, and cannot make correspond...
Claims
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IPC IPC(8): F16L51/00
Inventor 洪亮黄志娟
Owner JIANGSU BT PIPE CO LTD