CN201078532Y

CN201078532Y - Accurate rotating compensator

Info

Publication number: CN201078532Y
Application number: CNU2007201288011U
Authority: CN
Inventors: 洪亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-20
Filing date: 2007-08-20
Publication date: 2008-06-25
Anticipated expiration: 2017-08-20

Abstract

A precise rotation compensator comprises an external casing, an internal pipe, a swaging flange, an extension pipe and a sealing material. A flexible graphite packing, the butt of which is equipped with the swaging flange, is arranged between the internal pipe 1 and the external casing. An end of the swaging flange and a flange at an end of the external casing is connected by a bolt. A steel ball is positioned between an internal convex ring of the external casing and an external convex ring of an internal casing. The other end of the external casing is connected with the extension pipe, and a clearance is left between the external casing and the extension pipe. The extension pipe is a straight pipe, the internal diameter of which is the same with the internal diameter of the internal casing, and the extension pipe and the internal casing are in coaxial correspondence. For the external side of the swaging flange is closely matched with the internal side of the external casing, the concentricity can be prevented from displacement when the pipeline is transversally shifted during the using process and the sealing material can be prevented from leaking outward under the pressure and the impact force. Moreover, for the straight pipe with the same caliber as the internal casing is used as the extension pipe, the medium can be prevented from eddying, and the bidirectional flow of the pipeline can be realized.

Description

Accurate whirl compensator

Technical field

The utility model relates to a kind of heat-net-pipeline, relates in particular to a kind of whirl compensator with torsion device.

Background technique

Heat-net-pipeline is owing to carry the medium of the temperature difference is arranged, thereby causes expanding with heat and contract with cold of pipeline, causes axially, lateral thrust and displacement.Generally the rotation of the internal and external casing by whirl compensator absorbs the end thrust and the displacement amount of heat-net-pipeline.China Patent No. 022587098 has been announced a kind of improved whirl compensator, promptly increases the steel ball that is positioned at the flange groove between supported flange and interior pipe, reduces resistance, is convenient to rotation.Simultaneously interior pipe is extended the mid-rear portion of outer tube back-end reducer pipe (conical pipe),, to improving the compensator performance great role is arranged, but still following deficiency is arranged to reduce the eddy current in the medium motion:

When 1, product used, pipeline can produce axially and horizontal two kinds of displacement amounts, and only the lateral displacement amount is little, but lateral thrust is very important.If pipeline compensator can not cause the lateral run-out of pipeline in the location to lateral thrust, thereby cause the safety problem of pipeline.Existing product is provided with the steel ball that is positioned at the flange circular groove between supported flange and interior pipe, though can correct some concentricitys, also gapped, influence the lateral stability of pipeline.Because of the product user mode is the bearing capacity pipeline, the gap between supported flange and the inner sleeve causes filler to leak because of pipeline impact force and internal pressure easily, and the processing technology complexity, assembles loaded down with trivial details.

Though 2 extend the mid-rear portion of outer tube back-end reducer pipe (conical pipe) with interior pipe, to reduce the eddy current in the medium motion, also have eddy current problem, and the duct end operating pressure is reduced, velocity of medium slows down, and influences the economic benefit of pipeline.And networking has all been carried out in concentrated supply of heating in the city now, requires the medium in the pipeline can two-way flow, and improved whirl compensator can't be accomplished this point.

Summary of the invention

The purpose of this utility model just provides a kind of accurate whirl compensator, and to solve the concentricity inaccuracy of existing whirl compensator, compensator itself is to the orientation problem of horizontal pipeline displacement; And solve filler that internal pressure and impact force the cause problem that leaks simultaneously.

The technical solution of the utility model is: comprise outer sleeve, interior pipe, binder flange, extension tube and sealing material, between interior pipe 1 and the outer sleeve flexible graphite packing is housed, the end face of flexible graphite packing is equipped with the binder flange, be connected by bolt between the flange of binder flange and outer sleeve one end, be provided with steel ball between the outer bulge loop of outer sleeve internal projecting ring and inner sleeve; The other end at described outer sleeve is connected with extension tube, leaves the gap between the two, it is characterized in that: described extension tube is the straight tube identical with the inner sleeve internal diameter, both coaxial correspondences; The outside of described binder flange and the inboard of outer sleeve are for closely cooperating.

The utility model is because binder flange and outer sleeve inboard, relying on the precision machining means to carry out closely cooperates, when making product in use can guarantee the pipeline lateral displacement takes place, the product concentricity can not be subjected to displacement, and sealing material can not leak because of pressure and impact force yet.And extension tube adopts and the straight tube of inner sleeve with bore, makes medium not produce eddy current, can also make pipeline realize two-way flow.Have precision height, good airproof performance, usability is good, the pipeline safety in operation is high characteristics.

Description of drawings

Fig. 1 is the utility model structural representation.

Description of reference numerals:

1, interior pipe 1; 2, binder flange; 3, bolt; 4, outer sleeve; 5, extension tube; 6, the outer bulge loop of inner sleeve; 7, steel ball; 8, outer sleeve internal projecting ring; 9, flexible graphite packing.

Embodiment

Referring to Fig. 1, between pipe 1 and the outer sleeve 4 flexible graphite packing 9 is housed in of the present utility model, the Expanded graphite end face has binder flange 2, be connected by bolt 3 between binder flange and the outer sleeve, be provided with steel ball 7 between the outer bulge loop 6 of outer sleeve internal projecting ring 8 and inner sleeve, the outer sleeve outside is straight-through extension tube 5, equates with interior pipe 1 internal diameter, (1～10mm), the big I in gap is determined according to the factors such as length, conveying medium and environment of pipeline to leave appropriate gap between extension tube 5 and the interior pipe 1.

Claims

1. accurate whirl compensator, comprise outer sleeve, interior pipe, binder flange, extension tube and sealing material, between interior pipe (1) and the outer sleeve flexible graphite packing is housed, the end face of flexible graphite packing is equipped with the binder flange, be connected by bolt between the flange of binder flange and outer sleeve one end, be provided with steel ball between the outer bulge loop of outer sleeve internal projecting ring and inner sleeve; The other end at described outer sleeve is connected with extension tube, leaves the gap between the two, it is characterized in that: described extension tube is the straight tube identical with the inner sleeve internal diameter, both coaxial correspondences; The outside of described binder flange and the inboard of outer sleeve are for closely cooperating.