CN2190218Y

CN2190218Y - Assembled non-thrust compensator

Info

Publication number: CN2190218Y
Application number: CN 94206139
Authority: CN
Inventors: 马学军
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-31
Filing date: 1994-03-31
Publication date: 1995-02-22
Anticipated expiration: 2004-03-31

Abstract

An assembled non-thrust compensator relates to a compensating gear for heat supply pipelines, which is composed of a bracket, a sleeve tube, a core tube, an inner and an outer steam chambers which are communicated with each other, wherein, the sleeve tube is fixed on the bracket, and the core tube is installed on the bracket by a guiding supporting board and can move axially along bracket, wherein, one end of the core tube is sheathed in the sleeve tube and can slide in the sleeve tube. The inner steam chamber is welded on the periphery of the middle of the core tube and communicated with the core tube; the outer steam chamber is sheathed on the periphery of the inner steam chamber and is fixed on the bracket; both ends of the outer steam chamber are matched with the inner steam chamber and the core tube respectively and can slide oppositely to each other; the interior area of section of the outer steam chamber equals with the interior area of section of the sleeve tube. The utility model has a compact conformation and convenient maintenance, and can eliminate the axial thrust caused by the medium internal pressure.

Description

Assembled non-thrust compensator

The utility model relates to a kind of heat supply pipeline compensation device.

Heat supply pipeline the phenomenon of expanding with heat and contract with cold can occur when operation, must adopt the compensation of pipeline device to be compensated.Though compensation of pipeline device of the prior art is of a great variety, all exist the end thrust that internal pressure caused to some extent because of pipeline internal medium.For eliminating this end thrust, the technological scheme of some no thrust pipeline compensators has been proposed, notification number is that the patent application of CN2126363U and CN105328A promptly belongs to this class compensation device.The disclosed compensation of pipeline device of above-mentioned patent application mainly utilizes bypass tube or bypass endless tube to overcome end thrust.MEDIA FLOW in the pipeline must change the flow direction when compensation device, could flow to consistent with pipeline internal medium behind bypass tube or bypass endless tube.Though the compensation of pipeline device of this bypass tube or bypass circle pipe type can overcome end thrust effectively,, thereby certainly will increase the media flow resistance because medium need change the flow direction in the pipe.In addition, the sealing system of this compensation device is located at device inside, keeps in repair very inconveniently, promptly can't stop up in case leak.When installing and arrange compensation device, except that fixed support is set, also guiding trestle must be set, thereby make the layout of pipeline and installation become very complicated.

The purpose of this utility model promptly is to design a kind of compact structure, convenient processing and manufacture, good sealing effect and the no thrust pipeline compensation device of being convenient to keep in repair.

To achieve these goals, the utility model utilizes fixed supported slab and sleeve pipe and the core pipe of guiding support plate with mutual socket to be installed on the same carriage, and sleeve pipe is fixed.Core Guan Zeke moves axially along carriage, so that pipeline is compensated.Meanwhile, interior steam chest that an additional cover interconnects in the periphery of core pipe and outer steam chest, interior steam chest are welded in the peripheral of core pipe and are communicated with the core pipe, and outer steam chest bushing is contained in the periphery of interior steam chest and core pipe and is fixed on the support.When sectional area in the outer steam chest equates with sectional area in the sleeve pipe, can eliminate the end thrust that is caused because of the medium internal pressure fully and be described in further detail below in conjunction with the technical characteristics of specific embodiment to the utility model combined type thrustless compensator.

Accompanying drawing 1 is the structural representation of the utility model combined type thrustless compensator.

With reference to the accompanying drawings 1, the utility model combined type thrustless compensator mainly is made of carriage, sleeve pipe, core pipe and steam chest.Sleeve pipe 1 is fixed on the carriage 3 by fixed supported slab 2, and the one end is sleeved on outside the core pipe and with the core pipe and works in coordination.Core pipe 4 is installed on the carriage 3 by guiding support plate 5 and can moves axially along carriage 3, and the one end is sleeved in the sleeve pipe 1 and can endwisely slips therein, and filler 6 sealings are adopted in the joint.Steam chest comprises interior steam chest and the outer steam chest that interconnects, and interior steam chest 7 is an annular, and the peripheral inlet hole 8 that also passes through in middle part that is welded in the core pipe is communicated with core pipe 4; Outer steam chest 9 is a cylindrical shape, steam chest 7 and core pipe 4 peripheral and be fixed on the carriage 3 in being sleeved on by fixed supported slab 10, one end and interior steam chest 7 are for being slidingly matched, filler 11 sealings are adopted in the joint, the other end and core pipe 4 are for being slidingly matched, filler 12 sealings are adopted in the joint, and the interior sectional area of outer steam chest 9 equates with the interior sectional area of sleeve pipe 1.

In this compensator, because the core pipe can axially slide in sleeve pipe, expanding with heat and contract with cold of core pipe can be compensated.When MEDIA FLOW is crossed this compensator, can enter outer steam chest and external steam chest generation end thrust by interior steam chest, when sectional area in the outer steam chest equates with sectional area in the sleeve pipe, this end thrust with act on sleeve pipe on the end thrust equal and opposite in direction and direction is opposite, thereby offset the end thrust that acts on the sleeve pipe fully.

The utility model compact structure, manufacturing and easy for installation, good sealing effect and easy to maintenance can be eliminated end thrust fully.Therefore, the utility model is particularly suitable for as the heat supply pipeline compensator.

Claims

1, a kind of no thrust heat supply pipeline compensation device, it is characterized in that it is to be made of carriage, sleeve pipe, core pipe and steam chest: sleeve pipe is fixed on the carriage by fixed supported slab, and the one end is sleeved on outside the core pipe and with the core pipe and works in coordination; The core pipe is installed on the carriage by the guiding support plate and can moves axially along carriage, and the one end is sleeved in the sleeve pipe and can endwisely slips therein, and packing seal is adopted in the joint; Steam chest comprises interior steam chest and the outer steam chest that interconnects, interior steam chest is an annular, it is peripheral and be communicated with the core pipe by admission opening to be welded in the middle part of core pipe, outer steam chest is a cylindrical shape, and sectional area equates with sectional area in the sleeve pipe in it, is sleeved on interior steam chest and core pipe periphery and is fixed on the carriage by fixed supported slab, one end and interior steam chest are for being slidingly matched, packing seal is adopted in the joint, and the other end and core pipe are for being slidingly matched, and packing seal is adopted in the joint.