CN2158483Y

CN2158483Y - Elastic shock-proof arrangement for pipeline

Info

Publication number: CN2158483Y
Application number: CN 93211315
Authority: CN
Inventors: 李同文
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-03
Filing date: 1993-05-03
Publication date: 1994-03-09
Anticipated expiration: 2003-05-03

Abstract

The utility model belongs to a shock-proof arrangement with same and identical diameters, which is used for pipeline connection and is composed of a telescopic body, a flange, and a seal ring. The utility model is characterized in that the telescopic body and the seal ring are integrated, and the telescopic body is a corrugated and hollow rubber tube body. The utility model has the advantages of good noise absorption performance, good shock-proof performance, safe working, easy assembly and disassembly, good seal performance, etc.

Description

Elastic shock-proof arrangement for pipeline

The utility model belongs to and is used for the expansion bend that pipeline connects.

In pipeline construction design, at a certain distance an expansion bend must be installed, so that pipeline can guarantee its safety when expanding with heat and contract with cold, otherwise will cause accident such as pipeline break.The existing multi-stage sealed expansion bend of CN89215214.1 self tightening pipeline, CN89204183.8 stacked ring type pipeline extension device belongs to unidirectional expansion bend, and it has dismounting, advantage such as easy to maintenance, if but the slip surface rust is dead, and will lose telescopic action and can cause danger; CN89201151.3 sealed pipe expansion bend is the bi-directional expansion device, and its advantage is safe and reliable, but cost is higher, dismounting, maintenance inconvenience.And these several expansion bends effect aspect damping is undesirable, and absorbs noise scarce capacity, the restriction of being docked the parallel logical heart of piping flange.

The purpose of this utility model is to disclose a kind of installation, overhaul conveniently, can bear larger axis to, laterally, angular displacement, the same reducing pipeline of the good damping effect vibration damper that stretches.

Its technological scheme is: with the flexible vibration damper of reducing pipeline, forms by telescopic body, flange, seal ring, and telescopic body and seal ring one, telescopic body is undulatory hollow tube, its flange is connected with piping flange.

The cross section of telescopic body be divided into outer in interior three layers, outer and internal layer is a rubber, the middle level is the multilayer cord fabric, and a hollow toroid groove is respectively arranged on two end flange, with the seal ring of telescopic body one on bulge loop be connected mutually, have many high elasticity to tighten up steel wire in the bulge loop.

For the flexible vibration damper of reducing, its telescopic body adopts gradually-reducing shape.

For with the supporting flexible vibration damper of smaller conduit, the union of available standards parallelpiped and is docked pipeline and is threaded and gets final product.

The utlity model has following advantage:

(1), bigger axially laterally, angular displacement, can overcome the obstructed heart of butt joint pipeline so can bear, defective such as flange is not parallel because telescopic body is rubber and multilayer cord fabric constitutes.

(2) because telescopic body is a corrugated, absorption noise step is many so inner chamber dams, and it is good therefore to absorb noise performance, has good damping effect.

(3) owing to adopt flange directly to link to each other with piping flange, therefore measures such as seal ring and telescopic body one are installed and are overhauled conveniently, do not exist telescopic pipe slip surface rust dead, safe and reliable, good seal performance.

Further specify the utility model below in conjunction with accompanying drawing and by embodiment:

Fig. 1 is the structural representation (accompanying drawing makes an abstract) of the flexible vibration damper in indentical tube road;

Fig. 2 is the structural representation of the flexible vibration damper of reducing pipeline;

Fig. 3 is the structural representation of the flexible vibration damper of small-caliber pipeline;

Schematic representation when Fig. 4 is the utility model generation lateral displacement;

Schematic representation when Fig. 5 is the utility model generation axial compression;

Schematic representation when Fig. 6 is the utility model generation angular displacement;

Schematic representation when Fig. 7 is the utility model generation axial elongation;

Embodiment 1: as shown in Figure 1, telescopic body 1 among the figure, seal ring 2, flange 3, bulge loop 4 on the seal ring, high elasticity tightens up steel wire 5, fastening piece 6, and the internal and external layer of telescopic body is that rubber, middle level are multilayer cord fabric 7, telescopic body 1 and seal ring 2 are one, telescopic body 1 is undulatory hollow tube, and flange 3 is coated on the telescopic body 1, and steel wire 5 plays the auxiliary effect that tightens up.Flange 3 is connected with piping flange by fastening piece 6.

Embodiment 2: as shown in Figure 2, the meaning of each label representative is identical with embodiment 1 among the figure, and different is that telescopic body 1 is the gradually-reducing shape body, and the annexation between each parts is with embodiment 1.

Embodiment 3, as shown in Figure 3, for the flexible vibration damper of the pipeline in footpath, replace flange 3 to be connected with the butt joint pipeline with Pipe moveable joint 8 during this practicality is implemented, and its She is with embodiment 1.

Embodiment 4: be the flexible vibration damper of the pipeline of reducing, replace flange 3 to be connected with the butt joint pipeline with the Pipe moveable joint head in the present embodiment, all the other are with embodiment 2.

Claims

1, a kind of with the flexible vibration damper of reducing pipeline, form by telescopic body, flange, seal ring, of the present utility model being characterised in that: telescopic body and seal ring one, telescopic body is undulatory hollow tube, its cross section has three layers, and outer and internal layer is a rubber, and the middle level is the multilayer cord fabric, one hollow toroid groove is respectively arranged on two end flange, with the seal ring of telescopic body one on bulge loop be connected mutually.

2, flexible vibration damper as claimed in claim 1 is characterized in that: the telescopic body of reducing vibration damper is a gradually-reducing shape.

3, flexible vibration damper as claimed in claim 1 or 2 is characterized in that: the many elastomeric steel wires that tighten up are arranged in the bulge loop of seal ring.

4, as claim 1 or 2 s' flexible vibration damper, it is characterized in that: the pipeline supporting flexible vibration damper less with caliber, the available pipe union substitutes flange, and docks pipeline by being threaded.

5, flexible vibration damper as claimed in claim 3 is characterized in that: the pipeline supporting flexible vibration damper less with caliber, the available pipe union substitutes flange, and docks pipeline by being threaded.