CN2144755Y

CN2144755Y - Without thrust and pressure balanced type bellows compensator

Info

Publication number: CN2144755Y
Application number: CN 92242482
Authority: CN
Inventors: 高百争
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-11-25
Filing date: 1992-11-25
Publication date: 1993-10-27
Anticipated expiration: 2002-11-25

Abstract

The utility model relates to a balanced type bellows compensator without thrust and pressure, comprising a main end pipe, an auxiliary end pipe, a corrugated section between the main end pipe and the auxiliary end pipe, etc. The utility model is characterized in that at least one blind pipe with the corrugated section is communicated with the auxiliary end pipe. One end of a balanced piece for force transmission is connected to the blind pipe. The other end is connected to the outer wall of the main end pipe. Because the compensator adopts the structure of the blind pipe and a force transmission mechanism, force acted on the blind pipe is transmitted to the main end pipe through the force transmission mechanism and is opposite to the pipeline thrust resulting from the medium pressure. Thereby, the balance is reached. The thrust to a fixed support seat can not be generated due to the medium pressure for the pipeline.

Description

Without thrust and pressure balanced type bellows compensator

The utility model relates to a kind of no thrust pressure balance type corrugated expansion joint that is applicable on the heating power conveyance conduit.

Carrying on the pipeline (as steam line) of high temperature media needs to install compensator, to weaken or eliminate the axial stress that produces when expanding with heat and contract with cold on pipeline.Axialmode compensator at present commonly used has two kinds of slip-type expansion joint and corrugated expansion joints, compares with slip-type expansion joint, and corrugated expansion joint has the clear superiority that does not leak.When the pressure medium of line transportation is higher, if use the axial corrugated expansion joint of plain edition, pressure medium can make pipeline that fixed bearing is produced very big thrust, sometimes even bring difficulty can for the structural design of fixed bearing, for overcoming the thrust problem, the past has the people once to design and produces the pressure balance type corrugated expansion joint, but the processing technology complexity of this compensator, cost height, make most applying units be difficult to bear its price, be difficult for promoting the use of.

The purpose of this utility model provides a kind of no thrust pressure balance type corrugated expansion joint at existing problem in the above-mentioned prior art exactly, this compensator structure advantages of simple, and counterbalance effect is obvious, and manufacture cost is lower.

The purpose of this utility model can adopt following measure to realize:

The utility model mainly is made up of main end pipe, secondary end pipe and marginal bellows segment etc.; Be communicated with the blind pipe that at least one has bellows segment on pair end pipe, balance force transmission element one is terminated on the blind pipe, and the other end is connected to the outer wall of main end pipe.

The utility model can hold the Vertical direction connection one of pipe to have the blind pipe of bellows segment in pair, the balance force transmission element (can be rope, also can be chain) one be terminated on the blind pipe end cap, the other end is walked around power transmission and is turned to guide wheel (can be pulley, also can be sprocket wheel) to be connected to the outer wall of main end pipe.

The utility model also can hold the direct connection one of axial direction of pipe to have the blind pipe of bellows segment in pair, and secondary end pipe is by flank pipe (one or two) and the connection of rear portion pipeline.

The utility model can also adopt with pair end pipe parallel direction on a blind pipe that has bellows segment is set, be communicated with by intervalve between secondary end pipe and the blind pipe.Or with pair end pipe parallel direction on be provided with about two blind pipes that have bellows segment, respectively be communicated with between secondary end pipe and two blind pipes by an intervalve.

The utility model compared with prior art has the following advantages: simple and reasonable, manufacture cost is lower, owing to adopted the structure of setting up blind pipe and force transmission mechanism, make the power that acts on the blind pipe pass to main end pipe by force transmission mechanism, opposite with the caused pipeline thrust of pressure medium, thereby reach balance, pipeline just can not produce thrust because of pressure medium to fixed bearing more yet.

The drawing of accompanying drawing is described as follows:

Fig. 1: the utility model embodiment 1 plan view.

Fig. 2: the plan view when a flank pipe is set among the utility model embodiment 2.

Fig. 3: the plan view when two flank pipes are set among the utility model embodiment 2.

Fig. 4: the plan view that a blind pipe is set among the utility model embodiment 3.

Fig. 5: the plan view that two blind pipes are set among the utility model embodiment 3.

The utility model is done with detailed description below in conjunction with embodiment's (accompanying drawing):

Embodiment 1

As shown in Figure 1: compensator of the present utility model is made up of main end pipe 1, secondary end pipe 2 and marginal bellows segment 3 etc., the blind pipe 5 that has bellows segment 4 in the Vertical direction connection one of pair end pipe 2, balance force transmission element 6(can be rope, also can be chain) one be terminated on the blind pipe end cap, the other end is walked around power transmission and is turned to guide wheel 7(to can be pulley, also can be sprocket wheel) be connected to and lead the outer wall of holding pipe 1.

Embodiment 2

As Fig. 2, shown in Figure 3: compensator of the present utility model is made up of main end pipe 1, secondary end pipe 2 and marginal bellows segment 3 etc., directly be communicated with a blind pipe 5 that has bellows segment 4 at the axial direction of pair end pipe 2, secondary end pipe 2 by one, also can be communicated with the rear portion pipeline by two flank pipes 8; Balance dowel bar 6 one is terminated on blind pipe 5 end caps, and the other end is connected to the outer wall of main end pipe 1.

Embodiment 3

As shown in Figure 4: compensator of the present utility model is made up of main end pipe 1, secondary end pipe 2 and marginal bellows segment 3 etc., with the parallel direction of pair end pipe 2 on a blind pipe 5 that has bellows segment 4 is set, be communicated with by intervalve 9 between secondary end pipe 2 and the blind pipe 5, balance dowel bar 6 one is terminated on blind pipe 5 end caps, and the other end is connected to the outer wall of main end pipe 1.

As shown in Figure 5: compensator of the present utility model is made up of main end pipe 1, secondary end pipe 2 and marginal bellows segment 3 etc., with the parallel direction of pair end pipe 2 on two blind pipes 5 that have bellows segment 4 are set, respectively be communicated with between secondary end pipe 2 and the blind pipe 5 by an intervalve 9, balance dowel bar 6 one is terminated on blind pipe 5 end caps, and the other end is connected to the outer wall of main end pipe 1.

Equilibrium principle of the present utility model is as follows: when the pressure medium that transmits acts on the blind pipe end cap, pressure can pass to main end pipe by balance power transmission rod member, make it with pipeline on the power that causes by the medium that transmits balance each other, thereby solved pipeline because of pressure medium to thrust that fixed bearing produced.

Claims

1, a kind of no thrust pressure balance type corrugated expansion joint, it is made up of main end pipe 1, secondary end pipe 2 and marginal bellows segment 3 etc., it is characterized in that: on pair end pipe 2, be communicated with at least one blind pipe that has bellows segment 45, balance force transmission element 6 one is terminated on the blind pipe 5, and the other end is connected to the outer wall of main end pipe 1.

2, no thrust pressure balance type corrugated expansion joint according to claim 1, it is characterized in that: the blind pipe 5 that has bellows segment 4 in the Vertical direction connection one of pair end pipe 2, balance force transmission element 6 one is terminated on the blind pipe end cap, and the other end is walked around power transmission and turned to guide wheel 7 to be connected to the outer wall of main end pipe 1.

3, no thrust pressure balance type corrugated expansion joint according to claim 2, it is characterized in that: the balance force transmission element is a rope, it is pulley structure that power transmission turns to guide wheel.

4, no thrust pressure balance type corrugated expansion joint according to claim 2, it is characterized in that: the balance force transmission element is a chain, it is a sprocket wheel that power transmission turns to guide wheel.

5, no thrust pressure balance type corrugated expansion joint according to claim 1 is characterized in that: directly be communicated with a blind pipe 5 that has a bellows segment 4 at the axial direction of pair end pipe 2, secondary end pipe 2 is connected by flank pipe 8 and rear portion pipeline.

6, no thrust pressure balance type corrugated expansion joint according to claim 5 is characterized in that: secondary end pipe 2 is connected by two flank pipes and rear portion pipeline.

7, no thrust pressure balance type corrugated expansion joint according to claim 5 is characterized in that: secondary end pipe 2 is connected by a flank pipe and rear portion pipeline.

8, no thrust pressure balance type corrugated expansion joint according to claim 1 is characterized in that: be provided with a blind pipe 5 that has bellows segment 4 with pair end pipe 2 parallel directions, be communicated with by intervalve 9 between secondary end pipe 2 and the blind pipe 5.

9, no thrust pressure balance type corrugated expansion joint according to claim 1, it is characterized in that: respectively be communicated with between two blind pipes 5 that have bellows segment 4 about being provided with, secondary end pipe 2 and two blind pipes 5 by an intervalve 9 with pair end pipe 2 parallel directions.