CN201034227Y

CN201034227Y - Novel rectangular compensator

Info

Publication number: CN201034227Y
Application number: CNU2007200363814U
Authority: CN
Inventors: 张志荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-08
Filing date: 2007-04-08
Publication date: 2008-03-12
Anticipated expiration: 2017-04-08

Abstract

The utility model relates to an excellent telescopic deformation compensating element, in particular to a rectangular compensator, comprising a pair of connecting interfaces, at least one rectangular bellows and filler; wherein, the connecting interfaces are respectively connected with the upper and lower ends of the rectangular bellows; an internal conduit is arranged at one of the connecting interfaces, and the gap between the internal conduit and the rectangular bellows is filled with the filler. The utility model is characterized in that: the rectangular bellows comprises two straight rectangular bellows and four fillets, which are welded together; each fillet is adopts the structure of round outside but square inside; the quantity of the rectangular bellows is selected according to the deformation of the pipeline. The utility model has the advantages that: when using, the phenomena of stress concentration at four corners and flow chocking due to diameter reducing can be avoided so as to make the structure of the compensator simpler and more reasonable, and increase the service life of the compensator; the compensator is mainly applied in a smoke duct system of a boiler in electrical industry or applied in connecting hose for delivering gas or other types of dust gas in oil, chemical, metallurgy or construction industry.

Description

The novel rectangular compensator

Technical field:

The utility model relates to a kind of compensation device of temperature deformation and the shock-damping device of mechanical shock, particularly relates to a kind of square waveform compensator.

Background technique:

The square waveform compensator is a kind of good deformation-compensated element that can freely stretch, have functions such as shockproof, dustproof, anti-imbalance, mainly be applicable to the connecting tube of media such as industry conveying gas such as boiler cigarette ducting system and oil in the power industry, chemical industry, metallurgy, building or dust-containing airflow, being used for that absorption compensation expands with heat and contract with cold or the caused piping displacement of reason such as mechanical shock etc., is to guarantee pipe-line system and device security reliable operation essential important component.At present, the rectangle compensator that is adopted on the market has the branch of right angle and fillet, as shown in Figure 2, there is following shortcoming in use in the right angle compensator: be welded because this compensator adopts four straight wave mode materials to cut oblique angle at 45, there is weld seam in the place at the right angle, makes that in use four jiaos of stress are concentrated, through stretching repeatedly, compressing, very easily ftractureing in the weld joint, causes pipeline to produce leakage phenomenon and scrap, and increased cost and changed number of times.Existing round rectangle compensator, be subjected to the restriction of processing conditions, overall height type exterior angle R must reach more than the 800mm, interior angle R must reach more than the 600mm, and semi-long type exterior angle R must reach more than the 400mm, interior angle R could make more than must reaching 300mm, because the interior angle of compensator is bigger, between interior conduit and connection interface and the bellows around the fillet place produced the gap, must add the sealing of sealing plate, thereby cause the undergauge phenomenon, hindered the proper flow of medium, in the dust-containing airflow pipeline, the four corners position of compensator is because the undergauge choked flow especially, wear phenomenon is very serious, has shortened the working life of compensator.

Summary of the invention:

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part exactly and a kind of novel rectangular compensator is provided, adopt round outside but spuare inside four jiaos, change the mode of 45 ° of oblique angle welding simultaneously, four jiaos of stress are evenly distributed, be not subjected to the restriction of product size size.

The purpose of this utility model is achieved in that a kind of novel rectangular compensator is made up of a pair of connection interface, at least one rectangle bellows and filler, described rectangle bellows links to each other with connection interface respectively at two ends up and down, on the connection interface interior conduit is installed therein, described filler has been full of the space between interior conduit and the rectangle bellows, it is characterized in that: described rectangle bellows is welded by two pairs of straight line type bellowss and four fillets, and described four fillets adopt round outside but spuare inside structure; Can select the quantity of rectangle bellows in addition according to the amount of deformation of pipeline.

The utility model compared with prior art has following advantage:

1. because the rectangle bellows adopts four straight line type bellowss and four fillets to be welded, its link position the situation that four jiaos of stress are concentrated in use can not occur, the working life of having improved compensator not on its diagonal.

2. because four jiaos of compensator have adopted round outside but spuare inside structure, make measure-alike that the size of connection interface can be with pipeline, undergauge choked flow phenomenon can not appear, guaranteed the proper flow of medium on the one hand, four corners position the sharp wear phenomenon can not occur, the structure that makes compensator on the other hand more simply, more reasonable.

Description of drawings:

Fig. 1 is the structural representation of novel rectangular compensator described in the utility model

Fig. 2 is a rectangle compensator structure schematic representation of the prior art

Fig. 3 is the cut-away enlarged view of C-C shown in Fig. 1

1. connection interface 2. fillets 3. straight line type bellows A 4. straight line type bellows B

5. filler 6. interior conduit A 7. interior conduit B 8. rectangle bellowss

Embodiment:

From Fig. 1 and Fig. 3 as can be seen, a kind of novel rectangular compensator is made up of a pair of connection interface 1, at least one rectangle bellows 8 and filler 5, described rectangle bellows links to each other with connection interface 1 respectively at two ends about in the of 8, on the connection interface 1 interior conduit A6 is installed therein, described filler 5 has been full of the space between interior conduit A6 and the rectangle bellows 8, it is characterized in that: described rectangle bellows 8 is welded by two pairs of straight

line type bellowss

3 and 4 and four fillets 2, and described four fillets 2 adopt round outside but spuare inside structure.

Can select the quantity of rectangular wave line pipe 8 according to the amount of deformation of pipeline.

In order to increase the compensation effect of compensator, on described another connection interface 1, interior conduit B7 can be installed, interior conduit B7 is inserted between interior conduit A6 and the rectangle bellows 8.

Claims

1. a novel rectangular compensator is made up of a pair of connection interface (1), at least one rectangle bellows (8) and filler (5), described rectangle bellows (8) links to each other with connection interface (1) respectively up and down, on the connection interface (1) interior conduit A (6) is installed therein, described filler (5) has been full of the space between interior conduit A (6) and the rectangle bellows (8), it is characterized in that: described rectangle bellows (8) is welded with four fillets (2) by two pairs of straight line type bellowss (3) and (4).

2. novel rectangular compensator according to claim 1 is characterized in that: described four fillets (2) adopt round outside but spuare inside structure.

3. novel rectangular compensator according to claim 1 is characterized in that: interior conduit B (7) is installed on described another connection interface (1), and interior conduit B (7) is inserted between interior conduit A (6) and the rectangle bellows (8).