CN201382234Y - Pressure unbalanced corrugated compensator - Google Patents

Abstract

A pressure unbalanced corrugated compensator belongs to the field of expansion devices for pipelines and mainly resolves problems of utilizing the compensator to reduce stress of main supports of pipelines and reduce investment. The pressure unbalanced corrugated compensator is characterized in that a body cavity consisting of a left annular plate (1), a right annular plate (2), an outer tube and an inner tube is mounted between a left connecting pipe (7) and a right connecting pipe (8), wherein the outer tube is provided with a working corrugated pipe (13), the inner tube is provided with a balance corrugated pipe (14), and a left sealing connector (11) and a right sealing connector (12) are respectively arranged at two end ports of the balance corrugated pipe (14). The corrugated compensator can generate unbalanced force externally to balance a portion of binding plate force generated externally by a common compensator on a pipeline, thereby reducing stress of a main support, decreasing manufacturing cost of the main support, and particularly being suitable to be arranged at two ends of long-distance straight pipelines while middle pipelines all utilize common compensators. Besides, the pressure unbalanced corrugated compensator expands properties of corrugated compensators, brings convenience for design of model selection of piping compensators and provides one more selection.

Description

A kind of pressure imbalance formula FlexbleJoint

Technical field

The utility model belongs to the expansion compensation device field that pipeline is used, and relates to a kind of pressure imbalance formula FlexbleJoint.

Background technique

In the prior art, plain edition (or universal) FlexbleJoint, externally all produce the effect of blind plate power, add the effect of rigidity power, frictional force etc., can make support especially the buttress of master bracket or direct-burried be subjected to very big power, therefore, support is difficult for design, and structure is huge uneconomical again often, and construction is also inconvenient, and floor space is big again; As all adopting the pressure balance type FlexbleJoint, because the externally effect that does not produce blind plate power, though can reduce buttress stressed of support or direct-burried, this kind compensator structure complexity, the cost height, also uneconomical.

Summary of the invention

The technical problem that solves:

A kind of pressure imbalance formula FlexbleJoint is provided, can overcome the deficiencies in the prior art, by the work bellows in the adjustment compensator and the useful area of balance bellows, utilize the poor of its useful area---be uneven area, just can produce and take all factors into consideration needed unbalanced force according to the concrete condition of whole piping and the difficulty that is provided with of support, in order to go the part of the external blind plate power that produces of plain edition compensator on the balance pipeline, thereby reduce the stressed of master bracket, save the cost of master bracket; Be particularly useful for being arranged in the two ends of long distance, straight pipe-line, and intermediate line all adopts the plain edition compensator.

The technological scheme that adopts:

A kind of pressure imbalance formula FlexbleJoint, have adapter, work bellows and balance bellows, it is characterized in that: between left and right adapter, be equipped with by left and right ring flat-plate and have the work bellows outer tube, have the body cavity that the interior pipe of balance bellows is formed, on the tube wall of the interior pipe of the both end sides of balance bellows, have by-pass hole respectively, left side head and the right side head that is tightly connected that is tightly connected is housed respectively on the two-port of balance bellows.

Beneficial effect:

Because the work bellows in the pressure imbalance formula FlexbleJoint and the useful area of balance bellows is poor, be uneven area, under pressure, can produce pressure thrust, promptly externally produce the effect of blind plate power, this power is called unbalanced force, its size is taken all factors into consideration and is drawn according to the difficulty that is provided with of the concrete condition of whole piping and support: the part of the blind plate power that this unbalanced force can externally produce in order to the plain edition compensator that goes on the balance pipeline, thereby reduce the stressed of master bracket, save the master bracket cost; Be particularly useful for being arranged in the two ends of long distance, straight pipe-line, and intermediate line all adopts the plain edition compensator, and the same when on the way of middle time support and the pipeline plain edition compensator being installed all, so, master bracket is then manufactured, is installed than being easier to, and takes up an area of again few, economical again; Widened the performance of FlexbleJoint, for the compensator Selection and Design of piping provides convenience, many a kind of selections.

Description of drawings

Fig. 1, main assembly structural representation;

Embodiment

Further explanation in detail in conjunction with the accompanying drawings;

As shown in Figure 1, body cavity composed as follows, have left ring flat-plate 1, right ring flat-plate 2, work bellows 13 is connected to by left outer tube 3, right outer tube 4 on the outer circumferential edge of left ring flat-plate 1 and right ring flat-plate 2, and balance bellows 14 is connected on the internal circle of left ring flat-plate 1 and right ring flat-plate 2 by pipe 6 in pipe 5, the right side in the left side; A left side takes over 7, rightly take over 8 one and hold respectively that coaxial-type is welded on left ring flat-plate 1 and the right ring flat-plate 2; Have left by-pass hole 9 and right by-pass hole 10 respectively on the pipe 6 in the pipe 5 and the right side in the left side; Be welded with respectively on the left and right port of balance bellows 14 left side be tightly connected 11 and the right side be tightly connected 12; The described head that is tightly connected is the ellipse end socket of same specification, perhaps is the round closure plate of same specification.

The useful area of work bellows 13 and balance bellows 14 poor is uneven area, is assumed to be S/2, is S as the useful area of other plain edition compensator on the pipeline, then uses after the present invention, and the pressure thrust on the pipeline promptly is balanced half.

The useful area of described bellows be meant the area on the ripple average diameter, and the ripple average diameter equals crest diameter and trough diameter sum half.

Claims (2)

1, a kind of pressure imbalance formula FlexbleJoint, have adapter, work bellows and balance bellows, it is characterized in that: between left and right adapter, be equipped with by left and right ring flat-plate and have the work bellows outer tube, have the body cavity that the interior pipe of balance bellows is formed, on the tube wall of the interior pipe of the both end sides of balance bellows, have by-pass hole respectively, left side head and the right side head that is tightly connected that is tightly connected is housed respectively on the two-port of balance bellows.

2, a kind of pressure imbalance formula FlexbleJoint according to claim 1 is characterized in that: the described head that is tightly connected is the ellipse end socket of same specification, perhaps is the round closure plate of same specification.

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