CN215060372U

CN215060372U - Multi-channel independent sealing sleeve compensator

Info

Publication number: CN215060372U
Application number: CN202120705119.4U
Authority: CN
Inventors: 叶海燕; 吴金凤; 王伟; 何波
Original assignee: Jiangsu Aoguang Bellow Co ltd
Current assignee: Jiangsu Aoguang Bellow Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-12-07
Anticipated expiration: 2031-04-07

Abstract

The utility model discloses a multi-channel independent sealing sleeve compensator, which comprises a core pipe, a shell and a sealing structure, wherein a sealing seat is fixed on the shell; the sealing structure comprises a first sealing ring, a second sealing ring and a graphite ring, wherein the first sealing ring is symmetrically clamped inside the shell, the second sealing ring is symmetrically clamped inside the shell between the first sealing rings, and the graphite ring is filled inside the core pipe on the side edge of the first sealing ring. Through first sealing washer, second sealing washer and graphite ring cooperation, when guaranteeing the leakproofness of shell, the frictional force that produces when reducing reciprocating motion, thereby guarantee good leakproofness when core pipe and shell are static and reciprocating motion, the practicality of compensator has been improved, assist the reinforcement to fixing bolt through the gag lever post, thereby it is more firm to make to connect between flange and the connecting plate, also convenient when the pipeline splits simultaneously, with flange and connecting plate split, stability when having improved the compensator and using.

Description

Multi-channel independent sealing sleeve compensator

Technical Field

The utility model relates to a compensator specifically is independent sealed sleeve compensator of multichannel.

Background

The compensator is mainly used for compensating thermal expansion and cold contraction generated by temperature change of the pipeline, if the pipeline cannot be expanded or contracted completely and freely during temperature change, thermal stress is generated in the pipeline, the compensator is arranged on the pipeline in order to avoid pipeline breakage caused by the thermal stress and influence normal use, and therefore the compensator is very critical to stable operation of the pipeline.

The existing compensator generally adopts sealing filler to keep pipeline sealing and prevent medium leakage, but because the filler in the interior can not ensure better sealing property in the interior under the condition that a core pipe and a shell reciprocate, the internal medium is easily exposed, the friction force in the interior is easily large, the core pipe is easily abraded, and the service life of the core pipe is shortened. Accordingly, a multiple pass independent seal sleeve compensator is provided to address the above problems.

Disclosure of Invention

The multi-channel independent sealing sleeve compensator comprises a core pipe, a shell and a sealing structure, wherein a sealing seat is fixed on the shell;

seal structure includes first sealing washer, second sealing washer and graphite circle, the inside symmetry block of shell has first sealing washer, and two the inside symmetry block of shell between the first sealing washer has the second sealing washer, the inside packing of core pipe of first sealing washer side has the graphite circle, a plurality of mouths of moulding plastics have all equallyd divide to have been seted up to the shell in the graphite circle outside, every all there is sealed lid through threaded connection on the mouth of moulding plastics, the shell side is fixed with the connecting plate, and is fixed with the flange on the core pipe of connecting plate side, all fixed through a plurality of fixing bolt between flange and the connecting plate, the inside equallyd divide of connecting plate is provided with a plurality of reinforced structure.

Further, reinforced structure includes the gag lever post, the inside sliding connection that all has the gag lever post of connecting plate in the fixing bolt outside, the gag lever post outer end all is fixed with rotates the frame, the inside stopper that all symmetries are fixed with of connecting plate of rotating the frame outer end.

Furthermore, the first sealing rings are all set to be Y-shaped, and the second sealing rings are all set to be O-shaped.

Furthermore, each guide rod is symmetrically fixed on a flange on the side edge of each fixing bolt, and each fixing bolt is internally provided with a limiting groove matched with the limiting rod and the guide rod.

Furthermore, the length between every two limiting blocks is larger than the width of the rotating frame, and the length between every two limiting blocks is larger than the diameter of the limiting rod.

The utility model has the advantages that: the utility model provides a multichannel independent sealing sleeve compensator.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic structural perspective view of an embodiment of the present invention;

fig. 2 is a schematic front sectional view of a partial structure according to an embodiment of the present invention;

fig. 3 is a schematic structural front sectional view of a connection plate according to an embodiment of the present invention;

fig. 4 is a schematic top sectional view of a partial structure according to an embodiment of the present invention.

In the figure: 1. core pipe, 2, shell, 3, seal receptacle, 4, first sealing washer, 5, second sealing washer, 6, graphite circle, 7, the mouth of moulding plastics, 8, flange, 9, connecting plate, 10, fixing bolt, 11, gag lever post, 12, spacing groove, 13, rotation frame, 14, stopper, 15, guide bar, 16, sealed lid.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1-4, the multi-channel independent sealing sleeve compensator comprises a core tube 1, a housing 2 and a sealing structure, wherein a sealing seat 3 is fixed on the housing 2;

seal structure includes first sealing washer 4, second sealing washer 5 and graphite circle 6, the inside symmetry block of 2 inside of shell has first sealing washer 4, and two the inside symmetry block of 2 inside of shells between the first sealing washer 4 has second sealing washer 5, the inside packing of core pipe 1 of 4 sides of first sealing washer has graphite circle 6, the shell 2 in the 6 outsides of graphite circle has all equallyd seted up a plurality of mouths 7 of moulding plastics, every all there is sealed lid 16 through threaded connection on the mouth 7 of moulding plastics, 2 sides of shell are fixed with connecting plate 9, and are fixed with flange 8 on the core pipe 1 of connecting plate 9 side, all fixed through a plurality of fixing bolt 10 between flange 8 and the connecting plate 9, the inside equallyd divide of connecting plate 9 and be provided with a plurality of reinforced structures.

The reinforcing structure comprises a limiting rod 11, the limiting rods 11 are connected inside the connecting plates 9 on the outer sides of the fixing bolts 10 in a sliding mode, the outer ends of the limiting rods 11 are fixed with rotating frames 13, and limiting blocks 14 are symmetrically fixed inside the connecting plates 9 on the outer ends of the rotating frames 13; the first sealing rings 4 are all arranged into a Y shape, the second sealing rings 5 are all arranged into an O shape, sealing grooves matched with the first sealing rings 4 and the second sealing rings 5 are equally formed in the shell 2, the first sealing rings 4 can resist very high internal medium pressure under the self-sealing effect, and the maximum characteristic is that the sealing is more favorable for the sealing in the reciprocating motion process, after the sealing lip edges are abraded, the lip edges have certain automatic compensation capacity under the action of the medium pressure, meanwhile, the Y-shaped sealing rings are adopted for the first time, the effect of blocking foreign matters in the pipeline is achieved to a certain extent, the long-term stable use of the sleeve compensator is guaranteed, the friction force of the second sealing rings 5 is small, and the sleeve compensator can be used for fixing and sealing moving parts; guide rods 15 are symmetrically fixed on the flange 8 on the side edge of each fixing bolt 10, a limiting groove 12 matched with the limiting rod 11 and the guide rod 15 is formed in each fixing bolt 10, and the fixing bolts 10 are limited and guided through the guide rods 15, so that the limiting rods 11 and the limiting grooves 12 are conveniently aligned; every two length size between the stopper 14 all is greater than the width size of rotating frame 13, per two length between the stopper 14 all is greater than the diameter length of gag lever post 11, guarantees to rotate frame 13 and can shift out inside connecting plate 9 through between two stoppers 14, also guarantees to rotate frame 13 and rotate the back, can the block fix inside connecting plate 9.

When the utility model is used, when the shell 2 is installed, the first sealing ring 4 is adhered to the sealing surface of the core tube 1 by the open lip edge in the sealing groove, when no pressure exists in the core tube 1, small contact stress is generated due to the deformation of the lip edge, under the sealing condition, normal stress equal to medium pressure is generated at each point of contact with internal medium, therefore, the bottom of the lip ring is compressed axially, the lip part is compressed circumferentially and is contacted with the sealing surface to be widened, simultaneously, the contact stress is increased, all the first sealing rings 4 have better sealing performance under the condition that the internal medium pressure is larger, a certain amount of radial compression deformation is generated in the sealing groove when the second sealing ring 5 is installed, so that the second sealing ring generates higher initial contact stress on the sealing surface of the core tube 1, thereby preventing the liquid leakage in the core tube 1, after the pressure inside of the pipeline begins to be boosted, the liquid in the pipeline extrudes the sealing ring, the sealing ring is further deformed, and generates larger pressure intensity which is increased along with the water pressure on the sealing surface of the core pipe 1, so that the contact stress is increased, and the sealing ring and the initial contact stress together prevent the leakage of hot water in a pipeline, materials such as a graphite packing and the like are added in the graphite ring 6 and are compressed by a flange 8, so that the packing is tightly contacted with the inner pipe to form sealing, after the sealing and filling are finished, flexible graphite is injected through an injection molding opening 7, the graphite ring 6 is compressed towards two sides, the packing generates radial force while being compressed in the axial direction, so that the packing is tightly contacted with the sealing surface of the core pipe 1, meanwhile, lubricating oil in the packing is extruded out, an oil film is formed on the contact surface, when the core pipe 1 and the shell 2 reciprocate, the oil film can play a role in sealing and lubricating, the injected flexible graphite can well fill a gap in the sealing cavity, and the whole sealing performance of the sleeve compensator is improved, when the fixing bolt 10 is inserted into the flange 8 and the connecting plate 9, the limiting groove 12 on the fixing bolt 10 is aligned with the guide rod 15, then the nut is screwed to the fixing bolt 10 for fixation, the limiting rod 11 penetrates through the connecting plate 9 and is inserted into the other limiting groove 12, the rotating frame 13 is rotated to the inner side of the limiting block 14, the rotating frame 13 can be limited and fixed through the limiting block 14, the limiting rod 11 is fixed inside the connecting plate 9, the limiting rod 11 is limited and reinforced through the limiting rod 11, when the fixing bolt needs to be disassembled, the rotating frame 13 is rotated between the two limiting blocks 14, the limiting of the limiting block 14 on the rotating frame 13 can be relieved, the limiting rod 11 is directly pulled out from the connecting plate 9 through the rotating frame 13, then the nut is screwed, and the fixation between the flange 8 and the connecting plate 9 can be relieved.

The utility model discloses an useful part lies in:

1. the utility model has simple structure and convenient operation, and reduces the friction force generated during the reciprocating motion while ensuring the sealing performance of the shell 2 by matching the first sealing ring 4, the second sealing ring 5 and the graphite ring 6, thereby ensuring that the core tube 1 and the shell 2 can ensure good sealing performance when in static and reciprocating motion, and improving the practicability of the compensator;

2. the utility model discloses it is rational in infrastructure, carry out supplementary reinforcement to fixing bolt 10 through gag lever post 11 to make between flange 8 and the connecting plate 9 connect more firmly, also convenient when the pipeline splits simultaneously, with flange 8 and the 9 splits of connecting plate, improved the stability when the compensator uses.

It is well within the skill of those in the art to implement, without undue experimentation, the present invention does not relate to software and process improvements, as related to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Independent sealed sleeve compensator of multichannel, its characterized in that: the core tube type heat exchanger comprises a core tube (1), a shell (2) and a sealing structure, wherein a sealing seat (3) is fixed on the shell (2);

the sealing structure comprises a first sealing ring (4), a second sealing ring (5) and a graphite ring (6), the first sealing ring (4) is symmetrically clamped in the shell (2), and a second sealing ring (5) is symmetrically clamped in the shell (2) between the two first sealing rings (4), the inner part of the core tube (1) at the side of the first sealing ring (4) is filled with a graphite ring (6), the shell (2) at the outer side of the graphite ring (6) is equally provided with a plurality of injection molding openings (7), each injection molding opening (7) is connected with a sealing cover (16) through a thread, a connecting plate (9) is fixed at the side edge of the shell (2), a flange (8) is fixed on the core tube (1) at the side of the connecting plate (9), all fix through a plurality of fixing bolt (10) between flange (8) and connecting plate (9), connecting plate (9) inside equalling is provided with a plurality of reinforced structure.

2. The multi-pass, independent seal sleeve compensator of claim 1, wherein: the reinforced structure includes gag lever post (11), connecting plate (9) the inside sliding connection that all has gag lever post (11) in fixing bolt (10) outside, gag lever post (11) outer end all is fixed with rotates frame (13), connecting plate (9) the inside symmetry that all rotates frame (13) outer end is fixed with stopper (14).

3. The multi-pass, independent seal sleeve compensator of claim 1, wherein: the first sealing rings (4) are all arranged to be Y-shaped, and the second sealing rings (5) are all arranged to be O-shaped.

4. The multi-pass, independent seal sleeve compensator of claim 2, wherein: every all the symmetry is fixed with guide bar (15) on flange (8) of fixing bolt (10) side, every fixing bolt (10) inside all seted up with gag lever post (11) and guide bar (15) complex spacing groove (12).

5. The multi-pass, independent seal sleeve compensator of claim 2, wherein: the length between every two limiting blocks (14) is larger than the width of the rotating frame (13), and the length between every two limiting blocks (14) is larger than the diameter of the limiting rod (11).