CN214579637U

CN214579637U - Filling type composite sleeve compensator

Info

Publication number: CN214579637U
Application number: CN202023156145.0U
Authority: CN
Inventors: 孟延; 吴建伏
Original assignee: Jiangsu Xin Xin Bellows Co ltd
Current assignee: Jiangsu Xin Xin Bellows Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-11-02
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses an injection filling type composite sleeve compensator, which belongs to the field of pipeline equipment, and comprises a core pipe, a reducing pipe, a sleeve and a balance cavity outer pipe, wherein the left end of the balance cavity outer pipe is connected with the outer wall of the core pipe through a balance cavity ring plate, and the right end of the balance cavity outer pipe is connected with the left end part of the reducing pipe; a sealing rubber ring is arranged between the inner wall of the balance cavity outer tube and the outer wall of the sleeve for sealing; the double-sealing structure that the inner ring is sealed by filling type flexible graphite and the outer ring is sealed by a rubber ring is formed, so that the operation stability of the structure is ensured, and the sealing of the joint is enhanced.

Description

Filling type composite sleeve compensator

Technical Field

The utility model relates to a plumbing equipment field, concretely relates to compound sleeve compensator of formula is filled to notes.

Background

The sleeve compensator is used as a compensation device of a hot fluid pipeline, is suitable for media such as hot water, steam, grease and the like, and achieves compensation of thermal expansion through sliding movement of the core pipe relative to the outer pipe or the outer shell. The existing sleeve compensator is additionally provided with a sealing mechanism on the basis of the sleeve compensator of the thermal power pipeline, so that a core pipe can be freely moved in a sealing state, and good compensation performance is guaranteed.

In the prior art, a sleeve compensator is sealed by 2-4 rubber rings, so that the aging resistance and the sealing effect are poor, and the leakage phenomenon of the compensator is easy to occur; the simple graphite sealing sleeve compensator has too large friction force and cannot be suitable for a pipe network with strict requirements on the friction force.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound sleeve compensator of formula of filling.

The technical scheme of the utility model is that: a filling type composite sleeve compensator comprises a core pipe and a reducing pipe, wherein the left end of the reducing pipe is sleeved at the right end of the core pipe, the outer wall of the core pipe is sleeved with a sleeve, a balance cavity outer pipe is arranged outside the sleeve, the left end of the balance cavity outer pipe is connected with the outer wall of the core pipe through a balance cavity annular plate, the right end of the balance cavity outer pipe is connected with the left end of the reducing pipe, a first transition pipe is fixedly connected to the left side of the balance cavity annular plate, and the first transition pipe is sleeved outside the core pipe; a first sealing structure is arranged between the first transition pipe and the outer wall of the core pipe, the first sealing structure comprises a first packing gland and a first sealing cavity arranged between the first packing gland and the first transition pipe, a first filling nozzle communicated with the first sealing cavity is arranged on the first transition pipe, and flexible graphite packing filled through the first filling nozzle is arranged in the first sealing cavity; a second sealing structure is arranged between the inner wall of the left end of the reducer pipe and the outer wall of the right end of the core pipe, the second sealing structure comprises a second packing gland and a second sealing cavity arranged between the second packing gland and the reducer pipe, a second filling nozzle communicated with the second sealing cavity is arranged at one end, close to the second packing gland, of the reducer pipe, and flexible graphite packing filled through the second filling nozzle is arranged in the second sealing cavity; and a sealing rubber ring is arranged between the inner wall of the balance cavity outer tube and the outer wall of the sleeve.

According to a further technical scheme, the first packing gland is connected with the first transition pipe through a first pull rod.

According to a further technical scheme, the second packing gland is connected with the reducer pipe through a second pull rod.

The utility model has the advantages that:

the utility model discloses wholly adopt composite seal's mode, the utility model discloses then adopt simple structure's sealing rubber circle to seal between the inner wall of well balanced chamber outer tube and the telescopic outer wall, and because the utility model discloses well sleeve and balanced chamber crown plate, balanced chamber outer tube between form balanced chamber, can overcome the blind plate force that medium pressure produced through this balanced chamber to improve the operating stability of compensator, consequently set up the first sealed chamber between first gland and the first transition pipe, set up the sealed chamber of second between second gland and reducing pipe and can adopt flexible graphite to seal, thereby reach sealed effectual characteristics, thereby maintain the normal work of having guaranteed the compensator through annotating the material injection to sealed chamber simultaneously to the mouth of packing.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The device comprises a core pipe 1, a core pipe 2, a reducer pipe 3, a sleeve 4, a balance cavity outer pipe 5, a balance cavity annular plate 6, a first transition pipe 7, a first packing gland 8, a first sealing cavity 9, a first filling nozzle 10, a second packing gland 11, a second sealing cavity 12, a second filling nozzle 13, a sealing rubber ring 14, a first pull rod 15 and a second pull rod.

Detailed Description

The invention will be further elucidated below by means of non-limiting examples, with the understanding that the invention is not limited thereto.

As shown in fig. 1, the utility model relates to an injection filling type composite sleeve compensator, which comprises a core tube 1 and a reducer tube 2, wherein the left end of the reducer tube 2 is sleeved at the right end of the core tube 1, the outer wall of the core tube 1 is sleeved with a sleeve 3, a balance cavity outer tube 4 is arranged outside the sleeve 3, the left end of the balance cavity outer tube 4 is connected with the outer wall of the core tube 1 through a balance cavity annular plate 5, the right end of the balance cavity outer tube is connected with the left end of the reducer tube 2, the left side of the balance cavity annular plate 5 is fixedly connected with a first transition tube 6, and the first transition tube 6 is sleeved outside the core tube 1; a first sealing structure is arranged between the first transition pipe 6 and the outer wall of the core pipe 1, the first sealing structure comprises a first packing gland 7 connected with the first transition pipe 6 through a first pull rod 14 and a first sealing cavity 8 arranged between the first packing gland 7 and the first transition pipe 6, a first filling nozzle 9 communicated with the first sealing cavity 8 is arranged on the first transition pipe 6, and flexible graphite packing filled through the first filling nozzle 9 is arranged in the first sealing cavity 8; a second sealing structure is arranged between the inner wall of the left end of the reducer pipe 2 and the outer wall of the right end of the core pipe 1, the second sealing structure comprises a second filling and sealing cover 10 connected with the reducer pipe 2 through a second pull rod 15 and a second sealing cavity 11 arranged between the second filling and sealing cover 10 and the reducer pipe 2, one end, close to the second filling and sealing cover 10, of the reducer pipe 2 is provided with a second filling and sealing nozzle 12 communicated with the second sealing cavity 11, and flexible graphite packing filled through the second filling and sealing nozzle 12 is arranged in the second sealing cavity 11; a sealing rubber ring 13 is arranged between the inner wall of the balance cavity outer tube 4 and the outer wall of the sleeve 3.

The utility model discloses in because sleeve 3 and balanced chamber crown plate 5, form balanced chamber between the balanced outer tube of chamber 4, can overcome the blind plate power that medium pressure produced through this balanced chamber, thereby improve the operating stability of compensator, consequently, set up first sealed chamber 8 between first gland 7 and first transition pipe 6, the sealed chamber 11 of second that sets up between second gland 10 and reducing pipe 2 can adopt flexible graphite to seal, thereby reach sealed effectual characteristics, thereby the normal work of compensator has been guaranteed to the injection material in the sealed chamber through the notes mouth of filling simultaneously.

To sum up, the utility model discloses an inner circle adopts to annotate to fill formula flexible graphite and seals, the outer lane adopts the rubber circle to carry out the double seal structure who seals to both guaranteed the operating stability of structure, strengthened the sealed of junction again.

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. The utility model provides a compound sleeve compensator of formula of filling, includes core pipe and reducing pipe, and the left end cover of reducing pipe is located the right-hand member of core pipe, the outer wall cover of core pipe is equipped with the sleeve, telescopic outside is equipped with balanced chamber outer tube, the left end of balanced chamber outer tube through balanced chamber crown plate with the outer wall of core pipe is connected, the right-hand member with the left side end connection of reducing pipe, its characterized in that: the left side of the balance cavity annular plate is fixedly connected with a first transition pipe, and the first transition pipe is sleeved outside the core pipe; a first sealing structure is arranged between the first transition pipe and the outer wall of the core pipe, the first sealing structure comprises a first packing gland and a first sealing cavity arranged between the first packing gland and the first transition pipe, a first filling nozzle communicated with the first sealing cavity is arranged on the first transition pipe, and flexible graphite packing injected through the first filling nozzle is arranged in the first sealing cavity; a second sealing structure is arranged between the inner wall of the left end of the reducer pipe and the outer wall of the right end of the core pipe, the second sealing structure comprises a second packing gland and a second sealing cavity arranged between the second packing gland and the reducer pipe, a second filling nozzle communicated with the second sealing cavity is arranged at one end, close to the second packing gland, of the reducer pipe, and flexible graphite packing filled through the second filling nozzle is arranged in the second sealing cavity; and a sealing rubber ring is arranged between the inner wall of the balance cavity outer tube and the outer wall of the sleeve.

2. The cast-in-place composite sleeve compensator of claim 1, wherein: the first packing gland is connected with the first transition pipe through a first pull rod.

3. The cast-in-place composite sleeve compensator of claim 1, wherein: the second packing gland is connected with the reducer pipe through a second pull rod.