CN108413166A

CN108413166A - Whirl compensator

Info

Publication number: CN108413166A
Application number: CN201810459155.XA
Authority: CN
Inventors: 高玉琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-15
Filing date: 2018-05-15
Publication date: 2018-08-17

Abstract

A kind of whirl compensator comprising outer barrel（1）, inner cylinder（2）, outer barrel is variable-diameter structure, and left section of inner cylinder is located in the enlarged diameter section of outer barrel, and ring-shaped rubber pipe is equipped between outer barrel and inner cylinder（4）, baffle ring is equipped on the left of ring-shaped rubber pipe（3）, gland is equipped on the right side of ring-shaped rubber pipe（8）, position of the inner cylinder between baffle ring and gland is a lug boss（12）, the air nozzle of ring-shaped rubber pipe（6）Sealing is pierced by and conduit from outer barrel（5）Right end be tightly connected, the sealing of the left end of conduit is put in the reduced diameter section of outer barrel.The pressure of fluid makes ring-shaped rubber tube swelling, realizes and is sealed between inner cylinder and outer barrel, the pressure of fluid is bigger, and ring-shaped rubber pipe and the contact of outer barrel and inner cylinder are closer.When inner cylinder moves in outer barrel, ring-shaped rubber pipe has abrasion, as long as ring-shaped rubber pipe is not worn, sealing performance would not decline.

Description

Whirl compensator

Technical field

The present invention relates to a kind of whirl compensators, are used to compensate expanding with heat and contract with cold for heat distribution pipeline.

Background technology

The structure of whirl compensator generally comprises outer barrel, inner cylinder, and one end of inner cylinder is stretched outside in outer barrel, outer barrel and inner cylinder it Between be equipped with airtight and watertight padding, the both sides of airtight and watertight padding, which are clamped, makes airtight and watertight padding generation be radially expanded, and airtight and watertight padding is with respect to outer barrel Position immobilizes, and can be relatively rotated between inner cylinder and outer barrel, generates friction when inner cylinder rotates between airtight and watertight padding, makes sealing Filler is worn, and sealing performance is caused to decline；In addition pinch seal filler needs to apply enough pretightning forces so that airtight and watertight padding with Frictional force is in maximum state of value between outer barrel and inner cylinder, and the rotation between outer barrel and inner cylinder is dumb, and airtight and watertight padding is easy Abrasion.

Invention content

The technical problem to be solved in the present invention is to provide a kind of whirl compensator, suffered by the sealing element of the whirl compensator Frictional force it is small, and can automatic compensation sealing element wear extent, can reliably keep the sealing performance of whirl compensator.

The technical scheme is that a kind of whirl compensator comprising outer barrel 1, inner cylinder 2, outer barrel is variable-diameter structure, interior Left section of cylinder is located in the enlarged diameter section of outer barrel, characterized in that ring-shaped rubber pipe 4 is equipped between outer barrel and inner cylinder, in annular Baffle ring 3 is equipped on the left of rubber tube, baffle ring is fixedly connected on the inner wall of outer barrel, and the inner circle of baffle ring is matched with the outer circle of inner cylinder, Be equipped with gland 8 on the right side of ring-shaped rubber pipe, the outer wall of gland matches with the inner wall of outer barrel, the inner circle of gland and inner cylinder it is outer Circle matches, and the flange of gland and the flange 7 of outer barrel connect, and position of the inner cylinder between baffle ring and gland is a lug boss 12, the air nozzle 6 of ring-shaped rubber pipe is sealed to be pierced by from the enlarged diameter section barrel of outer barrel and is tightly connected with the right end of conduit 5, conduit 5 Left end sealing put in the reduced diameter section of outer barrel.

It is a feature of the present invention that being equipped with ring-shaped rubber pipe between outer barrel and inner cylinder, ring-shaped rubber pipe is by conduit and outside The small diameter portion of cylinder connects, and the fluid in outer barrel enters ring-shaped rubber pipe through conduit, and the pressure of fluid keeps ring-shaped rubber pipe swollen It is swollen, it realizes and is sealed between inner cylinder and outer barrel, the pressure of fluid is bigger, and ring-shaped rubber pipe and the contact of outer barrel and inner cylinder are closer. When inner cylinder moves in outer barrel, ring-shaped rubber pipe has abrasion, as long as ring-shaped rubber pipe is not worn, sealing performance would not Decline.

Description of the drawings

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

Attached drawing mark indicates respectively：1- outer barrels, 2- inner cylinders, 3- baffle rings, 4- ring-shaped rubbers pipe, 5- conduits, 6- air nozzles, 7- methods Orchid, 8- glands, 9- pipe fittings, 10- sealing rings, 11- bolts, 12- lug bosses, 13- restrictor rings.

Specific implementation mode

In conjunction with the specific implementation mode of the description of the drawings present invention.

A kind of whirl compensator comprising outer barrel 1, inner cylinder 2, outer barrel are variable-diameter structure, and left section of inner cylinder is located at outer barrel In enlarged diameter section, characterized in that be equipped with ring-shaped rubber pipe 4 between outer barrel and inner cylinder, baffle ring is equipped on the left of ring-shaped rubber pipe 3, baffle ring is fixedly connected on the inner wall of outer barrel, and the inner circle of baffle ring is matched with the outer circle of inner cylinder, on the right side of ring-shaped rubber pipe Equipped with gland 8, the outer wall of gland is matched with the inner wall of outer barrel, and the inner circle of gland is matched with the outer circle of inner cylinder, the method for gland Orchid connect with the flange 7 of outer barrel, and position of the inner cylinder between baffle ring and gland is a lug boss 12, and lug boss plays axis to inner cylinder To position-limiting action, inner cylinder is prevented to be axially moveable.

The air nozzle 6 of ring-shaped rubber pipe seals the right side being pierced by through pipe fitting 9 and conduit 5 from the enlarged diameter section barrel of outer barrel End is tightly connected, and the left end sealing of conduit 5 is put in the reduced diameter section of outer barrel.Ring-shaped rubber pipe is by silicon rubber or ethylene-propylene-diene monomer Glue is made.

Gland, baffle ring, inner cylinder and outer barrel form a cavity for accommodating ring-shaped rubber pipe, and ring-shaped rubber pipe is not in the cavities By pretightning force, the relative rotation between outer barrel and inner cylinder is flexible.

Inner barrel and outer barrel distinguishes seal for pipe joints connection adjacent thereto when use, arrow in the flow direction of fluid such as Fig. 1 in pipeline Shown in head from left to right, fluid enters ring-shaped rubber pipe by conduit, and there is fluid certain pressure energy ring-shaped rubber pipe to be made to fill Divide expansion, so that ring-shaped rubber pipe is in close contact realization with outer barrel and inner cylinder and baffle ring and gland and seal, and the pressure the big close Contact of the big envelope with outer tube is closer.The gap that fluid also can be between baffle ring and inner cylinder in pipeline flows to ring-shaped rubber pipe, but Baffle ring left side outer barrel is relatively large in diameter, and the pressure of this section of fluid is relatively low, this section of fluid is using the gap between baffle ring and inner cylinder （Cooperation between baffle ring and inner cylinder makes the gap very little）Throttling, the pressure of this section of fluid is less than the pressure in ring-shaped rubber pipe Power makes the fluid in whirl compensator be difficult to leak along ring-shaped rubber pipe periphery.

For make whirl compensator in the duct fluid flow direction change when make also keep sealing performance, whirl compensator can Such structure is taken, i.e. the interior circular diameter of outer barrel reduced diameter section is equal with the interior circular diameter of inner cylinder, in such ring-shaped rubber pipe Pressure of the pressure still above fluid on the left of baffle ring；It is equipped with groove in the inner circle of baffle ring, sealing ring 10 is set in the groove, seals Circle can further decrease the gap between baffle ring and inner cylinder, carry out reducing pressure by regulating flow to fluid on the left of baffle ring, fluid is made to be difficult to along ring Shape rubber tube periphery leaks.It presses to the outer wall of ring-shaped rubber pipe to further decrease fluid in pipeline, on the inner wall of outer barrel Equipped with restrictor ring 13, the internal diameter of restrictor ring is equal with the interior circular diameter of inner cylinder, the right side of restrictor ring and the left side phase of inner cylinder It is close.

Compared with prior art, this whirl compensator is to sealing element（Ring-shaped rubber pipe）Do not apply pretightning force, inner cylinder rotation When ring-shaped rubber pipe pressure correlation of the frictional force only with fluid in whirl compensator, the ring-shaped rubber when the pressure of fluid is smaller The frictional force of pipe also reduces accordingly, greatly reduces the abrasion of ring-shaped rubber pipe, improves service life, while ring-shaped rubber The wear extent of the elastic reaction of pipe, ring-shaped rubber pipe can realize compensation by expanding, and maintain the sealing performance of whirl compensator.

Claims

1. a kind of whirl compensator comprising outer barrel（1）, inner cylinder（2）, outer barrel is variable-diameter structure, and left section of inner cylinder is located at outer barrel Enlarged diameter section in, characterized in that between outer barrel and inner cylinder be equipped with ring-shaped rubber pipe（4）, it is equipped on the left of ring-shaped rubber pipe Baffle ring（3）, baffle ring is fixedly connected on the inner wall of outer barrel, and the inner circle of baffle ring is matched with the outer circle of inner cylinder, in ring-shaped rubber pipe Right side be equipped with gland（8）, the outer wall of gland matches with the inner wall of outer barrel, and the inner circle of gland is matched with the outer circle of inner cylinder, The flange of gland and the flange of outer barrel（7）Connection, position of the inner cylinder between baffle ring and gland are a lug boss（12）, annular The air nozzle of rubber tube（6）Sealing is pierced by and conduit from the enlarged diameter section barrel of outer barrel（5）Right end be tightly connected, a left side for conduit End sealing is put in the reduced diameter section of outer barrel.

2. whirl compensator according to claim 1, characterized in that the interior circular diameter of outer barrel reduced diameter section and inner cylinder it is interior Circular diameter is equal, and groove is equipped in the inner circle of baffle ring, sealing ring is set in the groove（10）, restrictor ring is equipped on outer tube inner wall （13）, the right side of restrictor ring and the left side of inner cylinder are mutually close.