CN211525810U - Oil injection type anti-corrosion gas compensator - Google Patents

Abstract

The utility model discloses an oil injection type anti-corrosion gas compensator, which comprises an outer sleeve and an inner sleeve; a rotating pipe is arranged between the outer sleeve and the inner sleeve, a first sliding ring is arranged on the inner wall of the outer sleeve, and a second sliding ring is arranged on the outer wall of the inner sleeve; the first sliding ring and the second sliding ring are in sliding connection with sliding grooves formed in the outer side wall of the rotating pipe; a first pressing ring and a second pressing ring are arranged between the outer sleeve and the inner sleeve at intervals, and a sealing filler cavity is formed between the first pressing ring and the second pressing ring; the utility model discloses set up the rotating tube between outer tube and interior sleeve pipe, and be equipped with adjustment mechanism between outer tube and the rotating tube, when not only can pipeline expend with heat and contract with cold, relative movement is made in order to absorb its expansion length to inside and outside sleeve, and can be when pipeline expend with heat and contract with cold, and the angular relative displacement that inside and outside sleeve produced produces the offset force, further increases the stability in use of compensator.

Description

Oil injection type anti-corrosion gas compensator

Technical Field

The utility model belongs to the technical field of the gas compensator, especially, relate to an oiling formula anticorrosion gas compensator.

Background

The gas pipeline compensator absorbs the thermal elongation deformation of the pipeline by utilizing the natural bending laid on the pipeline, reduces the thermal stress of the pipeline and increases the use safety of the pipeline; the filler type compensator is also called as a sleeve type compensator and can be divided into cast iron and steel; the working principle of the filler compensator is that when the pipeline expands with heat and contracts with cold, the inner sleeve and the outer sleeve move relatively to absorb the expansion length of the pipeline. The friction between the stuffing and the casing produces reverse thrust, and the magnitude of the reverse thrust is in direct proportion to the pressure in the pipeline and is independent of the deformation of the pipeline.

In the prior art, the filling compensator is mostly made of metal materials, and is easily corroded by acidic ions in the coal gas in long-term contact with the coal gas, so that the damage of the compensator, the coal gas leakage and other safety problems are caused, and the production safety is seriously influenced; traditional filled compensator mostly is axial compensation displacement, is the use link in the specific, lacks angular compensation displacement, is unfavorable for the stability of compensator.

Among the prior art scheme, chinese patent application 201721534048.6 discloses a metal compensator for gas pipeline, including intervalve, end pipe and bellows, intervalve both ends symmetry install the end pipe, end pipe and intervalve between link to each other through the bellows, the bellows be the 254SMo stainless steel that resistant chloride ion corrosivity is stronger, the inner wall of intervalve, end pipe and bellows on arranged the anticorrosive coating, intervalve outer lane middle part arranged two rings of lugs, end pipe middle part arranged the round lug, the two rings of lugs of intervalve pass through the pull rod with the lug on two end pipes respectively and link to each other.

In the prior art, chinese patent application 201320705446.5 discloses a drum-shaped compensator for a main coke oven gas pipeline, which comprises: arc board, annular riser 4, characterized by: the three arc plates are identical in shape, the radian is 120 degrees, the middle part of each arc plate is provided with spaced corrugations in the direction parallel to the edge with the radian, the straight line edges of adjacent arc plates are combined and welded to form a cylinder, the middle section of the side wall of the cylinder forms spaced annular corrugations, two end faces of the cylindrical shell are respectively welded by an annular vertical plate, the inner diameter of the annular vertical plate is matched with the outer diameter of a coke oven gas main pipeline, the side wall of the cylindrical shell is respectively provided with a diffusing pipe thread head and a reserved diffusing pipe thread head, and the side wall of the cylindrical shell symmetrical to the diffusing pipe thread head and the reserved diffusing pipe thread head is provided with a reserved nitrogen gas pipe thread head.

The technical scheme is provided with the anticorrosive layer to slow down corrosion, so that the cost is high, the implementation steps are complex, and the implementation is not facilitated; and above-mentioned technical scheme has only carried out axial displacement compensation, does not carry out angle displacement compensation, and stability is relatively poor.

SUMMERY OF THE UTILITY MODEL

To the deficiency among the prior art, the utility model aims to realize an oiling formula anticorrosion coal gas compensator, through establishing the gland packing chamber between outer sleeve pipe and interior sleeve pipe. By injecting oil into the sealing filler cavity, direct contact between the coal gas and the outer sleeve is isolated, so that the purpose of corrosion resistance is achieved, gas leakage is reduced, production safety is improved, and the service life of the compensator is prolonged; set up the rotating tube simultaneously between outer tube and the interior sleeve pipe, and be equipped with adjustment mechanism between outer tube and the rotating tube, not only can when the pipeline expend with heat and contract with cold, inside and outside sleeve pipe makes relative movement in order to absorb its expansion length, and can be when the pipeline expend with heat and contract with cold, produces the offset force to the angular relative displacement that inside and outside sleeve pipe produced, further increases the stability in use of compensator.

The utility model provides a following technical scheme:

an oil injection type anti-corrosion gas compensator comprises an outer sleeve and an inner sleeve; a rotating pipe is arranged between the outer sleeve and the inner sleeve, a first sliding ring is arranged on the inner wall of the outer sleeve, and a second sliding ring is arranged on the outer wall of the inner sleeve; the first sliding ring and the second sliding ring are in sliding connection with sliding grooves formed in the outer side wall of the rotating pipe; still the interval is equipped with first clamping ring and second clamping ring between outer tube and the interior sleeve pipe, form the packing chamber between first clamping ring and the second clamping ring.

Preferably, the outer wall of the outer sleeve and the outer wall of the rotating pipe are both provided with a plurality of fixed blocks, and an adjusting mechanism is arranged between the fixed blocks of the outer sleeve and the fixed blocks of the rotating pipe; the adjusting mechanism comprises a pull rod, a spring, a sleeve and a shaft pin; the pull rod and the sleeve are coaxially sleeved, two ends of the sleeve are movably connected with the pull rod through a shaft pin, the other end of the shaft pin is connected with at least one spring, and the other end of the spring is connected with the knuckle bearing.

Preferably, first clamping ring and second clamping ring cup joint interior sheathed tube outer wall, first clamping ring with the inner wall fixed connection of outer tube, and with remove sheathed tube outer wall clearance sliding connection, the second clamping ring with interior sheathed tube outer wall fixed connection, and with the inner wall clearance sliding connection of outer tube.

Preferably, the first pressure ring and the second pressure ring are graphite packing rings with self-lubricating characteristics.

Preferably, the first sliding ring and the second sliding ring both adopt polytetrafluoroethylene.

Preferably, the gland packing chamber can be filled with kerosene or the like.

Preferably, the inner wall of the sleeve is provided with an axial elongated slot, and the elongated slot is in clearance sliding fit connection with the shaft pin.

Preferably, the sealing filler cavity is provided with a liquid injection port and a liquid discharge port.

Preferably, a plurality of groups of adjusting mechanisms are arranged between the outer sleeve and the rotating pipe.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model relates to an oiling formula anticorrosion coal gas compensator establishes the packing chamber through between outer sleeve pipe and interior sleeve pipe. By injecting oil into the sealing filler cavity, the direct contact between the coal gas and the outer sleeve is isolated, the purpose of corrosion resistance is achieved, gas leakage is reduced, the production safety is improved, and the service life of the compensator is prolonged.

(2) The utility model relates to an oiling formula anticorrosion coal gas compensator, through set up the rotating tube between outer tube and interior sleeve pipe, and be equipped with adjustment mechanism between outer tube and the rotating tube, when not only can the pipeline expend with heat and contract with cold, relative movement is made in order to absorb its expansion length to inside and outside sleeve pipe, and can be when the pipeline expend with heat and contract with cold, and the angular relative displacement that inside and outside sleeve pipe produced produces the compensatory power, further increases the stability in use of compensator.

(3) The utility model relates to an oiling formula anticorrosion coal gas compensator compares with traditional compensator, oiling formula compensator, simple structure, low in manufacturing cost, the fluid in the oiling pond of being convenient for is changed in the use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the adjusting mechanism of the present invention.

Fig. 3 is a schematic cross-sectional view of the present invention.

In the figure: 1. an outer sleeve; 2. an inner sleeve; 3. rotating the tube; 4. a first slip ring; 5. a second slip ring; 6. sealing the packing cavity; 7. a first pressure ring; 8. a second pressure ring; 9. a liquid injection port; 10. an adjustment mechanism; 11. a fixed block; 12. a knuckle bearing; 13. a spring; 14. a shaft pin; 15. a sleeve; 16. a pull rod; 17. and a liquid discharge port.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention; it is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

Referring to fig. 1-3, an oil-injection type anti-corrosion gas compensator comprises an outer sleeve 1 and an inner sleeve 2; a rotating pipe 3 is arranged between the outer sleeve 1 and the inner sleeve 2, a first sliding ring 4 is arranged on the inner wall of the outer sleeve 1, and a second sliding ring 5 is arranged on the outer wall of the inner sleeve 2; the first sliding ring 4 and the second sliding ring 5 are both in sliding connection with a sliding groove formed in the outer side wall of the rotating pipe 3; still the interval is equipped with first clamping ring 7 and second clamping ring 8 between outer tube 1 and the interior sleeve pipe 2, form sealing filler chamber 6 between first clamping ring 7 and the second clamping ring 8.

A plurality of fixing blocks 11 are arranged on the outer wall of the outer sleeve 1 and the outer wall of the rotating pipe 3, and an adjusting mechanism 10 is arranged between the fixing blocks 11 of the outer sleeve 1 and the fixing blocks 11 of the rotating pipe 3; the adjusting mechanism 10 comprises a pull rod 16, a spring 13, a sleeve 15 and a shaft pin 14; the pull rod 16 and the sleeve 15 are coaxially sleeved, two ends of the sleeve 15 are movably connected with the pull rod 16 through a shaft pin 14, the other end of the shaft pin 14 is connected with at least one spring 13, and the other end of the spring 13 is connected with the knuckle bearing 12.

First clamping ring 7 and second clamping ring 8 cup joint interior sleeve pipe 2's outer wall, first clamping ring 7 with outer tube 1's inner wall fixed connection, and with remove sheathed tube outer wall clearance sliding connection, second clamping ring 8 with interior sleeve pipe 2's outer wall fixed connection, and with outer tube 1's inner wall clearance sliding connection.

Example two

The difference from the first embodiment is that the first pressure ring 7 and the second pressure ring 8 adopt graphite packing rings with self-lubricating characteristics; the first sliding ring and the second sliding ring are made of polytetrafluoroethylene; the sealing filler cavity 6 can be filled with kerosene and the like to isolate the kerosene and effectively prevent the pipeline from being corroded and prolong the service life of the pipeline.

An axial elongated slot is formed in the inner wall of the sleeve 15, and the elongated slot is in clearance sliding fit connection with the shaft pin 14.

The sealing filler cavity 6 is provided with a liquid injection port 9 and a liquid discharge port 17, so that oil liquid can be conveniently replaced.

When the gas compensator obtained by the technical scheme works, the oil injection type anti-corrosion gas compensator is characterized in that the sealing filler cavity 6 is arranged between the outer sleeve 1 and the inner sleeve 2. By injecting oil into the sealing filler cavity 6, the direct contact between the coal gas and the outer sleeve 1 is isolated, the purpose of corrosion resistance is achieved, the gas leakage is reduced, the production safety is improved, and the service life of the compensator is prolonged; the rotating pipe 3 is arranged between the outer sleeve 1 and the inner sleeve 2, the adjusting mechanism 10 is arranged between the outer sleeve 1 and the rotating pipe 3, the inner sleeve 15 and the outer sleeve 15 can move relatively to absorb the expansion length of the pipeline when the pipeline expands with heat and contracts with cold, and the angular relative displacement generated by the inner sleeve 15 and the outer sleeve 15 can generate compensation force when the pipeline expands with heat and contracts with cold, so that the use stability of the compensator is further improved, the structure is simple, the installation is convenient, and the production cost is low.

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 (6)

1. An oil injection type anti-corrosion gas compensator comprises an outer sleeve (1), an inner sleeve (2) and a joint bearing (12); the device is characterized in that a rotating tube (3) is arranged between the outer sleeve (1) and the inner sleeve (2), a first sliding ring (4) is arranged on the inner wall of the outer sleeve (1), and a second sliding ring (5) is arranged on the outer wall of the inner sleeve (2); the first sliding ring (4) and the second sliding ring (5) are in sliding connection with sliding grooves formed in the outer side wall of the rotating pipe (3); still interval is equipped with first clamping ring (7) and second clamping ring (8) between outer tube (1) and interior sleeve pipe (2), form between first clamping ring (7) and second clamping ring (8) and seal packing chamber (6).

2. The oiling type anti-corrosion gas compensator according to claim 1, wherein the outer wall of the outer sleeve (1) and the outer wall of the rotating pipe (3) are both provided with a plurality of fixing blocks (11), and an adjusting mechanism (10) is arranged between the fixing blocks (11) of the outer sleeve (1) and the fixing blocks (11) of the rotating pipe (3); the adjusting mechanism (10) comprises a pull rod (16), a spring (13), a sleeve (15) and a shaft pin (14); the pull rod (16) and the sleeve (15) are coaxially sleeved, two ends of the sleeve (15) are movably connected with the pull rod (16) through a shaft pin (14), the other end of the shaft pin (14) is connected with at least one spring (13), and the other end of the spring (13) is connected with the knuckle bearing (12).

3. The oil injection type anti-corrosion gas compensator according to claim 1, wherein the first compression ring (7) and the second compression ring (8) are sleeved on the outer wall of the inner sleeve (2), the first compression ring (7) is fixedly connected with the inner wall of the outer sleeve (1) and is in sliding connection with the outer wall of the inner sleeve (2) in a gap, and the second compression ring (8) is fixedly connected with the outer wall of the inner sleeve (2) and is in sliding connection with the inner wall of the outer sleeve (1) in a gap.

4. The anti-corrosion gas compensator according to claim 2, wherein the sleeve (15) has an axially elongated slot formed in an inner wall thereof, and the slot is in clearance sliding fit with the shaft pin (14).

5. The oiling anti-corrosion gas compensator according to claim 1, wherein the packing gland (6) is provided with an injection port (9) and a liquid discharge port (17).

6. The oiling anti-corrosion gas compensator according to claim 1, characterized by a plurality of sets of adjusting mechanisms (10) between the outer sleeve (1) and the rotating tube (3).

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