CN216479497U

CN216479497U - High-pressure high-speed stainless steel rotary joint for chemical industry

Info

Publication number: CN216479497U
Application number: CN202122527714.6U
Authority: CN
Inventors: 黄忠
Original assignee: Tengzhou Youlite Sealing Technology Co ltd
Current assignee: Tengzhou Youlite Sealing Technology Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-05-10
Anticipated expiration: 2031-10-20

Abstract

The utility model discloses a high-pressure high-speed stainless steel rotary joint for the chemical industry, and particularly relates to the technical field of rotary joints. The utility model enhances the corrosion-resistant sealing performance of the stainless steel rotary joint, better separates the rotary joint from transmitted corrosive substances and the like, and reduces the influence of the external environment on the interior of the rotary joint, so that the rotary joint is protected and protected, is not easy to corrode and damage, and prolongs the service life.

Description

High-pressure high-speed stainless steel rotary joint for chemical industry

Technical Field

The utility model relates to the technical field of rotary joints, in particular to a high-pressure high-speed stainless steel rotary joint for the chemical industry.

Background

The high-pressure high-speed stainless steel rotary joint is a pipeline connecting device which is made of stainless steel and used for certain high-pressure high-working speed, and the connected pipelines can rotate relatively and can be used for conveying various media such as gas, liquid, oil and the like. However, in practical use, in industries such as chemical engineering and the like, the rotary joint often transmits corrosive substances such as gas and liquid, and most rotary joints are in direct contact with the rotary joint, and the corrosion-resistant sealing performance of the rotary joint is general, so that damage is easily caused, and the use of the rotary joint is influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above defects in the prior art, embodiments of the present invention provide a high-pressure high-speed stainless steel rotary joint for chemical industry, so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high-speed stainless steel rotary joint of high pressure for chemical industry, includes the stainless steel shell and establishes the oilless bearing in the stainless steel shell, the inside of stainless steel shell rotates through oilless bearing and is connected with the outer tube, the inside of outer tube is equipped with the corrosion resistant inner tube, the fixed intercommunication in bottom of stainless steel shell has the company pipe, the bottom mounting intercommunication of company pipe has the mount pad, just the internal surface of stainless steel shell, company pipe and mount pad all is equipped with the corrosion resistant layer, the inside of stainless steel shell is equipped with two polymer carborundum rings and corrosion resistant sealing ring, just polymer carborundum ring is located between corrosion resistant sealing ring and the oilless bearing, the top of stainless steel shell is equipped with seal gasket.

Preferably, a plurality of clamping rods are fixed at the bottom of the sealing gasket, a plurality of clamping grooves are formed in the top end of the stainless steel shell, the clamping rods are located in the clamping grooves, arc-shaped grooves are formed in two sides of the bottom end of each clamping rod, elastic blocks are fixed on two sides of the inner wall of each clamping groove, the outer surfaces of the opposite ends of the elastic blocks tightly abut against the inner wall surfaces of the arc-shaped grooves, and the lower surface of the sealing gasket tightly abuts against the top of the stainless steel shell.

Preferably, the outer surface of the top end of the outer tube penetrates through the stainless steel shell and is provided with external threads.

Preferably, the two high molecular silicon carbide rings and the corrosion-resistant sealing ring are respectively and symmetrically distributed at the top and the bottom of the oilless bearing, and the outer surfaces of the high molecular silicon carbide rings respectively and tightly abut against the outer surfaces of the oilless bearing and the corrosion-resistant sealing ring.

Preferably, the inner ring surfaces of the high-molecular silicon carbide ring, the corrosion-resistant sealing ring and the sealing gasket are tightly abutted against the outer surface of the outer tube.

Preferably, the corrosion-resistant inner pipes are communicated with the stainless steel outer shell, the connecting pipe and the mounting seat.

Preferably, a plurality of mounting holes are formed in the mounting seat.

The utility model has the technical effects and advantages that:

1. compared with the prior art, through setting up corrosion resistant inner tube, corrosion resistant layer, corrosion resistant sealing ring and seal gasket etc. make stainless steel rotary joint have better corrosion resistant sealing performance, separate rotary joint and the conveying have corrosive substance etc. betterly to and reduce the influence of external environment to rotary joint inside, make it protect stainless steel rotary joint, difficult corrosion damage, increase of service life.

2. Compared with the prior art, through setting up kelly and elasticity piece etc. can make seal gasket block relatively on stainless steel shell through kelly and elasticity piece etc. if need dismantle, the effort of its elasticity piece is limited, exerts certain power and then can extract seal gasket and the kelly on it, and the flexibility is stronger, facilitates the use.

Drawings

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

FIG. 2 is a schematic view of the specific structure of the stainless steel housing of the present invention.

FIG. 3 is a schematic view of a front cross-sectional structure of a stainless steel housing according to the present invention.

FIG. 4 is a schematic view of a specific structure of a gasket of the present invention.

FIG. 5 is a schematic view of the enlarged structure of part A of the present invention.

The reference signs are: 1. a stainless steel housing; 2. an oilless bearing; 3. an outer tube; 4. a corrosion-resistant inner tube; 5. connecting pipes; 6. a mounting seat; 7. a corrosion-resistant layer; 8. a high molecular silicon carbide ring; 9. a corrosion-resistant sealing ring; 10. sealing gaskets; 11. a clamping rod; 12. a card slot; 13. an arc-shaped slot; 14. an elastic block; 15. an external thread; 16. and (7) installing holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in the accompanying drawings 1-5, a high-pressure high-speed stainless steel rotary joint for chemical industry comprises a stainless steel shell 1 and an oilless bearing 2 arranged in the stainless steel shell 1, wherein the inside of the stainless steel shell 1 is rotatably connected with an outer pipe 3 through the oilless bearing 2, a corrosion-resistant inner pipe 4 is arranged inside the outer pipe 3, a connecting pipe 5 is fixedly communicated with the bottom of the stainless steel shell 1, a mounting seat 6 is fixedly communicated with the bottom end of the connecting pipe 5, corrosion-resistant layers 7 are arranged on the inner surfaces of the stainless steel shell 1, the connecting pipe 5 and the mounting seat 6, two high-polymer silicon carbide rings 8 and two corrosion-resistant sealing rings 9 are arranged inside the stainless steel shell 1, the high-polymer silicon carbide rings 8 are positioned between the corrosion-resistant sealing rings 9 and the oilless bearing 2, and a sealing gasket 10 is arranged at the top of the stainless steel shell 1;

wherein, the outer pipe 3 and the stainless steel shell 1 can be respectively connected with the required equipment and the like through the external thread 15 and the mounting seat 6, the outer pipe 3 and the corrosion resistant inner pipe 4 are of an integral structure, and when the outer pipe 3 rotates under stress, the oilless bearing 2, the high molecular silicon carbide ring 8, the corrosion resistant sealing ring 9, the sealing gasket 10 and the like can not only assist and stabilize the support and enable the outer pipe to adapt to high-speed rotation, but also bear certain axial pressure and ensure the stability of high-speed rotation under a high-pressure state, and the corrosion resistant inner pipe 4, the corrosion resistant layer 7, the high molecular silicon carbide ring 8, the corrosion resistant sealing ring 9, the sealing gasket 10 and the like are added, so that the stainless steel rotary joint has better corrosion resistant sealing performance, the stainless steel shell 1 and the like are better separated from transmitted corrosive substances and the like, the influence of the external environment on the inside of the rotary joint is reduced, and the stainless steel rotary joint is protected, the service life of the sealing ring is prolonged, and the balanced end face seal and the high-molecular silicon carbide ring 8 are adopted, so that the pressures generated at the two ends of the corrosion-resistant sealing ring 9 are almost equal, the abrasion of the sealing load on the sealing surface is effectively reduced, the friction coefficient is low, the sealing effect is good, the problems that the rotary joint is easy to corrode and seal are well solved, and the service life is prolonged.

In a preferred embodiment, as shown in fig. 3, fig. 4 and fig. 5, a plurality of clamping bars 11 are fixed at the bottom of the sealing gasket 10, a plurality of clamping grooves 12 are formed in the top end of the stainless steel housing 1, the clamping bars 11 are located in the clamping grooves 12, arc-shaped grooves 13 are formed in two sides of the bottom end of the clamping bars 11, elastic blocks 14 are fixed on two sides of the inner wall of the clamping grooves 12, the outer surface of the opposite end of each elastic block 14 tightly abuts against the inner wall surface of the arc-shaped groove 13, and the lower surface of the sealing gasket 10 tightly abuts against the top of the stainless steel housing 1, so that the sealing gasket 10 can be clamped on the stainless steel housing 1 relatively through the clamping bars 11 and the elastic blocks 14, if the sealing gasket 10 needs to be detached, the acting force of the elastic blocks 14 is limited, and the sealing gasket 10 and the clamping bars 11 thereon can be pulled out by applying a certain force, which is highly flexible and convenient to use.

In a preferred embodiment, as shown in fig. 1 and fig. 2, the outer surface of the top end of the outer tube 3 is arranged in the stainless steel shell 1 in a penetrating way and is provided with an external thread 15, so that the external thread 15 can conveniently connect the outer tube 3 and the corrosion-resistant inner tube 4 with required equipment and the like.

In a preferred embodiment, as shown in fig. 3, two high molecular silicon carbide rings 8 and corrosion resistant sealing rings 9 are symmetrically distributed on the top and bottom of the oilless bearing 2, respectively, and the outer surfaces of the high molecular silicon carbide rings 8 tightly abut against the outer surfaces of the oilless bearing 2 and the corrosion resistant sealing rings 9, respectively, so as to enhance the sealing performance inside the rotary joint.

In a preferred embodiment, as shown in fig. 3, the inner annular surfaces of the high molecular silicon carbide ring 8, the corrosion resistant sealing ring 9 and the sealing gasket 10 are tightly abutted against the outer surface of the outer tube 3, so that when the outer tube 3 and the like are stressed to rotate, the high molecular silicon carbide ring 8, the corrosion resistant sealing ring 9, the sealing gasket 10, the oilless bearing 2 and the like can not only assist in stable support to adapt to high-speed rotation, but also bear a certain axial pressure, ensure the stability of high-speed rotation in a high-pressure state, and facilitate the use of a high-pressure high-speed stainless steel rotary joint.

In a preferred embodiment, as shown in fig. 1, fig. 2 and fig. 3, the corrosion-resistant inner pipe 4 is communicated with the stainless steel outer shell 1, the connecting pipe 5 and the mounting seat 6, so as to conveniently and rapidly convey gas, liquid and the like.

In a preferred embodiment, as shown in fig. 1, 2 and 3, the mounting base 6 has a plurality of mounting holes 16 formed therein so that the mounting base 6 and the like can be mounted and connected at a desired position by the mounting holes 16 and a tool such as a related bolt.

The working principle of the utility model is as follows: when in use, the outer pipe 3, the stainless steel shell 1 and the like can be respectively connected and installed with required equipment and the like through the outer thread 15 and the installation seat 6, the corrosion-resistant inner pipe 4 can be stressed to rotate and can transmit gas, liquid and the like for use, the corrosion-resistant inner pipe 4, the corrosion-resistant layer 7, the corrosion-resistant sealing ring 9, the sealing gasket 10 and the like are additionally arranged, so that the stainless steel rotary joint has better corrosion-resistant sealing performance, the rotary joint is better separated from transmitted corrosive substances and the like, the influence of the external environment on the inside of the rotary joint is reduced, the rotary joint is protected and protected, the service life is prolonged, a balanced end face seal and a high-molecular silicon carbide ring 8 and the like are adopted, the friction coefficient is low, the sealing effect is good, the problems that the rotary joint is easy to corrode and is sealed are better solved, the acting force of the elastic block 14 is limited, and the sealing gasket 10 and the clamping rod 11 on the sealing gasket can be pulled out by applying a certain force, is convenient for disassembly and assembly.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-speed stainless steel rotary joint of high pressure for chemical industry, includes stainless steel shell (1) and establishes oilless bearing (2) in stainless steel shell (1), its characterized in that: the inside of stainless steel shell (1) is rotated through oil free bearing (2) and is connected with outer tube (3), the inside of outer tube (3) is equipped with corrosion resistant inner tube (4), the fixed intercommunication in bottom of stainless steel shell (1) has connecting pipe (5), the bottom mounting intercommunication of connecting pipe (5) has mount pad (6), just the internal surface of stainless steel shell (1), connecting pipe (5) and mount pad (6) all is equipped with corrosion resistant layer (7), the inside of stainless steel shell (1) is equipped with two polymer carborundum rings (8) and corrosion resistant sealing ring (9), just polymer carborundum ring (8) are located between corrosion resistant sealing ring (9) and oil free bearing (2), the top of stainless steel shell (1) is equipped with seal gasket (10).

2. The high-pressure high-speed stainless steel rotary joint for the chemical industry according to claim 1, wherein: the bottom of seal gasket (10) is fixed with a plurality of kelly (11), a plurality of draw-in groove (12) have been seted up to the inside top of stainless steel shell (1), just kelly (11) are located draw-in groove (12), arc wall (13) have been seted up to the bottom both sides of kelly (11), the both sides of draw-in groove (12) inner wall are fixed with flexible piece (14), just the one end surface that elasticity piece (14) is relative closely contradicts at the inner wall surface of arc wall (13), just the lower surface of seal gasket (10) closely contradicts at the top of stainless steel shell (1).

3. The high-pressure high-speed stainless steel rotary joint for the chemical industry according to claim 1, wherein: the outer surface of the top end of the outer pipe (3) penetrates through the stainless steel shell (1) and is provided with external threads (15).

4. The high-pressure high-speed stainless steel rotary joint for the chemical industry according to claim 1, wherein: two top and bottom that do not symmetric distribution in oilless bearing (2) are equallyd divide to polymer carborundum ring (8) and corrosion resistant sealing ring (9), just the surface of polymer carborundum ring (8) closely contradicts respectively at the surface of oilless bearing (2) and corrosion resistant sealing ring (9).

5. The high-pressure high-speed stainless steel rotary joint for the chemical industry according to claim 4, wherein: the inner ring surfaces of the high-molecular silicon carbide ring (8), the corrosion-resistant sealing ring (9) and the sealing gasket (10) are tightly abutted against the outer surface of the outer pipe (3).

6. The high-pressure high-speed stainless steel rotary joint for the chemical industry according to claim 1, wherein: the corrosion-resistant inner pipes (4) are communicated with the stainless steel shell (1), the connecting pipe (5) and the mounting seat (6).

7. The high-pressure high-speed stainless steel rotary joint for the chemical industry according to claim 1, wherein: a plurality of mounting holes (16) are formed in the mounting base (6).