CN210770832U - Rotary joint device for liquid loading and unloading arm - Google Patents
Rotary joint device for liquid loading and unloading arm Download PDFInfo
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- CN210770832U CN210770832U CN201921191632.5U CN201921191632U CN210770832U CN 210770832 U CN210770832 U CN 210770832U CN 201921191632 U CN201921191632 U CN 201921191632U CN 210770832 U CN210770832 U CN 210770832U
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Abstract
The utility model discloses a rotary joint device for a liquid loading and unloading arm, which comprises a first flange, an inner ring, a steel ball, a second flange, a sealing ring, an outer ring and a combined sealing device; the first flange and the second flange are arranged oppositely, an inner ring is arranged between the first flange and the second flange, and an outer ring is arranged on the inner ring; the utility model has the characteristics of safe and reliable performance, long service life, small rotating torque and convenient maintenance, the inner ring and the outer ring realize relative rotation through the connection of steel balls, and a combined elastic body is used between the inner ring and the flange to realize sealing; the rotary joint device of the utility model has a multi-channel redundant sealing design, and can monitor the effectiveness of sealing through the leakage detecting hole, thereby greatly improving the safety and reliability of the product, and especially having good sealing performance on the gas volatilized by the volatile medium; just the utility model discloses the rotary joint device has adopted two components of a whole that can function independently flange, the maintenance of being convenient for is changed.
Description
Technical Field
The utility model relates to a rotary seal technical field, especially a rotary joint device for liquid loading arm.
Background
In the process of loading and unloading liquid by the liquid loading and unloading arm, the rotary joint is a key device and is required to realize sealing under the condition of rotation. At present, the unipartite flange is commonly used in China, the inner ring is directly welded on the pipeline, and the maintenance and the replacement are difficult. The sealing ring generally adopts single-channel PTFE sealing ring, and is unsatisfactory to the gas seal effect, is more sensitive to medium granular impurity, only seals once, just takes place to reveal in case this is sealed to become invalid, and the reliability is lower relatively.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be convenient for maintain, sealed effectual, the high rotary joint device who is used for liquid loading arm of reliability.
Realize the utility model discloses the technical solution of purpose does:
a rotary joint device for a liquid loading arm is characterized by comprising a first flange, an inner ring, a steel ball, a second flange, a sealing ring, an outer ring and a combined sealing device; the first flange and the second flange are arranged oppositely, an inner ring is arranged between the first flange and the second flange, and an outer ring is arranged on the inner ring; the first flange is fixedly connected with the inner ring, a sealing ring is arranged between the first flange and the inner ring, and the sealing ring is clamped between the first flange and the inner ring to play a sealing role; the second flange is fixedly connected with the outer ring, a sealing ring is arranged between the second flange and the outer ring, and the sealing ring is clamped between the second flange and the outer ring to play a sealing role; a steel ball is arranged between the inner ring and the outer ring, and the inner ring and the outer ring can realize relative rotation through the connection of the steel ball; and a combined sealing device is arranged between the second flange and the inner ring, and is clamped between the second flange and the inner ring to play a sealing role.
Preferably, the combined sealing device comprises a stainless steel back pressure ring, an elastomer main sealing ring, a stainless steel standby ring and an elastomer auxiliary sealing ring; the outside of stainless steel backing clamping ring has set gradually elastomer main seal circle, stainless steel spare ring, elastomer secondary seal circle.
Preferably, the outer ring is provided with a plug and a grease nipple, and the plug and the grease nipple are respectively positioned right above the corresponding steel ball.
Preferably, the second flange is provided with a leakage detection hole, and a leakage detection plugging wire is arranged on the leakage detection hole.
Preferably, the first flange is fixedly connected with the inner ring through a bolt, and the second flange is fixedly connected with the outer ring through a bolt.
Preferably, the first flange and the second flange are fixedly connected with an external pipeline through welding.
Compared with the prior art, the utility model, it is showing the advantage:
the utility model has the characteristics of safe and reliable performance, long service life, small rotating torque and convenient maintenance, the inner ring and the outer ring realize relative rotation through the connection of steel balls, and a combined elastic body is used between the inner ring and the flange to realize sealing; the rotary joint device of the utility model has a multi-channel redundant sealing design, and can monitor the effectiveness of sealing through the leakage detecting hole, thereby greatly improving the safety and reliability of the product, and especially having good sealing performance on the gas volatilized by the volatile medium; just the utility model discloses the rotary joint device has adopted two components of a whole that can function independently flange, the maintenance of being convenient for is changed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the description of the embodiments or the prior art will be briefly introduced 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 creative efforts.
Fig. 1 is a schematic structural view of a rotary joint device for a liquid handling arm according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely 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 work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1, a rotary joint device for a liquid handling arm comprises a first flange 1, a bolt 2, an inner ring 3, a steel ball 4, a plug 5, a grease nipple 6, a second flange 7, a leak detection plug wire 8, a seal ring 9, an outer ring 14 and a combined sealing device; the first flange 1 and the second flange 7 are arranged oppositely, an inner ring 3 is arranged between the first flange 1 and the second flange 7, and an outer ring 14 is arranged on the inner ring 3; the first flange 1 is fixedly connected with the inner ring 3 through a bolt 2, a sealing ring 9 is arranged between the first flange 1 and the inner ring 3, and the sealing ring 9 is clamped between the first flange 1 and the inner ring 3 to play a sealing role; the second flange 7 is fixedly connected with the outer ring 14 through the bolt 2, a sealing ring 9 is arranged between the second flange 7 and the outer ring 14, and the sealing ring 9 is clamped between the second flange 7 and the outer ring 14 to play a sealing role; a leakage detection plugging wire 8 is arranged on the leakage detection hole; a steel ball 4 is arranged between the inner ring 3 and the outer ring 14, and the inner ring 3 and the outer ring 14 can realize relative rotation through the connection of the steel ball 4; the outer ring 14 is provided with a plug 5 and a grease nipple 6, and the plug 5 and the grease nipple 6 are respectively positioned right above the corresponding steel ball 4; a combined sealing device is arranged between the second flange 7 and the inner ring 3, and the combined sealing device is clamped between the second flange 7 and the inner ring 3 to play a sealing role; the combined sealing device comprises a stainless steel back pressure ring 10, an elastomer main sealing ring 11, a stainless steel standby ring 12 and an elastomer auxiliary sealing ring 13; the outer side of the stainless steel back pressure ring 10 is sequentially provided with an elastomer main sealing ring 11, a stainless steel standby ring 12 and an elastomer auxiliary sealing ring 13; the first flange 1 and the second flange 7 are fixedly connected with an external pipeline through welding.
The utility model is used for the theory of operation of the rotary joint device of liquid loading arm:
the first flange and the inner ring are connected into a whole through bolts, and the outer ring and the second flange are connected into a whole through bolts; the inner ring and the outer ring are connected through balls to realize relative rotation, the inner ring and the second flange form main seal through a combined sealing device, the sealing ring and the combined sealing device form multi-seal together, and the elasticity of the elastic body is used for compensating abrasion; a leakage detection hole is formed in the second flange, and when a medium seeps out of the leakage detection hole, the first sealing is proved to be invalid, so that a user is reminded of preparing to replace the sealing ring.
The utility model discloses a rotary joint device for liquid loading arm has safe and reliable, longe-lived, turning moment is little, the convenient characteristics are maintained in the maintenance. The utility model discloses the rotary joint device has the sealed design of multichannel redundancy to can monitor sealed validity through the leak hunting pore pair, very big improvement the security and the reliability of product, especially also have fine sealing performance to the gas that the volatile medium volatilizees.
The above-mentioned embodiments further explain the technical problems, technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A rotary joint device for a liquid loading and unloading arm is characterized by comprising a first flange (1), an inner ring (3), a steel ball (4), a second flange (7), a sealing ring (9), an outer ring (14) and a combined sealing device; the first flange (1) and the second flange (7) are arranged oppositely, an inner ring (3) is arranged between the first flange (1) and the second flange (7), and an outer ring (14) is arranged on the inner ring (3); the first flange (1) is fixedly connected with the inner ring (3), a sealing ring (9) is arranged between the first flange (1) and the inner ring (3), and the sealing ring (9) is clamped between the first flange (1) and the inner ring (3) to play a sealing role; the second flange (7) is fixedly connected with the outer ring (14), a sealing ring (9) is arranged between the second flange (7) and the outer ring (14), and the sealing ring (9) is clamped between the second flange (7) and the outer ring (14) to play a sealing role; a steel ball (4) is arranged between the inner ring (3) and the outer ring (14), and the inner ring (3) and the outer ring (14) are connected through the steel ball (4) to realize relative rotation; and a combined sealing device is arranged between the second flange (7) and the inner ring (3), and the combined sealing device is clamped between the second flange (7) and the inner ring (3) to play a sealing role.
2. A swivel joint arrangement for a liquid handling arm according to claim 1, wherein the combined sealing arrangement comprises a stainless steel back pressure ring (10), an elastomer primary sealing ring (11), a stainless steel back up ring (12) and an elastomer secondary sealing ring (13); the outer side of the stainless steel back pressure ring (10) is sequentially provided with an elastomer main sealing ring (11), a stainless steel standby ring (12) and an elastomer auxiliary sealing ring (13).
3. A swivel joint assembly for a fluid handling arm as claimed in claim 1, wherein the outer race (14) is provided with a plug (5) and a grease nipple (6), the plug (5) and the grease nipple (6) being located directly above the corresponding ball (4).
4. A swivel joint assembly for a fluid handling arm as claimed in claim 1, wherein the second flange (7) is provided with a leak detection hole, and a leak detection plug wire (8) is provided on the leak detection hole.
5. A swivel joint arrangement for a fluid handling arm according to claim 1, c h a r a c t e r i z e d in that the first flange (1) is fixedly connected to the inner ring (3) by means of bolts (2) and the second flange (7) is fixedly connected to the outer ring (14) by means of bolts (2).
6. A swivel joint arrangement for a liquid handling arm according to claim 1, c h a r a c t e r i z e d in that the first flange (1) and the second flange (7) are both fixedly connected to an external pipe by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921191632.5U CN210770832U (en) | 2019-07-26 | 2019-07-26 | Rotary joint device for liquid loading and unloading arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921191632.5U CN210770832U (en) | 2019-07-26 | 2019-07-26 | Rotary joint device for liquid loading and unloading arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210770832U true CN210770832U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921191632.5U Active CN210770832U (en) | 2019-07-26 | 2019-07-26 | Rotary joint device for liquid loading and unloading arm |
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| Country | Link |
|---|---|
| CN (1) | CN210770832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370542A (en) * | 2021-12-31 | 2022-04-19 | 河北中科朗博环保科技有限公司 | Be applied to revolution mechanic on slag hot stuffy tank gas collecting pipeline |
-
2019
- 2019-07-26 CN CN201921191632.5U patent/CN210770832U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370542A (en) * | 2021-12-31 | 2022-04-19 | 河北中科朗博环保科技有限公司 | Be applied to revolution mechanic on slag hot stuffy tank gas collecting pipeline |
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