A swivel joint device for extreme flammable and low flow

Abstract

The utility model belongs to the technical field of swivel joint, especially for a kind of for limit flammable and low flow swivel joint device, including inner ring, the outer surface of the inner ring is provided with steel ball, the outer wall of inner ring is connected with outer ring by steel ball rotation, and the fourth O-ring is installed in the connecting part of outer ring and inner ring at steel ball, and the side of outer ring is detachably connected with spin flange, the side top of spin flange is provided with leak detection hole.The utility model is provided with pressure relief detection device in the top position of spin flange leak detection hole, and pressure relief detection device can monitor pressure change, when it detects that pressure is not normal, spin flange can be opened, and the first O-ring is replaced, and the second O-ring and the third O-ring are also installed between inner ring and spin flange, the sealing property of swivel joint can be ensured, leakage is prevented, the problems, such as that 1 inch swivel joint device is prone to leakage and internal sealing ring cannot be replaced in time at present stage are solved.

Description

Technical Field

[0001] This utility model relates to the field of rotary joint technology, specifically a rotary joint device for extremely flammable and low-flow applications. Background Technology

[0002] In the chemical industry, especially in the field of extremely flammable chemicals, alkyl aluminum unloading arms are one of the main methods for transporting olefin-based cylinder chemicals. Alkyl aluminum unloading arms are equipped with rotary joints, which allow the unloading arm to rotate and adjust the direction of chemical transport. Therefore, a high-performance alkyl aluminum unloading arm is crucial. However, current alkyl aluminum unloading arms on the market have their own shortcomings: the rotary joint devices for 2-inch pipes in unloading arms are wasteful of high-risk, low-volume media, resulting in significant economic waste; the sealing devices of some 1-inch rotary joints in alkyl aluminum unloading arms fail to meet the sealing requirements for high-risk media that cannot be exposed to air, leading to low safety, easy leakage, and consequently affecting production. Therefore, this invention proposes a rotary joint device for extremely flammable, low-flow media to specifically address the above problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a rotary joint device for extremely flammable and low-flow applications. By installing a pressure relief detection device at the top of the leak detection hole of the rotary flange, the device can monitor pressure changes. When it detects an abnormal pressure value, the rotary flange can be removed and the first O-ring replaced. At the same time, a second and a third O-ring are installed between the inner ring and the rotary flange, ensuring the sealing of the rotary joint and preventing leakage. This solves the problems of easy leakage and inability to replace the internal sealing rings in a timely manner in current 1-inch rotary joint devices.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A rotary joint device for extremely flammable and low-flow applications includes an inner ring with a steel ball on its outer surface. An outer ring is rotatably connected to the outer wall of the inner ring via the steel ball. A fourth O-ring is installed at the connection point between the outer ring and the inner ring and the steel ball. A rotary flange is detachably connected to one side of the outer ring, and a leak detection hole is provided on the top side of the rotary flange.

[0006] Furthermore, a pressure relief detection device is provided at the top of the leak detection hole of the rotary flange, which is a pressure detector installed at the top of the leak detection hole of the rotary flange.

[0007] Furthermore, a first O-ring is installed between the inner ring and the rotary flange on one side of the leak detection hole.

[0008] Furthermore, a second O-ring and a third O-ring are sequentially installed between the inner ring and the rotary flange on the other side of the leak detection hole.

[0009] Furthermore, the diameter of the inner ring's internal opening is 1 inch.

[0010] Furthermore, the rotary flange is detachably assembled to one side of the outer ring by bolts.

[0011] Furthermore, the outer ring is provided with a grease nipple for adding grease to the steel ball, and a plug is fixedly connected to the grease nipple on the outer ring.

[0012] Compared with the prior art, this utility model provides a rotary joint device for extremely flammable and low-flow applications, which has the following beneficial effects:

[0013] This invention involves installing a first O-ring between the inner ring and the rotary flange. This first O-ring provides initial sealing for the rotary joint, preventing leakage. A pressure relief detection device is installed at the leak detection hole of the rotary flange. This device detects pressure changes between the inner ring and the rotary flange. When it detects an abnormal pressure value, it is necessary to check the seal of the rotary joint and whether the first O-ring is damaged or ineffective. In this invention, the rotary flange is detachably assembled to one side of the outer ring using bolts, allowing for easy removal and replacement of the first O-ring.

[0014] This invention provides a second and a third O-ring between the inner ring and the rotary flange, which serve as secondary seals to ensure the sealing between the inner ring and the rotary flange, prevent chemical leakage, and ensure the safe feeding of the 1-inch rotary joint. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1. Inner ring; 2. Outer ring; 3. Plug; 4. Grease nipple; 5. Rotary flange; 6. Pressure relief detection device; 7. First O-ring; 8. Second O-ring; 9. Third O-ring; 10. Bolt; 11. Steel ball; 12. Fourth O-ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0018] like Figure 1 As shown in the figure, an embodiment of this utility model proposes a rotary joint device for extremely flammable and low-flow applications, including an inner ring 1. The inner ring 1 is used for the transmission and flow of flammable chemicals. A steel ball 11 is provided on the outer surface of the inner ring 1. The outer wall of the inner ring 1 is rotatably connected to an outer ring 2 through the steel ball 11, thereby realizing the rotatable connection between the outer ring 2 and the inner ring 1 and adjusting the feeding direction. A fourth O-ring 12 is installed at the connection point between the outer ring 2 and the inner ring 1 and the steel ball 11. The fourth O-ring 12 can play a role in preventing leakage and preventing the leakage of grease, etc. On one side of the outer ring 2, a detachable rotary flange 5 is connected. The rotary flange 5 is a swing-open flange, which is a specific type of flange that can prevent backflow of the medium and effectively increase the precision of the rotary joint. A leak detection hole is opened on the top side of the rotary flange 5, and a pressure relief detection device 6 is provided on the top of the leak detection hole of the rotary flange 5. The leak detection hole and the pressure relief detection device 6 are used to check for leakage. If a leakage potential is found, it can be detected immediately to ensure safe use.

[0019] like Figure 1 As shown, in some embodiments, the pressure relief detection device 6 is a pressure detector installed at the top of the leak detection hole of the rotary flange 5.

[0020] It should be noted that the pressure detector is a hydraulic testing instrument that can monitor pressure changes in real time. Its model is YN60. It can display pressure changes and does not require a controller. Operators can understand the condition of the sealing rings based on the pressure changes, so as to replace them in a timely manner.

[0021] like Figure 1 As shown, in some embodiments, a first O-ring 7 is installed between the inner ring 1 and the rotary flange 5 on one side of the leak detection hole.

[0022] It should be noted that, in conjunction with the appendix Figure 1 As can be seen, the first O-ring 7 is located on one side of the leak detection hole and provides primary sealing. When the first O-ring 7 is damaged, the pressure relief detection device 6 will show an abnormality. That is, when the pressure relief detection device 6 shows an abnormality, the first O-ring 7 has been damaged and no longer has a sealing function. At this time, the first O-ring 7 can be replaced to facilitate timely replacement.

[0023] like Figure 1 As shown, in some embodiments, a second O-ring 8 and a third O-ring 9 are sequentially installed between the inner ring 1 and the rotary flange 5 on the other side of the leak detection hole.

[0024] It should be noted that the second O-ring 8 and the third O-ring 9 are located on the other side of the leak detection hole, and play a secondary sealing role. When the first O-ring 7 is damaged, the second O-ring 8 and the third O-ring 9 can still provide sealing protection for the rotary joint, ensuring the sealing performance of the rotary joint.

[0025] like Figure 1 As shown, in some embodiments, the diameter of the tube opening inside the inner ring 1 is 1 inch.

[0026] It should be noted that this solution is a 1-inch rotary joint device, which combines the advantages of both 1-inch and 2-inch rotary joints while eliminating their disadvantages, ensuring good sealing performance and avoiding waste of resources.

[0027] like Figure 1 As shown, in some embodiments, the rotary flange 5 is detachably assembled to one side of the outer ring 2 by bolts 10.

[0028] It should be noted that the bolt 10 allows the rotary flange 5 to be detachably assembled on one side of the outer ring 2, making it easy to remove and thus facilitating the replacement of the first O-ring 7.

[0029] like Figure 1 As shown, in some embodiments, the outer ring 2 is provided with a grease nipple 4 for adding grease to the steel ball 11, and a plug 3 is fixedly connected to the grease nipple 4 of the outer ring 2.

[0030] It should be noted that the grease nipple 4 is used to add grease to lubricate the steel ball 11, and the plug 3 can seal the lubricant to prevent leakage.

[0031] The working principle and usage steps of this utility model are as follows: The first O-ring 7 can achieve primary seepage prevention between the inner ring 1 and the rotary flange 5. When the first O-ring 7 is damaged, its sealing performance decreases, causing the detection result of the pressure relief detection device 6 to change. When the staff observes the abnormality of the pressure relief detection device 6, the bolt 10 can be removed, and then the rotary flange 5 can be disassembled to achieve quick replacement of the first O-ring 7. When the first O-ring 7 is damaged, its sealing performance decreases. A second O-ring 8 and a third O-ring 9 are also provided between the inner ring 1 and the rotary flange 5. The second O-ring 8 and the third O-ring 9 can play a secondary sealing role. Even if leakage occurs at the first O-ring 7, the second O-ring 8 and the third O-ring 9 can still achieve sealing protection between the inner ring 1 and the rotary flange 5, preventing leakage of the rotary joint.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rotary joint device for extremely flammable and low-flow applications, comprising an inner ring (1), characterized in that: The outer surface of the inner ring (1) is provided with a steel ball (11). The outer wall of the inner ring (1) is rotatably connected to the outer ring (2) through the steel ball (11). The outer ring (2) and the inner ring (1) are connected at the steel ball (11) with a fourth O-ring (12). A rotary flange (5) is detachably connected to one side of the outer ring (2). A leak detection hole is opened on the top side of the rotary flange (5).

2. The rotary joint device for extremely flammable and low-flow applications according to claim 1, characterized in that: A pressure relief detection device (6) is provided on the top of the leak detection hole of the rotary flange (5). The pressure relief detection device (6) is a pressure detector installed at the top of the leak detection hole of the rotary flange (5).

3. A rotary joint device for extremely flammable and low-flow applications according to claim 1, characterized in that: A first O-ring (7) is installed between the inner ring (1) and the rotary flange (5) on one side of the leak detection hole.

4. A rotary joint device for extremely flammable and low-flow applications according to claim 3, characterized in that: A second O-ring (8) and a third O-ring (9) are installed sequentially on the other side of the leak detection hole between the inner ring (1) and the rotary flange (5).

5. A rotary joint device for extremely flammable and low-flow applications according to claim 1, characterized in that: The diameter of the pipe opening inside the inner ring (1) is 1 inch.

6. A rotary joint device for extremely flammable and low-flow applications according to claim 1, characterized in that: The rotary flange (5) is detachably assembled to one side of the outer ring (2) by bolts (10).

7. A rotary joint device for extremely flammable and low-flow applications according to claim 1, characterized in that: The outer ring (2) is provided with a grease nipple (4) for adding grease to the steel ball (11), and a plug (3) is fixedly connected to the grease nipple (4) of the outer ring (2).

Images