CN218968856U

CN218968856U - Sealing structure for loading and unloading arm

Info

Publication number: CN218968856U
Application number: CN202223393241.6U
Authority: CN
Inventors: 郑辉宏; 郭伟能; 刘淑兰
Original assignee: Fujian Quansheng New Materials Co ltd
Current assignee: Fujian Quansheng New Materials Co ltd
Priority date: 2022-12-17
Filing date: 2022-12-17
Publication date: 2023-05-05
Anticipated expiration: 2032-12-17

Abstract

The application relates to a sealing structure of a loading and unloading arm, which comprises a pipeline and a sealing piece; the pipeline comprises a first pipeline and a second pipeline, and the ends of the first pipeline and the second pipeline are connected through a connecting device; the sealing piece is arranged around the pipeline and is used for sealing the connection part of the first pipeline and the second pipeline; and two ends of the sealing piece are respectively in sealing connection with the peripheral surfaces of the first pipeline and the second pipeline. The sealing piece is arranged at the rotary connecting part of the oil filling riser, so that the secondary sealing effect is achieved; thereby enhancing the sealing of the rotational connection of the loading arm.

Description

Sealing structure for loading and unloading arm

Technical Field

The application relates to the field of chemical conveying equipment, in particular to a sealing structure of a loading and unloading arm.

Background

The oil filling riser is a telescopic tube, also called fluid handling arm. The crane pipe is a special device in the fluid loading and unloading process, and is mostly used for loading and unloading liquid in the fields of petroleum and chemical industry, and medium in the pipe such as oil, water, methanol, dimethyl ether and the like.

When loading and unloading media through the crane, the worker is required to rotate the tubing at different positions of the crane to connect the joints of the crane to the truck for transporting the media.

However, in the use process of the rotating connection parts of the adjacent pipelines, the connection parts are easy to wear due to the rotation, and leakage occurs at the connection parts.

Disclosure of Invention

In order to improve the sealing property of the rotating connection part of the loading arm, the application provides a sealing structure for loading and unloading the loading arm.

The application provides a sealing structure of loading and unloading oil filling riser adopts following technical scheme:

a sealing structure for loading and unloading crane pipe comprises a pipeline and a sealing element; the pipeline comprises a first pipeline and a second pipeline, and the ends of the first pipeline and the second pipeline are connected through a connecting device; the sealing piece is arranged around the pipeline and is used for sealing the connection part of the first pipeline and the second pipeline; and two ends of the sealing piece are respectively in sealing connection with the peripheral surfaces of the first pipeline and the second pipeline.

Through adopting above-mentioned technical scheme, the connection position of first pipeline and second pipeline takes place not hard up, and when leading to the medium in the pipeline to reveal along the tiny not hard up department of connection position, the sealing member plays the sealed effect of secondary, prevents the further diffusion of medium, reduces the influence of medium leakage to the staff.

Optionally, an annular protruding piece is disposed on one side of the first pipeline, close to the second pipeline, and the protruding piece is connected with the second pipeline through a connecting rod, and a gap for the first pipeline to rotate is disposed between the protruding piece and the first pipeline; the outer surface of the first pipeline is provided with an abutting piece; when the first pipeline rotates, the abutting piece abuts against the sealing piece.

Through adopting above-mentioned technical scheme, when needs use the oil filling riser, the staff rotates first pipeline to drive the butt spare rotatory and butt in the sealing member, thereby strengthen the connection between sealing member and the protruding piece. And the connection of the sealing element and the first pipeline is cracked due to the torsion of the sealing element, so that the tightness of the connection part of the oil filling riser is enhanced.

Optionally, the abutting pieces are symmetrically arranged along the outer peripheral surface of the first pipeline.

Through adopting above-mentioned technical scheme, the butt spare of symmetry setting has improved sealing member atress homogeneity to further improve the sealed effect of sealing member.

Optionally, the first pipeline is provided with a first gasket in a penetrating manner, and the first gasket is arranged between the abutting piece and the sealing piece.

Through adopting above-mentioned technical scheme, through setting up first gasket, transmit the effort of butt spare more evenly for the sealing member to strengthen the degree of sealing of different sealing members and first pipeline.

Optionally, a spring piece and a second gasket are further arranged between the first gasket and the sealing piece; the elastic sheet is arranged between the first gasket and the second gasket.

Through adopting above-mentioned technical scheme, when the butt piece downstream, the shell fragment plays the buffering deformation effect, reduces because of first pipeline turned angle is too big for the condition emergence that the butt piece transition extrusion sealing member made the sealing member break.

Optionally, the sealing member is provided with a gas collecting bag.

By adopting the technical scheme, when the state of the medium in the crane tube after leakage is gaseous, the gas gathered forces the gas gathering bag to expand outwards, so that the joint part of the crane tube is reminded of sending leakage, and the operation needs to be stopped.

Optionally, the outer surface of the sealing member is provided with a convex line which is obliquely arranged, and the oblique direction of the convex line is consistent with the oblique direction of the convex piece.

Through adopting above-mentioned technical scheme, when the sealing member takes place to twist reverse along with the rotation of first pipeline, through setting up the burr, the sealing member of being convenient for takes place to twist reverse along the direction of burr, reduces the sealing member and takes place the dog-ear damage at the torsional in-process.

Optionally, a metal belt is further arranged between the first pipeline and the second pipeline.

By adopting the technical scheme, the metal belt plays a role in transferring charges, reduces charge accumulation and spark generation to influence normal loading and unloading operation of the loading arm.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sealing piece is arranged at the rotary connecting part of the oil filling riser to play a secondary sealing role; thereby enhancing the tightness of the rotary connection part of the oil filling riser;

2. by arranging the abutting piece, the connection strength of the sealing piece and the first pipeline is enhanced when the oil filling riser works, so that the tightness of the connection part of the oil filling riser is further improved;

3. through setting up the collection gasbag, the staff of being convenient for perceives the condition that the oil filling riser appears revealing, and then takes measures to reduce the emergence of bigger harm as far as possible.

Drawings

Fig. 1 is a schematic view showing the sealing structure in embodiment 1.

Fig. 2 is a schematic diagram showing the sealing structure in embodiment 2.

Fig. 3 is a schematic diagram showing the positional relationship of embossments in embodiment 2.

Fig. 4 is a schematic view showing the sealing structure in embodiment 3.

Fig. 5 is an enlarged view at a in fig. 4.

Fig. 6 is a schematic view showing the sealing structure in embodiment 4.

Fig. 7 is a schematic view showing the sealing structure in embodiment 5.

Reference numerals illustrate: 1. a pipe; 101. a first pipe; 102. a second pipe; 2. a seal; 21. a relief; 3. a pipe fastener; 4. a projection; 5. a connecting rod; 6. a gap; 7. an abutment; 8. a first gasket; 9. a spring plate; 10. a second gasket; 11. an air collecting bag; 12. a first through hole; 13. a metal strip.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-7.

Example 1:

the embodiment of the application discloses a sealing structure for loading and unloading crane pipes. Referring to fig. 1, the sealing structure of the loading arm comprises a pipeline 1 and a sealing member 2. The pipeline 1 comprises a first pipeline 101 and a second pipeline 102; the first pipe 101 is rotatably connected to the second pipe 102 via a connecting device to change the relative position of the loading arm to be connected to the loading truck for loading and unloading a desired medium. In this embodiment, the medium transported by the crane is dimethyl ether.

Dimethyl ether is colorless and odorous inflammable gas at normal temperature, and is processed into liquid state under high pressure and low temperature and then transported and loaded and unloaded by a crane pipe.

The sealing member 2 may be a hollow tubular structure made of Polyethylene (PE) material, and the sealing member 2 is sleeved on the outer circumferential surface of the first pipe 101 and the connection portion of the first pipe 101. Both ends of the sealing member 2 can be sealingly mounted using pipe fasteners 3. And then the joint of the sealing element 2 and the pipeline 1 is coated with an adhesive to further improve the sealing effect.

Example 2

This embodiment 2 differs from embodiment 1 in that:

referring to fig. 2, in order to further enhance the sealing effect of the sealing member 2, an inclined annular protrusion 4 is disposed at one end of the first pipe 101 adjacent to the second pipe 102, the annular protrusion 4 is connected to the second pipe 102 through a connecting rod 5, and a gap 6 is left between the protrusion 4 and the first pipe 101 for the first pipe 101 to rotate.

The outer surface of the first pipe 101 is provided with an abutment 7. When the rotation direction of the first pipe 101 is consistent with the inclination direction of the protruding member 4, the abutting member 7 rotates along with the first pipe 101 and abuts against the sealing member 2, so that the sealing member 2 is forced to move towards the protruding member 4, and the sealing degree between the sealing member 2 and the protruding member 4 is enhanced.

The abutments 7 are symmetrically arranged along the outer peripheral surface of the first pipe 101. The stress uniformity of the sealing element 2 is improved, so that the sealing effect of the sealing element 2 is further improved.

Referring to fig. 3, the outer surface of the sealing member 2 is provided with ridges 21 obliquely arranged, and the spiral direction of the ridges 21 coincides with the oblique direction of the protruding member 4.

Example 3

This embodiment 3 differs from embodiment 2 in that:

referring to fig. 4 and 5, when the first pipe 101 rotates, the abutment 7 is pressed against the seal 2. In order to reduce the abrasion of the abutting piece 7 to the sealing piece 2, the embodiment is further provided with a first gasket 8, a spring piece 9 and a second gasket 10 between the abutting piece 7 and the sealing piece 2.

The first gasket 8 contacts with the abutting piece 7, and the second gasket 10 abuts against the sealing piece 2, so that the abutting piece 7 is arranged between the first gasket 8 and the second gasket 10, and a space for buffering deformation is provided for the abutting piece 7 to press the sealing piece 2.

Example 4

This embodiment 4 differs from embodiment 2 in that:

referring to fig. 6, the sealing member 2 is provided with a first through hole 12, the second through hole is provided with a gas collecting bag 11, the gas collecting bag 11 covers the first through hole 12, and a bag opening of the gas collecting bag 11 is adhered to the inside of the sealing member 2, so that disturbance of external factors to a connection part of the gas collecting bag 11 and the sealing member 2 is reduced.

The air collecting bag 11 may be made of rubber with a certain deformability. When the connecting part of the oil filling riser loosens to cause leakage of the dimethyl ether, the leaked dimethyl ether can fill and press the air collecting bag 11 to expand outwards. Thereby reminding the staff that the connecting part of the loading arm leaks and stopping the loading and unloading operation.

Example 5

This embodiment 5 differs from embodiment 1 in that:

referring to fig. 7, a metal strip 13 is further disposed between the first pipe 101 and the second pipe 102, and the metal strip 13 may be a copper wire, an iron wire, or the like having a certain flexibility. The metal belt 13 is used for conducting charges between the first pipeline 101 and the second pipeline 102 in time, so that charge accumulation and discharge are reduced, and safety is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A sealing structure for loading and unloading arm is characterized in that: comprises a pipeline (1) and a sealing piece (2); the pipeline (1) comprises a first pipeline (101) and a second pipeline (102), and the ends of the first pipeline (101) and the second pipeline (102) are connected through a connecting device; the sealing element (2) is arranged around the pipeline (1) and is used for sealing the connection part of the first pipeline (101) and the second pipeline (102); the two ends of the sealing piece (2) are respectively connected with the peripheral surfaces of the first pipeline (101) and the second pipeline (102) in a sealing way.

2. The loading arm sealing structure of claim 1, wherein: an annular protruding piece (4) which is obliquely arranged is arranged on one side, close to the second pipeline (102), of the first pipeline (101), the protruding piece (4) is connected with the second pipeline (102) through a connecting rod (5), and a gap (6) for the first pipeline (101) to rotate is formed between the protruding piece (4) and the first pipeline (101); an abutting piece (7) is arranged on the outer surface of the first pipeline (101); when the first pipeline (101) rotates, the abutting piece (7) abuts against the sealing piece (2).

3. The loading arm sealing structure according to claim 2, wherein: the abutting pieces (7) are symmetrically arranged along the outer peripheral surface of the first pipeline (101).

4. The loading arm sealing structure according to claim 2, wherein: the first pipeline (101) is provided with a first gasket (8) in a penetrating mode, and the first gasket (8) is arranged between the abutting piece (7) and the sealing piece (2).

5. The loading arm sealing structure of claim 4, wherein: an elastic sheet (9) and a second gasket (10) are also arranged between the first gasket (8) and the sealing piece (2); the elastic sheet (9) is arranged between the first gasket (8) and the second gasket (10).

6. The loading arm sealing structure of claim 1, wherein: the sealing element (2) is provided with an air collecting bag (11).

7. The loading arm sealing structure according to claim 2, wherein: the outer surface of the sealing piece (2) is provided with a convex line (21) which is obliquely arranged, and the oblique direction of the convex line (21) is consistent with the oblique direction of the protruding piece (4).

8. The loading arm sealing structure of claim 1, wherein: a metal belt (13) is arranged between the first pipeline (101) and the second pipeline (102).