Internal expansion type oil drainage pipeline leakproof device
The internal expansion oil discharge pipeline leak preventer drives the nylon cylinder to expand and seal the oil pipeline through the cooperation of the screw rod and nut, solving the problem of dripping during crude oil transportation, achieving environmental protection and efficiency improvement.
Patent Information
- Application Number
- CN202422773156.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-14
AI Technical Summary
Leakage from oil pipelines during crude oil transportation causes energy waste and environmental pollution. Existing leakage prevention measures are impractical or pose safety hazards, are labor-intensive, and have high processing costs.
An internal expansion type oil drain line leak preventer is used. Through the coordinated use of a screw rod, a round gasket and a nut, the nylon cylinder moves downward in the circular cavity of the nitrile cylinder. The pushing force is applied to expand the nitrile cylinder and seal the inside of the oil pipe. Combined with the design of a silicone sealing head and a soft-mouth silicone bowl, a sealing effect is achieved.
Effectively prevent crude oil leakage, reduce processing costs, improve crude oil recovery efficiency, simplify operations, reduce labor intensity, improve work efficiency, and ensure safety and convenience.
Smart Images

Figure CN223331388U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of crude oil transportation, in particular to an internal expansion type oil discharge pipeline leakage preventer. Background Art
[0002] During the crude oil transfer process, residual crude oil drips from the drainpipe, wasting energy. Furthermore, the high frequency of oil transportation in some plant areas increases the amount of crude oil leaking from the drainpipe. Currently, hanging barrels are used to catch the leaking crude oil. However, due to the high altitude and strong winds, these barrels are often blown away or shifted. During periods of continuous rain, barrels can overfill and leak. Using cotton yarn to plug the leaks is also unsightly and impractical, resulting in continuous crude oil leakage. Therefore, cleaning up the leaking oil has become a daily routine at the plant. This process presents numerous safety risks and is labor-intensive (due to the frozen ground in winter). Storage and transportation are difficult, and disposal costs are prohibitive. Utility Model Content
[0003] The purpose of the present invention is to provide an internal expansion type oil drain line leak preventer to solve the problems and defects raised by the above-mentioned background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an internal expansion oil discharge pipeline leak preventer, comprising an iron sheet, a nitrile cylinder is placed on the top of the iron sheet, a circular cavity is opened on the top of the nitrile cylinder, a nylon cylinder is sleeved in the circular cavity, grease is applied between the nitrile cylinder and the nylon cylinder, the iron sheet, the nitrile cylinder and the nylon cylinder are all provided with mounting holes, a screw rod is provided in the mounting hole, two circular gaskets are sleeved on the outer side of the screw rod, the two circular gaskets are located at the top and bottom of the nylon cylinder, and also include nuts A, B and C threadedly installed on the screw rod, nut B is fixedly installed on the bottom outer wall of the iron sheet, a silicone sealing head is sleeved on the outer wall of the nitrile cylinder, a soft oral silicone bowl is provided on the top of the silicone sealing head, the soft oral silicone bowl is provided with an exhaust hole, a fixed ring block is fixedly installed on the bottom of the iron sheet, the fixed ring block is sleeved with an iron chain, and the iron chain is sleeved with a clamp.
[0005] Preferably, four screws A are threadedly mounted on the iron sheet and the bottom of the nitrile cylinder, and the four screws A are arranged in a circular array.
[0006] Preferably, the bottom of the soft oral silicone bowl and the top of the silicone sealing head are threadedly mounted with screws B.
[0007] Preferably, welding agent is applied between the iron sheet and the nitrile cylinder, and between the nitrile cylinder and the silicone sealing head.
[0008] Preferably, a circular hollow tube is fixedly mounted on one end of the screw rod, and sealing caps are sleeved on both ends of the circular hollow tube to facilitate the control of the rotation of the screw rod.
[0009] Preferably, an oil pipe is provided on the outside of the iron sheet, the nitrile cylinder, the silicone sealing head and the soft oral silicone bowl, and the clamp is sleeved on the outer wall of the oil pipe.
[0010] Preferably, a left-loose-right-tight identification plate is provided at the bottom of the iron sheet, and the left-loose-right-tight identification plate is sleeved on the screw A to facilitate control of the tightness of the leak preventer.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] The internal expansion type oil discharge pipeline leak preventer, through the coordinated use of a screw rod, a round gasket, a nut A, a nut B, and a nut C, can drive the nylon cylinder to move downward in the circular cavity of the nitrile cylinder, so that the nylon cylinder exerts an outward pushing force on the nitrile cylinder, driving the nitrile cylinder to deform and expand outward, and can clamp the nitrile cylinder on the inner side of the oil pipe to seal the oil pipe, thereby protecting the environment and preventing pollution; reducing costs and increasing efficiency, reducing the cost of oil and soil processing, and improving crude oil recovery efficiency; simple, safe and convenient operation; reducing labor intensity, improving work efficiency, and releasing labor. When the leak preventer is used in summer, the temperature inside the oil pipe rises and the pressure inside the pipe increases. The soft-mouth silicone bowl of the leak preventer will be pushed backward, and the gas will be discharged from the screw to relieve the pressure inside the oil pipe. Moreover, during the installation process of the leak preventer, the soft-mouth silicone bowl of the leak preventer can also push the crude oil on the inner wall of the oil pipe outlet into the deep of the oil pipe. When the leak preventer is installed in the oil pipe, it drives the leak preventer to better contact with the inner wall to achieve a better sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0014] Figure 1 It is a structural diagram of the utility model;
[0015] Figure 2 for Figure 1 Schematic diagram of the structure on the other side;
[0016] Figure 3 This is a schematic diagram of the structure of the inner side of the oil pipe of the utility model;
[0017] Figure 4 This is a schematic structural diagram of the nylon cylinder of the utility model;
[0018] Figure 5 It is a cross-sectional view of the nitrile cylinder of the utility model.
[0019] Figure numerals: 1. Iron sheet; 2. Nitrile cylinder; 3. Silicone sealing head; 4. Soft oral silicone bowl; 5. Nylon cylinder; 6. Screw; 7. Round gasket; 8. Nut A; 9. Round empty tube; 10. Sealing cap; 11. Fixed ring block; 12. Iron chain; 13. Clamp; 14. Oil pipe; 15. Left loose and right tight identification plate; 16. Screw A; 17. Nut B; 18. Nut C; 19. Screw B. DETAILED DESCRIPTION
[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.
[0021] See also Figure 1-5 The utility model provides a technical solution: an internal expansion type oil discharge pipeline leak preventer, comprising an iron sheet 1, a nitrile cylinder 2 is placed on the top of the iron sheet 1, a circular cavity is opened on the top of the nitrile cylinder 2, a nylon cylinder 5 is sleeved in the circular cavity, grease is applied between the nitrile cylinder 2 and the nylon cylinder 5, the iron sheet 1, the nitrile cylinder 2, and the nylon cylinder 5 are all provided with mounting holes, a screw rod 6 is provided in the mounting hole, two round gaskets 7 are sleeved on the outer side of the screw rod 6, and the two round gaskets 7 are located in the nylon cylinder. The top and bottom of the column 5 also include nut A8, nut B17, and nut C18 threadedly installed on the screw rod 6. Nut B17 is fixedly installed on the bottom outer wall of the iron sheet 1, and is sleeved on the outer wall of the nitrile cylinder 2. The top of the silicone sealing head 3 is provided with a soft oral silicone bowl 4, and the soft oral silicone bowl 4 is provided with an exhaust hole. A fixed ring block 11 is fixedly installed on the bottom of the iron sheet 1, and the fixed ring block 11 is sleeved with an iron chain 12, and the iron chain 12 is sleeved with a clamp 13.
[0022] Furthermore, four screws A16 are installed on the bottom threads of the iron sheet 1 and the nitrile cylinder 2, and the four screws A16 are arranged in a ring array.
[0023] Furthermore, the bottom of the soft oral silicone bowl 4 and the top of the silicone sealing head 3 are threadedly mounted with screws B19.
[0024] Furthermore, welding agent is applied between the iron sheet 1 and the nitrile cylinder 2, and between the nitrile cylinder 2 and the silicone sealing head 3.
[0025] Furthermore, a circular hollow tube 9 is fixedly installed at one end of the screw rod 6, and sealing caps 10 are provided at both ends of the circular hollow tube 9 to facilitate the control of the rotation of the screw rod 6. The circular hollow tube 9 is manually twisted, and the circular hollow tube 9 drives the screw rod 6 and the nylon cylinder 5 to rotate. The rotation of the screw rod 6 drives the screw rod 6 to descend on the inner side of the nut B17, and the descent of the screw rod 6 drives the nylon cylinder 5 to descend, so that the nylon cylinder 5 moves downward in the circular cavity of the nitrile cylinder 2, so that the nylon cylinder 5 exerts an outward pushing force on the nitrile cylinder 2, driving the nitrile cylinder 2 to deform and expand outward, and can clamp the nitrile cylinder 2 on the inner side of the oil pipe 14, sealing the oil pipe 14, thereby protecting the environment and preventing pollution; reducing costs and increasing efficiency, reducing the processing costs of oil and soil, and improving the efficiency of crude oil recovery; simple operation, safe and convenient; reducing labor intensity, improving work efficiency, and releasing labor.
[0026] Furthermore, an oil pipe 14 is provided on the outside of the iron sheet 1 , the nitrile cylinder 2 , the silicone sealing head 3 , and the soft oral silicone bowl 4 , and the clamp 13 is sleeved on the outer wall of the oil pipe 14 .
[0027] Furthermore, a left-loose-right-tight identification plate 15 is provided at the bottom of the iron sheet 1, and the left-loose-right-tight identification plate 15 is sleeved on the screw A16 to facilitate control of the tightness of the leak preventer.
[0028] Working principle: The device is set on the oil pipe 14 through the clamp 13, iron chain 12, and fixed ring block 11, and then the iron sheet 1, nitrile cylinder 2, silicone sealing head 3, and soft oral silicone bowl 4 are manually inserted into the inner side of the oil pipe 14. By manually twisting the circular empty tube 9, the circular empty tube 9 drives the screw rod 6 and the nylon cylinder 5 to rotate. The rotation of the screw rod 6 drives the screw rod 6 to descend on the inner side of the nut B17. The descent of the screw rod 6 drives the nylon cylinder 5 to descend, so that the nylon cylinder 5 moves downward in the circular cavity of the nitrile cylinder 2, so that the nylon cylinder 5 exerts an outward pushing force on the nitrile cylinder 2, driving the nitrile cylinder 2 to deform and expand outward, and can stick the nitrile cylinder 2 on the inner side of the oil pipe 14, thereby sealing the inner side of the oil pipe 14.
[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. An internal expansion type oil discharge pipeline leak preventer, comprising an iron sheet (1), a nitrile cylinder (2) is placed on the top of the iron sheet (1), a circular cavity is opened on the top of the nitrile cylinder (2), a nylon cylinder (5) is sleeved in the circular cavity, grease is applied between the nitrile cylinder (2) and the nylon cylinder (5), the iron sheet (1), the nitrile cylinder (2), and the nylon cylinder (5) are all opened with mounting holes, a screw rod (6) is arranged in the mounting hole, two circular gaskets (7) are sleeved on the outer side of the screw rod (6), and the two circular gaskets (7) are located at the top and bottom of the nylon cylinder (5), characterized in that: Also includes: Nut A (8), nut B (17), and nut C (18) are threadedly mounted on the screw rod (6), and nut B (17) is fixedly mounted on the bottom outer wall of the iron sheet (1); A silicone sealing head (3) is sleeved on the outer wall of the nitrile cylinder (2), a soft oral silicone bowl (4) is provided on the top of the silicone sealing head (3), and an exhaust hole is opened in the soft oral silicone bowl (4); A fixed ring block (11) is fixedly mounted on the bottom of the iron sheet (1); the fixed ring block (11) is sleeved with an iron chain (12); and the iron chain (12) is sleeved with a hoop (13).
2. The internal expansion type oil drain line leak preventer according to claim 1, characterized in that: The iron sheet (1) and the bottom thread of the butyl cylinder (2) are threadedly mounted with four screws A (16), and the four screws A (16) are arranged in a ring array.
3. The internal expansion type oil drain line leak preventer according to claim 2, characterized in that: The bottom of the soft oral silicone bowl (4) and the top of the silicone sealing head (3) are threadedly mounted with screws B (19).
4. The internal expansion type oil drain line leak preventer according to claim 3, characterized in that: Welding agent is applied between the iron sheet (1) and the nitrile cylinder (2), and between the nitrile cylinder (2) and the silicone sealing head (3).
5. The internal expansion type oil drain line leak preventer according to claim 4, characterized in that: A circular hollow tube (9) is fixedly mounted on one end of the screw rod (6), and sealing caps (10) are sleeved on both ends of the circular hollow tube (9).
6. The internal expansion type oil drain line leak preventer according to claim 5, characterized in that: An oil pipe (14) is provided on the outside of the iron sheet (1), the nitrile cylinder (2), the silicone sealing head (3), and the soft oral silicone bowl (4), and a clamp (13) is sleeved on the outer wall of the oil pipe (14).
7. The internal expansion type oil drain line leak preventer according to claim 6, characterized in that: A left-loose-right-tight identification plate (15) is provided at the bottom of the iron sheet (1), and the left-loose-right-tight identification plate (15) is sleeved on the screw A (16).