Pressure container with leakage-proof connector

By designing the upper and lower housing components, and combining the screw slider limit block and sealing ring, the gas leakage problem caused by pressure vessel interface wear was solved, achieving a tight connection and intuitive gas leakage detection.

CN223868751UActive Publication Date: 2026-02-03SHENGLI OILFIELD XIRUN PETROLEUM ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520799485.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-02-03
Estimated Expiration
2035-04-25

AI Technical Summary

Technical Problem

The interfaces and connecting pipes of existing pressure vessels are connected by threads, which are prone to wear and tear after repeated installation and disassembly, resulting in gaps and gas leakage.

Method used

The system uses an upper and lower housing assembly, with a screw driving a slider and a limit block to ensure a tight connection between the interface pipe and the connecting pipe. It is also equipped with a detection mechanism to observe gas leaks and uses sealing rings and positioning grooves to improve sealing performance.

Benefits of technology

It effectively prevents gas leakage, is easy to install and disassemble, has an intuitive testing method, reduces wear, and improves the sealing and reliability of connections.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223868751U_ABST
    Figure CN223868751U_ABST
Patent Text Reader

Abstract

The utility model belongs to the field of pressure vessels, particularly relates to a pressure vessel with a leakproof connector, and aims to solve the problems that the connectors and connecting pipelines of a plurality of existing pressure vessels are in threaded connection, the connectors and the connecting pipelines are easy to cause structural abrasion to generate gaps after being mounted and dismounted for multiple times, and further gas leakage is caused, the following scheme is provided: the pressure vessel comprises a tank body, the top end of the tank body fixedly communicates with a connector pipe, one end of the connector pipe is sleeved with a connecting pipe, a first fixing ring is fixedly arranged on the outer wall of the connector pipe, a second fixing ring is fixedly arranged on the outer wall of the connecting pipe, and a mounting assembly is arranged between the connector pipe and the connecting pipe in a sleeving mode; the mounting assembly comprises an upper shell and a lower shell, abrasion can be reduced, gas leakage can be prevented, the connecting position is wrapped to provide protection, mounting and dismounting are easy and convenient, people can judge the gas leakage condition by observing whether the display block stretches out or not in the assembling and using process, and the detection method is simple and visual.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel technology, and in particular to a pressure vessel with leak-proof interfaces. Background Technology

[0002] Pressure vessels are sealed devices that can withstand a certain pressure. They are widely used in industrial fields such as chemical, petroleum, energy, pharmaceutical, food, and aerospace to complete physical or chemical reactions, heat transfer, mass transfer, separation, storage and other processes.

[0003] In the existing technology, many pressure vessel interfaces and connecting pipes are connected by threads. After repeated installation and disassembly, structural wear can easily lead to gaps, which in turn can cause gas leakage.

[0004] Therefore, we propose a pressure vessel with leak-proof interfaces. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where many pressure vessels use threaded connections for their interfaces and connecting pipes. Repeated installation and disassembly can easily lead to structural wear and gaps, resulting in gas leakage. Therefore, this invention proposes a pressure vessel with leak-proof interfaces.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A leak-proof pressure vessel, comprising:

[0008] The tank body has an interface pipe fixedly connected to its top end. A connecting pipe is sleeved on one end of the interface pipe. A first fixing ring is fixed on the outer wall of the interface pipe, and a second fixing ring is fixed on the outer wall of the connecting pipe. An installation assembly is sleeved between the interface pipe and the connecting pipe.

[0009] The mounting assembly includes an upper housing and a lower housing. The first fixing ring and the second fixing ring are both located inside the upper housing and the lower housing. A slider is slidably connected to one side of the inner wall of the lower housing. A push block is fixed on one side of the slider. The push block and the second fixing ring abut against each other. A screw is rotatably passed through one side of the lower housing. The screw thread passes through the slider.

[0010] A connecting mechanism is provided between the upper shell and the lower shell for connecting the upper shell and the lower shell;

[0011] The surface of the upper housing is equipped with a detection mechanism for detecting whether gas is leaking.

[0012] In one possible design, the connecting mechanism includes a connecting block and a limiting block. The connecting block is fixed to one inner wall of the upper housing, and the limiting block is fixed to the surface of the slider. The limiting block and the connecting block cooperate with each other.

[0013] In one possible design, the detection mechanism includes a detection tube that is fixedly inserted through the surface of the upper housing and is connected to the interior of the upper housing. A display block is slidably connected to the inner wall of the detection tube. The surfaces of the detection tube and the display block are flush with the surface of the upper housing. A tension spring is fixed between the bottom of the display block and the bottom inner wall of the detection tube. A stop block is fixed to the inner wall of the detection tube, and the display block and the stop block abut against each other. A pressure relief groove is provided at the bottom of the outer wall of the display block.

[0014] In one possible design, a first annular sealing ring is fixed to one side of the inner wall of the connecting pipe, and an annular sealing groove is opened on the inner wall of the connecting pipe. A second sealing ring is fixed in the sealing groove. Both the first and second sealing rings abut against the interface pipe. Sealing grooves are opened on the sides of the upper and lower housings that are close to each other, and a third sealing ring is fixed in both sealing grooves.

[0015] In one possible design, two first positioning blocks are fixed on the outer wall of the interface tube, and two first positioning grooves are opened on one side of the connecting tube, with the first positioning blocks and the first positioning grooves cooperating with each other.

[0016] In one possible design, two second positioning grooves are provided on one side of the first fixing ring, and two second positioning blocks are fixed on the inner wall of one side of both the upper and lower housings, with the second positioning blocks cooperating with the second positioning grooves.

[0017] In this application, during assembly, the first positioning block and the first positioning groove are aligned, and the connecting tube is sleeved on one end of the interface tube. Then, the second positioning block and the second positioning groove are aligned, and the upper and lower housings are sleeved on the outside of the interface tube and the connecting tube. Then, the screw is rotated by hand or tool, and the screw drives the slider to slide. The slider drives the limiting block to slide, so that the limiting block and the connecting block are connected, thereby connecting the upper and lower housings. At the same time, the slider drives the push block to move, and the push block pushes the second fixing ring and the connecting tube to move toward the interface tube, thereby making the connecting tube and the interface tube tightly connected to prevent gas leakage.

[0018] After assembly, observe whether the display block extends to determine if there is a gas leak. When a gas leak occurs, the leaked gas enters the upper and lower housings and then into the detection tube. The gas pushes the display block out of the detection tube until the pressure relief groove connects with the outside, achieving a relatively balanced state. At this time, the top of the display block extends out of the detection tube, making it convenient for maintenance personnel to make a visual judgment. This method can also be used to make judgments during daily use. When a gas leak occurs, promptly notify maintenance personnel for maintenance.

[0019] Beneficial effects: In this utility model, the pressure vessel with leak-proof interface, through the arrangement of multiple structures such as the upper shell, lower shell and connecting pipe, can tightly connect the interface pipe and the connecting pipe together, reduce wear, prevent gas leakage, and wrap the connection to provide protection. It is simple and convenient to install and disassemble, providing convenience for maintenance personnel.

[0020] In this utility model, the pressure vessel with leak-proof interface, through the setting of multiple structures such as detection tube, display block and tension spring, allows people to judge the gas leakage by observing whether the display block extends during assembly and use. The detection method is simple and intuitive.

[0021] This invention reduces wear, prevents gas leakage, and encloses the joints for protection. It is easy to install and disassemble. During assembly and use, people can judge the gas leakage situation by observing whether the display block protrudes. The detection method is simple and intuitive. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a pressure vessel with leak-proof interface proposed in this utility model.

[0023] Figure 2 This is an exploded structural diagram of a pressure vessel with leak-proof interface proposed in this utility model;

[0024] Figure 3 This is a first-view cross-sectional structural diagram of a pressure vessel with leak-proof interface proposed in this utility model.

[0025] Figure 4 This is a second-view cross-sectional structural diagram of a pressure vessel with leak-proof interface proposed in this utility model.

[0026] Figure 5 This is a third-view cross-sectional structural diagram of a pressure vessel with leak-proof interface proposed in this utility model.

[0027] In the diagram: 1. Tank body; 2. Interface pipe; 3. Connecting pipe; 4. First fixing ring; 5. Second fixing ring; 6. Upper shell; 7. Lower shell; 8. First sealing ring; 9. Second sealing ring; 10. First positioning groove; 11. First positioning block; 12. Second positioning groove; 13. Second positioning block; 14. Slider; 15. Push block; 16. Limiting block; 17. Connecting block; 18. Screw; 19. Third sealing ring; 20. Detection tube; 21. Display block; 22. Tension spring; 23. Stop block; 24. Pressure relief groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1: Refer to Figures 1-5 A pressure vessel, comprising:

[0030] Tank 1, with an interface pipe 2 fixedly connected to the top of the tank 1, and a connecting pipe 3 sleeved on one end of the interface pipe 2. The connecting pipe 3 is used to connect with other equipment or pipelines. A first fixing ring 4 is fixed on the outer wall of the interface pipe 2, and a second fixing ring 5 is fixed on the outer wall of the connecting pipe 3. An installation assembly is sleeved between the interface pipe 2 and the connecting pipe 3.

[0031] The mounting assembly includes an upper housing 6 and a lower housing 7. A first fixing ring 4 and a second fixing ring 5 are both located inside the upper housing 6 and the lower housing 7. A slider 14 is slidably connected to one inner wall of the lower housing 7. A push block 15 is fixed to one side of the slider 14, and the push block 15 abuts against the second fixing ring 5. A screw 18 is rotatably threaded through one side of the lower housing 7, and the screw 18 threadedly passes through the slider 14. By rotating the screw 18, the slider 14 and the push block 15 can be moved, thereby pushing the second fixing ring 5 to achieve a tight connection between the connecting pipe 3 and the interface pipe 2.

[0032] A connecting mechanism is provided between the upper housing 6 and the lower housing 7 to connect them. The connecting mechanism includes a connecting block 17 and a limiting block 16. The connecting block 17 is fixed to one inner wall of the upper housing 6, and the limiting block 16 is fixed to the surface of the slider 14. The limiting block 16 and the connecting block 17 cooperate with each other. When the upper housing 6 and the lower housing 7 are closed, the slider 14 is used to adjust the position of the limiting block 16, and the limiting block 16 enters the corresponding position of the connecting block 17, thereby achieving a stable connection between the upper housing 6 and the lower housing 7.

[0033] The surface of the upper housing 6 is equipped with a detection mechanism for detecting gas leaks. The detection mechanism includes a detection tube 20, which is fixedly inserted through the surface of the upper housing 6 and connected to the interior of the upper housing 6. A display block 21 is slidably connected to the inner wall of the detection tube 20. The surfaces of both the detection tube 20 and the display block 21 are flush with the surface of the upper housing 6. A tension spring 22 is fixed between the bottom of the display block 21 and the bottom inner wall of the detection tube 20. A stop block 23 is fixed to the inner wall of the detection tube 20, and the display block 21 abuts against the stop block 23. A pressure relief groove 24 is formed on the bottom of the outer wall of the display block 21. When gas leaks inside the pressure vessel, the gas enters the detection tube 20, pushing the display block 21 to move. By observing the positional change of the display block 21, it is possible to determine whether there is a leak.

[0034] This application can be used in the field of pressure vessels, or in other fields applicable to this application.

[0035] Example 2: An improved pressure vessel with leak-proof interface based on Example 1, which is applied to the field of pressure vessels;

[0036] In another aspect of this embodiment, an annular first sealing ring 8 is fixedly provided on one inner wall of the connecting pipe 3, and an annular sealing groove is opened on the inner wall of the connecting pipe 3. A second sealing ring 9 is fixedly provided in the sealing groove. Both the first sealing ring 8 and the second sealing ring 9 abut against the interface pipe 2 to ensure the sealing of the connection between the interface pipe 2 and the connecting pipe 3. Sealing grooves are opened on the sides of the upper housing 6 and the lower housing 7 that are close to each other. A third sealing ring 19 is fixedly provided in both sealing grooves to ensure the sealing of the connection between the upper housing 6 and the lower housing 7, the sealing of the connection between the upper housing 6 and the interface pipe 2 and the connecting pipe 3, and the sealing of the connection between the lower housing 7 and the interface pipe 2 and the connecting pipe 3.

[0037] In another aspect of this embodiment, two first positioning blocks 11 are fixed on the outer wall of the interface pipe 2, and two first positioning grooves 10 are opened on one side of the connecting pipe 3, with the first positioning blocks 11 and the first positioning grooves 10 cooperating with each other.

[0038] In another aspect of this embodiment, two second positioning grooves 12 are provided on one side of the first fixing ring 4, and two second positioning blocks 13 are fixed on the inner wall of one side of the upper housing 6 and the lower housing 7. The second positioning blocks 13 and the second positioning grooves 12 cooperate to ensure accurate alignment when the connecting pipe 3 and the interface pipe 2 are connected.

[0039] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions to ensure accurate alignment of the upper housing 6 and the lower housing 7 during installation.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pressure vessel with leak-proof interfaces, characterized in that, include: The tank (1) has an interface pipe (2) fixedly connected to its top end. A connecting pipe (3) is sleeved on one end of the interface pipe (2). A first fixing ring (4) is fixed on the outer wall of the interface pipe (2). A second fixing ring (5) is fixed on the outer wall of the connecting pipe (3). An installation assembly is sleeved between the interface pipe (2) and the connecting pipe (3). The mounting assembly includes an upper housing (6) and a lower housing (7). The first fixing ring (4) and the second fixing ring (5) are both located inside the upper housing (6) and the lower housing (7). A slider (14) is slidably connected to one side of the inner wall of the lower housing (7). A push block (15) is fixed on one side of the slider (14). The push block (15) and the second fixing ring (5) abut against each other. A screw (18) is rotatably passed through one side of the lower housing (7). The screw (18) threadedly passes through the slider (14). A connecting mechanism is provided between the upper housing (6) and the lower housing (7) for connecting the upper housing (6) and the lower housing (7). The surface of the upper housing (6) is provided with a detection mechanism for detecting whether gas is leaking.

2. A pressure vessel with leak-proof interface according to claim 1, characterized in that, The connecting mechanism includes a connecting block (17) and a limiting block (16). The connecting block (17) is fixed on one side of the inner wall of the upper housing (6), and the limiting block (16) is fixed on the surface of the slider (14). The limiting block (16) and the connecting block (17) cooperate with each other.

3. A pressure vessel with leak-proof interface according to claim 2, characterized in that, The detection mechanism includes a detection tube (20), which is fixedly inserted through the surface of the upper housing (6). The detection tube (20) and the interior of the upper housing (6) are connected. A display block (21) is slidably connected to the inner wall of the detection tube (20). The surfaces of the detection tube (20) and the display block (21) are flush with the surface of the upper housing (6). A tension spring (22) is fixed between the bottom of the display block (21) and the bottom inner wall of the detection tube (20). A stop block (23) is fixed to the inner wall of the detection tube (20). The display block (21) and the stop block (23) abut against each other. A pressure relief groove (24) is opened at the bottom of the outer wall of the display block (21).

4. A pressure vessel with leak-proof interface according to claim 3, characterized in that, A first annular sealing ring (8) is fixedly provided on one side of the inner wall of the connecting pipe (3). An annular sealing groove is opened on the inner wall of the connecting pipe (3). A second sealing ring (9) is fixedly provided in the sealing groove. The first sealing ring (8) and the second sealing ring (9) both abut against the interface pipe (2). A sealing groove is opened on the side of the upper shell (6) and the lower shell (7) that are close to each other. A third sealing ring (19) is fixedly provided in both sealing grooves.

5. A pressure vessel with leak-proof interface according to claim 4, characterized in that, Two first positioning blocks (11) are fixed on the outer wall of the interface pipe (2), and two first positioning grooves (10) are opened on one side of the connecting pipe (3). The first positioning blocks (11) and the first positioning grooves (10) cooperate with each other.

6. A pressure vessel with leak-proof interface according to claim 5, characterized in that, Two second positioning grooves (12) are provided on one side of the first fixing ring (4), and two second positioning blocks (13) are fixed on the inner wall of one side of the upper shell (6) and the lower shell (7). The second positioning blocks (13) cooperate with the second positioning grooves (12).