Bypass tool for purging outer pipeline of LGIP dual-fuel main engine
By designing a bypass tool for purge of the outer pipeline of LGIP dual fuel host, the problem of difficulty in effectively conducting airtightness inspection in the prior art is solved, and simple and convenient airtightness inspection and the applicability of more dual fuel host pipelines are achieved.
Patent Information
- Application Number
- CN202421489260.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The prior art is difficult to effectively solve the problem of airtightness inspection of the outer pipeline of LGIP dual-fuel host, especially in ensuring safety and convenience.
A bypass tool for purge of the outer pipeline of the LGIP dual-fuel host is designed, including components such as high-pressure hoses, flange plates, pipe joints, bolts and U-shaped cards. Through the combination and installation of these components, the purge and airtightness inspection of the outer pipeline of the host is realized.
The bypass tooling is simple and light, easy to install and use, and can be used independently by a single operator. It can be used by more than one dual-fuel mainframe pipeline bypass work, significantly improving the efficiency and convenience of airtightness inspection.
Smart Images

Figure CN222576749U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bypass tooling, in particular to a bypass tooling used for purging an external pipeline of a LGIP dual-fuel main engine. Background Art
[0002] Due to increasingly stringent emission regulations and high fuel costs, marine low-speed diesel engines are developing towards new clean energy.
[0003] LGIP series is a new energy engine. Since LPG has a low ignition point, a small explosion limit and a high risk, the air tightness inspection of the LGIP engine is particularly important. For this reason, a bypass tooling for purging the external pipeline of the LGIP dual-fuel engine is proposed. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the deficiencies of the prior art, the utility model provides a bypass tool for purging the external pipeline of a LGIP dual-fuel main engine to solve the problems raised in the above background technology.
[0006] (II) Technical solution
[0007] To achieve the above purpose, the utility model provides the following technical solution: a bypass tool for purging the external pipeline of a LGIP dual-fuel main engine, comprising:
[0008] A high-pressure hose, wherein flange plates are provided at both ends of the outside of the high-pressure hose, and the flange plates are fixedly connected to the high-pressure hose, and pipe joints are provided at both ends of the high-pressure hose, and a sealing ring is installed at the lower end of the flange plate outside the pipe joint;
[0009] The bolt is arranged inside the flange plate, and a gasket is arranged on one side of the outer portion of the bolt located on the upper end of the flange plate.
[0010] Preferably, two U-shaped clips are installed outside the upper end of the high-pressure hose, and a lifting rack is fixedly provided on the upper end between the two U-shaped clips, and the lifting rack is used to lift the bypass tooling.
[0011] Preferably, a hanging ring is installed on one side inside the carrying rack, and the hanging ring is fixedly connected to the carrying rack, and the hanging ring is used to hang the carrying rack.
[0012] Preferably, a top block is installed inside the upper end of the U-shaped card, and a push rod is installed on the upper end of the top block, and the push rod is used to push the top block to eject the high-pressure hose.
[0013] Preferably, return springs are installed on both left and right sides of the U-shaped card, and the return springs are fixedly connected to the U-shaped card.
[0014] Preferably, a clamping block is installed outside the reset spring, and the clamping block is fixedly connected to the reset spring, and the reset spring enables the clamping block to have automatic reset performance.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the utility model provides a bypass tooling for purging the external pipeline of the LGIP dual-fuel main engine, which has the following beneficial effects:
[0017] The utility model uses the LGIP dual-fuel main engine external pipeline purge bypass tooling, which is simple and light in design, easy to install and use, and can be used independently by a single operator; the LGIP dual-fuel main engine external pipeline purge bypass tooling has simple parts processing and manufacturing; the LGIP dual-fuel main engine external pipeline purge bypass tooling can be suitable for more dual-fuel main engine pipeline bypass work; in short, by using the utility model, the air tightness inspection work of the LGIP series main engine can be assisted to be completed more conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a three-dimensional diagram of the overall structure of the bypass tooling of the utility model;
[0019] Figure 2 This is a schematic diagram of the installation state of the utility model;
[0020] Figure 3 This is a three-dimensional diagram of the U-shaped card installation state of the utility model;
[0021] Figure 4 This is a cross-sectional view of the internal structure of the U-shaped card of the utility model.
[0022] In the figure: 1. flange plate; 2. high-pressure hose; 3. pipe joint; 4. sealing ring; 5. gasket; 6. bolt; 7. gas inlet valve; 8. gas return valve; 9. lifting rack; 10. hanging ring; 11. U-shaped clip; 12. top block; 13. push rod; 14. clip block; 15. reset spring. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The utility model provides a technical solution, a bypass tool for purging the external pipeline of the LGIP dual-fuel main engine, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,include:
[0025] A high-pressure hose 2, both ends of the high-pressure hose 2 are provided with flange plates 1, and the flange plates 1 are fixedly connected to the high-pressure hose 2, both ends of the high-pressure hose 2 are provided with pipe joints 3, and a sealing ring 4 is installed on the lower end of the flange plate 1 outside the pipe joint 3;
[0026] The bolt 6 is arranged inside the flange plate 1 , and a gasket 5 is arranged outside the bolt 6 on one side of the upper end of the flange plate 1 .
[0027] See also Figure 3 and Figure 4 Two U-shaped clips 11 are installed outside the upper end of the high-pressure hose 2, and a lifting rack 9 is fixedly arranged on the upper end between the two U-shaped clips 11, and the lifting rack 9 is used to lift the bypass tooling.
[0028] See also Figure 3 and Figure 4 A hanging ring 10 is installed on one side of the interior of the carrying frame 9 , and the hanging ring 10 is fixedly connected to the carrying frame 9 , and the hanging ring 10 is used to hang the carrying frame 9 .
[0029] See also Figure 3 and Figure 4 A top block 12 is installed inside the upper end of the U-shaped card 11, and a push rod 13 is installed on the upper end of the top block 12. The push rod 13 is used to push the top block 12 to eject the high-pressure hose 2.
[0030] See also Figure 3 and Figure 4 Reset springs 15 are installed on both the left and right sides of the U-shaped card 11, and the reset springs 15 are fixedly connected to the U-shaped card 11.
[0031] See also Figure 3 and Figure 4 A clamping block 14 is installed outside the reset spring 15, and the clamping block 14 is fixedly connected to the reset spring 15, and the reset spring 15 enables the clamping block 14 to have automatic reset performance.
[0032] This solution: The bypass tooling is installed at the gas inlet valve 7 of the gas inlet and the gas return valve 8 of the outlet, and is used to bypass the main engine pipeline. When checking the air tightness of the external pipeline of the LGIP dual-fuel main engine, the operator removes the valve cover plate, and then connects the tooling pipe joint 3 and the flange plate 1 through the bolt 6. At this time, it should be noted whether the sealing ring 4 is installed in place. After the tooling is installed, turn the valve test valve opening toward the tooling, close the main engine inlet and outlet, so as to achieve the effect of bypassing the main engine pipeline, and clamp the U-shaped card 11 downward on the outside of the high-pressure hose 2. The U-shaped card 11 clamps and fixes the high-pressure hose 2 through the clamping block 14 and the reset spring 15. The bypass tooling is moved through the lifting frame 9 to prevent the hand sweat from corroding the bypass tooling. Push the push rod 13 so that the top block 12 pushes the high-pressure hose 2 out of the U-shaped card 11 to separate it from the bypass tooling.
[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A bypass tool for purging the external pipeline of a LGIP dual-fuel main engine, characterized in that: include: A high-pressure hose (2), wherein flange plates (1) are provided at both ends of the outside of the high-pressure hose (2), and the flange plates (1) are fixedly connected to the high-pressure hose (2), and pipe joints (3) are provided at both ends of the high-pressure hose (2), and a sealing ring (4) is installed at the lower end of the flange plate (1) outside the pipe joint (3); The bolt (6) is arranged inside the flange plate (1), and a gasket (5) is arranged on one side of the upper end of the flange plate (1) outside the bolt (6).
2. A bypass tool for purging the external pipeline of a LGIP dual-fuel main engine according to claim 1, characterized in that: Two U-shaped clamps (11) are installed outside the upper end of the high-pressure hose (2), and a lifting rack (9) is fixedly arranged at the upper end between the two U-shaped clamps (11).
3. A bypass tool for purging the external pipeline of a LGIP dual-fuel main engine according to claim 2, characterized in that: A hanging ring (10) is installed on one side of the interior of the carrying rack (9), and the hanging ring (10) is fixedly connected to the carrying rack (9).
4. A bypass tool for purging the external pipeline of a LGIP dual-fuel main engine according to claim 2, characterized in that: A top block (12) is installed inside the upper end of the U-shaped card (11), and a push rod (13) is installed at the upper end of the top block (12).
5. A bypass tool for purging the external pipeline of a LGIP dual-fuel main engine according to claim 4, characterized in that: Restoration springs (15) are installed on both left and right sides of the U-shaped card (11), and the restoring springs (15) are fixedly connected to the U-shaped card (11).
6. A bypass tool for purging the external pipeline of a LGIP dual-fuel main engine according to claim 5, characterized in that: A clamping block (14) is installed outside the reset spring (15), and the clamping block (14) is fixedly connected to the reset spring (15).