Dual fuel bulk carrier gas supply piping arrangement

Abstract

The utility model relates to the field of gas supply pipeline structure discloses a kind of double-fuel bulk carrier gas supply pipeline structure, including valve body shell, the inner wall of valve body shell is fixedly connected with baffle, the top outer wall of valve body shell is fixedly connected with top cover, the top outer wall of top cover is fixedly connected with support, the inner wall of support is threadedly connected with threaded rod, the end outer wall of threaded rod is fixedly connected with rocking handle, the other end of threaded rod is fixedly connected with piston, the outer wall of valve body shell is fixedly connected with connecting ring, the outer wall of connecting ring is equipped with movable slot. In the utility model, by setting connecting ring, movable slot and threaded sleeve, the adjustable of conveying pipe installation position is realized, to adapt to different pipeline spacing;By setting the threaded connection of threaded sleeve and threaded ring, reliable sealing between conveying pipe and valve body shell is realized, avoid gas leakage due to connection loosening.

Description

Technical Field

[0001] This utility model relates to the field of gas supply pipeline structure, and in particular to a gas supply pipeline structure for a dual-fuel bulk carrier. Background Technology

[0002] A gas supply pipeline structure is a pipeline system used to transport gas from a gas source to the user end. This structure is widely used in urban gas transmission and distribution, industrial gas supply, and residential gas consumption, and can achieve stable gas transmission under different environmental conditions.

[0003] The existing gas supply pipeline structure of dual-fuel bulk carriers is usually switched during the voyage according to the main engine's operating needs. Natural gas or liquefied natural gas is transported to the dual-fuel main engine through the ship's gas storage tanks, gasification devices and corresponding pipelines to meet the power needs of the ship under different voyages and operating conditions.

[0004] In existing applications, the valve body structure is relatively fixed in size, and its interface position and spacing cannot be flexibly adjusted according to the actual pipeline installation spacing. It is difficult to achieve precise docking between the valve body and the pipeline. At the same time, existing pipelines are often connected by flanges. During ship navigation, factors such as vibration, turbulence and long-term use can cause the bolts of the flange connection to loosen or even fall off, which may lead to gas leakage. Therefore, a gas supply pipeline structure for dual-fuel bulk carriers is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a gas supply pipeline structure for dual-fuel bulk carriers, aiming to improve the problems in the prior art where the fixed valve body interface spacing is difficult to adapt to the actual pipeline layout and the flange connection is prone to gas leakage due to loose bolts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gas supply pipeline structure for a dual-fuel bulk carrier, comprising a valve body shell, a partition fixedly connected to the inner wall of the valve body shell, a top cover fixedly connected to the top outer wall of the valve body shell, a bracket fixedly connected to the top outer wall of the top cover, a threaded rod threadedly connected to the inner wall of the bracket, a crank fixedly connected to the outer wall of the end of the threaded rod, a piston fixedly connected to the other end of the threaded rod, a connecting ring fixedly connected to the outer wall of the valve body shell, a movable groove formed on the outer wall of the connecting ring, a retaining ring provided inside the movable groove, a threaded sleeve slidably connected to the outer wall of the connecting ring, a delivery pipe inserted into the inner wall of the threaded sleeve, and a threaded ring fixedly connected to the outer wall of the delivery pipe.

[0007] As a further description of the above technical solution: A sliding rod is fixedly connected to the top outer wall of the top cover, and a mounting plate is slidably connected to the outer wall of the sliding rod. A lower limit ring is fixedly connected to the top outer wall of the mounting plate, and a spring is fixedly connected to the bottom outer wall of the mounting plate. An upper limit ring is fixedly connected to the outer wall of the threaded rod.

[0008] As a further description of the above technical solution: The mounting plate is fitted over the threaded rod.

[0009] As a further description of the above technical solution: The bottom of the spring is fixedly connected to the top outer wall of the top cover, and the mounting plate is elastically connected to the top cover by the spring.

[0010] As a further description of the above technical solution: The end of the delivery pipe is fitted to the outer wall of the valve body shell, and a rubber sealing ring is provided at the fitting point.

[0011] As a further description of the above technical solution: The contact surfaces of the upper and lower limit rings are provided with several sets of conical meshing teeth.

[0012] As a further description of the above technical solution: The threaded sleeve is slidably connected inside the movable groove.

[0013] As a further description of the above technical solution: The threaded sleeve and the threaded ring are connected by threads, and a rubber sealing ring is also provided at the contact point between the two.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by setting a connecting ring, a movable groove and a threaded sleeve, the installation position of the delivery pipe can be adjusted to adapt to different pipe spacings; by setting the threaded connection between the threaded sleeve and the threaded ring, a reliable seal between the delivery pipe and the valve body shell can be achieved, avoiding gas leakage caused by loose connection.

[0015] 2. In this utility model, the elastic reset of the mounting plate is achieved by setting a sliding rod, a mounting plate and a spring; the automatic locking of the threaded rod is achieved by setting an upper limit ring, a lower limit ring and the conical meshing teeth on the contact surface of the two, so as to prevent it from loosening in the vibration environment of the ship. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the overall structure of a gas supply pipeline structure for a dual-fuel bulk carrier proposed in this utility model; Figure 2 This is a schematic diagram of the connecting ring structure of a gas supply pipeline structure for a dual-fuel bulk carrier proposed in this utility model. Figure 3 This is a schematic cross-sectional view of the overall structure of a gas supply pipeline structure for a dual-fuel bulk carrier proposed in this utility model. Figure 4 This is an enlarged schematic diagram of the piston structure of a gas supply pipeline structure for a dual-fuel bulk carrier proposed in this utility model; Figure 5 This is an enlarged schematic diagram of the limiting ring structure of a gas supply pipeline structure for a dual-fuel bulk carrier proposed in this utility model.

[0017] Legend: 1. Valve body shell; 2. Connecting ring; 3. Movable groove; 4. Threaded sleeve; 5. Delivery pipe; 6. Threaded ring; 7. Snap ring; 8. Top cover; 9. Bracket; 10. Threaded rod; 11. Handle; 12. Piston; 13. Baffle; 14. Upper limit ring; 15. Slide rod; 16. Mounting plate; 17. Lower limit ring; 18. Spring. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-3This utility model provides an embodiment of a gas supply pipeline structure for a dual-fuel bulk carrier, including a valve body shell 1. The valve body shell 1 serves as the core mounting carrier, and a partition 13 is fixedly connected to its inner wall. The partition 13 is used to separate the gas passage inside the valve body. A top cover 8 is fixedly connected to the top outer wall of the valve body shell 1. The top cover 8 seals the top of the valve body and provides an installation reference. A bracket 9 is fixedly connected to the top outer wall of the top cover 8. The bracket 9 provides threaded mounting support for a threaded rod 10. The inner wall of the bracket 9 is threadedly connected to the threaded rod 10. The threaded rod 10 can move axially by rotation. A crank handle 11 is fixedly connected to the outer wall of the end of the threaded rod 10. The crank handle 11 facilitates manual driving of the threaded rod 10 by the operator. A piston 12 is fixedly connected to the other end of the threaded rod 10. The piston 12 cooperates with the partition 13 to realize the opening and closing of the gas passage and the flow regulation. The outer wall of the valve body shell 1 is fixedly connected to the partition 13. A connecting ring 2 is connected, providing an installation base for the pipe connection. The outer wall of the connecting ring 2 has a movable groove 3, which provides sliding space for the threaded sleeve 4. A retaining ring 7 is provided inside the movable groove 3 to limit the sliding stroke of the threaded sleeve 4 and prevent it from falling off. The threaded sleeve 4 is slidably connected to the outer wall of the connecting ring 2 and is slidably connected inside the movable groove 3. The sliding of the threaded sleeve 4 can adapt to the installation requirements of delivery pipes 5 with different spacings. The delivery pipe 5 is inserted into the inner wall of the threaded sleeve 4. The delivery pipe 5 is used for gas delivery. The end of the delivery pipe 5 is in contact with the outer wall of the valve body shell 1. A rubber sealing ring is provided at the contact point to enhance the sealing of the connection. A threaded ring 6 is fixedly connected to the outer wall of the delivery pipe 5. The threaded sleeve 4 and the threaded ring 6 are threadedly connected, and a rubber sealing ring is also provided at the contact point between the two. The double sealing structure through threaded locking prevents gas leakage.

[0020] Reference Figures 3-5 A sliding rod 15 is fixedly connected to the top outer wall of the top cover 8. The sliding rod 15 provides a sliding guide for the mounting plate 16. The mounting plate 16 is slidably connected to the outer wall of the sliding rod 15 and is sleeved on the outside of the threaded rod 10. The bottom of the spring 18 is fixedly connected to the top outer wall of the top cover 8. The mounting plate 16 is elastically connected to the top cover 8 through the spring 18. The spring 18 provides a continuous elastic preload force to the mounting plate 16. A lower limit ring 17 is fixedly connected to the top outer wall of the mounting plate 16. A spring 18 is fixedly connected to the bottom outer wall of the mounting plate 16. An upper limit ring 14 is fixedly connected to the outer wall of the threaded rod 10. The contact surfaces of the upper limit ring 14 and the lower limit ring 17 are provided with several sets of conical meshing teeth. Under the preload action of the spring 18, the conical meshing teeth mesh with each other to realize the automatic locking of the threaded rod 10 and prevent the threaded rod 10 from loosening when the ship vibrates.

[0021] Working principle: By turning the crank handle 11, the threaded rod 10 rotates within the bracket 9. The threaded rod 10 drives the piston 12 to move within the valve body housing 1. The piston 12, in conjunction with the partition plate 13, adjusts the gas passage. The mounting plate 16 is sleeved on the outside of the threaded rod 10 and is fixedly connected to the top outer wall of the top cover 8. The mounting plate 16 is elastically connected to the top cover 8 via a spring 18. When the threaded rod 10 rotates, the upper limit ring 14 rotates accordingly and contacts the lower limit ring 17. The upper limit ring 14 and... The contact surface of the lower limit ring 17 is provided with several sets of conical meshing teeth, which automatically lock the threaded rod 10 under the elastic action of the spring 18. The threaded sleeve 4 is slidably connected inside the movable groove 3. The installation position of the conveying pipe 5 can be adjusted by sliding the threaded sleeve 4. The end of the conveying pipe 5 is in contact with the outer wall of the valve body shell 1. A rubber sealing ring is provided at the contact point. The threaded sleeve 4 is threadedly connected to the threaded ring 6, and a rubber sealing ring is also provided at the contact point of the two to achieve a sealed connection between the conveying pipe 5 and the valve body shell 1.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas supply pipeline structure for a dual-fuel bulk carrier, comprising a valve body housing (1), characterized in that: A partition plate (13) is fixedly connected to the inner wall of the valve body shell (1). A top cover (8) is fixedly connected to the top outer wall of the valve body shell (1). A bracket (9) is fixedly connected to the top outer wall of the top cover (8). A threaded rod (10) is threadedly connected to the inner wall of the bracket (9). A crank handle (11) is fixedly connected to the outer wall of the end of the threaded rod (10). A piston (12) is fixedly connected to the other end of the threaded rod (10). A connecting ring (2) is fixedly connected to the outer wall of the valve body shell (1). A movable groove (3) is opened on the outer wall of the connecting ring (2). A retaining ring (7) is provided inside the movable groove (3). A threaded sleeve (4) is slidably connected to the outer wall of the connecting ring (2). A delivery pipe (5) is inserted into the inner wall of the threaded sleeve (4). A threaded ring (6) is fixedly connected to the outer wall of the delivery pipe (5).

2. The gas supply pipeline structure for a dual-fuel bulk carrier according to claim 1, characterized in that: The top outer wall of the top cover (8) is fixedly connected to a slide rod (15), the outer wall of the slide rod (15) is slidably connected to a mounting plate (16), the top outer wall of the mounting plate (16) is fixedly connected to a lower limit ring (17), the bottom outer wall of the mounting plate (16) is fixedly connected to a spring (18), and the outer wall of the threaded rod (10) is fixedly connected to an upper limit ring (14).

3. The gas supply pipeline structure for a dual-fuel bulk carrier according to claim 2, characterized in that: The mounting plate (16) is fitted over the threaded rod (10).

4. The gas supply pipeline structure for a dual-fuel bulk carrier according to claim 2, characterized in that: The bottom of the spring (18) is fixedly connected to the top outer wall of the top cover (8), and the mounting plate (16) is elastically connected to the top cover (8) through the spring (18).

5. The gas supply pipeline structure for a dual-fuel bulk carrier according to claim 1, characterized in that: The end of the delivery pipe (5) is attached to the outer wall of the valve body shell (1), and a rubber sealing ring is provided at the attachment point.

6. The gas supply pipeline structure for a dual-fuel bulk carrier according to claim 2, characterized in that: The contact surfaces of the upper limit ring (14) and the lower limit ring (17) are provided with several sets of conical meshing teeth.

7. The gas supply pipeline structure for a dual-fuel bulk carrier according to claim 1, characterized in that: The threaded sleeve (4) is slidably connected inside the movable groove (3).

8. The gas supply pipeline structure for a dual-fuel bulk carrier according to claim 1, characterized in that: The threaded sleeve (4) is threadedly connected to the threaded ring (6), and a rubber sealing ring is also provided at the joint between the two.

Images