A Visualization of the GVU Valve Control Box for Large Low-Speed Engines

Abstract

The present invention discloses a visual large low-speed engine GVU valve control box, which includes a GVU valve control box body and two elbows located on the solenoid valve assemblies at the air inlet and outlet of the box body. One end of each of the two elbows is respectively equipped with an intake pipe and a main engine pipe. The invention also includes a visual mechanism for monitoring the interior of the box body, a flexible connection mechanism used in cooperation with the elbows, and two symmetrically distributed connectors on the flexible connection mechanism. The control cabinet provided by the present invention ensures the power support for the LNG gas alarm, camera, and cold light source, thereby ensuring that when the box body is in a sealed state, the inspectors can monitor the situation inside the box body in real time through the control cabinet, realizing the visualization of the box body, and starting through the air supply pipe to achieve the leakage of the emptied LNG gas in the box body.

Description

Technical Field

[0001] The present invention relates to the technical field of GVU valve control boxes for marine low-speed engines, and particularly to a visual large low-speed engine GVU valve control box. Background Art

[0002] When a ship uses LNG fuel to drive the operation of a marine low-speed engine, a GVU valve control box needs to be installed accordingly to control the flow of LNG fuel. The GVU valve box is equipped with a solenoid valve assembly, which is a valve and pipeline device for controlling or regulating a gas fuel engine on an LNG-powered ship.

[0003] Generally, the end of the gas supply pipe of the solenoid valve assembly in the GVU valve box of an LNG-powered ship is directly connected to the main engine by threads or flanges. However, due to the large vibration of the ship during navigation, this rigid connection structure is prone to falling off, and the gap generated by the falling off or relative misalignment is likely to cause LNG gas leakage. If the leaked gas cannot be discharged in time, it will affect the normal navigation of the LNG-powered ship. Summary of the Invention

[0004] The purpose of the present invention is to reduce the influence brought by the above situation, and to provide a visual large low-speed engine GVU valve control box.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A visual large low-speed engine GVU valve control box, the GVU valve control box is installed on a ship, including a GVU valve control box body and two elbows located on the solenoid valve assemblies at the air inlet and outlet of the box body. One end of each of the two elbows is respectively equipped with an air inlet pipe and a main engine pipe, and further includes a visual mechanism for monitoring the inside of the box body, a flexible connection mechanism used in cooperation with the elbows, and two symmetrically distributed connectors on the flexible connection mechanism;

[0006] The flexible connection mechanism includes a hose sleeved on the port of the elbow and two sleeves sleeved on the hose. U-shaped fixing seats are provided on the outer walls of the elbow, the air inlet pipe, and the main engine pipe on the same side. Fixing blocks that rotate relative to and are detachable from the inner wall of the U-shaped fixing seat are provided on the outer wall of the sleeve;

[0007] The two connectors are arranged between the two sleeves, and one of the connectors is on the same side as the fixing block. The connector includes a first hollow block and a second hollow block that overlaps on the first hollow block and rotates relatively. The first hollow block is connected to one of the sleeves, and the second hollow block is connected to the other sleeve.

[0008] As a further optimized solution of the present invention: The visual mechanism includes an LNG gas alarm installed on the top of the inner wall of the box for detecting the LNG gas content in the box, a camera for monitoring the solenoid valve assembly, a cold light source for ensuring the brightness inside the box, and a control cabinet electrically connected to the LNG gas alarm, the camera, and the cold light source.

[0009] As a further optimization solution of the present invention: the control cabinet is arranged on the mounting frame on the outer wall of the box body. The mounting frame is provided with an air supply pipe with a built-in fan that blows air into the box body. The top of the box body is provided with an exhaust pipe that cooperates with the air supply pipe, and the air outlet end of the exhaust pipe is connected with an external connecting pipe.

[0010] As a further optimization solution of the present invention: serrated rings that fit the inner wall of the hose are provided on the elbow pipe, the intake pipe, and the main pipe. The hose is connected to the elbow pipe, the intake pipe, and the main pipe through a clamp.

[0011] As a further optimization solution of the present invention: detachable connecting pins penetrate through the U-shaped fixing seat and the fixing block, and between the first hollow block and the second hollow block.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The provided connecting piece ensures the relative position of the two sleeves is fixed. When the ship vibrates due to a horizontal impact, the first hollow block and the second hollow block can rotate horizontally relative to each other through the provided connecting pin, and the corresponding torsion of the hose is realized through the flexibility of the hose. Or when the ship vibrates up and down, the fixing block rotates relative to the U-shaped fixing seat through the connection of the connecting pin, that is, drives the two sleeves to rotate relative to the elbow pipe, the intake pipe, or the main pipe, and similarly drives the hose to twist and deform, ensuring the sealing performance and connection strength at the connection between the hose and the elbow pipe, the intake pipe, or the main pipe, and preventing gas leakage.

[0014] 2. The provided control cabinet ensures the power support for the LNG gas alarm, the camera, and the cold light source. Furthermore, it ensures that when the box body is in a sealed state, the detection personnel can monitor the situation inside the box body in real time through the control cabinet, realizing the visualization of the box body, and the leaked LNG gas inside the box body is discharged by starting the air supply pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view three-dimensional view of a visual large low-speed engine GVU valve control box of the present invention;

[0016] Figure 2 It is a visual large low-speed engine GVU valve control box of the present invention Figure 1 The side sectional structure schematic diagram;

[0017] Figure 3 It is a visual large low-speed engine GVU valve control box of the present invention Figure 1 The front sectional structure schematic diagram;

[0018] Figure 4 It is a visual large low-speed engine GVU valve control box of the present invention Figure 3Enlarged view of part A;

[0019] Figure 5 Schematic structural diagram of a visual large - speed low - speed machine GVU valve control box according to the present invention;

[0020] Figure 6 A visual large - speed low - speed machine GVU valve control box according to the present invention Figure 4 Enlarged view of part B.

[0021] In the figure:

[0022] 1. Box body; 2. Exhaust air pipe; 3. Outer connecting pipe; 4. Mounting bracket; 5. Control cabinet; 6. Air supply pipe; 7. Serrated ring; 8. Elbow pipe; 9. Main engine pipe; 10. Intake pipe; 11. Sleeve; 12. Hose; 13. LNG gas alarm; 14. Cold light source; 15. Camera; 16. First hollow block; 17. Second hollow block; 18. U - shaped fixing seat; 19. Fixing block; 20. Connecting pin. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0024] Embodiment 1;

[0025] Please refer to Figures 1-6 , the present invention provides a technical solution: a visual large - speed low - speed machine GVU valve control box, the GVU valve control box is installed on a ship, including a GVU valve control box body 1 and two elbow pipes 8 located on the solenoid valve assemblies at the air inlet and outlet of the box body 1. One end of each of the two elbow pipes 8 is respectively equipped with an intake pipe 10 and a main engine pipe 9. It also includes a visual mechanism for monitoring the inside of the box body 1, a flexible connection mechanism cooperating with the elbow pipe 8, and two symmetrically distributed connecting parts on the flexible connection mechanism;

[0026] The flexible connection mechanism includes a hose 12 sleeved on the port of the elbow pipe 8 and two sleeves 11 sleeved on the hose 12. U - shaped fixing seats 18 are provided on the outer walls of the elbow pipe 8, the intake pipe 10, and the main engine pipe 9 on the same side. Fixing blocks 19 that rotate relatively and detachably with the inner walls of the U - shaped fixing seats 18 are provided on the outer walls of the sleeves 11;

[0027] The achieved effect is that the hose 12 uses a special LNG hose, and there is a gap between the two sleeves 11 sleeved on the hose 12. At the same time, there are also gaps between the sleeve 11 and the ports of the elbow 8, the intake pipe 10, and the main pipe 9, ensuring that the sleeve 11 can swing. And the two sleeves 11 cover most of the surface area of the hose 12, that is, when the LNG gas passes through the hose 12, due to the protection of the sleeve 11, the area where the LNG gas can cause compression on the hose 12 is reduced, ensuring that the surface of the hose 12 will not easily expand and deform. The intake pipe 10 is used in matching with the intake port of the solenoid valve assembly for the LNG gas to enter the solenoid valve assembly. The main pipe 9 is used in matching with the outlet port of the solenoid valve assembly for the solenoid valve assembly to transport the LNG gas into the low-speed engine. And as Figure 4 shown, when the U-shaped fixing seat 18 is located at the bottom surface of the outer wall of the elbow 8, the connecting pin 20 passing through the U-shaped fixing seat 18 and the fixing block 19 ensures that the fixing block 19 and the U-shaped fixing seat 18 can swing vertically up and down. And due to the flexibility of the hose 12, when the ship sways up and down, the hose 12 deforms slightly, ensuring the stability of the connection between the elbow 8 and the main pipe 9 and the intake pipe 10. As Figure 6 shown, the fixing block 19 is stuck inside the U-shaped fixing seat 18, and the relative position between the U-shaped fixing seat 18 and the fixing block 19 is fixed by inserting the connecting pin 20 through them. Through the cylindrical part of the connecting pin 20, the U-shaped fixing seat 18 and the fixing block 19 can rotate relative to each other. Moreover, by removing the connecting pin 20, the U-shaped fixing seat 18 and the fixing block 19 can be disassembled.

[0028] Two connecting pieces are arranged between the two sleeves 11, and one of the connecting pieces is on the same side as the fixing block 19. The connecting piece includes a first hollow block 16 and a second hollow block 17 that overlaps on the first hollow block 16 and rotates relatively. The first hollow block 16 is connected to one of the sleeves 11, and the second hollow block 17 is connected to the other sleeve 11.

[0029] The achieved effect is that as Figure 4 shown, the first hollow block 16 and the second hollow block 17 can rotate horizontally relative to each other, that is, when the ship sways due to a horizontal impact force, the box body 1 drives one of the sleeves 11 to rotate relative to the other sleeve 11, and drives the hose 12 to twist and deform, and the connections between the hose 12 and the elbow 8, the main pipe 9, and the intake pipe 10 will not become loose.

[0030] Embodiment 2

[0031] Please refer to Figure 2, the visualization mechanism includes an LNG gas alarm 13 installed at the top of the inner wall of the box body 1 for detecting the LNG gas content in the box body 1, a camera 15 for monitoring the solenoid valve assembly, a cold light source 14 for ensuring the brightness inside the box body 1, and a control cabinet 5 electrically connected to the LNG gas alarm 13, the camera 15 and the cold light source 14. The control cabinet 5 is arranged on the mounting bracket 4 on the outer wall of the box body 1. The mounting bracket 4 is provided with an air supply pipe 6 with a built-in fan and blowing air into the box body 1. The top of the box body 1 is provided with an exhaust pipe 2 cooperating with the air supply pipe 6. The air outlet end of the exhaust pipe 2 is connected with an external connecting pipe 3.

[0032] The achieved effect is that the control cabinet 5 is an existing PLC control cabinet with a liquid crystal screen. During use, the data collected by the LNG gas alarm 13 and the camera 15 are transmitted into the control cabinet 5 through electrical signals by the wires and signal lines used for electrical connection, and are displayed on the liquid crystal screen of the control cabinet 5, which is convenient for maintenance personnel to perform internal inspections without opening the box body 1. And the control cabinet 5 is electrically connected to the fan in the air supply pipe 6, and the air supply pipe 6 is arranged through the surface of the box body 1. When the ship stops, the LNG gas in the solenoid valve assembly is released and emptied, gathering in the box body 1. By opening the air supply pipe 6 and the exhaust pipe 2, air is blown into the box body 1 under the action of the fan, and then the LNG gas in the box body 1 enters the external connecting pipe 3 through the exhaust pipe 2, and the LNG gas safely enters the external environment of the ship through the distribution position of the external connecting pipe 3.

[0033] Embodiment III

[0034] Please refer to Figure 4 , serrated rings 7 that fit the inner wall of the hose 12 are provided on the elbow 8, the intake pipe 10 and the main pipe 9. The hose 12 is connected to the elbow 8, the intake pipe 10 and the main pipe 9 through a clamp. Removable connecting pins 20 penetrate between the U-shaped fixing seats 18 and the fixing blocks 19, and between the first hollow block 16 and the second hollow block 17.

[0035] The achieved effect is that the hose 12 is tightly fitted on the serrated ring 7 through the clamp, and the hose 12 contacts and deforms with the grooves on the surface of the serrated ring 7 to prevent the hose 12 from detaching from the serrated ring 7, ensuring both the connection strength and the sealing performance, as Figure 4As shown, the connecting pin 20 passes through the hollow parts on the first hollow block 16 and the second hollow block 17, and by adjusting the position where the connecting pin 20 passes through, the distance between the two sleeves 11 is adjusted. That is, after the box body 1, the main pipe 9, and the air inlet pipe 10 are pre-fixed, the length of the appropriate hose 12 can be cut, and the two sleeves 11 are sleeved on the hose 12. By adjusting the distance between the two sleeves 11, a gap is reserved between the sleeves 11 and the ports of the elbow pipe 8, the air inlet pipe 10, and the main pipe 9, so as to ensure that the sleeves 11 can swing relative to the elbow pipe 8, the air inlet pipe 10, or the main pipe 9.

[0036] During the working process, when the U-shaped fixing seat 18 is installed on the top or bottom of the outer wall of the elbow pipe 8, after the positions of the box body 1, the main pipe 9, and the air inlet pipe 10 are fixed on the ship, the hose 12 of an appropriate length is cut, and the connecting pin 20 passes through the corresponding hollow parts on the surfaces of the first hollow block 16 and the second hollow block 17 to adjust the distance between the two sleeves 11. Then the two sleeves 11 are sleeved on the hose 12. After the hose 12 is connected to the ports of the elbow pipe 8, the air inlet pipe 10, and the main pipe 9 through the clamp, the connecting pin 20 passes through the fixing block 19 and the U-shaped fixing seat 18. During actual use, the up-and-down shaking of the ship drives the U-shaped fixing seat 18 and the fixing block 19 to swing relatively up and down, thereby realizing the swinging of the hose 12. When the ship shakes horizontally, the first hollow block 16 and the second hollow block 17 rotate horizontally relative to the connecting pin 20 as the center, realizing the swinging of the hose 12, which can ensure the stable connection between the hose 12 and the elbow pipe 8, the air inlet pipe 10, and the main pipe 9, and ensure the sealing performance.

[0037] When the U-shaped fixing seat 18 is installed on both sides of the outer wall of the elbow pipe 8, after the positions of the box body 1, the main pipe 9, and the air inlet pipe 10 are fixed on the ship, the hose 12 of an appropriate length is cut, and the connecting pin 20 passes through the corresponding hollow parts on the surfaces of the first hollow block 16 and the second hollow block 17 to adjust the distance between the two sleeves 11. Then the two sleeves 11 are sleeved on the hose 12. After the hose 12 is connected to the ports of the elbow pipe 8, the air inlet pipe 10, and the main pipe 9 through the clamp, the connecting pin 20 passes through the fixing block 19 and the U-shaped fixing seat 18. During actual use, the left-and-right shaking of the ship drives the U-shaped fixing seat 18 and the fixing block 19 to swing relatively left and right, thereby realizing the swinging of the hose 12. When the ship shakes horizontally, the first hollow block 16 and the second hollow block 17 rotate relative to each other in the vertical plane with the connecting pin 20 as the center, realizing the swinging of the hose 12, which can ensure the stable connection between the hose 12 and the elbow pipe 8, the air inlet pipe 10, and the main pipe 9, and ensure the sealing performance. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A visual large low-speed engine GVU valve control box, the GVU valve control box is installed on a ship, and includes a box body (1) and two elbow pipes (8) located on the solenoid valve assemblies at the air inlet and air outlet of the box body (1). One end of each of the two elbow pipes (8) is respectively equipped with an air inlet pipe (10) and a main engine pipe (9), and it is characterized in that: It further includes a visualization mechanism for monitoring the interior of the box body (1), a flexible connection mechanism used in cooperation with the elbow pipe (8), and two symmetrically distributed connecting members on the flexible connection mechanism; The flexible connection mechanism includes a hose (12) sleeved on the port of the elbow pipe (8) and two sleeves (11) sleeved on the hose (12). U-shaped fixing seats (18) are provided on the outer walls of the same side of the elbow pipe (8), the intake pipe (10), and the main pipe (9). Fixing blocks (19) that rotate relative to and are detachable from the inner walls of the U-shaped fixing seats (18) are provided on the outer walls of the sleeves (11); The two connecting members are arranged between the two sleeves (11), and one of the connecting members is on the same side as the fixing block (19). The connecting member includes a first hollow block (16) and a second hollow block (17) that overlaps on the first hollow block (16) and rotates relatively. The first hollow block (16) is connected to one of the sleeves (11), and the second hollow block (17) is connected to the other sleeve (11); The visualization mechanism includes an LNG gas alarm (13) installed at the top of the inner wall of the box body (1) for detecting the LNG gas content in the box body (1), a camera (15) for monitoring the solenoid valve assembly, a cold light source (14) for ensuring the interior brightness of the box body (1), and a control cabinet (5) electrically connected to the LNG gas alarm (13), the camera (15), and the cold light source (14); The control cabinet (5) is arranged on the mounting bracket (4) on the outer wall of the box body (1). An air supply pipe (6) with a built-in fan and blowing air into the box body (1) is provided on the mounting bracket (4). An exhaust pipe (2) cooperating with the air supply pipe (6) is provided at the top of the box body (1). The outlet end of the exhaust pipe (2) is connected with an external connection pipe (3); Sawtooth rings (7) that fit the inner walls of the hoses (12) are provided on the elbow pipe (8), the intake pipe (10), and the main pipe (9). The hoses (12) are connected to the elbow pipe (8), the intake pipe (10), and the main pipe (9) through clamps.

2. The visualized large low-speed engine GVU valve control box according to claim 1, wherein: Detachable connecting pins (20) penetrate between the U-shaped fixing seats (18) and the fixing blocks (19), and between the first hollow blocks (16) and the second hollow blocks (17).

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