GVU valve box

Abstract

The utility model relates to the technical field of ship gas supply GVU valve boxes, in particular to a GVU valve box which comprises a barrel, a cover plate and a tray are detachably connected to the upper end and the lower end of the barrel respectively, a plurality of supporting frames used for supporting the tray are arranged at the lower end of the tray, and a containing space is formed in the tray. A ventilation inlet pipe and a ventilation outlet pipe which are communicated with the containing space are arranged on the side wall of the tray, a fuel gas inlet and a fuel gas outlet are formed in the ventilation inlet pipe and the ventilation outlet pipe respectively, a horizontally-arranged arc-shaped inner main pipe is contained in the containing space, and the two ends of the inner main pipe are communicated with the fuel gas inlet and the fuel gas outlet respectively. External fuel gas is introduced into the internal main pipe through the fuel gas inlet, then discharged from the internal main pipe and used for the gas supply system, the hollow space in the barrel is communicated with the containing space, and a conical bottom plate is arranged on the lower end face of the tray. According to the utility model, the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a GVU valve box for ship air supply, in particular to a GVU valve box. Background Art

[0002] The GVU valve box is a device in the gas supply system of LNG fueled ships, which is used to centrally control or regulate the valves and pipeline components of the gas supply in the system.

[0003] At present, when inspecting and repairing the GVU valve box, there is a small inspection space, which makes inspection difficult; for example, on March 14, 2023, a patent with a publication number of CN218619853U was disclosed, and the name is a GVU valve box that is easy to maintain, including a lifting unit, one end of the lifting unit is fixed on the box body, and the other end is fixed on the cover; the lifting unit includes a lifting mechanism, and the cover is connected to the lifting mechanism. The utility model adds a lifting unit between the box body and the cover, so that the cover can be opened during inspection, which is convenient for installation and maintenance; however, in the above documents, the box body is relatively high, so after the cover is opened, the inspection space is relatively small, and maintenance personnel need to reach into the box body for maintenance, making maintenance difficult. Summary of the invention

[0004] In view of this, the purpose of the utility model is to provide a GVU valve box to solve the problem of difficult maintenance.

[0005] Based on the above-mentioned purpose, the utility model provides a GVU valve box, including a cylinder body, the upper and lower ends of the cylinder body are respectively detachably connected with a cover plate and a tray, the lower end of the tray is provided with a plurality of support frames for supporting the tray, a accommodating space is opened on the tray, and a ventilation inlet pipe and a ventilation outlet pipe connected to the accommodating space are provided on the side wall of the tray, a gas inlet and a gas outlet are respectively provided in the ventilation inlet pipe and the ventilation outlet pipe, a horizontally arranged arc-shaped internal main pipe is accommodated in the accommodating space, the two ends of the internal main pipe are respectively connected with the gas inlet and the gas outlet, the hollow space in the cylinder body is connected with the accommodating space, a conical bottom plate is provided on the lower end surface of the tray, and a residue discharge pipe for discharging residues in the accommodating space is connected in the middle part of the conical bottom plate.

[0006] Optionally, the internal main pipe is fixedly connected to the tray via a pipe hanger.

[0007] Optionally, a filter and a normally open pneumatic shut-off valve are provided on the internal main pipe, and the filter is located between the gas inlet and the pneumatic shut-off valve.

[0008] Optionally, the internal main pipe is connected to an internal branch pipe located in the accommodating space, the other end of the internal branch pipe is connected to a release port opened on the side wall of the tray, and the internal branch pipe is provided with a normally closed pneumatic release valve.

[0009] Optionally, the connection between the internal branch pipe and the internal main pipe is located between the gas inlet and the filter.

[0010] Optionally, the support frame includes an upper support arm and a lower support arm, the upper end of the upper support arm is connected to the tray, the upper support arm and the lower support arm are connected by a driving telescopic rod, the upper end surface of the lower support arm is provided with a receiving groove for accommodating the driving telescopic rod, the telescopic end of the driving telescopic rod is connected to the lower end of the upper support arm, the upper end surface of the lower support arm is provided with a limiting block located outside the receiving groove, and the lower end surface of the upper support arm is provided with a limiting groove cooperated with the limiting block.

[0011] Optionally, the limiting block is an annular protrusion, and the limiting groove is an annular groove arranged to cooperate with the annular protrusion.

[0012] Beneficial effects of the utility model: the utility model provides a GVU valve box, in which the gas inlet and the gas outlet are arranged on a tray, and the cylinder body is detachably connected to the tray but not connected to the internal main pipe. When the cylinder body is removed from the tray, the internal main pipe will not be affected. The internal main pipe is horizontally arranged in the tray, and the internal main pipe is horizontally extended, so that maintenance personnel can easily reach into the tray to inspect the internal main pipe after removing the cylinder body, thereby facilitating inspection and improving inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a left-side structural schematic diagram of the utility model;

[0016] Figure 3 It is a partial top view structural schematic diagram of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the ventilation inlet pipe of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the support frame of the utility model.

[0019] In the figure: 1, cover plate; 2, cylinder; 3, tray; 4, accommodating space; 5, support frame; 6, internal main pipe; 7, internal branch pipe; 8, gas inlet; 9, gas outlet; 10, ventilation inlet pipe; 11, ventilation outlet pipe; 12, pneumatic shut-off valve; 13, pneumatic relief valve; 14, filter; 15, relief port; 16, air inlet; 17, residual relief valve; 51, upper support arm; 52, lower support arm; 53, driving telescopic rod; 54, accommodating groove; 55, annular groove; 56, annular protrusion. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 5 As shown, the utility model provides a GVU valve box, which can be applied to the gas supply system of LNG fuel ships and is used for the safe gas supply of ships using LNG combustible gas as fuel.

[0023] It should be noted that the GVU valve box of the present invention is used for but not limited to ships, and can also be applied to other gas supply systems that require LNG combustible gas as fuel. In the present invention, only the GVU valve box applied to ships is used as an example for explanation, and the principle of GVU valve box applied to other equipment is essentially the same as that applied to ships, which will not be repeated here.

[0024] A GVU valve box, comprising a cylinder 2, wherein the upper and lower ends of the cylinder 2 are detachably connected to a cover plate 1 and a tray 3, respectively, wherein the lower end of the tray 3 is provided with a plurality of support frames 5 for supporting the tray 3, wherein the lower end of the support frame 5 is connected to a ship for installation, wherein a receiving space 4 is provided on the tray 3, wherein a ventilation inlet pipe 10 and a ventilation outlet pipe 11 connected to the receiving space 4 are provided on the side wall of the tray 3, wherein the ventilation inlet pipe 10 and the ventilation outlet pipe 11 are connected to an external pipe ventilation system of an air supply system, wherein the ventilation inlet pipe 10 and the ventilation outlet pipe 11 are respectively provided with A gas inlet 8 and a gas outlet 9 are provided, and the accommodating space 4 accommodates a horizontally arranged arc-shaped internal main pipe 6, and the two ends of the internal main pipe 6 are respectively connected to the gas inlet 8 and the gas outlet 9. The external gas is introduced into the internal main pipe 6 through the gas inlet 8, and then discharged from the internal main pipe 6 and used for the gas supply system. The hollow space in the cylinder 2 is connected to the accommodating space 4, and the lower end surface of the tray 3 is provided with a conical bottom plate. The middle part of the conical bottom plate is connected to a residual discharge pipe for discharging the residue in the accommodating space 4, and a residual discharge valve 17 is provided on the residual discharge pipe.

[0025] By arranging the gas inlet 8 and the gas outlet 9 on the tray 3, the cylinder 2 is detachably connected to the tray 3 without being connected to the internal main pipe 6. When the cylinder 2 is removed from the tray 3, the internal main pipe 6 will not be affected. The internal main pipe 6 is horizontally arranged in the tray 3. The internal main pipe 6 is horizontally extended, so that after removing the cylinder 2, the maintenance personnel can easily reach into the tray 3 to inspect the internal main pipe 6, thereby improving the maintenance efficiency.

[0026] The internal main pipe 6 is fixedly connected to the tray 3 via a pipe hanger, which facilitates fixing the internal main pipe 6 and avoids direct connection between the internal main pipe 6 and the tray 3, thereby reducing the difficulty of subsequent maintenance.

[0027] A filter 14 and a normally open pneumatic shut-off valve 12 are provided on the internal main pipe 6. The filter 14 is located between the gas inlet 8 and the pneumatic shut-off valve 12. The filter 14 filters the gas in the internal main pipe 6 to prevent impurities from entering the gas supply system through the gas outlet 9. The pneumatic shut-off valve 12 is used to quickly cut off the gas flow in the internal main pipe 6. The upper part of the filter 14 and the upper part of the pneumatic shut-off valve 12 both extend into the hollow space in the cylinder 2. When maintenance is required, after the cylinder 2 is separated from the tray 3, the filter 14 and the pneumatic shut-off valve 12 are exposed for maintenance.

[0028] The internal main pipe 6 is connected to an internal branch pipe 7 located in the accommodating space 4. The other end of the internal branch pipe 7 is connected to a discharging port 15 opened on the side wall of the tray 3. The internal branch pipe 7 is provided with a normally closed pneumatic relief valve 13. When the gas is supplied normally, the pneumatic relief valve 13 is closed and the interface of the discharging port 15 is closed. When the gas is under maintenance, failure or shutdown, the interface of the discharging port 15 can be opened, the pneumatic relief valve 13 is opened, and the gas in the internal main pipe 6 is discharged through the discharging port 15.

[0029] The connection between the internal branch pipe 7 and the internal main pipe 6 is located between the gas inlet 8 and the filter 14 , so that when discharging the gas in the internal main pipe 6 , it is not necessary to make all the gas pass through the filter 14 , thereby increasing the service life of the filter 14 .

[0030] The cylinder 2 is provided with an air inlet 16 connected to the hollow space to facilitate the interaction between the air inside the cylinder 2 and the air outside the cylinder 2 .

[0031] The cylinder 2 is detachably connected to the tray 3 via a flange. The cover plate 1 and the cylinder 2 connected thereto can be removed upwards during maintenance. The outer surface of the cover plate 1 can be fixedly provided with lifting ears to facilitate removal of the cover plate 1 and the cylinder 2 connected thereto.

[0032] The support frame 5 includes an upper support arm 51 and a lower support arm 52, the upper end of the upper support arm 51 is connected to the pallet 3, and the lower end of the lower support arm 52 is installed and connected to the ship, the upper support arm 51 and the lower support arm 52 are connected by a driving telescopic rod 53, the upper end surface of the lower support arm 52 is provided with a receiving groove 54 for accommodating the driving telescopic rod 53, the telescopic end of the driving telescopic rod 53 is connected to the lower end of the upper support arm 51, the upper end surface of the lower support arm 52 is provided with a limiting block located outside the receiving groove 54, and the lower end surface of the upper support arm 51 is provided with a limiting groove arranged in cooperation with the limiting block. When the staff needs to perform maintenance, the cylinder 2 is removed from the pallet 3, the driving telescopic rod 53 can be driven to control the upper support arm 51 and the pallet 3 connected thereto to rise, so that the staff can inspect and handle the internal main pipe 6, filter 14, etc. on the pallet 3 without bending over.

[0033] The limiting block may be an annular protrusion 56 or a protruding rod, and the limiting groove may be an annular groove 55 matched with the annular protrusion 56 or a groove hole matched with the protruding rod.

[0034] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0035] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A GVU valve box, characterized in that: The invention comprises a cylinder (2), the upper and lower ends of the cylinder (2) are detachably connected with a cover plate (1) and a tray (3), the lower end of the tray (3) is provided with a plurality of support frames (5) for supporting the tray (3), a receiving space (4) is provided on the tray (3), a ventilation inlet pipe (10) and a ventilation outlet pipe (11) are provided on the side wall of the tray (3), a gas inlet (8) and a gas outlet (9) are provided in the ventilation inlet pipe (10) and the ventilation outlet pipe (11), respectively, a horizontally arranged arc-shaped internal main pipe (6) is accommodated in the receiving space (4), the two ends of the internal main pipe (6) are respectively connected with the gas inlet (8) and the gas outlet (9), the hollow space in the cylinder (2) is connected with the receiving space (4), the lower end surface of the tray (3) is provided with a conical bottom plate, and the middle part of the conical bottom plate is connected with a residue discharge pipe for discharging residue in the receiving space (4).

2. A GVU valve box according to claim 1, characterized in that: The internal main pipe (6) is fixedly connected to the tray (3) via a pipe hanger.

3. A GVU valve box according to claim 1, characterized in that: The internal main pipe (6) is provided with a filter (14) and a pneumatic shut-off valve (12), and the filter (14) is located between the gas inlet (8) and the pneumatic shut-off valve (12).

4. A GVU valve box according to claim 3, characterized in that: The internal main pipe (6) is connected to an internal branch pipe (7) located in the accommodating space (4); the other end of the internal branch pipe (7) is connected to a release port (15) provided on the side wall of the tray (3); and the internal branch pipe (7) is provided with a pneumatic release valve (13).

5. A GVU valve box according to claim 4, characterized in that: The connection point between the internal branch pipe (7) and the internal main pipe (6) is located between the gas inlet (8) and the filter (14).

6. A GVU valve box according to claim 1, characterized in that: The support frame (5) comprises an upper support arm (51) and a lower support arm (52), the upper end of the upper support arm (51) is connected to the tray (3), the upper support arm (51) and the lower support arm (52) are connected via a driving telescopic rod (53), the upper end surface of the lower support arm (52) is provided with a receiving groove (54) for receiving the driving telescopic rod (53), the telescopic end of the driving telescopic rod (53) is connected to the lower end of the upper support arm (51), the upper end surface of the lower support arm (52) is provided with a limiting block located at the periphery of the containing groove (54), and the lower end surface of the upper support arm (51) is provided with a limiting groove arranged in cooperation with the limiting block.

7. A GVU valve box according to claim 6, characterized in that: The limiting block is an annular protrusion (56), and the limiting groove is an annular groove (55) arranged in cooperation with the annular protrusion (56).

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