A seamless gas cylinder device for gas storage and transportation

Abstract

The present invention relates to the technical field of pressure vessels, and particularly to a seamless gas cylinder device for gas storage and transportation. A seamless gas cylinder device for gas storage and transportation includes: a seamless gas cylinder, an inlet and outlet pipe, a sewage discharge pipe, a flange assembly, and a seal. The seamless gas cylinder is provided with at least one port. Both the inlet and outlet pipe and the sewage discharge pipe are connected to the port. The flange assembly is arranged at the port, and the inlet and outlet pipe and the sewage discharge pipe penetrate through the flange assembly and extend into the interior of the seamless gas cylinder. The seal is arranged at the port to seal the port, the inlet and outlet pipe, and the sewage discharge pipe, and an annular groove is provided on the seal. A seamless gas cylinder device for gas storage and transportation has the following advantages: it integrates the pipeline system, reduces the occupied space, reduces the torque and operation space during installation and disassembly. It improves the sealing effect. It has the ability to kill and treat microorganisms. It prevents the gas cylinder flange from rotating relative to the port.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure vessels, and in particular to a seamless gas cylinder device for gas storage and transportation. Background Art

[0002] With the continuous development of modern industrial technology, the use of compressed gas in fields such as navigation, aviation, and aerospace is becoming more and more extensive. The equipment structure of the gas pipeline system is also continuously upgraded and optimized, and thus higher requirements are put forward for the structure of steel seamless gas cylinders used for storing compressed gas. Seamless gas cylinders need to have a more compact integrated structure, a more convenient installation and disassembly method, and better adaptability under complex working conditions, etc.

[0003] Generally, an open-ended plug structure is used at the end of a seamless gas cylinder. The pipe orifices of the inlet and outlet pipes generally face upward, and the pipe orifice of the drain pipe generally faces downward. The inlet and outlet pipes and the drain pipe cannot be integrated on the ports at both ends of the seamless gas cylinder. For example, the Chinese invention patent with the publication number CN102155604A discloses a large-diameter compressed natural gas storage well and its installation method, belonging to the technical field of compressed natural gas storage equipment. It includes a cemented cast pipe, a cemented cement layer, a drying pipeline, a drying pipeline valve, an inlet and outlet pipeline valve, a pressure gauge, a safety valve, a main control valve, a drain pipeline, a gas storage cylinder, and a fixed position; the lower end of the gas storage cylinder is installed on the bottom support flange, and the upper part of the gas storage cylinder is fixed to the sealing flange of the gas storage cylinder mouth by a flange and a pin. The cemented cast pipe and the flange of the gas storage cylinder mouth form a closed structure. In the pipeline system structure of this seamless gas cylinder, the inlet and outlet pipes and the drain pipe cannot be fixed on the open-ended plug in the form of bolt installation. The bending directions of the inlet and outlet pipes and the drain pipe are opposite. If the two are welded to the open-ended plug at the same time, the open-ended plug cannot be installed on the cylinder body. Therefore, usually, an inlet and outlet pipe is welded to the open-ended plug at one end of the seamless gas cylinder, and a drain pipe is welded to the open-ended plug at the other end. The external pipeline system of the cylinder body needs to be distributed at both ends of the gas cylinder, the pipeline system is scattered, and it occupies a large space. The thread model of the open-ended plug used in the seamless gas cylinder structure is relatively large, and a large torque and operating space are required during the installation and disassembly process. In particular, it is more difficult to load and unload the open-ended plug in a narrow space. When the seamless gas cylinder used in the navigation field is used for a long time, stains will accumulate inside the cylinder body, and microorganisms are likely to breed. The seamless gas cylinder needs to have a sewage discharge function and also the ability to kill the microorganisms inside the cylinder body. Ordinary seals use rubber, copper ring seals, etc., and the sealing effect is not good. Summary of the Invention

[0004] In view of this, the present invention aims to provide a seamless gas cylinder device for gas storage and transportation. The inlet and outlet gas pipes and the sewage discharge pipe are installed at one port of the seamless gas cylinder. The inlet and outlet gas pipes and the sewage discharge pipe are connected to the seamless gas cylinder through a flange assembly. The seal is made of copper material, and a V-shaped annular groove is provided on the seal. During installation, the seal is annealed. The sewage discharge pipe is made of copper material, and a lead sleeve is sleeved on the sewage discharge pipe. A pin is provided between the port of the seamless gas cylinder and the cylinder flange, which solves the problem that the bending directions of the inlet and outlet gas pipes and the sewage discharge pipe are opposite, and they cannot be welded to the opening end plug simultaneously. The pipeline system is scattered and occupies a large space. The threaded model of the opening end plug of the seamless gas cylinder structure is relatively large, and a large torque and operating space are required during the installation and disassembly process. Especially, it is difficult to load and unload the opening end plug in a narrow space. It does not have the ability to kill and treat microorganisms. Ordinary seals are made of rubber, copper ring seals, etc., and the sealing effect is not good.

[0005] To solve the above problems, the present invention provides a seamless gas cylinder device for gas storage and transportation, including:

[0006] A seamless gas cylinder, provided with at least one port;

[0007] An inlet and outlet gas pipe, connected to the port;

[0008] A sewage discharge pipe, both connected to the same port as the inlet and outlet gas pipe;

[0009] A flange assembly, arranged at the port, and the inlet and outlet gas pipe and the sewage discharge pipe pass through the flange assembly and extend into the interior of the seamless gas cylinder;

[0010] A seal, arranged at the port, sealing the port and the inlet and outlet gas pipe and the sewage discharge pipe, and an annular groove is provided on the seal.

[0011] Further, the flange assembly includes:

[0012] A cylinder flange, fixedly connected to the port;

[0013] A gas pipe flange, fixedly connected to the cylinder flange, and a gas pipe through hole and a sewage discharge pipe through hole are provided on the gas pipe flange. The inlet and outlet gas pipe extends into the interior of the seamless gas cylinder through the gas pipe through hole, and the sewage discharge pipe extends into the interior of the seamless gas cylinder through the sewage discharge pipe through hole.

[0014] Further, the flange assembly further includes:

[0015] A sewage discharge flange, the sewage discharge flange is fixedly connected to the gas pipe flange, and the sewage discharge pipe extends into the interior of the seamless gas cylinder through the sewage discharge flange and the sewage discharge pipe through hole.

[0016] Further, the sewage pipe is made of copper material, and a lead sleeve is sleeved on the outer surface of at least the end portion of the sewage pipe inside the seamless gas cylinder.

[0017] Further, the gas cylinder flange is threadedly connected to the port.

[0018] Further, at least one fixing pin is provided on the mutually connected end surfaces of the inner peripheral surface of the gas cylinder flange and the outer surface of the port.

[0019] Further, the sealing member is made of copper material.

[0020] Further, the annular groove is V-shaped.

[0021] Further, annealing treatment is performed when installing the sealing member.

[0022] Further, a connecting flange is fixedly connected to the port of the air inlet and outlet pipe outside the seamless gas cylinder.

[0023] Compared with the prior art, the seamless gas cylinder device for gas storage and transportation according to the present invention has the following advantages:

[0024] The advantages of this technical solution are that the air inlet and outlet pipe and the sewage pipe are installed at one port of the seamless gas cylinder, concentrating the pipeline system and reducing the occupied space. The air inlet and outlet pipe and the sewage pipe are connected to the seamless gas cylinder through the flange assembly, reducing the torque and operation space during installation and disassembly. The sealing member is made of copper material, a V-shaped annular groove is provided on the sealing member, and annealing treatment is performed on the sealing member during installation, improving the sealing effect. The sewage pipe is made of copper material, and a lead sleeve is sleeved on the sewage pipe, having the ability to kill and treat microorganisms. A pin is provided between the port of the seamless gas cylinder and the gas cylinder flange to prevent the gas cylinder flange from rotating relative to the port. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a sectional view of the seamless gas cylinder device for gas storage and transportation according to the embodiment of the present invention;

[0026] Figure 2 is a sectional view of the sealing member according to the embodiment of the present invention.

[0027] Description of the reference numerals:

[0028] 1 - seamless gas cylinder, 2 - end plug, 3 - flange assembly, 31 - gas cylinder flange, 32 - air pipe flange, 33 - sewage flange, 4 - air inlet and outlet pipe, 5 - sewage pipe, 6 - connecting flange, 7 - fixing pin, 8 - sealing member, 81 - annular groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings.

[0030] In the present invention, the descriptions involving "first", "second", "upper", "lower", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "upper", "lower" may explicitly or implicitly include at least one of such features. Additionally, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the technical solutions between embodiments can be combined, they are all within the scope of protection required by the present invention.

[0031] As Figure 1 shown, a seamless gas cylinder device for gas storage and transportation includes: a seamless gas cylinder 1, an inlet and outlet pipe 4, a drain pipe 5, a flange assembly 3, and a seal 8. The seamless gas cylinder 1 is provided with at least one port. The inlet and outlet pipe 4 is connected to the port. The drain pipe 5 and the inlet and outlet pipe 4 are both connected to the same port. The flange assembly 3 is disposed at the port, and the inlet and outlet pipe 4 and the drain pipe 5 pass through the flange assembly 3 and extend into the interior of the seamless gas cylinder 1. As Figure 2 shown, the seal 8 is disposed at the port to seal the port, the inlet and outlet pipe 4, and the drain pipe 5, and an annular groove 81 is provided on the seal 8.

[0032] Generally, a seamless gas cylinder 1 is provided with a plug 2 at each end respectively, and the inlet and outlet pipe 4 and the drain pipe 5 are respectively connected through the two plugs 2, occupying a large amount of space. For the seamless gas cylinder device for gas storage and transportation with the above structure in this embodiment, the inlet and outlet pipe 4 and the drain pipe 5 are connected to the same port of the gas cylinder, centralizing the pipeline system and reducing the occupied space. The inlet and outlet pipe 4 and the drain pipe 5 are connected to the seamless gas cylinder 1 through the flange assembly 3, reducing the torque and operating space during installation and disassembly. The annular groove 81 is provided on the seal 8, improving the sealing effect.

[0033] Furthermore, the flange assembly 3 includes: a gas cylinder flange 31 and a pipe flange 32. The gas cylinder flange 31 is fixedly connected to the port. The pipe flange 32 is fixedly connected to the gas cylinder flange 31, and a pipe through-hole and a drain pipe through-hole are provided on the pipe flange 32. The inlet and outlet pipe 4 extends into the interior of the seamless gas cylinder 1 through the pipe through-hole, and the drain pipe 5 extends into the interior of the seamless gas cylinder 1 through the drain pipe through-hole.

[0034] Insert the air inlet and outlet pipe 4 and the sewage discharge pipe 5 through the air pipe through-hole and the sewage discharge through-hole and the gas cylinder flange 31 into the interior of the gas cylinder, and then fix the air pipe flange 32 to the gas cylinder flange 31 by bolts to achieve the fixed connection of the air inlet and outlet pipe 4 and the sewage discharge pipe 5 with the port. In this embodiment, the flange assembly 3 is used to replace the end plug 2 at one end of the seamless gas cylinder 1, and the air inlet and outlet pipe 4 and the sewage discharge pipe 5 are both installed at one end of the seamless gas cylinder 1.

[0035] Preferably, the flange assembly 3 further includes: a sewage discharge flange 33, the sewage discharge flange 33 is fixedly connected to the air pipe flange 32, and the sewage discharge pipe 5 extends into the interior of the seamless gas cylinder 1 through the sewage discharge flange 33 and the sewage discharge pipe through-hole.

[0036] As a preferred method, the sewage discharge pipe 5 is prone to damage by corrosive substances during use. Therefore, a separate sewage discharge flange 33 is provided for the sewage discharge pipe 5, which is convenient for repairing the faults corresponding to the air inlet and outlet pipe 4 and the sewage discharge pipe 5 respectively when a failure occurs. During installation, the air pipe flange 32 is fixedly connected to the air inlet and outlet pipe 4. After the air inlet and outlet pipe 4 passes through the air pipe flange 32 and the gas cylinder flange 31 and extends into the interior of the seamless gas cylinder 1, the air pipe flange 32 is fixedly connected to the gas cylinder flange 31. Then the sewage discharge flange 33 is fixed to the sewage discharge pipe 5, the sewage discharge pipe 5 passes through the sewage discharge pipe through-hole and the gas cylinder flange 31 and extends into the interior of the seamless gas cylinder 1, and the sewage discharge flange 33 is fixed to the air pipe flange 32 by bolts.

[0037] Preferably, the air inlet and outlet pipe 4 and the air pipe flange 32 are connected by group welding. The sewage discharge pipe 5 and the sewage discharge flange 33 are connected by group welding.

[0038] Furthermore, the sewage discharge pipe 5 is made of copper material, and a lead sleeve 51 is sleeved on the outer surface of at least the end of the sewage discharge pipe 5 inside the seamless gas cylinder 1.

[0039] The sewage discharge pipe 5 is made of a copper pipe, and a lead sleeve 51 is welded to its pipe orifice. This combined structure can play a role in killing microorganisms in the bottle.

[0040] Furthermore, the gas cylinder flange 31 is threadedly connected to the port.

[0041] Furthermore, at least one fixing pin 7 is provided on the mutually connected end surfaces of the inner peripheral surface of the gas cylinder flange 31 and the outer surface of the port.

[0042] By providing the fixing pin 7, the rotation of the gas cylinder flange 31 relative to the port can be restricted. Preferably, 3 fixing pins 7 are evenly distributed along the inner circumferences of the port and the gas cylinder flange 31.

[0043] Furthermore, the seal 8 is made of copper material.

[0044] Copper materials have good sealing performance due to their relatively soft texture.

[0045] Furthermore, the annular groove 81 is V-shaped.

[0046] Making the annular groove 81 V-shaped better improves the sealing performance.

[0047] Furthermore, anneal the seal 8 during installation.

[0048] After annealing, the copper seal 8 becomes softer. By applying a smaller force to the seal 8, the seal 8 can deform, further improving the sealing performance of the seal 8.

[0049] Furthermore, a connecting flange 6 is fixedly connected to the port of the inlet and outlet pipe 4 outside the seamless gas cylinder 1.

[0050] The inlet and outlet pipe 4 is quickly connected to the external pipeline through the connecting flange 6, which is convenient for installation and disassembly.

[0051] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims.

Claims

1. A seamless gas cylinder device for gas storage and transportation, characterized in that, Comprising: A seamless gas cylinder (1) provided with at least one port; An inlet and outlet gas pipe (4) connected to the port; A blowdown pipe (5), both the inlet and outlet gas pipe (4) and the blowdown pipe (5) are connected to the same port; A flange assembly (6) disposed at the port, the inlet and outlet gas pipe (4) and the blowdown pipe (5) pass through the flange assembly (6) and extend into the interior of the seamless gas cylinder (1); The flange assembly (3) includes: A gas cylinder flange (31) fixedly connected to the port; A gas pipe flange (32) fixedly connected to the gas cylinder flange (31), on the gas pipe flange (32) there are a gas pipe through-hole and a blowdown pipe through-hole, the inlet and outlet gas pipe extends into the interior of the seamless gas cylinder (1) through the gas pipe through-hole, and the blowdown pipe (5) extends into the interior of the seamless gas cylinder (1) through the blowdown pipe through-hole; A blowdown flange (33), the blowdown flange (33) is fixedly connected to the gas pipe flange (32), and the blowdown pipe (5) extends into the interior of the seamless gas cylinder (1) through the blowdown flange (33) and the blowdown pipe (5) through-hole; The inlet and outlet gas pipe (4) and the gas pipe flange (32) are connected by group welding, and the blowdown pipe (5) and the blowdown flange (33) are connected by group welding; A seal (8) disposed at the port, sealing the port, the inlet and outlet gas pipe (4) and the blowdown pipe (5), and there is an annular groove (81) on the seal (8).

2. The seamless gas cylinder device for gas storage and transportation according to claim 1, characterized in that The blowdown pipe (5) is made of copper material, and a lead sleeve (51) is sleeved on the outer surface of at least the end part of the blowdown pipe (5) inside the seamless gas cylinder (1).

3. The seamless gas cylinder device for gas storage and transportation according to claim 1, characterized in that The gas cylinder flange (31) is threadedly connected to the port.

4. The seamless gas cylinder device for gas storage and transportation according to claim 3, characterized in that At least one fixing pin (7) is provided on the end surface where the inner circumferential surface of the gas cylinder flange (31) and the outer surface of the port are connected to each other.

5. The seamless gas cylinder device for gas storage and transportation according to claim 1, characterized in that The seal (8) is made of copper material.

6. The seamless gas cylinder device for gas storage and transportation according to claim 5, characterized in that The annular groove (81) is in a V shape.

7. The seamless gas cylinder device for gas storage and transportation according to claim 6, characterized in that Annealing treatment is performed when installing the seal (8).

8. The seamless gas cylinder device for gas storage and transportation according to claim 1, characterized in that A connecting flange (6) is fixedly connected to the port of the inlet and outlet gas pipe (4) outside the seamless gas cylinder (1).

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