Downward-leading quick-charging pipeline system for vertical welding heat-insulation gas cylinder
By designing and integrating a bottom-feeding fast-filling pipeline system on a vertical welded insulated gas cylinder, the problem of high filling difficulty caused by the large space occupied by the valve is solved, realizing rapid filling and efficient circulation, which is suitable for large vertical gas cylinders.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JINFAN CRYOGENIC TECH CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-17
AI Technical Summary
In large and tall vertical gas cylinders, the cylinder valves are concentrated at the top of the cylinder, which affects the filling operation, storage and transportation, increases the difficulty of filling and reduces the filling efficiency.
Design a down-feed fast-charging pipeline system for vertical welded insulated gas cylinders. The system integrates an inlet passage, a vent passage, a pressurization unit, an outlet passage, and safety accessories on the distributor head. The valve is located on the waist of the cylinder body. The pipeline is arranged at intervals along the circumference of the distributor head and supported on the outer surface of the cylinder body by a support clamp. The valve stem is designed with an inclination to reduce space occupation.
It improves the filling speed, reduces the space occupied, and enhances the circulation efficiency of gas cylinders, making it suitable for large-volume and tall three-dimensional welded insulated gas cylinders.
Smart Images

Figure CN224135682U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pressure vessel technology, and in particular to a down-feed fast-charging pipeline system for vertical welded insulated gas cylinders. Background Technology
[0002] In some large and tall vertical gas cylinders, the concentration of the cylinder valves at the top of the cylinder can affect the filling operation, storage and transportation of the cylinder, increase the difficulty of filling and reduce the filling efficiency. Summary of the Invention
[0003] In order to solve the above-mentioned technical problems, the purpose of this application is to provide a bottom-feed fast charging pipeline system for vertical welded insulated gas cylinders that reduces space occupation and improves gas cylinder turnover efficiency.
[0004] To achieve the above objectives, this application adopts the following technical solution: a down-feed fast-charging pipeline system for vertically welded insulated gas cylinders, comprising a distribution head installed on the top of the cylinder body and an inlet passage, a venting passage, a pressurizing unit, an outlet passage, and a safety accessory integrated on the distribution head. The distribution head is connected to the interior of the cylinder body. The inlet passage, venting passage, pressurizing unit, outlet passage, and safety accessory are all connected to the interior of the cylinder body through the distribution head. The inlet passage includes an inlet valve and an inlet pipe connecting the inlet valve and the distribution head. The venting passage includes a venting valve and a venting pipe connecting the venting valve and the distribution head. The outlet passage includes an outlet valve and an outlet pipe connecting the outlet valve and the distribution head. The pressurizing unit and the safety accessory are arranged on the top of the cylinder body, and the inlet valve, venting valve, and outlet valve are arranged on the waist of the cylinder body.
[0005] In the above technical solution, it is further preferred that the projection of the dispensing head from top to bottom is circular, and the liquid inlet passage, venting passage, pressurizing unit, liquid outlet passage and safety accessories are arranged at intervals along the circumference of the dispensing head.
[0006] In the above technical solution, it is further preferred that the liquid inlet passage, venting passage, liquid outlet passage and the safety accessory are all equipped with support clamps.
[0007] In the above technical solution, it is further preferred that the inlet pipe, the vent pipe and the outlet pipe are each supported on the outer surface of the bottle body by at least one of the support pipe clamps.
[0008] In the above technical solution, it is further preferred that the liquid inlet valve has a liquid inlet for filling liquid and a liquid outlet connected to the liquid inlet pipe, and a support pipe clamp is respectively arranged at the liquid inlet and the liquid outlet to support the liquid inlet valve on the bottle body.
[0009] In the above technical solution, a further preferred embodiment is that the liquid inlet passage further includes a rotary clamp, which is installed at the liquid inlet of the liquid inlet valve and connected to the liquid inlet. The rotary clamp has a filling port for connecting an external filling pipe, the filling port facing away from the bottle body, and the center line of the filling port is perpendicular to the center line of the bottle body.
[0010] In the above technical solution, it is further preferred that the valve stems of the inlet valve, the vent valve, and the outlet valve are all inclined towards the outer surface of the bottle body in the circumferential direction of the bottle body, and each valve stem has an operating end away from its own valve body, and the operating end of each valve stem is close to the outer surface of the bottle body.
[0011] In the above technical solution, it is further preferred that the nominal diameter of the liquid inlet pipe is 25mm and the nominal diameter of the liquid inlet valve is 25mm.
[0012] In the above technical solution, it is further preferred that the nominal diameter of the vent pipe is 15mm and the nominal diameter of the vent valve is 15mm.
[0013] Compared with the prior art, this application achieves the following beneficial effects:
[0014] The fast-charging pipeline system of this application integrates multiple valves installed on the distributor head, and outputs through the distributor head. This optimizes the pipeline, increases the filling speed while reducing the space occupied, and improves the cylinder circulation efficiency. It is especially suitable for large-volume and tall three-dimensional welded insulated cylinders. Attached Figure Description
[0015] Figure 1 A three-dimensional structural schematic diagram of an insulated gas cylinder provided for an embodiment of this application;
[0016] Figure 2 for Figure 1 A top view of the insulated gas cylinder.
[0017] The components are as follows: 100. Insulated gas cylinder; 10. Downward fast charging pipeline system; 1. Distributor; 2. Liquid inlet passage; 21. Liquid inlet valve; 211. Liquid inlet; 212. Liquid outlet; 22. Liquid inlet pipe; 23. Rotary clamp; 231. Filling port; 3. Venting passage; 31. Venting valve; 32. Venting pipe; 4. Pressurization unit; 5. Liquid outlet passage; 51. Liquid outlet valve; 52. Liquid outlet pipe; 6. Safety accessories; 7. Support pipe clamp; 20. Cylinder body. Detailed Implementation
[0018] To illustrate the technical content, structural features, achieved objectives, and effects of the application in detail, the technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. In the following description, for illustrative purposes, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shape, structure, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.
[0019] This application provides a bottom-feed fast-charging pipeline system for vertically welded insulated gas cylinders, such as... Figure 1 As shown, the down-leading fast charging pipeline system 10 is installed on the cylinder body 20 of the insulated gas cylinder 100 and is connected to the interior of the cylinder body 20. It can fill the cylinder body 20 with liquid through the down-leading fast charging pipeline system 10, and can also release the filled liquid through the down-leading fast charging pipeline system 10.
[0020] like Figure 1 , 2 As shown, the down-feed fast charging pipeline system 10 includes: a distribution head 1, a liquid inlet passage 2, a venting passage 3, a pressurization unit 4, a liquid outlet passage 5, and a safety accessory 6. The distribution head 1 is fixedly installed on the top of the bottle body 20 and can be fluidly connected to the inside of the bottle body 20. The liquid inlet passage 2, the venting passage 3, the pressurization unit 4, the liquid outlet passage 5, and the safety accessory 6 are integrated and installed on the distribution head 1, and are all fluidly connected to the inside of the bottle body 20 through the distribution head 1. The distribution head 1 distributes the fluid, reducing the connection between the pipeline and the bottle body 20, thereby reducing the leakage of cold energy.
[0021] The inlet passage 2 includes an inlet valve 21 and an inlet pipe 22 connecting the inlet valve 21 and the distributor head 1. The venting passage 3 includes a vent valve 31 and a vent pipe 32 connecting the vent valve 31 and the distributor head 1. The outlet passage 5 includes an outlet valve 51 and an outlet pipe 52 connecting the outlet valve 51 and the distributor head 1. The pressurization unit 4 and safety accessory 6 are located at the top of the bottle body 20, while the inlet valve 21, vent valve 31, and outlet valve 51 are located at the waist of the bottle body 20.
[0022] The top-down projection of the distributor head 1 is circular. The liquid inlet passage 2, vent passage 3, pressurization unit 4, liquid outlet passage 5, and safety accessory 6 are arranged at intervals along the circumference of the distributor head 1 to avoid mutual interference between the valves of each passage during operation and improve the convenience of operation.
[0023] The inlet valve 21, the vent valve 31 and the outlet valve 51 all have valve stems, and each valve stem has an operating handwheel installed at the operating end away from its own valve body. If they are all installed on the top of the cylinder body 20, it will increase the space occupied by the insulation gas cylinder 100, which will easily affect the storage and transportation of the insulation gas cylinder 100 and increase the difficulty of operation.
[0024] The upper parts of the inlet pipe 22, the vent pipe 32 and the outlet pipe 52 are located at the top of the bottle body 20 and connected to the distribution head 1. The lower parts of each pipe extend from top to bottom along the outer wall of the bottle body 20 and are connected to the corresponding valves, realizing the integrated installation of the bottom fast charging pipeline system 10 without occupying the space at the top of the bottle body 20, thus reducing the space occupied.
[0025] The inlet passage 2, vent passage 3, outlet passage 5, and safety accessory 6 are all equipped with support clamps 7. The inlet pipe 22, vent pipe 32, and outlet pipe 52 are each supported on the outer surface of the cylinder body 20 by at least one support clamp 7. In this embodiment, a support clamp 7 is provided at the connection between each pipe and the corresponding valve to strengthen the support of each valve and prevent the insulated gas cylinder 100 from being damaged during transportation.
[0026] The inlet valve 21 is a shut-off valve and is relatively heavy. In order to strengthen the support of the inlet valve 21, a support tube clamp 7 is provided at both the inlet port 211 and the outlet port 212 of the inlet valve 21. The bottle body 20 is supported by a pair of support tube clamps 7. The inlet port 211 is for liquid to enter, and the outlet port 212 is connected to the inlet pipe 22.
[0027] The liquid inlet passage 2 also includes a rotary retainer 23, which is installed at and connected to the liquid inlet 211 of the liquid inlet valve 21. The rotary retainer 23 has a filling port 231 for connecting to an external filling tube. The filling port 231 faces away from the bottle body, and its centerline is perpendicular to the centerline of the bottle body 20. The filling port 231 of the rotary retainer 23 and the external filling tube are connected by a slip-fit connection, which can adapt to different filling tubes in different scenarios and is easy to disassemble and assemble.
[0028] The nominal diameters of the inlet pipe 22 and inlet valve 21 are both 25 mm, larger than those of traditional insulated gas cylinders, significantly improving liquid flow efficiency. The nominal diameters of the vent pipe 32 and vent valve 31 are both 15 mm, larger than those of traditional insulated gas cylinders, increasing the rate at which gas is discharged from the cylinder body 20 during filling, thus maintaining a larger pressure difference, increasing filling speed, and reducing gas loss. The rapid filling of the down-leading fast-filling pipeline system 10 significantly improves the filling efficiency of insulated gas cylinders, enabling the filling of large quantities of liquid in a short time, thereby reducing labor costs and operating expenses, and improving cylinder turnover efficiency.
[0029] The valve stems of the inlet valve 21, vent valve 31, and outlet valve 51 increase the circumferential space occupied by the insulated gas cylinder 100 in the circumferential direction of the cylinder body 20. In order to reduce the space occupied, the valve stems of each valve are inclined towards the outer surface of the cylinder body 20 in the circumferential direction of the cylinder body 20. Each valve stem has an operating end away from its own valve body, and the operating end of each valve stem is close to the outer surface of the cylinder body 20, which reduces the space occupied and does not affect the operation of each valve.
[0030] The pressurization unit 4 is used to increase the pressure in the down-feed fast-charging pipeline system 10 when the pressure inside the cylinder body 20 is low, so as to ensure normal filling. The liquid outlet passage 5 is used to output the liquid inside the cylinder body 20. The safety accessory 6 is used to release pressure when the pressure in the down-feed fast-charging pipeline system 10 is too high, thereby ensuring the safe use of the insulated gas cylinder 100.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made without departing from the spirit and scope of this application. The scope of protection claimed by this application is defined by the appended claims, specification, and their equivalents.
Claims
1. A down lead fast fill line system for a vertical welded insulated cylinder, characterized in that, The device includes a distribution head installed on the top of the cylinder body of the insulated gas cylinder, and an inlet passage, a vent passage, a pressurizing unit, an outlet passage, and safety accessories integrated on the distribution head. The distribution head is connected to the interior of the cylinder body. The inlet passage, vent passage, pressurizing unit, outlet passage, and safety accessories are all connected to the interior of the cylinder body through the distribution head. The inlet passage includes an inlet valve and an inlet pipe connecting the inlet valve and the distribution head. The vent passage includes a vent valve and a vent pipe connecting the vent valve and the distribution head. The outlet passage includes an outlet valve and an outlet pipe connecting the outlet valve and the distribution head. The pressurizing unit and safety accessories are located on the top of the cylinder body, and the inlet valve, vent valve, and outlet valve are located on the waist of the cylinder body.
2. The down-lead quick charging plumbing system of claim 1, wherein, The top-down projection of the dispensing head is circular, and the liquid inlet passage, venting passage, pressurizing unit, liquid outlet passage, and safety accessories are arranged at intervals along the circumference of the dispensing head.
3. The down-lead fast charging plumbing system of claim 1, wherein, The liquid inlet passage, vent passage, liquid outlet passage, and safety accessories are all equipped with support clamps.
4. The down-lead quick charging plumbing system of claim 3, wherein, The inlet pipe, vent pipe, and outlet pipe are each supported on the outer surface of the bottle body by at least one of the support pipe clamps.
5. The down-lead quick charging plumbing system of claim 3, wherein, The liquid inlet valve has a liquid inlet for filling and a liquid outlet connected to the liquid inlet pipe. A support pipe clamp is respectively provided at the liquid inlet and the liquid outlet to support the liquid inlet valve on the bottle body.
6. The down-lead quick charging plumbing system of claim 5, wherein, The liquid inlet passage also includes a rotary clamp, which is installed at the liquid inlet of the liquid inlet valve and connected to the liquid inlet. The rotary clamp has a filling port for connecting an external filling pipe. The filling port faces away from the bottle body, and the center line of the filling port is perpendicular to the center line of the bottle body.
7. The down-lead fast charging plumbing system of claim 1, wherein, The valve stems of the inlet valve, the vent valve, and the outlet valve are all inclined towards the outer surface of the bottle body in the circumferential direction. Each valve stem has an operating end that is away from its own valve body, and the operating end of each valve stem is close to the outer surface of the bottle body.
8. The down-lead fast charging plumbing system of claim 1, wherein, The nominal diameter of the liquid inlet pipe is 25mm, and the nominal diameter of the liquid inlet valve is 25mm.
9. The down-lead fast charging plumbing system of claim 1, wherein, The nominal diameter of the vent pipe is 15mm, and the nominal diameter of the vent valve is 15mm.