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A method for making seamlessly connected composite material pressure vessels using auxiliary tooling

A technology for pressure vessels and composite materials, applied in the direction of container discharge methods, pressure vessels, container filling methods, etc., can solve the problems of single lining wall thickness, reduce lining, damage tolerance, etc., and achieve convenient use and weight reduction , the effect of simple structure

Active Publication Date: 2022-05-27
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for making seamlessly connected composite material pressure vessels using auxiliary tooling to solve the problem that the wall thickness of the inner liner proposed in the above background technology cannot be locally reinforced, and it is necessary to carry out repairs on the connecting parts of the head. Reprocessing, while welding forming often reduces the damage tolerance of the lining due to the existence of welding defects

Method used

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  • A method for making seamlessly connected composite material pressure vessels using auxiliary tooling
  • A method for making seamlessly connected composite material pressure vessels using auxiliary tooling
  • A method for making seamlessly connected composite material pressure vessels using auxiliary tooling

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Embodiment 1

[0028] A seamless joint composite pressure vessel, such as figure 1 As shown, the inner lining is included, and the inner lining includes two symmetrically arranged left and right heads 1 and 2 and a cylinder 3 located between the left and right heads 1 and 2. The left and right heads 1 and 2 2 both have a head straight edge 10, the outer wall of the outer end of the head straight edge 10 is provided with a sealing groove 6, a sealing element 5 is arranged in the sealing groove 6, and the sealing groove 6 is used to install the sealing element to ensure the sealing effect, and the head is straight. The root of the side 10 is provided with an end face groove 4, which is used to limit the leakage failure of the end of the cylinder 3 due to expansion and deformation. The outer wall of the head nozzle 9 on the side of the head 1 is provided with a left-hand thread 7, and the outer wall of the head nozzle 9 on the side close to the right head 2 is provided with a right-hand thread ...

Embodiment 2

[0038] like figure 2 As shown, the present invention provides an auxiliary tool for seamless connection of composite pressure vessels on the basis of Embodiment 1, comprising a threaded rod 14 for supporting and transmitting torque, and the outer parts of the two head nozzles 9 are respectively The left-handed reducing nut 11 and the right-handed reducing nut 12 are threadedly connected, the left-handed reducing nut 11 represents the winding support end, the right-handed reducing nut 12 represents the torque supply end of the winding system, the left-handed reducing nut 11 and the right-handed reducing nut 12 and the head nozzle 9, add an adjusting gasket 13 of appropriate thickness and press fit to ensure the sealing effect. There is a clearance fit between the two ends of the threaded rod 14, and the two ends of the threaded rod 14 are respectively threaded with the left-handed reducing nut 11 and the right-handed reducing nut 12. The outer ends of the left-handed reducing ...

Embodiment 3

[0048] On the basis of Embodiment 1, the present invention also provides an auxiliary forming tool for the composite pressure vessel structure, such as Figure 7 As shown, a first conical head body 24 and a second conical head body 25 having an axial nozzle 27 are formed on the outer surfaces of the first conical head body 24 and the second conical head body 25 The conical surface 28; the thin-walled cylindrical member 3 that cooperates with the conical surface 28; There are various left-handed reducing nut 11 and right-handed reducing nut 12, in which the left represents the winding support end, the right represents the torque supply end of the winding system, and the left-handed reducing nut 11 and the right-handed reducing nut 12 and the axial nozzle 27 are properly Adjust the thickness of the washer 13 and press fit, the threaded rod 14 is threaded through the left-handed reducing nut 11 and the right-handed reducing nut 12, and then the inner and outer thread nut 15 and t...

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Abstract

The invention relates to the technical field of seamlessly connected composite material pressure vessel structure, in particular to a method for manufacturing a seamlessly connected composite material pressure vessel by using auxiliary tooling, including an inner liner, and the inner liner includes two symmetrically arranged left and right seals The head and the cylinder between the left head and the right head. Both the left head and the right head have straight sides of the head. The outer wall of the outer end of the straight side of the head is provided with a sealing groove, and a sealing element is arranged in the sealing groove. , The root of the straight edge of the head is provided with an end face groove, and the outer surface of the left head and the right head is provided with a head connection in the axial direction. The invention is simple in structure, easy to use, can effectively improve the utilization rate of materials, further reduce the weight of the pressure vessel, and improve the reliability of the pressure vessel; it can replace the welding seam to realize the axial continuity between the head and the cylinder under internal pressure conditions; The ability of the head and cylinder to withstand high-pressure liquid and high-pressure gas.

Description

technical field [0001] The invention relates to the technical field of seamless connection of composite material pressure vessel structures, in particular to a method for manufacturing a seamless connection of composite material pressure vessels by using auxiliary tooling. Background technique [0002] Lightweight pressure vessels can be used for storage vessels with higher internal pressure levels (eg, gas storage vessels and liquid storage vessels), and are widely used in chemical, aerospace, and new energy vehicle fuel storage tanks. With the continuous progress of industrial and national defense equipment, composite pressure vessels are developing in the direction of large size, high parameterization and light weight, which puts forward higher and higher requirements for materials, structures and efficient preparation processes. As the main direction of the development of lightweight pressure vessels, the composite material wound metal lined pressure vessel has received ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C1/06F17C13/00F17C13/06
CPCF17C1/06F17C13/00F17C13/06
Inventor 朱晓磊顾付伟陆晓峰陈亮方岱宁
Owner NANJING TECH UNIV