RU2000123739A - METAL LAYER, METALLOPLASTIC HIGH PRESSURE CYLINDER (OPTIONS) AND METHOD FOR PRODUCING A HIGH PRESSURE METAL PLASTIC CYLINDER - Google Patents

Claims (1)

1. A metal liner of a metal-plastic high-pressure cylinder containing two bottoms and a middle part with a longitudinal axis, while on the side surface of the middle part there are transverse corrugations having ridges, troughs and side walls connecting the ridges and troughs, and in the spaces between the ridges there are corrugations covering the liner from the outside, intermediate elements ensuring the safety of the corrugations from the action of increased internal pressure, characterized in that the liner is made with the possibility of elastic compression and tension along odolnoy axis.  2. The metal liner according to claim 1, characterized in that in the spaces between the crests of the corrugations between the intermediate element and the side walls of the corrugations facing it, cavities are formed that allow elastic deformation of the side walls of the corrugations.  3. The metal liner in paragraphs. 1 and 2, characterized in that the size of the intermediate elements in the transverse direction is at least 0.5 of the height of the corrugations.  4. The metal liner in paragraphs. 1-3, characterized in that the intermediate elements and the metal liner have close elastic moduli, ensuring the joint operation of the metal liner and the intermediate elements.  5. The metal liner in PP. 1-4, characterized in that the corrugations have a ring shape.  6. The metal liner in PP. 1-4, characterized in that the corrugations are made along a helical line along the longitudinal axis, and a metal wire is wound between the corrugations of the corrugations, the turns of which are intermediate elements.  7. A metal-plastic high-pressure cylinder containing an external power plastic shell and an internal metal sealed liner having a longitudinal axis between the bottoms, while at least part of the side surface of the liner has transverse corrugations containing ridges, troughs and side walls connecting the ridges and troughs, and between the crests of the corrugations are placed, covering the liner from the outside, intermediate elements ensuring the safety of the corrugations under the action of increased internal pressure, characterized in that the liner is made nen with the possibility of elastic compression and tension along the longitudinal axis with a change in the internal pressure of the cylinder.  8. A metal-plastic high-pressure cylinder according to claim 7, characterized in that the intermediate elements and the metal liner have similar elastic moduli, ensuring the joint operation of the metal liner and the intermediate elements.  9. The metal-plastic cylinder of high pressure according to paragraphs. 7 and 8, characterized in that the intermediate elements are installed with the possibility of displacement along the longitudinal axis and elastic deformation of the side walls of the corrugations.  10. A metal-plastic cylinder of high pressure according to paragraphs. 7-9, characterized in that it is made with the possibility of moving the crests of the corrugations and intermediate elements along the inner surface of the power shell and in each gap between two adjacent ridges of the corrugations formed cavities bounded by the surface of the intermediate element, the side walls of the corrugations and the inner surface of the outer power shell.  11. The metal-plastic cylinder of high pressure according to paragraphs. 7-10, characterized in that the external power plastic shell contains a dry layer facing the surface of the metal liner. 12. A metal-plastic high-pressure cylinder according to claim 7, characterized in that the liner has a cylindrical part between the bottoms, and the intermediate elements have a circular cross-section, and for a given number of cylinder loading cycles, the number of corrugations is determined by the dependence:

where σ _MAX is the maximum allowable stress in the corrugation material;
R is the radius of the liner to form corrugations;
h is the liner wall thickness;
L _p is the length of the cylindrical part of the liner;
d is the diameter of the intermediate element;
13. A metal-plastic cylinder of high pressure according to paragraphs. 7-12, characterized in that the corrugations have an annular shape, and the intermediate elements are made in the form of metal rings.  14. The metal-plastic cylinder of high pressure according to paragraphs. 7-13, characterized in that the corrugations are made along a helical line along the longitudinal axis, and a metal wire is wound between the crests of the corrugations, the turns of which are intermediate elements.  15. The metal-plastic high-pressure cylinder according to claim 14, characterized in that the corrugations are formed along the turns of the wire by plastic deformation of the liner under the action of increased internal pressure.  16. A metal-plastic high-pressure cylinder containing an internal metal sealed liner, an external power plastic shell and a gas-conducting channel separated from the power-shell by an elastic gas-tight layer made along a helical line along the side surface of the liner, characterized in that the gas-conducting channel is formed by a cavity between the ridges of the transverse corrugations, made along a helical line on the side surface of the liner.  17. A high pressure metal-plastic cylinder according to claim 16, characterized in that a wire is laid between the corrugations of the corrugations.  18. A method of manufacturing a metal-plastic high-pressure cylinder, comprising applying to the metal liner having a middle part between the bottoms, an external power plastic shell, characterized in that corrugated elements are put on the middle part of the metal liner, covering the liner in the transverse direction with a given step along the longitudinal axis , and a metal liner with an external power plastic shell deposited on top of a metal liner with corrugating elements is loaded with a raised inner low pressure to plastic deformation of the liner material with the formation of corrugations between the corrugating elements.  19. The method according to p. 18, characterized in that on the middle part of the metal liner along a helical line with a predetermined pitch wound a metal wire, the turns of which are corrugating elements.  20. The method according to p. 18, characterized in that the outer plastic power shell is formed by winding on the surface of the liner a tow of high modulus fiber, while at least the first layer is wound from a dry tow, and subsequent layers of the tow impregnated with a binder.  21. The method according to p. 20, characterized in that an elastic gas-tight layer is applied to the dry layer.  22. The method according to PP. 18 and 19, characterized in that the corrugations are formed at a test internal pressure exceeding the working pressure, while simultaneously crimping the metal-plastic container.  23. The method according to PP. 18 and 19, characterized in that the corrugations are formed by internal pressure exceeding the test pressure, while the crimping of the metal-plastic cylinder is carried out after corrugation.