Fiberglass tank high pressure and method of its manufacture

 

(57) Abstract:

Fiberglass high-pressure bladder contains external power shell made of composite material and an inner sealed envelope of gas-tight material. The container also contains two metal flange, with the same design and installed at opposite poles of the cylinder, one of which has a hole. Internal sealed shell is made of a thin bottom layer and the top layer of a composite material. The bottom layer sealed shell is made of layers of aluminum foil, covering the cylindrical part of the cylinder and end plates of thin sheet aluminum, adjacent overlapping the foil and which is the bottom of the container. In the method of manufacturing a fiberglass tank initially form the lower layer of the inner shell causing the shell layers of foil, which overlapped with both sides impose end of the Cup, while connecting them with adhesive. Then carry out the winding of the blank from steklolenta impregnated polymeric binder, molded inner sealed envelope. After curing of the binder it is cut perpendicular to the longitudinal axis into two equal ATEM, using the inner shell as the mandrel, re-wound the glass before the formation of the external power shell. The method improves the manufacturability of the container. 2 S. and 2 C.p. f-crystals, 3 ill.

The invention relates to designs of fiberglass tanks reusable, working under pressure and allowing to simplify the manufacturing method, and method of manufacturing cylinders.

The invention can be used in the fuel systems of aircraft, helicopters and vehicles operating on gas, as containers for the storage of spent fuel, and other systems that use compressed and liquefied gases in the temperature range from - 50oC to +50oC.

Of analogues of the prior art "Container" containing sealed metal shell connected with spherical bottoms, covered by an outer shell made of composite material (SU inventor's certificate N 161019, 5 F 17 C 1/00, application N 4622576/31-26 from 13.12.88. Applicant: Institute of electric welding named. E. O. Paton. Authors L. M. Lobanov, R. C. Tomaszewski and others Published in the Bulletin "Inventions" from 30.11.90).

A disadvantage of the known analogue is the most close to the number of essential features of the prototype device of the invention can be adopted Cylinder high pressure", includes external power shell made of composite material and a metal flange with a hole (SU inventor's certificate N 2037735, 6 F 17 C 1/00, application for invention N 92014577/26 from 25.12.92, the authors frost N. G. and others. The applicant is: sole proprietorship firm "Elina-T", published in the Bulletin "Inventions" N 17 1995, page 192).

The disadvantage of a high-pressure bladder, taken as a prototype, is a low-tech tank, and less resources in connection with different strength characteristics of the elements of the container.

Of analogues of the prior art the Method of manufacturing a multilayer pressure vessels", which includes the winding strip material on a Central shell (SU inventor's certificate N 1366269, B 21 D 51/24, the application for invention N 4096880/31-27 from 23.07.86, the authors of the summer Palace of Doganci and C. B. Romaszewska. Applicant: Moscow Institute of chemical engineering, published in the Bulletin "Inventions" N 2 15.01.88).

The disadvantage of the invention is the complexity of the technological process of manufacturing multilayer vessels and smaller reliability and durability compared to the claimed invention, the Method of manufacturing the balloon.The disadvantage of this method is the complexity of the technological process of manufacture of the container, as well as his lesser strength, reliability and durability, the need to use diverse complex technical processes. The technical result of the invention, i.e., improving manufacturability, reliability and durability of the device design fiberglass tank high pressure is achieved by the fact that in the high-pressure bladder containing the external power shell made of composite material, the internal sealing sheath of gas-tight material, a metal flange with a hole, the said cylinder is provided with a second metal flange, identical in design to the first, but without through holes mounted at the bottom at the other end of the cylinder, p is the frame material, with the bottom layer sealed shell made teams and consists of one or more layers of aluminum foil, covering the cylindrical part of the cylinder and end plates of thin-walled aluminum, forming the bottom of the container, adjacent overlapped on aluminum foil, and all layers of the internal hermetic shell connected with a method and with an external power shell using adhesive.

This technical result improve the manufacturability of the container is achieved by the fact that in the construction of the container when the manufacturer uses polymer composite material (fiberglass), which is made outside the load-bearing layer and the top layer sealed shell, and a simple means of fastening them together by means of adhesive.

The above technical result increased reliability and durability is achieved by the same deformation and strength characteristics of the material of the sheath, so as layers of a composite material (fiberglass) when loading work synchronously, without creating congested zones, as in the case of the use of dissimilar materials (glass and steel).

Crie, that is, the winding machine for the manufacture of both internal and external shells.

In addition, under item 2 effect of improving the processability of the bottle and also to increase the strength and durability of the design is achieved by the fact that the flanges made teams containing United glue the inner and outer parts, and a nut, clamping these parts to each other, and the protrusion of the inner part of the flange smoothly adjoins the inner sealed envelope, and its cylindrical surface passing through the axial hole of the cylindrical outer part of the flange, the outer cylindrical surface of the inner part of the flange nut installed so that the bottom of the inner hermetic shell made squeezed between the inner and outer portions of the flange and connected with them by means of an adhesive (glue), and the inner surface of the external power shell mated with the outer surface of the flange.

The connection of the above-mentioned surfaces using adhesive provides sealing inner lining, interfacing with external power shell and allows to obtain high-efficiency hermetic connection on these surfaces, to improve the reliability of drinking, preparing container, improve its processability in comparison with the prototype - method of manufacturing a container comprising winding a strip workpiece predominantly cylindrical shell to the formation of the multilayer cylinder and forming openings, is achieved by first forming a thin layer of inner hermetic shell by drawing on the Central part of the mandrel - shell of one or more layers of aluminum foil, which overlapped with both sides impose end Cup of thin-walled aluminum, forming the bottom of the tank and connect them together using adhesive, then perform the above operation of winding steklolenta impregnated polymeric binder, with the formation of the adhesive bond between the fiberglass and the inner layer of thin-walled aluminum, forming the inner sealing sheath, after hardening of the binder it is cut perpendicular to the longitudinal axis into two equal halves, the bottoms of which are calibrated cylindrical holes, install them in metal flanges, after which the two halves of the internal hermetic shell stick together among themselves and with metal flanges by means of adhesive, and then using nutrinitonal polymeric binder, before the formation of multi-layer outer shell, i.e., the form of the power envelope of composite material (fiberglass). This method is technologically simple, increases strength and durability of the design of the container due to the fact that the walls of the container, there is tension, optimally distributed over the layers, and subsequent loading of the cylinder working pressure layers are loaded evenly.

The device fiberglass tank high pressure is illustrated by drawings.

In Fig. 1 schematically shows a General view of GRP tank high pressure in the section.

In Fig. 2 presents a cross-section of the layers sealed and the external power shells (Ref. 1 of Fig. 1).

In Fig. 3 shows in section the flange and the bottom of the tank.

Fiberglass tank high pressure consists of an inner air-tight containment of the gas-tight material that includes a lower thin layer, which in turn made teams and consisting of one or more layers of aluminum foil 1 (Fig. 1,2,3), covering the cylindrical part of the container, and the end cups-bottoms 2 (Fig. 1,2,3) of thin-walled aluminum, Mgr is tion of fiberglass and is formed by winding steklolenta, impregnated with a polymeric binder, the lower thin layer of 1.2 (Fig. 1,2,3) internal sealed shell, and external power shell 4 (Fig.1,2,3), made of fiberglass, and is formed by winding steklolenta impregnated polymeric binder, the upper layer 3 (Fig. 1,2,3) internal sealed shell. All layers of the internal hermetic shell are connected together by means of adhesive 5 (Fig. 2,3). On one side of the tank on the bottom is a through hole 6 (Fig. 1,3), which has a flange with a through hole, at the opposite pole of the container on the bottom has a second flange without through holes, with the same design with the first flange. Both flange made teams and consist of an inner part 7, including the ledge, smoothly adjacent to the inner sealed envelope, to the lining of the bottom 2 of the container, and a cylindrical surface (Fig. 3) passing through the axial hole of the cylindrical outer part of the flange 8. On the cylindrical surface of the inner part of the flange 7 and the axial hole of the outer part is made, the thread that connects the elements of the flange 7, 8 between the nut 9 (Fig. 3) so that the bottom of the inner sealed oblock the

The invention of "Fiberglass tank high pressure and the manufacturing method are industrially applicable.

1. Fiberglass high-pressure bladder containing the external power shell made of composite material and an inner sealed envelope of gas-tight material, two metal flange, with the same design and installed at opposite poles of the cylinder, one of which has a hole, characterized in that the internal impermeable membrane made of thin-walled lower layer and the upper layer of composite material, with the bottom layer sealed shell made teams and consists of one or more layers of aluminum foil, covering the cylindrical part of the cylinder and end plates of thin sheet aluminum, adjacent overlapped on aluminum foil and which is the bottom of the container, all layers of the internal hermetic shell connected with each other and with external power shell using adhesive.

2. Fiberglass tank high pressure under item 1, characterized in that each of the said flanges made a reservoir containing the inner part with the tab connected by adhesive to the inner sealed envelope, and its cylindrical surface passing through the axial hole of the outer part of the flange, the outer cylindrical surface of the outer part of the flange is installed nut, clamping these parts together so that the bottom of the inner hermetic shell made squeezed between the inner and outer portions of the flange and connected with them by means of adhesive, and the inner surface of the external power shell mated with the outer surface of the flange.

3. Fiberglass tank under item 1 or 2, characterized in that the external power shell and the top layer internal hermetic shell made of fiberglass.

4. A method of manufacturing a container comprising a winding of steklolenta impregnated polymeric binder, the shell before the formation of multi-layered shell, wherein the first form a thin layer of inner hermetic shell by drawing on the Central part of the mandrel-shell of one or more layers of aluminum foil, which overlapped with both sides impose end cups from sheet aluminum, forming the bottom of the tank, and connect them together using adhesive, then perform the above operation amodele curing of the binder it is cut perpendicular to the longitudinal axis into two equal halves, in the bottoms of which are calibrated cylindrical holes, install them in metal flanges, after which the two halves of the internal hermetic shell stick together among themselves and with metal flanges by means of adhesive, and then, using the internal sealing sheath as the mandrel, re-implement the wound on her steklolenta impregnated with a polymeric binder to form a multi-layered external power shell made of composite material and necks.

 

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FIELD: plastic working of metals, namely manufacture of high-pressure bottles.

SUBSTANCE: method comprises steps of forming shell; swaging at least one open end of shell; forming bottom and mouth while making at least two mutually joined cone surfaces and increasing central angle from shell to mouth; at least after one swaging operation performing heat treatment of swaged end of shell. High-pressure bottle includes shell and two bottoms. One bottom has mouth for placing locking means. Bottom and mouth are made as one piece. Bottom from shell until mouth is in the form at least of two joined lateral surfaces of circular regular truncated cones. Each such joint is performed due to joining lateral surfaces of truncated cones along lines of bases of their small and large diameters respectively. Said joints may be smooth, with radius transitions.

EFFECT: simplified design of bottle, enhanced technological effectiveness of making it.

6 cl, 4 dwg

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