Anti-rotation device of thin-wall storage and transportation gas cylinder

Abstract

The invention discloses an anti-rotation device of a high-pressure thin-wall storage and transportation gas cylinder. The anti-rotation device comprises a flange connected with a frame, and further comprises a storage and transportation gas cylinder and a pressing block, the pressing block is arranged at the periphery of a bottleneck of the storage and transportation gas cylinder, and the pressingblock is connected with the flange, wherein the pressing block comprises an upper pressing block body and a lower pressing block body, the lower pressing block body is provided with a cavity, and theupper pressing block body is embedded into the lower pressing block body. According to the anti-rotation device, circumferential rotation and axial movement of the high-pressure thin-wall storage andtransportation gas cylinder in the transportation process are prevented, the phenomena of rotation and movement of the storage and transportation gas cylinder are avoided, and therefore it is guaranteed that the high-pressure thin-wall storage and transportation gas cylinder can be safely transported while the transportation gas cylinder is light in self-weight and the capacity is large.

Description

technical field [0001] The invention relates to an anti-rotation device for an air storage cylinder, in particular to an anti-rotation device for a thin-walled air storage cylinder. Background technique [0002] Compared with steel gas cylinders, wound gas cylinders have light weight, large volume, and large loading capacity, which effectively reduces unit transportation costs and conforms to the national policy of "energy saving and emission reduction". However, since the seamless steel pipes used for gas cylinders are formed by hot spinning, the uneven thickness in the circumferential direction of the seamless steel pipes during the hot rolling process will lead to the eccentricity of the center of gravity of the steel pipes. This phenomenon will not disappear during the manufacture of gas cylinders, so The processed gas cylinders also have eccentricity, which can easily lead to the circumferential rotation of the gas cylinders during transportation. At the same time, due ...

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Problems solved by technology

However, since the axial direction of the connection thread of the bottle neck of the gas cylinder needs to be provided with a positioning hole, the outer diameter of the positioning hole needs to be 6 mm, which will cause the thickness of the gas cylinder to be reduced at this position, so the anti-rotation structure is still not applicable to thin-walled gas cylinders

[0007] The following problems exist in the prior art: the structure for preventing the rotation of the gas cylinder in the prior art needs to set a positioning hole at the bottleneck of the gas cylinder, and install a pin hole in the positioning hole. Due to the current light weight, large volume, and large loading capacity The inner liner and the neck wall of the wound gas cylinder that reduces the unit transportation cost are relatively thin. Setting a positioning hole in the neck wall of the gas cylinder will reduce the thickness of the neck wall. The pin hole is machined in the direction or axial direction, and the anti-rotation pin can be used to prevent the rotation of the cylinder

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