Marine gas cylinder group fixing device and structural deformation checking method thereof

Abstract

The invention relates to the field of marine high-pressure gas cylinder pressure regulating equipment, in particular to a marine gas cylinder group fixing device and a structural deformation checkingmethod thereof. The fixing device comprises a fixing frame, and the fixing frame comprises an upper limiting frame, a lower limiting frame, a bottom frame, a vertical supporting rod, an inclined supporting rod, a cross-shaped supporting rod set and a transverse supporting rod; the upper limiting frame and the lower limiting frame are divided into a plurality of upper square frame units and a plurality of lower square frame units respectively, supporting plate units are fixed in the lower square frame units, and tightening plate units are fixed in the upper square frame units. Clamps are arranged on the upper bottle body and the lower bottle body of a gas cylinder; each clamp comprises a movable clamping plate and a fixed clamping plate. The structural deformation checking method comprisesthe steps: carrying out finite element calculation model modeling on the fixing frame and the clamps; applying loads and boundary conditions of the clamps and the fixing frame under the two conditions; gradually loading and solving the structures of the clamps and the fixing frame. According to the fixing device and the structural deformation checking method thereof, the whole fixing device savesthe occupied space, and the environmental requirements for the swing angle and the swing period can be met.

Description

technical field [0001] The invention relates to the field of marine high-pressure gas cylinder pressure regulating equipment, in particular to a fixing device for a marine gas cylinder group and a method for checking structural deformation thereof. Background technique [0002] The gas storage pressure of high-pressure nitrogen cylinders is generally around 25MPa. If the cylinder body is damaged and leaks, it will cause a great safety accident. Therefore, it is not only necessary to check whether the connection parts are leaking, but more importantly, To prevent gas cylinders from falling over; common high-pressure gas cylinders are generally placed on a flat surface at the bottom, or the body of the cylinder is fixed on a shelf with a clamp to keep it in a specific placement posture, which requires less structure for the shelf , but it is not suitable for fixing gas cylinders on ships; since the hull shakes more seriously on the water surface, the rack for fixing gas cylind...

AI Technical Summary

Problems solved by technology

[0002] The gas storage pressure of high-pressure nitrogen cylinders is generally around 25MPa. If the gas cylinder body is damaged and leaks, it will cause a great safety accident. Therefore, it is not only necessary to check whether the connection parts are leaking, but more importantly, To prevent gas cylinders from falling over; common high-pressure gas cylinders are generally placed on a flat surface at the bottom, or the body of the cylinder is fixed on a shelf with a clamp to keep it in a specific placement posture, which requires less structure for the shelf , but it is not suitable for fixing gas cylinders on ships; since the hull shakes seriously on the water surface, the rack for fixing gas cylinders must be able to ensure that the swing angle is ±45° and the swing period is 3s~14s. In the long-term practical process, the gas cylinder will not fall off the shelf and fall over. In addition, due to the limited internal space of the ship, the number of high-pressure gas cylinders is large. How to ensure the stability of the structure and facilitate the disassembly of the gas cylinder? It is also the key point to be considered in the design of the gas cylinder rack while saving the space occupied by the cylinder

Images