A kind of capsule energy storage device

Abstract

The application relates to a capsule accumulator, which belongs to the field of energy storage devices, and includes a casing and a capsule. One end of the casing is an air inlet, and the other end is an oil inlet. The air valve is connected, and the air valve rod with both ends is fixed in the intake valve. One end of the air valve rod is fixed with a diffusion rod extending into the capsule. The diffusion rod is provided with a vent hole. Both ends of the rod are connected, and one end is connected with the gas valve rod. One end of the extension rod is connected. The extension rod is sleeved outside the fixed rod and is slidingly connected with the fixed rod. The side walls of the fixed rod and the extension rod are evenly arranged in multiple rows along the axial direction. The exhaust hole, the exhaust holes on the fixed rod and the extension rod are respectively located on different generatrices of the fixed rod, and a first spring is fixed between the inner wall of the fixed rod and the end of the extension rod away from the gas valve rod. The present application has the effect of preventing the capsule from being damaged by the diffusion rod when the capsule shrinks.

Description

technical field [0001] The present application relates to the field of energy storage devices, in particular to a capsule energy storage device. Background technique [0002] Accumulator is a device specially designed for accumulating liquid under pressure. Liquid is incompressible in application, and the compressibility of gas is used to achieve the goal of storing energy. An accumulator is an energy storage device in a hydropneumatic system. It converts the energy in the system into compression energy or potential energy at an appropriate time and stores it, and when the system needs it, it converts the compression energy or potential energy into hydraulic or pneumatic energy and releases it, and resupplys the system. When the pressure of the system increases instantaneously, it can absorb this part of the energy to ensure the normal pressure of the whole system. [0003] At present, the Chinese utility model patent with the authorized announcement number CN204357791U di...

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Problems solved by technology

[0004] For the related technology mentioned above, the length of the diffusion rod is fixed. When the gas filling end fills the capsule with gas, the oil inlet end of the other end of the energy storage tank fills the energy storage tank with oil, and the oil compresses the capsule, and the air pressure in the capsule rises. High, when the system needs oil, the air pressure will discharge the liquid, the inventor believes that the capsule may touch the diffusion rod when it shrinks, and reciprocate for a long time, which may cause damage to the capsule

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