Safety vacuum supply gas cylinder
OwnerFeng Yuan Ku, Min-Kuang Changinventors
Life of this patent
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Abstract
A safety vacuum supply gas cylinder includes a cylinder body, a pipeline structure, first and second check valves (respectively having first and second check valve opening pressures Pc1, Pc2, wherein Pc1 is greater than an atmospheric pressure P0). The cylinder body has an opening and an internal space configured to store a gas, wherein the gas forms an internal pressure P2 smaller than P0. The pipeline structure, communicated with the opening, has first and second pipelines where the first and second check valves are respectively arranged. An external filling gas enters the cylinder body when a pressure of the external filling gas is greater than Pc1 and P2. The gas flows out when P2 is greater than Pc2 and an external environmental pressure.
Claims8
A safety vacuum supply gas cylinder, for storing a gas with a negative pressure and supplying the gas with a safety negative pressure operation, the safety vacuum supply gas cylinder comprising:
- a cylinder body, having an opening, wherein an internal space of the cylinder body is configured to store the gas, the gas forms the negative pressure in the internal space of the cylinder body, and the negative pressure is smaller than an atmospheric pressure;
- a pipeline structure, arranged inside the cylinder body, wherein the pipeline structure is communicated with the opening and comprises a first pipeline and a second pipeline;
- a first check valve, arranged in the first pipeline and having a first check valve opening pressure, wherein the first check valve opening pressure is greater than the atmospheric pressure, and an external filling gas enters the cylinder body via the first pipeline and the first check valve when a pressure of the external filling gas is greater than the first check valve opening pressure and the negative pressure;
- a second check valve, arranged in the second pipeline and having a second check valve opening pressure, wherein the gas stored in the cylinder body flows out of the cylinder body via the second pipeline and the second check valve when the negative pressure is greater than or equal to the second check valve opening pressure and an external environmental pressure of the cylinder body;
- and
- an adsorbent, arranged in the cylinder body to absorb the gas stored in the cylinder body.
Dependencies are inferred from the claim text.