Gas sampler
AssigneeShimadzu Corporation
InventorsShigeaki Shibamoto, Wenjian Lu, Ayaka Sato
Life of this patent
Estimating the term…
Abstract
A gas sampler (30) is provided with a connection portion (C1) connectable to a sample tank (20), a sample loop (PL) for holding a sample gas introduced from the sample tank (20) to the connection portion (C1), pneumatic switching valves (V1 to V6) for switching a flow path connected to the sample loop (PL), a control piping (81) for transmitting a driving pressure to the switching valves (V1 to V6), a pump (31) for suctioning an inside of the sample loop (PL), and a pressure accumulation tank (80) for accumulating the pressure generated by the operation of the pump (31) as a source pressure.
Claims8
A gas sampler for supplying a sample gas to a column of a gas analyzer, comprising:
- a connection portion connectable to a sample tank filled with the sample gas;
- a sample holding portion arranged to accommodate the sample gas to be introduced into the connection portion from the sample tank;
- a plurality of pneumatic switching valves configured to configure different flow paths within the gas sampler respectively corresponding to different switching configurations of the pneumatic switching valves, at least some of the flow paths being connected to the sample holding portion;
- control piping fluidly connected to the pneumatic switching valves, and configured to transmit driving pressure to the pneumatic switching valves to control a connection state of each pneumatic switching valve;
- a pump fluidly connected to the sample holding portion, and configured to apply suction inside the sample holding portion;
- and
- a tank fluidly connected to the control piping and the pump, and configured to accumulate pressure generated by an operation of the pump for a source pressure from which the driving pressure is derived.
A gas sampler for supplying a sample gas to a column of a gas analyzer, comprising:
- a connection portion connectable to a sample tank filled with the sample gas;
- a sample holding portion arranged to accommodate the sample gas to be introduced into the connection portion from the sample tank;
- a plurality of pneumatic switching valves configured to configure different flow paths within the gas sampler respectively corresponding to different switching configurations of the pneumatic switching valves, at least some of the flow paths being connected to the sample holding portion;
- control piping fluidly connected to the pneumatic switching valves, and configured to transmit driving pressure to the pneumatic switching valves to control a connection state of each pneumatic switching valve;
- a pump fluidly connected to the sample holding portion, and configured to apply suction inside the sample holding portion;
- and
- supply piping fluidly connected to the control piping and the pump, and arranged between the pump and the control piping to supply a pressure generated by an operation of the pump to the control piping as a source pressure of the driving pressure.
Dependencies are inferred from the claim text.