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US 12,595,793 B2Granted
Compressor
AssigneeHitachi Industrial Equipment Systems Co., Ltd.
InventorsAkihiro Yamamoto, Yoshiyuki Kanemoto, Zhijia Ren
Life of this patent
Estimating the term…
Abstract
Provided is a compressor including a compressor unit that includes a compressor body that compresses gas and a motor that drives the compressor body, and a controller that carries out the operation number control for a plurality of the compressor units. The plurality of compressor units are connected to the same pipe. The controller causes, while continuing the operation number control for the compressor units that are a target of the operation number control, the compressor unit excluded from the target of the operation number control to start.
Claims11
A compressor comprising:
- a compressor unit that includes a compressor body that compresses gas and a motor that drives the compressor body;
- and
- a controller that carries out operation number control for a plurality of the compressor units,
- wherein the plurality of compressor units are connected to a same pipe, and
- wherein the controller is configured to:
- carry out, while continuing the operation number control for the compressor units that are a target of the operation number control, a test operation for the compressor unit excluded from the target of the operation number control to start,
- determine whether or not the plurality of compressor units have an abnormality,
- cause the compressor unit that is determined to have the abnormality to stop, and exclude this compressor unit from the target of the operation number control, and
- cause the compressor unit that is determined to have the abnormality to restart, thereby carrying out the test operation for this compressor unit and to include this compressor unit into the target of the operation number control after the test operation while continuing the operation number control for the compressor unit determined not to have an abnormality.
6 more elements
A compressor comprising:
- an electromagnetic switch that switches between supply and interrupt of electric power to the motor;
- a compressor unit that includes a compressor body that compresses gas and a motor that drives the compressor body;
- and
- a controller that carries out operation number control for a plurality of the compressor units,
- wherein the plurality of compressor units are connected to a same pipe, and
- wherein the controller is configured to:
- carry out, while continuing the operation number control for the compressor units that are a target of the operation number control, a test operation for the compressor unit excluded from the target of the operation number control to start, and
- supply, in the test operation for the compressor unit excluded from the target of the operation number control, the electric power to the motor by the electromagnetic switch, thereby causing the compressor unit excluded from the target of the operation number control to operate at a constant speed for a predetermined time and to then cause this compressor unit to stop.
5 more elements
A compressor comprising:
- a compressor unit that includes a compressor body that compresses gas and a motor that drives the compressor body;
- an inverter that supplies electric power to the motor;
- and
- a controller that carries out operation number control for a plurality of the compressor units,
- wherein the plurality of compressor units are connected to a same pipe, and
- wherein the controller is configured to:
- carry out, while continuing the operation number control for the compressor units that are a target of the operation number control, a test operation for the compressor unit excluded from the target of the operation number control to start, and
- cause, in the test operation for the compressor unit excluded from the target of the operation number control, the motor of the compressor unit excluded from the target of the operation number control to operate at a lowest speed for a predetermined time and to then cause the motor to stop.
5 more elements
Dependencies are inferred from the claim text.