Nitrogen purge of compressor dry seal
First Claim
1. A method for operating a gas compressor having one or more dry seals, the method comprising:
- controlling, by a controller, delivery of a first barrier gas to the one or more dry seals;
initiating, by the controller, operation of the compressor to produce a compressed process gas;
receiving, at the controller, sensor information from one or more sensors disposed within the compressor for a period of compressor operation, the sensor information including a temperature of the one or more dry seals;
controlling, by the controller, delivery of a second barrier gas different from the first barrier gas to the one or more dry seals, the delivery of the second barrier gas being based on the sensor information; and
terminating the delivery of the first barrier gas based on the sensor information.
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Accused Products
Abstract
Systems and method for operating a gas compressor are disclosed herein. A compressor can have one or more dry gas seals surrounding the central axle of the compressor. The dry gas seals can each be pressurized with a barrier gas or other fluid supply providing a barrier within the dry gas seal. The method can include controlling delivery of a first barrier gas to the one or more dry seals during a startup or initiation of the compressor. The method can include controlling delivery of a second barrier gas different from the first barrier gas to the one or more dry seals based on the information received from sensors disposed within the compressor that can measure, inter alia, dry seal temperature and pressure within the system. The method can further include terminating the delivery of the first barrier gas based on the sensor information.
15 Citations
20 Claims
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1. A method for operating a gas compressor having one or more dry seals, the method comprising:
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controlling, by a controller, delivery of a first barrier gas to the one or more dry seals; initiating, by the controller, operation of the compressor to produce a compressed process gas; receiving, at the controller, sensor information from one or more sensors disposed within the compressor for a period of compressor operation, the sensor information including a temperature of the one or more dry seals; controlling, by the controller, delivery of a second barrier gas different from the first barrier gas to the one or more dry seals, the delivery of the second barrier gas being based on the sensor information; and terminating the delivery of the first barrier gas based on the sensor information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for delivering barrier gas to one or more dry seals of a compressor operable to output a compressed process gas, the system comprising:
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a first barrier gas supply device configured to provide a first barrier gas to the one or more dry seals; a second barrier gas supply device configured to provide a second barrier gas different from the first barrier gas, to the one or more dry seals; one or more sensors configured to provide sensor information, the sensor information including a temperature of the one or more dry seals; and a controller communicatively coupled to the first barrier gas supply device, the second barrier gas supply device, and the one or more sensors, the controller configured to, control delivery of the first barrier gas to the one or more dry seals, control initiation of the compressor to produce the process gas, receive the sensor information from one or more sensors during operation of the compressor and the one or more dry seals; control delivery of the second barrier gas in place of the first barrier gas based on the sensor information and a predetermined time. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method for operating a gas compressor having one or more dry seals, the method comprising:
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pressurizing the one or more dry seals by supplying a startup gas to the one or more dry seals; initiating operation of the compressor to produce a compressed process gas; monitoring a temperature of the produced compressed gas and the one or more dry seals; supplying a primary seal gas to the one or more dry seals, the delivery of the second barrier gas being based, at least in part, on the monitored temperature; and terminating the supplying of the startup gas to the one or more dry seals, based on supplying the primary gas seal. - View Dependent Claims (17, 18, 19, 20)
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Specification