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US 12,429,048 B2Granted
Packing case with degradation monitoring
AssigneeDover Pumps & Process Solutions Segment, Inc.
InventorsJason Craig Martin, Vitali Kvachnev
Life of this patent
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Abstract
A method of monitoring degradation of seals of a packing case includes receiving signals from a first temperature sensor installed in a first location in a housing of the packing case; receiving signals from a second temperature sensor installed in a second location in the housing of the packing case; computing, from the signals, a temperature differential between the first temperature sensor and the second temperature sensor at two or more times; and determining, at least in part from the temperature differential at the two or more times, a degradation indicator for at least one of the seals of the packing case.
Claims37
A method of monitoring degradation of seals of a packing case, the method comprising:
- receiving signals from a first temperature sensor installed in a first location in a housing of the packing case;
- receiving signals from a second temperature sensor installed in a second location in the housing of the packing case;
- computing, from the signals, a temperature differential between the first temperature sensor and the second temperature sensor at two or more times;
- and
- determining, at least in part from the temperature differential at the two or more times, a degradation indicator for at least one of the seals of the packing case, wherein the degradation indicator is based at least in part on a maximum differential temperature between the first temperature sensor and the second temperature sensor.
2 more elements
A monitoring system for a packing case having two or more seals and defining a cylinder-side and a driver-side, the monitoring system comprising:
- a first temperature sensor coupled to a housing of the packing case and configured to sense a temperature on the cylinder-side of one of the two or more seals;
- a second temperature sensor coupled to the housing and configured to sense a temperature on the driver-side of the one of the two or more seals;
- and
- a computing device communicatively coupled to the first temperature sensor and the second temperature sensor, the computing device configured to:
- receive signals from the first temperature sensor and the second temperature sensor;
- compute, from the signals, a temperature differential between the first temperature sensor and the second temperature sensor at two or more times;
- and
- determine, at least in part from the temperature differential at the two or more times, a degradation indicator for the one of the two or more seals of the packing case;
- wherein the two or more seals comprise:
- a pressure breaker;
- a first seal axially disposed on the driver-side of the pressure breaker;
- a second seal axially disposed on the drive-side of the first seal;
- and
- a third seal axially disposed on the driver-side of the second seal,
- wherein the one of the two or more seals is the third seal, and the first temperature sensor is axially disposed between the second seal and the third seal.
12 more elements
The monitoring system of 14, wherein:
- the system further comprises a third temperature sensor axially disposed on the cylinder-side of the of the second seal,
- the computing device is communicatively coupled to the third temperature sensor, and
- the computing device is configured to compute a temperature differential between the third temperature sensor and at least one of the first temperature sensor and the second temperature sensor.
A system comprising:
- a packing case assembly, comprising:
- a plurality of seals;
- a housing configured to hold at least two seals of the plurality of seals;
- an end plate coupled to the housing;
- a first temperature sensor coupled to a housing of the packing case and configured to sense a temperature on the cylinder-side of one of the at least two seals;
- and
- a second temperature sensor coupled to the housing and configured to sense a temperature on the driver-side of the one of the at least two seals;
- and
- a computing device communicatively coupled to the first temperature sensor and the second temperature sensor, the computing device configured to:
- receive signals from the first temperature sensor;
- receive signals from the second temperature sensor;
- compute, from the signals, a temperature differential between the first temperature sensor and the second temperature sensor at two or more times;
- and
- determine, at least in part from the temperature differential at the two or more times, a degradation indicator for the one of the at least two seals, wherein the degradation indicator is based at least in part on a maximum differential temperature between the first temperature sensor and the second temperature sensor.
11 more elements
A reciprocating compressor system comprising:
- a compression cylinder defining a compression chamber;
- a driver;
- a rod coupled between the driver and the compression cylinder, wherein the driver is operable to reciprocate the rod such that gas is compressed in the compression chamber;
- a packing case through which the rod passes between the compression cylinder and the driver, the packing case defining a cylinder-side and a driver-side, and comprising:
- a plurality of seals through which the rod passes;
- a housing configured to hold at least two seals of the plurality of seals;
- and
- an end plate coupled to the housing;
- and
- a packing case monitoring system, the packing case monitoring system comprising:
- a first temperature sensor coupled to a housing of the packing case and configured to sense a temperature on the cylinder-side of one of the at least two seals;
- a second temperature sensor coupled to the housing and configured to sense a temperature on the driver-side of the one of the at least two seals;
- and
- a computing device communicatively coupled to the first temperature sensor and the second temperature sensor, the computing device configured to:
- receive signals from the first temperature sensor and the second temperature sensor;
- compute, from the signals, a temperature differential between the first temperature sensor and the second temperature sensor at two or more times;
- and
- determine, at least in part from the temperature differential at the two or more times, a degradation indicator for at least the one of the at least two seals of the packing case.
15 more elements
A method of monitoring degradation of seals of a packing case, the method comprising:
- receiving temperature signals from at least two temperature sensors installed in a housing of the packing case, wherein the at least two temperature sensors comprise:
- a first temperature sensor installed in a first location in the housing;
- and
- a second temperature sensor installed in a second location in the housing;
- receiving pressure signals from one or more pressure sensors coupled to the housing of the packing case;
- computing, from the temperature signals, a temperature differential between the first temperature sensor and the second temperature sensor at two or more times;
- computing, from the pressure signals, a pressure at two or more times;
- and
- determining, based at least in part on the temperature differential at the two or more times and at least one pressure of the pressure at the two or more times, one or more degradation indicators for at least one of the seals of the packing case.
6 more elements
Dependencies are inferred from the claim text.