EP2598755A1 - Method for operating a compressor - Google Patents
Method for operating a compressorInfo
- Publication number
- EP2598755A1 EP2598755A1 EP11741157.9A EP11741157A EP2598755A1 EP 2598755 A1 EP2598755 A1 EP 2598755A1 EP 11741157 A EP11741157 A EP 11741157A EP 2598755 A1 EP2598755 A1 EP 2598755A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- measurement
- pressure
- suction pressure
- final pressure
- pctr
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005259 measurement Methods 0.000 claims abstract description 50
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 28
- 238000007906 compression Methods 0.000 claims abstract description 4
- 238000012986 modification Methods 0.000 claims abstract description 3
- 230000004048 modification Effects 0.000 claims abstract description 3
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical compound FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 238000010606 normalization Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0246—Surge control by varying geometry within the pumps, e.g. by adjusting vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0284—Conjoint control of two or more different functions
Definitions
- the invention relates to a method for operating a
- Exceeding the third measured value or an application of the third measured value in comparison with the setpoint opens a bypass valve, so that the final pressure is lowered.
- surge limit control protects the control of the Bypass valves the compressor from damage caused by the
- Bypass valve opened unnecessarily, so that the efficiency of the system deteriorates. In the worst case, the valve opens so far that the throughput through the compressor is reduced to an unacceptable minimum and so the usually heavily dependent on the compression process connected
- the measured values measured also include a measurement of the throughput through the compressor.
- the invention has set itself the task, a
- the throughput is measured regularly by means of a differential pressure measurement via a metering orifice and can accordingly also be specified in the physical unit of a pressure and accordingly modified in the same way, particularly dimensionless, as the suction pressure and the final pressure. Basically, but also a different kind
- a preferred embodiment of the invention provides that, in normal operation, the suction pressure measurement and the
- the additional map can also be used if there should be a failure of the suction pressure measurement.
- Minimum setpoint is then formed according to the above approximation for the maximum pressure ratio.
- the formula for calculation d tute often contains the suction pressure, e.g. in the form V.
- Suction pressure can be given eg by the following formula:
- the measurement of the throughput in particular the measurement of the differential pressure fails over a metering orifice, it is useful in the invention, if of the
- Figure 2 shows the representation of a rule line from the
- FIG. 3 shows the illustration of an additional characteristic diagram for the surge limit regulator
- FIG. 4 is a flowchart of the invention
- FIG. 1 shows a compressor CO with the associated
- Auxiliary systems and a drive T which is designed here in the manner of a H exertgasexpanders.
- the compressor CO receives process fluid PF on a suction line SL at a
- Inlet pressure PA and compresses this to a final pressure PE while he promotes it to a pressure line PL.
- compressed process fluid PF is cooled after the compressor CO in a heat exchanger CL.
- Suction line SL of the compressor CO is by means of a
- Temperature measuring point TT an input temperature TE, by means of a volume measuring point FE via a pressure difference ⁇ a local orifice there a volume flow VF and measured by means of a simple pressure measuring point PAE the input pressure PA.
- a compromisesleitapparat ELA which is set to the angle of attack.
- the drive T is speed variable or a trained
- a quantity regulator MCTR controls the angle of incidence of the inlet guide device ELA by specifying a setpoint value S for the angle of attack.
- the actual value C for the angle of attack is at the
- volume controller MCTR transmitted from a position transmitter ZT.
- the pressure line behind the heat exchanger CL is the
- Pipe limit control is the control of a bypass valve BV that is designed as a control valve and controls the opening of a bypass BP, the pressure line PL with the
- Suction line SL closes short over a defined opening when the compressor CO threatens to reach the state of pumping.
- Figure 2 shows an operating point OP and a control line CTRL as an excerpt from the not fully shown here Control map CTFE.
- the y-coordinate of the illustrated diagram indicates the ratio of end pressure PE
- Input pressure PA again and the X coordinate, the ratio of the differential pressure ⁇ on the flow rate measurement to the input pressure PA.
- the measured ratio of the final pressure PE to the input pressure PA is the basis for determining the setpoint value TV of the surge limit controller PCTR.
- the actual value AV at the operating point OP is determined by the ratio of the
- Differential pressure ⁇ formed in relation to the input pressure PA The diagram shown essentially expresses a ratio of the compaction power on the Y-coordinate and the flow rate through the compressor CO on the X-coordinate.
- the surge limit control PCTR opens the
- Bypass valve BV when the operating point OP with respect to the flow rate reaches the target value TV or the surge limit line CTRL.
- the precision of the control can be additionally provided
- FIG. 3 shows a relationship between the angle of attack as an input quantity and minimum and maximum ratios between end pressures PE and input pressures PA shown in a substitute control characteristic field SCTFE, which is derived from the
- Pump limit control PCTR is implemented when the measurement of the inlet pressure or the final pressure or the amount fails. On the basis of the measurement of the angle of attack, these minimum and maximum pressure ratios between input and output can be determined and converted according to the sequence shown in FIG. 4 in the method according to the invention.
- FIG. 4 shows a flowchart of the invention
- a first step at least three measurements are made, in this case the input pressure PA, the final pressure PE and a differential pressure measurement ⁇ carried out to determine the throughput. If these measurements are less than 1) trouble-free (Y), the method goes to step 2), during which the operating point OP is determined by means of a control characteristic diagram CTFE and a nominal value TF based on the difference to the control line CTRL.
- the setpoint value TV is compared with the pressure difference ⁇ , wherein at a larger value of ⁇ compared to TV in a fourth step, the bypass valve BV remains closed and otherwise opened. If a fault of one of the measurements is present in method step 1), a further measurement d) is used for the evaluation in a replacement control characteristic SCTFE for
- step 3a Determination of a substitute setpoint ETV.
- step 3a a comparison is made in the same way as in step 3), here between the final pressure PE and the substitute setpoint TVE. If the final pressure PE be greater, in step 4) a closing of the
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010032652 | 2010-07-29 | ||
PCT/EP2011/062248 WO2012013530A1 (en) | 2010-07-29 | 2011-07-18 | Method for operating a compressor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2598755A1 true EP2598755A1 (en) | 2013-06-05 |
EP2598755B1 EP2598755B1 (en) | 2015-08-26 |
Family
ID=44629856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11741157.9A Active EP2598755B1 (en) | 2010-07-29 | 2011-07-18 | Method for operating a compressor |
Country Status (4)
Country | Link |
---|---|
US (1) | US9410551B2 (en) |
EP (1) | EP2598755B1 (en) |
CN (1) | CN103038516B (en) |
WO (1) | WO2012013530A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITCO20120056A1 (en) * | 2012-11-07 | 2014-05-08 | Nuovo Pignone Srl | METHOD OF OPERATING A COMPRESSOR IN CASE OF MALFUNCTION OF ONE OR MORE SIZES OF MEASUREMENT |
EP3004650A1 (en) * | 2013-05-29 | 2016-04-13 | Siemens Aktiengesellschaft | Method for operating a compressor, and arrangement with a compressor |
JP6152061B2 (en) * | 2014-02-19 | 2017-06-21 | 三菱重工業株式会社 | Centrifugal compressor, turbo refrigerator, supercharger, and control method of centrifugal compressor |
JP6152062B2 (en) * | 2014-02-19 | 2017-06-21 | 三菱重工業株式会社 | Centrifugal compressor, turbo refrigerator, supercharger, and control method of centrifugal compressor |
CN104763662B (en) * | 2015-02-15 | 2016-12-07 | 杭州和利时自动化有限公司 | The determination method and system in the side-flow type compressor operating space of variable parameter operation |
CN105257580A (en) * | 2015-11-17 | 2016-01-20 | 神华集团有限责任公司 | Control system and method used for reaction gas compressor |
US10208745B2 (en) * | 2015-12-18 | 2019-02-19 | General Electric Company | System and method for controlling a fluid transport system |
CN105571181B (en) * | 2016-01-12 | 2017-11-28 | 珠海格力电器股份有限公司 | Variable-frequency centrifugal water chilling unit and control and adjustment method thereof |
CN116357623B (en) * | 2023-03-14 | 2023-11-24 | 深圳市氢蓝时代动力科技有限公司 | Anti-surge control method of centrifugal air compressor for fuel cell |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3811230A1 (en) * | 1988-04-02 | 1989-10-26 | Gutehoffnungshuette Man | METHOD FOR PROTECTING A TURBO COMPRESSOR FROM PUMPS BY BLOW-OFF WITH A BLOW-OFF VALVE, AND DEVICE FOR CARRYING OUT THE METHOD |
US5508943A (en) | 1994-04-07 | 1996-04-16 | Compressor Controls Corporation | Method and apparatus for measuring the distance of a turbocompressor's operating point to the surge limit interface |
US5709526A (en) * | 1996-01-02 | 1998-01-20 | Woodward Governor Company | Surge recurrence prevention control system for dynamic compressors |
US5746062A (en) * | 1996-04-11 | 1998-05-05 | York International Corporation | Methods and apparatuses for detecting surge in centrifugal compressors |
CN1186536C (en) * | 2001-07-06 | 2005-01-26 | 中国科学院工程热物理研究所 | In-line predication and adaptive regulation method and device for surge of compression system |
CA2492465C (en) | 2002-08-06 | 2008-09-30 | York International Corporation | Stability control system and method for centrifugal compressors operating in parallel |
JP4345672B2 (en) * | 2002-08-12 | 2009-10-14 | 株式会社日立プラントテクノロジー | Turbo compressor and operation method thereof |
US6877328B2 (en) | 2003-04-23 | 2005-04-12 | Kendro Laboratory Products, Lp | Compressor operation following sensor failure |
CN1330229C (en) | 2004-07-26 | 2007-08-08 | 张德福 | Spring tine tyne rice weeder |
EP1635066B1 (en) * | 2004-09-09 | 2015-06-03 | Alstom Technology Ltd | Gas supply apparatus and associated method of operation for a gas turbine |
DE102007035927A1 (en) | 2007-07-31 | 2009-02-05 | Mtu Aero Engines Gmbh | Control for a gas turbine with actively stabilized compressor |
US8152496B2 (en) * | 2008-05-02 | 2012-04-10 | Solar Turbines Inc. | Continuing compressor operation through redundant algorithms |
US8840358B2 (en) * | 2008-10-07 | 2014-09-23 | Shell Oil Company | Method of controlling a compressor and apparatus therefor |
DE102008058799B4 (en) | 2008-11-24 | 2012-04-26 | Siemens Aktiengesellschaft | Method for operating a multi-stage compressor |
US8311684B2 (en) * | 2008-12-17 | 2012-11-13 | Pratt & Whitney Canada Corp. | Output flow control in load compressor |
-
2011
- 2011-07-18 US US13/812,952 patent/US9410551B2/en active Active
- 2011-07-18 EP EP11741157.9A patent/EP2598755B1/en active Active
- 2011-07-18 CN CN201180037257.9A patent/CN103038516B/en active Active
- 2011-07-18 WO PCT/EP2011/062248 patent/WO2012013530A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2012013530A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN103038516B (en) | 2015-04-01 |
EP2598755B1 (en) | 2015-08-26 |
US9410551B2 (en) | 2016-08-09 |
US20130129477A1 (en) | 2013-05-23 |
WO2012013530A1 (en) | 2012-02-02 |
CN103038516A (en) | 2013-04-10 |
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