CN114870422B - Fractionating tower top pressure control method and device based on air pressure unit - Google Patents
Fractionating tower top pressure control method and device based on air pressure unit Download PDFInfo
- Publication number
- CN114870422B CN114870422B CN202210513504.8A CN202210513504A CN114870422B CN 114870422 B CN114870422 B CN 114870422B CN 202210513504 A CN202210513504 A CN 202210513504A CN 114870422 B CN114870422 B CN 114870422B
- Authority
- CN
- China
- Prior art keywords
- pressure
- rotating speed
- surge
- surge valve
- value
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 86
- 238000005194 fractionation Methods 0.000 claims abstract description 36
- 230000008569 process Effects 0.000 claims abstract description 36
- 230000006870 function Effects 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims description 22
- 230000001965 increasing effect Effects 0.000 claims description 18
- 238000004590 computer program Methods 0.000 claims description 16
- 230000001276 controlling effect Effects 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims 2
- 206010015137 Eructation Diseases 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 238000004880 explosion Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000003197 catalytic effect Effects 0.000 abstract description 4
- 238000004939 coking Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 20
- 238000012544 monitoring process Methods 0.000 description 16
- 230000001088 anti-asthma Effects 0.000 description 15
- 239000000924 antiasthmatic agent Substances 0.000 description 15
- 239000000523 sample Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
Abstract
The application discloses a fractionation tower top pressure control method and device based on a gas pressure unit, which are used for reducing the pressure of the fractionation tower, and the method comprises the following steps: judging whether the surge working point is in a safe area or not, if so, closing an anti-surge valve; in the process of closing the anti-surge valve, the speed of the air press unit is adjusted or/and the anti-surge valve is adjusted so that the pressure at the top of the fractionating tower meets a set value. The method is used for solving the problems that in the prior art, the operation difficulty is high and the unit surge, the energy waste and the explosion accidents are easily caused because the control of the air pressure unit in the catalytic device and the coking device is basically manual adjustment. The unmanned operation of the air pressure unit is realized, the full-automatic intelligent operation is realized, the production efficiency of the device is improved, the occurrence rate of serious explosion accidents is reduced, the pressure of the top of the fractionating tower is precisely controlled, the liquefaction rate of products is improved, and the full-automatic intelligent control of the large-scale unit is realized.
Description
Technical Field
The application relates to the technical field of air pressure units, in particular to a fractionation tower top pressure control method and device based on an air pressure unit.
Background
At present, the control of the air pressure unit in the catalytic device and the coking device is basically that the rotating speed of the unit and the anti-surge valve are manually adjusted, a great deal of operation intensity is required in the process of starting a machine tool by the catalytic device, the stability of the pressure at the top of a fractionation tower is ensured, meanwhile, the coking device is a gap-type device, the primary tower cutting replacement work is required to be carried out in 16 to 36 hours, the machine load is adjusted from the beginning of preheating of a new tower, then the tower cutting is started after a plurality of hours, at this time, an operator is required to adjust the machine load again, finally, after 1 hour, the old tower is subjected to the emptying operation, and the machine load is required to be adjusted again by a constructor.
Disclosure of Invention
The embodiment of the specification provides a fractionating tower top pressure control method and device based on a gas turbine set, which are used for solving the problems that in the prior art, the operation difficulty is high and the surge, the energy waste and the explosion accidents of the set are easily caused because the gas turbine set in a catalytic device and a coking device are basically controlled by manual adjustment.
In a first aspect, embodiments of the present application provide a method for controlling pressure at a fractionation column top based on a gas turbine set, for reducing pressure at the fractionation column, the method comprising:
judging whether the surge working point is in a safe area or not, if so, closing an anti-surge valve;
in the process of closing the anti-surge valve, the speed of the air press unit is adjusted or/and the anti-surge valve is adjusted so that the pressure at the top of the fractionating tower meets a set value.
Further, the anti-surge valve adjustment includes:
if the anti-surge valve is closed to a certain value, the pressure at the top of the fractionating tower meets a set value, judging whether a surge working point is far away from a control line, if so, reducing the rotating speed of the air pressure unit and slowly closing the anti-surge valve until the anti-surge valve can not be closed any more or the rotating speed of the air pressure unit is reduced to the lowest;
or alternatively, the first and second heat exchangers may be,
if the anti-asthma valve is closed to the closing value, if the judgment result is negative, the anti-asthma valve is closed to the closing value;
judging whether the pressure at the top of the fractionating tower meets a set value, if not, increasing the rotating speed of the air compressor until the pressure at the top of the fractionating tower reaches the set value;
or alternatively, the first and second heat exchangers may be,
if the anti-asthma valve is closed to the closing value, judging that the anti-asthma valve is not closed, and closing the anti-asthma valve to a semi-automatic state set value;
judging whether the pressure at the top of the fractionating tower meets a set value, if not, increasing the rotating speed of the air compressor until the pressure at the top of the fractionating tower reaches the set value;
or alternatively, the first and second heat exchangers may be,
if the judgment result is negative and the surge working point is smaller than the first safety line of the control line in the closing process of the anti-surge valve, the rotating speed of the air lift press unit is increased, and the closing of the anti-surge valve is stopped;
if the surge working point reaches a second safety line which is larger than the control line in the rotating speed process of the air lifting press unit, the pressure at the top of the fractionating tower does not reach a set value, and the rotating speed of the air lifting press unit is stopped;
continuously closing the anti-surge valve, when the anti-surge valve is closed, enabling a surge working point to enter between a first safety line and a second safety line, and keeping a current rotation state when the pressure set value of the top of the fractionating tower is reached, and stopping closing the anti-surge valve; otherwise, continuing to circulate the operation of the step of stopping closing the anti-surge valve until the set value of the pressure at the top of the fractionation tower is reached.
Further, the method for setting the rotating speed during the speed adjustment of the air pressure unit comprises the following steps:
if the deviation between the set pressure value and the measured value of the fractionating tower top is smaller than the deviation value of U times, the rotating speed of the air pressure unit is regulated by A revolutions per minute;
or alternatively, the first and second heat exchangers may be,
if the deviation between the pressure set value and the measured value at the top of the fractionating tower is smaller than the deviation value of W times and larger than the deviation value of U times, the rotating speed of the air pressure unit is regulated at the speed of B revolutions per minute;
or alternatively, the first and second heat exchangers may be,
if the deviation between the pressure set value and the measured value at the top of the fractionating tower is larger than the deviation value of W times, the rotating speed of the air pressure unit is regulated at C revolutions per minute;
wherein U < W, A < B < C.
Further, if a fractionation overhead pressure override occurs, the inlet flare valve is automatically adjusted to maintain a stable fractionation overhead pressure.
In a second aspect, embodiments of the present application further provide a fractionation tower top pressure control method based on a gas pressure set, for elevating a fractionation tower pressure, the method comprising:
judging whether a surge working point is in a safe area or not, if so, reducing the rotating speed of the air pressure unit;
in the process of reducing the rotating speed of the air pressure unit, the speed of the air pressure unit is adjusted and/or the anti-surge valve is adjusted so that the pressure at the top of the fractionating tower meets a set value.
Further, the air pressure unit speed adjustment includes:
if the rotating speed of the air pressure unit is reduced to the lowest rotating speed, the pressure at the top of the fractionating tower does not reach a set value, and then the anti-asthma valve is opened until the pressure at the top of the fractionating tower reaches the set value;
or alternatively, the first and second heat exchangers may be,
if the surge working point is smaller than the first safety line in the process of reducing the rotating speed of the air pressure unit, stopping reducing the speed, opening the anti-surge valve, and if the surge working point is larger than the second safety line, stopping opening the anti-surge valve, and reducing the rotating speed of the air pressure unit again until the pressure set value at the top of the fractionating tower is reached; if not, continuing to circulate the operation of the steps from the process of reducing the rotating speed of the air pressure unit to the process of reducing the rotating speed of the air pressure unit again until the pressure set value of the top of the fractionating tower is reached, until the pressure set value of the top of the fractionating tower is reached.
Further, the method for setting the rotating speed during the speed adjustment of the air pressure unit comprises the following steps:
if the deviation between the set pressure value and the measured value of the fractionating tower top is smaller than the deviation value of U times, the rotating speed of the air pressure unit is regulated by D revolutions per minute;
or alternatively, the first and second heat exchangers may be,
if the deviation between the pressure set value and the measured value at the top of the fractionating tower is smaller than the deviation value of W times and larger than the deviation value of U times, the rotating speed of the air pressure unit is regulated at E revolutions per minute;
or alternatively, the first and second heat exchangers may be,
if the deviation between the pressure set value and the measured value at the top of the fractionating tower is larger than the deviation value of W times, the rotating speed of the air pressure unit is regulated at F revolutions per minute;
wherein U < W, D < E < F.
In a third aspect, embodiments of the present application further provide an intelligent control device for pressure at the top of a fractionating tower based on a gas turbine set, where the device includes:
the judging module is used for judging whether the surge working point is in a safe area or not, and if so, closing the anti-surge valve; or, the method is used for judging whether the surge working point is in a safe area or not, and if so, the rotating speed of the air pressure unit is reduced;
the execution module is used for adjusting the speed of the air pressure unit or/and the anti-surge valve in the process of closing the anti-surge valve so as to enable the pressure at the top of the fractionation tower to meet a set value; or, in the process of reducing the rotating speed of the air pressure unit, the speed of the air pressure unit is adjusted and/or the anti-surge valve is adjusted so that the pressure at the top of the fractionating tower meets the set value.
In a fourth aspect, embodiments of the present application also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method as in any of the embodiments.
In a fifth aspect, embodiments of the present application further provide an electronic device, including a memory, a processor, and a computer program stored on the memory and executable by the processor, the processor implementing a method according to any of the embodiments when the computer program is executed.
The above-mentioned at least one technical scheme that this application embodiment adopted can reach following beneficial effect: the unmanned operation of the air pressure unit is realized, the full-automatic intelligent operation is realized, the production efficiency of the device is improved, the occurrence rate of serious explosion accidents is reduced, the pressure of the top of the fractionating tower is precisely controlled, the liquefaction rate of products is improved, and the full-automatic intelligent control of the large-scale unit is realized. The intelligent analysis technology is adopted to adjust the load of the unit and ensure the long-period stable operation of the air compressor unit; the continuous operation of the device is realized, and the aim that the air pressure unit can respond in time is fulfilled.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a schematic flow chart of a method for controlling pressure at the top of a fractionating tower based on a gas turbine set according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of another process of controlling pressure at the top of a fractionation column based on a gas turbine set according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a method for controlling pressure at the top of a fractionating tower based on a gas turbine set according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a method for controlling pressure at the top of a fractionating tower based on a gas turbine set according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of a pressure control device at the top of a fractionating tower based on a gas turbine set according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a fractionating tower top pressure control device based on a gas pressure unit when a two-section curve of a two-section gas compressor is intelligently controlled by an anti-surge valve according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a fractionation tower top pressure control device based on a gas pressure unit when two sections of curves of two sections of gas presses are intelligently controlled according to the embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a fractionating tower top pressure control device based on a gas pressure unit according to an embodiment of the present disclosure when two sections of gas presses compose a comprehensive curve and an anti-surge valve is intelligently controlled.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of a fractionation tower top pressure control method based on a gas turbine set according to an embodiment of the present disclosure.
The embodiment provides a fractionation tower top pressure control method based on a gas pressure unit, referring to fig. 1, for reducing the pressure of the fractionation tower, the method comprises the following steps:
s101, acquiring a surge working point;
in particular, surge is understood to mean the periodic oscillations of the fluid machine and of the medium in its ducts, which are mechanical vibrations of the medium subjected to the excitation of periodic suction and discharge; the surge operating point may be understood as the critical point at which mechanical shock occurs.
The manner in which the surge operating point is obtained includes, but is not limited to, the use of sensing devices such as frequency sensors.
It should be understood that the above list is for illustrative purposes only and should not be construed as limiting the present application in any way.
S102, judging whether a surge working point is in a safe area, if so, closing an anti-surge valve;
in a specific implementation, the safe area of the surge operating point is set in advance according to the use condition, and is not limited herein. The act of closing the anti-surge valve includes, but is not limited to, closing in a slow manner.
And S103, in the process of closing the anti-surge valve, the speed of the air pressure unit is adjusted or/and the anti-surge valve is adjusted so that the pressure at the top of the fractionation tower meets a set value.
In a specific implementation, according to the judgment result, the speed of the air press unit and/or the anti-surge valve are/is adjusted so that the pressure at the top of the fractionation tower meets the set value, including but not limited to the following modes:
if the anti-surge valve is closed to a certain value, the pressure at the top of the fractionating tower meets a set value, judging whether a surge working point is far away from a control line, if so, reducing the rotating speed of the air pressure unit and slowly closing the anti-surge valve until the anti-surge valve can not be closed any more or the rotating speed of the air pressure unit is reduced to the lowest;
or if the anti-asthma valve is closed to the closing value, if the judgment result is negative, the anti-asthma valve is closed to the closing value;
judging whether the pressure at the top of the fractionating tower meets a set value, if not, increasing the rotating speed of the air compressor until the pressure at the top of the fractionating tower reaches the set value;
or if the anti-asthma valve is closed to the closing value, if the judging result is negative, the anti-asthma valve is closed to a semi-automatic state set value;
judging whether the pressure at the top of the fractionating tower meets a set value, if not, increasing the rotating speed of the air compressor until the pressure at the top of the fractionating tower reaches the set value;
or if the judgment result is negative and the surge working point is smaller than the first safety line of the control line in the closing process of the anti-surge valve, the rotating speed of the air lift press unit is increased, and the closing of the anti-surge valve is stopped;
if the surge working point reaches a second safety line which is larger than the control line in the rotating speed process of the air lifting press unit, the pressure at the top of the fractionating tower does not reach a set value, and the rotating speed of the air lifting press unit is stopped;
continuously closing the anti-surge valve, when the anti-surge valve is closed, enabling a surge working point to enter between a first safety line and a second safety line, and keeping a current rotation state when the pressure set value of the top of the fractionating tower is reached, and stopping closing the anti-surge valve; otherwise, continuing to circulate the operation of the step of stopping closing the anti-surge valve until the set value of the pressure at the top of the fractionation tower is reached.
According to the embodiment, when the pressure of the fractionating tower is reduced, unmanned operation of the air pressure unit can be realized, full-automatic intelligent operation is realized, the production efficiency of the device is improved, the occurrence rate of serious explosion accidents is reduced, the pressure of the top of the fractionating tower is accurately controlled, the liquefaction rate of products is improved, and full-automatic intelligent control of the large-scale unit is realized. The intelligent analysis technology is adopted to adjust the load of the unit and ensure the long-period stable operation of the air compressor unit; the continuous operation of the device is realized, and the aim that the air pressure unit can respond in time is fulfilled.
Further stated, the performing a gas turbine set speed adjustment includes:
if the deviation between the set pressure value and the measured value of the fractionating tower top is smaller than the deviation value of U times, the rotating speed of the air pressure unit is regulated by A revolutions per minute;
for example, U is any number from 1 to 2, and D is any number from 60 to 120 corresponding to U.
Or if the deviation between the given value and the measured value of the pressure at the top of the fractionating tower is smaller than the deviation value of W times and larger than the deviation value of U times, the rotating speed of the air pressure unit is regulated by B revolutions per minute; or alternatively, the first and second heat exchangers may be,
if the deviation between the pressure set value and the measured value at the top of the fractionating tower is larger than the deviation value of W times, the rotating speed of the air pressure unit is regulated at C revolutions per minute;
wherein U < W, A < B < C.
The embodiment is used for setting the rotating speed of the air pressure unit under different conditions, so that the air pressure unit can further run stably for a long period, continuous operation of the device is realized, and the air pressure unit can respond in time.
Further, in order to further ensure the safe operation of the unit and the rotation speed imbalance function, when the deviation between the target rotation speed and the actual rotation speed is larger than a preset value, the program automatically stops adjusting the rotation speed, and the performance control is automatically switched to the manual mode operation.
And when the deviation between the target valve position and the actual valve position is larger than a preset value, the program automatically stops adjusting the anti-surge valve, and the performance control is automatically switched to a manual mode for operation.
When the anti-surge valve is regulated, the program automatically switches the target rotating speed to an actual rotating speed value so as to keep the current working condition stable.
The software automatically adds differential and differential filtering functions, and detects the change trend of the measured value in real time to judge whether the adjustment amplitude needs to be continuously increased or not.
And an inlet pressure low limit function, wherein the program automatically stops increasing the rotating speed once the inlet pressure of the aerostatic press is detected to be lower than a set value.
And an inlet pressure high limit function, wherein the program automatically stops reducing the rotating speed and opening the anti-surge valve once the inlet pressure of the aerostatic press is detected to be higher than a set value.
And the outlet pressure high-limit function, and the program automatically stops increasing the rotating speed once the outlet pressure of the aerostatic press is detected to be higher than a set value.
The performance control of the aerostatic press adopts different speeds so as to ensure the stable operation of the device.
Any parameter involved in anti-surge or performance control is instrumentally distorted and the program automatically switches to safe mode operation.
The inlet flare valve participates in performance control, and automatically adjusts and opens a certain opening degree to keep the pressure at the top of the fractionation tower stable once the pressure override of the fractionation tower occurs.
Fig. 2 is another schematic flow chart of a fractionation tower top pressure control method based on a gas turbine set according to an embodiment of the present disclosure.
The embodiment provides a fractionation tower top pressure control method based on a gas pressure unit, referring to fig. 2, for raising the pressure of the fractionation tower, the method comprises the following steps:
s201, acquiring a surge working point;
in particular, surge is understood to mean the periodic oscillations of the fluid machine and of the medium in its ducts, which are mechanical vibrations of the medium subjected to the excitation of periodic suction and discharge; the surge operating point may be understood as the critical point at which mechanical shock occurs.
The manner in which the surge operating point is obtained includes, but is not limited to, the use of sensing devices such as frequency sensors.
It should be understood that the above list is for illustrative purposes only and should not be construed as limiting the present application in any way.
S202, judging whether a surge working point is in a safe area, and if so, reducing the rotating speed of the air pressure unit;
in a specific implementation, the safe area of the surge operating point is set in advance according to the use condition, and is not limited herein.
And S203, in the process of reducing the rotating speed of the air pressure unit, adjusting the speed of the air pressure unit and/or adjusting an anti-surge valve so as to enable the pressure at the top of the fractionating tower to meet a set value.
In a specific implementation, according to the determination result, the manner of performing the speed adjustment or/and the anti-surge valve adjustment of the air press unit includes, but is not limited to, the following manners:
if the rotating speed of the air pressure unit is reduced to the lowest rotating speed, the pressure at the top of the fractionating tower does not reach a set value, and then the anti-asthma valve is opened until the pressure at the top of the fractionating tower reaches the set value;
or stopping the speed reduction when the surge working point is smaller than the first safety line in the process of reducing the rotating speed of the air pressure unit, opening the anti-surge valve when the surge working point is larger than the second safety line, and stopping opening the anti-surge valve, and reducing the rotating speed of the air pressure unit again until the pressure set value at the top of the fractionating tower is reached; if not, continuing to circulate the operation of the steps from the process of reducing the rotating speed of the air pressure unit to the process of reducing the rotating speed of the air pressure unit again until the pressure set value of the top of the fractionating tower is reached, until the pressure set value of the top of the fractionating tower is reached.
According to the embodiment, unmanned operation of the air pressure unit can be realized, full-automatic intelligent operation is realized, the production efficiency of the device is improved, the occurrence rate of serious explosion accidents is reduced, the pressure of the top of the fractionating tower is accurately controlled, the liquefaction rate of products is improved, and full-automatic intelligent control of the large-scale unit is realized. The intelligent analysis technology is adopted to adjust the load of the unit and ensure the long-period stable operation of the air compressor unit; the continuous operation of the device is realized, and the aim that the air pressure unit can respond in time is fulfilled.
Further illustratively, performing a gas turbine set speed adjustment includes:
if the deviation between the set pressure value and the measured value of the fractionating tower top is smaller than the deviation value of U times, the rotating speed of the air pressure unit is regulated by D revolutions per minute;
for example, U is any number from 1 to 2, and D is any number from 30 to 60 corresponding to U.
Or if the deviation between the given value and the measured value of the pressure at the top of the fractionating tower is smaller than the deviation value of W times and larger than the deviation value of U times, regulating the rotating speed of the air pressure unit at E revolutions per minute;
or if the deviation between the given value and the measured value of the pressure at the top of the fractionating tower is larger than the deviation value of W times, the rotating speed of the air pressure unit is regulated by F revolutions per minute;
wherein U < W, D < E < F.
Fig. 3 is a schematic diagram of a fractionation tower top pressure control method based on a gas turbine set according to an embodiment of the present disclosure. The embodiment is as follows when an anti-surge valve is used:
acquiring a surge working point through an intelligent controller of the aerostatic press;
in the specific implementation, the intelligent controller of the air compressor is respectively and electrically connected with the anti-surge valve, the speed regulating valve of the air compressor unit, the anti-surge valve and the flame-off valve; the anti-surge valve is connected to the outlet of the second section of the air pressure unit, and the flame-off torch valve is connected to the inlet valve.
The intelligent controller of the aerostatic press judges whether a surge working point is in a safe area, if so, an anti-surge valve is closed; in the process of closing the anti-surge valve, judging whether the pressure at the top of the fractionating tower meets a set value, and adjusting the speed of the air pressure unit or/and the anti-surge valve according to the judging result so as to enable the pressure at the top of the fractionating tower to meet the set value. For specific steps, please refer to the content of the above embodiments, and the description is not repeated here.
Fig. 4 is a schematic diagram of a fractionation tower top pressure control method based on a gas turbine set according to an embodiment of the present disclosure when two anti-surge valves are implemented. The implementation is as follows when two anti-surge valves are used:
the process is completed through two intelligent controllers of the air press, each intelligent controller of the air press is electrically connected with an anti-surge valve, a speed regulating valve of an air press unit, an anti-surge valve and a flame-off torch valve, and each intelligent controller of the air press controls one air press. Methods of use reference is made to the above embodiments and will not be repeated here.
It should be noted that the two intelligent controllers of the air compressor add a mutual self-learning function, and automatically track the real-time output value of the other party, so that the response of any intelligent controller of the air compressor can be timely and efficient.
For two intelligent controllers of the aero-compressor to control two valve control modes, the intelligent coupling control function is added into the two intelligent controllers of the aero-compressor to prevent the unit caused by mutual interference from entering surge.
Fig. 5 is a schematic structural diagram of a fractionation tower top pressure control device based on a gas turbine set according to an embodiment of the present disclosure.
The embodiment of the present disclosure provides an intelligent control device for pressure at the top of a fractionating tower based on a gas turbine set, referring to fig. 5, the device includes:
the acquisition module 301 is configured to acquire parameters of each component of the air pressure unit;
specifically, the acquisition module 301 includes, but is not limited to: an anti-surge valve position sensor detection element 3011, an air compressor primary inlet temperature monitoring element 3012, an air compressor primary inlet flow monitoring element 3013, an air compressor primary outlet pressure monitoring element 3014, an air compressor primary inlet pressure monitoring element 3015, a secondary anti-surge valve position sensor detection element 3016, an air compressor secondary inlet temperature monitoring element 3017, an air compressor secondary inlet flow monitoring element 3018, an air compressor secondary outlet pressure monitoring element 3019, an air compressor secondary inlet pressure monitoring element 30110, a fractionation column top pressure transmitter 30111, and a rotation speed probe 30112.
A judging module 302, configured to judge whether the surge operating point is in a safe area, and if so, close the anti-surge valve; or, the method is used for judging whether the surge working point is in a safe area or not, and if so, the rotating speed of the air pressure unit is reduced;
specifically, the determining module 302 includes, but is not limited to: a first-stage aerostatic intelligent controller 3021, a second-stage anti-surge controller 3022, an intelligent coupling controller 3023, a speed probe signal selection controller 3024, a self-learning controller 3025, a torch valve actuator 3026 and a speed controller 3027.
The execution module 303 is configured to perform a speed adjustment of the air pressure unit or/and an anti-surge valve adjustment in a process of closing the anti-surge valve, so that the pressure at the top of the fractionation column meets a set value; or, in the process of reducing the rotating speed of the air pressure unit, the speed of the air pressure unit is adjusted and/or the anti-surge valve is adjusted so that the pressure at the top of the fractionating tower meets the set value.
Specifically, the execution module 303 includes, but is not limited to, an anti-surge valve actuator 3031, a torch valve actuator 3032, and a timing actuator 3033. The anti-surge valve actuator 3031 includes a first-stage anti-surge valve actuator 30311 and a second-stage anti-surge valve actuator 30312.
Fig. 6 is a schematic structural diagram of a fractionating tower top pressure control device based on a gas pressure unit when a two-section curve of a two-section gas pressure machine is intelligently controlled by an anti-surge valve according to an embodiment of the present disclosure.
The acquisition module used for acquiring parameters of various components of the air pressure unit in the implementation comprises, but is not limited to, a pressure detection element, a position sensor element, a temperature sensor element, a flow sensor element, a rotating speed probe and a speed controller, and is used for acquiring the rotating speed of the air pressure unit and controlling the rotating speed of the air pressure unit. The connection principle is connected in the mode of installation diagram, such as:
the self-learning controller is connected with the intelligent coupling controller, the first section aerostatic controller, the second section aerostatic controller and the anti-asthma valve executing mechanism.
The intelligent controller of the air compressor is connected with a sensor detection element of an anti-asthma valve position, an inlet temperature monitoring element of the air compressor, an inlet flow monitoring element of the air compressor, an outlet pressure monitoring element of the air compressor and an inlet pressure monitoring element of the air compressor;
the second-section air compressor controller is connected with a second-section anti-asthma valve position sensor detection element, an air compressor second-section inlet temperature monitoring element, an air compressor second-section inlet flow monitoring element, an air compressor second-section outlet pressure monitoring element and an air compressor second-section inlet pressure monitoring element;
the intelligent coupling controller is connected with the pressure transmitter at the top of the fractionating tower, the ignition torch valve actuating mechanism and the speed controller;
the speed controller is connected with the speed regulation executing mechanism and the speed probe signal selection controller;
the speed probe signal selection controller is connected with at least one rotating speed probe. The usage is referred to the above embodiment method, and the description is not repeated here.
Fig. 7 is a schematic structural diagram of a fractionating tower top pressure control device based on a gas pressure unit when two sections of curves of two sections of gas presses are intelligently controlled.
On the basis of intelligent control of one anti-surge valve of the two-section air compressor, a two-section anti-surge valve actuating mechanism is added.
The second-section anti-asthma valve actuating mechanism is connected with the second-section air compressor controller. The usage is referred to the above embodiment method, and the description is not repeated here.
Fig. 8 is a schematic structural diagram of a fractionating tower top pressure control device based on a gas pressure unit according to an embodiment of the present disclosure when two sections of gas presses compose a comprehensive curve and an anti-surge valve is intelligently controlled.
Referring to fig. 8, two sections of air presses are combined into one comprehensive curve, and one anti-surge valve is different from one anti-surge valve of two sections of air presses in intelligent control, and only one comprehensive curve is used. The usage is referred to the above embodiment method, and the description is not repeated here.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Accordingly, the present application also proposes a computer readable storage medium, on which a computer program is stored, which program, when being executed by a processor, implements a method as described in any of the embodiments of the present application.
Further, the application also proposes an electronic device comprising a memory, a processor and a computer program stored on the memory and executable by the processor, said processor implementing a method according to any of the embodiments of the application when executing said computer program.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory. The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (6)
1. A method for controlling pressure at the top of a fractionation column based on a gas pressure set, the method comprising:
judging whether the surge working point is in a safe area or not, if so, closing an anti-surge valve;
in the process of closing the anti-surge valve, the speed of the air pressure unit and the anti-surge valve are adjusted so that the pressure at the top of the fractionating tower meets a set value;
the anti-surge valve adjustment includes:
if the anti-surge valve is closed to a certain value, the pressure at the top of the fractionating tower meets a set value, judging whether a surge working point is far away from a control line, if so, reducing the rotating speed of the air pressure unit and slowly closing the anti-surge valve until the anti-surge valve can not be closed any more or the rotating speed of the air pressure unit is reduced to the lowest;
or alternatively, the first and second heat exchangers may be,
if the anti-surge valve is closed to the closing value, judging that the anti-surge valve is not closed, and closing the anti-surge valve to the closing value;
judging whether the pressure at the top of the fractionating tower meets a set value, if not, increasing the rotating speed of the air compressor until the pressure at the top of the fractionating tower reaches the set value;
or alternatively, the first and second heat exchangers may be,
if the anti-surge valve is closed to the closing value, judging that the anti-surge valve is not closed, and closing the anti-surge valve to a semi-automatic state set value;
judging whether the pressure at the top of the fractionating tower meets a set value, if not, increasing the rotating speed of the air compressor until the pressure at the top of the fractionating tower reaches the set value;
or alternatively, the first and second heat exchangers may be,
if the judgment result is negative and the surge working point is smaller than the first safety line of the control line in the closing process of the anti-surge valve, the rotating speed of the gas raising press set is increased, and the closing of the anti-surge valve is stopped;
if the surge working point reaches a second safety line which is larger than the control line in the rotating speed process of the air lifting press unit, the pressure at the top of the fractionating tower does not reach a set value, and the rotating speed of the air lifting press unit is stopped;
continuously closing the anti-surge valve, when the anti-surge valve is closed, enabling a surge working point to enter between a first safety line and a second safety line, and keeping a current rotation state when the pressure set value of the top of the fractionating tower is reached, and stopping closing the anti-surge valve; otherwise, continuing to circulate the operation of stopping the step of closing the anti-surge valve in the process of closing the anti-surge valve until the pressure set value at the top of the fractionation tower is reached;
the rotating speed setting method during the speed adjustment of the air pressure unit comprises the following steps:
if the deviation between the set pressure value and the measured value of the fractionating tower top is smaller than the deviation value of U times, the rotating speed of the air pressure unit is regulated by A revolutions per minute;
wherein U is any number of 1-2, and A is any number of 60-120 corresponding to U;
or alternatively, the first and second heat exchangers may be,
if the deviation between the pressure set value and the measured value at the top of the fractionating tower is smaller than the deviation value of W times and larger than the deviation value of U times, the rotating speed of the air pressure unit is regulated at the speed of B revolutions per minute;
or alternatively, the first and second heat exchangers may be,
if the deviation between the pressure set value and the measured value at the top of the fractionating tower is larger than the deviation value of W times, the rotating speed of the air pressure unit is regulated at C revolutions per minute;
wherein U < W, A < B < C;
in order to ensure the safe operation of the air pressure unit, the rotating speed is in an imbalance function, when the deviation between the target rotating speed and the actual rotating speed of the air pressure unit is larger than a preset value, the program automatically stops adjusting the rotating speed, and the performance control is automatically switched to a manual mode operation;
the anti-surge valve is in a disorder function, when the deviation between the target valve position and the actual valve position is larger than a preset value, the program automatically stops adjusting the anti-surge valve, and the performance control is automatically switched to a manual mode for operation;
when the process is changed into the adjustment of the anti-surge valve, the program automatically switches the target rotating speed of the air pressure unit into an actual rotating speed value so as to keep the current working condition stable;
the software automatically adds differential and differential filtering functions, and detects the change trend of the actual measurement value of the pressure at the top of the fractionating tower in real time so as to judge whether the output value of the performance control PID needs to be continuously increased or not;
an inlet pressure low limit function, in which the program automatically stops increasing the rotational speed upon detecting that the inlet pressure of the pneumatic press is lower than a set value;
an inlet pressure high-limit function, wherein once the inlet pressure of the air compressor is detected to be higher than a set value, a program automatically stops reducing the rotating speed of the air compressor unit and opening an anti-surge valve;
the outlet pressure high-limit function, once the outlet pressure of the air compressor is detected to be higher than a set value, the program automatically stops increasing the rotating speed of the air compressor unit;
the performance control of the aerostatic press adopts the speed of different air pressure units so as to ensure the stable operation of the device;
if any parameter involved in the anti-surge or fractionation tower top pressure comprehensive control has instrument distortion, the program is automatically switched into a safe mode for operation;
on the basis of intelligent control of an anti-surge valve of the two-section aero-compressor, a two-section anti-surge valve actuating mechanism is added, and the two-section anti-surge valve actuating mechanism is connected with a two-section aero-compressor controller; or (b)
Two sections of aero-compressors synthesize a comprehensive curve and an anti-surge valve is intelligently controlled.
2. The method of claim 1, wherein if an override of the pressure at the top of the fractionation column occurs, the inlet flare valve is automatically adjusted to maintain the pressure at the top of the fractionation column constant.
3. A method for controlling pressure at the top of a fractionation column based on a gas pressure set, the method comprising:
judging whether a surge working point is in a safe area or not, if so, reducing the rotating speed of the air pressure unit;
in the process of reducing the rotating speed of the air pressure unit, the speed of the air pressure unit and the anti-surge valve are adjusted so that the pressure at the top of the fractionating tower meets a set value;
the air pressure unit speed adjustment includes:
if the rotating speed of the air pressure unit is reduced to the lowest rotating speed, the pressure at the top of the fractionating tower does not reach a set value, and then an anti-surge valve is opened until the pressure at the top of the fractionating tower reaches the set value;
or alternatively, the first and second heat exchangers may be,
stopping the speed reduction when the surge working point is smaller than the first safety line in the process of reducing the rotating speed of the air pressure unit, opening the anti-surge valve, stopping opening the anti-surge valve when the surge working point is larger than the second safety line, and reducing the rotating speed of the air pressure unit again until the pressure set value at the top of the fractionating tower is reached; if the rotating speed of the air pressure unit is reduced, continuing to circulate until the rotating speed of the air pressure unit is reduced again until the pressure set value at the top of the fractionating tower is reached;
the rotating speed setting method during the speed adjustment of the air pressure unit comprises the following steps:
if the deviation between the set pressure value and the measured value of the fractionating tower top is smaller than the deviation value of U times, the rotating speed of the air pressure unit is regulated by D revolutions per minute;
wherein U is any number of 1-2, D is any number of 30-60 corresponding to U,
or alternatively, the first and second heat exchangers may be,
if the deviation between the pressure set value and the measured value at the top of the fractionating tower is smaller than the deviation value of W times and larger than the deviation value of U times, the rotating speed of the air pressure unit is regulated at E revolutions per minute;
or alternatively, the first and second heat exchangers may be,
if the deviation between the pressure set value and the measured value at the top of the fractionating tower is larger than the deviation value of W times, the rotating speed of the air pressure unit is regulated at F revolutions per minute;
wherein U < W, D < E < F;
in order to ensure the safe operation of the unit and the rotation speed imbalance function, when the deviation between the target rotation speed and the actual rotation speed is larger than a preset value, the program automatically stops adjusting the rotation speed, and the performance control is automatically switched to a manual mode operation;
the anti-surge valve is in a disorder function, when the deviation between the target valve position and the actual valve position is larger than a preset value, the program automatically stops adjusting the anti-surge valve, and the performance control is automatically switched to a manual mode for operation;
when the anti-surge valve is regulated, the program automatically switches the target rotating speed to an actual rotating speed value so as to keep the current working condition stable;
the software automatically adds differential and differential filtering functions, and detects the change trend of the measured value in real time to judge whether the adjustment amplitude needs to be continuously increased or not;
an inlet pressure low limit function, in which the program automatically stops increasing the rotational speed upon detecting that the inlet pressure of the pneumatic press is lower than a set value;
an inlet pressure high limit function, in which the program automatically stops reducing the rotation speed and opening the anti-surge valve once the inlet pressure of the aerostatic press is detected to be higher than a set value;
an outlet pressure high-limit function, wherein the program automatically stops increasing the rotating speed once the outlet pressure of the aerostatic press is detected to be higher than a set value;
different rates are adopted for controlling the performance of the aerostatic press so as to ensure the stable operation of the device;
if any parameter involved in anti-surge or performance control has instrument distortion, the program is automatically switched into a safe mode for operation;
on the basis of intelligent control of an anti-surge valve of the two-section aero-compressor, a two-section anti-surge valve actuating mechanism is added, and the two-section anti-surge valve actuating mechanism is connected with a two-section aero-compressor controller; or (b)
Two sections of aero-compressors synthesize a comprehensive curve and an anti-surge valve is intelligently controlled.
4. An intelligent control device for pressure at the top of a fractionating tower based on a gas pressure unit, which is used for realizing the control method according to any one of claims 1-3, characterized in that the device comprises:
the judging module is used for judging whether the surge working point is in a safe area or not, and if so, closing the anti-surge valve; or, the method is used for judging whether the surge working point is in a safe area or not, and if so, the rotating speed of the air pressure unit is reduced;
the execution module is used for adjusting the speed of the air pressure unit and the anti-surge valve in the process of closing the anti-surge valve so as to enable the pressure at the top of the fractionating tower to meet a set value; or, in the process of reducing the rotating speed of the air pressure unit, the speed of the air pressure unit and the anti-surge valve are adjusted so that the pressure at the top of the fractionating tower meets the set value.
5. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements a control method as claimed in any one of claims 1-3.
6. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the control method according to any one of claims 1-3 when executing the computer program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210513504.8A CN114870422B (en) | 2022-05-12 | 2022-05-12 | Fractionating tower top pressure control method and device based on air pressure unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210513504.8A CN114870422B (en) | 2022-05-12 | 2022-05-12 | Fractionating tower top pressure control method and device based on air pressure unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114870422A CN114870422A (en) | 2022-08-09 |
| CN114870422B true CN114870422B (en) | 2024-03-01 |
Family
ID=82675509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210513504.8A Active CN114870422B (en) | 2022-05-12 | 2022-05-12 | Fractionating tower top pressure control method and device based on air pressure unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114870422B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011137576A (en) * | 2009-12-28 | 2011-07-14 | Sanki Eng Co Ltd | Method of operating pressurized-fluidized incinerator and pressurized-fluidized incinerator facility |
| CN103212344A (en) * | 2012-01-19 | 2013-07-24 | 杭州林达化工技术工程有限公司 | Anti-surge compression cycle device capable of regulating recycle ratio of synthesis loop |
| CN103867446A (en) * | 2012-12-07 | 2014-06-18 | 三星泰科威株式会社 | Method for anti-surge controlling of multi-stage compressing system |
| CN204281683U (en) * | 2014-11-27 | 2015-04-22 | 山东昌邑石化有限公司 | Separation column rich gas returns the device that flies |
| CN108341417A (en) * | 2018-04-02 | 2018-07-31 | 河南龙宇煤化工有限公司 | A kind of starting method of ammonia compression unit |
| CN110649288A (en) * | 2019-09-30 | 2020-01-03 | 潍柴动力股份有限公司 | Air supply system and method for proton exchange membrane fuel cell |
| CN110681328A (en) * | 2019-09-02 | 2020-01-14 | 国家能源集团宁夏煤业有限责任公司 | Fischer-Tropsch reactor ESD interlocking control method and control system |
| CN111524439A (en) * | 2020-04-02 | 2020-08-11 | 青岛海尔空调电子有限公司 | Control method for simulation tool of compressor |
| CN211501046U (en) * | 2020-01-19 | 2020-09-15 | 山东东方华龙工贸集团有限公司 | Rich gas pressurizing and conveying device of fractionating tower |
| CN212068678U (en) * | 2020-01-10 | 2020-12-04 | 华亭煤业集团有限责任公司 | System for improving fluidized nitrogen quantity of fluidized bed reactor by utilizing compressor |
| CN212454915U (en) * | 2020-04-26 | 2021-02-02 | 梅胜 | Control system for full-automatic switching of main fan and standby fan of catalytic device |
| CN113404707A (en) * | 2021-06-01 | 2021-09-17 | 开封迪尔空分实业有限公司 | A pressure boost tower for empty |
| CN113792502A (en) * | 2021-09-15 | 2021-12-14 | 中国船舶重工集团公司第七0三研究所 | Design method for middle-stage anti-surge bleeding flow of gas turbine compressor at low rotating speed |
| TW202210723A (en) * | 2020-08-31 | 2022-03-16 | 復盛股份有限公司 | Variable speed multi-stage compressor and control method thereof |
| CN114383228A (en) * | 2020-10-16 | 2022-04-22 | Lg电子株式会社 | Cooling device system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10001365A1 (en) * | 2000-01-14 | 2001-07-19 | Man Turbomasch Ag Ghh Borsig | Regulating turbo compressor to prevent pumping involves using different delay time constants for increasing/decreasing difference signal for slower changes towards pump limiting line |
| DE10304063A1 (en) * | 2003-01-31 | 2004-08-12 | Man Turbomaschinen Ag | Method for the safe operation of turbo compressors with a surge limit control and a surge limit control valve |
| EP2331825B1 (en) * | 2008-10-07 | 2017-06-21 | Shell Internationale Research Maatschappij B.V. | Method of controlling a compressor and apparatus therefor |
| US9175691B2 (en) * | 2012-10-03 | 2015-11-03 | Praxair Technology, Inc. | Gas compressor control system preventing vibration damage |
| US10816947B2 (en) * | 2017-03-28 | 2020-10-27 | Uop Llc | Early surge detection of rotating equipment in a petrochemical plant or refinery |
-
2022
- 2022-05-12 CN CN202210513504.8A patent/CN114870422B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011137576A (en) * | 2009-12-28 | 2011-07-14 | Sanki Eng Co Ltd | Method of operating pressurized-fluidized incinerator and pressurized-fluidized incinerator facility |
| CN103212344A (en) * | 2012-01-19 | 2013-07-24 | 杭州林达化工技术工程有限公司 | Anti-surge compression cycle device capable of regulating recycle ratio of synthesis loop |
| CN103867446A (en) * | 2012-12-07 | 2014-06-18 | 三星泰科威株式会社 | Method for anti-surge controlling of multi-stage compressing system |
| CN204281683U (en) * | 2014-11-27 | 2015-04-22 | 山东昌邑石化有限公司 | Separation column rich gas returns the device that flies |
| CN108341417A (en) * | 2018-04-02 | 2018-07-31 | 河南龙宇煤化工有限公司 | A kind of starting method of ammonia compression unit |
| CN110681328A (en) * | 2019-09-02 | 2020-01-14 | 国家能源集团宁夏煤业有限责任公司 | Fischer-Tropsch reactor ESD interlocking control method and control system |
| CN110649288A (en) * | 2019-09-30 | 2020-01-03 | 潍柴动力股份有限公司 | Air supply system and method for proton exchange membrane fuel cell |
| CN212068678U (en) * | 2020-01-10 | 2020-12-04 | 华亭煤业集团有限责任公司 | System for improving fluidized nitrogen quantity of fluidized bed reactor by utilizing compressor |
| CN211501046U (en) * | 2020-01-19 | 2020-09-15 | 山东东方华龙工贸集团有限公司 | Rich gas pressurizing and conveying device of fractionating tower |
| CN111524439A (en) * | 2020-04-02 | 2020-08-11 | 青岛海尔空调电子有限公司 | Control method for simulation tool of compressor |
| CN212454915U (en) * | 2020-04-26 | 2021-02-02 | 梅胜 | Control system for full-automatic switching of main fan and standby fan of catalytic device |
| TW202210723A (en) * | 2020-08-31 | 2022-03-16 | 復盛股份有限公司 | Variable speed multi-stage compressor and control method thereof |
| CN114383228A (en) * | 2020-10-16 | 2022-04-22 | Lg电子株式会社 | Cooling device system |
| CN113404707A (en) * | 2021-06-01 | 2021-09-17 | 开封迪尔空分实业有限公司 | A pressure boost tower for empty |
| CN113792502A (en) * | 2021-09-15 | 2021-12-14 | 中国船舶重工集团公司第七0三研究所 | Design method for middle-stage anti-surge bleeding flow of gas turbine compressor at low rotating speed |
Non-Patent Citations (10)
| Title |
|---|
| ITCC防喘振控制系统在焦化压缩机组中的应用;杨雪;杨德志;;齐鲁石油化工(第02期);第72-74和92页 * |
| PLC在重油催化裂化装置气压机组控制系统的应用;龚红梅, 郑龙, 王智;石油化工自动化(第06期);第142-146页 * |
| Tricon系统在催化富气压缩机性能控制中的应用与改进;任海杰;;中国新技术新产品(第07期);第16-18页 * |
| 任海杰 ; .Tricon系统在催化富气压缩机性能控制中的应用与改进.中国新技术新产品.2015,(第07期),第16-18页. * |
| 延迟焦化装置富气压缩机防喘振系统节能优化;葛昕;梁广月;梅胜;;通用机械(第01期);第34-37页 * |
| 机组优化控制技术在压缩机节能改造中的应用;郭治田;马孝强;翟志彬;;通用机械(第04期);第46-50页 * |
| 杨雪 ; 杨德志 ; .ITCC防喘振控制系统在焦化压缩机组中的应用.齐鲁石油化工.2017,(第02期),第72-74和92页. * |
| 葛昕 ; 梁广月 ; 梅胜 ; .延迟焦化装置富气压缩机防喘振系统节能优化.通用机械.2017,(第01期),第34-37页. * |
| 郭治田 ; 马孝强 ; 翟志彬 ; .机组优化控制技术在压缩机节能改造中的应用.通用机械.2016,(第04期),第46-50页. * |
| 龚红梅,郑龙,王智.PLC在重油催化裂化装置气压机组控制系统的应用.石油化工自动化.2004,(第06期),第142-146页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114870422A (en) | 2022-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101539151B (en) | Method and device for controlling inverter compressor | |
| JP2005044349A (en) | Improved pattern recognition adaptive controller | |
| CN103438429B (en) | Boiler-steam dome tank level control system | |
| CN113062874B (en) | Automatic control system for slurry amount of wet desulphurization slurry circulating pump | |
| CN114870422B (en) | Fractionating tower top pressure control method and device based on air pressure unit | |
| RU2578297C1 (en) | Method and device for regulation of automatic pressure control system (apcs) in the main pipeline for transferring oil products | |
| CN111462925A (en) | Nuclear reactor power adjusting method and system based on operation data | |
| CN111188784B (en) | Anti-surge self-adaptive control method | |
| CN104712378A (en) | Main steam pressure closed loop energy-saving control method and system for thermal power generating unit | |
| CN113910148B (en) | Control method and control system for servo electric batch | |
| CN113094896B (en) | Power plant heat supply unit optimization control method | |
| CN106086271A (en) | For the method reducing the energy efficiency of the blast furnace blower compressed air amount of leaking informaton | |
| CN102392813A (en) | System for adjusting and controlling revolving speed of compressor unit | |
| CN101533281B (en) | Multi-wire cutting machine mortar temperature intelligent PID control method | |
| CN107143492B (en) | Accurately control the device and method of steel-making medium lift pump group hydraulic pressure flow | |
| CN211522240U (en) | Pressure monitoring and control system of smelting reduction furnace and smelting reduction furnace system | |
| CN202100437U (en) | Compressor unit speed adjustment control system | |
| CN106979327A (en) | A kind of many gear speed governing of fluid coupling and equipment safety operation control system and its implementation | |
| CN206754338U (en) | A kind of more gear speed governing of fluid coupling and equipment safety operation control system | |
| CN111323156B (en) | Robust hydraulic dynamometer control method | |
| CN108980438B (en) | Bivalve Staged cotrol method and control device | |
| CN107500519B (en) | Glass plate tempering process control method | |
| CN108138760B (en) | Control system and method for controlling a compression system | |
| CN110207096B (en) | Intelligent control method for drum water level of thermal boiler | |
| CN103291691B (en) | A kind of hydraulic cooling system temperature control method, equipment and engineering machinery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |