CN110273825A - Double pump double oil circuits parallel connection supercharging control method - Google Patents
Double pump double oil circuits parallel connection supercharging control method Download PDFInfo
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- CN110273825A CN110273825A CN201910551852.2A CN201910551852A CN110273825A CN 110273825 A CN110273825 A CN 110273825A CN 201910551852 A CN201910551852 A CN 201910551852A CN 110273825 A CN110273825 A CN 110273825A
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- Prior art keywords
- control
- double
- parallel connection
- oil circuits
- control method
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
Abstract
The invention belongs to aviation oil circuit control technology fields, and in particular to double pump double oil circuits parallel connection supercharging control method.This method is to connect a short circuit in two pumps exit, while being controlled using a pressure two close cycles ratio control system, to obtain identical outlet pressure.The independent control system of two-way is joined together, is all the way active control, another way is driven control, and uses two close cycles ratio control system.It using control method proposed by the present invention, solves double oil circuits meet pressure imbalance, brings the superposition of flow folded the problem of subtracting, control precision is significantly improved.
Description
Technical field
The invention belongs to aviation oil circuit control technology fields, and in particular to double pump double oil circuits parallel connection supercharging control method.
Background technique
Certain type product liquid feeding system test refers to a test for carrying out pressure liquid feeding to certain type product by pipeline.According to
Corresponding code requirement, the pressure at filling opening will reach defined numerical value, to meet the requirement of test.Therefore reach and control
Oiling pressure processed is to meet the necessary condition of test.
1 due to using two-way two parallel pumps mode, in two pipeline meet pressure due to the individual difference and its pipe of pump
The difference on road, different pipeline pipe resistances are different, cause the flow after converging and are possible to generate superposition, it is also possible to generate folded
Subtract effect, therefore it is difficult point therein that how analysis and research, which could generate superposition,；
2 take any control mode to control associated two-way flow or pressure；To reach the setting pressure at filling opening；
3 how the system parameter in setting control system realizes that pressure controls and reaches required control precision.
For above problem, there is presently no corresponding reply means.
Summary of the invention
Goal of the invention: it in order to solve double oil circuits meet pressure imbalance, brings the superposition of flow is folded to subtract problem, proposes double
Pump double oil circuits parallel connection supercharging control method.
Technical solution: by analysis and research, discovery individual performance otherness, difference of inlet line since same model pumps
Property, liquid level of tank difference cause two pumps outlet pressure different, this is to cause A pipeline different from pressure at B pipeline point
The main reason for.Why it is sometimes identical be because corresponding position locating for electric hydraulic control valve formed certain pipe resistance so as to form
Two different pipelines, different pump intake pressures and obtain the pressure of identical meet, be accidental phenomenon.Therefore it obtains following
Conclusion: pump intake pressure is not both the pressure main cause influenced at point.Double pump double oil circuits proposed by the present invention are simultaneously as a result,
Join supercharging control method, this method is to connect a short circuit in two pumps exit, while using a pressure two close cycles
Ratio control system is controlled, to obtain identical outlet pressure.
Former design experiment liquid feeding device systems use the using and the reserved mode, altogether two-way, and the road A, the road B are all made of PID computer
Closed-loop control is mutually independent.
In order to increase flow, two-way liquid feeding system is needed to work at the same time, if relatively independent control system is controlled respectively
System, which will form, to be interfered with each other, it is therefore desirable to the independent control system of two-way be joined together, be all the way active control, another way is
Driven control, and use two close cycles ratio control system.Using active amount measured value multiplied by after a certain coefficient as driven control
The setting value of device.Since two-way liquid feeding system design parameters are identical, coefficient is set as 1.The coefficient is referred to as ratio control
Coefficient processed, k=F1/F2, F1 are main momentum, and F2 is from momentum.The determination of the coefficient and control purpose, control device-dependent,
Principle is shown in specific embodiment.
Advantageous effects
Test proves that double pump double oil circuits parallel connection pressurization control technology is increased flow by double pump two-way parallel way and reached with this
To testpieces liquid feeding pipeline inlet pressure is increased, using two close cycles Ratio control technology, controls precision and reach test requirements document.
The technology is that control engineering theory is applied to one example of experiment system design, still belongs to first in correlation engineering field
It is secondary, there is certain reference and promotional value.
Detailed description of the invention
Fig. 1 is principle of the invention figure,
Fig. 2 is single oil circuit pressure control principle drawing,
Fig. 3 is pressure two close cycles Ratio control schematic diagram；
Wherein, 1- pressure sensor, 2- pressure sensor A, 3- testpieces, 4- mass flowmenter A, 5- electrichydraulic control A, 6-
Oil pump A, 7- flow container A, 8- mass flowmenter B, 9- electric hydraulic control valve B, 10- oil pump B, 11- flow container B, 12- pressure sensor B,
13- short circuit.
Specific embodiment mode
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
In Fig. 1, using double pump double oil circuits parallel connection supercharging control method proposed by the present invention, this method is exported in two pumps
One short circuit of place's connection, while being controlled using a pressure two close cycles ratio control system, to obtain identical
Outlet pressure.Flow control switch is provided on short circuit.Full-shut position is in the electric hydraulic control valve on the A pipeline, and B
When electric hydraulic control valve B on pipeline is shown in a fully open operation, flow caused by A, B all passes through B pipeline and reaches point.Work as A
When electric hydraulic control valve A on pipeline is gradually opened, the flow in A pipeline is incrementally increased by zero, while the cross section of two pipelines
The sum of product also incrementally increases, and the total flow of two pipelines also incrementally increases.Increase inlet-pressure by increasing flow to realize
The purpose of power.When the electric hydraulic control valve A on A pipeline, which is shown in a fully open operation, to be progressively closed off, the cross-sectional area sum of two pipelines
Also it gradually reduces, flow gradually reduces, and pressure also gradually reduces.It lays the foundation for the pressure control of liquid feeding entrance.
It can see by Fig. 3 schematic diagram, due to using active control and driven control, driven control is controlled than actively
Time processed is lagged, and can be had an impact to control precision.On the one hand gate valve is driven to make using hydraulic actuator in original design
Frequency response for actuator, electrohydraulic servo valve substantially reduces lag time by standard-sized sheet to fully closed time ﹤ 0.5s for 30Hz；It is another
Aspect is controlled using PID computer, wherein and P is ratio control, and I is integral, and D is differential control, they are interrelated, for
Different control systems selects different control parameters, and to reach stable control system, higher control precision is quickly rung
The control system answered.Higher control quality and precision are obtained by preferred proportion K, the time of integration and derivative time.
Claims (8)
1. double pump double oil circuits parallel connection supercharging control method, it is characterised in that: this method is one short in the connection of two pumps exit
Road is taken over, to obtain identical outlet pressure.
2. double pump double oil circuits parallel connection supercharging control method according to claim 1, it is characterised in that: oil circuit where two pumps
The independent control system of two-way is joined together to be uniformly controlled using unified pressure two close cycles Ratio control.
3. double pump double oil circuits parallel connection supercharging control method according to claim 1, it is characterised in that: the pressure two close cycles
In Ratio control, definition is wherein active control all the way, and another way is driven control.
4. double pump double oil circuits parallel connection supercharging control method according to claim 1, it is characterised in that: the pressure two close cycles
Ratio control controls active control and driven control by Ratio control coefficient.
5. according to double pump double oil circuits parallel connection supercharging control method described in claim 2-4 any one, it is characterised in that: described
Pressure two close cycles Ratio control is controlled using PID computer, wherein P is ratio control, and I is integral, and D is differential control.
6. double pump double oil circuits parallel connection supercharging control method according to claim 4, it is characterised in that: the Ratio control system
Number k=F1/F2, F1 are main momentum, and F2 is from momentum.
7. according to benefit require 4 described in double pump double oil circuits parallel connection supercharging control method, it is characterised in that: the Ratio control coefficient
K=1.
8. double pump double oil circuits parallel connection supercharging control method according to claim 1, it is characterised in that: on the short circuit
It is provided with flow control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910551852.2A CN110273825A (en) | 2019-06-24 | 2019-06-24 | Double pump double oil circuits parallel connection supercharging control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910551852.2A CN110273825A (en) | 2019-06-24 | 2019-06-24 | Double pump double oil circuits parallel connection supercharging control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110273825A true CN110273825A (en) | 2019-09-24 |
Family
ID=67961660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910551852.2A Pending CN110273825A (en) | 2019-06-24 | 2019-06-24 | Double pump double oil circuits parallel connection supercharging control method |
Country Status (1)
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089217U (en) * | 1991-04-10 | 1991-11-20 | 刘敬善 | Oil makeup device for sealing system of turbogenerator |
| CN103452825A (en) * | 2013-09-12 | 2013-12-18 | 上海三一重机有限公司 | Flow control method for pressure control pump |
| CN104595222A (en) * | 2014-11-13 | 2015-05-06 | 南昌大学 | Fluid control system |
| CN204755435U (en) * | 2015-04-13 | 2015-11-11 | 中国海洋石油总公司 | Subsea production system's hydraulic power unit |
| CN205014005U (en) * | 2015-10-14 | 2016-02-03 | 西安华江环保科技股份有限公司 | Lubricant station of centrifugal compressor group of main and secondary oil pump intercommunication |
| CN105645343A (en) * | 2016-02-29 | 2016-06-08 | 中国航空工业集团公司沈阳飞机设计研究所 | Automatic balancing control method for double-way pressure refueling |
| CN205485658U (en) * | 2016-03-14 | 2016-08-17 | 天津长芦海晶集团有限公司 | Two closed loop ratio control of flow system for in PA6 production process |
| CN207701324U (en) * | 2018-01-02 | 2018-08-07 | 常州市华立液压润滑设备有限公司 | A kind of large-scale compressor lubricating system |
-
2019
- 2019-06-24 CN CN201910551852.2A patent/CN110273825A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089217U (en) * | 1991-04-10 | 1991-11-20 | 刘敬善 | Oil makeup device for sealing system of turbogenerator |
| CN103452825A (en) * | 2013-09-12 | 2013-12-18 | 上海三一重机有限公司 | Flow control method for pressure control pump |
| CN104595222A (en) * | 2014-11-13 | 2015-05-06 | 南昌大学 | Fluid control system |
| CN204755435U (en) * | 2015-04-13 | 2015-11-11 | 中国海洋石油总公司 | Subsea production system's hydraulic power unit |
| CN205014005U (en) * | 2015-10-14 | 2016-02-03 | 西安华江环保科技股份有限公司 | Lubricant station of centrifugal compressor group of main and secondary oil pump intercommunication |
| CN105645343A (en) * | 2016-02-29 | 2016-06-08 | 中国航空工业集团公司沈阳飞机设计研究所 | Automatic balancing control method for double-way pressure refueling |
| CN205485658U (en) * | 2016-03-14 | 2016-08-17 | 天津长芦海晶集团有限公司 | Two closed loop ratio control of flow system for in PA6 production process |
| CN207701324U (en) * | 2018-01-02 | 2018-08-07 | 常州市华立液压润滑设备有限公司 | A kind of large-scale compressor lubricating system |
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Application publication date: 20190924 |
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