CN105422277B - Stepless free regulating speed diesel oil engine centrifugal pump group is closed - Google Patents
Stepless free regulating speed diesel oil engine centrifugal pump group is closed Download PDFInfo
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- CN105422277B CN105422277B CN201510956853.7A CN201510956853A CN105422277B CN 105422277 B CN105422277 B CN 105422277B CN 201510956853 A CN201510956853 A CN 201510956853A CN 105422277 B CN105422277 B CN 105422277B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/06—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/04—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/02—Self-priming pumps
Abstract
The present invention relates to a kind of stepless free regulating speed diesel oil engine centrifugal pump group to close, including centrifugal pump, diesel engine, control system, unsplit bedplate；Control system includes speed probe, programmable controller, electron speed regulator and throttle actuator；Throttle actuator is the mechanical governor of diesel engine, and its speed adjusting lever is located at rated speed position and fixed, and its Fuel Cut Solenoid Valve is proportional solenoid valve, and electron speed regulator is located exactly at zero-bit when its shutdown handle is located at parking spot.Present invention employs three closed loop constant speed control schemes and E-Gas drive mechanism, realizes three kinds of permanent rotating speed, constant pressure and constant flow stable conditions mode of operations of pump group, has widened the working range and working condition of pump group.
Description
Technical field
The present invention relates to a kind of stepless free regulating speed diesel oil engine-centrifugal pump combination, belong to field of fluid machinery and oneself
Dynamicization control field.
Background technology
Centrifugal pump is being a kind of most popular machinery of the mankind, in Aero-Space, military combat, navigation engineering, petrochemical industry
And the various aspects such as plumbing have and are widely applied very much.Centrifugal pump be using impeller rotate and cause water occur centrifugal motion come
Work, its operation principle is：After liquid enters housing by impeller, because the runner of volute housing gradually expands, liquid
The flow velocity of body is gradually small with dropping, and part kinetic energy is converted into static energy, and then liquid discharges housing with higher pressure, same with this
When impeller central form vacuum because liquid is thrown away, and the pressure at liquid level is higher than import, and then liquid connects under atmospheric pressure
It is continuous constantly to enter impeller, then constantly discharge.
Ordinary Centrifugal Pumps, it is very inconvenient if suction liquid level should pour water in advance under impeller, during startup.Meanwhile in order to
Liquid is lived in pump internal memory, suction line import needs installation bottom valve in advance, and bottom valve causes very big hydraulic loss to pump at work.It is general
Logical self-priming centrifugal pump, pump frame use cast iron more, and power uses motor, and pump group is heavy and is not easy to move.
In the case of plateau, atmospheric pressure reduces, but the inlet pressure of centrifugal pump reduces the cavitation phenomenons for easily causing pump
Occur, pump is caused to damage.So tableland circumstance is very harsh to the service requirement of centrifugal pump, pump group not cavitation can be realized on plateau
It is to ensure the key that whole pump group can be run steadily in the long term.
Centrifugal pump typically provides power by diesel engine, and rotating speed is the core work parameter of pump group.Pump is in each work
When being run under condition, diesel engine can all have that a rotating speed is matched, as long as rotating speed determines, other running parameters of pump group
It is determined that such pump group can be with more efficient work.But when outer load changes, the output torque of diesel engine
It can change, rotating speed is also correspondingly changed, and diesel engine can be caused stall, vexed car and the increased feelings of oil consumption occur
Condition, and the rotating speed of diesel engine directly decides that can pump group in desired rotating speed point normal work.Therefore, diesel oil is kept
The stability of engine speed is very important.When operating mode changes, it is necessary to when changing system working parameters, just need
Change its working speed, but the rotating speed of ordinary diesel oil engine is set before dispatching from the factory, and is adjusted by regulation accelerator open degree
Rotary speed of diesel engine is saved, there are three rated engine speeds, starts idling, nominal operation rotating speed, maximum speed, its rotation speed change is
Great-jump-forward, intermediateness is unstable, and the impact to equipment is larger, but this regulation process is unstable and can not accurately adjust
Rotation speed change is saved, other uncontrollable rotating speeds, can not realize stepless speed regulation in addition to these three working speeds, thus in order to protect
The multi-state operation of pump group is demonstrate,proved, must just design the stepless free speed adjusting module of diesel engine, this is also the difficult point for needing to capture
And key point.
Referring to Fig. 2, the original speed control principle of diesel engine is to be returned according to speed adjusting lever position difference to adjust governor spring
The size of multiple power simultaneously has different flyball centrifugal force to reach the principle realization control rotating speed of balance with it；When speed adjusting lever is toward speed governing
When initial tension of spring increases direction rotation, rack moves toward big oil mass direction, and oil mass increase, rotating speed rises, the centrifugal force of flyball
Increase therewith, when centrifugal force and governor spring tension balanced, rotary speed of diesel engine is stablized in rotating speed of target, works as governor spring
Pretightning force becomes hour, and rotary speed of diesel engine declines can be near rotating speed of target, centrifugal force and governor spring tension balanced；So as to
Reach the purpose of speed governing.
Fuel shut-off solenoid has two positions, adhesive and free state, when energized, electromagnetic actuation, electromagnet guide rod with
Shutdown handle departs from, and does not influence the work of speed regulator, and when power is off, electromagnet guide rod stretches out under the effect of its internal spring force,
Act on shutdown handle, shift shutdown handle onto parking spot, you can make oil pump oil-break, diesel engine shuts down.
Therefore, the original regulation process of diesel engine is unstable and can not accurately adjust rotation speed change, it is impossible to realizes
Stepless speed regulation.
The content of the invention
It is an object of the present invention to provide a kind of stepless free regulating speed diesel oil engine-centrifugal pump combination, can meet that pump group is permanent and turn
The requirement of speed, three kinds of constant pressure, constant flow mode of operations.
The present invention technical solution be：
A kind of stepless free regulating speed diesel oil engine-centrifugal pump combination, including centrifugal pump, diesel engine, control system,
Unsplit bedplate；The diesel engine includes oil pump；It is characterized in that, the diesel engine by bracket and main shaft with from
Heart pump is connected, and is placed on unsplit bedplate；The control system includes speed probe, programmable controller, electron speed regulator
And throttle actuator；The throttle actuator is the mechanical governor of diesel engine, also, the speed governing of the mechanical governor
Handle is located at rated speed position and fixed, and the Fuel Cut Solenoid Valve of the mechanical governor is proportional solenoid valve, described
The electron speed regulator is located exactly at zero-bit when the shutdown handle of mechanical governor is located at parking spot；The speed probe from
Diesel engine gathers tach signal and is sent into programmable controller；The programmable controller is according to tach signal output speed
Regulate signal；Rotary speed regulating signal is converted into the current signal proportional to rotary speed regulating signal and sent by the electron speed regulator
Enter the proportional solenoid valve of throttle actuator.
Above-mentioned centrifugal pump include housing, inducer, impeller, the S types that are communicated with housing water inlet intake bend pipe, go out with housing
Fluid reservoir that the mouth of a river communicates, gas-liquid separation chamber for UNICOM's S types water inlet bend pipe and fluid reservoir, the impeller are arranged in housing
It is arranged in gas-liquid separation room, fluid return ports is provided with the side wall between the gas-liquid separation chamber and fluid reservoir.
Above-mentioned control system also include inlet pressure transmitter, outlet pressure transmitter, 1# filtering outlets pressure transmitter,
2# filtering outlets pressure transmitter, 1# flowmeters and 2# flowmeters；Inlet pressure transmitter and the outlet pressure transmitter point
Not An Zhuan centrifugal pump water inlet and water outlet；The 1# filtering outlets pressure transmitter, 1# flowmeters, 2# are filtered out
Mouth pressure transmitter and 2# flowmeters are separately mounted to the 1# filters of diesel engine and the exit of 2# filters；The entrance pressure
Power transmitter, outlet pressure transmitter, 1# filtering outlets pressure transmitter, 2# filtering outlets pressure transmitter, 1# flowmeters and
The pressure signal and flow signal of 2# flowmeters output are respectively fed to programmable controller.
Above-mentioned programmable controller can pass through pid control algorithm output speed Regulate signal according to tach signal；It is above-mentioned
Programmable controller can also distinguish output speed according to tach signal, pressure signal and flow signal by pid control algorithm
Regulate signal, pressure adjustment signal and flow regulating signal；
The pid control algorithm expression formula is：
In formula：MV is output valve；KPIt is proportional gain；E (t) is deviation；PV is measured value；SV is desired value；KDIt is micro-
Divide gain；PV (t) S are PV (t) differential values；KIIt is storage gain；It is E (t) integrated value.
Advantages of the present invention：
1st, the stepless free regulating speed diesel oil engine of the present invention-centrifugal pump combination, for conveying the media such as water or oil, not by
Electric power, tableland circumstance etc. limit, and can be widely applied to military combat, outdoor sports etc., substantially increase outdoorsman motor-driven
Property.
2nd, present invention employs E-Gas drive mechanism, because drive mechanism is controlled by electric signal, control signal can be with
Inputted by manual knob or touch-screen speed setting two ways, the control signal of input moves drive mechanism so that bavin
Oil turbine accelerator open degree changes, so as to control diesel engine by controlling diesel engine fuel-firing to convey fuel-flow control
Rotating speed, can between idling and maximum speed step-less adjustment, can be achieved constant pressure oil supply.In order that diesel engine is in office
Anticipate rotating speed can stable operation, the electron speed regulator of control system of the present invention controls for inner ring, and inner ring controls and is divided into electric current control
Ring and rotating speed control ring processed, stabilization of speed can be made within the scope of one to rotating speed coarse adjustment；Vehicle Controller controls for outer shroud, can
To rotating speed fine tuning, make stabilization of speed in setting value.Therefore, no matter load and how to change under each operating mode, bavin can be ensured
The invariablenes turning speed of oil turbine, any one the rotating speed point of diesel engine stable operation at 1100~3600 revs/min can be made
On, be so achieved that the rotating speed of diesel engine is accurate, stably, continuous function of stepless speed regulation, solve diesel engine
The change of rotating speed great-jump-forward, intermediateness are unstable, impact the problem of larger to equipment.
3rd, due to pump group a nominal operation rotating speed to should pump group one group of rated operating pressure and flow.The present invention
On the basis of electronic stepless speed regulation, employ three closed loop constant speed control schemes, by speed probe, programmable controller,
Electron speed regulator, throttle actuator etc. form, by accurately continuously adjusting rotating speed and pressure sensor and flow sensing
The feedback signal of device, three kinds of permanent rotating speed, constant pressure and constant flow stable conditions mode of operations of pump group are realized, have widened pump group
Working range and working condition.
4th, the base of the stepless free regulating speed diesel oil engine of the present invention-centrifugal pump combination, using easy to remove and carrying
Hand lifts formula unsplit bedplate so that pump invention possesses higher mobility.
5th, centrifugal pump of the invention uses self-absorption centrifugal pump configuration, and housing design has the water inlet bend pipe of S types, is designed with simultaneously
Fluid reservoir.A part of medium can be thus stored in pump after this has conveyed medium so that when next time starts
It need not pour in down a chimney, without bottom valve, more quickly suct medium, the operating can through short time pump sucts liquid normal work,
The self-priming requirement of pump group is realized, increases outdoorsman convenience.Housing is also devised with gas-liquid separation chamber and fluid return ports,
After pump startup, due to the turning effort of impeller, the air and liquid of suction line are sufficiently mixed, and are discharged to gas-liquid separation
Room, the gas discharge on gas-liquid separation chamber top, the liquid of bottom come back to impeller, and the gas of suction line by return port
Mixing, until the gas in suction line and pump is completely exhausted out to complete self-priming, normal work.
6th, the present invention adds inducer before the impeller of pump, can produce lift, and the pressure for improving pump inlet improves the anti-of pump
Cavitation performance.Meanwhile centrifugal pump installs inducer additional, the net positive suction head of pump can be reduced so that the anti-cavitation performance of pump group significantly carries
Height, the plateau pump group even in height above sea level 5000m can also safe operation.
7th, the present invention can monitor the work of diesel engine pump group (such as engine oil pressure, oil temperature, diesel engine work turn
Speed, supply reservoir oil level, pump group inlet pressure, pump group working flow) and system work (such as fluid reservoir medium reserves, filtering
Device working condition, medium usage amount etc.) performance parameters.To diesel engine hypervelocity, driving, machine oil shortcoming, machine oil temperature in system
Fault alarm and the protections such as height, the excessively high/low, plugged filter of tank level are spent, and all kinds of control parameters, alarm signal are led to
Bus output is crossed, in order to central control room teletransmission centralized Control.
Brief description of the drawings
Fig. 1 is centrifugal pump and diesel engine structural representation of the present invention；
Fig. 2 is the mechanical throttle control system structural representation of existing diesel engine；
Fig. 3 is the stepless free speed governing type throttle control system structural representation of diesel engine of the present invention；
Fig. 4 is the stepless electronic governing system theory diagram of diesel engine of the present invention；
Fig. 5 is rotary speed of diesel engine control system principle of the present invention；
Fig. 6 is diesel engine control system flow chart of the present invention；
Wherein：1- self-priming centrifugal pumps, 100- water inlets, 101- housings, 102- inducers, 103- locking nuts, 104- leaves
Wheel, 105- mechanical seals, 106- main shafts, 107- brackets, 108-S types water inlet bend, 109- fluid return ports, 110- fluid reservoirs,
111- delivery ports, 112- gas-liquid separation chamber, 2- diesel engines, 20- mechanical governors, 22- oil pumps, 201- speed adjusting levers,
202- oil-break electromagnet, 203- flyballs, 204- sliding sleeves, 205- shutdown handles, 206- governor springs, 207- boosting-rods, 208- stop
Truck position, 209- racks, 4- unsplit bedplates；
Embodiment
Referring to Fig. 1, the housing 101 of the centrifugal pump of pump group of the present invention is built with inducer 102, impeller 104, mechanical seal
105；Fluid passes sequentially through inducer 102, impeller 104, then the delivery port by housing after being entered by the water inlet 100 of housing 101
111 outflows；Inducer 102 and impeller 104 are driven with main shaft by key；One end of main shaft 106 is power intake, passes through extension
Axle construction is held tightly on diesel engine machine crankshaft with attachment screw；The main shaft other end successively with inducer 102, impeller 104, machinery
Sealing 105 is fixedly connected, and inducer is located at the front end of impeller.The end set of the main shaft other end has spindle nose locking nut 103, axle
Head locking nut is used to carry out axial restraint to inducer and impeller.During installation, impeller location in the outlet passage of housing, its
Effect is that have pressure to go out by housing runner in the medium by impeller effect；Inducer position intakes in bend pipe in housing S types,
Medium can be allowed just to be acted on before being acted on by impeller by inducer, improve anti-cavitation performance.Revealed in view of medium,
Mechanical seal is installed after impeller on main shaft.It is fixed together between housing and diesel engine with bracket, ensures unit
Run stability.Pump group has unsplit bedplate 4 easy to remove, and self-priming centrifugal pump and diesel engine integral installation are in base
On.
As shown in figure 3, the shutdown handle 205 of mechanical governor 20 is pulled into parking spot 208, adjusted in this position and electronics
The zero-bit connection of fast device.Speed adjusting lever 201 should pull rated speed position, and be fixed up.After connection, it is ensured that connecting rod is transported
It is dynamic flexible, it is fixed reliable.Original Fuel Cut Solenoid Valve is replaced with proportion electro-magnet again.The function of proportion electro-magnet is by ratio control
The electric signal converting to force of amplifier output processed or displacement.Proportion electro-magnet thrust is big, simple in construction, to oil cleanliness requirement
Not high, easy to maintenance, cost is low, and armature chamber can make high pressure resistant structure, be in electrical-liquid control element it is wide variety of electricity-
Mechanical switch device.
Control system 3 includes programmable controller, touch-screen, diesel engine electron speed regulator, throttle actuator, necessary
When may also include inlet pressure transmitter, outlet pressure transmitter, 1# filtering outlets pressure transmitter, 2# filtering outlets pressure become
Send device, environment temperature transmitter, tank gauge, oil temperature oil pressure transmitter, 1# flowmeters, 2# flowmeters, 1# speed probes,
2# speed probes and oil tank level meter.It is by storage battery, diesel engine shown in Fig. 4, actuator, electron speed regulator, can compiles
The control system 3 that range controller, touch-screen, pump group, various sensors and control circuit form.
Programmable controller, touch-screen and diesel engine electron speed regulator are arranged in control system.Throttle actuator,
Oil temperature oil pressure transmitter, environment temperature transmitter, 1# speed probes and 2# speed probes are arranged on diesel engine.
Inlet pressure transmitter and outlet pressure transmitter are separately mounted to the water inlet and water outlet of centrifugal pump；1#
Filtering outlet pressure transmitter, 1# flowmeters, 2# filtering outlets pressure transmitter and 2# flowmeters are separately mounted to diesel engine
The exit of 1# filters and 2# filters；Inlet pressure transmitter, outlet pressure transmitter, 1# filtering outlet pressure invertings
Device, 2# filtering outlets pressure transmitter, the output signal of 1# flowmeters and 2# flowmeters are sent into programmable controller.
Tank gauge is arranged on the fuel tank of diesel engine.Oil tank level meter is arranged on oil tank.
The major function of throttle actuator is that the position signalling of rotational speed governor output is converted into the straight-line displacement specified
Position is to control fuel supply volume.The input of throttle actuator is electric signal, and output is mechanical linear motion.Machinery linear motion
With being entered as proportionate relationship.Throttle actuator has excellent control performance, small volume, reliability high and pacified with oil pump integral type
Dress, the features such as good seal performance, the speed governing index that diesel engine can be improved and the Automated condtrol for realizing diesel engine and
Protection.Throttle actuator tip designs have manual regulating device, can in particular cases realize the function of regulation fuel delivery manually.
Operation principle of the present invention：
Rotary speed of diesel engine control system principle is as shown in figure 5, speed probe is believed from diesel engine collection rotating speed
Number, square-wave signal is converted into by corresponding change-over circuit, rotating speed PV is calculated by measuring umber of pulse, is sent into PLC technology
Device, when measured value PV and target set point SV are unequal, produce deviation signal E (t)=SV-PV, it is preset in the controller
Pid control algorithm carries out computing to deviation signal, and exports corresponding Regulate signal MV, and Regulate signal drives through electron speed regulator
Throttle actuator exports the current signal proportional to Regulate signal, adjusts the rotating speed of diesel engine, deviation is leveled off to zero,
Diesel engine is allowed to keep constant-speed operation.
When external load increases suddenly, system control throttle actuator increase aperture, to avoid diesel oil rotating speed from dropping suddenly
Low or even flame-out phenomenon；When external load reduces suddenly, system control throttle actuator reduces aperture, to avoid diesel oil from sending out
Motivation rotating speed the rise suddenly even phenomenon of driving.
Pid control algorithm basic representation is：
In formula：MV is output valve；KPIt is proportional gain；E (t) is deviation；PV is measured value；SV is desired value；KDIt is micro-
Divide gain；PV (t) S are PV (t) differential values；KIIt is storage gain；It is E (t) integrated value.
Due to a nominal operation rotating speed of pump group, to should pump group one group of rated operating pressure and flow.The present invention
Again on the basis of the control program, by pressure sensor, (inlet pressure transmitter, outlet pressure transmitter, 1# are filtered out
Mouthful pressure transmitter, 2# filtering outlets pressure transmitter) and flow sensor (1# flowmeters and 2# flowmeters) feedback signal,
Realize Isobarically Control and constant flux control.The flow chart of the control system is as shown in Figure 6.
Claims (5)
1. a kind of stepless free regulating speed diesel oil engine-centrifugal pump combination, including centrifugal pump (1), diesel engine (2), control
System (3), unsplit bedplate (4)；The diesel engine includes oil pump (22)；It is characterized in that：The diesel engine (2) is logical
Cross bracket (107) and main shaft (106) is connected with centrifugal pump (1), be placed on unsplit bedplate (4)；The control system (3) includes
Speed probe, programmable controller, electron speed regulator and throttle actuator；The throttle actuator is the machine of diesel engine
Tool speed regulator (20), also, the speed adjusting lever (201) of the mechanical governor (20) is located at rated speed position and fixed not
Dynamic, the Fuel Cut Solenoid Valve (202) of the mechanical governor (20) is proportional solenoid valve, the parking of the mechanical governor (20)
The electron speed regulator is located exactly at zero-bit when handle (205) is located at parking spot (208)；The speed probe is sent out from diesel oil
Motivation gathers tach signal and is sent into programmable controller；The programmable controller is adjusted according to tach signal output speed to be believed
Number；Rotary speed regulating signal is converted into the current signal proportional to rotary speed regulating signal and is sent into throttle by the electron speed regulator
The proportional solenoid valve of actuator.
2. stepless free regulating speed diesel oil engine-centrifugal pump combination according to claim 1, it is characterised in that：The centrifugation
Pump (1) includes housing (101), inducer (102), impeller (104), the S types water inlet bend pipe communicated with housing water inlet (100)
(108) fluid reservoir (110) that, is communicated with housing delivery port (111), it is arranged in housing and is used for UNICOM's S types water inlet bend pipe (108)
With the gas-liquid separation chamber (112) of fluid reservoir (110), the impeller (104) is arranged in gas-liquid separation chamber (112), the gas-liquid
Fluid return ports (109) are provided with side wall between separation chamber (112) and fluid reservoir (110).
3. stepless free regulating speed diesel oil engine according to claim 1 or claim 2-centrifugal pump combination, it is characterised in that：It is described can
Programmable controller is to pass through pid control algorithm output speed Regulate signal according to tach signal；The pid control algorithm expression formula
For：
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In formula：
MV is output valve；
KPIt is proportional gain；
E (t) is deviation；
PV is measured value；
SV is desired value；
KDIt is the differential gain；
PV (t) S are PV (t) differential values；
KIIt is storage gain；
It is E (t) integrated value.
4. stepless free regulating speed diesel oil engine according to claim 1 or claim 2-centrifugal pump combination, it is characterised in that：The control
System (3) processed also includes inlet pressure transmitter, outlet pressure transmitter, 1# filtering outlets pressure transmitter, 2# filtering outlets
Pressure transmitter, 1# flowmeters and 2# flowmeters；The inlet pressure transmitter and outlet pressure transmitter be separately mounted to from
The water inlet and water outlet of heart pump；The 1# filtering outlets pressure transmitter, 1# flowmeters, 2# filtering outlet pressure invertings
Device and 2# flowmeters are separately mounted to the 1# filters of diesel engine and the exit of 2# filters；The inlet pressure transmitter,
Outlet pressure transmitter, 1# filtering outlets pressure transmitter, 2# filtering outlets pressure transmitter, 1# flowmeters and 2# flowmeters are defeated
The pressure signal and flow signal gone out is respectively fed to programmable controller.
5. stepless free regulating speed diesel oil engine-centrifugal pump combination according to claim 4, it is characterised in that：It is described to compile
Range controller be according to tach signal, pressure signal and flow signal by pid control algorithm distinguish output speed Regulate signal,
Pressure adjustment signal and flow regulating signal；The pid control algorithm expression formula is：
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In formula：
MV is output valve；
KPIt is proportional gain；
E (t) is deviation；
PV is measured value；
SV is desired value；
KDIt is the differential gain；
PV (t) S are PV (t) differential values；
KIIt is storage gain；
It is E (t) integrated value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956853.7A CN105422277B (en) | 2015-12-18 | 2015-12-18 | Stepless free regulating speed diesel oil engine centrifugal pump group is closed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956853.7A CN105422277B (en) | 2015-12-18 | 2015-12-18 | Stepless free regulating speed diesel oil engine centrifugal pump group is closed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105422277A CN105422277A (en) | 2016-03-23 |
| CN105422277B true CN105422277B (en) | 2018-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510956853.7A Active CN105422277B (en) | 2015-12-18 | 2015-12-18 | Stepless free regulating speed diesel oil engine centrifugal pump group is closed |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2377751A7 (en) * | 1977-01-13 | 1978-08-11 | Sim Sa Ets | IC engine driven electric generating and water pumping set - can provide facilities independently or simultaneously using constant speed engine and clutch |
| DE4039933A1 (en) * | 1990-12-14 | 1992-06-17 | Schaeff Karl Gmbh & Co | Diesel electric drive module for tunnelling machinery - has pump driving electric motor, coupled to diesel engine by freewheel clutch |
| CN101850722A (en) * | 2010-04-07 | 2010-10-06 | 西北农林科技大学 | Hydraulic driven remote control tractor |
| CN202789109U (en) * | 2012-09-03 | 2013-03-13 | 福建闽都电机有限公司 | Multifunctional diesel engine pump package |
| CN205559063U (en) * | 2015-12-18 | 2016-09-07 | 陕西航天动力高科技股份有限公司 | Combination of stepless free speed governing diesel engine - centrifugal pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100278663A1 (en) * | 2009-05-01 | 2010-11-04 | Airtek Systems Inc. | Pump Drive System |
-
2015
- 2015-12-18 CN CN201510956853.7A patent/CN105422277B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2377751A7 (en) * | 1977-01-13 | 1978-08-11 | Sim Sa Ets | IC engine driven electric generating and water pumping set - can provide facilities independently or simultaneously using constant speed engine and clutch |
| DE4039933A1 (en) * | 1990-12-14 | 1992-06-17 | Schaeff Karl Gmbh & Co | Diesel electric drive module for tunnelling machinery - has pump driving electric motor, coupled to diesel engine by freewheel clutch |
| CN101850722A (en) * | 2010-04-07 | 2010-10-06 | 西北农林科技大学 | Hydraulic driven remote control tractor |
| CN202789109U (en) * | 2012-09-03 | 2013-03-13 | 福建闽都电机有限公司 | Multifunctional diesel engine pump package |
| CN205559063U (en) * | 2015-12-18 | 2016-09-07 | 陕西航天动力高科技股份有限公司 | Combination of stepless free speed governing diesel engine - centrifugal pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105422277A (en) | 2016-03-23 |
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Effective date of registration: 20210105 Address after: 710077 No. 78, Kam Yip Road, hi tech Zone, Shaanxi, Xi'an Patentee after: XI'AN AEROSPACE PUMPS Co.,Ltd. Address before: 710077 No. 78, Kam Yip Road, hi tech Industrial Development Zone, Shaanxi, Xi'an Patentee before: SHAANXI AEROSPACE POWER HIGH-TECH Co.,Ltd. |