CN103388588A - Built-in rotary blade angle hydraulic pressure regulator - Google Patents
Built-in rotary blade angle hydraulic pressure regulator Download PDFInfo
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- CN103388588A CN103388588A CN2013103535193A CN201310353519A CN103388588A CN 103388588 A CN103388588 A CN 103388588A CN 2013103535193 A CN2013103535193 A CN 2013103535193A CN 201310353519 A CN201310353519 A CN 201310353519A CN 103388588 A CN103388588 A CN 103388588A
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Abstract
The invention discloses a built-in rotary blade angle hydraulic pressure regulator. The hydraulic pressure regulator consists of three parts of a regulator main body which is also called as a rotating body, an encloser (i.e. a fixing body) and a control display system, wherein the regulator main body or the regulator rotating body is installed and fixed at the top end of a matching main motor shaft of a pumping unit and synchronously rotates along with the rotation of the main motor shaft, and keeps a relative static state to the rotating parts of the pumping unit and a main motor at any time; the encloser (i.e. the fixing body) is installed and fixed at the top end of a main motor shell and keeps an absolute static state to the main motor shell; the control display system comprises a PLC (programmable logic controller), a touch screen and a relay, has manual and automatic control functions as well as local and remote control systems and full-automatically regulates the angle of a water pump blade through the PLC, so that a water pump operates in an efficient area all the time; and load operation can be realized. The hydraulic pressure regulator is suitable to be used with various full-regulating axial flow pumps.
Description
Technical field
The present invention relates to a kind of adjustment of blade angle device of vertical-type axial-flow pump, is a kind of built-in rotation blade angle fluid pressure governor of regulating the pump blade angle, also with numeral, showing blade angle specifically.
Background technique
The existing matching used regulator of domestic full adjusting axial-flow pump mainly contains three kinds: a kind of is external fixed blade angle mechanically-operated controller; A kind of is built-in rotation blade angle mechanically-operated controller; Another kind is water turbine, water pump blade angle hydraulic synchronization speed regulator.There is respectively following defect in they:
One, external fixed blade angle mechanically-operated controller: 1. flog a dead horse for a long time: accelerating key components and parts is the wearing and tearing of plane bearing, causes unnecessary trouble and waste.External fixed blade angle mechanically-operated controller is fixed on the main outsides cover of electric machinery shell of the supporting use of water pump top, for guaranteeing water pump blade angle, can regulate at any time, and the regulator transmission shaft must keep coupled condition at any time with the pump blade adjustable lever.Thereby during main machine operation, transmission shaft should move up and down and push away, draw the water pump blade adjustable lever again with the main motor shaft high speed rotating, and this just must have one or more plane bearings, both bear the radial location effect of transmission shaft, born again the effect of supporting water pump blade axial adjustment power.Simultaneously, during main machine operation, even do not need regulator work, but the transmission shaft of regulator and plane bearing also will namely flog a dead horse with the main motor shaft high speed rotating, causes the plane bearing long term wear, causes the trouble and the waste that need often to change plane bearing;
2. get rid of oily phenomenon outstanding: when main motor and main water pump work, regulator transmission shaft and plane bearing will be with the main motor shaft high speed rotating, therefore transmission shaft and plane bearing can move under hot soak condition, cause even vaporization of lubricant oil liquefaction, cause regulator to get rid of oily phenomenon and give prominence to:
3. water pump is lifted axle and accelerated the plane bearing damage: the regulator gravity load is born by main motor housing, and the impact force that when axle is lifted in the water pump start, pump shaft makes progress had both easily been damaged motor base (frame) assembly or main motor runner plate, easily damaged again the regulator plane bearing; 4. can't carry out remote demonstration and distant control, more can't carry out the automation of pump blade angle and regulate;
Two, built-in rotation blade angle mechanically-operated controller: although existing built-in rotation blade angle mechanically-operated controller has solved above-mentioned four aspect problems that " external fixed blade angle mechanically-operated controller " exists preferably, but be subjected to the above large pump blade of outlet diameter 2800mm, huge adjusting power and the disproportionate impact of its regulator mechanical property, this regulator is only suitable in supporting the use on medium and small water pump, really support the use on large pump, or need to rely on the regulator of hydraulic pressure installation;
Three, water turbine, water pump blade angle hydraulic synchronization speed regulator: water turbine, water pump blade angle hydraulic synchronization speed regulator have many good qualities, solved the problem of " flogging a dead horse for a long time ", " water pump is lifted axle " and the aspects such as " distant control and demonstrations " of " external fixed blade angle mechanically-operated controller " existence, but by practical application for many years, also there are too many defects, be summed up, mainly contain following 6 aspects:
1, " angle collapses ": i.e. blade angle locking poor-performing, the immanent cause of " angle collapses ", be that the sensor contact long term wear that there be " leakage " in the regulator hydraulic equipment and be arranged on regulator outer cover top causes.1. this regulator has three leakage points: the one, let out between piston wall and cylinder wall; The 2nd, piston rod passes leaking of cylinder wall place; The 3rd, the extension rod that piston tip is surveyed displacement amount for sensor passes leaking of cylinder wall place.The blade angle that detects by displacement transducer is that the blade angle of water pump actual motion is to change with regulator piston movement of position in oil cylinder, hydraulic fluid leak, will change the position of piston in oil cylinder, thereby cause the phenomenon of " angle collapses " to occur.Though 2. the sensor contact wearing and tearing do not cause the blade angle of water pump actual motion to change, but the blade angle numerical value of controlling the display system demonstration can change along with the wearing and tearing of sensor contact, make the blade angle value of the blade angle value of demonstration and pump actual motion inconsistent, so also just caused the phenomenon of " angle collapses " to occur;
2, " get rid of oil ": the one, the small size motor of regulator, oil pump, solenoid directional control valve, unidirectional hydraulic control valve etc. all are fixed on bottom fuel tank, although with being closed of main motor shaft High Rotation Speed, fuel tank small size motor wire-feeding hold because being easy to occur chemical reaction between electric wire gum cover and oil and sealing material, produce hole and cause fuel tank to get rid of oil; The 2nd, in oil cylinder, piston rod passes extension rod that leaking of cylinder wall place and piston tip survey displacement amount for sensor and passes leaking two to leak and a little getting rid of oil of cylinder wall place;
3, easily scaling loss supplies electric slip ring:, because of the worn-out formula slip ring that is out that adopts for electric slip ring, easily because piling up dust, produce electric arc scaling loss slip ring between carbon brush and slip ring; And working time slightly long after, carbon brush is cut on the slip ring surface of contact, more easily produces electric arc and causes the slip ring scaling loss;
4, easily damage or the wear sensor contact: displacement transducer is arranged on the regulator shell that remains static, and the object of surveying is in the High Rotation Speed state for a long time with main motor shaft, cause the sensor contact long term wear, working time, slightly length needed more emat sensor feeler;
5, not attractive in appearance: displacement transducer and blade angle mechanical display devices are installed in regulator outer casing top, have a strong impact on the overall appearance effect of regulator even water pump assembly attractive in appearance;
6, can't full-automatic regulation pump blade angle: present regulator can only be according to the ammeter on pumping plant operating table or distribution board or wattmeter, reading is regulated the pump blade angle with the mouse button click manually or on computer display screen, do not carry out pump blade angle full-automatic regulation, have a strong impact on the performance of full adjusting water pump benefit.
Summary of the invention
For overcoming the existing complete supporting above-mentioned defect with regulator of water pump of regulating, the invention provides a kind of built-in rotation blade angle fluid pressure governor, to improve its usability, and raising axial-flow pump and corresponding supporting utilization efficiency with motor, simultaneously, the clear water pump blade angle situation of change that shows, make easy to operation and energy full-automatic regulation pump blade angle.
for solving its technical problem, the technical solution used in the present invention is: the built-in rotation blade angle fluid pressure governor of designing, comprise: fitting seat, supporting base, drag link sleeve or title transmission shaft, lower fagging, piston rod, strut, lower encioser, upper encloser, hydraulic station, electric support or title inner can, the suspended wall clamp, the card key dish, piston, oil cylinder, fuel tank, bearing, upper fagging, for electric slip ring, displacement transducer or title angle transducer, air-break switch, unidirectional contactor, throw over switch, programmable controller PLC and read out instrument etc., its feature is:
1. described fluid pressure governor is by regulator body or claim solid of rotation, case to be fixed body and to control the display system three parts and form; Wherein: described regulator body or regulator solid of rotation are comprised of fitting seat, supporting base, drag link sleeve, lower fagging, strut, piston rod, piston, oil cylinder, fuel tank, hydraulic station, upper fagging, bearing, cantilever clamp, displacement transducer, confession electric slip ring and card key dish, it is fixed on the supporting top with main motor shaft of water pump assembly, the synchronous rotary with the rotation of main motor shaft, be in relative static conditions at any time with the rotating part of water pump assembly and main motor;
Wherein said case is that fixed body is comprised of lower encioser, upper encloser and electric support three parts: lower encioser is fixed on main motor housing top, and it and main motor housing are in the absolute rest state; Upper encloser and electric support all are fixed on lower encioser; Be provided with the blade angle mechanical display on the electric support outer wall, it comprises pointer and blade angle dial, and the upper encloser side is provided with viewing window; The outer casing that regulator remains static and be between the hydraulic station of rotation status and provide power supply by one for electric slip ring, be that an electric support is equipped with in the lower encioser upper end, stationary part for electric slip ring is connected with electric support by the cantilever clamp, after the energising of slip ring stationary part, its rotating part is powered to hydraulic station;
Wherein said regulator is controlled display system and is comprised of PLC, touch screen, relay, fus, switch power module, circuit breaker, knob; Can show current blade angle, Main motor current, time, room temperature parameter on touch screen, control system possesses manual control and automatically controls two kinds of functions, and the menu that two kinds of control modes are shielded by point touching is selected; Manually control to be divided into and control on the spot and two kinds of control modes of telecontrol; Control on the spot and telecontrol is switched by the two position knobs of controlling on the display system case: rotate that the angle adjustment knob of controlling on the spot on showing box can be regulated, the control pump blade angle; Telecontrol needs to be connected with the microcomputer of pumping plant, can show blade angle and pass through process control machine mouse manually-operable adjusting vane angle on microcomputer; Automatically controlling is to change automatic adjusting vane angle by Main motor current, controls on showing box and is provided with the emergency shutdown button, presses this button regulator as emergency and namely quits work; Be provided with programmable controller PLC in control box or on the operating table of pumping plant central control room, the electric current or the electric power that collect when run unit is arranged on waterlevel data information that the level sensor in inside and outside river collects maybe with main motor operation, data information is input in PLC after converting, programming, thereby make water pump blade angle carry out full-automatic regulation, make water pump constantly be in the operation of efficient district; Hydraulic station on regulator and displacement transducer are connected to respectively electrical equipment automatic control system and the digital display system on distribution box or pumping plant central control room operating table, make the pump blade angle carry out remote the demonstration and distant control, and can operate by on-load;
2. the topology layout pattern of described water pump assembly is that top is regulator, middle part is main motor, bottom is main water pump, main motor upper end is flat-top, be convenient to arrange regulator, water pump spindle and main motor shaft are hollow shaft, establish a blade adjustments bar in hollow shaft, and indoor connecting rod, connecting rod base and the blade rocking arm of adjustable lever lower end and water pump vane is connected; Upper end passes water pump spindle and main motor shaft extends upwardly in the regulator drag link sleeve, and drag link sleeve and piston rod and lower fagging link;
3. the external part of described piston rod is provided with a triangular plate, namely plays fagging; Be provided with another triangular plate within the fuel tank upper end exceeds the space of hydraulic station certain altitude, namely go up fagging, be connected with strut between two faggings; When piston rod moved up and down, strut and upper and lower fagging synchronously and then moved up and down; Like this, the displacement transducer of being convenient to be arranged on solid of rotation is surveyed the displacement amount that the pump blade angle changes; Simultaneously, be convenient to installation on solid of rotation and supply electric slip ring to sensor and solenoid directional control valve and small size motor power supply, and the angular rate signal that sensor produces is passed to control, display system by what install on upper fagging for electric slip ring;
4. described level sensor is arranged on the regulator solid of rotation, can make the sensor feeler and be detected object and be in all the time relative static conditions, thereby avoided the sensor contact wearing and tearing, also avoided the phenomenon that read out instrument upper blade angle freely changes to occur; Displacement transducer is arranged on solid of rotation, what can drive by piston rod makes the variable quantity of the object direct detection that moves up and down pump blade angle simultaneously with it, do not need to stretch out oil cylinder at another termination extension rod of piston rod and survey displacement amount for sensor, namely close this leakage point; Like this, just reduced one with respect to former " water turbine, water pump blade angle hydraulic synchronization speed regulator " and leaked a little, both " angle collapses " reduced by 33% leakage rate; Again " getting rid of oil " phenomenon has been reduced by " getting rid of oil " amount of 50%;
5. described standing part and rotating part for electric slip ring all is arranged on solid of rotation, from current technology in the world easy to use is most advanced, style is up-to-date in topology layout sealed type for electric slip ring, this slip ring produces without electric arc, no marking, therefore without scaling loss, for " water turbine, water pump blade angle hydraulic synchronization speed regulator ", can extend decades of times working life;
6. be provided with on described solid of rotation by piston rod and drive, synchronize with piston rod and make the upper and lower fagging that moves up and down, be used for displacement transducer is displaced to solid of rotation from regulator outer casing top, also be convenient to the blade angle mechanical display is displaced to the outer casing side from regulator outer casing top: at upper fagging or strut, the mechanical display pointer is installed, at electric support or the outer wall of simply making inner can install to show dial or the dial of blade angle, open viewing window on the outer casing wall; Like this, remove the ugly sense of regulator outer casing top installation position displacement sensor and blade angle mechanical display, strengthened the overall appearance effect of separate unit regulator and water pump in pump station unit;
7. also be provided with a hydraulic station on described solid of rotation, this hydraulic station is controlled its small motor by electrical apparatus control system and is rotated, and connect the oil transportation path of three position four-way electromagnetic valve control oil pump pipeline road by electrical apparatus control system, make hydraulic station respectively to cylinder upper cavity oil or cavity of resorption fuel feeding, allow piston and piston rod do upper and lower motion, drive upper and lower fagging, strut and drag link sleeve and water pump blade adjustable lever and do and move up and down, thereby drive water pump blade, rotate and drive displacement transducer and survey water pump blade and lay angle;
8. be provided with respectively one, small size motor, oil pump, relief valve, one-way valve, three position four-way electromagnetic valve, hydraulic lock, load balance valve on the hydraulic station of described solid of rotation; Small size motor rotates and drives the oil pump rotation; Oil pump is to the system fuel feeding, and when oil pressure surpassed setting value, hydraulic oil flowed out through relief valve; The left and right end of three position four-way electromagnetic valve can not be simultaneously electric, but dead electricity simultaneously;
A, when small size motor rotates and the three position four-way electromagnetic valve right-hand member obtains when electric, pressure oil flows to B through one-way valve by P, then through hydraulic lock, load balance valve, flows to the oil cylinder cavity of resorption, pushing piston moves upward, and the oil that makes cylinder upper cavity oil is flowed to O, flow to fuel tank again by A again through hydraulic lock; Piston, piston rod move upward at this moment, and one side drives drag link sleeve and the water pump blade adjustable lever moves up, thereby drive water pump blade, to postive direction, rotate; Drive on the other hand lower fagging, strut and upper fagging and move up, amount of movement is passed to displacement transducer, displacement transducer passes to the electrical equipment control display system with signal after changing displacement amount into angle variable quantity;
B, when small motor quits work and three position four-way electromagnetic valve two ends simultaneously during dead electricity, P, A in three position four-way electromagnetic valve, B, O point are all obstructed, the upper and lower chamber of oil cylinder all flows into without pressure oil, this moment the oil cylinder cavity of resorption oil pressure, because the downward hydraulic action of water pump adjustable lever makes piston rod that load be arranged, the mineralization pressure balance, and load balance valve and hydraulic lock dual fail-safe, prevent that pressure oil from leaking, and makes piston keep motionless;
C, when small size motor rotates and the three position four-way electromagnetic valve left end obtains when electric, hydraulic oil flows to A through one-way valve by P, flow to cylinder upper cavity oil through hydraulic lock again, open simultaneously the load balance valve, pushing piston moves downward, and the oil of oil cylinder cavity of resorption flows to O through load balance valve, hydraulic lock by B and flows to fuel tank.Piston, piston rod move downward at this moment, and one side drives drag link sleeve and the water pump blade adjustable lever moves down, thereby drive water pump blade, to negative direction, rotate; Drive on the other hand lower fagging, strut and upper fagging and move down, amount of movement is passed to displacement transducer, displacement transducer passes to the electrical equipment control display system with signal after changing displacement amount into angle variable quantity;
9. the electrical equipment control display system of described regulator directly accesses the pumping plant central control room, by central control room electric closet or operation bench, controls, shows the pump blade angle; Or wear and control showing box and be directly installed near the other or wall of regulator outer casing; Control display system and possess manual control and automatically control two kinds of functions, the menu that two kinds of control modes are shielded by point touching is selected; Manually control is divided into again control and two kinds of control modes of telecontrol on the spot; Control and telecontrol are switched by the two position knobs of controlling on the display system case on the spot; Control on showing box and also be provided with the emergency shutdown button, press this button regulator as emergency and namely quit work;
10. in the regulator electrical apparatus control system, by touch screen display, select automatically to regulate the mode tuning water pump blade angle; Or according to outer stream stage situation of change, automatically change and control the blade angle degree, unit is remained under operating mode near rated load move, thereby improve unit operation efficiency; Or set in advance " start ", " shutdown " blade angle, make " start ", " shutdown " more convenient operation, simpler; Set in advance " start time delay " time, enter again automatic adjusting vane angle state after the unit start operates steadily; Directly operation on 5.7 inches color touch screens that are equipped with, easy to operation; Three grades of warning devices are set, guarantee unit safety operation; When control apparatus breaks down, the concrete faulty line of system automatic-prompting or fault components and parts, accident treatment is easy should go; , by the R485 communication interface, can dock with pumping plant Automatic Centering Control, and can click the above-mentioned all functions of operation by the process control machine mouse.
Compared with prior art, the present invention has following characteristics and progress:
1. cancelled in traditional mechanically-operated controller plane bearing this hold flimsy component most;
2. greatly shortened the rotation time of regulator rotatable parts, reduced mechanical wear: the ratio of work (rotation) time of the rotation time of regulator rotatable parts originally and water pump and main motor is 1:1, and the operating time of regulator is 1:1000-3000 with the ratio of the operating time of water pump and main motor now.Reason is water pump, the operation of main motor one day 24 hours, and general only need of pump blade angle regulated 2-3 time, and regulate the primary vane angle demodulator, only needs work 20-30 second; If outer stream stage is more stable, keep 2 days when constant, water pump and main motor have moved 48 hours, even and regulator is regulated blade angle 2 times, its ratio is only also: 30 seconds * 2 ÷ 48 * 60 minutes=1/2880;
3. with on Present Domestic market use at most, technology state-of-the-art " water turbine, water pump blade angle hydraulic synchronization speed regulator " compares, and reduced by " a leakages " point, " leakage " that be equivalent to reduce 33% left and right measures." leakage " is the common fault of hydraulic equipment, but this regulator has three leakage points, namely lets out point, two in one and leaks a little: the one, let out between piston wall and cylinder wall; The 2nd, piston rod passes leaking of cylinder wall place; The 3rd, the extension rod that piston top is surveyed amount of piston displacement for the displacement transducer that is arranged on central position, regulator outer casing top passes leaking of cylinder wall place.Hydraulic fluid leak, will freely change the position of piston in oil cylinder, thereby cause the phenomenon of " angle collapses " to occur." built-in rotary type hydraulic regulator " is arranged on displacement transducer on the regulator solid of rotation, to survey piston tip extension rod displacement amount and change detection piston rod displacement amount into, make it the leakage point that closure piston top extension rod passes the cylinder wall place, be equivalent to reduce the leakage rate of 33% left and right;
4. compare with " water turbine, water pump blade angle hydraulic synchronization speed regulator ", reduced by two " getting rid of oil " points, be equivalent to reduce " getting rid of oil " amount of 70% left and right; This regulator has three " getting rid of oil " points: the one, because of the hydraulic station of regulator, comprise small size motor, oil pump, solenoid directional control valve, Pilot operated check valve and hydraulic lock, be fixed on the fuel tank bottom, therefore be easy to occur chemical reaction, produce hole and cause fuel tank to get rid of oil because of oil and electric wire gum cover and sealing material with the small size motor wire-feeding hold in the fuel tank of main motor shaft High Rotation Speed, this is also the oil drop that gets rid of of maximum together; The 2nd, " getting rid of oil " that the extension rod that piston top supplies displacement transducer to survey displacement amount passes the cylinder wall place; The 3rd, piston rod passes " the getting rid of oil " at cylinder wall place; " get rid of oil " and be the thing of inviting people's " headache " in the pumping station operation management most, what got rid of everywhere on unit, machine room ground is oil, not only unhygienic, but also the people is tumbled; " built-in rotary type hydraulic regulator is arranged on displacement transducer on the regulator solid of rotation, closed the piston tip extension rod and passed the oil drop that gets rid of at cylinder wall place; Simultaneously, be upper and lower two-layer with the tank design on the regulator solid of rotation, lower floor's sealing charge of oil; We opens the layout hydraulic station upper strata, has avoided hydraulic station to be arranged on the fuel tank bottom and " getting rid of oil " of being produced by wire-feeding hold, thereby regulator only has been left " getting rid of an oil " point, has been equivalent to reduce " getting rid of oil " amount of 70% left and right;
5. compare with " water turbine, water pump blade angle hydraulic synchronization speed regulator ", avoided the sensor contact wearing and tearing: this regulator displacement transducer is arranged on regulator outer casing top, and it is the same with main motor housing, whenever all is in the absolute rest state; And by its object (piston top extension rod) of surveying displacement amount synchronous rotary together with main motor shaft all the time, thereby as long as main motor shaft rotates, sensor contact will cause wearing and tearing; " built-in rotary type hydraulic regulator " is arranged on displacement transducer on solid of rotation, and the object that allows sensor and be detected, do synchronous rotary, makes it be in all the time relative static conditions, avoided the wearing and tearing of sensor contact; The sensor contact long term wear, not only because of needs often more the emat sensor feeler bring a lot of troubles for the pumping station operation management work, and during contact abrasion, also can constantly change unawares the blade angle numerical value that display system shows, cause the phenomenon of " angle collapses " to occur;
6. compare with " water turbine, water pump blade angle hydraulic synchronization speed regulator ", avoided for the electric slip ring scaling loss: this structural type of this regulator, can only adopt traditional worn-out formula of opening to power to small size motor and the solenoid directional control valve of hydraulic station for electric slip ring, this carbon brush of opening worn-out formula confession electric slip ring is arranged on the inwall of regulator outer casing, slip ring is arranged on solid of rotation, is easy between carbon brush and slip ring burn out slip ring because piling up dust generation electric arc; And working time slightly long after, carbon brush is cut on the slip ring surface of contact, more easily produces electric arc and causes the slip ring scaling loss; " built-in rotary type hydraulic regulator " will all be arranged on solid of rotation for standing part and the rotating part of electric slip ring, be convenient to adopt the sealed mode that current technology in the world is most advanced, style is up-to-date to supply electric slip ring from topology layout, this slip ring produces without electric arc, no marking, thereby without scaling loss; And, also it can be designed to 8 cores, the multicore power transmission sliding ring of 12 cores even, be convenient to a plurality of consumers power supplies with being installed on solid of rotation; The change in displacement signal of also being convenient to that simultaneously displacement transducer is detected passes to the outer electrical equipment control display system of solid of rotation;
7. compare with " water turbine, water pump blade angle hydraulic synchronization speed regulator ", strengthened the overall appearance effect that regulator is regulated water pump assembly even entirely.The displacement transducer of this regulator and blade angle mechanical display are all exposed on regulator outer casing top, have a strong impact on the overall appearance effect of regulator even water pump assembly attractive in appearance; " built-in rotary type hydraulic regulator " is arranged on displacement transducer on the solid of rotation of outer casing the inside; The blade angle mechanical display is arranged on the electric support of outer casing the inside of regulator one side, by the viewing window that arranges, checks that mechanical display shows the real-time blade angle of pump on outer casing, make whole regulator look not only attractive in appearance, but also generous;
8. alleviated the contradiction that axle is lifted in the water pump start: the main body of this regulator is fixed on main motor-hollow axle, its weight is born by main motor shaft fully, in certain hour after specific range of lift, particularly start, the run up floating force (upwards lifting the impact force of axle) that produces and the gravity that regulator body is pressed on main motor shaft of water pump reaches in a basic balance, has greatly alleviated the contradiction that axle is lifted in the water pump start;
9. can at a distance and can know and show pump blade angle situation of change;
10. can full-automatic regulation pump blade angle, but and on-load operation.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments:
Fig. 1 is structural representation plan view of the present invention;
After Fig. 2 was structural demolition outer casing of the present invention, the signal left view was removed outer casing;
Fig. 3 is hydraulic schematic diagram of the present invention;
Fig. 4 is electrical schematic of the present invention.
number in the figure explanation: in Fig. 1: 1. outer-hexagonal bolt, 2. fitting seat, 3. supporting base, 4. outer-hexagonal bolt, 5. socket head screw, 6. drag link sleeve, 7. play fagging, 8. piston rod, 9. strut, 10. seal ring gland, 11.V RunddichtringO, 12. locking nut, 13. lower encioser, 14. upper encloser, 15. hydraulic station, 16. electric support, 17. hollow shaft, 18. upper suspending plage, 19. pin, 20. support, 21. socket head screw, 22. card key dish, 23. socket head screw, 24. outer-hexagonal bolt, 25. seal ring, 26. piston, 27.Yx RunddichtringO, 28. socket head screw, 29. oil cylinder, 30. fuel tank, 31. suspension ring, 32. bearing, 33. bearing cap, 34. upper fagging, 35. insulating bush, 36. for electric slip ring, 37. Cock screw.
In Fig. 2: 38. joints, 39. plugs, 40. oil pipes, 41. elbow connections, 42. oil pipes, 43. suspension ring, 44. displacement sensor brackets, 45. displacement transducers, 46. pointers.
In Fig. 3: 47 small size motors, 48 oil pumps, 49 relief valves, 50 one-way valves, 51 3-position 4-way solenoid directional control valves, 52 hydraulic lock, 53 load balance valves.
In Fig. 4: AL, AH are relay, KMF, and KMR is that A.C. contactor, SA are that three-position switch, XK are that read out instrument, FU are fus, HG, and HR1, HR2 are that signaling lamp, QF are air-break switch.
Embodiment
With reference to accompanying drawing: carry out in factory:
A, dress piston rod 8 on 3 supporting bases, dress V-shaped seal ring 11, seal ring gland 10, compress with socket head screw 23.Load fagging 7, drag link sleeve 6, with outer-hexagonal bolt 4, compress, card key dish 22, compress with socket head screw 21, and dress fitting seat 2 compresses with outer-hexagonal bolt 4;
B, on piston 26, fill two Yx RunddichtringOs 27 back-to-back, dress seal ring 25, and it is contained on piston rod 8, dress locking nut 12, compress with socket head screw 28; Charge of oil cylinder 29, compress with outer-hexagonal bolt 24, fills plug 39, connects ice 38, elbow connection 41;
C, at experiment centre, this device is horizontal, connect oil pipe, the two ends, up and down, oil-feed is two to three times repeatedly, makes the upper and lower chamber of oil cylinder emptying, and pressure testing on request, blocks oil pipe;
D, charge of oil case 30, dress suspension ring 43, compress with outer-hexagonal bolt 4, fills strut 9, with socket head screw 5, connects, and refuels in fuel tank.Dress displacement sensor bracket 44, displacement transducer 45, dress hydraulic station 15, tied oil pipe 40 and oil pipe 42 on hydraulic station 15;
E, load onto fagging 34, with socket head screw 5, connect, and fills hollow shaft 17, bearing cap 33, bearing 32, upper suspending plage 18, pointer 46, pin 19, insulating bush 35, supplies electric slip ring 36, connects slip ring output terminal and motor power-supply wire, and is fastening with Cock screw 37;
F, dress electric support 16, support 20, suspension ring 31, upper encloser 14 on lower encioser 13;
G, no load running in factory, oil-proof, operation freely, detects on request up and down, can dispatch from the factory after qualified;
Carry out in pumping plant:
H, pull down outer-hexagonal bolt 4, fitting seat 2, drag link sleeve 6, pulls down upper encloser 14;
I, dress fitting seat 2 on main motor shaft, compress with outer-hexagonal bolt 1, level of corrections, dress drag link sleeve 6 on pull bar; This device is contained on fitting seat 2, compresses supporting base 3 and piston rod 8 with outer-hexagonal bolt 4 respectively;
J, section's cover that dress E completes;
K, the test run of this device, upper or lower oil-feed, making water pump blade angle is 0, the adjusted position displacement sensor makes display instrument be shown as 0;
L, install and connect air-break switch QF, single-phase contactor KMF, KMR1, KMR2 in control system (control box or central control desk), tutorial light HG, HR2, HR3, capacitor C, fus FU, transfer switch SA and read out instrument XK, comprise and connect internal relay XK
1, XK
2
M, until all devices and component install and trial run and run steadily after, upper encloser 38 closes;
This regulator working procedure is as follows:, referring to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4, switch on power, tutorial light HG is bright, twisting SA throw over switch is to the position that makes progress, and tutorial light HR1 is bright, and A.C. contactor KMF closes, small motor rotates, and small size motor rotates and drives the oil pump rotation; Oil pump is to the system fuel feeding, and when oil pressure surpassed setting value, hydraulic oil flowed out through relief valve.The left and right end of three position four-way electromagnetic valve can not be simultaneously electric, dead electricity simultaneously;
A, twisting SA throw over switch is to the position that makes progress, tutorial light HR1 is bright, A.C. contactor KMR1 closes, the three position four-way electromagnetic valve right-hand member obtains electric, and pressure oil flows to B through one-way valve by P, then through hydraulic lock, load balance valve, flows to the oil cylinder cavity of resorption, pushing piston moves upward, and the oil that makes cylinder upper cavity oil is flowed to O, flow to fuel tank again by A again through hydraulic lock.Piston, piston rod move upward at this moment, drive on the one hand drag link sleeve, and water pump blade regulate and draw or push rod moves up, rotate to postive direction thereby drive water pump blade, drive on the one hand lower fagging, strut and upper fagging and move up, amount of movement is passed to the displacement sensor instrument.Displacement sensor instrument 45 passes to read out instrument with signal, and Displaying Meter shows instant blade angle with the variation of displacement amount; When blade angle reach+8 degree are when (setting value), read out instrument internal relay AL disconnects, tutorial light HR1 extinguishes;
B, twisting SA throw over switch is to neutral position, and tutorial light HR1, HR2 do not work, A.C. contactor KMR1, KMR2 disconnect simultaneously, and the three position four-way electromagnetic valve two ends are dead electricity simultaneously, and in three position four-way electromagnetic valve, P, A, B, O are obstructed, therefore, small motor also quits work, without pressure oil.The oil of the cavity of resorption of oil cylinder, have load because water pump water moment makes pull bar at this moment, mineralization pressure, and load balance valve and hydraulic lock dual fail-safe, prevent that pressure oil from leaking.Make piston keep motionless;
C, twisting SA throw over switch are extremely to upper/lower positions, tutorial light HR2 is bright, A.C. contactor KMR2 closes, the three position four-way electromagnetic valve left end obtains electric, hydraulic oil flows to A through one-way valve by P, then through hydraulic lock, flows to cylinder upper cavity oil, opens simultaneously the load balance valve, pushing piston moves downward, and the oil of oil cylinder cavity of resorption flows to O through load balance valve, hydraulic lock by B and flows to fuel tank.Piston, piston rod move downward at this moment, drive on the one hand drag link sleeve, and water pump blade regulate and draw or push rod moves down, rotate to negative direction thereby drive water pump blade, drive on the one hand lower fagging, strut and upper fagging and move down, amount of movement is passed to displacement transducer.Displacement transducer 45 passes to read out instrument with signal, and Displaying Meter shows instant blade angle with the variation of displacement amount; When blade angle reached-12 degree (setting value), read out instrument internal relay AH disconnected, and tutorial light HR2 extinguishes, and the three position four-way electromagnetic valve two ends are dead electricity simultaneously, and whole adjustment stroke finishes.
Claims (10)
1. built-in rotation blade angle fluid pressure governor, comprise: fitting seat, supporting base, drag link sleeve or title transmission shaft, lower fagging, piston rod, strut, lower encioser, upper encloser, hydraulic station, electric support or title inner can, suspended wall clamp, card key dish, piston, oil cylinder, fuel tank, bearing, upper fagging, confession electric slip ring, displacement transducer or title angle transducer, air-break switch, unidirectional contactor, throw over switch, programmable controller PLC and read out instrument is characterized in that:
Described fluid pressure governor is by regulator body or claim that solid of rotation, case are that fixed body and control display system three parts form; Wherein: described regulator body or regulator solid of rotation are comprised of fitting seat, supporting base, drag link sleeve, lower fagging, strut, piston rod, piston, oil cylinder, fuel tank, hydraulic station, upper fagging, bearing, cantilever clamp, displacement transducer, confession electric slip ring and card key dish, it is fixed on the supporting top with main motor shaft of water pump assembly, the synchronous rotary with the rotation of main motor shaft, be in relative static conditions at any time with the rotating part of main water pump and main motor; Described case is that fixed body is comprised of lower encioser, upper encloser and electric support three parts: lower encioser is fixed on main motor housing top, and it and main motor housing are in the absolute rest state; Upper encloser and electric support all are fixed on lower encioser; Be provided with the blade angle mechanical display on the electric support outer wall, it comprises pointer and blade angle dial, and the upper encloser side is provided with viewing window; The outer casing that regulator remains static and be between the hydraulic station of rotation status and provide power supply by one for electric slip ring, be that an electric support is equipped with in the lower encioser upper end, the stationary part for electric slip ring of installing on solid of rotation is connected with electric support by the cantilever clamp, after the stationary part energising, its rotating part is powered to hydraulic station; Described regulator is controlled display system and is comprised of PLC, touch screen, relay, fus, switch power module, circuit breaker, knob; Can show current blade angle, Main motor current, time, room temperature parameter on touch screen, control system possesses manual control and automatically controls two kinds of functions, and the menu that two kinds of control modes are shielded by point touching is selected; Manually control to be divided into and control on the spot and two kinds of control modes of telecontrol; Control on the spot and telecontrol is switched by the two position knobs of controlling on the display system case: rotate that the angle adjustment knob of controlling on the spot on showing box can be regulated, the control pump blade angle; Telecontrol needs to be connected with the microcomputer of pumping plant, can show blade angle and pass through process control machine mouse manually-operable adjusting vane angle on microcomputer; Automatically controlling is to change automatic adjusting vane angle by Main motor current, controls on showing box and is provided with the emergency shutdown button, presses this button regulator as emergency and namely quits work; Be provided with programmable controller PLC in control box or on the operating table of pumping plant central control room, the electric current or the electric power that collect when run unit is arranged on waterlevel data information that the level sensor in inside and outside river collects maybe with main motor operation, data information is input in PLC after converting, programming, thereby make water pump blade angle carry out full-automatic regulation, make water pump constantly be in the operation of efficient district; Hydraulic station on regulator and displacement transducer are connected to respectively electrical equipment automatic control system and the digital display system on distribution box or pumping plant central control room operating table, make the pump blade angle carry out remote the demonstration and distant control, and can the on-load operation.
2. built-in rotation blade angle fluid pressure governor according to claim 1, it is characterized in that: the topology layout pattern of described water pump assembly is that top is regulator, middle part is main motor, bottom is main water pump, main motor upper end is flat-top, is convenient to arrange regulator, and water pump spindle and main motor shaft are hollow shaft, establish a blade adjustments bar in hollow shaft, indoor connecting rod, connecting rod base and the blade rocking arm of adjustable lever lower end and water pump vane is connected; Upper end passes water pump spindle and main motor shaft extends upwardly in the regulator drag link sleeve, and drag link sleeve and piston rod and lower fagging link.
3. built-in rotation blade angle fluid pressure governor according to claim 1, it is characterized in that: the external part of described piston rod is provided with a triangular plate, namely plays fagging; Be provided with another triangular plate within the fuel tank upper end exceeds the space of hydraulic station certain altitude, namely go up fagging, be connected with strut between two faggings; When piston rod moved up and down, strut and upper and lower fagging synchronously and then moved up and down; Like this, the displacement transducer of being convenient to be arranged on solid of rotation is surveyed the displacement amount that the pump blade angle changes; Simultaneously, be convenient to installation on solid of rotation and supply electric slip ring to sensor and solenoid directional control valve and small size motor power supply, and the angular rate signal that sensor produces is passed to control, display system by what install on upper fagging for electric slip ring.
4. built-in rotation blade angle fluid pressure governor according to claim 1, it is characterized in that: described level sensor is arranged on the regulator solid of rotation, can make the sensor feeler and be detected object and be in all the time relative static conditions, thereby avoided the sensor contact wearing and tearing, also avoided the phenomenon that read out instrument upper blade angle freely changes to occur; Displacement transducer is arranged on solid of rotation, what can drive by piston rod makes the variable quantity of the object direct detection that moves up and down pump blade angle simultaneously with it, do not need to stretch out oil cylinder at another termination extension rod of piston rod and survey displacement amount for sensor, namely close this leakage point; Like this, just reduced one with respect to former " water turbine, water pump blade angle hydraulic synchronization speed regulator " and leaked a little, both " angle collapses " reduced by 33% leakage rate; Again " getting rid of oil " phenomenon has been reduced by " getting rid of oil " amount of 50%.
5. built-in rotation blade angle fluid pressure governor according to claim 1, it is characterized in that: described standing part and rotating part for electric slip ring all is arranged on solid of rotation, from current technology in the world easy to use is most advanced, style is up-to-date in topology layout sealed type for electric slip ring, this slip ring produces without electric arc, no marking, therefore without scaling loss, for " water turbine, water pump blade angle hydraulic synchronization speed regulator ", can extend decades of times working life.
6. built-in rotation blade angle fluid pressure governor according to claim 1, it is characterized in that: be provided with by piston rod and drive on described solid of rotation, synchronize and do with piston rod, lower movement upper, lower fagging, be used for displacement transducer is displaced to solid of rotation from regulator outer casing top, also be convenient to the blade angle mechanical display is displaced to the outer casing side from regulator outer casing top: at upper fagging or strut, the mechanical display pointer is installed, at electric support or simply make on the outer wall of inner can dial or the dial that shows blade angle is installed, open viewing window on the outer casing wall, be used for removing the ugly sense of regulator outer casing top installation position displacement sensor and blade angle mechanical display, strengthen the overall appearance effect of separate unit regulator and water pump in pump station unit.
7. built-in rotation blade angle fluid pressure governor according to claim 1, it is characterized in that: also be provided with a hydraulic station on described solid of rotation, this hydraulic station is controlled its small motor by electrical apparatus control system and is rotated, and connect the oil transportation path of three position four-way electromagnetic valve control oil pump pipeline road by electrical apparatus control system, make hydraulic station respectively to cylinder upper cavity oil or cavity of resorption fuel feeding, allow piston and piston rod do, lower motion, in drive, lower fagging, strut and drag link sleeve and water pump blade adjustable lever are done, lower movement, water pump blade rotates and drive displacement transducer detection water pump blade is laid angle thereby drive.
8. built-in rotation blade angle fluid pressure governor according to claim 1, is characterized in that: be provided with respectively one, small size motor, oil pump, relief valve, one-way valve, three position four-way electromagnetic valve, hydraulic lock, load balance valve on the hydraulic station of described solid of rotation; Small size motor rotates and drives the oil pump rotation; Oil pump is to the system fuel feeding, and when oil pressure surpassed setting value, hydraulic oil flowed out through relief valve; The left and right end of three position four-way electromagnetic valve can not be simultaneously electric, but dead electricity simultaneously;
A, when small size motor rotates and the three position four-way electromagnetic valve right-hand member obtains when electric, pressure oil flows to B through one-way valve by P, then through hydraulic lock, load balance valve, flows to the oil cylinder cavity of resorption, pushing piston moves upward, and the oil that makes cylinder upper cavity oil is flowed to O, flow to fuel tank again by A again through hydraulic lock; Piston, piston rod move upward at this moment, and one side drives drag link sleeve and the water pump blade adjustable lever moves up, thereby drive water pump blade, to postive direction, rotate; Drive on the other hand lower fagging, strut and upper fagging and move up, amount of movement is passed to displacement transducer, displacement transducer passes to the electrical equipment control display system with signal after changing displacement amount into angle variable quantity;
B, when small motor quits work and three position four-way electromagnetic valve two ends simultaneously during dead electricity, P, A in three position four-way electromagnetic valve, B, O point are all obstructed, the upper and lower chamber of oil cylinder all flows into without pressure oil, this moment the oil cylinder cavity of resorption oil pressure, because the downward hydraulic action of water pump adjustable lever makes piston rod that load be arranged, the mineralization pressure balance, and load balance valve and hydraulic lock dual fail-safe, prevent that pressure oil from leaking, and makes piston keep motionless;
C, when small size motor rotates and the three position four-way electromagnetic valve left end obtains when electric, hydraulic oil flows to A through one-way valve by P, flow to cylinder upper cavity oil through hydraulic lock again, open simultaneously the load balance valve, pushing piston moves downward, and the oil of oil cylinder cavity of resorption flows to O through load balance valve, hydraulic lock by B and flows to fuel tank; Piston, piston rod move downward at this moment, and one side drives drag link sleeve and the water pump blade adjustable lever moves down, thereby drive water pump blade, to negative direction, rotate; Drive on the other hand lower fagging, strut and upper fagging and move down, amount of movement is passed to displacement transducer, displacement transducer passes to the electrical equipment control display system with signal after changing displacement amount into angle variable quantity.
9. built-in rotation blade angle fluid pressure governor according to claim 1, it is characterized in that: the electrical equipment control display system of described regulator directly accesses the pumping plant central control room, by central control room electric closet or operation bench, controls, shows the pump blade angle; Or wear and control showing box and be directly installed near the other or wall of regulator outer casing; Control display system and possess manual control and automatically control two kinds of functions, the menu that two kinds of control modes are shielded by point touching is selected; Manually control is divided into again control and two kinds of control modes of telecontrol on the spot; Control and telecontrol are switched by the two position knobs of controlling on the display system case on the spot; Control on showing box and also be provided with the emergency shutdown button, press this button regulator as emergency and namely quit work.
10. built-in rotation blade angle fluid pressure governor according to claim 1, is characterized in that: in the regulator electrical apparatus control system, be provided with touch screen display, by this touch screen display, select automatically to regulate the mode tuning water pump blade angle; Or according to outer stream stage situation of change, automatically change and control the blade angle degree, unit is remained under operating mode near rated load move, thereby improve unit operation efficiency; Or set in advance " start ", " shutdown " blade angle, make " start ", " shutdown " more convenient operation, simpler; Set in advance " start time delay " time, enter again automatic adjusting vane angle state after the unit start operates steadily; Directly operation on 5.7 inches color touch screens that are equipped with, easy to operation; Three grades of warning devices are set, guarantee unit safety operation; When control apparatus breaks down, the concrete faulty line of system automatic-prompting or fault components and parts, accident treatment is easy should go; , by the R485 communication interface, can dock with pumping plant Automatic Centering Control, and can click operation by the process control machine mouse.
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| CN105179314A (en) * | 2015-08-31 | 2015-12-23 | 河南科技大学 | Novel adjusting system for stationary blades of axial flow fan |
| CN107165835A (en) * | 2017-06-20 | 2017-09-15 | 广东河海泵业机械有限公司 | Mechanical water pump adjustment of blade angle device with compact layout displacement sensing instrument |
| CN107559232A (en) * | 2017-08-25 | 2018-01-09 | 扬州大学 | A kind of full adjusting means of middle-size and small-size water pump high-precision blade and its design method |
| CN107740775A (en) * | 2017-11-27 | 2018-02-27 | 湖北拓宇水电科技有限公司 | A kind of middle Inner fuel feeding hydraulic pump blade angle synchronous governor |
| CN108286526A (en) * | 2018-03-16 | 2018-07-17 | 戴宏岸 | No leakage rotation blade angle hydraulic pressure regulator |
| CN110513231A (en) * | 2019-09-09 | 2019-11-29 | 江西理工大学 | A kind of outer oil cylinder control structure of novel Kaplan |
| CN113514284A (en) * | 2021-06-25 | 2021-10-19 | 杨晨 | Deep water intake device based on peristaltic pump |
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| CN113514284A (en) * | 2021-06-25 | 2021-10-19 | 杨晨 | Deep water intake device based on peristaltic pump |
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Application publication date: 20131113 |