A kind of compressor tolerance regulates hydraulic actuator
Technical field
The present invention relates to that a kind of height is integrated, intelligent stepless adjustment, highi degree of accuracy, high dynamic response a kind of compressor tolerance regulate hydraulic actuator, specifically a kind of compressor tolerance regulates hydraulic actuator.
Background technique
Various compressor is applied, wherein reciprocating compressor extensive use in every profession and trade in the industrial fields such as oil refining, chemical industry, natural gas transport.Usually, the maximum volume flow of user always needed for device or system of compressor selects compressor, two are often opened for one when being equipped with compressor in many devices, have even one open one standby, the actual conditions of compressor but changes with the needs of technological process or consumption gas equipment, even but in full production state, still have the pressurized gas being equivalent to a compressor design discharge capacity about 40% ~ 60% to return.Some compressor bank adopt the backflow control mode of " three return ", and be about to pressurized gas more than needed and turn back to suction port of compressor by bypass line, this causes the huge waste of the energy undoubtedly.In addition, compressor bank does not return control step by step, cannot realize progressively slowly increasing load, the impact to unit and system that when can not avoid starting shooting, rapid pressure causes, the stability of influential system.
At present, in oil refining, in chemical industry, compressor tolerance regulative mode has a lot, but the overwhelming majority not only wastes energy and also control rate and precision also unsatisfactory.Such as, the bypass regulative mode generally adopted, it is less economical; Rotational speed regulation can affect the normal operation of compressor when the slow-speed of revolution, and the price of high power motor frequency variator is very expensive; The speed of response of variable clearance intonation joint is slow, and usually needs more manual intervention, and reliability is poor; And adopt the pressure fork arm of suction valve or plunger type unloading mechanism can only realize the rough level that has to regulate.Have employed different modes in this respect abroad, the load as adopted hydraulic actuator to realize 10% ~ 100% in FydroCOM amount regulating system regulates arbitrarily.But this hydraulic actuator is formed primarily of solenoid valve, one-way valve and oil hydraulic cylinder, drive unloader, to air valve generation effect by electromagnetic valve Innerscoping cylinder.But the hydraulic actuator speed of response of this structure is comparatively slow, and tolerance degree of regulation is lower.Along with the development of environmental protection and energy saving situation, save energy and reduce the cost and will become the necessary of each enterprise, therefore the intelligentized hydraulic actuator of development of new becomes an urgent demand of enterprise.
Summary of the invention
The object of the invention is the deficiency of the compressor tolerance adjusting actuator for above-mentioned existence, a kind of compressor tolerance is provided to regulate hydraulic actuator, this compressor tolerance regulates hydraulic actuator can pilot pressure and flow quickly and accurately, realizes the continuous adjustment compressor tolerance regulable control of tolerance 0 ~ 100%.
The technical solution adopted for the present invention to solve the technical problems is: a kind of compressor tolerance regulates hydraulic actuator, mainly comprise valve body, upper cover, electric coupler, intergrated circuit, electrohydraulic control, solenoid hydraulic lock, piston, spring, piston rod, connecting rod, drive link, stuffing box gland, seal ring, bolt, it is characterized in that: electric coupler, intergrated circuit are fixed in hydraulic actuator upper cover respectively; The upper cover of hydraulic actuator and electrohydraulic control are fixed on electromagnetic hydraulic pressure respectively and lock, and solenoid hydraulic lock is fixed on valve body, and be respectively equipped with piston cylinder and cylinder in the middle of the longitudinal direction of valve body, between piston cylinder and cylinder, valve body is provided with hole; Piston and piston rod connect as one, and piston is contained in the piston cylinder in valve body, and spring housing is contained in the top of piston rod, and piston rod inserts in the hole of valve body between piston cylinder and cylinder, and piston-rod lower end head is equipped with ∩ shape connecting head; ∩ shape connecting head top is the cylinder of band screw thread, and locking nut is contained on ∩ shape connecting head cylinder, and the cylinder on ∩ shape connecting head screws in the hole of piston-rod lower end, screws locking nut, ∩ shape connecting head and piston rod is tightened together.The both sides cinclides of ∩ shape connecting head is built with joint shaft bearing, and bearing pin is inserted in the hole of joint shaft bearing and drive link upper end, piston rod, ∩ shape connecting head and drive link hinge is fitted together.Body base is provided with hole, and stuffing box gland is fixed in the hole of body base, and the first seal ring and the second seal ring are housed in the seal groove on stuffing box gland inside and outside wall disc respectively, and stuffing box gland top is respectively equipped with oil ring groove; Drive link is inserted in the hole of stuffing box gland, is closed drive link by the first seal ring.The filler opening J that valve body is established and oil outlet H are communicated with the second oil circuit F with the first oil circuit E in valve body respectively, the first oil circuit E and the second oil circuit F respectively with being connected into and out of hydraulic fluid port of solenoid hydraulic lock and electrohydraulic control; In valve body, the first oil circuit E is connected with stuffing box gland upper end oil ring groove respectively with the second oil circuit F; Load oil circuit on electrohydraulic control is connected with oil circuit B with the oil circuit A in solenoid hydraulic lock respectively; The three oil circuit C of oil circuit A in solenoid hydraulic lock in valve body is connected with the oil pocket of piston base, and the four oil circuit D of the oil circuit B in solenoid hydraulic lock in valve body is connected with upper piston area oil pocket.Intergrated circuit, electrohydraulic control and solenoid hydraulic lock are respectively by wire access electric coupler.
A kind of compressor tolerance of the present invention regulates the intergrated circuit in hydraulic actuator, mainly comprises power module, signal receiving module, communication module, micro-control module, analog drive circuit and digital driver circuitry.The power supply signal Z1 provided by custom system circuit, by the power input interface S1 on Wiring port Z2 on the two ends difference electrical connectors of the first wire and power module, powers to power module; The feedback signal Z3 provided by custom system circuit, is connected with the port x 2 of signal receiving module by the port Z4 on the second wire electrical connectors, feedback signal is transported to signal receiving module; Custom system process control machine by the electric socket of the input/output signal such as command signal, operational data on electric coupler, transports to communication module by communication data bus by input/output bus.Input/output bus is connected with electric coupler, and electric coupler is connected with communication data bus, communication module and data/address bus connect; Data/address bus is connected with micro-control module; The communication between communication module and micro-control module is realized by the electric socket at data/address bus two ends.Micro-control module receives feedback signal and the command signal of custom system input, through comparing, analyzing, dummy instruction is transferred to analog drive circuit respectively by its port M3 and port M4 by computing, digital command is transported to digital driver circuitry, and digital command is transferred to solenoid hydraulic lock by power stage circuit by digital driver circuitry; Dummy instruction is transferred to electrohydraulic control by power stage circuit by analog drive circuit.
Power module of the present invention is connected with the power interface M1 in the power interface X1 in signal receiving module, the power interface T1 on communication module, micro-control module, the power interface on digital driver circuitry and the power interface Q2 on analog drive circuit respectively by wire by power output interface (S2, S3, S4, S5, S6).
The invention has the beneficial effects as follows: this compressor tolerance regulates hydraulic actuator, by high-quality control unit and hydraulic actuator is designed in conjunction becomes one, can not only pilot pressure and flow quickly and accurately, intelligent stepless regulates compressor tolerance, and level of integration is high, volume is little, and cost is low, is conducive to compressor tolerance and regulates promoting the use of of hydraulic actuator.
Below in conjunction with drawings and Examples, the present invention is further illustrated.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of Fig. 1.
Fig. 3 is the circuit theory diagrams of Fig. 1
In the drawings: 1, electric coupler, 2, upper cover, 3, intergrated circuit, 4, electrohydraulic control, 5, solenoid hydraulic lock, 6, valve body, 7, piston, 8, spring, 9, piston rod, 10, ∩ shape connecting head, 11, drive link, 12a, the first seal ring, 12, the second seal ring, 13, stuffing box gland, 14, bolt, 15, digital driver circuitry, 16, input/output bus, 17, power module, 18, analog drive circuit, 19, signal receiving module, 20, communication data bus, 21, communication module, 22, data/address bus, 23, micro-control module.
Embodiment
In the embodiment shown in Fig. 1 of the present invention, electric coupler 1, intergrated circuit 3 are fixed in hydraulic actuator upper cover 2 respectively; The upper cover 2 of hydraulic actuator and electrohydraulic control 4 are fixed on solenoid hydraulic lock 5 respectively; Solenoid hydraulic lock 5 is fixed on valve body 6, is fixed on compresser cylinder cylinder cap by valve body 6 respectively with bolt 14.Be respectively equipped with piston cylinder and cylinder in the middle of the longitudinal direction of valve body 6, the valve body 6 between piston cylinder and cylinder is provided with hole; Piston 7 and piston rod 9 are integrated connection, and piston 7 is contained in the piston cylinder in valve body 6, and spring 8 is sleeved on piston rod 9 top, and control between piston cylinder bottom surface and piston bottom surface; Piston rod 9 inserts in the hole between piston cylinder and cylinder, piston rod 9 lower end is provided with ∩ shape connecting head, ∩ shape connecting head top is the cylinder of band screw thread, locking nut is contained on ∩ shape connecting head cylinder, cylinder on ∩ shape connecting head screws in the hole of piston-rod lower end, screw locking nut, ∩ shape connecting head and piston rod 9 are fastened together.The both sides cinclides of ∩ shape connecting head 10 is built with joint shaft bearing, and bearing pin is inserted in the hole of joint shaft bearing and drive link 11 upper end, and piston rod 9, ∩ shape are connected 10 together with drive link 11 chain connection.Be provided with hole bottom valve body 6, stuffing box gland 13 is fixed in the hole bottom valve body 6, and the first seal ring 12a and the second seal ring 12 are housed in the seal groove on stuffing box gland 13 inside and outside wall disc respectively, and stuffing box gland 13 top is respectively equipped with oil ring groove; Drive link 11 is inserted in the hole of stuffing box gland 13, is closed drive link 11 by the first seal ring 12a.The filler opening J that valve body 6 is established and oil outlet H are communicated with the second oil circuit (hole) F with the first oil circuit (hole) E in valve body 6 respectively, the first oil circuit (hole) E and the second oil circuit (hole) F respectively with being connected into and out of hydraulic fluid port of solenoid hydraulic lock 5 and electrohydraulic control 4; In valve body 6, the first oil circuit (hole) E and the second oil circuit (hole) F are connected with stuffing box gland 13 upper end oil ring groove respectively; Load oil circuit on electrohydraulic control 4 is connected with the oil circuit B in solenoid hydraulic lock 5 with the oil circuit A in solenoid hydraulic lock 5 respectively; Three oil circuit (hole) C of oil circuit A in solenoid hydraulic lock 5 in valve body 6 is connected with the oil pocket of piston base, and four oil circuit (hole) D of the oil circuit B in solenoid hydraulic lock 5 in valve body 6 is connected with upper piston area oil pocket.Respectively by wire access electric coupler 1 between intergrated circuit 3, electrohydraulic control 4 and solenoid hydraulic lock 5.
In the embodiment shown in Fig. 2 and Fig. 3, intergrated circuit 3 of the present invention mainly comprises power module 17, signal receiving module 19, communication module 21, micro-control module 23, analog drive circuit 18 and digital driver circuitry 15.The power supply signal Z1 provided by custom system circuit, by the port Z2 on the first wire electrical connectors 1 and power input interface S1 on power module 17, powers to power module 17; The feedback signal Z3 provided by custom system circuit, by the port x 2 of the port Z4 on the second wire electrical connectors 1 and signal receiving module 19, transports to signal receiving module 19 by feedback signal; Custom system process control machine by the electric socket of the input/output signal such as command signal, operational data on electric coupler 1, is transferred to communication module 21 by communication data bus 20 by input/output bus 21.Input/output bus 16 is connected with electric coupler 1, and electric coupler 1 is connected with communication data bus 20, communication module 21 and data/address bus 22 connect, and data/address bus 22 is connected with micro-control module 23; The communication between communication module 21 and micro-control module 23 is realized by the electric socket at data/address bus 22 two ends.Micro-control module 23 receives feedback signal and the command signal of custom system input, through comparing, analyzing, dummy instruction is transferred to analog drive circuit 18 respectively by the port M3 on it and port M4 by computing, digital command is transferred to digital driver circuitry 15, digital command is transferred to solenoid hydraulic lock 5 by power stage circuit by digital driver circuitry 15; Dummy instruction is transferred to electrohydraulic control 4 by power stage circuit by analog drive circuit 18.
Power module 17 is connected with the power interface M1 in the power interface X1 in signal receiving module 19, the power interface T1 on communication module 21, micro-control module 23, the power interface D1 on digital driver circuitry 15 and the power interface Q2 on analog drive circuit 18 respectively by wire by power output interface (S2, S3, S4, S5, S6).
Working principle: when this compressor tolerance regulates hydraulic actuator to be in original state, when namely custom system does not provide oil sources and power supply, solenoid hydraulic lock 5 is closed, and under the effect of spring 8, piston 7 is in upper, and under the drive of connecting rod 10, drive link 11 is retracted.
When custom system provides power supply signal to power module 17 by electric coupler 1, power module 17 powers to respectively signal receiving module 19, communication module 21, micro-control module 23, analog drive circuit 18 and digital driver circuitry 15 by power supply line.Meanwhile, custom system provides high pressure oil through hydraulic circuit E.If custom system input presses down command signal, communication module 21 is delivered to through electric coupler 1 and communication data bus 20 by the electric socket at input/output bus 16 two ends, command signal is defeated by micro-control module 23 by the electric socket at data/address bus 22 two ends by communication module 21, dummy instruction signal to be defeated by the Wiring port D2 on digital driver circuitry 15 by micro-control module 23 by computing, and it is electric to make solenoid hydraulic lock 5 obtain through power stage circuit D3, solenoid hydraulic lock 5 is opened, and the load oil circuit of electrohydraulic control 4 is connected with upper and lower two chambeies of piston 7 respectively.Digital command signal is defeated by the Wiring port Q1 on analog drive circuit 18 by micro-control module 23 simultaneously, and through power stage circuit Q3, electrohydraulic control 4 is worked, control the epicoele that high pressure oil flows into piston 7, cavity of resorption fluid flows back to H oil outlet, now drive link 11 stretches out, and opens system controlled air valve.When the system instruction signals of custom system feedback signal and input is unequal, command signal and feedback signal compare by micro-control module 23, analyze, after computing, error command signal is defeated by the Wiring port Q1 on drive circuit 18, and electrohydraulic control 4 is worked through power stage circuit Q3, until the digital command signal one_to_one corresponding that the control flow of electrohydraulic control 4 output and custom system input.Open and close action is realized by the instruction that system inputs by air control valve.
The high pressure oil provided when system enters the upper-end surface of stuffing box gland 13 by filler opening J and the first oil circuit (hole) E, drive link 11 is when carrying out expanding-contracting action, fluid is brought in the surface of contact of drive link 11 and stuffing box gland 13 and carry out lubricating, lowering the temperature, flow into the annular groove on stuffing box gland 13 again, flow back to fuel tank through the second oil circuit (hole) F and oil outlet H.