CN210769025U - Controller of dual-fuel generator set - Google Patents
Controller of dual-fuel generator set Download PDFInfo
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- CN210769025U CN210769025U CN201921539538.4U CN201921539538U CN210769025U CN 210769025 U CN210769025 U CN 210769025U CN 201921539538 U CN201921539538 U CN 201921539538U CN 210769025 U CN210769025 U CN 210769025U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The application discloses a dual-fuel generator set controller, wherein a storage battery is always connected with a first coil, whether the storage battery supplies power is controlled by the working states of a second switching circuit and a first switching circuit, the second switching circuit and the first switching circuit are automatically switched off according to the running states of a generator and an engine, when the engine is started, the second switching circuit is switched on to supply power when the storage battery is started, after the generator runs stably, the first switching circuit is switched on, the second switching circuit is switched off to automatically cut off the power supply of the storage battery, the fuel electromagnetic valve is kept to act by utilizing the self power generation of the engine to ensure that a fuel channel is smooth, when the generator and the engine are stopped, the second switching circuit and the first switching circuit are both switched off to ensure that the storage battery cannot supply power, the automatic control of the power supply of the storage battery is realized, the artificial operation amount is reduced, and the operation amount of the generator is, meanwhile, energy waste caused by forgetting to turn off the power supply of the storage battery is avoided, and the service life of the storage battery is prolonged.
Description
Technical Field
The utility model relates to a dual fuel engine unit field, in particular to dual fuel generator set controller.
Background
In the dual-fuel generator set, fuel oil and fuel gas cannot be mixed to participate in combustion, so that the fuel oil passage needs to be immediately cut off through a fuel oil electromagnetic valve when the generator is started by using the fuel gas.
The panel of the generator of the existing dual-fuel generator set is provided with a power switch, if a fuel long-distance electromagnetic valve is adopted, the engine can be directly started when fuel is started, when the fuel is started, the power switch is manually opened, the storage battery supplies power to the fuel electromagnetic valve, a fuel passage is cut off, and the engine can be started; if the fuel long-closed electromagnetic valve is adopted, the fuel long-closed electromagnetic valve is directly started when the fuel is started, the storage battery supplies power to the fuel electromagnetic valve to open the fuel passage only by manually opening the power switch when the fuel is started, and the engine can be started only if the storage battery does not have power, the fuel passage is blocked and the engine cannot be started.
The existing dual-fuel generator needs to manually operate a power switch, the power switch needs to be manually turned off after the generator is shut down, otherwise, a storage battery is always in a power consumption state, and the operation is complex.
There is a need for a dual fuel generator that is simple to operate.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a dual-fuel generator set controller, which reduces the operation amount. The specific scheme is as follows:
a dual fuel generator set controller comprises a fuel control box and a controller, wherein the controller comprises a first relay, a first switch circuit, a time delay circuit and a second switch circuit;
one end of a first coil of the first relay is connected with a storage battery, the other end of the first coil is connected with the input end of the second switch circuit, the output end of the second switch circuit is grounded, the control end of the second switch circuit, the input end of the first switch circuit and the power coil are mutually connected, a first contact of the first relay is a double contact, the direct-current output end of the generator and a fuel control line are connected when the first contact is normally closed, the storage battery and the fuel control line are connected when the first contact is opened, the control end of the first switch circuit is connected with the direct-current output end of the generator through the time delay circuit, and the output end of the first switch circuit is grounded;
wherein the first switching circuit has a higher on voltage than the second switching circuit.
Optionally, the fuel control box is further included;
the fuel control box is used for controlling a motor flameout line to be ungrounded and keeping a fuel electromagnetic valve to be de-energized when an engine for driving the generator to work is started by fuel oil so as to enable an oil path of a carburetor oil cup of the engine to be conducted; when the engine is started by gas, the motor flameout wire is controlled not to be grounded, and the fuel electromagnetic valve is controlled to be electrified, so that the oil way of the carburetor oil cup is closed;
wherein, the fuel electromagnetic valve is a normally open electromagnetic valve.
Optionally, the fuel control box is further included;
the fuel control box is used for controlling a motor flameout line to be not grounded and controlling a fuel electromagnetic valve to be electrified when an engine for driving the generator to work is started by fuel oil so as to enable an oil path of a carburetor oil cup of the engine to be conducted; when the engine is started by gas, the motor flameout wire is controlled not to be grounded, the fuel oil electromagnetic valve is in a normally closed state, and the oil path of the carburetor oil cup is closed;
wherein, the fuel electromagnetic valve is a normally closed electromagnetic valve.
Optionally, the power supply further comprises a third switch circuit and a second relay;
the control end of the third switch circuit and the control end power coil of the first switch circuit are connected with each other, the output end of the third switch circuit is grounded, the input end of the third switch circuit is connected with one end of the second coil of the second relay, the other end of the second coil is connected with the direct current output end of the generator, the second contact of the second relay is a normally closed contact and is connected between the storage battery and the starting control line.
Optionally, the third switching circuit includes a third triode and a fifth resistor;
one end of the fifth resistor is used as a control end of the third switch circuit and connected with the control end of the first switch circuit, the base of the third triode is connected with the other end of the fifth resistor, the emitter of the third triode is used as the output end of the third switch circuit and grounded, and the collector of the third triode is used as the input end of the third switch circuit and connected with one end of the second coil.
Optionally, the second switch circuit includes a sixth resistor and a second triode;
the base electrode of the second triode is used as the control end of the second switching circuit, the power coil is connected with the base electrode of the second triode through the sixth resistor, the collector electrode of the second triode is used as the input end of the second switching circuit, and the emitter electrode of the second triode is used as the output end of the second switching circuit and is grounded.
Optionally, the first switch circuit includes a fourth resistor and a first triode;
one end of the fourth resistor is used as the control end of the first switch circuit and connected with the delay circuit, the other end of the fourth resistor is connected with the base electrode of the first triode, the collector electrode of the first triode is used as the input end of the first switch circuit and connected with the base electrode of the second triode, and the emitter electrode of the first triode is used as the output end of the first switch circuit and grounded.
Optionally, the control end of the second switch circuit is connected with the power coil through a voltage stabilizing circuit;
the voltage stabilizing circuit comprises a fifth diode, a first resistor, a second capacitor, a third capacitor and a first voltage stabilizing diode;
the positive pole of the fifth diode is connected with the power coil, the negative pole of the fifth diode is respectively connected with the first resistor, the second resistor and the positive pole of the second capacitor, the negative pole of the second capacitor is grounded, the other end of the first resistor and the second resistor, the positive pole of the third capacitor, the negative pole of the first voltage stabilizing diode and the control end of the second switch circuit are connected with each other, and the negative pole of the third capacitor and the positive pole of the first voltage stabilizing diode are grounded.
Optionally, the delay circuit includes a second zener diode, a third resistor, and a fourth capacitor;
the negative pole of the second voltage-stabilizing diode is connected with the direct-current output end of the generator, the positive pole of the second voltage-stabilizing diode is connected with one end of the third resistor, the other end of the third resistor, the positive pole of the fourth capacitor and the control end of the first switch circuit are connected with each other, and the negative pole of the fourth capacitor is grounded.
Optionally, the storage battery is connected to the first coil through a fourth diode, and the dc output end of the generator is connected to the second coil through the third diode.
Optionally, the controller further includes a first diode having an anode grounded and a cathode connected to the start control line; the anode of the second diode is grounded, and the cathode of the second diode is connected with the fuel control line; a sixth diode having an anode connected to an input terminal of the third switching circuit and a cathode connected to a cathode of the third diode; the anode of the first capacitor is connected with the cathode of the sixth diode, and the cathode of the first capacitor is grounded; and the anode of the seventh diode is connected with the input end of the second switching circuit, and the cathode of the seventh diode is connected with the cathode of the fourth diode.
Optionally, the fuel control box comprises a fuel control switch, a flameout switch and an electric starting switch;
the fuel control switch is used for switching on or off the fuel control line and controlling the fuel electromagnetic valve to act;
the flameout switch is used for controlling the flameout line to be grounded;
and the electric starting switch is used for switching on or off the starting control line and controlling the electric starting of the engine.
The utility model also discloses a dual-fuel generating set, include as aforementioned dual-fuel generating set controller, oil gas valve, generator and engine.
The utility model discloses a double-fuel generator set controller, including the controller connected with the fuel control box, the controller includes the first relay, the first switch circuit, the time delay circuit and the second switch circuit; one end of a first coil of the first relay is connected with a storage battery, the other end of the first coil is connected with the input end of the second switch circuit, the output end of the second switch circuit is grounded, the control end of the second switch circuit, the input end of the first switch circuit and the power coil are mutually connected, a first contact of the first relay is a double contact, the direct-current output end of the generator and a fuel control line are connected when the first contact is normally closed, the storage battery and the fuel control line are connected when the first contact is opened, the control end of the first switch circuit is connected with the direct-current output end of the generator through the time delay circuit, and the output end of the first switch circuit is grounded; wherein the first switching circuit has a higher on voltage than the second switching circuit.
The utility model has the advantages that the storage battery is always connected with the first coil, whether the storage battery supplies power is controlled by the working state of the second switch circuit and the first switch circuit, the second switch circuit and the first switch circuit are automatically switched off according to the running state of the generator and the engine, when the engine is started, the second switch circuit is switched on to supply power when the storage battery is started, after the generator runs stably, the delay circuit is switched on with the first switch circuit, the second switch circuit is switched off to automatically cut off the power supply of the storage battery, the fuel electromagnetic valve is kept to act by utilizing the self power generation of the generator to ensure the smooth fuel passage, when the generator and the engine are stopped, the second switch circuit and the first switch circuit are both switched off to ensure that the storage battery can not supply power, the storage battery is not required to be manually switched, the automatic control of the power supply of the storage battery is realized, the manual operation amount is reduced, and the, meanwhile, the energy waste caused by long-term power supply of the storage battery due to forgetting of people is avoided, and the service life of the storage battery is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a dual-fuel generator set controller and a dual-fuel generator set according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another dual-fuel generator set controller and dual-fuel generator set according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a controller according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another controller disclosed in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of another controller according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses a dual-fuel generating set controller, refer to fig. 1 and show, this controller includes the controller 11 that is connected with fuel control box 12, refer to fig. 3 and show, controller 11 includes first relay, first switch circuit 111, time delay circuit 113 and second switch circuit 112;
one end of a first coil K2 of the first relay is connected with the storage battery 4, the other end of the first coil K2 is connected with the input end of a second switch circuit 112, the output end of the second switch circuit 112 is grounded, the control end of the second switch circuit 112, the input end of a first switch circuit 111 and a power coil 1 are connected with each other, a first contact K12 of the first relay is a double contact, the first contact K12 is connected with a generator direct-current output end 2 and a fuel control line 5 when being normally closed, the first contact K12 is connected with the storage battery 4 and the fuel control line 5 when being opened, the control end of the first switch circuit 111 is connected with the generator direct-current output end 2 through a delay circuit 113, and the output end of the first switch circuit 111 is grounded;
specifically, the fuel control box 12 is used for controlling the motor flameout wire to be not grounded and controlling the fuel electromagnetic valve 133 of the engine 13 when the engine 13 for driving the generator 14 to work is started by fuel, so that the carburetor oil cup oil path of the engine 13 is conducted, the engine 13 is started by fuel, and the power coil 1 outputs voltage to the controller 11; when the engine 13 is started by gas, the motor flameout wire is controlled not to be grounded, the fuel electromagnetic valve 133 is controlled to cut off the oil way of the carburetor oil cup, the engine 13 is started by gas, and the power coil 1 outputs voltage to the controller 11; when the engine 13 is shut off, the motor shut-off line is controlled to be grounded;
the on-voltage of the first switch circuit 111 is higher than that of the second switch circuit 112, the start control line 3 is connected to the battery 4 in the controller 11, the fuel control box 12 controls the start control line 3 to be turned on and off, and after the fuel control box 12 controls the start control line 3 to be turned on, the battery 4 supplies power to turn on a power supply line of the engine 13, so that the engine 13 is electrically started.
Specifically, the fuel solenoid valve 133 may be a normally closed solenoid valve or a normally open solenoid valve.
Specifically, when the fuel solenoid valve 133 is a normally open solenoid valve and the fuel solenoid valve 133 is not powered, the carburetor oil cup oil path of the engine 13 is conducted, the fuel gas path of the engine 13 is closed, and when the engine 13 is started by fuel gas, the fuel control box 12 controls the motor flameout line to be ungrounded, controls the fuel solenoid valve 133 to be powered, so that the carburetor oil cup oil path is turned off, the fuel gas path is conducted, and the engine 13 is started by fuel gas; when the engine 13 is started by using fuel oil, the fuel control box 12 controls the motor flameout wire to be ungrounded, does not need to control the fuel electromagnetic valve 133 to be electrified, keeps the power-off state of the fuel electromagnetic valve 133, so that the oil way of the carburetor oil cup is conducted, the fuel gas passage is cut off, and the engine 13 is started by using the fuel oil; when the engine 13 is turned off, the motor kill line is controlled to be grounded.
Specifically, when the fuel solenoid valve 133 is a normally closed solenoid valve and the fuel solenoid valve 133 is not powered, the carburetor oil cup oil path of the engine 13 is closed, the fuel gas path of the engine 13 is conducted, and when the fuel control box 12 is started by fuel oil, the fuel control box 12 controls the motor flameout wire to be ungrounded, controls the fuel solenoid valve 133 to be powered, closes the fuel solenoid valve 133, conducts the carburetor oil cup oil path, and shuts off the fuel gas path; when the engine 13 is started by gas, the fuel control box 12 controls the flameout line of the motor to be grounded, and keeps the fuel electromagnetic valve 133 to be disconnected, so that the fuel electromagnetic valve 133 is in a default normally open state, the oil path of the carburetor oil cup is closed, the gas path is communicated, and the engine 13 is started by using the gas; when the engine 13 is turned off, the motor kill line is controlled to be grounded.
It should be noted that the fuel solenoid valve 133 only controls the closing of the oil path of the carburetor cup, as for the fuel gas path and the fuel supply line, they are controlled by separate valves, when the engine 13 is started by fuel, the valve of the fuel supply line is opened, the fuel enters the engine 13 through the oil path of the engine 13, and supplies fuel for the starting of the engine 13; when the engine 13 is started by gas, the valve of the gas passage is opened, and the gas enters the engine 13 through the gas passage of the engine 13 to provide fuel for starting the engine 13.
Specifically, the following describes specific actions of the dual-fuel generator set controller when the fuel electromagnetic valve 133 is a normally open electromagnetic valve:
specifically, when the engine 13 is not started, the fuel control box 12 is kept in an initial state, that is, the motor off line is grounded, the fuel control box 12 can disconnect the connection between the fuel control line 5 and the fuel electromagnetic valve 133, and can also connect the anode of the fuel electromagnetic valve 133 with the direct current output end 2 of the generator in the controller 11 through the fuel control line 5, at this time, because the engine 13 does not work and does not have power output, the fuel electromagnetic valve 133 is not powered, and the oil path of the engine 13 is always in a connected state.
Specifically, when the engine 13 is started by using fuel oil, the fuel control box 12 disconnects the anode of the fuel oil electromagnetic valve 133 from the controller 11, the fuel oil control line 5 is always in a disconnected state, the fuel oil electromagnetic valve 133 is in an initial state, the oil path is in a connected state, the oil path is kept smooth, the fuel gas path is in a closed state, the fuel control box 12 controls the motor flameout line not to be grounded, so that the engine 13 can be ignited, when the fuel pipeline of the engine 13 opens the oil valve, the fuel oil enters the engine 13 through the oil path, and after the engine 13 is ignited, even if the generator 14 generates electricity, the first coil K2 of the first relay is electrified, the first contact K12 is operated, the fuel oil electromagnetic valve 133 is not electrified, so that the oil path is kept smooth, and the engine 13 is kept in stable operation.
Specifically, when the engine 13 is started by gas, the fuel control box 12 controls the motor flameout line not to be grounded so as to enable the engine 13 to ignite, the fuel control box 12 controls the fuel control line 5 to be connected so as to enable the fuel electromagnetic valve 133 to be connected with the generator direct current output end 2, the first contact K12 of the first relay acts effectively, since a part of fuel oil still remains in the carburetor oil cup, in order to prevent the fuel oil in the carburetor oil cup from entering the engine 13 to cause oil-gas mixing, after the engine 13 ignites, the engine 13 is started by using the fuel oil, since the power coil 1 gets electricity after the engine 13 rotates, the generator 14 cannot be started and the generator direct current output end 2 does not output before the power coil 1 outputs voltage, even if the first contact K12 is connected with the fuel control line 5 and the generator direct current output end 2, the gasoline cannot be driven to act, when the power coil 1 outputs voltage, the control end of the second switch circuit 112 is powered on, the input end and the output end of the second switch circuit 112 are conducted, the first coil K2 is powered by the storage battery 4, the first contact K12 acts, the fuel control line 5 is connected with the storage battery 4, the fuel electromagnetic valve 133 is powered on to act, the oil way of the carburetor oil cup is disconnected, only fuel gas in the combustion chamber of the engine 13 is ensured, the engine 13 runs through the fuel gas, the rotating speed of the generator 14 is increased along with the driving of the engine 13, the direct current output end 2 of the generator outputs voltage and continuously increases until the conduction condition of the delay circuit 113 is met, the input end and the output end of the first switch circuit 111 are conducted, the control end of the second switch circuit 112 is grounded, the input end and the output end of the second switch circuit 112 are disconnected, the first coil K11 is powered off, the first contact K12 restores the connection of the fuel control line 5 and, at this time, the generator dc output terminal 2 can output a stable voltage, and the fuel solenoid valve 133 is actuated to cut off the oil path, thereby ensuring that the engine 13 uses only gas.
After the engine 13 can be ensured to run stably by using the delay circuit 113, the power supply to the oil solenoid valve 133 is switched, so that the condition that the oil cup oil path is conducted and the oil and gas are mixed due to unstable power supply of the direct current output end 2 of the generator caused by too early switching is avoided.
Specifically, when the engine 13 is turned off from a gas state, the fuel control box 12 controls the motor ignition line to be grounded, so that the ignition of the spark plug of the engine 13 is stopped, the fuel control box 12 only needs to keep the state of the fuel control line 5 when the engine is started, the fuel control line 5 is controlled to be kept in a connected state, the engine 13 is gradually decelerated after the ignition of the spark plug is stopped, the output voltage of the power coil 1 is gradually reduced, the voltage of the direct current output end 2 of the generator is also gradually reduced, the voltage output by the direct current output end 2 of the generator is firstly lower than the conduction condition of the delay circuit 113 before the voltage of the direct current output end 2 of the generator is reduced to be incapable of maintaining the power supply of the fuel electromagnetic valve 133, the input end and the output end of the first switching circuit 111 are disconnected, the residual output voltage of the power coil 1 enables the second switching circuit 112 to continue to conduct the, the first contact K12 acts to connect the fuel control line 5 with the storage battery 4, so as to ensure that the fuel electromagnetic valve 133 is electrified, the oil way of the oil cup is continuously kept to be closed, after the power coil 1 has no output completely, the input end and the output end of the second switch circuit 112 are closed, the first coil K2 is electrified, the passage between the storage battery 4 and the fuel electromagnetic valve 133 is disconnected, at the moment, the direct current output end 21 of the generator has no output voltage, the fuel electromagnetic valve 133 is electrified, the oil way of the oil cup is conducted, and the generator 14 and the engine 13 stop running.
Specifically, when the fuel electromagnetic valve 133 is a normally closed electromagnetic valve, the specific actions of the dual-fuel generator set controller are the same as the above-described principle when the fuel electromagnetic valve 133 is a normally open electromagnetic valve, and are not described herein again.
Wherein, the power coil 1 can be a power charging coil or a power ignition coil.
It can be seen that, the embodiment of the present invention provides a battery 4 always connected to the first coil K11, the second switch circuit 112 and the first switch circuit 111 are turned on and off automatically according to the operating status of the generator 14 and the engine 13 when the engine 13 is started, the second switch circuit 112 is turned on to supply power to the battery 4 when the engine 13 is started, the delay circuit 113 is turned on to the first switch circuit 111 and the second switch circuit 112 is turned off after the engine 13 is stably operated, the power supply to the battery 4 is automatically cut off, the fuel solenoid valve 133 is operated by the power generated by the engine 13 itself to ensure the smooth fuel passage, when the generator 14 and the engine 13 are stopped, the second switch circuit 112 and the first switch circuit 111 are both turned off to ensure the power supply to the battery 4, and the battery 4 does not need to be manually switched, the automatic control of the power supply of the storage battery 4 is realized, the manual operation amount is reduced, the operation amount of the generator 14 is simplified, meanwhile, the energy waste caused by the long-term power supply of the storage battery 4 due to the forgetting of people is avoided, and the service life of the storage battery 4 is prolonged.
Further, referring to fig. 5, the second switch circuit 112 may include a sixth resistor R6 and a second transistor Q3;
the base of the second transistor Q3 is used as the control terminal of the second switch circuit 112, the power coil 1 is connected with the base of the second transistor Q3 through the sixth resistor R6, the collector of the second transistor Q3 is used as the input terminal of the second switch circuit 112, and the emitter of the second transistor Q3 is grounded as the output terminal of the second switch circuit 112.
Specifically, as shown in fig. 5, the delay circuit 113 may include a second zener diode D2, a third resistor R3, and a fourth capacitor C4;
the negative electrode of the second voltage-stabilizing diode D2 is connected with the direct-current output end 2 of the generator, the positive electrode of the second voltage-stabilizing diode D2 is connected with one end of a third resistor R3, the other end of the third resistor R3, the positive electrode of a fourth capacitor C4 and the base electrode of a first triode Q1 are connected with each other, and the negative electrode of a fourth capacitor C4 is grounded.
Specifically, referring to fig. 5, the first switch circuit 111 may include a fourth resistor R4 and a first transistor Q1;
one end of the fourth resistor R4 is connected to the delay circuit 113 as the control end of the first switch circuit 111, the other end of the fourth resistor R4 is connected to the base of the first transistor Q1, the collector of the first transistor Q1 is connected to the base of the second transistor Q3 as the input end of the first switch circuit 111, and the emitter of the first transistor Q1 is grounded as the output end of the first switch circuit 111.
Specifically, second zener diode D2 plays the effect of time delay conduction, only when the output voltage of generator dc output 2 satisfies second zener diode D2's zener breakdown voltage, second zener diode D2 will be punctured, thereby make first triode Q1's base electrified, make first triode Q1's conduction time later than second triode Q3, ensure that second triode Q3 has sufficient time to conduct, let fuel control line 5 be connected with battery 4 before generator dc output 2 output voltage stabilizes, the zener breakdown voltage of second zener diode D2 can be 5V.
It will be appreciated that, with reference to FIG. 2, the fuel control cartridge 12 includes a respective fuel control switch K1, kill switch K3, and electrical enable switch K2;
the fuel control switch K1 is used for switching on or off the fuel control line 5 and controlling the action of the fuel electromagnetic valve 133;
a flameout switch K3 for controlling the flameout line to be grounded;
and an electric start switch K2 for turning on or off the start control line 3 to control the electric start of the engine 13.
Specifically, above-mentioned fuel control switch K1 can be normally closed switch, and flame-out switch K3 can be normally open switch, and electric starting switch K2 can be normally open switch, and three switch can be micro-gap switch, and when fuel control switch K1 normally closed, switch on fuel control line 5, when flame-out switch K3 normally opens, make flame-out wire ungrounded, when electric starting switch K2 normally opens, disconnection start control line 3.
When the fuel solenoid valve 133 is a normally open solenoid valve, the fuel control switch K1 is a normally open switch, and when the fuel solenoid valve 133 is a normally closed solenoid valve, the fuel control switch K1 is a normally closed switch.
Fig. 1 and 2 include a starter motor 131 and an ignition coil 132.
The embodiment of the utility model discloses a concrete dual fuel generating set controller 11, for last embodiment, this embodiment has made further explanation and optimization to technical scheme. Referring to fig. 4, specifically:
specifically, after the engine 13 is electrically started, the fuel control box 12 can still perform a starting operation, if the starting program of the engine 13 is triggered again during the running of the engine 13, the starting motor 131 in the engine 13 may be caused to operate again, a gear of the starting motor 131 collides with a flywheel gear ring rotating at a high speed, and the starting motor 131 may be damaged, so that in order to avoid repeated starting misoperation caused by misoperation after the engine 13 is started, a third switch circuit 113 and a second relay may be further included;
the control end of the third switch circuit 113 is connected with the control end of the first switch circuit 112, the output end of the third switch circuit 113 is grounded, the input end of the third switch circuit 113 is connected with one end of a second coil K21 of the second relay, the other end of the second coil K21 is connected with the direct-current output end 2 of the generator, and a second contact K22 of the second relay is a normally closed contact and is connected between the storage battery 4 and the starting control line 3;
and the fuel control box 12 is also used for controlling the starting control wire 4 to be communicated when the engine 13 is electrically started so as to start the engine 13.
Specifically, after the fuel control box 12 controls the electric start, the storage battery 4, the start control line 3 and the corresponding start circuit are communicated, the engine 13 is started, after the engine 13 is started, the output voltage of the generator dc output end 2 is steadily increased until the output voltage of the generator dc output end 2 meets the conduction condition of the delay circuit 113, the control end of the third switch circuit 113 receives the voltage output by the power coil 1, the input end and the output end of the third switch circuit 113 are conducted, meanwhile, the second coil K21 receives the voltage output by the generator dc output end 2, the second coil K21 is electrified, the second contact K22 is operated, and the connection between the start control line 3 and the storage battery 4 is disconnected, at this time, even if the fuel control box 12 controls the electric start switch K2, the corresponding start circuit of the engine 13 cannot be conducted, when the engine 13 is operated, the electric starting switch K2 of the fuel control box 12 is disabled, so that the misoperation of starting the engine 13 can be avoided.
Specifically, as shown in fig. 5, the third switching circuit 113 may include a second transistor Q3 and a fifth resistor R5;
one end of the fifth resistor R5 is connected to the control end of the first switch circuit 111 as the control end of the third switch circuit 113, the base of the second transistor Q3 is connected to the other end of the fifth resistor R5, the emitter of the second transistor Q3 is grounded as the output end of the third switch circuit 113, and the collector of the second transistor Q3 is used as the input end of the third switch circuit 113.
Further, the embodiment of the present invention also discloses a specific dual-fuel generator set controller 11, as shown in fig. 5, specifically:
specifically, the battery 4 is connected to the first coil K2 through a fourth diode D4, and the generator dc output terminal 2 is connected to the second coil K21 through a third diode D3.
Specifically, the controller 11 further includes a first diode D1 having an anode grounded and a cathode connected to the start control line 3; a second diode D2 having an anode grounded and a cathode connected to the fuel control line 5; a sixth diode D6 having an anode connected to the input terminal of the third switch circuit 113 and a cathode connected to the cathode of the third diode D3; the anode of the first capacitor C1 is connected with the cathode of the sixth diode D6, and the cathode of the first capacitor C1 is grounded; and a seventh diode D7 having an anode connected to the input terminal of the second switch circuit 112 and a cathode connected to the cathode of the fourth diode D4.
Specifically, the control end of the second switch circuit 112 is connected with the power coil 1 through a voltage stabilizing circuit;
the voltage stabilizing circuit comprises a fifth diode D5, a first resistor R1, a second resistor R2, a second capacitor C2, a third capacitor C3 and a first voltage stabilizing diode DW 1;
the anode of the fifth diode D5 is connected to the power coil 1, the cathode of the fifth diode D5 is connected to the anodes of the first resistor R1, the second resistor R2 and the second capacitor C2, respectively, the cathode of the second capacitor C2 is grounded, the other ends of the first resistor R1 and the second resistor R2, the anode of the third capacitor C3, the cathode of the first zener diode DW1 and the control end of the second switch circuit 112 are connected to each other, and the cathode of the third capacitor C3 and the anode of the first zener diode DW1 are grounded.
In addition, the embodiment of the utility model discloses still disclose a dual fuel generating set, include as aforementioned dual fuel generating set controller, oil gas valve, generator and engine.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The technical content provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained herein by applying specific examples, and the above descriptions of the examples are only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (13)
1. A dual-fuel generating set controller is characterized by comprising a controller connected with a fuel control box, wherein the controller comprises a first relay, a first switch circuit, a time delay circuit and a second switch circuit;
one end of a first coil of the first relay is connected with a storage battery, the other end of the first coil is connected with the input end of the second switch circuit, the output end of the second switch circuit is grounded, the control end of the second switch circuit, the input end of the first switch circuit and the power coil are mutually connected, a first contact of the first relay is a double contact, the direct-current output end of the generator and a fuel control line are connected when the first contact is normally closed, the storage battery and the fuel control line are connected when the first contact is opened, the control end of the first switch circuit is connected with the direct-current output end of the generator through the time delay circuit, and the output end of the first switch circuit is grounded;
wherein the first switching circuit has a higher on voltage than the second switching circuit.
2. The dual fuel generator set controller of claim 1, further comprising a fuel control box;
the fuel control box is used for controlling a motor flameout line to be ungrounded and keeping a fuel electromagnetic valve to be de-energized when an engine for driving the generator to work is started by fuel oil so as to enable an oil path of a carburetor oil cup of the engine to be conducted; when the engine is started by gas, the motor flameout wire is controlled not to be grounded, and the fuel electromagnetic valve is controlled to be electrified, so that the oil way of the carburetor oil cup is closed;
wherein, the fuel electromagnetic valve is a normally open electromagnetic valve.
3. The dual fuel generator set controller of claim 1, further comprising a fuel control box;
the fuel control box is used for controlling a motor flameout line to be not grounded and controlling a fuel electromagnetic valve to be electrified when an engine for driving the generator to work is started by fuel oil so as to enable an oil path of a carburetor oil cup of the engine to be conducted; when the engine is started by gas, the motor flameout wire is controlled not to be grounded, the fuel oil electromagnetic valve is in a normally closed state, and the oil path of the carburetor oil cup is closed;
wherein, the fuel electromagnetic valve is a normally closed electromagnetic valve.
4. The dual fuel genset controller of claim 1 further comprising a third switch circuit and a second relay;
the control end of the third switch circuit and the control end power coil of the first switch circuit are connected with each other, the output end of the third switch circuit is grounded, the input end of the third switch circuit is connected with one end of the second coil of the second relay, the other end of the second coil is connected with the direct current output end of the generator, the second contact of the second relay is a normally closed contact and is connected between the storage battery and the starting control line.
5. The dual fuel genset controller of claim 4 wherein the third switching circuit comprises a third transistor and a fifth resistor;
one end of the fifth resistor is used as a control end of the third switch circuit and connected with the control end of the first switch circuit, the base of the third triode is connected with the other end of the fifth resistor, the emitter of the third triode is used as the output end of the third switch circuit and grounded, and the collector of the third triode is used as the input end of the third switch circuit and connected with one end of the second coil.
6. The dual fuel generator set controller of claim 1, wherein the second switching circuit comprises a sixth resistor and a second triode;
the base electrode of the second triode is used as the control end of the second switching circuit, the power coil is connected with the base electrode of the second triode through the sixth resistor, the collector electrode of the second triode is used as the input end of the second switching circuit, and the emitter electrode of the second triode is used as the output end of the second switching circuit and is grounded.
7. The dual fuel genset controller of claim 6 wherein the first switch circuit comprises a fourth resistor and a first triode;
one end of the fourth resistor is used as the control end of the first switch circuit and connected with the delay circuit, the other end of the fourth resistor is connected with the base electrode of the first triode, the collector electrode of the first triode is used as the input end of the first switch circuit and connected with the base electrode of the second triode, and the emitter electrode of the first triode is used as the output end of the first switch circuit and grounded.
8. The dual fuel generator set controller of claim 1, wherein the control end of the second switching circuit is connected with the power coil through a voltage stabilizing circuit;
the voltage stabilizing circuit comprises a fifth diode, a first resistor, a second capacitor, a third capacitor and a first voltage stabilizing diode;
the positive pole of the fifth diode is connected with the power coil, the negative pole of the fifth diode is respectively connected with the first resistor, the second resistor and the positive pole of the second capacitor, the negative pole of the second capacitor is grounded, the other end of the first resistor and the second resistor, the positive pole of the third capacitor, the negative pole of the first voltage stabilizing diode and the control end of the second switch circuit are connected with each other, and the negative pole of the third capacitor and the positive pole of the first voltage stabilizing diode are grounded.
9. The dual fuel generator set controller of any of claims 1 to 8, wherein the delay circuit comprises a second zener diode, a third resistor, and a fourth capacitor;
the negative pole of the second voltage-stabilizing diode is connected with the direct-current output end of the generator, the positive pole of the second voltage-stabilizing diode is connected with one end of the third resistor, the other end of the third resistor, the positive pole of the fourth capacitor and the control end of the first switch circuit are connected with each other, and the negative pole of the fourth capacitor is grounded.
10. The dual fuel generator set controller of claim 4 or 5, wherein the battery is connected to the first coil through a fourth diode and the generator DC output is connected to the second coil through a third diode.
11. The dual fuel genset controller of claim 10 further comprising a first diode having a positive terminal connected to ground and a negative terminal connected to the start control line; the anode of the second diode is grounded, and the cathode of the second diode is connected with the fuel control line; a sixth diode having an anode connected to an input terminal of the third switching circuit and a cathode connected to a cathode of the third diode; the anode of the first capacitor is connected with the cathode of the sixth diode, and the cathode of the first capacitor is grounded; and the anode of the seventh diode is connected with the input end of the second switching circuit, and the cathode of the seventh diode is connected with the cathode of the fourth diode.
12. The dual fuel generator set controller of claim 2 or 3, wherein the fuel control box includes a fuel control switch, a kill switch, and an electrical start switch;
the fuel control switch is used for switching on or off the fuel control line and controlling the fuel electromagnetic valve to act;
the flameout switch is used for controlling the flameout line to be grounded;
and the electric starting switch is used for switching on or off the starting control line and controlling the electric starting of the engine.
13. A dual fuel genset comprising the dual fuel genset controller of any one of claims 1 to 12, a fuel gas valve, a generator, and an engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921539538.4U CN210769025U (en) | 2019-09-16 | 2019-09-16 | Controller of dual-fuel generator set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921539538.4U CN210769025U (en) | 2019-09-16 | 2019-09-16 | Controller of dual-fuel generator set |
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| CN210769025U true CN210769025U (en) | 2020-06-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486156A (en) * | 2019-09-16 | 2019-11-22 | 隆鑫通用动力股份有限公司 | A kind of double fuel engine generator set controller |
| CN111911319A (en) * | 2020-06-28 | 2020-11-10 | 南京云睿航天科技有限公司 | Double-partition solid engine ignition circuit |
-
2019
- 2019-09-16 CN CN201921539538.4U patent/CN210769025U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486156A (en) * | 2019-09-16 | 2019-11-22 | 隆鑫通用动力股份有限公司 | A kind of double fuel engine generator set controller |
| CN110486156B (en) * | 2019-09-16 | 2024-03-26 | 隆鑫通用动力股份有限公司 | Dual-fuel generator set controller |
| CN111911319A (en) * | 2020-06-28 | 2020-11-10 | 南京云睿航天科技有限公司 | Double-partition solid engine ignition circuit |
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