CN115562128A - Intelligent control system for multi-effect high-temperature overlapping type drying of garbage - Google Patents
Intelligent control system for multi-effect high-temperature overlapping type drying of garbage Download PDFInfo
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- CN115562128A CN115562128A CN202211369448.1A CN202211369448A CN115562128A CN 115562128 A CN115562128 A CN 115562128A CN 202211369448 A CN202211369448 A CN 202211369448A CN 115562128 A CN115562128 A CN 115562128A
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- 238000001035 drying Methods 0.000 title claims abstract description 51
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 49
- 238000004804 winding Methods 0.000 claims description 36
- 238000005070 sampling Methods 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000000855 fermentation Methods 0.000 description 10
- 230000004151 fermentation Effects 0.000 description 10
- 230000007613 environmental effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 239000010806 kitchen waste Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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Abstract
The invention relates to the technical field of garbage treatment equipment, and provides an intelligent control system for multi-effect high-temperature overlapping type garbage drying, which comprises a main control module, a power supply module, a heat pump compressor driving module, a drying detection module and a compressor detection module, wherein the controlled end of the heat pump compressor driving module is connected with the output end of the main control module, the input end of the heat pump compressor driving module is connected with the output end of the power supply module, the output end of the heat pump compressor driving module is suitable for being connected with a heat pump compressor motor so as to control the output power of the heat pump compressor motor according to the instruction of the main control module, the drying detection module is connected with the main control module and is used for transmitting the detected drying environment information to the main control module, and the compressor detection module is connected with the main control module and is used for transmitting the detected working state information of the heat pump compressor motor to the main control module; the invention can monitor the drying process information and intelligently adjust the output power of the heat pump.
Description
Technical Field
The invention relates to the technical field of garbage treatment equipment, in particular to an intelligent control system for multi-effect high-temperature overlapping type drying of garbage.
Background
Along with the acceleration of urbanization process, kitchen garbage's production is the straight-line rising trend, and kitchen garbage drying system can put into fermentation storehouse with kitchen garbage and carry out drying process, can reduce the organic matter volume of landfill, reduces the production of foul smell and landfill leachate, avoids the adverse effect that too much moisture content led to the fact to waste incineration, realizes that kitchen garbage innoxious, resourceful treatment avoid causing harm to environment and human body. Because heat pump compressor's heat utilization efficiency is higher, consequently, in the high temperature stoving stage of kitchen garbage processing, adopt the heat pump to provide the heat, it is the most effective energy-conserving scheme on the market at present stage to dry kitchen garbage in the fermentation storehouse, but the most fixed power work that adopts of heat pump of current rubbish drying system also does not monitor the environment in rubbish drying system's the fermentation storehouse, can't realize accurate control to the control by temperature change of whole high temperature stoving process, lead to the heat pump utilization efficiency low.
Disclosure of Invention
The invention solves the problem of how to provide an intelligent garbage drying control system which can monitor the drying process information and intelligently adjust the output power of a heat pump.
In order to solve the above problems, the present invention provides an intelligent control system for multi-effect high-temperature overlapping type drying of garbage, comprising: the heat pump compressor motor drying device comprises a main control module, a power supply module, a heat pump compressor driving module, a drying detection module and a compressor detection module, wherein a controlled end of the heat pump compressor driving module is connected with an output end of the main control module, an input end of the heat pump compressor driving module is connected with an output end of the power supply module, an output end of the heat pump compressor driving module is suitable for being connected with the heat pump compressor motor, so that the output power of the heat pump compressor motor is controlled according to an instruction of the main control module, the drying detection module is connected with the main control module and used for transmitting detected drying environment information to the main control module, and the compressor detection module is connected with the main control module and used for transmitting detected working state information of the heat pump compressor motor to the main control module.
Further, the heat pump compressor driving module comprises a buffer circuit, a grid driving circuit and a bridge driving circuit, wherein the input end of the buffer circuit is connected with the PWM input end of the main control module, the output end of the buffer circuit is connected with the input end of the grid driving circuit, the output end of the grid driving circuit is connected with the controlled end of the bridge driving circuit, the input end of the bridge driving circuit is connected with the output end of the power supply module, and the output end of the bridge driving circuit is suitable for being connected with the heat pump compressor motor.
Furthermore, the gate drive circuit comprises three groups of gate drivers, the bridge drive circuit comprises three groups of half-bridge drive circuits, the controlled end of each half-bridge drive circuit is connected with the output end of one group of gate drivers, and the output end of each half-bridge drive circuit is connected with one wiring terminal of the heat pump compressor motor.
Furthermore, the half-bridge driving circuit comprises a first IGBT tube and a second IGBT tube, the grids of the first IGBT tube and the second IGBT tube are respectively connected with two opposite level output ends of the grid driver, the collector electrode of the first IGBT tube is connected with the power supply module, the emitter electrode is connected with the wiring terminal of the heat pump compressor motor, the collector electrode of the second IGBT tube is connected with the wiring terminal of the heat pump compressor motor, and the emitter electrode is grounded.
Further, the compressor detection module comprises a compressor voltage detection circuit and a compressor current detection circuit, the compressor voltage detection circuit is connected with the main control module and used for transmitting the detected voltage information of the heat pump compressor to the main control module, and the compressor current detection circuit is connected with the main control module and used for transmitting the detected current information of the heat pump compressor to the main control module.
Furthermore, the intelligent control system also comprises a peripheral control module, wherein the peripheral control module comprises an ultraviolet lamp driving circuit, a metal induction circuit and an electromagnet switch control circuit, the controlled end of the ultraviolet lamp driving circuit is connected with the main control module, the input end of the ultraviolet lamp driving circuit is connected with the power supply module, and the output end of the ultraviolet lamp driving circuit is suitable for being connected with an ultraviolet lamp; the metal induction circuit is connected with the main control module and used for transmitting detected metal information in the garbage to the main control module, the controlled end of the electromagnet switch control circuit is connected with the main control module, and the output end of the electromagnet switch control circuit is connected with a power switch of the electromagnet.
Further, ultraviolet lamp drive circuit includes first triode, first relay, ultraviolet lamp driver chip, first diode and ultraviolet banks, the base of first triode with host system connects, collecting electrode ground connection, the projecting pole with the coil connection of first relay, the first end of the opening point of first relay with power module connects, the second end with ultraviolet lamp driver chip's input is connected, ultraviolet lamp driver chip's controlled end with host system's PWM output is connected, the output with ultraviolet diodes group connects, first diode is parallelly connected between ultraviolet lamp driver chip's input and the output.
Further, the power supply module comprises a first power supply circuit, a second power supply circuit and a voltage conversion circuit, wherein the input end of the first power supply circuit is suitable for being connected with an external power supply, and the output end of the first power supply circuit is connected with the input end of the heat pump compressor driving module; the input end of the second power supply circuit is suitable for being connected with the external power supply, and the output end of the second power supply circuit is connected with the peripheral control module; the input end and the output end of the voltage conversion circuit are connected, and the output end of the voltage conversion circuit is respectively connected with the main control module and the peripheral control module.
Further, the first power supply circuit comprises an input protection circuit, a first EMI circuit and a rectification output circuit, wherein an input end of the input protection circuit is suitable for being connected with an external power supply, an output end of the input protection circuit is connected with an input end of the first EMI circuit, and an output end of the first EMI circuit is connected with the heat pump compressor driving module through the rectification output circuit; the second power supply circuit comprises a second EMI circuit and a PFC voltage-stabilizing output circuit, the input end of the second EMI circuit is suitable for being connected with an external power supply, the output end of the second EMI circuit is connected with the voltage-stabilizing output circuit, and the output end of the voltage-stabilizing output circuit is connected with the voltage conversion circuit.
Further, the voltage stabilization output circuit comprises a rectification filter circuit, a first transformer, a PWM modulation chip, a chip power supply circuit, a chip voltage compensation circuit, a transformer driving switch, a primary current sampling circuit, an output voltage sampling circuit and an optical coupling isolation circuit, wherein the first transformer at least comprises 2 groups of primary windings and 2 groups of secondary windings, the input end of the rectification filter circuit is connected with the output end of the second EMI circuit, the output end of the rectification filter circuit is connected with the first end of the first primary winding of the first transformer, the second end of the first primary winding of the first transformer is grounded through the transformer driving switch, so that the first transformer works when the transformer driving switch is switched on, the controlled end of the transformer driving switch is connected with the PWM signal output end of the PWM modulation chip, the input end of the primary current sampling circuit is connected with the second secondary winding of the transformer driving switch, the output end of the primary current sampling circuit is connected with the current sampling end of the PWM modulation chip, the output end of the primary winding of the first transformer is connected with the voltage conversion circuit, the input end of the output voltage sampling circuit is connected with the second secondary winding of the first transformer, the output end of the output voltage sampling circuit is connected with the voltage sampling end of the PWM modulation chip through the optical coupling isolation circuit, and the oscillation circuit is connected with the PWM modulation chip.
Compared with the prior art, the invention has the beneficial effects that:
when the device is used, the main control module sends a control signal to the heat pump compressor driving module, the heat pump compressor motor is controlled to operate and the output power of the heat pump compressor motor is adjusted through the heat pump compressor driving module, the power supply module provides working power for the heat pump compressor motor through the heat pump compressor driving module, the heat pump compressor motor works and starts to dry kitchen waste in the fermentation bin, in the drying process, the drying detection module detects environmental information such as temperature and air humidity in the fermentation bin and transmits the environmental information to the main control module, the compressor detection module detects motor working state information such as voltage and current of the heat pump compressor motor and transmits the motor working state information to the main control module, when the main control module confirms that the output of the heat pump needs to be adjusted according to the environmental information, the control signal is sent to the heat pump compressor driving module to adjust the power of the heat pump compressor motor, meanwhile, the main control ensures that the heat pump compressor motor reaches the required output power according to the motor working state information, the heat pump output is accurately controlled according to the drying process, the accurate control of the whole high-temperature drying process is achieved, the effective output of the heat pump is maintained, and the utilization rate is improved.
Drawings
FIG. 1 is a schematic overall schematic structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a first portion of a heat pump compressor drive module according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a second portion of a heat pump compressor driving module according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a compressor current detection circuit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a compressor voltage detection circuit according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a metal sensing circuit according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the electromagnet switch control circuit according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of an exemplary UV lamp driver circuit according to the present invention;
FIG. 9 is a schematic diagram of a first power supply circuit according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a second power supply circuit according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a voltage conversion circuit according to an embodiment of the present invention.
Description of reference numerals:
1-a main control module; 2-a power supply module; 211-input protection circuit; 212 — first EMI circuit; 213-a rectified output circuit; 220-a second EMI circuit; 221-primary current sampling circuit; 222-a rectifying and filtering circuit; 223-a first transformer; 224-PWM modulation chip; 225-chip power supply circuit; 226-chip voltage compensation circuit; 227-transformer drive switch; 228-an output voltage sampling circuit; 229-optocoupler isolation circuitry; 3-heat pump compressor driving module; 3-heat pump compressor driving module; 31-a buffer circuit; 32-gate drive circuit; 33-a bridge driver circuit; 4-heat pump compressor motor; 5-drying the detection module; 6-a compressor detection module; .
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the terms "an embodiment," "one embodiment," and "one implementation," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or implementation is included in at least one embodiment or example implementation of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.
As shown in fig. 1, the present invention provides an intelligent control system for multi-effect high-temperature overlapping drying of garbage, comprising: host system 1, power module 2, heat pump compressor drive module 33, stoving detection module 5 and compressor detection module 6, heat pump compressor drive module 33 the controlled end with host system 1's output is connected, the input with power module 2's output is connected, and the output is suitable for and connects heat pump compressor motor 4, with the basis host system 1's instruction, control heat pump compressor motor 4's output, stoving detection module 5 with host system 1 connects for give with the stoving environmental information that detects host system 1, compressor detection module 6 with host system 1 connects for with the operating condition information transfer that detects heat pump compressor motor 4 gives host system 1.
It should be noted that, when in use, the main control module 1 sends a control signal to the heat pump compressor driving module 33, the heat pump compressor driving module 33 controls the heat pump compressor motor 4 to operate and adjust the output power of the heat pump compressor motor 4, the power supply module 2 provides working power for the heat pump compressor motor 4 through the heat pump compressor driving module 33, the heat pump compressor motor 4 operates to start drying kitchen waste in the fermentation chamber, during the drying process, the drying detection module 5 detects environmental information such as temperature and air humidity in the fermentation chamber and transmits the environmental information to the main control module 1, the compressor detection module 6 detects motor operating state information such as voltage and current of the heat pump compressor motor 4 and transmits the motor operating state information to the main control module 1, when the main control module 1 confirms that the output of the heat pump needs to be adjusted according to the environmental information, the control signal is sent to the heat pump compressor driving module 33 to adjust the power of the heat pump compressor motor 4, meanwhile, the main control module 1 ensures that the heat pump compressor motor 4 reaches the required output power according to the motor operating state information, thereby accurately controlling the heat pump output according to the heat pump compressor 33 when the temperature in the drying process is low and high temperature of the heat pump compressor is set, thereby realizing the high temperature of the drying process, and high temperature of the drying process is controlled by the heat pump compressor 33, and high temperature of the heat pump compressor 33, thereby realizing the high temperature of the drying process, the unstable condition of stoving temperature, when master control module 1 confirms through compressor detection module 6 that the air moisture in the fermentation storehouse reduces to setting for the threshold value, master control module 1 reduces the output through heat pump compressor drive module 33 control heat pump, get into low temperature stoving, with the saving electric energy, improve heat pump output availability factor, and through the aforesaid mode, realize the accurate control to whole high temperature stoving process, maintain the effective output of heat pump, improve heat pump utilization factor, through compressor detection module 6, master control module 1 still can in time discover the voltage of heat pump compressor motor 4 in service, the current abnormal conditions, in time protect heat pump compressor motor 4.
It can be understood that the intelligent control system of this embodiment may further include a fan driving module connected to the main control module 1, an output end of the fan driving module is connected to the fan, the main control module 1 controls the fan to operate while drying, and the drying process is accelerated by air flow.
In this embodiment, the main control module 1 may adopt a single chip microcomputer chip of the model TMS320F2812, the TMS320F2812 kernel adopts a Harvard architecture, provides an on-chip program memory, a data memory and an arithmetic unit, is externally provided with an a/D conversion large-capacity memory, a timer comparison unit of l6 bits and 32 bits, a capture unit, a PWM waveform generator, a high-speed asynchronous and synchronous serial port, an independent programmable multiplexing I/O, and the like, and can generate a PWM output of up to l2 channels, which is enough to meet the control requirement; the drying detection module 5 can be in a fermentation bin, the drying detection module 5 comprises a temperature sensor and a humidity sensor, the temperature sensor can be PT1000, the humidity sensor can be HDC1000YPAR, and other main control chips and sensor models capable of realizing the functions of the embodiment also fall within the protection scope of the invention.
In an embodiment of the present invention, the heat pump compressor driving module 33 includes a buffer circuit 31, a gate driving circuit 32, and a bridge driving circuit 33, an input end of the buffer circuit 31 is connected to the PWM input end of the main control module 1, an output end of the buffer circuit is connected to an input end of the gate driving circuit 32, an output end of the gate driving circuit 32 is connected to a controlled end of the bridge driving circuit 33, an input end of the bridge driving circuit 33 is connected to an output end of the power module 2, and an output end of the bridge driving circuit 33 is adapted to be connected to the heat pump compressor motor 4.
It should be noted that, as shown in fig. 2, the buffer circuit 31 is configured to buffer and isolate the PWM control signal sent by the main control module 1, so as to improve the anti-interference capability and accuracy of the PWM control signal, ensure the accuracy of the PWM control signal received by the gate driving circuit 32, and further stably control the gate control tube in the bridge driving circuit 33, so as to stably regulate the output of the heat pump compressor motor 4, and the buffer circuit 31 may adopt a buffer with a model number of SN74LVC541AQPWRQ 1.
In an embodiment of the present invention, the gate driving circuit 32 includes three sets of gate drivers, and the bridge driving circuit 33 includes three sets of half-bridge driving circuits, a controlled terminal of each half-bridge driving circuit is connected to an output terminal of one set of gate drivers, and an output terminal of each half-bridge driving circuit is connected to a connection terminal of the heat pump compressor motor 4.
It should be noted that, as shown in fig. 2 and 3, the output terminals of the three-way half-bridge driving circuits are respectively connected to the three-phase connection terminals of the heat pump compressor motor 4, and the gate driving circuit 32 sends a control signal to the three-way half-bridge driving circuits under the control of the main control module 1, assuming that the three-phase connection terminals of the heat pump compressor motor 4 are U, V, W terminals, at the same time, one of the terminals is connected to the power supply and the other terminal is grounded, so that the two-phase windings of the heat pump compressor motor 4 are energized and switched at an interval of 120 degrees, and the rotation of the motor is controlled, for example, the U terminal is grounded, the V terminal is switched to the V terminal ground, the W terminal is connected to the power supply, and then switched to the W terminal ground, the U terminal is connected to the power supply, and the cycle is performed at an interval of 120 degrees.
In an embodiment of the present invention, the half-bridge driving circuit includes a first IGBT tube and a second IGBT tube, gates of the first IGBT tube and the second IGBT tube are respectively connected to two opposite level output ends of the gate driver, a collector of the first IGBT tube is connected to the power module 2, an emitter of the first IGBT tube is connected to a connection terminal of the heat pump compressor motor 4, a collector of the second IGBT tube is connected to a connection terminal of the heat pump compressor motor 4, and an emitter of the second IGBT tube is grounded.
It should be noted that, as shown in fig. 3, a first set of half-bridge driving circuits is used for describing that gates of a first IGBT tube Q6 and a second IGBT tube Q9 are respectively connected to two opposite level output ends of a gate driver U44, when the gate driver U44 outputs under the control of 2 paths of PWM signals of the main control module 1, level signals received by the first IGBT tube Q6 and the second IGBT tube Q9 are opposite, so that a situation that a power supply is short-circuited when the first IGBT tube Q6 and the second IGBT tube Q9 receive a high level and turn on at the same time is avoided, when the first IGBT tube Q6 receives a high level and the second IGBT tube Q9 receives a low level and turn off, a connection terminal of the heat pump compressor motor 4 is assumed to be a U terminal, and at this time, the U terminal is connected to the power supply, and when the first IGBT tube Q6 receives a low level and the second IGBT tube Q9 receives a high level and turns on, the U terminal is grounded, so that the control of the U terminal is achieved; the second and third groups of half-bridge driving circuits respectively comprise IGBT tubes Q7 and Q10 and IGBT tubes Q8 and Q11, the structural principle of the second and third groups of half-bridge driving circuits is the same as that of the first group of half-bridge driving circuits, so that the rotation control of the heat pump compressor motor 4 is realized, when the main control module 1 changes the duty ratio of a PWM signal to the grid driving circuit 32, the grid driving circuit 32 changes the conduction angle of the IGBT tubes in the half-bridge driving circuits, and the current passing through the winding of the heat pump compressor motor 4 can be changed, so that the accurate control of the output power of the heat pump compressor motor 4 is realized; the model of the gate driver can adopt UCC27712QDRQ1, and the model of the first IGBT tube and the model of the second IGBT tube can adopt IXYP715N65C3D1.
In an embodiment of the present invention, the compressor detection module 6 includes a compressor voltage detection circuit and a compressor current detection circuit, the compressor voltage detection circuit is connected to the main control module 1 and is configured to transmit the detected voltage information of the heat pump compressor to the main control module 1, and the compressor current detection circuit is connected to the main control module 1 and is configured to transmit the detected current information of the heat pump compressor to the main control module 1.
It should be noted that, as shown in fig. 5, each connection terminal of the heat pump compressor motor 4 is connected to a compressor voltage detection circuit, the compressor voltage detection circuit collects each phase voltage of the heat pump compressor motor 4 by adopting a resistance voltage division manner and transmits the phase voltage to the main control module 1, and the resistors R163, R164, R165, and R172 are voltage division resistors; a current transformer can be arranged at a connection cable of each connection terminal of the heat pump compressor motor 4, the output of the current transformer is transmitted to the main control module 1 through a compressor current detection circuit, and the compressor current detection circuit is shown in fig. 4, and an operational amplifier U28 can be adopted to amplify and convert the acquired current signal and then output the current signal to the main control module 1; through the stable detection to the voltage and the electric current of heat pump compressor motor 4, main control module 1 can accurately master heat pump compressor motor 4 output power, and then according to the accurate control heat pump output of stoving process, and the unusual circumstances of voltage, electric current in heat pump compressor motor 4 operation simultaneously also can in time discover to handle.
In an embodiment of the present invention, the intelligent control system further includes a peripheral control module, the peripheral control module includes an ultraviolet lamp driving circuit, a metal induction circuit and an electromagnet switch control circuit, a controlled end of the ultraviolet lamp driving circuit is connected with the main control module 1, an input end is connected with the power module 2, and an output end is adapted to be connected with an ultraviolet lamp; the metal induction circuit is connected with the main control module 1 and used for transmitting detected metal information in the garbage to the main control module 1, the controlled end of the electromagnet switch control circuit is connected with the main control module 1, and the output end of the electromagnet switch control circuit is connected with a power switch of the electromagnet.
It should be noted that the metal induction circuit can induce whether metal objects exist in the garbage or not when the garbage is dried, and transmit induction information to the main control module 1, the electromagnet is arranged at the discharge port of the fermentation box, if metal objects exist in the garbage, the main control module 1 can control the electromagnet to work to absorb the metal objects, so that the metal garbage can be recycled, and the influence of the metal objects on the subsequent crushing or burning treatment of the garbage can be avoided; as shown in fig. 6, the metal sensing circuit is a metal sensor, L1 is a metal sensor, a metal signal sensed by the metal sensor is amplified by a triode Q1 and then input to an input end of a first follower composed of an operational amplifier U1, an output end of the first follower is connected with the main control module 1, and the first follower can perform signal isolation, so that the detection accuracy is improved; as shown in fig. 7, the electromagnet switch control circuit controls the attraction of the relay K5 by the main control module 1, so as to control the switch of the electromagnet power supply and realize the attraction of metal objects in the garbage; the ultraviolet lamp driving circuit is used for carrying out ultraviolet sterilization and deodorization on the dried garbage, and reducing peculiar smell emitted by organic matters in the garbage.
In an embodiment of the present invention, the ultraviolet lamp driving circuit includes a first triode, a first relay, an ultraviolet lamp driving chip, a first diode, and an ultraviolet lamp set, a base of the first triode is connected to the main control module 1, a collector is grounded, an emitter is connected to a coil of the first relay, a first end of an on point of the first relay is connected to the power module 2, a second end of the first relay is connected to an input end of the ultraviolet lamp driving chip, a controlled end of the ultraviolet lamp driving chip is connected to a PWM output end of the main control module 1, an output end of the ultraviolet lamp driving chip is connected to the ultraviolet lamp set, and the first diode is connected in parallel between the input end and the output end of the ultraviolet lamp driving chip.
It should be noted that, as shown in fig. 8, the main control module 1 sends a switch signal, the first triode Q24 is turned on, so that the first relay K1 is actuated, the power module 2 supplies power to the ultraviolet lamp driving chip U53, the ultraviolet lamp driving chip U53 outputs voltage to the ultraviolet lamp set LD1, so that the ultraviolet lamp set LD1 operates, the first diode D92 is connected in parallel between the input end and the output end of the ultraviolet lamp driving chip, so as to prevent the output of the ultraviolet lamp driving chip U53 from being too high, and protect the ultraviolet lamp set LD1, meanwhile, the 6 pins of the ultraviolet lamp driving chip U53 are connected with the PWM output end of the main control module 1, so that the output of the ultraviolet lamp set LD1 can be changed under the control of the PWM signal of the main control module 1, and further the brightness of the ultraviolet lamp set LD1 can be changed.
In one embodiment of the present invention, the power module 2 includes a first power supply circuit, a second power supply circuit and a voltage conversion circuit, wherein an input end of the first power supply circuit is suitable for being connected with an external power supply, and an output end of the first power supply circuit is connected with an input end of the heat pump compressor driving module 33; the input end of the second power supply circuit is suitable for being connected with the external power supply, and the output end of the second power supply circuit is connected with the peripheral control module; the input end and the output end of the voltage conversion circuit are connected, and the output end of the voltage conversion circuit is respectively connected with the main control module 1 and the peripheral control module.
It should be noted that, in this embodiment, since the heat pump compressor driving module 33 drives the heat pump compressor motor 4, high-voltage power supply is required, and low-voltage power supply is required for other parts, the power module 2 adopts a shunt power supply manner, thereby avoiding mutual influence between high-voltage and low-voltage power supplies, ensuring stability of power supply, and avoiding high-voltage fluctuation when the heat pump compressor motor 4 operates, which causes power supply fluctuation of the main control module 1 and affects accuracy of control of the drying process.
In one embodiment of the present invention, the first power supply circuit includes an input protection circuit 211, a first EMI circuit 212, and a rectification output circuit 213, an input end of the input protection circuit 211 is adapted to be connected to an external power source, an output end of the input protection circuit is connected to an input end of the first EMI circuit 212, and an output end of the first EMI circuit 212 is connected to the heat pump compressor driving module 33 through the rectification output circuit 213; the second power supply circuit comprises a second EMI circuit 220 and a PFC voltage-stabilizing output circuit, wherein the input end of the second EMI circuit 220 is suitable for being connected with an external power supply, the output end of the second EMI circuit is connected with the voltage-stabilizing output circuit, and the output end of the voltage-stabilizing output circuit is connected with the voltage conversion circuit.
It should be noted that, the first power supply circuit is shown in fig. 9, the input protection circuit 211 includes a fuse F1 and a varistor RV1, and can perform overcurrent and overvoltage protection, the first EMI circuit 212 adopts a combination of a common mode inductor L5 and a surrounding capacitor to avoid interference of the first power supply circuit to surrounding electricity, and the rectification output circuit 213 can rectify and boost an input voltage and then output a high voltage of 310V for use by the heat pump compressor driving module 33; in the second power supply circuit, the second EMI circuit 220 is used to avoid the interference of the second power supply circuit to the surrounding electrical, and the voltage stabilizing output circuit can stably output 24V low voltage, as shown in fig. 11, the voltage conversion circuit adopts the voltage conversion chips U23 and U25 with model number TPS54360, and converts the 24V output of the voltage stabilizing output circuit into 12V and 5V voltages for the use of the chips and relays in the main control module 1 and the peripheral control module, wherein the first EMI circuit 212 and the second EMI circuit 220 are mutually matched, so that the mutual interference signals in the high and low voltage power supply circuits can be reduced, the stability of the high and low voltage power supply is ensured, and further, the accurate control of the drying process is realized.
In an embodiment of the present invention, the voltage stabilizing output circuit includes a rectifying and filtering circuit 222, a first transformer 223, a PWM modulation chip, a chip power supply circuit 225, a chip voltage compensation circuit 226, a transformer driving switch 227, a primary current sampling circuit 221, an output voltage sampling circuit 228, and an optical coupling and isolating circuit 229, the first transformer 223 includes at least 2 sets of primary windings and 2 sets of secondary windings, an input end of the rectifying and filtering circuit 222 is connected to an output end of the second EMI circuit 220, an output end of the rectifying and filtering circuit is connected to a first end of a first primary winding of the first transformer 223, a second end of the first primary winding of the first transformer 223 is grounded via the transformer driving switch 227, so that the first transformer 223 works when the transformer driving switch 227 is turned on, a controlled end of the transformer driving switch 227 is connected to a PWM signal output end of the PWM modulation chip, the power supply end of the PWM modulation chip is connected to the output end of the rectifying and filtering circuit 222 through the chip power supply circuit 225, the input end of the chip voltage compensation circuit 226 is connected to the second primary winding of the first transformer 223, the output end is connected to the power supply end of the PWM modulation chip, so as to ensure the working power supply of the PWM modulation chip to be stable, the input end of the primary current sampling circuit 221 is connected to the second end of the transformer driving switch 227, the output end is connected to the current sampling end of the PWM modulation chip, the output end of the first secondary winding of the first transformer 223 is connected to the voltage converting circuit, the input end of the output voltage sampling circuit 228 is connected to the second secondary winding of the first transformer 223, and the output end is connected to the voltage sampling end of the PWM modulation chip through the optocoupler isolation circuit 229, the oscillating circuit is connected with the PWM modulation chip.
It should be noted that, as shown in fig. 10, the first transformer 223 is used for converting and outputting voltage, when in use, after external alternating current is rectified and filtered, the output end of the rectification filter circuit 222 supplies power to the first end of the first primary winding of the first transformer 223, meanwhile, the power end of the PWM modulation chip is connected to the output end of the rectification filter circuit 222, the PWM modulation chip is powered on to work, and sends a PWM modulation signal to the transformer driving switch 227 to control the driving switch to be turned on, in this embodiment, the transformer is driven as a MOS transistor Q5, the second end of the first primary winding of the first transformer 223 is grounded through the MOS transistor Q5, at this time, the two ends of the first primary winding of the first transformer 223 are powered on to work, the first and second secondary windings of the first transformer 223 generate output, the first secondary winding of the first transformer 223 is used for supplying power to subsequent output, the output voltage sampling circuit 228 collects the output voltage of the second secondary winding of the first transformer 223 and transmits the output voltage back to the PWM modulation chip through the optical coupling isolation circuit 229, the PWM modulation chip adjusts the duty ratio of the PWM modulation signal sent to the transformer driving switch 227 according to the output condition, so as to adjust the input voltage of the first primary winding of the first transformer 223, further make the output of the first secondary winding of the first transformer 223 accurately stabilized at the set voltage value, such as 24V in fig. 10, the voltage sampling collects the second secondary winding, thereby avoiding the influence of voltage fluctuation generated by the load on the subsequent output of the first secondary winding, ensuring the stability of the sampling, so as to stabilize the voltage output of the voltage stabilizing output circuit, further ensuring the stable control of the main control module 1 on the drying process, the PWM modulation chip can also collect the input current through the primary current sampling circuit 221, and judge the output condition of the load, when the first transformer 223 works, the voltage at the output end of the rectifying and filtering circuit 222 may drop, and when the first primary winding of the first transformer 223 is powered on, the second primary winding of the first transformer 223 may also generate a corresponding voltage, and the chip voltage compensation circuit 226 may enable the second primary winding of the first transformer 223 to perform output compensation on the PWM modulation chip when the transformer works, so as to ensure that the voltage at the power supply end of the PWM modulation chip is stabilized within the working voltage range, thereby ensuring stable power supply of the first power supply circuit, wherein the model of the PWM modulation chip may adopt UC3843M. Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. The utility model provides an intelligence control system that is used for rubbish multiple-effect high temperature to cover formula stoving, its characterized in that includes: the heat pump compressor driving device comprises a main control module (1), a power supply module (2), a heat pump compressor driving module (3) (3), a drying detection module (5) and a compressor detection module (6), wherein a controlled end of the heat pump compressor driving module (3) (3) is connected with an output end of the main control module (1), an input end of the heat pump compressor driving module is connected with an output end of the power supply module (2), an output end of the heat pump compressor driving module is suitable for being connected with a heat pump compressor motor (4), so that the output power of the heat pump compressor motor (4) can be controlled according to an instruction of the main control module (1), the drying detection module (5) is connected with the main control module (1) and used for transmitting detected drying environment information to the main control module (1), and the compressor detection module (6) is connected with the main control module (1) and used for transmitting detected working state information of the heat pump compressor motor (4) to the main control module (1).
2. The intelligent control system for multi-effect high-temperature overlapped drying of garbage according to claim 1, wherein the heat pump compressor driving module (3) (3) comprises a buffer circuit (31), a grid driving circuit (32) and a bridge driving circuit (33), wherein an input end of the buffer circuit (31) is connected with a PWM input end of the main control module (1), an output end of the buffer circuit is connected with an input end of the grid driving circuit (32), an output end of the grid driving circuit (32) is connected with a controlled end of the bridge driving circuit (33), an input end of the bridge driving circuit (33) is connected with an output end of the power module (2), and an output end of the bridge driving circuit is suitable for being connected with the heat pump compressor motor (4).
3. The intelligent control system for multi-effect high-temperature overlapped drying of garbage according to claim 2, wherein the grid driving circuit (32) comprises three groups of grid drivers, the bridge driving circuit (33) comprises three groups of half-bridge driving circuits, the controlled end of each half-bridge driving circuit is connected with the output end of one group of grid drivers, and the output end of each half-bridge driving circuit is connected with one connecting terminal of the heat pump compressor motor (4).
4. The intelligent control system for multi-effect high-temperature overlapped drying of garbage according to claim 3, wherein the half-bridge driving circuit comprises a first IGBT (insulated gate bipolar transistor) tube and a second IGBT tube, grids of the first IGBT tube and the second IGBT tube are respectively connected with two opposite level output ends of the grid driver, a collector electrode of the first IGBT tube is connected with the power module (2), an emitter electrode of the first IGBT tube is connected with a wiring terminal of the heat pump compressor motor (4), a collector electrode of the second IGBT tube is connected with a wiring terminal of the heat pump compressor motor (4), and the emitter electrode of the second IGBT tube is grounded.
5. The intelligent control system for multi-effect high-temperature overlapped drying of garbage according to claim 1, wherein the compressor detection module (6) comprises a compressor voltage detection circuit and a compressor current detection circuit, the compressor voltage detection circuit is connected with the main control module (1) and is used for transmitting the detected voltage information of the heat pump compressor to the main control module (1), and the compressor current detection circuit is connected with the main control module (1) and is used for transmitting the detected current information of the heat pump compressor to the main control module (1).
6. The intelligent control system for multi-effect high-temperature overlapped drying of garbage according to claim 1, further comprising a peripheral control module, wherein the peripheral control module comprises an ultraviolet lamp driving circuit, a metal induction circuit and an electromagnet switch control circuit, a controlled end of the ultraviolet lamp driving circuit is connected with the main control module (1), an input end of the ultraviolet lamp driving circuit is connected with the power supply module (2), and an output end of the ultraviolet lamp driving circuit is suitable for being connected with an ultraviolet lamp; the metal induction circuit is connected with the main control module (1) and used for transmitting detected metal information in the garbage to the main control module (1), the controlled end of the electromagnet switch control circuit is connected with the main control module (1), and the output end of the electromagnet switch control circuit is connected with a power switch of the electromagnet.
7. The intelligent control system for multi-effect high-temperature overlapped drying of garbage according to claim 6, wherein the ultraviolet lamp driving circuit comprises a first triode, a first relay, an ultraviolet lamp driving chip, a first diode and an ultraviolet lamp set, wherein a base of the first triode is connected with the main control module (1), a collector of the first triode is grounded, an emitter of the first triode is connected with a coil of the first relay, a first end of an opening point of the first relay is connected with the power module (2), a second end of the opening point of the first relay is connected with an input end of the ultraviolet lamp driving chip, a controlled end of the ultraviolet lamp driving chip is connected with a PWM output end of the main control module (1), an output end of the ultraviolet lamp driving chip is connected with the ultraviolet lamp set, and the first diode is connected between the input end and the output end of the ultraviolet lamp driving chip in parallel.
8. The intelligent control system for multi-effect high-temperature overlapped drying of garbage according to claim 7, wherein the power supply module (2) comprises a first power supply circuit, a second power supply circuit and a voltage conversion circuit, wherein the input end of the first power supply circuit is suitable for being connected with an external power supply, and the output end of the first power supply circuit is connected with the input end of the heat pump compressor driving module (3) (3); the input end of the second power supply circuit is suitable for being connected with the external power supply, and the output end of the second power supply circuit is connected with the peripheral control module; the input end and the output end of the voltage conversion circuit are connected, and the output end of the voltage conversion circuit is respectively connected with the main control module (1) and the peripheral control module.
9. The intelligent control system for multi-effect high-temperature garbage overlaying drying according to claim 8, wherein the first power supply circuit comprises an input protection circuit (211), a first EMI circuit (212) and a rectification output circuit (213), wherein the input end of the input protection circuit (211) is suitable for being connected with an external power supply, the output end of the input protection circuit is connected with the input end of the first EMI circuit (212), and the output end of the first EMI circuit (212) is connected with the heat pump compressor driving module (3) (3) through the rectification output circuit (213); the second power supply circuit comprises a second EMI circuit (220) and a PFC voltage-stabilizing output circuit, wherein the input end of the second EMI circuit (220) is suitable for being connected with an external power supply, the output end of the second EMI circuit is connected with the voltage-stabilizing output circuit, and the output end of the voltage-stabilizing output circuit is connected with the voltage conversion circuit.
10. The intelligent control system for multi-effect high-temperature overlapped drying of garbage according to claim 9, wherein the voltage-stabilizing output circuit comprises a rectifying and filtering circuit (222), a first transformer (223), a PWM modulation chip, a chip power supply circuit (225), a chip voltage compensation circuit (226), a transformer driving switch (227), a primary current sampling circuit (221), an output voltage sampling circuit (228) and an optical coupling and isolating circuit (229), the first transformer (223) at least comprises 2 groups of primary windings and 2 groups of secondary windings, the input end of the rectifying and filtering circuit (222) is connected with the output end of the second EMI circuit (220), the output end of the rectifying and filtering circuit is connected with the first end of the first primary winding of the first transformer (223), the second end of the first primary winding of the first transformer (223) is grounded through the transformer driving switch (227) so that the first transformer (223) works when the transformer driving switch (227) is switched on, the controlled end of the transformer driving switch (227) is connected with the PWM signal output end of the PWM modulation chip, the power supply end of the PWM modulation chip is connected with the output end of the rectifying and filtering circuit (222) through the chip power supply circuit (225), the input end of the chip voltage compensation circuit (226) is connected with the second primary winding of the first transformer (223), and the output end of the chip voltage compensation circuit is connected with the power supply end of the PWM modulation chip, in order to guarantee PWM modulation chip's working power supply is stable, the input of primary current sampling circuit (221) with transformer drive switch (227) second end is connected, the output with PWM modulation chip's current sampling end is connected, the output of the first secondary winding of first transformer (223) with voltage conversion circuit connects, the input of output voltage sampling circuit (228) with the second secondary winding of first transformer (223) is connected, the output warp opto-coupler isolation circuit (229) with PWM modulation chip's voltage sampling end is connected, oscillation circuit with PWM modulation chip connects.
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Cited By (1)
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Application publication date: 20230103 |