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CN116181608B - A photoelectric conversion enhancement and equipment protection system - Google Patents

A photoelectric conversion enhancement and equipment protection system Download PDF

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Publication number
CN116181608B
CN116181608B CN202310116433.2A CN202310116433A CN116181608B CN 116181608 B CN116181608 B CN 116181608B CN 202310116433 A CN202310116433 A CN 202310116433A CN 116181608 B CN116181608 B CN 116181608B
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China
Prior art keywords
oil
gas
compressor
refrigerant
photovoltaic
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CN202310116433.2A
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Chinese (zh)
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CN116181608A (en
Inventor
刘恩海
白彪财
陈建芳
许霞
陈庚阳
祁彪
郑琪凡
张瑞峰
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Changzhou University
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Changzhou University
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/425—Horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/02—Lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/66—Regulating electric power
    • G05F1/67—Regulating electric power to the maximum power available from a generator, e.g. from solar cell
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Radar, Positioning & Navigation (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Electromagnetism (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention relates to the technical field of photovoltaic power generation, in particular to a photoelectric conversion lifting and equipment protecting system which comprises a photovoltaic power generation system, a vapor compression refrigerating system, a biomass energy turbine system and a compressor temporary power-off protecting system, wherein the photovoltaic power generation system and the biomass energy turbine system are connected with each other to supply power to the vapor compression refrigerating system, the vapor compression refrigerating system is connected with the compressor temporary power-off protecting system, the photovoltaic part of the whole system can utilize sunlight more efficiently through the regulation and control of two intelligent modules, and the whole system can be adjusted more quickly when illumination changes so as to work around the maximum power all the time.

Description

Photoelectric conversion lifting and equipment protecting system
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to a photoelectric conversion lifting and equipment protecting system.
Background
With the progress of technology, a large number of refrigerators are applied to life, and national policies also support the development and application of photovoltaic technology. A complete refrigeration house contains many devices in which the oil-gas separator mainly filters the lubricating oil and the refrigerant gas, but the existing oil-gas separator has some drawbacks such as secondary mixing after separation, insufficient filtration of small oil droplet molecules, and so on, so some improvements are made in structure to improve the filtration efficiency. The heat exchanger can make refrigerant gas obtain a certain degree of superheat and refrigerant liquid obtain a certain degree of supercooling by exchanging heat, and when two fluids flow, a boundary layer can be formed, so that the heat exchange efficiency can be reduced, and the problems of insufficient convection heat exchange of two-phase fluid and the like can be solved through a special heat exchange pipeline. The compressor is the "heart" of freezer, and is very important in the refrigeration, but because face the problem of sudden outage, the internal pressure of compressor is very big during the compression, and sudden outage can cause the injury to the compressor. The power of photovoltaic power generation is always the direction of many people to research, because the intensity of solar radiation is unstable, the maximum power is not well maintained, the maximum power tracking method comprises a constant voltage method, an electricity increasing and conducting method, a disturbance observation method and the like, the advantages of the methods are obvious, the defects are obvious at the same time, and the problems of the defects are complemented by other methods through utilizing the advantages of a certain method, so that a better tracking effect is achieved.
Disclosure of Invention
The invention aims to solve the technical problem that the power of photovoltaic power generation is always the direction of researches of a plurality of people in the prior art, and the maximum power is not well maintained because of the instability of the intensity of solar radiation, and provides a photoelectric conversion lifting and equipment protecting system.
The technical scheme includes that the photovoltaic conversion lifting and equipment protecting system comprises a photovoltaic power generation system, a vapor compression refrigerating system, a biomass energy turbine system and a compressor temporary power-off protecting system, the photovoltaic power generation system and the biomass energy turbine system are connected in a grid mode and then supply power for the vapor compression refrigerating system, the vapor compression refrigerating system is connected with the compressor temporary power-off protecting system, photovoltaic parts of the whole system can be used for utilizing sunlight more efficiently through regulation and control of two intelligent modules, and adjustment can be made more quickly when illumination changes, so that the whole system always works near maximum power.
The photovoltaic power generation system further comprises a photovoltaic panel and an inverter, the photovoltaic panel is electrically connected with the inverter, photons absorbed by the solar panel are converted into direct current by the photovoltaic panel through a photovoltaic maximum power tracking system, and the direct current generated by the photovoltaic panel is converted into alternating current by the inverter and then is connected with the biomass turbine system after being connected with the vapor compression refrigeration system.
The photovoltaic maximum power tracking system comprises a frame, a cooling water atomization cooling device, a double-shaft rotating device, a photosensitive sensor, a maximum power tracking module, a maximum illumination radiation tracking module and a cooling water atomization cooling device, wherein the photovoltaic maximum power tracking system is arranged on the photovoltaic panel and is connected with the frame in a rotating mode, the photosensitive sensor and the cooling water atomization cooling device are arranged on the photovoltaic panel, and the cooling water atomization cooling device, the maximum power tracking module and the maximum illumination radiation tracking module are arranged on the frame.
The vapor compression refrigeration system further comprises an evaporator, a heat exchanger, a liquid storage device, a compressor and an oil-gas separator, wherein refrigerant liquid in the evaporator is evaporated to form refrigerant gas which flows into the heat exchanger, the refrigerant gas exchanges heat with the refrigerant liquid sent out by the liquid storage device and the cooling water of the photovoltaic panel through a gas disturbance device in the heat exchanger, the heat exchanger is connected with the compressor, the compressor is connected with the oil-gas separator, the oil-gas separator is connected with the condenser, and the oil-gas separator is connected with the compressor for recycling lubricating oil.
The temporary power-off protection system of the compressor further comprises a temporary refrigerant storage, an electronic valve V 2, a compressor power-off control module, an indicator light, a triode, a protection resistor R 1, a protection resistor R 2 and a capacitor, wherein the input end of the compressor is connected with the output end of the temporary refrigerant storage, the electronic valve V 2 is arranged between the output end of the compressor and the input end of the temporary refrigerant storage, and the electronic valve V 2 is arranged between the output end of the compressor and the input end of the oil-gas separator;
The left end of the capacitor is connected with the left end of the compressor power-off control module, the right end of the compressor power-off control module is connected with the right end of the protection resistor R 2, the left end of the capacitor is connected with the first pole of the triode, the second pole of the triode is connected with the right end of the capacitor and the left end of the protection resistor R 2, the third pole of the triode is connected with the left end of the indicator lamp, the right end of the indicator lamp is connected with the lower end of the protection resistor R 1, and the upper end of the protection resistor R 1 is connected with the right end of the protection resistor R 2.
The oil-gas separator further comprises an oil separator, a second gas disturbance device, an oil dropping hole, a semi-permeable membrane baffle, an oil collecting baffle, an oil drop collecting device, a gas mixture inlet and a lubricating oil outlet, wherein a gas mixture of lubricating oil and refrigerant enters from the gas mixture inlet, passes through the second gas disturbance device and blows to the oil collecting baffle, filters macromolecular oil drops, passes through the second gas disturbance device and the semi-permeable membrane baffle again, filters small molecular oil drops, drops the filtered oil drops into the oil drop collecting device through the oil dropping holes in sequence, and flows out from the lubricating oil outlet after collecting the oil drops, and the oil dropping hole is connected with the oil collecting baffle.
Further comprising a reservoir connected to the heat exchanger by a conduit, the refrigerant liquid of the conduit being fed to the heat exchanger by a centrifugal pump P 2, and an electronic valve V 7 controlling the flow of the refrigerant liquid of the conduit.
Further comprising a heat exchanger coupled to an electronic expansion valve that delivers refrigerant liquid to the evaporator via centrifugal pump P 1.
The heat exchanger further comprises a first gas disturbance device, a heat exchange tube, a shunt tube, an atomization water pipeline, a refrigerant gas inlet and a refrigerant gas outlet, wherein the refrigerant gas inlet is connected to the shunt tube, and the refrigerant gas blown out by the shunt tube flows out from the refrigerant gas outlet after passing through the gas bypass device and performing convective heat exchange with the atomization water pipeline and the heat exchange tube of the heat exchanger.
The invention has the beneficial effects that the invention provides a photoelectric conversion lifting and equipment protecting system, the maximum power tracking of photovoltaic power generation can obtain higher efficiency by parallel connection of two modes (a constant voltage method and a fuzzy control method), the temporary power-off protecting system of the compressor can be gradually stopped by discharging of a super capacitor, the heat exchange efficiency can be reduced by forming a boundary layer when a pipeline of a heat exchanger flows, the convection heat exchange of two-phase fluid is insufficient, and the like, and the heat exchange effect is improved by modifying a pipeline structure;
the photovoltaic part of the whole system can be regulated and controlled by two intelligent modules to utilize sunlight more efficiently, and can be regulated more quickly when illumination changes so that the whole system always works near the maximum power;
The oil separator improves the separation effect, the better the separation effect on lubricating oil is, the smaller the heat transfer effect on the vapor compression refrigeration system is, the higher the efficiency of the vapor compression refrigeration system is, the redesign and improvement on the heat exchanger pipeline are realized, the convection heat exchange effect is improved to a great extent, the safety problem of the refrigeration system in emergency can be fully protected by introducing the delay circuit, and the fastest response of staff can be realized by combining the reminding of the outage indicator lamp, so that the loss is reduced as much as possible.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a photovoltaic-biomass energy coupled freezer operation and a temporary compressor power-off protection system of the present invention;
FIG. 2 is a schematic view of the structure of a photovoltaic panel of the present invention;
FIG. 3 is a schematic view of the structure of the oil-gas separator of the present invention;
FIG. 4 is a schematic perspective view of an oil separator baffle according to the present invention;
FIG. 5 is a schematic perspective view of an airflow disturbance device according to the present invention;
FIG. 6 is a schematic perspective view of a weeping hole according to the present invention;
FIG. 7 is a schematic view of the heat exchanger of the present invention;
FIG. 8 is a schematic cross-sectional view of a heat exchanger shunt tube of the present invention;
fig. 9 is a schematic perspective view of an external shunt reinforcement perturbation component of the present invention;
fig. 10 is a schematic perspective view of an enhanced perturbation means within the shunt of the present invention;
FIG. 11 is a schematic illustration of the piping arrangement of the shunt extra-tubular reinforcement perturbation component of the present invention;
fig. 12 is a schematic cross-sectional layout of an enhanced perturbation means within a shunt of the present invention.
In the figure, 1, an evaporator, 2, a centrifugal pump P 1, 3 and an electronic expansion valve,
4. A heat exchanger, 4-1, a shunt pipe, 4-2, an atomization water pipeline, 4-3, a refrigerant gas inlet, 4-4, a refrigerant gas outlet, 4-5, a refrigerant liquid outlet, 4-6, a refrigerant liquid inlet, 4-7, an atomization water inlet, 4-8, an atomization water outlet, 4-9, a disturbance device,
5. Electronic valves V 1, 6, electronic valves V 2, 7, electronic valves V 3, 8, electronic valves V 4, 9, electronic valve V 5,
10. The photovoltaic device comprises a photovoltaic panel, 10-1, photovoltaic panel cooling water, 10-2, a photosensitive sensor, 10-3, a cooling water atomization cooling device, 10-4, a maximum power tracking module, 10-5, a maximum illumination radiation tracking module, 10-6, a double-shaft rotating device, 10-7 and a frame;
11. A temporary refrigerant reservoir 12, heat exchange pipes 13, a first gas disturbance device 14, a compressor 15, a biomass turbine 16, an inverter 17, a condenser 18, an electronic valve V 6,
19. The oil-gas separator, 19-1, gas disturbance device II, 19-2, gas outlet, 19-3, semipermeable membrane baffle, 19-4, oil collecting baffle, 19-5, oil drop collecting device, 19-6, gas mixture inlet, 19-7, lubricant outlet,
20. The oil distributor comprises an oil distributor body, an oil distributor baffle, 21, electronic valves V 6 and 22, a liquid reservoir, 23, centrifugal pumps P 2 and 24, electronic valves V 7 and 25, a compressor power-off control module, 26, an indicator lamp, 27, a triode, 28, protection resistors R 1 and 29, a capacitor, 30, protection resistors R 2 and 31, oil dripping holes, 31-1, a knob, 31-2, a ratchet wheel, 31-3 ratchet wheels, 31-4 and bolts.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
Fig. 1 is a schematic structural diagram of the present invention, and a photoelectric conversion lifting and equipment protecting system includes a photovoltaic power generation system, a vapor compression refrigeration system, a biomass turbine system and a temporary power-off protecting system for a compressor, wherein the photovoltaic power generation system and the biomass turbine system are connected to power the vapor compression refrigeration system after grid connection, and the vapor compression refrigeration system is connected with the temporary power-off protecting system for the compressor.
The photovoltaic power generation system comprises a photovoltaic panel 10 and an inverter 16, wherein the photovoltaic panel 10 is electrically connected with the inverter 16, photons absorbed by a solar cell panel are converted into direct current by the photovoltaic panel 10 through a photovoltaic maximum power tracking system, and the direct current generated by the photovoltaic panel 10 is converted into alternating current by the inverter 16 and then is connected with a biomass energy turbine system after being connected with a vapor compression refrigeration system.
The photovoltaic panel 10 is provided with a photovoltaic maximum power tracking system, the photovoltaic maximum power tracking system comprises a frame 10-7, a cooling water atomization cooling device 10-3, a double-shaft rotation device 10-6, a photosensitive sensor 10-2, a maximum power tracking module 10-4, a maximum illumination radiation tracking module 10-5 and the cooling water atomization cooling device 10-3, the photovoltaic panel 10 is rotatably connected with the frame 10-7, the photovoltaic panel 10 is also connected with the frame 10-7 through the double-shaft rotation device 10-6, the photosensitive sensor 10-2 and the cooling water atomization cooling device 10-3 are both arranged on the photovoltaic panel 10, the cooling water atomization cooling device 10-3, the maximum power tracking module 10-4 and the maximum illumination radiation tracking module 10-5 are arranged on the frame 10-7, the maximum power tracking module 10-4 can play a control role, the double-shaft rotation device 10-6 is used for driving the photovoltaic panel 10 to rotate to adapt to illumination change, and the photosensitive sensor 10-2 is used for detecting illumination intensity.
The vapor compression refrigeration system comprises an evaporator 1, a heat exchanger 4, a liquid storage 22, a compressor 14 and an oil-gas separator 19, wherein refrigerant liquid in the evaporator 1 is evaporated to form refrigerant gas which flows into the heat exchanger 4, the refrigerant gas exchanges heat with the refrigerant liquid sent out by the liquid storage 22 and the photovoltaic panel cooling water 10-1 through a gas disturbance device 4-9 in the heat exchanger 4, the heat exchanger 4 is connected with the compressor 14, the compressor 14 is connected with the oil-gas separator 19, the oil-gas separator 19 is connected with a condenser 17, and the oil-gas separator 19 is connected with the compressor 14 for recycling lubricating oil.
The temporary power-off protection system of the compressor comprises a temporary refrigerant storage 11, an electronic valve V 2, a compressor power-off control module 25, an indicator lamp 26, a triode 27, a protection resistor R 1 28, a protection resistor R 2 and a capacitor 29, wherein the input end of the compressor 14 is connected with the output end of the temporary refrigerant storage 11, the electronic valve V 2 6 is arranged between the output end of the compressor 14 and the input end of the temporary refrigerant storage 11, and the electronic valve V 2 6 is arranged between the output end of the compressor 14 and the input end of the oil-gas separator 19;
The left end of the compressor power-off control module 25 is connected with the left end of the capacitor 29, the right end of the compressor power-off control module 25 is connected with the right end of the protection resistor R 2, the left end of the capacitor 29 is connected with the first pole of the triode 27, the second pole of the triode 27 is connected with the right end of the capacitor 29 and the left end of the protection resistor R 2, the third pole of the triode 27 is connected with the left end of the indicator lamp 26, the right end of the indicator lamp 26 is connected with the lower end of the protection resistor R 1, and the upper end of the protection resistor R 1 is connected with the right end of the protection resistor R 2 30.
The oil-gas separator 19 comprises an oil molecular baffle 20, a second gas disturbance device 19-1, an oil drop hole 31, a semi-permeable membrane baffle 19-3, an oil collecting baffle 19-4, an oil drop collecting device 19-5, a gas mixture inlet 19-6 and a lubricating oil outlet 19-7, wherein a gas mixture of lubricating oil and refrigerant enters from the gas mixture inlet 19-6, is blown to the oil collecting baffle 19-4 through the second gas disturbance device 19-1, filters macromolecular oil drops, filters the micromolecular oil drops through the second gas disturbance device 19-1, and passes through the semi-permeable membrane baffle 19-3, and the filtered oil drops drop sequentially drop into the oil drop collecting device 19-5 through the oil drop hole 31 to flow out from the lubricating oil outlet 19-7 after being collected, the oil drop hole 31 is connected with the oil collecting baffle 19-4, and the second gas disturbance device 19-1 can enable the gas to reach a turbulent state during flowing, so that the filtering effect of the macromolecular oil drops is improved.
The accumulator 22 is connected to the heat exchanger 4 through a pipe, the refrigerant liquid of the pipe is supplied to the heat exchanger 4 through a centrifugal pump P 2, and the electronic valve V 7 controls the flow rate of the refrigerant liquid of the pipe.
The heat exchanger 4 is connected to the electronic expansion valve 3, and the electronic expansion valve 3 sends the refrigerant liquid to the evaporator 1 through the centrifugal pump P 1 2.
The heat exchanger 4 comprises a first gas disturbance device 13, a heat exchange tube 12, a shunt tube 4-1, an atomization water pipeline 4-2, a refrigerant gas inlet 4-3 and a refrigerant gas outlet 4-4, wherein the refrigerant gas inlet 4-3 is connected to the shunt tube 4-1, and refrigerant gas blown out from the shunt tube 4-1 passes through the gas bypass device 4-9, performs convection heat exchange with the atomization water pipeline 4-2 and the heat exchange tube 12, and flows out from the refrigerant gas outlet 4-4.
The photovoltaic-biomass combined energy supply refrigeration house photoelectric conversion lifting and equipment protection system mainly comprises an intelligent control module and a physical regulating module controlled by the intelligent module, wherein one part is an intelligent control module, the other part is a physical regulating module controlled by the intelligent module, the main operation process is that photons are firstly converted into electrons by a photovoltaic panel 10 to form current, the maximum power tracking module 10-4 regulates an operation mode through monitoring temperature, and a mainly used constant voltage method is easily influenced by temperature, so that the temperature is jointly controlled through water of a cooling water atomization cooling device 10-3 and a photosensitive sensor 10-2, when the temperature change is overlarge, the mode is changed into a fuzzy control method mode, a constant method is switched back after the temperature is regulated, the atomized water is cooled, then enters a heat exchanger 4 to exchange heat with refrigerant gas for recycling, and the other intelligent module obtains the maximum illumination radiation intensity through a photosensitive sensor 10-2 of the photovoltaic panel for one week, and the inverter is used for carrying out grid-connected time division and split power supply with a biomass turbine after the direct current is conveyed.
After the current is generated, the compressor 14 starts to work, refrigerant gas is compressed into high temperature and high pressure and then is conveyed into the oil-gas separator 19, in the oil-gas separator 19, the refrigerant and lubricating oil mixture collides with a baffle plate, the gas leaves, after the macromolecular oil drops are filtered, the gas also carries tiny oil drop molecules, and the gas enters the condenser 17 for condensation after being filtered by the semi-permeable membrane baffle plate 19-3.
The condensed refrigerant gas is changed into liquid, enters the liquid storage device 22, is conveyed into the heat exchanger through the centrifugal pump P 2 for cooling, exchanges heat with low-temperature low-pressure refrigerant coming out of the evaporator in the heat exchanger, then enters the evaporator 1 after being throttled by the electronic expansion valve 3, and is changed into gas through heat exchange with air in a pipeline, so that the refrigerant gas is circulated and reciprocated.
The temporary protection system for power failure of the compressor mainly uses the continuous discharge of the capacitor 29 to replace the power supply to work, the super capacitor is started by the potential difference, meanwhile, the refrigerant gas in the compressor 14 is extracted and sent into the temporary refrigerant storage 11, then the compressor 14 is continuously started after the power supply returns to normal, and the gas in the temporary refrigerant storage 11 is re-entered into the compressor 14 for compression.
When sunlight irradiates the photovoltaic panel 10, P-N junction in the photovoltaic panel 10 excites electron and electron hole pairs, the flow direction of the hole pairs and electrons in the P-N junction is opposite, and the flow direction is opposite because of electrification electricity, direct current is formed, the direct current is changed into alternating current through the inverter 16 and is connected with the biomass energy turbine 15 in a grid-connected mode to supply power, the circuit is firstly connected to a temporary power-off protection circuit of the compressor, after the super capacitor 29 is fully charged, the compressor 14 starts to suck refrigerant gas from the evaporator 1 to compress, the compressed 14 is subjected to high-temperature high-pressure gas and then enters the oil separator 20, lubricating oil carried in the gas is filtered, the lubricating oil is sent to the compressor 14 to be used continuously, the refrigerant gas enters the condenser 17, the condensed refrigerant gas enters the liquid storage 22, and then is sent to the heat exchanger 4 through the centrifugal pump P 2 to obtain a certain supercooling degree, so that the refrigerant gas is evaporated quickly after being subjected to heat insulation and throttling through the electronic expansion valve 3, and then the refrigerant gas is continuously sent to the compressor 14 to compress after evaporation to form the circulation of the whole system. The temporary power-off protection system for the compressor comprises an intelligent control module 25, two protection resistors R 1、R2 and R30, a working indicator lamp 26, a triode 27 and a super capacitor 29, after the power is on, the capacitor 29 slowly stores electricity, the compressor 14 starts to discharge after full storage to enter a normal working mode, the indicator lamp 26 is turned on, after the power is suddenly off, the intelligent module controls an electric valve V 6 through a signal of potential difference on two sides, the compressed refrigerant and the uncompressed refrigerant gas in the compressor 14 enter the temporary refrigerant storage container 11 together, the indicator lamp 26 is turned off simultaneously, the capacitor 29 continuously discharges to stop the compressor 14 slowly, normal operation is restarted when power supply is restored to be normal after the problem is solved, the indicator lamp 26 is turned on, and the refrigerant stored in the temporary refrigerant storage container 11 is reentered into the compressor 14 for compression, so that the whole system works normally.
Referring to fig. 2, the maximum power tracking system includes a photovoltaic panel 10, a photovoltaic panel cooling water 10-1, a cooling water atomization cooling device 10-3, a photosensitive sensor 10-2, a maximum power tracking module 10-4, a maximum illumination radiation tracking module 10-5, and a dual-axis rotating device 10-6, in the process of converting direct current into direct current by the photovoltaic panel 10, the maximum power output is parabolic without considering temperature, the maximum point is maximum output power, a maximum power tracking module 10-4 is added to keep the voltage near the maximum power, the control method is called a constant voltage method, the control method needs to keep the temperature unchanged, when the temperature change of the surface of the solar photovoltaic panel 10 of the system is not large, the voltage near the maximum power point of the system is not greatly changed, so that the temperature is jointly controlled mainly through the sensing of the atomization water and the photosensitive sensor 10-2 on the irradiation intensity, if the temperature change is too large, the maximum power output is parabolic, the maximum power is always kept near the maximum power according to the intensity, the photovoltaic panel characteristic, the ambient temperature and the like, the maximum power is continuously controlled by the intelligent control method, the maximum power is continuously controlled by the fuzzy control method, and the maximum power is continuously kept near the maximum power is continuously, and the fuzzy control method is continuously used, the maximum power is continuously controlled by adopting the maximum power control method. Besides controlling the temperature, the atomized cooling water can also reduce the temperature of the photovoltaic panel, so that the power generation efficiency is improved to some extent, atomized water flows into the pipeline, is conveyed into the heat exchanger 4 to exchange heat with the gas from the evaporator 1 for cooling, and is then conveyed back to the photovoltaic panel 10 for continuous cooling.
Referring to fig. 3, 4, 5 and 6, the oil separator mainly comprises an oil drop baffle 20, an oil collecting baffle 19-4, an oil collector 19-5, a semipermeable membrane baffle 19-3, a gas disturbance device 19-1 and an oil drop leakage device 19-2 oil drop holes 31. After the mixed gas with oil drops enters from the gas mixture inlet 19-6, the mixed gas is added and disturbed by the disturbance device 19-1 and then is impacted onto the oil collecting baffle 20 above, the baffle is provided with a small convex cone, impact force can be weakened, meanwhile, better oil collection can be achieved, the oil drops on the baffle slowly flow into the front-end drip hole 31 under the action of surface tension and gravity, the three-dimensional structure of the drip hole is shown in fig. 6, the size of the aperture of the drip hole 31 can be adjusted through the knob 31-1, when the knob 31-1 rotates, the ratchet wheel 31-2 below the aperture is driven to rotate, the ratchet wheel 31-2 drives the ratchet wheel shifting piece 31-3 to rotate to adjust the size, the ratchet wheel shifting piece 31-3 is fixed on the bolt 31-4, the size of the leaked oil drops is controlled according to the flow rate of gas, secondary mixing is avoided, the separation effect is reduced, after large oil drop molecules are filtered through four baffles, the tiny oil drop molecules still exist in the gas, the tiny oil drop molecules are filtered through a semipermeable membrane baffle 19-3 after the gas disturbance is added, the leaked oil drops are leaked from top to bottom to enter a lower annular oil collecting plate on a straight line, then the leaked oil drops return to a compressor through a lower oil outlet 19-7, the integral structure diagram of the gas disturbance device is shown in fig. 5, when the gas flows, a middle plectrum is irregular and swings up and down, so that the gas flow swings, the faster the gas flow rate, the stronger the swing, and the purpose of gas disturbance is achieved.
Referring to fig. 7, 8, 9, 10, 11 and 12, the main structure of the heat exchanger 4 is provided with a heat exchange tube 12, an atomization water pipeline 4-2, a gas shunt tube 4-1 and a disturbance device 4-9, refrigerant gas enters the shunt tube from an inlet 4-3 and is uniformly shunted, a better heat exchange effect is obtained by increasing gas disturbance, the pipeline is arranged at an inclined angle of 45 degrees to obtain a larger heat exchange area, the section of the pipeline is 8, the concave-convex of the pipeline can weaken the boundary layer of fluid, disturbance small parts are additionally arranged inside and outside the pipeline, the small parts outside the pipeline can enable air flows to collide with each other, disturbance is increased, the heat exchange effect is enhanced, the air flow direction is shown in fig. 9, the small parts also serve as fins, the effect of convection heat exchange can be increased, and the small parts outside the pipeline are arranged in detail as shown in fig. 11. Construction of the small part in the piping referring to fig. 10, the lower end of the small part is mainly used for forming an offset in the normal (V F) direction of the flow direction of the refrigerant liquid. The pipe is flushed in an oblique direction in the direction intermediate the direction of the pipe flow (V L) and the angle in the direction of the normal direction of the pipe flow (V F), which is the main function of the upper end of the small part. The same cross section in the pipeline is provided with 12 groups in total, the detailed view is shown in 11, a group is arranged in the pipeline at intervals, the refrigerant liquid is offset towards (V F) when flowing, and the refrigerant liquid is flushed obliquely, so that a good boundary layer weakening effect is obtained, the kinetic energy loss of the refrigerant liquid offset is reduced to a certain extent, the boundary layers are weakened in two different directions, the cross section of the pipeline is not regular circular, the boundary layers are weakened to a certain extent, and the convective heat transfer efficiency is higher.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.

Claims (8)

1. The photoelectric conversion lifting and equipment protecting system is characterized by comprising a photovoltaic power generation system, a vapor compression refrigerating system, a biomass energy turbine system and a compressor temporary power-off protecting system, wherein the photovoltaic power generation system and the biomass energy turbine system are connected with each other to supply power to the vapor compression refrigerating system, and the vapor compression refrigerating system is connected with the compressor temporary power-off protecting system;
the vapor compression refrigeration system comprises an evaporator, a heat exchanger, a liquid reservoir, a compressor and an oil-gas separator, wherein the compressor is connected with the oil-gas separator;
The temporary power-off protection system of the compressor comprises a temporary refrigerant storage, an electronic valve V 2, a compressor power-off control module, an indicator light, a triode, a protection resistor R 1, a protection resistor R 2 and a capacitor, wherein the input end of the compressor is connected with the output end of the temporary refrigerant storage, the electronic valve V 2 is arranged between the output end of the compressor and the input end of the temporary refrigerant storage, and the electronic valve V 2 is arranged between the output end of the compressor and the input end of the oil-gas separator;
The left end of condenser is connected to the left end of compressor power-off control module, the right-hand member of protection resistance R 2 is connected to the right-hand member of compressor power-off control module, the first utmost point of triode is connected to the left end of condenser, the right-hand member of condenser and the left end of protection resistance R 2 are connected to the second pole of triode, the left end of pilot lamp is connected to the third pole of triode, the lower extreme of protection resistance R 1 is connected to the right-hand member of pilot lamp, the right-hand member of protection resistance R 2 is connected to the upper end of protection resistance R 1.
2. The photovoltaic power generation system comprises a photovoltaic panel and an inverter, wherein the photovoltaic panel is electrically connected with the inverter, photons absorbed by the solar panel are converted into direct current through a photovoltaic maximum power tracking system, and the direct current generated by the photovoltaic panel is converted into alternating current through the inverter and then is connected with a biomass turbine system in a grid connection mode to be connected to a vapor compression refrigeration system.
3. The photovoltaic conversion lifting and equipment protecting system according to claim 2, wherein the photovoltaic panel is provided with a photovoltaic maximum power tracking system, the photovoltaic maximum power tracking system comprises a frame, a cooling water atomization cooling device, a double-shaft rotating device, a photosensitive sensor, a maximum power tracking module, a maximum illumination radiation tracking module and a cooling water atomization cooling device, the photovoltaic panel is rotatably connected with the frame, the photovoltaic panel is also connected with the frame through the double-shaft rotating device, the photosensitive sensor and the cooling water atomization cooling device are both arranged on the photovoltaic panel, and the cooling water atomization cooling device, the maximum power tracking module and the maximum illumination radiation tracking module are arranged on the frame.
4. The photoelectric conversion lifting and equipment protecting system according to claim 1, wherein the refrigerant liquid in the evaporator is evaporated to form refrigerant gas, the refrigerant gas flows into the heat exchanger, the refrigerant gas exchanges heat with the refrigerant liquid sent out by the liquid storage device and the cooling water of the photovoltaic panel through the gas disturbance device in the heat exchanger, the heat exchanger is connected with the compressor, the oil-gas separator is connected with the condenser, and the oil-gas separator is connected with the compressor for recycling lubricating oil.
5. The photoelectric conversion lifting and equipment protecting system according to claim 4, wherein the oil-gas separator comprises an oil separator, a second gas disturbance device, an oil dropping hole, a semi-permeable membrane baffle, an oil collecting baffle, an oil dropping collecting device, a gas mixture inlet and a lubricating oil outlet, wherein the lubricating oil and refrigerant gas mixture enters from the gas mixture inlet, passes through the second gas disturbance device and blows to the oil collecting baffle, large-molecular oil drops are filtered, small-molecular oil drops are filtered again through the second gas disturbance device and pass through the semi-permeable membrane baffle, the filtered oil drops drop down in turn through the oil dropping hole and flow into the oil dropping collecting device, the oil drops are collected and then flow out from the lubricating oil outlet, and the oil dropping hole is connected with the oil collecting baffle.
6. A photoelectric conversion lifting and equipment protecting system according to claim 4, wherein the liquid storage device is connected with the heat exchanger through a pipeline, the refrigerant liquid of the pipeline is conveyed to the heat exchanger through a centrifugal pump P 2, and the electronic valve V 7 controls the flow rate of the refrigerant liquid of the pipeline.
7. A photoelectric conversion lifting and equipment protecting system according to claim 4, wherein said heat exchanger is connected to an electronic expansion valve which sends the refrigerant liquid to the evaporator through a centrifugal pump P 1.
8. The photoelectric conversion lifting and equipment protecting system according to claim 4, wherein the heat exchanger comprises a first gas disturbance device, a heat exchange tube, a shunt tube, an atomization water pipeline, a refrigerant gas inlet and a refrigerant gas outlet, the refrigerant gas inlet is connected to the shunt tube, and the refrigerant gas blown out by the shunt tube flows out from the refrigerant gas outlet after passing through the gas disturbance device and performing convection heat exchange with the atomization water pipeline and the heat exchange tube of the heat exchanger.
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CN109247026A (en) * 2016-04-15 2019-01-18 艾默生环境优化技术有限公司 Actuation of the switch measuring circuit for electric pressure converter

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CN109247026A (en) * 2016-04-15 2019-01-18 艾默生环境优化技术有限公司 Actuation of the switch measuring circuit for electric pressure converter

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