CN208817624U - Novel off-network no storage battery directly drives family photovoltaic air-conditioning system - Google Patents
Novel off-network no storage battery directly drives family photovoltaic air-conditioning system Download PDFInfo
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Abstract
The utility model relates to a kind of novel no storage battery off-networks directly to drive family photovoltaic air-conditioning system.The control strategy for proposing output power of photovoltaic module matched load compressor operation power reduces compressor variable frequency range, makes its stable operation under unsettled.In refrigeration cycle, evaporator is designed as single channel series connection dual coil pipes evaporation structure, using all standing defroster, accelerates balance cooling capacity；In addition, installing two-position four-way reversing solenoid valve additional, realizes that single channel double evaporators refrigeration sequence is exchanged, realize the function of intersecting cold-storage.With two threeway electromagnetic water valves in SAPMAC method, are installed additional, realizes and intersect cold function.Controller controls the on-off of each access of the input power of photovoltaic module, four way solenoid valve and threeway electromagnetic water valve, realizes intelligent cold-storage, with cold function.The utility model solves the problems, such as the problems such as refrigerating efficiency is low under compressor operation stability, ice-make cycle under unsettled, can run without interruption within 24 hours；System maintenance is less, can be widely used.
Description
Technical field
The utility model relates to a kind of novel off-network no storage batteries directly to drive family photovoltaic air-conditioning system, belong to Solar use
Technical field.
Background technique
With the development of social progress and science and technology, it is essential for pursuing high-quality life that air-conditioning has become people
Household electrical appliance, especially in extremely hot summer, therefore, air-conditioning also becomes the device that power consumption is most in family.It is general with air-conditioning
And use, national grid pressure is increasing, and hot summer becomes peak times of power consumption.In order to solve this problem, the world is each
State begins one's study solar airconditioning, since its is environmental-friendly, energy-saving and emission-reduction and the prominent characteristics such as inexhaustible, various countries is caused to be studied
The great attention of personnel；Wherein for photovoltaic cold storage of ice making air-conditioning system by being converted into ice storage using water, ice heat absorption mutually becomes water
The mode cooling supply of released cold quantity has the PV air-conditioner of battery relative to tradition, replaces electric power storage energy storage by ice storage, reduces
System cost, it is also more environmentally-friendly.
However, for photovoltaic ice-reserving refrigerated air-conditioning system, its development that existing several problems perplex always with push away
It is wide: 1, since the intermittence and unstability of irradiation level make compressor fluctuation of service, restrict its service life；2, cold-storage
With the increase of ice layer thickness so that evaporator temperature reduces in case, evaporation coefficient sharply declines, and is formed icy, seriously affects
Make ice efficiency；3, at the night of no irradiation level, PV air-conditioner cannot work on, uncomfortable using the condition for being limited its work
In large-scale popularization.In order to solve these problems, researcher is made that a large amount of trials, such as improves the distribution of evaporator, increases and stores
Volume of ice chest etc., so that cooling capacity is evenly distributed, cooling capacity storage increases, but its complex process, cost of manufacture also mention significantly
It is high.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies of existing PV air-conditioner, provide a kind of novel off-network no storage battery
It is straight to drive family photovoltaic air-conditioning system.System is divided into 3 photovoltaic energy module, cold storage of ice making module and room cooling supply module modules,
As shown in Figure 1；Photovoltaic energy module is by groups such as photovoltaic array, controller, multi-channel electromagnetic inductive switch, the inverse control all-in-one machines of photovoltaic
At refrigeration module includes refrigeration frequency-changeable compressor, condenser, liquid storage device, capillary, two-position four-way reversing solenoid valve, single channel
Series connection double plate pipe evaporator, gas-liquid separator etc., room cooling supply module is by double cold-accumulating box, threeway electromagnetic water valve, water circulating pump, room
The composition such as interior machine.Problem to be solved has: 1, the problem for causing evaporator heat transfer efficiency low is subcooled in the double cold-accumulating box of PV air-conditioner；
2, under night without sunlight PV air-conditioner continuous use problem.3, photovoltaic array output-power fluctuation is excessive under unsettled, pressure
The problem of contracting machine frequency conversion is too fast, amplitude is excessively high, leads to refrigeration frequency-changeable compressor fluctuation of service and low efficiency.
To solve the above problems, the technical solution of the utility model are as follows:
This system devises a kind of single channel series connection double plate pipe evaporator, is submerged and is sealed in the double cold-storages of stainless steel insulation
In case, the aperture that single channel series connection dual coil pipes evaporator pipeline passes through among double cold-accumulating box is connected；Evaporator is single channel string
Join two coil evaporators to form, single channel series connection double plate pipe evaporator import and export is separately connected two-position four-way reversing solenoid valve
Two commutation outlet valves in, the common end that two-position four-way reversing solenoid valve inlet valve connects check valve and capillary exports, two
Position another outlet valve of four-way reversing solenoid valve connects gas-liquid separator entrance, specifically ice making cooling supply module as shown in figure 1.
Temperature sensor is distributed in the temperature of different location detection ice sheet and water layer in double cold-accumulating box, and controller is with double storages
The temperature of evaporator different layers is input signal in ice chest, controls two-position four-way reversing solenoid valve and each access of threeway electromagnetic water valve
On-off, intelligent control refrigeration, it is specific as shown in Figure 2.
Specifically, after the different location that temperature sensor is distributed in double cold-accumulating box detects the temperature of ice sheet and water layer,
Controller goes out the general refrigeration ability in double cold-accumulating box in each cold-accumulating box by theoretical formula method, when the cooling capacity of cold-accumulating box A is more than storage
When the certain value of the cooling capacity of ice chest B, controller controls two-position four-way reversing solenoid valve commutation cold-storage, and refrigeration working medium preferentially passes through storage
Ice chest B is cold-accumulating box B cold-storage, and controls two threeway electromagnetic water valves with controller in SAPMAC method and open valve 1, closes valve
2, preferentially using cooling capacity in cold-accumulating box A；Equally, when the certain value of cooling capacity of the cooling capacity of cold-accumulating box A more than cold-accumulating box B, control
Device control two-position four-way reversing solenoid valve commutates cold-storage again, and it is cold-accumulating box A cold-storage that refrigeration working medium, which preferentially passes through evaporator A, and
Two threeway electromagnetic water valves are controlled with controller in SAPMAC method and open valve 2, close valve 1, preferentially using cold in cold-accumulating box A
Amount.
On-off of the above technical scheme by control two-position four-way reversing solenoid valve and each access of threeway electromagnetic water valve, intelligence
Regulation refrigeration, with cold strategy, solve formation excessively icy in photovoltaic cold storage of ice making air conditioner refrigerating process of cool, reduce list
The evaporating temperature of Tandem double plate pipe evaporator, finally solving leads to the reduction of evaporator refrigeration coefficient due to excessively icy, steams
The problem of device heat exchange efficiency reduces is sent out, meanwhile, so that the cooling capacity stored in double cold-accumulating box maximizes, the cooling capacity for improving system is held
Amount provides safeguard for night long-time cooling supply.
A kind of novel with cooling system, outer gallbladder of double cold-accumulating box based on double cold-accumulating box, threeway electromagnetic water valve has also been devised in system
Quality steel plate is all made of to be process, liner uses high-class stainless steel mirror board, and heat preservation material is high-density glass cellucotton, if
Meter shape is cylindrical type appearance, and upper bottom surface is similar paraboloid hemispherical, engagement sides between double cold-accumulating box.
In addition, installing full coverage type defroster in ice-storage box additional, specific structure is as shown in Figure 3,4, and defroster is uniformly distributed stream
Into cold-accumulating box is with cold working medium and all standing is in ice face, accelerating balance cooling capacity, the excessively icy formation of evaporator is further decreased；
2 water inlet valves of one of threeway electromagnetic water valve are respectively connected to 2 water outlets of double cold-accumulating box, it another goes out
Mouth of a river valve accesses indoor heat exchanger water inlet, and 2 outlet valves of another threeway electromagnetic water valve are respectively connected to double cold-storages
2 water inlets of case, its another water inlet valve access indoor heat exchanger water outlet, and room is for SAPMAC method by two three
The on-off of each valve of logical electromagnetic water valve, which works together, to be completed；Controller is with the temperature of evaporator different layers in double cold-accumulating box
Input signal, controls the on-off of each access of two threeway electromagnetic water valves, Chu Lengyu cold need of the intelligent control during cold
It asks, it is specific as shown in Figure 2.
Specifically, after the different location that temperature sensor is distributed in double cold-accumulating box detects the temperature of ice sheet and water layer,
Controller goes out the general refrigeration ability in double cold-accumulating box in each cold-accumulating box by theoretical formula method, when daytime cold storage of ice making module in work
Make and room cooling supply module is when needing work, if the certain value of cooling capacity of the cooling capacity of cold-accumulating box A lower than cold-accumulating box B, three are powered
Magnetic water valve opens valve 2, valve 1 is closed, preferentially using cooling capacity in cold-accumulating box B；Equally, when the cooling capacity of evaporator B is lower than steaming
When sending out the certain value of the cooling capacity of device A, threeway electromagnetic water valve opens valve 1, closes valve 2, preferential to use cooling capacity in evaporation 1；
When night, refrigeration unit did not worked, the cooling capacity stored by double cold-accumulating box on daytime is successively used；When room, cooling supply module does not work
When, threeway electromagnetic water valve is closed, and water circulating pump is closed.
The logical novel cooling system of one kind that devises of above technical scheme makes the system cold storage capacity moment keep maximum cold storage capacity,
Electricity generation air conditioner is not inoperable asks for photovoltaic energy module when solving general off-network no storage battery PV air-conditioner night without sunlight
Topic replaces battery storage function using double cold-accumulating box cold storage of ice making, and system structure is simple, and capacity usage ratio is higher, more ring
It protects, and can solve general off-network in night plug and play and directly drive the problems that no storage battery PV air-conditioner is worked at night.
System also proposes a kind of new control strategy, according to refrigeration frequency-changeable compressor rated power size, steady operation electricity
Pressure and electric current determine what needs coupled under unsettled photovoltaic energy module output power transient change and unstable situation
Solar battery string quantity；DC voltage that controller is inputted using photovoltaic module, DC current control multichannel as input signal
The on-off of electromagnetic switch changes the quantity of the solar battery string in access system, so that the stable output power of photovoltaic module
Near refrigeration frequency-changeable compressor rated power, freeze frequency-changeable compressor steady operation；Wherein, the photovoltaic battle array of final system work
Column connects formed in series and parallel by the current stage that exports, the identical solar battery of voltage level, and solar battery string is several identical
The solar battery of parameter forms, and the quantity of coupling access sun energy battery strings determines the size of output power of photovoltaic module, tool
Body is as shown in Figure 5.
Specifically, photovoltaic module output direct current is three-phase alternating current by controller, the inverse control all-in-one machine inversion changing frequency of photovoltaic
Electricity is cold storage of ice making system power supply；Under unsettled, solar irradiance has fluctuation, the electric energy of photovoltaic energy system output
It is unstable；DC voltage that new control strategy is inputted using photovoltaic module, DC current as input signal, calculate power and with system
Cold frequency-changeable compressor rated power compares, and determines the size of photovoltaic array, and then determine the solar battery for needing to couple
The quantity of string, the on-off that controller control multi-channel electromagnetic switchs each road access appropriate number of solar battery string；The inverse control of photovoltaic
DC voltage, electricity of the all-in-one machine using freeze frequency-changeable compressor stable operation voltage, electric current as input signal, photovoltaic array input
Three-phase alternating voltage, three-phase alternating current needed for stream is reverse into refrigeration frequency-changeable compressor stable operation, so that refrigeration frequency conversion pressure
Contracting machine finally being capable of stable operation.
Above technical scheme solves under unsettled, and the power generation of photovoltaic energy module has fluctuation, eventually leads to refrigeration
Compressor variable frequency is too fast, and compressor runs the problems such as noise is big, low efficiency and service life are low；So that entire air-conditioning system operation is more
Stablize, improves the practical performance of off-network no storage battery PV air-conditioner.
The innovative point of the utility model be to propose it is a kind of can 24 hours efficient stables operation off-grid type photovoltaic it is empty
Adjusting system solves the problems of PV air-conditioner instantly, specific as follows: 1, it works together for having batteries to store energy instantly
PV air-conditioner, this PV air-conditioner system using photovoltaic directly drive three-phase refrigeration frequency-changeable compressor cold storage of ice making, give up restricted lifetime
And the battery of environmental pollution, battery power storage accumulation of energy is replaced using ice storage, reduces the complexity of system, early period is reduced and throws
Provide cost.2, a system such as big, low efficiency of system job insecurity caused by solar energy under directly driving for photovoltaic is intermittent, noise
Column problem, compressor fluctuation of service, noise be big under especially complicated weather, low efficiency, and then greatly shortens making for compressor
The problem of with the service life, this PV air-conditioner system propose the control plan of photovoltaic module coupling access solar battery string quantity Self Matching
Slightly, by determining the parameters such as refrigeration frequency-changeable compressor rated power, stable operating voltage and electric current, adjusting is coupled solar energy
The quantity of battery strings fluctuates input power in more a small range, solves poor system stability, low efficiency, service life and short etc. asks
Topic.3, connected double plate pipe evaporator and double cold-accumulating box in system by design single channel, install additional two-position four-way reversing solenoid valve and
Threeway electromagnetic water valve and using the methods of new control strategy to the storage of cooling capacity in air-conditioning system cold-accumulating box and using changing
Into optimization, icy formation was alleviated, system cold-storage capacity and refrigerating efficiency are improved, so that the utility model practical function is more
Good, the scope of application is more extensive, more has market value.
Detailed description of the invention
Fig. 1 is that novel off-network no storage battery directly drives family photovoltaic air-conditioning system structural schematic diagram.
Fig. 2 is that novel off-network no storage battery directly drives the cooling cold optimisation strategy block diagram of family photovoltaic air-conditioning system.
Fig. 3 is that novel off-network no storage battery directly drives the double cold-accumulating box design structure schematic diagrames of family photovoltaic air-conditioning system.
Fig. 4 is that novel off-network no storage battery directly drives the double cold-accumulating box side views of family photovoltaic air-conditioning system.
Fig. 5 is that novel off-network no storage battery directly drives family photovoltaic air-conditioning system photovoltaic module Self Matching strategy block diagram.
Fig. 6 is that novel off-network no storage battery directly drives all parts parameter list figure in the photovoltaic air-conditioning system embodiment of family.
Description of symbols: the inverse control all-in-one machine 4. refrigeration frequency conversion of 1. photovoltaic array, 2. multi-channel electromagnetic switch, 3. photovoltaic
9. capillary of compressor 5. condenser fan, 6. condenser, 7. liquid storage device, 8. check valve, 10. two-position four-way commutation electricity
11. temperature sensor 12.A of magnet valve 14. gas-liquid separator of evaporator 13.B evaporator 15. controller 16.1
17. indoor unit of threeway electromagnetic water valve, 18. cooling supply room No. 20.2 21. B of threeway electromagnetic water valve of 19. water circulating pump
The water inlet of 22. A cold-accumulating box of cold-accumulating box, 23. pairs of cold-accumulating box lateral sections passway 24.A cold-accumulating box water inlet 25.B cold-accumulating box
28. all standing defroster of mouth 26.B cold-accumulating box water outlet 27.A cold-accumulating box water outlet
A kind of novel off-network no storage battery of the utility model introduced below directly drives the specific implementation of family photovoltaic air-conditioning system
Mode.A kind of novel off-network no storage battery directly drives family photovoltaic air-conditioning system.Overall work is divided into photovoltaic energy module, ice making stores
3 modules of cold module and room cooling supply module；Photovoltaic energy module is by photovoltaic array 1, multi-channel electromagnetic switch 2, controller
15, photovoltaic is formed against control all-in-one machine 3, and refrigeration module includes refrigeration frequency-changeable compressor 4, condenser 6, liquid storage device 7, list
To valve 8, capillary 9, two-position four-way reversing solenoid valve 10, single channel series connection double plate pipe evaporator (12,13), gas-liquid
Separator 14, all standing defroster etc., room cooling supply module are powered by water circulating pump 19, double cold-accumulating box (21,22), three
The composition such as magnetic water valve (16,20), water circulating pump 19, indoor unit 17, system structure are as shown in Figure 1.
Photovoltaic array 1 is placed in roof and is fixed by battery board bracket in photovoltaic energy module, receives sunlight and generates
Electric energy, is transferred to controller 15 after positive output line and negative output line by direct current, and controller 15 passes through control
The on-off on each road of multi-channel electromagnetic switch 2 determines the string number of the solar battery string of access, by the inverse control all-in-one machine 3 of photovoltaic
The three-phase electricity of refrigeration 4 stable operation of frequency-changeable compressor is become suitable for after DC-AC transformation, three-phase electricity is defeated by three-phase
Outlet supplies refrigeration unit, is room cooling supply, all parts parameter such as institute in Fig. 6 table in embodiment after refrigeration unit cold storage of ice making
Show.
When reducing (cloud cover) by solar irradiance, 1 input power of photovoltaic array reduces, and controller 15 receives
The on-off that multi-channel electromagnetic switch 2 is controlled after to signal opens the electromagnetic switch of respective numbers solar battery string, so that photovoltaic
1 output power of array increases, and is finally reached the rated power size of refrigeration frequency-changeable compressor 4, meets refrigeration frequency conversion compression
4 stable operation of machine requirement；On the contrary, 1 input power of photovoltaic array increases when being increased by solar irradiance when (cloud layer leaves)
Greatly, the electromagnetism that controller 15 receives control multi-channel electromagnetic switch 2 closing respective numbers solar battery string after signal is opened
It closes, so that 1 output power of photovoltaic array reduces, meets refrigeration 4 stable operation of frequency-changeable compressor requirement.
Freeze gas of the frequency-changeable compressor 4 by refrigerant compression for high temperature and pressure in refrigeration module, and gas flows through condenser
Low temperature and low pressure liquid is converted to when 6 under the action of condensing auxiliary blower 5, refrigerant liquid is flowing through single channel series connection pair
Evaporation endothermic when coil evaporator (12,13), the water in double cold-accumulating box (21,22) are taken the photograph due to being absorbed heat by becoming zero
The mixture of ice and water that the water of family name's degree then becomes zero degrees celsius finally build-ups ice, so that cooling capacity is stored, while realizing ice storage
Cold function；The refrigerant not distilled completely flows through gas-liquid separator 14 and is separated into gaseous refrigerant and liquid refrigerant, gas
It is compressed to high temperature and high pressure gas again when state refrigerant most Zhongdao refrigeration frequency-changeable compressor 4, and then forms the shape of refrigerant
State circulation, to achieve the effect that circularly cooling.
When solar irradiance reduces (cloud cover), freeze frequency-changeable compressor 4 after of short duration low-frequency operation, compared with
Fast is increased to the operation of stability range frequency stabilization；When solar irradiance increases (cloud layer leaves), freeze frequency-changeable compressor 4
It after of short duration high frequency operation, is reduced within the scope of stable frequency faster, frequency-changeable compressor stable operation of freezing.
In room cooling supply module, cooling supply working medium water at low temperature is circulated by the drive of water circulating pump 19, is powered into three
Magnetic water valve (16,20), flows through the heat exchange cooling supply of indoor unit 17, and working medium water at low temperature release latent heat is that middle warm water returns to double cold-accumulating box
In (21,22), continue flow circuit cooling supply with water at low temperature is become after the cold balancing in double cold-accumulating box (21,22).
When operation of air conditioner on daytime, refrigeration working medium is flowed by A evaporator 12, and B evaporator 13 flows out, and cold-storage priority A steams
It sends out device 12 and is higher than B evaporator 13, when the cold-storage total amount of B cold-accumulating box 21 is higher than 22 about 10MJ of A cold-accumulating box, room is supplied
Preferentially using the cooling capacity in B cold-accumulating box 21 in cold mode, at this point, threeway electromagnetic water valve (16,20) opens valve 2, close
Valve 1, water at low temperature are flowed out by B cold-accumulating box water outlet 26, into No. 1 16 valve 1 of threeway electromagnetic water valve, flow into indoor unit
The heat exchange of 17 heat exchangers, cools down for cooling supply room 18, and stream of warm water is into water circulating pump 19 in the circulation after heat exchange, through B cold-accumulating box
Water inlet 25 flows back to B cold-accumulating box, thus reciprocation cycle；When the cooling capacity in B cold-accumulating box 21 is less than the about 10MJ of A cold-accumulating box 22
When, controller 15 controls two-position four-way reversing solenoid valve 10 and changes refrigeration working medium flow direction, and refrigeration working medium is by B evaporator
13 flow into, and A evaporator 12 flows out, and cold-storage priority B evaporator 13 is higher than A evaporator 12, and room cooling mode preferentially makes
Valve 2 is closed, water at low temperature is by A at this point, threeway electromagnetic water valve (16,20) opens valve 1 with the cooling capacity in A cold-accumulating box 22
Cold-accumulating box water outlet 27 flows out, and into No. 1 16 valve 2 of threeway electromagnetic water valve, flows into the heat exchange of 17 heat exchanger of indoor unit, is
Cooling supply room 18 cools down, and stream of warm water flows back to A through A cold-accumulating box water inlet 24 into water circulating pump 19 in the circulation after heat exchange
Cold-accumulating box, thus reciprocation cycle；When A cold-accumulating box 22 is lower than 21 about 10MJ of B cold-accumulating box, controller 15 controls two four
Commutate cold-storage for the logical change of reversing solenoid valve 10 refrigeration working medium flow direction, such reciprocation cycle, so that double cold-accumulating box (21,
22) the cooling capacity moment reaches its maximum storage cooling capacity in, and single channel connects double plate pipe evaporator (12,13) also can working efficiency maximum
Change；Equally, at night without sunlight irradiation level when, double cold-accumulating box (21,22) reach its maximum cold storage capacity, successively use it at night
Cooling capacity in daytime double cold-accumulating box (21,22).
Claims (6)
1. a kind of novel off-network no storage battery directly drives family photovoltaic air-conditioning system, it is characterised in that traditional static ice-making system
Immersion evaporator is designed as single channel series connection dual coil pipes evaporation structure and is immersed in double cold-accumulating box water, meanwhile, double cold-storages
Case water inlet is designed using all standing ice-melt, accelerates ice-melt, balances cooling capacity；Install two-position four-way commutation additional in refrigeration cycle module
Solenoid valve realizes that single channel double evaporators refrigeration sequence is exchanged, reaches the function of intersecting cold-storage；With in SAPMAC method module, add
Two threeway electromagnetic water valves are filled, realizes that double cold-accumulating box cooling capacity are complementary, intersects with cold；It is proposed that a kind of photovoltaic module coupling accesses too
The control strategy of positive energy battery strings string number Self Matching, for being coupled load refrigeration compressor, under the influence of intermitant irradiation degree,
The specified of refrigeration frequency-changeable compressor is matched by changing the string number of the solar battery string of access air-conditioning system after tracking irradiation level
Power reduces the variable frequency range of refrigeration frequency-changeable compressor, compressor stable operation；Photovoltaic module input work is controlled by controller
The on-off of rate, two-position four-way reversing solenoid valve and each access of threeway electromagnetic water valve, realizes above-mentioned function.
2. novel off-network no storage battery according to claim 1 directly drives family photovoltaic air-conditioning system, it is characterised in that single-pass
Evaporator is respectively sealed in double cold-accumulating box in road series connection double plate pipe evaporator, and the pipeline of single channel series connection double plate pipe evaporator is worn
It crosses the sealing of double cold-accumulating box medial small holes to be connected, evaporator working medium inlet and outlet be separately connected two-position four-way reversing solenoid valve two can
Valve is controlled, two valves in addition are separately connected the common end outlet end of check valve and capillary and the import of gas-liquid separator
End.
3. novel off-network no storage battery according to claim 1 directly drives family photovoltaic air-conditioning system, it is characterised in that with cold
Double cold-accumulating box water inlets install full coverage type defroster additional in loop module, and uniform ice-melt accelerates balance cooling capacity；One of them
2 water inlet valves of threeway electromagnetic water valve are respectively connected to 2 water outlets of double cold-accumulating box, the access of another outlet valve
Indoor heat exchanger water inlet；2 outlet valves of another threeway electromagnetic water valve are respectively connected to 2 water inlets of double cold-accumulating box
Mouthful, another water inlet valve accesses indoor heat exchanger water outlet.
4. novel off-network no storage battery according to claim 1 directly drives family photovoltaic air-conditioning system, it is characterised in that double storages
The outer gallbladder of ice chest is all made of quality steel plate and is process, and liner uses high-class stainless steel mirror board, and heat preservation material is high-density glass
Cellucotton, design outline are cylindrical type appearance, and upper bottom surface is similar paraboloid hemispherical, and side suits between double cold-accumulating box,
Single channel series connection dual coil pipes evaporator pipeline side aperture seal connection.
5. novel off-network no storage battery according to claim 1 directly drives family photovoltaic air-conditioning system, it is characterised in that intersect
Cold-storage, with the control strategy in cold mode using the temperature of evaporator different layers in double cold-accumulating box as input signal, control two four
The on-off of each access of logical reversing solenoid valve and two threeway electromagnetic water valves, intelligent control refrigeration with cold；It is cold as cold-accumulating box A
When the certain value of cooling capacity of the amount lower than cold-accumulating box B, two-position four-way reversing solenoid valve commutation cold-storage, refrigeration working medium preferentially passes through evaporation
Device B be cold-accumulating box B cold-storage, and in SAPMAC method preferentially use cold-accumulating box A in cooling capacity；Equally, when the cooling capacity of cold-accumulating box B is lower than storage
When the certain value of the cooling capacity of ice chest A, two-position four-way reversing solenoid valve commutation cold-storage, refrigeration working medium passes through evaporator A preferentially to store
Ice chest A cold-storage, and in SAPMAC method preferentially using cooling capacity in cold-accumulating box B.
6. novel off-network no storage battery according to claim 1 directly drives family photovoltaic air-conditioning system, it is characterised in that photovoltaic
The control strategy of the solar battery string string number Self Matching of component coupling access is several voltages, the identical photovoltaic electric of current stage
Pond couples access multi-channel electromagnetic inductive switch in series and parallel, then accesses the inverse control all-in-one machine of photovoltaic, finally access refrigeration frequency-changeable compressor；
It is always defeated to calculate access component for detection signal for the DC voltage and DC current that controller is flowed out with multi-channel electromagnetic inductive switch
After power out, with refrigeration frequency-changeable compressor rated power comparison, the on-off by controlling electromagnetic induction switch changes the light of access
The quantity of battery strings is lied prostrate, thus change the gross output of access component, the rated power of final matching refrigeration frequency-changeable compressor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721137806.0U CN208817624U (en) | 2017-09-06 | 2017-09-06 | Novel off-network no storage battery directly drives family photovoltaic air-conditioning system |
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| CN201721137806.0U CN208817624U (en) | 2017-09-06 | 2017-09-06 | Novel off-network no storage battery directly drives family photovoltaic air-conditioning system |
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| CN208817624U true CN208817624U (en) | 2019-05-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388451A (en) * | 2017-08-30 | 2017-11-24 | 云南师范大学 | A kind of new no storage battery off-network directly drives family photovoltaic air-conditioning system |
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2017
- 2017-09-06 CN CN201721137806.0U patent/CN208817624U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388451A (en) * | 2017-08-30 | 2017-11-24 | 云南师范大学 | A kind of new no storage battery off-network directly drives family photovoltaic air-conditioning system |
| CN107388451B (en) * | 2017-08-30 | 2023-09-19 | 云南师范大学 | Novel no battery is from net direct-drive household photovoltaic air conditioning system |
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