CN106091192A - Air conditioning system and control method thereof - Google Patents
Air conditioning system and control method thereof Download PDFInfo
- Publication number
- CN106091192A CN106091192A CN201610429166.4A CN201610429166A CN106091192A CN 106091192 A CN106091192 A CN 106091192A CN 201610429166 A CN201610429166 A CN 201610429166A CN 106091192 A CN106091192 A CN 106091192A
- Authority
- CN
- China
- Prior art keywords
- conditioning system
- air conditioning
- storage tank
- port
- high pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
- F24F5/0021—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice using phase change material [PCM] for storage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
- F24F2005/0032—Systems storing energy during the night
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a kind of air conditioning system, including compressor, First Heat Exchanger, the second heat exchanger, control device and energy storage equipment；Air conditioning system has the first operational mode, the second operational mode and the 3rd operational mode under the switching controlling device；Wherein, in the first operating mode, the coolant quantity that the air entry of compressor sucks is equal to the coolant quantity of high pressure storage tank output；In the second operating mode, the coolant quantity that the coolant quantity of high pressure storage tank output sucks less than the air entry of compressor, the part coolant that compressor is discharged is stored in described high pressure storage tank；Under the 3rd operational mode, compressor is out of service, and in high pressure storage tank, the coolant of storage is used for the refrigeration of air conditioning system or heats.Present invention also offers the control method of a kind of air conditioning system.The air conditioning system of the present invention and control method thereof, it is achieved the accumulation of energy function of this air conditioning system, reduce power consumption；And, the energy storage equipment of air conditioning system of the present invention has simple in construction, the feature that accumulation of energy loss is little.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of air conditioning system and control method thereof.
Background technology
Usually, air conditioning system using Ice Storage Tank as energy storage equipment, during realizing operation of air conditioner by the way of ice-reserving
The peak load shifting of electric energy, to realize the effective utilization to electric energy, reduces electric cost simultaneously.But, above-mentioned employing Ice Storage Tank
Mode is used for Large Central Air Conditioning System unit, it is impossible to for domestic air conditioning；And the heat-insulating property requirement that aforesaid way is to Ice Storage Tank
The highest, cryogenic energy utilization rate is relatively low, affects the performance of air conditioning system.
Summary of the invention
In view of existing Ice Storage Tank cannot be applied to the problem of domestic air conditioning, it is an object of the invention to provide a kind of air-conditioning
System and control method, enable domestic air-conditioning system to carry out accumulation of energy in the paddy electricity period, can pass through accumulation of energy system in the peak electricity period
The cold peak load shifting realizing electric energy.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of air conditioning system, including compressor, First Heat Exchanger, the second heat exchanger, controls device and energy storage equipment；
Described energy storage equipment includes high pressure storage tank and low pressure storage tank；The air vent of described compressor connects described high pressure storage tank
The first end, described high pressure storage tank second end connect described control device；Described control device, described second heat exchanger and institute
Stating First Heat Exchanger and circulate connection successively, described control device is additionally coupled to the first end of described low pressure storage tank, and described low pressure is stored up
Second end of tank connects the air entry of described compressor；
Described air conditioning system has the first operational mode, the second operational mode and under the switching of described control device
Three operational modes；Wherein, under described first operational mode, the coolant quantity that the air entry of described compressor sucks is equal to described height
The coolant quantity of pressure storage tank output；In the second mode of operation, the coolant quantity of described high pressure storage tank output is less than described compression
The coolant quantity that the air entry of machine sucks, the part coolant that described compressor is discharged is stored in described high pressure storage tank；Described
Under three operational modes, described compressor is out of service, and in described high pressure storage tank, the coolant of storage is for the system of described air conditioning system
Cold or heat.
Wherein in an embodiment, described control device includes the control being arranged on the second end of described high pressure storage tank
Valve.
Wherein in an embodiment, described control valve is proportional solenoid or proportional electrovalve.
Wherein in an embodiment, described control device also include cross valve, described cross valve include the first port,
Two-port netwerk, the 3rd port and the 4th port；
Described first port connects described control valve, and described second port connects described First Heat Exchanger, and described first changes
Hot device connects described second heat exchanger, and described second heat exchanger connects described 4th port, and described 3rd port connection is described low
First end of pressure storage tank；
When described air conditioning system is used for freezing, described first port connects with described 4th port, described second port
Connect with described 3rd port；When described air conditioning system is used for heating, described first port connects with described second port, institute
State the 3rd port to connect with described 4th port.
Wherein in an embodiment, described energy storage equipment also includes the accumulation of heat knot being placed at the air entry of described compressor
Structure, runs through described accumulation of heat for connecting the connecting line between the second end of described low pressure storage tank and the air entry of described compressor
Structure.
Wherein in an embodiment, described accumulation of heat structure includes phase change heat storage material and/or insulation material.
Wherein in an embodiment, described energy storage equipment also includes being connected to described high pressure storage tank and described compressor
Check valve between air vent.
Wherein in an embodiment, also include throttling arrangement, described throttling arrangement be connected to described First Heat Exchanger and
Between described second heat exchanger.
Wherein in an embodiment, also include first sensor, the second sensor and the 3rd sensor, described first
Sensor is arranged at described First Heat Exchanger, and described second sensor is arranged at described second heat exchanger, and the described 3rd passes
Sensor is arranged at described energy storage equipment.
Present invention also offers the control method of a kind of air conditioning system, for the air conditioning system described in any of the above-described item, bag
Include following steps:
Judge whether the current power period is the paddy electricity period；The most then control air conditioning system and enter the second operational mode；If
No, then control air conditioning system and enter the first operational mode or the 3rd operational mode.
Wherein in an embodiment, control air conditioning system enters the step of the second operational mode and specifically includes:
Regulate the aperture of described control valve and improve the operating frequency of compressor, making the coolant quantity that described high pressure storage tank exports
The coolant quantity sucked less than described compressor air suction mouth.
Wherein in an embodiment, control air conditioning system and enter the first operational mode or the step bag of the 3rd operational mode
Include:
Whether store the coolant of High Temperature High Pressure in judging described high pressure storage tank, the most then control described air conditioning system first
It is introduced into the 3rd operational mode, when cold medium shortage in described high pressure storage tank, then controls described air conditioning system and enter the first fortune
Row mode；
If it is not, then directly control described air conditioning system to enter the first operational mode.
Wherein in an embodiment, also comprise the steps:
Judge whether air conditioning system is used for freezing, the most then control the first port and the connection of the 4th port of cross valve, the
Two-port netwerk and the connection of the 3rd port；If it is not, then control the first port and the connection of the second port, the 3rd port and the 4th of cross valve
Port connects.
The invention has the beneficial effects as follows:
The air conditioning system of the present invention and control method thereof, the high pressure storage tank connected with the air vent of compressor by setting,
When air conditioning system was run in the paddy electricity period, by controlling device, air conditioning system is switched to the second operational mode so that high pressure
The coolant quantity that the coolant quantity of storage tank output sucks less than compressor so that the coolant of part High Temperature High Pressure is stored in high pressure storage tank
In, it is achieved the accumulation of energy function of this air conditioning system；When air conditioning system was run in the peak electricity period, can be by controlling device by air-conditioning
System switches to the 3rd operational mode so that compressor is out of service, carries out air-conditioning system by the coolant of accumulation in high pressure storage tank
The refrigerating/heating of system, until after the cold medium shortage of accumulation, controlling air conditioning system and enter back into the first operational mode, it is achieved thereby that
" peak load shifting " of electric energy, reduces the power consumption of this air conditioning system；And, the energy storage equipment of air conditioning system of the present invention has knot
Structure is simple, the feature that accumulation of energy loss is little, so that this air conditioning system can be applied not only to large scale business unit, and also permissible
It is applied in domestic air conditioning unit, improves versatility and the serviceability of air conditioning system.
Accompanying drawing explanation
Fig. 1 is the system block diagram of air conditioning system one embodiment of the present invention；
Fig. 2 is the system block diagram under refrigerating state of the air conditioning system in Fig. 1；
Fig. 3 is the system block diagram under heating state of the air conditioning system in Fig. 1；
Fig. 4 is the flow chart of control method one embodiment of the air conditioning system of the present invention.
Detailed description of the invention
In order to make technical scheme clearer, below in conjunction with accompanying drawing, air conditioning system and the control thereof to the present invention
Method processed is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain that the present invention is not
For limiting the present invention.It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment
Can be mutually combined.
As it is shown in figure 1, the air conditioning system of one embodiment of the invention, including compressor 100, First Heat Exchanger 200, second change
Hot device 300, throttling arrangement 600, control device 400 and energy storage equipment 500, wherein, throttling arrangement 600 is connected to First Heat Exchanger
200 and second between heat exchanger 300.In the present embodiment, throttling arrangement 600 can be electric expansion valve or capillary tube.First changes
Hot device 200 can be vaporizer, and the second heat exchanger 300 can be condenser.Certainly, First Heat Exchanger 200 can also be for condensation
Device, the second heat exchanger 300 can also be vaporizer.
Energy storage equipment 500 includes high pressure storage tank 510 and low pressure storage tank 520；The air vent connection high pressure storage tank of compressor 100
First end of 510, the second end of high pressure storage tank 510 connect control device 400；Control device the 400, second heat exchanger 300, throttling
Device 600 and First Heat Exchanger 200 circulate connection successively, control device 400 and are also connected with the first end of low pressure storage tank 520, low pressure
The air entry of the second end connection compressor 100 of storage tank 520, forms refrigerant circulation circuit.Wherein, high pressure storage tank 510 is used for storing
Depositing the coolant of the High Temperature High Pressure discharged from compressor 100, low pressure storage tank 520 is for storing the coolant of low-temp low-pressure, low pressure storage tank
520 can also connect gas-liquid separator, to realize the gas-liquid separation at the air entry of compressor 100, to ensure compressor 100
Performance.The air conditioning system of the present embodiment both can apply to single cooler, it is also possible to is applied to air conditioner.
Further, control device 400 and include that control valve 410, control valve 410 are arranged on the second end of high pressure storage tank 510,
Control valve 410 is for controlling the coolant quantity of high pressure storage tank 510 output, and in the present embodiment, the aperture by adjusting control valve 410 can
To realize the control of the coolant quantity to high pressure storage tank 510 output, to realize the accumulation of energy function of this air conditioning system, and pass through accumulation of energy
Refrigeration or the function heated.And, it is also possible to by the aperture of adjusting control valve 410 so that the air conditioning system of the present embodiment can
To realize the change fan-out capability function of frequency-conversion air-conditioning system, improve the performance of this air conditioning system.
In the present embodiment, by arranging above-mentioned energy storage equipment 500 so that this air conditioning system is controlling the switching of device 400
Under there is three kinds of operational modes, the respectively first operational mode, the second operational mode and the 3rd operational mode.Wherein,
Under one operational mode, the coolant quantity that compressor 100 air entry sucks is equal to the coolant quantity of high pressure storage tank 510 output, now air-conditioning
System is in the situation that routine heats or freezes, and does not store coolant in high pressure storage tank 510.
In the second operating mode, the coolant that the coolant quantity of high pressure storage tank 510 output sucks less than compressor 100 air entry
Amount, now air conditioning system can be operated in the paddy electricity period, and the coolant that compressor 100 is discharged is partly into refrigerant circulation circuit and enters
The heating or freeze of line space adjusting system, the coolant of another part High Temperature High Pressure is stored in high pressure storage tank 510, to realize this air-conditioning
System is in the accumulation of energy function of paddy electricity period.
Under the 3rd operational mode, compressor 100 is out of service, carries out sky by the coolant of storage in high pressure storage tank 510
The refrigeration of adjusting system or heat.Now air conditioning system can be operated in the peak electricity period, to realize this air conditioning system in the peak electricity period
The function heated by accumulation of energy or freeze, thus meet " peak load shifting " of electric energy, reduce the usage amount of electric energy.Work as high pressure storage tank
During the cold medium shortage stored in 510, control device 400 and the operational mode of air conditioning system is switched to the first operational mode.This reality
Execute in example, ensureing that air conditioning system heats or on the basis of refrigeration, can be by control valve 410 under the 3rd operational mode
It is less that aperture is arranged, and to extend the time that accumulation of energy heats or freezes, reduces the usage amount of electric energy, using electricity wisely to greatest extent
Cost.
In one embodiment, when this air conditioning system is applied to single cooler, the air vent connection high pressure storage of compressor 100
First end of tank 510, the second end of high pressure storage tank 510 connects the control valve 410 controlling device 400；Control valve 410, second change
Hot device 300 and First Heat Exchanger 200 are sequentially connected with, and First Heat Exchanger 200 is connected to the first end of low pressure storage tank 520, and low pressure is stored up
The air entry of the second end connection compressor of tank 520, forms coolant loop.Now, by the aperture of adjusting control valve 410 and
The operating frequency of compressor, can make this single cooler be operated in the first operational mode, the second operational mode or the 3rd operational mode.
When this single cooler is operated in the first operational mode, now air conditioning system is in the situation of conventional refrigerant, and high pressure stores up
Coolant is not stored in tank 510.When this single cooler is operated in the second operational mode, now air conditioning system can be operated in Gu electricity Shi
Section, the coolant that compressor 100 is discharged is partly into refrigerant circulation circuit and carries out the refrigeration of air conditioning system, and another part high temperature is high
The coolant of pressure is stored in high pressure storage tank 510, to realize this air conditioning system accumulation of energy function in the paddy electricity period.When this single cooler work
Making when three operational modes, compressor 100 is out of service, carries out air conditioning system by the coolant of storage in high pressure storage tank 510
Refrigeration, now air conditioning system can be operated in the peak electricity period.
In another embodiment, control device 400 also include cross valve 420, cross valve 420 include the first port A, the
Two-port netwerk B, the 3rd port C and the 4th port D.First port A of cross valve 420 connects control valve 410, and control valve 410 connects
Between second end and the first port A of cross valve 420 of high pressure storage tank 510, the air vent of compressor 100 is connected to high pressure storage
First end of tank 510.Second port B connects First Heat Exchanger 200, First Heat Exchanger is sequentially connected with throttling arrangement 600 and second
Heat exchanger 300, the second heat exchanger 300 connects the 4th port D, and the first end of the 3rd port C connection low pressure storage tank 520, low pressure is stored up
Second end of tank 520 connects the air entry of compressor 100.
When air conditioning system is used for freezing, cross valve 420 is in power-up state, the first port A and the 4th port D connection,
Second port B and the 3rd port C connection.When air conditioning system is used for heating, cross valve 420 is in power-down state, the first port A
Connect with the second port B, the 3rd port C and the 4th port D connection.In the present embodiment, by switching the connection shape of cross valve 420
State, it is achieved to the refrigeration of this air conditioning system and the control that heats.Now, this air conditioning system is the changes in temperature for heating or freeze
Machine.
Further, controlling device 400 and can also include controller (not shown), controller is used for controlling cross valve
The connected state of 420, and control the aperture of control valve 410 and the operating frequency of compressor.In one embodiment, control valve
410 can be proportional solenoid or proportional electrovalve etc., and controller can come according to the dutycycle of its pulse signal exported
Realize the regulation of the aperture to control valve 410, thus realize under each operational mode, the coolant quantity of high pressure storage tank 510 output
Control.
As further improving, energy storage equipment 500 also includes the accumulation of heat structure being placed at the air entry of compressor 100
530, accumulation of heat structure 530 includes phase change heat storage material and/or insulation material.In the present embodiment, it is connected to the of low pressure storage tank 520
Connecting line between the air entry of two ends and compressor 100 run through accumulation of heat structure 530 so that the coolant in connecting line exists
Accumulation of heat structure 530 endothermic gasification, afterwards, connecting line connects with the air entry of compressor 100, to ensure the suction of compressor 100
The gas degree of superheat.The connecting line concrete set-up mode in accumulation of heat structure 530 is not done specifically defined, namely by the present embodiment
Say, connecting line stream in accumulation of heat structure 530 can by use any possible in the way of.
In one embodiment, energy storage equipment 500 also includes being connected to high pressure storage tank 510 and the air vent of compressor 100
Between check valve 540, check valve 540 in avoiding high pressure storage tank 510 refrigerant return of accumulation to compressor 100, thus
Ensure the reliability of compressor operating.In the present embodiment, each components and parts of energy storage equipment 500 can be integrated in same device
In.
As further improving, the air conditioning system of the present embodiment also includes first sensor (not shown), the second sensing
Device (not shown) and the 3rd sensor (not shown), first sensor can be arranged at First Heat Exchanger 200, the first sensing
Device can be temperature sensor, for detecting the ambient temperature at First Heat Exchanger 200.Second sensor is arranged on the second heat exchange
At device 300, the second sensor can be temperature sensor, the temperature at detection the second heat exchanger 300.3rd sensor sets
Putting at energy storage equipment 500, specifically, the 3rd sensor is placed in accumulation of heat structure 530, for detecting in accumulation of heat structure 530
Temperature.It is of course also possible to be respectively provided with the 4th sensor and the 5th sensor in high pressure storage tank 510 and low pressure storage tank 520, the
Four sensors and the 5th sensor can be pressure transducer.First sensor, the second sensor, the 3rd sensor, the 4th biography
Sensor and the 5th sensor are connected to controller.Certainly, each sensor above-mentioned can also be humidity sensor etc..Pass through
Sensor is set within air-conditioning systems, it is ensured that reliable, the safe operation of air conditioning system.
The operation principle of the air conditioning system of the present embodiment is described below in conjunction with the accompanying drawings:
As in figure 2 it is shown, when this air conditioning system is in refrigerating state, controller control the first port A of cross valve 420 with
4th port D connection, the second port B and the 3rd port C connection, now cross valve 420 may be at power-down state.Now, from
The High Temperature High Pressure coolant that compressor 100 is discharged passes sequentially through the second heat exchanger 300, throttling arrangement 600 and First Heat Exchanger 200 and enters
Return to the second port B of cross valve after row heat exchange, the 3rd port C of cross valve 420 return to compressor through low pressure storage tank 520
The air entry of 100.
When air conditioning system needs to run under conventional operating mode, controller passes through aperture and the compression of adjusting control valve 410
The operating frequency of machine so that this air conditioning system works in the first operating mode.Now, the air entry of compressor 100 sucks
Coolant is through compressor 100, check valve 540, high pressure storage tank 510, control valve 410 and cross valve 420 first port A and the 4th end
All entering the second heat exchanger 300 after mouth D to freeze, i.e. the coolant quantity of high pressure storage tank 510 output is equal to the air-breathing of compressor 100
The coolant quantity that mouth sucks, does not accumulate coolant in high pressure storage tank 510.Afterwards, coolant through throttling arrangement 600, First Heat Exchanger 200,
The suction of compressor 100 is returned to after second port B of cross valve 420 and the 3rd port C, low pressure storage tank 520 and accumulation of heat structure 530
QI KOU, completes a kind of refrigeration cycle.
When air conditioning system be operated in the paddy electricity period need accumulation of energy time, controller by the aperture of adjusting control valve 410 and
The operating frequency of compressor so that air conditioning system is in the second operational mode.Now, what the air entry of compressor 100 sucked is cold
Matchmaker enters in high temperature storage tank 510 through compressor 100, check valve 540, in wherein part coolant is stored in high pressure storage tank 510, another
Part coolant enters the second heat exchanger 300 condense through control valve 410, cross valve 420, and afterwards, coolant is through throttling arrangement 600
Entering in First Heat Exchanger 200 and freeze, then coolant is after cross valve 420, low pressure storage tank 520 and accumulation of heat structure 530
Return to the air entry of compressor 100.The most in the second operating mode, the coolant quantity of high pressure storage tank 510 output is less than compressor 100
The coolant quantity that air entry sucks, the coolant of reservoir part High Temperature High Pressure in high pressure storage tank 510, it is achieved that air conditioning system is at Gu electricity Shi
The accumulation of energy function of Duan Yunhang.Compared to the mode using Ice Storage Tank to carry out accumulation of energy, the energy loss of the way of energy storage of the present embodiment
Little, and the structure of energy storage equipment is simpler, it is simple to it is applied to the multiple air-conditioning such as normal domestic use air-conditioning and large commercial unit
Unit.
When air conditioning system needs to be operated in the peak electricity period, it is out of service that controller can first control compressor 100, passes through
In high pressure storage tank 510, the coolant of storage carries out the refrigeration of air conditioning system.Now, by the aperture of controller adjusting control valve 410
And the operating frequency of compressor so that this air conditioning system is in the 3rd operational mode.Now, the height of accumulation in high pressure storage tank 510
The coolant of temperature high pressure enters the second heat exchanger 300 through control valve 410 and cross valve 420 and condenses, afterwards through throttling arrangement 600
Entering in First Heat Exchanger 200 and freeze, then coolant returns to low pressure storage tank 520 through cross valve 420.Work as high pressure storage tank
During the cold medium shortage stored in 510, or, when high pressure storage tank 510 is equal with the pressure in low pressure storage tank 520, controller control
Compressor 100 processed runs, and makes air conditioning system be switched to the first operational mode by the 3rd operational mode.
As it is shown on figure 3, when this air conditioning system is in and heats state, controller control the first port A of cross valve 420 with
Second port B connection, the 3rd port C and the 4th port D connection, now cross valve 420 may be at power-up state.Now, from
The High Temperature High Pressure coolant that compressor 100 is discharged passes sequentially through First Heat Exchanger 200, throttling arrangement 600 and the second heat exchanger 300 and enters
After row heat exchange, the 3rd port C of cross valve 420 return to the air entry of compressor 100 through low pressure storage tank 520.
When air conditioning system needs to run under conventional operating mode, controller passes through adjusting control valve 410 and the work of compressor
Working frequency so that air conditioning system is in the first operational mode.Now, the coolant that the air entry of compressor 100 sucks is through check valve
540, all entering First Heat Exchanger 200 after high pressure storage tank 510 and cross valve 420 to heat, i.e. high pressure storage tank 510 output is cold
The coolant quantity that matchmaker's amount sucks equal to compressor 100 air entry, does not accumulate coolant in high pressure storage tank 510.Afterwards, coolant is through throttling dress
Put the 600, second heat exchanger 300, cross valve 420, low pressure storage tank 520 and accumulation of heat structure 530 and return to the air entry of compressor 100.
When air conditioning system be operated in the paddy electricity period need accumulation of energy time, controller by the aperture of adjusting control valve 410 and
The operating frequency of compressor so that air conditioning system is in the second operational mode.Now, what the air entry of compressor 100 sucked is cold
Matchmaker is in check valve 540 enters high temperature storage tank 510, in wherein part coolant is stored in high pressure storage tank 510, and another part coolant warp
Control valve 410, cross valve 420 enter First Heat Exchanger 200 and heat, and afterwards, coolant is through throttling arrangement the 600, second heat exchange
Device 300, cross valve 420, low pressure storage tank 520 and accumulation of heat structure 530 return to the air entry of compressor 100.I.e. run mould second
Under formula, the coolant quantity that the coolant quantity of high pressure storage tank 510 output sucks less than compressor 100 air entry, accumulation in high pressure storage tank 510
The coolant of part High Temperature High Pressure, to realize the accumulation of energy of paddy electricity period operation, compared to the mode using Ice Storage Tank to carry out accumulation of energy, this
The energy loss of the way of energy storage of embodiment is little, and the structure of energy storage equipment is simpler, it is simple to be applied to normal domestic use air-conditioning
And large commercial unit etc. multiple air conditioning unit in.
When air conditioning system needs to be operated in the peak electricity period, it is out of service that controller can first control compressor 100, passes through
In high pressure storage tank 510, the coolant of storage carries out heating of air conditioning system.Now, the controller aperture by adjusting control valve 410
And the operating frequency of compressor so that this air conditioning system is in the 3rd operational mode.Now, accumulation in high pressure storage tank 510
The coolant of High Temperature High Pressure enters First Heat Exchanger 200 through control valve 410 and cross valve 420 and heats, afterwards through throttling arrangement
600, the second heat exchanger 300 and cross valve 420 return to low pressure storage tank 520.When the cold medium shortage stored in high pressure storage tank 510,
Or, when high pressure storage tank 510 is equal with the pressure in low pressure storage tank 520, controller controls compressor 100 and runs, and makes air-conditioning
System is switched to the first operational mode by the 3rd operational mode.
In other embodiments, the air conditioning system of the present embodiment can pass through the aperture of controller adjusting control valve 410, from
And realize heating the control of coolant quantity in loop or refrigerating circuit, and then realize the function of frequency-conversion air-conditioning system, improve this
The performance of the air conditioning system of embodiment.
Present invention also offers the control method of a kind of above-mentioned air conditioning system, for the air-conditioning system of any of the above-described embodiment
System, comprises the steps:
S100, judge whether the current power period is the paddy electricity period；The most then perform step S200, control air conditioning system
Enter the second operational mode so that the coolant that the coolant quantity of high pressure storage tank 510 output sucks less than the air entry of compressor 100
Amount, accumulates the coolant having a certain amount of High Temperature High Pressure, thus realizes air conditioning system and run in the paddy electricity period in making high pressure storage tank 510
Accumulation of energy function.If it is not, then perform step S300, control air conditioning system and enter the first operational mode or the 3rd operational mode.
For example, it is possible to judge whether the current power period is the paddy electricity period according to the default electricity consumption period, default electricity consumption
Period can be daytime 7:00 be the peak electricity period to 10:00 at night, night, 10:00 to 7:00 in morning next day was the paddy electricity period.Control
According to the default electricity consumption period, the controller of device 400 processed can judge whether air conditioning system operates in the paddy electricity period.
In one embodiment, control air conditioning system to enter the step of the second operational mode and specifically include:
The aperture of adjusting control valve 410 also improves the operating frequency of compressor 100, makes the coolant that high pressure storage tank 510 exports
The coolant quantity that amount sucks less than the air entry of compressor 100, so that accumulation has a certain amount of high temperature high in high pressure storage tank 510
The coolant of pressure, it is achieved the accumulation of energy function that air conditioning system was run in the paddy electricity period.
In one embodiment, control air conditioning system to enter the step of the first operational mode or the 3rd operational mode and include:
Whether store the coolant of High Temperature High Pressure in judging described high pressure storage tank 510, the most then control air conditioning system first
Entering the 3rd operational mode, now, compressor 100 is out of service, and the coolant stored by high pressure storage tank 510 carries out air conditioning system
Heat or freeze, when cold medium shortage in high pressure storage tank 510, then control air conditioning system and enter the first operational mode, compression
Machine 100 resumes operation；If it is not, the most directly control air conditioning system to enter the first operational mode.
Specifically, whether can store in judging high pressure storage tank 510 by the way of the pressure of detection high pressure storage tank 510
The coolant of High Temperature High Pressure, and judge that the coolant of the interior storage of high pressure storage tank 510 is the most not enough.Such as, when in high pressure storage tank 510
When pressure approximates the pressure in low pressure storage tank 520, then the cold medium shortage stored in may determine that high pressure storage tank 510.
Further, the control method of air conditioning system also comprises the steps:
Judge whether air conditioning system operates in refrigerating state, the most then control the first port A and the 4th of cross valve 420
Port D connects, and the second port B and the 3rd port C connection, now cross valve 420 may be at power-down state；If it is not, then control
First port A and the second port B connection of cross valve 420, the 3rd port C and the 4th port D connection, now cross valve 420 can
To be in power-up state.
The process that specifically performs of the control method of the air conditioning system of the present embodiment, can be found in above in connection with air conditioning system
The description of operation principle, here is omitted.
The air conditioning system of the present invention and control method thereof, the high pressure storage tank connected with the air vent of compressor by setting,
When air conditioning system was run in the paddy electricity period, by controlling device, air conditioning system is switched to the second operational mode so that high pressure
The coolant quantity that the coolant quantity of storage tank output sucks less than compressor so that the coolant of part High Temperature High Pressure is stored in high pressure storage tank
In, it is achieved the accumulation of energy function of this air conditioning system；When air conditioning system was run in the peak electricity period, by controlling device by air conditioning system
Switch to the 3rd operational mode so that compressor is out of service, carry out air conditioning system by the coolant of accumulation in high pressure storage tank
Refrigerating/heating, until after the cold medium shortage of accumulation, controlling air conditioning system and enter back into the first operational mode, it is achieved thereby that electric energy
" peak load shifting ", reduce the power consumption of this air conditioning system；And, the energy storage equipment of air conditioning system of the present invention has structure letter
Single, that accumulation of energy loss is little feature, so that this air conditioning system can be applied not only to large scale business unit, and can apply
In domestic air conditioning unit, improve versatility and the serviceability of air conditioning system.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (13)
1. an air conditioning system, it is characterised in that include compressor (100), First Heat Exchanger (200), the second heat exchanger
(300), device (400) and energy storage equipment (500) are controlled；
Described energy storage equipment (500) includes high pressure storage tank (510) and low pressure storage tank (520)；The air vent of described compressor (100)
Connecting the first end of described high pressure storage tank (510), the second end of described high pressure storage tank (510) connects described control device (400)；
Described control device (400), described second heat exchanger (300) and described First Heat Exchanger (200) circulate connection, described control successively
Device processed (400) is additionally coupled to the first end of described low pressure storage tank (520), and the second end of described low pressure storage tank (520) connects institute
State the air entry of compressor；
Described air conditioning system has the first operational mode, the second operational mode and the 3rd fortune under the switching of described control device
Row mode；Wherein, under described first operational mode, the coolant quantity that the air entry of described compressor (100) sucks is equal to described
The coolant quantity that high pressure storage tank (510) exports；In the second mode of operation, the coolant quantity that described high pressure storage tank (510) exports
The coolant quantity sucked less than the air entry of described compressor (100), the part coolant that described compressor (100) is discharged is stored in institute
State in high pressure storage tank (510)；Under described 3rd operational mode, described compressor is out of service, in described high pressure storage tank (510)
The coolant of storage is used for the refrigeration of described air conditioning system or heats.
Air conditioning system the most according to claim 1, it is characterised in that described control device (400) includes being arranged on described
The control valve (410) of the second end of high pressure storage tank (510).
Air conditioning system the most according to claim 2, it is characterised in that described control valve (410) is proportional solenoid or ratio
Example electrodynamic valve.
Air conditioning system the most according to claim 2, it is characterised in that described control device also includes cross valve (420), institute
State cross valve (420) and include the first port A, the second port B, the 3rd port C and the 4th port D；
Described first port A connects described control valve (410), and described second port B connects described First Heat Exchanger (200), institute
Stating First Heat Exchanger (200) and connect described second heat exchanger (300), described second heat exchanger (300) connects described 4th port
D, described 3rd port C connect the first end of described low pressure storage tank (520)；
When described air conditioning system is used for freezing, described first port A connects with described 4th port D, described second port B with
Described 3rd port C connection；When described air conditioning system is used for heating, described first port A connects with described second port B,
Described 3rd port C connects with described 4th port D.
Air conditioning system the most according to claim 1, it is characterised in that described energy storage equipment (500) also includes being placed in described
Accumulation of heat structure (530) at the air entry of compressor (100), is used for connecting the second end of described low pressure storage tank (520) and described
Connecting line between the air entry of compressor (100) runs through described accumulation of heat structure (530).
Air conditioning system the most according to claim 5, it is characterised in that described accumulation of heat structure (530) includes phase-transition heat-storage material
Material and/or insulation material.
Air conditioning system the most according to claim 1, it is characterised in that described energy storage equipment (500) also includes being connected to institute
State the check valve (540) between the air vent of high pressure storage tank (510) and described compressor (100).
8. according to the air conditioning system described in any one of claim 1-7, it is characterised in that also include throttling arrangement (600), described
Throttling arrangement (600) is connected between described First Heat Exchanger (200) and described second heat exchanger (300).
9. according to the air conditioning system described in any one of claim 1-7, it is characterised in that also include first sensor, the second biography
Sensor and the 3rd sensor, described first sensor is arranged at described First Heat Exchanger, and described second sensor is arranged on
At described second heat exchanger, described 3rd sensor is arranged at described energy storage equipment.
10. the control method of an air conditioning system, it is characterised in that for the air conditioning system described in any one of claim 1-9,
Comprise the steps:
Judge whether the current power period is the paddy electricity period；The most then control air conditioning system and enter the second operational mode；If it is not,
Then control air conditioning system and enter the first operational mode or the 3rd operational mode.
11. control methods according to claim 10, it is characterised in that control air conditioning system and enter the second operational mode
Step specifically includes:
Regulating the aperture of described control valve and improve the operating frequency of compressor, the coolant quantity making described high pressure storage tank export is less than
The coolant quantity that the air entry of described compressor sucks.
12. control methods according to claim 10, it is characterised in that control air conditioning system enter the first operational mode or
The step of the 3rd operational mode includes:
Whether store the coolant of High Temperature High Pressure in judging described high pressure storage tank, the most then control described air conditioning system and first enter
Enter the 3rd operational mode, when cold medium shortage in described high pressure storage tank, then control described air conditioning system and enter the first operation mould
Formula；
If it is not, then directly control described air conditioning system to enter the first operational mode.
The control method of 13. air conditioning systems according to claim 10, it is characterised in that also comprise the steps:
Judge whether air conditioning system is used for freezing, the most then control the first port and the connection of the 4th port, second end of cross valve
Mouth connects with the 3rd port；If it is not, then control the first port and the connection of the second port, the 3rd port and the 4th port of cross valve
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610429166.4A CN106091192B (en) | 2016-06-15 | 2016-06-15 | Air-conditioning system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610429166.4A CN106091192B (en) | 2016-06-15 | 2016-06-15 | Air-conditioning system and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106091192A true CN106091192A (en) | 2016-11-09 |
| CN106091192B CN106091192B (en) | 2018-11-09 |
Family
ID=57235385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610429166.4A Active CN106091192B (en) | 2016-06-15 | 2016-06-15 | Air-conditioning system and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106091192B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801977A (en) * | 2017-01-09 | 2017-06-06 | 美的集团股份有限公司 | A kind of adjusting method of conditioners running conditions, system and air-conditioner |
| CN107339785A (en) * | 2017-06-26 | 2017-11-10 | 广东美的制冷设备有限公司 | Air-conditioning system and its control method |
| WO2022168098A1 (en) * | 2021-02-04 | 2022-08-11 | Storage Drop Ltd | Systems and methods for compressing, storing, and expanding refrigerant in order to supply low-cost air conditioning |
| CN115031322A (en) * | 2022-08-15 | 2022-09-09 | 浙大宁波理工学院 | Multifunctional energy storage system and air conditioner for solar spectrum frequency division cascade utilization |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114409A (en) * | 1994-05-30 | 1996-01-03 | 三菱电机株式会社 | Refrigerating circulating system and refrigerating air conditioning device |
| KR20030032708A (en) * | 2001-10-19 | 2003-04-26 | 헤스본주식회사 | a cooling matter circulation circuit for an air-conditioner |
| CN101487613A (en) * | 2009-02-12 | 2009-07-22 | 戴思嘉 | Ice-chilling air conditioning system |
| CN102645059A (en) * | 2011-12-12 | 2012-08-22 | 浙江吉利汽车研究院有限公司 | Automotive air conditioning system |
| CN202581699U (en) * | 2012-04-28 | 2012-12-05 | Tcl空调器(中山)有限公司 | Air-conditioning system |
| CN203518373U (en) * | 2013-06-26 | 2014-04-02 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN104566699A (en) * | 2013-10-10 | 2015-04-29 | 海尔集团公司 | Energy storage multi-connected air conditioning unit and control method thereof |
-
2016
- 2016-06-15 CN CN201610429166.4A patent/CN106091192B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114409A (en) * | 1994-05-30 | 1996-01-03 | 三菱电机株式会社 | Refrigerating circulating system and refrigerating air conditioning device |
| KR20030032708A (en) * | 2001-10-19 | 2003-04-26 | 헤스본주식회사 | a cooling matter circulation circuit for an air-conditioner |
| CN101487613A (en) * | 2009-02-12 | 2009-07-22 | 戴思嘉 | Ice-chilling air conditioning system |
| CN102645059A (en) * | 2011-12-12 | 2012-08-22 | 浙江吉利汽车研究院有限公司 | Automotive air conditioning system |
| CN202581699U (en) * | 2012-04-28 | 2012-12-05 | Tcl空调器(中山)有限公司 | Air-conditioning system |
| CN203518373U (en) * | 2013-06-26 | 2014-04-02 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN104566699A (en) * | 2013-10-10 | 2015-04-29 | 海尔集团公司 | Energy storage multi-connected air conditioning unit and control method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801977A (en) * | 2017-01-09 | 2017-06-06 | 美的集团股份有限公司 | A kind of adjusting method of conditioners running conditions, system and air-conditioner |
| CN106801977B (en) * | 2017-01-09 | 2019-03-15 | 美的集团股份有限公司 | A kind of adjusting method of conditioners running conditions, system and air conditioner |
| CN107339785A (en) * | 2017-06-26 | 2017-11-10 | 广东美的制冷设备有限公司 | Air-conditioning system and its control method |
| WO2022168098A1 (en) * | 2021-02-04 | 2022-08-11 | Storage Drop Ltd | Systems and methods for compressing, storing, and expanding refrigerant in order to supply low-cost air conditioning |
| CN115031322A (en) * | 2022-08-15 | 2022-09-09 | 浙大宁波理工学院 | Multifunctional energy storage system and air conditioner for solar spectrum frequency division cascade utilization |
| CN115031322B (en) * | 2022-08-15 | 2022-11-25 | 浙大宁波理工学院 | Multifunctional energy storage system and air conditioner for solar spectrum frequency division and cascade utilization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106091192B (en) | 2018-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105570993B (en) | Air-conditioning equipment | |
| CN205939467U (en) | Multi -split air conditioning system | |
| US9217574B2 (en) | Hot water supply apparatus associated with heat pump | |
| US6843066B2 (en) | Air conditioning system and method for controlling the same | |
| CN203132224U (en) | Air conditioner | |
| CN201535589U (en) | Heat pump air-conditioning system | |
| CN103673438A (en) | Sustainable heating multi-connected air-conditioner and defrosting method thereof | |
| EP3001123A1 (en) | Heat reclaim for a multifunction heat pump and a muntifunction air conditioner | |
| CN106091192A (en) | Air conditioning system and control method thereof | |
| CN103791569A (en) | Heat pump air-conditioning system | |
| US20040107709A1 (en) | Method for operating compressors of air conditioner | |
| EP3845831A1 (en) | Vehicle temperature management system | |
| CN105987456A (en) | Multi-connected air conditioning outdoor unit, multi-connected air conditioning system and small load operation control method thereof | |
| CN209386491U (en) | Air conditioner in machine room heat recovery system | |
| CN111486613B (en) | Air conditioning system, control method and device thereof and storage medium | |
| JP4650086B2 (en) | Thermal storage heat recovery device | |
| CN200993450Y (en) | Variable refrigerant flow intelligent ice-storage air conditioning system | |
| KR20100062405A (en) | Air conditioner and control method thereof | |
| KR20210093560A (en) | Air Conditioner System for Simultaneous Cooling, Heating and hot water supplying and Control Method of the Same | |
| CN108088008B (en) | Multi-split air conditioner and heat recovery system thereof | |
| KR102329430B1 (en) | Hybrid adsorption chiller having dual condensors and method for operating the same | |
| GB2458901A (en) | Heat pump system with first and second compressors | |
| CN213066334U (en) | Air conditioner | |
| CN108507237A (en) | A kind of data center's refrigeration system | |
| CN209893675U (en) | Cooling and heating type heat recovery system and single cooling type heat recovery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |