CN114517944A - Air conditioning system - Google Patents

Air conditioning system Download PDF

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Publication number
CN114517944A
CN114517944A CN202210109314.XA CN202210109314A CN114517944A CN 114517944 A CN114517944 A CN 114517944A CN 202210109314 A CN202210109314 A CN 202210109314A CN 114517944 A CN114517944 A CN 114517944A
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China
Prior art keywords
energy storage
indoor
outdoor
heat exchange
heat
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Granted
Application number
CN202210109314.XA
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Chinese (zh)
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CN114517944B (en
Inventor
刘江彬
毛守博
宋强
何建奇
李银银
孟庆良
荣丹
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202210109314.XA priority Critical patent/CN114517944B/en
Publication of CN114517944A publication Critical patent/CN114517944A/en
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Publication of CN114517944B publication Critical patent/CN114517944B/en
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003—Filters
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application relates to the technical field of intelligent household appliances, and discloses an air conditioning system, which comprises: the heat exchanger comprises a refrigerant heat exchange module, an indoor energy storage heat exchange module, an outdoor energy storage heat exchange module and an intermediate heat exchange module, wherein the indoor energy storage part is connected with the indoor heat exchanger to form an indoor energy storage loop, the outdoor energy storage part is connected with the outdoor heat exchanger to form an outdoor energy storage loop, and the indoor energy storage part and the outdoor energy storage part can exchange heat in a controlled manner at the intermediate heat exchange part. Or the air conditioning system comprises a refrigerant heat exchange module and an energy storage heat exchange module, wherein the energy storage heat exchange module comprises a cold quantity/heat quantity which can be controlled to accumulate from the indoor heat exchanger, or can exchange heat with the outdoor heat exchanger. The embodiment of the disclosure changes the module structure design of the air conditioning system, can effectively reduce the waste of redundant energy of the outdoor unit, and improves the actual utilization efficiency of the energy of the air conditioning system.

Description

Air conditioning system
Technical Field
The application relates to the technical field of intelligent household appliances, for example to an air conditioning system.
Background
For office buildings, apartments, markets, hotels and other places, the whole area is large, and the places can be divided into a plurality of independent small spaces, so that the actual use requirements of the places can not be met by the common split type one-to-one air conditioner model, and the one-to-many commercial air conditioner is born by the company, and has a structure form of a plurality of indoor units, each indoor unit can be respectively installed in a plurality of rooms, the indoor units share one outdoor unit, compared with the split type one-to-one air conditioner, the one-to-many air conditioner has the advantages that the price is lower, and the installation space of the required outdoor unit is smaller.
When the 'one-driving-more' air conditioner is used, after any indoor unit is started, the outdoor unit needs to be started to operate and convey cold/heat to the indoor unit, and the cold/heat output by the outdoor unit correspondingly increases along with the increase of the starting number of the indoor units, so that the cold/heat supply power parameter of the outdoor unit is designed to at least meet the cold/heat supply requirements of all the indoor units, namely the capacity of the outdoor unit is at least more than the sum of the capacities of all the indoor units.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
in order to meet the design requirement of the capacity of the outdoor unit, the cold/heat output capacity of the outdoor unit of the one-drive-many air conditioner is generally designed to be a higher value; in the actual use process, all the indoor units are used less at the same time, and most of the operation states of the one-drive-many air conditioner are that the outdoor unit operates with larger power, and only part of the indoor units are started to use, so the actual cooling capacity/heat demand of the indoor units is less than the current cooling/heating capacity of the outdoor unit, which undoubtedly causes the waste of the redundant cooling capacity/heat output capacity of the outdoor unit.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides an air conditioning system, which aims to solve the technical problem that energy is easily wasted when an existing air conditioner is required by an outdoor unit for supplying cold/heat and an indoor unit for supplying heat.
In some embodiments, an air conditioning system includes:
the refrigerant heat exchange module comprises a compressor, an outdoor heat exchanger and an indoor heat exchanger and is connected through a refrigerant pipeline to form a refrigerant circulation loop;
the indoor energy storage heat exchange module comprises an indoor energy storage part, the indoor energy storage part is connected with an indoor heat exchanger to form an indoor energy storage loop, and the indoor energy storage part can be controlled to store cold/heat from the indoor heat exchanger or release the cold/heat to the indoor heat exchanger;
the outdoor energy storage heat exchange module comprises an outdoor energy storage part, the outdoor energy storage part is connected with the outdoor heat exchanger to form an outdoor energy storage loop, and the outdoor energy storage part can store cold/heat from the outdoor heat exchanger in a controlled manner or release the cold/heat to the outdoor heat exchanger;
the middle heat exchange module comprises a middle heat exchange part which is respectively communicated with the indoor energy storage part and the outdoor energy storage part, and the indoor energy storage part and the outdoor energy storage part can exchange heat in a controlled manner in the middle heat exchange part.
In still other embodiments, an air conditioning system includes a refrigerant heat exchange module, which includes a compressor, an outdoor heat exchanger and an indoor heat exchanger, and is connected to form a refrigerant circulation loop through a refrigerant pipeline; still include energy storage heat transfer module, energy storage heat transfer module includes:
the indoor energy storage part is connected with the indoor heat exchanger to form an indoor energy storage loop, and can be used for controllably accumulating cold/heat from the indoor heat exchanger or releasing the cold/heat to the indoor heat exchanger;
an indoor energy storage pipeline configured to connect the indoor energy storage part and the indoor heat exchanger to configure an indoor energy storage circuit; part of pipelines of the indoor energy storage pipeline are used as a parallel connection pipeline section and are provided with first control valves for controlling the on-off of the parallel connection pipeline section;
the two ends of the outdoor heat exchange pipeline are connected with the parallel connection pipe sections in parallel, and at least part of pipelines of the outdoor heat exchange pipeline are arranged in the outdoor heat exchanger so that the energy storage working medium flowing through the outdoor heat exchange pipeline can exchange heat with the outdoor heat exchanger; the outdoor heat exchange pipeline is provided with a second control valve for controlling the on-off of the outdoor heat exchange pipeline.
The air conditioning system provided by the embodiment of the disclosure can realize the following technical effects:
according to the air conditioning system provided by the embodiment of the disclosure, an indoor energy storage heat exchange module, an outdoor energy storage heat exchange module and an intermediate heat exchange module are additionally arranged on the basis of an original refrigerant heat exchange module, wherein the indoor energy storage heat exchange module can be used for absorbing cold/heat from an indoor heat exchanger, which is equivalent to increasing the actual cold/heat load of an indoor unit, so that part of redundant cold/heat output by the indoor unit can be stored; meanwhile, the cold/heat quantity acquired by the indoor energy storage heat exchange module can be released to the indoor heat exchanger again, and can be controlled to be conveyed to the outdoor heat exchanger so as to effectively recycle the part of cold/heat quantity. According to the sample disclosed embodiment, by changing the structural design of the air conditioning system module, the waste of redundant energy of the outdoor unit can be effectively reduced, and the actual utilization efficiency of the air conditioning system on the energy is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic diagram of an air conditioning system provided in an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of another air conditioning system provided by an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a control method for an air conditioning system according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of another control method for an air conditioning system according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of another control method for an air conditioning system according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of a control device for an air conditioning system according to an embodiment of the present disclosure.
Reference numerals:
100. a refrigerant heat exchange module; 101. an indoor heat exchanger; 102. an outdoor heat exchanger; 103. a compressor;
wherein, for the air conditioning system shown in fig. 1, the reference numerals are as follows:
201. an indoor energy storage unit; 202. an indoor energy storage pipeline; 203. an intermediate heat exchange line; 204. connecting pipe sections in parallel; 205. a first control valve; 206. a second control valve;
301. an outdoor energy storage unit; 302. an outdoor energy storage pipeline; 303. a third control valve;
400. an intermediate heat exchange module; 401. a middle heat exchanging part;
for the air conditioning system shown in fig. 2, the reference numerals are as follows:
201. an indoor energy storage unit; 202. an indoor energy storage pipeline; 203. an outdoor heat exchange pipeline;
301. connecting pipe sections in parallel; 302. a first control valve; 303. a second control valve.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
The term "correspond" may refer to an association or binding relationship, and a corresponding to B refers to an association or binding relationship between a and B.
In the embodiment of the disclosure, the intelligent household appliance is a household appliance formed by introducing a microprocessor, a sensor technology and a network communication technology into the household appliance, and has the characteristics of intelligent control, intelligent sensing and intelligent application, the operation process of the intelligent household appliance usually depends on the application and processing of modern technologies such as internet of things, internet and an electronic chip, for example, the intelligent household appliance can realize the remote control and management of a user on the intelligent household appliance by connecting the intelligent household appliance with the electronic device.
In the disclosed embodiment, the terminal device is an electronic device with a wireless connection function, and the terminal device can be in communication connection with the above intelligent household appliance by connecting to the internet, or can be in communication connection with the above intelligent household appliance directly in a bluetooth mode, a wifi mode, or the like. In some embodiments, the terminal device is, for example, a mobile device, a computer, or a vehicle-mounted device built in a floating car, or any combination thereof. The mobile device may include, for example, a cell phone, a smart home device, a wearable device, a smart mobile device, a virtual reality device, or the like, or any combination thereof, wherein the wearable device includes, for example: smart watches, smart bracelets, pedometers, and the like.
Referring to fig. 1, in an alternative embodiment, the air conditioning system mainly includes a refrigerant heat exchange module 100, an indoor energy storage heat exchange module, an outdoor energy storage heat exchange module, and an intermediate heat exchange module 400. The refrigerant heat exchange module 100 is mainly used for achieving a function of refrigerating or heating an indoor environment through components such as an indoor unit, the indoor energy storage heat exchange module is mainly used for exchanging heat with an indoor part of the refrigerant heat exchange module 100, the outdoor energy storage heat exchange module is mainly used for exchanging heat with an outdoor part of the refrigerant heat exchange module 100, and the middle heat exchange module 400 is mainly used for exchanging heat between the indoor energy storage heat exchange module and the outdoor energy storage heat exchange module.
The refrigerant heat exchange module 100 mainly includes a compressor 103, an outdoor heat exchanger 102, an indoor heat exchanger 101, a throttle device, a four-way valve, and the like.
Here, the refrigerant heat exchange module 100 includes two major components, i.e., an indoor unit and an outdoor unit, wherein the indoor unit is disposed at an indoor side, and an indoor heat exchanger 101 is disposed in the indoor unit and is used for exchanging heat between a refrigerant and an indoor environment to absorb indoor heat for cooling or release heat for heating; the outdoor unit is provided on the outdoor side, and components such as the compressor 103, the outdoor heat exchanger 102, and the four-way valve are provided in the outdoor unit.
The components of the refrigerant heat exchange module 100 are connected by refrigerant pipes, and are configured as a refrigerant circulation circuit, and a refrigerant is filled in the refrigerant circulation circuit, and the refrigerant can circulate along the refrigerant circulation circuit, thereby realizing heat transfer between the indoor side and the outdoor side.
In the embodiments disclosed in the present disclosure and described later, a "one-driving-multiple" air conditioner type is taken as an example for explanation, an indoor unit of the air conditioner is provided with a plurality of indoor heat exchangers 101, as shown in fig. 1, a refrigerant heat exchange module 100 is provided with 3 indoor heat exchangers 101, the 3 indoor heat exchangers 101 are connected in parallel, and a switching valve is respectively arranged on respective parallel branches, and the switching valve can be used for controlling the on-off state of each parallel branch, so as to control the specifically started indoor heat exchanger 101.
The parallel pipeline of at least one indoor heat exchanger 101 is provided with a switching valve for controlling the on-off of the indoor heat exchanger.
In some optional embodiments, the indoor energy storage heat exchange module mainly includes an indoor energy storage portion 201, an indoor energy storage pipeline 202, an intermediate heat exchange pipeline 203, and the like; the indoor energy storage portion 201 is mainly used for storing energy, the indoor energy storage pipeline 202 is used for connecting the indoor energy storage portion 201 and the indoor heat exchanger 101 to transmit energy between the indoor energy storage portion 201 and the indoor heat exchanger 101, and the first intermediate heat exchange pipeline 203 is mainly used for connecting the indoor energy storage portion 201 and the intermediate heat exchange module 400 to transmit energy between the indoor energy storage portion 201 and the intermediate heat exchange module 400.
Specifically, the indoor energy storage unit 201 is connected to the indoor heat exchanger 101 to form an indoor energy storage circuit, and the indoor energy storage unit 201 can controllably store the cooling/heating energy from the indoor heat exchanger 101 or release the cooling/heating energy to the indoor heat exchanger 101.
It should be noted here that, one of the optional ways of accumulating the cold energy in the indoor energy storage portion 201 is that after the energy storage working medium with a higher temperature in the indoor energy storage portion 201 is conveyed to the indoor heat exchanger 101, the heat of the energy storage working medium is absorbed by the outside to reduce the temperature of the energy storage working medium, so that the energy storage working medium is changed into a low-temperature medium, and is sent back to the indoor energy storage portion 201 again to be stored. That is, in this embodiment, the cold energy is stored in the indoor energy storage portion 201 by using the energy storage working medium itself as a carrier.
Correspondingly, one of the optional modes for the indoor energy storage part 201 to release the cold is that after the energy storage working medium with lower temperature in the indoor energy storage part 201 is conveyed to the indoor heat exchanger 101, the energy storage working medium absorbs external heat (equivalent to releasing the cold externally) to raise the temperature of the energy storage working medium, so that the energy storage working medium is changed into a medium-high temperature medium, and is sent back to the indoor energy storage part 201 again.
Similarly, one of the optional modes for the indoor energy storage part 201 to store heat is that after the energy storage working medium with a lower temperature in the indoor energy storage part 201 is conveyed to the indoor heat exchanger 101, the energy storage working medium absorbs heat from the outside to raise the temperature of the energy storage working medium, so that the energy storage working medium is changed into a medium-high temperature medium, and is returned to the indoor energy storage part 201 for storage.
Correspondingly, one of the optional modes for releasing heat from the indoor energy storage part 201 is that after the energy storage working medium with higher temperature in the indoor energy storage part 201 is conveyed to the indoor heat exchanger 101, the heat of the energy storage working medium is absorbed by the outdoor unit to reduce the temperature of the energy storage working medium, so that the energy storage working medium is changed into a low-temperature medium and is returned to the indoor energy storage part 201.
In other optional embodiments, the indoor energy storage portion 201 further includes a phase change material filled therein, and the phase change material is capable of absorbing cold/heat in the energy storage working medium flowing through the phase change material and releasing cold/heat to the energy storage working medium; therefore, in the present embodiment, the cold/heat can be stored in the indoor energy storage portion 201 by using the phase change material as a carrier.
In the embodiment of the present disclosure, the indoor energy storage part 201 is configured in a box form, and the inside is used as a space for accommodating energy storage working medium.
Specifically, the indoor energy storage unit 201 mainly includes components such as an indoor energy storage tank and an indoor drive pump.
Here, the indoor energy storage box is connected in series with the indoor energy storage loop, and the indoor energy storage box is used for storing energy storage working media. In this embodiment, the box body of the indoor energy storage box is made of a material with heat insulation or low heat conductivity coefficient, or the inner wall and the outer wall of the box body are provided with heat insulation layers, so that heat exchange between the environment where the indoor energy storage box is located and the energy storage working medium in the indoor energy storage box is reduced, and cold/heat can be stored for a longer time.
Optionally, an on-off valve is arranged on the liquid inlet side of the indoor energy storage tank, and the on-off valve can be used for controlling the on-off state of a liquid inlet side pipeline of the energy storage tank; optionally, another on-off valve is disposed on the liquid outlet side of the indoor energy storage tank, and the on-off valve may be used to control the energy storage tank and/or the liquid outlet side of the indoor energy storage tank.
In some embodiments, the indoor drive pump is connected in series with the indoor accumulator circuit and is configured to circulate a controllable drive accumulator fluid along the indoor accumulator circuit. In this embodiment, the power provided by the indoor driving pump can be used to drive the indoor energy storage tank and the indoor heat exchanger 101 for energy transmission, and can also drive the indoor energy storage tank or the space between the indoor heat exchanger 101 and the intermediate heat exchange module 400 for energy transmission.
In still other alternative embodiments, since a part of the energy storage working medium may cause a change in volume of the energy storage working medium itself when the heat/cold amount changes, which may cause the situation that the volume of the energy storage working medium after the change exceeds the volume design requirement of the indoor energy storage tank, in order to improve the safety of use and reduce the damage to the indoor energy storage tank caused by the change in volume of the energy storage working medium, the indoor energy storage portion 201 further includes a first safety valve connected in series to the indoor energy storage loop and located on the liquid outlet side of the energy storage tank, and the first safety valve is configured to be turned on to release pressure when the pressure of the flow path of the indoor energy storage loop is greater than the set pressure value.
Optionally, the set pressure value of the first safety valve is 0.5 Mpa. Here, the set pressure value of the first relief valve may be adaptively adjusted according to the load capacity of the indoor accumulator tank, to which the present application is not limited.
In some alternative embodiments, there may be a problem of impurities being introduced into the internal flow path during long-term use of the indoor thermal storage module, so as to reduce the influence of the impurities on other pipe components of the indoor thermal storage module, such as to avoid clogging the aforementioned indoor driving pump; the indoor energy storage part 201 further includes a first filter configured to filter out impurities of the energy storage working medium flowing through the indoor energy storage tank.
Optionally, the first filter is disposed on the liquid inlet side pipeline of the indoor driving pump, so as to filter and purify the energy storage working medium before flowing into the indoor driving pump.
In further alternative embodiments, the indoor energy storage portion 201 further comprises a first expansion tank configured to provide a volume-changing space for volume changes generated by changes in the cold and hot temperatures of the energy storage working medium in the indoor energy storage circuit; here, the working principle of the first expansion tank is: when the medium with pressure outside enters the first expansion tank, the nitrogen sealed in the tank is compressed, and the volume of the compressed gas is reduced and the pressure is increased according to the Boyle's law of gases, so that the volume of the tank body occupied by part of the original gas can be emptied, and the medium is filled into the volume until the gas pressure in the expansion tank is consistent with the medium hydraulic pressure; when the pressure of the medium is reduced (the gas pressure in the expansion tank is greater than the hydraulic pressure of the medium), the gas expands to extrude the medium in the tank out of the tank again so that the part of the medium returns to the indoor energy storage circuit to participate in circulation.
The first expansion tank is utilized to provide a certain volume change space for the energy storage working medium, so that the extrusion acting force of the volume change of the energy storage working medium on the related components of the indoor energy storage module can be reduced.
Similarly, in further alternative embodiments, the indoor energy storage portion 201 further comprises a first buffer tank configured to store at least a portion of the energy storage medium of the indoor energy storage circuit and to provide a volume-changing space for the volume change caused by the change in the temperature of the cold or heat energy of the energy storage medium.
In some embodiments, the indoor energy storage line 202 is connected in parallel with the first intermediate heat exchange line 203; wherein a part of the indoor energy storage pipeline 202 is used as a parallel connection pipe section 204, and both ends of the first intermediate heat exchange pipeline 203 are connected in parallel with the parallel connection pipe section 204, and in the air conditioning system shown in fig. 1, the parallel connection pipe section 204 is located at the liquid inlet side of the indoor energy storage tank. Under the connection mode, the energy storage working medium from the indoor heat exchanger 101 can be divided into two flow path flow directions, wherein one of the flow paths is that the energy storage working medium directly flows into the first intermediate heat exchange pipeline 203 without passing through the parallel connection pipe section 204, and then flows back to the indoor energy storage loop and flows into the indoor energy storage box; and the other is that the energy storage working medium flows into the indoor energy storage box after passing through the parallel connection pipe section 204.
In the present embodiment, the parallel pipe section 204 is provided with a first control valve 205, which can be used to control the on/off of the flow path of the parallel pipe section 204.
In an embodiment, at least a part of the intermediate heat exchange pipes 203 is disposed in the intermediate heat exchange portion 401, so that the energy storage working medium flowing through the first intermediate heat exchange pipe 203 exchanges heat in the intermediate heat exchange portion 401.
Here, a second control valve 206 is provided on the first intermediate heat exchange line 203, which can be used to control the flow path of the first intermediate heat exchange line 203 to be on or off.
In various embodiments of the foregoing, the types of energy storage working fluids include, but are not limited to, water, glycol, and the like.
In some optional embodiments, the outdoor energy-storage heat exchange module mainly comprises an outdoor energy-storage part 301 and an outdoor energy-storage pipeline 302; the outdoor energy storage portion 301 is mainly used for storing energy, and the indoor and outdoor energy storage pipelines are used for connecting the outdoor energy storage portion 301, the outdoor heat exchanger 102 and the intermediate heat exchange module 400 to transmit energy among the three.
Specifically, the outdoor energy storage unit 301 is connected to the outdoor heat exchanger 102 to configure an outdoor energy storage circuit, and the outdoor energy storage unit 301 can controllably store the cooling/heating energy from the outdoor heat exchanger 102 or release the cooling/heating energy to the outdoor heat exchanger 102.
In some alternative embodiments, the outdoor energy storage portion 301 includes an outdoor energy storage tank and an outdoor drive pump. The outdoor energy storage box is connected in series with the outdoor energy storage loop and is used for storing energy storage working media; the outdoor driving pump is connected in series with the outdoor energy storage loop and is configured to drive the energy storage working medium to circularly flow along the outdoor energy storage loop in a controllable mode.
Optionally, an on-off valve is arranged on the liquid inlet side of the outdoor energy storage tank, and the on-off valve can be used for controlling the on-off state of a liquid inlet side pipeline of the energy storage tank; optionally, another on-off valve is disposed on the liquid outlet side of the outdoor energy storage tank, and the on-off valve may be used to control the energy storage tank and/or the liquid outlet side of the outdoor energy storage tank.
Optionally, the outdoor energy storage part 301 further comprises one or more of the following components: a second relief valve, a second filter, a second expansion tank, and a second surge tank.
The second safety valve is configured to be conducted to release pressure when the pressure of the outdoor energy storage circuit flow path is larger than a set pressure value; the second filter is configured to filter impurities of the energy storage working medium flowing through the outdoor energy storage tank; the second expansion tank is configured to provide a variable volume space for volume change generated by change of cold and hot temperatures of the energy storage working medium in the outdoor energy storage loop; the second buffer tank is configured to store at least part of the energy storage working medium of the outdoor energy storage loop and provide a variable volume space for volume change generated by cold and hot temperature change of the energy storage working medium.
For the explanation of the structural form and the working principle of the relevant components of the outdoor energy storage module in the embodiment of the present disclosure, reference may be made to the explanation contents of the indoor energy storage module in the foregoing embodiment, and the two components are basically the same or similar, which is not described herein again.
The difference between the two is mainly that the outdoor energy storage pipeline 302 uses part of its own pipeline as the second intermediate heat exchange pipeline 203 and is arranged in the intermediate heat exchange portion 401, so that the energy storage working medium flowing through the second intermediate heat exchange pipeline 203 exchanges heat in the intermediate heat exchange portion 401, that is, the part of the parallel connection pipe section 204 in the indoor energy storage loop is not required to be arranged, and all parts of the outdoor energy storage pipeline 302 are mainly connected in series to form a series flow type energy storage working medium flow direction.
Optionally, a third control valve 303 is disposed on the outdoor energy storage pipeline 302, and is used for controlling the on-off state of the outdoor energy storage pipeline 302.
In some optional embodiments, the intermediate heat exchange module 400 includes an intermediate heat exchanging portion 401 in communication with the indoor energy accumulating portion 201 and the outdoor energy accumulating portion 301, respectively, and the indoor energy accumulating portion 201 and the outdoor energy accumulating portion 301 can exchange heat under control of the intermediate heat exchanging portion 401.
Illustratively, the intermediate heat exchanging portion 401 is a double pipe heat exchanger, which is divided into the aforementioned first intermediate heat exchanging pipeline 203 and the aforementioned second intermediate heat exchanging pipeline 203, and the energy storage working medium of the indoor energy storage module exchanges heat with the energy storage working medium of the outdoor energy storage module, which flows through the second intermediate heat exchanging pipeline 203, when flowing through the first intermediate heat exchanging pipeline 203. Alternatively, the heat may be transferred from the first intermediate heat exchange pipe 203 to the second intermediate heat exchange pipe 203, that is, the heat is transferred from the indoor side to the outdoor side; it is also possible that heat flows from the second intermediate heat exchange line 203 to the first intermediate heat exchange line 203, i.e. heat is transferred from the outdoor side to the indoor side.
Optionally, the double-pipe heat exchanger includes an inner pipe and an outer pipe which extend in the same axial direction and are sleeved with each other, wherein an inner pipe of the inner pipe serves as a channel for flowing an energy storage working medium at the indoor side, and a space formed by clamping between an inner wall of the outer pipe and an outer wall of the inner pipe serves as a channel for flowing an energy storage working medium at the outdoor side, so that the two energy storage working mediums can perform non-contact indirect heat transfer in the double-pipe heat exchanger, and the problem of cross contamination of two different mediums during heat exchange can be avoided.
Optionally, the double-pipe heat exchanger includes a first group of heat pipes and a second group of heat pipes, the first group of heat pipes and the second group of heat pipes are arranged in a manner of being in parallel, crossing, and the like, and are in heat conduction contact with each other, wherein the first group of heat pipes is communicated with the indoor energy storage module, and the second group of heat pipes is communicated with the outdoor energy storage module, so that energy storage working media flowing in the first group of heat pipes and energy storage working media flowing in the second group of heat pipes can also exchange heat in the double-pipe heat exchanger.
It should be understood that the above embodiments show the form of the double pipe heat exchanger, and the different structural designs of the double pipe heat exchanger, mainly for illustrative purposes, and are not intended to limit other types of heat exchangers and other variants of double pipe heat exchangers; other types of devices that can achieve the same or equivalent heat exchange between the refrigerant and the external working medium in the embodiments of the present disclosure should also be covered by the protection scope of the present application.
For the outdoor energy storage module, because the outdoor energy storage module is arranged at the outdoor side and is greatly influenced by the temperature of the outdoor environment, particularly the low temperature in winter, in order to avoid normal use under the low-temperature working condition, the energy storage working medium needs to adopt the medium type which is not easy to freeze at the low temperature, such as glycol and the like.
In some embodiments, the indoor heat exchanger 101 and/or the outdoor heat exchanger 102 are three-medium heat exchangers having a refrigerant heat exchange tube section, an energy storage working medium heat exchange tube section, and an air passage configured to enable heat exchange of any two or three of the refrigerant heat exchange tube section, the energy storage working medium heat exchange tube section, and the air passage.
Illustratively, a three-medium heat exchanger is utilized to enable the refrigerant flowing through the refrigerant heat exchange pipe section to exchange heat with the energy storage working medium flowing through the energy storage working medium heat exchange pipe section, for example, the energy storage working medium is heated by utilizing a high-temperature refrigerant, or the energy storage working medium is cooled by utilizing a low-temperature refrigerant; the energy storage working medium flowing through the energy storage working medium heat exchange pipe section is subjected to heat exchange with air flowing through the air channel by using the three-medium heat exchanger, for example, the air is heated by using a high-temperature energy storage working medium, or the air is cooled by using a low-temperature energy storage working medium; and the refrigerant flowing through the refrigerant heat exchange pipe section is subjected to heat exchange with the energy storage working medium flowing through the energy storage working medium heat exchange pipe section and the air flowing through the air channel by using the three-medium heat exchanger, for example, the energy storage working medium and the air are simultaneously heated by using a high-temperature refrigerant, or the energy storage working medium and the air are simultaneously cooled by using a low-temperature refrigerant, and the like.
Several alternative operating modes of the air conditioning system shown in the embodiments of the present disclosure are described below:
firstly, the refrigerant heat exchange module 100 performs cooling/heating: the refrigerant heat exchange module 100 is used to deliver a low-temperature or high-temperature refrigerant to the indoor heat exchanger 101 at the indoor side to cool/heat the indoor air.
Indoor side cold/heat accumulation: when the air conditioning system operates in a refrigeration mode, the refrigerant heat exchange module 100 conveys a low-temperature refrigerant to the indoor heat exchanger 101, the refrigerant in the indoor heat exchanger 101 absorbs heat from the outside, an indoor energy storage loop is opened to circulate at the moment, an energy storage working medium can be refrigerated and cooled when flowing through the indoor heat exchanger 101, and then the energy storage working medium is changed into the low-temperature energy storage working medium and flows back to the indoor energy storage box for storage; similarly, when the air conditioning system operates in the heating mode, the indoor energy storage loop starts to circulate, and drives the energy storage working medium to be heated and heated when flowing through the indoor heat exchanger 101, and then the medium-high temperature energy storage working medium flows back to the indoor energy storage tank to be stored. This way is equivalent to phase change to increase the indoor side load when the air conditioner operates in the cooling/heating mode, and can store the excess cooling/heating quantity output by the outdoor unit.
The indoor energy storage module group refrigerates/heats: when the air conditioning system stops the operation and refrigeration of the refrigerant heat exchange module 100, the indoor energy storage module can be driven to convey a low-temperature energy storage working medium to the indoor heat exchanger 101, and the energy storage working medium is used for cooling air flowing through the indoor heat exchanger 101; similarly, when the refrigerant heat exchange module 100 stops operating and cooling, the air flowing through the indoor heat exchanger 101 may be heated by the energy storage working medium in a manner of conveying the medium-high temperature energy storage working medium to the indoor heat exchanger 101.
The indoor energy storage module is matched with the outdoor energy storage module to carry out indoor temperature rise/temperature reduction: after absorbing heat from the outdoor environment, the outdoor energy storage module transmits the heat to the indoor energy storage module through the middle heat exchange module 400, the indoor energy storage module continuously conducts the heat to the indoor heat exchanger 101 and heats the air flowing through the indoor heat exchanger 101, and the heat exchange mode is suitable for the condition that the outdoor environment temperature is higher than the indoor environment temperature and the indoor environment temperature is lower than the target indoor environment temperature set by a user; and after the indoor energy storage module absorbs heat from the indoor side, the heat is transmitted to the outdoor energy storage module through the middle heat exchange module 400, the outdoor energy storage module continuously conducts the heat to the outdoor heat exchanger 102 and dissipates the heat to the outdoor side environment, the heat at the indoor side is reduced and the temperature is reduced in the process, and the heat exchange mode is suitable for the condition that the outdoor side environment temperature is lower than the indoor side environment temperature and the target indoor environment temperature set by a user.
Fifthly, the indoor energy storage module cooperates with the outdoor energy storage module to defrost the outdoor unit: the indoor energy storage module transmits heat absorbed by the indoor heat exchanger 101 or stored heat to the outdoor energy storage module through the middle heat exchange module 400, and the outdoor energy storage module continuously conducts the heat to the outdoor heat exchanger 102, so that the outdoor heat exchanger 102 can be heated and heated, and the defrosting purpose of the outdoor heat exchanger 102 can be achieved.
In an alternative embodiment, as shown in fig. 2, the air conditioning system includes a refrigerant heat exchange module 100 and an energy storage heat exchange module. The refrigerant heat exchange module 100 is mainly used for achieving a function of refrigerating or heating an indoor environment through components such as an indoor unit, and the energy storage heat exchange module can exchange heat with the indoor heat exchanger 101 and the outdoor heat exchanger 102 of the refrigerant heat exchange module 100 and store cold/heat.
Optionally, the refrigerant heat exchange module 100 in this embodiment is designed in a structural form substantially the same as that in the foregoing embodiment, and details are not described herein.
In some embodiments, the energy storage heat exchange module mainly includes an indoor energy storage portion 201, an indoor energy storage pipeline 202, an outdoor heat exchange pipeline 203, and the like.
The indoor energy storage part 201 is connected with the indoor heat exchanger 101 to form an indoor energy storage loop, and the indoor energy storage part 201 can store cold/heat from the indoor heat exchanger 101 or release cold/heat to the outdoor heat exchanger 102 in a controlled manner.
Optionally, the indoor energy storage part 201 includes an energy storage tank and a drive pump, wherein the energy storage tank is connected in series to the indoor energy storage loop, and the energy storage tank is used for storing energy storage working media; the liquid inlet side and/or the liquid outlet side of the energy storage box are/is provided with an on-off valve; the driving pump is connected in series with the indoor energy storage loop and is configured to enable the controllable driving energy storage working medium to circularly flow along the indoor energy storage loop.
The indoor energy storage portion 201 further includes one or more of the following components: relief valve, filter, expansion tank and buffer tank.
The safety valve is configured to be conducted to release pressure when the pressure of the indoor energy storage circuit flow path is larger than a set pressure value; the filter is configured to filter impurities of the energy storage working medium flowing through the energy storage tank; the expansion tank is configured to provide a variable volume space for volume change generated by change of cold and hot temperatures of the energy storage working medium in the indoor energy storage loop; the buffer tank is configured to store at least part of the energy storage working medium of the indoor energy storage loop and provide variable volume space for volume change generated by cold and hot temperature change of the energy storage working medium.
The indoor energy storage part 201 shown in the above embodiments adopts a design substantially the same as or similar to that of the indoor energy storage part 201 in the above embodiment of fig. 1, and details are not repeated herein.
In the present embodiment, the indoor energy storage pipeline 202 connects the indoor energy storage part 201 and the indoor heat exchanger 101 and is configured as an indoor energy storage loop along which the energy storage medium can flow for cold/heat transportation; wherein a part of the indoor energy storage pipeline 202 is used as a joint pipe section 301, and both ends of the outdoor heat exchange pipeline 203 are connected with the joint pipe section 301, in the air conditioning system shown in fig. 2, the joint pipe section 301 is positioned at the liquid inlet side of the energy storage tank. Under the connection mode, the energy storage working medium from the indoor heat exchanger 101 can be divided into two flow path flow directions, wherein one of the flow paths is that the energy storage working medium directly flows into the outdoor heat exchange pipeline 203 without passing through the parallel pipe section 301, and then flows back to the indoor energy storage loop and flows into the energy storage box; and the other is that the energy storage working medium flows into the energy storage tank after passing through the parallel connection pipe section 301.
In the present embodiment, a first control valve 302 is disposed on the connecting pipe segment 301, and can be used to control the on/off of the flow path of the connecting pipe segment 301.
At least part of the outdoor heat exchange pipeline 203 is arranged in the outdoor heat exchanger 102, so that the energy storage working medium flowing through the outdoor heat exchange pipeline 203 can exchange heat with the outdoor heat exchanger 102.
Here, the outdoor heat exchange line 203 is provided with a second control valve 303, which can be used to control the on-off of the flow path of the first intermediate heat exchange line.
In this embodiment, because the energy storage medium flows in the indoor side and the outdoor side, in order to avoid normal use under a low-temperature working condition, the energy storage working medium needs to be a medium type which is not easy to freeze at a low temperature, such as ethylene glycol.
In some embodiments, the indoor heat exchanger 101 and/or the outdoor heat exchanger 102 is a three-medium heat exchanger having a refrigerant heat exchange tube section, an energy storage medium heat exchange tube section, and an air passage configured to enable heat exchange of any two or three of the refrigerant heat exchange tube section, the energy storage medium heat exchange tube section, and the air passage.
The three-medium heat exchanger shown in the above embodiment has a design substantially the same as or similar to that of the three-medium heat exchanger in the embodiment of fig. 1, and details are not repeated here.
Several alternative modes of operation of the air conditioning system shown in the embodiments of the present disclosure are described below:
cooling/heating of the refrigerant heat exchange module 100: the refrigerant heat exchange module 100 is used to deliver a low-temperature or high-temperature refrigerant to the indoor heat exchanger 101 at the indoor side to cool/heat the indoor air.
Indoor side cold/heat accumulation: when the air conditioning system operates in a refrigeration mode, the refrigerant heat exchange module 100 conveys a low-temperature refrigerant to the indoor heat exchanger 101, the refrigerant in the indoor heat exchanger 101 absorbs heat from the outside, an indoor energy storage loop is opened to circulate at the moment, an energy storage working medium can be refrigerated and cooled when flowing through the indoor heat exchanger 101, and then the energy storage working medium is changed into the low-temperature energy storage working medium and flows back to the energy storage box for storage; similarly, when the air conditioning system operates in the heating mode, the indoor energy storage loop starts to circulate, and drives the energy storage working medium to be heated and heated when flowing through the indoor heat exchanger 101, and then the medium-high temperature energy storage working medium flows back to the energy storage tank to be stored. This way is equivalent to phase change to increase the indoor side load when the air conditioner operates in the cooling/heating mode, and can store the excess cooling/heating quantity output by the outdoor unit.
The energy storage and heat exchange module utilizes cold storage refrigeration/heat storage to heat: when the air conditioning system stops the operation and refrigeration of the refrigerant heat exchange module 100, the indoor energy storage part 201 can be driven to convey a low-temperature energy storage working medium to the indoor heat exchanger 101, and the energy storage working medium is used for cooling air flowing through the indoor heat exchanger 101; similarly, when the refrigerant heat exchange module 100 stops operating and cooling, the air flowing through the indoor heat exchanger 101 may be heated by the energy storage working medium in a manner of conveying the medium-high temperature energy storage working medium to the indoor heat exchanger 101.
Fourthly, the energy storage heat exchange module heats up/cools down by utilizing the indoor and outdoor temperature difference: after absorbing the outdoor ambient heat from the outdoor heat exchanger 102, the outdoor heat exchange pipeline 203 transmits the heat to the indoor heat exchanger 101 through the indoor energy storage pipeline 202 and the indoor energy storage part 201, and heats the air flowing through the indoor heat exchanger 101, and the heat exchange mode is suitable for the condition that the outdoor ambient temperature is higher than the indoor ambient temperature and the indoor ambient temperature is lower than the target indoor ambient temperature set by the user; and after the indoor energy storage part 201 absorbs heat from the indoor side, the heat is transmitted to the outdoor heat exchanger 102 through the indoor energy storage pipeline 202 and the outdoor heat exchange pipeline 203, and the heat is dissipated to the outdoor environment, so that the heat of the indoor side is reduced and the temperature is lowered in the process, and the heat exchange mode is suitable for the condition that the outdoor environment temperature is lower than the indoor environment temperature and the target indoor environment temperature set by a user.
Fifthly, the energy storage heat exchange module carries out outer machine defrosting: the indoor energy storage part 201 transmits the heat absorbed by the indoor heat exchanger 101 or the heat stored by itself to the outdoor heat exchanger 102 through the indoor energy storage pipeline 202 and the outdoor heat exchange pipeline 203, so that the outdoor heat exchanger 102 can be heated and heated, and the defrosting purpose of the outdoor heat exchanger 102 can be achieved.
With reference to fig. 3, an embodiment of the present disclosure further discloses a control method for an air conditioning system, where the air conditioning system may be the air conditioning system as shown in the above embodiments, or other similar forms of air conditioning systems, for example, the air conditioning system includes a plurality of indoor units disposed in different indoor spaces, and each indoor unit is provided with an indoor heat exchanger; the air conditioning system also comprises an indoor energy storage part which can be controlled to be matched with the indoor heat exchanger to carry out bidirectional cold/heat transmission so as to store or release cold/heat.
The control method for the air conditioning system provided by the embodiment of the disclosure mainly comprises the following steps:
s101, when an air conditioning system runs, determining started indoor units and non-started indoor units;
optionally, after the indoor unit receives the power-on instruction, the indoor unit may generate a corresponding first operation code, where the first operation code represents that the indoor unit is currently in an operation state, that is, by querying that the indoor unit has the first operation code, it may be determined that the indoor unit is enabled.
When the indoor unit receives a shutdown instruction, the indoor unit deletes the first running code or generates another second running code, and the second running code represents that the indoor unit is currently in a non-running state, namely, the indoor unit can be determined to be not started by inquiring whether the indoor unit has no first running code or the second running code.
It should be noted that, the indoor unit activated in this embodiment mainly refers to an indoor unit that is actively triggered and activated by a user through a remote controller, an air conditioner operation panel, a mobile terminal application program, and the like, and may also be an indoor unit that is triggered and activated when some set conditions are met, for example, an air conditioner is set to be turned on and off at regular time, and an indoor unit that is operated after receiving an automatic turn-on instruction is turned on, or an air conditioner is set to be operated at automatic temperature control, and is switched from a sleep state to an operation state when the temperature does not meet a requirement.
S102, controlling at least one started indoor unit to operate in a first heat exchange mode, and controlling at least one non-started indoor unit to operate in a second heat exchange mode;
the first heat exchange mode is to utilize an indoor heat exchanger of the indoor unit to convey cold/heat to an indoor space; the second heat exchange mode is to utilize the indoor heat exchanger of the indoor unit to convey cold/heat to the indoor energy storage part.
The first heat exchange mode mainly refers to a functional mode that the air conditioning system operates according to conventional functional requirements such as temperature control, humidity control and the like, for example, under a high-temperature working condition in summer, the first heat exchange mode is a refrigeration mode, and at the moment, the functional requirement that the indoor heat exchanger of the indoor unit transmits cold energy to an indoor space so as to cool the indoor space is adopted; or in summer high-humidity working conditions, the first heat exchange mode is a dehumidification mode, and at the moment, the heat exchanger of the indoor unit is used for cooling indoor air flowing through the heat exchanger so as to meet the functional requirement of condensing air water vapor; or, under the low-temperature working condition in winter, the first heat exchange mode is a heating mode, and at the moment, the heat exchanger of the indoor unit transmits heat to the indoor space to meet the functional requirement of heating the indoor space.
In this embodiment, the specific operation state of the activated indoor unit in the first heat exchange mode, such as the target cooling/heating temperature, the rotation speed of the internal fan, and the like, may be independently controlled according to the setting parameters corresponding to each indoor unit.
The second heat exchange mode is to control one or more of the other indoor units which are not started to exchange heat between the refrigerant and the indoor energy storage part in the indoor heat exchanger and transmit the cold/heat to the indoor energy storage part for storage; when the second heat exchange mode is operated, the indoor unit takes the indoor energy storage part as a heat exchange object, and the influence on the temperature of the indoor space corresponding to the indoor unit is controlled to the minimum degree as much as possible.
By the method, the overall cold and heat load of the indoor unit is increased in a phase-changing manner under the condition that the ambient temperature of the indoor space corresponding to the indoor unit is not influenced, and partial redundant cold/heat output by the indoor unit can be stored. According to the sample disclosed embodiment, by controlling the operation of the air conditioning system module structure, the waste of redundant energy of the outdoor unit can be effectively reduced, and the actual utilization efficiency of the air conditioning system on the energy is improved.
It should be noted that, in order to distinguish the activated indoor unit from the deactivated indoor unit, although it is still necessary to start the operation of some of the deactivated indoor units and introduce the refrigerant for heat exchange in step S102, the deactivated indoor units are regarded as deactivated indoor units for heat exchange with the indoor energy storage unit, rather than the conventional functional requirements such as temperature and humidity control.
Illustratively, a certain air conditioner applying the control method of the application comprises 5 indoor units including a unit A, a unit B, a unit C, a unit D and a unit E; detecting the running states of 5 indoor machines at a certain time, wherein the detection result shows that 1 machine (A) is in a starting running state and 4 machines (B, C, D and E) are in a stopping state, at this time, the outdoor unit of the air conditioner actually operates to feed the refrigerant to the unit a, and since the outdoor unit power is generally high, the actual output power of the machine A is obviously larger than the current requirement of the machine A, the machine A can be controlled to still keep the current operation mode (the current operation mode is taken as a first heat exchange mode) to continue to operate, one or more of the machine B, the machine C, the machine D and the machine E are controlled to start to operate a second heat exchange mode, the redundant energy output by the outdoor unit of the air conditioning system can be digested by increasing other indoor units and exchanging heat with the indoor energy storage part, and the indoor environment temperature corresponding to the machine B, the machine C, the machine D and the machine E cannot be greatly influenced.
Except for the way that other inactive indoor units absorb the redundant energy in the embodiment, the basically same action can be realized by the way that the activated indoor units actively increase the load, and even if the activated indoor units also exchange heat with the indoor energy storage part; therefore, in still other alternative embodiments, after the operation of "determining the enabled indoor unit and the disabled indoor unit" in step S101 is performed, the method further includes: controlling at least one started indoor unit to operate a third heat exchange mode; the third heat exchange mode is to utilize the indoor heat exchanger of the indoor unit to convey cold/heat to the indoor space and the indoor energy storage part.
In this embodiment, when the indoor unit in the third heat exchange mode is operated, the objects of heat exchange of the refrigerant include the indoor air flowing through the indoor unit and the indoor energy storage unit, wherein the heat exchange between the refrigerant and the indoor air can maintain normal temperature control of the indoor space, and the heat exchange between the refrigerant and the indoor energy storage unit can absorb the redundant cold/heat of the refrigerant.
Exemplarily, in combination with the foregoing embodiment, the "one-drive-many" air conditioner includes 5 indoor units, i.e., an a unit, a B unit, a C unit, a D unit, and an E unit, and detects the operation states of the 5 indoor units at a certain time, and if the detection result is that 2 (the a unit and the C unit) are in the on operation state and 3 (the B unit, the D unit, and the E unit) are in the off state, the a unit may be controlled to still maintain the current operation mode (the current operation mode is used as the first heat exchange mode) to continue to operate, the C unit is controlled to operate the third heat exchange mode, and one or more of the B unit, the D unit, and the E unit are controlled to start to operate the second heat exchange mode.
In this embodiment, the third operation mode mainly refers to an operation of increasing heat exchange with the indoor energy storage unit on the basis of the heat exchange mode originally set by the indoor unit, and if the indoor unit is originally set to the operation cooling mode, the third operation mode is to increase heat exchange between the indoor energy storage unit and the refrigerant on the basis of continuously maintaining the cooling mode.
Optionally, after step S101, part or all of the enabled indoor units may be controlled to switch to the third heat exchange mode to operate.
In some optional embodiments, in order to achieve more precise control of the air conditioning system and enable the indoor unit operating in the second heat exchange mode to more accurately digest the excess energy of the outdoor unit, the control method of the present application further includes: determining the heat exchange demand of the indoor side according to the number of the started indoor units and the set operation parameters corresponding to the started indoor units; acquiring heat exchange supply of an outdoor unit of an air conditioning system; and determining the number of the machine bodies running the second heat exchange mode in the indoor unit which is not started and/or corresponding set running parameters according to the difference between the heat exchange demand of the indoor side and the heat exchange supply of the outdoor unit.
Exemplarily, in combination with the foregoing embodiment, the "one-drive-many" air conditioner includes 5 indoor units, i.e., a unit a, a unit B, a unit C, a unit D, and a unit E, and detects the operation states of the 5 indoor units at a certain time, where the detection result indicates that 1 unit (i.e., the unit a) is in the on-operation state and 4 units (i.e., the unit B, the unit C, the unit D, and the unit E) are in the off-state; wherein, the heat supply of the outdoor unit of the current air conditioner is defined as QOuter coverThe current heat demand of the A machine is QAThe difference Δ Q between the heat exchange demand of the indoor side and the heat exchange supply of the outdoor unit is QExternal medicineQAIf the amount of heat dissipated by each indoor unit when the second heat exchange mode is turned on is Q, and Q is about 1/2 Δ Q, it can be determined that two inactive indoor units need to be turned on to operate the second heat exchange mode, such as turning on the unit B and the unit C, in the above manner.
Optionally, the setting parameters corresponding to the second operation mode of the inactive indoor unit include, but are not limited to, one or more of the following: the total quantity of cold/heat quantity, the conveying speed and the conveying time length which are conveyed to the indoor energy storage part by the indoor heat exchanger of the indoor machine, and the like.
In this embodiment, by adjusting the setting parameters of different indoor units, what each indoor unit can actually digest is the outdoor unit energy (cooling capacity/heat capacity total), and then the number of the second heat exchange modes that actually need to be started and operated and the outdoor unit energy that is respectively allocated and stored can be influenced.
In some further optional embodiments, the control method for an air conditioning system of the present application further includes: if the indoor space corresponding to the started indoor unit reaches the set temperature, controlling the started indoor unit to operate a fourth heat exchange mode; the fourth heat exchange mode comprises the step of stopping the indoor heat exchanger of the indoor unit from conveying cold/heat to the indoor space, and the step of switching to the step of conveying cold/heat to the indoor space by using the indoor energy storage part.
In this embodiment, the fourth heat exchange mode is a refrigerant heat exchange stopping mode, and instead, the refrigeration and heating are performed by replacing the cold/heat quantity accumulated in the indoor energy storage part; for example, when the first heat exchange mode of the indoor unit operation is the cooling mode, the indoor energy storage part stores cold energy, after the operation of the refrigerant cooling is stopped, the indoor energy storage part can be controlled to convey the cold energy to the indoor heat exchanger, and the cold energy of the energy storage medium is used for continuously keeping the indoor air flowing through the indoor heat exchanger to be cooled, so that the stored cold energy is reused, meanwhile, the indoor space can keep the comfort of temperature for a longer time, and the use cost is reduced.
As shown in fig. 4, another control method for an air conditioning system, which may be the air conditioning system as shown in the above embodiments, or other similar forms of air conditioning systems, such as an air conditioning system including an indoor heat exchanger and an outdoor heat exchanger, is disclosed in the embodiments of the present disclosure; the air conditioning system also comprises an indoor energy storage part and an outdoor energy storage part, and each energy storage part can be controlled to be matched with a corresponding heat exchanger to carry out bidirectional cold/heat transmission so as to store or release cold/heat; and the indoor energy storage part and the outdoor energy storage part can be controlled to carry out heat exchange.
The control method for the air conditioning system provided by the embodiment of the disclosure mainly comprises the following steps:
s201, when an air conditioning system runs, acquiring a set target temperature of an indoor side, an indoor environment temperature and an outdoor environment temperature of an outdoor side;
optionally, the air conditioning system is provided with an outdoor sensor, and the outdoor sensor is configured to detect a real-time temperature of the outdoor environment, and the outdoor environment temperature of the outdoor side in step S201 can be detected by the outdoor sensor.
Optionally, the air conditioning system is accessed to the network server through a wifi network, and the outdoor ambient temperature of the area where the air conditioning system is currently located is obtained through the network server.
Optionally, the air conditioning system is provided with an indoor sensor, the indoor sensor may be configured to detect a real-time temperature of the indoor environment, and the indoor environment temperature of the indoor side in step S201 may be detected by the indoor sensor.
Optionally, the set target temperature may be a target cooling temperature corresponding to a cooling mode, or a target heating temperature corresponding to a heating mode. Here, when cooling needs to be performed on the indoor side, it corresponds to a target cooling temperature; when heat supply is needed to be carried out on the indoor side, the target heating temperature corresponds to the indoor side.
S202, if the indoor environment temperature is higher than the set target temperature of the indoor side and the set target temperature is higher than the outdoor environment temperature of the outdoor side, controlling to enter a first energy storage heat exchange mode;
the first energy storage heat exchange mode comprises the step of controlling the indoor energy storage part and the outdoor energy storage part to carry out heat exchange so as to convey outdoor side cold absorbed by the outdoor energy storage part to the indoor energy storage part; and controlling the indoor energy storage part to release the cold energy in the indoor heat exchanger so as to supply cold to the indoor side and reduce the temperature.
In this embodiment, indoor ambient temperature is greater than the target temperature of setting for of indoor side, and set for under the condition that target temperature is greater than the outdoor ambient temperature of outdoor side, through launching foretell first energy storage heat transfer mode, make the cold volume of outdoor side can introduce the indoor environment through the cooperation of indoor energy storage portion and outdoor energy storage portion, thereby reduce the ambient temperature of indoor side through the form with natural energy transfer, compare in the mode that adopts refrigerant heat transfer module to carry out the refrigerant and adjust the temperature, energy storage heat transfer mode use cost in this application is lower, thereby can effectively improve air conditioning system's efficiency.
In some optional embodiments, the "control to enter the first energy storage heat exchange mode" in step S202 further includes: and controlling the heat exchange efficiency parameters of the indoor energy storage part and the outdoor energy storage part and/or the cooling efficiency parameters of the indoor energy storage part according to the temperature difference between the set target temperature of the indoor side and the outdoor environment temperature of the outdoor side.
Here, the heat exchange efficiency parameter of the indoor energy storage part and the outdoor energy storage part includes a transfer rate of the energy storage working medium therebetween, and the cool discharge efficiency parameter of the indoor energy storage part includes a transfer rate of the energy storage working medium between the indoor energy storage part and the indoor heat exchanger.
Optionally, the heat exchange efficiency parameter has a positive correlation with the temperature difference between the set target temperature and the outdoor ambient temperature at the outdoor side, that is, the larger the temperature difference is, the higher the heat exchange efficiency parameter is set to be, so as to increase the rate of heat exchange between the indoor side and the outdoor side, thereby increasing the introduction of cold from the outdoor side to the indoor side.
Similarly, the cold release efficiency parameter and the temperature difference between the set target temperature and the outdoor environment temperature at the outdoor side are in a positive correlation relationship, that is, the larger the temperature difference is, the cold release efficiency parameter is set to be a higher numerical value so as to improve the release rate of cold to the indoor environment, thereby further accelerating the cooling effect to the indoor environment.
In some further optional embodiments, the control method for an air conditioning system of the present application further includes: and if the indoor ambient temperature is lower than the set target temperature of the indoor side and the set target temperature is lower than the outdoor ambient temperature of the outdoor side, controlling to enter a second energy storage heat exchange mode.
The second energy storage heat exchange mode comprises the step of controlling the indoor energy storage part and the outdoor energy storage part to carry out heat exchange so as to convey outdoor heat absorbed by the outdoor energy storage part to the indoor energy storage part; and controlling the indoor energy storage part to release heat in the indoor heat exchanger so as to supply heat to the indoor side and raise the temperature.
In this embodiment, indoor ambient temperature is less than the target temperature of setting for of indoor side, and set for under the condition that target temperature is less than the outdoor ambient temperature of outdoor side, through launching foretell second energy storage heat transfer mode, make the heat of outdoor side can introduce the indoor environment through the cooperation of indoor energy storage portion and outdoor energy storage portion, thereby through the ambient temperature of the form rising indoor side with natural energy transfer, compare in the mode that adopts refrigerant heat transfer module to carry out the refrigerant and adjust the temperature, energy storage heat transfer mode use cost in this application is lower, thereby can effectively improve air conditioning system's efficiency.
In some optional embodiments, the step of "controlling to enter the second energy storage heat exchange mode" further includes: and controlling the heat exchange efficiency parameters of the indoor energy storage part and the outdoor energy storage part and/or the heat release efficiency parameters of the indoor energy storage part according to the temperature difference between the set target temperature of the indoor side and the outdoor environment temperature of the outdoor side.
Here, the heat exchange efficiency parameter of the indoor energy storage portion and the outdoor energy storage portion includes a transfer rate of the energy storage working medium therebetween, and the heat release efficiency parameter of the indoor energy storage portion includes a transfer rate of the energy storage working medium between the indoor energy storage portion and the indoor heat exchanger.
Optionally, the heat exchange efficiency parameter has a positive correlation with a temperature difference between the set target temperature and the outdoor ambient temperature of the outdoor side, that is, the larger the temperature difference is, the higher the heat exchange efficiency parameter is set to be, so as to increase the rate of heat exchange between the indoor side and the outdoor side, thereby increasing the introduction of heat from the outdoor side to the indoor side.
Similarly, the heat release efficiency parameter has a positive correlation with the temperature difference between the set target temperature and the outdoor environment temperature outside the room, that is, the larger the temperature difference is, the higher the heat release efficiency parameter is set to be a higher value, so as to increase the release rate of heat to the indoor environment, thereby further accelerating the temperature rise effect to the indoor environment.
As shown in fig. 5, another control method for an air conditioning system, which may be the air conditioning system as shown in the above embodiments, or other similar forms of air conditioning systems, such as an air conditioning system including an indoor heat exchanger and an outdoor heat exchanger, is also disclosed in the embodiments of the present disclosure; the air conditioning system also comprises an indoor energy storage part and an outdoor energy storage part, and each energy storage part can be controlled to be matched with a corresponding heat exchanger to carry out bidirectional cold/heat transmission so as to store or release cold/heat; and the indoor energy storage part and the outdoor energy storage part can be controlled to carry out heat exchange.
The control method for the air conditioning system provided by the embodiment of the disclosure mainly comprises the following steps:
s301, determining that the outdoor unit frosting problem exists in the air conditioning system;
in some embodiments, a defrosting condition is preset in the air conditioning system, and when the defrosting condition is judged to be met, the problem that the outdoor unit of the air conditioning system frosts is determined; when the defrosting condition is judged not to be met, determining that the outdoor unit frosting problem does not exist in the air conditioning system;
optionally, the defrosting conditions include: the outdoor environment temperature is lower than the set temperature threshold. Optionally, the value of the temperature threshold is 0, -2, -5 ℃ and the like.
S302, controlling to enter an energy storage defrosting mode;
the energy storage defrosting mode comprises the steps of controlling the indoor energy storage part and the outdoor energy storage part to carry out heat exchange so as to convey heat of the indoor energy storage part to the outdoor energy storage part; and controlling the outdoor energy storage part to release heat in the outdoor heat exchanger so as to heat and defrost the outdoor heat exchanger.
In this embodiment, under the condition that there is the problem of frosting in the air conditioning system off-premises station, through launching foretell energy storage defrosting mode, make the heat of indoor side can pass through the cooperation of indoor energy storage portion and outdoor energy storage portion and introduce and put outdoor heat exchanger department to utilize the heat that indoor heat storage portion stored to heat outdoor heat exchanger, not only can play the effect of external machine defrosting, also can not influence the indoor set of refrigerant heat transfer module and to the normal heating of indoor side environment simultaneously.
In some optional embodiments, the "control to enter the energy storage defrosting mode" in step S302 further includes: determining the frosting degree of the outdoor unit; and controlling the heat exchange efficiency parameters of the indoor energy storage part and the outdoor energy storage part and/or the heat release efficiency parameters of the outdoor energy storage part according to the frosting degree of the frosting of the outdoor unit.
Optionally, the frosting degree of the outdoor unit may be further determined according to the related parameters of the defrosting judgment condition, for example, the frost-forming degree of the outdoor unit is determined according to a deviation between the current outdoor environment temperature and the set temperature threshold, generally, the larger the deviation between the outdoor environment temperature and the set temperature threshold, that is, the lower the outdoor environment temperature is, the higher the frosting degree of the outdoor unit is, and the two are in a positive correlation.
Here, the heat exchange efficiency parameter of the indoor energy storage portion and the outdoor energy storage portion includes a transfer rate of the energy storage working medium therebetween, and the heat release efficiency parameter of the outdoor energy storage portion includes a transfer rate of the energy storage working medium between the outdoor energy storage portion and the outdoor heat exchanger.
Optionally, the heat exchange efficiency parameter and the frosting degree are in a positive correlation, that is, the higher the frosting degree is, the higher the heat exchange efficiency parameter is set to be a higher value, so as to improve the rate of heat exchange between the indoor side and the outdoor side, and thus, the heat is accelerated to be introduced into the outdoor side from the indoor side for defrosting.
Similarly, the heat release efficiency parameter and the frosting degree are in a positive correlation relationship, namely the higher the frosting degree is, the higher the heat release efficiency parameter is set to be a higher numerical value so as to improve the release rate of heat to the outdoor heat exchanger, and further accelerate the defrosting effect of the outdoor heat exchanger.
As shown in fig. 6, an embodiment of the present disclosure provides a control device for an air conditioning system, which includes a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other through the bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call the logic instructions in the memory 101 to perform the control method for the air conditioning system of the above embodiment.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the control method for the air conditioning system in the above-described embodiment.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an air conditioning system, which comprises the control device for the air conditioning system.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described control method for an air conditioning system.
The disclosed embodiments provide a computer program product comprising a computer program stored on a computer-readable storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform the above-described control method for an air conditioning system.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be only one type of logical functional division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or the operations or steps may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims (14)

1. An air conditioning system, comprising:
the refrigerant heat exchange module comprises a compressor, an outdoor heat exchanger and an indoor heat exchanger and is connected through a refrigerant pipeline to form a refrigerant circulation loop;
the indoor energy storage heat exchange module comprises an indoor energy storage part, the indoor energy storage part is connected with the indoor heat exchanger to form an indoor energy storage loop, and the indoor energy storage part can store cold/heat from the indoor heat exchanger in a controlled manner or release the cold/heat to the indoor heat exchanger;
the outdoor energy storage heat exchange module comprises an outdoor energy storage part, the outdoor energy storage part is connected with the outdoor heat exchanger to form an outdoor energy storage loop, and the outdoor energy storage part can store cold/heat from the outdoor heat exchanger in a controlled manner or release the cold/heat to the outdoor heat exchanger;
the middle heat exchange module comprises a middle heat exchange part which is respectively communicated with the indoor energy storage part and the outdoor energy storage part, and the indoor energy storage part and the outdoor energy storage part can be controlled by the middle heat exchange part to perform heat exchange.
2. The air conditioning system of claim 1, wherein the indoor energy storage heat exchange module further comprises:
an indoor charging conduit configured to connect the indoor charging portion and the indoor heat exchanger to configure the indoor charging circuit; part of pipelines of the indoor energy storage pipeline are used as a connected pipeline section and are provided with first control valves for controlling the on-off of the connected pipeline section;
the two ends of the first intermediate heat exchange pipeline are connected with the parallel pipe sections in parallel, and at least part of pipelines of the intermediate heat exchange pipeline are arranged in the intermediate heat exchange part, so that the energy storage working medium flowing through the first intermediate heat exchange pipeline exchanges heat in the intermediate heat exchange part; and the first intermediate heat exchange pipeline is provided with a second control valve for controlling the on-off of the first intermediate heat exchange pipeline.
3. The air conditioning system according to claim 1 or 2, wherein the indoor energy storage portion includes:
the indoor energy storage box is connected in series with the indoor energy storage loop and is used for storing energy storage working media; the liquid inlet side and/or the liquid outlet side of the energy storage box are/is provided with an on-off valve;
and the indoor driving pump is connected in series with the indoor energy storage loop and is configured to controllably drive the energy storage working medium to circularly flow along the indoor energy storage loop.
4. The air conditioning system of claim 3, wherein the indoor energy storage portion further comprises one or more of the following components:
a first relief valve configured to conduct to relieve pressure when the indoor charging circuit flow path pressure is greater than a set pressure value;
the first filter is configured to filter impurities of the energy storage working medium flowing through the indoor energy storage tank;
the first expansion tank is configured to provide a variable volume space for volume change generated by change of cold and hot temperatures of the energy storage working medium in the indoor energy storage loop;
the first buffer tank is configured to store at least part of the energy storage working medium of the indoor energy storage loop and provide variable-volume space for volume change generated by cold and hot temperature change of the energy storage working medium.
5. The air conditioning system of claim 1, wherein the outdoor energy-storing heat exchange module further comprises:
an outdoor charging conduit configured to connect the outdoor charging section and the outdoor heat exchanger to configure the outdoor charging circuit;
at least part of pipelines of the outdoor energy storage pipeline are used as second intermediate heat exchange pipelines and arranged in the intermediate heat exchange part, so that energy storage working media flowing through the second intermediate heat exchange pipelines exchange heat in the intermediate heat exchange part;
and the outdoor energy storage pipeline is provided with a third control valve for controlling the on-off of the outdoor energy storage pipeline.
6. The air conditioning system as claimed in claim 1 or 5, wherein the outdoor energy storage portion includes:
the outdoor energy storage box is connected in series with the outdoor energy storage loop and is used for storing energy storage working media; the liquid inlet side and/or the liquid outlet side of the outdoor energy storage box are/is provided with an on-off valve;
and the outdoor driving pump is connected in series with the outdoor energy storage loop and is configured to controllably drive the energy storage working medium to circularly flow along the outdoor energy storage loop.
7. The air conditioning system of claim 6, wherein the outdoor energy storage portion further comprises one or more of:
a second relief valve configured to conduct to relieve pressure when the outdoor charging circuit flow path pressure is greater than a set pressure value;
the second filter is configured to filter impurities of the energy storage working medium flowing through the outdoor energy storage tank;
the second expansion tank is configured to provide a variable volume space for volume change generated by change of cold and hot temperatures of the energy storage working medium in the outdoor energy storage loop;
and the second buffer tank is configured to store at least part of the energy storage working medium of the outdoor energy storage loop and provide a variable volume space for the volume change generated by the change of the cold and hot temperature of the energy storage working medium.
8. The air conditioning system of claim 1, wherein the indoor and/or outdoor heat exchanger is a three-medium heat exchanger having a refrigerant heat exchange tube section, an energy storage medium heat exchange tube section, and an air passage configured to enable heat exchange of any two or three of the refrigerant heat exchange tube section, the energy storage medium heat exchange tube section, and the air passage.
9. The air conditioning system as claimed in claim 1 or 8, wherein the number of the indoor heat exchangers is plural, and the plural indoor heat exchangers are connected to the indoor energy storage circuit in parallel;
and a switching valve for controlling the on-off of the parallel pipeline of at least one indoor heat exchanger is arranged.
10. The utility model provides an air conditioning system, includes refrigerant heat transfer module, refrigerant heat transfer module includes compressor, outdoor heat exchanger and indoor heat exchanger to construct as a refrigerant circulation circuit through refrigerant pipe connection, its characterized in that still includes energy storage heat transfer module, energy storage heat transfer module includes:
the indoor energy storage part is connected with the indoor heat exchanger to form an indoor energy storage loop, and the indoor energy storage part can store cold/heat from the indoor heat exchanger in a controlled manner or release the cold/heat to the indoor heat exchanger;
an indoor charging conduit configured to connect the indoor charging portion and the indoor heat exchanger to configure the indoor charging circuit; part of pipelines of the indoor energy storage pipeline are used as a connected pipeline section and are provided with first control valves for controlling the on-off of the connected pipeline section;
the two ends of the outdoor heat exchange pipeline are connected with the parallel-connection pipe sections in parallel, and at least part of pipelines of the outdoor heat exchange pipeline are arranged in the outdoor heat exchanger so that the energy storage working medium flowing through the outdoor heat exchange pipeline can exchange heat with the outdoor heat exchanger; and the outdoor heat exchange pipeline is provided with a second control valve for controlling the on-off of the outdoor heat exchange pipeline.
11. The air conditioning system as claimed in claim 10, wherein the indoor energy storage part comprises:
the energy storage box is connected in series with the indoor energy storage loop and is used for storing energy storage working media; the liquid inlet side and/or the liquid outlet side of the energy storage box are/is provided with an on-off valve;
and the driving pump is connected in series with the indoor energy storage loop and is configured to controllably drive the energy storage working medium to circularly flow along the indoor energy storage loop.
12. The air conditioning system of claim 11, wherein the indoor energy storage portion further comprises one or more of the following components:
a relief valve configured to conduct to relieve pressure when the indoor charging circuit flow path pressure is greater than a set pressure value;
the filter is configured to filter impurities of the energy storage working medium flowing through the energy storage tank;
the expansion tank is configured to provide a variable volume space for volume change generated by change of cold and hot temperatures of the energy storage working medium in the indoor energy storage loop;
the buffer tank is configured to store at least part of the energy storage working medium of the indoor energy storage loop and provide variable volume space for volume change generated by cold and hot temperature change of the energy storage working medium.
13. An air conditioning system according to claim 10, 11 or 12, wherein the indoor and/or outdoor heat exchanger is a three-medium heat exchanger having a refrigerant heat exchange tube section, an energy storage medium heat exchange tube section and an air passage configured to enable heat exchange of any two or three of the refrigerant heat exchange tube section, the energy storage medium heat exchange tube section and the air passage.
14. The air conditioning system as claimed in claim 13, wherein said indoor heat exchangers are provided in plural numbers, and said plural indoor heat exchangers are connected to said indoor accumulator circuit in parallel with each other;
and a switching valve for controlling the on-off of the parallel pipeline of at least one indoor heat exchanger is arranged.
CN202210109314.XA 2022-01-28 2022-01-28 Air conditioning system Active CN114517944B (en)

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