CN216924804U - Heat storage defrosting air conditioning system - Google Patents

Abstract

The application relates to the technical field of air conditioners, and discloses a heat storage defrosting air conditioning system, includes: the heat storage system comprises a first three-medium heat exchanger, a second three-medium heat exchanger and a heat storage module. In this application, no matter make this heat accumulation defrosting air conditioning system operate under refrigeration or the mode of heating, the homoenergetic is saved the heat of condensation and is used for changing the frost and use to reduce the energy consumption, reduce this heat accumulation defrosting air conditioning system's the degree of difficulty of changing the frost, improve the operating stability of air conditioning system when changing the frost.

Description

Heat storage defrosting air conditioning system

Technical Field

The application relates to the technical field of air conditioners, in particular to a heat storage defrosting air conditioning system.

Background

Along with the improvement of standard of living, the user also constantly increases to the demand that the air conditioner refrigerates and heats, when the air conditioner operation is under the mode of refrigeration, outdoor chance gives out a large amount of condensation heat, cause thermal waste, for improving the energy utilization degree, condensation heat recovery unit has appeared, can realize the recycle to the condensation heat under the cooling mode, and the air conditioner is when heating in chilly winter, the phenomenon of frosting appears easily in the off-premises station, the evaporation efficiency of off-premises station can be influenced to the phenomenon of frosting, thereby influence the heating efficiency of air conditioner.

In the related art, an air conditioner defrosting system comprises a heat exchange water pipeline, a water pump, a domestic hot water tank, a heat storage water tank and a controller; the domestic hot water tank is connected through the water inlet of first ooff valve and heat transfer water pipeline, the hot water storage tank passes through the delivery port of second ooff valve and heat transfer water pipeline and connects, and heat transfer water pipeline, the hot water storage tank, domestic hot water tank and water pump are connected and are formed first water circulation route, the controller is used for monitoring the running state of air conditioner, and according to running state control water pump, the break-make of first ooff valve and second ooff valve, can utilize the heat of condensation of first water circulation route recovery air conditioner, be used for heating domestic hot water, and utilize domestic hot water to defrost the outer machine of air conditioner when the outer machine of air conditioner frosts.

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:

can only retrieve the condensation heat when the air conditioner refrigerates through first water circulation route, be in chilly winter mostly when the air conditioner heats moreover, if the external machine is defrosted through domestic hot water this moment, need provide domestic hot water with the help of the auxiliary heating structure, improved the energy consumption, the degree of difficulty that the external machine of increase air conditioner defrosts.

SUMMERY OF THE UTILITY MODEL

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 a heat storage defrosting air conditioning system, which reduces energy consumption, reduces the defrosting difficulty of the heat storage defrosting air conditioning system, and improves the operation stability of the air conditioning system during defrosting.

In some embodiments, a thermal storage defrosting air conditioning system, comprising: the heat storage device comprises a first three-medium heat exchanger, a second three-medium heat exchanger and a heat storage module. The first third medium heat exchanger is arranged indoors and comprises a first heat exchange channel and a second heat exchange channel, and heat can be exchanged between the first heat exchange channel and the second heat exchange channel; the second third medium heat exchanger is arranged outdoors and comprises a third heat exchange channel and a fourth heat exchange channel, heat can be exchanged between the third heat exchange channel and the fourth heat exchange channel, the first heat exchange channel is communicated with the third heat exchange channel through a refrigerant pipeline, and refrigerants in the first heat exchange channel and the third heat exchange channel can circulate through the refrigerant pipeline; the heat storage module is internally provided with a heat storage channel, the heat storage channel is communicated with the second heat exchange channel through a first pipeline to form a circulation loop, and the heat storage channel is communicated with the fourth heat exchange channel through a second pipeline to form a circulation loop; in the cooling mode, the second pipeline is opened, and the first pipeline is closed; in the heating mode, the first pipeline is opened, and the second pipeline is closed; in the defrosting mode, the second pipeline is opened, and the first pipeline is closed.

The heat storage defrosting air conditioning system provided by the embodiment of the disclosure can realize the following technical effects:

by arranging the first third medium heat exchanger and the second third medium heat exchanger, refrigerant circulation is carried out by utilizing a first heat exchange channel in the first third medium heat exchanger and a third heat exchange channel in the second third medium heat exchanger, in a refrigeration mode, a high-temperature and high-pressure refrigerant flows into a third heat exchange channel in the second third medium heat exchanger located outdoors to be condensed and released, at the moment, the second pipeline is controlled to be in an open circuit state, the first pipeline is in an open circuit state, the heat exchange medium in the fourth heat exchange channel can absorb condensation heat released from the third heat exchange channel and is conveyed into a heat storage channel through the second pipeline, in a heating mode, the high-temperature and high-pressure refrigerant flows into the first heat exchange channel in the first third medium heat exchanger located indoors to be condensed and released, at the moment, the first pipeline is controlled to be in the open circuit state, the second pipeline is in the open circuit state, and the heat exchange medium in the second heat exchange channel can absorb condensation heat released from the first heat exchange channel and is conveyed to the heat storage channel through the first pipeline In the hot passageway, utilize the heat accumulation module to save the heat of condensation, under the mode of changing frost, control second pipeline is in the access state, utilize heat transfer medium in the second pipeline absorbs the heat flow to the fourth heat transfer passageway of saving in the heat accumulation module to make the third heat transfer passageway absorb the heat and change the frost, no matter this heat accumulation changes the frost air conditioning system and operates under refrigeration or the mode of heating, the homoenergetic saves the heat of condensation and is used for changing the frost and use, in order to reduce the energy consumption, reduce the degree of difficulty that this heat accumulation changes the frost air conditioning system and change the frost, improve the operating stability of air conditioning system when changing the frost.

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 structural diagram of a heat storage defrosting air conditioning system provided by an embodiment of the disclosure;

FIG. 2 is a schematic diagram of the communication of a four-way valve provided by the embodiments of the present disclosure;

fig. 3 is a schematic structural diagram of a thermal storage module provided in an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a thermal storage chamber provided by embodiments of the present disclosure;

FIG. 5 is a schematic structural diagram of another thermal storage chamber provided by an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a second third medium heat exchanger provided by the embodiment of the disclosure;

FIG. 7 is a schematic structural diagram of another second third medium heat exchanger provided by the embodiment of the disclosure;

FIG. 8 is a schematic structural diagram of a first third medium heat exchanger provided by the embodiment of the disclosure;

fig. 9 is a schematic structural diagram of a refrigerant pipeline provided in the embodiment of the present disclosure;

FIG. 10 is a schematic view of the fifth heat exchange channel and the sixth heat exchange channel provided by an embodiment of the present disclosure communicating;

fig. 11 is a schematic structural diagram of a first pipeline and a second pipeline provided in an embodiment of the disclosure.

Reference numerals:

100. a first third medium heat exchanger; 110. a first heat exchange channel; 111. a first interface; 112. a second interface; 120. a second heat exchange channel; 130. a sixth heat exchange channel; 131. a seventh interface; 132. an eighth interface; 140. a second thermal insulation plate; 200. a second third medium heat exchanger; 210. a third heat exchange channel; 211. a third interface; 212. a fourth interface; 220. a fourth heat exchange channel; 230. an over-current gap; 240. a fifth heat exchange channel; 241. a fifth interface; 242. a sixth interface; 250. a first thermal insulation plate; 300. a heat storage module; 310. a heat storage channel; 311. heat storage fins; 320. a heat release channel; 321. a water inlet pipe; 322. a water outlet pipe; 323. a heat-releasing fin; 330. a heat storage chamber; 400. a refrigerant pipeline; 410. a main pipeline; 411. a first end; 412. a second end; 420. a first input terminal; 430. a second input terminal; 440. a third input terminal; 450. a fourth input terminal; 500. a first pipeline; 510. a first circulation pump; 520. a first solenoid valve; 600. a second pipeline; 610. a second circulation pump; 620. a second solenoid valve; 700. a four-way valve; 710. a first port; 720. a second port; 730. a third port; 740. a fourth port; 800. a compressor; 810. an output pipe; 820. an input tube.

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.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the disclosed embodiments can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in fig. 1 to 11, an embodiment of the present disclosure provides a heat storage defrosting air conditioning system, including: a first three-medium heat exchanger 100, a second three-medium heat exchanger 200, and a thermal storage module 300. The first three-medium heat exchanger 100 is arranged indoors, the first three-medium heat exchanger 100 comprises a first heat exchange channel 110 and a second heat exchange channel 120, and heat can be exchanged between the first heat exchange channel 110 and the second heat exchange channel 120; the second third medium heat exchanger 200 is arranged outdoors, the second third medium heat exchanger 200 comprises a third heat exchange channel 210 and a fourth heat exchange channel 220, heat can be exchanged between the third heat exchange channel 210 and the fourth heat exchange channel 220, the first heat exchange channel 110 is communicated with the third heat exchange channel 210 through a refrigerant pipeline 400, and refrigerants in the first heat exchange channel 110 and the third heat exchange channel 210 can circulate through the refrigerant pipeline 400; the heat storage module 300 is internally provided with a heat storage channel 310, the heat storage channel 310 is communicated with the second heat exchange channel 120 through a first pipeline 500 to form a circulation loop, and the heat storage channel 310 is communicated with the fourth heat exchange channel 220 through a second pipeline 600 to form a circulation loop; in the cooling mode, second circuit 600 is open and first circuit 500 is closed; in the heating mode, the first pipeline 500 is opened and the second pipeline 600 is closed; in the defrosting mode, the second pipe 600 is opened and the first pipe 500 is closed.

By arranging the first and second third medium heat exchangers 100 and 200 and circulating the refrigerant through the first and third heat exchange channels 110 and 210 in the first and second third medium heat exchangers 100 and 200, in the cooling mode, the high-temperature and high-pressure refrigerant flows into the third heat exchange channel 210 in the second third medium heat exchanger 200 located outdoors to perform condensation and heat release, at this time, the second pipeline 600 is controlled to be in the on-state, the first pipeline 500 is in the off-state, the heat exchange medium in the fourth heat exchange channel 220 can absorb the condensation heat released from the third heat exchange channel 210 and transmit the condensation heat to the heat storage channel 310 through the second pipeline 600, in the heating mode, the high-temperature and high-pressure refrigerant flows into the first heat exchange channel 110 in the first third medium heat exchanger 100 located indoors to perform condensation and heat release, at this time, the first pipeline 500 is controlled to be in an on-state, the second pipeline 600 is controlled to be in an off-state, the heat exchange medium in the second heat exchange channel 120 can absorb the condensation heat released by the first heat exchange channel 110 and convey the condensation heat to the heat storage channel 310 through the first pipeline 500, the heat storage module 300 is used for storing the condensation heat, the second pipeline 600 is controlled to be in an on-state in the defrosting mode, the heat exchange medium in the second pipeline 600 is used for absorbing the heat stored in the heat storage module 300 and flowing into the fourth heat exchange channel 220, so that the third heat exchange channel 210 absorbs the heat to defrost, and no matter the heat storage defrosting air conditioning system operates in the cooling or heating mode, the condensation heat can be stored for defrosting, so that energy consumption is reduced, the defrosting difficulty of the heat storage defrosting air conditioning system is reduced, and the operation stability of the defrosting system in defrosting is improved.

As shown in fig. 2, in some embodiments, the thermal storage defrosting air conditioning system further includes: a four-way valve 700 and a compressor 800. Thus, four-way valve 700 has a first port 710, a second port 720, a third port 730, and a fourth port 740; the compressor 800 has an output pipe 810 and an input pipe 820; the first heat exchange channel 110 has a first connection 111 and a second connection 112, the third heat exchange channel 210 has a third connection 211 and a fourth connection 212, the first connection 111 and the third connection 211 are communicated through a refrigerant pipeline 400, the second connection 112 is communicated with a first port 710 of the four-way valve 700, the fourth connection 212 is communicated with a second port 720 of the four-way valve 700, an output pipe 810 of the compressor 800 is communicated with a third port 730 of the four-way valve 700, and an input pipe 820 is communicated with a fourth port 740 of the four-way valve 700. In this way, the compressor 800, the four-way valve 700, the first heat exchange channel 110 of the first three-medium heat exchanger 100, and the third heat exchange channel 210 of the second three-medium heat exchanger 200 are communicated to form the refrigeration system of the heat and frost storage air conditioning system, and by controlling the communication relationship among the first port 710, the second port 720, the third port 730, and the fourth port 740 of the four-way valve 700, the high-temperature and high-pressure refrigerant output from the output pipe 810 of the compressor 800 flows to the first heat exchange channel 110 of the first three-medium heat exchanger 100 to heat the indoor environment, or flows to the third heat exchange channel 210 of the second three-medium heat exchanger 200 to release heat to the outdoor environment to cool the indoor environment.

In a specific embodiment, in the heating mode, the first port 710 and the third port 730 of the four-way valve 700 are communicated, the second port 720 and the fourth port 740 are communicated, a high-temperature and high-pressure refrigerant output by the compressor 800 flows into the first heat exchange channel 110 of the first three-medium heat exchanger 100 to be condensed and release heat, at this time, the first pipeline 500 is controlled to be opened, the second pipeline 600 is controlled to be closed, so that the second heat exchange channel 120 and the heat storage channel 310 form a circulation loop, the second heat exchange channel 120 is used for absorbing condensation heat of the first heat exchange channel 110, and the condensation heat is conveyed into the heat storage module 300 through the first pipeline 500 to be stored; in a refrigeration mode, the second port 720 of the four-way valve 700 is communicated with the third port 730, the first port 710 is communicated with the fourth port 740, a high-temperature and high-pressure refrigerant output by the compressor 800 flows into the third heat exchange channel 210 of the second third medium heat exchanger 200 to be condensed and released, at this time, the second pipeline 600 is controlled to be opened, the first pipeline 500 is controlled to be closed, so that the fourth heat exchange channel 220 and the heat storage channel 310 form a circulation loop, the fourth heat exchange channel 220 is used for absorbing the condensation heat of the third heat exchange channel 210, and the condensation heat is transmitted to the heat storage module 300 through the second pipeline 600 to be stored; in the heating mode, when the third heat exchange channel 210 of the second outdoor medium heat exchanger 200 frosts, the defrosting mode is started while heating is maintained, the second pipeline 600 is controlled to be opened, the first pipeline 500 is closed, heat stored in the heat storage module 300 is conveyed into the third heat exchange channel 210 through the second pipeline 600, the third heat exchange channel 210 is defrosted, the third heat exchange channel 210 can be defrosted well, the influence of defrosting on the heating efficiency of the air conditioning system can be reduced, and the comfort of the indoor environment is maintained.

Optionally, the heat storage defrosting air conditioning system further comprises: oil, a gas-liquid separator and an electronic expansion valve. The oil component is communicated with an output pipe 810 of the compressor 800; the gas-liquid separator is connected to the input pipe 820 of the compressor 800, and the electronic expansion valve is connected to the refrigerant pipe 400 between the first heat exchange channel 110 and the third heat exchange channel 210. Therefore, the refrigeration system of the heat storage defrosting air conditioning system is more perfect, and refrigeration and heating are better carried out.

It is understood that the type of the compressor 800 is not limited specifically, for example, a screw compressor, a dual-rotor inverter compressor, a dc inverter compressor or a brushless inverter compressor, etc., and preferably, the dc inverter compressor can be selected according to the actual situation.

Optionally, the first pipe 500, the second pipe 600, the second heat exchange channel 120, the fourth heat exchange channel 220 and the heat accumulation channel 310 are all filled with refrigerant. In this way, the coolant is used to better absorb the condensation heat released by the first heat exchange channel 110 or the third heat exchange channel 210, and the absorbed condensation heat is conveyed to the heat storage module 300 by the coolant for storage, so that the recovery efficiency of the condensation heat is improved.

Alternatively, the coolant includes, but is not limited to: water or ethylene glycol. Therefore, the cold carrying capacity of the water and the glycol is strong and easy to obtain, and the water or the glycol is used as the secondary refrigerant, so that the conduction efficiency of condensation heat can be improved, and the heat storage efficiency is improved.

In some embodiments, as shown in fig. 3, a heat releasing channel 320 is further disposed inside the thermal storage module 300, and one end of the heat releasing channel 320 is communicated with the water inlet pipe 321, and the other end is communicated with the water outlet pipe 322. Like this, through setting up heat release channel 320 to utilize inlet tube 321 to lead to water in to heat release channel 320, the hydroenergy can absorb the heat of condensation of saving in heat accumulation module 300 and heat up, and the water of intensification discharges through outlet pipe 322 and supplies life hot water to the user, thereby makes this heat accumulation defrosting air conditioning system no matter be in refrigeration or under the mode of heating, homoenergetic is through heat release channel 320 absorption heat of condensation in heat accumulation module 300 preparation life hot water, has improved user's experience.

Alternatively, the heat storage module 300 internally defines a heat storage chamber 330, and the heat storage channel 310 and the heat release channel 320 are both disposed in the heat storage chamber 330. In this way, the heat transferred to the heat storage channel 310 through the coolant in the first pipeline 500 or the second pipeline 600 can be stored in the heat storage cavity 330, when water is introduced into the heat release channel 320, the water in the heat release channel 320 can better absorb the heat stored in the heat storage cavity 330 to raise the temperature, so that the efficiency of preparing domestic hot water is improved, and when the third heat exchange channel 210 located outdoors frosts, the heat stored in the heat storage cavity 330 can be transferred to the third heat exchange channel 210 through the second pipeline 600 to defrost the third heat exchange channel 210.

Optionally, the heat storage cavity 330 is filled with a phase change heat storage material. Like this, through filling phase change heat storage material in heat accumulation chamber 330 is inside, utilize phase change heat storage material can the phase transition heat absorption or exothermic characteristic, absorb the heat deposit in heat accumulation passageway 310 in heat accumulation chamber 330, improve the heat accumulation volume in heat accumulation chamber 330, and then improve the recovery efficiency of condensation heat, when utilizing heat release passageway 320 to prepare life hot water, the heat of deposit in heat accumulation chamber 330 can be absorbed to the water of flowing through in the heat release passageway 320, phase change heat storage material's setting can increase with heat accumulation passageway 310 and heat release passageway 320's area of contact, further improve heat accumulation or heat release efficiency.

Optionally, the phase change heat storage material comprises one or more of: paraffin, expanded graphite, crystalline hydrated salts and molten salts. In this way, one or more phase change heat storage materials are filled in the heat storage cavity 330, so that heat in the heat storage channel 310 can be better absorbed to perform phase change heat storage, the heat storage capacity is improved, when water in the heat release channel 320 is heated, the above phase change heat storage materials can better transmit heat to the water to be heated, and the heating efficiency of the domestic hot water is improved.

Optionally, the phase change heat storage material is paraffin. Thus, the paraffin is a commonly used phase-change heat storage material, has good phase-change heat storage capacity, has small volume change when phase change occurs, has large filling amount in the heat storage cavity 330, is better contacted with the heat storage channel 310 and the heat release channel 320, and improves heat storage and heat release efficiency.

In one embodiment, as shown in fig. 4, a plurality of heat storage ribs 311 are disposed on an outer sidewall of the heat storage channel 310, a plurality of heat release ribs 323 are disposed on an outer sidewall of the heat release channel 320, and the plurality of heat storage ribs 311 and the plurality of heat release ribs 323 are alternately disposed in the heat storage cavity 330. In this way, the plurality of heat storage fins 311 are provided on the outer side wall of the heat storage channel 310, the plurality of heat release fins 323 are provided on the outer side wall of the heat release channel 320, the contact area between the heat storage channel 310 and the phase change heat storage material filled in the heat storage cavity 330 can be increased by the heat storage fins 311, the heat storage efficiency is improved, the contact area between the heat release channel 320 and the phase change heat storage material filled in the heat storage cavity 330 can be increased by the heat release fins 323, the heat release efficiency is improved, and the plurality of heat storage fins 311 and the plurality of heat release fins 323 are arranged in a staggered manner, so that the heat conduction between the plurality of heat storage fins 311 and the plurality of heat release fins 323 is more uniform, and the heat release efficiency is further improved.

Alternatively, the heat storage channel 310 and the heat release channel 320 are both in a circular pipe structure, the heat storage channel 310 and the heat release channel 320 are arranged side by side, the outer circumferential wall of the heat storage channel 310 in the radial direction is provided with a plurality of heat storage ribs 311, the outer circumferential wall of the heat release channel 320 in the radial direction is provided with a plurality of heat release ribs 323, and the heat storage ribs 311 arranged on the side of the heat storage channel 310 opposite to the heat release channel 320 are arranged in a staggered manner with the heat release ribs 323. Thus, the heat storage channels 310 of the circular pipe structure are easily communicated with the heat release channels 320, the outer circumferential wall in the radial direction of the heat storage channels 310 is provided with a plurality of heat storage ribs 311, the outer peripheral wall in the radial direction of the heat release channel 320 is provided with a plurality of heat release ribs 323, further increasing the heat exchange area of the heat storage channels 310 and the heat release channel 320 with the phase change heat storage material in the heat storage chamber 330, and the heat storage fins 311 provided on the side of the heat storage channel 310 opposite to the heat release channel 320 are staggered from the heat release fins 323, so that while the heat storage fins 311 of the heat storage channel 310 exchange heat with the heat release fins 323, and can exchange heat with the phase change heat storage material in the rest area of the heat storage cavity 330, so that the heat release fins 323 of the heat release channel 320 absorb the heat of the heat storage fins 311, the heat stored in the phase change heat storage material in the rest area in the heat storage cavity 330 can be absorbed, and the heat in the heat storage area and the heat release area in the heat storage cavity 330 can be kept uniform.

It is understood that the heat storage area refers to the radiation area of the heat storage channels 310 and the heat storage fins 311 within the heat storage cavity 330, and the heat radiation area refers to the radiation area of the heat radiation channels 320 and the heat radiation fins 323; when the heat storage air-conditioning system stops working and heat storage stops, the phase change heat storage material in the heat storage area can exchange heat with the heat release channel 320 to release heat; when the water in the heat release channel 320 stops flowing and no longer absorbs the heat in the heat release area, the phase change heat storage material in the heat release area can also absorb the heat in the heat storage channel 310 for heat storage.

In another embodiment, shown in fig. 5, the heat releasing channel 320 is a spiral pipe structure, and the heat releasing channel 320 is disposed around the heat accumulating channel 310. Like this, can increase the area of contact of the phase change heat storage material of heat release channel 320 and heat accumulation chamber 330 intussuseption, improve heat release pipeline and phase change heat storage material's heat exchange efficiency, and then improve heat release efficiency, the more high-efficient convection current heats through the water of heat release channel 320, accelerate the efficiency of preparation life hot water, and because the heat accumulation volume of the phase change heat storage material around heat accumulation channel 310 is great, the heat is higher, consequently, encircle heat accumulation channel 310 with spiral pipeline structure's heat release channel 320 and set up, can absorb the heat of phase change heat storage material deposit better.

Optionally, the thermal storage channel 310 is also a spiral pipe structure. Therefore, the contact area between the heat storage channel 310 and the phase change heat storage material filled in the heat storage cavity 330 can be increased, the heat storage efficiency is improved, the shape of the heat storage channel 310 can be better adapted to the shape of the heat release channel 320, the heat absorbed by the phase change heat storage material can be stably supplied to the heat release channel 320 for use, and the preparation efficiency of the domestic hot water is guaranteed.

Alternatively, the inner diameter of the ring formed by the heat release channel 320 is larger than the outer diameter of the ring formed by the heat accumulation channel 310 in a plan view. In this way, the heat release channel 320 can be better arranged around the heat storage channel 310, and the heat storage and release efficiency is improved.

As shown in connection with fig. 6, 7 and 8, in some embodiments, the fourth heat exchange channel 220 is disposed within the third heat exchange channel 210 with a flow passing gap 230 between an outer wall of the fourth heat exchange channel 220 and an inner wall of the third heat exchange channel 210. In this way, the fourth heat exchange channel 220 is disposed in the third heat exchange channel 210, the refrigerant in the third heat exchange channel 210 can flow in the flow passage gap 230, the heat exchange area between the refrigerant in the third heat exchange channel 210 and the coolant in the fourth heat exchange channel 220 is increased, in the cooling mode, the refrigerant circulating in the third heat exchange channel 210 is in a condensation heat release state, the coolant circulating in the fourth heat exchange channel 220 can more efficiently absorb condensation heat, in the defrosting mode, the coolant in the fourth heat exchange channel 220 can more efficiently apply heat to the third heat exchange channel 210, and the defrosting effect of the third heat exchange channel 210 is improved.

Optionally, the third heat exchanging channel 210 and the fourth heat exchanging channel 220 are both in a coil structure, the flow surface of the fourth heat exchanging channel 220 is concentric with the flow surface of the third heat exchanging channel 210, and the outer diameter of the flow surface of the fourth heat exchanging channel 220 is smaller than the inner diameter of the flow surface of the third heat exchanging channel 210. Therefore, an annular overflowing gap 230 is formed between the inner wall of the third heat exchanging channel 210 and the outer wall of the fourth heat exchanging channel 220, the fourth heat exchanging channel 220 can be surrounded by the refrigerant flowing in the overflowing gap 230, the contact area between the fourth heat exchanging channel 220 and the refrigerant is further increased, the heat exchanging efficiency between the secondary refrigerant and the refrigerant is improved, the condensation heat is better absorbed, or the heat of the secondary refrigerant is better utilized to defrost the third heat exchanging channel 210.

Optionally, the second heat exchange channel 120 in the first third medium heat exchanger 100 is also disposed in the first heat exchange channel 110, a flow passing gap is also provided between an outer wall of the second heat exchange channel 120 and an inner wall of the first heat exchange channel 110, and the structures of the second heat exchange channel 120 and the first heat exchange channel 110 are the same as those of the fourth heat exchange channel 220 and the third heat exchange channel 210. In this way, the heat exchange area between the refrigerant in the first heat exchange channel 110 and the second heat exchange channel 120 can be increased, in the heating mode, the refrigerant in the first heat exchange channel 110 is condensed to generate heat, the secondary refrigerant in the second heat exchange channel 120 can more efficiently absorb the condensation heat to be stored, in the defrosting mode, the secondary refrigerant in the heat storage channel 310 absorbs the condensation heat of the first heat exchange channel 110 stored in the heat storage cavity 330, and transmits the condensation heat to the third heat exchange channel 210 located outdoors through the second pipeline 600, so as to defrost the third heat exchange channel 210.

As shown in connection with fig. 7, in some embodiments, the second tertiary medium heat exchanger 200 further comprises: and a fifth heat exchange channel 240. The fifth heat exchange channel 240 is communicated with the first heat exchange channel 110 through a refrigerant pipeline 400, and a first thermal insulation plate 250 is arranged between the fifth heat exchange channel 240 and the third heat exchange channel 210. Thus, when the heat-storage defrosting air conditioning system operates in the heating mode, the refrigerant in the second third medium heat exchanger 200 located outdoors evaporates and absorbs heat, because the fourth heat exchange channel 220 of the second third medium heat exchanger 200 is located in the third heat exchange channel 210, if the refrigerant flows into the third heat exchange channel 210 to evaporate and absorb heat, the evaporation efficiency of the refrigerant is affected by the coolant in the fourth heat exchange channel 220, the fifth heat exchange channel 240 is arranged in the second third medium heat exchanger 200, the first temperature insulating plate 250 is arranged between the fifth heat exchange channel 240 and the third heat exchange channel 210, so that the refrigerant flows into the fifth heat exchange channel 240 to evaporate and absorb heat to exchange heat with the outdoor environment, the influence of the coolant in the fourth heat exchange channel 220 on the evaporation efficiency is avoided, and the condensation heat release efficiency of the refrigerant in the first heat exchange channel 110 of the first third medium heat exchanger 100 is improved, the second heat exchange channel 120 is better utilized to absorb the condensation heat for storage while the heating effect is ensured.

As shown in connection with fig. 8, in some embodiments, the first tertiary medium heat exchanger 100 further comprises: a sixth heat exchange channel 130. The sixth heat exchange channel 130 is communicated with the third heat exchange channel 210 through a refrigerant pipeline 400, and a second thermal insulation plate 140 is disposed between the sixth heat exchange channel 130 and the first heat exchange channel 110. Thus, when the heat-storage defrosting air conditioning system operates in a cooling mode, the refrigerant in the first three-medium heat exchanger 100 located indoors evaporates and absorbs heat, because the second heat exchange channel 120 of the first three-medium heat exchanger 100 is located in the first heat exchange channel 110, if the refrigerant flows into the first heat exchange channel 110 to evaporate, the coolant in the second heat exchange channel 120 affects the evaporation efficiency of the refrigerant, thereby affecting the cooling effect, the sixth heat exchange channel 130 is arranged in the first three-medium heat exchanger 100, and the second thermal insulation plate 140 is arranged between the sixth heat exchange channel 130 and the first heat exchange channel 110, so that the refrigerant flows into the sixth heat exchange channel 130 to evaporate and absorb heat, the indoor environment is better cooled, the influence of the coolant in the second heat exchange channel 120 on the evaporation efficiency is avoided, and the condensation heat release efficiency of the refrigerant in the third heat exchange channel 210 of the second three-medium heat exchanger 200 can be improved, the condensing heat is better absorbed and stored through the fourth heat exchange channel 220, and the domestic hot water is prepared.

Referring to fig. 9 and 10, in one embodiment, the refrigerant pipeline 400 includes: main pipeline 410, first input 420, second input 430, third input 440, and fourth input 450. Main conduit 410 has a first end 411 and a second end 412; first input end 420 communicates first end 411 with first heat exchange channel 110; second input 430 communicates first end 411 with sixth heat exchange channel 130; third input 440 communicates second end 412 with third heat exchange channel 210; fourth input 450 communicates second end 412 with fifth heat exchange channel 240; the first input end 420 is provided with a first switch valve, the second input end 430 is provided with a second switch valve, the third input end 440 is provided with a third switch valve, and the fourth input end 450 is provided with a fourth switch valve. In this way, since the first third medium heat exchanger 100 has the first heat exchange channel 110 and the sixth heat exchange channel 130 for the circulation of the cooling medium, and the second third medium heat exchanger 200 has the third heat exchange channel 210 and the fifth heat exchange channel 240 for the circulation of the cooling medium, according to the cooling or heating mode of the thermal storage and defrosting air conditioning system, the opening and closing of the first switch valve, the second switch valve, the third switch valve and the fourth switch valve respectively arranged on the first input end 420, the second input end 430, the third input end 440 and the fourth input end 450 are controlled, and the communication relationship between the first heat exchange channel 110 and the sixth heat exchange channel 130 and the third heat exchange channel 210 and the fifth heat exchange channel 240 is selectively controlled, so that the cooling or heating efficiency of the thermal storage and defrosting air conditioning system is improved, and the recovery efficiency of the condensation heat is guaranteed.

Optionally, the first interface 111 of the first heat exchanging channel 110 communicates with the first end 411 of the main pipeline 410 through the first input end 420, and the third interface 211 of the third heat exchanging channel 210 communicates with the second end 412 of the main pipeline 410 through the third input end 440.

Optionally, the fifth heat exchanging channel 240 has a fifth interface 241 and a sixth interface 242, the fifth interface 241 is communicated with the second end 412 of the main pipeline 410 through a fourth input end 450, and the sixth interface 242 is communicated with a second port 720 of the four-way valve 700; the sixth heat exchanging channel 130 has a seventh port 131 and an eighth port 132, the seventh port 131 is communicated with the first end 411 of the main pipeline 410 through the second input end 430, and the eighth port 132 is communicated with the first port 710 of the four-way valve 700.

In a specific embodiment, when the heat storage defrosting air conditioning system operates in a cooling mode, the second switch valve and the third switch valve are controlled to be opened, the first switch valve and the second switch valve are closed, at this time, a high-temperature and high-pressure refrigerant output by the compressor 800 flows into the third heat exchange channel 210 to be condensed and release heat, the condensed heat is absorbed by the fourth heat exchange channel 220 and is stored in the heat storage cavity 330, the condensed refrigerant flows into the main pipeline 410 through the third input end 440 and then flows into the sixth heat exchange channel 130 through the second input end 430 to be evaporated and absorb heat, and therefore, the influence of the secondary refrigerant in the second heat exchange channel 120 on the evaporation efficiency is avoided; when the heat-storage defrosting air-conditioning system operates in a heating mode, the first switch valve and the fourth switch valve are controlled to be opened, the second switch valve and the third switch valve are closed, at the moment, a high-temperature and high-pressure refrigerant output by the compressor 800 flows into the first heat exchange channel 110 to be condensed and release heat, the condensed heat is absorbed through the second heat exchange channel 120 and is transferred into the heat storage cavity 330 to be stored, the condensed refrigerant flows into the main pipeline 410 through the first input end 420 and then flows into the fifth heat exchange channel 240 through the fourth input end 450 to be evaporated and absorb heat, and therefore the influence of the refrigerant in the fourth heat exchange channel 220 on the evaporation efficiency is avoided.

In another specific embodiment, in the heating mode of the heat storage and defrosting air conditioning system, when it is detected that the fifth heat exchange channel 240 located outdoors is frosted, the fourth switch valve may be controlled to be closed, the third switch valve is opened, so that the refrigerant flows into the third heat exchange channel 210 to evaporate and absorb heat, and the influence of frosting on the evaporation efficiency is reduced, if frosting also occurs after the third heat exchange channel 210 continuously evaporates and absorbs heat, at this time, the second pipeline 600 is controlled to be opened, and the refrigerant in the second pipeline 600 absorbs the heat in the heat storage cavity 330 and acts on the third heat exchange channel 210, so that the third heat exchange channel 210 is defrosted.

As shown in fig. 11, in some embodiments, the first pipeline 500 is communicated with a first circulation pump 510 and a first electromagnetic valve 520, and the second pipeline 600 is communicated with a second circulation pump 610 and a second electromagnetic valve 620. In this way, the first circulation pump 510 can drive the circulation loop formed by the first pipeline 500, the second heat exchange channel 120 and the heat storage channel 310 to circulate, the second circulation pump 610 can drive the circulation loop formed by the second pipeline 600, the fourth heat exchange channel 220 and the heat storage channel 310 to circulate, and the first electromagnetic valve 520 and the second electromagnetic valve 620 can control the on-off of the first pipeline 500 and the second pipeline 600, so that the condensation heat can be better recovered.

It is understood that the first pipe 500 is open, which means that the first circulation pump 510 and the first electromagnetic valve 520 communicated in the first pipe 500 are open, and the first pipe 500 is closed, which means that the first circulation pump 510 and the first electromagnetic valve 520 are closed; the second pipeline 600 is opened, that is, the second circulation pump 610 and the second electromagnetic valve 620 communicated with the second pipeline 600 are opened, and the second pipeline 600 is closed, so that the second circulation pump 610 and the second electromagnetic valve 620 are closed.

In a specific embodiment, when the heat storage defrosting air conditioning system operates in a cooling mode, the first circulating pump 510 and the first electromagnetic valve 520 are controlled to be closed, the second circulating pump 610 and the second electromagnetic valve 620 are controlled to be opened, so that the coolant in the circulating loop formed by the second pipeline 600, the fourth heat exchange channel 220 and the heat storage channel 310 circulates, at this time, the coolant in the third heat exchange channel 210 located outdoors condenses to release heat, the coolant absorbs the condensation heat when flowing through the fourth heat exchange channel 220, the coolant exchanges heat with the phase change heat storage material filled in the heat storage cavity 330 when flowing through the heat storage channel 310, and the condensation heat is stored by the phase change heat storage material; under the condition that the heat storage defrosting air-conditioning system operates in the heating mode, the first circulating pump 510 and the first electromagnetic valve 520 are controlled to be opened, the second circulating pump 610 and the second electromagnetic valve 620 are controlled to be closed, secondary refrigerant in a circulating loop formed by the first pipeline 500, the second heat exchange channel 120 and the heat storage channel 310 circulates, at the moment, the refrigerant in the indoor first heat exchange channel 110 is condensed to release heat, the secondary refrigerant absorbs the condensation heat when flowing through the second heat exchange channel 120, and the absorbed condensation heat is stored in the heat storage cavity 330 through the secondary refrigerant; under the condition that the heat storage defrosting air conditioning system operates in the defrosting mode, the first circulating pump 510 and the first electromagnetic valve 520 are controlled to be closed, the second circulating pump 610 and the second electromagnetic valve 620 are controlled to be opened, the secondary refrigerant in the circulating loop formed by the second pipeline 600, the fourth heat exchange channel 220 and the heat storage channel 310 circulates, the secondary refrigerant is used for absorbing the heat stored in the heat storage cavity 330, and the third heat exchange channel 210 located outdoors is defrosted.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural 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. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A heat storage defrosting air conditioning system characterized by comprising:

the heat exchanger comprises a first three-medium heat exchanger (100) arranged indoors, wherein the first three-medium heat exchanger (100) comprises a first heat exchange channel (110) and a second heat exchange channel (120), and heat can be exchanged between the first heat exchange channel (110) and the second heat exchange channel (120);

the second third medium heat exchanger (200) is arranged outdoors, the second third medium heat exchanger (200) comprises a third heat exchange channel (210) and a fourth heat exchange channel (220), heat can be exchanged between the third heat exchange channel (210) and the fourth heat exchange channel (220), the first heat exchange channel (110) is communicated with the third heat exchange channel (210) through a refrigerant pipeline (400), and refrigerants in the first heat exchange channel (110) and the third heat exchange channel (210) can circulate through the refrigerant pipeline (400);

the heat storage module (300) is internally provided with a heat storage channel (310), the heat storage channel (310) is communicated with the second heat exchange channel (120) through a first pipeline (500) to form a circulation loop, and the heat storage channel (310) is communicated with the fourth heat exchange channel (220) through a second pipeline (600) to form a circulation loop;

in cooling mode, the second circuit (600) is open and the first circuit (500) is closed; in the heating mode, the first circuit (500) is open and the second circuit (600) is closed; in defrost mode, the second line (600) is open and the first line (500) is closed.

2. The heat storage defrosting air conditioning system according to claim 1, wherein a heat release channel (320) is further arranged inside the heat storage module (300), one end of the heat release channel (320) is communicated with a water inlet pipe (321), and the other end of the heat release channel is communicated with a water outlet pipe (322).

3. The heat storage defrosting air conditioning system according to claim 2, wherein the heat storage module (300) internally defines a heat storage chamber (330), and the heat storage passage (310) and the heat release passage (320) are both disposed in the heat storage chamber (330).

4. The heat-storing defrosting air conditioning system according to claim 3, wherein the heat-storing chamber (330) is internally filled with a phase change heat-storing material.

5. The heat storage and defrosting air conditioning system according to any one of claims 1 to 4, wherein the fourth heat exchange channel (220) is disposed in the third heat exchange channel (210), and a flow passing gap (230) is provided between an outer wall of the fourth heat exchange channel (220) and an inner wall of the third heat exchange channel (210).

6. The heat storage defrosting air conditioning system according to claim 5, wherein the third heat exchange channel (210) and the fourth heat exchange channel (220) are both in a coil structure, the flow surface of the fourth heat exchange channel (220) is concentric with the flow surface of the third heat exchange channel (210), and the outer diameter of the flow surface of the fourth heat exchange channel (220) is smaller than the inner diameter of the flow surface of the third heat exchange channel (210).

7. The heat storage defrosting air conditioning system of claim 5 wherein the second tertiary medium heat exchanger (200) further comprises:

and the fifth heat exchange channel (240) is communicated with the first heat exchange channel (110) through the refrigerant pipeline (400), and a first heat insulation plate (250) is arranged between the fifth heat exchange channel (240) and the third heat exchange channel (210).

8. The heat storage defrosting air conditioning system according to claim 7, wherein the first third medium heat exchanger (100) further comprises:

and the sixth heat exchange channel (130) is communicated with the third heat exchange channel (210) through the refrigerant pipeline (400), and a second heat insulation plate (140) is arranged between the sixth heat exchange channel (130) and the first heat exchange channel (110).

9. The heat-storage defrosting air conditioning system according to claim 8, wherein the refrigerant line (400) comprises:

a main conduit (410) having a first end (411) and a second end (412);

a first input (420) communicating the first end (411) with the first heat exchange channel (110);

a second input (430) communicating said first end (411) with said sixth heat exchange channel (130);

a third input (440) communicating said second end (412) with said third heat exchange channel (210);

a fourth input (450) communicating said second end (412) with said fifth heat exchange channel (240);

the first input end (420) is provided with a first switch valve, the second input end (430) is provided with a second switch valve, the third input end (440) is provided with a third switch valve, and the fourth input end (450) is provided with a fourth switch valve.

10. The heat storage and defrosting air conditioning system according to any one of claims 1 to 4, wherein a first circulation pump (510) and a first electromagnetic valve (520) are communicated in the first pipeline (500), and a second circulation pump (610) and a second electromagnetic valve (620) are communicated in the second pipeline (600).

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