CN110864575A - Phase-change energy-storage heat exchange device and air conditioning equipment - Google Patents
Phase-change energy-storage heat exchange device and air conditioning equipment Download PDFInfo
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- CN110864575A CN110864575A CN201810981470.9A CN201810981470A CN110864575A CN 110864575 A CN110864575 A CN 110864575A CN 201810981470 A CN201810981470 A CN 201810981470A CN 110864575 A CN110864575 A CN 110864575A
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- heat exchanger
- phase
- phase change
- change material
- heat exchange
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/021—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
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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
- F24F5/0021—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice using phase change material [PCM] for storage
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- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- 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
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- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F11/00—Arrangements for sealing leaky tubes and conduits
- F28F11/02—Arrangements for sealing leaky tubes and conduits using obturating elements, e.g. washers, inserted and operated independently of each other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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- 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
Abstract
The invention provides a phase-change energy-storage heat exchange device and air conditioning equipment, wherein the phase-change energy-storage heat exchange device comprises: a container member having a receiving space capable of receiving a phase change material; the detachable connection structure is arranged between the heat exchanger and the container piece, so that the heat exchanger and the container piece can be assembled or disassembled, and when the heat exchanger is assembled with the container piece, the heat exchanger can exchange heat with the phase-change material in the accommodating space. The phase change energy storage heat transfer device that this scheme provided, it is removable between container spare and the heat exchanger, can realize placing in suitable environment quick regeneration after pulling down container spare, perhaps, directly change container spare or phase change material in it after pulling down container spare, it is long when all can realizing shortening the refrigeration interval, promote the use of product and experience.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a phase change energy storage and heat exchange device and air conditioning equipment.
Background
The prior art provides a scheme for condensing air conditioning equipment by adopting an energy storage material to exchange heat with a heat exchanger, but in the process of implementing the invention, an inventor finds that the prior art has the following problems: air conditioning equipment refrigeration operation need be to the heat release regeneration of energy storage material after a period, however, the latent heat of energy storage material is big, and natural regeneration is slow, and this directly leads to air conditioning equipment's refrigeration interval cycle length, has reduced user's use and has experienced.
Disclosure of Invention
In order to solve at least one of the above technical problems, an object of the present invention is to provide a phase change energy storage heat exchange device.
The invention also aims to provide air conditioning equipment with the phase change energy storage heat exchange device.
In order to achieve the above object, an embodiment of the first aspect of the present invention provides a phase change energy storage heat exchange device, including: a container member having a receiving space capable of receiving a phase change material; the heat exchanger, the heat exchanger with be equipped with detachable connection structure between the container spare, make the heat exchanger with can assemble or split between the container spare, wherein, when the heat exchanger with the container spare is assembled, the heat exchanger can with be located the phase change material heat transfer in the accommodation space.
The phase change energy storage heat exchange device provided by the above embodiment of the invention is used for connecting the container piece for containing the phase change material with the heat exchanger through the detachable connecting structure so as to realize the detachment between the container piece and the heat exchanger, thus, when the phase change material in the container piece needs to be regenerated, the container piece can be selectively detached from the heat exchanger and then placed in an environment suitable for the regeneration of the phase change material in the container piece (such as a refrigerating chamber and a freezing chamber of a refrigerator or other cool environments with ventilation, shadow and the like), the regeneration environment is more flexibly selected, the regeneration efficiency of the phase change material in the container piece can be favorably improved, the purposes of shortening the regeneration period and the refrigerating interval duration can be realized, even, the standby container piece can be directly replaced, or the phase change material in the container piece can be replaced after being removed, the purposes of shortening the regeneration period and the refrigerating interval duration can also be realized, thereby realizing the use experience of promoting the product.
In addition, the phase change energy storage heat exchange device provided by the embodiment of the invention also has the following additional technical characteristics:
in the above technical scheme, the phase change energy storage heat exchange device further comprises: the phase change material is contained in the containing space.
In this scheme, set up and have phase change material in the accommodation space of container spare to can directly use after making the product purchase, avoid being used for forgetting the hidden danger that does not splendid attire phase change material direct operation, be particularly suitable for the condition that accommodation space is closed structure, more do benefit to the phase change material encapsulation, reduce the leakage risk.
In any of the above technical solutions, the container member includes: a housing, be formed with in the casing accommodation space, the casing is equipped with the grafting passageway, wherein, can dismantle connection structure includes the grafting passageway, the heat exchanger can insert the grafting passageway in order with container spare equipment, and can withdraw from the grafting passageway in order with container spare split.
In this scheme, the connection structure can be dismantled including the grafting passageway so that can form the dismantled connection of grafting form between heat exchanger and the casing to the setting, and equipment easy operation, convenience.
In one technical scheme of the invention, the insertion channel comprises an insertion hole, the insertion hole is communicated with the accommodating space, the heat exchanger is inserted into the shell along the insertion hole and is in sealed connection with the insertion hole, and the part of the heat exchanger extending into the shell is positioned in the accommodating space and can be in contact with the phase-change material.
In this scheme, set up the jack, the heat exchanger peg graft in the jack and with jack sealing connection, realize the dismantled connection of grafting form between the heat exchanger container spare, and convenient assembling, and ensure that phase change material can not leak, make the heat exchanger stretch into the position in the casing along the jack in addition and extend accommodation space with phase change material direct contact, and like this, the thermal resistance between heat exchanger and the phase change material is few, and heat transfer efficiency is high, thereby promote phase change energy storage heat transfer device's condensation efficiency, promote its place air conditioning equipment's efficiency.
In the technical scheme, the heat exchanger and the jack are provided with the sealing elements and are in sealing connection through the sealing elements.
In this scheme, set up the heat exchanger and be equipped with the sealing member and pass through sealing member sealing connection with the jack position, wherein, the sealing connection that the sealing member formed has simple structure, sealed reliable, advantage with low costs, and sealing member interchangeability is strong, is favorable to the long-term maintenance of product like this, can do benefit to the use cost who reduces the product.
Certainly, the scheme is not limited to this, and those skilled in the art can design the casing and the heat exchanger to directly form an interference fit seal, a labyrinth seal, and the like at the matching position according to the requirement, and there are various structural forms that can realize the sealing connection, which are not listed one by one, but all belong to the protection scope of the scheme on the premise of not departing from the design concept.
In one technical scheme of the present invention, the insertion channel includes an inner shell, the inner shell includes a shell wall and a cavity surrounded by the shell wall, the cavity has an opening, the heat exchanger is inserted into the cavity along the opening, the inner shell extends into the accommodating space, and the shell wall of the inner shell is used for separating the heat exchanger from the phase change material.
In this scheme, be provided with the inner shell in the casing and be used for supplying the heat exchanger to insert and hold the heat exchanger, when splendid attire phase change material and heat exchanger cartridge in the inner shell in accommodation space, the inner shell wall can separate heat exchanger and phase change material, that is, the casing of container spare and inner shell form the structure similar to the jacketed type, make phase change material be located and press from both sides the cover and separate with phase change material through pressing from both sides the cover inlayer (being the conch wall of inner shell), can realize sealing phase change material more easily like this, prevent phase change material leakage, and because heat exchanger and phase change material contactless, when the split goes out the heat exchanger, the heat exchanger can not take out phase change material, can further promote the use experience, and simultaneously, also can reduce phase change material and corrode the heat exchanger, do benefit to extension product life.
In the above technical solution, the shell wall is a heat conducting body.
In this scheme, the conch wall is the heat conduction plastid, and preferably the higher metalloplast of coefficient of heat conductivity, more select for the higher copper of heat conductivity, copper alloy, aluminium, aluminum alloy etc. in the metal, can promote the heat transfer efficiency between phase change material and the heat exchanger to promote phase change energy storage heat transfer device's condensation efficiency, promote its place air conditioning equipment's efficiency.
In any one of the above technical solutions, the heat exchanger includes a heat exchange tube, and the heat exchange tube can be inserted into the insertion channel and can exit from the insertion channel; and/or the position of the plug-in channel on the shell is positioned on the upper side of the liquid surface of the phase change material.
In this scheme, set up the heat exchanger and include the heat exchange tube, and insert the grafting passageway or withdraw from the grafting passageway with its heat exchange tube and form loading and unloading between its and the container spare, wherein, heat exchange tube simple structure sets up like this and can promote cartridge complex convenience, also is more convenient for seal the leak protection to the grafting position.
The position of the inserting channel on the shell is located on the upper side of the liquid level of the phase-change material, so that the leakage risk of the phase-change material can be reduced, the reliability of a product is improved, correspondingly, the sealing requirement of the inserting position of the heat exchanger can also be reduced, the sealing structure of the product is favorably simplified, and the product cost is reduced.
In any of the above technical solutions, the heat exchanger is an inclined-tube heat exchanger, and/or the heat exchanger includes a plurality of coil portions or tube array portions formed by bending one heat exchange tube.
In the scheme, the heat exchanger is an inclined-insertion-tube heat exchanger which is simple in shape, can be conveniently assembled and disassembled with the container piece, and can ensure high heat transfer efficiency.
Set up the heat exchanger and include a plurality of coil pipe portion or tubulation portion of bending the structure by a heat exchange tube, can reduce the intubate number of times simultaneously guaranteeing heat exchanger heat transfer area like this, simplify the use operation of product, promote product convenience in use, also reduced leakage point quantity simultaneously, reduce the leakage risk, promote product reliability.
An embodiment of a second aspect of the present invention provides an air conditioning apparatus, including the phase change energy storage heat exchange device in any of the above technical solutions.
The air conditioning equipment provided by the embodiment of the invention has all the beneficial effects by being provided with the phase change energy storage heat exchange device in any technical scheme, and the details are not repeated herein.
Preferably, the air conditioning apparatus is a mobile air conditioner.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic exploded view of a phase change energy storage heat exchange device according to an embodiment of the present invention;
FIG. 2 is a schematic partial sectional structural view of a phase change energy storage heat exchange device according to an embodiment of the invention;
FIG. 3 is a schematic partial sectional structural view of a phase change energy storage heat exchange device according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of an air conditioning apparatus according to an embodiment of the present invention in a cooling mode;
fig. 5 is a schematic structural diagram of an air conditioning apparatus in a regeneration mode according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:
110 air-cooled heat exchanger, 111 first port, 112 second port, 120 heat exchanger, 121 third port, 122 fourth port, 130 container part, 131 shell, 132 jack, 133 seal, 134 inner shell, 1341 shell wall, 140 fan, 150 compressor, 151 exhaust, 152 return port, 160 reversing device, 171 first capillary tube, 172 first check valve, 173 second capillary tube, 174 second check valve, 180 phase change material.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The phase change energy storage and heat exchange device according to some embodiments of the present invention is described below with reference to fig. 1 to 3.
As shown in fig. 1 to fig. 3, an embodiment of the first aspect of the present invention provides a phase-change energy-storage heat exchange device, including: a containment member 130 and a heat exchanger 120.
Specifically, the container member 130 has a receiving space capable of receiving the phase change material 180; a detachable connection structure is arranged between the heat exchanger 120 and the container member 130, so that the heat exchanger 120 and the container member 130 can be assembled or disassembled, wherein when the heat exchanger 120 and the container member 130 are assembled, the heat exchanger 120 can exchange heat with the phase change material 180 in the accommodating space.
The phase change energy storage heat exchange device provided by the above embodiment of the present invention is configured to connect the container member 130 for containing the phase change material 180 and the heat exchanger 120 through a detachable connection structure, so as to achieve the purpose that the container member 130 and the heat exchanger 120 can be detached from each other, and thus, when the phase change material 180 in the container member 130 needs to be regenerated, the container member 130 can be selectively detached from the heat exchanger 120 and then placed in an environment suitable for regenerating the phase change material 180 therein (for example, a refrigerating chamber and a freezing chamber of a refrigerator or other ventilated and shaded environments) for regeneration, the regeneration environment is more flexibly selected, which is beneficial to improving the regeneration efficiency of the phase change material 180 in the container member 130, and the purposes of shortening the regeneration period and shortening the time interval of refrigeration are achieved, and even, the container member 130 can be directly replaced, or the phase change material 180 in the container member 130 is replaced after being removed (specifically, for the solid-liquid phase change material 180, when the phase change material 180 absorbs heat and becomes saturated into a liquid state, the container member 130 is detached, the liquid phase change material 180 in the container member 130 is led out, the solid phase change material 180 is changed, and then the container member 130 is installed back on the heat exchanger 120, so that the heat exchanger 120 in the phase change energy storage and heat exchange device can be continuously used as a condenser in air conditioning equipment).
Preferably, the phase-change energy-storage heat exchange device further comprises a phase-change material 180, and the phase-change material 180 is accommodated in the accommodating space, so that the accommodating space of the container member 130 of the product is provided with the phase-change material 180, so that the product can be directly used after being purchased, and the hidden trouble that the user forgets to directly operate the phase-change material 180 which is not accommodated is avoided.
In an embodiment of the present invention, as shown in fig. 1, the container member 130 includes a housing 131, a receiving space is formed in the housing 131, the housing 131 is provided with a plugging channel, wherein the detachable connection structure includes the plugging channel, the heat exchanger 120 can be inserted into the plugging channel to be assembled with the container member 130, and can be withdrawn from the plugging channel to be disassembled from the container member 130, which has advantages of simple structure and convenient assembly operation.
Detailed description of the preferred embodiments example 1 (shown in FIG. 2)
The container 130 includes a housing 131, a receiving space is formed in the housing 131, the housing 131 is provided with an insertion channel, specifically, the housing 131 is provided with a jack 132 as the insertion channel, the jack 132 is communicated with the receiving space in the housing 131, the heat exchanger 120 is inserted into the housing 131 along the jack 132 and is hermetically connected to the jack 132, and a portion of the heat exchanger 120 extending into the housing 131 is located in the receiving space and can contact with the phase change material 180.
More specifically, a sealing member 133 is arranged at the insertion hole 132, the sealing member 133 is installed at the insertion hole 132 of the housing 131 and forms a sealing fit with the housing 131, a through hole is formed in the sealing member 133, the heat exchanger 120 is in interference fit with the through hole to form a sealing fit with the sealing member 133, and the insertion hole 132 of the housing 131 and the heat exchanger 120 are in sealing connection through the sealing member 133, but the sealing member 133 may also be installed on the heat exchanger 120 according to requirements in the structure.
Optionally, the sealing member 133 is a rubber ring, a silicone ring, or the like.
Detailed description of the preferred embodiments 2 (shown in FIG. 3)
The container component 130 includes a housing 131, a receiving space is formed in the housing 131, the housing 131 is provided with an insertion channel, specifically, an inner housing 134 is provided in the housing 131 as the insertion channel, the inner housing 134 includes a housing wall 1341 and a housing cavity surrounded by the housing wall 1341, the housing cavity has an opening, the heat exchanger 120 is inserted into the housing cavity along the opening, the inner housing 134 extends into the receiving space, and the housing wall 1341 thereof separates the heat exchanger 120 from the phase change material 180 in the receiving space. That is, the shell 131 of the container component 130 and the inner shell 134 form a jacket-like structure, so that the phase change material 180 is located in the jacket and separated from the phase change material 180 by the jacket inner layer (i.e., the shell wall 1341 of the inner shell 134), and thus the phase change material 180 can be more easily sealed, and leakage of the phase change material 180 is prevented, and because the heat exchanger 120 is not in contact with the phase change material 180, when the heat exchanger 120 is disassembled, the heat exchanger 120 does not take out the phase change material 180, thereby further improving the use experience, and simultaneously reducing corrosion of the phase change material 180 to the heat exchanger 120, and being beneficial to prolonging the service life of the product.
Preferably, the shell wall 1341 is a thermal conductive body, preferably a metal body with a higher thermal conductivity coefficient, and more preferably copper, copper alloy, aluminum alloy, or the like with a higher thermal conductivity in metals, so as to improve the heat transfer efficiency between the phase change material 180 and the heat exchanger 120, thereby improving the condensation efficiency of the phase change energy storage heat exchanger and the energy efficiency of the air conditioning equipment where the phase change energy storage heat exchanger is located.
In any of the above embodiments, as shown in fig. 1, the heat exchanger 120 includes a heat exchange tube, the heat exchange tube can be inserted into the insertion channel and can exit from the insertion channel, wherein the heat exchange tube has a simple structure, so that the convenience of insertion and matching can be improved, and the insertion part can be sealed and prevented from leaking more conveniently.
Further, as shown in fig. 1, the heat exchanger 120 is an inclined-insertion-tube heat exchanger, which has a simple shape and can be conveniently assembled with and disassembled from the container member 130, thereby improving the convenience of use of the product.
Preferably, as shown in fig. 1, the heat exchanger 120 includes a plurality of coil portions or tube array portions formed by bending a heat exchange tube, for example, bending the coil portions or the tube array portions into a wave shape or a serpentine shape, and more preferably, the heat exchanger 120 is a structure formed by integrally bending and processing a tube, so that the heat exchange area of the heat exchanger 120 can be ensured, the number of times of inserting the tube can be reduced, the use and operation of the product can be simplified, the use convenience of the product can be improved, the number of leakage points can be reduced, the leakage risk can be reduced, and the reliability of the product can be.
In any of the above embodiments, preferably, the position of the insertion channel on the housing 131 is located on the upper side of the liquid level of the phase change material 180, so that the position of the insertion channel is higher than the liquid level of the phase change material 180, the risk of leakage of the phase change material 180 can be reduced, the reliability of the product is improved, and accordingly, the requirement on the sealing performance of the insertion portion of the heat exchanger 120 can also be reduced, which is beneficial to simplifying the sealing structure of the product and reducing the product cost.
An air conditioning apparatus according to some embodiments of the present invention will be described with reference to fig. 4 and 5.
As shown in fig. 4 and 5, an air conditioning apparatus provided by an embodiment of a second aspect of the present invention includes the phase-change energy-storage heat exchanging device described in any of the above technical solutions.
The air conditioning equipment provided by the embodiment of the invention has all the beneficial effects by being provided with the phase change energy storage heat exchange device in any technical scheme, and the details are not repeated herein.
Detailed description of the preferred embodiments 3 (see FIGS. 4 and 5)
The air conditioning equipment is a mobile air conditioner, and specifically comprises an air-cooled heat exchanger 110, a phase change energy storage heat exchange device, a fan 140, a compressor 150, a reversing device 160 and the like.
The phase-change energy-storage heat exchange device comprises a heat exchanger 120 and a container member 130, wherein the container member 130 is provided with a containing space capable of containing a phase-change material 180; a detachable connection structure is arranged between the heat exchanger 120 and the container member 130, so that the heat exchanger 120 and the container member 130 can be assembled or disassembled, wherein when the heat exchanger 120 and the container member 130 are assembled, the heat exchanger 120 can exchange heat with the phase change material 180 in the accommodating space.
The fan 140 is used to drive the airflow to exchange heat with the air-cooled heat exchanger 110.
The air-cooled heat exchanger 110 has two interfaces for circulating a refrigerant, which are a first interface 111 and a second interface 112, respectively, one of the first interface 111 and the second interface 112 is a refrigerant inlet for allowing the refrigerant to enter the air-cooled heat exchanger 110, and the other is a refrigerant outlet for discharging the refrigerant, where definition of the refrigerant inlet and the refrigerant outlet is not absolute, and the first interface 111 and the second interface 112, and the refrigerant inlet and the refrigerant outlet need to be distinguished according to the refrigeration and regeneration working conditions and to be exchanged when the refrigeration and regeneration working conditions are switched. In addition, the heat exchanger 120 has two ports for flowing a refrigerant, i.e., a third port 121 and a fourth port 122, and the third port 121 and the fourth port 122 can be understood similarly to the first port 111 and the second port 112.
The compressor 150 has an air outlet 151 and an air return outlet 152, the reversing device 160 is a four-way valve, the four-way valve includes four interfaces, two interfaces of the four-way valve are correspondingly connected to the air return outlet 152 and the air outlet 151 of the compressor 150, and the other two interfaces of the four-way valve are correspondingly connected to the fourth interface 122 of the heat exchanger 120 and the second interface 112 of the air-cooled heat exchanger 110, as shown in fig. 1, when the air-conditioning apparatus operates in the cooling mode, the four-way valve controls the conduction between the air return outlet 151 and the fourth interface 122 of the heat exchanger 120, and controls the conduction between the air return outlet 152 and the second interface 112 of the air-cooled heat exchanger 110, as shown in fig. 2, when the air-conditioning apparatus operates in the regeneration mode, the four-way valve controls the conduction between the air return outlet 152 and the.
In addition, the first port 111 of the air-cooled heat exchanger 110 and the third port 121 of the heat exchanger 120 are connected by a refrigerant pipeline, specifically, the refrigerant pipeline includes a first one-way throttling branch and a second one-way throttling branch, wherein the first one-way throttling branch is communicated with the first port 111 and the third port 121, the refrigerant pipeline includes a first one-way valve 172 for realizing one-way conduction and reverse cut-off from the third port 121 of the heat exchanger 120 to the first port 111 of the air-cooled heat exchanger 110 and a first capillary tube 171 for playing a throttling function, the second one-way throttling branch is communicated with the first port 111 and the third port 121, the refrigerant pipeline includes a second one-way valve 174 for realizing one-way conduction and reverse cut-off from the first port 111 of the air-cooled heat exchanger 110 to the third port 121 of the heat exchanger 120 and a second capillary tube 173 for playing a throttling function, the length of the first capillary tube 171 is shorter than that of the second capillary tube 173, the pressure drop of the refrigerant throttled by the first one-way throttling branch is smaller than that of the refrigerant throttled by the second one-way throttling branch, so that the refrigeration mode and the regeneration mode can operate at the optimal evaporation temperature and the optimal condensation temperature, and the circulation efficiency is improved.
As shown in fig. 1, when the air conditioning equipment operates in a cooling mode, the air conditioning equipment moves to an indoor environment requiring cooling, at this time, an electromagnetic coil of the four-way valve is in a power-off state, as shown in fig. 1, an exhaust port 151 of the compressor 150 is communicated with the heat exchanger 120, a return port 152 of the compressor 150 is communicated with the air-cooled heat exchanger 110, at this time, the heat exchanger 120 is a condenser of the system, the air-cooled heat exchanger 110 is a system evaporator, a refrigerant absorbs indoor heat through the air-cooled heat exchanger 110 to achieve a cooling effect, the refrigerant in the air-cooled heat exchanger 110 enters the compressor 150 along the return port 152 of the compressor 150 after passing through the four-way valve, and enters the heat exchanger 120 through the four-way valve after being compressed in the compressor 150, wherein heat emitted by the heat exchanger 120 is absorbed by the phase-change material 180, and, meanwhile, the phase change material 180 changes from a solid state to a liquid state when it absorbs heat to some extent. After the heat exchanger 120, the refrigerant flows through the first capillary tube 171 and the first check valve 172, and enters the air-cooled heat exchanger 110 again after being throttled, thereby forming a closed-circuit heat storage refrigeration cycle. The compressor 150 operates at a lower frequency in the refrigeration mode, but the frequency can be adjusted within a preset low-frequency interval, so that a user can select different refrigeration powers, it can be understood that the preset low-frequency interval is relative to the preset high-frequency interval, and the value within the preset low-frequency interval is lower than the value within the preset high-frequency interval, and is set in a specific value range thereof.
As shown in fig. 2, when the mobile air conditioner operates in the regeneration mode, the air conditioner moves to the outdoor environment, and at this time, the solenoid coil of the four-way valve is in the power-on state, as shown in fig. 2, the exhaust port 151 of the compressor 150 is communicated with the air-cooled heat exchanger 110, and the return port 152 of the compressor 150 is communicated with the heat exchanger 120, at this time, the heat exchanger 120 is a condenser of the system, and the air-cooled heat exchanger 110 is an evaporator of the system. The refrigerant absorbs the heat stored by the phase change material 180 through the heat exchanger 120, so that the phase change material 180 is changed from a liquid state to a solid state, that is, heat is released and heat can be stored again, and the phase change material 180 is regenerated, then the refrigerant in the heat exchanger 120 enters the compressor 150 through the four-way valve along the air return port 152 of the compressor 150, is compressed in the compressor 150 and then enters the air-cooled heat exchanger 110 through the four-way valve, in the air-cooled heat exchanger 110, the refrigerant exchanges heat with air through the air-cooled heat exchanger 110 to reduce the temperature, then flows through the second capillary tube 173 and the second one-way valve 174, and enters the heat exchanger 120 again after throttling, so that a closed heat. In the regeneration mode, the compressor 150 and the fan 140 are operated at a higher frequency, so as to quickly conduct the heat stored in the phase change material 180 to the outdoor environment, specifically, if the compressor 150 is operated at a frequency within a preset high frequency range, and the fan 140 is operated at a frequency higher than that in the refrigeration mode, thereby increasing the heat release regeneration speed of the phase change material 180.
In this scheme, when the phase change material 180 in the container member 130 needs to be regenerated, the container member 130 may be selectively detached from the heat exchanger 120 and placed in an environment suitable for the regeneration of the phase change material 180 therein to be regenerated, or the container member 130 may be directly replaced for standby, or the phase change material 180 in the container member 130 may be replaced after being removed, so as to achieve the purposes of shortening the regeneration period and shortening the time interval of refrigeration, and of course, besides the aforementioned mode of detaching the container member 130 for regeneration, a mode of operating the regeneration mode may also be selected to achieve the regeneration of the phase change material 180.
In addition, the scheme can realize the stability of controlling the evaporation temperature and the condensation temperature by using the characteristic that the temperature fluctuation of the phase change material 180 in the phase change area is small, so as to realize approximate calorie circulation, thereby improving the system efficiency, in addition, in order to ensure that the system runs at higher efficiency in two modes, the phase change temperature of the phase change material 180 is preferably between 15 ℃ and 40 ℃, the phase change can be solid-liquid or vapor-liquid phase change material 180, the capillary tube can also be replaced by an electronic expansion valve, and the electronic expansion valve adjusts the optimal throttling depth in the two modes by adjusting the opening degree.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A phase change energy storage heat transfer device, its characterized in that includes:
a container member having a receiving space capable of receiving a phase change material;
the heat exchanger, the heat exchanger with be equipped with detachable connection structure between the container spare, make the heat exchanger with can assemble or split between the container spare, wherein, when the heat exchanger with the container spare is assembled, the heat exchanger can with be located the phase change material heat transfer in the accommodation space.
2. The phase change energy storage heat exchange device of claim 1, further comprising:
the phase change material is contained in the containing space.
3. The phase change energy storage heat exchange device according to claim 1 or 2, wherein the container member comprises:
a housing, be formed with in the casing accommodation space, the casing is equipped with the grafting passageway, wherein, can dismantle connection structure includes the grafting passageway, the heat exchanger can insert the grafting passageway in order with container spare equipment, and can withdraw from the grafting passageway in order with container spare split.
4. The phase-change energy-storage heat exchange device according to claim 3,
the inserting channel comprises an inserting hole, the inserting hole is communicated with the accommodating space, the heat exchanger is inserted into the shell along the inserting hole and is in sealing connection with the inserting hole, and the part of the heat exchanger extending into the shell is located in the accommodating space and can be in contact with the phase-change material.
5. The phase-change energy-storage heat exchange device according to claim 4,
the heat exchanger and the jack part are provided with sealing pieces and are in sealing connection through the sealing pieces.
6. The phase-change energy-storage heat exchange device according to claim 3,
the plug-in channel comprises an inner shell, the inner shell comprises a shell wall and a cavity surrounded by the shell wall, the cavity is provided with an opening, the heat exchanger is inserted into the cavity along the opening, the inner shell extends into the accommodating space, and the shell wall is used for separating the heat exchanger from the phase-change material.
7. The phase-change energy-storage heat exchange device of claim 6,
the shell wall is a heat conducting body.
8. The phase-change energy-storage heat exchange device according to claim 3,
the heat exchanger comprises a heat exchange tube which can be inserted into the inserting channel and can exit from the inserting channel; and/or
The position of the plug-in channel on the shell is located on the upper side of the liquid level of the phase-change material.
9. The phase-change energy-storage heat exchange device according to claim 3,
the heat exchanger is an inclined-insertion-tube heat exchanger, and/or the heat exchanger comprises a plurality of coil pipe parts or tube array parts formed by bending one heat exchange tube.
10. An air conditioning apparatus, characterized by comprising a phase change energy storage heat exchange device according to any one of claims 1 to 9.
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| CN201810981470.9A CN110864575A (en) | 2018-08-27 | 2018-08-27 | Phase-change energy-storage heat exchange device and air conditioning equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810981470.9A CN110864575A (en) | 2018-08-27 | 2018-08-27 | Phase-change energy-storage heat exchange device and air conditioning equipment |
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| CN110864575A true CN110864575A (en) | 2020-03-06 |
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