CN111435026B - Radiant convection heat exchanger and air conditioner having the same - Google Patents
Radiant convection heat exchanger and air conditioner having the same Download PDFInfo
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- CN111435026B CN111435026B CN201910028727.3A CN201910028727A CN111435026B CN 111435026 B CN111435026 B CN 111435026B CN 201910028727 A CN201910028727 A CN 201910028727A CN 111435026 B CN111435026 B CN 111435026B
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- heat exchange
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- F25B39/00—Evaporators; Condensers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明涉及辐射对流式换热器及具有其的空调器。具体地，辐射对流式换热器包括：辐射换热部，呈两端开口的筒状，配置成从其内壁面吸收热量或冷量，并从其外壁面向外辐射热量或冷量；第一对流换热部，设置于辐射换热部的内侧，配置成产生热量或冷量，且将热量或冷量传递给流经辐射换热部内侧的空气，以及将热量或冷量传递给辐射换热部的内壁面；和第二对流换热部，配置成产生热量或冷量，且与流经其的空气进行热交换；辐射换热部设置于第二对流换热部的上侧或下侧。可以在保证制热或制冷能力的前提下，减少人体的吹风感，增加人体热舒适性。辐射换热部和第一对流换热部主要承担显热复合；第二对流换热部主要承担潜热负荷。
The present invention relates to a radiation convection heat exchanger and an air conditioner having the same. Specifically, the radiation convection heat exchanger includes: a radiation heat exchange portion, which is in the shape of a cylinder with openings at both ends, configured to absorb heat or cold from its inner wall surface, and radiate heat or cold from its outer wall surface to the outside; a first convection heat exchange portion, which is arranged on the inner side of the radiation heat exchange portion, configured to generate heat or cold, and transfer the heat or cold to the air flowing through the inner side of the radiation heat exchange portion, and transfer the heat or cold to the inner wall surface of the radiation heat exchange portion; and a second convection heat exchange portion, which is configured to generate heat or cold, and perform heat exchange with the air flowing through it; the radiation heat exchange portion is arranged on the upper side or the lower side of the second convection heat exchange portion. Under the premise of ensuring the heating or cooling capacity, the human body's sense of being blown by the wind can be reduced and the thermal comfort of the human body can be increased. The radiation heat exchange portion and the first convection heat exchange portion mainly bear the sensible heat compound; the second convection heat exchange portion mainly bears the latent heat load.
Description
Technical Field
The invention relates to the field of refrigeration and heating, in particular to a radiation convection type heat exchanger and an air conditioner with the same.
Background
The prior air conditioner heat exchanger mainly heats or cools air in a forced convection heat exchange mode, and then transfers heat or cold to a room or a human body, but the heat transfer in the convection heat exchange mode can reduce the thermal comfort of the human body, and particularly when higher heating or refrigerating capacity is needed, high wind blown out from the inside of the air conditioner heat exchanger is extremely easy to cause the thermal discomfort of the human body.
Disclosure of Invention
The object of the first aspect of the present invention is to overcome at least one of the drawbacks of the prior heat exchangers and to provide a radiation convection heat exchanger which can significantly reduce the thermal discomfort of a human body when exchanging heat with the human body or a room.
An object of a second aspect of the present invention is to provide an air conditioner having the above-mentioned radiation convection type heat exchanger.
According to a first aspect of the present invention, the present invention proposes a radiant convection heat exchanger comprising:
A radiation heat exchange part which is in a cylindrical shape with two ends open, is configured to absorb heat or cold from the inner wall surface thereof, and radiate heat or cold outwards from the outer wall surface thereof;
A first convection heat exchange portion disposed inside the radiation heat exchange portion and configured to generate heat or cold and transfer the heat or cold to air flowing through the inside of the radiation heat exchange portion and transfer the heat or cold to an inner wall surface of the radiation heat exchange portion, and
A second convection heat exchange part configured to generate heat or cold and exchange heat with air flowing therethrough;
The radiation heat exchange part is arranged on the upper side or the lower side of the second convection heat exchange part.
Optionally, the first convection heat exchange part is internally provided with at least one first refrigerant flow path, the second convection heat exchange part is provided with at least one second refrigerant flow path, and at least one first refrigerant flow path and at least one second cooling capacity flow path are connected in series, in parallel or in series-parallel.
Optionally, the first convection heat exchange part is connected in series with the second convection heat exchange part, and the first convection heat exchange part is arranged at the upstream of the second convection heat exchange part.
Optionally, the radiation convection heat exchanger further comprises a first fan and a second fan;
the first fan is arranged outside one end of the radiation heat exchange part, so that air enters the radiation heat exchange part from the one end of the radiation heat exchange part, exchanges heat with the first convection heat exchange part and flows out from the other end of the radiation heat exchange part;
The second fan is arranged on one side of the second convection heat exchange part.
Optionally, the radiation convection heat exchanger further comprises a third fan, wherein the third fan is arranged outside one end of the radiation heat exchange part and is configured to enable part of air to enter the radiation heat exchange part from the one end of the radiation heat exchange part, flow out of the other end of the radiation heat exchange part after exchanging heat with the first convection heat exchange part, and enable part of air to flow through the second convection heat exchange part.
Optionally, the total volume of the refrigerant flowing through space in the first convection heat exchange portion is larger than the total volume of the refrigerant flowing through space in the second convection heat exchange portion, so that the refrigerant flow rate in the first convection heat exchange portion is larger than the refrigerant flow rate in the second convection heat exchange portion.
Optionally, the first convection heat exchange portion and the second convection heat exchange portion each adopt a fin tube structure.
Optionally, the first convection heat exchange part comprises a plurality of heat exchange plates with first refrigerant channels, each heat exchange plate is provided with a first edge and a second edge which extend along the axial direction of the radiation heat exchange part, the first edge is arranged in the middle of the space inside the radiation heat exchange part, the second edge is connected with the inner wall surface of the radiation heat exchange part, or,
The first convection heat exchange part comprises a plurality of heat exchange cylinders which are coaxially arranged, each heat exchange cylinder and the radiation heat exchange part are coaxially arranged, and a plurality of second refrigerant channels are arranged on the cylinder wall of each heat exchange cylinder.
According to a second aspect of the present invention there is provided an air conditioner comprising an evaporator and a condenser, the evaporator and/or the condenser employing any of the radiant convection heat exchangers described above.
Optionally, the air conditioner further comprises a compressor and a throttling device, the evaporator adopts any radiation convection type heat exchanger, the first convection type heat exchange part is connected with the second convection type heat exchange part in series, the first convection type heat exchange part is arranged at the upstream of the second convection type heat exchange part, the inlet of the first convection type heat exchange part is communicated with the outlet of the throttling device, and the outlet of the second convection type heat exchange part is communicated with the inlet of the compressor.
The radiation convection heat exchanger and the air conditioner have the advantages that the radiation heat exchange part, the first convection heat exchange part and the second convection heat exchange part are arranged, the cylindrical radiation plate bears a part of heating or refrigerating load, the blowing sense of a human body can be reduced on the premise of ensuring the heating or refrigerating capacity, the thermal comfort of the human body is improved, and particularly, the radiation heat exchange can obviously improve the thermal comfort of the human body during heating in winter.
Further, in the radiation convection heat exchanger, the radiation heat exchange part and the first convection heat exchange part mainly bear sensible heat combination, and the second convection heat exchange part mainly bears latent heat load.
Further, the addition of the cylindrical radiating plate can reduce the number of refrigerant pipelines (such as fin tubes).
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
FIG. 1 is a schematic block diagram of a radiant convection heat exchanger in accordance with an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of a radiant heat exchange section and a first convection heat exchange section of the radiant convection heat exchanger of FIG. 1;
FIG. 3 is a schematic cross-sectional illustration of a radiant heat exchange section and a first convection heat exchange section of the radiant convection heat exchanger of FIG. 1;
FIG. 4 is a schematic cross-sectional view of a radiation convection heat exchanger partial structure according to an embodiment of the invention;
FIG. 5 is a schematic cross-sectional view of a radiation convection heat exchanger partial structure according to an embodiment of the invention;
FIG. 6 is a schematic cross-sectional illustration of a radiant heat exchange section and a first convection heat exchange section of the radiant convection heat exchanger of FIG. 1;
FIG. 7 is a schematic cross-sectional illustration of a radiant heat exchange section and a first convection heat exchange section of the radiant convection heat exchanger of FIG. 1;
FIG. 8 is a schematic cross-sectional illustration of a radiant heat exchange section and a first convection heat exchange section of the radiant convection heat exchanger of FIG. 1;
Fig. 9 is a schematic system diagram of an air conditioner according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic block diagram of a radiant convection heat exchanger in accordance with an embodiment of the invention. As shown in fig. 1 and referring to fig. 2 to 8, an embodiment of the present invention provides a radiation convection heat exchanger, which may include a radiation heat exchange portion 20, a first convection heat exchange portion 30, and a second convection heat exchange portion 40. The radiant heat exchange section 20 and the first convection heat exchange section 30 may constitute a radiant convection heat exchange section.
The radiation heat exchange portion 20 has a tubular shape with both ends open, and is configured to absorb heat or cold from its inner wall surface and radiate heat or cold from its outer wall surface. For example, the outer contour of the cross section of the radiation heat exchanging part 20 is circular, semicircular, square or fan-shaped. The first convection heat exchange portion 30 is disposed inside the radiation heat exchange portion 20, and is configured to generate heat or cold, and to transfer the heat or cold to air flowing through the inside of the radiation heat exchange portion 20, and to transfer the heat or cold to an inner wall surface of the radiation heat exchange portion 20. The radiation heat exchange part 20 is positioned on the outer shell surface of the radiation convection heat exchange part and can be directly used as the outer shell of the radiation convection heat exchange part. The second convection heat exchange portion 40 is configured to generate heat or cold and exchange heat with air flowing therethrough. The radiation heat exchanging part is disposed at an upper side or a lower side of the second convection heat exchanging part 40. Preferably, the radiation heat exchanging part 20 is disposed at an upper side of the second convection heat exchanging part 40.
When the radiation convection heat exchanger in the embodiment of the invention works, the first convection heat exchange part 30 generates heat or cold, exchanges heat with air inside the radiation heat exchange part 20 and exchanges heat with the inner wall surface of the radiation heat exchange part 20, the air after heat exchange can flow out of the radiation heat exchange part 20 for indoor or human body warm keeping or cooling, and the outer wall surface of the radiation heat exchange part 20 can radiate heat or cold outwards for indoor or human body warm keeping or cooling. The cylindrical radiation plate bears a part of heating or refrigerating load, can reduce the blowing sense of a human body and increase the thermal comfort of the human body on the premise of ensuring the heating or refrigerating capacity, and particularly can obviously increase the thermal comfort of the human body by radiation heat exchange during heating in winter. And the radiant heat exchange part 20 and the first convection heat exchange part 30 mainly take charge of sensible heat recombination, and the second convection heat exchange part 40 mainly takes charge of latent heat load.
In some embodiments of the present invention, the first convection heat exchange portion 30 includes a refrigerant pipe and a heat dissipating fin 33 provided in the refrigerant pipe. For example, the refrigerant line includes a plurality of circular straight pipe sections and a plurality of connecting pipe sections respectively connecting the two circular straight pipe sections, and a plurality of heat dissipation fins 33 are installed on the plurality of straight pipe sections. I.e. the first convection heat exchange section 30 may be a conventional fin tube heat exchanger. The second convection heat exchange portion 40 may be a conventional fin tube heat exchanger.
In some preferred embodiments of the present invention, as shown in fig. 2 and 3, the refrigerant line includes a plurality of heat exchange plates 31, and a plurality of first refrigerant passages 32 extending in a length direction or a width direction of the heat exchange plates 31 are provided in each heat exchange plate 31. A plurality of heat radiating fins 33 are provided and attached to the plurality of heat exchange plates 31.
Further, each heat exchange plate 31 has a first edge and a second edge extending in the axial direction of the radiation heat exchange portion 20. The first edge is disposed in the middle of the inner space of the radiation heat exchanging part 20, and the second edge is connected to the inner wall surface of the radiation heat exchanging part 20. The plurality of heat exchange plates 31 are uniformly distributed along the circumferential direction of the radiation heat exchange portion 20. For example, in some embodiments, each heat exchange plate 31 extends in an axial direction of the radiant heat exchange section 20 and extends in a radial direction of the radiant heat exchange section 20, as shown in fig. 2. In other embodiments, each heat exchanger plate 31 is arranged crosswise to the radial direction of the radiant heat exchange section 20 towards the second edge of the heat exchanger plate 31, as shown in fig. 3.
In some embodiments of the present invention, a plurality of heat dissipation fins 33 are disposed between every two adjacent heat exchange plates 31, and each heat dissipation fin 33 is provided with one or more heat dissipation holes, so as to form a hollowed-out structure. Each of the first refrigerant passages 32 extends in the axial direction of the radiation heat exchange portion 20. The plurality of first refrigerant channels 32 in each heat exchange plate 31 are arranged in sequence from the first edge to the second edge.
The size of the interval between two adjacent heat radiating fins 33 among the plurality of heat radiating fins 33 between every two adjacent heat exchanging plates 31 has a plurality of distance values in the radial direction of the radiation heat exchanging portion 20 so that the arrangement density of the plurality of heat radiating fins 33 is not uniform. For example, in the radial direction of the radiation heat exchanging portion 20, the plurality of distance values become smaller in order, that is, the heat radiating fins 33 are arranged to be sparse and dense.
Specifically, the plurality of heat radiating fins 33 between each two adjacent heat exchanging plates 31 are arranged in plural groups, each group of heat radiating fins 33 has at least two heat radiating fins 33, and the distance between each two adjacent heat radiating fins 33 in each group of heat radiating fins 33 is equal to one of the above distance values, so that the size of the interval between the heat radiating fins 33 between each two adjacent heat exchanging plates 31 has plural distance values, and the adjacent groups can share one heat radiating fin 33, i.e., be grouped by one shared heat radiating fin 33.
In each heat exchange plate 31, the first edges point to the direction of the second edges, the plurality of first refrigerant channels 32 are sequentially arranged, and the interval between two adjacent first refrigerant channels 32 has one or more interval values. The plurality of pitch values become successively smaller. The plurality of first refrigerant channels 32 on each heat exchange plate 31 are arranged into a plurality of groups, each group of first refrigerant channels 32 has at least two first refrigerant channels 32, and the distance between every two adjacent first refrigerant channels 32 in each group of first refrigerant channels 32 is equal to the distance value, so that the distance between the first refrigerant channels 32 on each heat exchange plate 31 has a plurality of distance values, and two adjacent groups can share one first refrigerant channel 32, namely, can be grouped by utilizing one shared first refrigerant channel 32.
The ratio between the number of the first refrigerant passages 32 and the number of the heat radiating fins 33 is 4/5 to 10/1, preferably 1/1 to 10/1, from the first edge toward the second edge. Each of the heat radiating fins 33 has an arc shape arched toward the outside of the radiation heat exchanging portion 20. The cross-sectional profile of each first refrigerant passage 32 is rectangular or circular or other regular or irregular shape. The hydraulic radius of each first refrigerant channel 32 is 0.1-10 mm, and the number of the first refrigerant channels 32 on each heat exchange plate 31 is 10-50. The number of heat exchange plates 31 is 4 to 50. In some embodiments of the present invention, the first edge points in the direction of the second edge, and the space between two adjacent first refrigerant channels 32 has one, i.e., a plurality of first refrigerant channels 32 are equally spaced. The distance between two adjacent heat radiating fins 33 among the plurality of heat radiating fins 33 between each two adjacent heat exchanging plates 31 is one, that is, the plurality of heat radiating fins 33 between each two adjacent heat exchanging plates 31 are arranged at equal intervals.
In some alternative embodiments of the present invention, each fin 33 may be a flat plate fin 34, as shown in fig. 4. The above-mentioned flat plate-like heat radiation fins 34 are provided on both sides of each heat exchange plate 31 in order from the corresponding first edge to the second edge. Each heat radiating fin 33 is perpendicular to the corresponding heat exchange plate 31. In alternative embodiments of the present invention, as shown in fig. 5, each heat radiating fin 33 may be a pin-shaped heat radiating fin 35, and both sides of each heat exchanging plate 31 are provided with a plurality of pin-shaped heat radiating fins 35 perpendicular to the heat exchanging plate 31. In alternative embodiments of the present invention, other types of heat dissipation fins, such as tree-shaped heat dissipation fins, irregular-shaped heat dissipation fins, etc., may be disposed on both sides of each heat exchange plate 31, as shown in fig. 6. Further, the heat exchange plate 31 is preferably integrally formed with the heat radiating fins 33.
In other preferred embodiments of the present invention, as shown in fig. 7 and 8, the refrigerant line includes a plurality of heat exchange tubes 36 coaxially disposed, and each heat exchange tube 36 is coaxially disposed with the radiation heat exchange portion 20. A plurality of second refrigerant channels 37 are arranged in the wall of each heat exchange cylinder 36. The heat dissipation fins 33 are plural. At least the outer side of the innermost heat exchange tube 36 has a plurality of heat radiating fins 33. For example, the innermost heat exchange tube 36 has a plurality of heat radiating fins 33 on the outer and inner sides thereof. The heat exchange tube 36 has a plurality of heat radiating fins 33 on its inner side, and the outer side of the heat exchange tube 36 is thermally connected to the inner wall surface of the radiation heat exchange portion 20 via the plurality of heat radiating fins 33, or the outer wall surface of the heat exchange tube 36 is integrally formed with or in contact with the inner wall surface of the radiation heat exchange portion 20.
Further, each of the heat exchange cylinders 36 in the middle has a plurality of heat radiating fins 33 on the inner side and the outer side. If there is no other structure between two adjacent heat exchange tubes 36, the heat dissipation fins outside the inner heat exchange tube 36 and the heat dissipation fins inside the outer heat exchange tube 36 are the same heat exchange fins, and may be one fin layer. If other structures are arranged between two adjacent heat exchange cylinders 36, such as a support cylinder coaxially arranged with the heat exchange cylinders 36, the heat dissipation fins outside the inner heat exchange cylinder 36 and the heat dissipation fins inside the outer heat exchange cylinder 36 can form two fin layers, which are positioned at two sides of the support cylinder.
Each of the second refrigerant passages 37 extends in the axial direction of the radiation heat exchange portion 20. The plurality of second refrigerant passages 37 in the wall of each heat exchange tube 36 are disposed in sequence along the circumferential direction of the heat exchange tube 36. The cross section of the plurality of second refrigerant channels 37 in the wall of each heat exchange tube 36 may include a circular shape and a polygonal shape, the polygonal shape may be an approximately rectangular structure, and the polygonal second refrigerant channels and the circular second refrigerant channels are alternately arranged in sequence along the circumferential direction of the heat exchange tube 36. Each of the heat radiation fins 33 extends in the axial direction of the radiation heat exchange portion 20 to form an air flow passage extending in the axial direction of the radiation heat exchange portion 20. One or more heat dissipation holes are provided on each heat dissipation fin 33.
In some embodiments of the present invention, the first convection heat exchange portion 30 further includes at least one of the above-mentioned support cylinders, each of which is disposed between two adjacent heat exchange cylinders 36 or is disposed inside the innermost heat exchange cylinder 36, and each of which has a heat dissipation fin 33 with the heat exchange cylinder 36 inside or outside thereof. Further, the heat dissipation fins 33 may be integrally formed with the corresponding heat exchange tube or support tube on the inner side thereof, and the outer side may contact and abut with the corresponding heat exchange tube or support tube on the outer side thereof.
In some embodiments of the present invention, the cross-sectional area of each second refrigerant channel 37 on the outer heat exchange tube 36 is larger than the cross-sectional area of each second refrigerant channel 37 on the inner heat exchange tube 36 in every two adjacent heat exchange tubes 36. The heat dissipating fins 33 on each side of each heat exchange tube 36 may constitute a fin layer. In each two adjacent fin layers, the length of the outer heat radiation fin 33 extending in the radial direction of the radiation heat exchanging portion 20 is longer than the length of the inner heat radiation fin 33 extending in the radial direction of the radiation heat exchanging portion 20. The wall thickness of each radiating fin 33 is 0.2-1 mm, and the distance between every two adjacent radiating fins 33 in each fin layer is 0.5-10 mm. The hydraulic radius of each second refrigerant channel 37 is 0.6-10 mm.
In some embodiments of the present invention, the first convection heat transfer section 30 defines a central passage 38 extending in the axial direction of the radiant heat transfer section 20, centrally located in the space inside the radiant heat transfer section 20. The central passage 38 may be configured to circulate air or a refrigerant. In other embodiments, the central passage 38 may be provided with a closed structure at each end, and the central passage 38 may be configured to accommodate fittings such as shunt tubes. Each of the first/second refrigerant channels 32/37 is preferably a microchannel tube. The heat exchange plate 31, the heat exchange tube 36 and the radiation heat exchange portion 20 may be made of copper or aluminum.
In some embodiments of the present invention, the first convection heat transfer section 30 is formed using an extrusion process for ease of manufacturing. Or, the whole formed by the first convection heat exchange part 30 and the radiation heat exchange part 20 is formed by adopting an extrusion process. As shown in fig. 2 to 8.
In some embodiments of the present invention, the refrigerant lines further have a main inlet pipe and a main outlet pipe, and one end of each of the first refrigerant channels 32/second refrigerant channels 37 is communicated with the main inlet pipe, and the other end is communicated with the main outlet pipe, so that the plurality of first refrigerant channels 32/second refrigerant channels 37 are connected in parallel.
In other embodiments of the present invention, the radiant convection heat exchange section may have at least one parallel unit, each parallel unit having a plurality of channel groups. Each channel group is provided with at least one first refrigerant channel 32/second refrigerant channel 37, and the head and the tail of the channel groups of each parallel unit are sequentially connected in series. When the parallel units are in a plurality, the parallel units are connected in parallel. Each channel group may have one heat exchanger plate 31 as described above. For example, the number of heat exchanger plates 31 is 16, wherein every 4 heat exchanger plates 31 constitute 4 channel groups, which are arranged end to end in series, i.e. every 4 heat exchanger plates 31 constitute one parallel unit, i.e. a total of 4 parallel units, which are connected in parallel to each other. Further, both ends of each heat exchange plate 31 are also provided with a collecting inlet pipe and a collecting outlet pipe, so that the pipelines are reasonably arranged. At least one parallel unit has an inlet connected to the main inlet pipe and an outlet connectable to the main outlet pipe.
In some embodiments of the invention, the first convection section 30 is in series with the second convection section 40, and the first convection section 30 is disposed upstream of the second convection section 40. In some alternative embodiments of the present invention, the first convection heat exchange portion 30 has at least one first refrigerant flow path therein, the second convection heat exchange portion 40 has at least one second refrigerant flow path therein, and the at least one first refrigerant flow path and the at least one second refrigerant flow path are connected in series, parallel or a series-parallel connection.
In some embodiments of the present invention, the radiation convection heat exchanger further includes a first fan and a second fan, the first fan is disposed outside one end of the radiation heat exchange portion, so that air enters the radiation heat exchange portion from one end of the radiation heat exchange portion, exchanges heat with the first convection heat exchange portion, and then flows out from the other end of the radiation heat exchange portion, and the second fan is disposed at one side of the second convection heat exchange portion 40. The first fan and the second fan are independently controllable.
In some preferred embodiments of the present invention, as shown in fig. 1, the radiant heat exchanger further includes a third fan 50 disposed outside one end of the radiant heat exchange part, configured to cause part of the air to enter the radiant heat exchange part from one end of the radiant heat exchange part, to flow out from the other end of the radiant heat exchange part after exchanging heat with the first convection heat exchange part, and to cause part of the air to flow through the second convection heat exchange part 40.
Further, the total volume of the refrigerant flowing through space in the first convection heat exchange portion is larger than the total volume of the refrigerant flowing through space in the second convection heat exchange portion 40, so that the refrigerant flowing through the first convection heat exchange portion is larger than the refrigerant flowing through the second convection heat exchange portion 40.
The embodiment of the present invention also provides an air conditioner, as shown in fig. 9, which may include a compressor 60, a condenser 70, a throttle device 80, and an evaporator. The evaporator and/or condenser 70 employs a radiant convection heat exchanger as in any of the embodiments described above. Preferably, only the evaporator employs the radiant convection heat exchanger of any of the embodiments described above. Further, the first convection heat exchange part 30 is connected in series with the second convection heat exchange part 40, and the first convection heat exchange part 30 is arranged at the upstream of the second convection heat exchange part 40, the inlet of the first convection heat exchange part 30 is communicated with the outlet of the throttling device, and the outlet of the second convection heat exchange part 40 is communicated with the inlet of the compressor. The restriction 80 may be located on the indoor side or the outdoor side.
When the air conditioner works, such as refrigeration, the refrigerant firstly passes through the first convection heat exchange part 30 and then passes through the second convection heat exchange part 40, the temperature of the second convection heat exchange part 40 is lower, the air conditioner can be used for dehumidification, and the temperature of the first convection heat exchange part 30 is slightly higher, so that the air conditioner is mainly used for refrigeration. During heating, the first convection heat exchange portion 30 transfers heat to the room in the form of heat radiation and convection heat exchange, and the second convection heat exchange portion 40 can be used for spray humidification.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (7)
1.A radiant convection heat exchanger, comprising:
A radiation heat exchange part which is in a cylindrical shape with two ends open, is configured to absorb heat or cold from the inner wall surface thereof, and radiate heat or cold outwards from the outer wall surface thereof;
A first convection heat exchange portion disposed inside the radiation heat exchange portion and configured to generate heat or cold and transfer the heat or cold to air flowing through the inside of the radiation heat exchange portion and transfer the heat or cold to an inner wall surface of the radiation heat exchange portion, and
A second convection heat exchange part configured to generate heat or cold and exchange heat with air flowing therethrough;
the radiation heat exchange part is arranged on the upper side or the lower side of the second convection heat exchange part;
the total volume of the refrigerant flowing through space in the first convection heat exchange part is larger than that of the refrigerant flowing through space in the second convection heat exchange part, so that the refrigerant flow rate in the first convection heat exchange part is larger than that in the second convection heat exchange part;
The first convection heat exchange part is connected in series with the second convection heat exchange part, and the first convection heat exchange part is arranged at the upstream of the second convection heat exchange part;
The first convection heat exchange part comprises a plurality of heat exchange plates with first refrigerant channels, each heat exchange plate is provided with a first edge and a second edge which extend along the axial direction of the radiation heat exchange part, the first edge is arranged in the middle of the inner space of the radiation heat exchange part, the second edge is connected with the inner wall surface of the radiation heat exchange part, the first edge points to the direction of the second edge in each heat exchange plate, the plurality of first refrigerant channels are sequentially arranged, the interval between two adjacent first refrigerant channels is provided with a plurality of interval values, and the interval values are sequentially reduced.
2. The radiant convection heat exchanger as set forth in claim 1 wherein,
The first convection heat exchange part is internally provided with at least one first refrigerant flow path;
At least one first refrigerant flow path and at least one second refrigerant flow path are connected in series, parallel or series-parallel.
3. The radiant convection heat exchanger of claim 1, further comprising a first fan and a second fan;
the first fan is arranged outside one end of the radiation heat exchange part, so that air enters the radiation heat exchange part from the one end of the radiation heat exchange part, exchanges heat with the first convection heat exchange part and flows out from the other end of the radiation heat exchange part;
The second fan is arranged on one side of the second convection heat exchange part.
4. The radiant convection heat exchanger of claim 1, further comprising:
The third fan is arranged outside one end of the radiation heat exchange part and is configured to enable part of air to enter the radiation heat exchange part from the one end of the radiation heat exchange part, flow out of the other end of the radiation heat exchange part after exchanging heat with the first convection heat exchange part, and enable part of air to flow through the second convection heat exchange part.
5. The radiant convection heat exchanger as set forth in claim 1 wherein,
The first convection heat exchange part and the second convection heat exchange part both adopt fin tube structures.
6. An air conditioner comprising an evaporator and a condenser, wherein the evaporator and/or the condenser employs the radiant convection heat exchanger of any one of claims 1 to 5.
7. The air conditioner of claim 6, further comprising a compressor and a throttle device;
The evaporator adopts the radiation convection heat exchanger in claims 1 to 5, the first convection heat exchange part is connected with the second convection heat exchange part in series, the first convection heat exchange part is arranged at the upstream of the second convection heat exchange part, the inlet of the first convection heat exchange part is communicated with the outlet of the throttling device, and the outlet of the second convection heat exchange part is communicated with the inlet of the compressor.
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| CN201910028727.3A CN111435026B (en) | 2019-01-11 | 2019-01-11 | Radiant convection heat exchanger and air conditioner having the same |
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| CN201910028727.3A CN111435026B (en) | 2019-01-11 | 2019-01-11 | Radiant convection heat exchanger and air conditioner having the same |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2295182Y (en) * | 1996-12-21 | 1998-10-21 | 董鸿聚 | Scroll flow-division tube heat exchanger |
| CN101160501A (en) * | 2005-04-15 | 2008-04-09 | 杰齐·哈拉内克 | axial heat exchanger |
| CN204880378U (en) * | 2015-08-07 | 2015-12-16 | 重庆大学 | Cartridge radiation heat convection ware |
| CN204880869U (en) * | 2015-08-11 | 2015-12-16 | Tcl空调器(中山)有限公司 | Shell and Tube Heat Exchangers and Air Conditioners |
| CN105588359A (en) * | 2015-01-30 | 2016-05-18 | 海信（山东）空调有限公司 | Air conditioning system |
| CN209877163U (en) * | 2019-01-11 | 2019-12-31 | 青岛海尔空调器有限总公司 | Radiant convection heat exchanger and air conditioner with same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10153350A (en) * | 1996-11-21 | 1998-06-09 | Nippon Soken Inc | Catalytic combustor |
| CN100430666C (en) * | 2006-10-26 | 2008-11-05 | 华东理工大学 | Multi-purpose DC tube panel heat carrier boiler |
| US20100116466A1 (en) * | 2008-11-07 | 2010-05-13 | Jerzy Hawranek | Axial Heat Exchanger for Regulating the Temperature and Air Comfort in an Indoor Space |
| CN205843415U (en) * | 2016-06-07 | 2016-12-28 | 杭州三花家电热管理系统有限公司 | Heat-exchanger rig and the refrigeration plant with it |
| CN207407711U (en) * | 2017-11-14 | 2018-05-25 | 北京迪威尔石油天然气技术开发有限公司 | A kind of helical flow path directly heats fiery cylinder |
-
2019
- 2019-01-11 CN CN201910028727.3A patent/CN111435026B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2295182Y (en) * | 1996-12-21 | 1998-10-21 | 董鸿聚 | Scroll flow-division tube heat exchanger |
| CN101160501A (en) * | 2005-04-15 | 2008-04-09 | 杰齐·哈拉内克 | axial heat exchanger |
| CN105588359A (en) * | 2015-01-30 | 2016-05-18 | 海信（山东）空调有限公司 | Air conditioning system |
| CN204880378U (en) * | 2015-08-07 | 2015-12-16 | 重庆大学 | Cartridge radiation heat convection ware |
| CN204880869U (en) * | 2015-08-11 | 2015-12-16 | Tcl空调器(中山)有限公司 | Shell and Tube Heat Exchangers and Air Conditioners |
| CN209877163U (en) * | 2019-01-11 | 2019-12-31 | 青岛海尔空调器有限总公司 | Radiant convection heat exchanger and air conditioner with same |
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| CN111435026A (en) | 2020-07-21 |
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Effective date of registration: 20250610 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Country or region after: China Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Country or region before: China |
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