CN111435020A - Radiation convection type heat exchanger and air conditioner with same - Google Patents
Radiation convection type heat exchanger and air conditioner with same Download PDFInfo
- Publication number
- CN111435020A CN111435020A CN201910028210.4A CN201910028210A CN111435020A CN 111435020 A CN111435020 A CN 111435020A CN 201910028210 A CN201910028210 A CN 201910028210A CN 111435020 A CN111435020 A CN 111435020A
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- Prior art keywords
- heat
- heat exchange
- radiation
- refrigerant
- convection
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Classifications
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
Abstract
The invention relates to a radiation convection type heat exchanger and an air conditioner with the same. Specifically, the radiation convection type heat exchanger includes: a radiant heat exchanging part having a cylindrical shape with both ends open, configured to absorb heat or cold from an inner wall surface thereof, and radiate the heat or cold outward from an outer wall surface thereof; and a convection heat exchanging part disposed at an inner side of the radiation heat exchanging part, configured to generate heat or cold, and to transfer the heat or cold to air flowing through the inner side of the radiation heat exchanging part, and to transfer the heat or cold to an inner wall surface of the radiation heat exchanging part. The cylindrical radiation plate bears a part of heating or refrigerating load, so that the blowing feeling of a human body can be reduced and the thermal comfort of the human body can be improved on the premise of ensuring the heating or refrigerating capacity; especially, when heating in winter, the heat radiation and heat exchange can obviously increase the thermal comfort of the human body. Furthermore, the number of refrigerant pipelines (such as finned tubes) can be reduced by adding the cylindrical radiation plate.
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 heat exchanger for the existing air conditioner, especially the indoor side heat exchanger, mainly heats or cools the air in a forced convection heat exchange mode, and then transfers the heat or the cold to the room or the human body, but the heat transfer in the convection heat exchange mode can reduce the heat comfort of the human body, and especially when higher heating or refrigerating capacity is needed, the high wind blown out from the inside of the heat exchanger of the air conditioner is easy to cause heat 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 art heat exchangers and to provide a radiation convection heat exchanger which significantly reduces the thermal discomfort of the human body when exchanging heat with the human body or a room.
The second aspect of the invention aims to provide an air conditioner with the radiation convection type heat exchanger.
According to a first aspect of the invention, there is provided a radiant convective heat exchanger comprising:
a radiant heat exchanging part having a cylindrical shape with both ends open, configured to absorb heat or cold from an inner wall surface thereof, and radiate the heat or cold outward from an outer wall surface thereof; and
and a convection heat exchanging part disposed at an inner side of the radiation heat exchanging part, configured to generate heat or cold, and to transfer the heat or cold to air flowing through the inner side of the radiation heat exchanging part, and to transfer the heat or cold to an inner wall surface of the radiation heat exchanging part.
Optionally, the heat convection part includes a refrigerant pipeline and a heat dissipation fin disposed on the refrigerant pipeline.
Optionally, the refrigerant pipeline includes a plurality of heat exchange plates, and each heat exchange plate is provided with a plurality of first refrigerant channels extending along the length direction or the width direction of the heat exchange plate; the heat radiating fins are multiple and are arranged on the heat exchange plates.
Optionally, each of the heat exchange plates has a first edge and a second edge extending in an axial direction of the radiant heat exchange portion; the first edge is arranged in the middle of the space inside the radiation heat exchange part, and the second edge is connected to the inner wall surface of the radiation heat exchange part;
the heat exchange plates are uniformly distributed along the circumferential direction of the radiation heat exchange part;
a plurality of radiating fins which are sequentially arranged along the radial direction of the radiation heat exchanging part are arranged between every two adjacent heat exchanging plates;
each first refrigerant channel extends along the axial direction of the radiation heat exchange part;
the first refrigerant channels in each heat exchange plate are sequentially arranged in a direction from the first edge to the second edge.
Optionally, the refrigerant pipeline includes a plurality of coaxially arranged heat exchange cylinders, and each heat exchange cylinder is coaxially arranged with the radiation heat exchange portion;
a plurality of second refrigerant channels are arranged in the wall of each heat exchange cylinder;
the number of the radiating fins is multiple; and is
At least the outer side of the innermost heat exchange cylinder is provided with a plurality of heat dissipation fins;
the inner side of the heat exchange cylinder at the outermost side is provided with a plurality of radiating fins; and the outer side of the heat exchange cylinder at the outermost side is thermally connected with the inner wall surface of the radiation heat exchange part through a plurality of radiating fins, or the outer wall surface of the heat exchange cylinder at the outermost side is integrally formed with or contacts and abuts against the inner wall surface of the radiation heat exchange part.
Optionally, each second refrigerant channel extends along the axial direction of the radiation heat exchange portion;
the second refrigerant channels in the wall of each heat exchange cylinder are sequentially arranged along the circumferential direction of the heat exchange cylinder;
each radiating fin extends along the axial direction of the radiation heat exchange part to form an airflow channel extending along the axial direction of the radiation heat exchange part.
Optionally, the refrigerant pipeline includes a plurality of circular straight pipe sections and a plurality of connecting pipe sections respectively connecting two circular straight pipe sections; the heat dissipation fins are multiple and are arranged on the straight tube sections.
Optionally, the convective heat exchange part defines a central channel extending along the axial direction of the radiant heat exchange part, and is located in the center of the space inside the radiant heat exchange part; the central passage is configured to flow air or a refrigerant.
Optionally, the outer contour of the cross section of the radiant heat exchanging part is circular, semicircular, square or fan-shaped.
According to a second aspect of the present invention, the present invention further provides an air conditioner, comprising an evaporator and a condenser, wherein the evaporator and/or the condenser adopts any one of the radiation convection type heat exchangers.
In the radiation convection type heat exchanger and the air conditioner, because the radiation heat exchange part and the convection heat exchange part are arranged, the cylindrical radiation plate bears part of heating or refrigerating load, on the premise of ensuring the heating or refrigerating capacity, the blowing feeling of a human body can be reduced, and the thermal comfort of the human body can be improved; especially, when heating in winter, the heat radiation and heat exchange can obviously increase the thermal comfort of the human body. Furthermore, the number of refrigerant pipelines (such as finned tubes) can be reduced by adding the cylindrical radiation plate.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic cross-sectional view of a radiant convective heat exchanger according to one embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a radiant convective heat exchanger according to one embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a partial structure of a radiant convective heat exchanger according to one embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a partial structure of a radiant convective heat exchanger according to one embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a radiant convective heat exchanger according to one embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a radiant convective heat exchanger according to one embodiment of the present invention;
fig. 7 is a schematic cross-sectional view of a radiant convective heat exchanger according to one embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic cross-sectional view of a radiant convective heat exchanger according to one embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides a radiation convection type heat exchanger, which includes a radiation heat exchanging part 20 and a convection heat exchanging part 30. The radiant heat exchanging portion 20 has a cylindrical shape with both ends open, and is configured to absorb heat or cold from its inner wall surface and radiate the heat or cold from its outer wall surface outward. For example, the outer contour of the cross section of the radiant heat exchanging part 20 is circular, semicircular, square or fan-shaped. The convection heat exchanging part 30 is disposed inside the radiant heat exchanging part 20, and is configured to generate heat or cold, and to transfer the heat or cold to air flowing through the inside of the radiant heat exchanging part 20 and to transfer the heat or cold to an inner wall surface of the radiant heat exchanging part 20. The radiation heat exchanging part 20 is located on the outer shell surface of the radiation convection type heat exchanger and can be directly used as an outer shell.
When the radiation convection type heat exchanger in the embodiment of the present invention works, the convection heat exchanging part 30 generates heat or cold to exchange heat with the air inside the radiation heat exchanging part 20 and exchange heat with the inner wall surface of the radiation heat exchanging part 20, the air after heat exchange can flow out of the radiation heat exchanging part 20 for indoor or human body warm keeping or cooling, and the outer wall surface of the radiation heat exchanging 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, so that the blowing feeling of a human body can be reduced and the thermal comfort of the human body can be improved on the premise of ensuring the heating or refrigerating capacity; especially, when heating in winter, the heat radiation and heat exchange can obviously increase the thermal comfort of the human body.
In some embodiments of the present invention, the convective heat transfer part 30 includes a refrigerant pipeline and a heat dissipation fin 33 disposed on the refrigerant pipeline. For example, the refrigerant pipeline comprises a plurality of circular straight pipe sections and a plurality of connecting pipe sections which are respectively connected with the two circular straight pipe sections; the plurality of fins 33 are attached to the plurality of straight tube sections. That is, the convection heat exchanging part 30 may be a conventional fin-tube heat exchanger.
In some preferred embodiments of the present invention, as shown in fig. 1 and 2, the refrigerant pipeline includes a plurality of heat exchange plates 31, and a plurality of first refrigerant channels 32 extending along a length direction or a width direction of the heat exchange plates 31 are disposed in each of the heat exchange plates 31. A plurality of heat radiation fins 33 are 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 an axial direction of the radiant heat exchanging part 20. The first edge is disposed in the middle of the space inside the radiant heat exchanging part 20, and the second edge is connected to the inner wall surface of the radiant heat exchanging part 20. The plurality of heat exchange plates 31 are uniformly distributed in the circumferential direction of the radiant heat exchanging part 20. For example, in some embodiments, each heat exchange plate 31 extends in an axial direction of the radiant heat exchanging part 20 and in a radial direction of the radiant heat exchanging part 20, as shown in fig. 1. In other embodiments, each heat exchanger plate 31 is arranged crosswise to the radial direction of the radiant heat exchanger portion 20 towards the second edge of the heat exchanger plate 31, as shown in fig. 2.
In some embodiments of the present invention, a plurality of heat dissipation fins 33 are sequentially disposed between every two adjacent heat exchange plates 31 along a radial direction of the radiant heat exchange portion 20, and each heat dissipation fin 33 is provided with one or more heat dissipation holes to form a hollow structure. Each of the first refrigerant passages 32 extends in the axial direction of the radiant heat exchanging part 20. The plurality of first refrigerant channels 32 in each heat exchange plate 31 are sequentially arranged from the first edge to the second edge.
The interval between two adjacent heat dissipation fins 33 among the plurality of heat dissipation fins 33 between every two adjacent heat exchange plates 31 has a plurality of distance values in the radial direction of the radiant heat exchanging portion 20 so that the arrangement density of the plurality of heat dissipation fins 33 is not equal. The plurality of distance values become smaller in order, i.e., the heat radiating fins 33 are arranged first to be sparse and then to be dense, as in the radial direction of the radiant heat exchanging portion 20.
Specifically, the plurality of heat dissipating fins 33 between every two adjacent heat exchange plates 31 are arranged in multiple groups, each group of heat dissipating fins 33 has at least two heat dissipating fins 33, the distance between every two adjacent heat dissipating fins 33 in each group of heat dissipating fins 33 is equal to the above distance value, so that the size of the interval between the heat dissipating fins 33 between every two adjacent heat exchange plates 31 has multiple distance values, and two adjacent groups can share one heat dissipating fin 33, that is, one shared heat dissipating fin 33 is used for grouping.
In each heat exchange plate 31, the first edge points to the second edge, the plurality of first refrigerant channels 32 are sequentially arranged, and the interval between two adjacent first refrigerant channels 32 has one or more spacing values. The plurality of pitch values become smaller in turn. 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, the distance between every two adjacent first refrigerant channels 32 in each group of first refrigerant channels 32 is equal to one of the above-mentioned distance values, 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, that is, one shared first refrigerant channel 32 is used for grouping.
The ratio of the number of the first refrigerant channels 32 to the number of the heat dissipating fins 33 is 4/5 to 10/1, preferably 1/1 to 10/1, from the first edge to the second edge. Each of the heat radiating fins 33 has an arc shape that is arched toward the outside of the radiant heat exchanging portion 20. The cross-sectional profile of each first refrigerant channel 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; 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 distance between two adjacent first refrigerant channels 32 is one from the first edge to the second edge, that is, the plurality of first refrigerant channels 32 are arranged at equal intervals. The distance between two adjacent heat dissipation fins 33 of the plurality of heat dissipation fins 33 between each two adjacent heat exchange plates 31 is one, that is, the plurality of heat dissipation fins 33 between each two adjacent heat exchange plates 31 are arranged at equal intervals.
In some alternative embodiments of the present invention, as shown in fig. 3, each of the heat dissipating fins 33 may be a flat plate-like heat dissipating fin 34. The above-mentioned flat plate-like heat radiating fins 34 are provided on both sides of each heat exchange plate 31 in order from the corresponding first edge toward the second edge. Each of the heat dissipation fins 33 is perpendicular to the corresponding heat exchange plate 31. In other alternative embodiments of the present invention, as shown in fig. 4, each heat dissipating fin 33 may be a pin-shaped heat dissipating fin 35, and a plurality of pin-shaped heat dissipating fins 35 perpendicular to each heat exchanging plate 31 are disposed on both sides of each heat exchanging plate 31. In some alternative embodiments of the present invention, other types of heat dissipation fins, such as tree-shaped heat dissipation fins, irregular heat dissipation fins, etc., may be disposed on both sides of each heat exchange plate 31, as shown in fig. 5. 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. 6 and 7, the refrigerant pipeline includes a plurality of heat exchanging cylinders 36 coaxially arranged, and each heat exchanging cylinder 36 is coaxially arranged with the radiant heat exchanging part 20. A plurality of second refrigerant passages 37 are formed in the wall of each heat exchange tube 36. The heat radiation fins 33 are plural. At least the outer side of the innermost heat exchange cylinder 36 has a plurality of heat radiating fins 33. For example, the innermost heat exchange cylinder 36 has a plurality of heat radiating fins 33 on the outer side and the inner side. The inner side of the outermost heat exchange cylinder 36 is provided with a plurality of radiating fins 33; and the outer side of the outermost heat exchange cylinder 36 is thermally connected to the inner wall surface of the radiant heat exchanging part 20 through a plurality of heat radiating fins 33, or the outer wall surface of the outermost heat exchange cylinder 36 is integrally formed with or contacts and abuts against the inner wall surface of the radiant heat exchanging part 20.
Further, each of the heat exchange cartridges 36 in the middle has a plurality of heat radiating fins 33 on both the inner side and the outer side. If there is no other structure between two adjacent 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 are the same heat exchange fins, and may be a fin layer. If there are other structures between two adjacent heat exchange cylinders 36, such as a support cylinder coaxially disposed with the heat exchange cylinder 36, the heat dissipation fins outside the inner heat exchange cylinder 36 and the heat dissipation fins inside the outer heat exchange cylinder 36 may form two fin layers at two sides of the support cylinder.
Each second refrigerant passage 37 extends in the axial direction of the radiant heat exchanging part 20. The plurality of second refrigerant channels 37 in the wall of each heat exchange tube 36 are sequentially arranged along the circumferential direction of the heat exchange tube 36. The cross section of the second refrigerant channels 37 in the wall of each heat exchange tube 36 may include a circle and a polygon, the polygon may be an approximately rectangular structure, and the polygonal second refrigerant channels and the circular second refrigerant channels are sequentially and alternately arranged along the circumferential direction of the heat exchange tube 36. Each of the radiating fins 33 extends in the axial direction of the radiant heat exchanging part 20 to form an air flow passage extending in the axial direction of the radiant heat exchanging part 20. Each of the heat dissipating fins 33 is provided with one or more heat dissipating holes.
In some embodiments of the present invention, the convection heat exchanging part 30 further includes at least one supporting cylinder, each supporting cylinder is disposed between two adjacent heat exchanging cylinders 36, or disposed inside the innermost heat exchanging cylinder 36, and each supporting cylinder has a heat dissipating fin 33 between the supporting cylinder and the heat exchanging cylinder 36 inside or outside the supporting cylinder. Further, the heat dissipating fins 33 may be integrally formed with the corresponding heat exchanging cylinder or supporting cylinder on the inner side thereof, and the outer side may be in contact with and abutted against the corresponding heat exchanging cylinder or supporting cylinder on the outer side thereof.
In some embodiments of the present invention, in every two adjacent heat exchange cylinders 36, the area of the cross section of each second refrigerant channel 37 on the outer heat exchange cylinder 36 is larger than the area of the cross section of each second refrigerant channel 37 on the inner heat exchange cylinder 36. The heat dissipating fins 33 on each side of each heat exchanger cartridge 36 may constitute a fin layer. In each two adjacent fin layers, the length of the outer-side heat dissipation fin 33 extending in the radial direction of the radiation heat exchanging portion 20 is greater than the length of the inner-side heat dissipation 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 convection heat exchanger 30 defines a central channel 38 extending in an axial direction of the radiant heat exchanger 20, and is located at the center of the space inside the radiant heat exchanger 20. The central passage 38 may be configured to circulate air or coolant. In other embodiments, both ends of the central channel 38 are provided with a closed structure, and the central channel 38 may also be configured to provide fittings such as shunt tubes. Each of the first refrigerant channel 32/second refrigerant channel 37 is preferably a microchannel tube. The heat exchange plate 31, the heat exchange cylinder 36 and the radiant heat exchange part 20 can be made of copper or aluminum.
In some embodiments of the present invention, the convective heat transfer part 30 is formed by an extrusion process for manufacturing convenience. Alternatively, the entire structure of the convection heat exchanging part 30 and the radiant heat exchanging part 20 is formed by an extrusion process. As shown in figures 1, 2, 5, 6, 7.
In some embodiments of the present invention, the refrigerant pipeline further has a main inlet pipe and a main outlet pipe; one end of each of the first refrigerant channel 32/the second refrigerant channel 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/the second refrigerant channels 37 are connected in parallel.
In other embodiments of the present invention, the radiant convective heat exchanger can 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; the head and the tail of the plurality of channel groups of each parallel unit are sequentially connected in series. When the number of the parallel units is multiple, the multiple parallel units are connected in parallel. Each channel group may have one heat exchanger plate 31 as described above. For example, the number of the heat exchange plates 31 is 16, wherein every 4 heat exchange plates 31 constitute 4 channel groups, which are arranged in series end to end, i.e. every 4 heat exchange plates 31 constitute one parallel unit, i.e. 4 parallel units in total, and the 4 parallel units are connected in parallel with each other. Further, both ends of each heat exchange plate 31 are provided with a collecting inlet pipe and a collecting outlet pipe so as to facilitate the reasonable arrangement of the pipelines.
The embodiment of the invention also provides an air conditioner which can comprise a compressor, a condenser, a throttling device and an evaporator. The evaporator and/or the condenser adopt the radiation convection type heat exchanger in any embodiment. Preferably, only the evaporator employs the radiant convection heat exchanger of any of the embodiments described above. Further, one end of the radiant heat exchanging part 20 may be provided with a fan to force air to enter the inside of the radiant heat exchanging part 20 to exchange heat with the convection heat exchanging part.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A radiant convective heat exchanger comprising:
a radiant heat exchanging part having a cylindrical shape with both ends open, configured to absorb heat or cold from an inner wall surface thereof, and radiate the heat or cold outward from an outer wall surface thereof; and
and a convection heat exchanging part disposed at an inner side of the radiation heat exchanging part, configured to generate heat or cold, and to transfer the heat or cold to air flowing through the inner side of the radiation heat exchanging part, and to transfer the heat or cold to an inner wall surface of the radiation heat exchanging part.
2. Radiation convection heat exchanger of claim 1,
the heat convection part comprises a refrigerant pipeline and radiating fins arranged on the refrigerant pipeline.
3. Radiation convection heat exchanger of claim 2,
the refrigerant pipeline comprises a plurality of heat exchange plates, and a plurality of first refrigerant channels extending along the length direction or the width direction of the heat exchange plates are arranged in each heat exchange plate; the heat radiating fins are multiple and are arranged on the heat exchange plates.
4. A radiation convection heat exchanger as set forth in claim 3,
each heat exchange plate has a first edge and a second edge extending in an axial direction of the radiant heat exchange portion; the first edge is arranged in the middle of the space inside the radiation heat exchange part, and the second edge is connected to the inner wall surface of the radiation heat exchange part;
the heat exchange plates are uniformly distributed along the circumferential direction of the radiation heat exchange part;
a plurality of radiating fins which are sequentially arranged along the radial direction of the radiation heat exchanging part are arranged between every two adjacent heat exchanging plates;
each first refrigerant channel extends along the axial direction of the radiation heat exchange part;
the first refrigerant channels in each heat exchange plate are sequentially arranged in a direction from the first edge to the second edge.
5. Radiation convection heat exchanger of claim 2,
the refrigerant pipeline comprises a plurality of coaxially arranged heat exchange cylinders, and each heat exchange cylinder is coaxially arranged with the radiation heat exchange part;
a plurality of second refrigerant channels are arranged in the wall of each heat exchange cylinder;
the number of the radiating fins is multiple; and is
At least the outer side of the innermost heat exchange cylinder is provided with a plurality of heat dissipation fins;
the inner side of the heat exchange cylinder at the outermost side is provided with a plurality of radiating fins; and the outer side of the heat exchange cylinder at the outermost side is thermally connected with the inner wall surface of the radiation heat exchange part through a plurality of radiating fins, or the outer wall surface of the heat exchange cylinder at the outermost side is integrally formed with or contacts and abuts against the inner wall surface of the radiation heat exchange part.
6. Radiation convection heat exchanger of claim 5,
each second refrigerant channel extends along the axial direction of the radiation heat exchange part;
the second refrigerant channels in the wall of each heat exchange cylinder are sequentially arranged along the circumferential direction of the heat exchange cylinder;
each radiating fin extends along the axial direction of the radiation heat exchange part to form an airflow channel extending along the axial direction of the radiation heat exchange part.
7. Radiation convection heat exchanger of claim 2,
the refrigerant pipeline comprises a plurality of circular straight pipe sections and a plurality of connecting pipe sections which are respectively connected with the two circular straight pipe sections; the heat dissipation fins are multiple and are arranged on the straight tube sections.
8. Radiation convection heat exchanger of claim 1,
the convection heat exchange part defines a central channel extending along the axial direction of the radiation heat exchange part and is positioned in the center of the space inside the radiation heat exchange part; the central passage is configured to flow air or a refrigerant.
9. Radiation convection heat exchanger of claim 1,
the outer contour of the cross section of the radiation heat exchanging part is circular, semicircular, square or fan-shaped.
10. An air conditioner comprises an evaporator and a condenser, and is characterized in that,
the evaporator and/or the condenser employ the radiation convection type heat exchanger as claimed in claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910028210.4A CN111435020A (en) | 2019-01-11 | 2019-01-11 | Radiation convection type heat exchanger and air conditioner with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910028210.4A CN111435020A (en) | 2019-01-11 | 2019-01-11 | Radiation convection type heat exchanger and air conditioner with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111435020A true CN111435020A (en) | 2020-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910028210.4A Pending CN111435020A (en) | 2019-01-11 | 2019-01-11 | Radiation convection type heat exchanger and air conditioner with same |
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| Country | Link |
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| CN (1) | CN111435020A (en) |
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- 2019-01-11 CN CN201910028210.4A patent/CN111435020A/en active Pending
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