CN209877163U - Radiation convection type heat exchanger and air conditioner with same - Google Patents
Radiation convection type heat exchanger and air conditioner with same Download PDFInfo
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- CN209877163U CN209877163U CN201920048507.2U CN201920048507U CN209877163U CN 209877163 U CN209877163 U CN 209877163U CN 201920048507 U CN201920048507 U CN 201920048507U CN 209877163 U CN209877163 U CN 209877163U
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Abstract
The utility model relates to a radiation convection type heat exchanger and have its air conditioner. Specifically, the radiation convection type heat exchanger includes: a radiation heat exchange part in a cylindrical shape with openings at both ends, 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; a first convection heat exchanging part disposed at an inner side of the radiation heat exchanging part, configured to generate heat or cold, and transfer the heat or cold to air flowing through the inner side of the radiation heat exchanging part, and transfer the heat or cold to an inner wall surface of the radiation heat exchanging part; and a second convection heat exchanging part configured to generate heat or cold and to 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. On the premise of ensuring the heating or refrigerating capacity, the air blowing feeling of the human body is reduced, and the thermal comfort of the human body is improved. The radiation heat exchange part and the first convection heat exchange part mainly bear sensible heat recombination; the second convection heat exchange part mainly bears latent heat load.
Description
Technical Field
The utility model relates to a refrigeration field of heating especially relates to a radiation convection type heat exchanger and have its air conditioner.
Background
The existing air-conditioning 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 heat 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-conditioning heat exchanger is easy to cause heat discomfort of the human body.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose of first aspect aims at overcoming at least one defect of current heat exchanger, provides a radiation convection type heat exchanger, when with human or room heat transfer, can show the hot discomfort who reduces the human body.
The utility model discloses the purpose of second aspect provides an air conditioner with above-mentioned radiation convection heat exchanger.
According to the utility model discloses a first aspect, the utility model provides a radiation convection type heat exchanger, it 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;
a first convection heat exchanging part disposed at an inner side of the radiation heat exchanging part, configured to generate heat or cold, and transfer the heat or cold to air flowing through the inner side of the radiation heat exchanging part, and transfer the heat or cold to an inner wall surface of the radiation heat exchanging part; and
a second convection heat exchanging part configured to generate heat or cold and to 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, at least one first refrigerant flow path is arranged in the first convection heat exchanging part; the second convection heat exchange part is provided with at least one second refrigerant flow path; at least one first refrigerant flow path and at least one second cold 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 at the outer side of one end of the radiation heat exchanging part, so that air enters the radiation heat exchanging part from the one end of the radiation heat exchanging part and flows out from the other end of the radiation heat exchanging part after exchanging heat with the first convection heat exchanging part;
the second fan is arranged on one side of the second convection heat exchange part.
Optionally, the radiant convective heat exchanger further comprises: a third fan disposed outside one end of the radiation heat exchanging portion, configured to cause a part of air to enter the radiation heat exchanging portion from the one end of the radiation heat exchanging portion, and to flow out from the other end of the radiation heat exchanging portion after exchanging heat with the first convection heat exchanging portion; and causing part of the air to flow through the second convection heat exchange part.
Optionally, a total volume of a refrigerant flowing space in the first convection heat exchanging part is greater than a total volume of a refrigerant flowing space in the second convection heat exchanging part, so that a refrigerant flow rate in the first convection heat exchanging part is greater than a refrigerant flow rate in the second convection heat exchanging part.
Optionally, the first convection heat exchange part and the second convection heat exchange part both adopt a finned tube structure.
Optionally, the first convection heat exchange part comprises a plurality of heat exchange plates with first refrigerant channels, and each heat exchange plate has a first edge and a second edge extending along the axial direction of the radiant heat exchange part; 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; or the like, or, alternatively,
the first convection heat exchange part comprises a plurality of coaxially arranged heat exchange cylinders, and each heat exchange cylinder is coaxially arranged with the radiation heat exchange part; and a plurality of second refrigerant channels are arranged on the wall of each heat exchange cylinder.
According to the utility model discloses a second aspect, the utility model provides an air conditioner, including evaporimeter and condenser, the evaporimeter and/the condenser adopts any kind of above-mentioned radiation convection heat exchanger.
Optionally, the air conditioner further comprises a compressor and a throttling device; the evaporator adopts any one of the radiation convection type heat exchangers, and the first convection heat exchange part is connected with the second convection heat exchange part in series; and the first convection heat exchanging part is arranged at the upstream of the second convection heat exchanging part, an inlet of the first convection heat exchanging part is communicated with an outlet of the throttling device, and an outlet of the second convection heat exchanging part is communicated with an inlet of the compressor.
In the radiation convection type heat exchanger and the air conditioner of the utility model, because 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 feeling of the human body can be reduced and the thermal comfort of the human body can be increased 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, in the radiation convection type heat exchanger of the utility model, the radiation heat exchanging part and the first convection heat exchanging part mainly undertake sensible heat recombination; the second convection heat exchange part mainly bears latent heat load.
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 present invention will be described in detail hereinafter, by way of illustration and not by way of 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 block diagram of a radiation convection heat exchanger according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a radiant heat exchanging section and a first convection heat exchanging section in the radiant convection heat exchanger shown in fig. 1;
FIG. 3 is a schematic cross-sectional view of a radiant heat exchange section and a first convective heat exchange section of the radiant convective heat exchanger shown in FIG. 1;
fig. 4 is a schematic cross-sectional view of a partial structure of a radiation convection heat exchanger according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a partial structure of a radiation convection heat exchanger according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a radiant heat exchange section and a first convective heat exchange section of the radiant convective heat exchanger shown in FIG. 1;
FIG. 7 is a schematic cross-sectional view of a radiant heat exchange section and a first convective heat exchange section of the radiant convective heat exchanger shown in FIG. 1;
fig. 8 is a schematic cross-sectional view of a radiant heat exchanging section and a first convection heat exchanging section in the radiant convection type heat exchanger shown in 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 radiation convection heat exchanger according to one embodiment of the present invention. As shown in fig. 1 and referring to fig. 2 to 8, an embodiment of the present invention provides a radiant convection type heat exchanger, which may include a radiant heat exchanging part 20, a first convection heat exchanging part 30, and a second convection heat exchanging part 40. The radiant heat exchanging part 20 and the first convection heat exchanging part 30 may constitute a radiant convection heat exchanging part.
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 first convective heat exchange part 30 is disposed inside the radiant heat exchange 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 exchange part 20 and to transfer the heat or cold to an inner wall surface of the radiant heat exchange part 20. The radiation heat exchanging part 20 is located on the outer shell surface of the radiation convection heat exchanging part, and can be directly used as the outer shell of the radiation convection heat exchanging part. The second convection heat exchanging part 40 is configured to generate heat or cold and to exchange heat with air flowing therethrough. The radiation heat exchange part is disposed at an upper side or a lower side of the second convection heat exchange part 40. Preferably, the radiant heat exchanging part 20 is disposed at an upper side of the second convection heat exchanging part 40.
The embodiment of the utility model provides an in during operation, first convection heat exchanger 30 produces heat or cold volume, carries out the heat exchange with the air of radiation heat exchanger portion 20 inboard to and carry out the heat exchange with the internal face of radiation heat exchanger portion 20, and the air after the heat exchange can flow out radiation heat exchanger portion 20, is used for indoor or human cold-proof or cooling, and the outer wall of radiation heat exchanger portion 20 can outwards radiate heat or cold volume, is used for indoor or human cold-proof 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. The radiation heat exchanging part 20 and the first convection heat exchanging part 30 mainly undertake sensible heat recombination; the second convective heat transfer portion 40 mainly takes a latent heat load.
In some embodiments of the present invention, the first convection heat exchanging part 30 includes a cooling medium pipeline and a heat dissipating fin 33 disposed on the cooling medium 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. I.e. the first convective heat transfer section 30 may be a conventional finned tube heat exchanger. The second convective heat transfer section 40 can be a conventional finned tube heat exchanger.
In some preferred embodiments of the present invention, as shown in fig. 2 and 3, the refrigerant pipeline includes a plurality of heat exchange plates 31, and a plurality of first refrigerant channels 32 extending along the length direction or the 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. 2. 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. 3.
The utility model discloses a in some embodiments, be provided with a plurality of radiating fin 33 that set gradually along the radial direction of radiation heat transfer portion 20 between every two adjacent heat exchange plates 31, be provided with one or more louvres on every radiating fin 33, constitute fretwork formula 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 first edge points to the second edge, and the distance between two adjacent first refrigerant channels 32 has one, that is, the 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. 4, each of the heat dissipating fins 33 may be a flat plate-shaped 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. 5, each heat dissipating fin 33 may be a pin-shaped heat dissipating fin 35, and both sides of each heat exchanging plate 31 are provided with a plurality of pin-shaped heat dissipating fins 35 perpendicular to the heat exchanging plate 31. In some optional 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. 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 pipeline includes a plurality of heat exchanging cylinders 36 coaxially disposed, and each heat exchanging cylinder 36 is coaxially disposed with the radiant heat exchanging portion 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 first convection heat exchanging portion 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 heat exchanging cylinders 36 and the inner side or the outer side thereof. 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 exchanging cylinders 36, the area of the cross section of each second refrigerant channel 37 on the outer heat exchanging cylinder 36 is larger than the area of the cross section of each second refrigerant channel 37 on the inner heat exchanging 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 first convective heat exchanging part 30 defines a central channel 38 extending along the axial direction of the radiant heat exchanging part 20, and is located at the center of the space inside the radiant heat exchanging part 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 first convective heat transfer part 30 is formed by an extrusion process for manufacturing convenience. Alternatively, the whole of the first convective heat exchanging part 30 and the radiant heat exchanging part 20 is formed by an extrusion process. As shown in fig. 2-8.
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 convection heat exchanging part 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; 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 inlet of at least one parallel unit is connected to the inlet manifold and the outlet is connectable to the outlet manifold.
In some embodiments of the present invention, the first convection heat exchanging part 30 is connected in series with the second convection heat exchanging part 40; and the first convection heat exchanging section 30 is disposed upstream of the second convection heat exchanging section 40. In some optional embodiments of the present invention, at least one first refrigerant flow path is provided in the first convection heat exchanging portion 30; the second convection heat exchanging part 40 has at least one second refrigerant flow path; at least one first refrigerant flow path and at least one second cold flow path are connected in series, in parallel or in series-parallel.
In some embodiments of the present invention, the radiation convection heat exchanger further comprises a first fan and a second fan; the first fan is arranged at the outer side of one end of the radiation heat exchange part, so that air enters the radiation heat exchange part from one end of the radiation heat exchange part and flows out from the other end of the radiation heat exchange part after exchanging heat with the first convection heat exchange part; the second fan is disposed at one side of the second convection heat exchanging part 40. The first fan and the second fan may be individually controllable.
In some preferred embodiments of the present invention, as shown in fig. 1, the radiation convection type heat exchanger further includes a third fan 50, the third fan 50 is disposed outside one end of the radiation heat exchanging portion, and configured to promote a part of air to enter the radiation heat exchanging portion from one end of the radiation heat exchanging portion and to flow out from the other end of the radiation heat exchanging portion after exchanging heat with the first convection heat exchanging portion; and causing a part of the air to flow through the second convection heat exchanging part 40.
Further, the total volume of the refrigerant flowing space in the first convection heat exchanging part is greater than the total volume of the refrigerant flowing space in the second convection heat exchanging part 40, so that the refrigerant flow rate in the first convection heat exchanging part is greater than the refrigerant flow rate in the second convection heat exchanging part 40.
The embodiment of the present invention further provides an air conditioner, as shown in fig. 9, which may include a compressor 60, a condenser 70, a throttling 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 exchanging part 30 is connected in series with the second convection heat exchanging part 40; and the first convection heat exchanging part 30 is disposed at the upstream of the second convection heat exchanging part 40, an inlet of the first convection heat exchanging part 30 is communicated with an outlet of the throttling device, and an outlet of the second convection heat exchanging part 40 is communicated with an inlet of the compressor. The throttle 80 may be located either on the indoor side or the outdoor side.
When the air conditioner works, such as refrigeration, a refrigerant firstly passes through the first convection heat exchange part 30 and then passes through the second convection heat exchange part 40; the second convection heat exchanging part 40 has a low temperature and is used for dehumidification, and the first convection heat exchanging part 30 has a slightly high temperature and is mainly used for refrigeration. In heating, the first convection heat exchanging part 30 transfers heat to the indoor in the form of heat radiation and convection heat exchange, and the second convection heat exchanging part 40 may be used for spray humidification.
Thus, 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 in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present 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;
a first convection heat exchanging part disposed at an inner side of the radiation heat exchanging part, configured to generate heat or cold, and transfer the heat or cold to air flowing through the inner side of the radiation heat exchanging part, and transfer the heat or cold to an inner wall surface of the radiation heat exchanging part; and
a second convection heat exchanging part configured to generate heat or cold and to 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.
2. Radiation convection heat exchanger of claim 1,
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;
at least one first refrigerant flow path and at least one second cold flow path are connected in series, in parallel or in series-parallel.
3. Radiation convection heat exchanger of claim 1,
the first convection heat exchange part is connected with the second convection heat exchange part in series; and is
The first convection heat exchange part is disposed upstream of the second convection heat exchange part.
4. A radiation convection heat exchanger as set forth in claim 1 further comprising a first fan and a second fan;
the first fan is arranged at the outer side of one end of the radiation heat exchanging part, so that air enters the radiation heat exchanging part from the one end of the radiation heat exchanging part and flows out from the other end of the radiation heat exchanging part after exchanging heat with the first convection heat exchanging part;
the second fan is arranged on one side of the second convection heat exchange part.
5. A radiation convection heat exchanger as set forth in claim 1 and further comprising:
a third fan disposed outside one end of the radiation heat exchanging portion, configured to cause a part of air to enter the radiation heat exchanging portion from the one end of the radiation heat exchanging portion, and to flow out from the other end of the radiation heat exchanging portion after exchanging heat with the first convection heat exchanging portion; and causing part of the air to flow through the second convection heat exchange part.
6. Radiation convection heat exchanger of claim 1,
the total volume of the refrigerant flowing space in the first convection heat exchanging part is larger than that of the refrigerant flowing space in the second convection heat exchanging part, so that the refrigerant flow rate in the first convection heat exchanging part is larger than that in the second convection heat exchanging part.
7. Radiation convection heat exchanger of claim 1,
the first convection heat exchange part and the second convection heat exchange part both adopt fin tube structures.
8. A radiation convection heat exchanger as set forth in claim 7,
the first convection heat exchange part comprises a plurality of heat exchange plates with first refrigerant channels, and 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, and the second edge is connected to the inner wall surface of the radiation heat exchange part; or the like, or, alternatively,
the first convection heat exchange part comprises a plurality of coaxially arranged heat exchange cylinders, and each heat exchange cylinder is coaxially arranged with the radiation heat exchange part; and a plurality of second refrigerant channels are arranged on the wall of each heat exchange cylinder.
9. An air conditioner comprising an evaporator and a condenser, wherein the evaporator and/or the condenser employs the radiation convection type heat exchanger as claimed in claims 1 to 8.
10. The air conditioner of claim 9, further comprising a compressor and a throttling device;
the evaporator adopts the radiation convection type heat exchanger in claims 1 to 8, and the first convection heat exchange part is connected with the second convection heat exchange part in series; and the first convection heat exchanging part is arranged at the upstream of the second convection heat exchanging part, an inlet of the first convection heat exchanging part is communicated with an outlet of the throttling device, and an outlet of the second convection heat exchanging part is communicated with an inlet of the compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920048507.2U CN209877163U (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 |
|---|---|---|---|
| CN201920048507.2U CN209877163U (en) | 2019-01-11 | 2019-01-11 | Radiation convection type heat exchanger and air conditioner with same |
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| Publication Number | Publication Date |
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| CN209877163U true CN209877163U (en) | 2019-12-31 |
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| CN201920048507.2U Active CN209877163U (en) | 2019-01-11 | 2019-01-11 | Radiation convection type heat exchanger and air conditioner with same |
Country Status (1)
| Country | Link |
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| CN (1) | CN209877163U (en) |
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2019
- 2019-01-11 CN CN201920048507.2U patent/CN209877163U/en active Active
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