A plate-fin-shell type high-efficiency energy-saving heat exchanger with air inlet and outlet on the same side

Abstract

The present invention discloses a plate-fin-shell type high-efficiency and energy-saving heat exchanger with an air inlet and an air outlet on the same side, comprising an outer shell and a J-shaped plate-fin heat exchange component arranged in the outer shell, wherein the J-shaped plate-fin heat exchange component comprises a long straight section of the heat exchange component, an elbow section of the heat exchange component and a short straight section of the heat exchange component which are connected in sequence, a refrigerant flow channel and an air heat exchange flow channel are provided on the J-shaped plate-fin heat exchange component, a flow channel opening at one end of the air heat exchange flow channel is connected to a second external air outlet, a flow channel opening at the other end of the air heat exchange flow channel is connected to a fan, and the other end of the fan is connected to a first external air outlet, the first external air outlet and the second external air outlet are located on the same side of the heat exchanger, a first external refrigerant interface and a second external refrigerant interface which are respectively connected to the flow channel openings at both ends of the refrigerant flow channel are provided on the outer shell, the heat exchanger, the fan and the air inlet and outlet pipelines are combined into one and the inlet and outlet are on the same side, thereby solving the problems of long pipelines, complex settings, large wind resistance and low heat exchange efficiency which exist after the split outdoor unit is moved indoors.

Description

Technical Field

[0001] The invention relates to the field of heat exchangers, in particular to a plate-fin-shell type high-efficiency energy-saving heat exchanger with an air inlet and an air outlet on the same side. Background Art

[0002] Room air conditioners are mainly used to adjust the temperature and humidity of the air in the rooms where people live and work, making people feel comfortable and convenient. However, most of the existing wall-mounted room air conditioners are split, that is, they are divided into indoor units and outdoor units. The indoor unit exchanges heat with the indoor air, and the outdoor unit exchanges heat with the outdoor air. The outdoor unit has the problem of installation danger in high-rise residential buildings, inconvenient maintenance and repair, long connecting pipes, many fault points, long time, easy dust accumulation on the outer surface of the outdoor unit heat dissipation rib tube, and high actual energy consumption. So some people have come up with many room air conditioners that do not need to install outdoor units, but such room air conditioners still have the following disadvantages. For example, window air conditioners have the disadvantages of occupying a large lighting area and making a lot of noise; mobile air conditioners have the disadvantages of occupying the floor position of the room and can only cool down locally; integrated air conditioners that enter and exit the air from the back of the shell have the disadvantages of being able to be installed on the inner side of the outer wall, being inconvenient to install on the partition wall of the room, and the installation location is still limited. The main reason why these methods cannot solve the problem well is that after the outdoor unit is moved indoors, it is not only large in size and noisy, but also has a long pipe for heat exchange with outdoor air, a complex heat exchanger setting, large wind resistance, and low heat exchange efficiency. Summary of the invention

[0003] The present invention overcomes the shortcomings of the prior art and provides a plate-fin-shell type high-efficiency energy-saving heat exchanger on the same side of the inlet and outlet, which can be used for heat exchange between a wall-mounted integrated room air conditioner and outdoor air, and has the advantages of compact structure, high heat transfer efficiency, energy saving and environmental protection, and low noise.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A plate-fin-shell type high-efficiency energy-saving heat exchanger with an air inlet and outlet on the same side, characterized in that it includes an outer shell and a J-shaped plate-fin heat exchange component arranged in the outer shell, the J-shaped plate-fin heat exchange component includes a long straight section of the heat exchange component, an elbow section of the heat exchange component and a short straight section of the heat exchange component connected in sequence, the J-shaped plate-fin heat exchange component is provided with a refrigerant flow channel and an air heat exchange flow channel, one end of the air heat exchange flow channel is connected to a second external air port, the other end of the air heat exchange flow channel is connected to a fan, the other end of the fan is connected to a first external air port, the first external air port and the second external air port are located on the same side of the heat exchanger, and the outer shell is provided with a first external refrigerant interface and a second external refrigerant interface respectively connected to the flow ports at both ends of the refrigerant flow channel.

[0006] A plate-fin-shell type high-efficiency energy-saving heat exchanger on the same side of the inlet and outlet as described above is characterized in that: the J-shaped plate-fin heat exchange component includes more than one group of refrigerant heat exchange plates, the refrigerant heat exchange plates include a first metal plate and a second metal plate, the first metal plate and the second metal plate are sealed and connected on the upper and lower sides to form a refrigerant flow channel, the first metal plate and the second metal plate are oppositely arranged on the side surfaces respectively provided with a first corrugated surface and a second corrugated surface, the flow channel openings at both ends of the refrigerant flow channel are respectively covered with a first head and a second head, the first head is provided with a first head refrigerant interface connected to a first external refrigerant interface, and the second head is provided with a second head refrigerant interface connected to a second external refrigerant interface.

[0007] The plate-fin-shell type high-efficiency energy-saving heat exchanger with the air inlet and outlet on the same side as described above is characterized in that air heat exchange fins are respectively provided on both sides of the refrigerant heat exchange plate.

[0008] As described above, a plate-fin-shell type high-efficiency energy-saving heat exchanger with an air inlet and an air outlet on the same side is characterized in that the adjacent parts of the long straight section of the heat exchange component and the short straight section of the heat exchange component of the J-shaped plate-fin heat exchange component are provided with air duct partitions, and the air heat exchange flow channel is composed of air duct partitions, refrigerant heat exchange plates, air heat exchange fins and an outer shell.

[0009] The plate-fin-shell type high-efficiency energy-saving heat exchanger with the air inlet and outlet on the same side as described above is characterized in that a plurality of pressure-equalizing grooves connecting the air heat-exchange fins are arranged in the air heat-exchange flow channel.

[0010] The plate-fin-shell type high-efficiency energy-saving heat exchanger with the air inlet and outlet on the same side as described above is characterized in that an isolation layer for sound insulation and heat insulation is provided on the outer side of the shell and the fan.

[0011] The plate-fin-shell type high-efficiency energy-saving heat exchanger with the air inlet and outlet on the same side as described above is characterized in that the fan is arranged in the shell and has one end connected to the second external air outlet through the shell.

[0012] The plate-fin-shell type high-efficiency energy-saving heat exchanger with the air inlet and outlet on the same side as described above is characterized in that the refrigerant flows in a mesh shape in the refrigerant flow channel.

[0013] As described above, a plate-fin-shell type high-efficiency energy-saving heat exchanger with the inlet and outlet on the same side is characterized in that the outer shell is provided with a long straight section shell surface, an elbow section shell surface and a short straight section shell surface which cooperate with the inner side of the long straight section of the heat exchange component, the inner curved side of the elbow section of the heat exchange component and the inner side of the short straight section of the heat exchange component in sequence.

[0014] The plate-fin-shell type high-efficiency energy-saving heat exchanger with the air inlet and outlet on the same side as described above is characterized in that the fan is an air supply fan or an exhaust fan.

[0015] The beneficial effects of the present invention are:

[0016] 1. The heat exchanger, fan, and air inlet and outlet pipes of the present invention are combined into one, and the inlet and outlet are on the same side, which solves the problems of long pipes, complex settings, large wind resistance, and low heat exchange efficiency after the split outdoor unit is moved indoors. In addition, the plate-fin shell heat exchanger is adopted, which has the advantages of compact structure, high heat transfer efficiency, small size, countercurrent heat transfer, good sealing performance, convenient sound insulation and heat insulation, energy saving and environmental protection, and low noise.

[0017] 2. The air inlet and outlet ports of the present invention are on the same side, and can be used for wall-mounted integrated room air conditioners. They can be installed on room partition walls and the inner side of exterior walls, reducing the number of outdoor air inlet and outlet pipes.

[0018] 3. The present invention can be connected to outdoor air through pipes, and the wall opening area is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the external structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal plate-fin stacking structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the air conditioning refrigeration medium heat exchange plate of the present invention;

[0023] Figure 4 This is a schematic diagram of the external structure of the second embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the external structure of Embodiment 3 of the present invention;

[0025] Figure 6 This is a schematic diagram of the external structure of the fourth embodiment of the present invention. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions of "preferred", "sub-preferred", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "preferred" or "sub-preferred" may explicitly or implicitly include at least one such feature.

[0028] Example 1 Figure 1-3 As shown, a plate-fin-shell type high-efficiency energy-saving heat exchanger with an air inlet and an air outlet on the same side is characterized in that: it includes an outer shell 100, a J-shaped plate-fin heat exchange component arranged in the outer shell 100, the J-shaped plate-fin heat exchange component includes a long straight section 1 of the heat exchange component, an elbow section 2 of the heat exchange component and a short straight section 3 of the heat exchange component connected in sequence, the J-shaped plate-fin heat exchange component is provided with a refrigerant flow channel and an air heat exchange flow channel, one end of the air heat exchange flow channel is connected to a second external air port 6, the other end of the air heat exchange flow channel is connected to a fan 5, the other end of the fan 5 is connected to a first external air port 4, the first external air port 4 and the second external air port 6 are located on the same side of the heat exchanger, and the outer shell 100 is provided with a first external refrigerant interface 7 and a second external refrigerant interface 8 respectively connected to the flow ports at both ends of the refrigerant flow channel. When in use, the refrigerant enters the refrigerant flow channel of the J-shaped plate-fin heat exchange assembly from the first external refrigerant interface 7, and is finally output from the second external refrigerant interface 8 to cool the J-shaped plate-fin heat exchange assembly; at the same time, the fan 5 is working, and the air enters the air heat exchange flow channel of the J-shaped plate-fin heat exchange assembly from the first external air port 4 to exchange heat with the refrigerant in the refrigerant flow channel, and is finally output from the second external air port 6.

[0029] like Figure 2-3As shown, the J-shaped plate-fin heat exchange assembly includes more than one group of refrigerant heat exchange plates 9, and the refrigerant heat exchange plates 9 include a first metal plate 21 and a second metal plate 23, wherein the first metal plate 21 and the second metal plate 23 are both thin metal plates; the first metal plate 21 and the second metal plate 23 are sealed and connected at the upper and lower sides to form a refrigerant flow channel, and the first metal plate 21 and the second metal plate 23 are respectively provided with a first corrugated surface 22 and a second corrugated surface 24 on the sides opposite to each other, so that the refrigerant flows in a mesh shape in the refrigerant flow channel; The flow channel openings at both ends of the refrigerant flow channel are respectively covered with a first end cap 25 and a second end cap 27. The first end cap 25 is provided with a first end cap refrigerant interface 26 connected to the first external refrigerant interface 7, and the second end cap 27 is provided with a second end cap refrigerant interface 28 connected to the second external refrigerant interface 8. The refrigerant flowing in the refrigerant flow channel is concentrated at the flow channel openings at both ends through the first end cap 25 and the second end cap 27, and enters and exits from the first end cap refrigerant interface 26 and the second end cap refrigerant interface 28. Figure 2-3 As shown, air heat exchange fins 10 are respectively provided on both sides of the refrigerant heat exchange plate 9; the adjacent parts of the heat exchange component long straight section 1 and the heat exchange component short straight section 3 of the J-shaped plate-fin heat exchange component are provided with air duct partitions 31, and the air heat exchange flow channel is composed of the air duct partitions 31, the refrigerant heat exchange plate 9, the air heat exchange fins 10 and the outer shell 100.

[0030] After the outdoor air is introduced into the first external air port 4 through the air inlet pipe, it passes through the fan 5 and the air heat exchange flow channel, and then flows out of the room from the second external air port 6 through the air outlet pipe. The refrigerant enters from the first external refrigerant interface 7, passes through the first head refrigerant interface 26 on the first head 25, the first head 25, the refrigerant flow channel, the second head 27, and finally flows out from the second head refrigerant interface 28 on the second head 27, thereby realizing heat exchange between the outdoor air and the refrigerant.

[0031] like Figure 2-3 As shown, a plurality of pressure equalizing grooves 32 are provided in the air heat exchange flow channel, which are connected to each air heat exchange fin 10, so that each flow channel spaced between the air heat exchange fins 10 is connected, so that each flow channel has uniform heat exchange.

[0032] like Figure 1 As shown, the outer sides of the housing 100 and the fan 5 are provided with an isolation layer 200 for sound insulation and heat insulation, which may be an isolation cotton layer, indicated by a thick line in the figure, to prevent the internal noise and heat from being transmitted outward.

[0033] In the first embodiment, the fan 5 is an air supply fan, the first external air port 4 is an air inlet, the second external air port 6 is an air outlet, the first external refrigerant interface 7 is a refrigerant inlet, and the second external refrigerant interface 8 is a refrigerant inlet outlet.

[0034] Example 2 Figure 4As shown, the difference between the second embodiment and the first embodiment is that the fan 5 of the second embodiment is arranged in the housing 100, and one end is connected to the second external air outlet 6 through the housing 100 to prevent the noise and heat of the fan 5 from being transmitted to the outside.

[0035] Example 3 Figure 5 As shown, the difference between Example 3 and Example 1 is that the outer shell 100 is provided with a long straight section shell surface 101, an elbow section shell surface 102 and a short straight section shell surface 103 which are matched with the inner side of the long straight section 1 of the heat exchange component, the inner curved side of the elbow section 2 of the heat exchange component, and the inner side of the short straight section 3 of the heat exchange component in sequence, so that the long straight section shell surface 101, the elbow section shell surface 102 and the short straight section shell surface 103 are respectively matched with the long straight section, the elbow section and the short straight section of the air heat exchange fins adjacent to the inner curved side to form an air heat exchange flow channel.

[0036] Embodiment 4 Figure 6 As shown, the difference between Example 4 and Example 2 is that the outer shell 100 is provided with a long straight section shell surface 101, an elbow section shell surface 102 and a short straight section shell surface 103 which are matched with the inner side of the long straight section 1 of the heat exchange component, the inner curved side of the elbow section 2 of the heat exchange component, and the inner side of the short straight section 3 of the heat exchange component in sequence, so that the long straight section shell surface 101, the elbow section shell surface 102 and the short straight section shell surface 103 are respectively matched with the long straight section, the elbow section and the short straight section of the air heat exchange fins adjacent to the inner curved side to form an air heat exchange flow channel.

[0037] Example 5 Figure 1 As shown, the difference between Example 5 and Example 1 is that the fan 5 is an exhaust fan, the first external air port 4 is an air outlet, the second external air port 6 is an air inlet, the first external refrigerant interface 7 is a refrigerant outlet, and the second external refrigerant interface 8 is a refrigerant inlet, and countercurrent heat transfer is still used.

[0038] Example 6 Figure 4 As shown, the difference between Example 6 and Example 2 is that the fan 5 is an exhaust fan, the first external air port 4 is an air outlet, the second external air port 6 is an air inlet, the first external refrigerant interface 7 is a refrigerant outlet, and the second external refrigerant interface 8 is a refrigerant inlet, and it is still countercurrent heat transfer.

[0039] Embodiment 7 Figure 5 As shown, the difference between the seventh embodiment and the third embodiment is that the fan 5 is an exhaust fan, the first external air port 4 is an air outlet, the second external air port 6 is an air inlet, the first external refrigerant interface 7 is a refrigerant outlet, and the second external refrigerant interface 8 is a refrigerant inlet, and countercurrent heat transfer is still used.

[0040] Embodiment 8 Figure 6As shown, the difference between the eighth embodiment and the fourth embodiment is that the fan 5 is an exhaust fan, the first external air port 4 is an air outlet, the second external air port 6 is an air inlet, the first external refrigerant interface 7 is a refrigerant outlet, and the second external refrigerant interface 8 is a refrigerant inlet, and countercurrent heat transfer is still used.

[0041] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A plate-fin-shell type high-efficiency energy-saving heat exchanger with an air inlet and an air outlet on the same side, characterized in that: The invention comprises a housing (100) and a J-shaped plate-fin heat exchange component arranged in the housing (100), wherein the J-shaped plate-fin heat exchange component comprises a heat exchange component long straight section (1), a heat exchange component elbow section (2) and a heat exchange component short straight section (3) connected in sequence, wherein the J-shaped plate-fin heat exchange component is provided with a refrigerant flow channel and an air heat exchange flow channel, wherein the flow channel openings at both ends of the air heat exchange flow channel are arranged to have different distances from the elbow section, wherein the flow channel opening connected to the long straight section is longer from the elbow section than the flow channel opening connected to the short straight section, wherein the flow channel opening of the long straight section is connected to a second external air outlet (6 ), a fan (5) is connected to the other end of the air heat exchange flow channel, the other end of the fan (5) is connected to a first external air port (4), the first external air port (4) and the second external air port (6) are located on the same side of the heat exchanger, the housing (100) is provided with a first external refrigerant interface (7) and a second external refrigerant interface (8) respectively connected to the two end flow channels of the refrigerant flow channel, the fan (5) is an air supply fan or an exhaust fan, the J-shaped plate-fin heat exchange assembly includes more than one set of refrigerant heat exchange plates (9), the refrigerant heat exchange plates (9) include A first metal plate (21) and a second metal plate (23) are provided. The first metal plate (21) and the second metal plate (23) are respectively sealed and connected at the upper and lower sides to form a refrigerant flow channel. The first metal plate (21) and the second metal plate (23) are respectively provided with a first corrugated surface (22) and a second corrugated surface (24) on the side surfaces arranged opposite to each other. The flow channel openings at both ends of the refrigerant flow channel are respectively covered with a first head cover (25) and a second head cover (27). The first head cover (25) is provided with a first head refrigerant interface (26) connected to a first external refrigerant interface (7). ), a second end cap refrigerant interface (28) connected to a second external refrigerant interface (8) is provided on the second end cap (27), an air duct spacer (31) is provided at the adjacent portions of the heat exchange component long straight section (1) and the heat exchange component short straight section (3) of the J-shaped plate-fin heat exchange component, the air heat exchange flow channel is composed of the air duct spacer (31), the refrigerant heat exchange plate (9), the air heat exchange fins (10) and the housing (100), the fan (5) is arranged in the housing (100), and one end is connected to the first external air port (4) through the housing (100).

2. A plate-fin-shell type high-efficiency energy-saving heat exchanger with an air inlet and an air outlet on the same side as in claim 1, characterized in that: Air heat exchange fins (10) are respectively provided on both sides of the refrigerant heat exchange plate (9).

3. The plate-fin-shell type high-efficiency energy-saving heat exchanger with the air inlet and outlet on the same side according to claim 1, characterized in that: A plurality of pressure equalizing grooves (32) communicating with the air heat exchange fins (10) are provided in the air heat exchange flow channel.

4. The plate-fin-shell type high-efficiency energy-saving heat exchanger with the air inlet and outlet on the same side according to claim 1, characterized in that: An isolation layer (200) for sound insulation and heat insulation is provided on the outer sides of the housing (100) and the fan (5).

5. The plate-fin-shell type high-efficiency energy-saving heat exchanger with the air inlet and outlet on the same side according to claim 1, characterized in that: The refrigerant flows in a network pattern in the refrigerant flow channel.

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