Heat exchange structure and air conditioning system

Abstract

The utility model provides a heat exchange structure and an air conditioning system, and the heat exchange structure comprises a first cylinder body, a second cylinder body and a third cylinder body, the second barrel is arranged outside the first barrel in a sleeving mode, a cooling cavity is defined by the second barrel and the first barrel, the cooling cavity is used for guiding condensate water generated by refrigeration of the evaporator, and cooling of the condensate water on the high-temperature refrigerant is achieved through heat conduction of the first barrel; the first barrel and the cooling cavity are each internally provided with a drainage plate for increasing the flow path. In this way, recycling of low-temperature condensate water generated in the refrigeration process of the evaporator is achieved, and energy waste is avoided; furthermore, drainage plates for increasing the flow path are arranged in the first barrel and the cooling cavity, the drainage plate of the first barrel can prolong the flow path of the high-temperature refrigerant, and the drainage plate in the cooling cavity can prolong the flow path of the condensate water, so that the flow directions of the high-temperature refrigerant and the condensate water are changed; and the heat exchange contact area and the heat exchange time of the condenser and the condenser are increased, and the cooling effect of condensate water on high-temperature refrigerants is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of air conditioning technology, and in particular to a heat exchange structure and an air conditioning system. Background Art

[0002] When using the car air conditioner, the high temperature and high humidity air is cooled by the air conditioner evaporator and then blown into the cab for cooling. When the air temperature drops below the dew point temperature, the moisture in the air will condense into water droplets and be directly discharged to the outside of the car through the condensate discharge pipe. The existing design does not recycle the low temperature condensate, resulting in energy waste. Utility Model Content

[0003] In view of this, the present application provides a heat exchange structure that can recycle the low-temperature condensed water generated during the refrigeration process of air-conditioning evaporative gas, and exchange heat with the high-temperature refrigerant to achieve cooling of the high-temperature refrigerant by the condensed water. The present application also provides an air-conditioning system including the above-mentioned heat exchange structure.

[0004] In order to achieve the above objectives, this application provides the following technical solutions:

[0005] A heat exchange structure, comprising:

[0006] The first cylinder is used to guide the high-temperature refrigerant;

[0007] The second cylinder is sleeved outside the first cylinder and forms a cooling cavity with the first cylinder, wherein the cooling cavity is used to guide the condensed water generated by the evaporator refrigeration and realize the cooling of the high-temperature refrigerant by the condensed water through the heat conduction of the first cylinder;

[0008] Wherein, the first cylinder and the cooling cavity are both provided with guide plates for increasing the flow path.

[0009] Optionally, in the above heat exchange structure, a mounting opening is formed at one end of the second cylinder;

[0010] The first cylinder includes an extension section extending into the second cylinder. The first cylinder is fixed to the mounting opening. A reserved gap is provided between an outer wall of the extension section and an inner wall of the second cylinder to enclose the cooling cavity.

[0011] Optionally, in the above-mentioned heat exchange structure, the top of the first cylinder extends out of the installation port of the second cylinder, a first inlet is provided at the top of the first cylinder, a first outlet is provided at the bottom of the first cylinder, the first outlet extends out of the second cylinder, and in the axial direction of the first cylinder, the first inlet and the first outlet are staggered.

[0012] Optionally, in the above heat exchange structure, a second inlet is provided near the top of the second cylinder, and a second outlet is provided near the bottom of the second cylinder. In the circumferential direction of the second cylinder, the second inlet is aligned with the second outlet.

[0013] Optionally, in the above heat exchange structure, in a cross section perpendicular to the axial direction of the first cylinder, a line connecting the projection of the first inlet and the projection of the first outlet passes through the center of the projection of the first cylinder.

[0014] Optionally, in the above heat exchange structure, in a cross section perpendicular to the axial direction of the second cylinder, a line connecting the projection of the second inlet and the projection of the second outlet passes through the center of the projection of the second cylinder.

[0015] Optionally, in the above heat exchange structure, along the circumference of the first cylinder, the first cylinder is divided into a first semicircular portion and a second semicircular portion;

[0016] The guide plate includes a plurality of first guide plates disposed in the first cylinder, and along the axial direction of the heat exchange structure, the plurality of first guide plates are alternately disposed on the inner side wall of the first semicircular portion and the inner side wall of the second semicircular portion.

[0017] Optionally, in the above heat exchange structure, the guide plate includes a plurality of second guide plates arranged in the cooling chamber, and along the axial direction of the heat exchange structure, the plurality of second guide plates are alternately arranged on the outer wall of the first cylinder and the inner wall of the second cylinder.

[0018] Optionally, in the above heat exchange structure, the first guide plate includes a first semi-annular plate and a second semi-annular plate, the first semi-annular plate is fixed to the inner side wall of the first semicircular portion, and the second semi-annular plate is fixed to the inner side wall of the second semicircular portion.

[0019] Optionally, in the above heat exchange structure, the second guide plate includes a first hollow annular plate and a second hollow annular plate, the inner circumference of the first hollow annular plate is fixed to the outer wall of the first cylinder, and the outer circumference of the second hollow annular plate is fixed to the inner wall of the second cylinder.

[0020] Optionally, in the above heat exchange structure, the first cylinder and the second cylinder are metal cylinders made of the same material, and are welded to form the closed cooling chamber, and a heat insulation layer is provided on the outer surface of the first cylinder.

[0021] An air conditioning system includes an evaporator, an HVAC drip pipe, a compressor, the heat exchange structure described above, and a condenser;

[0022] The HVAC drip pipe is connected to the cooling cavity of the heat exchange structure;

[0023] The evaporator, the compressor, the first cylinder of the heat exchange structure, and the condenser are connected in an end-to-end cycle in sequence; or, the evaporator, the compressor, the condenser, and the first cylinder of the heat exchange structure are connected in an end-to-end cycle in sequence.

[0024] The heat exchange structure provided in the present application is provided with a first cylinder and a second cylinder which are sleeved and capable of heat exchange, the outer wall of the sleeved first cylinder and the inner wall of the second cylinder form a cooling chamber, the first cylinder is used to guide the high-temperature refrigerant, and the cooling chamber is used to guide the condensed water generated by the evaporator refrigeration, and the condensed water cools the high-temperature refrigerant through the heat conduction of the first cylinder; as above, the recycling of the low-temperature condensed water generated in the evaporator refrigeration process is realized, and energy waste is avoided; further, the first cylinder and the cooling chamber are both provided with guide plates for increasing the flow path, the guide plates in the first cylinder can extend the flow path of the high-temperature refrigerant, and the guide plates in the cooling chamber can extend the flow path of the low-temperature condensed water; as above, the flow directions of the high-temperature refrigerant and the condensed water are changed, the heat exchange contact area and heat exchange time of the two are increased, and the cooling effect of the condensed water on the high-temperature refrigerant is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0026] Figure 1 A front cross-sectional view of the heat exchange structure provided in this embodiment;

[0027] Figure 2 A schematic diagram of guiding condensed water in a cooling cavity of a heat exchange structure provided in this embodiment;

[0028] Figure 3 This is a schematic diagram of guiding high-temperature refrigerant in the first cylinder of the heat exchange structure provided in this embodiment.

[0029] exist Figure 1-3 middle:

[0030] 1-first cylinder, 2-second cylinder, 3-first guide plate, 4-second guide plate;

[0031] 11-first inlet, 12-first outlet;

[0032] 21- second inlet, 22- second outlet;

[0033] 31-first semi-annular plate, 32-second semi-annular plate;

[0034] 41 - a first hollow annular plate, 42 - a second hollow annular plate. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0036] like Figure 1 As shown, an embodiment of the present application provides a heat exchange structure, which can be installed in an air conditioning system so that it can at least cool the high-temperature refrigerant. The heat exchange structure mainly includes a first cylinder 1 and a second cylinder 2, and the high-temperature refrigerant flows in the inner cavity of the first cylinder 1; the second cylinder 2 is sleeved outside the first cylinder 1, and the inner wall of the second cylinder 2 and the outer wall of the first cylinder 1 form a cooling cavity. The low-temperature condensed water generated during the evaporator refrigeration process flows in the cooling cavity, and the heat conduction of the first cylinder 1 realizes the cooling of the high-temperature refrigerant by the low-temperature condensed water. The first cylinder 1 and the cooling cavity are both provided with a guide plate that increases the flow path.

[0037] It should be noted that the high temperature and low temperature in the high-temperature refrigerant and low-temperature condensed water mentioned above are relative high temperature and low temperature. The low temperature refers to a temperature lower than the high temperature of the high-temperature refrigerant, and the high temperature refers to a temperature higher than the low temperature of the condensed water. The low-temperature condensed water is used to cool the high-temperature refrigerant.

[0038] The heat exchange structure of the present application realizes the recycling of low-temperature condensed water generated in the refrigeration process of the evaporator, avoiding energy waste. The low-temperature condensed water cools the high-temperature refrigerant to reduce the temperature of the high-temperature refrigerant, and the cooled refrigerant is used in the refrigeration cycle of the evaporator. Furthermore, the first cylinder 1 and the cooling chamber are both provided with a guide plate for increasing the flow path. The guide plate of the first cylinder 1 can extend the flow path of the high-temperature refrigerant, and the guide plate in the cooling chamber can extend the flow path of the condensed water; as above, the flow direction of the high-temperature refrigerant and the condensed water is changed, the contact area and heat exchange time between the high-temperature refrigerant and the condensed water are increased, and the cooling effect of the condensed water on the high-temperature refrigerant is effectively improved.

[0039] In some embodiments, a mounting opening is formed at one end of the second barrel 2, and the mounting opening is used for the insertion of the first barrel 1. The first barrel 1 includes an extension portion extending into the second barrel 2, and the first barrel 1 is fixed to the mounting opening, and a reserved gap is provided between the outer wall of the extension section and the inner wall of the second barrel 2 to enclose a cooling cavity.

[0040] It should be noted that a mounting opening is provided on the top wall of the second cylinder 2, and the size of the mounting opening is adapted to the size of the first cylinder 1, so that the first cylinder 1 can be inserted into the interior of the second cylinder 2. When the extension portion of the first cylinder 1 is completely inserted into the interior of the second cylinder 2, the outer wall of the first cylinder 1 is circumferentially fixed at the mounting opening. Further, the first cylinder 1 can be welded to the mounting opening.

[0041] It should be further explained that there is a reserved gap between the outer wall of the extension section and the inner wall of the second cylinder 2, which means that there is a gap between the circumferential outer wall of the extension section and the circumferential inner wall of the second cylinder 2 to form an annular space. At the same time, there is also a gap between the outer bottom wall of the extension section and the inner bottom wall of the second cylinder to form a columnar space. The columnar space is connected to the annular space to form a cooling chamber of the heat exchange structure.

[0042] The extension section of the present application does not extend to contact the bottom wall of the second cylinder 2, and a reserved gap is retained between the extension section and the bottom wall of the second cylinder 2. The cooling chamber can cover the circumferential outer wall of the first cylinder 1 while also covering the bottom wall of the first cylinder 1 in the circumferential direction; as above, the heat conduction area of ​​the condensed water in the cooling chamber in contact with the first cylinder 1 is effectively increased, thereby effectively improving the heat exchange efficiency.

[0043] In some embodiments, the top of the first cylinder 1 does not extend into the second cylinder, and a first inlet 11 is disposed at the top of the first cylinder 1; a first outlet 12 is disposed at the bottom of the first cylinder 1, and the first outlet 12 extends out of the second cylinder 2. In the axial direction of the first cylinder 1, the first inlet 11 and the first outlet 12 are staggered.

[0044] It should be noted that the top of the first cylinder 1 does not extend into the second cylinder 2, which means that the top of the first cylinder 1 protrudes from the mounting opening of the second cylinder 2, that is, the top of the first cylinder 1 extends out of the mounting opening of the second cylinder 2, or the top of the first cylinder 1 is arranged flush with the mounting opening, and the top of the outer wall of the first cylinder 1 can be clamped and fixed to the mounting opening.

[0045] The staggered arrangement of the first inlet 11 and the first outlet 12 means that the first inlet 11 and the first outlet 12 are not collinear along the axial direction of the first cylinder 1 , that is, in a cross section perpendicular to the axial direction of the first cylinder 1 , the projection of the first inlet 11 and the projection of the first outlet 12 do not overlap.

[0046] Preferably, the first inlet 11 is a vertical tubular structure, and the first inlet 11 is vertically formed at the top of the first cylinder 1; the first outlet 12 is a vertical tubular structure, and the first outlet 12 is vertically formed at the bottom of the first cylinder 1. Of course, the first inlet 11 and the first outlet 12 can also be bent tubular structures with a bending angle, and can also be arranged at a certain inclination angle on the first cylinder 1. The specific arrangement form is selected according to actual needs, and will not be repeated here.

[0047] The first inlet 11 is arranged at the top of the first cylinder 1, and the first outlet 12 is arranged at the bottom of the first cylinder 1, so that the high-temperature refrigerant can flow smoothly under the action of its own gravity. The first inlet 11 and the first outlet 12 are staggered, which can ensure that the high-temperature refrigerant entering through the first inlet 11 will not flow out directly through the first outlet 12, so that the high-temperature refrigerant is stored in the first cylinder 1, increasing the heat exchange area between the high-temperature refrigerant and the condensed water; at the same time, the movement path of the high-temperature refrigerant to the bottom of the first cylinder 1 is further extended, thereby extending the time for the high-temperature refrigerant to exchange heat with the condensed water, so that the condensed water cools the high-temperature refrigerant more fully. Furthermore, the first inlet 11 and the first outlet 12 are staggered, which can reduce the pulsation impact generated by the high-temperature refrigerant and improve the problem of refrigerant flow noise.

[0048] Preferably, the first inlet 11 and the first outlet 12 are as close as possible to the outer wall edge of the first cylinder 1, and in a cross section perpendicular to the axial direction of the first cylinder 1, the connecting line of the projection of the first inlet 11 and the projection of the first outlet 12 passes through the center of the projection of the first cylinder 1. As above, it can ensure that the offset distance between the first inlet 11 and the first outlet 12 is maximized, effectively reduce the pulsation impact generated by the high-temperature refrigerant, and improve the problem of refrigerant flow noise.

[0049] In some embodiments, a second inlet 21 is provided near the top of the second cylinder 2 , and a second outlet 22 is provided near the bottom of the second cylinder 2 . In the circumferential direction of the second cylinder 2 , the second inlet and the second outlet are aligned.

[0050] It should be noted that the second inlet 21 and the second outlet 22 are respectively arranged on the circumferential side wall of the second cylinder 2. In the circumferential direction of the second cylinder 2 refers to the circumferential direction of the second cylinder 2. The second inlet 21 and the second outlet 22 are arranged in alignment, which means that the second inlet 21 and the second outlet 22 are located on opposite sides of the circumferential direction of the second cylinder 2, that is, in a cross section perpendicular to the axial direction of the second cylinder 2, the projection of the second inlet 21 and the projection of the second outlet 22 are respectively located on both sides of the circumferential boundary of the projection of the second cylinder 2, and the connecting line of the projection of the second inlet 21 and the projection of the second outlet 22 passes through the center of the projection of the second cylinder 2.

[0051] Preferably, the second inlet 21 is a horizontal tubular structure, and the second inlet 21 is horizontally formed on the side wall of the second cylinder 2; the second outlet 22 is a horizontal tubular structure, and the second outlet 22 is horizontally formed on the side wall of the second cylinder 2. Of course, the second inlet 21 and the second outlet 22 can also be bent tubular structures with a bending angle, or can be arranged on the second cylinder 2 at a certain inclination angle. The specific arrangement form is selected according to actual needs, and will not be repeated here.

[0052] The second inlet 21 is arranged near the top of the second cylinder 2, and the second outlet 22 is arranged near the bottom of the second cylinder 2, so that the condensed water can flow smoothly under the action of its own gravity. The second inlet 21 and the second outlet 22 are arranged in alignment in the circumferential direction of the second cylinder 2. On the one hand, it can ensure that the low-temperature condensed water entering through the second inlet 21 will not flow out directly through the second outlet 22; on the other hand, it can make the low-temperature condensed water entering through the second inlet 21 cool the high-temperature refrigerant in the circumferential direction of the first cylinder 1, extend the movement path of the condensed water to the bottom of the cooling chamber, and make the condensed water cool the high-temperature refrigerant more fully. Furthermore, the second inlet 21 and the second outlet 22 are arranged in alignment in the circumferential direction of the second cylinder 2, which can reduce the pulsation impact generated by the condensed water and improve the problem of the condensed water flow noise.

[0053] Of course, the positional relationship between the second inlet 21 and the second outlet 22 not only includes being located at the two ends of the diameter on the circumference of the first cylinder 1, but also includes that the second inlet 21 and the second outlet 22 are spaced apart on the circumferential arc of the second cylinder 2, and there is a certain spacing distance between the second inlet 21 and the second outlet 22.

[0054] In certain embodiments of the present application, along the circumference of the first cylinder 1, the first cylinder 1 is divided into a first semicircular portion and a second semicircular portion; the guide plate includes a plurality of first guide plates 3 arranged in the first cylinder 1, and along the axial direction of the heat exchange structure, the plurality of first guide plates 3 are alternately arranged on the inner side wall of the first semicircular portion and the inner side wall of the second semicircular portion.

[0055] Alternating arrangement means that along the axial direction of the heat exchange structure, illustratively, in order from top to bottom, the first first guide plate 3 is arranged in the first semicircle, the second first guide plate 3 is arranged in the second semicircle, the third first guide plate 3 is arranged in the first semicircle, the fourth first guide plate 3 is arranged in the second semicircle... and so on until all the first guide plates 3 are arranged.

[0056] As described above, the high-temperature refrigerant achieves an S-shaped flow path from the first semicircular portion to the second semicircular portion in the first cylinder 1 (the specific flow path of the high-temperature refrigerant is shown in the attached Figure 3), which greatly increases the flow path of the high-temperature refrigerant, increases its contact area with the condensed water and the heat exchange time, thereby effectively improving the cooling effect of the condensed water on the high-temperature refrigerant.

[0057] It should be noted that the radial dimension of the first guide plate 3 is smaller than the diameter of the first cylinder 1. Preferably, the radial dimension of the first guide plate 3 is larger than the radius of the first cylinder 1. As described above, the drainage path of the first guide plate 3 can be ensured, and the flow cross-sectional area of ​​the high-temperature refrigerant on the S-shaped flow path can be controlled within a suitable range, effectively ensuring the cooling effect of the condensed water on the high-temperature refrigerant.

[0058] It should be further explained that, in addition to being arranged in multiple numbers and alternately arranged on the first semicircle and the second semicircle, the first guide plate 3 may also be arranged in other forms. For example, the first guide plate 3 may be a spiral structure, which is spirally wound around the inner wall of the first cylinder 1 to guide the high-temperature refrigerant and increase the flow path of the high-temperature refrigerant.

[0059] In certain embodiments of the present application, the guide plate includes a plurality of second guide plates 4 arranged in the cooling chamber. Along the axial direction of the heat exchange structure, the plurality of second guide plates 4 are alternately arranged on the outer wall of the first cylinder 1 and the inner wall of the second cylinder 2 .

[0060] Alternating arrangement means that, along the axial direction of the heat exchange structure, illustratively, in order from top to bottom, the first second guide plate 4 is arranged on the outer wall of the first cylinder 1, the second second guide plate 4 is arranged on the inner wall of the second cylinder 2, the third second guide plate 4 is arranged on the outer wall of the first cylinder 1, the fourth second guide plate 4 is arranged on the inner wall of the second cylinder 2... and so on until all the second guide plates 4 are arranged.

[0061] As described above, an S-shaped flow path of the condensed water from the outer wall of the first cylinder 1 to the inner wall of the second cylinder 2 in the cooling chamber is realized, which greatly increases the flow path of the condensed water, increases its contact area and heat exchange time with the high-temperature refrigerant, and thus effectively improves the cooling effect of the condensed water on the high-temperature refrigerant.

[0062] It should be noted that, along the radial direction of the second cylinder 2, the annular space of the cooling cavity has a first width; the radial dimension of the second guide plate 4 is smaller than the first width. Preferably, the radial dimension of the second guide plate 4 is larger than 1 / 2 of the first width. As described above, the drainage path of the second guide plate 4 can be ensured, and the flow cross-sectional area of ​​the condensed water on the S-shaped flow path can be controlled within a suitable range, effectively ensuring the cooling effect of the condensed water on the high-temperature refrigerant.

[0063] It should be further explained that, in addition to being arranged in multiple numbers and alternately arranged on the first cylinder 1 and the second cylinder 2, the second guide plate 4 can also be arranged in other forms. For example, the second guide plate 4 can be a spiral structure, which is spirally wound on the outer wall of the first cylinder 1 or spirally wound on the inner wall of the second cylinder 2. Alternatively, the second guide plate 4 is a spiral structure, and multiple guide plates are arranged, and the multiple guide plates are spirally wound on the outer wall of the first cylinder 1 and spirally wound on the inner wall of the second cylinder 2, so as to drain the condensed water and increase the flow path of the condensed water.

[0064] In some embodiments of the present application, the first guide plate 3 includes a first semi-annular plate 31 and a second semi-annular plate 32. The first semi-annular plate 31 is fixed to the inner side wall of the first semicircular portion, and the second semi-annular plate 32 is fixed to the inner side wall of the second semicircular portion.

[0065] The first semi-annular plate 31 and the second semi-annular plate 32 may be semi-annular plates of the same structure or semi-annular plates of different structures. Preferably, the first semi-annular plate 31 and the second semi-annular plate 32 are semi-annular plates of the same structure; the first semi-annular plate 31 and the second semi-annular plate 32 are collectively referred to as semi-annular plates hereinafter, and the semi-annular plate may refer to the first semi-annular plate 31 or the second semi-annular plate 32 without special instructions.

[0066] The outer arc profile of the semi-circular plate is adapted to the shape of the circumferential inner wall of the first cylinder 1. The circumferential angle of the semi-circular plate is ≤180°, preferably, the circumferential angle of the semi-circular plate is 180°. The semi-circular plate can be horizontally arranged on the inner wall of the first cylinder 1, or can be arranged on the inner wall of the first cylinder 1 at a certain angle upward or downward.

[0067] In certain embodiments of the present application, the second guide plate 4 includes a first hollow annular plate 41 and a second hollow annular plate 42, the inner circumference of the first hollow annular plate 41 is fixed to the outer wall of the first cylinder 1, and the outer circumference of the second hollow annular plate 42 is fixed to the inner wall of the second cylinder 2.

[0068] The diameter of the inner circumference of the first hollow annular plate 41 is the same as the outer diameter of the first cylinder 1, or there is an allowable error, so that the first hollow annular plate 41 can be adapted to be installed in the first cylinder 1. The diameter of the outer circumference of the second hollow annular plate 42 is the same as the inner diameter of the second cylinder 2, or there is an allowable error, so that the second hollow annular plate 42 can be adapted to be installed in the second cylinder 2.

[0069] The first hollow annular plate 41 can be horizontally arranged on the outer side wall of the first cylinder 1, or can be arranged on the outer side wall of the first cylinder 1 at a certain angle upward or downward. The second hollow annular plate 42 can be horizontally arranged on the inner side wall of the second cylinder 2, or can be arranged on the inner side wall of the second cylinder 2 at a certain angle upward or downward.

[0070] In certain embodiments of the present application, the first barrel 1 and the second barrel 2 are metal barrels of the same material, and a closed heating chamber is formed by welding, and a heat insulating layer is provided on the outer surface of the second barrel 2. Provide an optional embodiment, the first barrel 1 and the second barrel 2 are both made of aluminum alloy, and the aluminum alloy has good thermal conductivity, which can quickly transfer the cooling temperature of the cooling chamber from the cooling chamber to the inside of the first barrel 1, and the aluminum alloy is light in weight, and the heat exchange structure is light in weight and more portable. Here, the first barrel 1 and the second barrel 2 are connected by welding, and the welding connection method is easy to operate, and the stability and sealing of the connection between the first barrel 1 and the second barrel 2 after connection are good.

[0071] Furthermore, a heat insulation layer is provided on the outer surface of the second cylinder 2, which can prevent the cooling temperature in the cooling chamber from being dissipated to the outside through the second cylinder 2; the type of the heat insulation layer is not limited here, and the heat insulation layer can be glass fiber, asbestos, polyurethane foam material, polystyrene foam, aluminum silicate fiber felt, etc.

[0072] Furthermore, the type of the guide plate is not limited here. The guide plate can be made of the same metal material as the first cylinder 1 and the second cylinder 2, and multiple guide plates made of metal material are welded in the first cylinder 1 and the cooling cavity. The guide plate can also be made of silicone rubber, and multiple guide plates made of silicone rubber can be fixed in the first cylinder 1 and the cooling cavity by fasteners.

[0073] In addition, the embodiment of the present application also provides an air conditioning system; the air conditioning system includes an evaporator, an HVAC drip pipe, a compressor, the heat exchange structure described above, and a condenser. The HVAC drip pipe is connected to the cooling chamber of the heat exchange structure. The evaporator, the compressor, the first cylinder 1 of the heat exchange structure, and the condenser are connected in a head-to-tail cycle in sequence; or, the evaporator, the compressor, the condenser, and the first cylinder 1 of the heat exchange structure are connected in a head-to-tail cycle in sequence.

[0074] It should be noted that HVAC is the abbreviation of Heating, Ventilation and Air Conditioning, which is the heating, ventilation and air conditioning system of the car, that is, the air conditioning system mentioned above. The HVAC drip pipe is used to collect and discharge the condensed water produced by the high-temperature air in the car when it condenses during the evaporator refrigeration process. The compressor absorbs low-temperature and low-pressure refrigerant from the evaporator, compresses it into high-temperature and high-pressure refrigerant and discharges it into the condenser. The refrigerant releases heat in the condenser, and after the pressure is reduced by the throttling element, it enters the evaporator to absorb heat to achieve refrigeration, and then enters the compressor to form a loop.

[0075] The HVAC drip pipe is connected to the second inlet 21 of the cooling chamber of the heat exchange structure. After the condensed water cools the high-temperature refrigerant in the cooling chamber, it is discharged from the second outlet 22 of the cooling chamber.

[0076] In some embodiments, the evaporator, the compressor, the first cylinder 1 of the heat exchange structure, and the condenser are connected in a loop in sequence. Specifically, the refrigerant outlet of the evaporator is connected to the refrigerant inlet of the compressor, the refrigerant outlet of the compressor is connected to the first inlet 11 of the first cylinder 1 of the heat exchange structure, the first outlet 12 of the first cylinder 1 is connected to the refrigerant inlet of the condenser, and the refrigerant outlet of the condenser is connected to the refrigerant inlet of the evaporator. As above, the heat exchange structure is arranged between the compressor and the condenser, that is, the high-temperature refrigerant is first cooled and cooled in the heat exchange structure, and then further cooled and cooled in the condenser. By setting the heat exchange structure, the energy consumption of the condenser can be effectively reduced, which is more energy-saving and environmentally friendly.

[0077] In some embodiments, the evaporator, the compressor, the condenser, and the first cylinder 1 of the heat exchange structure are connected in a head-to-tail loop in sequence. Specifically, the refrigerant outlet of the evaporator is connected to the refrigerant inlet of the compressor, the refrigerant outlet of the compressor is connected to the refrigerant inlet of the condenser, the refrigerant outlet of the condenser is connected to the first inlet 11 of the first cylinder 1 of the heat exchange structure, and the first outlet 12 of the first cylinder 1 is connected to the refrigerant inlet of the evaporator. As above, the heat exchange structure is arranged on the refrigerant outlet side of the condenser, that is, the high-temperature refrigerant is first cooled in the condenser, and then further cooled in the heat exchange structure. By setting the heat exchange structure, the supercooling of the refrigerant can be further reduced, so that the refrigerant is more fully converted into liquid, so that all the refrigerant entering the evaporator is liquid refrigerant, thereby improving the working performance of the air-conditioning system.

[0078] Since the air-conditioning system of the present application has the heat exchange structure described above, the beneficial effects brought about by the heat exchange structure of the air-conditioning system of the present application can be found above and will not be repeated here.

[0079] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0080] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0081] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0082] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used to more clearly explain the technical solutions and cannot be used to limit the scope of protection of the present application.

[0083] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A heat exchange structure, It is characterized in that include: The first cylinder is used to guide the high-temperature refrigerant; The second cylinder is sleeved outside the first cylinder and forms a cooling cavity with the first cylinder, wherein the cooling cavity is used to guide the condensed water generated by the evaporator refrigeration and realize the cooling of the high-temperature refrigerant by the condensed water through the heat conduction of the first cylinder; Wherein, the first cylinder and the cooling cavity are both provided with guide plates for increasing the flow path.

2. The heat exchange structure according to claim 1, It is characterized in that A mounting opening is formed at one end of the second cylinder; The first cylinder includes an extension section extending into the second cylinder. The first cylinder is fixed to the mounting opening. A reserved gap is provided between an outer wall of the extension section and an inner wall of the second cylinder to enclose the cooling cavity.

3. The heat exchange structure according to claim 2, It is characterized in that The top of the first cylinder extends out of the mounting port of the second cylinder, the top of the first cylinder is provided with a first inlet, the bottom of the first cylinder is provided with a first outlet, the first outlet extends out of the second cylinder, and in the axial direction of the first cylinder, the first inlet and the first outlet are staggered.

4. The heat exchange structure according to claim 1, It is characterized in that A second inlet is disposed near the top of the second cylinder, and a second outlet is disposed near the bottom of the second cylinder. In the circumferential direction of the second cylinder, the second inlet is aligned with the second outlet.

5. The heat exchange structure according to claim 3, It is characterized in that In a cross section perpendicular to the axial direction of the first cylinder, a line connecting the projection of the first inlet and the projection of the first outlet passes through the center of the projection of the first cylinder.

6. The heat exchange structure according to claim 4, It is characterized in that In a cross section perpendicular to the axial direction of the second cylinder, a line connecting the projection of the second inlet and the projection of the second outlet passes through the center of the projection of the second cylinder.

7. The heat exchange structure according to claim 1, It is characterized in that Along the circumference of the first cylinder, the first cylinder is divided into a first semicircular portion and a second semicircular portion; The guide plate includes a plurality of first guide plates disposed in the first cylinder, and along the axial direction of the heat exchange structure, the plurality of first guide plates are alternately disposed on the inner side wall of the first semicircular portion and the inner side wall of the second semicircular portion.

8. The heat exchange structure according to claim 1, It is characterized in that The guide plate includes a plurality of second guide plates arranged in the cooling cavity. Along the axial direction of the heat exchange structure, the plurality of second guide plates are alternately arranged on the outer side wall of the first cylinder and the inner side wall of the second cylinder.

9. The heat exchange structure according to claim 7, It is characterized in that The first guide plate includes a first semi-annular plate and a second semi-annular plate. The first semi-annular plate is fixed to the inner side wall of the first semi-circular portion, and the second semi-annular plate is fixed to the inner side wall of the second semi-circular portion.

10. The heat exchange structure according to claim 8, It is characterized in that The second guide plate includes a first hollow annular plate and a second hollow annular plate. The inner circumference of the first hollow annular plate is fixed to the outer side wall of the first cylinder, and the outer circumference of the second hollow annular plate is fixed to the inner side wall of the second cylinder.

11. The heat exchange structure according to any one of claims 1 to 10, It is characterized in that The first cylinder and the second cylinder are metal cylinders made of the same material and are welded to form the closed cooling cavity. A heat insulation layer is provided on the outer surface of the first cylinder.

12. An air conditioning system, It is characterized in that It includes an evaporator, an HVAC drip pipe, a compressor, a heat exchange structure as described in any one of claims 1 to 11, and a condenser; The HVAC drip pipe is connected to the cooling cavity of the heat exchange structure; The evaporator, the compressor, the first cylinder of the heat exchange structure, and the condenser are connected in an end-to-end cycle in sequence; or, the evaporator, the compressor, the condenser, and the first cylinder of the heat exchange structure are connected in an end-to-end cycle in sequence.

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