Heat exchange assembly and compressor having the same

Abstract

The application provides a heat exchange assembly and a compressor with the same. The heat exchange assembly comprises: a heat exchange pipe, which has a first channel, a second channel, an air inlet channel and a heat exchange channel; the first channel is communicated with a suction part of the compressor; the second channel is communicated with a discharge part of the compressor; at least part of the air inlet channel is arranged between the first channel and the second channel; an air inlet end of the air inlet channel is communicated with the suction part of the compressor; an air outlet end of the air inlet channel is communicated with the heat exchange channel; a heat exchange outlet of the heat exchange channel is communicated with the suction part of the compressor; and the heat exchange channel and the second channel have a heat exchange pipe wall therebetween; and a reversing valve, which has a valve port; the reversing valve is arranged in the first channel, the second channel and the air inlet channel to move to an open position of making the valve port communicated with the air inlet channel or a blockage position of making the valve port avoid the air inlet channel under the action of a pressure difference. The technical scheme of the application can solve the technical problem of the compressor suction side refrigerant with liquid in the prior art.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically, to a heat exchange assembly and a compressor having the same. Background Technology

[0002] Currently, refrigeration systems typically include a compressor to compress and drive the refrigerant. During operation, the compressor's suction side draws in low-pressure gaseous refrigerant, which is then compressed within the compressor to form a high-pressure gas for subsequent heat exchange.

[0003] However, during compressor operation, fluctuations in refrigerant suction pressure inevitably occur due to system control instability or other reasons, sometimes resulting in suction pressure falling below the minimum allowable pressure. When the pressure drops below this minimum, the suction temperature decreases, causing the refrigerant entering the suction side to exist in both liquid and gaseous states. The gas carrying liquid refrigerant can impact the compressor blades, and prolonged exposure to this liquid slugging can lead to fatigue damage. Summary of the Invention

[0004] The main objective of this invention is to provide a heat exchange component and a compressor having the same, so as to solve the technical problem of refrigerant carrying liquid on the suction side of the compressor in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a heat exchange assembly is provided, comprising:

[0006] The heat exchange tube has a first channel, a second channel, an inlet channel, and a heat exchange channel. The first channel is connected to the suction section of the compressor, and the second channel is connected to the discharge section of the compressor. At least a portion of the inlet channel is disposed between the first channel and the second channel. The inlet end of the inlet channel is connected to the suction section of the compressor, and the outlet end of the inlet channel is connected to the heat exchange channel. The heat exchange outlet of the heat exchange channel is connected to the suction section of the compressor. A heat exchange tube wall is provided between the heat exchange channel and the second channel.

[0007] A reversing valve has a valve port and is located in a first channel, a second channel, and an intake channel. Under the action of the pressure difference between the first channel and the second channel, the reversing valve moves to an open position that connects the valve port with the intake channel or to a blocked position that avoids the intake channel.

[0008] Furthermore, the heat exchange tubes include:

[0009] An inner tube is provided with a first through hole and a second through hole, both located between the two ends of the inner tube and arranged opposite to each other. The first through hole is connected to the intake end of the intake channel, and the second through hole forms the outlet end of the intake channel. One end of the inner tube is connected to the suction section of the compressor, and the other end of the inner tube is connected to the exhaust section of the compressor. A first channel, at least a portion of the intake channel, and a second channel are sequentially provided between one end and the other end of the inner tube. A reversing valve is movably disposed inside the inner tube so that the valve port connects the first through hole and the second through hole or avoids the first through hole and the second through hole.

[0010] An outer tube is fitted onto an inner tube, with at least a portion of the inner tube spaced apart from the outer tube to form a heat exchange channel, and at least a portion of the inner tube forming a heat exchange tube wall.

[0011] Furthermore, a third through hole is provided on the outer tube, which is positioned opposite to the first through hole; the heat exchange tube also includes:

[0012] The intake pipe passes through the outer pipe and connects to the inner pipe. The intake pipe is inserted at the first and third through holes. The end of the intake pipe away from the first through hole forms the intake end of the intake channel.

[0013] Furthermore, one end of the inner tube and the end of the intake pipe away from the first through hole are both installed on the suction part of the compressor, and the one end of the inner tube and the end of the intake pipe away from the first through hole are spaced apart.

[0014] Furthermore, the arrangement direction along one end of the inner tube to the end of the intake pipe away from the first through hole is the same as the intake direction of the compressor's suction section.

[0015] Furthermore, the heat exchange tubes also include:

[0016] The return pipe has one end installed on the suction section of the compressor and the other end connected to the heat exchange outlet; one end of the return pipe is spaced apart from one end of the inner pipe.

[0017] Furthermore, the heat exchange tubes also include:

[0018] The return pipe has one end installed on the suction section of the compressor and the other end connected to the heat exchange outlet. The end of the intake pipe away from the first through hole is located between one end of the return pipe and one end of the inner pipe.

[0019] Furthermore, the heat exchange tubes also include:

[0020] Heat exchange fins are installed inside the heat exchange channel.

[0021] Furthermore, the heat exchange fins extend along the extension direction of the inner tube, and both the inner and outer tubes are connected to the heat exchange fins so that the heat exchange channel is divided into an inflow channel and an outflow channel through the heat exchange fins. The end of the inflow channel is connected to the end of the outflow channel, the outlet end of the air inlet channel is connected to the inflow channel, and the heat exchange outlet is connected to the outflow channel.

[0022] Furthermore, the inner tube is attached to at least a portion of the inner wall of the outer tube, and the heat exchange fins are connected to both sides of the inner and outer tubes respectively; or,

[0023] The inner tube and the outer tube are spaced apart to form a heat exchange channel. The heat exchange channel is annular. The heat exchange fins include a first fin and a second fin that are spaced apart. The two sides of the first fin are connected to the inner tube and the outer tube, respectively. The two sides of the second fin are connected to the inner tube and the outer tube, respectively, so that the heat exchange channel is divided into an inflow channel and an outflow channel by the first fin and the second fin.

[0024] Furthermore, one end of the outer pipe is connected to one end of the inner pipe or the wall of the inner pipe to seal one end of the outer pipe; the other end of the outer pipe is connected to the other end of the inner pipe or the wall of the inner pipe or the exhaust pipe of the exhaust section to seal the other end of the outer pipe.

[0025] Furthermore, the other end of the outer tube and the other end of the inner tube are both connected to the exhaust pipe of the exhaust section. The exhaust pipe is provided with heat transfer holes, and the other end of the inner tube is positioned opposite to the heat transfer holes so that the high-temperature exhaust at the heat transfer holes enters the second channel through the other end of the inner tube.

[0026] Furthermore, the inner and outer tubes are integrally formed; and / or,

[0027] One end of the inner tube is connected to the intake tube of the intake section; and / or,

[0028] The other end of the inner tube is connected to the exhaust pipe of the exhaust section; and / or,

[0029] The inner tube has a first-bend tube structure, and the outer tube has a second-bend tube structure that is compatible with the inner tube.

[0030] Furthermore, the directional valve includes:

[0031] A valve seat with a valve port is provided on the valve seat, and the valve seat is movably mounted on the inner tube;

[0032] An elastic reset element is installed on the inner tube. The reset end of the elastic reset element is connected to the valve seat so as to reset the valve seat through the elastic reset element.

[0033] According to another aspect of the present invention, a compressor is provided, comprising the heat exchange assembly provided above.

[0034] By applying the technical solution of this invention, by setting a heat exchange channel and a reversing valve inside the heat exchange tube, and by allowing the reversing valve to bypass or block the intake channel through the valve port under the pressure difference between the first and second channels, the intake gas can be introduced into the heat exchange channel and exchange heat with the high-temperature and high-pressure gas when the intake gas is at low pressure and low temperature. This results in an increase in the temperature and pressure of the intake gas, thereby effectively solving the problem of refrigerant liquid carryover on the compressor suction side. Attached Figure Description

[0035] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0036] Figure 1 A schematic diagram of the structure of a heat exchange assembly provided according to an embodiment of the present invention is shown;

[0037] Figure 2 A cross-sectional view of a heat exchange assembly provided according to an embodiment of the present invention is shown;

[0038] Figure 3 A schematic diagram of the reversing valve of the heat exchange assembly provided according to an embodiment of the present invention is shown when the valve is in the open position;

[0039] Figure 4 A schematic diagram of the structure of the reversing valve of the heat exchange assembly provided according to an embodiment of the present invention when it is in the blocked position is shown;

[0040] Figure 5 A schematic diagram of the structure of a heat exchange tube according to an embodiment of the present invention is shown;

[0041] Figure 6 It shows Figure 5 A magnified schematic diagram of the partial structure at point A in the middle;

[0042] Figure 7 A schematic diagram of the inner tube provided according to an embodiment of the present invention is shown;

[0043] Figure 8 A schematic diagram of the structure of an exhaust pipe provided according to an embodiment of the present invention is shown.

[0044] The above figures include the following reference numerals:

[0045] 10. Heat exchange tube; 11. First channel; 12. Second channel; 13. Inlet channel; 14. Heat exchange channel; 141. Inflow channel; 142. Outflow channel; 15. Inner tube; 151. First through hole; 152. Second through hole; 16. Outer tube; 161. Third through hole; 162. Fourth through hole; 17. Inlet pipe; 18. Return pipe;

[0046] 20. Inhalation section; 21. Inhalation tube;

[0047] 30. Exhaust section; 31. Exhaust pipe; 311. Heat transfer hole;

[0048] 40. Reversing valve; 41. Valve port; 42. Valve seat; 43. Resilient return element;

[0049] 50. Heat exchange fin; 51. First fin; 52. Second fin. Detailed Implementation

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0051] Please refer to Figures 1 to 8 In a first embodiment of the present invention, a heat exchange assembly is provided, comprising a heat exchange tube 10 and a reversing valve 40. The heat exchange tube 10 has a first channel 11, a second channel 12, an intake channel 13, and a heat exchange channel 14. The first channel 11 is connected to the intake section 20 of the compressor, and the second channel 12 is connected to the exhaust section 30 of the compressor. At least a portion of the intake channel 13 is disposed between the first channel 11 and the second channel 12. The intake end of the intake channel 13 is connected to the intake section 20 of the compressor, and the outlet end of the intake channel 13 is connected to the heat exchange channel 14. The heat exchange outlet of the heat exchange channel 14 is connected to the intake section 20 of the compressor. A heat exchange tube wall is provided between the heat exchange channel 14 and the second channel 12. The reversing valve 40 has a valve port 41 and is disposed in the first channel 11, the second channel 12 and the intake channel 13. Under the action of the pressure difference between the first channel 11 and the second channel 12, the reversing valve 40 moves to an open position that connects the valve port 41 with the intake channel 13 or to a blocked position that avoids the intake channel 13.

[0052] With this setup, during normal operation, the pressure difference between the first channel 11 and the second channel 12 is small due to the high pressure of the refrigerant gas entering the heat exchange assembly. At this time, the reversing valve 40 does not move, and the intake channel 13 is blocked, allowing the intake gas to enter the compressor normally. However, when the intake pressure of the refrigerant gas fluctuates and falls below the minimum allowable pressure, the gas pressure in the suction section 20 will be lower than the normal operating pressure. The pressure in the first channel 11 will be lower than the pressure in the second channel 12. Because the gas pressure in the second channel 12 is higher, the gas in the second channel 12 will push the reversing valve 40, connecting the valve port 41 with the intake channel 13. The intake gas can then flow through the intake channel 13 to the heat exchange channel 14. Since there is a heat exchange tube wall between the heat exchange channel 14 and the second channel 12, the heat from the high-temperature, high-pressure gas in the second channel 12 will be transferred to the gas in the heat exchange channel 14 through the heat exchange tube wall, thereby increasing the temperature of the gas in the heat exchange channel 14. In this way, when the intake pressure is lower than the minimum allowable pressure, the intake gas can be effectively heated, thereby avoiding the occurrence of refrigerant carryover on the compressor suction side and effectively solving the technical problem of refrigerant carryover on the compressor suction side in the existing technology.

[0053] It should be noted that "the reversing valve 40 is located in the first channel 11, the second channel 12 and the intake channel 13" can be understood as the reversing valve 40 being located at the junction of the first channel 11, the second channel 12 and the intake channel 13, such that a part of the reversing valve 40 is located in the first channel 11, another part of the reversing valve 40 is located in the second channel 12, and yet another part of the reversing valve 40 is located in the intake channel 13.

[0054] Specifically, the heat exchange tube 10 also includes an inner tube 15 and an outer tube 16. The inner tube 15 is provided with a first through hole 151 and a second through hole 152, both of which are located between the two ends of the inner tube 15. The first through hole 151 and the second through hole 152 are arranged opposite to each other. The first through hole 151 is connected to the inlet end of the inlet channel 13, and the second through hole 152 forms the outlet end of the inlet channel 13. One end of the inner tube 15 is connected to the suction section 20 of the compressor, and the other end of the inner tube 15 is connected to the exhaust section 30 of the compressor. A first channel 11, at least a portion of the inlet channel 13, and a second channel 12 are sequentially arranged between one end of the inner tube 15 and the other end of the inner tube 15. A reversing valve 40 is movably disposed inside the inner tube 15, so that the valve port 41 connects the first through hole 151 and the second through hole 152 or avoids the first through hole 151 and the second through hole 152. An outer tube 16 is fitted onto an inner tube 15, with at least a portion of the inner tube 15 spaced apart from the outer tube 16 to form a heat exchange channel 14. At least a portion of the inner tube 15 forms the heat exchange tube wall. This arrangement allows the outer tube 16 and inner tube 15 to cooperate in forming the heat exchange channel 14, facilitating gas flow and heat exchange. Furthermore, the first through-hole 151 and the second through-hole 152 further facilitate gas diversion, enabling more efficient heat exchange.

[0055] Specifically, the outer tube 16 is provided with a third through hole 161, which is opposite to the first through hole 151; the heat exchange tube 10 also includes an air inlet pipe 17. The air inlet pipe 17 passes through the outer tube 16 and connects to the inner tube 15. The air inlet pipe 17 is inserted at the first through hole 151 and the third through hole 161, and the end of the air inlet pipe 17 away from the first through hole 151 forms the air inlet end of the air inlet channel 13. When the reversing valve 40 is in the open position, the channel inside the air inlet pipe 17 is at least partially connected to the inner tube 15 between the first through hole 151 and the second through hole 152 to form the air inlet channel 13. This configuration facilitates the intake gas to be introduced into the heat exchange tube 10 through the intake pipe 17 and the third through hole 161, which further facilitates the intake of the heat exchange component. Furthermore, since the third through hole 161 is positioned opposite to the first through hole 151, it facilitates the installation of the intake pipe 17 and enables accurate delivery of the intake gas.

[0056] In this embodiment, one end of the inner tube 15 and the end of the inlet pipe 17 away from the first through hole 151 are both installed on the suction section 20 of the compressor, with the two ends of the inner tube 15 and the inlet pipe 17 spaced apart. This arrangement allows the intake gas to be introduced into the heat exchange tube 10 for heat exchange when the intake pressure is low, further ensuring that the gas flowing into the compressor is a high-temperature, liquid-free gas, and further preventing liquid carryover of the refrigerant on the compressor suction side.

[0057] Specifically, the arrangement direction of the heat exchange tubes 10 along one end of the inner tube 15 to the end of the inlet pipe 17 away from the first through hole 151 is the same as the intake direction of the compressor's suction section 20. It should be noted that "the arrangement direction of the heat exchange tubes 10 along one end of the inner tube 15 to the end of the inlet pipe 17 away from the first through hole 151 is the same as the intake direction of the suction section 20" can be understood as follows: when the intake direction of the suction section 20 is from top to bottom, one end of the inner tube 15 is also located above the end of the inlet pipe 17 away from the first through hole 151. This arrangement facilitates the flow of intake gas after it is introduced into the heat exchange tubes 10, and because the arrangement direction is the same as the intake direction, it also ensures that the intake gas enters the heat exchange tubes 10 in a timely manner and returns to the compressor along the gas flow direction.

[0058] In this embodiment, the heat exchange tube 10 also includes a return pipe 18. One end of the return pipe 18 is installed on the suction section 20 of the compressor, and the other end of the return pipe 18 is connected to the heat exchange outlet; one end of the return pipe 18 is spaced apart from one end of the inner tube 15. With this arrangement, it is convenient to guide the heat-exchanged gas back into the compressor, and the heated gas can return to the suction section 20 to participate in the compression process. At the same time, the heated gas can be used to further heat the gas entering the suction section 20.

[0059] Specifically, the end of the intake pipe 17 furthest from the first through hole 151 is located between one end of the return pipe 18 and one end of the inner pipe 15. This arrangement avoids interference between the intake pipe 17 and the return pipe 18, facilitates the separation of intake gas and return gas, and provides them with their own independent flow channels, thus facilitating gas flow.

[0060] In this embodiment, the heat exchange tube 10 further includes heat exchange fins 50, which are disposed within the heat exchange channel 14. This arrangement effectively increases the heat exchange area, thereby enabling better heat exchange of the gas within the heat exchange channel 14.

[0061] Specifically, the heat exchange fins 50 extend along the extension direction of the inner tube 15. Both the inner tube 15 and the outer tube 16 are connected to the heat exchange fins 50, thereby dividing the heat exchange channel 14 into an inflow channel 141 and an outflow channel 142. The end of the inflow channel 141 is connected to the end of the outflow channel 142, the outlet end of the air inlet channel 13 is connected to the inflow channel 141, and the heat exchange outlet is connected to the outflow channel 142. With this arrangement, two independent flow channels are provided for the inflow and outflow of gas, which can avoid interference between the inflow and outflow and reduce the heat exchange effect. Furthermore, since the inflow channel 141 and the outflow channel 142 are separated by the heat exchange fins 50, the heat exchange fins 50 can also heat the inflow channel 141 and the outflow channel 142 on both sides at the same time, which can further improve the heat exchange effect.

[0062] In this embodiment, the inner tube 15 can be attached to at least a portion of the inner wall of the outer tube 16, and the two sides of the heat exchange fins 50 are respectively connected to the inner tube 15 and the outer tube 16; or, the inner tube 15 and the outer tube 16 can be spaced apart to form a heat exchange channel 14, the heat exchange channel 14 is annular, and the heat exchange fins 50 include a first fin 51 and a second fin 52 spaced apart, the two sides of the first fin 51 are respectively connected to the inner tube 15 and the outer tube 16, and the two sides of the second fin 52 are respectively connected to the inner tube 15 and the outer tube 16, so that the heat exchange channel 14 is divided into an inflow channel 141 and an outflow channel 142 by the first fin 51 and the second fin 52. When the inner tube 15 and the outer tube 16 are partially fitted together, the space between them forms a heat exchange channel 14. In this case, only one heat exchange fin 50 is needed to divide the heat exchange channel 14 into an inflow channel 141 and an outflow channel 142. This saves on the cost of arranging the heat exchange fin 50 and makes the fixation between the inner tube 15 and the outer tube 16 more stable. When the inner tube 15 and the outer tube 16 are completely spaced apart, the heat exchange channel 14 is an annular channel between them. Preferably, two heat exchange fins 50 are installed inside the annular channel to divide the heat exchange channel into an inflow channel 141 and an outflow channel 142. This maximizes the heat exchange area of ​​the heat exchange fins 50, thereby effectively improving the heat exchange effect.

[0063] Specifically, one end of the outer pipe 16 is connected to one end of the inner pipe 15 or the wall of the inner pipe 15 to seal one end of the outer pipe 16; the other end of the outer pipe 16 is connected to the other end of the inner pipe 15 or the wall of the inner pipe 15 or the exhaust pipe 31 of the exhaust section 30 to seal the other end of the outer pipe 16. This arrangement allows gas to flow through specific gas fluid holes in both the outer pipe 16 and the inner pipe 15, effectively enhancing the gas sealing inside the inner pipe 15 and the outer pipe 16, and further improving the gas heat exchange efficiency.

[0064] Specifically, "one end of the outer pipe 16 is connected to one end of the inner pipe 15 or the wall of the inner pipe 15 to seal one end of the outer pipe 16" can be understood as a first sealing plate being provided between one end of the outer pipe 16 and one end of the inner pipe 15 to seal the space between them. "The other end of the outer pipe 16 is connected to the other end of the inner pipe 15 or the wall of the inner pipe 15 or the exhaust pipe 31 of the exhaust section 30 to seal the other end of the outer pipe 16" can be understood as a second sealing plate being provided between the other end of the outer pipe 16 and the other end of the inner pipe 15, or the other end of the outer pipe 16 being connected to the wall of the inner pipe 15, or the other end of the outer pipe 16 being connected to the exhaust pipe 31 of the exhaust section 30, thereby sealing the space between the other end of the outer pipe 16 and the other end of the inner pipe 15.

[0065] In this embodiment, the other end of the outer tube 16 and the other end of the inner tube 15 are both connected to the exhaust pipe 31 of the exhaust section 30. The exhaust pipe 31 is provided with a heat transfer hole 311. The other end of the inner tube 15 is arranged opposite to the heat transfer hole 311, so that the high-temperature exhaust gas at the heat transfer hole 311 enters the second channel 12 through the other end of the inner tube 15. With this arrangement, it is convenient to introduce high-temperature gas into the inner tube 15, thereby better realizing the operation of introducing high-temperature gas.

[0066] It should be noted that in this embodiment, the other end of the inner tube 15 protrudes beyond the heat exchange fins 50, which facilitates the outer tube 16 to form a loop at the exhaust pipe 31, so that the inflow channel 141 and the outflow channel 142 become a connected loop.

[0067] In this embodiment, the inner tube 15 and the outer tube 16 can be integrally formed, which can reduce the number of steps in the later installation and enhance the efficiency of the heat exchange tube 10 during installation.

[0068] Alternatively, one end of the inner tube 15 can be connected to the suction pipe 21 of the suction section 20, which makes it easier for the reversing valve 40 located inside the inner tube 15 to sense the gas pressure in the suction section 20, thereby enabling the reversing valve 40 to switch positions more effectively.

[0069] Alternatively, the other end of the inner tube 15 can be connected to the exhaust pipe 31 of the exhaust section 30, so that high-temperature gas can be directly introduced from the exhaust section 30 into the inner tube 15, which facilitates the introduction of high-temperature gas and can improve the utilization rate of gas by compressing the high-temperature gas.

[0070] Alternatively, the inner tube 15 can be a first-bend tube structure, and the outer tube 16 can be a second-bend tube structure adapted to the inner tube 15. This arrangement makes it easier to connect the heat exchange tube 10 and the compressor.

[0071] Alternatively, the above-described implementation methods can be satisfied simultaneously, which can further improve the gas flow efficiency within the heat exchange tube 10 and simplify the installation of the heat exchange tube 10.

[0072] Specifically, the directional control valve 40 also includes a valve seat 42 and a resilient reset member 43. The valve seat 42 has a valve port 41 and is movably mounted on the inner tube 15. The resilient reset member 43 is mounted on the inner tube 15, and its reset end is connected to the valve seat 42 to reset the valve seat 42. This configuration allows the directional control valve 40 to move more effectively according to the pressure difference through the cooperation of the valve seat 42 and the resilient reset member 43, thereby better realizing the switching between the open and closed positions of the directional control valve 40. Specifically, the resilient reset member 43 can be an elastic element.

[0073] In this embodiment, the exhaust pipe 31 has a heat transfer hole 311. The heat exchange pipe 10 connects the exhaust pipe 31 with the intake pipe 17 and the return pipe 18. A first exchange port, a second exchange port, and a third exchange port are provided on one side of the intake section 20. The first exchange port, the second exchange port, and the third exchange port are respectively located at one end of the inner pipe 15, the end of the intake pipe 17 away from the first through hole 151, and the end of the return pipe 18. The heat exchange pipe 10 has a double-layered pipe system with an outer pipe 16 and an inner pipe 15, which can be integrally cast. The outer pipe 16 has a third through hole 161 and a fourth through hole 162; the inner pipe 15 has heat exchange fins 50, which separate the inner pipe 15 and the outer pipe 16 into an inflow channel 141 and an outflow channel 142. The inner tube 15 also has an installation space for the reversing valve 40, as well as a first through hole 151 and a second through hole 152, both of which are through holes. The inner tube 15 connects to the heat transfer hole 311 of the exhaust pipe 31 to receive the high-temperature exhaust gas. The length of the reversing valve 40 allows the right side to remain blocked by the second through hole 152 of the inner tube 15 when the valve body of the reversing valve 40 moves to the left to conduct, preventing the high-temperature exhaust gas from communicating with the second through hole 152. Under normal conditions, the reversing valve 40 is closed, and the suction refrigerant does not enter the inflow channel 141, thus preventing heat exchange. When the suction pressure is lower than the minimum allowable pressure, the reversing valve 40 moves to the left in time, allowing the suction refrigerant to enter the inflow channel 141 to exchange heat with the inner tube 15, and then exits through the outflow channel 142, returning to the compressor via the return pipe 18.

[0074] Specifically, one end of the heat exchange tube 10 is welded and fixed to the first exchange port, and the other end is welded and fixed to the exhaust pipe 31 through the outer tube 16. The inner tube 15 of the heat exchange tube 10 is connected to the heat transfer hole 311 of the exhaust pipe 31. High-temperature exhaust gas enters the inner tube 15 of the heat exchange tube 10 through the heat transfer hole 311 and eventually blocks the right side of the reversing valve 40, forming a one-sided connection with the exhaust pipe 31. The reversing valve 40 is installed in the inner tube 15 of the heat exchange tube 10. The left side of the reversing valve 40 contains low-pressure refrigerant, and the right side contains high-temperature exhaust refrigerant. The high-temperature exhaust refrigerant enters the inner tube 15 from the heat transfer hole 311 of the exhaust pipe 31.

[0075] In this embodiment, one end of the intake pipe 17 is welded to the second exchange port, and the other end is inserted into the first through hole 151 of the inner tube 15 of the heat exchange pipe 10, and fixed by welding at the fourth through hole 162, connecting the second exchange port and the inner tube 15. One end of the return pipe 18 is welded to the third exchange port, and the other end is welded to the third through hole 161, connecting the third exchange port and the outer tube 16.

[0076] In a second embodiment of the present invention, a compressor is provided, including the heat exchange component of the first embodiment.

[0077] As can be seen from the above description, the above embodiments of the present invention achieve the following technical effects: by setting a reversing valve 40 in the heat exchange tube 10 that can move under the pressure difference between the first channel 11 and the second channel 12, and when the intake gas pressure is low, the high-pressure gas in the second channel 12 presses the reversing valve 40 to introduce low-temperature gas into the heat exchange channel 14 for heat exchange, the intake gas can be effectively heated, thereby avoiding the occurrence of liquid in the intake gas, and effectively solving the technical problem of liquid in the intake of heat exchange components in the prior art.

[0078] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0079] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0080] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0081] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0082] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0083] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A heat exchange component, characterized in that, include: A heat exchange tube (10) has a first channel (11), a second channel (12), an air inlet channel (13), and a heat exchange channel (14). The first channel (11) is connected to the air intake section (20) of the compressor, and the second channel (12) is connected to the air exhaust section (30) of the compressor. At least a portion of the air inlet channel (13) is disposed between the first channel (11) and the second channel (12). The air inlet end of the air inlet channel (13) is connected to the air intake section (20) of the compressor, and the air outlet end of the air inlet channel (13) is connected to the heat exchange channel (14). The heat exchange outlet of the heat exchange channel (14) is connected to the air intake section (20) of the compressor. A heat exchange tube wall is provided between the heat exchange channel (14) and the second channel (12). A reversing valve (40) having a valve port (41) is disposed in the first channel (11), the second channel (12) and the intake channel (13) so that under the pressure difference between the first channel (11) and the second channel (12), the reversing valve (40) moves to an open position that connects the valve port (41) with the intake channel (13) or to a blocked position that avoids the intake channel (13).

2. The heat exchange assembly according to claim 1, characterized in that, The heat exchange tube (10) includes: An inner tube (15) is provided with a first through hole (151) and a second through hole (152). The first through hole (151) and the second through hole (152) are both located between the two ends of the inner tube (15). The first through hole (151) and the second through hole (152) are arranged opposite to each other. The first through hole (151) is connected to the air inlet end of the air inlet channel (13), and the second through hole (152) forms the air outlet end of the air inlet channel (13). One end of the inner tube (15) is connected to the air intake part (20) of the compressor. The other end of the inner tube (15) is connected to the exhaust section (30) of the compressor. The first channel (11), at least a portion of the intake channel (13), and the second channel (12) are sequentially arranged between one end of the inner tube (15) and the other end of the inner tube (15). The reversing valve (40) is movably disposed in the inner tube (15) so that the valve port (41) connects the first through hole (151) and the second through hole (152) or avoids the first through hole (151) and the second through hole (152). An outer tube (16) is sleeved on the inner tube (15), at least a portion of the inner tube (15) is spaced apart from the outer tube (16) to form the heat exchange channel (14), and at least a portion of the inner tube (15) forms the heat exchange tube wall.

3. The heat exchange component according to claim 2, characterized in that, The outer tube (16) is provided with a third through hole (161), which is disposed opposite to the first through hole (151); the heat exchange tube (10) further includes: An air intake pipe (17) is connected to the inner pipe (15) through the outer pipe (16). The air intake pipe (17) is inserted at the first through hole (151) and the third through hole (161). The end of the air intake pipe (17) away from the first through hole (151) forms the air intake end of the air intake channel (13).

4. The heat exchange assembly according to claim 3, characterized in that, One end of the inner tube (15) and the end of the air inlet pipe (17) away from the first through hole (151) are both installed on the suction part (20) of the compressor, and the one end of the inner tube (15) and the one end of the air inlet pipe (17) away from the first through hole (151) are spaced apart.

5. The heat exchange assembly according to claim 4, characterized in that, The arrangement direction along one end of the inner tube (15) to the end of the air inlet pipe (17) away from the first through hole (151) is the same as the air intake direction of the air intake section (20) of the compressor.

6. The heat exchange assembly according to claim 2, characterized in that, The heat exchange tube (10) also includes: A return pipe (18) is provided, one end of which is installed on the suction section (20) of the compressor, and the other end of which is connected to the heat exchange outlet; one end of the return pipe (18) is spaced apart from one end of the inner pipe (15).

7. The heat exchange assembly according to claim 5, characterized in that, The heat exchange tube (10) also includes: The return pipe (18) is installed at one end on the suction section (20) of the compressor, and the other end of the return pipe (18) is connected to the heat exchange outlet. The end of the inlet pipe (17) away from the first through hole (151) is located between one end of the return pipe (18) and one end of the inner pipe (15).

8. The heat exchange assembly according to claim 2, characterized in that, The heat exchange tube (10) also includes: Heat exchange fins (50) are disposed within the heat exchange channel (14).

9. The heat exchange assembly according to claim 8, characterized in that, The heat exchange fins (50) extend along the extension direction of the inner tube (15). Both the inner tube (15) and the outer tube (16) are connected to the heat exchange fins (50) to divide the heat exchange channel (14) into an inflow channel (141) and an outflow channel (142) through the heat exchange fins (50). The end of the inflow channel (141) is connected to the end of the outflow channel (142). The outlet end of the air inlet channel (13) is connected to the inflow channel (141). The heat exchange outlet is connected to the outflow channel (142).

10. The heat exchange assembly according to claim 9, characterized in that, The inner tube (15) is attached to at least a portion of the inner wall of the outer tube (16), and the two sides of the heat exchange fins (50) are respectively connected to the inner tube (15) and the outer tube (16); or, The inner tube (15) and the outer tube (16) are spaced apart to form the heat exchange channel (14). The heat exchange channel (14) is annular. The heat exchange fins (50) include a first fin (51) and a second fin (52) spaced apart. The two sides of the first fin (51) are connected to the inner tube (15) and the outer tube (16) respectively. The two sides of the second fin (52) are connected to the inner tube (15) and the outer tube (16) respectively, so that the heat exchange channel (14) is divided into the inflow channel (141) and the outflow channel (142) by the first fin (51) and the second fin (52).

11. The heat exchange assembly according to claim 2, characterized in that, One end of the outer tube (16) is connected to one end of the inner tube (15) or the wall of the inner tube (15) to seal one end of the outer tube (16); the other end of the outer tube (16) is connected to the other end of the inner tube (15) or the wall of the inner tube (15) or the exhaust pipe (31) of the exhaust section (30) to seal the other end of the outer tube (16).

12. The heat exchange assembly according to claim 11, characterized in that, The other end of the outer tube (16) and the other end of the inner tube (15) are both connected to the exhaust pipe (31) of the exhaust section (30). The exhaust pipe (31) is provided with a heat transfer hole (311). The other end of the inner tube (15) is arranged opposite to the heat transfer hole (311) so that the high-temperature exhaust at the heat transfer hole (311) enters the second channel (12) through the other end of the inner tube (15).

13. The heat exchange assembly according to any one of claims 2 to 10, characterized in that, The inner tube (15) and the outer tube (16) are integrally formed; and / or, One end of the inner tube (15) is connected to the air intake tube (21) of the air intake section (20); and / or, The other end of the inner tube (15) is connected to the exhaust pipe (31) of the exhaust section (30); and / or, The inner tube (15) is a first bent tube structure, and the outer tube (16) is a second bent tube structure adapted to the inner tube (15).

14. The heat exchange assembly according to any one of claims 2 to 12, characterized in that, The reversing valve (40) includes: Valve seat (42), on which the valve port (41) is provided, and the valve seat (42) is movably disposed on the inner tube (15); An elastic reset member (43) is disposed on the inner tube (15). The reset end of the elastic reset member (43) is connected to the valve seat (42) so as to reset the valve seat (42) through the elastic reset member (43).

15. A compressor, characterized in that, It includes the heat exchange component according to any one of claims 1 to 14.

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