condenser

Abstract

The application relates to a condenser with a length direction and a height direction, characterized in that the condenser comprises a shell with a shell cavity and a partition plate arranged in the shell cavity to separate the shell cavity into a condensing cavity and a separation cavity, wherein at least one opening is arranged on the partition plate to communicate the condensing cavity and the separation cavity, and the opening is arranged at the middle part in the height direction of the condenser.

Description

TECHNICAL FIELD

[0001] The present application relates to a condenser, in particular to a condenser with an oil separator. BACKGROUND

[0002] A conventional refrigeration system has an evaporator, a condenser, a throttling device and a compressor. When the condenser is working, the high-temperature refrigerant gas discharged by the compressor enters the condenser through a refrigerant inlet, exchanges heat with the cooling medium flowing through the heat exchange tubes, condenses on the surface of the heat exchange tubes, and the condensed liquid falls from the upper heat exchange tubes to the bottom and enters the subcooler for subcooling, and then is discharged through a refrigerant outlet. The heat exchange efficiency of the condenser is affected by many factors. In some condensers, an oil separator is integrated to separate the oil in the refrigerant while condensing. SUMMARY

[0003] The present application relates to a condenser, the condenser has a length direction and a height direction, characterized in that the condenser comprises: a shell and a partition plate, the shell has a shell cavity; the partition plate is arranged in the shell cavity and separates the shell cavity into a condensing cavity and a separation cavity, at least one opening is arranged on the partition plate, and the opening communicates the condensing cavity and the separation cavity; wherein the opening is arranged at the middle part in the height direction of the condenser.

[0004] The condenser as described above further comprises: at least one fluid inlet and at least one flow guide plate, the fluid inlet communicates with the separation cavity; the flow guide plate is arranged in the separation cavity, and a flow passage is formed between the flow guide plate and the shell, and the fluid entering from the fluid inlet can enter the opening through the flow passage; wherein at least a part of the flow passage is higher than the opening in the height direction.

[0005] The condenser as described above, at least two heat exchange tube groups are arranged in the condensing cavity, the at least two heat exchange tube groups have a spacing to form a separation part, the opening is aligned with the separation part in the height direction and extends along the length direction.

[0006] The condenser as described above, the flow guide plate comprises a vertical part and a horizontal part, the vertical part extends along the height direction of the shell, the horizontal part is connected with the top of the vertical part and extends along the length direction, and the distal end of the horizontal part and the shell form the flow passage, and the flow passage is located between the fluid inlet and the vertical part in the length direction.

[0007] The condenser as claimed in any one of the preceding claims, further comprising a filtering device disposed in the separation cavity and configured such that fluid flowing out of the flow-through port passes through the filtering device into the opening of the baffle.

[0008] The condenser as claimed in any one of the preceding claims, wherein the filtering device is disposed between the transverse portion and the housing to cover the flow-through port.

[0009] The condenser as claimed in any one of the preceding claims, further comprising a baffle connected to the baffle and extending away from the separation cavity, the baffle being positioned above the opening; in the length direction, both ends of the baffle exceed both ends of the opening.

[0010] The condenser as claimed in any one of the preceding claims, wherein the baffle extends upwardly and obliquely from the baffle, and the baffle has an oblique angle ranging from 10° to 60° with respect to a horizontal plane.

[0011] The condenser as claimed in any one of the preceding claims, wherein, in the height direction, the height of the baffle does not exceed the top end of the vertical portion of the flow guide plate.

[0012] The condenser as claimed in any one of the preceding claims, wherein at least one end of the baffle is provided with an oil return port, and the baffle comprises an oblique section obliquely extending from the oil return port.

[0013] The condenser as claimed in any one of the preceding claims, further comprising a pair of lips respectively extending from the upper edge and the lower edge of the opening toward the condensing cavity, the pair of lips being configured to guide the direction of fluid entering the condensing cavity from the opening.

[0014] The condenser as claimed in any one of the preceding claims, further comprising an end plate arranged side by side with the flow guide plate, and a groove plate disposed below the fluid inlet and above the oil storage layer, both ends of the groove plate being connected to the vertical portion of the flow guide plate and the end plate, respectively.

[0015] The condenser as claimed in any one of the preceding claims, wherein the height of the flow-through port is not less than 1 / 5 of the height of the separation cavity, and the length of the transverse portion of the flow guide plate is not less than 1 / 25 of the length of the separation cavity.

[0016] The condenser as claimed in any one of the preceding claims, further comprising a groove plate, and the at least one flow guide plate comprises a pair of flow guide plates, in the length direction of the condenser, the groove plate is located between the vertical portions of the pair of flow guide plates, in the height direction of the condenser, the groove plate is located between the oil storage layer and the fluid inlet, and the fluid inlet is arranged toward the groove plate.

[0017] In the present application, the oil separator is divided into a separation cavity and a condensation cavity by a partition plate, the separation cavity is used for separating oil in fluid, and the condensation cavity is used for heat exchange. An opening is arranged on the partition plate to communicate the separation cavity and the condensation cavity. The opening is arranged at the middle in the height direction of the condenser, which is beneficial to reasonably utilize the space of the separation cavity and reduce the size of the condenser. In the present application, a pair of flow guide plates are arranged in the separation cavity, and a baffle plate is arranged above the opening, which can guide the flow direction of the fluid, so that the fluid can fully separate the oil in the separation cavity. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1A is a first embodiment of the condenser in the present application;

[0019] Figure 1B is a side view of the condenser in Figure 1A from one direction;

[0020] Figure 1C is a side view of the condenser in Figure 1A from another direction;

[0021] Figure 2 is a schematic view of the condenser in Figure 1B along the A-A line and viewed in the direction of the arrow;

[0022] Figure 3 is a schematic view of the housing in Figure 1B along the B-B line;

[0023] Figure 4 is a sectional view of the condenser in Figure 1A along the B-B line;

[0024] Figure 5 is a sectional view of the condenser in Figure 1C along the C-C line;

[0025] Figure 6A is a schematic view of the flow direction of the fluid in the separation cavity;

[0026] Figure 6B is another schematic view of the flow direction of the fluid in the condenser;

[0027] Figure 7 is a sectional view of a second embodiment of the condenser in the present application;

[0028] Figure 8 is a sectional view of a third embodiment of the condenser in the present application. DETAILED DESCRIPTION

[0029] Various specific embodiments of the present application will be described below with reference to the accompanying drawings, which are incorporated in, and constitute a part of, this specification. It should be understood that, although terms of direction such as "front", "back", "up", "down", "left", "right", "inner", "outer", "top", "bottom", "positive", "negative", "proximal", "distal", "lateral", "longitudinal", and the like are used in this application to describe various example structural parts and elements of the present application, these terms are used only for the convenience of explanation and are determined based on the example orientation shown in the accompanying drawings. Since the embodiments disclosed in the present application can be arranged in different directions, these terms of direction are only for illustration and should not be considered as limitation.

[0030] Figure 1A is a perspective view of the condenser in the present application, Figure 1B is a side view of the condenser in Figure 1A in one direction, Figure 1C is a side view of the condenser in Figure 1A in another direction. As shown in Figures 1A-1C , the condenser 100 has a length direction L, a height direction H, and a width direction W, and the width direction W and the length direction L are both parallel to the horizontal plane. The condenser 100 includes a shell 101 which is substantially cylindrical and is closed at both ends in the length direction by tube plates 102 and 103. The shell 101 is provided with a first refrigerant inlet pipe 121, a second refrigerant inlet pipe 122, an oil outlet 123, and a refrigerant outlet 124. The first refrigerant inlet pipe 121 and the second refrigerant inlet pipe 122 are located at the upper part of the shell 101 and are respectively arranged close to both ends of the shell 101 in the length direction. The oil outlet 123 and the refrigerant outlet 124 are located at the middle part of the lower part of the shell 101.

[0031] It should be noted that, according to different specific arrangements of the condenser, the first refrigerant inlet pipe 121, the second refrigerant inlet pipe 122, the oil outlet 123, and the refrigerant outlet 124 of the condenser can be arranged at different positions.

[0032] Figure 2 is a schematic view of the condenser in Figure 1B cut along the A-A line and viewed in the direction of the arrows, for showing the internal structure of the condenser. As shown in Figure 2As shown, the shell 101, the tube plate 102 and the tube plate 103 of the condenser enclose a shell cavity 210. The condenser comprises a partition plate 230 located in the shell cavity 210 and extending along the length direction and the height direction of the shell 101 to separate the shell cavity 210 into a condensing cavity 202 and a separation cavity 201. The separation cavity 201 is in communication with the first refrigerant inlet pipe 121, the second refrigerant inlet pipe 122 and the oil outlet 123, and the refrigerant outlet 124 is in communication with the condensing cavity 202. The condensing cavity 202 is provided with a plurality of heat exchange tubes, each of which extends along the length direction L of the condenser 100 and is arranged in a row. The plurality of heat exchange tubes comprises a first heat exchange tube group 211 and a second heat exchange tube group 212, the plurality of heat exchange tubes in the first heat exchange tube group 211 are uniformly arranged in a row at a certain density, and the plurality of heat exchange tubes in the second heat exchange tube group 212 are uniformly arranged in a row at a certain density. Along the height direction of the heat exchanger, the first heat exchange tube group 211 and the second heat exchange tube group 212 have a spacing therebetween, thereby forming a separation part 213. No heat exchange tube is arranged in the separation part 213. The condensing cavity 202 is further provided with a subcooler 215, which is arranged below the second heat exchange tube group 212, that is, at the bottom of the condenser 100.

[0033] Figure 3 is Figure 1B a perspective view of the shell in the condenser along the B-B line. In Figure 3 , the shell 101 and the tube plate 102 and the tube plate 103 are cut, and the internal structure of the shell cavity 210 is not cut. Figure 3 the internal structure of the separation cavity 201 is shown.

[0034] As Figure 3As shown, the condenser 100 includes a first drain plate 308 and a second drain plate 309, a first end plate 313 and a second end plate 314, a first slot plate 303 and a second slot plate 304, and a first filter device 391 and a second filter device 392. The first drain plate 308, the first end plate 313, the first slot plate 303 and the first filter device 391 are approximately symmetric to the second drain plate 309, the second end plate 314, the second slot plate 304 and the second filter device 392 with respect to the center of the length direction L of the condenser. The first end plate 313 and the second end plate 314 are respectively located at two ends of the separation chamber 201 and close to the tube plates 102 and 103. The first drain plate 308 and the second drain plate 309 have a spacing between the first end plate 313 and the second end plate 314 respectively. The first slot plate 303 extends along the length direction of the condenser and is arranged between the first end plate 313 and the first drain plate 308, and the first slot plate 303 is used to prevent a large amount of refrigerant gas from passing through. The first slot plate 303 has a small gap between the inner wall of the shell 101 and the first slot plate 303, which can allow oil to pass through. The second slot plate 304 extends along the length direction of the condenser and is arranged between the second end plate 314 and the second drain plate 309, and the second slot plate 304 has a small gap between the inner wall of the shell 101 and the second slot plate 304, which can allow oil to pass through. The first slot plate 303 and the second slot plate 304 are both close to the bottom of the condenser 100.

[0035] Along the length direction L of the condenser, the first end plate 313, the first slot plate 303 and the first drain plate 308 form a first drain space 350, and the second end plate 314, the second slot plate 304 and the second drain plate 309 form a second drain space 360. The first drain plate 308 and the second drain plate 309 form a third drain space 370. The first filter device 391 is arranged between the first drain space 350 and the third drain space 370, and the second filter device 392 is arranged between the second drain space 360 and the third drain space 370. The partition plate 230 is provided with an opening 366 extending along the length direction, which can communicate the separation chamber 201 and the condensation chamber 202. The opening 366 is located at the third drain space 370 in the length direction of the condenser, that is, between the first drain plate 308 and the second drain plate 309.

[0036] The first refrigerant inlet pipe 121 and the second refrigerant inlet pipe 122 respectively communicate with the first drain space 350 and the second drain space 360, and the fluid entering the condenser 100 from the first refrigerant inlet pipe 121 and the second refrigerant inlet pipe 122 first passes through the first drain space 350 and the second drain space 360, then passes through the first filter device 391 and the second filter device 392 to converge in the third drain space 370, and then passes through the opening 366 to enter the condensation chamber 202 for condensation.

[0037] In another embodiment of the present application, the first end plate 313 and the second end plate 314 are no longer provided, and the flow guiding function of the first end plate 313 and the second end plate 314 is completed by the tube plates 102 and 103.

[0038] Figure 4 is Figure 1B is a sectional view of the condenser along the line B-B. Figure 4 is a sectional view along the line B-B and viewed in the direction of the arrows, for illustrating the structure of the separation chamber. As Figure 4 As shown, the first refrigerant inlet pipe 121 includes an outer section 441 and an inner section 442, the outer section 441 is located outside the shell 101, and the inner section 442 extends from the outer section 441 to the inside of the shell 101 and is located within the first flow guiding space 350. The inner section 442 has a fluid inlet 405 located on the side wall of the inner section 442 and faces the first end plate 313. Fluid entering the first refrigerant inlet pipe 121 enters the first flow guiding space 350 from the fluid inlet 405. Similarly, the second refrigerant inlet pipe 122 includes an outer section 443 and an inner section 444, the outer section 443 is located outside the shell 101, and the inner section 444 extends from the outer section 443 to the inside of the shell 101 and is located within the second flow guiding space 360. The inner section 444 has a fluid inlet 406 located on the side wall of the inner section 444 and faces the second end plate 314. Fluid entering the second refrigerant inlet pipe 122 enters the second flow guiding space 360 from the fluid inlet 406.

[0039] The first end plate 313 and the second end plate 314 respectively face the fluid inlets 405 and 406, and fluid can be blocked by the first end plate 313 and the second end plate 314 to change the flow direction.

[0040] The first flow guiding plate 308 includes a vertical section 418 and a horizontal section 419. The vertical section 418 extends along the height direction of the condenser 100, and both ends in the height direction have a spacing with the inner wall of the shell 101. The horizontal section 419 is connected to the top 451 of the vertical section 418 and extends along the length direction L of the condenser 100 towards the first end plate 313, and the horizontal section 419 and the vertical section 418 form a shape similar to "L". The distal end 453 of the horizontal section 419 forms a flow passage 480 with the inner wall of the shell 101, and the flow passage 480 can communicate the first flow guiding space 350 and the third flow guiding space 370. The first filter device 391 is provided between the horizontal section 419 of the first flow guiding plate 308 and the shell 101, and the first filter device 391 covers the flow passage 480, so that the fluid flowing from the first flow guiding space 350 to the third flow guiding space 370 through the flow passage 480 enters the third flow guiding space 370 after being filtered by the first filter device 391.

[0041] Similarly, the second flow guide plate 309 includes a vertical portion 428 and a horizontal portion 429. The vertical portion 428 extends along the height direction of the condenser 100, and both ends in the height direction have a spacing with the inner wall of the shell 101. The horizontal portion 429 is connected to the top 452 of the vertical portion 428 and extends along the length direction L of the condenser 100 towards the second end plate 314, and the horizontal portion 429 and the vertical portion 428 form a similar "L" shape. The distal end 459 of the horizontal portion 429 forms a flow passage 480 with the inner wall of the shell 101, and the second flow passage 490 can communicate the second flow guide space 360 and the third flow guide space 370. The horizontal portion 429 of the second flow guide plate 309 is provided with a second filter device 392 between the shell 101, and the second filter device 392 covers the second flow passage 490, so that the fluid flowing from the second flow guide space 360 to the third flow guide space 370 through the second flow passage 490 is filtered by the second filter device 392.

[0042] In this application, the oil in the refrigerant is accumulated at the bottom of the separation chamber 201 and has a certain liquid level. The oil can be discharged outside the condenser 100 through the oil outlet 123. The bottom 455 of the vertical portion 418 of the first flow guide plate 308 and the bottom of the vertical portion 428 of the second flow guide plate 309 have a spacing with the bottom of the shell 101, so that the oil can flow between the two sides of the first flow guide plate 308 and the second flow guide plate 309 respectively. The two ends of the first groove plate 303 are connected with the first end plate 313 and the vertical portion 418 of the first flow guide plate 308, and are higher than the bottom of the vertical portion 418 in the height direction of the condenser 100, and are higher than the liquid level of the oil. The first groove plate 303 can prevent the fluid in the third flow guide space 370 from entering the first flow guide space 350 through the bottom of the vertical portion 418. The second groove plate 304 is arranged in the same way as the first groove plate 303, but the position is different, and the second groove plate 304 can prevent the fluid in the third flow guide space 370 from entering the second flow guide space 360 through the bottom of the vertical portion 418.

[0043] In this application, the first end plate 313, the first flow guide plate 308, the second end plate 314 and the second flow guide plate 309 respectively guide the flow direction of the fluid in the first flow guide space 350 and the second flow guide space 360, which is beneficial to separate the oil from the gas in the refrigerant fluid.

[0044] In this application, the height of each of the first flow port 480 and the second flow port 490 is not less than 1 / 5 of the height of the separation chamber 201. In one embodiment, the height of each of the first flow port 480 and the second flow port 490 is not less than 1 / 4 of the height of the separation chamber 201. In another embodiment, the height of each of the first flow port 480 and the second flow port 490 is not less than 1 / 3 of the height of the separation chamber 201. The length of the lateral portion 419 of the first drainage plate 308 and the lateral portion 429 of the second drainage plate 309 is not less than 1 / 25 of the length of the separation chamber 201, so that the direction of the fluid flowing towards the first drainage plate 308 can be sufficiently changed. In one embodiment of this application, the length of the lateral portion 419 of the first drainage plate 308 and the lateral portion 429 of the second drainage plate 309 is not less than 1 / 20 of the length of the separation chamber 201. In one embodiment of this application, the length of the lateral portion 419 of the first drainage plate 308 and the lateral portion 429 of the second drainage plate 309 is not less than 1 / 15 of the length of the separation cavity 201.

[0045] like Figure 4 As shown, opening 366 is located approximately at the middle of the height direction of condenser 100, and its height is lower than the top 451 of the vertical portion 418 of the first guide plate 308 and lower than the top 452 of the vertical portion 428 of the second guide plate 309. In one embodiment of this application, the lateral portions 419 of the first guide plate 308 and 429 of the second guide plate 309 extend horizontally, and the heights of the first flow port 480 and the second flow port 490 are higher than the height of opening 366. In another embodiment of this application, the lateral portions 419 of the first guide plate 308 and 429 of the second guide plate 309 extend obliquely downward from their respective vertical portions, and at least a portion of the heights of the first flow port 480 and the second flow port 490 are higher than the height of opening 366. The two ends of opening 366 in the length direction are spaced apart from the vertical portions 418 and 428, respectively.

[0046] The condenser also includes a baffle 425, which is connected to the partition 230 and extends obliquely away from the partition 230. The oblique angle of the baffle 425 relative to the horizontal plane ranges from 10° to 60°. In one embodiment of this application, the oblique angle of the baffle 425 relative to the horizontal plane ranges from 20° to 40°. In the height direction of the condenser 100, the baffle 425 is located above the opening 366, and in the length direction L of the condenser, the length of the baffle 425 is greater than the length of the opening 366, that is, it extends beyond both ends of the opening 366.

[0047] The height of the baffle 425 is lower than the top 451 of the vertical portion 418 of the first flow guide plate 308 and the top 452 of the vertical portion 428 of the second flow guide plate 309. The air flow from the first flow guide space 350 and the second flow guide space 360 to the third flow guide space 370 is first guided by the baffle 425 and then enters the opening 366. In the present application, the horizontal portion 419 of the first flow guide plate 308 and the horizontal portion 429 of the second flow guide plate 309 extend substantially along the horizontal direction, so that the height of the baffle 425 is lower than the height of the first flow passage 480 and the second flow passage 490.

[0048] In one embodiment of the present application, one end of the baffle 425 is spaced apart from the vertical portion 428 to form an oil return port for facilitating the flow of oil on the baffle 425 along the partition 230. The oil return port 435 is located beyond the opening 366 in the length direction of the condenser 100 to prevent the oil on the baffle 425 from entering the opening 366. In another embodiment of the present application, both ends of the baffle 425 are spaced apart from the vertical portion 418 and the vertical portion 428 respectively to form two oil return ports. In yet another embodiment of the present application, the baffle 425 includes an inclined section near the oil return port, which is inclined upward from the oil return port to facilitate the flow of oil to the oil return port. That is, the height of the baffle 425 is lower near the oil return port. In one embodiment of the present application, the condenser has two oil return ports located at both ends of the baffle 425, and the baffle 425 is triangular, trapezoidal or arched with the middle higher and the two ends lower.

[0049] Figure 5 is Figure 1C A sectional view of the condenser in Figure 5 is used to show the structure near the opening 366. As Figure 5The baffle 425 extends upwardly from the partition 230 towards the inner wall of the housing 101 to guide the fluid to flow upwardly. The opening 366 is aligned with the partition 213 between the first and second heat exchanging tube groups 211 and 212, and is located substantially in the middle of the condenser in the height direction. The condenser 100 further comprises a pair of lips 426 and 427 extending from both ends of the opening 366 in the height direction towards the direction of the condensing cavity 202. The lips 426 and 427 have substantially the same length as the opening 366 in the length direction of the condenser. The refrigerant fluid entering the condensing cavity 202 from the opening 366 is aligned with the partition 213, and the fluid passes through the partition 213 before entering the first and second heat exchanging tube groups 211 and 212, so that the fluid can avoid directly flowing towards the heat exchanging tubes and thus avoid generating a large impact force on the heat exchanging tubes. The lips 426 and 427 have a certain length in the width direction to guide the fluid to flow towards the partition 213, so that the fluid entering the condensing cavity 202 can avoid directly entering the space between the heat exchanging tubes and the partition 230, and the impact of the fluid on the heat exchanging tubes near the opening 366 can also be reduced.

[0050] In the design of the condenser, in order to avoid the fluid directly impacting the heat exchanging tubes, a certain space is usually reserved as an inlet space at the fluid inlet, and no heat exchanging tubes are arranged in the inlet space, so that the fluid can pass through the inlet space before entering the heat exchanging tubes, which is beneficial to reduce the impact force on the heat exchanging tubes. The inlet space and the opening are usually arranged at the top of the condenser, so that the fluid flows from top to bottom. In the condenser, there are usually at least two heat exchanging tube groups, and there is a spacing between adjacent heat exchanging tube groups. In the present embodiment, the position of the opening 366 utilizes the partition between the first and second heat exchanging tube groups 211 and 212 as an inlet space, and no separate inlet space needs to be arranged, which is beneficial to reduce the volume of the condenser under the same number of heat exchanging tubes, or to increase the number of heat exchanging tubes under the same volume of the condenser, and to improve the condensing efficiency.

[0051] Figure 6A is a schematic view of the flow direction of the fluid in the separation cavity, Figure 6B is another schematic view of the flow direction of the fluid in the condenser. Figure 6A The structure of the separation cavity shown is Figure 4 the perspective view of the sectional view, Figure 6B The structure of the separation cavity shown is Figure 5 the perspective view of the sectional view. As Figure 6AAs shown, the fluid entering the condenser 100 from the first refrigerant inlet pipe 121 passes through the outer section 441 and the inner section 442 of the first refrigerant inlet pipe 121 in sequence, wherein the bottom of the inner section 442 is sealed, the fluid flows from the fluid inlet 405 of the side wall of the inner section 442 to the first end plate 313, and then turns back at the first end plate 313, guided by the inner wall of the shell 101 and the first groove plate 303, flows to the vertical section 418 of the first flow guide plate 308; then the fluid turns back from the vertical section 418, flows towards the flow-through opening 480, and enters the third flow guide space 370 through the first filter device 391. In the separation chamber 201, the fluid is guided by the fluid inlet 405, the first end plate 313, the first groove plate 303, and the first flow guide plate 308, and flows in the first flow-through space, and the flow direction changes constantly, which is conducive to separating the oil in the fluid, and the separated oil flows from the gap between the first groove plate 303 and the shell to the oil storage layer of the condenser. In the third flow guide space 370, the fluid is guided by the baffle 425 and flows obliquely upwards until it turns back at the inner wall of the shell 101 and flows towards the opening 366. In the third flow guide space 370, the flow direction of the fluid changes constantly, which is conducive to separating the oil in the fluid, and the separated oil flows from the oil return port at one end of the baffle 425 and the inner wall of the shell 101 to the oil storage layer. The fluid entering the condensing chamber 202 from the opening 366 is guided by the lips 426 and 427 into the partition 213, and the fluid in the partition 213 flows to the first heat exchange pipe group 211 and the second heat exchange pipe group 212 respectively for heat exchange, and the refrigerant after heat exchange flows out from the refrigerant outlet 124. The oil in the oil storage layer can flow out through the oil outlet 123.

[0052] The flow of the fluid entering the condenser 100 from the second refrigerant inlet pipe 122 is similar to that of the fluid entering the condenser 100 from the first refrigerant inlet pipe 121, and will not be described again. In the third flow guide space 370, the fluid from the first refrigerant inlet pipe 121 and the fluid from the second refrigerant inlet pipe 122 are mixed, which can further change the direction of the fluid.

[0053] The arrows shown in FIGS. 6-7 generally show the flow direction of the fluid, which is only the general flow direction of the fluid. In the flow, the flow direction of the fluid is complex, and the arrows are only a simple explanation to help understanding, and do not represent the actual flow direction of all the fluid.

[0054] In the present application, the opening 366 on the partition plate 230 separating the separation chamber 201 and the condensation chamber 202 is arranged at the middle in the condenser height direction, which is beneficial for reasonable use of the space of the separation chamber, and makes the arrangement of the heat exchange tube group more compact. When a certain number of heat exchange tubes are arranged in the separation chamber, the condenser in the present application does not need to additionally reserve space at the position aligned with the opening, thereby reducing the size of the separation chamber, that is, reducing the size of the condenser. The separation chamber 201 in the present application can guide the flow direction of the fluid by arranging the first and second flow guide plates 308 and 309 and the baffle 425, so that the fluid can fully separate the oil from the refrigerant in the separation chamber.

[0055] Figure 7 is a cross-sectional view of a second embodiment of the condenser of the present application, and the cross-sectional position is the same as that shown in Figure 4 . Figure 7 is similar to the embodiment shown in Figure 4 , except that the number of refrigerant inlet pipes and the number of openings, baffles and groove plates are different from those of the embodiment shown in Figure 4 . As shown in Figure 7 , the condenser 700 includes one refrigerant inlet pipe 721, which is located at about the middle in the condenser length direction L. The refrigerant inlet pipe 721 includes an inner section 442 located inside the condenser 700, and the distal end of the inner section 442 has a fluid inlet 705 arranged towards the bottom of the condenser 700.

[0056] The condenser 700 includes a first flow guide plate 708 and a second flow guide plate 709, which are located on both sides of the fluid inlet 705 in the length direction of the condenser 700. The first flow guide plate 708 includes a vertical portion 718 and a horizontal portion 719, and the second flow guide plate 709 includes a vertical portion 728 and a horizontal portion 729. The horizontal portions 719 and 729 extend away from each other from the top end of the corresponding vertical portion in the length direction, respectively. The distal end of each of the horizontal portions 719 and 729 forms a flow passage 780 and 790 with the shell, respectively. The horizontal portions 719 and 729 are provided with a first filter device 791 and a second filter device 792 between the shell.

[0057] The groove plate 704 is arranged between the vertical portions 718 and 728 of the first and second flow guide plates 708 and 709, and is located between the oil storage layer and the fluid inlet 705 in the height direction of the condenser. The first flow guide plate 708 and the first end plate 713 are provided with an opening 766 and a baffle 725. The opening 766 and the baffle 725 are arranged in a similar manner to the opening and baffle of the embodiment in Figure 4 , and the upper length in the condenser length direction is less than that of the embodiment in Figure 4In the embodiment described above, an opening 767 and a baffle 726 are provided between the second drainage plate 709 and the second end plate 714. The positions of the opening 766 and the baffle 725 are arranged in accordance with... Figure 4 The opening and baffle arrangement in the embodiment are similar, and the length in the longitudinal direction of the condenser is less than Figure 4 Examples are shown in the text.

[0058] exist Figure 7 In the embodiment shown, fluid flows from the fluid inlet 705 of the refrigerant inlet pipe 721 to the trough plate 704, and changes direction at the trough plate 704, splitting into two paths that flow toward the first filter device 791 and the second filter device 792, respectively. After passing through the first filter device 791 and the second filter device 792, the two fluid paths are guided by baffles 725 and 726, respectively, and then enter the condensing chamber through openings 766 and 767.

[0059] exist Figure 7 In the illustrated embodiment, there are two openings, positioned at the center of the condenser's height and aligned with the space between the two heat exchange tube groups in the separation chamber. Figure 4 The embodiments shown are similar. Figure 7 The illustrated embodiment facilitates the rational use of the separation chamber space, resulting in a more rational distribution of heat exchange tubes within the separation chamber, reducing the size of the separation chamber, and consequently reducing the size of the condenser.

[0060] Figure 8 This is a cross-sectional schematic diagram of the third embodiment of the condenser of this application, and its sectioning position is... Figure 4 The cut positions shown are the same. Figure 8 and Figure 7 The illustrated embodiments are similar, except that the lateral portions of the first drain plate 808 and the second drain plate 809 extend in different directions. For example... Figure 8 As shown, the first drainage plate 808 includes a vertical portion 818 and a horizontal portion 819, and the second drainage plate 809 includes a vertical portion 828 and a horizontal portion 829. The horizontal portions 819 and 829 extend from the top of their respective vertical portions along their length and toward each other. A first filter device 891 is disposed between the horizontal portion 819 and the housing 801, and a second filter device 892 is disposed between the horizontal portion 829 and the housing 801. Figure 8 In the illustrated embodiment, after the fluid enters the condenser from the fluid inlet 805, it changes direction via the slot plate 804, the first guide plate 808, and the second guide plate 809, and then flows towards the spaces where the openings 866 and 867 are located. Figure 7Compared to the illustrated embodiment, since the transverse portions 719 and 729 extend toward each other, the flow direction of the fluid may be altered by the transverse portions 719 and 729 between the fluid entering the first filter device 891 and the second filter device 892, which facilitates the separation of oil from the fluid. However, compared to... Figure 7 Compared to the embodiment shown, a larger spacing is required between the first drainage plate 808 and the second drainage plate 809, that is... Figure 8 The condenser in the middle is longer. Figure 8 The embodiment of the condenser shown in the figure can achieve the same Figure 4 The embodiment of the condenser shown has similar technical effects.

[0061] Although this disclosure has been described in conjunction with examples of the embodiments outlined above, various alternatives, modifications, variations, improvements, and / or substantially equivalents, whether known or currently or soon to be foreseen, will likely be apparent to those skilled in the art. Furthermore, the technical effects and / or technical problems described herein are exemplary and not limiting; therefore, the disclosures herein may be used to solve other technical problems and achieve other technical effects. Accordingly, the examples of embodiments of this disclosure as set forth above are intended to be illustrative and not restrictive. Various changes may be made without departing from the spirit or scope of this disclosure. Therefore, this disclosure is intended to include all known or previously developed alternatives, modifications, variations, improvements, and / or substantially equivalents.

Claims

1. A condenser having a length direction and a height direction, characterized in that... The condenser includes: The housing has a housing cavity; A partition is disposed in the housing cavity and divides the housing cavity into a condensation cavity and a separation cavity. The partition has at least one opening that connects the condensation cavity and the separation cavity. The opening is located at the middle of the height direction of the condenser.

2. The condenser as described in claim 1, characterized in that... Also includes: At least one fluid inlet, the fluid inlet being in communication with the separation chamber; At least one diversion plate is disposed in the separation chamber, and a flow port is formed between the diversion plate and the housing, so that fluid entering from the fluid inlet can pass through the flow port into the opening; In the height direction, at least a portion of the flow port is higher than the opening.

3. The condenser as described in claim 1, characterized in that: The condensation chamber is provided with at least two heat exchange tube groups, and there is a gap between the at least two heat exchange tube groups to form a partition. The opening is aligned with the partition in the height direction and extends along the length direction.

4. The condenser as described in claim 2, characterized in that: The drainage plate includes a vertical portion and a horizontal portion. The vertical portion extends along the height direction of the housing. The horizontal portion is connected to the top of the vertical portion and extends along the length direction. The flow port is formed between the distal end of the horizontal portion and the housing. In the length direction, the flow port is located between the fluid inlet and the vertical portion.

5. The condenser as described in claim 4, characterized in that: The condenser also includes a filter device disposed in the separation chamber and configured such that fluid flowing out of the flow port passes through the filter device and then enters the opening of the partition.

6. The condenser as described in claim 5, characterized in that: The filter device is disposed between the transverse portion and the housing to cover the flow port.

7. The condenser as described in claim 4, characterized in that: The condenser also includes a baffle connected to the partition and extending in a direction away from the separation chamber, the baffle being located above the opening; in the length direction, both ends of the baffle extend beyond both ends of the opening.

8. The condenser as described in claim 7, characterized in that: The baffle extends upward at an angle from the partition, and the angle of inclination of the baffle relative to the horizontal plane ranges from 10° to 60°.

9. The condenser as described in claim 8, characterized in that: In the height direction, the height of the baffle does not exceed the top of the vertical portion of the diversion plate.

10. The condenser as claimed in claim 7, characterized in that: The baffle is provided with an oil return port at at least one end, and the baffle includes an inclined section extending obliquely from the oil return port.

11. The condenser as claimed in claim 7, characterized in that: The condenser also includes a pair of lips that extend from the upper and lower edges of the opening toward the condensation chamber, respectively, and the pair of lips are used to guide the direction of fluid entering the condensation chamber from the opening.

12. The condenser as claimed in claim 4, characterized in that: The condenser also includes an end plate and a slotted plate. The end plate is arranged side by side with the guide plate. The fluid inlet faces the end plate. The slotted plate is located below the fluid inlet and above the oil storage layer. The two ends of the slotted plate are respectively connected to the vertical part of the guide plate and the end plate.

13. The condenser as described in claim 4, characterized in that: The height of the flow port is not less than 1 / 5 of the height of the separation chamber, and the length of the transverse portion of the drainage plate is not less than 1 / 25 of the length of the separation chamber.

14. The condenser as claimed in claim 4, characterized in that: The condenser includes a slotted plate, and the at least one guide plate includes a pair of guide plates. In the length direction of the condenser, the slotted plate is located between the vertical portions of the pair of guide plates. In the height direction of the condenser, the slotted plate is located between the oil reservoir and the fluid inlet, and the fluid inlet is arranged toward the slotted plate.

Images