Condenser

Abstract

This application provides a condenser comprising: a shell, a first heat exchange tube group, a second heat exchange tube group, and a third heat exchange tube group; a pair of first baffles, a second baffle, and a third baffle; the second and third heat exchange tube groups are disposed on both sides of the first heat exchange tube group; each of the pair of first baffles is adjacent to both sides of the first heat exchange tube group; the second baffle is adjacent to the side of the second heat exchange tube group closest to the first heat exchange tube group; and the third baffle is adjacent to the side of the third heat exchange tube group closest to the first heat exchange tube group. The pair of first, second, and third baffles are configured such that the first heat exchange tube group receives refrigerant from a refrigerant inlet, and the second and third heat exchange tube groups receive refrigerant from the first heat exchange tube group through a transverse fluid channel, and a first vertical fluid channel and a second vertical fluid channel. The condenser of this application has a high heat exchange efficiency.

Description

Technical Field

[0001] This application relates to a condenser, and more particularly to a condenser with high heat exchange efficiency. Prior Technology

[0002] Traditional refrigeration systems consist of an evaporator, condenser, throttling device, and compressor. Shell-and-tube condensers are widely used in the refrigeration and air conditioning industry, especially in large steam compressor units. When a shell-and-tube condenser is working, the high-temperature refrigerant gas discharged from the compressor enters the condenser through the refrigerant inlet, exchanges heat with the cooling medium flowing through the heat exchange tubes, and condenses on the surface of the heat exchange tubes. The condensate falls layer by layer from the upper heat exchange tubes to the bottom and enters the subcooler for subcooling before being discharged from the refrigerant outlet. The heat exchange efficiency of the condenser is affected by many factors. Summary of the Invention

[0003] This application provides a condenser with high heat exchange efficiency.

[0004] According to the first category of this application, the condenser includes: a shell having a cavity having a length direction, a width direction, and a height direction, and a refrigerant inlet and a refrigerant outlet on the shell; a first heat exchange tube group, a second heat exchange tube group, and a third heat exchange tube group, wherein the second heat exchange tube group and the third heat exchange tube group are disposed on both sides of the first heat exchange tube group in the width direction of the cavity, and a transverse fluid channel is provided below the first heat exchange tube group; a pair of first baffles, wherein each of the pair of first baffles is adjacent to both sides of the first heat exchange tube group in the width direction of the cavity, the upper end of each of the pair of first baffles extends above the first heat exchange tube group and connects to the shell, and the lower end of each of the pair of first baffles extends to the lower end of the first heat exchange tube group; and a second baffle, wherein the second baffle is adjacent to the side of the second heat exchange tube group near the first heat exchange tube group in the width direction of the cavity, and the second baffle is adjacent to one of the first baffles adjacent to the second heat exchange tube group. A first vertical fluid channel is formed between the plates, which communicates with the transverse fluid channel. A second baffle extends downward so that its lower portion closes the transverse fluid channel in the height direction of the cavity. A third baffle, in the width direction of the cavity, is adjacent to the side of the third heat exchange tube assembly near the first heat exchange tube assembly. A second vertical fluid channel is formed between the third baffle and one of the first baffles adjacent to the third heat exchange tube assembly, which communicates with the transverse fluid channel. The third baffle extends downward so that its lower portion closes the transverse fluid channel in the height direction of the cavity. The first baffle, the second baffle, and the third baffle are configured such that the first heat exchange tube assembly receives refrigerant from the refrigerant inlet, and that the second and third heat exchange tube assemblies receive refrigerant from the first heat exchange tube assembly through the transverse fluid channel, the first vertical fluid channel, and the second vertical fluid channel.

[0005] According to the condenser described above, when the condenser is in operation, the lower part of the second baffle and the lower part of the third baffle are at least partially immersed in the refrigerant liquid.

[0006] According to the condenser described above, a first receiving space is formed between the pair of first baffles, the first heat exchange tube group is disposed in the first receiving space, the first receiving space has a first receiving space inlet and a first receiving space outlet, the first receiving space inlet is connected to the refrigerant inlet, and the first receiving space outlet is connected to the transverse fluid channel.

[0007] According to the condenser described above, a second receiving space is formed between the second baffle and the shell, the second heat exchange tube assembly is disposed in the second receiving space, the second receiving space has a second receiving space inlet, and the second receiving space inlet is connected to the first vertical fluid channel; a third receiving space is formed between the third baffle and the shell, the third heat exchange tube assembly is disposed in the third receiving space, the third receiving space has a third channel inlet, and the second receiving space inlet is connected to the second vertical fluid channel.

[0008] According to the condenser described above, each of the first baffles includes a main body section and a guide section. The main body section extends along the height direction of the cavity, and the top of the main body section is flush with or exceeds the top of the first heat exchange tube assembly. The guide section extends upward from the top of the main body section and obliquely away from the first heat exchange tube assembly to connect with the housing. The guide section is located above the first vertical fluid channel or the second vertical fluid channel.

[0009] According to the condenser, the condenser also includes: a central guide plate with vent holes to allow gas to flow through, the central guide plate being disposed in the first heat exchange tube group, the second heat exchange tube group, or the third heat exchange tube group, the central guide plate including an inclined section extending upwardly from at least one of the pair of first baffles, the second baffle, the third baffle, or the housing to guide liquid refrigerant to flow along one of the pair of first baffles, the second baffle, the third baffle, or the housing.

[0010] According to the condenser described above, the vent is a long strip extending along the inclined direction of the inclined section.

[0011] According to the second category of this application, a condenser is provided, comprising: a shell having a cavity having a length direction, a width direction, and a height direction, and a refrigerant inlet and a refrigerant outlet on the shell; a first heat exchange tube assembly and a second heat exchange tube assembly, the first heat exchange tube assembly being disposed on one side of the second heat exchange tube assembly, and a transverse fluid channel being provided below the first heat exchange tube assembly; a first baffle and a second baffle, the first baffle being adjacent to the first heat exchange tube assembly and the second baffle being adjacent to the second heat exchange tube assembly, and a vertical fluid channel being formed between the first baffle and the second baffle, the vertical fluid channel being connected to the transverse fluid channel. The channels are connected. The upper end of the first baffle extends above the first heat exchange tube assembly and connects to the housing. The lower end of the first baffle extends to the lower end of the first heat exchange tube assembly. The upper end of the second baffle extends to the upper end of the second heat exchange tube assembly. The second baffle extends downward so that the lower end of the second baffle closes the transverse fluid channel in the height direction of the cavity. The first baffle and the second baffle are configured such that the first heat exchange tube assembly receives refrigerant from the refrigerant inlet, and the second heat exchange tube assembly receives refrigerant from the first heat exchange tube assembly through the transverse fluid channel and the vertical fluid channel.

[0012] As described above, when the condenser is in operation, the lower end of the second baffle is at least partially immersed in the refrigerant liquid.

[0013] As described above, in the condenser, a first receiving space is formed between the first baffle and the housing, the first heat exchange tube assembly is disposed in the first receiving space, the first receiving space has a first receiving space inlet and a first receiving space outlet, the first receiving space inlet is connected to the refrigerant inlet, and the first receiving space outlet is connected to the transverse fluid channel.

[0014] As described above, in the condenser, a second receiving space is formed between the second baffle and the housing, the second heat exchange tube assembly is disposed in the second receiving space, the second receiving space has a second receiving space inlet, and the second receiving space inlet is connected to the vertical fluid channel.

[0015] As described above, each of the first baffles includes a main body section and a guide section. The main body section extends along the height direction of the cavity, and the top of the main body section is flush with or exceeds the top of the first heat exchange tube assembly. The guide section extends upward from the top of the main body section and obliquely away from the first heat exchange tube assembly and is connected to the housing. The guide section is located above the vertical fluid channel.

[0016] According to the third category of this application, a condenser is provided, comprising: a shell having a cavity having a length direction, a width direction, and a height direction, the shell having a refrigerant inlet and a refrigerant outlet; a first heat exchange tube assembly and a second heat exchange tube assembly, wherein in the height direction of the cavity, the first heat exchange tube assembly is located above the second heat exchange tube assembly, the first heat exchange tube assembly is adjacent to the shell on both sides in the width direction of the cavity, and at least one side of the second heat exchange tube assembly is spaced apart from the shell by a certain distance; at least one baffle is disposed near at least one side of the second heat exchange tube assembly that is spaced apart from the shell, in the height direction of the cavity, the upper end of the at least one baffle is not higher than the second heat exchange tube assembly, and a fluid space is formed between the side of the at least one baffle and the shell.

[0017] As described above, the condenser has at least one baffle with a connecting channel at its lower part to allow liquid refrigerant to pass through.

[0018] The condenser described above also includes: a flow guide plate disposed between the first heat exchange tube group and the second heat exchange tube group, and covering the second heat exchange tube group, to guide the liquid refrigerant to flow into the fluid space, and the flow guide plate is provided with vent holes to allow gaseous refrigerant to pass through.

[0019] As described above, the condenser includes an inclined section that extends upward from the first baffle toward the centerline of the second heat exchange tube assembly in the width direction of the cavity.

[0020] As described above, the vent hole of the condenser is a long strip extending along the inclined direction of the inclined section.

[0021] In this application, the baffle increases the flow rate of gaseous refrigerant in the condenser, which helps to break through the liquid film on the heat exchange tubes and makes it easier for the gaseous refrigerant to diffuse to the heat exchange tubes in the lower part of the condenser, thereby improving the condensation heat exchange efficiency. Simple Explanation of the Diagram

[0022] Figure 1 is a schematic block diagram of the refrigeration system 100; Figure 2A is a perspective view of the first embodiment of the condenser 120 in Figure 1; Figure 2B is a schematic axial cross-sectional view of condenser 120 in Figure 2A; Figure 3A is a schematic radial section of the condenser 120 in Figure 2, cut along line AA. Figure 3B is a schematic diagram of the refrigerant flow direction in condenser 120 of Figure 3A; Figure 4 is a radial cross-sectional view of the second embodiment of the condenser in this application; Figure 5 is a radial cross-sectional view of the third embodiment of the condenser in this application; Figure 6 is a radial cross-sectional view of the fourth embodiment of the condenser in this application. Implementation

[0023] Various specific embodiments of this application will now be described with reference to the accompanying drawings, which form part of this specification. It should be understood that although terms indicating direction, such as "front," "rear," "up," "down," "left," "right," "inner," "outer," "top," "bottom," "positive," "negative," "proximal," "farthest," "lateral," and "longitudinal," are used herein to describe various example structural parts and elements of this application, their use is solely for illustrative purposes and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this application can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered limiting.

[0024] The ordinal numbers such as "first" and "second" used in this application are merely for distinction and identification and have no other meaning. Unless otherwise specified, they do not indicate a specific order or a specific relationship. For example, the term "first component" does not imply the existence of "second component," nor does the term "second component" imply the existence of "first component."

[0025] Figure 1 is a schematic block diagram of the refrigeration system 100. As shown in Figure 1, the refrigeration system 100 includes a compressor 110, a condenser 120, a throttling device 140, and an evaporator 130. These components are connected by pipes to form a refrigerant circulation loop, which is filled with refrigerant. As indicated by the arrows in Figure 1, the refrigerant flows sequentially through the compressor 110, condenser 120, throttling device 140, and evaporator 130 before re-entering the compressor 110. During the refrigeration process, the high-temperature, high-pressure gaseous refrigerant discharged from the compressor 110 exchanges heat with the ambient medium in the condenser 120, releasing heat and condensing into liquid refrigerant. The throttling device 140 throttles the high-pressure liquid refrigerant from the condenser 120, reducing its pressure. The low-pressure refrigerant exchanges heat with the object being cooled in the evaporator 130, absorbing heat from the object and vaporizing. The refrigerant vapor produced by vaporization is drawn into the compressor 110, compressed, and discharged at high pressure, forming a cycle.

[0026] Figure 2A is a perspective view of the first embodiment of the condenser 120 in Figure 1, and Figure 2B is a schematic axial cross-sectional view of the condenser 120 in Figure 2A. Referring to the position shown in Figure 2A, the condenser 120 has a height direction H, a length direction L, and a width direction W. The height direction, length direction, and width direction of the cavity 205 are consistent with the direction of the condenser 120. As shown in Figures 2A and 2B, this is a condenser with a two-stage cooling medium. The condenser 120 has a shell 201, which includes a cylinder 204, a left tube sheet 216, a right tube sheet 214, a rear water tank 226, and a front water tank 228. The left and right ends of the cylinder 204 are closed by the left tube sheet 216 and the right tube sheet 214, respectively, to form the cavity 205. The rear water tank 226 is connected to the left tube sheet 216 and forms a chamber 208 between them. The front water tank 228 is connected to the right tube sheet 214, forming a chamber 209 between them. A transverse partition plate 210 extending laterally from the right tube sheet 214 to the front water tank 228 is provided in the chamber 209, thus dividing the chamber 209 into an outlet chamber 234 and an inlet chamber 232. The front water tank 228 is provided with a medium inlet 222 and a medium outlet 223. The medium inlet 222 communicates with the inlet chamber 232, and the medium outlet 223 communicates with the outlet chamber 234.

[0027] A heat exchange tube bundle is formed by multiple heat exchange tubes arranged sequentially in the cavity 205. Each heat exchange tube in the heat exchange tube bundle extends along the length L of the cavity 205. The heat exchange tubes in the condenser 120 include an upper tube bundle 242 and a lower tube bundle 244 located below the upper tube bundle 242. The upper tube bundle 242 and the lower tube bundle 244 are horizontally placed in the cavity 205. Each heat exchange tube in the upper tube bundle 242 has one end in fluid communication with the chamber 208 and the other end in fluid communication with the outlet cavity 234; each heat exchange tube in the lower tube bundle 244 has one end in fluid communication with the chamber 208 and the other end in fluid communication with the inlet cavity 232, thereby allowing the cooling medium to flow sequentially through the inlet cavity 232, the lower tube bundle 244, the chamber 208, the upper tube bundle 242, and the outlet cavity 234 after passing through the medium inlet 222, and then exiting the condenser 120 through the medium outlet 223. A fluid channel is formed within each heat exchange tube in the heat exchange tube bundle to circulate the cooling medium. A refrigerant channel is formed between each heat exchange tube and an adjacent heat exchange tube to circulate the refrigerant. The medium in the fluid channel and the refrigerant in the refrigerant channel exchange heat through the tube walls of the heat exchange tubes. In other embodiments of this application, the cooling medium can be configured as a single-pass or multi-pass system.

[0028] The cylinder 204 is provided with a refrigerant inlet 211 and a refrigerant outlet 212. The refrigerant inlet 211 is located at the upper part of the condenser 120 in the height direction, and the refrigerant outlet 212 is located at the lower part of the condenser 120 in the height direction. The gaseous refrigerant in the refrigeration system 100 enters the refrigerant channel between the heat exchange tubes of the condenser 120 through the refrigerant inlet 211, and becomes liquid refrigerant after exchanging heat with the cooling medium in the heat exchange tubes, and is discharged from the refrigerant outlet 212.

[0029] The condenser 120 also includes a baffle plate 224. As an example, the baffle plate 224 is generally flat and extends along the length and width of the cavity 205. The baffle plate 224 is positioned between the refrigerant inlet 211 and the upper tube bundle 242, and has a certain distance between it and the inner wall of the cylinder 204 at the refrigerant inlet 211. The area of ​​the baffle plate 224 is larger than the area of ​​the refrigerant inlet 211. When gaseous refrigerant enters the cylinder 204 at a high velocity from the refrigerant inlet 211, the baffle plate 224 prevents the gaseous refrigerant from directly impacting the heat exchange tubes. Furthermore, the baffle plate 224 can guide the refrigerant flow along the length and width of the cavity 205, so that the refrigerant entering the cavity 205 from the refrigerant inlet 211 can flow evenly to the heat exchange tube bundle. The baffle plate 224 is welded to the cylinder 102 by means of a connecting rod (not shown).

[0030] Figure 3A is a radial cross-sectional view of the condenser 120 in Figure 2, taken along line AA. As shown in Figure 3A, the heat exchange tube bundle in the cavity 205 is arranged along the width and height directions of the cavity 205. The condenser 120 includes a first heat exchange tube group 301, a second heat exchange tube group 302, a third heat exchange tube group 303, and a bottom heat exchange tube group 304. The bottom heat exchange tube group 304 is located below the cavity 205 and is arranged along the inner wall of the bottom of the shell 201. The first heat exchange tube group 301, the second heat exchange tube group 302, and the third heat exchange tube group 303 are all arranged along the height and width directions of the cavity 205. In the height direction of the cavity 205, the first heat exchange tube group 301, the second heat exchange tube group 302, and the third heat exchange tube group 303 are all located above the bottom heat exchange tube group 304. In the width direction of the cavity 205, the second heat exchange tube group 302 and the third heat exchange tube group 303 are located on both sides of the first heat exchange tube group 301. In the width direction of the cavity 205, the refrigerant inlet 211 is aligned with at least a portion of the first heat exchange tube group 301 and is offset from the second heat exchange tube group 302 and the third heat exchange tube group 303. The height of each of the first heat exchange tube group 301, the second heat exchange tube group 302, and the third heat exchange tube group 303 is not less than the radius of the cavity 205.

[0031] The first heat exchange tube assembly 301 has a top 315, a bottom 316, a left side 317, and a right side 318. The first heat exchange tube assembly 301 is located below the anti-impact plate 224. There is a certain distance between the top 315 of the first heat exchange tube assembly 301 and the anti-impact plate 224 to facilitate the flow of refrigerant along the length of the cavity 205 after being guided by the anti-impact plate 224, ensuring that the top 315 of the first heat exchange tube assembly 301 receives refrigerant evenly. There is a certain distance between the bottom 316 of the first heat exchange tube assembly 301 and the bottom heat exchange tube assembly 304. The second heat exchange tube assembly 302 is located to the left of the first heat exchange tube assembly 301. The second heat exchange tube assembly 302 has a top 325, a bottom 326, a left side 327, and a right side 328. The bottom 326 of the second heat exchange tube assembly 302 is higher than the bottom heat exchange tube assembly 324. The left side portion 327 of the second heat exchange tube assembly 302 is disposed adjacent to the inner wall of the shell 201. The right side portion 328 of the second heat exchange tube assembly 302 is spaced apart from the left side portion 317 of the first heat exchange tube assembly 301. The third heat exchange tube assembly 303 is located to the right of the first heat exchange tube assembly 301. The third heat exchange tube assembly 303 has a top 335, a bottom 336, a left side portion 337, and a right side portion 338. The bottom 336 of the third heat exchange tube assembly 303 is higher than the bottom heat exchange tube assembly 304. The right side portion 338 of the third heat exchange tube assembly 303 is disposed adjacent to the inner wall of the shell 201. The left side portion 327 of the third heat exchange tube assembly 303 is spaced apart from the right side portion 318 of the first heat exchange tube assembly 301.

[0032] During the operation of condenser 120, the liquid refrigerant at the bottom of condenser 120 maintains a certain liquid level, as shown by the dashed line 350. The bottom heat exchange tube assembly 304 is immersed in the liquid refrigerant, thereby subcooling the liquid refrigerant. The bottom 316 of the first heat exchange tube assembly 301 is higher than the liquid refrigerant level, thus forming a transverse fluid channel 312 between the bottom 316 of the first heat exchange tube assembly 301 and the liquid refrigerant level plane, which allows gaseous refrigerant to pass through.

[0033] The condenser 120 includes a pair of first baffles 331 and 332. In the width direction of the cavity 205, the first baffle 331 is adjacent to the left side portion 317 of the first heat exchange tube assembly and has a small gap between them. The first baffle 332 is adjacent to the right side portion 318 of the first heat exchange tube assembly 301 and has a small gap between them. The upper end of the first baffle 331 is connected to the housing 201, and the lower end of the first baffle 331 is flush with the bottom of the first heat exchange tube assembly 301. The first baffle 331 extends along its length, and its two ends in the length direction are connected to the left tube plate 216 and the right tube plate 214, respectively. The upper end of the first baffle 332 is connected to the housing 201, and the lower end of the first baffle 332 is flush with the bottom of the first heat exchange tube assembly 301. The first baffle 332 extends along its length, and its two ends in the length direction are connected to the left tube plate 216 and the right tube plate 214, respectively. The upper ends of the first baffle 331 and the upper ends of the first baffle 332 are located on both sides of the refrigerant inlet 211, respectively, where they connect with the housing 201.

[0034] First baffles 331 and 332, left tube sheet 216, and right tube sheet 214 form a first receiving space 321, and a first heat exchange tube assembly 301 is disposed in the first receiving space 321. The first receiving space 321 has a first receiving space inlet 341 located at the upper part of the first receiving space 321 and a first receiving space outlet 342 located at the lower part of the first receiving space 321, wherein the first receiving space inlet 341 communicates with the refrigerant inlet 211, and the first receiving space outlet 342 communicates with the transverse fluid channel 312. The top 315 of the first heat exchange tube assembly 301 is lower than the first receiving space inlet 341. In one embodiment of this application, the anti-impact plate 224 is also located in the first receiving space 321 and is lower than the first receiving space inlet 341. In other embodiments of this application, the anti-impact plate 224 may be located above the first receiving space 321.

[0035] The first baffle 331 and the first baffle 332 each include a main body section 351 and a guide section 352. The main body section 351 extends along the height direction of the cavity 205, with its bottom flush with the first heat exchange tube assembly 301 and its top extending beyond or flush with the top of the first heat exchange tube assembly 301. The guide section extends upward from the top of the main body section 351 and in a direction away from the first heat exchange tube assembly 301 until it connects with the housing 201, thus the guide section 352 is located above the first vertical fluid channel 348 or the second vertical fluid channel 349. The orientation of the guide section 352 facilitates the smooth flow of fluid in the first vertical fluid channel 348 and the second vertical fluid channel 349 to the second receiving space 322 and the third receiving space 323. Meanwhile, the guide section 352 makes the upper part of the first accommodating space 321 gradually narrow to a truncated cone shape, which is conducive to guiding the gaseous refrigerant to the top of the first heat exchange tube group 301.

[0036] The condenser also includes a second baffle 333 and a third baffle 334. The second baffle 333 is adjacent to the right side portion 328 of the second heat exchange tube assembly 302 and has a small gap between them. The second baffle 333 extends along the length of the cavity 205, and its two ends in the length direction are connected to the left tube sheet 216 and the right tube sheet 214, respectively. The second baffle 333, the shell 201, the left tube sheet 216 and the right tube sheet 214 form a second receiving space 322, in which the second heat exchange tube assembly 302 is located. The second receiving space 322 has a second receiving space inlet 343 located at its upper part and a second receiving space outlet 344 located at its lower part. There is a gap between the second baffle 333 and the first baffle 331, thereby forming a first vertical fluid channel 348. The upper end of the first vertical fluid channel 348 communicates with the second receiving space inlet 343, and the lower end of the first vertical fluid channel 348 communicates with the transverse fluid channel 312.

[0037] Similarly, the third baffle 334 is adjacent to the left side portion 337 of the third heat exchange tube assembly 303 and has a small gap between them. The third baffle 334 extends along the length of the cavity 205, and its two ends in the length direction are connected to the left tube sheet 216 and the right tube sheet 214, respectively. The third baffle 334, the shell 201, the left tube sheet 216 and the right tube sheet 214 form a third receiving space 323, in which the third heat exchange tube assembly 303 is located. The third receiving space 323 has a third receiving space inlet 345 located at its upper part and a third receiving space outlet 346 located at its lower part. There is a gap between the third baffle 334 and the first baffle 332, thereby forming a second vertical fluid channel 349. The upper end of the second vertical fluid channel 349 communicates with the third receiving space inlet 345, and the lower end of the second vertical fluid channel 349 communicates with the transverse fluid channel 312.

[0038] In the height direction of the cavity 205, the second baffle 333 and the third baffle 334 extend beyond the first baffle 331 and the first baffle 332, respectively. During the operation of the condenser 120, the lower ends of the second baffle 333 and the third baffle 334 are at least partially immersed in the liquid refrigerant. That is, the bottom of the second baffle 333 and the bottom of the third baffle 334 are below the liquid level of the liquid refrigerant, thereby closing the transverse fluid channel 312 in the height direction of the cavity 205.

[0039] Figure 3B is a schematic diagram of the refrigerant flow direction in the condenser 120 of Figure 3A. As shown in Figure 3B, gaseous refrigerant from the refrigerant circulation loop enters the condenser 120 through the refrigerant inlet 211. Since the tops of the first baffles 331 and 332 are connected to the shell, and the two ends of the length direction of the first baffles 331 and 332 are connected to the left tube plate 216 and the right tube plate 214, the gaseous refrigerant entering the condenser from the refrigerant inlet 211 enters the first receiving space 321 through the first receiving space inlet 341. The gaseous refrigerant entering the first receiving space 321 is guided by the anti-impact plate 224, and after being collected and guided by the guide sections 352 of the first baffles 331 and 332, it flows more evenly to the top 315 of the first heat exchange tube group 301. The first baffles 331 and 332 prevent the gaseous refrigerant from flowing towards the second heat exchange tube group 302 and the third heat exchange tube group 303. Thus, the gaseous refrigerant flows from top to bottom in the gaps between the heat exchange tubes of the first heat exchange tube assembly 301, exchanging heat with the medium inside the heat exchange tubes of the first heat exchange tube assembly 301. During the heat exchange process between the gaseous refrigerant and the first heat exchange tube assembly 301, a portion of the gaseous refrigerant condenses into liquid refrigerant, while the other portion remains gaseous. The liquid refrigerant flows downward, passing through the transverse fluid channel 312 until it merges with the deposited liquid refrigerant at the bottom of the condenser 120. The gaseous refrigerant then leaves the first heat exchange tube assembly 301 and enters the transverse fluid channel 312. Since the two ends of the transverse fluid channel 312 are connected to the first vertical fluid channel 348 and the second vertical fluid channel 349 respectively, the gaseous refrigerant flows upward along the first vertical fluid channel 348 and the second vertical fluid channel 349, and is guided by the guide sections 352 of the first baffles 331 and 332, entering the second receiving space inlet 343 and the third receiving space inlet 345 respectively. The gaseous refrigerant continues to exchange heat in the second heat exchange tube group 302 and the third heat exchange tube group 303, transforming into liquid refrigerant, which flows out from the second containment space outlet 344 and the third containment space outlet 346, and merges with the liquid refrigerant deposited at the bottom of the condenser 120. The liquid refrigerant, after being condensed by the condenser 120, flows out from the refrigerant outlet 212 and enters the refrigerant circulation loop.

[0040] In the embodiment shown in this application, the gaseous refrigerant flows through the first heat exchange tube group 301 in the condenser 120 for heat exchange, and then through the second heat exchange tube group 302 and the third heat exchange tube group 303 for heat exchange. Because the first baffles 331 and 332, the second baffles 333 and the third baffles 334 divide the internal space of the condenser 120, the flow cross-sectional area in the direction of gaseous refrigerant flow is reduced compared to a conventional condenser, thereby increasing the flow velocity of the gaseous refrigerant and improving the heat exchange efficiency of the condenser.

[0041] Figure 4 is a radial cross-sectional view of a second embodiment of the condenser in this application. Similar to the embodiment shown in Figure 3A, except that the embodiment in Figure 4 includes only one vertical fluid channel. As shown in Figure 4, the condenser includes a first heat exchange tube assembly 401, a second heat exchange tube assembly 402, and a bottom heat exchange tube assembly 404, as well as a first baffle 431 and a second baffle 433.

[0042] Both the first heat exchanger tube assembly 401 and the second heat exchanger tube assembly 402 are arranged along the height and width directions of the cavity 205. In the height direction of the cavity 205, both the first heat exchanger tube assembly 401 and the second heat exchanger tube assembly 402 are located above the bottom heat exchanger tube assembly 404. In the width direction of the cavity 205, the second heat exchanger tube assembly 402 is located to one side of the first heat exchanger tube assembly 401. The refrigerant inlet 211 is aligned with at least a portion of the first heat exchanger tube assembly 401 and offset from the second heat exchanger tube assembly 402 in the width direction.

[0043] During condenser operation, the liquid refrigerant at the bottom of the condenser maintains a certain level, as shown by the dashed line 450. The bottom heat exchange tube assembly 404 is immersed in the liquid refrigerant, thereby subcooling the liquid refrigerant. The bottom of the first heat exchange tube assembly 401 is higher than the liquid refrigerant level, thus forming a transverse fluid channel 412 between the first heat exchange tube assembly 401 and the liquid refrigerant level plane, which allows gaseous refrigerant to pass through.

[0044] The first heat exchange tube assembly 401 has a left side portion 417 and a right side portion 418, with the right side portion 418 adjacent to the inner wall of the shell 201. The second heat exchange tube assembly 402 has a left side portion 427 and a right side portion 428, with the left side portion 427 adjacent to the inner wall of the shell 201 and the right side portion 428 having a gap with the first heat exchange tube assembly 401. A first baffle 431 is adjacent to the left side portion 417 of the first heat exchange tube assembly 401, and a second baffle 433 is adjacent to the right side portion 428 of the second heat exchange tube assembly 402, thereby forming a vertical fluid channel 448 between the first baffle 431 and the second baffle 432, which communicates with the transverse fluid channel 412.

[0045] The upper end of the first baffle 431 is connected to the shell, and the lower end of the first baffle 431 is flush with the bottom of the first heat exchange tube assembly 401. The two ends of the first baffle 431 along the length of the cavity 205 are respectively connected to the left tube sheet 216 and the right tube sheet 214. The inner walls of the first baffle 431, the shell 201, the left tube sheet 216, and the right tube sheet 214 form a first receiving space 421, in which the first heat exchange tube assembly 401 is located. The first receiving space 421 has a first receiving space inlet 441 and a first receiving space outlet 442. The first receiving space inlet 441 communicates with the refrigerant inlet 211, and the first receiving space outlet 442 communicates with the transverse fluid channel 412.

[0046] A second receiving space 422 is formed between the second baffle 433 and the housing 201. The second heat exchange tube assembly 402 is disposed in the second receiving space 422. The second receiving space 422 has a second receiving space inlet 443 and a second receiving space outlet 444. The second receiving space inlet 443 is connected to the vertical fluid channel 438, and the second receiving space outlet 444 is located below the refrigerant liquid level plane when the condenser is working.

[0047] The first baffle 431 includes a main body section 451 and a guide section 452. The main body section 451 extends along the height direction of the cavity 205, with its bottom flush with the first heat exchange tube assembly and its top extending beyond or flush with the top of the first heat exchange tube assembly 401. The guide section 452 extends upward from the top of the main body section 451 and in a direction away from the first heat exchange tube assembly 401 until it connects with the housing 201, thus positioning the guide section 452 above the vertical fluid channel 448. The orientation of the guide section 452 facilitates the smooth flow of fluid in the vertical fluid channel 448 to the second receiving space 422.

[0048] In the height direction of the cavity 205, the second baffle 433 extends downward beyond the first baffle 431. During the operation of the condenser 120, the lower end of the second baffle 433 is at least partially immersed in the liquid refrigerant, that is, the bottom of the second baffle 433 is below the liquid level of the liquid refrigerant, thereby closing the transverse fluid channel 412 in the height direction of the cavity 205.

[0049] Gaseous refrigerant from the refrigerant circulation loop enters the condenser 120 through refrigerant inlet 211. The gaseous refrigerant entering the condenser from refrigerant inlet 211 enters the first containment space 421 through the first containment space inlet 441. Entering the first containment space 421, the gaseous refrigerant is guided by the anti-impact plate 424 and then collected and guided by the guide section 452 of the first baffle 431, flowing relatively evenly towards the top of the first heat exchange tube assembly 401. The first baffle 431 prevents the gaseous refrigerant from flowing towards the second heat exchange tube assembly 402. Thus, the gaseous refrigerant flows downwards in the gaps between the heat exchange tubes of the first heat exchange tube assembly 401, exchanging heat with the medium inside the heat exchange tubes. During the heat exchange process between the gaseous refrigerant and the first heat exchange tube assembly 401, a portion of the gaseous refrigerant condenses into liquid refrigerant, while the other portion remains gaseous. The liquid refrigerant flows downwards, passing through the transverse fluid channel 412 until it merges with the deposited liquid refrigerant at the bottom of the condenser. The gaseous refrigerant leaves the first heat exchange tube assembly 401 and enters the transverse fluid channel 412. Since one end of the transverse fluid channel 412 is connected to the vertical fluid channel 448, the gaseous refrigerant flows upwards along the vertical fluid channel 448 and is guided by the guide section 352 of the first baffle 431, entering the inlet 443 of the second containment space. The gaseous refrigerant exchanges heat with the medium in the heat exchange tubes of the second heat exchange tube assembly 402, transforming into liquid refrigerant, which flows out from the outlet 445 of the second containment space and merges with the deposited liquid refrigerant at the bottom of the condenser 120. The liquid refrigerant, after being condensed by the condenser 120, flows out from the refrigerant outlet 212 and enters the refrigerant circulation loop. The embodiment shown in Figure 4 can also improve the heat exchange efficiency of the condenser.

[0050] Figure 5 is a radial cross-sectional view of a third embodiment of the condenser in this application. Similar to the embodiment shown in Figure 3A, the embodiment shown in Figure 5 also includes a central baffle. As shown in Figure 5, the condenser includes a first heat exchange tube assembly 501, a second heat exchange tube assembly 502, a third heat exchange tube assembly 503, and a bottom heat exchange tube assembly 504, as well as first baffles 531 and 532, a second baffle 533, and a third baffle 534. Central baffles 551 and 552 are provided in the first heat exchange tube assembly 501, the second heat exchange tube assembly 502, and the third heat exchange tube assembly 503. The central baffles 551 and 552 extend along the length of the cavity 205, and their respective ends in the length direction are connected to the left tube sheet 216 and the right tube sheet 214, respectively. The central guide vane 551 includes a first inclined section 554 and a second inclined section 555. The first inclined section 554 has a small gap with the first baffle 531 and extends upward inclinedly from the first baffle 531. The second inclined section has a small gap with the first baffle 532 and extends upward inclinedly from the first baffle 532 until it connects with the first inclined section 554. Thus, in the radial cross-section of the condenser, the central guide vane 551 is inverted "V" shaped. The central guide vane 551 is provided with elongated vent holes extending along the inclined direction, allowing gaseous refrigerant to pass through. The central guide vane 551 can guide a portion of the liquid refrigerant generated by the heat exchange tubes above the central guide vane 551 to flow along the first baffles 531 and 532, instead of dripping directly onto the heat exchange tubes below the central guide vane 551, thereby reducing the liquid film generated on the outer wall of the heat exchange tubes below the central guide vane 551 and improving heat exchange efficiency. Meanwhile, the vent on the central guide plate 551 allows gaseous refrigerant to pass through and continue to exchange heat with the heat exchange tube below the central guide plate 551.

[0051] Similarly, in the second heat exchanger tube group 502 or the third heat exchanger tube group 503, the central guide plate 552 is spaced apart from the second baffle 533 or the third baffle 534, and extends upward at an angle from the second baffle 533 or the third baffle 534, thereby guiding the liquid refrigerant to flow along the second baffle 533 or the third baffle 534, while the gaseous refrigerant continues to exchange heat with the heat exchange tubes below the central guide plate 552 through the vent holes of the central guide plate 552. The central guide plate 552 is entirely an inclined section. In other embodiments of this application, the central guide plate 552 may also have a smaller gap with the housing 201 and extend upward at an angle from the housing 201 to guide the liquid refrigerant to flow along the housing. The second heat exchanger tube group 502 or the third heat exchanger tube group 503 may also be provided with an inverted "V"-shaped central guide plate.

[0052] The embodiment shown in Figure 5 is based on the embodiment shown in Figure 3A. The central guide plate diverts the refrigerant to a certain extent in the middle of the first heat exchange tube group 501, the second heat exchange tube group 502, or the third heat exchange tube group 503. It guides part of the liquid refrigerant to flow along the first baffle 531 and 532, the second baffle 533, the third baffle 534, or the shell 201, reducing the impact of the liquid refrigerant on the heat exchange tubes below the central guide plate. This can improve the heat exchange efficiency of the heat exchange tubes below the guide plate, thereby improving the heat exchange efficiency of the condenser.

[0053] Figure 6 is a radial cross-sectional view of the fourth embodiment of the condenser in this application. As shown in Figure 6, the condenser includes a first heat exchange tube assembly 601, a second heat exchange tube assembly 602, and a bottom heat exchange tube assembly 604. In the height direction of the cavity 205, the first heat exchange tube assembly 601 is located above the second heat exchange tube assembly 602, and the second heat exchange tube assembly 602 is located above the bottom heat exchange tube assembly 604. The first heat exchange tube assembly 601 has a top 615, a bottom 616, a left side 617, and a right side 618. The left side 617 and the right side 618 are respectively adjacent to the shell 201. The second heat exchange tube assembly 602 has a top 625, a bottom 626, a left side 627, and a right side 628. There is a certain distance between the left side 627 of the second heat exchange tube assembly 602 and the shell 201, and there is also a certain distance between the right side 628 of the second heat exchange tube assembly 602 and the shell 201.

[0054] The condenser also includes a first baffle 631, a second baffle 632, and a flow guide plate 650. The first baffle 631 is disposed adjacent to the left side 627 of the second heat exchange tube assembly 602. The first baffle 631 is connected to the left tube sheet 216 and the right tube sheet 214 at both ends along the length of the cavity 205, extending vertically. Its top is not lower than the height of the second heat exchange tube assembly 602, and its bottom is connected to the shell 201. The second baffle 632 is connected to the left tube sheet 216 and the right tube sheet 214 at both ends along the length of the cavity 205, extending vertically. Its top is not lower than the height of the second heat exchange tube assembly 602, and its bottom is connected to the shell 201. The flow guide plate 650 is connected to the left tube sheet 216 and the right tube sheet 214 at both ends along the length of the cavity 205. The flow guide plate 650 is connected to the top of the first baffle 631 and the second baffle 632 at both ends in the width direction of the cavity 205, respectively. The first baffle 631, the second baffle 632, the flow guide plate 650 and the shell form a bottom heat exchange space 670, and the second heat exchange tube group 602 and the bottom heat exchange tube group 604 are both located in the bottom heat exchange space 670.

[0055] A certain distance exists between the first baffle 631 and the housing 201, thus forming a fluid space 640. A certain distance exists between the second baffle 632 and the housing 201, thus forming a fluid space 641. Openings are provided at the lower parts of the first baffle 631 and the second baffle 632 to form a connecting channel, allowing the bottom heat exchange space 670 to communicate with the fluid spaces 640 and 641. In other embodiments of this application, the connecting channel can also be formed by the distance between the bottom of the first baffle 631 and the second baffle 632 and the housing 201. The guide plate 650 gradually decreases from the middle to both sides, thus forming a first inclined section 655 and a second inclined section 656, which guide the liquid refrigerant to flow into the fluid spaces 640 and 641. The first inclined section 655 and the second inclined section 656 are provided with elongated vent holes extending along their respective inclined directions to allow gaseous refrigerant to pass through.

[0056] In the embodiment shown in Figure 6, gaseous refrigerant enters the condenser through refrigerant inlet 211, and after being guided by anti-impact plate 624, flows evenly to the top 615 of the first heat exchange tube group 601. The refrigerant flows from top to bottom in the first heat exchange tube group 601, exchanging heat with the heat exchange tubes. A portion of the gaseous refrigerant is converted into liquid refrigerant, while a portion remains gaseous. Most of the liquid refrigerant is guided by guide plate 650 to flow into fluid space 640 and fluid space 641, and then flows through the fluid channels below the first baffle 631 and the second baffle 632 to the bottom heat exchange tube group 604. The gaseous refrigerant and a small amount of liquid refrigerant enter the second heat exchange tube group 602 through the vent holes on guide plate 650 for heat exchange, converting into liquid refrigerant that flows to the bottom heat exchange tube group 604. The liquid refrigerant continues to be cooled by the bottom heat exchange tube group 604 and then flows out through the refrigerant outlet.

[0057] In the embodiment shown in Figure 6, in the downward flow direction of the refrigerant, the flow cross-sectional area of ​​the bottom heat exchange space is smaller than the flow cross-sectional area of ​​the bottom 616 of the first heat exchange tube assembly 601. This increases the flow velocity of the gaseous refrigerant in the second heat exchange tube assembly 602, which helps to change the flow pattern of the gaseous refrigerant in the second heat exchange tube assembly 602 and improves the heat exchange efficiency in the second heat exchange tube assembly 602. Simultaneously, the guide plate 650 introduces a portion of the liquid refrigerant generated by the first heat exchange tube assembly 601 into the fluid space 640 and fluid space 641 to prevent this portion of liquid refrigerant from entering the second heat exchange tube assembly 602 and affecting its heat exchange efficiency.

[0058] In another embodiment of this application, only the first baffle 631 and the second baffle 632 may be provided, without the guide plate 650. This can also increase the flow rate of the gaseous refrigerant in the second heat exchange tube assembly 602 to a certain extent, thereby improving the heat exchange efficiency of the second heat exchange tube assembly 602.

[0059] The condenser involved in this application is a shell-and-tube condenser, in which the refrigerant flows between the heat exchange tubes, and the cooling medium flows inside the heat exchange tubes. Generally, in traditional shell-and-tube condensers, because the gaseous refrigerant is continuously condensed into a liquid state, the refrigerant flow rate at the bottom of the condenser decreases, and the gaseous refrigerant does not easily diffuse to the middle and lower heat exchange tubes. The heat exchange efficiency of the middle and lower heat exchange tubes is relatively low.

[0060] Furthermore, in traditional condensers, heat exchange tubes are arranged in a row, with the refrigerant inlet located at the top and the refrigerant outlet at the bottom, and the refrigerant flowing from top to bottom. As the gaseous refrigerant flows, it is continuously condensed into liquid refrigerant. Therefore, the lower heat exchange tubes are affected by the liquid refrigerant produced during condensation, resulting in a thicker liquid film on the lower tubes and a decrease in the heat transfer coefficient. The heat transfer coefficient of the heat exchange tubes can be expressed by the following formula: in, The condensation heat transfer coefficient of the Nth row of tubes, The condensation heat transfer coefficient of the first row of tubes.

[0061] In this application, the baffle increases the flow rate of gaseous refrigerant in the condenser, which helps to break through the liquid film on the heat exchange tubes and makes it easier for the gaseous refrigerant to diffuse to the heat exchange tubes in the lower part of the condenser, thereby improving the condensation heat exchange efficiency.

[0062] Some embodiments of the condenser in this application also include a baffle plate, which can promptly discharge condensate, thinning the liquid film on the lower heat exchange tubes and improving heat exchange efficiency; it can also redistribute the gaseous refrigerant, changing its flow state and improving heat exchange effect. Through the guidance and redistribution of the baffle plate, the heat transfer coefficient of the heat exchange tubes below the baffle plate can be increased. The heat transfer coefficient of the first row of heat exchange tubes below the baffle plate reaches or exceeds the heat transfer coefficient of the first row of heat exchange tubes in existing condensers.

[0063] Although only some features of this application have been illustrated and described herein, many modifications and variations can be made by those skilled in the art. Therefore, it should be understood that the appended claims are intended to cover all such modifications and variations that fall within the substantive spirit of this application.

[0064] 100: Refrigeration System 110: Compressor 120: Condenser 130: Evaporator 140: Throttling device 201: Shell 204: Cylinder 205: Cavity 208: Chamber 209: Chamber 211: Refrigerant Inlet 212: Refrigerant outlet 214: Right tube sheet 216: Left tube sheet 222: Medium Inlet 223: Medium outlet 224: Anti-impact plate 226: Rear water tank 228: Front Water Tank 232:Inlet cavity 234: Outlet cavity 242: Upper tubular bundle 244: Lower tubular bundle 301: First heat exchanger tube assembly 302: Second heat exchanger tube assembly 303: Third heat exchanger tube assembly 304: Bottom heat exchanger tube assembly 312: Lateral fluid channel 315: Top 316: Bottom 317: Left side 318: Right side 321: First Accommodation Space 322: Second Accommodation Space 323: Third Accommodation Space 325: Top 326: Bottom 327: Left side 328: Right side 331: First baffle 332: First baffle 333: Second baffle 334: Third baffle 335: Top 336: Bottom 337: Left side 338: Right side 341: Entrance to the First Accommodation Space 342: Exit of the first containment space 343: Entrance to the Second Accommodation Space 344: Second containment space exit 345: Entrance to the Third Accommodation Space 346: Third containment space exit 348: First vertical fluid channel 349: Second vertical fluid channel 350: Dashed line 351: Main body paragraph 352: Introductory Section 401: First heat exchanger tube assembly 402: Second heat exchanger tube assembly 404: Bottom heat exchanger tube assembly 412: Lateral fluid channel 417: Left side 418: Right side 421: First Accommodation Space 422: Second Accommodation Space 424: Impact-resistant plate 427: Left side 428: Right side 431: First baffle 433: Second baffle 441: Entrance to the First Accommodation Space 442: Exit of the First Accommodation Space 443: Entrance to the Second Accommodation Space 444: Second containment space exit 448: Vertical fluid channel 450: Dashed line 452: Introductory Section 501: First heat exchanger tube assembly 502: Second heat exchanger tube assembly 503: Third heat exchanger tube assembly 504: Bottom heat exchanger tube assembly 531: First Baffle 532: First baffle 533: Second baffle 534: Third baffle 551: Central deflector 552: Central deflector 554: First inclined segment 555: Second inclined segment 601: First heat exchanger tube assembly 602: Second heat exchanger tube assembly 604: Bottom heat exchanger tube assembly 615: Top 616: Bottom 617: Left side 618: Right side 624: Anti-impact plate 631: First Baffle 632: Second baffle 640: Fluid Space 641: Fluid Space 650: Drainage plate 655: First inclined segment 656: Second inclined segment 670: Bottom heat exchange space 677: Connection Channel H: Height direction L: Length direction W: Width direction

Claims

1. A condenser comprising: A housing (201) includes a cavity (205), a refrigerant inlet (211), and a refrigerant outlet (212); a first heat exchange tube assembly (301), a second heat exchange tube assembly (302), and a third heat exchange tube assembly (303), wherein the second heat exchange tube assembly (302) and the third heat exchange tube assembly (303) are arranged on opposite sides of the first heat exchange tube assembly (301) in the width direction of the cavity (205), and a transverse fluid channel (312) is provided below the first heat exchange tube assembly (301); a pair of first baffles (331, 332) are adjacent to the opposite sides of the first heat exchange tube assembly (301); A second baffle (333) is adjacent to one side of the second heat exchange tube group (302) immediately adjacent to the first heat exchange tube group (301), wherein the second baffle (333) forms a first vertical fluid channel (348) between itself and one of the first baffles (331) immediately adjacent to the second heat exchange tube group (302), and the first vertical fluid channel (348) communicates with the transverse fluid channel (312); and a third baffle (334) is adjacent to one side of the third heat exchange tube group (303) immediately adjacent to the first heat exchange tube group (301), wherein the third baffle (334) forms a second vertical fluid channel (349) between itself and another of the first baffles (332) immediately adjacent to the third heat exchange tube group (303), and the second vertical fluid channel (349) communicates with the transverse fluid channel (312); The pair of first baffles (331, 332) are configured such that the first heat exchange tube assembly (301) receives refrigerant from the refrigerant inlet (211), and the pair of first baffles (331, 332), the second baffle (333) and the third baffle (334) are configured to guide the refrigerant from the first heat exchange tube assembly (301) to the second heat exchange tube assembly (302) and the third heat exchange tube assembly (303) through the transverse fluid channel (312), the first vertical fluid channel (348) and the second vertical fluid channel (349).

2. The condenser as requested in item 1, wherein: During operation of the condenser, the lower portion of the second baffle (333) and the lower portion of the third baffle (334) are at least partially immersed in liquid refrigerant.

3. The condenser as described in request item 1, wherein: A first containment space (321) is formed between the pair of first baffles (331, 332), and the first heat exchange tube assembly (301) is disposed in the first containment space (321). The first containment space (321) has a first containment space inlet (341) and a first containment space outlet (342). The first containment space inlet (341) is connected to the refrigerant inlet (211), and the first containment space outlet (342) is connected to the transverse fluid channel (312).

4. The condenser as described in request item 1, wherein: The second baffle (333) and the housing (201) form a second receiving space (322), the second heat exchange tube assembly (302) is disposed in the second receiving space (322), the second receiving space (322) has a second receiving space inlet, the second receiving space inlet is connected to the first vertical fluid channel (348); the third baffle (334) and the housing (201) form a third receiving space (323), the third heat exchange tube assembly (303) is disposed in the third receiving space (323), the third receiving space (323) has a third channel inlet, the second receiving space inlet is connected to the second vertical fluid channel.

5. The condenser as described in request item 1, wherein: Each of the first baffles (331, 332) includes a main body section (351) and a guide section (352). The main body section (351) extends along the height direction of the cavity (205). The top of the main body section (351) is flush with or exceeds the top of the first heat exchange tube assembly (301). The guide section (352) extends from the top of the main body section (351) at an oblique angle and connects to the housing (201). The guide section (352) is located above the first vertical fluid channel (348) or the second vertical fluid channel (349).

6. The condenser of claim 1, further comprising: A central guide vane (551, 552) includes a configuration to allow gas to flow through a plurality of vents therein, wherein the central guide vane (551, 552) is disposed in the first heat exchange tube assembly (301), the second heat exchange tube assembly (302), or the third heat exchange tube assembly (303), the central guide vane (551, 552) includes at least one inclined section (555) extending at an oblique angle from at least one of the pair of first baffles (331, 332), the second baffle (333), the third baffle (334), or the housing (201) to guide liquid refrigerant to flow along one of the pair of first baffles (331, 332), the second baffle (333), the third baffle (334), or the housing (201).

7. The condenser as described in request item 6, wherein: These vents are elongated strips extending along at least one inclined section (555).

8. A condenser comprising: The housing (201) includes a cavity (205), a refrigerant inlet (211) and a refrigerant outlet (212); a first heat exchange tube assembly (401), a second heat exchange tube assembly (402) and a transverse fluid channel (412) below the first heat exchange tube assembly (401). A first baffle (431) and a second baffle (433) are provided. The first baffle (431) is adjacent to the first heat exchange tube assembly (301), and the second baffle (433) is adjacent to the second heat exchange tube assembly (402). A vertical fluid channel (448) is formed between the first baffle (431) and the second baffle (433). The vertical fluid channel (448) is connected to the horizontal fluid channel (412). The upper end of the first baffle (431) extends above the first heat exchange tube assembly (401) and is connected to the shell (201). The lower end of the first baffle (431) extends to the lower end of the first heat exchange tube assembly (401), and the upper end of the second baffle (433) extends to the upper end of the second heat exchange tube assembly (402). The first baffle (431) and the second baffle (433) are configured such that the first heat exchange tube assembly receives refrigerant from the refrigerant inlet (211), and the second heat exchange tube assembly (402) receives refrigerant from the first heat exchange tube assembly (401) through the transverse fluid channel (412) and the vertical fluid channel (448).

9. The condenser as requested in item 8, wherein: During the operation of the condenser, the lower end of the second baffle (433) is at least partially immersed in liquid refrigerant.

10. The condenser as requested in item 8, wherein: The first baffle (431) and the housing (201) form a first receiving space (421), the first heat exchange tube assembly (401) is disposed in the first receiving space (421), the first receiving space (421) has a first receiving space inlet (441) and a first receiving space outlet (442), the first receiving space inlet (441) is connected to the refrigerant inlet (211), and the first receiving space outlet (442) is connected to the transverse fluid channel (412).

11. The condenser as requested in item 8, wherein: The second baffle (433) forms a second receiving space (422) between itself and the housing (201). The second heat exchange tube assembly (402) is disposed in the second receiving space (422). The second receiving space (422) has a second receiving space inlet and is connected to the vertical fluid channel (448).

12. The condenser as requested in item 8, wherein: The first baffle (431) includes a main body section (451) and a guide section (452). The main body section (451) extends along the height direction of the cavity (205). The top of the main body section (451) is flush with or exceeds the top of the first heat exchange tube assembly (401). The guide section (452) extends from the top of the main body section (451) at an oblique angle and is connected to the housing (201). The guide section (452) is located above the vertical fluid channel (448).

13. A condenser comprising: The housing (201) includes a cavity (205), a refrigerant inlet (211), and a refrigerant outlet (212); a first heat exchange tube assembly (601) and a second heat exchange tube assembly (602), wherein in the height direction of the cavity (205), the first heat exchange tube assembly (601) is located above the second heat exchange tube assembly (602), the first heat exchange tube assembly (601) is adjacent to the housing (201) on both sides in the width direction of the cavity (205), and the second heat exchange tube assembly (602) is separated from the housing (201) by a certain distance on at least one side in the width direction of the cavity (205); At least one baffle (631, 632) is disposed adjacent to at least one side of the second heat exchange tube assembly (602), wherein the upper end of the at least one baffle (631, 632) is not higher than the second heat exchange tube assembly (602) in the height direction of the cavity (205), and a fluid space (640) is formed between the side of the at least one baffle (631, 632) and the housing (201).

14. The condenser as described in request item 13, wherein: The lower portion of the at least one baffle (631, 632) includes a connecting channel (677) configured to guide liquid refrigerant through it.

15. The condenser of claim 14, further comprising: A flow guide plate (650) is disposed between the first heat exchange tube assembly (601) and the second heat exchange tube assembly (602), wherein the flow guide plate (650) covers the second heat exchange tube assembly (602) to guide liquid refrigerant to flow into the fluid space (640), and the flow guide plate (650) includes a configuration to guide gaseous refrigerant through a plurality of vent holes therein.

16. The condenser as requested in item 15, wherein: The guide plate (650) includes an inclined section (655) that extends from the top of the at least one baffle (631, 632) toward the centerline of the second heat exchange tube assembly (602) in the width direction of the cavity (205).

17. The condenser as described in request item 16, wherein: These vents are elongated strips extending along the inclined section (655).

Images