Condenser

Abstract

The present application provides a condenser, comprising a housing and an anti-impact assembly. The anti-impact assembly is arranged in a containing cavity of the housing, and the anti-impact assembly comprises a bottom plate, an arched part, a separation assembly, a first side part, and a second side part. The arched part is located above the bottom plate and is connected to the bottom plate, and the arched part is provided with a main ridge extending in a direction perpendicular to the axis of the housing. The separation assembly is located above the bottom plate and the arched part and is connected to the bottom plate and the arched part. The first side part and the second side part are arranged on two opposite sides of the bottom plate and are connected to the bottom plate and the arched part. The anti-impact assembly is configured to be capable of forming at least four diversion passages, and each diversion passage has an inlet and an outlet, so that fluid entering the condenser can flow from the inlet to the outlet. In a direction from the inlet to the outlet along the axis of the housing, the cross-sectional area of each diversion passage in the direction perpendicular to the axis of the housing gradually increases. The anti-impact assembly in the condenser of the present application can rectify gas flow through the arched part, thereby reducing vortex generation and thus reducing noise.

Description

Condenser TECHNICAL FIELD

[0001] The present application relates to the field of condensers. BACKGROUND

[0002] Existing condensers receive gaseous refrigerant from a compressor. The gaseous refrigerant causes energy loss when entering the condenser, which results in a decrease in both dynamic pressure and static pressure of the refrigerant in the condenser. SUMMARY

[0003] Exemplary embodiments of the present application can solve at least some of the above problems. The present application provides a condenser comprising a housing and a baffle assembly. The housing defines a cavity and has a housing axis. The baffle assembly is disposed in the cavity, and comprises a floor, an arch, a partition assembly, a first side portion, and a second side portion. The floor is disposed substantially horizontally. The arch is disposed above the floor and connected to the floor, and has a main ridge extending perpendicularly to the housing axis. The partition assembly is disposed above and connected to the floor and the arch. The first side portion and the second side portion are disposed on opposite sides of the floor and on opposite sides of the partition assembly, and are disposed above the floor and connected to the floor and the arch. The baffle assembly is configured to form at least four flow channels, each of the flow channels having an inlet and an outlet, such that a fluid entering the condenser is able to flow from the inlet toward the outlet. In a direction along the housing axis and from the inlet toward the outlet, a cross-sectional area of each of the flow channels perpendicular to the housing axis gradually increases.

[0004] According to the above condenser, the inlet is closer to the main ridge than the outlet.

[0005] According to the above condenser, the partition assembly, the first side portion, and the second side portion are configured such that, in a horizontal cross-section of the baffle assembly, in a direction along the housing axis and from the inlet toward the outlet, the first side portion and the partition assembly gradually move away from each other, and the second side portion and the partition assembly gradually move away from each other.

[0006] According to the above condenser, in a direction along the housing axis and from the inlet toward the outlet, a height of the partition assembly gradually decreases.

[0007] According to the above condenser, the height of the partition assembly is less than a height of the main ridge.

[0008] According to the condenser, the partition assembly comprises a first partition portion and a second partition portion, which are arranged on opposite sides of the main ridge and extend along the shell axis. The first partition portion and the second partition portion are symmetrically arranged about the main ridge, the first partition portion can divide the space above the bottom plate and the arch portion into first and second sub-flow channels, and the second partition portion can divide the space above the bottom plate and the arch portion into third and fourth sub-flow channels.

[0009] According to the condenser, the width L1 of the main ridge, the distance L2 between the first side portion and the second side portion at the outlet of the sub-flow channel, the bottom width L3 of the arch portion, the distance L4 between the first side portion and the second side portion at the outlet of the sub-flow channel, and the widest width L5 of the partition assembly satisfy:

[0010] According to the condenser, an inlet pipe is connected to the shell, and a portion of the inlet pipe extends into the cavity. The inlet pipe has a pipe axis, the anti-collision assembly has a center line, and the center line passes through and is perpendicular to the main ridge. The pipe axis coincides with the center line.

[0011] According to the condenser, the outlet section of the inlet pipe is a diverging pipe, the inlet of the outlet section is circular, and the outlet of the outlet section is elliptical. The ellipse has a major radius and a minor radius perpendicular to each other, and the extension direction of the minor radius is consistent with the shell axis.

[0012] According to the condenser, the radius r1 of the inlet of the outlet section, the major radius r2 and the minor radius r3 of the outlet of the outlet section, and the height H of the outlet section satisfy:

[0013] The anti-collision assembly in the condenser of the present application can straighten the gas flowing through the arch portion, thereby reducing the generation of vortex flow to reduce noise. In addition, the static pressure recovery coefficient of the condenser of the present application is high. BRIEF DESCRIPTION OF DRAWINGS

[0014] The features and advantages of the present application can be better understood by reading the following detailed description, with reference to the accompanying drawings, in which the same reference numerals represent the same elements throughout the several figures, in which:

[0015] Fig. 1 is a perspective view of a condenser and a compressor of the present application;

[0016] Fig. 2 is a vertical sectional view of the condenser shown in Fig. 1;

[0017] Figure 3 is a perspective view of the anti-impingement assembly of the condenser shown in Figure 2;

[0018] Figure 4A is a top view of the anti-impingement assembly shown in Figure 3;

[0019] Figure 4B is a left view of the anti-impingement assembly shown in Figure 3;

[0020] Figure 4C is a cross-sectional view of the anti-impingement assembly along line A-A in Figure 4A;

[0021] Figure 4D is a cross-sectional view of the anti-impingement assembly along line B-B in Figure 4A;

[0022] Figure 4E is a cross-sectional view of the anti-impingement assembly along line C-C in Figure 4A;

[0023] Figure 4F is a cross-sectional view of the anti-impingement assembly along line D-D in Figure 4B;

[0024] Figure 5A is a perspective view of the inlet pipe and anti-impingement assembly shown in Figure 1;

[0025] Figure 5B is an elevation cross-sectional view of the inlet pipe and anti-impingement assembly in Figure 5A;

[0026] Figure 5C is a cross-sectional view of the outlet of the outlet section in the plane in which it lies.

[0027] Figure 6 is a gas simulation of the flow of gas in the anti-impingement assembly of the present application. DETAILED DESCRIPTION

[0028] Various embodiments of the application will be described in detail with reference to the drawings, which are an integral part of this description. It should be understood that the like parts in the various figures are identified by the same reference numerals.

[0029] Various embodiments of the application will be described in detail with reference to the drawings, which are an integral part of this description. It should be understood that the like parts in the various figures are identified by the same reference numerals.

[0030] FIG. 1 is a perspective view of a condenser and a compressor of the present application. As shown in FIG. 1, a refrigeration system includes a compressor 102 and a condenser 104. The compressor 102 is configured to transform refrigerant into gaseous refrigerant. The condenser 104 is configured to condense the gaseous refrigerant into liquid refrigerant. Specifically, the compressor 102 has a discharge pipe 112. The gaseous refrigerant can exit the compressor 102 through the discharge pipe 112. The condenser 104 includes an inlet pipe 114, a shell 115, and an outlet pipe 116. The inlet pipe 114 is disposed above the shell 115. The outlet pipe 116 is disposed below the shell 115. The shell 115 defines a cavity 204 (see FIG. 2). The inlet pipe 114 and the outlet pipe 116 are both connected to the shell 115, thereby communicating with the cavity 204. The gaseous refrigerant is condensed into liquid refrigerant in the cavity 204, and then discharged through the outlet pipe 116.

[0031] FIG. 2 is a vertical sectional view of the condenser 104 shown in FIG. 1. As shown in FIGS. 1-2, the shell 115 is generally cylindrical with both left and right ends closed. It has a shell axis M extending in the left-right direction (i.e., the length direction of the condenser 104). As shown in FIG. 2, the condenser 104 further includes a baffle assembly 214 and a plurality of heat exchange pipes 212. The baffle assembly 214 and the plurality of heat exchange pipes 212 are disposed in the cavity 204. The inlet pipe 114 is connected to the shell 115, and at least a portion (e.g., the lower end) of the inlet pipe 114 extends into the cavity 204. The inlet pipe 114 is generally a circular pipe having a pipe axis N extending in the up-down direction (i.e., the height direction of the condenser 104). The pipe axis N is generally perpendicular to the shell axis M. The baffle assembly 214 is disposed below the inlet pipe 114 and above the plurality of heat exchange pipes 212, so that the gaseous refrigerant entering the cavity 204 from the inlet pipe 114 does not directly impact the plurality of heat exchange pipes 212. Each of the plurality of heat exchange pipes 212 is generally disposed extending in the left-right direction (i.e., the length direction of the condenser 104). The plurality of heat exchange pipes 212 are arranged in a plurality of rows in the up-down direction (i.e., the height direction of the condenser 104), with each row having a plurality of heat exchange pipes 212. In other words, the plurality of heat exchange pipes 212 are arranged in the front-rear direction (i.e., the width direction of the condenser 104). Thus, when the gaseous refrigerant enters the cavity 204 through the inlet pipe 114, the gaseous refrigerant impacts the baffle assembly 214, and then flows downwardly past the plurality of heat exchange pipes 212. The plurality of heat exchange pipes 212 have a heat exchange fluid (not shown) flowing therethrough, thereby exchanging heat with the gaseous refrigerant to transform the gaseous refrigerant into liquid refrigerant.

[0032] FIG. 3 is a perspective view of the anti-impact assembly 214 of the condenser 104 shown in FIG. 2. As shown in FIG. 3, the anti-impact assembly 214 includes a base plate 302 and an arch 304. The base plate 302 is generally a flat plate arranged in a horizontal direction. The base plate 302 is generally rectangular. The base plate 302 has a center point K. The center point K defines a center line Kl extending vertically through the center point K. The arch 304 is arranged above and connected to the base plate 302. The arch 304 is generally left-right symmetrical. The arch 304 protrudes upward relative to the base plate 302. The arch 304 has a main ridge 306 extending in a front-rear direction (i.e., a width direction of the condenser 104). The main ridge 306 is perpendicular to the housing axis M. In the up-down direction (i.e., a height direction of the condenser 104), the height of the main ridge 306 is higher than that of other parts of the arch 304. The vertical projection point of the intersection of the main ridge 306 and the center line Kl coincides with the center point K.

[0033] As shown in FIG. 3, the anti-impact assembly 214 further includes a partition assembly 311, a first side portion 332, and a second side portion 334. The partition assembly 311 is arranged above and connected to the base plate 302 and the arch 304. The first side portion 332 and the second side portion 334 are arranged on opposite sides of the base plate 302 and on opposite sides of the partition assembly 311. The first side portion 332 and the second side portion 334 are arranged above the base plate 302 and connected to the arch 304 and the base plate 302. The first side portion 332 and the second side portion 334 extend upward and outward obliquely from the base plate 302.

[0034] In the present embodiment, the partition assembly 311 includes a first partition portion 312 and a second partition portion 314. The first partition portion 312 and the second partition portion 314 are arranged on opposite sides of the main ridge 306 and formed extending along the housing axis M. The first partition portion 312 and the second partition portion 314 are generally wedge-shaped. They generally include a side wall facing opposite directions and a top surface at a top portion.

[0035] FIG. 4A is a top view of the anti-impingement assembly 214 as shown in FIG. 3. As shown in FIG. 4A, the first partition 312 and the second partition 314 are symmetrically disposed about the main ridge 306, the first side 332 is symmetrically disposed about the main ridge 306, and the second side 334 is symmetrically disposed about the main ridge 306. The first partition 312 is disposed between the first side 332 and the second side 334 and partitions the upper space on one side of the floor 302 and the arch 304 into a first sub-flow passage 411 and a second sub-flow passage 412 that are independent of each other. The second partition 314 is disposed between the first side 332 and the second side 334 and partitions the upper space on the other side of the floor 302 and the arch 304 into a third sub-flow passage 413 and a fourth sub-flow passage 414 that are independent of each other. Each sub-flow passage has an inlet 401 and an outlet 402. The partitions and the partition assembly 311 form opposite sides of the sub-flow passages along the length of the condenser 104. The inlet 401 is closer to the main ridge 306 than the outlet 402. Fluid entering the condenser is able to flow from the inlet 401 toward the outlet 402.

[0036] FIG. 4B is a left view of the anti-impingement assembly 214 as shown in FIG. 3. As shown in FIG. 4B, the height of the partition assembly 311 is less than the height of the main ridge 306, and the height of the partition assembly 311 gradually decreases in a direction along the housing axis M and from the inlet 401 toward the outlet 402. The first side 332 and the second side 334 gradually move away in a direction along the housing axis M and from the inlet 401 toward the outlet 402.

[0037] FIG. 4C is a cross-sectional view of the anti-impingement assembly 214 along line A-A in FIG. 4A. FIG. 4D is a cross-sectional view of the anti-impingement assembly 214 along line B-B in FIG. 4A. FIG. 4E is a cross-sectional view of the anti-impingement assembly 214 along line C-C in FIG. 4A. FIG. 4F is a cross-sectional view of the anti-impingement assembly 214 along line D-D in FIG. 4B. Since the first side 332 is symmetrically disposed about the main ridge 306, the second side 334 is symmetrically disposed about the main ridge 306, and the first side 332 and the second side 334 are symmetrically disposed, the specific structure of the sides (i.e., the first side 332 and the second side 334) will be described with reference to FIGS. 4C-4F by way of example of the portion of the first side 332 on one side of the main ridge 306. In addition, since the first partition 312 and the second partition 314 are symmetric with respect to the main ridge 306, the specific structure of the first partition 312 and the second partition 314 will be described with reference to FIGS. 4C-4F by way of example of the first partition 312.

[0038] As shown in FIGS. 4C-4E, the first side portion 332 includes a first inner side panel 421 and a first outer side panel 422. The first inner side panel 421 is located inward of the first outer side panel 422, and the first inner side panel 421 and the first outer side panel 422 are connected at the top. The first inner side panel 421 is inclined such that the bottom of the first inner side panel 421 is connected to the bottom panel 302 and the arch 304. The connection point L of the first inner side panel 421 to the bottom panel 302 or the arch 304 gradually moves away from the center line K1 in the direction along the housing axis M and from the inlet 401 toward the outlet 402. In other words, the angle between the first inner side panel 421 and the center line K1 gradually decreases. The side wall 432 of the first partition 312, which is located opposite to the first inner side panel 421, gradually moves toward the center line K1 in the direction along the housing axis M and from the inlet 401 toward the outlet 402. As a result, the area of the vertical cross-section enclosed by the first inner side panel 421, the bottom panel 302 or the arch 304, and the side wall 432 gradually increases in the direction along the housing axis M and from the inlet 401 toward the outlet 402. In other words, the cross-sectional area of the flow splitting passage perpendicular to the housing axis M gradually increases in the direction along the housing axis M and from the inlet 401 toward the outlet 402.

[0039] As shown in FIG. 4F, in the horizontal cross-section of the impact protection assembly 214, the first inner side panel 421 and the side wall 432 gradually move away from each other in the direction along the housing axis M and from the inlet 401 toward the outlet 402, such that the first side portion 332 and the partition assembly 311 gradually move away from each other. Similarly, in the horizontal cross-section of the impact protection assembly 214, the second side portion 334 and the partition assembly 311 gradually move away from each other in the direction along the housing axis M and from the inlet 401 toward the outlet 402.

[0040] With continued reference to FIG. 4B, in the cross-section along the width direction of the condenser 104, the width of the main ridge 306 between the first side portion 332 and the second side portion 334 is L1. The distance between the first side portion 332 and the second side portion 334 at the outlet of the flow splitting passage is L2. In other words, the farthest distance between the top of the first side portion 332 and the second side portion 334 is L2. The bottom width of the arch 304 is L3. In other words, the minimum width of the bottom panel 302 is L3. The distance between the first side portion 332 and the second side portion 334 at the outlet of the flow splitting passage is L4. In other words, the farthest distance between the bottom of the first side portion 332 and the second side portion 334 is L4. The widest width of the partition assembly 311 is L5. In other words, the top width of the partition assembly 311 between the inlets of the flow splitting passage is L5. The above L1-L5 satisfy:

[0041] Figure 5A is a perspective view of the inlet pipe 114 and the anti-impact assembly 214 as shown in Figure 1. Figure 5B is a vertical sectional view of the inlet pipe 114 and the anti-impact assembly 214 in Figure 5A. As shown in Figures 5A-5B, the inlet pipe 114 has a pipe axis N. The anti-impact assembly 214 has a center line K1. The pipe axis N and the center line K1 coincide (i.e., coaxially arranged), so that the fluid entering from the inlet pipe 114 can impact the main ridge 306 and enter each of the branch channels from the channel inlet.

[0042] As shown in Figures 5A-5B, the inlet pipe 114 includes a first section 512 and a second section 514 connected together. The first section 512 is arranged outside the shell 115 (see Figure 1), and the second section 514 is arranged in the cavity 204 (see Figure 2). The upper pipe sections of the first section 512 and the second section 514 are circular pipes, each having a radius of r1. The lower pipe section of the second section 514 forms an outlet section 500, which is a diverging pipe. The height of the outlet section 500 is H. The inlet 502 of the outlet section 500 is circular, which is the outlet of the first section 512. The outlet 504 of the outlet section 500 is elliptical. The inlet 502 and the outlet 504 are smoothly connected.

[0043] Figure 5C is a sectional view of the outlet 504 of the outlet section 500 in the plane in which it lies. As shown in Figure 5C, the major radius and the minor radius of the outlet 504 are r2 and r3, respectively. The extension direction of the major radius r2 is consistent with the width direction of the condenser 104, and the extension direction of the minor radius r3 is consistent with the direction of the shell axis M. The height H, the radius r1 of the inlet 502, the major radius r2 and the minor radius r3 satisfy:

[0044] The inventors of the present application found that the existing anti-impact assemblies have a decrease in both dynamic pressure and static pressure of the refrigerant. The inventors of the present application also found that some of the existing anti-impact assemblies include an arching portion, which is intended to guide the movement of the gas, but the gas flow through the arching portion generates vortex, thereby causing noise.

[0045] Figure 6 is a gas simulation diagram of the gas flow in the anti-impact assembly of the present application. As shown in Figure 6, the gas is divided into two streams after flowing through the arching portion 304, and each of the two streams is further divided into two branch streams due to the presence of the partition assembly 311. Each of the branch streams flows in each of the branch channels from the inlet 401 to the outlet 402. In the branch channel, the flow velocity of each of the branch streams is slowed down and diffused due to the gradually increasing cross-sectional area of the branch channel perpendicular to the shell axis in the direction along the shell axis and from the inlet 401 to the outlet 402. The partition assembly 311 can straighten the gas flow through the arching portion 304, thereby reducing the generation of vortex and lowering the noise.

[0046] The inventor of the present application found that the anti-collision assembly including the arching portion in the prior art has a certain static pressure recovery effect. For example, when the static pressure is fully recovered, i.e., the static pressure recovery coefficient is 100%, the static pressure recovery coefficient of the prior art is about 75.3%. In the present application, since the extension direction of the long radius r2 of the ellipse is consistent with the width direction of the condenser 104, and the extension direction of the short radius r3 is consistent with the direction of the shell axis M, the airflow can be guided to be distributed more along the width direction of the condenser 104 to enter the shunt passages, thereby increasing the static pressure recovery coefficient. In one embodiment, the static pressure recovery coefficient of the condenser of the present application can reach 92.1%.

[0047] In other embodiments, a connecting component can be arranged on the top surface of the partition assembly 311, thereby being connected with the shell 115, to enhance the reliability of the anti-collision assembly 214 in the shell 115.

[0048] In the embodiments of the present application, the compressor 102 is shown as a centrifugal compressor, but those skilled in the art can understand that other types of compressors are also within the protection scope of the present application.

[0049] In the embodiments of the present application, the partition assembly 311 includes the first partition portion 312 and the second partition portion 314, thereby cooperating with the first side portion 332 and the second side portion 334 to form four shunt passages, but in other embodiments, the partition assembly 311 can include a plurality of partition portions to form more shunt passages.

[0050] Although the present disclosure has been described in connection with the example of the embodiments outlined above, various alternatives, modifications, variations, improvements, and / or substantially equivalent soultions, whether known or not, can be apparent to those of ordinary skill in the art. Additionally, the technical effects and / or technical problems described in the specification are exemplary and not limiting; therefore the disclosure in the specification can be used to solve other technical problems and have other technical effects and / or can solve other technical problems. Accordingly, the examples of the embodiments of the present disclosure as stated above are intended to be illustrative, not limiting. Various changes can be made without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is intended to include all known or earlier developed alternatives, modifications, variations, improvements, and / or substantially equivalent solutions.

Claims

1. A condenser characterized by, The condenser comprises: a housing (104) defining a cavity (204) and having a housing axis; and a baffle assembly (214) disposed in the cavity (204), the baffle assembly (214) comprising: a floor (302) disposed generally in a horizontal direction; a dome (304) located above and connected to the floor (302), the dome (304) having a main ridge (306) extending perpendicular to the housing axis; a partition assembly (311) located above and connected to the floor (302) and the dome (304); first and second side portions (332, 334) disposed on opposite sides of the floor (302) and on opposite sides of the partition assembly (311), the first and second side portions (332, 334) being located above the floor (302) and connected to the floor (302) and the dome (304); wherein the baffle assembly (214) is configured to form at least four flow channels, each of the flow channels having an inlet (401) and an outlet (402) such that fluid entering the condenser is able to flow from the inlet (401) towards the outlet (402); wherein, in a direction along the housing axis and from the inlet (401) towards the outlet (402), a cross-sectional area of each of the flow channels perpendicular to the housing axis gradually increases.

2. The condenser of claim 1, wherein: the inlet (401) is closer to the main ridge (306) than the outlet (402).

3. The condenser of claim 1, wherein: the partition assembly (311), the first side portion (332), and the second side portion (334) are configured such that: in a horizontal cross-section of the baffle assembly (214), in a direction along the housing axis and from the inlet (401) towards the outlet (402), the first side portion (332) and the partition assembly (311) gradually move away from each other, and the second side portion (334) and the partition assembly (311) gradually move away from each other.

4. The condenser of claim 1, wherein: in a direction along the housing axis and from the inlet (401) towards the outlet (402), a height of the partition assembly (311) gradually decreases.

5. The condenser of claim 1, wherein: a height of the partition assembly (311) is less than a height of the main ridge (306).

6. The condenser of claim 1, wherein: The partition assembly (311) comprises a first partition (312) and a second partition (314), the first partition (312) and the second partition (314) are arranged on opposite sides of the main ridge (306) and extend along the shell axis to form; The first partition (312) and the second partition (314) are symmetrically arranged about the main ridge (306), the first partition (312) can separate the upper space of the bottom plate (302) and the arch part (304) into first and second sub-flow channels (411) and (412) independent of each other, and the second partition (314) can separate the upper space of the bottom plate (302) and the arch part (304) into third and fourth sub-flow channels (413) and (414) independent of each other.

7. The condenser of claim 1, further comprising: The width LI of the main ridge (306), the distance L2 between the first side (332) and the second side (334) at the outlet of the shunt channel, the bottom width L3 of the arch (304), the distance L4 between the first side (332) and the second side (334) at the outlet of the shunt channel, and the widest width L5 of the divider assembly (311) satisfy:

8. The condenser of claim 1, wherein An inlet pipe (114) connected with the shell (104), and a part of the inlet pipe (114) extends into the cavity (204); The inlet pipe (114) has a pipe axis, the anti-collision assembly (214) has a center line, and the center line passes through and is perpendicular to the main ridge (306); The pipe axis coincides with the center line.

9. The condenser of claim 8, further comprising: The outlet section (500) of the inlet pipe (114) is a gradually expanding pipe, the inlet (502) of the outlet section (500) is circular, and the outlet (504) of the outlet section (500) is elliptical; The ellipse has a major radius and a minor radius perpendicular to each other, and the extension direction of the minor radius is consistent with the shell axis.

10. The condenser of claim 9, further comprising: ​ The radius r1 of the inlet (502) of the outlet section (500), the long radius r2 and the short radius r3 of the outlet (504) of the outlet section (500), and the height H of the outlet section (500) satisfy:

Images