Liquid distributor and air conditioning system
Patent Information
- Application Number
- CN202522175278.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-10-14
AI Technical Summary
然而，在相关技术中，经小孔径节流通道节流后的流体直接流向分液器的多个出口，导致流体在节流后流入多个出口时存在流道截面突变的现象，从而诱发局部湍流和涡流，导致制冷剂分配不均
本公开提供的分液器，由于节流环的第二通道包括节流段和第一扩口段，节流段与第一扩口段的直径较小的一端连接，第一扩口段的直径较大的端口位于节流环的出口端的端面，同时节流环的出口端端面与分液器本体的环形限位面抵接或重合，且第一扩口段的直径较大的端口的边缘与环形限位面的进口的边缘对齐，同时，第一扩口段的内壁与第一通道的内壁平滑过渡，保证流体（例如制冷剂）经过节流段后，进入第一扩口段，再从第一扩口段进入多个第一通道的过程中不会经过截面突变的流道，降低出现湍流或涡流的风险，提高了进入各第一通道的制冷剂气液两相流的分配均匀性，同时有助于降低气动噪音；当制冷剂流经第一扩口段时能够实现平缓减压，减少气液两相流的剧烈扰动，有助于稳定各第一通道的流量分配。
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Figure CN224719002U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of air conditioning technology, and in particular to a liquid distributor and an air conditioning system. Background Technology
[0002] In related technologies, to achieve the throttling effect on fluids (such as refrigerants), a throttling ring is typically installed within the distributor body. This throttling ring forms a small-diameter throttling channel to reduce pressure and provide initial regulation of the fluid. However, in these technologies, the fluid, after being throttled through the small-diameter throttling channel, flows directly to multiple outlets of the distributor. This causes abrupt changes in the flow channel cross-section as the fluid flows into these outlets after throttling, inducing localized turbulence and eddies, resulting in uneven refrigerant distribution. Utility Model Content
[0003] The purpose of this disclosure is to provide a distributor and an air conditioning system to improve the uniformity of refrigerant distribution.
[0004] To achieve the above objectives, this disclosure provides a liquid dispenser, including a dispenser body and a throttling ring; the dispenser body is provided with an annular limiting surface and a plurality of first channels, the annular limiting surface having an inlet, and the plurality of first channels communicating with the inlet; the throttling ring is connected to the dispenser body, the outlet end face of the throttling ring abutting or overlapping with the annular limiting surface, the throttling ring having a second channel, the second channel including a throttling section and a first flared section, the throttling section being connected to the smaller diameter end of the first flared section, the larger diameter port of the first flared section being located at the outlet end face of the throttling ring, the edge of the larger diameter port of the first flared section being aligned with the edge of the inlet, and the inner wall of the first flared section smoothly transitioning with the inner wall of the first channel.
[0005] In one embodiment of this disclosure, the first flared section has a hollow frustum-shaped structure, and the angle between the inner wall of the first flared section and the axis of the first flared section is equal to the angle between the extension direction of the first channel and the axis of the dispensing body.
[0006] In one embodiment of this disclosure, within a defined plane, the inner wall of the first flared section is collinear with the inner wall of the first channel away from the axis of the dispenser body, wherein the defined plane passes through the axis of the dispenser body and the axis of the first channel.
[0007] In one embodiment of this disclosure, the second channel further includes a second flared section, which is connected to the end of the throttling section away from the first flared section, and the larger diameter end of the second flared section faces the inlet end of the throttling ring.
[0008] In one embodiment of this disclosure, the second flared section has a hollow frustum-shaped structure, and the angle between the inner wall of the second flared section and the axis of the second flared section is not less than the angle between the inner wall of the first flared section and the axis of the first flared section.
[0009] In one embodiment of this disclosure, the diameter of the smaller end of both the first flared section and the second flared section is equal to the diameter of the throttling section.
[0010] In one embodiment of this disclosure, the second channel further includes a connecting segment located at the end of the second flared segment away from the first flared segment, the diameter of the connecting segment being equal to the diameter of the larger end of the second flared segment, and the connecting segment being used to connect to the inlet pipe.
[0011] In one embodiment of this disclosure, the diameter of the larger diameter port of the first flared section is equal to the diameter of the inlet.
[0012] In one embodiment of this disclosure, the dispenser body is provided with a receiving cavity, the receiving cavity being located on the side of the annular limiting surface away from the first channel, and the throttling ring being at least partially located within the receiving cavity.
[0013] In one embodiment of this disclosure, the liquid dispenser body and the throttling ring are integrally formed, and the annular limiting surface coincides with the end face of the outlet end of the throttling ring.
[0014] For the purposes described above, this disclosure also provides an air conditioning system including the liquid distributor described in any of the above embodiments.
[0015] The main beneficial effects of this disclosure are: The liquid distributor provided in this disclosure has a second channel of throttling ring that includes a throttling section and a first flared section. The throttling section is connected to the smaller diameter end of the first flared section, and the larger diameter port of the first flared section is located at the end face of the outlet end of the throttling ring. At the same time, the end face of the outlet end of the throttling ring abuts or coincides with the annular limiting surface of the liquid distributor body, and the edge of the larger diameter port of the first flared section is aligned with the edge of the inlet of the annular limiting surface. Meanwhile, the inner wall of the first flared section smoothly transitions with the inner wall of the first channel, ensuring that the fluid (e.g., refrigerant) does not pass through a flow channel with abrupt changes in cross-section when it enters the first flared section after passing through the throttling section and then enters multiple first channels from the first flared section. This reduces the risk of turbulence or eddies, improves the uniformity of the distribution of the refrigerant gas-liquid two-phase flow entering each first channel, and also helps to reduce aerodynamic noise. When the refrigerant flows through the first flared section, it can achieve gentle pressure reduction, reduce the violent disturbance of the gas-liquid two-phase flow, and help stabilize the flow distribution of each first channel. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of the liquid dispenser provided in the embodiments of this disclosure; Figure 2 A front view of a dispenser provided in an embodiment of this disclosure; Figure 3 for Figure 2 A sectional view along line AA; Figure 4 This is a schematic diagram of the structure of the dispenser body in the dispenser provided in the embodiments of this disclosure; Figure 5 for Figure 4 The front view of the dispenser body is shown; Figure 6 for Figure 5 A cross-sectional view along line BB; Figure 7 A front view of the throttling ring in the dispenser provided in an embodiment of this disclosure; Figure 8 for Figure 7 A cross-sectional view along the CC line; Figure 9 This is a schematic diagram of the structure of the liquid dispenser and the inlet pipe provided in an embodiment of this disclosure; Figure 10 for Figure 9 A cross-sectional view along the EE line; Figure 11 Another schematic diagram of the liquid dispenser provided in an embodiment of this disclosure (cross-sectional view in a defined plane); Figure 12 for Figure 11 A cross-sectional view of the throttling ring in the dispenser is shown.
[0018] The annotations in the attached figures are explained as follows: 10. Dispenser body; 11. Annular limiting surface; 111. Inlet; 12. First channel; 121. First intersection line; 122. Second intersection line; 13. Receiving cavity; 20. Throttling ring; 201. End face; 21. Second channel; 211. First flared section; 2111. Third intersection line; 2112. Fourth intersection line; 212. Second flared section; 213. Throttling section; 214. Connecting section; 30. Inlet pipe. Detailed Implementation
[0019] The technical solutions of this disclosure will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this disclosure, not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.
[0020] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0022] See Figures 1 to 12 As shown, this embodiment provides a liquid dispenser, including a dispenser body 10 and a throttling ring 20. The dispenser body 10 is provided with an annular limiting surface 11 and a plurality of first channels 12. The annular limiting surface 11 has an inlet 111, and the plurality of first channels 12 are all connected to the inlet 111. The throttling ring 20 is connected to the dispenser body 10. The end face 201 of the outlet end of the throttling ring 20 abuts against the annular limiting surface 11. The throttling ring 20 has a second channel 21. The second channel 21 includes a throttling section 213 and a first flared section 211. The throttling section 213 is connected to the end with the smaller diameter of the first flared section 211. The port with the larger diameter of the first flared section 211 is located at the end face 201 of the outlet end of the throttling ring 20. The edge of the port with the larger diameter of the first flared section 211 is aligned with the edge of the inlet 111. The inner wall of the first flared section 211 smoothly transitions with the inner wall of the first channel 12.
[0023] The dispenser provided in this embodiment has a throttling ring 20 whose second channel 21 includes a throttling section 213 and a first flared section 211. The throttling section 213 is connected to the smaller diameter end of the first flared section 211, and the larger diameter port of the first flared section 211 is located at the end face of the outlet end of the throttling ring 20. Simultaneously, the outlet end face 201 of the throttling ring 20 abuts against the annular limiting surface 11 of the dispenser body, and the edge of the larger diameter port of the first flared section 211 is aligned with the edge of the inlet 111 of the annular limiting surface. Furthermore, the inner wall of the first flared section 211 is aligned with the first... The smooth transition of the inner wall of channel 12 ensures that the fluid (e.g., refrigerant) enters the first flared section 211 after passing through the throttling section 213, and then enters the multiple first channels 12 from the first flared section 211 without passing through a flow channel with abrupt changes in cross-section. This reduces the risk of turbulence or eddies, improves the uniformity of the refrigerant gas-liquid two-phase flow distribution entering each first channel 12, and also helps to reduce aerodynamic noise. When the refrigerant flows through the first flared section 211, it can achieve gentle pressure reduction, reduce the violent disturbance of the gas-liquid two-phase flow, and help stabilize the flow distribution of each first channel 12.
[0024] It should be understood that the smaller diameter end of the throttling section 213 and the first flared section 211 can be directly connected or indirectly connected.
[0025] See Figure 3 As shown, the distributor body 10 has an inlet end and an outlet end. A throttling ring 20 is installed at the inlet end, and the end face 201 of the outlet end of the throttling ring 20 abuts against the annular limiting surface 11. The end face 201 and the annular limiting surface 11 can be in close contact (e.g., fully or partially contacted) to reduce the possibility of refrigerant entering between the end face 201 and the annular limiting surface 11. The axis of the annular limiting surface 11 is the axis of the distributor body 10 (as shown in the diagram). Figure 3 (represented by dashed lines in the figure) One end of each of the multiple first channels 12 is connected to the inlet 111 on the annular limiting surface 11. Each first channel 12 extends from the inlet 111 to the end face of the outlet end of the dispenser body 10 and penetrates the end face. The extension direction of the first channel 12 is set at an angle to the axis of the dispenser body 10. Each first channel 12 is radially distributed.
[0026] See Figure 5 and Figure 7 As shown, the diameter of inlet 111 is D1, and the diameter of the larger port of the first flared section 211 is D2, and D1 and D2 are equal.
[0027] See Figure 7 and Figure 8 As shown, the throttle ring 20 has a cylindrical structure and an axis (with...). Figure 8(represented by the dashed line in the figure), the axis of the throttling ring 20 coincides with the axis of the liquid dispenser body 10; the second channel 21 passes through both ends of the cylindrical structure along the axial direction, and the axis of the second channel 21 is the axis of the throttling ring 20.
[0028] In one embodiment, see Figure 3 As shown, the first flared section 211 has a hollow frustum structure. The angle α between the inner wall of the first flared section 211 and the axis of the first flared section 211 is equal to the angle β between the extension direction of the first channel 12 and the axis of the dispensing body 10.
[0029] The axis of the first flared section 211 is the same as the axis of the second channel 21. The angle α between the inner wall of the first flared section 211 and its axis is also the angle between the generatrix of the hollow frustum-shaped structure and its axis. When α and β are equal, a smooth transition between the inner wall of the first flared section 211 and the inner wall of the first channel 12 is ensured, guaranteeing a smooth connection between them. When the refrigerant flows from the first flared section 211 to the first channel 12, the flow direction does not change abruptly, reducing the risk of turbulence or eddies. The gas-liquid mixing state of the refrigerant is maintained, thereby improving the uniformity of distribution. Simultaneously, it also reduces pressure loss and energy consumption, improving system operating efficiency.
[0030] In one embodiment, within a set plane, the inner wall of the first flared section 211 is collinear with the inner wall of the first channel 12 away from the axis of the dispenser body 10, wherein the set plane passes through the axis of the dispenser body 10 and the axis of the first channel 12.
[0031] See Figure 2 and Figure 3 As shown, the dispenser is sectioned along line AA, and the plane containing the resulting cross-section is the designated plane. The first channel 12 intersects the designated plane, resulting in two lines of intersection: the first line 121 and the second line 122. Along the radial direction of the dispenser body 10, the first line 121 is closer to the axis of the dispenser body 10, and the second line 122 is farther from the axis of the dispenser body 10. The first flared section 211 intersects the designated plane, resulting in two lines of intersection: the third line 2111 and the fourth line 2112. The third line 2111 and the fourth line 2112 are symmetrically arranged along the axis of the dispenser body 10 (within a certain range). Figure 3 The two sides of the dotted line (represented by the dotted line in the diagram). Within the defined plane, the inner wall of the first flared section 211 is collinear with the inner wall of the first channel 12, which is a channel intersecting the defined plane, on the axis away from the dispensing body 10. For example, see... Figure 3 As shown, only the first channel 12 intersects with the set plane, and the second intersection line 122 and the third intersection line 2111 are collinear.
[0032] In one embodiment, see Figures 8 to 10 As shown, the second channel 21 also includes a second flared section 212, which is connected to the end of the throttling section 213 away from the first flared section 211. The larger diameter end of the second flared section 212 faces the inlet end of the throttling ring 20. In use, the inlet of the liquid inlet pipe 30 of the throttling device can be aligned with the larger diameter end of the second flared section 212. This not only stops and limits the position of the liquid inlet pipe 30, but also, as the refrigerant passes through the second flared section 212 from the liquid inlet pipe 30, the cross-sectional size of the flow channel gradually decreases, allowing the refrigerant to accelerate smoothly, which helps reduce fluid disturbance and can mix the gas-liquid two-phase flow.
[0033] In one embodiment, see Figure 8 As shown, the diameter of the smaller end of the first flared section 211 and the second flared section 212 is equal to the diameter of the throttling section 213.
[0034] In one embodiment, see Figure 8 As shown, the second flared section 212 has a hollow frustum structure, and the angle γ between the inner wall of the second flared section 212 and the axis of the second flared section 212 is not less than the angle α between the inner wall of the first flared section 211 and the axis of the first flared section 211.
[0035] The angle γ between the inner wall of the second flared section 212 and the axis of the second flared section 212 refers to the angle between the generatrix of the hollow frustum structure and the axis of the hollow frustum structure.
[0036] In some embodiments, the angle θ between the inner wall of the second flared section 212 and its axis is equal to the angle α between the inner wall of the first flared section 211 and its axis. This allows the refrigerant to be gently accelerated through the second flared section 212 upon entering the distributor, achieving uniform mixing and reducing the risk of additional turbulence and disturbance. The refrigerant then passes through the throttling section 213 and exits from the first flared section 211. Because the angle θ between the inner wall of the second flared section 212 and its axis is equal to the angle α between the inner wall of the first flared section 211 and its axis, the refrigerant enters the first channel 12 in the same gentle manner, effectively maintaining the achieved uniform mixing state and reducing the risk of gas-liquid re-separation due to abrupt changes in cross-section. When the refrigerant is distributed to multiple first channels 12, each channel receives almost identical flow rates and gas-liquid mixing ratios, thus achieving optimal distribution uniformity.
[0037] In some embodiments, the angle θ between the inner wall of the second flared section 212 and the axis of the second flared section 212 is greater than the angle α between the inner wall of the first flared section 211 and the axis of the first flared section 211, which can save materials and reduce production costs.
[0038] In one embodiment, see Figure 8 As shown, the second channel 21 also includes a connecting section 214, which is located at the end of the second flared section 212 away from the first flared section 211. The diameter of the connecting section 214 is equal to the diameter of the larger end of the second flared section 212. The connecting section 214 is used to connect to the inlet pipe 30.
[0039] When using, please refer to Figure 10 As shown, the liquid inlet pipe 30 can be inserted into the connecting section 214, and the liquid inlet pipe 30 and the connecting section 214 can be welded together.
[0040] In some embodiments, see Figure 6 As shown, the dispenser body 10 is provided with a receiving cavity 13, which is located on the side of the annular limiting surface 11 away from the first channel 12. The throttling ring 20 is at least partially located in the receiving cavity 13. The throttling ring 20 is manufactured separately from the dispenser body 10, which facilitates the selection or replacement of the throttling ring 20. For example, the size of the throttling section 213 can be selected according to actual needs.
[0041] See Figure 6 As shown, the annular end face of the receiving cavity is chamfered to facilitate the installation of the throttling ring inside the receiving cavity.
[0042] In some embodiments, see Figure 10 As shown, a portion of the throttling ring 20 is located inside the receiving cavity 13, and another portion is located outside the receiving cavity 13. The throttling ring 20 can be welded to the cavity wall of the receiving cavity 13 to avoid abnormal noise caused by the throttling ring 20 shaking inside the receiving cavity 13, and also to reduce maintenance costs caused by vibration.
[0043] In other embodiments, see Figure 11 As shown, the throttling ring 20 is entirely located within the receiving cavity 13. At this time, the inlet pipe 30 also extends into the receiving cavity 13 and is welded to the cavity wall of the receiving cavity 13.
[0044] In these other embodiments, see Figure 12 As shown, the throttling ring 20 may also be without a connecting section to save materials.
[0045] In other embodiments, the distributor body 10 and the throttling ring 20 can also be integrally formed, with the annular limiting surface 11 coinciding with the end face of the outlet end of the throttling ring 20. That is, the annular limiting surface 11 and the end face of the outlet end of the throttling ring 20 can be fused together by casting or other methods, with no interface between them. By integrally forming the distributor body 10 and the throttling ring 20, the risk of refrigerant leakage can be further reduced.
[0046] This embodiment provides an air conditioning system, including the liquid distributor provided in any of the above embodiments.
[0047] In some embodiments, the air conditioning system also includes structures such as a compressor, an evaporator, and a condenser. Their connection relationships and working principles are understandable to those skilled in the art and are well-known and easy to implement. Therefore, they will not be described in detail in this embodiment.
[0048] The air conditioning system provided in this embodiment, by using the distributor provided in any of the above embodiments, can ensure that the refrigerant does not pass through a flow channel with abrupt cross-section changes during the process of entering multiple first channels 12 from the first flared section 211 of the throttling ring 20, reducing the risk of turbulence or eddies, improving the uniformity of the distribution of the refrigerant gas-liquid two-phase flow entering each first channel 12, and at the same time helping to reduce aerodynamic noise and saving additional sound insulation costs; when the refrigerant flows through the first flared section 211, it can achieve smooth pressure reduction, reduce the violent disturbance of the gas-liquid two-phase flow, help stabilize the flow distribution of each first channel 12, and improve the heat exchange efficiency of the evaporator (or condenser).
[0049] In addition, by suppressing turbulent pulsation and reducing turbulent impact, the vibration risk of various components in the system is reduced, thereby reducing fatigue damage to the distributor and related connecting parts caused by long-term vibration, extending the service life of key components, reducing the pressure loss of refrigerant through the distributor, significantly reducing system energy consumption and the risk of local dry burning or liquid slugging of the evaporator (or condenser), while making the surface temperature distribution of the evaporator (or condenser) more uniform.
[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure.
Claims
1. A liquid dispenser, characterized in that, The device includes a dispenser body (10) and a throttling ring (20). The dispenser body (10) is provided with an annular limiting surface (11) and multiple first channels (12). The annular limiting surface (11) has an inlet (111), and the multiple first channels (12) are all connected to the inlet (111). The throttling ring (20) is connected to the dispenser body (10), and the outlet end face of the throttling ring (20) abuts or overlaps with the annular limiting surface (11). The throttling ring (20) has a second channel (21). The second channel (21) includes a throttling section (213) and a first flared section (211). The throttling section (213) is connected to the smaller diameter end of the first flared section (211). The larger diameter port of the first flared section (211) is located at the outlet end face of the throttling ring (20). The edge of the larger diameter port of the first flared section (211) is aligned with the edge of the inlet (111). The inner wall of the first flared section (211) smoothly transitions with the inner wall of the first channel (12).
2. The dispenser according to claim 1, characterized in that, The first flared section (211) has a hollow frustum structure. The angle between the inner wall of the first flared section (211) and the axis of the first flared section (211) is equal to the angle between the extension direction of the first channel (12) and the axis of the liquid dispenser body (10).
3. The dispenser according to claim 1, characterized in that, Within the defined plane, the inner wall of the first flared section (211) is collinear with the inner wall of the first channel (12) away from the axis of the dispenser body (10), wherein the defined plane passes through the axis of the dispenser body (10) and the axis of the first channel (12).
4. The dispenser according to claim 1, characterized in that, The second channel (21) also includes a second flared section (212), which is connected to the end of the throttling section (213) away from the first flared section (211), and the larger diameter end of the second flared section (212) faces the inlet end of the throttling ring (20).
5. The dispenser according to claim 4, characterized in that, The second flared section (212) has a hollow frustum structure. The angle between the inner wall of the second flared section (212) and the axis of the second flared section (212) is not less than the angle between the inner wall of the first flared section (211) and the axis of the first flared section (211).
6. The dispenser according to claim 4, characterized in that, The diameter of the smaller end of the first flared section (211) and the second flared section (212) is equal to the diameter of the throttling section (213).
7. The dispenser according to claim 4, characterized in that, The second channel (21) further includes a connecting section (214), which is located at the end of the second flared section (212) away from the first flared section (211). The diameter of the connecting section (214) is equal to the diameter of the larger end of the second flared section (212). The connecting section (214) is used to connect to the inlet pipe (30).
8. The dispenser according to claim 1, characterized in that, The diameter of the larger port of the first flared section (211) is equal to the diameter of the inlet (111).
9. The dispenser according to any one of claims 1 to 8, characterized in that, The liquid dispenser body (10) is provided with a receiving cavity (13), which is located on the side of the annular limiting surface (11) away from the first channel (12), and the throttling ring (20) is at least partially located in the receiving cavity (13).
10. The dispenser according to any one of claims 1 to 8, characterized in that, The liquid dispenser body (10) and the throttling ring (20) are integrally formed, and the annular limiting surface (11) coincides with the end face of the outlet end of the throttling ring (20).
11. An air conditioning system, characterized in that, The dispenser comprising any one of claims 1 to 10.