Mixed flow device, refrigerant line, and home appliance

Abstract

This disclosure relates to a mixing device, a refrigerant pipeline, and a household appliance. The mixing device includes a sleeve and an orifice plate. The orifice plate is fitted into the sleeve in a shape suitable for the inside. The orifice plate includes a solid portion and an open portion. The open portion has multiple through holes. The solid portion is located in the middle region of the orifice plate, and the open portion surrounds the solid portion. The design of the solid portion forces the fluid medium to flow entirely through the through holes surrounding the open portion, forming a more uniform radial velocity distribution and effectively avoiding the axial flow dominance caused by a high-speed central jet. The impact breaking surface formed by the orifice plate reduces the resistance of the fluid, allowing the air bubbles in the fluid to mix thoroughly. Large bubbles break into smaller bubbles after passing through the through holes, mixing thoroughly with the liquid fluid. This ensures thorough mixing of the gas and liquid phases in the pipeline, resulting in smooth flow of the fluid medium and improving or eliminating abnormal flow noise.

Description

Technical Field

[0001] This disclosure relates to the field of fluid flow path technology, and in particular to a mixing device, refrigerant pipeline and household appliance. Background Technology

[0002] Fluid piping is widely used in various products, such as in thermal management systems and refrigeration systems. In related technologies, when the fluid medium in a fluid piping is two-phase, there are cavitation bubbles formed by the gaseous medium in the middle of the two-phase mixture, surrounded by the liquid medium. When the cavitation bubbles burst, they produce sound, thus causing noise. Utility Model Content

[0003] To overcome the problems existing in related technologies, this disclosure provides a mixing device, refrigerant piping, and household appliances.

[0004] According to a first aspect of the present disclosure, a mixing device is provided, including a sleeve and an orifice plate, the orifice plate being adapted to be internally connected within the sleeve, wherein the orifice plate includes a solid portion and an open portion, the open portion having a plurality of through holes, the solid portion being located in the middle region of the orifice plate, and the open portion being disposed around the solid portion.

[0005] The solid design forces the fluid medium to flow entirely through the perforations surrounding the solid portion, resulting in a more uniform radial velocity distribution and effectively preventing axial flow dominance caused by high-speed central jets. The impact-breaking surface formed by the perforated plate reduces fluid resistance, allowing for thorough mixing of air bubbles. Large bubbles break into smaller bubbles after passing through the perforations, mixing fully with the liquid fluid. This ensures thorough mixing of the gas and liquid phases in the pipeline, resulting in smooth fluid flow, improving or eliminating abnormal flow noise, and enhancing the user experience.

[0006] In some possible implementations, the distribution density of the vias on the opening is configured to decrease from the center of the perforated plate toward the outer periphery.

[0007] The density of the vias in the middle area is set to be relatively high, while the density of the vias closer to the outer perimeter is relatively low, so that the fluid flowing out of the orifice plate has a uniform flow rate, thus avoiding vibration or noise.

[0008] In some possible implementations, the opening portion is provided with multiple sets of through holes surrounding the solid portion, the multiple sets of through holes being arranged radially on the perforated plate, each set of through holes including multiple through holes arranged at radial intervals along the perforated plate.

[0009] The opening section is equipped with multiple sets of through holes arranged radially around the solid part, which can optimize the fluid path and allow the fluid to flow out from multiple radial directions, forming a regular flow. This can more evenly disperse the fluid, avoid localized higher impact forces on the bubbles, and allow the bubbles to burst in a relatively mild environment, thereby effectively reducing the noise generated by bubble bursting.

[0010] In some possible implementations, both the perforated plate and the solid portion are constructed to be circular, and the ratio of the diameter of the solid portion to the diameter of the perforated plate is 0.3 to 0.5.

[0011] The ratio of the diameter of the solid part to the diameter of the orifice plate is 0.3 to 0.5 to avoid axial dominance and ensure the outflow efficiency of fluid through the orifice 221.

[0012] In some possible implementations, the diameter of the solid part is 5mm to 7mm, and the diameter of the perforated plate is 12 to 16mm, in order to ensure the effect of noise reduction.

[0013] In some possible implementations, the aperture of the via is 2mm to 4mm to ensure smooth fluid flow and eliminate cavitation, thereby reducing noise.

[0014] In some possible implementations, the sleeve includes a cylindrical section and a tapered section, the orifice plate being adapted to be internally fitted within the cylindrical section, and the tapered section being connected to the end of the cylindrical section and configured to taper away from the cylindrical section.

[0015] By setting a conical section, the fluid can be guided through the inclined inner wall of the conical section first, reducing the flow separation phenomenon and the degree of turbulence during the fluid flow process. Then, the fluid passes through the orifice plate, which allows the bubbles to mix fully. After passing through the orifice plate, the large bubbles break into small bubbles and mix fully with the liquid fluid. This ensures that the gas and liquid phases in the refrigerant pipeline are fully mixed, achieving the purpose of smooth fluid flow. This improves or eliminates fluid flow noise and enhances the user's experience of using the product.

[0016] In some possible implementations, the cone angle of the conical segment is 30° to 40° to reduce the risk of fluid separation and increase the low-frequency noise reduction effect.

[0017] In some possible implementations, the cylindrical segment is connected to the tapered segment at both ends.

[0018] The tapered section at the inlet end guides the fluid, while the tapered section at the outlet end reduces the flow diameter of the fluid, allowing it to flow smoothly into the smaller diameter refrigerant pipe.

[0019] In some possible implementations, the sleeve includes a transition section connected to the end of the tapered section away from the cylindrical section, the transition section being configured with a rounded transition.

[0020] When the fluid flows out of the conical section, it can make a smooth transition through the transition section to reduce the collision phenomenon of the fluid in the region of structural change, and at the same time generate a pressure difference to accelerate the fluid flow, which can effectively suppress the generation of turbulence and eddies.

[0021] According to a second aspect of the present disclosure, a refrigerant pipeline is provided, including a mixing device provided in the present disclosure, the mixing device being disposed between the pipes of the refrigerant pipeline.

[0022] According to a second aspect of the present disclosure, a household appliance is provided, including a refrigerant pipeline provided in the present disclosure.

[0023] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: When the fluid medium passes through the mixing device in the embodiments of this disclosure, the solid part design forces the fluid medium to flow entirely through the perforations surrounding the openings on the outer periphery of the solid part, forming a more uniform radial velocity distribution and effectively avoiding the axial flow dominance caused by the high-speed jet in the center. This perforated plate can enhance the turbulent shearing effect of the fluid, improving the mixing uniformity of fluids with different densities or viscosities. The impact breaking surface formed by the perforated plate reduces the resistance of the fluid, allowing the bubbles in the fluid to mix thoroughly. Large bubbles break into smaller bubbles after passing through the perforations, mixing thoroughly with the liquid fluid, thereby ensuring thorough mixing of the gas and liquid phases in the pipeline, resulting in smooth flow of the fluid medium. This improves or eliminates abnormal flow noise of the fluid medium, enhancing the user's experience with the product.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0026] Figure 1 This is a partial structural schematic diagram of a refrigerant pipeline according to an exemplary embodiment;

[0027] Figure 2 This is a schematic diagram of an orifice plate according to an exemplary embodiment;

[0028] Figure 3 This is a schematic diagram illustrating various states of fluid in a refrigerant pipeline according to an exemplary embodiment.

[0029] Explanation of reference numerals in the attached figures

[0030] 100-Mixing device, 10-Sleeve, 11-Cylindrical section, 12-Conical section, 13-Transition section, 20-Orifice plate, 21-Solid part, 22-Opening part, 221-Through hole, 200-Pipe. Detailed Implementation

[0031] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0032] Fluid piping is widely used in various products, such as thermal management systems and refrigeration systems. In related technologies, when the fluid medium in a fluid piping system is two-phase, the mixture consists of gaseous bubbles surrounded by liquid. The bursting of these bubbles produces sound, thus generating noise. For example, when refrigerant flows through refrigerator pipes, especially when it is ejected from the capillary tube to the evaporator inlet pipe section, flow noise is generated.

[0033] Therefore, this disclosure provides a mixing device, referring to... Figure 1 and Figure 2 The mixing device includes a sleeve 10 and an orifice plate 20. The orifice plate 20 is fitted inside the sleeve 10 in a shape that fits the sleeve. That is, the outer wall of the orifice plate 20 is connected to the inner wall of the sleeve 10, so that the fluid can pass through the orifice plate 20 completely.

[0034] When orifice plates 20 are opened in a dispersed manner across the entire area, a phenomenon of axial flow dominance caused by a high-speed central jet will occur in the central region. This phenomenon presents the following problems: Since the fluid mainly flows axially, the radial flow is weak, resulting in poor gas-liquid two-phase mixing in the radial direction. This leads to uneven distribution of matter, heat, or momentum in the radial direction. When axial flow dominates, the high-speed axial flow may make the flow unstable, easily triggering various flow instability phenomena, such as the formation of eddies and turbulence, and even flow separation. Near the pipe wall, due to the dominance of axial flow, the velocity gradient within the boundary layer is large, which easily causes the boundary layer to thicken and separate. Boundary layer separation forms a backflow zone, leading to a decrease in local pressure, increased flow resistance, and may also cause vibration and noise problems.

[0035] To avoid axial flow dominance, in this embodiment, the orifice plate 20 includes a solid portion 21 and an open portion 22. The open portion 22 has multiple through holes 221, allowing fluid to flow through the through holes 221 but preventing flow through the solid portion 21 which has no holes. The solid portion 21 is located in the middle region of the orifice plate 20, such as... Figure 1 The area outlined by the dashed line is drawn to represent the solid portion 21 and does not represent any actual structure. The perforated plate 20 can be a single piece. The opening portion 22 is provided around the solid portion 21, meaning that there is no opening in the middle area of ​​the perforated plate 20, but openings are made in the circumferential area near the outer periphery.

[0036] Through the above technical solution, when the fluid medium passes through the mixing device in this embodiment, the design of the solid part 21 forces the fluid medium to flow entirely through the through-holes 221 on the openings 22 surrounding the solid part 21, forming a more uniform radial velocity distribution and effectively avoiding the axial flow dominance caused by the high-speed jet in the center. The orifice plate 20 can enhance the turbulent shearing effect of the fluid, improving the mixing uniformity of fluids with different densities or viscosities. The impact breaking surface formed by the orifice plate 20 reduces the resistance of the fluid, allowing the bubbles in the fluid to mix thoroughly. Large bubbles break into smaller bubbles after passing through the through-holes 221, mixing thoroughly with the liquid fluid, thereby ensuring thorough mixing of the gas and liquid phases in the pipeline. This results in smooth flow of the fluid medium, improving or eliminating abnormal flow noise and enhancing the user's experience with the product.

[0037] In this embodiment of the disclosure, reference is made to Figure 2 The distribution density of the vias 221 on the opening portion 22 can be configured to decrease from the middle to the outer periphery of the orifice plate 20. Since the fluid velocity is faster in the middle region and slower closer to the outer periphery, in this embodiment of the present disclosure, the density of the vias 221 in the middle region is set to be larger, and the density of the vias 221 closer to the outer periphery is smaller, so that the fluid velocity flowing out of the orifice plate 2 is uniform, thereby avoiding vibration or noise.

[0038] Reference Figure 2 The opening portion 22 can be provided with multiple sets of through holes 221 arranged around the solid portion 21. The multiple sets of through holes 221 are arranged radially on the orifice plate 20. The multiple sets of through holes 221 arranged radially around the solid portion 21 in the opening portion 22 can optimize the fluid path, allowing the fluid to flow out from multiple radial directions and form a regular flow. Compared with the method of randomly distributed through holes 221, this method can more evenly disperse the fluid, avoid local higher impact force on bubbles, and allow bubbles to break in a relatively mild environment, thereby effectively reducing the noise generated by bubble breakage.

[0039] When the orifice plate 20 is constructed in a circular shape, each group of vias 221 may include multiple vias 221 arranged radially spaced along the orifice plate 20. For example... Figure 2 As shown, multiple sets of vias 221 are radially distributed along the circumference of the solid part 21. On each radial path, there is a set of vias 221. Each set of vias 221 contains multiple vias 221, such as four vias in the figure. These vias 221 are arranged radially at intervals to adapt to the changing trend of fluid flow rate, that is, the fluid flow rate gradually decreases from the inside to the outside along the radial direction.

[0040] In this embodiment, the ratio of the diameter of the solid portion 21 to the diameter of the orifice plate 20 can be 0.3 to 0.5 to avoid axial dominance and ensure the outflow efficiency of fluid through the orifice 221. If this ratio is too small, the proportion of the solid portion 21 is too small, resulting in a still significant axial dominance, which is not conducive to noise elimination. If this ratio is too large, the proportion of the solid portion 21 is too large and the proportion of the orifice 22 is too small, causing the solid portion 21 to obstruct the fluid excessively, while the orifice 22 cannot allow the fluid to flow quickly, resulting in high fluid flow resistance and noise.

[0041] In one embodiment, the diameter of the solid portion 21 can be 5mm to 7mm, and the diameter of the orifice plate 20 can be 12mm to 16mm to ensure noise reduction. For example, if the diameter of the solid portion is 6mm and the diameter of the orifice plate 20 is 14mm, extensive testing has shown that when the diameter of the orifice plate 20 is 14mm and the diameter of the solid portion is 6mm, noise can be reduced to the maximum extent.

[0042] In this embodiment, the aperture of the via 221 can be 2mm to 4mm to ensure smooth fluid flow and eliminate cavitation, thereby reducing noise. If the via 221 is too small, it will increase fluid flow resistance, leading to unstable operation and increased noise. If the via 221 is too large, it will not be able to effectively eliminate cavitation, and the bursting of cavitation bubbles will generate noise.

[0043] In this embodiment, the wall thickness of the sleeve 10 and the thickness of the perforated plate 20 can both be 0.5mm to 2mm, for example, 1mm, to ensure sufficient structural strength.

[0044] Reference Figure 1As shown, the sleeve 10 in this embodiment may include a cylindrical section 11 and a conical section 12. An orifice plate 20 is fitted internally into the cylindrical section 11, and the conical section 12 is connected to the end of the cylindrical section 11 and configured to taper away from the cylindrical section 11. For example, the orifice plate 20 may be fitted internally into the end of the cylindrical section 11 near the conical section 12. During fluid flow, the combined effect of the reverse pressure gradient and wall friction causes the fluid velocity near the wall to gradually decrease until it stagnates or even flows in the opposite direction, thus preventing the main flow from separating and causing a flow separation phenomenon. In this embodiment, by providing the conical section 12, the fluid can first be guided through the inclined inner wall of the conical section 12, reducing the flow separation phenomenon and the degree of turbulence during fluid flow. Subsequently, the fluid passes through the orifice plate 20, so that... Figure 3 The bubbles shown are fully mixed, in Figure 3 The diagram shows the various states that the fluid may exist in the pipeline. The white area represents cavitation and the black area represents liquid. After the fluid passes through the orifice plate 20, the large bubbles break into small bubbles and mix thoroughly with the liquid fluid. This ensures that the gas and liquid phases in the refrigerant pipeline are fully mixed, achieving the purpose of smooth fluid flow. This improves or eliminates fluid flow noise and enhances the user's experience with the product.

[0045] The cone angle of the conical segment 12 can be 30°~40° to reduce the risk of fluid separation and increase the low-frequency noise reduction effect. Here, the cone angle refers to the angle of the cone corresponding to the conical segment 12; in other words, in… Figure 1 In the direction shown in the diagram, the angle between the inclined surface of the conical segment 12 and the vertical line is 15°~20°. When the angle is too large, the guiding effect of the conical segment 12 on the fluid is weakened, the fluid cannot be effectively and uniformly mixed, and the large-angle conical segment 12 will cause the cross-sectional area of ​​the flow channel to change drastically, making the fluid prone to turbulence or eddies; when the angle is too small, the fluid flows mainly along the axial direction, the radial diffusion capacity is insufficient, and the fluid is not mixed uniformly.

[0046] Reference Figure 1 Both ends of the cylindrical section 11 can be connected to a tapered section 12. The tapered section 12 at the inflow end can guide the fluid, and the tapered section 12 at the outflow end can reduce the flow diameter of the fluid so that it can smoothly enter the pipe 200 of the smaller diameter refrigerant pipe.

[0047] Reference Figure 1As shown, the sleeve 10 may also include a transition section 13, which is connected to the end of the conical section 12 away from the cylindrical section 11. The transition section 13 can be configured with a rounded corner. When the fluid flows out of the conical section 12, it can smoothly transition through the transition section 13 to reduce the collision phenomenon of the fluid in the abrupt structural region, while generating a pressure difference to accelerate fluid flow, effectively suppressing the generation of turbulence and eddies. The transition section 13 can be configured with a rounded corner with a diameter of 1 mm.

[0048] According to a second aspect of the embodiments of this disclosure, referring to Figure 1 A refrigerant pipeline is provided, which includes the aforementioned mixing device 100, disposed between the pipes 200 of the refrigerant pipeline. This refrigerant pipeline has all the beneficial effects of the aforementioned mixing device 100, which will not be elaborated here.

[0049] According to a third aspect of the present disclosure, a household appliance is provided, including the aforementioned refrigerant piping and having all the beneficial effects of the aforementioned refrigerant piping. This household appliance includes, but is not limited to, refrigerators, air conditioners, and other devices with refrigeration functions.

[0050] In the above detailed description, reference has been made to the accompanying drawings, which illustrate specific aspects of this disclosure by way of illustration. In this regard, terms indicating direction or positional relationship, such as “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential,” are used with reference to the orientation of the described figures. Since components of the described device can be positioned in multiple different orientations, directional terms are used for illustrative purposes and not for limitation. It should be understood that other aspects can be utilized and structural or logical changes can be made without departing from the concept of this disclosure. Therefore, the following detailed description should not be considered limiting.

[0051] It should be understood that, unless otherwise specifically indicated, features of various embodiments of this disclosure described herein can be combined with each other. As used herein, the term “and / or” includes any one of the relevant listed items and any combination of any two or more; similarly, “at least one of…” includes any one of the relevant listed items and any combination of any two or more.

[0052] It should be understood that, unless otherwise expressly specified and limited, the terms "joining," "attaching," "installing," "connecting," "linking," "fixing," etc., used in the embodiments of this disclosure should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms herein based on the specific circumstances.

[0053] Furthermore, the term "above" as used herein with respect to components, elements, or material layers formed or located "above" a surface may be used to indicate that the component, element, or material layer is "indirectly" positioned (e.g., placed, formed, deposited, etc.) on the surface such that one or more additional components, elements, or layers are arranged between the surface and the component, element, or material layer. However, the term "above" as used with respect to components, elements, or material layers formed or located "above" a surface may also optionally have a specific meaning: that the component, element, or material layer is "directly" positioned (e.g., placed, formed, deposited, etc.) on the surface, for example, in direct contact with the surface.

[0054] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited to these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, the first component, part, region, layer, or section mentioned in the examples may also be referred to as the second component, part, region, layer, or section. Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature. In the description herein, “a plurality” means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] It should be understood that spatial relative terms, such as “above,” “upper,” “below,” and “lower,” are used herein to describe the relationship between one element and another shown in the figures. In addition to the orientation depicted in the figures, these spatial relative terms are also intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as “above” or “upper” relative to another element would be “below” or “lower” relative to that other element. Thus, depending on the spatial orientation of the device, the term “above” encompasses both above and below orientations. Devices may have other orientations (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used herein should be interpreted accordingly.

[0056] Furthermore, the term “exemplary” is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as “exemplary” is not necessarily to be construed as advantageous compared to other aspects or designs. Rather, the use of the term “exemplary” is intended to present the concept in a concrete manner. As used herein, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless otherwise specified or clear from the context, “X applies A or B” is intended to mean any of the natural inclusive arrangements. That is, “X applies A or B” satisfies any of the foregoing instances if X applies A; X applies B; or both X applies A and B. Additionally, unless otherwise specified or clear from the context to refer to the singular form, the articles “a” and “an” as used in this application and the appended claims are generally understood to mean “one or more.”

[0057] Similarly, although this disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. This disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components described above (e.g., elements, resources, etc.), unless otherwise indicated, the terminology used to describe such components is intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if structurally not equivalent to the disclosed structure. Furthermore, although specific features of this disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desired and advantageous to any given or particular application. Moreover, with regard to the terms “comprising,” “owning,” “having,” “having,” or variations thereof as used in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term “including.”

[0058] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

[0059] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A mixed flow device characterized by, The device includes a sleeve and an orifice plate, the orifice plate being adapted to fit inside the sleeve. The orifice plate includes a solid portion and an open portion, the open portion having multiple through holes, the solid portion being located in the middle region of the orifice plate, and the open portion surrounding the solid portion.

2. The mixed flow device of claim 1, wherein, The distribution density of the vias on the opening portion is configured to decrease from the center of the perforated plate towards the outer periphery.

3. The mixed flow device of claim 2, wherein, The opening portion is provided with multiple sets of through holes surrounding the solid portion. The multiple sets of through holes are arranged radially on the perforated plate, and each set of through holes includes multiple through holes arranged at radial intervals along the perforated plate.

4. The mixed flow device of claim 1, wherein, Both the perforated plate and the solid part are circular, and the ratio of the diameter of the solid part to the diameter of the perforated plate is 0.3 to 0.

5.

5. The mixed flow device of claim 4, wherein, The diameter of the solid part is 5mm to 7mm, and the diameter of the perforated plate is 12mm to 16mm.

6. The mixed flow device of claim 1, wherein, The diameter of the via is 2mm to 4mm.

7. The mixing device according to any one of claims 1-6, characterized in that, The sleeve includes a cylindrical section and a tapered section, the orifice plate being adapted to be internally fitted within the cylindrical section, and the tapered section being connected to the end of the cylindrical section and configured to taper away from the cylindrical section.

8. The mixed flow device of claim 7, wherein, The cone angle of the tapered segment is 30°~40°.

9. The mixed flow device of claim 7, wherein, The cylindrical segment is connected to the tapered segment at both ends.

10. The mixed flow device of claim 7, wherein, The sleeve includes a transition section connected to the end of the tapered section away from the cylindrical section, the transition section being configured with a rounded corner transition.

11. A refrigerant pipeline, characterized in that, The device includes a mixing device according to any one of claims 1-10, wherein the mixing device is disposed between the pipes of the refrigerant pipeline.

12. An electric home appliance characterized by comprising: Including the refrigerant piping as described in claim 11.

Images