WO2023226895A1 - Impeller and distributor - Google Patents

Abstract

An impeller (100) and a distributor (200). The impeller (100) comprises a plate body (11), a flow splitter (20), and a plurality of blades (12). The plurality of blades (12) are located between the plate body (11) and the flow splitter (20) in a radial direction of the plate body (11), and the plurality of blades (12) are sequentially distributed along a circumferential direction of the flow splitter (20). The plate body (11), the flow splitter (20) and the blade (12) are integrally formed.

Description

Impeller and distributor

Related applications

This application claims priority to the Chinese patent application titled "Impeller Structure and Distributor", which was filed on May 25, 2022, with the application number 202221288119. X, the priority of the Chinese patent application titled "Impeller and Distributor", filed on June 15, 2022, with application number 202221498081.9, the priority of the Chinese patent application titled "Impeller and Distributor", and 2022 The priority of the Chinese patent application filed on June 15, 2020, with application number 202221497294.X and titled "Impeller and Distributor" is hereby incorporated by reference.

Technical field

The present application relates to the field of refrigeration technology, and in particular to an impeller and a distributor.

Background technique

The distributor is mainly used in air conditioning pipeline systems. Its function is to fully mix the gas-liquid two-phase refrigerant and then supply liquid to each branch of the evaporator evenly and in equal amounts to achieve the best refrigeration effect.

A distributor in the related art includes a casing and an impeller. The impeller includes a jet orifice plate and guide vanes. The jet orifice plate is provided with a plurality of mounting holes, and the guide vanes are installed obliquely in the corresponding mounting holes. The impeller is installed in the casing, and the gas-liquid two-phase refrigerant enters the distributor, is evenly mixed by the guide blades, and then distributed to each branch of the evaporator. However, in actual operation, the refrigerant passing through the impeller often still experiences uneven mixing of the gas and liquid phases, resulting in different refrigerant flow rates entering each branch, resulting in bias flow problems, which affects the evaporation and heat transfer performance of the evaporator. This affects the energy efficiency ratio of the entire refrigeration system.

Contents of the invention

According to various embodiments of the present application, an impeller and distributor are provided.

The present application provides an impeller, including a plate body, a flow diverter, and a plurality of blades. Along the radial direction of the plate body, the plurality of blades are located between the plate body and the flow diverter. The plurality of blades They are distributed sequentially along the circumferential direction of the diverter part; the plate body, the diverter part and the blades are integrally formed.

In some embodiments, the diverter member is a diverter cone, the plate body and the diverter cone are arranged concentrically or tend to be concentrically arranged, and along the axial direction of the plate body, the diverter cone, the blades, the The plates are arranged in sequence, one end of the blade is connected to the bottom surface of the diverter cone, and the other end of the blade is connected to the end surface of the plate body close to the diverter cone, adjacent to The two blades partially overlap toward the projection of a plane perpendicular to the central axis of the plate body.

In some embodiments, a plurality of the blades are distributed spirally and radially along the direction from the center to the edge of the plate, the axial height of each blade gradually decreases, and the plurality of blades are close to the plate. One side of the central axis of the body is connected to each other.

In some embodiments, at least part of the blade and at least part of the diverter cone are located in the plate body, and the blade includes a connecting part and a non-connected part, and the blade is connected to the diverter cone through the connecting part. The peripheral side and the inner wall of the plate body are matched and connected and fixed, and the outer edge contour of the non-connection part is arranged in an arc surface; two adjacent blades face the projection part of a plane perpendicular to the central axis of the plate body overlapping.

In some embodiments, a plurality of the blades are arranged in an inclined manner, and the inclination angle and direction of each blade are the same; the angle between each blade and the central axis of the splitter cone is A, 30°. ≤A≤60°.

In some embodiments, the plate body is provided with diverter holes corresponding to the blades, a plurality of diverter holes are arranged at intervals along the circumferential direction of the diverter member, and the plurality of diverter holes are arranged in the order of The diverter members are distributed radially from the center; along the axial direction of the plate body, the blades extend from the plate body in a direction away from the diverter hole and are arranged obliquely.

In some embodiments, the diverter member is a diverter cone. The diverter cone protrudes outward from the horizontal surface of the plate body. The large-diameter end of the diverter cone is provided on the plate body. The diverter cone is The small diameter end of the diverter cone is far away from the plate body; the diameter of the large diameter end of the diverter cone is greater than the linear distance from the end of the diverter hole close to the diverter cone to the center of the plate body; and/or, the diameter of the diverter cone The angle between the conical surface and the horizontal surface of the plate is B, and the value range of B is 30°<B<60°.

In some embodiments, the diverting member is a diverting groove, and the diverting groove is recessed inward from the horizontal surface of the plate body; the diverting groove is a tapered groove, and the tapered surface of the diverting groove is in contact with the plate. The angle between the horizontal planes of the body ranges from 35° to 60°.

In some embodiments, the blade includes a blade body and a guide groove. Along the thickness direction of the blade body, the guide groove is formed inwardly from an end surface of the blade body; along the length of the blade body direction, a plurality of the guide grooves are arranged side by side at intervals.

In some embodiments, the blade includes a blade body and a notch. Along the width direction of the blade body, the notch is provided at an end of the blade body away from the plate body, and the notch is in a zigzag shape.

In some embodiments, the blade is fan-shaped, or the cross-section of the blade along the extension direction is triangular, and the width of the cross-section gradually becomes smaller from an end close to the plate body to an end away from the plate body.

In some embodiments, the impeller further includes a connecting portion connected from an edge of the diverter hole to a side of the blade.

In some embodiments, the width of the blade projected onto the plate body is greater than or equal to the width of the diverter hole.

The present application also provides a distributor including the impeller as described above.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features of this application, The objects and advantages will become apparent from the description, drawings and claims.

Description of the drawings

To better describe and illustrate embodiments and/or examples of those inventions disclosed herein, reference may be made to one or more of the accompanying drawings. The additional details or examples used to describe the drawings should not be construed as limiting the scope of any of the disclosed inventions, the embodiments and/or examples presently described, and the best modes currently understood of these inventions.

Figure 1 is a schematic structural diagram of a dispenser according to one or more embodiments.

Figure 2 is a cross-sectional view of a distributor with an impeller according to one or more embodiments.

Figure 3 is a schematic structural diagram of an impeller according to one or more embodiments.

Figure 4 is a top view of an impeller according to one or more embodiments.

Figure 5 is a bottom view of an impeller according to one or more embodiments.

Figure 6 is a cross-sectional view of a distributor with an impeller according to one or more embodiments.

Figure 7 is a schematic structural diagram of an impeller according to one or more embodiments.

Figure 8 is a front view of an impeller according to one or more embodiments.

Figure 9 is a top view of an impeller according to one or more embodiments.

Figure 10 is a bottom view of an impeller according to one or more embodiments.

Figure 11 is a top view of a blade according to one or more embodiments.

Figure 12 is a schematic structural diagram of an impeller equipped with a diverter cone according to one or more embodiments.

Figure 13 is a schematic structural diagram of an impeller equipped with a diverter groove according to one or more embodiments.

Figure 14 is a schematic structural diagram of an impeller with guide grooves on its blades according to one or more embodiments.

Figure 15 is a schematic structural diagram of an impeller with notches on its blades according to one or more embodiments.

Figure 16 is a schematic diagram of angle B at which the impeller is provided with a splitter cone according to one or more embodiments.

Figure 17 is a line diagram of a blade in the related art.

Figure 18 is a line schematic diagram of a blade according to one or more embodiments.

Figure 19 is a schematic structural diagram of an impeller equipped with a diverter cone according to one or more embodiments.

Figure 20 is a partial cross-sectional structural diagram of an impeller according to one or more embodiments.

Figure 21 is a schematic structural diagram of an impeller provided with a connecting portion according to one or more embodiments.

100. Impeller; 200. Distributor; 10. Impeller body; 20. Splitter; 21. Split cone; 211. Cone part; 212. Column part; 22. Split groove; 12. Blade; 121. Connection part; 122 , non-connection part; 123. blade body; 124. diverter part; 1241, guide groove; 1242, notch; 125, cross section; 11, plate body; 111, diverter hole; 30, connection part; 300, main body.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

In order to make the above objects, features and advantages of the present application more obvious and easy to understand, the specific implementation modes of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described here. Those skilled in the art can make similar improvements without violating the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

It should be noted that when a component is said to be "fixed" or "set to" another component, it can be directly on the other component or there may also be an intermediate component present. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be an intermediate component present at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of this application are for illustrative purposes only and do not represent the only implementation. Way.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In this application, unless otherwise expressly stated and limited, the first feature being "on" or "below" the second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact. Contact through intermediaries. Moreover, the terms “above”, “above” and “above” the first feature of the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature of the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

Unless otherwise defined, all technical and scientific terms used in the description of this application have the same meanings as commonly understood by those skilled in the technical field of this application. The terms used in the description of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification of this application, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to Figures 1, 2 and 6. This application provides a distributor 200, which includes a main body 300 and an impeller 100. The impeller 100 is located in the main body 300 and is fixedly connected to the main body 300. The function of the impeller 100 is to fully mix the gas-liquid two-phase refrigerant and supply liquid to each branch of the evaporator evenly and in equal amounts to achieve the best refrigeration effect.

Referring to FIGS. 3 and 7 , the impeller 100 includes a plate body 11 , a diverter cone 21 (in this embodiment, the diverter member is the diverter cone 21 ), and a plurality of blades 12 . The diverter cone 21 and the plate body 11 are arranged concentrically or tend to be concentric. The concentricity described here is not limited to concentricity in an absolute sense, but also includes concentric arrangements within a tolerance range; multiple blades 12 are arranged along the circumferential direction of the diverter cone 21 Distributed in sequence, the blades 12 are located between the diverter cone 21 and the plate body 11, and are connected to the diverter cone 21 and the plate body 11 respectively.

Furthermore, the outer wall of the plate body 11 of the impeller 100 is matched with the inner wall of the main body 300 and fixedly connected, so that the impeller 100 is fixed in the main body 300, thereby improving the overall structural stability of the distributor 200.

After the gas-liquid two-phase refrigerant enters the distributor 200, it will flow through the diverter 20 and be guided and divided by the diverter 20, so that the flow rate and state of the refrigerant flowing between the plurality of blades 12 are basically equal. Then, through the guiding action of the multiple blades 12, the refrigerant forms a swirling flow, so that the refrigerant gas and liquid phases are fully mixed, thereby ensuring a more uniform mixing of the refrigerant gas and liquid distributed to each branch. Moreover, the impeller 100 provided by this application can well guide the flow direction of the refrigerant, reduce the probability of sudden change and reflection of the refrigerant, reduce flow resistance and pressure loss, and effectively improve the energy efficiency ratio of the refrigeration system.

Please refer to Figures 2 and 3. Along the axial direction of the plate body 11, the diverter cone 21, the blades 12 and the plate body 11 are arranged in sequence. One end of the blade 12 is connected to the bottom surface of the diverter cone 21, and the other end of the blade 12 is connected to the plate body 11. The end face on one side close to the diverter cone 21 is connected. The refrigerant split by the splitter cone 21 can flow directly to the blades 12 and then be guided by multiple blades 12. The refrigerant forms a swirling flow to fully mix the refrigerant gas and liquid phases, thereby ensuring distribution to each branch of the evaporator. The refrigerant gas and liquid are mixed more evenly.

Please refer to Figures 3, 4 and 5. The plurality of blades 12 are distributed in a spiral radial shape from the center to the edge of the plate body 11. By arranging the plurality of blades 12 in a spiral radial shape, the refrigerant flowing into the impeller 100 can be more efficiently. It is easy to produce swirling flow, thereby increasing the degree of disorder of the refrigerant, thereby making the gas-liquid mixing and flow distribution of the refrigerant more even, and improving the mixing effect of the refrigerant.

In this embodiment, the spiral direction of the plurality of blades 12 is in the clockwise direction. In other embodiments, the spiral direction of the plurality of blades 12 may also be counterclockwise.

Please refer to Figure 2, Figure 3 and Figure 5. Along the radial direction of the plate body 11, a plurality of blades 12 are connected to each other on one side close to the central axis of the plate body 11. In this way, the connection area between the blades 12 is increased, thereby improving the efficiency of the blades. 12, and the connection area between the blades 12 and the bottom surface of the splitter cone 21 is also increased, which improves the connection strength between the blades 12 and the splitter cone 21, thereby improving the overall structural strength of the impeller 100.

The plurality of blades 12 have the same shape, size and helix angle. In this way, the mixing and flow distribution of the refrigerant gas-liquid flowing between two adjacent blades 12 can be made more uniform, thereby further improving the performance of the refrigeration system.

Furthermore, the axial height of each blade 12 gradually decreases along the direction from the center to the edge of the plate body 11 . In this way, when the refrigerant impacts the impeller 100, the blades 12 close to the center of the plate 11 receive greater force, and the height of the multiple blades 12 The higher sides are connected to each other, which can further improve the overall structural strength of the impeller 100 and thus better cope with the impact of the refrigerant. The height of the blade 12 is smaller at the edge of the plate body 11, which is also convenient for connection with the plate body 11.

Please refer to Figure 3. The diverter cone 21 is a cone. In one embodiment, the diverter cone 21 is conical in shape. In this way, it can more easily play the role of guiding and diverting traffic. In other embodiments, the diverting cone 21 may also be a pyramid, as long as it can achieve the same diverting effect.

Referring to FIG. 6 , FIG. 7 and FIG. 8 , at least part of the blade 12 and at least part of the diverter cone 21 are located in the plate body 11 . Along the radial direction of the plate body 11, the plate body 11, the blades 12 and the diverter cone 21 are arranged in sequence, and the blades 12 are respectively connected to the peripheral side of the diverter cone 21 and the inner wall of the plate body 11. In this way, the refrigerant divided by the diverter cone 21 can directly flow to the blades 12, and then be guided by the plurality of blades 12. The refrigerant forms a swirling flow, so that the refrigerant gas and liquid phases are fully mixed, thereby ensuring that the refrigerant is distributed to each part of the evaporator. The refrigerant gas and liquid in the branch circuit are mixed more evenly. Furthermore, the peripheral sides of the blades 12 and the diverter cone 21 and the inner wall of the plate body 11 have a larger connection area, thereby improving the connection strength between the blades 12 and the diverter cone 21 and the plate body 11 and improving the overall strength of the impeller 100 .

Furthermore, the plurality of blades 12 are spaced apart and arranged in an inclined manner, and the inclination angle and direction of each blade 12 are the same. The inclined blades 12 can guide and damp the flow of the refrigerant. The refrigerant can form a high-speed and uniform swirl flow on the surface of the blades 12, so that the refrigerant is mixed more evenly, and then flows to each branch after being divided. The refrigerant gas-liquid mixing and flow distribution are more uniform, which can effectively avoid the occurrence of bias flow, thereby significantly improving the heat exchange effect of the entire refrigeration system and effectively improving the energy efficiency ratio of the refrigeration system.

Optionally, please refer to Figure 6. The angle between each blade 12 and the central axis of the splitter cone 21 is A, 30°≤A≤60°. In this way, the liquid separation effect can be ensured, the refrigerant gas-liquid mixing and flow distribution passing through each blade 12 can be more uniform, and the pressure drop can be reduced as much as possible, thereby further improving the performance of the refrigeration system. In other embodiments, the angle between the central axis of the blade 12 and the splitter cone 21 can be selected according to actual application requirements.

Please refer to Figure 9, Figure 10 and Figure 11. The blade 12 includes a connecting part 121 and a non-connecting part 122. The blade 12 is matched with and connected to the connection between the diverter cone 21 and the plate body 11 through the connecting part 121. The non-connecting part of the blade 12 is The outer edge contour of the connecting portion 122 is arranged in a circular arc surface. The connecting portion 121 facilitates the connection between the blade 12, the diverter cone 21 and the plate body 11, making the connection more stable. With this arrangement, the connecting portion 121 connects the edge of the splitter hole and the side of the blade to strengthen the blade to accept the impact of gas and liquid flowing in through the splitter hole, and to stabilize the structure of the blade and the plate body being integrated.

Please refer to FIG. 7 . The diverter cone 21 includes a cone part 211 and a columnar part 212 . The cone part 211 is used to guide the diverted refrigerant. The columnar part 212 is used to connect the blades 12 . The cone part 211 and the columnar part 212 are connected. Specifically, along the axial direction of the plate body 11 , one end of the columnar portion 212 is connected to the bottom surface of the cone portion 211 , and the cone portion 211 is disposed higher than the blade 12 . The side of the plurality of blades 12 away from the plate body 11 is connected to the peripheral side of the columnar portion 212 . The arrangement of the columnar portion 212 facilitates the connection between the diverter cone 21 and the blade 12 and can improve the connection strength.

In one embodiment, the cone portion 211 is conical. In this way, it can more easily play the role of guiding and diverting traffic. In other embodiments, the cone portion 211 can also be a pyramid, as long as it can achieve the same diverting effect.

In Embodiment 1 and Embodiment 2, please refer to FIGS. 4 and 9 , the projections of two adjacent blades 12 toward a plane perpendicular to the central axis of the plate body 11 partially overlap. That is, when the space size is constant, more blades 12 can be installed to make the structure more compact, thereby further improving the gas-liquid mixing degree and improving the refrigerant mixing effect.

The impeller 100 is integrally formed. Specifically, the impeller 100 can be processed and formed using any one of powder metallurgy, 3D printing, and laser sintering. In this way, the overall structural strength of the impeller 100 can be effectively improved. At the same time, it can reduce assembly time and processing difficulty, thereby improving processing efficiency and reducing costs. Of course, in other embodiments, the impeller 100 can also be manufactured and shaped by other conventional methods known in the art, and there is no limitation here.

In addition, the integrated design of the dividing plate body 11, the diverting part 20 and the blades 12 simplifies the impeller structure and makes the diverting part 20 solid and firm to withstand the impact of gas and liquid.

In some embodiments, as shown in FIGS. 12 to 15 , the impeller 100 includes an impeller body 10 and a diverter 20 . The impeller body 10 includes a plate body 11 and blades 12 , and a plurality of blades 12 are provided on the plate body 11 . The body 11 is provided with a plurality of splitting holes 111, which correspond to the blades 12 one by one. The plurality of splitting holes 111 are distributed radially with the splitting member 20 as the center, and the plurality of splitting holes 111 are along the circumferential direction of the splitting member 20. The intervals are set to distribute the liquid evenly and avoid biased flow.

In addition, the diverter 20 is integrally formed on the plate body 11 , which simplifies the structure of the impeller 100 and facilitates the even distribution of gas and liquid to each diverter hole 111 . A plurality of blades 12 are arranged at intervals along the circumferential direction of the diverter 20 to separate the diverter. 20 The gas and liquid diverted to the diverter hole 111 are diverted to ensure uniform diverting. Compared with related technologies, when the impeller 100 provided in this application performs gas-liquid splitting, the splitting member 20 receives the gas and liquid and guides the flow to the splitting hole 111 to avoid biased flow, so that the blades on the splitting hole 111 split the gas-liquid flow.

Further, as shown in Figures 13 and 19, the impeller 100 adopts a design in which the diverter part 20 and the impeller body 10 are integrally formed. There is no connection part so that the gas and liquid diverted by the diverter part 20 can directly flow into the diverter hole 111, avoiding gaps in the connection parts. When leakage occurs, the integrated design of the diverter part 20 and the plate body 11 simplifies the impeller structure and makes the diverter part solid and firm to withstand the impact of gas and liquid. Further, the diverter piece 20 cooperates with the blades 12 to divert the gas and liquid first through the diverter piece 20 integrally formed with the impeller body 10, and guide the primary diverted gas and liquid to the blades 12 for secondary diverting, and the gas and liquid are diverted. The flow is directed to each shunt hole 111, and then flows into the blades 12 corresponding to the shunt holes 111 for even distribution.

Those skilled in the relevant fields should understand that when the impeller body 10 is used on the distributor 200, it is installed in the cavity of the distributor 200, and the direction of the branching part 20 corresponds to the gas-liquid inlet and outlet of the distributor 200. Since this part is not the The key points involved in the application will not be explained in the subsequent description.

Referring to FIGS. 12 and 13 , the diverting member 20 may be a diverting cone 21 or a diverting groove 22 . Along the axial direction of the impeller 100 , the diverter cone 21 is formed to protrude outward from the end surface of the plate body 11 , and the diverter groove 22 is formed to be recessed inward from the end surface of the plate body 11 . Specifically, the diverter cone 21 is integrally formed with the plate body 11 . The diverter cone 21 is used to divert the gas and liquid to the diverter hole 111 after primary diverting, and conduct a secondary even diverting through the blade 12 . In addition, the diverter groove 22 is connected with the plate body 11 It is formed in one piece. After the gas and liquid flow into the shunt groove 22 for buffering, they overflow to the shunt hole 111 for even distribution.

Referring to FIGS. 14 and 15 , the blade 12 includes a blade body 123 and a splitter portion 124 , and the splitter portion 124 is provided on the blade body 123 to evenly split the gas-liquid two-phase refrigerant flowing through the splitter hole 111 to the blade 12 . The diverter part 124 may be a guide groove 1241 or a notch 1242. Specifically, the guide groove 1241 is provided on the blade 12 to better evenly distribute the refrigerant on the blade. In addition, a notch 1242 is provided on the blade 12 for To better distribute the gas and liquid on the blade 12 evenly.

In one embodiment, as shown in FIG. 12 , the diverter part 20 is a diverter cone 21 . The large-diameter end of the diverter cone 21 is provided on the plate body 11 and is integrally formed with the plate body 11 . The small-diameter end of the diverter cone 21 is away from the plate body 11 Specifically, the gas and liquid flow through the small diameter end of the diverter cone 21 along the cone surface to the large diameter end of the diverter cone 21. This flow process divides the gas and liquid once, and guides the once diverted gas and liquid to each diverter hole. 111 in. With this arrangement, the large-diameter end of the diverter cone 21 is located on the plate body 11, and the small-diameter end is located away from the plate body 11 to receive the impact of gas and liquid, avoid direct impact on the impeller end face, guide the flow direction of gas and liquid, and facilitate the flow into the diverter hole 111. But not limited to this, the large diameter end of the diverter cone 21 is designed to be larger than the distance from each diverter hole 111 to the center of the plate body 11, so that the gas and liquid diverted once by the diverter cone 21 can be directed to the diverter hole 111 to avoid flowing through the plate. Body 11 causes drift phenomenon.

In one embodiment, as shown in Figures 12 to 16, the angle (acute angle) between the conical surface of the diverter cone 21 and the horizontal surface of the plate body 11 is B, and the value range of B is 30°<B< 60°, which is a value that can divide the gas and liquid evenly. But it is not limited to this. According to the shunting of different types of gas and liquid, the angle B can be adjusted within the value range. For example, the value range of B is selected to be 35°<B<40° to evenly shunt the gas and the once-shunted gas. The liquid is drained into each branch hole 111. With this setting, the value of the included angle B is set between 30° and 60°, which facilitates the conical surface of the splitter cone to contact the gas and liquid to evenly split the flow.

In one embodiment, as shown in Figures 12 to 15, the diameter of the large end of the diverter cone 21 is larger than the linear distance from the end of the diverter hole 111 close to the diverter cone 21 to the center of the plate, so that when the gas and liquid pass through the diverter cone 21 After the primary flow is diverted, it flows directly into each diverter hole 111 for secondary division.

In one embodiment, as shown in FIGS. 12 to 15 , the diverting member 20 is a diverting groove 22 for buffering gas and liquid from top to bottom. Specifically, the shunt groove 22 is formed inwardly from the surface (end surface) of the plate body 11. When the gas and liquid enter the impeller 100 for shunting, the gas and liquid flow into the shunt groove 22. When a certain amount is reached, overflow occurs, and the overflowed gas and liquid are diverted. to each branch hole 111. With this arrangement, a recessed shunt groove 22 is formed on the end surface of the plate body 11 so that the gas and liquid enter the shunt groove 22 to form a buffer and overflow to each of the shunt holes 111 .

Further, the shunt groove 22 can be a tapered groove, a hemispherical groove or a trapezoidal groove, a tapered groove, a hemispherical groove or a trapezoidal groove. The tank does not have a cross-sectional layer directly facing the impact of gas and liquid to reduce buffering and avoid deformation of the shunt tank 22. Specifically, the shunt groove 22 is a tapered trough. The gas and liquid flow through the conical surface of the tapered groove to the small diameter end until the flow is full and overflows the shunt groove 22. The overflowing gas and liquid flow to each of the shunt holes 111 for even distribution. The shunt groove 22 is Hemispherical groove, gas and liquid flow to the hemispherical groove through the spherical surface until the flow is full and overflows the shunt groove 22, and the overflowing gas and liquid flows to each shunt hole 111 for uniform distribution, but is not limited to this, the shunt groove 22 can also be a trapezoidal groove, trapezoidal The groove can withstand the impact force when more gas and liquid flow into the diverter groove 22, so that the diverter groove 22 is not easily deformed. Similarly, when the diverter groove 22 is a tapered groove, the angle (acute angle) between the conical surface of the diverter groove 22 and the horizontal surface of the plate body 11 ranges from 35° to 60°, which facilitates the smooth flow of gas and liquid. It flows into the shunt groove 22 and overflows to each shunt hole 111 for re-shunting.

In one embodiment, as shown in FIGS. 12 to 15 , a plurality of blades 12 and a plurality of split holes 111 are evenly distributed along the circumferential direction of the splitter 20 , and the plurality of blades 12 are in a radial shape and are aligned with each split hole 111 . Correspondingly, the diverter 20 diverts the gas and liquid to each diverter hole 111 after a primary diverter, and the plurality of blades 12 corresponding to each diverter hole 111 performs a secondary diverter of the gas and liquid evenly.

Specifically, they are evenly arranged in a radial circumferential direction, so that the diverter 20 can directly divert the gas and liquid to the blades 12 in each diverter hole 111 after a primary divert, thereby avoiding biased flow. But it is not limited to this, a U-shaped groove can be added at the middle position between the diverter 20 and the plurality of blades 12 evenly distributed in the circumferential direction. Each U-shaped groove corresponds to the diverter hole 111 one by one, and the gas and liquid that have been diverted by the diverter 20 can pass through. The U-shaped groove directly flows into the diverter hole 111, and performs secondary diverting without bias flow.

In one embodiment, as shown in FIGS. 12 to 15 , the blade 12 includes a blade body 123 and a splitter portion 124 provided on the blade body 123 to better evenly distribute the gas and liquid flowing from the splitter hole 111 to the blade 12 , specifically, the diverting portion 124 is a guide groove 1241. Along the thickness direction of the blade body 123, the guide groove 1241 is formed by being recessed inward from the end surface of the blade body 123. A plurality of guide grooves 1241 are provided at intervals on the blade body 123. And are arranged side by side along the length direction of the blade body 123. Depending on the type of gas and liquid, adhesion to the blade body 123 may occur. Multiple guide grooves 1241 are provided to facilitate the even distribution of gas and liquid. The guide grooves 1241 are arranged along the blade body 123. are arranged in the length direction to divert the gas and liquid to the outside of the blade body 123 at a certain slope. Along the length direction of the blade body 123, a plurality of diversion grooves 1241 are arranged side by side at intervals to divert the gas and liquid that have been diverted through the diverter cone 21 or the diverter groove 22 for secondary diverting, thereby enhancing the flow on the diverter blade 12 and avoiding passing through the diverter holes. 111 The flow rate flowing into the blade 12 is too large and the flow distribution is uneven.

In other embodiments, the diverter portion 124 is a sawtooth-shaped notch 1242 along the width direction of the blade body 123. The notch 1242 is provided at an end of the blade body 123 away from the plate body 11 to evenly divert the flow through the diverter hole 111 to the blade. For the gas and liquid on the blade 12, the gap 1242 is set at the end of the splitter blade 12 away from the plate body 11, so that the blade 12 can use the slope to split the flow twice and then split the flow again through the tooth-shaped gap 1242 to ensure uniform gas-liquid splitting. But it is not limited to this. The blade body 123 can be provided with a V-shaped groove and a V-shaped nozzle can be added at one end of the V-shaped groove away from the plate body 11 to evenly divide the flow and avoid deflection of gas and liquid when the air and liquid are diverted on the blade 12 .

The flow splitting principle of the impeller 100 provided in this embodiment is as follows: the impeller 100 mainly uses the flow splitting member 20 and the blade 12 to split the flow. When the gas and liquid flow into the impeller 100, they first split through the splitter 20. When the splitter 20 is the splitter cone 21, the gas and liquid flow through the small diameter end of the splitter cone 21 through the cone surface and reach the large diameter end of the splitter cone 21 for splitting. At the same time, the diverter cone 21 guides the diverted gas and liquid to each diverter hole 111 to complete a split. When the diverter 20 is the diverter groove 22, the gas and liquid directly flow into the diverter groove 22 until the flow is full and overflows, and the overflowing gas and liquid are diverted. to each split hole 111 to complete a split, and then the gas and liquid flowing into the split hole 111 flow to the blade 12 corresponding to the split hole 111. When the blade 12 is provided with a guide groove 1241, the gas and liquid flowing to the blade 12 The flow is evenly divided through the guide groove 1241 to complete the secondary diversion. When the blade 12 is provided with a tooth-shaped notch 1242, the gas and liquid flowing to the blade 12 are evenly divided through the tooth-shaped notch 1242 to complete the secondary diversion.

Referring to FIG. 17 , when the impeller in the related art is diverting or diverting flow, the fluid will first pass through the diverting hole of the impeller 100A, then reach the blade 200A, and be further diverted through the blade 200A, and then used in the impeller 100A. When it comes to the distributor, it is expected that the gas and liquid coming out of the distribution port of the distributor can be mixed evenly. However, the blades in the related art are manufactured by stamping. After stamping, the blade 200A will have an inclination angle and a certain gap ΔL1 with the side wall where the split hole of the impeller 100A is located. At this time, the blade 200A is in the impeller. The width of the plane projection where 100A is located is smaller than the width of the shunt hole. Due to the existence of the gap ΔL1, part of the fluid will not contact the blades when passing through the splitter hole, that is, this part of the liquid will not be guided by the blades, which may cause uneven mixing of gas and liquid in the distributor.

Referring to FIG. 18 , the blades 12 of the present application are arranged obliquely from the plate body 11 in the direction away from the splitter hole 111 , and the width of the blade 12 projected onto the plate body 11 is greater than or equal to the width L1 of the splitter hole 111 , that is, the blade 12 is projected onto the plate. The width of the body 11 is equal to L1 + ΔL2, where ΔL2 can be zero, so that when the fluid passes through the diverter hole 111, all the fluid will contact the blade 12, which is beneficial to the uniform distribution of gas and liquid in the distributor 200.

Referring to Figures 19 to 21, the present utility model provides an impeller 100. The impeller 100 includes a plate body 11 and blades 12, and the blades 12 and the plate body 11 are integrally formed. In addition, the plate body 11 is provided with a plurality of Split holes 111. A plurality of split holes 111 are arranged radially on the plate body 11 to split gas and liquid. A plurality of blades 12 correspond to the split holes 111 to split the gas and liquid flowing through the split holes 111 to each blade. 12. Avoid bias flow.

Referring to FIG. 13 , FIG. 19 and FIG. 20 , in some embodiments, the blades 12 are inclined from the plate body 11 in a direction away from the splitter hole 111 , and along the axial direction of the impeller 100 , the blades 12 are projected onto the plate body 11 The width is greater than or equal to the width of the diverter hole 111 to completely flow the gas and liquid flowing through the diverter hole 111 to the blade 12 for diverting, thereby preventing the gas and liquid from passing through the diverter hole 111 and directly flowing through the gap between the blade 12 and the diverter hole 111. The flow out of the impeller 100 is difficult to divide evenly.

Persons skilled in the relevant fields should understand that when the impeller is used on the distributor 200, it is installed in the cavity of the distributor 200. The direction of the flow splitting part 20 and the direction of the flow guide of the blade 12 respectively correspond to the gas-liquid inlet and outlet of the distributor 200. Depend on In this application, the structure of the impeller is improved, and the contents of the distributor 200 will not be described subsequently.

Referring to Figures 13, 19 and 20, the blades 12 and the plate body 11 are integrally formed through powder metallurgy. According to different gas and liquid components, impellers 100 of different materials need to be used to divert the gas and liquid. Powder metallurgy can process a variety of metals. materials, and save materials when the blades 12 and the plate body 11 are integrally molded to facilitate the diversion of various gases and liquids; as other embodiments, the blades 12 and the plate body 11 can also be integrally molded through 3D printing, because the impeller 100 is integrally molded Design, multiple blades 12 are easily damaged when processed. 3D printing can be designed according to diverse structures to avoid the impeller 100 being difficult to be integrally molded due to its special structure. The blades 12 and the plate body 11 can also be integrally molded through laser sintering. When the gas and liquid enter the impeller 100 for splitting, it is necessary to ensure that the surface of each splitting part of the impeller 100 is smooth to split the flow evenly. The laser-sintered impeller 100 has good precision and high strength, which facilitates the splitting part 20 and the blade 12 to split the flow evenly.

In one embodiment, as shown in FIGS. 14 and 20 , the impeller 100 includes a connecting portion 30 for connecting the plate body 11 and the blade 12 . Specifically, the connecting portion 30 is formed from the edge of the diverter hole 111 to the side of the blade 12 The connection is made to stabilize the integral formation of the blade 12 and the plate body 11. When the gas and liquid flow to the blade 12 through the diverter hole 111, the connecting portion 30 stabilizes the blade 12 to avoid deformation of the blade 12 due to the impact of the gas and liquid on the blade 12. Even breaks, increasing strength. But it is not limited to this, a reinforcing rib is added to the back of the blade 12 and connected to the back of the plate body 11, and the height of the reinforcing rib is adjusted according to the inclination angle of the blade 12 to ensure that the blade 12 can withstand gas-liquid impact of different strengths.

Furthermore, when the blade 12 is tilted on one side, a single connecting portion 30 is provided to support the blade 12 on one side to receive the gas and liquid. When the blade 12 is tilted on both sides, two connecting portions 30 are provided to support the blades 12 on both sides to receive the gas. According to the inclination angle of the blade 12 and the strength required to receive the flow of gas and liquid, the number of the connecting parts 30 is selected to stabilize the integral structure of the blade 12 and the plate body 11 .

In one embodiment, as shown in Figures 13, 19 and 20, the blades 12 are fan-shaped, and the fan shape facilitates the gas-liquid splitting of the blades 12, and facilitates the smooth flow of gas and liquid into the guide groove 1241 for gas-liquid splitting; in another embodiment For example, as shown in Figure 21, the cross-section 125 of the blade 12 is triangular, which facilitates the creation of a slope when the gas and liquid flow through the blade 12 to divert the flow. Furthermore, the width of the cross-section 125 of the blade 12 is from the end close to the plate body 11 to the end away from the plate 11. One end of the plate 11 gradually becomes smaller, and the gas and liquid flowing to the blade 12 through the split hole 111 are split along the blade 12 with a triangular cross section 125 . But it is not limited to this. The cross section 125 of the blade 12 is set in an arc shape to facilitate uniform distribution of gas and liquid on the blade 12 .

The splitting principle of the impeller 100 provided in this embodiment is as follows: the impeller 100 mainly uses the blades 12 to split the flow evenly, and the splitting part 20 cooperates with the splitting. When the gas and liquid flow into the impeller 100, they first pass through the splitting part 20 for a split, and the split gas and liquid flow into each In the diverter hole 111, because the width of the blade 12 projected onto the plate body 11 is greater than or equal to the width of the diverter hole 111, the gas and liquid flowing into the diverter hole 111 directly flows to the diverter part 124 of the blade 12. When the diverter part 124 is the guide groove 1241, The gas and liquid flowing to the blade 12 are evenly divided through the guide groove 1241 to complete the secondary flow. When the splitting part 124 is a tooth-shaped notch 1242, the gas and liquid flowing to the blade 12 are evenly divided through the tooth-shaped notch 1242 to complete the second flow. secondary diversion.

Referring to Figures 1, 2 and 6, this application provides a distributor 200, including the impeller 100 as described above.

The technical features of the above-described embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, All should be considered to be within the scope of this manual.

The above-described embodiments only express several implementation modes of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims (14)

1. An impeller, characterized in that it includes a plate body, a flow diverter, and a plurality of blades. Along the radial direction of the plate body, a plurality of the blades are located between the plate body and the flow diverter. The blades are distributed sequentially along the circumferential direction of the flow diverter;

   The plate body, the diverter part and the blade are integrally formed.
2. The impeller according to claim 1, wherein the diverting member is a diverting cone, the plate body and the diverting cone are arranged concentrically or tend to be concentric, and along the axial direction of the plate body, the diverting cone and the diverting cone are arranged concentrically or concentrically. The blades and the plate body are arranged in sequence, one end of the blade is connected to the bottom surface of the diverter cone, the other end of the blade is connected to the end surface of the plate body close to the diverter cone, two adjacent ones The blades partially overlap toward the projection of a plane perpendicular to the central axis of the plate body.
3. The impeller according to claim 2, wherein a plurality of the blades are distributed in a spiral radial pattern from the center to the edge of the plate body, the axial height of each blade gradually decreases, and a plurality of the blades are arranged in a spiral radial direction. The blades are connected to each other on one side close to the central axis of the plate body.
4. The impeller according to claim 1, wherein at least part of the blade and at least part of the diverter cone are located in the plate body, the blade includes a connecting part and a non-connecting part, and the blade is connected with the connecting part through the connecting part. The peripheral side of the diverter cone and the inner wall of the plate body are matched and connected and fixed, and the outer edge contour of the non-connected part is arranged in an arc surface;

   Two adjacent blades partially overlap toward the projection of a plane perpendicular to the central axis of the plate body.
5. The impeller according to claim 4, wherein a plurality of the blades are arranged in an inclined manner, and the inclination angle and direction of each of the blades are the same;

   The angle between each blade and the central axis of the splitter cone is A, 30°≤A≤60°.
6. The impeller according to claim 1, wherein the plate body is provided with diverter holes corresponding to the blades, a plurality of the diverter holes are arranged at intervals along the circumferential direction of the diverter member, and a plurality of the diverter holes are arranged at intervals along the circumferential direction of the diverter member. The shunt holes are distributed radially with the shunt piece as the center;

   Along the axial direction of the plate body, the blades extend from the plate body in a direction away from the diverter hole and are arranged obliquely.
7. The impeller according to claim 6, wherein the diverting member is a diverting cone, the diverting cone is formed by protruding outward from the horizontal surface of the plate body, and the large diameter end of the diverting cone is provided on the plate body. , the small diameter end of the diverter cone is away from the plate body;

   The diameter of the large end of the diverter cone is greater than the linear distance from the end of the diverter hole close to the diverter cone to the center of the plate body; and/or, the conical surface of the diverter cone and the horizontal plane of the plate body The angle between them is B, and the value range of B is 30°<B<60°.
8. The impeller according to claim 6, wherein the diverting member is a diverting groove, and the diverting groove is formed by being recessed inward from the horizontal surface of the plate body;

   The shunt groove is a tapered trough, and the angle between the conical surface of the shunt groove and the horizontal surface of the plate body ranges from 35° to 60°.
9. The impeller according to claim 6, wherein the blade includes a blade body and a guide groove, and the guide groove is formed by being recessed inward from an end surface of the blade body along the thickness direction of the blade body; In the length direction of the blade body, a plurality of the guide grooves are arranged side by side at intervals.
10. The impeller according to claim 6, wherein the blade includes a blade body and a notch, and along the width direction of the blade body, the notch is provided at an end of the blade body away from the plate body, and the notch is in the shape of Jagged.
11. The impeller according to claim 6, wherein the blades are fan-shaped, or the cross-section of the blades along the extending direction is triangular, and the width of the cross-section is from an end close to the plate body to an end away from the plate body. gradually become smaller.
12. The impeller according to claim 6, wherein the impeller further includes a connecting portion connected from an edge of the diverter hole to a side of the blade.
13. The impeller according to any one of claims 9 to 12, wherein the width of the blade projected onto the plate body is greater than or equal to the width of the diverter hole.
14. A distributor, characterized by comprising the impeller according to any one of claims 1-13.