Central air conditioner distributor

Abstract

The utility model relates to the technical field of marine air conditioners, and discloses a central air conditioner distributor which comprises a pipe body, a plurality of flow dividing holes are formed in one end of the pipe body, the other end of the pipe body is a connecting end, and a drainage block, a mounting plate and a buffer net are arranged in the pipe body at intervals. An inner cavity, facing the connecting end, of the pipe body is a first flow mixing cavity, a flow guiding spiral is arranged in the first flow mixing cavity, a second flow mixing cavity is formed in the other side of the flow guiding block, an impeller is rotationally installed on the installation plate and arranged in the second flow mixing cavity, a plurality of protruding blocks are arranged on the inner wall of the second flow mixing cavity, and the protruding blocks are arranged on the inner wall of the second flow mixing cavity. According to the device, the problem that the flow mixing effect is limited is solved, forced flow mixing is conducted through the flow guide spirals, large fluid clusters are promoted to be dispersed through the protruding blocks, the uniformity of the fluid is improved, and the heat exchange effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of marine air conditioners, and more specifically, to a central air conditioner distributor. Background Art

[0002] Central air conditioning distributors are components that manage multiple flow paths between indoor and outdoor heat exchangers in air conditioning systems. However, the distributor's inlet pipes typically have a large flow area, which reduces refrigerant pressure and causes gas-liquid separation. This separation, under the influence of gravity, can easily create an uneven flow pattern, leading to uneven and random flow variations during the distribution process, ultimately impacting the heat exchange performance of the heat exchanger.

[0003] Chinese utility model patent application number 202322998302.X discloses a turbulent air conditioning distributor, which promotes gas-liquid mixing by turbulent flow by setting spiral blades in the pipeline. However, the liquid flow in the distributor usually has a relatively fast speed, and the action time of the spiral blades on the unit liquid flow is short, the disturbance of the liquid flow is not large, and the fluid pushed by the spiral blades usually maintains the form of large bubbles or large droplets, which limits its mixing effectiveness. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a central air-conditioning distributor with uniform liquid flow.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A central air conditioning distributor comprises a pipe body, one end of which is provided with a plurality of diversion holes, the other end of which is a connecting end, a drainage block, a mounting plate and a buffer net being arranged at intervals within the pipe body, the inner cavity of the pipe body on the side of the drainage block facing the connecting end being a mixing chamber 1, a guide spiral being arranged in the mixing chamber 1, the other side of the drainage block being a mixing chamber 2, an impeller being rotatably mounted on the mounting plate, the impeller being arranged in the mixing chamber 2, a plurality of protrusions being arranged on the inner wall of the mixing chamber 2, and a buffer chamber being formed between the mounting plate and the buffer net.

[0007] The utility model is further configured as follows: the drainage block is annular, the inner ring of the drainage block is a through hole, the end face of the drainage block facing the connection end is configured to be inclined, and the maximum distance from the inner ring surface of the drainage block to the mounting plate is smaller than the maximum distance from the outer ring surface of the drainage block to the mounting plate.

[0008] The present invention is further configured as follows: the guide spiral is arranged along the tube body, the side of the guide spiral connected to the tube body is the outer edge, the other side of the guide spiral is the inner edge, a point on the inner edge is offset toward the diversion hole relative to the corresponding point on the outer edge, and the width of the guide spiral is greater than the radius of the tube body.

[0009] The utility model is further configured as follows: a plurality of flow holes are opened on the mounting plate, the impeller includes a rotating shaft, the rotating shaft is rotatably mounted on the mounting plate, the rotating shaft and the through hole are coaxially arranged, a plurality of blades are symmetrically mounted on the rotating shaft, the blades are arranged in an inclined direction, and a sealing nut is installed on the top end of the rotating shaft.

[0010] The utility model is further configured as follows: the end of the sealing nut facing away from the rotating shaft is pointed, and the tip of the sealing nut faces the through hole.

[0011] The advantages of the utility model are:

[0012] 1. A guide spiral is provided in the mixing chamber. The spiral blades of the guide spiral are tilted downward. When the fluid passes through, part of it spirals downward along the spiral direction, and part of it tilts downward along the width direction of the spiral blade, which has a mixing effect. In addition, the width of the guide spiral is greater than the radius of the tube body, so that the fluid at all positions will inevitably pass through the guide spiral and change the flow direction, realizing forced mixing and improving the uniformity of the fluid;

[0013] 2. An impeller is installed in the second mixing chamber for rotation. The blades of the impeller are arranged in an inclined direction. A number of protrusions are provided on the inner wall of the second mixing chamber. When the fluid passes through, it pushes the blades to rotate, thereby promoting mixed flow. When the fluid is pushed to the inner wall of the second mixing chamber by the blades, it hits the protrusions, which can break up large bubbles or large droplets, thereby improving the degree of gas-liquid mixing, improving the uniformity of the fluid, and improving the heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0015] Figure 2 For the Figure 1 The AA line cross-section shown;

[0016] Figure 3 This is a schematic diagram of the guide spiral structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the impeller structure of the utility model;

[0018] In the figure: 1. Tube body; 11. Drainage block; 12. Mixing chamber 1; 13. Mixing chamber 2; 14. Buffer chamber; 15. Through hole; 2. Guide spiral; 21. Outer edge of the spiral; 22. Inner edge of the spiral; 3. Diverter hole; 4. Mounting plate; 5. Impeller; 51. Rotating shaft; 52. Blades; 53. Cover nut; 6. Buffer net; 7. Bump. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0021] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0022] See also Figure 1-4 , the utility model provides the following technical solutions:

[0023] A central air conditioning distributor includes a pipe body 1, one end of which is provided with a plurality of diversion holes 3, and the other end of the pipe body 1 is a connection end. The refrigerant enters the pipe body 1 from the connection end, and then is diverted through the diversion holes 3 and enters the subsequent heat exchange pipe;

[0024] The pipe body 1 is provided with a drainage block 11, a mounting plate 4 and a buffer net 6 at intervals. The inner cavity of the pipe body 1 on the side of the drainage block 11 facing the connection end is a mixing chamber 12. The mixing chamber 12 is provided with a guide spiral 2, which forces the fluid passing through to mix.

[0025] The other side of the drainage block 11 is the second mixing chamber 13. The impeller 5 is rotatably mounted on the mounting plate 4. The impeller 5 is disposed in the second mixing chamber 13. A number of protrusions 7 are provided on the inner wall of the second mixing chamber 13. When the fluid passes through the impeller 5, it drives the impeller 5 to rotate, so that the fluid is pushed toward the inner wall of the second mixing chamber 13 at the impeller 5, promoting gas-liquid mixing. When the fluid is pushed toward the inner wall, it hits the protrusions 7, causing large fluid clumps to be broken up, thereby enhancing the mixing effect.

[0026] There is a buffer chamber 14 between the mounting plate 4 and the buffer net 6. The fluid flow direction in the mixed flow chamber 2 13 is chaotic. The amount of fluid passing through the mounting plate 4 at each point on the mounting plate 4 is different. After being buffered by the buffer net 6, uniform flow is achieved, ensuring that the flow rate of the fluid entering the diversion hole 3 is uniform, and the gas-liquid distribution is uniform, thereby ensuring the subsequent heat exchange effect.

[0027] The guide spiral 2 is arranged along the tube body 1. The side of the guide spiral 2 connected to the tube body 1 is the outer edge 21, and the other side of the guide spiral 2 is the inner edge 22. A point on the inner edge 22 is offset toward the diversion hole 3 relative to the corresponding point on the outer edge 21. When the fluid passes through the guide spiral 2, part of the fluid spirals downward along the spiral direction of the guide spiral 2, and part of the fluid moves downward along the width direction of the spiral blade of the guide spiral 2. That is, the fluid has multiple flow directions when passing through the guide spiral 2, thereby improving the mixing effect.

[0028] The width of the spiral blades of the guide spiral 2 is greater than the radius of the tube body 1, so that when the fluid passes through the guide spiral 2, it will contact the guide spiral 2 at least once and change its flow direction, so that all the fluid is mixed, thereby improving the mixing effect.

[0029] The drainage block 11 is annular, and the inner ring of the drainage block 11 is a through hole 15. The end face of the drainage block 11 facing the connection end is set to be inclined. The maximum distance from the inner ring surface of the drainage block 11 to the mounting plate 4 is smaller than the maximum distance from the outer ring surface of the drainage block 11 to the mounting plate 4. The drainage block 11 is tilted downward to facilitate the passage of the fluid. When passing through the drainage block 11, it can only flow through the through hole 15 with a smaller area, changing the flow area. The fluid mixes here, which promotes gas-liquid mixing.

[0030] The mounting plate 4 is provided with a plurality of through holes for the fluid to pass through. The impeller 5 includes a rotating shaft 51, which is rotatably mounted on the mounting plate 4. The rotating shaft 51 is coaxially arranged with the through hole 15. A plurality of blades 52 are symmetrically mounted on the rotating shaft 51. The blades 52 are arranged in an inclined direction. When the fluid passes through the impeller 5, it exerts a thrust on the blades 52, thereby driving the impeller 5 to rotate, pushing the fluid at the impeller 5 toward the inner wall of the mixing chamber 13, thereby promoting mixed flow.

[0031] A sealing nut 53 is installed at the top of the rotating shaft 51. The end of the sealing nut 53 facing away from the rotating shaft 51 is pointed, and the tip of the sealing nut 53 faces the through hole 15. The fluid flowing out of the through hole 15 falls along the tip of the sealing nut 53 and falls on the impeller 5 near the rotating shaft 51, and is then pushed to the outside by the impeller 5, thereby extending the length of the mixed flow and improving the mixed flow effect.

[0032] Specifically, a flow-guiding spiral 2 is provided in the mixing chamber 12. The spiral blades of the flow-guiding spiral 2 are tilted downward. When the fluid passes through, part of it spirals downward in the spiral direction, and part of it tilts downward along the width direction of the spiral blade, which has a mixing effect. In addition, the width of the flow-guiding spiral 2 is greater than the radius of the tube body 1, so that the fluid at all positions will inevitably pass through the flow-guiding spiral 2 and change the flow direction, thereby achieving forced mixing and improving the uniformity of the fluid.

[0033] An impeller 5 is rotatably installed in the second mixing chamber 13. The blades 52 of the impeller 5 are arranged in an inclined direction. A number of protrusions 7 are provided on the inner wall of the second mixing chamber 13. When the fluid passes through, it pushes the blades 52 to rotate, thereby promoting mixed flow. When the fluid is pushed toward the inner wall of the second mixing chamber 13 by the blades 52, it hits the protrusions 7, which can break up large bubbles or large droplets, thereby improving the degree of gas-liquid mixing, improving the uniformity of the fluid, and improving the heat exchange effect.

[0034] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0036] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar pairs of elements and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A central air-conditioning distributor, comprising a pipe body (1), characterized in that: One end of the tube body (1) is provided with a plurality of diversion holes (3), and the other end of the tube body (1) is a connection end. A drainage block (11), a mounting plate (4) and a buffer net (6) are arranged at intervals in the tube body (1). The inner cavity of the tube body (1) on the side of the drainage block (11) facing the connection end is a mixing chamber (12), and a guide spiral (2) is arranged in the mixing chamber (12). The other side of the drainage block (11) is a mixing chamber (13). An impeller (5) is rotatably mounted on the mounting plate (4), and the impeller (5) is arranged in the mixing chamber (13). A plurality of protrusions (7) are arranged on the inner wall of the mixing chamber (13). A buffer chamber (14) is provided between the mounting plate (4) and the buffer net (6).

2. A central air conditioning distributor according to claim 1, characterized in that: The drainage block (11) is annular, the inner ring of the drainage block (11) is a through hole (15), the end surface of the drainage block (11) facing the connection end is arranged in an inclined shape, and the maximum distance between the inner ring surface of the drainage block (11) and the mounting plate (4) is smaller than the maximum distance between the outer ring surface of the drainage block (11) and the mounting plate (4).

3. A central air conditioning distributor according to claim 2, characterized in that: The guide spiral (2) is arranged along the tube body (1); the side of the guide spiral (2) connected to the tube body (1) is an outer edge (21); the other side of the guide spiral (2) is an inner edge (22); a point on the inner edge (22) is offset toward the diversion hole (3) relative to a corresponding point on the outer edge (21); and the width of the guide spiral (2) is greater than the radius of the tube body (1).

4. A central air conditioning distributor according to claim 3, characterized in that: The mounting plate (4) is provided with a plurality of through-holes. The impeller (5) comprises a rotating shaft (51) which is rotatably mounted on the mounting plate (4). The rotating shaft (51) and the through-hole (15) are coaxially arranged. A plurality of blades (52) are symmetrically mounted on the rotating shaft (51). The blades (52) are arranged in an inclined direction. A sealing nut (53) is mounted on the top end of the rotating shaft (51).

5. A central air conditioning distributor according to claim 4, characterized in that: The end of the sealing nut (53) facing away from the rotating shaft (51) is pointed, and the tip of the sealing nut (53) faces the through hole (15).

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