CN215892865U

CN215892865U - Flow divider

Info

Publication number: CN215892865U
Application number: CN202122375189.0U
Authority: CN
Inventors: 史俊茹
Original assignee: Zhejiang Dunan Artificial Environment Co Ltd
Current assignee: Zhejiang Dunan Artificial Environment Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-02-22
Anticipated expiration: 2031-09-29

Abstract

The utility model provides a flow divider which comprises a body, a flow dividing convex tip and a liquid homogenizing device. This internal sprue and a plurality of subchannels that communicate with the sprue that are provided with of mainstream way, be provided with the liquid equalizing ware in the mainstream way, the liquid equalizing ware has towards the top surface of mainstream way and towards the bottom surface of subchannel, the inside of liquid equalizing ware is provided with the through-hole, the axis of through-hole is on a straight line with the axis of body, the through-hole forms the entry on the top surface of liquid equalizing ware, form the export on the bottom surface of liquid equalizing ware, the diameter of through-hole is crescent or is dwindled gradually to the export by the entry, be provided with concave-convex structure on the inner wall of through-hole, the top of the protruding point of reposition of redundant personnel flushes or is less than the bottom surface of liquid equalizing ware with the bottom surface of liquid ware. By adopting the structure, the utility model can realize the full and uniform mixing of the two-phase fluid in the liquid homogenizer, thereby achieving the purpose of uniform liquid separation.

Description

Flow divider

Technical Field

The utility model relates to the field of air conditioner flow dividers, in particular to a flow divider capable of fully mixing uniform two-phase refrigerant.

Background

In the refrigeration cycle of the air conditioner, the heat exchange efficiency of the heat exchanger plays a crucial role in the performance of the whole system, the shunt is one of important factors influencing the uniform heat exchange of each pipeline of the heat exchanger, and in order to improve the heat exchange efficiency of the heat exchanger, a plurality of paths of heat exchange pipelines are often adopted, namely, the refrigerant entering the heat exchanger is shunted.

The refrigerant is usually a gas-liquid two-phase refrigerant, so the uniformity of distribution of the refrigerant into each heat exchange pipe is very important. In practical application, two-phase refrigerants usually pass through the throttling ring or the nozzle before entering the heat exchange channel, however, because the shape and the inner surface of the throttling ring or the nozzle cannot form matching mixing of the two-phase refrigerants, the two-phase refrigerants cannot be fully and uniformly mixed when flowing through the flow divider, and the liquid distribution of the refrigerants entering each heat exchange pipeline is not uniform, so that the heat exchange capacity of the heat exchanger cannot be fully utilized.

SUMMERY OF THE UTILITY MODEL

It is a primary object of the present invention to overcome at least one of the above-mentioned drawbacks of the prior art and to provide a flow divider which can achieve uniform liquid distribution by mixing two-phase refrigerants.

In order to achieve the purpose, the utility model adopts the following technical scheme:

according to one aspect of the present invention, there is provided a flow divider comprising a body, a main flow passage, a plurality of branch flow passages, a flow dividing convex tip and a liquid uniformizing means. This internal sprue and with a plurality of subchannels of sprue intercommunication, a plurality of subchannels are followed the circumferencial direction of the axis of body arranges, and the axis position of body forms a reposition of redundant personnel protruding point be provided with the liquid uniformizing ware in the sprue, the liquid uniformizing ware has towards the top surface of sprue and towards the bottom surface of subchannel, the inside of liquid uniformizing ware is provided with the through-hole, the axis of through-hole with the axis of body is on a straight line, the through-hole have with the entry that the top surface of liquid uniformizing ware flushes, the through-hole have with the export that the bottom surface of liquid uniformizing ware flushes, the diameter of through-hole by the entry to export crescent or reduce gradually, be provided with concave-convex structure on the inner wall of through-hole.

According to an embodiment of the utility model, the top of the flow distribution convex tip is flush with or lower than the bottom surface of the liquid homogenizer.

According to an embodiment of the utility model, the top of the flow distribution convex tip is 0-5mm lower than the bottom surface of the liquid homogenizer.

According to an embodiment of the utility model, the top of the flow distribution convex tip is 1-3mm lower than the bottom surface of the liquid homogenizer.

According to an embodiment of the utility model, the through hole is a conical hole or a venturi hole.

According to an embodiment of the utility model, the diameter of the inlet of the through hole and the diameter of the outlet of the through hole satisfy 0.25< D/D < 4, where D is the diameter of the inlet and D is the diameter of the outlet.

According to an embodiment of the utility model, the diameter of the inlet of the through hole and the diameter of the outlet of the through hole satisfy 0.5< D/D < 3, where D is the diameter of the inlet and D is the diameter of the outlet.

According to an embodiment of the utility model, the relief structure is an internal thread structure.

According to an embodiment of the utility model, the relief structure is an annular groove or an annular protrusion.

According to an embodiment of the utility model, the relief structure is an axial relief structure or an axial groove structure.

According to the technical scheme, the shunt has the advantages and positive effects that:

according to the flow divider provided by the utility model, the liquid homogenizing device is arranged on the inner wall of the main flow channel, the through hole with the diameter gradually increased or reduced is formed in the liquid homogenizing device, and the concave-convex structure is arranged on the inner wall of the through hole, so that two-phase refrigerants can be fully collided and mixed after flowing into the liquid homogenizing device, the two-phase flow pattern is improved, the technical problem that the heat exchange capacity of a heat exchanger cannot be fully utilized due to the fact that the two-phase refrigerants entering each heat exchange pipeline are not uniform because the two-phase refrigerants cannot be fully mixed when flowing through the flow divider in the prior art is solved, and the technical effect that the two-phase refrigerants can be fully mixed and uniformly after passing through the flow divider is achieved.

Drawings

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 shows a schematic view of the structure of the diverter of the present invention.

Fig. 2 is a bottom view of the flow diverter shown in fig. 1.

Fig. 3 shows a 3D schematic of the liquid homogenizer of the flow splitter of the present invention.

Fig. 4 is a sectional view of the homogenizer shown in fig. 3.

Fig. 5 shows a first specific structure of the flow divider of the present invention.

Fig. 6 shows a second specific structure of the flow divider of the present invention.

Fig. 7 shows a third concrete structure of the flow divider according to the utility model (the relief structure is not shown).

FIG. 8 is a schematic diagram showing a specific structure of the liquid homogenizer of the present invention.

Fig. 9 is a bottom view of the homogenizer shown in fig. 8.

FIG. 10 is a schematic view showing another specific structure of the liquid homogenizer of the present invention.

Fig. 11 is a bottom view of the homogenizer of fig. 10.

Wherein the reference numerals are as follows:

100-a flow divider;

101-a body;

102-a primary flow channel;

103-a shunt;

104-a shunt convex tip;

105-homogenizing device;

106-top surface of the homoliquid device;

107-the bottom surface of the liquid homogenizing device;

108-through holes inside the homogenizer;

109-refrigerant inlet with through hole formed in the top surface of the homodyne;

110-outlet of refrigerant formed by through hole on the bottom of liquid homogenizing device;

111-relief structure;

301-a thread;

501-annular groove;

601-an annular projection;

801-axial grooves;

1001-axial projection.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1 to 2, the flow divider 100 of the present invention includes a main body 101, a main flow channel 102, a plurality of branch flow channels 103, a flow dividing convex tip 104, and a liquid homogenizing device 105. The main body 101 is internally provided with a main flow passage 102 and a plurality of branch flow passages 103 communicated with the main flow passage 102, the branch flow passages 103 are arranged along the circumferential direction of the central axis of the main body 101, a branch flow convex tip 104 is formed at the central axis of the main body 101, the inner wall of the main flow passage 102 is provided with a liquid homogenizing device 105, the liquid homogenizing device 105 is provided with a top surface 106 facing the main flow passage 102 and a bottom surface 107 facing the branch flow passages 103, a through hole 108 is arranged inside the liquid homogenizing device 105, the central axis of the through hole 108 and the central axis of the main body 101 are on the same straight line, the through hole 108 is provided with an inlet 109 flush with the top surface 106 of the liquid homogenizing device 105 and an outlet 110 flush with the bottom surface 107 of the liquid homogenizing device 105, the diameter of the through hole 108 is gradually increased or decreased from the inlet 109 to the outlet 110, and a concave-convex structure 111 is arranged on the inner wall of the through hole 108. It should be noted that: the sub-runners 103 may be arranged obliquely or vertically; the device can be uniformly arranged along the circumference or non-uniformly arranged; the liquid homogenizer 105 is installed at the inner wall of the main flow passage 102 by a screw thread or welding.

In this embodiment, the top of the flow dividing convex tip 104 is flush with the bottom surface 107 of the liquid equalizer 105 or lower than the bottom surface 107 of the liquid equalizer 105, so that the two-phase refrigerant can be fully mixed in the liquid equalizer 105 and then flow into the flow dividing channel 103, thereby achieving uniform liquid distribution.

As shown in fig. 3 to 4, the liquid homogenizer 105 of the present invention is provided with a through hole 108 inside, and the diameter of an inlet 109 of the through hole 108 and the diameter of an outlet 110 of the through hole 108 satisfy 0.25< D/D < 4, where D is the diameter of the inlet and D is the diameter of the outlet, and if D is less than 0.25 or greater than 4, after two-phase refrigerant enters the liquid homogenizer, the two-phase refrigerant is not uniformly distributed in the concave-convex structure of the liquid homogenizer, and there are some spaces without refrigerant and some spaces with much refrigerant, so that the two-phase refrigerant cannot be uniformly distributed on the inner surface of the whole through hole, thereby affecting the effect of uniform mixing. The diameter of the inlet 109 and the diameter of the outlet 110 preferably satisfy 0.5< D/D < 3; the inner wall of the through hole 108 is provided with a thread 301, the through hole 108 is a tapered hole in the embodiment, and the through hole 108 may also be a venturi hole in other embodiments (as shown in fig. 7).

As shown in fig. 5, in an embodiment of the present invention, the diameter of the through hole 108 of the liquid homogenizer 105 gradually decreases from the inlet 109 to the outlet 110, and the distance between the top of the flow distribution convex tip 104 and the bottom surface 107 of the liquid homogenizer 105 is 0-5mm, preferably 1-3mm, and may also be 1.5mm, 2mm, 2.5mm, 3.5mm, or 4mm, so that the two-phase refrigerant can be fully mixed in the liquid homogenizer and then flow into the flow distribution channel, thereby better achieving liquid distribution uniformity. In the present embodiment, an annular groove 501 is provided on the inner wall of the through-hole 108. It should be noted that the annular groove may be disposed on the inner wall of the through hole 108 in other embodiments.

As shown in FIG. 6, in one embodiment of the present invention, the diameter of the through hole 108 of the homogenizer 105 gradually increases from the inlet 109 to the outlet 110, and the distance from the top of the flow distribution protrusion 104 to the bottom 107 of the homogenizer 105 is 0-5mm, preferably 1-3mm, and may also be 1.5mm, 2mm, 2.5mm, 3.5mm or 4 mm. The two-phase refrigerant can be fully mixed in the liquid homogenizing device and then flows into the branch channel, so that the liquid is better and uniformly distributed. In the present embodiment, an annular protrusion 601 is provided on the inner wall of the through hole 108. It should be noted that the annular protrusion may be disposed on the inner wall of the through hole 108 in other embodiments.

As shown in fig. 8 to 9, in an embodiment of the present invention, the concave-convex structure on the inner wall of the through hole 108 of the homogenizer 105 is an axial groove structure 801.

As shown in fig. 10 to 11, in an embodiment of the present invention, the concave-convex structure on the inner wall of the through hole 108 of the liquid homogenizer 105 is an axial convex structure 1001.

The foregoing is a detailed description of several exemplary embodiments of the flow diverter proposed by the present invention, and the following is a description of the principles and operation of the flow diverter proposed by the present invention.

With reference to fig. 1 to 11, in the flow divider of the present invention, after the liquid-gas two-phase refrigerant flows into the through hole of the liquid equalizer from the main flow channel, the two-phase refrigerant is optimized to a two-phase flow pattern inside the liquid equalizer because the inner wall surface of the through hole is a conical surface or a venturi surface, so that the two-phase refrigerant can smoothly and uniformly enter each sub-flow channel, thereby reducing flow resistance and flow noise; and the through-hole internal face sets up concave-convex structure, specifically can be screw thread, recess or protruding structure, and the top of reposition of redundant personnel convex tip flushes with the bottom surface of liquid uniformizing ware or is less than the bottom surface of liquid uniformizing ware, can make two-phase refrigerant fully collide the gyration in liquid uniformizing ware inside, fluid disturbance with higher speed to realize intensive mixing, reach the purpose of even minute liquid.

The utility model has the advantages that the liquid homogenizing device is arranged in the main flow channel, the liquid homogenizing device is provided with the top surface facing the main flow channel and the bottom surface facing the branch flow channel, the through hole is arranged in the liquid homogenizing device, the central axis of the through hole and the central axis of the body are on the same straight line, the through hole forms an inlet on the top surface of the liquid homogenizing device, an outlet is formed on the bottom surface of the liquid homogenizing device, the diameter of the through hole is gradually increased or gradually reduced from the inlet to the outlet, the inner wall of the through hole is provided with the concave-convex structure, the top of the shunting convex tip is flush with or lower than the bottom surface of the liquid homogenizing device, so that the gas-liquid two-phase refrigerant is fully collided and uniformly mixed, the flow pattern is optimized, and the technical problem that the heat exchange capacity of the heat exchanger cannot be fully utilized due to the fact that the two-phase refrigerant entering each heat exchange pipeline is not uniform when flowing through the flow divider in the prior art is solved, the technical effect that the two-phase refrigerant can be fully and uniformly mixed after passing through the flow divider is achieved.

Embodiments of the utility model are not limited to the specific embodiments described herein, but rather, components of each embodiment may be utilized independently and separately from other components described herein. Each component of one embodiment can also be used in combination with other components of other embodiments. In the description herein, reference to the term "one embodiment," "some embodiments," "other embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the present invention.

Claims

1. A flow splitter, characterized by: the liquid distributor comprises a body, this internal sprue that is provided with and with a plurality of subchannels of sprue intercommunication, a plurality of subchannels are followed the circumferencial direction of the axis of body arranges, and the axis position of body forms the protruding point of reposition of redundant personnel be provided with the liquid uniformizing ware in the sprue, the liquid uniformizing ware has towards the top surface of sprue and towards the bottom surface of subchannel, the inside of liquid uniformizing ware is provided with the through-hole, the axis of through-hole with the axis of body is on a straight line, the through-hole have with the entry that the top surface of liquid uniformizing ware flushes, the through-hole have with the export that the bottom surface of liquid uniformizing ware flushes, the diameter of through-hole by the entry to export is crescent or is reduced gradually, be provided with concave-convex structure on the inner wall of through-hole.

2. The shunt of claim 1, wherein: the top of the flow distribution convex tip is flush with the bottom surface of the liquid homogenizing device or is lower than the bottom surface of the liquid homogenizing device.

3. The shunt of claim 2, wherein: the top of the shunting convex tip is 0-5mm lower than the bottom surface of the liquid homogenizing device.

4. The shunt of claim 2, wherein: the top of the flow dividing convex tip is 1-3mm lower than the bottom surface of the liquid homogenizing device.

5. The shunt of claim 1, wherein: the through hole is a tapered hole or a Venturi hole.

6. The shunt of claim 1, wherein: the diameter of the inlet of the through hole and the diameter of the outlet of the through hole satisfy 0.25< D/D < 4, wherein D is the diameter of the inlet and D is the diameter of the outlet.

7. The shunt of claim 1, wherein: the diameter of the inlet of the through hole and the diameter of the outlet of the through hole satisfy 0.5< D/D < 3, wherein D is the diameter of the inlet and D is the diameter of the outlet.

8. The shunt of claim 1, wherein: the concave-convex structure is a thread structure.

9. The shunt of claim 1, wherein: the concave-convex structure is an annular groove or an annular bulge.

10. The shunt of claim 1, wherein: the concave-convex structure is an axial convex structure or an axial groove structure.