CN111692783A - Shunt and air conditioner with same - Google Patents

Abstract

The invention provides a flow divider and an air conditioner with the same. The shunt includes: a housing having an inlet and at least two outlets; the rotational flow core body is arranged in the shell, so that the gas-liquid two-phase fluid entering from the inlet flows through the rotational flow core body and is uniformly mixed and then flows out from the at least two outlets; wherein, the shell is an integrated structure. The shunt solves the problem that the shunt in the prior art is complex to process and assemble.

Description

Shunt and air conditioner with same

Technical Field

The invention relates to the field of air conditioning equipment, in particular to a flow divider and an air conditioner with the same.

Background

In air conditioning equipment, a heat exchanger composed of a plurality of heat exchange units is widely adopted to improve the heat exchange capacity of the heat exchanger to the maximum extent, and one of the key technologies is to uniformly distribute a gas-liquid two-phase mixture of a refrigerant to the heat exchange units. To achieve the purpose, a flow divider is arranged in the air conditioning equipment, so that the gas-liquid two-phase refrigerant flowing out after the expansion valve is throttled is distributed to each coil pipe through the flow divider.

However, the flow divider in the prior art is composed of an air inlet pipe, a spiral flow mixing device and a flow dividing head; the air inlet pipe and the shunt head are connected in a sealing mode to form a shell of the shunt, the air inlet pipe and the shunt head are complex in machining and assembling, welding is needed, and production cost is high.

Disclosure of Invention

The invention mainly aims to provide a flow divider and an air conditioner with the same, and aims to solve the problem that the flow divider in the prior art is complex to process and assemble.

To achieve the above object, according to one aspect of the present invention, there is provided a flow divider comprising: a housing having an inlet and at least two outlets; the rotational flow core body is arranged in the shell, so that the gas-liquid two-phase fluid entering from the inlet flows through the rotational flow core body and is uniformly mixed and then flows out from the at least two outlets; wherein, the shell is an integrated structure.

Further, the shell comprises an inlet section and a rotational flow section, and the rotational flow core body is arranged in the rotational flow section; the cyclone section is of a tubular structure, the inlet section is of a circular truncated cone structure, and the cyclone section is connected with the large-diameter end of the circular truncated cone structure.

Further, the side wall of the first area of the rotational flow section protrudes towards the cavity of the rotational flow section to form a first protruding part; the second region side wall of the rotational flow section protrudes towards the cavity of the rotational flow section to form a second protruding portion, and the rotational flow core body is limited between the first protruding portion and the second protruding portion.

Further, the third area lateral wall of whirl section is protruding in order to form the third bellying in the cavity of whirl section, and the whirl core is spacing between third bellying and entering section.

Further, the shell further comprises a connecting section which is of a tubular structure and is connected with the small-diameter end of the circular truncated cone structure.

Further, the inlet section and the connecting section are both formed by a spinning process.

Further, a portion of the sidewall of the connecting section protrudes toward the cavity of the connecting section to form a fourth protrusion.

Furthermore, the shell also comprises an outlet section, and the outlet section is connected with one end of the cyclone section far away from the inlet section; the cyclone section is provided with a cyclone cavity, and the cyclone cavity extends to the outlet section from one end of the cyclone core body close to the outlet section; the outlet section forms at least two communicating pipes, the at least two communicating pipes and the at least two outlets are arranged in a one-to-one correspondence mode, one end of each communicating pipe is communicated with the cyclone chamber, and the other end of each communicating pipe forms a corresponding outlet.

Further, the outlet section is formed by a punching process to form at least two communicating tubes.

According to another aspect of the present invention, there is provided an air conditioner comprising a flow divider, wherein the flow divider is the flow divider described above.

The flow divider comprises a shell and a rotational flow core body arranged in the shell, wherein a gas-liquid two-phase fluid enters the shell from an inlet, flows through the rotational flow core body, is uniformly mixed and flows out from at least two outlets; the cyclone core body has the functions of enabling fluid to generate cyclone and fully mixing the fluid in the cyclone cavity, so that the mixing uniformity, distribution uniformity and stability of the air-conditioning refrigerant gas-liquid mixture are improved, the efficiency of the heat exchanger is improved, and the performance fluctuation of the air conditioner is reduced; the shell of the flow divider is of an integrally formed structure, the processing technology is simple, and the cost is low; welding is reduced, and reliability and stability are improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural view of a first embodiment of a flow diverter according to the present invention;

FIG. 2 shows a cross-sectional view of a first embodiment of a flow diverter according to the present invention;

FIG. 3 illustrates a bottom view of a first embodiment of a flow diverter according to the present invention;

FIG. 4 illustrates a schematic flow diagram of the fluid within the flow diverter according to the present invention;

FIG. 5 shows a schematic view of an embodiment of a third lobe in a second embodiment of a flow diverter according to the present invention;

FIG. 6 shows a schematic structural view of another embodiment of a third lobe in a second embodiment of a flow diverter according to the present invention;

FIG. 7 illustrates a cross-sectional view of another embodiment of a third lobe in a second embodiment of a flow splitter in accordance with the present invention;

FIG. 8 shows a schematic view of a swirl core of a flow diverter according to the present invention;

FIG. 9 shows a bottom view of the swirl core of the flow splitter according to the present invention;

figure 10 shows a side view of a swirl core of a flow diverter according to the invention.

Wherein the figures include the following reference numerals:

10. a housing; 11. an inlet; 12. an outlet; 13. entering a section; 14. a cyclone section; 141. a first boss portion; 142. a second boss portion; 143. a third boss portion; 144. a vortex chamber; 15. a connecting section; 151. a fourth boss; 16. an outlet section; 161. a communicating pipe; 20. a swirl core body; 21. and (4) a swirling groove.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The present invention provides a flow divider, please refer to fig. 1 to 10, which includes: a housing 10, the housing 10 having an inlet 11 and at least two outlets 12; the rotational flow core body 20 is arranged in the shell 10, so that the gas-liquid two-phase fluid entering from the inlet 11 flows through the rotational flow core body 20 and is uniformly mixed and then flows out from the at least two outlets 12; wherein, the housing 10 is an integrally formed structure.

The flow divider comprises a shell 10 and a rotational flow core body 20 arranged in the shell 10, wherein gas-liquid two-phase fluid enters the shell 10 from an inlet 11, flows through the rotational flow core body 20, is uniformly mixed and flows out from at least two outlets 12; the cyclone core body 20 has the functions of enabling fluid to generate cyclone and fully mixing in the cyclone cavity, so that the mixing uniformity, distribution uniformity and stability of air-conditioner refrigerant gas-liquid mixture are improved, the efficiency of a heat exchanger is improved, and the performance fluctuation of an air conditioner is reduced; the shell 10 of the flow divider is of an integrally formed structure, the processing technology is simple, and the cost is low; welding is reduced, and reliability and stability are improved.

As shown in fig. 1 and 2, the casing 10 includes an intake section 13 and a swirl section 14, a swirl core 20 being disposed within the swirl section 14; the cyclone section 14 is of a tubular structure, the inlet section 13 is of a circular truncated cone structure, and the cyclone section 14 is connected with the large-diameter end of the circular truncated cone structure.

The structure of the swirling core 20 is as shown in fig. 8 to 10, and the swirling core 20 includes a core body, and the core body has a first end face and a second end face which are oppositely arranged along the axial direction of the flow divider; the core body is provided with a plurality of swirl grooves 21, the swirl grooves 21 are arranged on the circumferential side surface of the core body at intervals, and each swirl groove 21 extends from the first end surface to the second end surface; the swirl grooves 21 are arranged obliquely with respect to the axial direction of the flow divider. Specifically, the gas-liquid two-phase fluid passes through the swirl core 20 by the swirl grooves 21.

Optionally, the optimal value of the included angle α of the circular truncated cone structure is greater than or equal to 45 ° and less than or equal to 110 °, as shown in fig. 2.

Specifically, the inlet section 13 is trumpet-shaped and formed by reducing and shrinking the shell, and the optimal value of the included angle alpha of the trumpet opening is more than or equal to 45 degrees and less than or equal to 110 degrees, as shown in fig. 2.

In the first embodiment, the first region sidewall of the swirl section 14 is convex toward the cavity of the swirl section 14 to form a first convex portion 141; the second region side wall of the swirl section 14 bulges towards the interior of the swirl section 14 to form a second boss 142, the swirl core 20 being trapped between the first boss 141 and the second boss 142. This arrangement achieves the fixing of the swirl core 20.

Alternatively, the first protrusion 141 is an annular protrusion (as shown in fig. 1 and 2) or a plurality of convex points spaced along the circumference of the cyclone segment 14; the second protrusion 142 is an annular protrusion (as shown in fig. 1 and 2) or a plurality of raised points spaced along the circumference of the cyclone segment 14.

In specific implementation, the first protrusion 141 and the second protrusion 142 are formed by press molding.

In the second embodiment, the third region sidewall of the swirl section 14 projects towards the cavity of the swirl section 14 to form a third projection 143, the swirl core 20 being trapped between the third projection 143 and the entry section 13. This arrangement achieves the fixing of the swirl core 20.

Alternatively, the third protrusion 143 is an annular protrusion (as shown in fig. 5) or a plurality of raised points (as shown in fig. 6 and 7) spaced along the circumference of the swirl section 14.

In specific implementation, the third protrusion 143 is formed by press molding.

As shown in fig. 1 and 2, the housing 10 further includes a connecting section 15, the connecting section 15 is a tubular structure, and the connecting section 15 is connected to the small diameter end of the circular truncated cone structure.

In the present embodiment, the entry section 13 and the connection section 15 are both formed by a spinning process, i.e., the entry section 13 and the connection section 15 are both formed by a spinning technique (also called a metal spinning technique). The shell is of an integrally formed structure due to the arrangement, the processing technology is simple, and the cost is low.

As shown in fig. 1 and 2, a portion of the sidewall of the connecting section 15 protrudes toward the cavity of the connecting section 15 to form a fourth protrusion 151. Alternatively, the fourth protrusion 151 is an annular protrusion or a plurality of protruding points spaced along the circumference of the connecting segment 15 (as shown in fig. 1 and 2). This arrangement allows for axial retention of the connection tube to which the connection segment 15 is connected.

In specific implementation, the fourth protrusion 151 is formed by press molding.

As shown in fig. 1 and 2, the casing 10 further includes an outlet section 16, the outlet section 16 being connected to an end of the cyclone section 14 remote from the inlet section 13; the swirl section 14 has a swirl chamber 144, the swirl chamber 144 extends from the end of the swirl core 20 near the outlet section 16 to the outlet section 16; the outlet section 16 forms at least two communication pipes 161, the at least two communication pipes 161 are disposed in one-to-one correspondence with the at least two outlets 12, one end of each communication pipe 161 communicates with the cyclone chamber 144, and the other end of each communication pipe 161 forms a corresponding outlet 12.

Specifically, the swirling chamber 144 is a space for providing swirling mixing of the fluid, and the height of the swirling chamber 144 is L and the diameter is D, wherein 0.5D < L < 2D.

In the present embodiment, the outlet section 16 is formed by a punching process to form at least two communicating tubes 161.

Specifically, the communication pipes 161 are arranged in parallel in the radial direction of the flow divider, and are formed by a press process for flattening the housing 10.

In the specific implementation, before the upper part of the shell 10 of the flow divider, namely the inlet section and the connecting section, is reduced, the rotational flow core 20 is put into the shell 10 and then reduced.

The throttled refrigerant is a gas-liquid two-phase mixture, enters the flow divider and is distributed to each path of coil pipe through the flow divider, and the sufficient mixing of the gas phase and the liquid separation uniformity has important influence on the effect of the heat exchanger. Gas-liquid two-phase refrigerant enters from an inlet of the flow divider shell, flows through the rotational flow core body to generate rotational flow, is uniformly mixed in the rotational flow cavity, and is uniformly distributed to each branch pipe through a plurality of flow dividing holes of the flow divider shell.

The invention also provides an air conditioner, which comprises the flow divider, wherein the flow divider is the flow divider in the embodiment.

The shell 10 of the flow divider is integrally formed and assembled with the rotational flow core body 20, the machining process is simple, the cost is low, welding is reduced, and reliability and stability are improved. The cyclone flow divider has the advantages of ensuring the uniform mixing and distribution of gas and liquid phases, solving the process problem, improving the efficiency, reducing the cost and reducing the noise of the flow divider.

The working principle of the air conditioner refrigerant flowing through the flow divider is as follows: the air conditioner refrigerant enters from the inlet 11 of the flow divider, is usually in a gas-liquid two-phase state, and forms a strong rotational flow in the rotational flow cavity 144 after passing through the rotational flow core body 20 of the flow divider, the refrigerant has no obvious tangential speed before the rotational flow core body 20, and the refrigerant obtains a larger tangential speed after passing through the rotational flow core body 20 and has a spiral flowing trend, so that the refrigerant is reduced to form an obvious gas-liquid boundary under the action of gravity, and the gas and the liquid are mixed more uniformly. And finally, fully mixing the gas-liquid two-phase mixture of the refrigerant and uniformly distributing the mixture to the heat exchange units, so that the performance of the whole machine is improved.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

the flow divider comprises a shell 10 and a rotational flow core body 20 arranged in the shell 10, wherein gas-liquid two-phase fluid enters the shell 10 from an inlet 11, flows through the rotational flow core body 20, is uniformly mixed and flows out from at least two outlets 12; the cyclone core body 20 has the functions of enabling fluid to generate cyclone and fully mixing in the cyclone cavity, so that the mixing uniformity, distribution uniformity and stability of air-conditioner refrigerant gas-liquid mixture are improved, the efficiency of a heat exchanger is improved, and the performance fluctuation of an air conditioner is reduced; the shell 10 of the flow divider is of an integrally formed structure, the processing technology is simple, and the cost is low; welding is reduced, and reliability and stability are improved.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

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 by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A flow splitter, comprising:

a housing (10), said housing (10) having an inlet (11) and at least two outlets (12);

the rotational flow core body (20) is arranged in the shell (10), so that the gas-liquid two-phase fluid entering from the inlet (11) flows through the rotational flow core body (20) and is uniformly mixed, and then flows out from the at least two outlets (12);

wherein, the shell (10) is an integrated structure.

2. The flow divider according to claim 1, characterized in that the housing (10) comprises an entry section (13) and a swirl section (14), the swirl core (20) being arranged within the swirl section (14); the cyclone section (14) is of a tubular structure, the inlet section (13) is of a circular truncated cone structure, and the cyclone section (14) is connected with the large-diameter end of the circular truncated cone structure.

3. The flow diverter according to claim 2, wherein the first region sidewall of the swirl section (14) bulges towards the cavity of the swirl section (14) to form a first bulge (141); a second region sidewall of the swirl section (14) projects towards the cavity of the swirl section (14) to form a second boss (142), the swirl core (20) being trapped between the first boss (141) and the second boss (142).

4. A diverter according to claim 2, characterized in that the third area side wall of the swirl section (14) is raised towards the cavity of the swirl section (14) to form a third raised portion (143), the swirl core (20) being trapped between the third raised portion (143) and the entry section (13).

5. The flow diverter according to claim 2, wherein the housing (10) further comprises a connecting section (15), the connecting section (15) being a tubular structure, the connecting section (15) being connected to a small diameter end of the circular truncated cone structure.

6. The flow divider according to claim 5, characterized in that the entry section (13) and the connection section (15) are both formed by a spinning process.

7. The flow splitter according to claim 5, characterized in that part of the side wall of the connecting section (15) is convex towards the cavity of the connecting section (15) to form a fourth convex portion (151).

8. The flow divider according to any of claims 2 to 7, characterized in that the housing (10) further comprises an outlet section (16), the outlet section (16) being connected with an end of the swirl section (14) remote from the inlet section (13); the swirl section (14) having a swirl chamber (144), the swirl chamber (144) extending from an end of the swirl core (20) proximate the outlet section (16) to the outlet section (16);

the outlet section (16) forms at least two communicating pipes (161), at least two communicating pipes (161) and at least two outlets (12) are arranged in a one-to-one correspondence mode, one end of each communicating pipe (161) is communicated with the vortex chamber (144), and the other end of each communicating pipe (161) forms the corresponding outlet (12).

9. The flow divider according to claim 8, characterized in that the outlet section (16) is formed by a stamping process to form at least two of the communicating tubes (161).

10. An air conditioner including a flow divider, wherein the flow divider is as claimed in any one of claims 1 to 9.

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