CN214095050U

CN214095050U - Two-phase flow refrigerant distributor

Info

Publication number: CN214095050U
Application number: CN202022864628.XU
Authority: CN
Inventors: 俞叶春
Original assignee: Shanghai Teda Cold And Warm Technology Co ltd
Current assignee: Shanghai Teda Cold And Warm Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-08-31
Anticipated expiration: 2030-12-03

Abstract

The utility model relates to a two-phase flow refrigerant distributor, include: the first component comprises a first channel and a second channel connected with the first channel, wherein the inlet of the first channel forms the inlet of the first component, the outlet caliber of the first channel is smaller than the inlet caliber of the first channel, the outlet of the second channel forms the outlet of the first component, and the outlet caliber of the second channel is larger than the inlet caliber of the first channel; the second component comprises a pore plate and a convex block arranged on one side of the pore plate, and through holes are formed in the periphery of the convex block on the pore plate; when the first member and the second member are connected, the projection is inserted into the second passage, and the outlet of the first member communicates with the through hole. The utility model discloses a split type distributor, its characteristics are each part easy to process, are favorable to making, then the combination can form multiple inner structure, is favorable to the evenly distributed of the refrigerant of different aridity, is favorable to carrying out the design that corresponds according to the evenly distributed of the two-phase flow of various aridity.

Description

Two-phase flow refrigerant distributor

Technical Field

The utility model relates to a fluid distribution field, concretely relates to two-phase flow refrigerant distributor.

Background

The distributor is widely used in fluid machinery, and the distribution of single-phase fluid is mainly realized by resistance characteristics, so that the distribution is easier to realize; the main difficulty lies in the distribution of two-phase flow, because the density of liquid and gas is inconsistent and the difference is large, the two phases are easy to be uneven, the liquid has surface tension and large particles are easy to form; under the action of gravity, liquid can settle, so that gas and liquid are layered; in addition, under the action of centrifugal force, liquid is easy to throw out and is separated from gas; when the gas-liquid two-phase flows, the viscosity of the gas and the liquid is inconsistent, and the liquid is also caused to be stuck on the pipe wall. Various factors can cause the liquid and gas to not mix uniformly, resulting in difficulty in dispensing.

The common two-phase flow refrigerant distributor adopts a shower head type distributor, is processed on a blank, has high processing difficulty, is easy to break, and is difficult to realize uniform distribution. Some foreign suppliers adopt a casting mode to pour a blank body, and then process an internal structure through an inlet section, so that the processing cost is high. Some occasions need to adopt special materials, meet the requirement of chemical stability, and lead to the infeasible existing processing mode, such as stainless steel material, aluminium material.

Disclosure of Invention

The utility model aims at providing a two-phase flow refrigerant distributor.

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

a two-phase flow refrigerant distributor comprising:

the first component comprises a first channel and a second channel connected with the first channel, wherein the inlet of the first channel forms the inlet of the first component, the outlet caliber of the first channel is smaller than the inlet caliber of the first channel, the outlet of the second channel forms the outlet of the first component, and the outlet caliber of the second channel is larger than the inlet caliber of the first channel;

the second component comprises a pore plate and a convex block arranged on one side of the pore plate, and through holes are formed in the periphery of the convex block on the pore plate;

when the first component and the second component are connected, the lug is inserted into the second channel, and the outlet of the first component is communicated with the through hole.

Preferably, the bore of the first channel decreases from the inlet to the outlet thereof, and the bore of the second channel increases from the inlet to the outlet thereof.

Preferably, the outlet aperture of the first channel is half of the inlet aperture thereof.

Preferably, when the first member and the second member are connected, the central line of the convex part is coincident with the central line of the second channel, and the whole distributor is in an axisymmetric structure.

Preferably, the convex part is a cone. More preferably a cone is used.

Further preferably, the top of the cone is a hemisphere, and the refrigerant uniformly impacts on the hemisphere at the top of the bump 22, so that the refrigerant is uniformly scattered and uniformly distributed.

Still more preferably, the diameter of the hemispherical surface is half of the inlet aperture of the first member.

Preferably, the second passage is tapered, the taper angle being 60 ° to 120 °.

Preferably, the first and second parts are laser welded.

Preferably, the first component and the second component are connected through hot melting.

Preferably, the distributor is made of stainless steel or aluminum.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses a split type distributor, its characteristics are each part easy to process, are favorable to making, then the combination can form multiple inner structure, and the double-phase intensive mixing distribution of well gas-liquid in the refrigerant that is favorable to different aridity is favorable to carrying out the design that corresponds according to the even distribution of the two-phase flow of various aridity.

Drawings

FIG. 1 is a plan sectional view of a two-phase flow refrigerant distributor according to the present embodiment;

fig. 2 is a perspective cross-sectional view of a two-phase flow refrigerant distributor according to the present embodiment.

In the above drawings: 1. a first member; 11. a first channel; 12. a second channel; 13. a throat; 14. an inlet of the first component; 15. an outlet of the first component; 2. a second component; 21. an orifice plate; 210. a through hole; 22. and (4) a bump.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, a two-phase flow refrigerant distributor comprises a first part 1 and a second part 2 which are manufactured in a split mode, the first part 1 and the second part 2 are manufactured separately and then combined into a whole to be used as the distributor, and refrigerant flows into the first part 1 and then flows out through the second part 2 to complete the sufficient mixing and distribution of gas phase and liquid phase. The distributor is made of stainless steel or aluminum, and has the advantages of light weight and easiness in processing while ensuring chemical stability and firmness and durability. Specifically, in this embodiment:

the first component 1 is internally provided with a first channel 11 and a second channel 12, the inlet of the first channel 11 forms the inlet 14 of the first component, the outlet of the first channel 11 is communicated with the inlet of the second channel 12, the outlet of the second channel 12 forms the outlet 15 of the first component, and the inlet of the first channel 11 adopts a rounding process to facilitate the inflow of refrigerant. The inlet caliber of the first channel 11 is larger than the outlet caliber thereof, the channel caliber of the first channel is gradually reduced from the inlet of the first channel 11 to the outlet of the first channel 11, namely, a throat part 13 of the first component 1 is formed at the outlet of the first channel 11, the refrigerant flows into the first channel 11 from the inlet 14 of the first component 1, the flow speed of the liquid is accelerated by reducing the channel caliber when passing through the throat part 13, so that the two-phase flow is fully mixed, and the caliber of the throat part 13 is preferably half of the inlet 14 of the first component. The second channel 12 is tapered, preferably conical, at a taper angle of 60 to 120, most preferably 90, and the throat 13 at the outlet of the first channel 11 forms the inlet to the second channel 12, the outlet aperture of the second channel 12 being larger than the inlet aperture of the first channel 11 and increasing in aperture from the inlet to the outlet of the second channel 12.

The second component 2 comprises a pore plate 21 and a lug 22 arranged on one side of the pore plate 21, a plurality of through holes 210 communicated with two sides are formed in the pore plate 21, and the through holes 210 are uniformly distributed on the periphery of the lug 22. In this embodiment: the projection 22 is tapered, preferably conical, and the projection 22 is smaller than the second channel 12, so that the projection 22 can form a passage with the second channel 12 after the projection 22 is inserted into the second channel 12. The top of the conical projection 22 is ground to remove its tip, for example, to be a hemisphere, the diameter of the hemisphere is half of the aperture of the throat 13, so that the refrigerant can uniformly impact on the hemisphere at the top of the projection 22, and the refrigerant can be uniformly scattered and uniformly distributed.

When the first and

second parts

1 and 2 are connected, the side of the second part 2 having the projection 22 is connected to the first part 1, the projection 22 is inserted into the second passage 12 and the top of the projection 22 faces the center of the throat 13, the through hole 210 communicates with the outlet 15 of the first part, and the center line of the projection 22 coincides with the center line of the second passage 12.

When the first component 1 and the second component 2 are connected, the first component and the second component can be integrated by laser welding; the first member 1 and the second member 2 may be welded together by applying copper foil between the first member and the second member and heating the copper foil at a high temperature.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A two-phase flow refrigerant distributor characterized by: the method comprises the following steps:

2. A two-phase flow refrigerant distributor according to claim 1, wherein: the aperture of the first channel gradually decreases from the inlet to the outlet thereof, and the aperture of the second channel gradually increases from the inlet to the outlet thereof.

3. A two-phase flow refrigerant distributor according to claim 1, wherein: the outlet aperture of the first channel is half of the inlet aperture of the first channel.

4. A two-phase flow refrigerant distributor according to claim 1, wherein: when the first component and the second component are connected, the center line of the lug is coincided with the center line of the second channel.

5. A two-phase flow refrigerant distributor according to claim 1, wherein: the convex block is a cone.

6. A two-phase flow refrigerant distributor according to claim 5, wherein: the top of the cone is a hemispherical surface.

7. A two-phase flow refrigerant distributor according to claim 6, wherein: the diameter of the hemispherical surface is half of the inlet caliber of the first part.

8. A two-phase flow refrigerant distributor according to claim 1, wherein: the second channel is conical, and the conical angle is 60-120 degrees.

9. A two-phase flow refrigerant distributor according to claim 1, wherein: the first part and the second part are welded by laser.

10. A two-phase flow refrigerant distributor according to claim 1, wherein: the first component and the second component are connected through hot melting.