CN114322381A

CN114322381A - Knockout, heat exchanger and air conditioner

Info

Publication number: CN114322381A
Application number: CN202210080398.9A
Authority: CN
Inventors: 张超超; 李丰; 田帆
Original assignee: Midea Group Co Ltd; GD Midea Heating and Ventilating Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Heating and Ventilating Equipment Co Ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-04-12

Abstract

The invention discloses a liquid separator, a heat exchanger and an air conditioner, wherein the liquid separator comprises: divide liquid pipe and first orifice plate, divide the liquid pipe to have inlet and a plurality of spaced-apart minute liquid mouth, be equipped with a plurality of first through-holes on the first orifice plate, first orifice plate is established in dividing the liquid pipe and is located the inlet and a plurality of minute liquid mouth between so that the medium that flows in from the inlet flows to a plurality of minute liquid mouths through first through-hole. According to the liquid distributor provided by the invention, the first pore plate is arranged in the liquid distributing pipe, so that the liquid inlet and the plurality of liquid distributing openings are respectively positioned at two sides of the first pore plate, and the first pore plate is provided with the plurality of first through holes, so that a medium flowing into the liquid distributing pipe from the liquid inlet is accelerated after passing through the first through holes, the medium accelerated by the first pore plate can be uniformly distributed in the liquid distributing pipe, the uniform flow of the medium flowing out of the liquid distributing openings is further ensured, meanwhile, the structure of the liquid distributor is simple, the manufacturing is convenient, and the cost is reduced.

Description

Knockout, heat exchanger and air conditioner

Technical Field

The invention relates to the technical field of air treatment equipment, in particular to a liquid separator, a heat exchanger and an air conditioner.

Background

In the related art, the liquid distributor is used for distributing the medium, and the medium flowing into the liquid distributing pipe is unevenly distributed, so that the medium flowing out of the liquid distributing ports is uneven in flow.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, the invention proposes a liquid distributor which makes it possible to homogenize the flow rate flowing out of a plurality of liquid distribution openings.

Another object of the invention is to propose a heat exchanger with the above-mentioned liquid separator.

Still another object of the present invention is to provide an air conditioner having the above heat exchanger.

The liquid distributor according to the embodiment of the invention comprises: a liquid distribution tube having a liquid inlet and a plurality of spaced apart liquid distribution ports; the first pore plate is provided with a plurality of first through holes, the first pore plate is arranged in the liquid separating pipe and is positioned between the liquid inlet and the liquid separating ports so that a medium flowing from the liquid inlet passes through the first through holes and flows to the liquid separating ports in a plurality.

According to the liquid distributor provided by the embodiment of the invention, the first pore plate is arranged in the liquid distributing pipe, so that the liquid inlet and the plurality of liquid distributing openings are respectively positioned at two sides of the first pore plate, and the first pore plate is provided with the plurality of first through holes, so that a medium flowing into the liquid distributing pipe from the liquid inlet is accelerated after passing through the first through holes, the medium accelerated by the first pore plate can be uniformly distributed in the liquid distributing pipe, the uniform flow of the medium flowing out of each liquid distributing opening is further ensured, meanwhile, the structure of the liquid distributor is simple, the manufacturing is convenient, and the cost is reduced.

According to some embodiments of the invention, the plurality of first through holes includes a plurality of second sub through holes spaced apart in a circumferential direction of the first orifice plate.

In some embodiments of the invention, the second sub-via is an elongated hole.

In some embodiments of the invention, the second sub through hole extends in a circumferential or radial direction of the first orifice plate.

In some embodiments of the invention, the second sub-via is a circular hole.

In some embodiments of the present invention, the plurality of second sub through holes are a plurality of turns arranged at intervals in a radial direction of the first orifice plate.

In some embodiments of the present invention, the plurality of first through holes further includes a first sub through hole located at a center of the first orifice plate.

In some embodiments of the present invention, the total opening area of all the first through holes is At, the total opening area of all the second sub-through holes is Ao, and: Ao/At is more than or equal to 0.25 and less than 1.

In some embodiments of the present invention, a distance between an outer edge of the first orifice plate and a center of the first through hole located at a radially outermost side is w, an inner diameter of the liquid distribution pipe is D, and: w/D is more than or equal to 0.08 and less than or equal to 0.24.

In some embodiments of the present invention, the first orifice plate has an area a, the total opening area of all the first through holes is At, and: At/A is more than or equal to 0.10 and less than or equal to 0.36.

According to some embodiments of the invention, the liquid separation port is disposed on a peripheral wall of the liquid separation tube, and the plurality of liquid separation ports are distributed at intervals along a length direction of the liquid separation tube.

In some embodiments of the present invention, the liquid distribution pipe further includes a plurality of second hole plates, a plurality of second through holes are provided on the second hole plates, and the second hole plates are provided in the liquid distribution pipe and located on one side of the first hole plates, which is far away from the liquid inlet.

In some embodiments of the present invention, both sides of the second orifice plate in the thickness direction have at least one of the liquid separation ports.

In some embodiments of the invention, the second orifice plate has the same structure as the first orifice plate.

According to some embodiments of the invention, the liquid separation device further comprises a plurality of outflow pipes, and the outflow pipes are respectively connected with the liquid separation ports.

In some embodiments of the present invention, a communication pipe is disposed on an outer wall of the liquid distribution pipe and is in communication with the liquid distribution port, and the outflow pipe is connected to the communication pipe.

In some embodiments of the invention, the plurality of outflow tubes are the same length.

The heat exchanger according to the embodiment of the invention comprises the liquid distributor.

According to the heat exchanger provided by the embodiment of the invention, the first pore plate is arranged in the liquid distribution pipe, the liquid inlet and the liquid distribution ports are respectively positioned at two sides of the first pore plate, the first pore plate is provided with the plurality of first through holes, and the refrigerant throttled by the expansion valve is in a gas-liquid two-phase state, so that the refrigerant flowing from the liquid inlet can flow into the pipe of the liquid distribution pipe at an accelerated speed after passing through the first through holes, the liquid can be atomized into fine liquid drops by utilizing the shearing effect of high-speed gas, the gas and liquid are fully and uniformly mixed on the flowing cross section under the carrying of the high-speed gas, the refrigerant flowing into the liquid distribution pipe can be uniformly distributed, the uniform flow of the refrigerant flowing out from each liquid distribution port is further ensured, the heat exchange capacity of the heat exchanger can be maximized, and the structure of the liquid distributor is simple and is convenient to manufacture, and the cost is reduced.

The air conditioner comprises the heat exchanger.

According to the air conditioner provided by the embodiment of the invention, the first pore plate is arranged in the liquid distribution pipe, the liquid inlet and the liquid distribution ports are respectively positioned at two sides of the first pore plate, the first pore plate is provided with the first through holes, and the refrigerant throttled by the expansion valve is in a gas-liquid two-phase state, so that the refrigerant flowing from the liquid inlet can flow into the pipe of the liquid distribution pipe at an accelerated speed after passing through the first through holes, the liquid can be atomized into fine liquid drops by utilizing the shearing effect of high-speed gas, the gas and liquid are fully and uniformly mixed on the flowing cross section under the carrying of the high-speed gas, the refrigerant flowing into the liquid distribution pipe can be uniformly distributed, the uniform flow of the refrigerant flowing out from each liquid distribution port is further ensured, the heat exchange capacity of the heat exchanger can be maximized, and the structure of the liquid distributor is simple and is convenient to manufacture, and the cost is reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of a dispenser according to an embodiment of the present invention;

fig. 2 is a sectional view of a dispenser according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of another angle of a dispenser according to an embodiment of the present invention;

FIG. 4 is a perspective view of a first orifice plate according to an embodiment of the present invention;

FIG. 5 is a perspective view of a first orifice plate according to another embodiment of the present invention;

FIG. 6 is an enlarged view circled at A in FIG. 2;

fig. 7 is a schematic view of a first orifice plate according to a third embodiment of the invention.

Reference numerals:

100. a liquid separator;

1. a liquid separating pipe; 11. a liquid inlet; 12. a liquid separation port; 13. a communicating pipe; 14. introducing a space; 15. a shunting space;

2. a first orifice plate; 21. a first through hole; 211. a first sub-via; 212. a second sub-via;

3. a second orifice plate; 31. a second through hole;

4. and (4) flowing out of the tube.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following describes the dispenser 100 according to an embodiment of the present invention with reference to the accompanying drawings.

As shown in fig. 1, 2 and 4, the dispenser 100 according to an embodiment of the present invention includes a liquid dispensing tube 1 and a first orifice plate 2.

As shown in fig. 1, 2 and 6, the liquid-separating tube 1 has a liquid inlet 11 and a plurality of spaced-apart liquid-separating ports 12. Specifically, the medium can flow in from the liquid inlet 11 of the liquid separating pipe 1 and then flow out from a plurality of spaced liquid separating ports 12. The medium may be a refrigerant or the like.

In the description of the present invention, the term "plurality" means two or more. For example, the number of the plurality of liquid distribution ports 12 may be two, three, four, five, etc., and the specific number of the liquid distribution ports 12 may be adjusted according to the specific specification and model of the liquid distribution tube 1, which is not limited in the present invention.

For example, in the embodiment shown in fig. 1, 2 and 6, the lower end of the liquid separation pipe 1 is open to form the liquid inlet 11, the upper end of the liquid separation port 12 is closed, and the right side of the liquid separation pipe 1 is provided with a plurality of spaced liquid separation ports 12.

As shown in fig. 2, 4 and 6, the first orifice plate 2 is provided with a plurality of first through holes 21, and the first orifice plate 2 is disposed in the liquid distribution pipe 1 and located between the liquid inlet 11 and the plurality of liquid distribution ports 12 so that the medium flowing from the liquid inlet 11 flows to the plurality of liquid distribution ports 12 through the first through holes 21. Specifically, the medium flows from the liquid inlet 11 into the plurality of first through holes 21 passing through the first orifice plate 2, and the medium flowing from the liquid inlet 11 is accelerated to flow out from the first through holes 21 due to a certain pressure difference between both sides in the thickness direction of the first through holes 21. For example, when the medium is in a gas-liquid two-phase state, the medium flowing out of the first through hole 21 can maintain the gas-liquid two-phase state, thereby preventing the medium from being unevenly distributed in the tube of the liquid separation tube 1.

For example, in the embodiment shown in fig. 2, 4 and 6, the space in the liquid separation pipe 1 includes an introduction space 14 and a flow dividing space 15, the space on the side of the first orifice plate 2 close to the liquid inlet 11 is the introduction space 14, the space on the side of the first orifice plate 2 far from the liquid inlet 11 is the flow dividing space 15, the medium flows into the introduction space 14 from the liquid inlet 11, the medium flows into the flow dividing space 15 from the introduction space 14 through the first through holes 21, and the medium flowing into the flow dividing space 15 can be uniformly distributed in the flow dividing space 15 because the medium is accelerated through the first through holes 21.

According to the liquid distributor 100 of the embodiment of the invention, the first pore plate 2 is arranged in the liquid distributing pipe 1, so that the liquid inlet 11 and the plurality of liquid distributing openings 12 are respectively positioned at two sides of the first pore plate 2, and the first pore plate 2 is provided with the plurality of first through holes 21, so that the medium flowing into the liquid distributing pipe 1 from the liquid inlet 11 is accelerated after passing through the first through holes 21, and the medium accelerated by the first pore plate 2 can be uniformly distributed in the liquid distributing pipe 1, thereby ensuring uniform flow of the medium flowing out from each liquid distributing opening 12, and simultaneously, the structure of the liquid distributor 100 is simple, the manufacturing is convenient, and the cost is reduced.

According to some embodiments of the present invention, as shown in fig. 4 and 5, the plurality of first through holes 21 includes a plurality of second sub through holes 212 spaced apart in the circumferential direction of the first orifice plate 2. By providing the plurality of second sub through holes 212 in the first orifice plate 2, the medium passing through the second sub through holes 212 is accelerated, and the medium is atomized into fine droplets by the shearing effect of the high-speed gas, so that the medium is uniformly distributed on the flow cross section of the liquid distribution pipe 1, and the flow rate of the medium flowing out from each liquid distribution port 12 is uniform. For example, when the medium is in a gas-liquid two-phase state, the second sub-through hole 212 can accelerate the gas-liquid medium, atomize the liquid into fine droplets by utilizing the shearing effect of the high-speed gas, and realize sufficient and uniform mixing of the gas and the liquid on the flow-through section under the carrying of the high-speed gas.

According to some embodiments of the present invention, as shown in fig. 4, the second sub-via 212 is an elongated hole. The arrangement can make the acceleration effect of the medium better, and can make full use of the shearing effect of the high-speed gas, thereby further making the medium uniformly distributed on the flow-through section. The shape of the second sub-via 212 may be rectangular, racetrack-shaped, or the like.

According to some embodiments of the present invention, as shown in fig. 4, the second sub through hole 212 extends in a circumferential or radial direction of the first orifice plate 2. Specifically, the second sub through hole 212 may extend in a circumferential direction of the first orifice plate 2, wherein the second sub through hole 211 may extend in a straight line or in an arc shape in the circumferential direction of the first orifice plate 2, and of course, the second sub through hole 211 may also extend in a radial direction of the first orifice plate 2. The arrangement makes the position of the second sub-through hole 212 more reasonable, the acceleration effect of the medium is better, and the shearing effect of the high-speed gas can be more fully utilized, so that the medium is further uniformly distributed on the flow cross section.

For example, in the embodiment shown in fig. 4, the second sub through-hole 212 extends in the circumferential direction of the first orifice plate 2, and the second sub through-hole 212 extends in a straight line, the cross-section of the second sub through-hole 212 has a shape of a racetrack, and a plurality of the second sub through-holes 212 are evenly spaced in the circumferential direction of the first orifice plate 2. In the embodiment shown in fig. 7, the second sub through-hole 212 extends in an arc shape in the circumferential direction of the first orifice plate 2, and the second sub through-hole 212 is formed as an arc-shaped hole.

According to some embodiments of the invention, as shown in fig. 5, the second sub-via 212 is a circular hole. The accelerating effect of the medium can be improved by the arrangement, the shearing effect of high-speed gas can be fully utilized, so that the medium is further uniformly distributed on the flow cross section, meanwhile, the second sub through holes 212 are round holes, the processing is convenient, and the processing efficiency of the first pore plate 2 can be improved.

For example, in the embodiment shown in fig. 5, the second sub through holes 212 are circular holes, and the plurality of second sub through holes 212 are evenly spaced in the circumferential direction of the first orifice plate 2.

According to some embodiments of the present invention, as shown in fig. 6, the plurality of second sub through holes 212 are a plurality of turns arranged at intervals in a radial direction of the first orifice plate 2. This arrangement increases the flow rate of the medium flowing through the first orifice plate 2, thereby increasing the liquid separation efficiency of the liquid separator 100.

For example, in the embodiment shown in fig. 6, the plurality of second sub through holes 212 are uniformly distributed in the circumferential direction of the first orifice plate 2, and are arranged at intervals of two turns in the radial direction of the first orifice plate 2.

Further, in the radial direction of the first orifice plate 2, the plurality of second sub through holes 211 of two adjacent circles are arranged in a staggered manner. It can be understood that the second sub via 212 of one of the two adjacent turns is located between the two adjacent sub vias 212 of the other turn. This can improve the atomization effect on the medium.

According to some embodiments of the present invention, the plurality of first through holes 21 further includes a first sub through hole 211 located at the center of the first orifice plate 2. Through set up first sub through-hole 211 in first orifice plate 2 center, make the acceleration effect through the medium of first sub through-hole 211 better, make the medium more evenly distributed on the circulation cross-section of liquid separating pipe 1 to make the medium more even from the flow that each divides liquid mouth 12 to flow.

For example, in the embodiment shown in fig. 4, the first sub through-hole 211 is located at the center of the first orifice plate 2, the first sub through-hole 211 is formed in a circular shape in cross section, the second sub through-hole 212 extends in the circumferential direction of the first orifice plate 2, the second sub through-hole 212 is formed in a racetrack shape in cross section, and the plurality of second sub through-holes 212 are evenly spaced in the circumferential direction of the first orifice plate 2. In the embodiment shown in fig. 5, the first sub through-hole 211 is located at the center of the first orifice plate 2, the cross-sectional shape of the first sub through-hole 211 is formed in a circular shape, the second sub through-hole is a circular hole, and the plurality of second sub through-holes 212 are evenly spaced in the circumferential direction of the first orifice plate 2.

According to some embodiments of the present invention, the total opening area of all the first through holes 21 is At, the total opening area of all the second sub-through holes 212 is Ao, and: Ao/At is more than or equal to 0.25 and less than 1. The arrangement can enable the hole area of the non-central hole to be larger than that of the central hole, enable more media to pass through the non-central hole and enable the media to be more uniformly distributed on the flow cross section. For example, Ao/At may be 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, or 0.95, etc.

Preferably, 0.6. ltoreq. Ao/At < 1.

According to some embodiments of the present invention, the distance between the outer edge of the first orifice plate 2 and the center of the first through hole 21 located at the outermost side in the radial direction is w, the inner diameter of the liquid distribution pipe 1 is D, and: w/D is more than or equal to 0.08 and less than or equal to 0.24. The arrangement makes the position of the first through hole 21 more reasonable, the acceleration effect of the medium passing through the first through hole 21 is better, and the medium is further uniformly distributed on the flow cross section. For example, w/D may be 0.08, 0.09, 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19, 0.20, 0.21, 0.22, 0.23, 0.24, or the like.

Preferably, 0.12. ltoreq. w/D. ltoreq.0.20.

According to some embodiments of the present invention, the area of the first orifice plate 2 is a, the total opening area of all the first through holes 21 is At, and: At/A is more than or equal to 0.10 and less than or equal to 0.36. Set up like this and can rationally select the total area of the trompil of first through-hole 21 and the area of first orifice plate 2, make the total area of the trompil of first through-hole 21 on the first orifice plate 2 can be by more reasonable design, make the effect of accelerating through the medium of first orifice plate 2 better, can utilize high-speed gaseous shearing effect more fully to further make the medium evenly distributed on the circulation cross-section, can improve the structural strength of first orifice plate 2 simultaneously. For example, the At/a may be 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19, 0.20, 0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, 0.30, 0.31, 0.32, 0.33, 0.34, 0.35, or 0.36, etc.

Preferably, 0.12. ltoreq. At/A. ltoreq.0.24.

According to some embodiments of the present invention, as shown in fig. 2, 3 and 6, the liquid distribution port 12 is disposed on the circumferential wall of the liquid distribution pipe 1, and the plurality of liquid distribution ports 12 are spaced along the length direction of the liquid distribution pipe 1. Specifically, the liquid separation port 12 is connected to the space inside the liquid separation tube 1, and the medium in the liquid separation tube 1 can flow out through the plurality of liquid separation ports 12. This arrangement facilitates the proper distribution of the plurality of dispensing openings 12 and facilitates manufacturing.

For example, in the embodiment shown in fig. 2 and 3, the liquid distribution ports 12 are disposed on the peripheral wall of the liquid distribution pipe 1, and the plurality of liquid distribution ports 12 are disposed on the same side of the liquid distribution pipe 1 and are uniformly spaced along the length direction of the liquid distribution pipe 1.

According to some embodiments of the present invention, as shown in fig. 2, the liquid separator 100 further comprises a plurality of second orifice plates 3, the second orifice plates 3 are provided with a plurality of second through holes 31, and the second orifice plates 3 are arranged in the liquid separating pipe 1 and located on a side of the first orifice plates 2 far away from the liquid inlet 11. The arrangement can accelerate the medium passing through the first orifice plate 2 for the second time, so that the medium flowing into the liquid separating pipe 1 can be distributed uniformly, and the uniform flow rate of the medium flowing out from each liquid separating port 12 is ensured.

According to some embodiments of the present invention, as shown in fig. 2, both sides in the thickness direction of the second orifice plate 3 have at least one liquid-separating port 12. This arrangement can further ensure that the medium flows out from the liquid distribution port 12 on the side of the second orifice plate 3 away from the first orifice plate 2 and flows out from the liquid distribution port 12 on the side of the second orifice plate 3 close to the first orifice plate 2 at a uniform rate.

Optionally, the second perforated plate 3 is multiple, and the multiple second perforated plates 3 are distributed at intervals in the length direction of the liquid distribution pipe 1.

It can be understood that the second pore plate 3 and the liquid separation port 12 are arranged in a staggered manner in the length direction of the liquid separation pipe 1, so that the second pore plate 3 is prevented from blocking the liquid separation port 12.

For example, in the embodiment shown in fig. 2, two second orifice plates 3 are arranged in the liquid distribution pipe 1, the two second orifice plates 3 are spaced apart from each other in the length direction of the liquid distribution pipe 1, the second orifice plate 3 is located on the upper side of the first orifice plate 2, and each second orifice plate 3 is located between two adjacent liquid distribution openings 12, that is, the upper side of the second orifice plate 3 has at least one liquid distribution opening 12, and the lower side of the second orifice plate 3 also has at least one liquid distribution opening 12.

According to some embodiments of the invention, the second orifice plate 3 has the same structure as the first orifice plate 2. Set up like this and make second orifice plate 3 and first orifice plate 2 have the same function, guaranteed that the medium can obtain with the same effect with higher speed when passing through first orifice plate 2, make knockout 100 divide the liquid effect better, also need not redesign second orifice plate 3's structure simultaneously, saved design time, the cost is reduced.

According to some embodiments of the present invention, as shown in fig. 1-3, the dispenser 100 further comprises a plurality of outflow tubes 4, and the plurality of outflow tubes 4 are respectively connected to the plurality of dispensing ports 12. Specifically, the medium flows from the liquid inlet 11 into the liquid dividing pipe 1, then flows from the liquid dividing pipe 1 to the liquid dividing port 12, then flows from the liquid dividing port 12 into the outlet pipe 4, and finally flows out from the outlet pipe 4. Accordingly, the plurality of liquid separation ports 12 of the liquid separator 100 may communicate with the plurality of branches of the heat exchanger through the plurality of outflow pipes 4, so that the flow rate of the refrigerant flowing into each branch of the heat exchanger is uniform. The medium outflow rate can be further adjusted by adjusting the pipe diameter of the outflow pipe 4, so that the optimal flow rate required by each outflow pipe 4 can be matched.

According to some embodiments of the present invention, as shown in fig. 2, 3 and 6, a connection pipe 13 connected to the liquid separation port 12 is provided on an outer wall of the liquid separation pipe 1, and the outflow pipe 4 is connected to the connection pipe 13. Specifically, the communicating tube 13 may be formed by turning the peripheral wall of the liquid separation pipe 1 at the liquid separation port 12 outward.

In the prior art, the outflow pipe is usually inserted into the liquid distribution pipe, and the outflow pipe is connected with the liquid distribution pipe by welding. And can directly be connected communicating pipe 13 and outlet pipe 4 in this application, avoid in the outlet pipe 4 inserts branch liquid pipe 1, when making the medium be gas-liquid two-phase state, can avoid the gas-liquid medium of misce bene to produce gas-liquid separation when dividing liquid mouth 12 at the flow to can guarantee that the flow that the medium flows from each communicating pipe 13 is even. Wherein, the communicating pipe 13 and the outflow pipe 4 can be connected by welding.

For example, in the embodiment shown in fig. 2, 3 and 6, the outer wall of the liquid separation tube 1 is provided with a communicating tube 13 communicating with the liquid separation port 12, and the communicating tube 13 and the outflow tube 4 are connected together by welding. Wherein, the medium flow track is as follows: the medium flows into the liquid separation pipe 1 from the liquid inlet 11, then flows from the liquid separation pipe 1 to the liquid separation port 12, and then flows into the communicating pipe 13 from the liquid separation port 12, and finally flows out from the outflow pipe 4 because the communicating pipe 13 is communicated with the outflow pipe 4.

According to some embodiments of the invention, as shown in fig. 2, the plurality of outflow tubes 4 are of the same length. This simplifies the structure of the outlet pipe 4, facilitates mass production of the outlet pipe 4, and facilitates improvement of the production efficiency of the dispenser 100.

The lengths of the plurality of outflow tubes 4 may be different.

The following describes the dispenser 100 according to two embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the following description is intended to be illustrative only, and is not intended to be in any way limiting.

Example one

As shown in fig. 1 to 3, the dispenser 100 includes a liquid distribution pipe 1, a first orifice plate 2, a second orifice plate 3, and an outflow pipe 4.

Referring to fig. 2, 3 and 6, the liquid distribution pipe 1 has a liquid inlet 11 and a plurality of spaced liquid distribution ports 12, the lower end of the liquid distribution pipe 1 is opened to form the liquid inlet 11, the liquid distribution ports 12 are arranged on the peripheral wall of the liquid distribution pipe 1, the plurality of liquid distribution ports 12 are spaced along the length direction of the liquid distribution pipe 1, and the peripheral wall of the liquid distribution ports 12 is turned outwards to form a communication pipe 13 communicated with the liquid distribution ports 12.

Referring to fig. 2, 4 and 5, the first orifice plate 2 is disposed in the liquid distribution pipe 1 and located between the liquid inlet 11 and the plurality of liquid distribution ports 12, the first orifice plate 2 is provided with a plurality of first through holes 21, the plurality of first through holes 21 include a first sub through hole 211 located in the center of the first orifice plate 2 and a second sub through hole 212 located outside the first sub through hole 211 and spaced apart along the circumferential direction of the first orifice plate 2, the second sub through hole 212 is an elongated hole, and the second sub through hole 212 extends along the circumferential direction of the first orifice plate 2. The medium is accelerated through the first sub through hole 211 and the second sub through hole 212, and atomized into fine droplets by the shearing effect of the high-speed gas, so that the medium is uniformly distributed on the flow cross section, and the flow rate of the medium flowing out from each liquid distribution port 12 is uniform.

Referring to fig. 2, the structure of the second orifice plate 3 is the same as that of the first orifice plate 2, the second orifice plate 3 is also arranged in the liquid distribution pipe 1 and is located on one side of the first orifice plate 2 away from the liquid inlet 11, and both sides of the second orifice plate 3 in the thickness direction are provided with at least one liquid distribution port 12.

Referring to fig. 2, the plurality of outflow pipes 4 are connected to the plurality of communication pipes 13 by welding, respectively, the plurality of communication pipes 13 have the same length, and the plurality of outflow pipes 4 are arranged in parallel.

Example two

The structure of the present embodiment is substantially the same as that of the first embodiment, wherein the same reference numerals are used for the same components, and the only difference is that the second sub through holes 212 of the first orifice plate 2 are circular holes and are arranged at two intervals along the radial direction of the first orifice plate 2.

EXAMPLE III

The present embodiment has substantially the same structure as the first embodiment, in which the same reference numerals are used for the same components, except that the second sub through hole 211 extends in an arc shape in the circumferential direction of the first orifice plate 2.

Example four

The present embodiment has substantially the same structure as the first embodiment, wherein the same reference numerals are used for the same components, and only the second sub through hole 212 of the first orifice plate 2 is a circular hole.

A heat exchanger according to an embodiment of the present invention is described below with reference to the accompanying drawings.

The heat exchanger according to an embodiment of the present invention includes the above-described liquid distributor 100. The refrigerant passing through the expansion valve flows into the liquid dividing pipe 1 from the liquid inlet 11, then flows from the liquid dividing pipe 1 to the liquid dividing port 12, and then flows into the communication pipe 13 from the liquid dividing port 12, and the refrigerant finally flows out from the outflow pipe 4 because the communication pipe 13 is communicated with the outflow pipe 4.

For example, the heat exchanger may include a heat exchange main body and the liquid distributor 100, specifically, the heat exchange main body may include a plurality of heat exchange branches, the plurality of heat exchange branches may be arranged in parallel, and each liquid distributor 12 of the liquid distributor 100 is correspondingly communicated with one heat exchange branch, or the plurality of liquid distributors 12 of the liquid distributor 100 may be one-to-one corresponding to and connected to the plurality of heat exchange branches of the heat exchanger.

According to the heat exchanger of the embodiment of the invention, the first orifice plate 2 is arranged in the liquid distribution pipe 1, so that the liquid inlet 11 and the plurality of liquid distribution ports 12 are respectively positioned at two sides of the first orifice plate 2, and the plurality of first through holes 21 are arranged on the first orifice plate 2, because the refrigerant throttled by the expansion valve is in a gas-liquid two-phase state, the refrigerant flowing from the liquid inlet 11 can flow into the pipe of the liquid separating pipe 1 at high speed after passing through the first through hole 21, so that the liquid can be atomized into fine liquid drops by utilizing the shearing effect of high-speed gas, the gas and the liquid are fully and uniformly mixed on the flow section under the carrying of the high-speed gas, so that the refrigerant flowing into the liquid separation pipe 1 can be uniformly distributed, further, the flow rate of the refrigerant flowing out of each liquid separation port 12 is ensured to be uniform, the heat exchange capacity of the heat exchanger can be maximized, and the liquid separator 100 is simple in structure, convenient to manufacture and low in cost.

An air conditioner according to an embodiment of the present invention is described below with reference to the accompanying drawings.

The air conditioner comprises the heat exchanger.

According to the air conditioner of the embodiment of the invention, by arranging the first orifice plate 2 in the liquid distribution pipe 1 so that the liquid inlet 11 and the plurality of liquid distribution ports 12 are respectively positioned at both sides of the first orifice plate 2, and arranging the plurality of first through holes 21 on the first orifice plate 2, because the refrigerant throttled by the expansion valve is in a gas-liquid two-phase state, the refrigerant flowing from the liquid inlet 11 can flow into the pipe of the liquid separating pipe 1 at high speed after passing through the first through hole 21, so that the liquid can be atomized into fine liquid drops by utilizing the shearing effect of high-speed gas, the gas and the liquid are fully and uniformly mixed on the flow section under the carrying of the high-speed gas, so that the refrigerant flowing into the liquid separation pipe 1 can be uniformly distributed, further, the flow rate of the refrigerant flowing out of each liquid separation port 12 is ensured to be uniform, the heat exchange capacity of the heat exchanger can be maximized, and the liquid separator 100 is simple in structure, convenient to manufacture and low in cost.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 the invention. 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.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dispenser, comprising:

a liquid distribution tube having a liquid inlet and a plurality of spaced apart liquid distribution ports;

the first pore plate is provided with a plurality of first through holes, the first pore plate is arranged in the liquid separating pipe and is positioned between the liquid inlet and the liquid separating ports so that a medium flowing from the liquid inlet passes through the first through holes and flows to the liquid separating ports in a plurality.

2. The dispenser of claim 1, wherein the plurality of first through-holes comprises a plurality of second sub-through-holes spaced apart in a circumferential direction of the first orifice plate.

3. The dispenser according to claim 2, wherein the second sub through-hole is an elongated hole.

4. The dispenser according to claim 3, wherein the second sub through hole extends in a circumferential or radial direction of the first orifice plate.

5. The dispenser according to claim 2, wherein the second sub through hole is a circular hole.

6. The liquid distributor according to claim 5, wherein the plurality of second sub through holes are a plurality of turns arranged at intervals in a radial direction of the first orifice plate.

7. The dispenser of claim 2, wherein the plurality of first through-holes further comprises a first sub-through-hole located at a center of the first orifice plate.

8. The liquid distributor according to claim 7, wherein the total opening area of all the first through holes is At, the total opening area of all the second sub-through holes is Ao, and: Ao/At is more than or equal to 0.25 and less than 1.

9. The dispenser according to any one of claims 1-8, wherein the distance between the outer edge of the first orifice plate and the center of the first through hole located at the radially outermost side is w, the inner diameter of the liquid distribution pipe is D, and the following are satisfied: w/D is more than or equal to 0.08 and less than or equal to 0.24.

10. The dispenser according to any one of claims 1 to 8, wherein the first orifice plate has an area a, and the total opening area of all the first through holes is At, and satisfies: At/A is more than or equal to 0.10 and less than or equal to 0.36.

11. The liquid distributor according to claim 1, wherein the liquid distribution port is provided on a peripheral wall of the liquid distribution pipe, and a plurality of the liquid distribution ports are spaced apart along a length direction of the liquid distribution pipe.

12. The liquid distributor according to claim 11, further comprising a plurality of second orifice plates, wherein the second orifice plates are provided with a plurality of second through holes, and the second orifice plates are arranged in the liquid distribution pipes and positioned on one sides of the first orifice plates, which are far away from the liquid inlet.

13. The dispenser according to claim 12, wherein the second orifice plate has at least one of the dispensing ports on both sides in a thickness direction thereof.

14. The dispenser according to claim 12 or 13, wherein the second well plate has the same structure as the first well plate.

15. The dispenser according to claim 1, further comprising a plurality of outflow tubes connected to the plurality of dispensing ports, respectively.

16. The dispenser according to claim 15, wherein a connection pipe is provided on an outer wall of the liquid distribution pipe to communicate with the liquid distribution port, and the outflow pipe is connected to the connection pipe.

17. The dispenser according to claim 15, wherein the outflow tubes are of the same length.

18. A heat exchanger, characterized in that it comprises a liquid distributor according to any one of claims 1-17.

19. An air conditioner characterized by comprising the heat exchanger according to claim 18.