CN219511373U - Flow mixer, heat exchanger and gas regulating equipment - Google Patents

Abstract

The utility model relates to a flow mixer, a heat exchanger and gas regulating equipment, wherein a flow mixing plate which is opposite to a fluid inlet is arranged in a fluid channel of an inverter, after a gas-liquid two-phase fluid enters the flow mixer through a fluid outlet, the high-speed fluid is impacted on the flow mixing plate and dispersed to the periphery, in the impact process, the liquid is dispersed into smaller liquid molecular groups which are mutually mixed with gaseous molecular groups, and then the liquid is further compressed and mixed through a gap between the periphery outer side of the flow mixing plate and a liquid outlet structure, so that the gas-liquid two-phase fluid is converted into the fluid with uniform components from uneven distribution, the gas-liquid distribution of the fluid entering an inlet header in the heat exchanger is uniform, the heat exchange is more uniform, the phenomenon that the channel is blocked after the liquid is evaporated and the heat transfer is deteriorated is avoided, and the flow mixer disclosed by the utility model is mixed into a two-phase cooling medium before entering the inlet header, thereby effectively solving the problems of uneven heat exchanger and poor heat exchange effect.

Description

Flow mixer, heat exchanger and gas regulating equipment

Technical Field

The utility model relates to the technical field of heat exchangers, in particular to a flow mixer, a heat exchanger and gas regulating equipment.

Background

The plate heat exchanger is a high-efficiency heat exchanger formed by stacking a series of metal sheets with certain corrugated shapes. Heat exchange channels are formed between the various plates, and heat exchange is carried out through the plates. The plate heat exchanger is ideal equipment for liquid-liquid and liquid-vapor heat exchange. The heat exchanger has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, wide application, long service life and the like. Under the same pressure loss, the heat transfer coefficient is 3-5 times higher than that of the tubular heat exchanger, the occupied area is one third of that of the tubular heat exchanger, and the heat recovery rate can be up to more than 90%.

The prior plate heat exchanger is provided with an inlet header, and enters different parallel flow channels through each distribution hole on the header to exchange heat. Because the distances between the distribution holes and the inlet header pipes of the plate heat exchanger are uneven, when the cooling medium with gas-liquid phases is in operation, the gas-liquid phases distributed to the flow channels after the cooling medium enters the inlet header pipes of the plate heat exchanger are seriously uneven, the flow channels with less liquid are evaporated to dryness, heat transfer is rapidly deteriorated, the flow channels with excessive liquid are blocked after the liquid is evaporated, and the heat transfer is also deteriorated, so that the overall performance of the heat exchanger is obviously reduced.

Disclosure of Invention

The utility model provides a flow mixer, a heat exchanger and gas regulating equipment, which are used for mixing two-phase cooling media before entering an inlet header so as to solve the problems of uneven gas-liquid distribution among flow channels of the heat exchanger and poor heat exchange effect.

In a first aspect, the present utility model provides a mixer comprising: the liquid inlet structure comprises a fluid inlet; the liquid outlet structure comprises a fluid outlet, the liquid inlet structure and the liquid outlet structure form a fluid channel, and the fluid outlet is communicated with the heat exchanger; the mixed flow structure comprises a mixed flow plate, the mixed flow plate is arranged in the fluid channel opposite to the fluid inlet, and the peripheral outer side of the mixed flow plate is in clearance fit with the liquid outlet structure.

Further, the mixed flow structure further comprises a block body, the block body is fixedly connected with one side, far away from the fluid inlet, of the mixed flow plate, and a first mixed flow gap is formed between the block body and the inner wall of the liquid outlet structure.

Further, the cross-sectional area of the first mixed flow gap gradually decreases in a direction in which the fluid passage approaches the fluid outlet. Further, along the direction that the fluid channel is close to the fluid outlet, the cross-sectional area of the block body gradually decreases, and the distance between the block body and the inner wall of the liquid outlet structure is unchanged.

Further, the block and the liquid outlet structure are both solid of revolution structures.

Further, the mixed flow structure further comprises a cylindrical section, the cylindrical section is fixedly connected with one end, far away from the mixed flow plate, of the block body, a second mixed flow gap is formed between the outer side of the cylindrical section and the inner wall of the liquid outlet structure, a fluid through hole is formed in the cylindrical section, and the inner wall of the cylindrical section is communicated with the fluid outlet.

Further, one end of the cylindrical section away from the block abuts against the bottom wall of the liquid outlet structure, or one end of the cylindrical section away from the block is fixedly connected with the bottom wall of the liquid outlet structure.

Further, the end of the cylindrical section away from the block forms a third mixed flow gap with the bottom wall of the liquid outlet structure.

Further, the liquid inlet structure further comprises a cover plate, the end, far away from the fluid outlet, of the mixed flow structure is provided with a mounting opening, the cover plate stretches into the mounting opening, and the cover plate is fixedly connected with the mounting opening.

Further, the liquid inlet structure further comprises a connecting column, and the connecting column is fixedly connected with the mixed flow plate and the cover plate respectively.

Further, the fluid inlet, the cover plate, the connecting column, the mixed flow plate, the block body and the cylindrical section are of an integrated structure.

In a second aspect, the present utility model provides a heat exchanger comprising an inlet header and a mixer, the mixer being a mixer as described above, a fluid outlet of the mixer being in communication with the inlet header.

In a third aspect, the present utility model provides a gas conditioning apparatus comprising a heat exchanger as described above.

Compared with the prior art, the technical scheme provided by the utility model has the following advantages:

the utility model provides a mixer, a heat exchanger and gas regulating equipment, wherein the mixer comprises: the liquid inlet structure comprises a fluid inlet; the liquid outlet structure comprises a fluid outlet, the liquid inlet structure and the liquid outlet structure form a fluid channel, and the fluid outlet is communicated with the heat exchanger; the mixed flow structure comprises a mixed flow plate, the mixed flow plate is arranged in the fluid channel opposite to the fluid inlet, and the peripheral outer side of the mixed flow plate is in clearance fit with the liquid outlet structure. The gas-liquid two-phase fluid enters the mixer through the fluid outlet, the high-speed fluid impinges on the mixing plate and is dispersed to the periphery, in the impinging process, the liquid is dispersed into smaller liquid molecular groups which are mutually mixed with gaseous molecular groups, and then the liquid is further compressed and mixed through the gap between the peripheral outer side of the mixing plate and the liquid outlet structure, so that the gas-liquid two-phase fluid is converted into the fluid with uniform components from uneven distribution, and then the fluid entering the inlet header of the heat exchanger is uniform in gas-liquid distribution, the gas-liquid components among all channels of the heat radiator are the same, the heat exchange is more uniform, the phenomenon of excessive liquid channels is avoided, the channels are blocked after the liquid evaporates, and the heat transfer is deteriorated is also caused.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic front view of a mixer according to an embodiment of the present utility model;

FIG. 2 shows a schematic top view of the mixer of FIG. 1;

FIG. 3 shows a schematic bottom view of the mixer of FIG. 1;

FIG. 4 shows a schematic top view of a schematic cross-sectional view of the mixer of FIG. 1 in the direction A-A;

fig. 5 shows a schematic top view of a schematic cross-sectional view of the mixer of fig. 1 in the direction B-B.

Wherein the above figures include the following reference numerals:

10. a liquid inlet structure; 11. a fluid inlet; 12. a cover plate; 13. a connecting column; 20. a liquid outlet structure; 21. a fluid outlet; 22. a mounting opening; 30. a mixed flow structure; 31. a mixed flow plate; 32. a block; 33. a cylindrical section; 331. a fluid via; 41. a first mixed flow gap; 42. and a second mixed flow gap.

Detailed Description

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

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. 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 utility model belongs.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative 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 in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 5, in a first aspect, an embodiment of the present utility model provides a mixer, including: a liquid inlet structure 10, a liquid outlet structure 20 and a mixed flow structure 30, wherein the liquid inlet structure 10 comprises a fluid inlet 11; the liquid outlet structure 20 comprises a fluid outlet 21, the liquid inlet structure 10 and the liquid outlet structure 20 enclose a fluid channel, and the fluid outlet 21 is communicated with the heat exchanger; the mixing structure 30 comprises a mixing plate 31, the mixing plate 31 is arranged in the fluid channel opposite to the fluid inlet 11, and the peripheral outer side of the mixing plate 31 is in clearance fit with the liquid outlet structure 20. The fluid of gas-liquid two phases enters the mixer through the fluid outlet, the fluid of high speed is impacted on the mixing flow plate 31 and dispersed to the periphery, in the impact process, the fluid is dispersed into smaller liquid molecular groups which are mutually mixed with gaseous molecular groups, and then the mixture is further compressed and mixed through the gap between the peripheral outer side of the mixing flow plate 31 and the liquid outlet structure 20, so that the fluid of gas-liquid two phases is converted into fluid with uniform components from uneven distribution, the fluid of gas-liquid of the inlet header in the heat exchanger is further uniformly distributed, the gas-liquid components among all channels of the heat radiator are the same, the heat exchange is more uniform, meanwhile, the phenomenon of excessive liquid channels are avoided, the channels are blocked after the liquid is evaporated, and the heat transfer is deteriorated is also caused.

It should be noted that, in some alternative embodiments, in order to avoid a part of the fluid from gathering or staying on the mixed flow plate 31, the mixed flow plate 31 may be configured with a middle protrusion, where the height of the protrusion is lower, and the fluid can be driven to slide down under the impact of high-speed fluid.

As shown in fig. 4, in the technical solution of the present embodiment, the mixed flow structure 30 further includes a block 32, where the block 32 is fixedly connected with a side of the mixed flow plate 31 away from the fluid inlet 11, and a first mixed flow gap 41 is formed between the block 32 and an inner wall of the liquid outlet structure 20. The first mixing gap 41 is used for flowing the mixed two-phase fluid, the space volume of the first mixing gap 41 is far smaller than the space between the mixing plate 31 and the liquid inlet structure 10, after part of liquid becomes a liquid molecular group with larger space, the volume of the two-phase fluid is increased, the fluidity is enhanced, after the liquid is transferred from a large space to a small space, the flow velocity of the fluid is increased, the mixing degree of the two-phase fluid is increased, the flow velocity of the fluid is increased, and further, the speed of the fluid is accelerated due to the arrangement of the mixing plate 31, and the heat exchanger is also convenient to obtain better heat dissipation effect due to the accelerated pressure and the flow velocity of the fluid. When the block 32 is provided, the flow mixing plate 31 may be a surface of the block 32 facing the fluid inlet 11, and may be a flat surface or a curved surface.

As shown in fig. 4, in the technical solution of the present embodiment, the cross-sectional area of the first mixed flow gap 41 gradually decreases in the direction in which the fluid passage approaches the fluid outlet 21. On the one hand, the arrangement ensures that the two-phase fluid is further mixed, the space between the liquid molecular group and the gas molecular group or the gas molecular group is reduced, the mixing degree is higher, and the gas-liquid distribution of the two-phase fluid is more uniform; meanwhile, the flow speed of the fluid is further increased, so that the requirement of the heat exchanger on the fluid is better met, and the heat exchange effect and the heat exchange efficiency are further improved.

As shown in fig. 4, in the technical solution of this embodiment, along the direction of the fluid channel approaching the fluid outlet 21, the cross-sectional area of the block 32 gradually decreases, and the distance between the block 32 and the inner wall of the liquid outlet structure 20 is unchanged. I.e. the inner wall of the liquid outlet structure 20 and the side wall of the block 32 are stretched simultaneously, and the same interval is kept between the two. The purpose of this arrangement is that the two-phase fluid always flows in the first mixing gap 41, and the fluid is further mixed by volume compression in the flowing direction, so that the flowing speeds are the same, and the possibility that the internal fluid moves in a chaotic manner and part of the fluid stays in the first mixing gap 41 to cause blockage damage to the mixer is avoided.

As shown in fig. 3, in the technical solution of the present embodiment, both the block 32 and the liquid outlet structure 20 are solid of revolution. The arrangement of the revolving body can be better assembled, and the cooperation of the conical surface can better control the distance between the block 32 and the inner wall of the liquid outlet structure 20, and the two can be coaxial during installation. The conical surface or the inclined surface has a guiding effect on the liquid molecular group, and even if part of the liquid molecular group adheres to the conical surface or the inclined surface under the action of gravity and the blowing of the gaseous molecular group, the liquid molecular group can gradually slide downwards and finally be mixed. In some alternative embodiments, the block 32 and the liquid outlet structure 20 may also be configured as a polyhedron, such as a triangular sided pyramid, or the like.

As shown in fig. 4, in the technical solution of this embodiment, the mixed flow structure 30 further includes a cylindrical section 33, where the cylindrical section 33 is fixedly connected to an end of the block 32 away from the mixed flow plate 31, a second mixed flow gap 42 is formed between the outer side of the cylindrical section 33 and the inner wall of the liquid outlet structure 20, a fluid through hole 331 is disposed on the cylindrical section 33, and the inner wall of the cylindrical section 33 is communicated with the fluid outlet 21. The provision of the cylindrical section 33 serves to accelerate the damping and steering of the fluid so as to flow out of the transverse fluid passage 331. The two-phase fluid passes through the fluid through hole 331 and then enters the heat exchanger through the fluid outlet 21, and the fluid through hole 331 can perform further compression acceleration and mixing, so that the two-phase fluid entering the heat exchanger has higher flow velocity and mixing degree. It should be noted that, the shape of the fluid through holes 331 may be triangle, circle, ellipse, etc., and the plurality of fluid through holes 331 are arranged in a plurality of rows sequentially along the vertical direction, and the plurality of rows of fluid through holes 331 are circumferentially arranged on the wall surface of the cylindrical section 33. It should be noted that, the second mixed flow gap 42 can provide a buffer space for the high-speed fluid, and on the other hand, the high-speed fluid can be further dispersed to flow out from each fluid through hole 331, so that the flowing out two-phase fluid can be more stable and more uniform in mixing.

As shown in fig. 4, in the technical solution of the present embodiment, one end of the cylindrical section 33 away from the block 32 abuts against the bottom wall of the liquid outlet structure 20, or one end of the cylindrical section 33 away from the block 32 is fixedly connected with the bottom wall of the liquid outlet structure 20. The arrangement of the offset can limit that the two-phase fluid cannot overflow from the bottom of the cylindrical section 33, thereby improving the mixing degree of the two-phase fluid, reducing the occupation amount of unmixed fluid, and the arrangement principle of the fixed connection is the same. The fixed connection mode can be selected to be welded or provided with a sealing ring and the like.

In an alternative embodiment, the end of the cylindrical section 33 remote from the block 32 forms a third mixing gap with the bottom wall of the liquid outlet structure 20. The third mixing gap is formed to function as the fluid passage 331 to further mix and accelerate the two-phase fluid. The third mixed flow gap may be formed by the fluid through hole 331 and the bottom wall of the liquid outlet structure 20, or the end of the cylindrical section 33 far away from the block 32 may be provided with spaced struts, where the struts are fixedly connected with the bottom wall of the liquid outlet structure 20, and the interval between adjacent struts is the third mixed flow gap.

As shown in fig. 2 and fig. 4, in the technical solution of the present embodiment, the liquid inlet structure 10 further includes a cover plate 12, an end of the mixed flow structure 30, which is far away from the fluid outlet 21, is provided with a mounting opening 22, the cover plate 12 extends into the mounting opening 22, and the cover plate 12 is fixedly connected with the mounting opening 22. The cover plate 12 is fixedly connected with the mounting opening 22 for sealing the gap between the liquid inlet structure 10 and the liquid outlet structure 20, and the fixed connection mode can be selected to be welded or provided with a sealing element for sealing treatment. The cover plate 12 is convenient to fixedly connect, and is more suitable for the condition of volume increase of the two-phase fluid after the two-phase fluid passes through the fluid inlet 11 to strike the mixed flow plate 31, so that the liquid molecular group occupation ratio increase caused by direct compression of the two-phase fluid can be avoided, and the mixed flow device is blocked. In addition, the welding between the cover plate 12 and the mounting opening 22 is more convenient, the welding position is far away from the fluid inlet 11, and the influence on the size of the fluid inlet 11 is smaller, so that the operation stability of the heat exchanger is facilitated.

As shown in fig. 2, 4 and 5, in the technical solution of the present embodiment, the liquid inlet structure 10 further includes a connection column 13, and the connection column 13 is fixedly connected with the mixed flow plate 31 and the cover plate 12 respectively. The arrangement of the connecting column 13 is used for connecting the mixed flow plate 31 and the cover plate 12, ensuring the stability of connection, and on the other hand, the distance between the cover plate 12 and the mixed flow plate 31 is controlled when the advancing liquid structure 10 is assembled. It should be noted that the connecting column 13 may be a cylinder or a prism, which has a smaller influence on the fluid flow, and may have a certain flow dividing effect, so that the mixing is more uniform. The spliced pole 13 can set up to a plurality ofly, and a plurality of spliced poles 13 encircle the setting, connect more stably like this, and the effect is better. The number of the specific connecting columns 13 is 8, and the specific connecting columns are arranged around the axis of the mixed flow plate 31, so that the combined supporting effect is better.

As shown in fig. 4, in the technical solution of the present embodiment, the fluid inlet 11, the cover plate 12, the connecting column 13, the mixing plate 31, the block 32, and the cylindrical section 33 are integrally structured. The arrangement makes the structure more compact, avoids the process complexity of multi-stage welding, and when in assembly, the whole liquid inlet structure 10 drives the mixed flow structure 30 to be inserted into the liquid outlet structure 20, the cylindrical section 33 is propped against the bottom wall of the liquid outlet structure 20 to realize the positioning in the vertical direction, the cover plate 12 is matched with the mounting opening 22 to realize the positioning in the horizontal direction, and then the cover plate 12 is fixedly connected with the mounting opening 22.

It should be noted that, in the embodiment of the utility model, the gas-liquid separation is performed on the gas-liquid two-phase flow in the flowing process, and the channels of the heat exchanger, especially the channels of the plate heat exchanger, are parallel channels in a front-back relationship, so that most of liquid flows into the channels close to the inlet, less liquid flows in the channels far from the inlet, and thus the above-mentioned blockage problem occurs in the channels close to the inlet, the "evaporation problem" occurs in the channels far from the inlet, and the overall performance of the heat exchanger is remarkably reduced. Embodiments of the present utility model address the above problems by designing a mixer for use in front of the inlet header of a heat exchanger, particularly a plate heat exchanger.

In the technical solution of the present embodiment, the flow mixer is composed of a liquid inlet structure 10, a liquid outlet structure 20 and a mixed flow structure 30. The liquid inlet structure 10 is sealed and fixed by welding the side wall surface of the cover plate 12 with the inner surface of the mounting opening 22 of the liquid outlet structure 20. The inner walls of the mixed flow structure 30 and the liquid outlet structure 20 are assembled to form a 360-degree through flow passage.

In the technical solution of this embodiment, the liquid inlet structure 10 includes a fluid inlet 11, a cover plate 12 and a connecting column 13, the mixed flow structure 30 includes a mixed flow plate 31, a block 32 and a cylindrical section 33, and the fluid inlet 11 is connected to an upstream pipeline to perform the function of delivering fluid. The cover plate 12 has a sealing function, the connecting column 13 connects the cover plate 12 with the mixed flow plate 31 for reinforcement, the connecting column 13 adopts a streamline structure to reduce flow resistance, and the sealing structure is not limited to a cylindrical shape. The mixing plate 31, at the beginning, mixes the flow. The first mixing gap 41 is tapered and penetrates 360 degrees, and serves to accelerate the mixing fluid. The cylindrical section 33 is provided with fluid passages 331 for fluid discharge.

In the technical scheme of this embodiment, the liquid outlet structure 20 includes a mounting opening 22, an inner wall and a bottom wall, an angle of 90 degrees is formed between the bottom wall and the inner wall, a fluid outlet 21 is disposed on the bottom wall, and the inner wall and the block 32 form a first mixed flow gap 41 after assembled, and play a role in reinforcement. The bottom wall changes the direction of fluid flow so that the two phase fluid is further mixed at the periphery of the cylindrical section 33. The fluid outlet 21 is connected to the heat exchanger inlet header and delivers the highly-mixed gas-liquid two-phase fluid to the heat exchanger.

In the technical scheme of the embodiment, the refrigerant enters the mixer through the fluid inlet 11, the high-speed refrigerant vertically impacts on the mixing plate 31 and flows radially to the periphery, and the primary mixing of the gas and the liquid is completed. Flows through the connecting column 13 and into the vicinity of the first mixed flow gap 41. The first mixed flow gap 41 is of a 360-degree through structure, the cross section area of the first mixed flow gap 41 is gradually reduced along the flowing direction, the flow speed of the gas-liquid two-phase fluid is gradually increased, the two-phase refrigerant continues to mix and flow in the flow dividing channel, the flow pattern of the gas-liquid two-phase fluid is changed, the gas-liquid two-phase fluid is developed into mist flow, and the mixing uniformity is improved. After flowing out of the first mixing gap 41, the gas-liquid two-phase fluid enters the surrounding area of the cylindrical section 33, impacts the bottom wall of the liquid outlet structure 20, changes the flowing direction, and finally enters the fluid outlet 21 after being mixed through the fluid through holes 331.

In the technical scheme of the embodiment, a vertical impact type mixing mode is designed to finish preliminary mixing of gas and liquid; the cross section of the first mixed flow gap 41 is gradually reduced along the flow direction of the fluid, so that the fluid is accelerated, the gas-liquid flow pattern is changed, and the mixing uniformity is improved; the bottom wall of the liquid outlet structure 20 and the cylindrical section 33 are designed to change the flow direction of the two-phase fluid, and the two-phase fluid flows from the fluid through holes 331 to the fluid outlet 21, thereby providing a highly mixed gas-liquid two-phase flow for the heat exchanger. The flow mixer of the embodiment can fully mix gas-liquid two-phase fluid, has simple and reliable structure, small resistance, no fine structure, no blockage problem, good processability and practical application value.

In a second aspect, an embodiment of the present utility model provides a heat exchanger, including an inlet header and a mixer, where the mixer is a mixer as described above, and a fluid outlet of the mixer is in communication with the inlet header. When the heat exchanger of the mixer is used, the phenomenon that the cooling medium with gas phase and liquid phase is in gas-liquid separation is avoided when the cooling medium enters the inlet header of the heat exchanger, the phenomenon that the cooling medium is in gas-liquid phase and liquid phase fluid distributed to each flow passage is seriously uneven after entering the inlet header of the plate heat exchanger is avoided, the phenomenon that the refrigerant is evaporated to dryness is caused in the flow passage with less liquid, the heat transfer is rapidly deteriorated, the flow passage with excessive liquid is blocked after the liquid is evaporated, and the heat transfer is also deteriorated, so that the overall performance of the heat exchanger is obviously reduced. The failure rate of the heat exchanger is lower, and the service life is prolonged. The heat exchanger can be a plate heat exchanger, wherein heat exchange channels are formed between plates of the plate heat exchanger, and heat exchange is performed through the plates. The plate heat exchanger is ideal equipment for liquid-liquid and liquid-vapor heat exchange. The heat exchanger has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, wide application, long service life and the like.

In a third aspect, an embodiment of the present utility model provides a gas conditioning apparatus, including the heat exchanger described above. The air conditioning equipment comprises an air conditioner and a fresh air device. By using the heat exchanger, the heat exchange effect is good, the damage rate of the heat exchanger is lower, and the user experience is better.

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 exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model described herein may be capable of being practiced otherwise than as specifically illustrated and described. 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.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (13)

1. A flow mixer, comprising:

-a liquid intake structure (10), the liquid intake structure (10) comprising a fluid inlet (11);

the liquid outlet structure (20), the liquid outlet structure (20) comprises a fluid outlet (21), the liquid inlet structure (10) and the liquid outlet structure (20) enclose a fluid channel, and the fluid outlet (21) is communicated with the heat exchanger;

the mixed flow structure (30), mixed flow structure (30) include mixed flow board (31), mixed flow board (31) just set up in fluid channel to fluid inlet (11), mixed flow board (31) week outside with play liquid structure (20) clearance fit.

2. The flow mixer according to claim 1, characterized in that the flow mixing structure (30) further comprises a block (32), the block (32) is fixedly connected with a side of the flow mixing plate (31) away from the fluid inlet (11), and a first flow mixing gap (41) is formed between the block (32) and an inner wall of the liquid outlet structure (20).

3. A mixer according to claim 2, characterized in that the cross-sectional area of the first mixing gap (41) gradually decreases in the direction of the fluid channel approaching the fluid outlet (21).

4. A mixer according to claim 3, wherein the cross-sectional area of the block (32) gradually decreases in the direction of the fluid channel approaching the fluid outlet (21), the distance between the block (32) and the inner wall of the liquid outlet structure (20) being constant.

5. The flow mixer according to claim 4, characterized in that the block (32) and the liquid outlet structure (20) are both solid of revolution structures.

6. The flow mixer according to claim 2, wherein the flow mixing structure (30) further comprises a cylindrical section (33), the cylindrical section (33) is fixedly connected with one end of the block body (32) away from the flow mixing plate (31), a second flow mixing gap (42) is formed between the outer side of the cylindrical section (33) and the inner wall of the liquid outlet structure (20), a fluid through hole (331) is formed in the cylindrical section (33), and the inner wall of the cylindrical section (33) is communicated with the fluid outlet (21).

7. A mixer according to claim 6, characterized in that the end of the cylindrical section (33) remote from the block (32) is in abutment with the bottom wall of the liquid outlet structure (20), or that the end of the cylindrical section (33) remote from the block (32) is fixedly connected with the bottom wall of the liquid outlet structure (20).

8. A mixer according to claim 6, characterized in that the end of the cylindrical section (33) remote from the block (32) forms a third mixing gap with the bottom wall of the liquid outlet structure (20).

9. The flow mixer according to claim 6, wherein the liquid inlet structure (10) further comprises a cover plate (12), a mounting opening (22) is formed in one end of the flow mixing structure (30) away from the fluid outlet (21), the cover plate (12) extends into the mounting opening (22), and the cover plate (12) is fixedly connected with the mounting opening (22).

10. The flow mixer according to claim 9, characterized in that the liquid inlet structure (10) further comprises a connecting column (13), and the connecting column (13) is fixedly connected with the flow mixing plate (31) and the cover plate (12) respectively.

11. The flow mixer according to claim 10, characterized in that the fluid inlet (11), the cover plate (12), the connecting column (13), the flow mixing plate (31), the block (32) and the cylindrical section (33) are of unitary construction.

12. A heat exchanger comprising an inlet header and a mixer as claimed in any one of claims 1 to 11, the fluid outlet of the mixer being in communication with the inlet header.

13. A gas conditioning apparatus comprising the heat exchanger of claim 12.