Mixers, heat exchangers and gas conditioning equipment

Abstract

The present application relates to a flow mixer, a heat exchanger and a gas regulating device, wherein the flow exchanger is provided with a mixing plate arranged opposite to the fluid inlet in the fluid channel. After the gas-liquid two-phase fluid enters the flow mixer through the fluid outlet, the high-speed fluid impacts the mixing plate and disperses to the surrounding areas. During the impact process, the liquid is dispersed into smaller liquid molecular clusters, which are mixed with the gas molecular clusters. Then, the liquid is further compressed and mixed through the gap between the outer side of the mixing plate and the liquid outlet structure, so that the gas-liquid two-phase fluid is converted from unevenly distributed to a fluid with uniform composition, and then the fluid entering the inlet header of the heat exchanger is evenly distributed in the gas and liquid, which makes the heat exchange more uniform while avoiding the flow channel with too much liquid, which will block the channel after the liquid evaporates and cause the heat transfer to deteriorate. The flow mixer of the present application mixes the two-phase cooling medium before entering the inlet header, effectively solving the problems of uneven heat exchanger and poor heat exchange effect.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchangers, and in particular to a flow mixer, a heat exchanger and a gas regulating device. Background Art

[0002] A plate heat exchanger is a highly efficient heat exchanger composed of a series of stacked, corrugated metal sheets. Heat is exchanged through the plates, forming heat exchange channels. Plate heat exchangers are ideal for liquid-to-liquid and liquid-to-vapor heat exchange. They feature high heat transfer efficiency, minimal heat loss, a compact and lightweight structure, a small footprint, wide applicability, and a long service life. Under the same pressure loss conditions, their heat transfer coefficient is 3-5 times higher than that of a tubular heat exchanger, requiring only one-third the floor space, and can achieve heat recovery rates exceeding 90%.

[0003] Existing plate heat exchangers have an inlet manifold, through which the heat is exchanged in parallel in different flow channels. Due to the uneven distances between the distribution holes and the inlet manifold, the gas-liquid separation of the two-phase cooling medium occurs during operation. This results in severe uneven distribution of the gas-liquid fluid to the various flow channels after the cooling medium enters the inlet manifold. Flow channels with less liquid experience refrigerant "evaporation," sharply deteriorating heat transfer. Flow channels with too much liquid experience clogging after evaporation, also worsening heat transfer and significantly reducing the overall performance of the heat exchanger. Summary of the Invention

[0004] The present application provides a flow mixer, a heat exchanger and a gas regulating device for mixing two-phase cooling media before entering the inlet header to solve the problem of uneven gas-liquid distribution between the flow channels of the heat exchanger and poor heat exchange effect.

[0005] In the first aspect, the present application provides a flow mixer, comprising: a liquid inlet structure, a liquid outlet structure and a flow mixing structure, the liquid inlet structure includes a fluid inlet; the liquid outlet structure includes a fluid outlet, the liquid inlet structure and the liquid outlet structure form a fluid channel, and the fluid outlet is connected to a heat exchanger; the flow mixing structure includes a flow mixing plate, the flow mixing plate is arranged in the fluid channel opposite to the fluid inlet, and the outer side of the flow mixing plate is gap-matched with the liquid outlet structure.

[0006] Furthermore, the flow mixing structure further includes a block, which is fixedly connected to a side of the flow mixing plate away from the fluid inlet, and a first flow mixing gap is formed between the block and the inner wall of the liquid outlet structure.

[0007] Furthermore, the cross-sectional area of the first mixing gap gradually decreases along the direction of the fluid channel approaching the fluid outlet. Furthermore, the cross-sectional area of the block gradually decreases along the direction of the fluid channel approaching the fluid outlet, and the distance between the block and the inner wall of the liquid outlet structure remains unchanged.

[0008] Furthermore, the block and the liquid outlet structure are both rotating body structures.

[0009] Furthermore, the mixing flow structure also includes a cylindrical section, which is fixedly connected to the end of the block away from the mixing flow plate. The outer side of the cylindrical section and the inner wall of the liquid outlet structure form a second mixing flow gap. A fluid through hole is provided on the cylindrical section, and the inner wall of the cylindrical section is connected to the fluid outlet.

[0010] Furthermore, 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 to the bottom wall of the liquid outlet structure.

[0011] Furthermore, an end of the cylindrical section away from the block forms a third mixed flow gap with the bottom wall of the liquid outlet structure.

[0012] Furthermore, the liquid inlet structure further includes a cover plate, an installation opening is provided at one end of the mixing flow structure away from the fluid outlet, the cover plate extends into the installation opening, and the cover plate is fixedly connected to the installation opening.

[0013] Furthermore, the liquid inlet structure also includes connecting columns, which are fixedly connected to the mixing plate and the cover plate respectively.

[0014] Furthermore, the fluid inlet, the cover plate, the connecting column, the mixing plate, the block and the cylindrical section are an integrated structure.

[0015] In a second aspect, the present application provides a heat exchanger, which includes an inlet header and a mixer. The mixer is the above-mentioned mixer, and the fluid outlet of the mixer is connected to the inlet header.

[0016] In a third aspect, the present application provides a gas regulating device, which includes the above-mentioned heat exchanger.

[0017] The above technical solution provided by this application has the following advantages compared with the existing technology:

[0018] The present application provides a flow mixer, a heat exchanger and a gas regulating device, wherein the flow mixer includes: a liquid inlet structure, a liquid outlet structure and a flow mixing structure, the liquid inlet structure includes a fluid inlet; the liquid outlet structure includes a fluid outlet, the liquid inlet structure and the liquid outlet structure form a fluid channel, and the fluid outlet is connected to the heat exchanger; the flow mixing structure includes a flow mixing plate, the flow mixing plate is arranged in the fluid channel opposite to the fluid inlet, and the outer side of the flow mixing plate is gap-matched with the liquid outlet structure. The gas-liquid two-phase fluid enters the mixer through the fluid outlet, and the high-speed fluid impacts the mixing plate and disperses to all sides. During the impact process, the liquid is dispersed into smaller liquid molecular clusters, mixed with the gas molecular clusters, and then further compressed and mixed through the gap between the outer side of the mixing plate and the liquid outlet structure, so that the gas-liquid two-phase fluid is converted from unevenly distributed to a fluid with uniform composition, and then enters the inlet header of the heat exchanger with uniform gas-liquid distribution. The gas-liquid composition between each flow channel of the radiator is the same, the heat exchange is more uniform, and the flow channel with too much liquid is avoided. The channel is blocked after the liquid evaporates, which also causes the heat transfer to deteriorate. The mixer of the present application mixes the two-phase cooling medium before entering the inlet header, which effectively solves the problems of uneven heat exchanger and poor heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 A schematic diagram of a main view of a flow mixer provided in an embodiment of the present application is shown;

[0022] Figure 2 Shown Figure 1 Schematic diagram of the top view of the flow mixer;

[0023] Figure 3 Shown Figure 1 Schematic diagram of the mixer from bottom view;

[0024] Figure 4 Shown Figure 1 A schematic top view of a cross-sectional view of the mixer along the AA direction;

[0025] Figure 5 Shown Figure 1 Schematic top view of the cross-sectional view of the mixer along the BB direction.

[0026] The above drawings include the following reference numerals:

[0027] 10. Liquid inlet structure; 11. Fluid inlet; 12. Cover plate; 13. Connecting column; 20. Liquid outlet structure; 21. Fluid outlet; 22. Mounting opening; 30. Mixing flow structure; 31. Mixing flow plate; 32. Block; 33. Cylindrical section; 331. Fluid through hole; 41. First mixing flow gap; 42. Second mixing flow gap. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0030] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0031] like Figures 1 to 5As shown, in the first aspect, an embodiment of the present application provides a flow mixer, comprising: a liquid inlet structure 10, a liquid outlet structure 20 and a flow mixing structure 30, the liquid inlet structure 10 includes a fluid inlet 11; the liquid outlet structure 20 includes a fluid outlet 21, the liquid inlet structure 10 and the liquid outlet structure 20 form a fluid channel, and the fluid outlet 21 is connected to the heat exchanger; the flow mixing structure 30 includes a flow mixing plate 31, the flow mixing plate 31 is arranged in the fluid channel opposite to the fluid inlet 11, and the outer side of the flow mixing plate 31 is gap-fitted with the liquid outlet structure 20. The gas-liquid two-phase fluid enters the mixer through the fluid outlet, and the high-speed fluid impacts the mixing plate 31 and disperses to the surrounding areas. During the impact process, the liquid is dispersed into smaller liquid molecular clusters, which are mixed with the gas molecular clusters. Then, it is further compressed and mixed through the gap between the outer side of the mixing plate 31 and the liquid outlet structure 20, so that the gas-liquid two-phase fluid is converted from unevenly distributed to a fluid with uniform composition, and then enters the inlet manifold of the heat exchanger with uniform gas-liquid distribution. The gas-liquid composition between each flow channel of the radiator is the same, and the heat exchange is more uniform while avoiding the flow channels with too much liquid. The channel is blocked after the liquid evaporates, which also causes the heat transfer to deteriorate. The mixer of the present application mixes the two-phase cooling medium before entering the inlet manifold, which effectively solves the problems of uneven heat exchanger and poor heat exchange effect.

[0032] It should be noted that, in some optional embodiments, in order to prevent part of the fluid from gathering or being retained on the mixing plate 31, the mixing plate 31 can be set to a structure with a middle protrusion with a low protrusion height, which can drive the fluid to slide down under the impact of high-speed fluid.

[0033] like Figure 4 As shown, in the technical solution of this embodiment, the mixing structure 30 also includes a block 32, which is fixedly connected to the side of the mixing plate 31 away from the fluid inlet 11, forming a first mixing gap 41 between the block 32 and the inner wall of the liquid outlet structure 20. The first mixing gap 41 is used for the flow of the mixed two-phase fluid. The spatial volume of the first mixing gap 41 is much smaller than the space between the mixing plate 31 and the liquid inlet structure 10. After part of the liquid is transformed into liquid molecular clusters that occupy a larger space, the volume of the two-phase fluid increases and the fluidity becomes stronger. At this time, after transferring from the large space to the small space, the flow velocity of the fluid increases. The increase in flow velocity increases the degree of mixing of the two-phase fluid and the flow velocity of the fluid is increased. Therefore, the deceleration of the fluid is accelerated due to the provision of the mixing plate 31. The increase in pressure and the increase in fluid flow velocity also facilitate better heat dissipation of the heat exchanger. It should be noted that when the block 32 is provided, the mixing plate 31 can be the surface of the block 32 facing the fluid inlet 11, which can be a flat surface or a curved surface.

[0034] like Figure 4As shown, in the technical solution of this embodiment, the cross-sectional area of the first mixing gap 41 gradually decreases along the direction of the fluid channel approaching the fluid outlet 21. This arrangement, on the one hand, further mixes the two-phase fluid, reduces the distance between liquid molecular clusters and gas molecules, or between gas molecular clusters, and improves the degree of mixing and the more uniform gas-liquid distribution of the two-phase fluid; on the other hand, it further increases the flow velocity of the fluid to better meet the fluid requirements of the heat exchanger, thereby improving the heat exchange effect and efficiency.

[0035] like Figure 4 As shown, in the technical solution of this embodiment, the cross-sectional area of the block 32 gradually decreases as the fluid channel approaches the fluid outlet 21, while the distance between the block 32 and the inner wall of the liquid outlet structure 20 remains unchanged. That is, the inner wall of the liquid outlet structure 20 and the sidewall of the block 32 expand and contract simultaneously, maintaining a constant spacing between them. This arrangement ensures that the two-phase fluid flows in a consistent direction within the first mixing gap 41. Through volume compression in the flow direction, the fluids are further mixed, maintaining a consistent flow velocity, and avoiding internal fluid motion chaos, which could prevent partial fluid retention within the first mixing gap 41 and potentially cause blockage and damage to the mixer.

[0036] like Figure 3 As shown, in the technical solution of the present embodiment, the block 32 and the liquid outlet structure 20 are both gyroscope structures. The setting of the gyroscope can be better assembled, and the coordination 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 when installed. It should be noted that the setting of the conical surface or the inclined surface has a guiding effect on the liquid molecular clusters. Under the action of gravity and the blowing of the gaseous molecular clusters, even if some of the liquid molecular clusters adhere to the conical surface or the inclined surface, they can gradually slide downward and eventually mix. In some optional embodiments, the block 32 and the liquid outlet structure 20 can also be arranged as a polyhedron, such as a pyramid with triangular faces on the side.

[0037] like Figure 4As shown, in the technical solution of this embodiment, the flow mixing structure 30 also includes a cylindrical section 33, which is fixedly connected to the end of the block 32 away from the flow mixing plate 31. The outer side of the cylindrical section 33 forms a second flow mixing gap 42 with the inner wall of the liquid outlet structure 20. The cylindrical section 33 is provided with fluid through-holes 331, and the inner wall of the cylindrical section 33 is connected to the fluid outlet 21. The cylindrical section 33 is provided to accelerate the buffering and diversion of the fluid so that it can flow out from the horizontal fluid through-holes 331. After passing through the fluid through-holes 331, the two-phase fluid enters the heat exchanger through the fluid outlet 21. The fluid through-holes 331 can further compress, accelerate, and mix the two-phase fluids entering the heat exchanger, resulting in a high flow rate and mixing degree. It should be noted that the shape of the fluid through-holes 331 can be triangular, circular, elliptical, etc. There are multiple fluid through-holes 331, which are arranged in multiple rows in a vertical direction. The multiple rows of fluid through-holes 331 are arranged around the wall of the cylindrical section 33. It should be noted that the second mixing gap 42 can provide a buffer space for high-speed fluid, and on the other hand can further disperse the high-speed fluid flowing out of each fluid through hole 331, so that the outflowing two-phase fluid can be more stable and mixed more evenly.

[0038] like Figure 4 As shown, in the technical solution of this embodiment, the end of the cylindrical section 33 away from the block 32 abuts against the bottom wall of the liquid outlet structure 20, or the end of the cylindrical section 33 away from the block 32 is fixedly connected to the bottom wall of the liquid outlet structure 20. The abutment setting can prevent the two-phase fluid from overflowing from the bottom of the cylindrical section 33, thereby improving the mixing degree of the two-phase fluid and reducing the amount of unmixed fluid. The principle of the fixed connection setting is the same. The fixed connection method can be selected from welding or the provision of a sealing ring.

[0039] In an optional embodiment, the end of the cylindrical section 33 distal to the block 32 forms a third mixing gap with the bottom wall of the liquid outlet structure 20. This third mixing gap serves the same purpose as the fluid through-holes 331: further mixing and accelerating the two-phase fluid. The third mixing gap can be formed by the fluid through-holes 331 and the bottom wall of the liquid outlet structure 20. Alternatively, spaced pillars can be provided at the end of the cylindrical section 33 distal to the block 32. The pillars are fixedly connected to the bottom wall of the liquid outlet structure 20, and the spaces between adjacent pillars constitute the third mixing gap.

[0040] like Figure 2 and Figure 4As shown, in the technical solution of this embodiment, the liquid inlet structure 10 also includes a cover plate 12, and the end of the mixing structure 30 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 to the mounting opening 22. The cover plate 12 is fixedly connected to the mounting opening 22 to seal the gap between the liquid inlet structure 10 and the liquid outlet structure 20. The fixed connection method can be selected by welding or setting a sealing member for sealing. The setting of the cover plate 12 is convenient for fixed connection and is more suitable for the situation where the volume of the two-phase fluid increases after passing through the fluid inlet 11 and colliding with the mixing plate 31. This can avoid direct compression of the two-phase fluid, resulting in an increase in the proportion of liquid molecular clusters, and then clogging the mixer. In addition, the welding between the cover plate 12 and the mounting opening 22 is more convenient, and the welding position is far away from the fluid inlet 11, which has less impact on the size of the fluid inlet 11, and is more conducive to the stable operation of the heat exchanger.

[0041] like Figure 2 、 Figure 4 and Figure 5 As shown, in the technical solution of this embodiment, the liquid inlet structure 10 also includes a connecting column 13, and the connecting column 13 is fixedly connected to the mixing plate 31 and the cover plate 12 respectively. The setting of the connecting column 13 is used to connect the mixing plate 31 and the cover plate 12 to ensure the stability of the connection. On the other hand, it is used to control the distance between the cover plate 12 and the mixing plate 31 when assembling the liquid inlet structure 10. It should be noted that the connecting column 13 can specifically be a cylinder or a prism. The cylinder or the prism has little effect on the flow of the fluid and can play a certain diversion role, making the mixing more uniform. The connecting column 13 can be set to multiple, and multiple connecting columns 13 are arranged around, so that the connection is more stable and the effect is better. Specifically, the connecting column 13 is set to 8, which are arranged around the axis of the mixing plate 31, so that the support effect of the combination is better.

[0042] like Figure 4 As shown, in the technical solution of this embodiment, the fluid inlet 11, cover plate 12, connecting column 13, flow mixing plate 31, block 32, and cylindrical section 33 form an integrated structure. This arrangement makes the structure more compact and avoids the complication of the multi-stage welding process. During assembly, the entire liquid inlet structure 10 and the flow mixing structure 30 are inserted into the liquid outlet structure 20. The cylindrical section 33 and the bottom wall of the liquid outlet structure 20 are abutted to achieve vertical positioning. The cover plate 12 and the mounting opening 22 cooperate to achieve horizontal positioning. The cover plate 12 and the mounting opening 22 are then fixed together.

[0043] It should be noted that the embodiments of the present application are directed to the gas-liquid two-phase flow process, in which gas-liquid separation occurs during the flow process. Since the flow channels of a heat exchanger, especially those of a plate heat exchanger, are parallel channels with a front-to-back relationship, gas-liquid separation will cause most of the liquid to flow into the channel near the inlet, while the channel far from the inlet will have less liquid, resulting in the aforementioned blockage problem in the channel near the inlet and "evaporation" problem in the channel far from the inlet, significantly reducing the overall performance of the heat exchanger. To address the above-mentioned problem, the embodiments of the present application design a flow mixer for use in front of the inlet header of a heat exchanger, especially a plate heat exchanger.

[0044] In the technical solution of this embodiment, the flow mixer comprises a liquid inlet structure 10, a liquid outlet structure 20, and a flow mixing structure 30. The liquid inlet structure 10 is sealed and fixed by welding the sidewall of the cover plate 12 to the inner surface of the mounting opening 22 of the liquid outlet structure 20. The flow mixing structure 30 is assembled with the inner wall of the liquid outlet structure 20 to form a 360° through-flow channel.

[0045] 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 mixing flow structure 30 includes a mixing flow plate 31, a block 32 and a cylindrical section 33. The fluid inlet 11 is connected to the upstream pipeline and serves to transport the fluid. The cover plate 12 serves to seal. The connecting column 13 connects the cover plate 12 and the mixing flow plate 31 to serve as a reinforcement. The connecting column 13 adopts a streamlined structure to reduce flow resistance and is not limited to a cylindrical shape. The mixing flow plate 31 serves as a preliminary mixing flow. The first mixing flow gap 41 is tapered and 360° through, serving to accelerate the mixing of the fluid. The cylindrical section 33 is provided with a fluid through hole 331 to serve as a liquid outlet.

[0046] In this embodiment, the liquid outlet structure 20 comprises an installation opening 22, an inner wall, and a bottom wall. The bottom wall forms a 90-degree angle with the inner wall. A fluid outlet 21 is provided on the bottom wall. When assembled with the block 32, the inner wall forms a first mixing gap 41, which also serves as a reinforcement. The bottom wall redirects fluid flow, further mixing the two-phase fluid around the periphery of the cylindrical section 33. The fluid outlet 21 connects to the heat exchanger inlet manifold, delivering the highly mixed gas-liquid two-phase fluid to the heat exchanger.

[0047] In the technical solution of this embodiment, the refrigerant enters the mixer from the fluid inlet 11. The high-speed refrigerant vertically impacts the mixing plate 31 and flows radially in all directions, completing the preliminary mixing of gas and liquid. It flows through the connecting column 13 and enters the first mixing gap 41. The first mixing gap 41 is a 360-degree through-structure. Along the flow direction, the cross-sectional area of the first mixing gap 41 gradually decreases, and the flow rate of the gas-liquid two-phase fluid gradually increases. The two-phase refrigerant continues to mix and flow in the branch channel, and the flow pattern of the gas-liquid two-phase fluid changes, developing into a mist flow, and the mixing uniformity is improved. After the gas-liquid two-phase fluid flows out of the first mixing gap 41, it enters the surrounding area of the cylindrical section 33, impacts the bottom wall of the liquid outlet structure 20, changes its flow direction, and enters the fluid outlet 21 after final mixing through the fluid through hole 331.

[0048] The technical solution of this embodiment employs a vertical impingement mixing method to achieve initial mixing of gas and liquid. The cross-section of the first mixing gap 41 gradually decreases along the fluid flow direction, accelerating the fluid, changing the gas-liquid flow pattern, and improving mixing uniformity. The design of the bottom wall of the liquid outlet structure 20 and the cylindrical section 33 redirects the flow of the two-phase fluid, directing it from the fluid through-hole 331 to the fluid outlet 21, providing a highly mixed gas-liquid two-phase flow for the heat exchanger. This embodiment's mixer ensures thorough mixing of the gas-liquid two-phase fluids, boasts a simple and reliable structure, low resistance, no fine structures, no clogging issues, and excellent workability, resulting in practical application value.

[0049] In a second aspect, embodiments of the present application provide a heat exchanger comprising an inlet manifold and a mixer, the mixer being the aforementioned mixer, the fluid outlet of the mixer being connected to the inlet manifold. In a heat exchanger using the aforementioned mixer, when the coolant enters the inlet manifold of the heat exchanger, there is no gas-liquid separation of the two-phase cooling medium. This avoids severe uneven distribution of the gas-liquid two-phase fluid to each flow channel after the cooling medium enters the inlet manifold of the plate heat exchanger. This avoids the phenomenon of refrigerant "evaporation" in flow channels with less liquid, which sharply deteriorates heat transfer. In flow channels with too much liquid, the liquid evaporates and clogs the channels, also causing deterioration in heat transfer and significantly reducing the overall performance of the heat exchanger. Such a heat exchanger has a lower failure rate and a longer service life. Specifically, the heat exchanger can be a plate heat exchanger, in which heat exchange channels are formed between the plates, through which heat exchange is performed. Plate heat exchangers are ideal equipment for liquid-to-liquid and liquid-to-vapor heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, wide application and long service life.

[0050] Thirdly, embodiments of the present application provide a gas conditioning device comprising the aforementioned heat exchanger. The gas conditioning device includes an air conditioner and a fresh air device. Using the aforementioned heat exchanger improves heat exchange efficiency, reduces the risk of heat exchanger damage, and provides a better user experience.

[0051] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0052] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0053] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A flow mixer, characterized in that: include: A liquid inlet structure (10), the liquid inlet structure (10) comprising a fluid inlet (11); a liquid outlet structure (20), the liquid outlet structure (20) comprising a fluid outlet (21), the liquid inlet structure (10) and the liquid outlet structure (20) forming a fluid channel, the fluid outlet (21) being in communication with a heat exchanger; A mixing structure (30), the mixing structure (30) comprising a mixing plate (31), a block (32) and a cylindrical section (33), the mixing plate (31) being arranged in the fluid channel opposite to the fluid inlet (11), the outer side of the mixing plate (31) being gap-matched with the liquid outlet structure (20), the block (32) being fixedly connected to a side of the mixing plate (31) away from the fluid inlet (11), forming a first mixing gap (41) between the block (32) and the inner wall of the liquid outlet structure (20), and the cross-sectional area of the first mixing gap (41) gradually decreasing along the direction of the fluid channel approaching the fluid outlet (21), the cylindrical section (33) being fixedly connected to an end of the block (32) away from the mixing plate (31), and forming a second mixing gap (42) between the outer side of the cylindrical section (33) and the inner wall of the liquid outlet structure (20).

2. The flow mixer according to claim 1, characterized in that 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) remains unchanged.

3. The flow mixer according to claim 2, wherein: The block (32) and the liquid outlet structure (20) are both rotating body structures.

4. The flow mixer according to claim 1, wherein The cylindrical section (33) is provided with a fluid through hole (331), and the inner wall of the cylindrical section (33) is in communication with the fluid outlet (21).

5. The flow mixer according to claim 4, characterized in that 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 to the bottom wall of the liquid outlet structure (20).

6. The flow mixer according to claim 4, characterized in that An end of the cylindrical section (33) away from the block (32) forms a third mixed flow gap with the bottom wall of the liquid outlet structure (20).

7. The flow mixer according to claim 4, characterized in that The liquid inlet structure (10) further comprises a cover plate (12); an installation opening (22) is provided at one end of the mixing flow structure (30) away from the fluid outlet (21); the cover plate (12) extends into the installation opening (22); and the cover plate (12) is fixedly connected to the installation opening (22).

8. The flow mixer according to claim 7, characterized in that The liquid inlet structure (10) further comprises a connecting column (13), wherein the connecting column (13) is fixedly connected to the mixing plate (31) and the cover plate (12) respectively.

9. The flow mixer according to claim 8, characterized in that 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 an integrated structure.

10. A heat exchanger, characterized in that: The heat exchanger includes an inlet header and a flow mixer, wherein the flow mixer is the flow mixer according to any one of claims 1 to 9, and a fluid outlet of the flow mixer is connected to the inlet header.

11. A gas regulating device, characterized in that: The gas conditioning device comprises the heat exchanger of claim 10 .

Images