A heat exchange core plate, a total heat exchange module, a ventilation device, and an air conditioner

Abstract

The present invention provides a heat exchange core plate, a total heat exchange module, a ventilation device and an air conditioner. A first flow channel, a second flow channel and a turning flow channel connecting the first flow channel and the second flow channel are formed on one side surface of the heat exchange core plate; an inclined guide surface is formed on the outer guide edge of the turning flow channel, and the inclined guide surface extends from the first flow channel side to the second flow channel side; the second flow channel includes a plurality of juxtaposed sub-flow channels, and a flow channel communication port communicating with the turning flow channel is formed at one end of each sub-flow channel close to / connected to the turning flow channel, and the flow channel communication ports of the plurality of juxtaposed sub-flow channels are formed in a staggered manner in the oblique direction corresponding to the inclined guide surface in terms of the opening direction. Through the above technical solution, under the cooperation of the inclined guide surface and the staggered flow channel communication ports, the fluid flowing out of the turning flow channel is evenly distributed into a plurality of sub-flow channels, realizing the uniform distribution of the fluid; further ensuring the uniform heat exchange during the heat exchange process.

Description

Technical Field

[0001] The present invention relates to an air-conditioning total heat exchanger, and more particularly to a heat exchange core plate, a total heat exchange module, a ventilation device, and an air conditioner. Background Art

[0002] With the development of society, people's living standards have been greatly improved, and air conditioners have become one of the essential household appliances in people's lives. However, traditional air conditioners have a single function and cannot meet people's needs for a high-quality and healthy life.

[0003] The existing total heat exchange core is used as an air exhaust and ventilation device for air conditioners. Its working principle is as follows: when the product is working, the indoor exhaust air and fresh air flow through the heat exchanger core in a positive cross-flow manner respectively. Due to the temperature difference and vapor partial pressure difference between the airflows on both sides of the air flow partition plate, heat transfer and mass transfer phenomena occur when the two airflows pass through the partition plate, causing a total heat exchange process. During summer operation, the fresh air obtains cold energy from the air exhaust of the air conditioner, reducing the temperature, and at the same time is dried by the air of the air conditioner, reducing the moisture content of the fresh air; during winter operation, the fresh air obtains heat from the air exhaust of the air conditioner room, increasing the temperature, and at the same time is humidified by the air exhaust of the air conditioner room. In this way, through the total heat exchange process of the heat exchange core, the fresh air recovers energy from the air exhaust of the air conditioner.

[0004] It can be seen that the working efficiency of the total heat exchange core determines the working efficiency of the total heat exchanger product. In the prior art, the vertical cross-flow heat exchange of air between layers is mostly used, and its heat exchange time is short and the heat exchange efficiency is low; in order to improve the working efficiency of the total heat exchanger product and reduce the operating cost, a total heat exchange core with a higher heat exchange rate is urgently needed. Summary of the Invention

[0005] The purpose of the present invention is to provide a heat exchange core plate, a total heat exchange module, a ventilation device, and an air conditioner. Through the structural design of the heat exchange core plate, the indoor turbid air and outdoor fresh air flow in from different openings of the structurally asymmetric heat exchange core plate, and further assemble the heat exchange core plate into a total heat exchange module, on which a turbid air flow layer and a fresh air flow layer are alternately arranged, so as to increase the diversion and drainage effect of the internal air duct structure of the total heat exchange module, and realize longer heat exchange by changing the flow velocity of the air at different parts of the flow layer, increasing the heat exchange efficiency.

[0006] To achieve the above object, the present invention provides a heat exchange core plate, on one side surface of which a flow channel is formed. The flow channel includes a first flow channel in a first flow direction, a second flow channel in a second flow direction, and a turning flow channel connecting the first flow channel and the second flow channel; an inclined guide surface is formed on the outer guide edge of the turning flow channel, and the inclined guide surface extends from the first flow channel side to the second flow channel side;

[0007] The second flow channel includes multiple columns of sub-flow channels. Each sub-flow channel is formed with a flow channel connection port communicating with the turning flow channel at one end close to / connected to the turning flow channel, and the flow channel connection ports of multiple juxtaposed sub-flow channels are formed with a dislocation in the oblique direction corresponding to the oblique guide surface.

[0008] Through the above technical solution, a first flow channel, a second flow channel, and a turning flow channel connecting the first flow channel and the second flow channel are formed on the heat exchange core plate; an outer guide edge of the turning flow channel is formed with an oblique guide surface, and the oblique guide surface extends from the first flow channel side to the second flow channel side; the second flow channel includes multiple juxtaposed sub-flow channels, each sub-flow channel is formed with a flow channel connection port communicating with the turning flow channel at one end close to / connected to the turning flow channel, and the flow channel connection ports of multiple juxtaposed sub-flow channels are formed with a dislocation in the oblique direction corresponding to the oblique guide surface; when the fluid flows from the first flow channel into the second flow channel, under the cooperation of the oblique guide surface and the dislocated flow channel connection ports, the fluid flowing out of the turning flow channel is evenly distributed into multiple sub-flow channels, realizing the uniform distribution of the fluid; when the fluid is indoor turbid air and in the case of fluid heat exchange, by realizing the uniform distribution of the indoor turbid air on the sub-flow channels, the uniform heat exchange in the heat exchange process is ensured.

[0009] Optionally, the oblique guide surface is an arc-shaped guide surface.

[0010] Optionally, at least one partition plate and at least one flow dividing plate are formed on the side surface of the heat exchange core plate. The partition plate is used to divide one side of the heat exchange core plate into a first flow channel, a second flow channel, and a turning flow channel; the flow dividing plate divides the second flow channel to form multiple sub-flow channels.

[0011] Optionally, there are multiple flow dividing plates. The multiple flow dividing plates are arranged in the second flow channel, and the multiple flow dividing plates are arranged with a dislocation at one end close to the turning flow channel to form dislocated flow channel connection ports.

[0012] Optionally, there are N flow dividing plates. The multiple flow dividing plates are sorted according to the distance from the first flow channel; the Nth flow dividing plate is the flow dividing plate farthest from the first flow channel. The distances between the ends of the N flow dividing plates on the turning flow channel side and the arc-shaped guide surface in the direction perpendicular to the extension direction of the flow dividing plate are H1, H2,..., Hn respectively, and H1≧H2≧…Hi…≧Hn, n≧i.

[0013] Optionally, there are N flow dividing plates. The multiple flow dividing plates are sorted according to the distance from the first flow channel; the Nth flow dividing plate is the flow dividing plate farthest from the first flow channel. The distances between the ends of the N flow dividing plates on the turning flow channel side and the arc-shaped guide surface in the extension direction of the flow dividing plate are L1, L2...Ln respectively, and L1≧L2≧…Li…≧Ln, n≧i.

[0014] Optionally, the first flow channel forms a first opening at the other end away from the turning flow channel; an arc-shaped drainage structure is provided at the first opening of the first flow channel; the second flow channel forms a second opening on the other side away from the turning flow channel; a plurality of flow dividing plates of the second flow channel form a staggered arrangement with the same misalignment direction as one end of the turning flow channel on the side of the second opening.

[0015] Optionally, the flow dividing plate is corrugated.

[0016] Optionally, the cross-sectional area of the first flow channel is smaller than the cross-sectional area of the second flow channel.

[0017] Optionally, the heat exchange core plate has a flow channel structure that is mirror-symmetrical to the above-mentioned heat exchange core plate.

[0018] A total heat exchange module includes the above-mentioned multiple heat exchange core plates stacked to form a total heat exchange module, and the first flow channels of the multiple heat exchange core plates are arranged on the same side of the total heat exchange module, and the second flow channels of the multiple heat exchange core plates are arranged on the same side of the total heat exchange module.

[0019] A total heat exchange module includes the above-mentioned heat exchange core plate and a heat exchange core plate with a flow channel structure that is mirror-symmetrical to the above-mentioned heat exchange core plate stacked to form a total heat exchange module; the first flow channels of the multiple heat exchange core plates are arranged on the same side of the total heat exchange module, and the second flow channels of the multiple heat exchange core plates are arranged on the same side of the total heat exchange module.

[0020] Optionally, the total heat exchange module alternately forms a turbid air flow layer and a fresh air flow layer by the heat exchange core plates. The first opening of the heat exchange core plate forming the turbid air flow layer is the indoor turbid air flow inlet; the second opening of the heat exchange core plate forming the turbid air flow layer is the indoor turbid air flow outlet; the first opening of the heat exchange core plate forming the fresh air flow layer is the outdoor fresh air flow outlet; the second opening of the heat exchange core plate forming the fresh air flow layer is the outdoor fresh air flow inlet.

[0021] Optionally, the total heat exchange module alternately forms a turbid air flow layer and a fresh air flow layer by the heat exchange core plates. The first opening of the heat exchange core plate forming the turbid air flow layer is the indoor turbid air flow outlet; the second opening of the heat exchange core plate forming the turbid air flow layer is the indoor turbid air flow inlet; the first opening of the heat exchange core plate forming the fresh air flow layer is the outdoor fresh air flow inlet; the second opening of the heat exchange core plate forming the fresh air flow layer is the outdoor fresh air flow outlet.

[0022] A total heat exchange ventilation device is provided with the above-mentioned heat exchange core plate or the above-mentioned total heat exchange module.

[0023] A full heat exchange ventilation device, the full heat exchange ventilation device is provided with the above-mentioned full heat exchange module in which the turbid air flow layer and the fresh air flow layer are alternately formed by the heat exchange core plate, and the full heat exchange ventilation device is also provided with an indoor turbid air inlet duct, an indoor turbid air outlet duct, an outdoor fresh air inlet duct and an outdoor fresh air outlet duct; the indoor turbid air inlet of the turbid air flow layer is connected to the indoor turbid air inlet duct; the indoor turbid air outlet of the turbid air flow layer is connected to the indoor turbid air outlet duct; the outdoor fresh air inlet of the outdoor fresh air flow layer is connected to the outdoor fresh air inlet duct; the outdoor fresh air outlet of the outdoor fresh air flow layer is connected to the outdoor fresh air outlet duct.

[0024] An air conditioner that introduces outdoor fresh air while achieving heat exchange between the outdoor fresh air and indoor stale air. The air conditioner is provided with the above-mentioned heat exchange core plate or the above-mentioned full heat exchange module or the above-mentioned full heat exchange ventilation device.

[0025] 14. The heat exchanger as claimed in claim 13, wherein the heat exchanger is arranged on a pair of opposite ends of the air conditioner to contact with each other, wherein the pair is connected by a channel connecting the first and second channels, wherein the channel connecting the second end of the air conditioner is connected to the channel connecting with the first end. Furthermore, by alternating the heat exchange core plates to form a full heat exchange module, and distinguishing between the stale air flow layer and the fresh air flow layer on the full heat exchange module, the cross-sectional areas of the first flow channel and the second flow channel are further optimized; thereby changing the air flow velocity in different parts of the flow layer to achieve longer heat exchange time and increase the heat exchange efficiency. Corrugated partitions are further used to improve the uneven air volume distribution and uneven heat exchange in the air duct. By installing the above-mentioned full heat exchange module on the air conditioner, the heat exchange efficiency is improved, thereby reducing the operating cost of the air conditioner, making the air conditioner more energy-efficient during operation, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional diagram of a full heat exchange module according to an embodiment of the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of a heat exchange core plate according to an embodiment of the present invention;

[0028] Figure 3 This is the plane structure diagram of the heat exchange core plate according to the embodiment of the present invention;

[0029] Figure 4 This is the embodiment of the present invention Figure 2 The mirror image structure example diagram of the heat exchange core plate;

[0030] Figure 5 This is the embodiment of the present invention Figure 4 The plane structure diagram of the heat exchange core plate;

[0031] 1 - Total heat exchange module; 2 - Heat exchange core plate; 3 - First flow channel; 31 - First opening; 4 - Second flow channel; 41 - Sub - flow channel; 42 - Flow channel connection port; 43 - Second opening; 5 - Steering flow channel; 51 - Oblique guide surface; 6 - Partition plate; 7 - Shunt plate; Detailed implementation manners

[0032] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0033] It should be pointed out that the following detailed description is illustrative and is intended to provide further description of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0034] As used herein, words such as "first", "second", etc. can be used to describe the elements in the exemplary embodiments of the present invention. These words are only used to distinguish one element from another element, and the inherent characteristics or order of the corresponding elements are not restricted by these words. Unless otherwise defined, all terms (including technical or scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. Terms defined in a common dictionary are interpreted to have the same meaning as the context in the relevant technical field, and are not interpreted to have an ideal or overly formal meaning, unless clearly defined as having such a meaning in the present invention.

[0035] Those skilled in the art will understand that the devices and methods of the present invention described herein and illustrated in the drawings are non - restrictive exemplary embodiments, and the scope of the present invention is only defined by the claims. The features described or illustrated in combination with one exemplary embodiment can be combined with the features of other embodiments. Such modifications and variations are included within the scope of the present invention.

[0036] Embodiment 1

[0037] This embodiment provides a heat exchange core plate. Flow channels are formed on one side of the heat exchange core plate. The flow channels include a first flow channel in a first flow direction, a second flow channel in a second flow direction, and a turning flow channel connecting the first flow channel and the second flow channel; an inclined guide surface is formed on the outer guide edge of the turning flow channel, and the inclined guide surface extends from the first flow channel side to the second flow channel side; and a plurality of parallel sub-flow channels are formed in the second flow channel, and each sub-flow channel is formed with a flow channel connection port communicating with the turning flow channel at one end close to / connected to the turning flow channel. The flow channel connection port is a connection structure for the fluid flowing through the heat exchange core plate to flow in or out; specifically, the flow channel connection ports of the plurality of parallel sub-flow channels are formed with offsets in the direction corresponding to the inclined direction of the inclined guide surface, and an adapted corresponding relationship is formed with the inclined guide surface.

[0038] Through the above heat exchange core plate structure design, a first flow channel, a second flow channel and a turning flow channel connecting the first flow channel and the second flow channel are formed on the heat exchange core plate; an inclined guide surface is formed on the outer guide edge of the turning flow channel, and the inclined guide surface extends from the first flow channel side to the second flow channel side; the second flow channel includes a plurality of parallel sub-flow channels, and each sub-flow channel is formed with a flow channel connection port communicating with the turning flow channel at one end close to / connected to the turning flow channel, and the flow channel connection ports of the plurality of parallel sub-flow channels are formed with offsets in the direction corresponding to the inclined direction of the inclined guide surface; when the fluid flows from the first flow channel into the second flow channel, under the cooperation of the inclined guide surface and the offset-formed flow channel connection ports, the fluid flowing out of the turning flow channel is evenly distributed into a plurality of sub-flow channels, realizing the even distribution of the fluid; when the fluid is indoor turbid air and in the case of fluid heat exchange, by realizing the even distribution of the indoor turbid air on the sub-flow channels, the evenness of heat exchange in the heat exchange process is ensured. In the specific implementation process, the inclined guide surface can be an arc-shaped guide surface. One end of the arc-shaped guide surface is connected to one side of the first flow channel, and extends in an arc shape along the direction away from the first flow channel to one side of the second flow channel and is connected to the second flow channel, thereby forming a guide structure. Whether the fluid flows from the first flow channel into the second flow channel or from the second flow channel into the first flow channel, through the design of the arc-shaped guide surface, the fluid will not cause energy loss due to the change of the fluid flow direction during the process of flowing through the turning flow channel.

[0039] Specifically, at least one partition plate and at least one flow dividing plate are formed on the side surface of the heat exchange core plate. The partition plate is used to divide one side of the heat exchange core plate into a first flow channel, a second flow channel, and a turning flow channel; the flow dividing plate divides the second flow channel into multiple sub-flow channels. Through the above partition plate and flow dividing plate, one side surface of the heat exchange core plate is divided, thereby forming a first flow channel, a second flow channel, and a turning flow channel; and the second flow channel is divided by the flow dividing plate; specifically, there are multiple flow dividing plates, and the multiple flow dividing plates are arranged in the second flow channel, and the multiple flow dividing plates are arranged in a staggered manner at one end close to the turning flow channel to form a staggered flow channel communication port. By arranging the flow dividing plates in a staggered manner at one end close to the turning flow channel, specifically, they are arranged in a gradually increasing manner in the direction of the inclined guide surface of the turning flow channel, thereby forming a staggered flow channel communication port. Specifically, there are N flow dividing plates, and the multiple flow dividing plates are sorted according to the distance from the first flow channel; the Nth flow dividing plate is the flow dividing plate farthest from the first flow channel, and the distances between the ends of the N flow dividing plates on one side of the turning flow channel and the arc-shaped guide surface in the direction perpendicular to the extension direction of the flow dividing plate are H1, H2,..., Hn respectively, where H1, H2,..., Hn satisfy H1≧H2≧...Hi...≧Hn, n≧i. In this embodiment, by further limiting the arc-shaped guide surface of the turning flow channel and the end positions of the flow dividing plates, the distance between the arc-shaped guide surface and the flow dividing plates becomes closer and closer in the extension direction, forming a gradually shrinking turning flow channel; thus, when the fluid flows from the first flow channel to the flow channel communication port of the second flow channel, a more uniform distribution of the fluid is achieved; specifically, when the fluid flows from the first flow channel through the turning flow channel and enters the multiple sub-flow channels of the second flow channel, due to the staggered flow channel communication ports, the fluid is first distributed and flows into the sub-flow channels close to the first flow channel, and then is gradually distributed along the extension direction of the arc-shaped guide surface.

[0040] Optionally, there are N flow dividing plates, and the multiple flow dividing plates are sorted according to the distance from the first flow channel; the Nth flow dividing plate is the flow dividing plate farthest from the first flow channel, and the distances between the ends of the N flow dividing plates on one side of the turning flow channel and the arc-shaped guide surface in the extension direction of the flow dividing plate are L1, L2,..., Ln respectively, where L1, L2,..., Ln satisfy L1≧L2≧...Li...≧Ln, n≧i. This embodiment is a further optimization of the ends of the flow dividing plates on one side of the turning flow channel. By further limiting the distances between the ends of the flow dividing plates on one side of the turning flow channel and the arc-shaped guide surface in the extension direction of the flow dividing plates, in the case of forming staggered flow channel communication ports, a gradually shrinking flow channel structure is formed on one side of the second flow channel along the direction of the arc-shaped guide surface, and in cooperation with the staggered flow channel communication ports, a more uniform distribution of the fluid flowing into the second flow channel from the first flow channel is achieved; at the same time, when the fluid flows from the second flow channel into the first flow channel, the flow space gradually becomes larger, and when flowing into the turning flow channel, the fluids flowing out of the multiple sub-flow channels converge and flow into the first flow channel through the turning flow channel, realizing the uniform mixing of the fluids flowing out of the multiple sub-flow channels.

[0041] Further optimized, to achieve the inflow and outflow of fluid on the heat exchange core plate; a first opening is formed at the other end of the first flow channel far from the turning flow channel; an arc-shaped drainage structure is provided at the first opening of the first flow channel; through the setting of the arc-shaped drainage structure, the energy loss of the fluid flowing through the first flow channel is reduced; a second opening is formed on the other side of the second flow channel far from the turning flow channel; a plurality of flow dividing plates of the second flow channel form a staggered arrangement with the same misalignment direction as one end of the turning flow channel on the side of the second opening. In this embodiment, by respectively arranging the first opening and the second opening on the side far from the turning flow channel, when the fluid flows in from the first opening or the second opening, a U-shaped flow trajectory is formed on the heat exchange core plate; further, a staggered arrangement with the same misalignment direction as one end of the turning flow channel is formed on the side of the second opening. Specifically, a plurality of flow dividing plates are gradually shortened in the direction towards the second opening, so as to form a plurality of flow channel communication ports facing the second opening and arranged in cooperation with the second opening, realizing faster introduction and export of the fluid; further optimized, a plurality of flow dividing plates perpendicular to the second flow channel are also provided on the heat exchange core plate, and the plurality of flow channel communication ports formed at the second opening are directly connected to the second opening, so that the fluid can flow along the plurality of sub-flow channels already formed in the second flow channel during the inflow or outflow process, thereby achieving the purpose of uniform distribution of the fluid. In the specific implementation process, the flow dividing plate can be a straight plate, dividing the second flow channel into a plurality of parallel sub-flow channels, and the plurality of sub-flow channels can be sub-flow channels with the same interval or sub-flow channels with different widths; at the same time, it can also be set to other shapes, such as the optional flow dividing plate being corrugated.

[0042] Further optimized, the cross-sectional area of the first flow channel is set to be smaller than the cross-sectional area of the second flow channel. When the fluid flows from the first flow channel into the second flow channel, due to the design of the change in cross-sectional area, when the fluid flows into the second flow channel, the fluid diffuses due to the expansion of the cross-sectional area, thereby slowing down the fluid flow velocity; and when the fluid flows from the second flow channel into the first flow channel, due to the reduction of the cross-sectional area of the flow channel, the time for the fluid to flow into the first flow channel is slowed down, so that the fluid can stay in the second flow channel for a longer time; therefore, when the fluid exchanges heat in the second flow channel, the heat exchange time is longer, achieving more sufficient heat exchange. In the actual implementation process, the space proportion range of the first flow channel in the whole flow channel is 1 / 10 - 1 / 2, and further 2 / 5 - 1 / 2, and the space proportion range of the second flow channel in the whole flow channel is 1 / 2 - 9 / 10, and further optimized to 1 / 2 - 2 / 3, so as to achieve the setting that the cross-sectional area of the first flow channel is smaller than the cross-sectional area of the second flow channel.

[0043] In this embodiment, a first flow channel, a second flow channel, and a turning flow channel connecting the first flow channel and the second flow channel are formed on the heat exchange core plate; an inclined guide surface is formed on the outer guide edge of the turning flow channel, and the inclined guide surface extends from the first flow channel side to the second flow channel side; the second flow channel includes a plurality of juxtaposed sub-flow channels, and a flow channel communication port communicating with the turning flow channel is formed at one end of each sub-flow channel close to / connected to the turning flow channel, and the flow channel communication ports of the plurality of juxtaposed sub-flow channels are formed in a staggered manner in the oblique direction corresponding to the inclined direction of the inclined guide surface; when the fluid flows from the first flow channel into the second flow channel, under the cooperation of the inclined guide surface and the staggered flow channel communication ports, the fluid flowing out of the turning flow channel is evenly distributed into the plurality of sub-flow channels, realizing the uniform distribution of the fluid; when the fluid is indoor turbid air and in the case of fluid heat exchange, by realizing the uniform distribution of the indoor turbid air on the sub-flow channels, the uniform heat exchange in the heat exchange process is ensured.

[0044] Embodiment 2

[0045] This embodiment provides a heat exchange core plate. Specifically, the heat exchange core plate has a structure that is mirror-symmetrical to the heat exchange core plate described in Embodiment 1. Further, the heat exchange core plate of this embodiment has a flow channel structure that is mirror-symmetrical. By forming a mirror-symmetrical arrangement with the heat exchange core plate of Embodiment 1, a heat exchange core plate structure that is similar but not exactly the same as that of the heat exchange core plate of Embodiment 1 is formed; further, the heat exchange core plate in the embodiment and the heat exchange core plate in this embodiment are alternately stacked to form a total heat exchange module. Specifically, the first flow channels of multiple heat exchange core plates are arranged on the same side of the total heat exchange module; the second flow channels of multiple heat exchange core plates are arranged on the same side of the total heat exchange module.

[0046] At the same time, a turbid air flow layer and a fresh air flow layer are alternately formed by the heat exchange core plates on the total heat exchange module. The first opening of the heat exchange core plate forming the turbid air flow layer is the indoor turbid air inlet; the second opening of the heat exchange core plate forming the turbid air flow layer is the indoor turbid air outlet; the first opening of the heat exchange core plate forming the fresh air flow layer is the outdoor fresh air outlet; the second opening of the heat exchange core plate forming the fresh air flow layer is the outdoor fresh air inlet. An heat exchange layer for realizing heat exchange between outdoor fresh air and indoor turbid air is provided between the turbid air flow layer and the fresh air flow layer, and the heat exchange layer can specifically be a heat exchange membrane.

[0047] Through the above technical scheme, a full heat exchange module is formed by alternatingly stacking the turbid air flow layer and the fresh air flow layer in sequence; during the heat exchange process, the indoor turbid air flows in from the indoor turbid air inlet of the turbid air flow layer arranged on the first flow channel side, flows through the turning flow channel arranged between the first flow channel and the second flow channel, flows into the second flow channel, and flows out to the outside from the turbid air outlet arranged on the second flow channel; the outdoor fresh air flows in from the outdoor fresh air inlet of the fresh air flow layer arranged in the second flow channel, flows through the turning flow channel arranged between the second flow channel and the first flow channel of the fresh air flow layer, and then flows into the first flow channel, and flows into the room from the outdoor fresh air outlet arranged in the first flow channel; the above-mentioned outdoor fresh air and the indoor turbid air have the same flow direction in the turbid air flow layer and the fresh air flow layer, thereby achieving the purpose of heat exchange of the inflowing outdoor fresh air through heat exchange between the outdoor fresh air and the indoor turbid air while achieving the introduction of outdoor fresh air.

[0048] Furthermore, by forming a heat exchange core plate structure of a full heat exchange module, when the indoor turbid air flows through the curved guide surface set in the turbid air flow layer and the second flow channel of the offset flow channel connecting port set in conjunction with the curved guide surface, the indoor turbid air is evenly distributed among the different sub-flow channels of the second flow channel, solving the problem of uneven heat exchange caused by uneven fluid distribution in the existing flow channel. Furthermore, the cross-sectional area of the first flow channel is set to be smaller than the cross-sectional area of the second flow channel. When the indoor turbid air flows from the first flow channel into the second flow channel, the indoor turbid air diffuses, thereby slowing down the flow speed of the indoor turbid air in the second flow channel. By changing the flow speed of the air in the turbid air flow layer, heat exchange is achieved for a longer time, thereby increasing the heat exchange efficiency.

[0049] When outdoor fresh air flows into the second channel from the fresh air inlet of the fresh air flow layer, because a plurality of parallel sub-flow channels are formed in the second flow channel, the outdoor fresh air is evenly distributed on the second flow channel side and forms a more sufficient heat exchange with the indoor turbid air in the second flow channel flowing through the turbid air flow layer; when the outdoor fresh air flows into the turning flow channel from the multiple sub-flow channels of the fresh air flow layer, because a plurality of diverter plates form the staggered flow channel connecting ports on the turning flow channel side, when the outdoor fresh air flows into the staggered flow channel connecting ports, the outdoor fresh air realizes heat exchange in the self-flow channel and converges at the staggered flow channel connecting ports to realize sufficient mixing of the fluid, and further flows from the turning flow channel into the first flow channel of the fresh air flow layer and flows out from the outdoor fresh air outlet set in the first flow channel to realize uniform heat exchange. At the same time, the cross-sectional area of the first flow channel is further set to be smaller than the cross-sectional area of the second flow channel. When the outdoor dirty air flows into the first flow channel from the second flow channel, the cross-sectional area of the flow channel is reduced, thereby increasing the length of time the outdoor fresh air flows from the second flow channel to the first flow channel; increasing the length of time the outdoor fresh air stays in the second flow channel, and further increasing the heat exchange time between the outdoor fresh air and the indoor dirty air on the corresponding second flow channel side, thereby achieving more sufficient heat exchange.

[0050] Meanwhile, by correspondingly bending the flow dividing plate on the heat exchange core plate forming the total heat exchange core, the flow resistance of the fluid in the second flow channel is increased, thereby slowing down the air flow velocity, increasing the heat exchange duration, and further improving the heat exchange efficiency. In this embodiment, a corrugated partition structure is adopted, so that while the indoor turbid air and the outdoor fresh air have their flow velocities slowed down by the corrugated partition, without causing uneven heat exchange due to large-scale fluid turbulence, the air flowing through the air duct is timely disturbed, so that the air flowing in the air duct does not only flow along the air duct direction, but also forms a certain flow in the vertical direction. Through appropriate disturbance, more sufficient heat exchange of the flowing air is realized.

[0051] Further optimized, when heat exchanging different fluids, it may be necessary for different fluids to flow in from the first opening or the second opening of the total heat exchange module formed in this embodiment. The first opening of the heat exchange core plate forming the turbid air flow layer is allocated as the indoor turbid air flow outlet; the second opening of the heat exchange core plate forming the turbid air flow layer is allocated as the indoor turbid air flow inlet; the first opening of the heat exchange core plate forming the fresh air flow layer is allocated as the outdoor fresh air flow inlet; the second opening of the heat exchange core plate forming the fresh air flow layer is allocated as the outdoor fresh air flow outlet. Another total heat exchange fluid flow mode and a total heat exchange module different from the indoor turbid air and outdoor fresh air inflow modes of the above embodiment are realized.

[0052] Embodiment 3

[0053] This embodiment provides a total heat exchange ventilation device, which is provided with the heat exchange core plate described in Embodiment 1 or the total heat exchange module described in Embodiment 2. Further optimized, when the total heat exchange ventilation device is provided with a total heat exchange module in which heat exchange core plates alternately form a turbid air flow layer and a fresh air flow layer, the total heat exchange ventilation device is further provided with an indoor turbid air inlet air duct, an indoor turbid air outlet air duct, an outdoor fresh air inlet air duct, and an outdoor fresh air outlet air duct. The indoor turbid air flow inlet of the turbid air flow layer is connected to the indoor turbid air inlet air duct; the indoor turbid air flow outlet of the turbid air flow layer is connected to the indoor turbid air outlet air duct; the outdoor fresh air flow inlet of the outdoor fresh air flow layer is connected to the outdoor fresh air inlet air duct; the outdoor fresh air flow outlet of the outdoor fresh air flow layer is connected to the outdoor fresh air outlet air duct. Further, air valves are arranged on the indoor turbid air inlet air duct, the indoor turbid air outlet air duct, the outdoor fresh air inlet air duct, and the outdoor fresh air outlet air duct to control the air flow in the air duct, so as to realize the total heat exchange of the indoor turbid air and the outdoor fresh air.

[0054] Embodiment 4

[0055] This embodiment provides an air conditioner that realizes the heat exchange between outdoor fresh air and indoor turbid air while introducing outdoor fresh air. The air conditioner adopts the heat exchange core plate described in Embodiment 1 above, or the total heat exchange module described in Embodiment 2, or the total heat exchange ventilation device described in Embodiment 3; it realizes the heat exchange between outdoor fresh air and indoor turbid air while introducing outdoor fresh air, reducing the energy consumption of the air conditioner; by alternately arranging heat exchange core plates to form a total heat exchange module with a turbid air flow layer and a fresh air flow layer, and through the optimization of the structure of the flowing air in the total heat exchange module, the flow velocity of the air at different parts of the flow layer is changed and the uniform distribution of the fluid in the total heat exchange module is realized; longer heat exchange time is achieved, increasing the heat exchange efficiency. At the same time, an arc-shaped structure is adopted for drainage inside the total heat exchange module to reduce energy loss, making the air conditioner more energy-efficient during use.

[0056] The present invention provides a heat exchange core plate, a total heat exchange module, a ventilation device and an air conditioner. A first flow channel, a second flow channel and a turning flow channel connecting the first flow channel and the second flow channel are formed on the heat exchange core plate; an inclined guide surface is formed on the outer guide edge of the turning flow channel, and the inclined guide surface extends from the first flow channel side to the second flow channel side; the second flow channel includes a plurality of juxtaposed sub-flow channels, and each sub-flow channel is formed with a flow channel connection port communicating with the turning flow channel at one end close to / connected to the turning flow channel, and the flow channel connection ports of the plurality of juxtaposed sub-flow channels are formed in a staggered manner in the oblique direction corresponding to the inclined direction of the inclined guide surface; when the fluid flows from the first flow channel into the second flow channel, under the cooperation of the inclined guide surface and the staggered flow channel connection ports, the fluid flowing out of the turning flow channel is evenly distributed into a plurality of sub-flow channels, realizing the uniform distribution of the fluid; when the fluid is indoor turbid air and under the condition of fluid heat exchange, by realizing the uniform distribution of indoor turbid air on the sub-flow channels, the uniform heat exchange during the heat exchange process is ensured. Further, by alternately arranging the heat exchange core plates to form a total heat exchange module, and differentiating a turbid air flow layer and a fresh air flow layer on the total heat exchange module, further, the cross-sectional areas of the first flow channel and the second flow channel are optimized; thereby changing the flow velocity of the air at different parts of the flow layer to achieve longer heat exchange time, increasing the heat exchange efficiency. Further, a corrugated partition is adopted to improve the problems of uneven air volume distribution and uneven heat exchange in the air duct. By arranging the above total heat exchange module on the air conditioner, the heat exchange efficiency is improved, thereby reducing the operating cost of the air conditioner, making the air conditioner more energy-efficient during operation, and improving the user experience.

[0057] The above-mentioned accompanying drawings and the detailed description of the present invention as examples of the present invention are used to explain the present invention, but do not limit the meaning or scope of the present invention described in the claims. Therefore, those skilled in the art can easily implement modifications from the above description. In addition, those skilled in the art can delete some of the constituent elements described herein without degrading the performance, or can add other constituent elements to improve the performance. In addition, those skilled in the art can change the order of the steps of the methods described herein according to the environment of the process or equipment. Therefore, the scope of the present invention should not be determined by the embodiments described above, but by the claims and their equivalents.

[0058] Although the present invention has been described in connection with presently considered to be achievable embodiments, it should be understood that the present invention is not limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent configurations included within the spirit and scope of the appended claims.

Claims

1. A heat exchange core plate, characterized in that: A flow channel is formed on one side surface of the heat exchange core plate, and the flow channel includes a first flow channel in a first flow direction, a second flow channel in a second flow direction, and a turning flow channel connected between the first flow channel and the second flow channel; an outer guide edge of the turning flow channel is formed with an inclined flow guide surface, and the inclined flow guide surface extends from the first flow channel side to the second flow channel side; The second flow channel includes a plurality of parallel sub-flow channels, each of which has a flow channel communication port formed at one end close to / connected to the turning flow channel and communicating with the turning flow channel, and the flow channel communication ports of the plurality of parallel sub-flow channels are staggered with their opening directions corresponding to the oblique direction of the oblique flow guide surface; The inclined flow guide surface is an arc-shaped flow guide surface, one end of the arc-shaped flow guide surface is connected to one side of the first flow channel, and the other end of the arc-shaped flow guide surface extends in an arc shape away from the first flow channel to one side of the second flow channel and is connected to the second flow channel; At least one diverter plate is formed on the side of the heat exchange core plate, and the diverter plate divides the second flow channel into a plurality of sub-flow channels; There are multiple diverter plates, and the multiple diverter plates are arranged in the second flow channel. The multiple diverter plates are staggered near one end of the turning flow channel to form staggered flow channel communication openings; There are N diverter plates, and the diverter plates are arranged in order of distance from the first flow channel; Among them, the Nth diverter plate is the diverter plate farthest from the first flow channel, and the distances between the ends of the N diverter plates on the side of the turning flow channel and the arc-shaped guide surface in the extension direction of the diverter plate are L1, L2, ..., Ln, respectively, and L1, L2, ..., Ln satisfy L1≧L2≧...Li...≧Ln, n≧i.

2. The heat exchange core plate according to claim 1, wherein At least one partition plate is formed on the side of the heat exchange core plate, and the partition plate is used to separate one side of the heat exchange core plate into a first flow channel, a second flow channel and a turning flow channel.

3. The heat exchange core plate according to claim 1, characterized in that, There are N diverter plates, and the multiple diverter plates are sorted according to their distance from the first flow channel; the Nth diverter plate is the diverter plate farthest from the first flow channel, and the distances between the ends of the N diverter plates on the side of the turning flow channel and the arc-shaped guide surface perpendicular to the extension direction of the diverter plates are H1, H2, ..., Hn, respectively, and H1, H2, ..., Hn satisfy H1≧H2≧...Hi...≧Hn, n≧i.

4. The heat exchange core plate according to any one of claims 1-3, characterized in that, The diverter plate is corrugated.

5. The heat exchange core plate according to any one of claims 1-3, characterized in that, The cross-sectional area of the first flow channel is smaller than the cross-sectional area of the second flow channel.

6. The heat exchange core plate according to claim 1, characterized in that, The first flow channel is formed with a first opening at the other end away from the turning flow channel; the first flow channel is provided with an arc-shaped drainage structure at the first opening; the second flow channel is formed with a second opening on the other side away from the turning flow channel; the multiple diverter plates of the second flow channel are formed on the second opening side with a staggered arrangement in the same direction as the staggered direction of one end of the turning flow channel.

7. A heat exchange core plate, characterized in that, The heat exchange core plate has a flow channel structure that is mirror-symmetrical to the heat exchange core plate described in claim 6.

8. A total heat exchange module, characterized in that A full heat exchange module is formed by stacking multiple heat exchange core plates according to any one of claims 1 to 6, and the first flow channels of the multiple heat exchange core plates are arranged on the same side of the full heat exchange module, and the second flow channels of the multiple heat exchange core plates are arranged on the same side of the full heat exchange module.

9. A total heat exchange module, characterized in that, The heat exchange core plates described in claim 6 and the heat exchange core plates described in claim 7 are alternately stacked to form a total heat exchange module; the first flow channels of the plurality of heat exchange core plates are arranged on the same side of the total heat exchange module, and the second flow channels of the plurality of heat exchange core plates are arranged on the same side of the total heat exchange module; Wherein: The total heat exchange module is formed by the heat exchange core plates alternately forming a polluted air flow layer and a fresh air flow layer. The first opening of the heat exchange core plate forming the polluted air flow layer is the indoor polluted air inlet; the second opening of the heat exchange core plate forming the polluted air flow layer is the indoor polluted air outlet; the first opening of the heat exchange core plate forming the fresh air flow layer is the outdoor fresh air outlet; the second opening of the heat exchange core plate forming the fresh air flow layer is the outdoor fresh air inlet.

10. A total heat exchange module, characterized in that, The heat exchange core plates described in claim 6 and the heat exchange core plates described in claim 7 are alternately stacked to form a total heat exchange module; the first flow channels of the plurality of heat exchange core plates are arranged on the same side of the total heat exchange module, and the second flow channels of the plurality of heat exchange core plates are arranged on the same side of the total heat exchange module; Wherein: The total heat exchange module is formed by the heat exchange core plates alternately forming a polluted air flow layer and a fresh air flow layer. The first opening of the heat exchange core plate forming the polluted air flow layer is the indoor polluted air outlet; the second opening of the heat exchange core plate forming the polluted air flow layer is the indoor polluted air inlet; the first opening of the heat exchange core plate forming the fresh air flow layer is the outdoor fresh air inlet; the second opening of the heat exchange core plate forming the fresh air flow layer is the outdoor fresh air outlet.

11. A total heat exchange ventilation device, characterized in that, The total heat exchange ventilation device is provided with the heat exchange core plate according to any one of claims 1-7 or the total heat exchange module according to any one of claims 8-10.

12. A total heat exchange ventilation device, characterized in that, The total heat exchange ventilation device is provided with the total heat exchange module described in claim 10, and the total heat exchange ventilation device is further provided with an indoor polluted air inlet air duct, an indoor polluted air outlet air duct, an outdoor fresh air inlet air duct, and an outdoor fresh air outlet air duct; the indoor polluted air inlet of the polluted air flow layer is connected to the indoor polluted air inlet air duct; the indoor polluted air outlet of the polluted air flow layer is connected to the indoor polluted air outlet air duct; the outdoor fresh air inlet of the fresh air flow layer is connected to the outdoor fresh air inlet air duct; the outdoor fresh air outlet of the fresh air flow layer is connected to the outdoor fresh air outlet air duct.

13. An air conditioner that realizes the heat exchange between outdoor fresh air and indoor turbid air while introducing outdoor fresh air, characterized in that, The air conditioner is provided with the heat exchange core plate according to any one of claims 1-7 or the total heat exchange module according to any one of claims 8-10 or the total heat exchange ventilation device according to any one of claims 11-12.

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