Fin integrated two-device assembly, dehumidifier two-device assembly thereof and dehumidifier

Abstract

The invention belongs to the technical field of new energy, and discloses a fin integrated two-device assembly, a dehumidifier two-device assembly of the fin integrated two-device assembly and a dehumidifier. The fin integrated condenser and evaporator assembly comprises a condenser and an evaporator; the condenser comprises a condensation section and a supercooling section; the condensation section, the supercooling section and the evaporator are all flat plate type finned tube heat exchangers; the supercooling section and the condensation section are adjacently arranged, and the supercooling section is arranged between the condensation section and the evaporator; the condenser and the evaporator are arranged on the same fin group; and the fin ribs are used for cutting off gaps of a fin heat bridge and fixing the relative space structure relation of all areas of the fin. The condensing pressure of the dehumidifier is reduced and the power consumption of the compressor is reduced by increasing the area and ventilation quantity of the heat exchanger of the condenser, the condensate in the tail end of the condenser is further cooled through low-temperature air outlet of the evaporator, deep undercooling of the condensate is achieved, the two-phase flow dryness of a refrigerant at an inlet of the evaporator is reduced, and the refrigerating capacity and dehumidification capacity of the evaporator are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy, and in particular relates to a fin-integrated two-device assembly and a dehumidifier two-device assembly and a dehumidifier. Background Art

[0002] An ordinary dehumidifier is a single-cooling air conditioner with an evaporator and a condenser (two devices) sharing the same air path. The air sucked into the gaps between the fins is cooled to below the dew point temperature by absorbing heat through the evaporator, and moisture is condensed and separated out to achieve "dehumidification". As the simplest refrigeration product, dehumidifiers are characterized by a wide variety and high output. Dehumidifiers, together with refrigeration products such as air conditioners and refrigerators, have become an important fulcrum of the modern manufacturing industry.

[0003] The prior art discloses an industrial-grade high-efficiency dehumidifier, which includes a body, a compressor, a heat exchanger, and a fan. A dehumidification chamber is arranged in the body. The heat exchanger includes an evaporator, a main condenser, and an auxiliary condenser. The evaporator and the main condenser are both L-shaped structures. The evaporator is placed between the main condenser and the inner wall of the dehumidification chamber. Main air inlets are arranged on the adjacent two side walls of the dehumidification chamber. The main air inlet is arranged opposite to the evaporator. An auxiliary air inlet is arranged on the inner wall of the dehumidification chamber opposite to a main air inlet. The auxiliary condenser is installed in the dehumidification chamber at a position corresponding to the auxiliary air inlet. An exhaust port is arranged on the body. The air outlet on the fan is connected to the exhaust port. The air inlet of the fan is connected to the dehumidification chamber. The compressor, the auxiliary condenser, the main condenser and the evaporator are connected in sequence through pipelines to form a series circulation channel for the refrigerant.

[0004] The current dehumidifier technology has not fully explored the role of low ambient temperature (27°C) in reducing the condensing pressure of the condenser under the standard operating conditions of the dehumidifier. In particular, it has not yet realized the important role of the low-temperature outlet air of the evaporator (about 14°C) as an important cold source in reducing the condensate temperature at the end of the condenser, increasing the subcooling degree of the condensate, reducing the vaporization ratio of the refrigerant in the throttle valve, increasing the liquid phase ratio of the refrigerant at the evaporator inlet, and increasing the cooling and dehumidification capacity. The dehumidification energy efficiency ratio of the dehumidifier has long remained at around 2.0L / kwh.

[0005] At the same time, the current dehumidifier technology continues the traditional single air duct structure, and does not focus on optimizing the spatial relationship between the compressor, the two devices, and the throttle valve, especially the spatial structural relationship between the two devices and the inlet and outlet air ducts. There are many redundant structures and low energy density. The energy density has long remained at 1L H under standard conditions. 2 The O / h dehumidification capacity occupies about 80L of the host volume.

[0006] The current dehumidifier technology treats the condenser (even condenser 1, condenser 2, condenser 3) and evaporator as independent components, which are designed, molded, produced, packaged and transported separately, and then assembled on the assembly line, resulting in many production links, complex production processes and high manufacturing costs.

[0007] How to improve the dehumidification energy efficiency ratio and dehumidification load intensity of the dehumidifier, how to innovate the two devices and the spatial relationship between the two devices? Under the conditions of improving the dehumidification energy efficiency ratio and dehumidification load intensity of the dehumidifier, how to implement the combined design, combined mold manufacturing, combined production, unified packaging and transportation for the dehumidifier condenser (condenser 1, condenser 2, condenser 3) evaporator, and then send it to the dehumidifier assembly line for general assembly to reduce production links, simplify production processes, and reduce manufacturing costs, is also a major technical and economic issue. Summary of the invention

[0008] In order to solve the above-mentioned problems of the prior art, the present invention provides a fin-integrated two-device assembly, which innovates the spatial relationship between the condenser and the evaporator, and the condenser and the evaporator, including innovatively setting the air ducts of the condenser and the evaporator, configuring different air volumes for the two devices in the same air duct, cutting off the fin thermal bridge, especially cutting off the fin thermal bridge between the refrigerant superheating heat release section, the condensation heat release section, and the supercooling heat release section in the condenser;

[0009] Another object of the present invention is to provide a dehumidifier two-device assembly with a fin-integrated two-device assembly;

[0010] Another object of the present invention is to provide a dehumidifier having a dehumidifier two-device assembly.

[0011] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0012] A fin-integrated two-device assembly, the fin-integrated two-device assembly comprising a condenser and an evaporator, the condenser comprising a condensing section and a subcooling section; the condensing section, the subcooling section and the evaporator are all flat-plate fin-tube heat exchangers;

[0013] The evaporator, the subcooling section and the condensing section are arranged adjacent to each other, and the subcooling section is arranged between the condensing section and the evaporator;

[0014] The condenser and evaporator are arranged on the same set of fins; on the fins, longitudinal and / or transverse gaps for cutting off the fin thermal bridges and fin ribs for fixing the relative spatial structural relationship of each fin area are provided between the adjacent condensing section, supercooling section and evaporator.

[0015] Furthermore, the condenser also includes a superheat release section; the superheat release section is located above the evaporator, supercooling section and / or condensing section arranged side by side; on the fin, a gap for cutting off the fin thermal bridge and fin ribs for fixing the relative spatial structural relationship of each area of ​​the fin are provided between the superheat release section and the adjacent condensing section, supercooling section and / or evaporator.

[0016] Furthermore, the gaps used to cut off the fin thermal bridges are multiple offset punched gaps, which are used to cut off the fin thermal bridges between the refrigerant pipelines of the subcooling section, condensing section and / or superheating heat release section of the evaporator and condenser on the same group of fins.

[0017] Furthermore, the refrigerant pipelines of the superheated heat release section, the condensing section, the subcooling section and the evaporator are connected in series in sequence, and the output end of the subcooling section of the condenser is connected to the input end of the evaporator through a throttling device; preferably, the refrigerant pipeline of the evaporator includes at least two parallel refrigerant sub-pipelines, and the refrigerant pipeline output port of the subcooling section is respectively connected to the input ports of several of the refrigerant sub-pipelines through the throttling device.

[0018] Furthermore, the fin-integrated two-device assembly is provided with 2 sets of condensers and 2 sets of evaporators, which belong to two independent refrigeration and dehumidification systems respectively; the 2 sets of condensers and the 2 sets of evaporators are arranged on the same set of fin groups; on the fins, fin thermal bridges are provided between the heat exchange tube groups in the superheating and heat release sections belonging to each refrigeration and dehumidification system and arranged adjacently, so as to form a superheating and heat release section combination; fin thermal bridges are provided between the heat exchange tube groups in the condensing sections belonging to each refrigeration and dehumidification system and arranged adjacently, so as to form a condensing section combination; fin thermal bridges are provided between the heat exchange tube groups in the subcooling sections belonging to each refrigeration and dehumidification system and arranged adjacently, so as to form a subcooling section combination; fin thermal bridges are provided between the heat exchange tube groups in the evaporators belonging to each refrigeration and dehumidification system and arranged adjacently, so as to form an evaporator combination;

[0019] On the fins, longitudinal and / or transverse gaps for cutting off the fin thermal bridges, and longitudinal and / or transverse fin ribs for fixing the relative spatial structural relationship of various areas of the fins are provided between the superheating and heat release sections, the condensing section, the subcooling section and the evaporator in the two-device combination module.

[0020] Furthermore, the superheated heat release section, condensing section, subcooling section and evaporator are respectively composed of a plurality of refrigerant pipeline branches connected in parallel; the heat exchange tube groups of each refrigerant pipeline branch are arranged alternately and side by side on the left and right.

[0021] A dehumidifier two-device assembly, the dehumidifier two-device assembly is composed of one fin-integrated two-device assembly; or a horizontal cross-section V-shaped two-device assembly composed of at least two fin-integrated two-device assemblies; or is composed of the fin-integrated two-device assembly and the horizontal cross-section V-shaped two-device assembly; or is composed of one or both of the fin-integrated two-device assembly and the horizontal cross-section V-shaped two-device assembly and a plurality of partitions; the long side of the fin of the fin-integrated two-device assembly is arranged in the vertical direction or close to the vertical direction in the horizontal air duct; the horizontal cross-section of the dehumidifier two-device assembly perpendicular to the long side of the fin is in a serrated broken line shape.

[0022] Furthermore, the horizontal cross-section of the two-device assembly of the dehumidifier perpendicular to the long side of the fin is V-shaped, N-shaped, or is composed of at least two V-shaped two-device assemblies with horizontal cross-sections perpendicular to the long side of the fin arranged in a row; preferably, the horizontal cross-section of the two-device assembly of the dehumidifier perpendicular to the long side of the fin is W-shaped; preferably, the top angle α of the horizontal cross-section V-shaped two-device assembly is 15°~110°.

[0023] Preferably, the top angle α of the horizontal cross-section V-shaped two-device assembly is 30° to 90°.

[0024] Preferably, the top angle α of the horizontal cross-section V-shaped two-device assembly is 30° to 60°.

[0025] Furthermore, one side of the horizontal cross section of the two-device assembly of the dehumidifier perpendicular to the long side of the fin is the air inlet surface of the heat exchanger, and the other side is the air outlet surface of the heat exchanger;

[0026] The incident surface of the inlet airflow is a flat plate fin-tube heat exchanger with two fins integrated into one assembly, and the intersection angle between the inlet airflow and the tip of each fin on each flat plate fin-tube heat exchanger is an obtuse angle; the obtuse angle β is 97.5° to 145°;

[0027] The incoming air flow hits the tip of each fin in the flat-plate fin-tube heat exchanger at an obtuse angle β, is reflected by the fin tip plate, enters the fin gap and flows toward the negative pressure cavity of the heat exchanger assembly.

[0028] Furthermore, the air flow rate entering each fin gap d is equal to the inlet air flow intercepted by the vertical distance δ between the front and rear fin tips of the flat plate fin-tube heat exchanger on the inlet cross section;

[0029] δ = d·sinα / 2, where α is the vertex angle of the horizontal cross-section V-shaped two-device assembly;

[0030] The vertical distance δ between the front and rear fin tips of the flat-plate fin-tube heat exchanger on the air inlet section is between 0.13d and 0.7d; preferably, the air flow velocity in the fin gap is 1 / 3 of the air inlet velocity, corresponding to the top angle α of the horizontal section V-shaped two-device assembly is 39° and the incident obtuse angle β is 109.5°.

[0031] A dehumidifier with a dehumidifier assembly, comprising a housing, the dehumidifier assembly, a compressor, and an exhaust cavity; the negative pressure cavity is composed of the dehumidifier assembly, a part of the housing, and a back plate; the back plate is provided with a plurality of air outlets of the negative pressure cavity, and the air outlets are provided with a vertically arranged fan;

[0032] The two-device assembly of the dehumidifier is arranged on the air inlet surface of the shell, and the two-device assembly of the dehumidifier serves as the air inlet of the negative pressure chamber;

[0033] The air outlet on the back plate corresponds to the air intake port of the vertically arranged fan; the air outlet is connected to the exhaust cavity; the exhaust port of the exhaust cavity is located on the side plate, top plate or back plate of the shell.

[0034] The refrigerant circuit of the dehumidifier includes a compressor, a throttle valve and a dehumidifier assembly.

[0035] Furthermore, the back plate is provided with at least two air outlets; a fan is provided at each air outlet to form a fan wall; preferably, the fan is a centrifugal fan or an axial flow fan; further preferably, the centrifugal fan is a backward-inclined outer rotor centrifugal fan.

[0036] Preferably, the back plate is provided with 2, 4 or 6 air outlets; each air outlet is provided with a fan to form a fan wall.

[0037] Furthermore, the exhaust cavity is composed of a side plate of the shell, a bottom plate, a back plate of the negative pressure cavity, and an exhaust cavity back plate; preferably, the exhaust port of the exhaust cavity is a rectangular exhaust port.

[0038] Furthermore, the exhaust surface enclosed by the exhaust port is arranged on the top plate of the shell or the back plate of the exhaust cavity, and the air inlet surface is arranged on the front surface of the shell and / or on the long side surface adjacent to the front surface.

[0039] Furthermore, a compressor chamber including a compressor and an electrical box is provided on the outer side of the exhaust chamber back plate, or on the outer side of the negative pressure chamber, or below the exhaust chamber and / or the negative pressure chamber.

[0040] Furthermore, a water tank for collecting condensed water is arranged below the exhaust chamber and / or the negative pressure chamber.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] ①Simplify the production process and manufacturing cost of the two-device assembly of the dehumidifier

[0043] This embodiment innovates the structure of the two-device assembly, and all refrigerant pipelines of the two devices, including the refrigerant pipelines of the evaporator, condenser 1, condenser 2, and condenser 3, are passed through the same set of fins, and the fin thermal bridges are cut off from each other through the "punching" of the mold. The relative spatial structural relationship of each fin area is fixed by the "fin ribs" retained by the "punching" operation, and the structure of the two devices is more compact.

[0044] In this embodiment, the fins of the two heat exchangers of the dehumidifier evaporator and condenser are stamped at one time on a set of molds, all pipelines of the two heat exchangers are threaded, expanded, and welded with elbows on the same set of fins at one time, the two heat exchangers are pressure tested and leak-checked at one time, and the two heat exchangers are packaged and transported at one time, the production process is greatly simplified, and the manufacturing cost is reduced.

[0045] ② Improve the dehumidification efficiency of dehumidifiers

[0046] In this embodiment, condenser 1 is additionally arranged above the fin area where condenser 2, condenser 3 and evaporator refrigerant pipelines are arranged in parallel, so as to increase the cross-sectional area of ​​the condenser air duct, and implement the condenser air volume greater than the evaporator air volume to achieve deep dehumidification with small air volume of the evaporator and reduce the condensation pressure with large air volume of the condenser; the fin thermal bridge of the evaporator condenser and its various sections is cut off by "punching" the mold, thereby blocking the heat conduction of the evaporator condenser and its various sections through the fin thermal bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a schematic diagram of the fin plate layout of Example 1, in which the fin thermal bridge is cut off by punching and the spatial relationship between the evaporator and the condenser is fixed by fin ribs;

[0048] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0049] Figure 3 This is a plan view of the end plate of the two-device assembly in Example 1, in which the fin thermal bridge is cut off by punching and the relative spatial relationship between the evaporator and the condenser is fixed by fin ribs;

[0050] Figure 4 A three-dimensional view of the evaporator condenser assembly of Example 1, in which the fin thermal bridge is cut off by punching and the relative spatial relationship of each fin area of ​​the evaporator condenser is fixed by fin ribs;

[0051] Figure 5 For example 1, the pressure-enthalpy diagram refrigerant cycle analysis is performed by increasing the subcooling degree of the refrigerant liquid at the end of the condenser to reduce the vaporization ratio of the refrigerant liquid in the throttle valve, thereby increasing the evaporation ratio of the refrigerant liquid in the evaporator and increasing the refrigeration capacity and dehumidification capacity;

[0052] Figure 6The structural diagram of the two-device assembly of the zigzag-shaped dehumidifier of Example 2 is to improve the subcooling degree of the refrigerant liquid at the end of the dehumidifier condenser to reduce the vaporization ratio of the refrigerant liquid in the throttle valve, increase the cooling capacity of the evaporator, and improve the dehumidification energy efficiency;

[0053] Figure 7 This is a horizontal cross-sectional view of the "fin planer" at the inlet of the fin gap when the dehumidifier of Example 2 is running, and the incoming air flow is planed step by step to slow it down and pass through the fin gap;

[0054] Figure 8 This is a schematic diagram of the fin plate layout of Example 3, in which the fin thermal bridge is cut off by multiple offset punching slits and the spatial relationship between the evaporator and the condenser is fixed by fin ribs;

[0055] Fig. 9 for Figure 8 A partial enlarged view of point B in the middle;

[0056] Fig.10 This is a structural diagram of the end plate of the two-device assembly of a single-duct dehumidifier composite system in Example 4, in which the condenser and the evaporator of the two-device assembly of two sets of dehumidifiers arranged adjacent to each other are respectively connected by longitudinal and transverse thermal bridges of the fins;

[0057] Fig.11 This is a schematic diagram of the end face of a conventional dehumidifier evaporator condenser assembly in which the fin thermal bridge is cut off by punching and the relative spatial relationship between the evaporator and the condenser is fixed by fin ribs, and the two devices have equal heights;

[0058] Fig.12 A three-dimensional view of the ultra-high energy efficiency dehumidifier of Example 6;

[0059] Fig.13 This is a top view of the structure of the ultra-high energy efficiency dehumidifier of Example 6;

[0060] Fig.14 This is a top view of the airflow during operation of the two-device assembly of the ultra-high energy-efficiency dehumidifier in Example 6. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the described embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0062] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and other similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0063] In the description of the present invention, it is necessary to understand that the terms "horizontal", "longitudinal", "length", "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0064] Definition: The direction perpendicular to the outer facade of the external corridor type equipment platform is set as the longitudinal direction, and the direction parallel to the outer facade of the external corridor type equipment platform is set as the transverse direction.

[0065] Example 1

[0066] like Figure 1-5 As shown, a fin-integrated two-device assembly includes a condenser 24 and an evaporator 28. The condenser 24 includes a condensing section 26 and a subcooling section 27. The condensing section 26, the subcooling section 27 and the evaporator 28 are all flat-plate fin-tube heat exchangers.

[0067] The evaporator 28, the subcooling section 27 and the condensing section 26 are arranged adjacent to each other, and the subcooling section 27 is arranged between the condensing section 26 and the evaporator 28;

[0068] The condenser 24 and the evaporator 28 are arranged on the same set of fin groups; on the fin 23, longitudinal and transverse gaps 221 for cutting off the fin thermal bridges and fin ribs for fixing the relative spatial structural relationship of each area of ​​the fin are provided between the adjacent condensing section 26, the subcooling section 27 and the evaporator 28.

[0069] The condenser 24 also includes an overheating heat release section 25; the overheating heat release section 25 is located above the evaporator 28, the supercooling section 27 and the condensing section 26 arranged side by side; on the fin 23, a gap 221 for cutting off the fin thermal bridge and a fin rib for fixing the relative spatial structural relationship of each area of ​​the fin are provided between the overheating heat release section 25 and the adjacent condensing section 26, the supercooling section 27 and the evaporator 28.

[0070] The refrigerant pipelines of the superheating heat release section 25, the condensing section 26, the subcooling section 27 and the evaporator 28 are connected in series in sequence, and the output end of the subcooling section 27 of the condenser 24 is connected to the input end of the evaporator 28 through a throttling device;

[0071] The refrigerant pipeline of the evaporator 28 includes four parallel refrigerant sub-pipelines, and the refrigerant pipeline outlet of the supercooling section 27 is connected to the input ports of the four refrigerant sub-pipelines respectively through a throttling device.

[0072] The superheating heat release section 25, the condensing section 26, the subcooling section 27 and the evaporator 28 are respectively composed of a plurality of refrigerant pipeline branches connected in parallel.

[0073] The refrigerant pipeline of the superheating and heat releasing section 25 includes two parallel refrigerant sub-pipelines, and the refrigerant sub-pipelines are arranged up and down.

[0074] The refrigerant sub-pipes of the superheating and heat releasing section 25 are respectively connected in series to the refrigerant sub-pipes of the condensing section 26. The two refrigerant sub-pipes of the condensing section 26 are arranged side by side, and the two refrigerant sub-pipes are arranged crosswise, and the left and right positions are swapped;

[0075] The refrigerant sub-pipes arranged side by side in the evaporator 28 are cross-arranged and switched left and right.

[0076] The evaporator 28 and the condenser 24 include fins 23 and heat exchange tubes 29; a plurality of fins 23 parallel to each other and spaced apart form a fin group; the heat exchange tubes 29 are arranged in a direction perpendicular to the plane where the fins 23 are located;

[0077] Along the short side direction of the fin 23, a plurality of heat exchange tube groups 291 penetrating the fin 23 are arranged in parallel;

[0078] The heat exchange tubes 29 in the heat exchange tube group 291 are arranged along the long side direction of the fins 23;

[0079] The heat exchange tube 29 and the heat exchange tube group 291 are equivalent to the refrigerant pipeline or the refrigerant sub-pipeline.

[0080] The fin-integrated two-device assembly of this embodiment focuses on the integrated design, manufacturing, packaging and transportation of the two devices (evaporator and condenser) of the dehumidifier, and is committed to optimizing the dehumidifier structure, reducing production costs and improving product yield.

[0081] (I) Innovate the structure of the two-device assembly of the dehumidifier and optimize the production process

[0082] The fin-integrated two-device assembly of this embodiment is composed of a fin-tube evaporator and a fin-tube condenser; the condenser 24 is composed of a superheated heat release section 25, a condensing section 26, and a subcooling section 27. The superheated heat release section 25, the condensing section 26, and the subcooling section 27 are responsible for the superheated heat release of the high-temperature superheated refrigerant gas discharged from the compressor, the condensation heat release, and the subcooling heat release of the condensate.

[0083] The present embodiment innovates the structure of the two-device assembly, and the refrigerant pipelines of the evaporator 28, the superheating and heat release section 25, the condensing section 26, and the subcooling section 27 are passed through the same group of fins: the refrigerant pipeline of the superheating and heat release section is passed through the top area of ​​the fin, and the refrigerant pipelines of the condensing section, the subcooling section, and the evaporator are passed through in parallel in the fin area below the superheating and heat release section; the three fin areas through which the refrigerant pipelines of the condensing section, the subcooling section, and the evaporator are arranged are adjacent to each other, arranged in parallel, and arranged in sequence in the opposite direction of the dehumidification air flow; the fin areas through which the refrigerant pipelines of the condensing section, the subcooling section, and the evaporator are passed, and the fin areas through which the refrigerant pipelines of the superheating and heat release section of the condenser above are passed, the fin thermal bridges are cut off by the "punching" of the mold, and the relative spatial structural relationship of each fin area is fixed by the "fin ribs" retained by the "punching" operation.

[0084] (II) Significantly improve the thermal performance of dehumidifiers

[0085] In the fin-integrated two-device assembly of this embodiment, the refrigerant pipelines of the superheating and heat-releasing section, the condensing section, the subcooling section, and the evaporator are arranged in parallel through the same group of fins, and the fin areas of the evaporator, the condenser and their respective sections are fixed with the relative spatial structural relationship of each fin area by the "fin ribs" retained by the "punching" operation; however, the fin thermal bridge of the evaporator, the condenser and their respective sections is cut off by the "punching" of the mold, thereby blocking the heat conduction of the evaporator, the condenser and their respective sections through the fin thermal bridge.

[0086] The fin-integrated two-device assembly of this embodiment has an evaporator air duct and a condenser air duct combined into one, and shares a fan or fan module; an overheating heat release section is added above the fin area where the condensing section, the subcooling section, and the refrigerant pipeline of the evaporator are arranged in parallel, so as to increase the flow cross-sectional area of ​​the condenser air duct, and implement a condenser air volume greater than the evaporator air volume to achieve deep dehumidification with a small air volume of the evaporator and reduce the condensation pressure with a large air volume of the condenser;

[0087] The fin-integrated two-device assembly and dehumidifier of this embodiment arrange the three fin areas where the three groups of refrigerant pipelines of the evaporator, condensing section and subcooling section pass through adjacent to each other, in parallel, and in sequence along the dehumidification air flow direction. Under the condition of cutting off the thermal bridges of the fins of the four groups of refrigerant pipelines of the evaporator, superheating and heat release section, the function of the low-temperature air outlet of the evaporator to further cool and release heat for the condensate in the end of the condenser (subcooling section) is fully exploited, thereby achieving deep subcooling of the condensate.

[0088] Because the dehumidification capacity of the dehumidifier depends on the cooling capacity of the dehumidifier evaporator, and the cooling capacity of the evaporator is the product of the refrigerant circulation volume and the enthalpy difference of the refrigerant at the inlet and outlet of the evaporator. The enthalpy difference of the refrigerant at the inlet and outlet of the evaporator is negatively correlated with the "dryness" of the refrigerant entering the evaporator inlet from the throttle valve outlet.

[0089] The dryness of the refrigerant at the evaporator inlet is the proportion of gaseous refrigerant in the gas-liquid two-phase flow of the refrigerant at the throttle valve outlet. The lower the dryness, that is, the closer the dryness is to 0, that is, the gas proportion is low (close to 0) and the liquid proportion is high (close to 1.0), the "completeness" of the evaporation of the refrigerant in the evaporator is high, the enthalpy difference of the refrigerant at the evaporator inlet and outlet is large, the evaporator cooling capacity is large, and the dehumidification capacity is large; conversely, the higher the dryness of the refrigerant at the evaporator inlet, that is, the closer the dryness is to 1, that is, the gas proportion is high (close to 1) and the liquid proportion is low (close to 0), the "completeness" of the evaporation of the refrigerant in the evaporator is low, the enthalpy difference of the refrigerant at the evaporator inlet and outlet is small, the cooling capacity is small, and the dehumidification capacity is small.

[0090] The "dryness" of the refrigerant at the throttle valve outlet, i.e., the evaporator inlet, is determined by the "subcooling" of the refrigerant liquid at the end of the condenser: during the throttling and pressure reduction process of the refrigerant in the throttle valve, in order to reduce the temperature of the high-pressure and high-temperature refrigerant condensate at the condenser outlet, i.e., the throttle valve inlet, to the saturation temperature corresponding to the low-pressure state at the throttle valve outlet, i.e., the evaporator inlet, a part of the refrigerant condensate is gradually vaporized during the throttling process of the throttle valve 222, and most of the condensate is cooled by absorbing heat through the vaporization of a small part of the condensate, resulting in the refrigerant injected from the throttle valve outlet into the evaporator inlet not being a liquid refrigerant with a dryness of 0 but a gas-liquid two-phase flow with a dryness of x, and the dryness x can be 0.2 (liquid accounts for 0.8), 0.3 (liquid accounts for 0.7), or 0.4 (liquid accounts for 0.6) or even 0.5 (liquid accounts for 0.5).

[0091] The refrigerant dryness x at the outlet of the dehumidifier throttle valve and the inlet of the evaporator is determined by the "subcooling" of the condensate at the end of the condenser: the condensate at the end of the condenser releases heat fully and the temperature drops significantly (significantly lower than the condensation temperature), that is, the condensate has a high "subcooling" and enters the evaporator through the throttle valve. The temperature difference of the condensate from the end temperature of the condenser to the evaporation temperature is small, and the heat release is small. Therefore, the proportion of refrigerant that undergoes "phase change" vaporization and heat absorption in the throttle valve is relatively low. The refrigerant dryness x at the outlet of the throttle valve, that is, the inlet of the evaporator, is relatively low. When x is as low as 0.2 or even below 0.2, the proportion of liquid phase in the two-phase flow of the refrigerant entering the evaporator is relatively large. The cooling capacity and dehumidification capacity of the evaporator are relatively large; on the contrary, the condensate at the end of the condenser does not release heat sufficiently and the temperature is relatively high (there is no significant drop in temperature relative to the condensation temperature), that is, the "subcooling" of the condensate is low. The condensate entering the evaporator through the throttle valve has a large temperature difference from the temperature at the end of the condenser to the evaporation temperature, and releases a large amount of heat. As a result, the proportion of condensate that undergoes "phase change" vaporization and heat absorption when passing through the throttle valve is relatively high, and the refrigerant dryness x at the throttle valve outlet, i.e., the evaporator inlet, is relatively high, reaching 0.3 or even above 0.4. The proportion of liquid phase in the two-phase flow of the refrigerant entering the evaporator is relatively low, and the cooling capacity and dehumidification capacity of the evaporator are relatively small.

[0092] The fin-integrated two-device assembly of this embodiment adheres to the core concept of "reducing the dryness of the two-phase flow of the refrigerant at the throttle valve outlet", fully explores the cooling and supercooling effect of the low-temperature air outlet of the evaporator on the condensate at the end of the condenser, improves the supercooling of the condensate at the end of the condenser, reduces the vaporization ratio of the condensate in the throttle valve, reduces the dryness of the two-phase flow of the refrigerant at the throttle valve outlet, increases the liquid phase ratio of the refrigerant at the evaporator inlet, and improves the cooling capacity and dehumidification capacity of the evaporator.

[0093] When the fin-integrated two-device assembly of this embodiment is in operation, heat exchange is performed between the refrigerant in the evaporator-condenser pipeline and the air flow in the fin gap outside the pipeline, thereby realizing energy coupling.

[0094] In this embodiment, on the refrigerant side, the refrigerant circulation is driven by a compressor, and the heat is transferred by the high-efficiency phase change of the refrigerant during the circulation process to couple the above-mentioned evaporator heat absorption and condenser heat release.

[0095] The present embodiment is provided with a compressor chamber, in which refrigeration circuit components such as a compressor, an expansion valve, and a gas-liquid separator and circuit components such as a power cable signal line electrical box are placed; these refrigeration circuit components and components such as the two devices and the refrigerant connecting pipe form a dehumidifier refrigeration cycle circuit in the order of compressor-condenser-expansion valve-evaporator-compressor; the compressor, as the power of the refrigeration cycle circuit, respectively establishes high and low pressure states of the refrigerant in the condenser and evaporator pipelines, drives the refrigerant to circulate and repeatedly change phases in the refrigeration cycle circuit to achieve "heat transfer", that is, the refrigerant liquid evaporates and absorbs heat in the pipeline of the evaporator, and then absorbs the heat of the ambient air flowing in the fin gap through the huge fin heat absorption area connected by the copper tube to "cool and dehumidify", and then the high-temperature and high-pressure refrigerant gas discharged by the compressor condenses and releases heat in the condenser pipeline, and then releases heat to the ambient air flowing between the fins through the huge fin heat release area connected by the copper tube, thereby realizing the transfer of heat from the cooling and dehumidification target air of the dehumidifier evaporator to the "reheated" air after dehumidification of the condenser.

[0096] Example 2

[0097] like Figure 6-7 As shown, a dehumidifier two-device assembly, the dehumidifier two-device assembly 2 is a horizontal cross-section V-shaped two-device assembly 22 composed of two fin-integrated two-device assemblies 21; the long sides of the fins 23 of the fin-integrated two-device assembly 21 are arranged in the vertical direction or close to the vertical direction in the horizontal air duct; the horizontal cross-section of the dehumidifier two-device assembly 2 perpendicular to the long side of the fin is a serrated broken line shape.

[0098] The fin-integrated two-device assembly 21 includes a condenser 24 and an evaporator 28. The condenser 24 includes a superheating heat release section 25, a condensing section 26 and a subcooling section 27. The superheating heat release section 25, the condensing section 26, the subcooling section 27 and the evaporator 28 are all flat-plate fin-tube heat exchangers.

[0099] The horizontal cross section of the dehumidifier assembly 2 perpendicular to the long side of the fin 23 is V-shaped;

[0100] The vertex angle α of the horizontal cross-section V-shaped two-device assembly 22 is 15° to 110°.

[0101] The top angle α of the horizontal cross-section V-shaped two-device assembly 22 is 30° to 90°.

[0102] As a preferred embodiment, the top angle α of the horizontal cross-section V-shaped two-device assembly 22 is 30° to 60°.

[0103] One side of the horizontal cross section of the dehumidifier assembly 2 perpendicular to the long side of the fin 23 is the heat exchanger air inlet surface (i.e. the dehumidifier assembly air inlet surface), and the other side is the heat exchanger air outlet surface (i.e. the dehumidifier assembly air outlet surface);

[0104] The incident surface of the inlet airflow is a flat plate fin-tube heat exchanger with two fins integrated into one assembly, and the intersection angle between the inlet airflow and the tip of each fin on each flat plate fin-tube heat exchanger is an obtuse angle; the obtuse angle β is 97.5° to 145°;

[0105] The incoming air flow hits the tip of each fin in the flat-plate fin-tube heat exchanger at an obtuse angle β, is reflected by the fin tip plate, enters the fin gap and flows toward the negative pressure cavity of the heat exchanger assembly.

[0106] The air flow rate entering each fin gap d is equal to the inlet air flow intercepted by the vertical distance δ between the front and rear fin tips of the flat plate fin-tube heat exchanger on the inlet section;

[0107] δ = d·sinα / 2, where α is the vertex angle of the horizontal cross-section V-shaped two-device assembly 22;

[0108] The vertical distance δ between the front and rear fin tips of the flat-plate fin-tube heat exchanger on the air inlet section is between 0.13d and 0.7d; the air flow velocity in the fin gap is 1 / 3 of the air inlet velocity, corresponding to the vertex angle α of the horizontal section V-shaped two-device assembly is 39° and the incident obtuse angle β is 109.5°.

[0109] The dehumidifier assembly of this embodiment uses a high-efficiency dehumidifier evaporator condenser fin integrated two-device assembly, the essence of which is to use the low-temperature air outlet of the evaporator to achieve deep subcooling of the refrigerant liquid at the end of the condenser to reduce the dryness of the refrigerant two-phase flow at the throttle valve outlet.

[0110] The ultra-high load and ultra-high energy efficiency dehumidifier of this embodiment has an evaporator and a condenser arranged side by side, and the condenser is divided into three sections connected in series in sequence by fluorine paths, namely, high-temperature sensible heat release (i.e., superheat release section), latent heat release (i.e., condensation section) and supercooling heat release (i.e., supercooling section) corresponding to the high-temperature and high-pressure refrigerant gas discharged from the compressor, so as to explore the "cold" resource potential of the dehumidifier evaporator after "dehumidification" at low temperature, and direct the cold air outlet of the evaporator directly to the end of the condenser (i.e., the supercooling section) that bears the function of supercooling heat release of the condensate, and cut off the fin heat bridge between the end of the condenser that bears the function of supercooling heat release and the middle section of the condenser (i.e., the condensation section) that bears the function of condensation heat release, so as to block the conduction of heat from the high-temperature condensation section to the supercooling zone at the end of the condenser, greatly improve the supercooling degree of the refrigerant at the end of the condenser, thereby greatly reducing the refrigerant dryness at the throttle valve outlet, i.e., the evaporator inlet, greatly improving the evaporator cooling capacity and dehumidification capacity, and implementing deep supercooling and high-efficiency dehumidification.

[0111] This embodiment adopts the fin-integrated two-device assembly of the high-efficiency evaporator condenser to construct the two-device assembly 2 of the dehumidifier: the two fin-integrated two-device assemblies of the high-efficiency evaporator condenser are combined into a horizontal cross-section V-shaped two-device assembly 22, and the two horizontal cross-section V-shaped two-device assemblies 22 are combined again to form a high-efficiency evaporator condenser assembly; the horizontal cross-section of the two-device assembly 2 of the dehumidifier perpendicular to the long side of the fin is a zigzag broken line horizontal cross-section;

[0112] When the dehumidifier of this embodiment is in operation, the microscopic process of airflow entering and exiting the fin gap and flowing at a low speed in the fin gap is an important link for the two-device assembly of the dehumidifier to enter and exit the wind field.

[0113] At the airflow inlet section EE, the medium-speed airflow of about 4m / s pouring in from the outer facade of the equipment platform is pushed to the fin gap inlet section FF in the form of uniform laminar flow. At FF, the air intake airflow line forms an obtuse angle with the fin on the rear side of the gap. The fin on the rear side of the gap acts as a "planer" to "plan" a piece of airflow from the main air intake airflow and insert it into the fin gap; the main air intake airflow "planed" out by the tip of the "fin planer" at FF hits the tip of the "planer" of the fin on the rear side of the gap at an obtuse angle, is reflected by the fin on the front side of the gap, and then diffuses and decelerates in the fin gap; the airflow of about 1.5m / s planed out by the "fin planer" after collision, diffusion and deceleration overcomes the resistance of the fin gap channel under the pull of the negative pressure of the negative pressure chamber and flows out of the fin channel; the low-speed airflow arriving at the fin gap outlet section GG is accelerated again to a medium-speed airflow of about 4m / s under the pull of the negative pressure of the negative pressure chamber, and is collected and discharged at the HH section.

[0114] Example 3

[0115] like Figure 8-9 As shown,

[0116] In both this embodiment and embodiment 1, all refrigerant pipelines of the dehumidifier two-device assembly 2, including the refrigerant pipelines of the evaporator 28, the superheated heat release section 25, the condensing section 26, and the subcooling section 27, are passed through the same group of fins, and the fin thermal bridges are cut off by "punching" with a mold, and the relative spatial structural relationship of each fin area is fixed by the "fin ribs" retained by the "punching" operation.

[0117] The difference of this embodiment is that a plurality of offset punching seams are used to cut off the fin thermal bridges between the refrigerant pipelines of the evaporator 28, the superheating heat release section 25, the condensing section 26, and the subcooling section 27 that pass through the same group of fins.

[0118] Since the present embodiment uses a plurality of offset punching seams to cut off the fin thermal bridges between the refrigerant pipelines, the thermal bridge blocking effect is good and the strength of the fin structure is also improved.

[0119] The gaps 221 used to cut off the fin thermal bridges are multiple offset punched gaps, which are used to cut off the fin thermal bridges between the refrigerant pipelines of the evaporator 28, the subcooling section 27 of the condenser 24, the condensing section 26 and the superheating heat release section 25 on the same group of fins.

[0120] Example 4

[0121] like Fig.10 As shown, this embodiment is different from embodiment 1 in that:

[0122] The fin-integrated two-device assembly 21 is provided with two sets of condensers 24 and two sets of evaporators 28, which belong to two independent refrigeration and dehumidification systems respectively.

[0123] The two sets of condensers 24 and the two sets of evaporators 28 are arranged on the same set of fin groups.

[0124] On the fins, the fins between the heat exchange tube groups in the superheating heat release sections belonging to each refrigeration and dehumidification system and arranged adjacently are planar fins that are continuously extended without disconnected gaps, and are provided with fin thermal bridges to form a superheating heat release section combination; the fins between the heat exchange tube groups in the condensing sections belonging to each refrigeration and dehumidification system and arranged adjacently are planar fins that are continuously extended without disconnected gaps, and are provided with fin thermal bridges to form a condensing section combination; the fins between the heat exchange tube groups in the supercooling sections belonging to each refrigeration and dehumidification system and arranged adjacently are planar fins that are continuously extended without disconnected gaps, and are provided with fin thermal bridges to form a supercooling section combination; the fins between the heat exchange tube groups in the evaporators belonging to each refrigeration and dehumidification system and arranged adjacently are planar fins that are continuously extended without disconnected gaps, and are provided with fin thermal bridges to form an evaporator combination;

[0125] On the fins, between the superheating and heat release section 25, the condensing section 26, the subcooling section 27 and the evaporator 28 in the two-device combination module 21, there are longitudinal and / or transverse gaps 221 for cutting off the fin thermal bridges, and longitudinal and / or transverse fin ribs for fixing the relative spatial structural relationship of each area of ​​the fin.

[0126] Example 5

[0127] like Fig.11 As shown, in this embodiment and in the first embodiment, all refrigerant pipelines of the two dehumidifiers 2, including the refrigerant pipelines of the evaporator 28 and the condenser 24, are passed through the same set of fins 23, and the fin thermal bridges are cut off by the "punching" of the mold, and the relative spatial structural relationship of each fin area is fixed by the "fin ribs" retained by the "punching" operation;

[0128] The difference of this embodiment is that the dehumidifier two-device assembly 2 is a structure in which the evaporator 28 and the condenser 24 are of equal height, that is, the superheated heat release section 25 of the condenser 24 is not provided.

[0129] The present embodiment is applied to a conventional common energy-efficient dehumidifier, in which the superheated heat release section 25 of the condenser 24 of the first embodiment is not provided. The condenser 24 has the same air volume as the evaporator 28, and the condensation pressure is relatively high.

[0130] In this embodiment, the condenser 24 is disassembled into the condensation section 26 and the supercooling section 27. The supercooling section 27 is used for "deep supercooling" of the condensate, and the refrigerant pipelines of the evaporator 28 and the condenser 26 are passed through the same group of fins 23. The fin thermal bridges are cut off by the "punching" of the mold, and the relative spatial structural relationship of each fin area is fixed by the "fin ribs" retained by the "punching" operation. The dehumidification energy efficiency is greatly improved compared with the traditional dehumidifier. At the same time, because the superheated heat release section 25 higher than the evaporator in Example 1 is not provided, this embodiment has the characteristics of simple structure, convenience and practicality.

[0131] Example 6

[0132] like Figure 12-14 As shown, a dehumidifier comprises a housing 1, a two-device assembly 2 of the dehumidifier of the above-mentioned embodiment 2, a compressor 3, and an exhaust chamber 4; a negative pressure chamber 5 is composed of the two-device assembly 2 of the dehumidifier, a part of the housing 1 and a back plate 51; two air outlets 52 of the negative pressure chamber 5 are arranged on the back plate 51, and the air outlets 52 are provided with a vertically arranged fan 6;

[0133] The dehumidifier assembly 2 is arranged on the air inlet surface of the housing 1, and the dehumidifier assembly 2 is the air inlet of the negative pressure chamber 5;

[0134] The air outlet 52 on the back plate 51 corresponds to the air intake port of the vertically arranged fan 6; the air outlet 52 is connected to the exhaust cavity 4; the exhaust port 41 of the exhaust cavity 4 is located on the top plate 13 of the shell.

[0135] A fan 6 is provided at each air outlet 52 of the back plate 51 to form a fan wall; the fan 6 is a backward inclined outer rotor centrifugal fan.

[0136] The exhaust chamber 4 is composed of the side panels 12, top panel 13 and bottom panel (not shown) of the shell 1, the back panel 51 of the negative pressure chamber, and the exhaust chamber back panel; the exhaust port 41 of the exhaust chamber 4 is a rectangular exhaust port.

[0137] The air outlet surface enclosed by the air outlet 41 is arranged on the top plate 13 of the shell, and the air inlet surface 11 is arranged on the front surface of the shell.

[0138] The outer side of the negative pressure chamber 5 is provided for accommodating a compressor chamber 31 including a compressor 3 and an electrical box.

[0139] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A fin-integrated two-device assembly, It is characterized in that The fin-integrated two-device assembly includes a condenser and an evaporator, wherein the condenser includes a condensing section and a subcooling section; the condensing section, the subcooling section and the evaporator are all flat-plate fin-tube heat exchangers; The evaporator, the subcooling section and the condensing section are arranged adjacent to each other, and the subcooling section is arranged between the condensing section and the evaporator; The condenser and evaporator are arranged on the same set of fins; on the fins, longitudinal and / or transverse gaps for cutting off the fin thermal bridges and fin ribs for fixing the relative spatial structural relationship of each fin area are provided between the adjacent condensing section, supercooling section and evaporator.

2. According to claim 1, the fin-integrated two-device assembly, It is characterized in that The condenser also includes a superheat release section; the superheat release section is located above the evaporator, subcooling section and / or condensing section arranged side by side; on the fin, a gap for cutting off the fin thermal bridge and a fin rib for fixing the relative spatial structural relationship of each area of ​​the fin are provided between the superheat release section and the adjacent condensing section, subcooling section and / or evaporator.

3. According to claim 2, the fin integrated two-device assembly, It is characterized in that The gaps used to cut off the fin thermal bridges are multiple offset punched gaps, which are used to cut off the fin thermal bridges between the refrigerant pipelines of the evaporator, condenser subcooling section, condensing section and / or superheating heat release section on the same group of fins.

4. According to claim 2, the fin integrated two-device assembly, It is characterized in that The refrigerant pipelines of the superheated heat release section, the condensing section, the subcooling section and the evaporator are connected in series in sequence, and the output end of the subcooling section of the condenser is connected to the input end of the evaporator through a throttling device; preferably, the refrigerant pipeline of the evaporator includes at least two parallel refrigerant sub-pipelines, and the refrigerant pipeline output port of the subcooling section is respectively connected to the input ports of several of the refrigerant sub-pipelines through the throttling device.

5. According to claim 1, the fin integrated two-device assembly, It is characterized in that The fin-integrated two-device assembly is provided with two sets of condensers and two sets of evaporators, which belong to two independent refrigeration and dehumidification systems respectively; the two sets of condensers and the two sets of evaporators are arranged on the same set of fin groups; on the fins, fin thermal bridges are provided between the heat exchange tube groups in the superheating and heat release sections belonging to each refrigeration and dehumidification system and arranged adjacently, so as to form a superheating and heat release section combination; fin thermal bridges are provided between the heat exchange tube groups in the condensing sections belonging to each refrigeration and dehumidification system and arranged adjacently, so as to form a condensing section combination; fin thermal bridges are provided between the heat exchange tube groups in the subcooling sections belonging to each refrigeration and dehumidification system and arranged adjacently, so as to form a subcooling section combination; fin thermal bridges are provided between the heat exchange tube groups in the evaporators belonging to each refrigeration and dehumidification system and arranged adjacently, so as to form an evaporator combination; On the fins, longitudinal and / or transverse gaps for cutting off the fin thermal bridges, and longitudinal and / or transverse fin ribs for fixing the relative spatial structural relationship of various areas of the fins are provided between the superheating and heat release sections, the condensing section, the subcooling section and the evaporator in the two-device combination module.

6. The fin-integrated two-device assembly according to claim 1, It is characterized in that The superheating and heat release section, the condensing section, the subcooling section and the evaporator are respectively composed of a plurality of refrigerant pipeline branches connected in parallel; the heat exchange tube groups of each refrigerant pipeline branch are alternately arranged side by side on the left and right.

7. A dehumidifier assembly with two devices, It is characterized in that The dehumidifier two-device assembly is composed of one fin-integrated two-device assembly as described in any one of claims 1 to 6; or a horizontal cross-section V-shaped two-device assembly composed of at least two fin-integrated two-device assemblies; or a fin-integrated two-device assembly and the horizontal cross-section V-shaped two-device assembly; or one or both of the fin-integrated two-device assembly and the horizontal cross-section V-shaped two-device assembly, and a plurality of partitions; the long side of the fin of the fin-integrated two-device assembly is arranged in the vertical direction or close to the vertical direction in the horizontal air duct; the horizontal cross-section of the dehumidifier two-device assembly perpendicular to the long side of the fin is a serrated broken line.

8. According to the dehumidifier assembly of claim 7, It is characterized in that The horizontal cross-section of the two-device assembly of the dehumidifier perpendicular to the long side of the fin is V-shaped, N-shaped, or is composed of at least two V-shaped two-device assemblies with horizontal cross-sections perpendicular to the long side of the fin arranged in a row; preferably, the horizontal cross-section of the two-device assembly of the dehumidifier perpendicular to the long side of the fin is W-shaped; preferably, the top angle α of the horizontal cross-section V-shaped two-device assembly is 15°~110°.

9. According to claim 7, the dehumidifier assembly comprises: It is characterized in that One side of the horizontal cross section of the two-device assembly of the dehumidifier perpendicular to the long side of the fin is the air inlet surface of the heat exchanger, and the other side is the air outlet surface of the heat exchanger; The incident surface of the inlet airflow is a flat plate fin-tube heat exchanger with two fins integrated into one assembly, and the intersection angle between the inlet airflow and the tip of each fin on each flat plate fin-tube heat exchanger is an obtuse angle; the obtuse angle β is 97.5° to 145°; The incoming air flow hits the tip of each fin in the flat-plate fin-tube heat exchanger at an obtuse angle β, is reflected by the fin tip plate, enters the fin gap and flows toward the negative pressure cavity of the heat exchanger assembly.

10. The dehumidifier assembly according to claim 7, It is characterized in that The air flow rate entering each fin gap d is equal to the inlet air flow intercepted by the vertical distance δ between the front and rear fin tips of the flat plate fin-tube heat exchanger on the inlet section; δ = d·sinα / 2, where α is the vertex angle of the horizontal cross-section V-shaped two-device assembly; The vertical distance δ between the front and rear fin tips of the flat-plate fin-tube heat exchanger on the air inlet section is between 0.13d and 0.7d; preferably, the air flow velocity in the fin gap is 1 / 3 of the air inlet velocity, corresponding to the top angle α of the horizontal section V-shaped two-device assembly is 39° and the incident obtuse angle β is 109.5°.

11. A dehumidifier provided with the dehumidifier two-device assembly according to any one of claims 7 to 10, It is characterized in that The refrigerant circuit of the dehumidifier includes a compressor, a throttle valve and a dehumidifier assembly.

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