Bidirectional flow total heat fresh air dehumidifier

Abstract

The bidirectional flow total heat fresh air dehumidifier comprises a machine body, a total heat exchange core is arranged in a shell of the machine body, the total heat exchange core is matched with a partition plate and the shell to divide the interior of the machine body into a fresh air duct and a return air duct, and the longitudinal section of the total heat exchange core is rectangular; the air inlet surface of the total heat exchange core is completely exposed in the fresh air duct and the return air duct; a fixed part and a movable part which are used for fixing the total heat exchange core are arranged in the shell, and the fixed part and the movable part are respectively arranged at two diagonal positions of the total heat exchange core; when the movable part is detached from the machine body, the total heat exchange core can be pulled out of the shell in the width direction of the machine body. According to the bidirectional-flow total-heat fresh air dehumidifier, airflow dead angles are avoided, it is ensured that airflow can make uniform and sufficient contact with the whole heat exchange face, and therefore the heat exchange efficiency is improved, the size of the whole dehumidifier is more compact, and particularly the size in the thickness direction is obviously reduced; and convenient installation in places with limited space, such as suspended ceilings and the like is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dehumidifiers, in particular to a bidirectional flow total heat fresh air dehumidifier. BACKGROUND

[0002] With the increasing demand for indoor air quality and the demand for building energy saving, the bidirectional flow total heat fresh air dehumidifier, as an air handling equipment that can simultaneously introduce fresh air, exhaust contaminated air, recover energy and control humidity, has been widely used in residential buildings, office buildings, schools and other places. The bidirectional flow total heat fresh air dehumidifier usually includes a cabinet, a supply air fan, an exhaust air fan, a total heat exchange core and a dehumidifying assembly. Its working principle is that outdoor fresh air and indoor exhaust air flow through two channels of the total heat exchange core to exchange heat and humidity, and then the fresh air is sent into the room after being treated by the dehumidifying assembly, and the exhaust air is directly discharged to the outside. In this way, the bidirectional flow total heat fresh air dehumidifier can improve indoor air quality and reduce air conditioning energy consumption, achieving energy saving and environmental protection.

[0003] However, the existing ceiling type bidirectional flow total heat fresh air dehumidifier has some deficiencies in design. In order to accommodate the fresh air channel and the return air channel, they usually adopt an upper and lower layered structure, resulting in a larger cabinet thickness, occupying more ceiling space, which is not conducive to installation and overall aesthetics, and also limits its application in some places with higher installation space requirements. Under the trend of increasingly compact modern building space, especially for application scenarios with limited ceiling height, such a total heat exchange core with a larger height size undoubtedly increases the installation difficulty and space limitation, which is difficult to meet the market demand for small and thin fresh air dehumidifiers. CONTENT OF THE INVENTION

[0004] In order to solve the above problems, the present application provides a bidirectional flow total heat fresh air dehumidifier which realizes the improvement of heat exchange efficiency, the miniaturization of the whole machine and the convenient and efficient maintenance.

[0005] In order to achieve the above purpose, the bidirectional flow total heat fresh air dehumidifier designed by the present application includes a machine body, a total heat exchange core is arranged in the shell of the machine body, the inner part of the machine body is divided into a fresh air channel and a return air channel by the total heat exchange core cooperating with a partition plate and the shell, the longitudinal section of the total heat exchange core is rectangular, and the air inlet surface of the total heat exchange core is completely exposed in the fresh air channel and the return air channel; a fixing member and a movable member for fixing the total heat exchange core are arranged in the shell, and the fixing member and the movable member are respectively arranged at two diagonal positions of the total heat exchange core; when the movable member is detached from the machine body, the total heat exchange core is configured to be able to be pulled out of the shell along the width direction of the machine body.

[0006] Preferably, the fixing member and the movable member are both L-shaped angle irons.

[0007] Preferably, the movable member is detachably connected to the shell by a screw.

[0008] Preferably, the shell is provided with an access hole at one side in the width direction thereof, and an access plate is detachably installed at the access hole; when the access plate is removed, the movable member and the total heat exchange core are exposed to the access hole, and the total heat exchange core can be pulled out from the access hole in the width direction of the shell.

[0009] Preferably, the partition plate comprises a first sub-plate, the shell has a side plate opposite to the access plate, one side of the first sub-plate is fixed to the side plate, and the other side extends in the pulling-out direction of the total heat exchange core and is connected to the fixed member.

[0010] Preferably, two positioning members are further provided at other two diagonal positions of the total heat exchange core, the positioning members are fixed in the shell, and the positioning members have guide plates extending in the pulling-out direction of the total heat exchange core.

[0011] Preferably, the partition plate further comprises a second sub-plate and a third sub-plate extending in the length direction of the shell, and two positioning members are respectively fixed to opposite side ends of the second sub-plate and the third sub-plate.

[0012] Preferably, the second sub-plate and the third sub-plate are not coplanar.

[0013] Preferably, a three-in-one sensor is provided at the fresh air inlet of the fresh air duct for detecting PM2.5, temperature and humidity.

[0014] Preferably, the shell is provided with a fresh air inlet, an exhaust air outlet, a supply air outlet and a return air outlet, the fresh air inlet and the supply air outlet are communicated to form the fresh air duct, the return air outlet and the exhaust air outlet are communicated to form the return air duct, and the fresh air inlet, the exhaust air outlet, the supply air outlet and the return air outlet are respectively provided with a first air valve; the supply air outlet and the return air outlet are communicated by a circulating air duct, the partition plate is provided with a second air valve, and the circulating air duct is selectively opened or closed by controlling the opening and closing state of the second air valve.

[0015] The bidirectional flow total heat new air dehumidifier designed by the application benefits from the fact that the air inlet surface of the total heat exchange core with a rectangular longitudinal section is completely exposed to the new air and return air ducts, which not only avoids airflow dead angles and ensures that the airflow can uniformly and fully contact the entire heat exchange surface, thereby improving the heat exchange efficiency, but also realizes the compactness of the entire machine, especially the significant reduction in the size in the thickness direction, which is more conducive to convenient installation in places with limited space such as suspended ceilings; at the same time, by setting the detachable movable part, the total heat exchange core can be easily taken out for cleaning or replacement without the need for professional tools and complex operations when necessary, greatly reducing the difficulty and cost of maintenance, and effectively prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the bidirectional flow total heat new air dehumidifier provided by the application.

[0017] Figure 2 is a perspective exploded view of Figure 1 .

[0018] Figure 3 is an enlarged schematic view of A in Figure 2 .

[0019] Figure 4 is a planar structural schematic diagram of the bidirectional flow total heat new air dehumidifier provided by the application.

[0020] Among them: machine body 100, shell 10, new air duct 10A, return air duct 10B, circulating air duct 10C, access hole 11, access plate 12, new air inlet 13, air outlet 14, air outlet 15, return air outlet 16, second air valve 17, total heat exchange core 20, fixing part 30, movable part 40, first sub-plate 50, second sub-plate 51, third sub-plate 52, guide part 60, guide plate 61. DETAILED DESCRIPTION

[0021] The preferred embodiments of the application will be described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the application, and are not used to limit the application.

[0022] As Figures 1 to 4As shown, the bidirectional flow total heat new air dehumidifier described in the embodiment includes a machine body 100, a total heat exchange core 20 is arranged in the shell 10 of the machine body 100, and the total heat exchange core 20 cooperates with the partition plate and the shell 10 to divide the inside of the machine body 100 into a new air air duct 10A and a return air air duct 10B. In the embodiment, the basic principle of the cooperation of the machine body 100, the total heat exchange core 20 and the new air air duct 10A and the return air air duct 10B is not essentially different from the prior art, and therefore, the same will not be described in detail in the embodiment. The dehumidifying assembly in the shell 10 includes an evaporator, a condenser and a compressor, and the compressor is arranged in a horizontal manner.

[0023] Unlike the bidirectional flow total heat new air dehumidifier with a total heat exchange core of a hexagonal or other non-rectangular cross section in the prior art, in the embodiment, the longitudinal section of the total heat exchange core 20 located in the intersection area of the new air air duct 10A and the return air air duct 10B is rectangular, i.e. a cuboid, the total heat exchange core is arranged horizontally, and the air inlet face of the total heat exchange core 20 is completely exposed to the new air air duct 10A and the return air air duct 10B. This not only avoids airflow dead angles, but also ensures that the airflow can uniformly and fully contact the entire heat exchange face, thereby improving the heat exchange efficiency.

[0024] Meanwhile, the shell 10 is provided with a fixing member 30 and a movable member 40 for fixing the total heat exchange core 20, the fixing member 30 and the movable member 40 are respectively arranged at two opposite positions of the total heat exchange core 20 to position the total heat exchange core 20, and when the movable member 40 is detached from the machine body 100, the total heat exchange core 20 is configured to be pulled out of the shell 10 along the width direction of the machine body 100. Specifically, the fixing member 30 is fixedly installed on the shell 10, and the movable member 40 is detachably connected with the shell 10. In the embodiment, the movable member 40 is connected with the shell 10 through screws, and when the total heat exchange core 20 needs to be maintained or replaced, the screws are only needed to be unscrewed, the movable member 40 is removed, and then the total heat exchange core 20 can be pulled out along the width direction of the shell 10, which is simple and convenient to operate.

[0025] This diagonal fixing manner does not need to separately provide a fixing outer frame for the total heat exchange core 20, simplifies the structure and saves space. Under the premise of ensuring sufficient heat exchange area, the thickness of the total heat exchange core 20 is effectively reduced, and then the thickness of the entire machine body 100 is reduced, so that the bidirectional flow total heat new air dehumidifier is more suitable for installation in space-limited places such as ceiling. For example, under the condition that the overall size of the machine body 100 is 1195mm x 725mm x 280mm (length x width x height), the structure of the cuboid total heat exchange core 20 in the embodiment can increase the volume from 15dm 3 to 27dm 3 , and the heat exchange efficiency is improved from 63%-67% to 75%, and the air volume is increased from 200m 3 / h is raised to 250m 3 / h, while fully meeting the demand for device miniaturization, significantly improves the performance of the machine.

[0026] In some embodiments, as shown in Figure 2 , Figure 4 The fixed part 30 and the movable part 40 are both L-shaped angle irons. Using L-shaped angle irons not only facilitates processing and manufacturing, but also makes the material easy to obtain, which makes the manufacturing cost of the entire fresh air dehumidifier lower. After actual assembly in place, whether it is the fixed part 30 or the movable part 40, the L-shaped structure can form a close fit with the two adjacent sides of the total heat exchange core 20, thereby effectively playing a stable support and accurate positioning role for the total heat exchange core 20, preventing unintended movement of the total heat exchange core 20 in the horizontal direction.

[0027] In some embodiments, as shown in Figure 2 The outer shell 10 is provided with an access opening 11 on one side in the width direction, and a removable access plate 12 is installed at the access opening 11; when the access plate 12 is removed, the movable part 40 and the total heat exchange core 20 are exposed to the access opening 11, and the total heat exchange core 20 can be pulled out from the access opening 11 along the width direction of the outer shell 10. In specific implementation, as shown in Figure 2 The access plate 12 is hinged on one side at the opening of the access opening 11, so that the access plate is still connected to the machine body after being opened and will not be completely separated, effectively preventing the access plate 12 from being accidentally dropped or lost, avoiding the trouble caused by missing parts, and improving the safety of maintenance operations.

[0028] In daily maintenance operations, when the movable part 40 or the total heat exchange core 20 needs to be inspected, cleaned or replaced, the maintenance personnel do not need to disassemble any other parts of the machine body 100, and only need to open the hinged access plate 12 to completely expose the movable part 40 and the total heat exchange core 20 to the access opening 11. At this time, the maintenance personnel can clearly observe the status of the internal components and can easily perform cleaning, inspection and other operations, such as pulling out the total heat exchange core 20 along the width direction of the outer shell 10 from the access opening 11, that is, the maintenance personnel do not need to disassemble the entire heavy machine body 100 from the installation position, but can easily complete the removal and replacement of the total heat exchange core 20 through the access opening 11 in situ, greatly improving the convenience and efficiency of maintenance operations.

[0029] In some embodiments, as shown in Figure 2 , Figure 4As shown, the partition plate includes a first sub-plate 50, the shell 10 has a side plate opposite to the access plate 12, one side of the first sub-plate 50 is fixed to the side plate, and the other side extends along the extraction direction of the total heat exchange core 20 and is connected with the fixing member 30. On the one hand, the first sub-plate 50 connects the side plate of the shell 10 and the fixing member 30, which is equivalent to adding a reinforcing rib inside the shell 10, so as to improve the overall structural strength and rigidity of the shell 11. On the other hand, the fresh air duct 10A and the return air duct 10B generally extend along the length direction of the machine body 100, while the first sub-plate 50 extends along the extraction direction of the total heat exchange core 20, i.e. the width direction of the machine body 100, so as to provide more spacious transverse space for the duct on the side where the first sub-plate 50 is located, facilitate the arrangement of the supply air fan, the exhaust air fan, the dehumidification assembly or other components requiring larger space, and avoid the problems of mutual interference and space congestion among components, thereby creating favorable conditions for realizing a more compact, efficient and reasonable overall structure layout.

[0030] In some embodiments, as shown in Figure 2 、 Figure 3 Two positioning members 60 are further arranged at the other two diagonal positions of the total heat exchange core 20, the positioning member 60 is fixed in the shell 10, and the positioning member 60 has a guide plate 61 extending along the extraction direction of the total heat exchange core 20. During the installation process of the total heat exchange core 20, when the operator pushes or extracts the total heat exchange core 20 into or out of the machine box, the guide plates 61 arranged at the other two diagonal positions guide the total heat exchange core 20 to smoothly slide along the predetermined track, effectively preventing the total heat exchange core 20 from tilting or deviating during the pushing or extracting process. In this embodiment, the positioning member 60 can adopt a V-shaped angle iron, so as to ensure that after the total heat exchange core 20 is accurately positioned, the positioning member 60 at least contacts one side surface of the total heat exchange core 20, and then cooperates with the fixing member 30 and the movable member 40 to firmly fix the total heat exchange core 20 in the working position, preventing any unnecessary displacement or vibration of the total heat exchange core 20 during use, thereby ensuring the stable operation and optimal performance of the bidirectional flow total heat new air dehumidifier.

[0031] In specific implementation, as shown in Figures 2 to 4As shown, the partition further includes a second sub-plate 51 and a third sub-plate 52 extending along the length direction of the shell 10, and the two positioning members 60 are respectively fixed to the opposite ends of the second sub-plate 51 and the third sub-plate 52. Specifically, the second sub-plate 51 and the third sub-plate 52 serve as key separation components of the fresh air duct 10A and the return air duct 10B, and the positioning members 60 are installed on the second sub-plate 51 and the third sub-plate 52, so that in the actual assembly process, the positioning members 60 can be assembled with the second sub-plate 51 and the third sub-plate 52 into a prefabricated component in advance, and then the prefabricated component is integrally installed into the cabinet, thereby simplifying the assembly process. In a specific example, the positioning member 60 is an integrated structure formed by directly bending the side edges of the second sub-plate 51 and the third sub-plate 52. Compared with a split positioning member, the integrally formed positioning member 60 is better in structural strength, connection reliability, and deformation resistance.

[0032] In some embodiments, as shown in FIG. 1, the fresh air inlet of the fresh air duct 10A is provided with a three-in-one sensor for detecting PM2.5, temperature and humidity. Compared with using three independent sensors, using a three-in-one sensor can reduce the procurement cost and installation cost, so as to realize real-time, comprehensive and accurate sensing of various key quality parameters of the fresh air about to enter the indoor, thereby laying a solid data foundation for subsequent intelligent control and user interaction. Figure 4 As shown, the second sub-plate 51 and the third sub-plate 52 are not coplanar. With this structural design, the posture of the total heat exchange core 20 in the cabinet 11 can be changed, so that the diagonal line is arranged obliquely relative to the length direction of the machine body, that is, in the case that the size of the cabinet 11 does not change, the obliquely arranged total heat exchange core 20 can reduce the space occupation in the width direction of the machine body 100, and the corner space or irregular space existing in the length direction of the machine body 100 can accommodate the space occupation of the obliquely arranged total heat exchange core 20 in the length direction of the machine body 100, which can provide more sufficient space for the layout of other key components (such as fans, motors, control modules, sensors, etc.), thereby helping to realize the high compactness of the overall structure.

[0033] In some embodiments, a three-in-one sensor is arranged at the fresh air inlet of the fresh air duct 10A, which is used to detect PM2.5, temperature and humidity. Compared with using three independent sensors, using a three-in-one sensor can reduce the procurement cost and installation cost, so as to realize real-time, comprehensive and accurate sensing of various key quality parameters of the fresh air about to enter the indoor, thereby laying a solid data foundation for subsequent intelligent control and user interaction.

[0034] In some embodiments, the shell 10 is provided with a fresh air inlet 13, an exhaust air outlet 14, an air supply outlet 15 and a return air outlet 16, the fresh air inlet 13 and the air supply outlet 15 communicate to form a fresh air air duct 10A, the return air outlet 16 and the exhaust air outlet 14 communicate to form a return air air duct 10B, and the fresh air inlet 13, the exhaust air outlet 14, the air supply outlet 15 and the return air outlet 16 are respectively provided with a first air valve to control the opening and closing state of each air outlet; the air supply outlet 15 and the return air outlet 16 are communicated through a circulating air duct 10C, and a second air valve 17 is arranged on the partition plate to selectively open or close the circulating air duct 10C by controlling the opening and closing state of the second air valve 17. When circulating dehumidification of indoor air is required, the air valves of the fresh air inlet 13 and the exhaust air outlet 14 are closed, the second air valve 17 is opened, and the air supply fan 40 is started, at this time, indoor air enters through the return air outlet 16, and due to the opening of the second air valve 17, the airflow enters the circulating air duct 10C, in the circulating air duct 10C, the airflow is dehumidified by the dehumidification assembly, the air humidity is reduced, and the dehumidified air is then sent back to the indoor environment from the air supply outlet 15 under the drive of the fan. Through this circulating dehumidification mode, the indoor air humidity can be effectively reduced, and the growth of bacteria and mold in a humid environment can be prevented, thereby creating a more comfortable and healthy indoor environment for users.

[0035] The bidirectional flow total heat new air dehumidifier designed in the present application benefits from the fact that the air inlet face of the total heat exchange core with a rectangular longitudinal section is completely exposed to the new air and return air ducts, which not only avoids airflow dead angles and ensures that the airflow can uniformly and fully contact the entire heat exchange face, thereby improving the heat exchange efficiency, but also realizes the compactness of the entire machine, especially the significant reduction in the size in the thickness direction, which is more conducive to convenient installation in space-limited places such as ceiling; at the same time, by arranging a detachable movable part, the total heat exchange core can be easily taken out for cleaning or replacement without the need for professional tools and complex operations when necessary, which greatly reduces the difficulty and cost of maintenance and effectively prolongs the service life of the equipment.

[0036] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "vertical", "upper", "lower", "horizontal" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0037] In the description of the application, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. made in the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A bidirectional flow total heat new air dehumidifier, comprising a machine body, a total heat exchange core is arranged in the shell of the machine body, and the inside of the machine body is divided into a new air air duct and a return air air duct by the total heat exchange core, a partition plate and the shell, characterized in that, The longitudinal section of the total heat exchange core is rectangular, and the air inlet surface of the total heat exchange core is completely exposed to the fresh air duct and the return air duct; the shell is provided with a fixing member and a movable member for fixing the total heat exchange core, and the fixing member and the movable member are respectively arranged at two opposite positions of the total heat exchange core; when the movable member is detached from the machine body, the total heat exchange core is configured to be pulled out of the shell along the width direction of the machine body.

2. The bidirectional flow total heat new fresh air dehumidifier of claim 1, wherein, The fixing member and the movable member are both L-shaped angle irons.

3. The bidirectional flow total heat new fresh air dehumidifier according to claim 1 or 2, characterized in that, The movable member is detachably connected with the shell by screws.

4. The bidirectional flow total heat new fresh air dehumidifier of claim 1, wherein, The shell is provided with an access hole on one side in the width direction thereof, and an access plate is detachably mounted at the access hole; when the access plate is removed, the movable member and the total heat exchange core are exposed to the access hole, and the total heat exchange core can be pulled out of the access hole along the width direction of the shell.

5. The bidirectional flow total heat new fresh air dehumidifier of claim 4, wherein, The partition plate includes a first sub-plate, the shell has a side plate opposite to the access plate, one side of the first sub-plate is fixed to the side plate, and the other side extends along the pulling-out direction of the total heat exchange core and is connected with the fixing member.

6. The reversible flow total heat fresh air dehumidifier of claim 1, wherein, The other two opposite positions of the total heat exchange core are also provided with two positioning members, the positioning members are fixed in the shell, and the positioning members have guide plates extending along the pulling-out direction of the total heat exchange core.

7. The bidirectional flow total heat new fresh air dehumidifier of claim 6, wherein, The partition plate further includes a second sub-plate and a third sub-plate extending along the length direction of the shell, and the two positioning members are respectively fixed to opposite side ends of the second sub-plate and the third sub-plate.

8. The bidirectional flow total heat new fresh air dehumidifier of claim 7, wherein, The second sub-plate and the third sub-plate are not coplanar.

9. The reversible-flow total heat new fresh air dehumidifier of claim 1, wherein, A three-in-one sensor is arranged at the fresh air inlet of the fresh air duct for detecting PM2.5, temperature and humidity.

10. The dual-flow total heat new fresh air dehumidifier of claim 1, wherein, The shell is provided with a fresh air inlet, an exhaust air outlet, a supply air outlet and a return air outlet, the fresh air inlet and the supply air outlet are communicated to form the fresh air duct, the return air outlet and the exhaust air outlet are communicated to form the return air duct, the fresh air inlet, the exhaust air outlet, the supply air outlet and the return air outlet are respectively provided with first air valves; the supply air outlet and the return air outlet are communicated by a circulating air duct, and the partition plate is provided with a second air valve, and the circulating air duct is selectively opened or closed by controlling the opening and closing state of the second air valve.

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