Fresh air handling unit with dehumidification function

Abstract

The utility model discloses a fresh air handling unit with a dehumidification function, which comprises a fresh air leading-in channel, an air outlet channel, an air outlet channel and a dehumidification channel, one end of the heat exchanger communicates with the air supply outlet of the fresh air introduction channel; the inlet end of the first dehumidifier communicates with the other end of the heat exchanger; one end of the air supply channel communicates with an outlet of the first dehumidifier, the other end of the air supply channel communicates with the indoor space, and the first dehumidifier is located between the heat exchanger and the air supply channel; one end of the air return channel communicates with the indoor space, and the other end communicates with the outdoor space; the second dehumidifier is arranged between the fresh air introduction channel and the heat exchanger or the inlet end of the second dehumidifier communicates with the air return channel, and the outlet end of the second dehumidifier communicates with the other end of the air supply channel. According to the fresh air system, the dehumidification effect can be improved, large-area condensate water is prevented from occurring in the fresh air system, dehumidified and filtered fresh air is fed into a room, the whole room is covered, the room is kept dry and comfortable, oxygen is full, and the comfort degree is improved.

Description

Technical Field

[0001] The utility model belongs to the field of fresh air units and relates to a fresh air unit with a dehumidification function. Background Art

[0002] The fresh air system is an important device in modern buildings, mainly used for the exchange of indoor and outdoor air to keep the indoor air fresh. However, in a humid environment, the outdoor air introduced by the fresh air system often contains a high humidity, which may lead to too high indoor humidity, affecting the living and working comfort, and even may cause problems such as mold growth, furniture deformation, and equipment dampness affecting the service life. Therefore, developing a fresh air system with a dehumidification function to meet the use requirements in different environments has important practical significance. Summary of the Invention

[0003] An object of the utility model is to solve at least the above problems and / or defects and provide at least the advantages described hereinafter.

[0004] The purpose of the utility model is to provide a fresh air unit with a dehumidification function.

[0005] For this purpose, the technical solution provided by the utility model is as follows:

[0006] A fresh air unit with a dehumidification function, comprising:

[0007] A fresh air introduction channel, which includes an air inlet with a gradually decreasing opening at one end, an air guiding opening communicating with the smallest diameter part of the air inlet, and an air supply opening with a gradually increasing diameter communicating with the air guiding opening. Among them, the diameter of the air guiding opening is the same as the smallest diameter of the air inlet, the largest diameter of the air supply opening is larger than the largest diameter of the air inlet, and the length of the air supply opening is less than the length of the air inlet, and the air inlet communicates with the external air;

[0008] A heat exchanger, one end of which communicates with the air supply opening;

[0009] A first dehumidifier, the inlet end of which communicates with the other end of the heat exchanger;

[0010] A air supply channel, one end of which communicates with the outlet of the first dehumidifier and the other end of which communicates with the indoor, and the first dehumidifier is located between the heat exchanger and the air supply channel;

[0011] A return air channel, one end of which communicates with the indoor and the other end of which communicates with the outdoor;

[0012] A second dehumidifier, which is arranged between the fresh air introduction channel and the heat exchanger or the inlet end of the second dehumidifier communicates with the return air channel, and the outlet end of the second dehumidifier communicates with the other end of the air supply channel;

[0013] Wherein, heat insulation structures are provided outside the fresh air introduction channel, the air supply channel, and the air return channel, and the heat insulation structure includes a waterproof layer, a high-temperature resistant layer, a cotton layer, and an aerogel layer which are arranged in sequence from outside to inside.

[0014] Preferably, in the fresh air unit with dehumidification function, it further includes:

[0015] A filtering device which is arranged at one end of the fresh air introduction channel along the radial direction of the fresh air introduction channel.

[0016] Preferably, in the fresh air unit with dehumidification function, the first dehumidifier adopts an evaporator.

[0017] Preferably, in the fresh air unit with dehumidification function, it further includes:

[0018] A housing, and the fresh air introduction channel, the heat exchanger, the first dehumidifier, the air supply channel, the air return channel, and the second dehumidifier are all integrated in the housing.

[0019] Preferably, in the fresh air unit with dehumidification function, an air inlet of the housing and an air return outlet are provided on one side of the housing, the air inlet of the housing is communicated with the air inlet of the fresh air introduction channel, and the air return outlet is communicated with the other end of the air return channel.

[0020] Preferably, in the fresh air unit with dehumidification function, an air supply outlet of the housing and an air return inlet are provided on the other side of the housing, the air supply outlet of the housing is communicated with the other end of the air supply channel, and the air return inlet is communicated with one end of the air return channel.

[0021] The utility model has at least the following beneficial effects:

[0022] The fresh air introduction device of the present utility model includes an air inlet, an air induction port, and an air supply port. The outdoor fresh air introduced through the fresh air introduction channel has a large flow rate and causes little impact on the heat exchanger at the outlet. In one solution, it is transported to the second dehumidifier through a pipeline. When the fresh air passes through the heat exchanger, it exchanges heat with the indoor moisture. On the one hand, it ensures that the temperature of the fresh air is close to the indoor temperature, and on the other hand, it brings the moisture to the first dehumidifier for dehumidification again. Finally, the dehumidified fresh air is sent into the room to achieve full-house coverage, keeping the room dry, comfortable, and oxygen-rich. In another solution, the fresh air introduction device is responsible for introducing outdoor fresh air. When the fresh air passes through the heat exchanger, it exchanges heat with the indoor moisture. On the one hand, it ensures that the temperature of the fresh air is close to the indoor temperature, and on the other hand, it brings the moisture to the first dehumidifier for dehumidification, and then sends the dehumidified fresh air into the room. At the same time, when returning air, part of the air passing through the return air channel is dehumidified by the second dehumidifier and then mixed with the fresh air and enters the room. The heat preservation structure of the present utility model can prevent water, provide heat preservation and heat insulation, achieve better heat preservation effect for each channel, and reduce the heat loss of each channel. The present utility model can improve the dehumidification effect, avoid large-area condensate water in the fresh air system, send the fresh air after dehumidification and filtration into the room to achieve full-house coverage, keep the room dry, comfortable, and oxygen-rich, and improve the comfort level.

[0023] Other advantages, objectives, and features of the present utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a fresh air unit with dehumidification function in one solution of the present utility model.

[0025] Figure 2 It is a schematic structural diagram of the fresh air introduction channel in one solution of the present utility model.

[0026] Figure 3 It is a schematic structural diagram of a fresh air unit with dehumidification function in one solution of the present utility model.

[0027] Figure 4 It is a schematic structural diagram of the heat preservation structure in one solution of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following further describes the present utility model in detail with reference to the drawings so that those skilled in the art can implement it according to the description in the specification.

[0029] It should be understood that the terms such as "having", "including", and "comprising" used herein do not exclude the presence or addition of one or more other elements or their combinations.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The orientation or positional relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0031] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the present utility model provides a fresh air unit with a dehumidification function, including:

[0032] A fresh air introduction channel 1, which includes an air inlet with a gradually decreasing opening at one end, an air guiding port connected to the smallest diameter part of the air inlet, and an air supply port with a gradually increasing diameter connected to the air guiding port. Among them, the diameter of the air guiding port is the same as the smallest diameter of the air inlet, the largest diameter of the air supply port is greater than the largest diameter of the air inlet, and the length of the air supply port is less than the length of the air inlet. The air inlet is connected to the external air;

[0033] A heat exchanger 4, one end of which is connected to the other end of the air supply port;

[0034] A first dehumidifier 5, the inlet end of which is connected to the other end of the heat exchanger 4;

[0035] A air supply channel 2, one end of which is connected to the outlet of the first dehumidifier 5 and the other end is connected to the interior. The first dehumidifier 5 is located between the heat exchanger 4 and the air supply channel 2;

[0036] A return air channel 3, one end of which is connected to the interior and the other end is connected to the exterior;

[0037] A second dehumidifier 6, which is arranged between the fresh air introduction channel 1 and the heat exchanger 4 or the inlet end of the second dehumidifier 6 is connected to the return air channel 3, and the outlet end of the second dehumidifier 6 is connected to the other end of the air supply channel 2. As Figure 2 shown.

[0038] The outer parts of the fresh air intake channel 1, the air supply channel 2, and the air return channel 3 are all provided with a heat preservation structure 7, such as Figure 3 shown, the heat preservation structure 7 includes a waterproof layer 701, a high-temperature resistant layer 702, a cotton layer 703, and an aerogel layer 704 arranged in sequence from outside to inside.

[0039] In the present utility model, the fresh air intake device is responsible for introducing fresh outdoor air. In one solution, it is transported through a pipeline to the second dehumidifier 6. When the fresh air passes through the heat exchanger 4, it exchanges heat with the indoor moisture. On the one hand, it ensures that the temperature of the fresh air is close to the indoor temperature, and on the other hand, it brings the moisture to the first dehumidifier 5 for further dehumidification. Finally, the dehumidified fresh air is sent into the room to achieve full-house coverage, keeping the room dry, comfortable, and oxygen-rich. In another solution, the fresh air intake device is responsible for introducing fresh outdoor air. When the fresh air passes through the heat exchanger 4, it exchanges heat with the indoor moisture. On the one hand, it ensures that the temperature of the fresh air is close to the indoor temperature, and on the other hand, it brings the moisture to the first dehumidifier 5 for dehumidification, and the dehumidified fresh air is sent into the room. At the same time, when returning air, part of the air passing through the air return channel 3 is dehumidified by the second dehumidifier 6 and then mixed with the fresh air and sent into the room. The heat preservation structure 7 of the present utility model can be waterproof, heat-insulating, and has a better heat preservation effect on each channel, reducing the heat loss of each channel. The present utility model can improve the dehumidification effect, avoid large-area condensate water in the fresh air system, and send the dehumidified and filtered fresh air into the room to achieve full-house coverage, keeping the room dry, comfortable, and oxygen-rich, and improving the comfort level.

[0040] In one solution of the present utility model, preferably, it further includes:

[0041] A filtering device, which is arranged at one end of the fresh air intake channel 1 along the radial direction of the fresh air intake channel 1. It prevents large foreign objects from entering the fresh air intake channel 1 and blocking the channel or damaging the equipment. The filtering device can adopt a filter net.

[0042] In one solution of the present utility model, preferably, the first dehumidifier 5 adopts an evaporator. The second dehumidifier 6 adopts a condensation dehumidifier. The equipment reduces the temperature to condense the water vapor in the air into liquid water, and the water can be collected and discharged through a water tank to achieve the dehumidification function.

[0043] In one solution of the present utility model, preferably, it further includes:

[0044] A housing 10, and the fresh air intake channel 1, the heat exchanger 4, the first dehumidifier 5, the air supply channel 2, the air return channel 3, and the second dehumidifier 6 are all integrated in the housing 10. Arranging each device in a housing 10 is convenient for installation.

[0045] In the above solution, preferably, an air inlet and a return air outlet are provided on one side of the housing 10. The air inlet of the housing is communicated with the air inlet of the fresh air introduction channel 1, and the return air outlet is communicated with the other end of the return air channel 3. Preferably, the air outlet is arranged above the air inlet of the housing.

[0046] In the above solution, preferably, a housing air supply outlet and a return air inlet are provided on the other side of the housing 10. The housing air supply outlet is communicated with the other end of the air supply channel 2, and the return air inlet is communicated with one end of the return air channel 3. An air inlet path and a return air path are formed.

[0047] In one of the solutions of the present utility model, a fresh air unit with a dehumidification function includes:

[0048] A fresh air introduction channel 1, which includes an air inlet with a gradually decreasing opening at one end, an air guiding port communicated with the smallest diameter part of the air inlet, and an air supply port with a gradually increasing diameter communicated with the air guiding port. Among them, the diameter of the air guiding port is the same as the smallest diameter of the air inlet, the largest diameter of the air supply port is larger than the largest diameter of the air inlet, and the length of the air supply port is less than the length of the air inlet. The air inlet is communicated with the external air;

[0049] A heat exchanger 4, one end of which is communicated with the other end of the air supply port;

[0050] A first dehumidifier 5, the inlet end of which is communicated with the other end of the heat exchanger 4;

[0051] An air supply channel 2, one end of which is communicated with the outlet of the first dehumidifier 5 and the other end is communicated with the interior. The first dehumidifier 5 is located between the heat exchanger 4 and the air supply channel 2;

[0052] A return air channel 3, one end of which is communicated with the interior and the other end is communicated with the exterior;

[0053] A second dehumidifier 6, the inlet end of the second dehumidifier 6 is communicated with the return air channel 3, and the outlet end of the second dehumidifier 6 is communicated with the other end of the air supply channel 2.

[0054] Heat preservation structures 7 are arranged outside the fresh air introduction channel 1, the air supply channel 2, and the return air channel 3. The heat preservation structure 7 includes a waterproof layer 701, a high-temperature resistant layer 702, a cotton layer 703, and an aerogel layer 704 arranged in sequence from outside to inside. The heat preservation structure 7 of the present utility model can be waterproof, heat-preserving and heat-insulating, providing a better heat preservation effect for each channel and reducing the heat loss of each channel.

[0055] A filtering device is radially arranged at one end of the fresh air inlet channel 1 along the fresh air inlet channel 1 to prevent large foreign objects from entering the fresh air inlet channel 1 and blocking the channel or damaging the equipment. The filtering device uses a filter screen.

[0056] The first dehumidifier 5 uses an evaporator. The second dehumidifier 6 uses a condensation dehumidifier. The device reduces the temperature to condense the water vapor in the air into liquid water, which can be collected and discharged through a water tank to achieve the dehumidification function.

[0057] A housing 10, in which the fresh air inlet channel 1, the heat exchanger 4, the first dehumidifier 5, the air supply channel 2, the return air channel 3 and the second dehumidifier 6 are all integrated. Arranging all the devices in a housing 10 facilitates installation.

[0058] One side of the housing 10 is provided with a housing air inlet and a return air outlet. The housing air inlet is communicated with one end of the fresh air inlet channel 1, and the return air outlet is communicated with the other end of the return air channel 3.

[0059] The other side of the housing 10 is provided with a housing air supply outlet and a return air inlet. The housing air supply outlet is communicated with the other end of the air supply channel 2, and the return air inlet is communicated with one end of the return air channel 3. An air inlet passage and a return air passage are formed.

[0060] The number of modules and the processing scale described here are used to simplify the description of the present invention. Applications, modifications and variations of the present invention will be obvious to those skilled in the art.

[0061] Although the embodiments of the present invention have been disclosed above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. A fresh air unit with dehumidification function, characterized in that: include: A fresh air introduction channel, comprising an air inlet with an opening that becomes smaller and smaller at one end, an air inlet connected to the air inlet at the smallest diameter, and an air supply port connected to the air inlet with increasingly larger diameters, wherein the diameter of the air inlet is the same as the smallest diameter of the air inlet, the maximum diameter of the air supply port is larger than the maximum diameter of the air inlet, and the length of the air supply port is smaller than the length of the air inlet, and the air inlet is connected to the outside air; a heat exchanger, one end of which is connected to the air supply port; a first dehumidifier, the inlet end of which is in communication with the other end of the heat exchanger; an air supply passage, one end of which is connected to the outlet of the first dehumidifier and the other end of which is connected to the room, wherein the first dehumidifier is located between the heat exchanger and the air supply passage; A return air duct, one end of which is connected to the indoor environment and the other end of which is connected to the outdoor environment; A second dehumidifier, which is arranged between the fresh air introduction channel and the heat exchanger or the inlet end of the second dehumidifier is connected to the return air channel, and the outlet end of the second dehumidifier is connected to the other end of the air supply channel; Among them, the outsides of the fresh air introduction channel, the air supply channel and the return air channel are all provided with insulation structures, and the insulation structure includes a waterproof layer, a high temperature resistant layer, a cotton layer and an aerogel layer arranged in sequence from the outside to the inside.

2. The fresh air unit with dehumidification function according to claim 1, characterized in that: Also includes: The filter device is arranged at one end of the fresh air introduction channel along the radial direction of the fresh air introduction channel.

3. The fresh air unit with dehumidification function according to claim 1, characterized in that: The first dehumidifier adopts an evaporator.

4. The fresh air unit with dehumidification function according to claim 1, characterized in that: Also includes: The shell includes a fresh air introduction channel, a heat exchanger, a first dehumidifier, an air supply channel, a return air channel and a second dehumidifier, all of which are integrated in the shell.

5. The fresh air unit with dehumidification function according to claim 4, characterized in that: A shell air inlet and a return air outlet are provided on one side of the shell. The shell air inlet is connected to the air inlet of the fresh air introduction channel, and the return air outlet is connected to the other end of the return air channel.

6. The fresh air unit with dehumidification function according to claim 4, characterized in that: A shell air supply port and a return air inlet are provided on the other side of the shell. The shell air supply port is communicated with the other end of the air supply channel, and the return air inlet is communicated with one end of the return air channel.

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