Energy recovery device of fresh air system

Abstract

The utility model relates to the technical field of fresh air systems, and discloses an energy recovery device of a fresh air system, which comprises a shell, a fresh air channel is fixedly connected in the shell, and an exhaust channel is fixedly connected in the shell. According to the energy recovery device of the fresh air system, the wave-shaped fresh air channel and the wave-shaped exhaust channel are arranged, the fresh air channel and the exhaust channel are fully attached, high-heat-conduction materials are used, and the outer surfaces of the fresh air channel and the exhaust channel are coated with heat conduction coatings, so that the contact area between fresh air and air is effectively increased; the heat exchange time between fresh air and gas is prolonged, the fresh air is promoted to make full contact with the gas, heat transfer is more sufficient, the heat recovery rate is improved, and the problems that when an existing energy recovery device works, the contact time of the gas and the fresh air is short, heat transfer is not sufficient to a certain degree, and energy is wasted are solved. And a certain optimization space still exists in the heat recovery rate.

Description

Technical Field

[0001] The present application relates to the technical field of fresh air systems, and specifically to an energy recovery device for fresh air systems. Background Art

[0002] A fresh air system is an independent air handling system consisting of both a supply and exhaust system. It comes in two types: ducted and ductless. A ducted fresh air system consists of a fresh air blower and ducting accessories. The blower purifies outdoor air, introduces it into the room, and exhausts it through ducts. A ductless fresh air system also uses a fresh air blower, which purifies outdoor air and introduces it into the room. Ducted fresh air systems are more suitable for industrial or large office areas due to their large engineering requirements, while ductless systems are more suitable for home use due to their ease of installation.

[0003] An existing patent (publication number: CN 211926056 U) discloses an air energy recovery device and system for fresh air systems. This device, which belongs to the field of fresh air systems, comprises a housing with a cavity within it, and a heat exchanger within the cavity. An exhaust inlet and an exhaust outlet are provided on a pair of opposing surfaces of the housing, and a fresh air inlet and an outlet are provided on another pair of opposing surfaces of the housing. The central axes of the fresh air inlet and the fresh air outlet are aligned and can pass directly through the heat exchanger. This device addresses the problem of low heat recovery efficiency caused by the undersized plate-fin heat recovery core in existing systems.

[0004] When the above-mentioned energy recovery device is in operation, the contact time between the gas and the fresh air is relatively short, resulting in insufficient heat transfer to a certain extent, and there is still room for optimization of the heat recovery rate. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the present application provides an energy recovery device for a fresh air system, which has the advantages of promoting full contact between gas and fresh air, making heat transfer more complete, and improving heat recovery rate. It solves the problem that the contact time between gas and fresh air in existing energy recovery devices is short during operation, resulting in insufficient heat transfer to a certain extent, and there is still room for optimization of the heat recovery rate.

[0006] To achieve the above objectives, the present application provides the following technical solution: an energy recovery device for a fresh air system, comprising a shell, a fresh air channel fixedly connected to the interior of the shell, and an exhaust channel fixedly connected to the interior of the shell.

[0007] Through the above scheme, since the contact time between gas and fresh air in the existing energy recovery device is relatively short during operation, the heat transfer is not sufficient to a certain extent, and there is still room for optimization of the heat recovery rate. By setting a wavy fresh air channel and exhaust channel, and making the fresh air channel and exhaust channel fully fit, the contact area between the fresh air and the gas is effectively increased, which promotes full contact between the fresh air and the gas, makes the heat transfer more sufficient, and improves the heat recovery rate.

[0008] Furthermore, the fresh air channel is wavy, the exhaust channel is wavy, and the outer surface of the fresh air channel contacts the outer surface of the exhaust channel.

[0009] Through the above scheme, the gas in the fresh air channel is enabled to fully contact the fresh air in the exhaust channel, which prolongs the heat exchange time between the fresh air and the gas, makes the heat transfer more complete, and improves the heat recovery rate.

[0010] Furthermore, a fresh air inlet is provided at one end of the fresh air passage, and a fresh air outlet is provided at the other end of the fresh air passage.

[0011] Through the above scheme, by setting up fresh air inlets and fresh air outlets, outdoor fresh air can be circulated.

[0012] Furthermore, an exhaust inlet is provided at the top end of the exhaust channel, and an exhaust outlet is provided at the bottom end of the exhaust channel.

[0013] According to the above solution, by providing the exhaust inlet and the exhaust outlet, the air in the air-conditioned room can be circulated.

[0014] Furthermore, the fresh air duct is made of aluminum alloy, and the exhaust duct is made of aluminum alloy.

[0015] Through the above solution, aluminum is a highly thermally conductive material that can assist in heat exchange between the fresh air duct and the exhaust duct, thereby increasing the heat exchange rate between the gas and the fresh air, and thereby increasing the heat recovery rate.

[0016] Furthermore, the outer surface of the fresh air channel is coated with a thermal conductive coating, and the outer surface of the exhaust channel is coated with a thermal conductive coating.

[0017] Through the above solution, the thermal conductive coating can assist in heat exchange between the fresh air channel and the exhaust air channel, thereby improving the heat exchange rate between the gas and the fresh air, and thus improving the heat recovery rate.

[0018] Furthermore, a filter is fixedly connected to the inner wall of the fresh air channel, and the filter is located at the fresh air inlet.

[0019] Through the above solution, the outdoor fresh air is filtered and the fresh air inlet is blocked to prevent foreign matter from entering the fresh air channel through the fresh air inlet and causing blockage.

[0020] Furthermore, the inner wall of the shell is coated with a heat-insulating coating, and the outer surface of the shell is coated with an anti-rust coating.

[0021] Through the above solution, the thermal insulation coating can block the heat inside the shell to prevent heat loss, and the anti-rust coating can protect the shell to prevent the shell from rusting easily.

[0022] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0023] The energy recovery device of the fresh air system effectively increases the contact area between the fresh air and the gas, prolongs the heat exchange time between the fresh air and the gas, promotes full contact between the fresh air and the gas, makes the heat transfer more sufficient, and improves the heat recovery rate. It solves the problem of the existing energy recovery device that the contact time between the gas and the fresh air is short during operation, resulting in insufficient heat transfer to a certain extent and the heat recovery rate still having a certain room for optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the overall three-dimensional structure diagram of this application;

[0025] Figure 2 This is the filter structure diagram for this application;

[0026] Figure 3 This is the shell structure diagram of this application;

[0027] Figure 4 This is a partial cross-sectional structural diagram of this application.

[0028] In the picture:

[0029] 1. Casing; 2. Fresh air duct; 3. Exhaust duct; 4. Fresh air inlet; 5. Fresh air outlet; 6. Exhaust inlet; 7. Exhaust outlet; 8. Filter. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] See also Figure 1 、 Figure 3 and Figure 4In this embodiment, an energy recovery device for a fresh air system includes a shell 1, a fresh air channel 2 is fixedly connected to the interior of the shell 1, and an exhaust channel 3 is fixedly connected to the interior of the shell 1.

[0032] See also Figure 3 and Figure 4 The fresh air channel 2 is wavy, and the exhaust channel 3 is wavy. The outer surface of the fresh air channel 2 contacts the outer surface of the exhaust channel 3, which enables the gas in the fresh air channel 2 to fully contact the fresh air in the exhaust channel 3, extending the heat exchange time between the fresh air and the gas, making the heat transfer more complete, and improving the heat recovery rate.

[0033] See also Figure 1 、 Figure 2 and Figure 4 A fresh air inlet 4 is provided at one end of the fresh air channel 2, and a fresh air outlet 5 is provided at the other end of the fresh air channel 2. By setting the fresh air inlet 4 and the fresh air outlet 5, outdoor fresh air can circulate.

[0034] See also Figure 1 、 Figure 2 and Figure 4 An exhaust inlet 6 is provided at the top of the exhaust channel 3, and an exhaust outlet 7 is provided at the bottom of the exhaust channel 3. By arranging the exhaust inlet 6 and the exhaust outlet 7, the gas in the air-conditioned room can circulate.

[0035] See also Figure 3 and Figure 4 The fresh air channel 2 is made of aluminum alloy, and the exhaust channel 3 is made of aluminum alloy. Aluminum is a high thermal conductivity material, which can assist in heat exchange between the fresh air channel 2 and the exhaust channel 3, thereby improving the heat exchange rate between the gas and the fresh air, and thus improving the heat recovery rate.

[0036] See also Figure 3 and Figure 4 The outer surface of the fresh air channel 2 is coated with a thermal conductive coating, and the outer surface of the exhaust channel 3 is coated with a thermal conductive coating. The thermal conductive coating can assist in heat exchange between the fresh air channel 2 and the exhaust channel 3, thereby improving the heat exchange rate between the gas and the fresh air, and thus improving the heat recovery rate.

[0037] See also Figure 2 、 Figure 3 and Figure 4 The inner wall of the fresh air channel 2 is fixedly connected with a filter screen 8, which is located at the position of the fresh air inlet 4 to filter the outdoor fresh air and block the fresh air inlet 4 to prevent foreign matter from entering the fresh air channel 2 through the fresh air inlet 4 and causing blockage.

[0038] See also Figure 1 、 Figure 2 and Figure 3The inner wall of the shell 1 is coated with a thermal insulation coating, and the outer surface of the shell 1 is coated with an anti-rust coating. The thermal insulation coating can block the heat inside the shell 1 to prevent heat loss, and the anti-rust coating can protect the shell 1 to prevent the shell 1 from rusting easily.

[0039] In this embodiment, an energy recovery device for a fresh air system is provided, by providing a wavy fresh air channel 2 and an exhaust channel 3, making the fresh air channel 2 and the exhaust channel 3 fully fit together, and using high thermal conductivity materials and coating the outer surfaces of the fresh air channel 2 and the exhaust channel 3 with a thermal conductive coating, thereby effectively increasing the contact area between the fresh air and the gas, extending the heat exchange time between the fresh air and the gas, promoting full contact between the fresh air and the gas, making the heat transfer more sufficient, and improving the heat recovery rate, thereby solving the problem that the existing energy recovery device has a short contact time between the gas and the fresh air during operation, resulting in insufficient heat transfer to a certain extent, and the heat recovery rate still has a certain room for optimization.

[0040] It should be noted that the fresh air channel 2 and the exhaust channel 3 can also be made of other high thermal conductivity materials such as copper to improve the heat exchange efficiency between the gas and the fresh air, thereby improving the heat recovery rate.

[0041] The working principle of the above embodiment is:

[0042] The low-temperature or high-temperature gas in the air-conditioned room will enter the exhaust duct 3 through the exhaust inlet 6, and then flow out through the exhaust outlet 7. The high-temperature or low-temperature fresh air outside will enter the fresh air duct 2 through the fresh air inlet 4, and then flow out through the fresh air outlet 5. The gas and the fresh air will exchange heat during the circulation process. The wavy and fully fitted fresh air duct 2 and exhaust duct 3 effectively increase the contact area between the fresh air and the gas, extend the heat exchange time between the fresh air and the gas, promote full contact between the fresh air and the gas, make the heat transfer more sufficient, and improve the heat recovery rate. High thermal conductivity materials and thermal conductive coatings can assist in heat exchange between the fresh air duct 2 and the exhaust duct 3, and improve the heat exchange rate between the gas and the fresh air. The filter 8 can filter the outdoor fresh air and block the fresh air inlet 4 to prevent foreign matter from entering the fresh air duct 2 through the fresh air inlet 4 and causing blockage. The thermal insulation coating can block the heat inside the shell 1, prevent heat loss, and promote smooth heat exchange. The anti-rust coating can protect the shell 1, prevent the shell 1 from rusting easily, and improve the durability of the shell 1.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0044] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An energy recovery device for a fresh air system, comprising a housing (1), characterized in that: A fresh air passage (2) is fixedly connected to the interior of the housing (1), and an exhaust air passage (3) is fixedly connected to the interior of the housing (1); The fresh air channel (2) is wavy, the exhaust channel (3) is wavy, and the outer surface of the fresh air channel (2) contacts the outer surface of the exhaust channel (3).

2. The energy recovery device for a fresh air system according to claim 1, characterized in that: A fresh air inlet (4) is provided at one end of the fresh air channel (2), and a fresh air outlet (5) is provided at the other end of the fresh air channel (2).

3. The energy recovery device for a fresh air system according to claim 1, characterized in that: An exhaust inlet (6) is provided at the top end of the exhaust channel (3), and an exhaust outlet (7) is provided at the bottom end of the exhaust channel (3).

4. The energy recovery device for a fresh air system according to claim 1, characterized in that: The fresh air channel (2) is made of aluminum alloy, and the exhaust air channel (3) is made of aluminum alloy.

5. The energy recovery device for a fresh air system according to claim 1, characterized in that: The outer surface of the fresh air channel (2) is coated with a thermal conductive coating, and the outer surface of the exhaust channel (3) is coated with a thermal conductive coating.

6. The energy recovery device for a fresh air system according to claim 1, characterized in that: A filter screen (8) is fixedly connected to the inner wall of the fresh air channel (2), and the filter screen (8) is located at the position of the fresh air inlet (4).

7. The energy recovery device for a fresh air system according to claim 1, characterized in that: The inner wall of the shell (1) is coated with a heat-insulating coating, and the outer surface of the shell (1) is coated with an anti-rust coating.

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