A heat recovery reheating coil for a fan

Abstract

The utility model relates to a kind of heat recovery reheating coil technical field of fan, and disclose a kind of heat recovery reheating coil of fan, including heat exchange box, apron, the outer end inboard surface of heat exchange box is fixedly connected with suction fan, the outer end both sides of heat exchange box are provided with suction pipe mouth, the inner end inboard surface of heat exchange box is fixedly connected with air intake fan, the lower end of air intake fan is provided with air intake pipe mouth, the lower end of air intake pipe mouth is provided with air intake pipe shell, the inboard surface of heat exchange box is fixedly connected with outdoor air separation flow bin, first partition and second partition are provided in outdoor air separation flow bin, the surface of first partition is provided with first air guide, the surface of second partition is provided with second air guide, by uniform flow in outdoor air separation flow bin, by the hot air exported by indoor surrounding, cold air can be quickly heat-exchanged and heated, direct heat exchange, improve efficiency, overall structure volume is small, compact structure low cost.

Description

Technical Field

[0001] This utility model relates to the field of heat recovery and reheat coil technology for fans, specifically a heat recovery and reheat coil for fans. Background Technology

[0002] The heat recovery and reheat coil of the fresh air unit plays a crucial role in improving the economy and promoting energy conservation of the air conditioning system. When the air conditioner is heating, the outside heat exchange is affected by the direct entry of cold air into the ventilation, which affects the heating effect. Therefore, heat exchange is needed to utilize the heat recovery coil. In existing technologies, exhaust heat recovery technology has become an efficient solution. This technology can cleverly utilize the residual cold or heat contained in the exhaust air to pre-treat fresh air, thereby significantly reducing the cold energy required to directly treat fresh air and effectively reducing the operating load of air conditioning units. This approach not only helps to improve energy efficiency but also lays a solid foundation for achieving green and sustainable development of buildings. In existing ventilation systems, in order to achieve precise control of the flow rate of fresh air introduced from the outside and air that needs to be exhausted from the room, complex mechanical adjustment devices or electronic control systems are usually relied upon. In existing technologies, such as application publication number CN120252151A, this invention relates to the field of fresh air equipment technology and discloses a heat recovery reheat coil for a fresh air unit, including a reheating mechanism, wherein a heat recovery mechanism is provided on the right side of the reheating mechanism. This type of heat recovery reheat coil for a fresh air system exhibits high-efficiency heat recovery and flexible airflow control during use. Fresh air enters the heat exchange core of the outer casing through the impeller driven by the second motor, where it exchanges heat with the old air to achieve initial heating. Subsequently, the fresh air enters the outer casing through the fresh air delivery pipe, is heated a second time by the heating pipe, and is then delivered into the room. In summer, when the outdoor hot air encounters the cold water heating pipe, water droplets will condense. The first motor drives the lead screw to move the slider and the squeegee to remove the water stains and prevent the heating pipe from rusting. In addition, the air pump inflates the air bag through the air pump pipe, which can flexibly control the flow rate of the fresh air delivery pipe and the old air delivery pipe to meet different user needs and achieve dynamic adjustment of the fresh air and exhaust air flow rates, thereby improving the system's energy efficiency and user experience. In the aforementioned patent, multiple shell structure components are used in combination for heat exchange. The structure is large and complex, and the heat is fused under flow, making it easy for indoor heat to dissipate, which makes it impossible to use for efficient and direct heat exchange. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a heat recovery reheat coil for a fan, which solves the problems of large size and high cost of fresh air heat exchange equipment, and the inability to perform heat exchange efficiently and directly.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a heat recovery reheat coil for a fan, comprising a heat exchange box and a cover plate. An exhaust fan is fixedly connected to the inner surface of the outer end of the heat exchange box, and exhaust ports are provided on both sides of the outer end of the heat exchange box. An intake fan is fixedly connected to the inner surface of the inner end of the heat exchange box, and an intake port is provided at the lower end of the intake fan. An intake pipe shell is provided at the lower end of the intake port. An outdoor air separation flow chamber is fixedly connected to the inner surface of the heat exchange box. A first partition plate and a second partition plate are provided inside the outdoor air separation flow chamber. A first air guide port is provided on the surface of the first partition plate, and a second air guide port is provided on the surface of the second partition plate. A square air guide pipe is fixedly connected between the outdoor air separation flow chamber and the inner end of the heat exchange box.

[0005] Preferably, the first air guide is disposed on one side surface of the first partition plate, and the second air guide is disposed on the other side outer surface of the second partition plate, with the first air guide and the second air guide being staggered.

[0006] Preferably, the exhaust fan is an axial flow fan, and the intake fan is a turbine fan.

[0007] Preferably, the square air guide tube is disposed on the inner surface of the air extraction tube opening.

[0008] Preferably, the inner surface of the heat exchange box is fixedly connected with a bend guide plate, and the bend guide plate is distributed on the inner surface of the left and right ends of the heat exchange box.

[0009] Preferably, the outdoor air separation flow chamber, the first partition plate, and the second partition plate are all made of aluminum plate with a thickness of no more than two millimeters.

[0010] Preferably, the square air guide tube is made of aluminum, and the thickness of the plate cross-section of the square air guide tube is one millimeter.

[0011] Compared with the prior art, this utility model provides a heat recovery reheat coil for a fan, which has the following beneficial effects: By adopting a disc-type flow chamber structure with centralized heat exchange box, when outdoor cold air enters, it flows evenly in the flow chamber separated by outdoor air. Surrounded by the hot air vented from the room, the cold air can be quickly heated by heat exchange, which improves efficiency. The overall structure is small in size, compact and low in cost. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure; Figure 2 This is the first sectional view of the overall structure; Figure 3 This is a schematic diagram of the second cross-section of the overall structure; Figure 4 This is a side view of the overall structure; Figure 5 This is a schematic diagram showing the distribution relationship between the intake fan and the intake pipe shell.

[0013] In the diagram: 1 heat exchange box, 2 exhaust fan, 3 exhaust pipe, 4 intake fan, 40 intake pipe, 41 intake pipe shell, 5 outdoor air separation flow chamber, 6 first partition plate, 7 second partition plate, 60 first air guide, 70 second air guide, 9 square air guide pipe, 10 angled guide pipe, 100 cover plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] This utility model provides a technical solution: a heat recovery reheat coil for a fan, such as... Figure 1-5 The system includes a heat exchange box 1, a cover plate 100, and an exhaust fan 2 fixedly connected to the inner surface of the outer end of the heat exchange box 1 and the lower heat exchange box 1. Exhaust pipe ports 3 are provided on both sides of the outer end of the heat exchange box 1. An intake fan 4 is fixedly connected to the inner surface of the inner end of the heat exchange box 1. An intake pipe port 40 is provided at the lower end of the intake fan 4, and an intake pipe shell 41 is provided at the lower end of the intake pipe port 40. An outdoor air separation flow chamber 5 is fixedly connected to the inner surface of the heat exchange box 1. The cover plate 100 is fixedly placed on the surface of the outdoor air separation flow chamber 5 and is fixed to the surface of the heat exchange box 1 by screws. The flow chamber 5 is equipped with a first partition plate 6 and a second partition plate 7. The surface of the first partition plate 6 is provided with a first air guide 60, and the surface of the second partition plate 7 is provided with a second air guide 70. The outdoor air flow chamber 5 is fixedly connected to the inner end of the heat exchange box 1 with a square air guide pipe 9. By adopting a disc-type flow chamber structure that is centrally set in the heat exchange box, when the outdoor cold air enters, it flows evenly in the outdoor air flow chamber. By being surrounded by the hot air vented from the room, the cold air can be quickly heated by heat exchange, which improves efficiency. The overall structure is small in size, compact and low in cost. The first air guide 60 is located on one side surface of the first partition plate 6, and the second air guide 70 is located on the other side outer surface of the second partition plate 7. The first air guide 60 and the second air guide 70 are staggered. When external cold air is introduced, it can be blocked by the partition plate, which can reduce the air flow speed. When the air intake fan 4 blows out air, it can only be discharged from the other side by the partition plate. It can carry the motor heat of the air intake fan 4 and discharge it to the first air guide 60. It is introduced through the first air guide 60 on one side and discharged through the second air guide 70 on the other side, forming a circular flow and forming a disc-shaped tube chamber airflow, which facilitates heat exchange with indoor hot air and improves efficiency. The exhaust fan 2 is an axial flow fan, which facilitates the extraction and discharge of air. The intake fan 4 is a turbine fan, which facilitates the intake and introduction of air. Its turbine fan has high air pressure, and the pressure is high when the air is introduced into the room, which facilitates the airflow to pass through the obstruction. The square air guide tube 9 is correspondingly installed on the inner surface of the air extraction port 3; when the air extraction port 3 draws in indoor hot air, it can be aligned with the square air guide tube 9 to guide the flow, which can exchange heat when outdoor air is discharged, heat the air, and facilitate heat exchange and recovery. An angled guide plate 10 is fixedly connected to the inner surface of the inner end of the heat exchange box 1. The angled guide plate 10 is distributed on the inner surface of the left and right ends of the heat exchange box 1. When the indoor hot air is extracted, it can be guided by the angled guide plate 10. The hot air can flow around the outdoor air separation flow chamber 5 and be discharged to heat the outdoor air entering the outdoor air separation flow chamber 5. The heating efficiency is high. The outdoor air separation flow chamber 5, the first partition plate 6, and the second partition plate 7 are all made of aluminum plates with a thickness of no more than two millimeters; the square air guide tube 9 is made of aluminum with a plate cross-section thickness of one millimeter; aluminum has good thermal conductivity, and its hot air can quickly heat the inner wall, and its cold air can quickly exchange heat and heat when it enters the air guide flow. The working principle of this device is as follows: During use, an exhaust fan 2 is fixedly connected to the inner surface of the outer end of the heat exchange box 1. Exhaust ports 3 are located on both sides of the outer end of the heat exchange box 1. The exhaust fan 2 is an axial flow fan, facilitating air extraction and removal, and can draw out hot air from the room. An intake fan 4 is fixedly connected to the inner surface of the inner end of the heat exchange box 1. An intake port 40 is located at the lower end of the intake fan 4, and an intake pipe shell 41 is located at the lower end of the intake port 40. During use, air is blown by the intake fan 4, drawing in external air through the intake pipe shell 41. An outdoor air separation flow chamber 5 is fixedly connected to the inner surface of the heat exchange box 1. Cold air is introduced into the outdoor air separation flow chamber 5, and then... There is a first partition plate 6 and a second partition plate 7. The surface of the first partition plate 6 is provided with a first air guide 60, and the surface of the second partition plate 7 is provided with a second air guide 70. The first air guide 60 and the second air guide 70 are staggered. When external cold air is introduced, it can be blocked by the partition plate, which can reduce the air flow speed. When the air intake fan 4 blows out air, it can only be discharged from the other side by the partition plate. It can carry the motor heat of the air intake fan 4 and discharge it to the first air guide 60. It is introduced through the first air guide 60 on one side and discharged through the second air guide 70 on the other side, forming a circular flow, forming a disc-shaped tube chamber air flow, which facilitates heat exchange with indoor hot air and improves efficiency. The bottom of the outdoor air separation flow chamber 5 is equipped with a square air guide pipe 9, which can export the air exchanged from the outside. The square air guide pipe 9 is correspondingly set on the inner surface of the air extraction port 3. When the air extraction port 3 draws in indoor hot air, it can be aligned with the square air guide pipe 9 to guide the air flow. It can exchange heat when the outdoor air is exported, heat the air, and improve the heat exchange efficiency.

[0016] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat recovery reheat coil for a fan, comprising a heat exchange box (1) and a cover plate (100), characterized in that: An exhaust fan (2) is fixedly connected to the inner surface of the outer end of the heat exchange box (1). An exhaust port (3) is provided on both sides of the outer end of the heat exchange box (1). An intake fan (4) is fixedly connected to the inner surface of the inner end of the heat exchange box (1). An intake port (40) is provided at the lower end of the intake fan (4). An intake pipe shell (41) is provided at the lower end of the intake port (40). An outdoor air separation flow chamber (5) is fixedly connected to the inner surface of the heat exchange box (1). A first partition plate (6) and a second partition plate (7) are provided inside the outdoor air separation flow chamber (5). A first air guide port (60) is provided on the surface of the first partition plate (6). A second air guide port (70) is provided on the surface of the second partition plate (7). A square air guide pipe (9) is fixedly connected to the inner end of the outdoor air separation flow chamber (5) and the heat exchange box (1).

2. The heat recovery reheat coil for a fan according to claim 1, characterized in that: The first air guide (60) is located on one side surface of the first partition plate (6), and the second air guide (70) is located on the other side outer surface of the second partition plate (7). The first air guide (60) and the second air guide (70) are staggered.

3. The heat recovery reheat coil for a fan according to claim 1, characterized in that: The exhaust fan (2) is an axial flow fan, and the intake fan (4) is a turbine fan.

4. The heat recovery reheat coil for a fan according to claim 1, characterized in that: The square air guide tube (9) is correspondingly set on the inner surface of the air extraction tube opening (3).

5. A heat recovery reheat coil for a fan according to claim 1, characterized in that: An angled guide plate (10) is fixedly connected to the inner surface of the inner end of the heat exchange box (1). The angled guide plate (10) is distributed on the inner surface of the left and right ends of the heat exchange box (1).

6. The heat recovery reheat coil for a fan according to claim 1, characterized in that: The outdoor air separation flow chamber (5), the first separation plate (6), and the second separation plate (7) are all made of aluminum plates with a thickness of no more than two millimeters.

7. The heat recovery reheat coil for a fan according to claim 1, characterized in that: The square air guide tube (9) is made of aluminum, and the thickness of the plate section of the square air guide tube (9) is one millimeter.

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