Air handling unit

Abstract

The utility model relates to an air handling unit which comprises a unit shell, an evaporator is arranged in the unit shell and divides the unit shell into a left part and a right part, a high-static-pressure air supply fan is installed in the unit shell located at the left part, and an air return filter screen is installed in the unit shell located at the left end part. The evaporator is responsible for heating or cooling air, the high-static-pressure air supply fan is responsible for uniformly supplying the heated or cooled air into a room, and the return air filter screen ensures that the air entering the unit is clean, further purifies the air and provides clean air for the evaporator; a constant-air-volume exhaust fan and a sensible heat exchanger on the left part of the unit shell are used for carrying out heat exchange treatment on exhausted air, part of heat or cold is recycled, and the energy utilization efficiency is improved; and the fresh air filter screen and the fresh air fan are responsible for introducing fresh air and carrying out the same heat exchange treatment on the fresh air, so that the indoor air quality is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of air handling technology and relates to an air handling unit. Background Technology

[0002] Air handling units are widely used to regulate indoor air quality, temperature and humidity. However, existing air handling systems have a significant problem during operation: the lack of an effective air heat recovery mechanism. Simply put, these systems do not make full use of the latent and sensible heat in the air exhausted from the room, resulting in a large amount of existing indoor energy resources being wasted along with the exhaust air. Utility Model Content

[0003] The purpose of this invention is to provide an air handling unit that can solve the problems mentioned in the background art.

[0004] According to the technical solution provided by this utility model: an air handling unit includes a unit shell, an evaporator is provided inside the unit shell, the evaporator divides the unit shell into left and right parts, a high static pressure air supply fan is installed in the unit shell located in the left part, and a return air filter is installed in the unit shell located in the left end part.

[0005] Preferably, the return air filter filters the air to send it into the evaporator for heating and cooling, and finally the air is transported by a high static pressure blower.

[0006] Preferably, the left part of the unit casing is equipped with a constant air volume exhaust fan and a sensible heat exchanger; the exhaust fan takes the air that has been treated by the filter screen and then passes it through the sensible heat exchanger to exchange the sensible heat in the return air. The heat-treated air is then discharged to the outside by the constant air volume exhaust fan.

[0007] Preferably, the left part of the unit casing is equipped with a fresh air filter and a fresh air fan; the fresh air fan takes the air treated by the fresh air filter and then passes it through a sensible heat exchanger to exchange the sensible heat in the fresh air, and the heat-treated air is sent indoors by the fresh air fan.

[0008] Preferably, the left end of the unit casing has a fresh air end and an exhaust air end; the right end of the unit casing has an air supply end; and the upper end of the unit casing near the left side has a return air end.

[0009] Preferably, connecting rods are symmetrically installed inside the unit casing, and the connecting rods are symmetrically distributed on both sides of the evaporator.

[0010] The air handling unit provided by this utility model has the following advantages:

[0011] 1. The evaporator is responsible for heating or cooling the air. The high static pressure air supply fan is responsible for evenly delivering the heated or cooled air into the room. The return air filter ensures that the air entering the unit is clean and further purifies the air to provide clean air for the evaporator. The constant air volume exhaust fan and sensible heat exchanger on the left side of the unit shell perform heat exchange treatment on the exhaust air, recovering some heat or cold energy and improving energy utilization efficiency. The fresh air filter and fresh air fan are responsible for introducing fresh air and performing the same heat exchange treatment on it to ensure indoor air quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention.

[0013] Figure 2 This is an indoor air circulation diagram of this utility model.

[0014] Figure 3 This is a diagram of the indoor and outdoor air supply and exhaust heat recovery cycle of this utility model.

[0015] In the diagram: 1. Fresh air filter; 2. Constant air volume exhaust fan; 3. Sensible heat exchanger; 4. Return air filter; 5. Fresh air fan; 6. Evaporator; 7. High static pressure supply fan; 8. Connecting rod; 9. Unit casing; 10. Fresh air end; 11. Exhaust air end; 12. Return air end; 13. Supply air end. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] like Figure 1-3As shown, this utility model is an air handling unit, including a unit housing 9. An evaporator 6 is installed inside the unit housing 9. The evaporator 6 divides the unit housing 9 into left and right parts. A high static pressure air supply fan 7 is installed in the left part of the unit housing 9, and a return air filter 4 is installed in the left end of the unit housing 9. The return air filter 4 filters the air to send the air into the evaporator 6 for heating and cooling, and finally the air is transported by the high static pressure air supply fan 7.

[0019] Evaporator 6 is responsible for heating or cooling the air, high static pressure air supply fan 7 is responsible for evenly delivering the heated or cooled air into the room, return air filter 4 ensures that the air entering the unit is clean and further purifies the air to provide clean air for evaporator 6; constant air volume exhaust fan 2 and sensible heat exchanger 3 on the left side of the unit casing 9 perform heat exchange treatment on the exhaust air, recover some heat or cold, and improve energy utilization efficiency; fresh air filter 1 and fresh air fan 5 are responsible for introducing fresh air and performing the same heat exchange treatment on it to ensure indoor air quality.

[0020] The left side of the unit casing 9 is equipped with a constant air volume exhaust fan 2 and a sensible heat exchanger 3; air enters the filter screen 4 from the return air end 12; the exhaust fan 2 takes the air treated by the filter screen 4 and then passes it through the sensible heat exchanger 3 to exchange the sensible heat in the return air. The heat-treated air is then discharged to the outside from the air supply end 13 via the constant air volume exhaust fan 2.

[0021] The left side of the unit casing 9 is equipped with a fresh air filter 1 and a fresh air fan 5. The fresh air fan 5 takes the air that has been treated by the fresh air filter 1 and then passes it through the sensible heat exchanger 3. The air enters from the fresh air end 10 and exchanges the sensible heat in the fresh air. The heat-treated air is then sent to the room by the fresh air fan 5.

[0022] The above one-supply-one-exhaust system realizes a heat recovery cycle. The supply and exhaust fans use a constant air volume to ensure constant sensible heat recovery efficiency.

[0023] The left end of the unit casing 9 has a fresh air end 10 and an exhaust end 11; the right end of the unit casing 9 has an air supply end 13; and the upper end of the unit casing 9 near the left side has a return air end 12.

[0024] Connecting rods 8 are symmetrically installed inside the unit casing 9, and the connecting rods 8 are symmetrically distributed on both sides of the evaporator 6; the connecting rods 8 ensure the stability and structural strength of the unit casing 9 during operation.

[0025] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. An air handling unit, characterized in that, Includes a unit housing (9), inside which is provided an evaporator (6), the evaporator (6) divides the unit housing (9) into left and right parts, a high static pressure air supply fan (7) is installed in the unit housing (9) located on the left part, and a return air filter (4) is installed in the unit housing (9) located on the left end.

2. An air handling unit as described in claim 1, characterized in that: The return air filter (4) filters the air to send it into the evaporator (6) for heating and cooling, and finally it is transported by the high static pressure blower (7).

3. An air handling unit as described in claim 2, characterized in that: The left part of the unit casing (9) is equipped with a constant air volume exhaust fan (2) and a sensible heat exchanger (3); the exhaust fan (2) takes the air that has been treated by the filter screen (4) and then passes it through the sensible heat exchanger (3) to exchange the sensible heat in the return air. The heat-treated air is then discharged to the outside through the constant air volume exhaust fan (2).

4. An air handling unit as described in claim 3, characterized in that: The left part of the unit casing (9) is equipped with a fresh air filter (1) and a fresh air fan (5); the fresh air fan (5) takes the air that has been treated by the fresh air filter (1) and then passes it through the sensible heat exchanger (3) to exchange the sensible heat in the fresh air. The heat-treated air is then sent to the room by the fresh air fan (5).

5. An air handling unit as described in claim 4, characterized in that: The unit casing (9) has a fresh air end (10) and an exhaust end (11) on the left end; an air supply end (13) on the right end; and a return air end (12) near the left side of the upper end of the unit casing (9).

6. An air handling unit as described in claim 5, characterized in that: Connecting rods (8) are symmetrically installed inside the unit casing (9), and the connecting rods (8) are symmetrically distributed on both sides of the evaporator (6).

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