Fresh air unit and air conditioner room

Abstract

The utility model relates to the technical field of fresh air, and provides a fresh air unit which comprises a plurality of fresh air small chambers capable of being assembled, each fresh air small chamber comprises a box body, and a fresh air section, a filtering section, a heating section and a fan section are sequentially arranged in each box body in the airflow direction. The box body is provided with an inlet allowing air to enter and an outlet allowing fresh air to be exhausted, the fresh air section is communicated with the inlet, and the fan section is communicated with the outlet. The utility model further provides an air conditioner room which comprises a room body and the fresh air unit, and the fresh air unit is arranged in the room body. According to the utility model, a plurality of fresh air chambers which can be assembled are adopted, so that a larger amount of fresh air can be conveyed, and the phenomenon of wind robbing existing in a tail-end air conditioning box in the prior art is solved; the fresh air small chamber is directly designed in the air conditioner room, air can be filtered, and various problems caused by the fact that the number of filters and air conditioner pipelines is large are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air, in particular to a fresh air unit. Background Art

[0002] There are currently two common ways to handle fresh air in an air conditioning system:

[0003] (1) Centralized treatment using a dedicated fresh air air conditioning unit;

[0004] (2) Decentralized treatment using terminal air conditioning units.

[0005] When adopting solution (1), fresh air is sent to each system air handling unit through the fresh air duct of the air conditioning unit, and there is a phenomenon of air robbing to varying degrees in the terminal air handling unit. The fresh air duct, air volume distribution and control system are relatively complex.

[0006] When adopting solution (2), the filters of each air handling unit are arranged dispersedly, and the later maintenance cost is relatively high. There are many fresh air ducts in the machine room, occupying a lot of space. Content of the Utility Model

[0007] The purpose of the utility model is to provide a fresh air unit, which can at least solve some defects in the prior art.

[0008] To achieve the above purpose, an embodiment of the utility model provides the following technical solution: A fresh air unit includes a plurality of fresh air compartments that can be assembled. Each fresh air compartment includes a box body. Inside the box body, a fresh air section, a filtration section, a heating section and a fan section are sequentially arranged along the air flow direction. An inlet for air to enter and an outlet for fresh air to be discharged are provided on the box body. The fresh air section is communicated with the inlet, and the fan section is communicated with the outlet.

[0009] Further, a wind guiding section is also arranged inside the box body for guiding the fresh air heated by the heating section to the outlet.

[0010] Further, the fresh air compartments are assembled side by side.

[0011] Further, the filtration section includes a filtration chamber and a rolling filter arranged in the filtration chamber. The air outlet of the fresh air section is butted against the filtration chamber.

[0012] Further, an installation opening for the rolling filter is provided on one side of the filtration chamber, and a disassembly opening for the rolling filter is provided on the other side.

[0013] Further, the heating section includes a heating chamber and a hot water heating coil or a steam heating coil arranged in the heating chamber. The air outlet of the filtration section is butted against the heating chamber.

[0014] Further, the fan section includes a fan wall for drawing in air, and fans are embedded in the fan wall.

[0015] An embodiment of the present invention provides the following technical solution: An air-conditioning machine room includes a machine room and further includes the above-mentioned fresh air unit, and the fresh air unit is arranged in the machine room.

[0016] Further, the fresh air unit is installed on the floor in the machine room or hoisted at the top of the machine room.

[0017] Further, a differential pressure sensor and a controller are also arranged in the machine room. The controller receives the differential pressure data fed back by the differential pressure sensor and controls the operating frequency of the fan section.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. By adopting a plurality of assembled fresh air compartments, a larger amount of fresh air can be delivered, solving the problem of air snatching existing in the terminal air handling unit in the prior art.

[0020] 2. By directly designing the fresh air compartment in the air-conditioning machine room, the air can be filtered, avoiding various problems brought by designing filters in the air handling unit and having a large number of air-conditioning pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a plurality of fresh air compartments of an air-conditioning machine room provided by an embodiment of the present invention assembled side by side;

[0022] Figure 2 It is an internal structure schematic diagram of a fresh air compartment of an air-conditioning machine room provided by an embodiment of the present invention;

[0023] In the reference numerals: 1 - fresh air compartment; 10 - box body; 11 - fresh air section; 12 - filtration section; 120 - installation opening; 121 - disassembly opening; 13 - heating section; 14 - fan section; 15 - air guiding section; 16 - inlet; 17 - outlet; 2 - machine room. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figure 1 and Figure 2, an embodiment of the present utility model provides a fresh air unit, which includes a plurality of assemblable fresh air compartments 1. Each fresh air compartment 1 includes a box body 10. Inside the box body 10, a fresh air section 11, a filtering section 12, a heating section 13, and a fan section 14 are sequentially arranged along the air flow direction. An inlet 16 for air to enter and an outlet 17 for fresh air to be discharged are provided on the box body 10. The fresh air section 11 communicates with the inlet 16, and the fan section 14 communicates with the outlet 17. In this embodiment, by using a plurality of assemblable fresh air compartments 1, a larger amount of fresh air can be transported, solving the air robbing phenomenon existing in the existing terminal air handling units. Specifically, the internal structure of the fresh air compartment 1 includes a fresh air section 11, a filtering section 12, a heating section 13, and a fan section 14. Outdoor air can enter the fresh air section 11 from the inlet 16, then enter the filtering section 12 for filtering, and then enter the heating section 13 to heat the filtered air as needed, and then be pumped out to the outlet 17 through the fan section 14 for discharge. Each fresh air compartment 1 can work synchronously or selectively according to needs.

[0026] As an optimized solution of the embodiment of the present utility model, please refer to Figure 1 and Figure 2 , a wind guiding section 15 is further provided inside the box body 10 for guiding the fresh air heated by the heating section 13 to the outlet 17. In this embodiment, designing the wind guiding section 15 can guide the air flow to turn, so that the outlet 17 can be designed at different positions of the box body 10 as needed, and the air flow can be turned and guided through the wind guiding section 15. Preferably, the wind guiding section 15 includes a wind guiding cavity, and the wind guiding cavity can be designed into air ducts of different shapes, so as to play a role in guiding the air flow.

[0027] As an optimized solution of the embodiment of the present utility model, please refer to Figure 1 and Figure 2 , the fresh air compartments 1 are assembled side by side. In this embodiment, the fresh air compartments 1 can be assembled side by side. Of course, if there are more units, a square-shaped assembly or other forms of assembly can also be used, and this embodiment does not limit this. The assembly can be carried out according to the space in the air conditioning machine room. Preferably, the assembly method can adopt hinge assembly or hinge joint assembly, aiming at detachable connection to facilitate adding or reducing the fresh air compartments 1 according to needs. Preferably, a clamping structure is provided on the box body 10 of the fresh air compartment 1, and the assembly method adopts a clamping method for assembly, such as designing a groove and ridge structure on the box body 10 and assembling by clamping, which is also feasible.

[0028] As an optimized solution of the embodiment of the present utility model, please refer to Figure 1 and Figure 2, the filtering section 12 includes a filtering chamber and a rolling curtain filter disposed in the filtering chamber, and the air outlet of the fresh air section 11 is docked with the filtering chamber. In this embodiment, the filtering method can adopt an existing rolling curtain filter. Preferably, an installation opening 120 for the rolling curtain filter is provided on one side of the filtering chamber, and a disassembly opening 121 for the rolling curtain filter is provided on the other side. The installation opening 120 and the disassembly opening 121 can be designed on the filtering chamber, which facilitates the replacement of the rolling curtain filter. Working principle of automatic replacement of the rolling curtain filter: (1) The new filter material is installed in the upper feeding box. When the air inlet of the air conditioner passes through the rolling curtain filter with high-concentration dust-containing air, the pressure difference before and after the filter gradually rises as the dust filtration increases. (2) When the resistance of the filter rises to the set final resistance value, the differential pressure switch starts to move. (3) After the controller receives the operation signal, it immediately turns on the power supply of the motor and automatically starts the motor. (4) The rotation of the motor drives the reel in the lower material box to rotate, thereby rolling up the dirty filter material, and at the same time, the clean filter material is replaced on the filtering section. (5) The displacement of the filter material during operation is controlled by a displacement sensor. When the filter material runs to the preset length in the controller, the controller will give a signal to the motor to cut off the power supply and the motor stops running. Of course, the manual replacement method is also feasible.

[0029] As an optimized solution of the embodiment of the present invention, please refer to Figure 1 and Figure 2 , the heating section 13 includes a heating chamber and a hot water heating coil or a steam heating coil disposed in the heating chamber, and the air outlet of the filtering section 12 is docked with the heating chamber. In this embodiment, the heating method can adopt hot water (60 / 50 °C) heating or steam (0.3 MPa) heating. The air can be heated after passing through the heating chamber. As for how many degrees to heat, the temperature of the heating coil can be adjusted according to needs. For example, the fresh air can be heated to 5-10 °C.

[0030] As an optimized solution of the embodiment of the present invention, please refer to Figure 1 and Figure 2 , the fan section 14 includes a fan wall for guiding air, and fans are embedded in the fan wall. In this embodiment, the fans in the fan section 14 are used to overcome the resistance of the fresh air duct, filter, and heating coil, and send the fresh air into the air conditioning machine room. An EC fan wall can be selected to save the space of the box body 10 and at the same time expand the functions of the box body 10.

[0031] Please refer to Figure 1 and Figure 2 , the embodiment of the present invention provides an air conditioning machine room, including a machine room 2, and further including the above-mentioned fresh air unit, and the fresh air unit is disposed in the machine room 2. In this embodiment, using the above-mentioned fresh air unit in the air conditioning machine room can filter the air and avoid various problems caused by the design of filters in the air conditioning box and multiple air conditioning pipes.

[0032] Please refer to Figure 1 and Figure 2 , the fresh air unit is installed on the ground in the machine room 2 or hoisted on the top of the machine room 2. In this embodiment, the fresh air unit can be installed on the ground or hoisted in the machine room 2. Specifically, it can be determined according to the height space in the machine room 2. If it is sufficient, it can be hoisted to save space.

[0033] Please refer to Figure 1 and Figure 2 , a differential pressure sensor and a controller are further provided in the machine room 2. The controller receives the differential pressure data fed back by the differential pressure sensor and controls the operating frequency of the fan section 14. In this embodiment, by setting differential pressure sensors in the air conditioning machine room and the connected aisle, the differential pressure set value is 0-5 Pa. The operating frequency of the fresh air fan is controlled by the differential pressure in the machine room 2 to ensure that the fresh air volume is always matched with the demand in real time.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fresh air unit, characterized in that: It includes a plurality of new air compartments that can be assembled. Each of the new air compartments includes a box body, and inside the box body, there are successively arranged a fresh air section, a filtration section, a heating section, and a fan section along the air flow direction. An inlet for air to enter and an outlet for fresh air to discharge are provided on the box body. The fresh air section is connected to the inlet, and the fan section is connected to the outlet.

2. The fresh air unit according to claim 1, wherein: A wind guiding section for guiding the heated fresh air in the heating section to the outlet is further provided inside the box body.

3. The fresh air unit according to claim 1, wherein: The new air compartments are assembled side by side.

4. The fresh air unit according to claim 1, characterized in that: The filtration section includes a filtration chamber and a rolling curtain filter arranged in the filtration chamber. The air outlet of the fresh air section is butted against the filtration chamber.

5. The fresh air unit according to claim 4, characterized in that: An installation opening for the rolling curtain filter is provided on one side of the filtration chamber, and a disassembly opening for the rolling curtain filter is provided on the other side.

6. The fresh air unit according to claim 1, wherein: The heating section includes a heating chamber and a hot water heating coil or a steam heating coil arranged in the heating chamber. The air outlet of the filtration section is butted against the heating chamber.

7. The fresh air unit according to claim 1, characterized in that: The fan section includes a fan wall for drawing air, and fans are embedded in the fan wall.

8. An air conditioning machine room, including a machine room, characterized in that: It further includes a new air unit as described in any one of claims 1 - 7, and the new air unit is arranged in the machine room.

9. The air-conditioning machine room according to claim 8, characterized in that: The new air unit is installed on the ground in the machine room or hoisted at the top of the machine room.

10. The air-conditioning machine room according to claim 8, characterized in that: A differential pressure sensor and a controller are further provided in the machine room. The controller receives the differential pressure data fed back by the differential pressure sensor and controls the operating frequency of the fan section.

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