Building fresh air system

Abstract

The utility model discloses a building fresh air system, and relates to the technical field of air purification, the building fresh air system comprises a partition plate arranged indoors, an air exchange space used for air inlet and exhaust is formed on one side of the partition plate, an indoor space is formed on the other side of the partition plate, and an air draft device is arranged in the air exchange space; the partition plate is provided with a first air inlet and a first air outlet, the air inlet end of the air draft device is connected with the first air outlet, the air outlet end of the air draft device is located in the ventilation space, the building outer wall is provided with a second air inlet and a second air outlet, the second air outlet is communicated with the ventilation space, and the second air outlet is communicated with the ventilation space. An air inlet pipeline is arranged between the second air inlet and the first air inlet, the part, located in the cold air space, of the air inlet pipeline is arranged in a winding mode, the influence of air exchange on the indoor temperature can be reduced, and energy consumption is reduced.

Description

Technical Field

[0001] This application relates to the technical field of air purification, and particularly to a building fresh air system. Background Art

[0002] The fresh air system is mainly used to provide fresh air indoors, and at the same time remove the polluted air indoors to ensure the indoor air quality.

[0003] The Chinese utility model patent with the publication number CN209147346U discloses a fresh air system, which includes an air quality sensor installed indoors, a filter installed on the window, an air outlet communicating with the interior, and an air extraction device connected to the air outlet. A partition is provided at the lower end of the air extraction device, and the air outlet is opened on the partition; the air extraction device is used to extract the indoor air outdoors, so that the air pressure indoors is less than the atmospheric pressure outside, forming a negative pressure, so that the outdoor air flows into the room. During the flow, the outdoor air is filtered by the filter and then flows into the room, thereby playing a role in purifying the indoor air.

[0004] In view of the above related technologies, when the temperature difference between indoors and outdoors is large, directly pumping outdoor air into the room will cause changes in the indoor temperature, so it is necessary to turn on the corresponding refrigeration equipment or heating equipment indoors. Therefore, although this method can replace the indoor air, it will also consume more energy. Utility Model Content

[0005] In order to reduce the impact of air change on the indoor temperature and reduce energy consumption, this application provides a building fresh air system.

[0006] This application provides a building fresh air system, adopting the following technical solutions:

[0007] A building fresh air system includes a partition arranged indoors. On one side of the partition, a ventilation space for air intake and exhaust is formed, and on the other side of the partition, an indoor space is formed. An air extraction device is arranged in the ventilation space. A first air inlet and a first air outlet are opened on the partition. The air inlet end of the air extraction device is connected to the first air outlet, and the air outlet end of the air extraction device is located in the ventilation space. A second air inlet and a second air outlet are opened on the building exterior wall. The second air outlet is communicated with the ventilation space, and an air inlet pipe is arranged between the second air inlet and the first air inlet. The part of the air inlet pipe located in the ventilation space is arranged in a meandering manner.

[0008] By adopting the above technical solution, the exhaust device sucks the indoor air into the ventilation space and then sends it outdoors through the second air outlet; at the same time, the fresh air outdoors enters the air inlet pipe through the second air inlet, and then exchanges heat with the air remaining in the ventilation space along the bent part of the air inlet pipe, so that the temperature of the air entering the air inlet pipe from outdoors can approach the temperature in the indoor space. When the fresh air enters the indoor space from the first air inlet, it can not only circulate and replace the indoor air, but also reduce the change of the indoor temperature, reduce the use of refrigeration or heating equipment, and reduce energy consumption.

[0009] Optionally, a diffuser pipe is provided at the first air inlet. The diffuser pipe extends along the width direction of the partition. One side of the diffuser pipe is communicated with the air inlet pipe, and air outlet holes are formed on the other side of the diffuser pipe. The air outlet holes extend along the length direction of the diffuser pipe.

[0010] By adopting the above technical solution, one side of the diffuser pipe is communicated with the air inlet pipe, and air outlet holes are formed on the other side, so that the fresh air can be evenly dispersed into the indoor space, avoiding the situation of too large or too small local wind force, and improving the comfort of the indoor environment.

[0011] Optionally, the position of the pipe orifice of the air inlet pipe is staggered from the air outlet holes.

[0012] By adopting the above technical solution, since the pipe orifice of the air inlet pipe is staggered from the air outlet holes, this can avoid the discomfort caused by direct blowing on the human body and provide a more comfortable indoor environment.

[0013] Optionally, there are two air inlet pipes. The air inlet pipes are respectively connected to both ends of the diffuser pipe, and two second air inlets are correspondingly provided for the air inlet pipes.

[0014] By adopting the above technical solution, the design of the two air inlet pipes enables air to enter the diffuser pipe from two directions, increasing the air inlet efficiency, balancing the air pressure through the two air inlets, avoiding the problem of uneven air pressure that may be caused by a single air inlet, and ensuring the uniform distribution of air in the diffuser pipe.

[0015] Optionally, a wind guiding plate is provided on the side of the diffuser pipe facing the indoor space. After the fresh air outdoors blows out along the air outlet holes of the diffuser pipe, it can enter the indoor space along the horizontal direction under the guidance of the wind guiding plate.

[0016] By adopting the above technical solution, the setting of the wind guiding plate ensures that the outdoor fresh air evenly enters the indoor space along the horizontal direction, avoiding the uneven distribution of indoor temperature and discomfort caused by direct upward or downward air supply. At the same time, horizontal air supply is more conducive to mixing with indoor air, forming a more uniform and comfortable indoor air flow environment.

[0017] Optionally, fixing bolts are provided on the air deflector, and the fixing bolts can pass through the air deflector and be threadedly connected to the side wall of the air dispersion pipe.

[0018] By adopting the above technical solution, the design of the fixing bolts simplifies and speeds up the installation process of the air deflector. The installation can be completed simply by aligning the fixing bolts with the threaded holes of the air dispersion pipe and tightening them.

[0019] Optionally, a connecting pipe for inserting the air inlet pipe is provided on the side wall of the air dispersion pipe, and a locking member for locking the air inlet pipe is provided on the connecting pipe.

[0020] By adopting the above technical solution, the design of the connecting pipe and the locking member enables the air inlet pipe to be quickly and easily inserted into the air dispersion pipe, improving the installation efficiency.

[0021] Optionally, a socket for inserting the air inlet pipe is provided on the inner side wall of one end of the connecting pipe away from the air dispersion pipe.

[0022] By adopting the above technical solution, the socket provides a stable support point for the air inlet pipe, ensuring the stability and reliability of the connection.

[0023] Optionally, the locking member includes two connecting half-rings, a locking bolt and a locking nut for fixing the two ends of the two connecting half-rings. The locking bolt can pass through the two connecting half-rings in sequence and be threadedly connected to the locking nut.

[0024] By adopting the above technical solution, the two connecting half-rings can be quickly locked together through the threaded connection of the locking bolt and the locking nut, improving the installation efficiency; the design of the connecting half-rings enables the locking member to tightly wrap around the air inlet pipe, and the threaded connection of the locking bolt and the locking nut provides a reliable fixing effect, ensuring a firm and reliable connection.

[0025] Optionally, dust-proof nets are provided at both the second air outlet and the second air inlet, and an exhaust fan is provided at the second air inlet. The exhaust fan is arranged between the dust-proof net and the air inlet pipe.

[0026] By adopting the above technical solution, the dust-proof net can effectively prevent external dust and debris from entering the interior of the device, keeping the device clean and extending its service life; the arrangement of the exhaust fan can accelerate air flow and improve the air intake and ventilation efficiency.

[0027] In summary, the present application has at least the following beneficial effects:

[0028] 1. By pumping indoor air into the ventilation space and arranging the air inlet duct in a winding manner within the ventilation space, it is possible to make the air entering the air inlet duct from the outside have a temperature close to that of the indoor space after heat exchange, so that when the fresh air system is in use, the use of indoor cooling equipment or heating equipment can be reduced, and energy consumption can be lowered.

[0029] 2. By providing a diffuser duct and a wind deflector, the fresh air is horizontally sent into the room, the air diffusion is more uniform, and the direct blowing of air is avoided, making the indoor air flow environment more comfortable. Description of the Drawings

[0030] Figure 1 is a schematic structural diagram of an embodiment of the present application;

[0031] Figure 2 is an exploded structural diagram of the dust-proof net;

[0032] Figure 3 is a structural diagram of the diffuser duct;

[0033] Figure 4 is an exploded structural diagram of the locking member.

[0034] Description of the reference numerals: 1, partition; 11, first air inlet; 12, first air outlet; 2, ventilation space; 21, extraction device; 22, second air inlet; 23, second air outlet; 3, indoor space; 4, air inlet duct; 5, diffuser duct; 51, air outlet hole; 52, connecting pipe; 521, receiving slot; 6, wind deflector; 61, fixing bolt; 7, locking member; 71, connecting half-ring; 72, locking bolt; 73, locking nut; 8, dust-proof net; 9, extraction fan. Detailed Embodiment

[0035] The following will Figures 1-4 further describe the present application in detail.

[0036] An embodiment of the present application discloses a building fresh air system. Referring to Figure 1 , the fresh air system includes a partition 1 arranged indoors. For a room where the fresh air system needs to be installed, the partition 1 can be fixed horizontally at the upper end position indoors, so that a ventilation space 2 is formed between the upper surface of the partition 1 and the ceiling of the room, and an indoor space 3 is formed between the lower surface of the partition 1 and the room interior. The partition 1 is provided with a first air inlet 11 and a first air outlet 12, the building exterior wall is provided with a second air inlet 22 and a second air outlet 23, and a extraction device 21 is also fixed on the upper surface of the partition 1 by means of bolts or the like. The extraction device 21 can be an extraction fan, the air inlet end of the extraction fan is connected to the first air outlet 12 through a pipeline, and the air outlet end of the extraction fan is opened in the ventilation space 2. Thus, when the extraction fan is started, the indoor air can be pumped into the ventilation space 2 via the extraction fan.

[0037] Reference Figure 1 and Figure 2 In this embodiment, an air inlet pipe 4 is connected between the second air inlet 22 and the first air inlet 11. The air inlet pipe 4 can be a circular pipe. One end of the air inlet pipe 4 is connected to the second air inlet 22, and the other end extends in a direction away from the second air inlet 22. After bending near another side wall of the room, that is, the air inlet pipe 4 is meanderingly arranged in the ventilation space 2 and then connected to the first air inlet 11. Thus, the fresh air entering the air inlet pipe 4 from the second air inlet 22 exchanges heat with the gas in the ventilation space 2 as it passes through the ventilation space 2 along the air inlet pipe 4, so that the temperature of the newly entered fresh air can approach the indoor temperature, reducing the use of refrigeration equipment or heating equipment and lowering energy consumption.

[0038] Reference Figure 1 and Figure 2 In this embodiment, when it is necessary to replace the indoor air, the exhaust fan is started, and the air in the indoor space 3 can be extracted through the first air outlet 12 and discharged into the ventilation space 2. The air pressure in the ventilation space 2 increases, and the excess air can be discharged outdoors along the second air outlet 23. At the same time, the indoor air pressure drops at this time, forming a suction force. The outdoors can enter the indoor space 3 from the second air inlet 22, through the air inlet pipe 4, and then through the first air inlet 11, thus achieving the effect of purifying the indoor space 3. Optionally, an exhaust fan 9 can be provided at the second air inlet 22, so that when ventilation is required, the exhaust fan 9 can be synchronously turned on to draw outdoor air into the air inlet pipe 4 to improve the air intake effect.

[0039] Reference Figure 2 and Figure 3 In this embodiment, a diffuser pipe 5 is fixed on the partition 1. The diffuser pipe 5 is located at the first air outlet 12. The diffuser pipe 5 can be a rectangular hollow pipe with both ends closed. The diffuser pipe 5 extends along the width direction of the partition 1. The upper surface of the diffuser pipe 5 is communicated with the air inlet pipe 4, and air outlet holes 51 are opened on the lower surface. The air outlet holes 51 extend along the length direction of the diffuser pipe 5, and the pipe orifice position of the diffuser pipe 5 is offset from the air outlet holes 51 in the horizontal projection. Thus, when the outdoor air blows into the diffuser pipe 5 from the air inlet pipe 4, it can first blow towards the side wall of the diffuser pipe 5. Part of it can enter the indoor space 3 along the air outlet holes 51, and part of it diffuses along the length direction of the diffuser pipe 5 and then blows out through the air outlet holes 51, so that the fresh air entering the indoor space 3 is more evenly distributed.

[0040] Reference Figure 2 and Figure 3, in this embodiment, a wind guiding plate 6 is detachably arranged on the lower surface of the air dispersion pipe 5. One end of the wind guiding plate 6 extends upward and is fixed to the air dispersion pipe 5, and the other end extends in the horizontal direction. Thus, the fresh air discharged from the air outlet holes 51 can be blown out along the direction of the wind guiding plate 6 and enter the indoor space 3 at a relatively horizontal angle, thereby avoiding direct air blowing and improving the comfort of the fresh air system. The upper end of the wind baffle has a part that can be bent to abut against the lower surface of the air dispersion pipe 5. Fixing bolts 61 are arranged on the wind guiding plate 6. After passing through the wind guiding plate 6, the fixing bolts 61 can be threadedly connected to the lower surface of the air dispersion pipe 5. A plurality of fixing bolts 61 are arranged along the length direction of the wind guiding plate 6, so as to detachably fix the wind guiding plate 6 below the air dispersion pipe 5.

[0041] Refer to Figure 2 and Figure 3 , in this embodiment, two air inlet pipes 4 can be arranged. The two air inlet pipes 4 are respectively connected to both ends of the air dispersion pipe 5, so as to further improve the uniformity of the fresh air distribution entering the room; meanwhile, two second air inlets 22 are also opened and are correspondingly connected to the two air inlet pipes 4 one by one to improve the air inlet efficiency. A dust-proof net 8 can be arranged at the second air inlet 22, and the exhaust fan 9 is arranged between the dust-proof net 8 and the air inlet pipe 4.

[0042] Refer to Figure 3 and Figure 4 , in this embodiment, a connecting pipe 52 is fixed to the upper end of the air dispersion pipe 5 by means of one-time molding or welding. The upper end of the connecting pipe 52 extends upward for connecting with the air inlet pipe 4. A locking member 7 for locking the air inlet pipe 4 is arranged on the connecting pipe 52. Further, a socket 521 for inserting the air inlet pipe 4 is opened on the upper surface of the connecting pipe 52. When the air inlet pipe 4 is inserted into the socket 521 and the end abuts against the bottom wall of the socket 521, the locking member 7 can lock the air inlet pipe 4 in the connecting pipe 52.

[0043] Refer to Figure 3 and Figure 4 , in this embodiment, the locking member 7 includes two connecting half-rings 71, a locking bolt 72 and a locking nut 73 for fixing the two ends of the two connecting half-rings 71. Rectangular blocks are fixed at the two ends of the connecting half-rings 71 in the direction away from the axis of the connecting pipe 52. When the two connecting half-rings 71 are buckled on the outer side wall of the connecting pipe 52, the locking bolt 72 can pass through the rectangular block parts on the two connecting half-rings 71 in sequence, and the two rectangular blocks are locked by threadedly connecting the locking nut 73, so as to lock the two connecting half-rings 71 on the connecting pipe 52 and synchronously lock the connecting pipe 52 and the air inlet pipe 4.

[0044] Refer to Figure 2 and Figure 3, in this embodiment, a dust-proof net 8 can also be provided at the second air outlet 23 to limit the entry of outdoor dust into the room. A rectangular duct can also be provided at the first air outlet 12, and openings are formed along the length direction of the rectangular duct. When the exhaust fan draws air, the air in the indoor space 3 can be drawn out along the length direction of the openings, reducing the discomfort caused by single-point air extraction and enabling the air in the indoor space 3 to be drawn out more evenly.

[0045] The implementation principle of a building fresh air system according to an embodiment of the present application is as follows: When ventilating the room, the exhaust device 21 is first started. The exhaust device 21 draws indoor air into the ventilation space 2. After filling the ventilation space 2, the air flows to the second air outlet 23 and is discharged outdoors. At the same time, the exhaust fan 9 is started, and outdoor fresh air is inhaled into the air inlet duct 4 and exchanges heat with the air outside the duct in the ventilation space 2. After the fresh air is cooled or heated by the air in the ventilation space 2, it enters the air distribution duct 5 and enters the indoor space 3 along the air outlet holes 51 and the air guide plate 6, thereby realizing the update of indoor air.

[0046] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A building fresh air system, characterized in that: The invention comprises a partition (1) arranged indoors, wherein a ventilation space (2) for air intake and exhaust is formed on one side of the partition (1), and an indoor space (3) is formed on the other side of the partition (1); an exhaust device (21) is arranged in the ventilation space (2); a first air inlet (11) and a first air outlet (12) are provided on the partition (1); an air inlet end of the exhaust device (21) is connected to the first air outlet (12); an air outlet end of the exhaust device (21) is located in the ventilation space (2); a second air inlet (22) and a second air outlet (23) are provided on the outer wall of the building; the second air outlet (23) is connected to the ventilation space (2); an air inlet duct (4) is arranged between the second air inlet (22) and the first air inlet (11); the air inlet duct (4) is arranged in a winding manner in the part located in the ventilation space (2).

2. A building fresh air system according to claim 1, characterized in that: An air dispersion pipe (5) is provided at the first air inlet (11), the air dispersion pipe (5) extending along the width direction of the partition (1), one side of the air dispersion pipe (5) being connected to the air inlet duct (4), and an air outlet hole (51) is provided on the other side of the air dispersion pipe (5), the air outlet hole (51) extending along the length direction of the air dispersion pipe (5).

3. A building fresh air system according to claim 2, characterized in that: The position of the pipe opening of the air inlet duct (4) is staggered from the air outlet hole (51).

4. A building fresh air system according to claim 3, characterized in that: Two air inlet ducts (4) are provided, and the air inlet ducts (4) are respectively connected to two ends of the air dispersion pipe (5), and two second air inlets (22) are provided in a one-to-one correspondence with the air inlet ducts (4).

5. A building fresh air system according to claim 2, characterized in that: An air guide plate (6) is provided on one side of the air dispersion duct (5) facing the indoor space (3); after the outdoor fresh air is blown out along the air outlet holes (51) of the air dispersion duct (5), it can enter the indoor space (3) in a horizontal direction under the guidance of the air guide plate (6).

6. A building fresh air system according to claim 5, characterized in that: The air guide plate (6) is provided with a fixing bolt (61), and the fixing bolt (61) can pass through the air guide plate (6) and be threadedly connected to the side wall of the air dispersion pipe (5).

7. A building fresh air system according to claim 2, characterized in that: A connecting pipe (52) for plugging the air inlet duct (4) is provided on the side wall of the air dispersion duct (5), and a locking piece (7) for locking the air inlet duct (4) is provided on the connecting pipe (52).

8. A building fresh air system according to claim 7, characterized in that: A socket (521) for plugging the air inlet duct (4) is provided on the inner side wall of one end of the connecting pipe (52) away from the air dispersion pipe (5).

9. A building fresh air system according to claim 7, characterized in that: The locking member (7) comprises two connecting half rings (71), and a locking bolt (72) and a locking nut (73) for fixing the two ends of the two connecting half rings (71) to each other. The locking bolt (72) can be sequentially passed through the two connecting half rings (71) and threadedly connected to the locking nut (73).

10. A building fresh air system according to any one of claims 1 to 9, characterized in that: The second air outlet (23) and the second air inlet (22) are both provided with dustproof nets (8), the second air inlet (22) is provided with an exhaust fan (9), and the exhaust fan (9) is arranged between the dustproof net (8) and the air inlet duct (4).

Images