Intelligent integrated through-wall hood

Abstract

The utility model discloses an intelligent integrated wall -penetrating air cap, including wall -penetrating pipe subassembly and box body subassembly, wall -penetrating pipe subassembly includes wall -penetrating pipe body, rainproof air cap, rough filter screen and secondary filter screen, the box body subassembly includes box body, electrically adjusted air valve and micro fan, the rainproof air cap is provided with rough filter screen, the wall -penetrating pipe body is provided with secondary filter screen, first temperature sensor and differential pressure sensor, and the rainproof air cap is provided with the rainproof air cap in the outdoor end of wall -penetrating pipe body, and the indoor end of wall -penetrating pipe body is inserted with the box body, and the inlet end and the outlet end of box body are all provided with electrically adjusted air valve, and the second temperature sensor and dew point temperature sensor are provided in the box body, and the bottom of box body is provided with micro fan. The utility model can prevent filter screen blockage, and filter screen self -cleaning prevents the condensation of air pipe, when the new fan does not run, closes the box body inlet electrically adjusted air valve, reduces the indoor heat, cold loss, realizes the energy -conserving.

Description

Technical Field

[0001] This utility model relates to the field of household fresh air system technology, and in particular to an intelligent integrated through-wall ventilator. Background Technology

[0002] Current unresolved issues with residential ventilation systems: 1. The currently used integrated wall-penetrating ventilator has two filters to block mosquitoes and medium to large solid particles. However, after the fan has been running for a long time, outdoor plant fibers, willow catkins, insect remains, plastic waste, etc. will seriously clog the filters, resulting in frequent maintenance and repair of the coarse filter.

[0003] 2. Winter operating conditions: When the fresh air unit is on or off, cold outdoor air will enter the fresh air duct, causing the internal temperature of the duct to drop. Due to the heat conduction of the duct material itself, the temperature of the outer wall of the duct will gradually decrease. When the temperature of the outer wall of the duct drops below the indoor dew point temperature, condensation will form on the outer surface of the fresh air duct, causing dirt and damage to the ceiling panels, resulting in economic losses.

[0004] 3. Summer operating conditions: Whether the fresh air unit is on or off, hot outdoor air will enter the fresh air duct, causing the temperature inside the duct to be basically the same as the outdoor temperature. Meanwhile, the room is in air conditioning cooling mode. Due to the heat conduction of the duct material itself, the temperature of the inner wall of the duct will gradually decrease. When the temperature of the inner wall of the duct drops below the outdoor dew point temperature, condensation will form on the inner surface of the fresh air duct, affecting the energy heat recovery efficiency of the fresh air unit. In severe cases, it may cause water to accumulate inside the fresh air unit and even damage the equipment. Utility Model Content

[0005] To address the aforementioned problems, this utility model aims to provide an intelligent integrated wall-penetrating vent cap to solve the issues of easy filter clogging and easy condensation in the duct.

[0006] The technical problem solved by this utility model can be achieved by the following technical solution: an intelligent integrated through-wall vent cap, including a through-wall pipe assembly and a housing assembly. The through-wall pipe assembly includes a through-wall pipe body, a rainproof vent cap, a coarse filter screen, and a secondary filter screen. The housing assembly includes a housing body, an electrically adjustable air valve, and a micro fan. A coarse filter screen is installed inside the rainproof vent cap. A secondary filter screen is installed inside the through-wall pipe body. A rainproof vent cap is installed at the outdoor end of the through-wall pipe body. The indoor end of the through-wall pipe body is inserted into the housing body. An electrically adjustable air valve is installed at both the inlet and outlet ends of the housing body. A micro fan is installed at the bottom of the housing body.

[0007] The inlet end of the enclosure body is provided with an inlet socket for connecting the wall-penetrating pipe body, and the outlet end of the enclosure body is provided with an outlet socket for connecting the indoor fresh air duct.

[0008] The inlet end of the enclosure body is equipped with an electric regulating air valve for the enclosure inlet, and the outlet end of the enclosure body is equipped with an electric regulating air valve for the enclosure outlet.

[0009] A differential pressure sensor is installed inside the wall-penetrating pipe, with its two pressure measuring ports located on both sides of the secondary filter screen.

[0010] A first temperature sensor is installed on the inner wall of the through-wall pipe body, and the first temperature sensor is located near the coarse filter screen.

[0011] A second temperature sensor is installed on the inner wall of the enclosure body, and the second temperature sensor is located near the electrically adjustable air valve at the enclosure inlet.

[0012] An outdoor dew point temperature sensor is installed on the inner wall of the enclosure body, and an indoor dew point temperature sensor is installed on the outer wall of the enclosure body.

[0013] The box body is equipped with a partition, and the micro fan is located below the partition. The partition has a fan outlet hole, and the fan outlet hole is equipped with a fan outlet electric regulating valve. The air outlet of the micro fan is connected to the fan outlet electric regulating valve. The box body 5 located below the partition has holes.

[0014] Compared with the prior art, this utility model has the following advantages: This utility model has a built-in micro fan, electric regulating valve, temperature sensor, differential pressure sensor and dew point temperature sensor, which can realize functions such as preventing filter clogging, filter self-cleaning, and preventing condensation in the air duct; when the fresh air fan is not running, closing the electric regulating valve at the box inlet can reduce the loss of indoor heat and cold caused by heat conduction and thermal bridge in the fresh air duct in winter and summer, thus achieving greater energy saving. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention before installation; Figure 2 This is a schematic diagram showing the completed installation of this utility model; Figure 3 This is a schematic diagram of the normal ventilation state of this utility model; Figure 4 This is a schematic diagram of the backflushing cleaning state of this utility model; Figure 5 This is a schematic diagram illustrating the anti-condensation state of this utility model; In the diagram: A. Through-wall pipe assembly, B. Box assembly, 1. Rainproof hood, 1-1. Coarse filter screen, 2. Through-wall pipe body, 2-2. Secondary filter screen, 3. Box inlet socket connection, 4. Box inlet electric regulating damper, 5. Box body, 6. Fan outlet electric regulating damper, 7. Miniature fan, 8. Box outlet electric regulating damper, 9. Box outlet socket connection, 12. Second temperature sensor T2, 10. First temperature sensor T1, 11. Differential pressure sensor P (pressure measuring ports are P1 and P2 respectively), 13. Outdoor dew point temperature sensor, 14. Indoor dew point temperature sensor. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0017] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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] Combined with appendix Figures 1 to 5 As shown, this embodiment discloses an intelligent integrated through-wall vent hood, including a through-wall pipe assembly and a housing assembly. The through-wall pipe assembly includes a through-wall pipe body 2, a rainproof vent hood 1, a coarse filter screen 1-1, a secondary filter screen 2-2, a first temperature sensor 10, and a differential pressure sensor 11. The rainproof vent hood 1 contains the coarse filter screen 1-1, and the through-wall pipe body 2 contains the secondary filter screen 2-2. The rainproof vent hood 1 is located at the outdoor end of the through-wall pipe body 2, and the indoor end of the through-wall pipe body 2 is inserted into the housing body 5. The first temperature sensor 10 is located on the inner wall of the through-wall pipe body 2, near the coarse filter screen 1-1. The differential pressure sensor 11 is located inside the through-wall pipe body 2, with its two pressure measuring ports located on both sides of the secondary filter screen 2-2.

[0019] The rainproof hood 1 is used to prevent outdoor rainwater from entering the fresh air duct; the wall-penetrating pipe body 2 is used for the continuation of the fresh air duct through the wall; the coarse filter screen 1-1 is used for primary air intake filtration to block outdoor plant fibers, willow catkins, insect remains, plastic waste, etc. from entering the fresh air duct; the secondary filter screen 2-2 is used for secondary air intake filtration to block mosquitoes and medium to large solid particles from entering the fresh air duct; the temperature sensor 10 is used to monitor the outdoor temperature and determine whether it is winter or summer operating conditions; the differential pressure sensor P11 (pressure measuring ports are P1 and P2 respectively) is used to monitor whether the secondary filter screen is blocked.

[0020] The enclosure assembly includes an enclosure body 5, an electrically adjustable air valve, a miniature fan 7, a second temperature sensor 12, an outdoor dew point temperature sensor 13, and an indoor dew point temperature sensor 14. The enclosure body 5 is equipped with an electrically adjustable air valve at both the inlet and outlet ends, and the miniature fan 7 is installed at the bottom of the enclosure body 5.

[0021] The inlet end of the enclosure body 5 is provided with an inlet socket connection 3 for connecting to the wall-penetrating pipe body 2, and the outlet end of the enclosure body 5 is provided with an outlet socket connection 9 for connecting to the indoor fresh air duct. The inlet end of the enclosure body 1 is provided with an inlet electrically adjustable damper 4, and the outlet end of the enclosure body 5 is provided with an outlet electrically adjustable damper 6. The inlet electrically adjustable damper 4 and the outlet electrically adjustable damper 6 can be electrically adjusted and controlled according to control commands, such as fully closed, fully open, or proportional opening.

[0022] A second temperature sensor 12 is installed on the inner wall of the enclosure body 5, and the second temperature sensor 12 is located near the electrically adjustable air valve 4 at the enclosure inlet. The second temperature sensor 12 is used to monitor the air temperature inside the enclosure 5 in real time.

[0023] An outdoor dew point temperature sensor 13 is installed on the inner wall of the enclosure body 5 for real-time monitoring of the outdoor dew point temperature; an indoor dew point temperature sensor 14 is installed on the outer wall of the enclosure body 5 for real-time monitoring of the indoor dew point temperature.

[0024] The housing body 5 is equipped with a partition, and the miniature fan 7 is located below the partition. An air outlet is provided on the partition, and an electrically adjustable outlet valve 6 is installed on the air outlet. The air outlet of the miniature fan 7 is connected to the electrically adjustable outlet valve 6. Holes are provided on the housing body 5 below the partition to meet the air intake requirements of the miniature fan 7 from the room. The electrically adjustable outlet valve 6 can be electrically adjusted to fully closed, fully open, or proportionally open according to control commands. The control circuit of this utility model belongs to the prior art.

[0025] like Figure 3As shown, under normal ventilation conditions, the electric regulating damper 4 at the inlet of the enclosure is fully open; the electric regulating damper 6 at the outlet of the fan is fully closed; the miniature fan 7 is closed; the electric regulating damper 8 at the outlet of the enclosure is fully open; the first temperature sensor 10 monitors the outdoor temperature in real time; the differential pressure sensor 11 monitors the pressure difference across the filter in real time; the second temperature sensor 12 monitors the air temperature inside the enclosure in real time; the outdoor dew point temperature sensor 13 monitors the outdoor dew point temperature in real time; and the indoor dew point temperature sensor 14 monitors the indoor dew point temperature in real time.

[0026] like Figure 4 As shown, in the back-flushing cleaning state, when the differential pressure sensor 11 detects that the differential pressure across the filter exceeds the set value, it automatically switches from normal ventilation to back-flushing cleaning; when the differential pressure returns to normal, it automatically returns to normal ventilation. When the system runs for a predetermined time interval, the back-flushing cleaning mode is periodically activated to achieve self-cleaning; after self-cleaning is completed, it automatically returns to normal ventilation.

[0027] During backflushing cleaning: the electric regulating valve 4 at the inlet of the housing is fully open; the electric regulating valve 6 at the outlet of the fan is fully open; the miniature fan 7 is on; and the electric regulating valve 8 at the outlet of the housing is fully closed.

[0028] like Figure 5 As shown, in the anti-condensation state, the first temperature sensor 10 determines whether the system is in winter or summer operation; the second temperature sensor 12, outdoor dew point temperature sensor 13, indoor dew point temperature sensor 14, etc. monitor air condition parameters in real time, and draw indoor return air into the housing body 5 through the micro fan 7, which mixes it with outdoor fresh air in a certain proportion to ensure that in winter operation, the temperature T2 of the housing body 5 after mixing is not lower than the indoor dew point temperature DP2; in summer operation, the temperature T2 of the housing body 5 after mixing is not lower than the outdoor dew point temperature DP1; thus achieving the anti-condensation function.

[0029] In anti-condensation mode, the status of each component is as follows: the electric regulating damper 4 at the inlet of the enclosure is proportionally open; the electric regulating damper 5 at the outlet of the fan is proportionally open; the micro fan 7 is frequency-controlled and activated; the electric regulating damper 8 at the outlet of the enclosure is fully open; the temperature sensor 10 monitors the outdoor temperature T1 in real time; the differential pressure sensor 11 monitors the pressure difference across the filter screen in real time; the temperature sensor 12 monitors the air temperature T2 inside the enclosure body 5 in real time; the outdoor dew point temperature sensor 13 monitors the outdoor dew point temperature in real time; and the indoor dew point temperature sensor 14 monitors the indoor dew point temperature in real time.

[0030] When the fresh air unit is not running, closing the electric regulating valve 4 at the inlet of the unit can reduce the loss of indoor heat and cold caused by heat conduction and thermal bridging in the fresh air duct during winter and summer, thus achieving greater energy savings.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the utility model in any way. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A smart integrated through-wall vent cap, comprising a through-wall pipe assembly and a housing assembly, characterized in that: The through-wall pipe assembly includes a through-wall pipe body (2), a rainproof hood (1), a coarse filter screen (1-1), and a secondary filter screen (2-2). The box assembly includes a box body (5), an electric regulating valve, and a micro fan (7). The rainproof hood (1) is equipped with a coarse filter screen (1-1). The through-wall pipe body (2) is equipped with a secondary filter screen (2-2). The outdoor end of the through-wall pipe body (5) is equipped with a rainproof hood (1). The indoor end of the through-wall pipe body (2) is connected to the box body (5). The inlet and outlet ends of the box body (5) are equipped with electric regulating valves. The bottom of the box body (5) is equipped with a micro fan (7). The outlet of the micro fan (7) is connected to the fan outlet electric regulating valve (6).

2. The intelligent integrated wall-penetrating hood according to claim 1, characterized in that: The inlet end of the box body (5) is provided with a box inlet socket connection (3) for connecting the wall-penetrating pipe body (2), and the outlet end of the box body (5) is provided with a box outlet socket connection (9) for connecting the indoor fresh air duct.

3. The intelligent integrated wall-penetrating hood according to claim 1, characterized in that: The box body (1) is provided with a box inlet electric regulating air valve (4) at the inlet end, and the box body (5) is provided with a box outlet electric regulating air valve (6) at the outlet end.

4. The intelligent integrated wall-penetrating hood according to claim 1, characterized in that: The wall-penetrating pipe body (2) is equipped with a differential pressure sensor (11), and the two pressure measuring ports of the differential pressure sensor (11) are located on both sides of the secondary filter screen (2-2).

5. The intelligent integrated wall-penetrating hood according to claim 1, characterized in that: The inner wall of the through-wall pipe body (2) is provided with a first temperature sensor (10), which is located near the coarse filter screen (1-1).

6. The intelligent integrated wall-penetrating hood according to claim 1, characterized in that: A second temperature sensor (12) is provided on the inner wall of the box body (5). The second temperature sensor (12) is located near the electric regulating air valve (4) at the box inlet.

7. The intelligent integrated wall-penetrating hood according to claim 1, characterized in that: An outdoor dew point temperature sensor (13) is installed on the inner wall of the enclosure body (5), and an indoor dew point temperature sensor (14) is installed on the outer wall of the enclosure body (5).

8. The intelligent integrated wall-penetrating hood according to claim 1, characterized in that: The box body (5) is provided with a partition, the micro fan (7) is located below the partition, the partition has a fan outlet hole, the fan outlet hole is provided with a fan outlet electric regulating valve (6), and the box body (5) located below the partition has a hole.

Images