Dual-system fresh air function equipment

Abstract

The utility model relates to a new trend function equipment technical field discloses a double system new trend function equipment, including main part box, the middle part fixedly connected with the heat exchange pipe of main part box inner wall, the lower end fixedly connected with the surface cooler of main part box inner wall near the middle part, the front end fixedly connected with the new trend executor of main part box outer wall upper part, the new trend executor output fixedly connected with drive gear shaft, the rear end of drive gear shaft penetrates main part box to the inside of main part box and is fixedly connected with drive gear, the upper part of main part box inner wall rotates and is connected with indoor return air blade all in a circle. In the utility model, the up and down distribution design of heat exchange pipe and surface cooler in main part box makes gas heating component and water component form double heat source cooperation work mode, can be through heat exchange pipe high -efficient heating when gas is sufficient, switches to surface cooler and utilizes cold and hot water heat exchange when gas is insufficient.

Description

Technical Field

[0001] This utility model relates to the technical field of fresh air function equipment, and in particular to a dual-system fresh air function equipment. Background Technology

[0002] Dual-system fresh air systems are comprehensive indoor air treatment devices. Their core function is to effectively replace and treat indoor and outdoor air to improve indoor air quality. This equipment draws in fresh air from the outside through a specific air intake duct. Utilizing its built-in filtration system, such as pre-filters, medium-efficiency filters, high-efficiency filters, and even activated carbon filters, it filters the outdoor air layer by layer, blocking dust, pollen, particulate matter, bacteria, viruses, and some harmful gases, ensuring that the air entering the room meets certain cleanliness standards. However, most such devices use dual water coils to supply hot and cold water separately, which has the limitation of a single heat or cold source. Furthermore, the airflow only draws in air from the top of the room, forming an internal circulation. This leads to poor air circulation in enclosed spaces, especially in high-latitude regions where outdoor temperatures are below freezing, where the introduced low-temperature fresh air may damage the equipment.

[0003] Therefore, those skilled in the art have provided a dual-system fresh air function device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dual-system fresh air function device. When the gas supply is insufficient, the control box can switch to water component mode, utilizing a loop formed by the surface cooler and inlet / outlet water pipes to achieve hot and cold water heat exchange, solving the problem of dependence on a single heat source. Simultaneously, the fresh air introduction system introduces fresh air through the outdoor fresh air inlet, filter, and fan. Driven by the drive gear and linkage gear, the fresh air blades and indoor return air blades rotate in opposite directions, adjusting the mixing ratio of fresh air and indoor return air. After being guided by the guide vanes and outlet actuator, the air is delivered into the room, breaking the traditional internal circulation mode and improving spatial air circulation. When the gas supply is sufficient, the gas pipe sends gas into the combustion chamber for combustion. The heat is used to preheat the low-temperature fresh air through the heat exchange pipe, protecting the lower surface cooler from freezing damage and further expanding the applicability of the device in cold regions.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A dual-system fresh air function device includes a main body box, a heat exchange tube is fixedly connected to the middle of the inner wall of the main body box, a surface cooler is fixedly connected to the lower end of the inner wall of the main body box near the middle, and a fresh air actuator is fixedly connected to the front end of the upper part of the outer wall of the main body box. The output end of the fresh air actuator is fixedly connected to a drive gear shaft. The rear end of the drive gear shaft passes through the main body box to the inside of the main body box and is fixedly connected to a drive gear. Indoor return air blades are rotatably connected to the upper part of the inner wall of the main body box. Fresh air blades are rotatably connected to the upper part of the inner wall of the main body box near the fresh air actuator. A linkage gear is fixedly connected to the end of the indoor return air blades near the fresh air actuator. Through the above technical solution, the upper and lower distribution design of the heat exchange tubes and surface cooler in the main box enables the gas heating component and water component to form a dual heat source collaborative working mode. When the gas is sufficient, it can efficiently heat through the heat exchange tubes. When the gas is insufficient, it switches to the surface cooler to use hot and cold water for heat exchange, which solves the limitation of the equipment having a single heat source. The connection between the fresh air actuator and the drive gear shaft provides the power basis for the linkage adjustment of the fresh air blades and the indoor return air blades, which makes it easy to flexibly control the fresh air intake and return air mixing ratio according to the indoor air conditions.

[0006] Furthermore, an air outlet actuator is fixedly installed on the inner bottom surface of the main body box, an air guide vane is installed at the lower end of the inner wall of the main body box, and a water receiving tray is fixedly connected to the upper end of the inner wall of the main body box near the air guide vane. Through the above technical solution, the air outlet actuator and the air guide vanes can be coordinated to adjust the airflow direction according to different working conditions, so that the treated air is evenly distributed to various areas of the room, improving the comfort of air circulation. The water tray and condensate pipe can collect and drain the condensate generated during the cooling process of the surface cooler in a timely manner, avoiding water accumulation inside the equipment and affecting operating efficiency.

[0007] Furthermore, the outer wall of the drive gear meshes with the outer walls of the corresponding linkage gears on both sides, the outer walls of adjacent linkage gears mesh with each other, and the front end of the fresh air blade is fixedly connected to the middle of the rear end of the drive gear. Through the above technical solution, the meshing transmission structure of the drive gear and the linkage gear ensures that the fresh air blades and the indoor return air blades achieve reverse linkage adjustment. When the fresh air blades are turned on, the indoor return air blades are turned off simultaneously, or they can be adjusted to different angles as needed to achieve the mixing of fresh air and return air, breaking the internal circulation mode and improving the efficiency of indoor and outdoor air exchange.

[0008] Furthermore, an outlet pipe is connected to the upper part of the rear end of one side of the surface cooler and extends through the main body box to the outside of the main body box; an inlet pipe is connected to the lower part of the rear end of one side of the surface cooler and extends through the main body box to the outside of the main body box. Through the above technical solution, the surface cooler is connected to the inlet and outlet water pipes to form a complete hot and cold water circulation loop. This allows the surface cooler to exchange heat with the fresh air delivered by the fan, depending on whether cold or hot water is connected, thus achieving flexible switching between cooling and heating functions and enhancing the equipment's adaptability to different seasons and environments.

[0009] Furthermore, a condensate pipe is connected to the rear end of the lower side of the water receiving tray and extends through the main body box to the outside of the main body box; the air guide vanes change according to the gear of the air outlet actuator. The above technical solution ensures smooth drainage of condensate by connecting the water tray and the condensate pipe, and the air outlet actuator adjusts the speed of the air guide vanes to make the air handling effect more suitable for actual use scenarios.

[0010] Furthermore, a control box is fixedly connected to the middle of one side outer wall of the main body box, and a combustion chamber is fixedly connected to the upper end of the control box. A gas pipe is connected through the air inlet of the combustion chamber and extends through the combustion chamber to the outside of the combustion chamber. The air outlet of the combustion chamber is connected through a pipe to the inside of the heat exchange tube. Through the above technical solution, the connection between the control box, combustion chamber, and gas pipe constitutes a control system for gas heating. The control box can adjust the on / off state of the gas pipe, and the heat generated by the combustion of gas in the combustion chamber is transferred to the fresh air through the heat exchange pipe to achieve efficient heating. The through design of the combustion chamber and the heat exchange pipe ensures full heat exchange and improves energy utilization efficiency.

[0011] Furthermore, a fresh air filter is snapped into the upper part of the inner wall of the main body box at the lower part of the indoor return air blades, and a fan is fixedly connected to the lower part of the inner wall of the main body box near the fresh air filter. Through the above technical solution, the fresh air filter and the fan form a complete fresh air filtration and delivery path. After being filtered by the filter, the outdoor fresh air is sent into the main unit by the fan, effectively blocking pollutants such as dust and particulate matter, and ensuring the cleanliness of the introduced air.

[0012] Furthermore, a flue pipe is connected to the exhaust outlet of the heat exchange tube and extends through the main body box to the outside of the main body box; an outdoor fresh air inlet is provided at the upper end of the main body box. The above technical solution ensures that the heat exchange tube and the flue pipe are connected, thus ensuring that the exhaust gas generated by the combustion of gas is discharged in a timely manner.

[0013] This utility model has the following beneficial effects: This utility model proposes a dual-system fresh air function device. When the gas supply is insufficient, the control box inside the device switches to water component mode, allowing hot and cold water to flow into the surface cooler through the inlet pipe and then be discharged through the outlet pipe. During this process, the surface cooler exchanges heat with the fresh air delivered by the fan to achieve cooling or heating. Simultaneously, outdoor fresh air enters from the inlet, is filtered by the filter, and is then sent into the main unit by the fan. The fresh air actuator drives the drive gear shaft to rotate. Through the meshing of the drive gear and the linkage gear, the fresh air blades and the indoor return air blades rotate in opposite directions, adjusting the mixing ratio of fresh air and indoor return air. The mixed airflow is guided by the guide vanes and the outlet actuator before being sent into the room, improving the air circulation in the space. In areas requiring heating, when the gas supply is sufficient, the gas pipe sends gas into the combustion chamber for combustion. The heat is transferred to the fresh air through the heat exchange pipe, raising the temperature of the low-temperature fresh air before it flows through the surface cooler below, protecting the surface cooler from freezing damage. Attached Figure Description

[0014] Figure 1 This is an isometric drawing of a dual-system fresh air function device proposed in this utility model; Figure 2 This is a side view of a dual-system fresh air function device proposed in this utility model; Figure 3 This is a schematic cross-sectional view of the structure of a dual-system fresh air function device proposed in this utility model; Figure 4 This is a side sectional view of a dual-system fresh air function device proposed in this utility model.

[0015] Legend: 1. Fresh air filter; 2. Fan; 3. Gas pipe; 4. Combustion chamber; 5. Heat exchanger tube; 6. Control box; 7. Surface cooler; 8. Water tray; 9. Air guide vane; 10. Smoke exhaust pipe; 11. Water outlet pipe; 12. Water inlet pipe; 13. Condensate pipe; 14. Air outlet actuator; 15. Outdoor fresh air inlet; 16. Drive gear; 17. Linkage gear; 18. Fresh air actuator; 19. Drive gear shaft; 20. Fresh air vane; 21. Indoor return air vane; 22. Main casing. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Reference Figure 1-4One specific embodiment provided by this utility model: A dual-system fresh air function device includes a main body box 22. A heat exchange tube 5 is fixedly connected to the middle of the inner wall of the main body box 22. A surface cooler 7 is fixedly connected to the lower end of the inner wall of the main body box 22 near the middle. A fresh air actuator 18 is fixedly connected to the front end of the upper part of the outer wall of the main body box 22. A drive gear shaft 19 is fixedly connected to the output end of the fresh air actuator 18. The rear end of the drive gear shaft 19 passes through the main body box 22 to the interior of the main body box 22 and is fixedly connected to a drive gear 16. Indoor return air blades 21 are rotatably connected to the upper part of the inner wall of the main body box 22. Fresh air blades 20 are rotatably connected to the upper part of the inner wall of the main body box 22 near the fresh air actuator 18. A linkage gear 17 is fixedly connected to the end of the indoor return air blades 21 near the fresh air actuator 18.

[0018] The vertical distribution of heat exchange tubes 5 and surface coolers 7 inside the main casing 22 enables the gas heating components and water components to form a dual heat source working mode. When gas is sufficient, it can efficiently heat through heat exchange tubes 5. When gas is insufficient, it switches to surface coolers 7 to exchange hot and cold water, solving the limitation of the equipment having a single heat source. The connection between the fresh air actuator 18 and the drive gear shaft 19 provides the power basis for the linkage adjustment of the fresh air blades 20 and the indoor return air blades 21, which makes it easy to flexibly control the fresh air intake and return air mixing ratio according to the indoor air conditions.

[0019] An air outlet actuator 14 is fixedly installed on the inner bottom surface of the main body box 22. An air guide vane 9 is installed at the lower end of the inner wall of the main body box 22. A water collection tray 8 is fixedly connected to the upper end of the inner wall of the main body box 22 near the air guide vane 9. The cooperation between the air outlet actuator 14 and the air guide vane 9 can adjust the airflow direction according to different working conditions, so that the treated air is evenly distributed to various areas of the room, improving the comfort of air circulation. The water collection tray 8 and the condensate pipe 13 can collect and drain the condensate generated by the surface cooler 7 during cooling in a timely manner, avoiding water accumulation inside the equipment and affecting operating efficiency.

[0020] The outer wall of the drive gear 16 meshes with the outer walls of the corresponding linkage gears 17 on both sides, and the outer walls of adjacent linkage gears 17 mesh with each other. The front end of the fresh air blade 20 is fixedly connected to the middle of the rear end of the drive gear 16. The meshing transmission structure of the drive gear 16 and the linkage gear 17 ensures that the fresh air blade 20 and the indoor return air blade 21 achieve reverse linkage adjustment. When the fresh air blade 20 is turned on, the indoor return air blade 21 is turned off synchronously, or it can be adjusted to different angles as needed to achieve the mixing of fresh air and return air, break the internal circulation mode, and improve the efficiency of indoor and outdoor air exchange.

[0021] The upper part of the rear end of one side of the surface cooler 7 is connected to the outlet pipe 11, which passes through the main body box 22 to the outside of the main body box 22. The lower part of the rear end of one side of the surface cooler 7 is connected to the inlet pipe 12, which passes through the main body box 22 to the outside of the main body box 22. The connection between the surface cooler 7, the inlet pipe 12, and the outlet pipe 11 forms a complete hot and cold water circulation loop, so that the surface cooler 7 can exchange heat with the fresh air delivered by the fan 2 according to the incoming cold or hot water, realize the flexible switching of cooling or heating functions, and enhance the equipment's adaptability to different seasons and environments.

[0022] A condensate pipe 13 is connected to the rear end of the lower side of the water tray 8 and runs through the main body box 22 to the outside of the main body box 22. The air guide vane 9 changes according to the gear of the air outlet actuator 14. The connection design between the water tray 8 and the condensate pipe 13 ensures smooth discharge of condensate. The air outlet actuator 14 adjusts the gear of the air guide vane 9 to make the air handling effect more in line with the actual use scenario. A control box 6 is fixedly connected to the middle of the outer wall of one side of the main body box 22. A combustion chamber 4 is fixedly connected to the upper end of the control box 6. A gas pipe 3 is connected to the air inlet of the combustion chamber 4 and runs through the combustion chamber 4 to the outside of the combustion chamber 4. The air outlet of the combustion chamber 4 is connected to the heat exchange pipe 5 through a pipe. The connection between the control box 6, the combustion chamber 4, and the gas pipe 3 constitutes the control system for gas heating. The control box 6 can adjust the on / off of the gas pipe 3. The heat generated by the combustion of gas in the combustion chamber 4 is transferred to the fresh air through the heat exchange pipe 5 to achieve efficient heating. The connection design between the combustion chamber 4 and the heat exchange pipe 5 ensures full heat exchange and improves energy utilization efficiency.

[0023] A fresh air filter 1 is snapped onto the upper part of the inner wall of the main body box 22 at the lower part of the indoor return air blade 21. A fan 2 is fixedly connected to the lower part of the inner wall of the main body box 22 near the fresh air filter 1. The arrangement of the fresh air filter 1 and the fan 2 forms a complete fresh air filtration and delivery path. After being filtered by the filter, the outdoor fresh air is sent into the main body box 22 by the fan 2, effectively blocking pollutants such as dust and particulate matter, and ensuring the cleanliness of the introduced air. The exhaust pipe 10 is connected to the exhaust outlet of the heat exchange pipe 5 and runs through the main body box 22 to the outside of the main body box 22. An outdoor fresh air inlet 15 is opened at the upper end of the main body box 22. The through design of the heat exchange pipe 5 and the exhaust pipe 10 ensures that the exhaust gas generated by the combustion of gas is discharged in a timely manner.

[0024] Working principle: When this fresh air function device is working, outdoor fresh air enters from the inlet at the top of the main body box 22, is filtered by the fresh air filter 1, and is then sent into the main body box 22 by the fan 2. During this process, if the gas supply is sufficient, the gas pipe 3 sends the gas into the combustion chamber 4 for combustion, and the heat is transferred to the fresh air through the heat exchange pipe 5. The heated fresh air then flows through the surface cooler 7 below. At the same time, the control box 6 can switch to the water component mode as needed, allowing hot and cold water to flow into the surface cooler 7 through the water inlet pipe 12 to exchange heat with the fresh air, thereby achieving cooling or heating. Meanwhile, the fresh air actuator 18 drives the drive gear. The rotation of wheel 16 shaft, through the meshing of drive gear 16 and linkage gear 17, causes the fresh air blades 20 and indoor return air blades 21 to rotate in opposite directions, thereby adjusting the mixing ratio of fresh air and indoor return air. The mixed airflow is guided by the guide vanes 9 and the air outlet actuator 14 and then sent into the room. The condensate generated by the surface cooler 7 during cooling is collected by the water collection pan 8 and discharged through the condensate pipe 13. Throughout the process, the control box 6 coordinates the operation of each component. In cold regions, it can also preheat the fresh air through the heat exchange pipe 5 to protect the surface cooler 7 from freezing, thereby realizing dual heat source switching and efficient air circulation.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The specific meaning of the above terms in this utility model shall be understood by those skilled in the art based on the specific circumstances. In addition, unless otherwise stated, "multiple" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They 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, and should not be construed as a limitation on this utility model; the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-system fresh air function device, comprising a main unit (22), characterized in that: A heat exchange tube (5) is fixedly connected to the middle of the inner wall of the main body box (22). A surface cooler (7) is fixedly connected to the lower end of the inner wall of the main body box (22) near the middle. A fresh air actuator (18) is fixedly connected to the front end of the upper part of the outer wall of the main body box (22). A drive gear shaft (19) is fixedly connected to the output end of the fresh air actuator (18). An indoor return air blade (21) is rotatably connected to the upper part of the inner wall of the main body box (22).

2. The dual-system fresh air function device according to claim 1, characterized in that: An air outlet actuator (14) is fixedly installed on the inner bottom surface of the main body box (22), and a guide vane (9) is installed at the lower end of the inner wall of the main body box (22). A water receiving tray (8) is fixedly connected to the upper end of the inner wall of the main body box (22) near the guide vane (9).

3. The dual-system fresh air function device according to claim 1, characterized in that: A fresh air blade (20) is rotatably connected to the upper part of the inner wall of the main body box (22) near the fresh air actuator (18). The rear end of the drive gear shaft (19) passes through the main body box (22) to the interior of the main body box (22) and is fixedly connected to the drive gear (16). The inner return air blade (21) is fixedly connected to the linkage gear (17) at one end near the fresh air actuator (18). The outer wall of the drive gear (16) meshes with the outer walls of the corresponding linkage gears (17) on both sides. The outer walls of adjacent linkage gears (17) mesh with each other. The front end of the fresh air blade (20) is fixedly connected to the middle of the rear end of the drive gear (16).

4. The dual-system fresh air function device according to claim 1, characterized in that: The upper part of the rear end of one side of the surface cooler (7) is connected to the water outlet pipe (11) and passes through the main body box (22) to the outside of the main body box (22). The lower part of the rear end of one side of the surface cooler (7) is connected to the water inlet pipe (12) and passes through the main body box (22) to the outside of the main body box (22).

5. A dual-system fresh air function device according to claim 2, characterized in that: The lower side of the water receiving tray (8) is connected to a condensate pipe (13) which runs through the main body box (22) to the outside of the main body box (22). The air guide blade (9) changes according to the gear of the air outlet actuator (14).

6. The dual-system fresh air function device according to claim 1, characterized in that: A control box (6) is fixedly connected to the middle of one side outer wall of the main body box (22). A combustion chamber (4) is fixedly connected to the upper end of the control box (6). A gas pipe (3) is connected through the gas inlet of the combustion chamber (4) and passes through the combustion chamber (4) to the outside of the combustion chamber (4). The gas outlet of the combustion chamber (4) is connected through a pipe to the inside of the heat exchange tube (5).

7. A dual-system fresh air function device according to claim 1, characterized in that: The upper end of the inner wall of the main body box (22) is fitted with a fresh air filter (1) at the lower part of the indoor return air blade (21), and a fan (2) is fixedly connected to the lower end of the inner wall of the main body box (22) near the fresh air filter (1).

8. A dual-system fresh air function device according to claim 1, characterized in that: The exhaust pipe (10) is connected to the exhaust outlet of the heat exchange tube (5) and passes through the main body box (22) to the outside of the main body box (22). An outdoor fresh air inlet (15) is opened at the upper end of the main body box (22).

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