Ventilation device

Abstract

The utility model relates to an air interchanger. The ventilation device comprises an air inlet device, a filter box, a wall fixing plate, a one-way valve, a power supply device and a control device, the air inlet device adopts one-way air inlet, and external air can enter through the air inlet device; the filter box is used for filtering air and connected with the air inlet device through an air inlet pipe, an ozone disinfection unit, an oil screen dust filter unit, an HEPA unit and an activated carbon unit are arranged in the filter box, and an air outlet is further formed in the filter box and used for discharging filtered air; the wall fixing plate is used for fixing an air outlet pipe, the other end of the air outlet pipe is connected with an air outlet of the filter box, and a fan is arranged at the air outlet or a pipe orifice of the air outlet pipe or on the filter box at the upper end of the filter unit; the one-way valve is independently arranged and used for balancing the air pressure in the space, and when the air pressure is too large, air is exhausted outwards. The power supply device is used for supplying power to the whole device; the control device is used for controlling the whole device to operate.

Description

Technical Field

[0001] This utility model relates to the field of safety in enclosed buildings, and in particular to a ventilation device. Background Technology

[0002] Currently, indoor ventilation devices are generally either fans or fresh air exchangers. Fans are commonly found in hazardous chemical warehouses, rural housing kitchens, and ordinary laboratories, but they can only simply exhaust indoor air to the outside, resulting in low ventilation efficiency. Fresh air exchangers are a new type of environmentally friendly appliance, typically containing an air purification system. They can expel polluted indoor air while simultaneously introducing purified fresh air, operating as an open-loop circulation system. However, fresh air exchangers can only purify outdoor air and can only be installed indoors. When indoor air purification is required, such as in specialized laboratories with high airtightness requirements and containing toxic gases, fresh air exchangers cannot meet the demands. Utility Model Content

[0003] In view of the shortcomings of existing indoor ventilation devices, the technical problem to be solved by this utility model is to provide a ventilation device that can realize bidirectional air circulation and purification between the indoor and outdoor areas of a sealed building, without reducing the airtightness of the building.

[0004] To achieve the above objectives, according to one aspect of the present invention, the present invention is implemented through the following technical measures: a ventilation device, characterized in that it comprises:

[0005] An air intake device, wherein the air intake device is a one-way air intake device, allowing outside air to enter through the air intake device;

[0006] The filter box is used to filter air and is connected to the air intake device through an air intake pipe. The filter box is equipped with an ozone disinfection unit, an oil filter unit, a HEPA unit and an activated carbon unit. The filter box is also equipped with an air outlet for discharging the filtered air.

[0007] A wall mounting plate is used to fix the air outlet pipe. The other end of the air outlet pipe is connected to the air outlet of the filter box, and a fan is installed at the air outlet, the opening of the air outlet pipe, or the filter box at the top of the filter unit.

[0008] A one-way valve, which is set separately, is used to balance the air pressure in the space. When the air pressure is too high, it will discharge air outward.

[0009] Power supply device, the power supply device being used to supply power to the entire device;

[0010] A control device, which is used to control the operation of the entire device.

[0011] Furthermore, both the air intake device and the one-way valve are equipped with explosion-proof devices.

[0012] Furthermore, the one-way valve can be replaced by a balancing valve. The above design is intended for use in connecting multiple rooms.

[0013] Furthermore, the filter box is composed of three parts in sequence: an upper cover, a filter chamber, and a bottom cover. These three parts are fixed together by screws, welding, or snap-fit ​​connections, and the joints are sealed. One side of the filter chamber has a door that can close the chamber. This design is reasonable and facilitates the replacement of each filter unit.

[0014] Furthermore, the connections between the air intake device and the air intake pipe, the air intake pipe and the filter box, and the filter box and the air outlet pipe are all sealed. This design prevents air leakage.

[0015] Furthermore, the ventilation device also includes an automatic ventilation fan, one side of which is connected to the outside and the other side is connected to the air intake pipe. The automatic ventilation fan is powered by a power supply device and controlled by a control device. This design works in conjunction with the air intake device to prevent a situation where air cannot enter if the air intake device is blocked.

[0016] Furthermore, the ventilation device also includes a backup hand-cranked air pump, which is located at the air outlet of the air outlet pipe. This design is intended to provide air supply power via the hand-cranked air pump when the power supply is unavailable.

[0017] Compared with the prior art, the advantages of this utility model are as follows: When the ventilation device is installed indoors, the outdoor air can be purified and then introduced into the room under the action of the fan. At this time, the indoor air pressure is higher than the outdoor air pressure, and the outdoor air will not flow into the room through door gaps, window gaps, wall gaps, etc., ensuring that the indoor air is not polluted by the outdoor air. When installed outdoors, the indoor air can be purified and then discharged to the outside. At this time, the indoor air pressure is lower, and the indoor air will not flow to the outside through various gaps, ensuring that the polluted indoor air will not be directly discharged to the outside, realizing bidirectional air circulation and purification between the indoor and outdoor spaces of a sealed building.

[0018] Installing explosion-proof valves at the air inlets and outlets inside the walls can prevent excessive pressure differences between indoors and outdoors from damaging the ventilation system. Connecting an overpressure exhaust valve to the outlet valve will automatically open when the pressure difference between indoors and outdoors becomes too large, thus reducing the pressure difference.

[0019] The filter box of the ventilation unit is removable. After separating the two parts of the filter compartment sidewall, the filter media can be removed from the side or placed into the filter compartment for replacement. The folded edges at the top and bottom of the filter compartment sidewall prevent the filter media from falling out. Bolts can be tightened at the bolt holes on the top folded edge to compress the filter media and improve airtightness. Using hand-tightening bolts allows for tool-free replacement of the filter media.

[0020] The air outlet pipe is equipped with a wall mounting plate, which connects to a hand-cranked air pump, allowing the pump to be fixed to the wall. In the event of a power outage, the hand-cranked air pump allows for manual operation of the ventilation system. Attached Figure Description

[0021] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with their description, serve to explain the principles of the disclosure. These drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification. In the drawings:

[0022] Figure 1 This is a schematic diagram of the ventilation device described in this utility model.

[0023] Figure 2 This is a schematic diagram of the filter box structure described in this utility model.

[0024] 1. Air intake device; 2. Filter box; 3. Ozone disinfection unit; 4. Oil filter unit; 5. HEPA unit; 6. Activated carbon unit; 7. Air outlet; 8. Wall mounting plate; 9. Fan; 10. Balance valve; 11. Power supply device; 12. Top cover; 13. Filter chamber; 14. Bottom cover; 15. Automatic ventilation fan; 16. Backup hand-cranked air pump; 17. Air inlet pipe; 18. Air outlet pipe. Detailed Implementation

[0025] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0026] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top", 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.

[0027] Example 1

[0028] Please refer to Figure 1 and Figure 2 The ventilation device provided in this embodiment includes: an air intake device 1, a filter box 2, a wall mounting plate 8, a balance valve 10, a power supply device 11, a control device, an automatic ventilation fan 15, and a backup hand-cranked air pump 16. The air intake device 1 is a one-way air intake device and is fixed to the wall, allowing external air to enter through it. The filter box 2 is composed of three parts: an upper cover 12, a filter chamber 13, and a bottom cover 14. These three parts are fixed together by screws and / or welding and / or snap fasteners, and the joints are sealed. The filter chamber 13 has a door on one side that can close the filter chamber. Inside the filter box 2, from bottom to top, are an ozone disinfection unit 3, an oil filter unit 4, a HEPA unit 5, and an activated carbon unit 6. The filter box 2 has an air inlet at the bottom and an air outlet at the top. The air inlet 7 is connected to the air intake device 1 via an air intake pipe 17. A fan 9 is also fixed on the filter chamber 13 at the upper end of the activated carbon unit 6. Of course, the fan 9 can also be replaced by an air pump. An air outlet pipe 18 is fixed at the air outlet 7. The other end of the air outlet pipe 18 is movably fixed to the wall fixing plate 8. The balance valve 10 is set separately and is used to connect two adjacent rooms. If a single room is used, the balance valve 10 is replaced by a one-way valve to balance the air pressure in the space. When the air pressure is too high, it will discharge the air outward. One side of the automatic ventilation fan 15 is connected to the outside and the other side is connected to the air intake pipe 17. The spare hand-cranked air pump 16 is preferably set at the air outlet 7 of the air outlet pipe 18. The power supply device 11 is used to supply power to the whole device. The control device is used to control the operation of the whole device.

[0029] When in use, the fan 9 rotates and the air intake device 1 takes in air. At this time, the automatic ventilation fan 15 is closed. The outside air enters the filter box 2 through the air intake pipe 17 for filtration. The filtered air is discharged through the air outlet pipe 18. When the control system detects that the air intake is too small, the automatic ventilation fan 15 is started to increase the air intake.

[0030] As a preferred structure, both the air intake device 1 and the one-way valve are equipped with explosion-proof devices, and the connection between the air intake device 1 and the air intake pipe 17, the connection between the air intake pipe 17 and the filter box 2, and the connection between the filter box 2 and the air outlet pipe 18 are all sealed.

[0031] With the above structure, when the ventilation system is installed indoors, the fan draws purified outdoor air into the room. At this point, the indoor air pressure is higher than the outdoor air pressure, preventing outdoor air from entering through door, window, or wall gaps, thus ensuring indoor air is not polluted. Similarly, when installed outdoors, purified indoor air is exhausted outdoors. At this point, the indoor air pressure is lower, preventing indoor air from flowing out through gaps, thus preventing contaminated indoor air from being directly discharged outdoors. This achieves bidirectional airflow and purification between the indoor and outdoor environments of a sealed building. Explosion-proof valves are installed at the air inlets and outlets within the walls to prevent damage to the ventilation system from excessive pressure differences between indoors and outdoors. An overpressure exhaust valve is connected to the outlet valve, automatically opening when the pressure difference between indoors and outdoors becomes too large, reducing the pressure difference. The filter box of the ventilation system is removable. By separating the two parts of the filter compartment's side wall, the filter material can be removed from the side or placed into the filter compartment for replacement. The folded edges at the top and bottom of the filter compartment sidewalls prevent filter media from falling out. Bolts can be tightened at the bolt holes on the top folded edge to compress the filter media and improve airtightness. Hand-tightening the bolts allows for tool-free replacement of the filter media. The air outlet pipe has a wall-mounted plate for connecting a hand-cranked air pump, allowing the pump to be fixed to the wall. In the event of a power outage, the hand-cranked air pump can be used manually to operate the ventilation system.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various changes and modifications can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ventilation device, characterized in that: include: An air intake device, wherein the air intake device is a one-way air intake device, allowing outside air to enter through the air intake device; The filter box is used to filter air and is connected to the air intake device through an air intake pipe. The filter box is equipped with an ozone disinfection unit, an oil filter unit, a HEPA unit and an activated carbon unit. The filter box is also equipped with an air outlet for discharging the filtered air. A wall mounting plate is used to fix the air outlet pipe. The other end of the air outlet pipe is connected to the air outlet of the filter box, and a fan is installed at the air outlet, the opening of the air outlet pipe, or the filter box at the top of the filter unit. A one-way valve, which is set separately, is used to balance the air pressure in the space. When the air pressure is too high, it will discharge air outward. Power supply device, the power supply device being used to supply power to the entire device; A control device, which is used to control the operation of the entire device.

2. The ventilation device according to claim 1, characterized in that: Both the air intake device and the one-way valve are equipped with explosion-proof devices.

3. The ventilation device according to claim 2, characterized in that: The one-way valve can be replaced by a balancing valve.

4. The ventilation device according to claim 1, characterized in that: The filter box consists of three parts in sequence: an upper cover, a filter chamber, and a bottom cover. The three parts are fixed together by screws and / or welding and / or snap fasteners, and the joints between the three parts are sealed. The filter chamber has a door on one side that can close the filter chamber.

5. A ventilation device according to claim 1, characterized in that: The connection points between the air intake device and the air intake pipe, the connection points between the air intake pipe and the filter box, and the connection points between the filter box and the air outlet pipe are all sealed.

6. A ventilation device according to any one of claims 1-5, characterized in that: The ventilation device also includes an automatic ventilation fan, one side of which is connected to the outside and the other side is connected to the air inlet pipe. The automatic ventilation fan is powered by a power supply device and controlled by a control device.

7. A ventilation device according to claim 6, characterized in that: The ventilation device also includes a backup hand-cranked air pump, which is located at the air outlet of the air outlet pipe.

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