Intelligent fresh air epidemic prevention cabinet

Abstract

The utility model discloses an intelligent fresh air epidemic prevention cabinet, which relates to the technical field of air treatment and comprises a cabinet body, a fresh air pipeline, a first filter screen and a plurality of filter components. An air inlet and an air outlet are formed in the cabinet body; one end of the fresh air pipeline is connected with the air outlet, the other end of the fresh air pipeline extends into the building, a fan is arranged in the fresh air pipeline, and the fan is used for extracting air in the cabinet body and conveying the air into the fresh air pipeline; the first filter screen is arranged at the air inlet; the filtering assembly is arranged at the air inlet; wherein the multiple filter assemblies are arranged side by side to filter air passing through the first filter screen, and pressure sensors are arranged in the building, outside the building and between the filter assemblies and the first filter screen. According to the utility model, stable positive pressure can be formed in the building, and dust and viruses in external air are prevented from entering the building.

Description

Technical Field

[0001] The utility model relates to the technical field of air treatment, in particular to an intelligent fresh air epidemic prevention cabinet. Background Art

[0002] With the development of the animal husbandry in China, the requirements for epidemic prevention and environmental protection in livestock and poultry breeding have been continuously improved, and the proportion of farmers' breeding models has been continuously increased. Standardization and intelligence have become new development trends. Under this development background, intelligent monitoring of the livestock and poultry breeding environment has also become an important direction for the high-quality and refined development of livestock and poultry breeding. At present, the existing epidemic prevention cabinets on the market only simply filter the air in the breeding farms and do not use the fresh air function, so the effect of isolating dust and viruses in the external air is poor. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an intelligent fresh air epidemic prevention cabinet, which can form a stable positive pressure inside the building to prevent dust and viruses in the external air from entering the building.

[0004] An intelligent fresh air epidemic prevention cabinet according to an embodiment of the first aspect of the utility model includes: a cabinet body, a fresh air duct, a first filter screen, and a plurality of filter components. An air inlet and an air outlet are provided on the cabinet body; one end of the fresh air duct is connected to the air outlet, and the other end extends into the building. A fan is arranged in the fresh air duct, and the fan is used for extracting the air in the cabinet body and conveying it into the fresh air duct; the first filter screen is arranged at the air inlet; the filter components are arranged at the air inlet; wherein, the plurality of filter components are arranged side by side to filter the air after passing through the first filter screen, and pressure sensors are arranged between the interior of the building, the exterior of the building, the filter components, and the first filter screen.

[0005] An intelligent fresh air epidemic prevention cabinet according to an embodiment of the utility model has at least the following beneficial effects: the air is filtered through two levels of the first filter screen and the filter components, and after removing dust and viruses, it enters the building of the breeding farm, forming a positive pressure in the building to prevent dust and viruses in the external air from entering the building of the breeding farm through the gaps in the doors and windows, so that the organisms in the breeding farm are not easily infected by the virus. The intelligent operation is realized through the cooperation of a plurality of pressure sensors.

[0006] According to some embodiments of the utility model, the minimum particle size that the filter component can filter is smaller than the minimum particle size that the first filter screen can filter.

[0007] According to some embodiments of the utility model, a three-proof net is further arranged at the air inlet, the three-proof net is located on the side of the first filter screen away from the filter component, and the three-proof net is used to prevent the first filter screen from being damaged.

[0008] According to some embodiments of the present utility model, an installation frame is provided at the air inlet, and the first filter screen is detachably connected to the installation frame.

[0009] According to some embodiments of the present utility model, the filter assembly includes a support frame and a second filter screen. The support frame is connected to the installation frame and extends horizontally into the cabinet interior. The support frame is used to install the second filter screen.

[0010] According to some embodiments of the present utility model, the second filter screens in adjacent filter assemblies are installed in a V shape to increase the ventilation area.

[0011] According to some embodiments of the present utility model, the support frame includes an upper support frame and a lower support frame, and the second filter screen is clamped between the upper support frame and the lower support frame.

[0012] According to some embodiments of the present utility model, an upper installation position is provided at the lower end of the upper support frame, and a lower installation position is provided at the upper end of the lower support frame. The upper end of the second filter screen is embedded in the upper installation position, and the lower end of the second filter screen is embedded in the lower installation position.

[0013] According to some embodiments of the present utility model, multiple groups of the first filter screen, the filter assembly, and the installation frame are provided.

[0014] According to some embodiments of the present utility model, a rain shield is provided at the air inlet.

[0015] An intelligent fresh air epidemic prevention cabinet according to an embodiment of the present utility model has at least the following beneficial effects:

[0016] (1) Air is filtered through two levels of the first filter screen and the filter assembly, and after removing dust and viruses, it enters the building in the breeding farm, forming a positive pressure in the building to prevent dust and viruses in the outside air from entering the building in the breeding farm through the gaps in the doors and windows, making the organisms in the breeding farm not easily infected by viruses;

[0017] (2) Multiple pressure sensors are cooperated to achieve intelligent operation;

[0018] (3) The first filter screen and the second filter screen are convenient to disassemble and assemble and easy to maintain.

[0019] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0020] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0021] Figure 1 Schematic diagram of the installation structure of an embodiment of the present utility model;

[0022] Figure 2 Cross-sectional schematic diagram of an embodiment of the present utility model

[0023] Figure 3 is Figure 2 Enlarged view of part A in

[0024] Figure 4 Cross-sectional schematic diagram of the internal structure of the cabinet body of an embodiment of the present utility model

[0025] Figure 5 Schematic diagram of the filter assembly of an embodiment of the present utility model

[0026] Figure 6 Schematic diagram of the support frame of an embodiment of the present utility model

[0027] Figure 7 Schematic diagram of the installation frame of an embodiment of the present utility model.

[0028] Reference numerals in the drawings:

[0029] Cabinet body 100, air inlet 110, air outlet 120;

[0030] Fresh air duct 200;

[0031] Fan 300;

[0032] First filter screen 400;

[0033] Filter assembly 500, support frame 510, upper support frame 511, lower support frame 512, upper installation position 513, lower installation position 514, second filter screen 520;

[0034] Three-proof net 600;

[0035] Installation frame 700;

[0036] Rain shield 800. Specific implementation manners

[0037] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0038] In the description of the present utility model, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by "upper", "lower", etc., it is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0039] In the description of the present utility model, "a plurality of" means more than two. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0040] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0041] Refer to Figures 1 to 7As shown in the figure, an intelligent fresh air epidemic prevention cabinet according to an embodiment of the present utility model includes: a cabinet body 100, a fresh air duct 200, a first filter screen 400, and a plurality of filter components 500. The cabinet body 100 is formed by welding steel sections and steel plates. An air inlet 110 and an air outlet 120 are provided on the cabinet body 100. The air inlet 110 is used for air to enter, and the air outlet 120 is used for air to discharge. One end of the fresh air duct 200 is connected to the air outlet 120, and the other end extends into the building interior. The fresh air duct 200 is used to transport clean air into the building, so as to form a positive pressure inside the building and prevent dust and viruses in the outside air from entering the building. A temperature and humidity sensor is provided in the fresh air duct 200 to measure the temperature and humidity of the air entering the building. A fan 300 is provided in the fresh air duct 200. The fan 300 is used to extract the air in the cabinet body 100 and transport it into the fresh air duct 200. The fan 300 provides power for the air flow in the cabinet body 100 and the fresh air duct 200. A distribution box is provided outside the cabinet body 100 to install switches and a display. The display is used to display the readings of the temperature and humidity sensor and each pressure sensor. Both the first filter screen 400 and the filter components 500 are arranged at the air inlet 110; the first filter screen 400 and the filter components 500 are arranged in series. Among them, a plurality of filter components 500 are arranged side by side to filter the air passing through the first filter screen 400. The first filter screen 400 and the second filter screen 520 are used to jointly filter dust and viruses in the air. Pressure sensors are provided inside the building, outside the building, and between the filter components 500 and the first filter screen 400. It can be foreseen that for the pressure sensors inside and outside the building, due to measuring the air pressure difference inside and outside the building, the greater the air pressure difference inside and outside the building, the better the effect of preventing outside air from entering the building through the door and window gaps. However, it will cause the fan 300 to consume more electric energy. Therefore, the fan 300 is selected as an axial flow fan 300 with adjustable speed. When the air pressure difference inside and outside the building is less than 20 Pa, the speed of the fan 300 is increased. When the air pressure difference inside and outside the building is greater than 40 Pa, the speed of the fan 300 is reduced. The air pressure difference inside and outside the building is controlled between 20 Pa and 40 Pa to reduce the energy consumption of the fan 300. It can be foreseen that due to the entry and exit of materials and personnel, the doors of the building need to be opened and closed frequently. Therefore, when the door of the building is opened, the pressure difference inside and outside the building decreases, and the fan 300 automatically increases its speed to increase the supply of clean air into the building. When the speed of the fan 300 reaches the maximum value and the pressure difference inside and outside the building is less than 5 Pa, there is a possibility that outside air directly enters the building. Therefore, the speaker and the light in the distribution box of the epidemic prevention cabinet emit an audible and visual alarm at this time to remind the staff to pay attention to the possible leakage. The pressure sensor inside the building and the pressure sensor between the filter components 500 and the first filter screen 400 can measure the pressure difference before and after the filter components 500, so as to judge whether the filter components 500 need to be replaced.The pressure sensor outside the building and the pressure sensor between the filtration component 500 and the first filter screen 400 can measure the pressure difference before and after the first filter screen 400, thereby determining whether the first filter screen 400 needs to be replaced. The air passes through two-stage filtration to remove dust and viruses before entering the building of the farm, forming a positive pressure in the building to prevent dust and viruses in the outside air from entering the building of the farm through the gaps in the doors and windows, making it difficult for the organisms in the farm to be infected by the virus. Multiple pressure sensors are coordinated to achieve intelligent operation.

[0042] Referring to Figure 3 As shown, it can be understood that the minimum particle size that the filtration component 500 can filter is smaller than the minimum particle size that the first filter screen 400 can filter. The filtration component 500 and the first filter screen 400 form a multi-stage filtration. By using filters of different levels, different sizes of particles in the air can be gradually removed. The first filter screen 400 mainly filters larger particles such as dust and impurities, providing pretreatment for the subsequent filtration component 500, thereby improving the overall filtration efficiency. Through step-by-step filtration, the burden on the filtration component 500 can be reduced, avoiding rapid clogging or damage caused by directly processing a large amount of unfiltered particles, and thus extending the service life of the entire system.

[0043] Referring to Figure 1 and Figure 3 As shown, it can be understood that a three-proof net 600 is also provided at the air inlet 110. The three-proof net 600 is located on the side of the first filter screen 400 away from the filtration component 500. The three-proof net 600 is used to prevent the first filter screen 400 from being damaged. The three-proof net 600 is made of stainless steel wire and its aperture is 4 mm to 15 mm. The function of the three-proof net 600 is to block mice, insects, birds, etc. from entering the air inlet 110.

[0044] Referring to Figure 3 and Figure 7 As shown, it can be understood that an installation frame 700 is provided at the air inlet 110. The first filter screen 400 is detachably connected to the installation frame 700. The installation frame 700 is welded into a square by steel plates. A plurality of buckles are provided inside the installation frame 700. The first filter screen 400 is composed of a metal frame and non-woven fabric arranged inside the metal frame. It can be foreseen that the non-woven fabric can be replaced with materials such as nylon mesh and fiberglass mesh. The metal frame cooperates with the buckles to fix the first filter screen 400 in the installation frame 700. Adopting the buckle connection method is convenient for replacing the first filter screen 400 after it reaches the service life.

[0045] Referring to Figure 5As shown, it can be understood that the filtering component 500 includes a support frame 510 and a second filter screen 520. The support frame 510 is connected to the installation frame 700 and extends horizontally into the cabinet 100. The support frame 510 is used to install the second filter screen 520. Since the force on the support frame 510 is relatively small, using a plastic material can also meet its strength requirements and reduce the equipment cost. The support frame 510 plays a role in fixedly supporting the second filter screen 520.

[0046] Referring to Figure 3 As shown, it can be understood that the second filter screens 520 in adjacent filtering components 500 are installed in a V shape to increase the ventilation area, reduce the resistance when air flows through the second filter screen 520, and reduce the energy consumption of the fan 300. The arrangement of the second filter screens 520 is a conventional technical means and will not be elaborated here. A baffle is connected to the support frame 510, and the baffle is used to close the gaps at the upper and lower ends between adjacent second filter screens 520. The baffle plays a role in blocking air from bypassing the second filter screen 520 and preventing air from directly entering the cabinet 100.

[0047] Referring to Figure 6 and Figure 7 As shown, it can be understood that the support frame 510 includes an upper support frame 511 and a lower support frame 512. A vertical support is also provided between the upper support frame 511 and the lower support frame 512 to enhance the structural stability. The upper support frame 511 is located directly above the lower support frame 512. The second filter screen 520 is clamped between the upper support frame 511 and the lower support frame 512. The upper support frame 511 and the lower support frame 512 are integrally injection-molded respectively. The second filter screen 520 selects common ultra-fine fiberglass paper as the filtering material. The upper support frame 511 is bolted to the installation frame 700, and the lower support frame 512 is bolted to the installation frame 700. Using the upper support frame 511 and the lower support frame 512 to fix the second filter screen 520 facilitates the disassembly and assembly of the second filter screen 520 from the side and is beneficial for replacement and maintenance.

[0048] Referring to Figure 6 and Figure 7As shown, it can be understood that an upper mounting position 513 is provided at the lower end of the upper support frame 511. The upper mounting position 513 is a groove opened at the lower end of the upper support frame 511, and the shape and size of the upper mounting position 513 match those of the second filter screen 520. So that the second filter screen 520 can just be embedded into the upper mounting position 513. A lower mounting position 514 is provided at the upper end of the lower support frame 512. The lower mounting position 514 is a groove opened at the upper end of the lower support frame 512, and the shape and size of the lower mounting position 514 match those of the second filter screen 520. So that the second filter screen 520 can just be embedded into the lower mounting position 514. The upper end of the second filter screen 520 is embedded into the upper mounting position 513, and the lower end of the second filter screen 520 is embedded into the lower mounting position 514. The frame of the second filter screen 520 is made of plastic material and has a certain elastic deformation ability to be clamped between the upper support frame 511 and the lower support. It can be foreseen that sealing strips are provided in both the upper mounting position 513 and the lower mounting position 514. The function of setting the sealing strip between the upper support frame 511 and the second filter screen 520 is to block air from passing through the gap between the upper support frame 511 and the second filter screen 520. The function of setting the sealing strip between the lower support frame 512 and the second filter screen 520 is to block air from passing through the gap between the lower support frame 512 and the second filter screen 520, improving the filtering effect.

[0049] Referring to Figure 1 As shown, it can be understood that since the area at the air inlet 110 is larger than the area of the first filter screen 400. Therefore, 4 groups of the first filter screen 400, the filtering assembly 500, and the mounting frame 700 are arranged in one air inlet 110. The 4 groups of the first filter screen 400, the filtering assembly 500, and the mounting frame 700 are arranged in a square. Since large-sized filter screens and filtering assemblies 500 are costly and inconvenient to transport, and the area of the air inlet 110 is related to the ventilation efficiency and cannot be reduced, so 4 groups of smaller-sized first filter screens 400, filtering assemblies 500, and mounting frames 700 are arranged in the air inlet 110 to filter air. It can be foreseen that the intake area can also be increased by setting two air inlets 110 to increase the flow rate of the purified air and improve the purification efficiency. The increase in air flow is beneficial to increasing the pressure difference between the inside and outside of the building and reducing the probability of direct entry of outside air into the building.

[0050] Referring to Figure 1 As shown, it can be understood that a rain shield 800 is provided at the air inlet 110, and the rain shield 800 is welded to the cabinet 100. Since the fan 300 makes relatively loud noise and needs to draw air from the outside, the cabinet 100 is usually set outdoors. Outdoor rain protection generally prevents rain from getting wet by building a rain shelter. Since the cabinet 100 is formed by welding steel plates and has a waterproof function, only the air inlet 110 needs to be protected from rain. Therefore, no other rain protection measures are required after setting the rain shield 800, reducing the construction cost.

[0051] It can be foreseen that in some other embodiments of the present utility model, pressure sensors are provided on both sides of the second filter screen 520 to measure the pressure difference on both sides of the second filter screen 520. When it is detected that the pressure difference on both sides of the second filter screen 520 reaches a preset value, it indicates that the second filter screen 520 should be replaced.

[0052] Usage steps: Driven by the fan, air passes through two - stage filtration of the first filter screen 400 and the second filter screen 520, removes dust and viruses, and then enters the building of the breeding farm from the fresh - air duct 200, forming a positive pressure in the building to prevent dust and viruses in the outside air from entering the building of the breeding farm through the gaps in the doors and windows, making the organisms in the breeding farm not easily infected by viruses. The pressure sensors inside and outside the building measure the air - pressure difference between the inside and outside of the building, and by adjusting the rotation speed of the fan 300, the air - pressure difference between the inside and outside of the building is maintained at a preset value. The pressure sensors inside the building and the pressure sensors between the filter assembly 500 and the first filter screen 400 measure the pressure difference before and after the filter assembly 500, so as to judge whether the filter assembly 500 needs to be replaced. The pressure sensors outside the building and the pressure sensors between the filter assembly 500 and the first filter screen 400 measure the pressure difference before and after the first filter screen 400, so as to judge whether the first filter screen 400 needs to be replaced.

[0053] The embodiments of the present utility model have been described in detail above with reference to the drawings. However, the present utility model is not limited to the above - mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present utility model.

Claims

1. An intelligent fresh air epidemic prevention cabinet, characterized in that Comprising: A cabinet body (100) provided with an air inlet (110) and an air outlet (120) thereon. A fresh air duct (200) with one end connected to the air outlet (120) and the other end extending into the building interior. A blower (300) is arranged in the fresh air duct (200), and the blower (300) is used to extract the air in the cabinet body (100) and convey it into the fresh air duct (200). A first filter screen (400) arranged at the air inlet (110). A plurality of filter components (500) arranged at the air inlet (110). Among them, the plurality of filter components (500) are arranged side by side to filter the air after passing through the first filter screen (400). Pressure sensors are arranged inside the building, outside the building, and between the filter components (500) and the first filter screen (400).

2. The intelligent fresh air epidemic prevention cabinet according to claim 1, characterized in that: The minimum particle size that the filter component (500) can filter is smaller than the minimum particle size that the first filter screen (400) can filter.

3. The intelligent fresh air epidemic prevention cabinet according to claim 1, characterized in that: A three-proof net (600) is also arranged at the air inlet (110). The three-proof net (600) is located on the side of the first filter screen (400) away from the filter component (500), and the three-proof net (600) is used to prevent the first filter screen (400) from being damaged.

4. The intelligent fresh air epidemic prevention cabinet according to claim 1, wherein: An installation frame (700) is arranged at the air inlet (110), and the first filter screen (400) is detachably connected to the installation frame (700).

5. The intelligent fresh air epidemic prevention cabinet according to claim 4, wherein: The filter component (500) includes a support frame (510) and a second filter screen (520). The support frame (510) is connected to the installation frame (700) and extends horizontally into the cabinet body (100) interior, and the support frame (510) is used to install the second filter screen (520).

6. The intelligent fresh air epidemic prevention cabinet according to claim 5, characterized in that: The second filter screens (520) in adjacent filter components (500) are installed in a V shape to increase the ventilation area.

7. The intelligent fresh air epidemic prevention cabinet according to claim 5, characterized in that: The support frame (510) includes an upper support frame (511) and a lower support frame (512), and the second filter screen (520) is clamped between the upper support frame (511) and the lower support frame (512).

8. The intelligent fresh air epidemic prevention cabinet according to claim 7, characterized in that: An upper installation position (513) is arranged at the lower end of the upper support frame (511), and a lower installation position (514) is arranged at the upper end of the lower support frame (512). The upper end of the second filter screen (520) is embedded in the upper installation position (513), and the lower end of the second filter screen (520) is embedded in the lower installation position (514).

9. The intelligent fresh air epidemic prevention cabinet according to claim 8, wherein: Multiple groups of the first filter screen (400), the filter component (500), and the installation frame (700) are provided.

10. The intelligent fresh air epidemic prevention cabinet according to claim 1, wherein: A rain shield (800) is arranged at the air inlet (110).

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