Ventilation system of civil air defense equipment

Abstract

The invention discloses a ventilation system for civil air defense equipment, which comprises a main machine, a filtering device, a rotary driving part and a spraying device, and is characterized in that a ventilation channel is formed in the main machine; the filtering device comprises a plurality of filtering assemblies rotatably arranged in the ventilation channel, the filtering assemblies are sequentially arranged, and the two sides of the filtering assemblies are combined to form a first filtering face and a second filtering face respectively; the rotary driving part is connected with each filtering assembly and is used for driving each filtering assembly to synchronously turn over so as to switch the positions of the first filtering surface and the second filtering surface; the spraying device is located on the side, close to an outlet of the ventilation channel, of the filtering device, and a nozzle of the spraying device corresponds to the filtering device and is used for spraying cleaning liquid. The filtering device can be effectively dredged and cleaned, it is ensured that the filtering device continuously keeps good filtering efficiency and performance, efficient and continuous air filtering is achieved, and the device is suitable for various occasions needing air purification.

Description

Technical Field

[0001] The present invention relates to the technical field of civil air defense ventilation equipment, and in particular to a ventilation and air exchange system for civil air defense equipment. Background Art

[0002] In our daily life and in the field of industrial production, ventilation-related equipment plays a vital role. These equipment can not only effectively improve the indoor air quality and ensure that our living and working environment remains comfortable and pleasant, but also prevent and reduce the occurrence of fire and explosion accidents, thus playing an important role in protecting the environment and people’s lives and property.

[0003] The patent with publication number CN214209853U provides a ventilation device for civil air defense equipment, including a multi-layer sintered metal filter, a plate-type medium-efficiency air filter, an activated carbon filter plate, an iron baffle and a magnet. A plate-type medium-efficiency air filter is installed on the left side of the filter box, and a multi-layer sintered metal filter is installed on the right side of the activated carbon filter plate. An iron baffle is installed inside the air inlet shell, and a magnet is adsorbed on the lower side of the right end surface of the iron baffle. This design solves the problem that the original ventilation device does not have multi-stage filtering capability, which makes it easy for dust and odor in the air to enter the interior of the civil air defense project during ventilation. It has multi-stage filtering capability to prevent dust and odor in the external air from entering the interior of the civil air defense project.

[0004] However, as the use time increases, existing ventilation equipment often becomes clogged due to accumulated dust. The filter structure of the ventilation equipment is usually designed and installed inside it, and needs to be shut down and then disassembled for cleaning, which causes inconvenience in the cleaning process and may affect the normal operation and maintenance efficiency of the equipment. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and propose a ventilation system for civil air defense equipment to solve the technical problem in the prior art that the ventilation equipment will be clogged with dust after being used for a long time and is inconvenient to clean.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a ventilation system for civil air defense equipment, comprising: a main unit, a filter device, a rotating drive component and a spray device, wherein a ventilation channel is formed in the main unit; the filter device comprises a plurality of filter components rotatably arranged in the ventilation channel, wherein the plurality of filter components are arranged in sequence and are respectively combined on both sides to form a first filter surface and a second filter surface; the rotating drive component is connected to each of the filter components and is used to drive each of the filter components to flip synchronously to switch the positions of the first filter surface and the second filter surface; the spray device is located on a side of the filter device close to the outlet of the ventilation channel, and its nozzle corresponds to the filter device and is used to spray cleaning liquid.

[0007] In some embodiments, the main machine includes an air duct, a main ventilation box and a secondary ventilation box. The air outlet end of the air duct is connected to the air inlet ends of the main ventilation box and the secondary ventilation box. The main ventilation box and the secondary ventilation box are both equipped with the filtering device, the rotating drive component and the spraying device.

[0008] In some embodiments, the air inlet ends of the main ventilation box and the secondary ventilation box are respectively provided with a first sealing baffle and a second sealing baffle, the first sealing baffle and the second sealing baffle are respectively arranged in the main ventilation box and the secondary ventilation box, and are respectively used to open or block the air inlets of the main ventilation box and the secondary ventilation box.

[0009] In some embodiments, the internal passage size of the primary ventilation box is larger than the internal passage size of the secondary ventilation box.

[0010] In some embodiments, the cross-sections of the internal passages of the main ventilation box and the secondary ventilation box are both square in design.

[0011] In some embodiments, a plurality of the filter assemblies are arranged in sequence along the width direction of the ventilation channel. When the plurality of filter assemblies are rotated to be in the same plane, two adjacent filter assemblies fit tightly against each other.

[0012] In some embodiments, each of the filter components includes a rotating shaft, a filter element and a sealing gasket. The filter element is rotatably connected to the main unit via a rotating shaft. Sealing gaskets are provided on both sides of the filter plate. When multiple filter elements are rotated to be in the same plane, the sides of two adjacent filter elements are tightly connected via the sealing gaskets.

[0013] In some embodiments, when the plurality of filter elements are rotated to be located in the same plane, the first filter surface and the second filter surface formed by the combination of the two sides of the plurality of filter components are both planes.

[0014] In some embodiments, the rotating drive member includes a plurality of transmission members and a drive motor, each of the transmission members includes two pulleys and a belt, the two pulleys are respectively connected to two adjacent filter components, the belt is sleeved between the two pulleys, and the drive motor is connected to one of the rotating shafts for driving the filter components to rotate, so as to drive each of the filter components to rotate synchronously through the transmission members.

[0015] In some embodiments, the spray device includes a plurality of nozzles, which are arranged in sequence along the length direction of the spray device, are located on an upper side of the rotating drive member, and are inclined downward toward the spray device.

[0016] Compared with the prior art, the ventilation system for civil air defense equipment provided by the present invention is provided with a main unit, a filter device, a rotating drive member and a spray device. A ventilation channel and a filter device are provided inside the main unit. The filter device is composed of a plurality of rotatable filter components. The plurality of filter components are arranged in order to form a first filter surface and a second filter surface. The rotating drive member connects the filter components and can synchronously drive each filter component to flip to realize the mutual switching of the first filter surface and the second filter surface, so that the first filter surface and the second filter surface can perform filtering work alternately to improve the filtering efficiency and extend the service life of the filter component. The system also includes a spray device, whose nozzle is aligned with the filter device, which is used to spray a cleaning liquid on the other side of the filter device during the filtering process to remove dust and other pollutants accumulated on the filter surface, which not only improves the filtering efficiency, but also reduces the maintenance cost and time.

[0017] When the system is in use, the spray device is located on the side of the filter device close to the ventilation channel outlet, thereby avoiding contact between the spray device and dust, keeping it clean and in an efficient working state. In actual use, by operating the rotating drive member, the side of the filter device that needs to be cleaned can be adjusted to a position close to the channel outlet, and the spray device sprays on the side of the filter device close to the ventilation channel outlet, performing a reverse spraying cleaning action. This process can make full use of the airflow flowing from the ventilation channel inlet to the outlet, and with the help of the power of this airflow, effectively dredge and clean the filter device, ensuring that it continues to maintain the best filtering efficiency and performance, achieving efficient and continuous air filtration, and is suitable for various occasions requiring air purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the ventilation system for civil air defense equipment provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the overall top view structure of the ventilation system for civil air defense equipment provided by an embodiment of the present invention; Figure 3 It is a rear view structural diagram of the ventilation system for civil air defense equipment provided by an embodiment of the present invention; Figure 4 It is a schematic diagram of the main cross-sectional structure of the ventilation system for civil air defense equipment provided by an embodiment of the present invention; Figure 5 2 is a schematic structural diagram of a filter device of a ventilation system for civil air defense equipment provided by an embodiment of the present invention when it is turned over; Figure 6 It is a schematic diagram of the side view installation structure of the filter device of the ventilation system of the civil air defense equipment provided by an embodiment of the present invention; Figure 7 It is a schematic diagram of the structure of a filtering device of a ventilation system for civil air defense equipment provided in an embodiment of the present invention.

[0019] Description of reference numerals: 1. Main engine; 11. Air duct; 12. Main ventilation box; 13. Secondary ventilation box; 14. First sealing baffle; 15. Second sealing baffle; 2. Filter device; 21. Rotating shaft; 22. Filter element; 23. Sealing pad; 3. Rotating drive member; 31. Pulley; 32. Belt; 33. Driving motor; 4. Spray device. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] In order to solve the technical problem that ventilation equipment will be clogged with dust after being used for a long time and is inconvenient to clean, the present invention provides a ventilation system for civil air defense equipment, which can effectively dredge and clean the filter device to ensure that it continues to maintain the best filtering efficiency and performance, thereby achieving efficient and continuous air filtration, and is suitable for various occasions requiring air purification.

[0022] See also Figures 1 to 4The ventilation system of civil air defense equipment includes: a main unit 1, a filter device 2, a rotary drive member 3 and a spray device 4, wherein a ventilation channel is formed in the main unit 1; the filter device 2 includes a plurality of filter components rotatably arranged in the ventilation channel, and the plurality of filter components are arranged in sequence, and the two sides are respectively combined to form a first filter surface and a second filter surface; the rotary drive member 3 is connected to each of the filter components, and is used to drive each of the filter components to flip synchronously to switch the positions of the first filter surface and the second filter surface; the spray device 4 is located on a side of the filter device 2 close to the outlet of the ventilation channel, and its nozzle corresponds to the filter device 2, and is used to spray cleaning liquid.

[0023] In this solution, a ventilation channel is designed inside the main unit 1 to ensure air circulation. The filter device 2 includes a plurality of filter components, which are rotatably arranged in the ventilation channel and arranged in an orderly manner. The two sides are respectively combined to form a first filter surface and a second filter surface. The rotating drive member 3 is connected to each filter component, which can synchronously drive each filter component to flip to achieve mutual switching between the first filter surface and the second filter surface, so that the first filter surface and the second filter surface can perform filtering work alternately to improve the filtering efficiency and extend the service life of the filter component; in addition, the device is also provided with a spray device 4, which is located on the side of the filter device 2 close to the outlet of the ventilation channel, and the nozzle corresponds to the filter device 2. During the filtering process, the spray device 4 can spray cleaning liquid on the other side of the filter device 2 to remove dust and other pollutants accumulated on the filter surface, which not only improves the filtering efficiency but also reduces maintenance costs and time.

[0024] By designing the spray device 4 to be located on the side of the filter device 2 close to the ventilation channel outlet, it is possible to avoid direct contact between the spray device 4 and the dust, thereby ensuring that the spray device 4 can maintain its clean state and can efficiently perform its job duties. During the cleaning and maintenance process, by operating the rotating drive member 3, the side of the filter device 2 that needs to be cleaned can be flexibly adjusted to a position close to the ventilation channel outlet. At this time, the spray device 4 will start spraying on the side of the filter device 2 close to the ventilation channel outlet and perform a reverse spraying cleaning action. This process can make full use of the airflow flowing from the ventilation channel inlet to the outlet. With the help of the power of this airflow, the filter device 2 can be effectively unblocked and cleaned, which can ensure that the filter device 2 continues to maintain the best filtering efficiency and performance, thereby providing a strong guarantee for the stable operation of the entire system.

[0025] See also Figures 1 to 3In this embodiment, the main unit 1 includes an air duct 11, a main ventilation box 12 and a secondary ventilation box 13. The air outlet end of the air duct 11 is connected to the air inlet ends of the main ventilation box 12 and the secondary ventilation box 13, so that the ventilation channel is actually divided into two independent channels, namely: a main ventilation channel formed in the main ventilation box 12 and a secondary ventilation channel formed in the secondary ventilation box 13. Air can smoothly enter the two ventilation boxes from the air duct 11. The main ventilation box 12 and the secondary ventilation box 13 are both provided with the filter device 2, the rotating drive member 3 and the spray device 4 to achieve filtering of the gas in the main ventilation channel and the secondary ventilation channel, and cleaning of the filter device 2. In order to further optimize the control of air circulation, the air inlet ends of the main ventilation box 12 and the secondary ventilation box 13 are respectively provided with a first sealing baffle 14 and a second sealing baffle 15. The first sealing baffle 14 and the second sealing baffle 15 are respectively arranged in the main ventilation box 12 and the secondary ventilation box 13, and are respectively used to open or block the air inlets of the main ventilation box 12 and the secondary ventilation box 13. When in use, the air inlets of the main ventilation box 12 and the secondary ventilation box 13 can be opened or blocked as needed, thereby achieving precise control of the air circulation path and ensuring efficient operation of the ventilation system.

[0026] It should be noted that by respectively providing the first sealing baffle 14 and the second sealing baffle 15 at the air inlet end of the main ventilation box 12 and the secondary ventilation box 13, the first sealing baffle or the second sealing baffle can be cleverly used to close the main ventilation box 12 or the secondary ventilation box 13 during cleaning, so that the filter element 22 can be driven to continuously flip by the rotating driving member 3, and the filter element 22 can be flushed at multiple angles. This design not only improves the cleaning efficiency, but also provides a variety of different cleaning methods, thereby ensuring the cleanliness of the equipment and the convenience of maintenance.

[0027] Furthermore, in some embodiments, the internal channel size of the main ventilation box 12 is larger than the internal channel size of the secondary ventilation box 13, that is, the size of the main ventilation channel is larger than the size of the secondary ventilation channel, so that the main ventilation box 12 can handle a larger volume of air flow, while the secondary ventilation box 13 can focus on handling the air circulation of a specific area or a smaller space. When a larger ventilation duct is required, the second sealing partition is used to block the secondary ventilation duct, and when a smaller ventilation duct is required, the first sealing partition 14 is used to block the main ventilation duct.

[0028] See also Figures 4 to 7Preferably, in this embodiment, a plurality of the filter components are arranged in sequence along the width direction of the ventilation channel. When the plurality of filter components rotate to be in the same plane, two adjacent filter components fit closely to each other, thereby achieving a better sealing effect, so that the filter components can filter. Specifically, each of the filter components includes a rotating shaft 21, a filter element 22 and a sealing gasket 23. The filter element 22 is connected to the host 1 through the rotating shaft 21, allowing the filter element 22 to rotate around the rotating shaft 21. Sealing gaskets 23 are provided on both sides of the filter plate. When the plurality of filter elements 22 rotate to be in the same plane, the sides of the two adjacent filter elements 22 are closely connected through the sealing gasket 23, which can not only prevent the generation of gaps between the filter elements 22 during the filtering process, but also allow the filter elements 22 to rotate flexibly, so that the filter elements 22 can be rotated to the same plane to efficiently perform filtering work.

[0029] It should be noted that, in the present embodiment, the filter element 22 may be a plate-shaped filter screen, a plate-shaped sponge filter or a plate-shaped fiber filter bag, etc., and the number of the filter elements 22 provided in each ventilation box is not limited.

[0030] Furthermore, in some embodiments, when multiple filter elements 22 rotate to be in the same plane, the first filter surface and the second filter surface formed by the combination of the two sides of the plurality of filter components are both planes, so that the filter component can form two continuous and flat filter surfaces when working, and the two filter surfaces can be used alternately during the filtering process, thereby extending the service life of the filter component. Due to the continuity and flatness of the filter surface, the filtering resistance can be effectively reduced, and the overall performance of the ventilation system can be improved.

[0031] Furthermore, in order to accommodate the flip installation of the filter element 22 , the internal channel cross-sections of the main ventilation box 12 and the secondary ventilation box 13 are both designed to be square.

[0032] See also Figure 6 In this embodiment, the rotary drive member 3 includes a plurality of transmission members and a drive motor 33. Each transmission assembly is composed of two pulleys 31 and a belt 32. The two pulleys 31 are respectively fixedly connected to the rotating shafts 21 of two adjacent filter assemblies. The belt 32 is cleverly sleeved between the two pulleys 31 to form a stable transmission loop. The drive motor 33, as the core of the entire rotary drive system, is directly connected to the rotating shaft 21 of one of the filter assemblies and is responsible for providing power. When the drive motor 33 is started, it can effectively drive all filter elements 22 to rotate synchronously so as to adjust the positions of the first filter surface and the second filter surface.

[0033] Preferably, in the present embodiment, the spray device comprises a plurality of nozzles, specifically, the plurality of nozzles are located at the upper part of one side of the rotary drive member 3, and are tilted downwardly toward the spray device 4. The plurality of nozzles are all nozzles, which are connected by a water pipe, and clean water can be delivered to each nozzle. The plurality of nozzles are arranged in sequence along the transverse direction of the ventilation channel and along the length direction of the spray device 4, so that the spray device can evenly cover the entire surface of the filter assembly, ensuring that the filter material is fully wetted and cleaned during the filtering process. The tilted setting and orderly arrangement of the nozzles not only improve the spraying efficiency, but also reduce the waste of water, achieving the dual benefits of environmental protection and economy. In addition, this arrangement is also convenient for regular inspection and replacement of the filter assembly, ensuring the stable operation and long-term use of the system. In practical applications, the number and type of the filter assembly can be flexibly adjusted according to different environmental requirements and filtering requirements to achieve the best ventilation effect.

[0034] In order to achieve sewage treatment, sewage discharge pipes are also arranged in the main ventilation box and the secondary ventilation box of the present invention at positions corresponding to the filtering device, and the outlets of the sewage discharge pipes are connected to the sewage pool. In this way, sewage can be effectively collected and transported to the designated treatment facilities.

[0035] In addition, the system also incorporates intelligent control technology, which can automatically adjust the spraying pattern and intensity of the spray device according to the real-time operating data of the filter device and the monitored ambient air quality. Through the built-in monitoring sensor to continuously track the filter efficiency and the degree of contamination of the filter surface, the intelligent control technology can accurately adjust the consumption of the cleaning fluid to ensure the efficient use of resources and the long-term operation of the filter device. At the same time, the system is also equipped with an automatic fault detection function, which can promptly detect and report abnormal conditions of the filter device and the spray device to ensure the continuous and stable operation of the air purification system.

[0036] The present invention is provided with a main unit 1, a filter device 2, a rotary drive member 3 and a spray device 4. A ventilation channel and a filter device 2 are provided inside the main unit 1. The filter device 2 is composed of a plurality of rotatable filter components, and the plurality of filter components are arranged in order to form a first filter surface and a second filter surface. The rotary drive member 3 is connected to the filter components, and can synchronously drive each filter component to flip, so as to realize the mutual switching of the first filter surface and the second filter surface, so that the first filter surface and the second filter surface can perform filtering work alternately, so as to improve the filtering efficiency and extend the service life of the filter component. The system also includes a spray device 4, whose nozzle is aimed at the filter device 2, and is used to spray a cleaning liquid on the other side of the filter device 2 during the filtering process to remove dust and other pollutants accumulated on the filter surface, which not only improves the filtering efficiency, but also reduces the maintenance cost and time.

[0037] When the system is in use, the spray device 4 is located on the side of the filter device 2 close to the ventilation channel outlet, thereby avoiding contact between the spray device 4 and dust, so that it can maintain a clean and efficient working state. In actual use, by operating the rotating drive member 3, the side of the filter device 2 that needs to be cleaned can be adjusted to a position close to the channel outlet, and the spray device 4 sprays on the side of the filter device 2 close to the ventilation channel outlet, performing a reverse spraying cleaning action. This process can make full use of the airflow flowing from the ventilation channel inlet to the outlet, and with the help of the power of this airflow, effectively dredge and clean the filter device 2, ensuring that it continues to maintain the best filtering efficiency and performance, achieving efficient and continuous air filtration, and is suitable for various occasions requiring air purification.

[0038] In the description of the present application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 therefore cannot be understood as a limitation on the present application. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0039] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0040] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A ventilation system for civil air defense equipment, characterized in that: include: A main unit, wherein a ventilation passage is formed in the main unit; A filter device, the filter device comprising a plurality of filter components rotatably arranged in the ventilation channel, the plurality of filter components being arranged in sequence, and the two sides of the filter components are respectively combined to form a first filter surface and a second filter surface; A rotating driving member, the rotating driving member is connected to each of the filter assemblies and is used to drive each of the filter assemblies to flip synchronously to switch the positions of the first filter surface and the second filter surface; as well as, A spray device is located on a side of the filter device close to the outlet of the ventilation channel, and its nozzle corresponds to the filter device and is used for spraying cleaning liquid.

2. The ventilation system for civil air defense equipment according to claim 1, characterized in that: The main machine includes an air duct, a main ventilation box and a secondary ventilation box. The air outlet end of the air duct is connected to the air inlet ends of the main ventilation box and the secondary ventilation box. The main ventilation box and the secondary ventilation box are both provided with the filtering device, the rotating drive component and the spraying device.

3. The ventilation system for civil air defense equipment according to claim 2, characterized in that: The air inlet ends of the main ventilation box and the secondary ventilation box are respectively provided with a first sealing baffle and a second sealing baffle. The first sealing baffle and the second sealing baffle are respectively arranged in the main ventilation box and the secondary ventilation box, and are respectively used to open or block the air inlets of the main ventilation box and the secondary ventilation box.

4. The ventilation system for civil air defense equipment according to claim 3, characterized in that: The internal passage size of the main ventilation box is greater than the internal passage size of the secondary ventilation box.

5. The ventilation system for civil air defense equipment according to claim 4, characterized in that: The internal passage cross-sections of the main ventilation box and the secondary ventilation box are both square in design.

6. The ventilation system for civil air defense equipment according to claim 1, characterized in that: A plurality of the filter assemblies are arranged in sequence along the width direction of the ventilation channel. When the plurality of filter assemblies are rotated to be in the same plane, two adjacent filter assemblies are closely fitted to each other.

7. The ventilation system for civil air defense equipment according to claim 6, characterized in that: Each of the filter components includes a rotating shaft, a filter element and a sealing gasket. The filter element is rotatably connected to the main engine via the rotating shaft. Sealing gaskets are provided on both sides of the filter plate. When multiple filter elements are rotated to be in the same plane, the sides of two adjacent filter elements are tightly connected via the sealing gaskets.

8. The ventilation system for civil air defense equipment according to claim 7, characterized in that: When the plurality of filter elements are rotated to be located in the same plane, the first filter surface and the second filter surface formed by the combination of the two sides of the plurality of filter components are both planes.

9. The ventilation system for civil air defense equipment according to claim 8, characterized in that: The rotating drive member includes a plurality of transmission members and a driving motor, each of the transmission members includes two pulleys and a belt, the two pulleys are respectively connected to two adjacent filter assemblies, the belt is sleeved between the two pulleys, and the driving motor is connected to one of the rotating shafts for driving the filter assembly to rotate, so as to drive each of the filter assemblies to rotate synchronously through the transmission member.

10. The ventilation system for civil air defense equipment according to claim 1, characterized in that: The spray device comprises a plurality of nozzles, which are arranged in sequence along the length direction of the spray device. The plurality of nozzles are located at an upper part of one side of the rotary drive member and are inclined downward toward the spray device.

Images