Civil air defense construction ventilation pipeline filter screen cleaning device

Abstract

The utility model relates to the technical field of cleaning devices, and discloses a civil air defense engineering ventilation pipeline filter screen cleaning device which comprises universal wheels, a supporting bottom plate is fixedly installed at the tops of the universal wheels, a supporting rod is fixedly installed at the top of the supporting bottom plate, and a cleaning mechanism is fixedly installed at the top of the supporting rod. And a collecting mechanism is arranged at the top of the supporting bottom plate. According to the civil air defense engineering ventilation pipeline filter screen cleaning device, through the arranged cleaning mechanism, in the using process, air-water mixed pulse cleaning can be achieved through combination of an air-water mixed pulse cleaning device, a conveying pipe and a spray head, a filter screen can be effectively cleaned in a compressed air and water mist mixed spraying mode, soaking liquid does not need to be replaced, and the cleaning efficiency is improved. The water consumption is reduced, the waste water amount is further reduced, the waste water treatment cost is reduced, meanwhile, dust particles can be wrapped by water mist, raised dust is reduced, water saving is achieved, and meanwhile compared with traditional wet cleaning, the drying time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, specifically a cleaning device for the filter screen of ventilation ducts in civil defense projects. Background Technology

[0002] The air duct filter cleaning device for civil defense projects is a device specifically designed for cleaning and maintaining the air filter screens in the ventilation system of civil defense projects (such as air-raid shelters, underground bunkers, etc.). Due to long-term use, the filter screens will accumulate dust, particulate matter, oil, mold, and even harmful substances (such as chemical agents or radioactive dust). The cleaning device can efficiently remove these pollutants, increase ventilation, and restore smooth airflow.

[0003] In existing technologies, when cleaning the filters of ventilation ducts in civil defense projects, wet cleaning methods are usually used. After disassembling the filter, it is soaked in a solution containing a neutral detergent (pH 6-8) for 10-15 minutes, and then rinsed with a low-pressure spray gun (0.3 MPa) or an ultrasonic cleaner to remove surface impurities. After rinsing and disinfection, it is allowed to air dry naturally or be dried with hot air. However, in actual use, this method consumes a lot of water. When replacing the filter, it is necessary to repeatedly change the soaking solution. In addition, the low-pressure water spray method consumes a lot of water and increases the cost of wastewater treatment. Therefore, it is necessary to improve the filter cleaning device for ventilation ducts in civil defense projects to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a cleaning device for the filter screen of ventilation ducts in civil defense projects, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cleaning device for ventilation duct filters in civil defense projects, including casters, a support base plate fixedly installed on the top of the casters, a support rod fixedly installed on the top of the support base plate, a cleaning mechanism fixedly installed on the top of the support rod, and a collection mechanism provided on the top of the support base plate.

[0006] Preferably, the cleaning mechanism includes a top platform, which is fixedly installed on the top of the support rod. The top platform has a storage groove and a sloping bottom groove inside. An air-water mixed pulse cleaning device and a positioning stud are fixedly installed on the top of the top platform. A delivery pipe is provided on the left side of the air-water mixed pulse cleaning device. A nozzle is fixedly installed at the end of the delivery pipe away from the air-water mixed pulse cleaning device. A threaded cap is installed on the external thread of the positioning stud. An installation frame is provided on the outside of the positioning stud. A drain hose is fixedly installed at the bottom of the top platform.

[0007] Preferably, the internal space of the sloping bottom groove corresponds to the size of the mounting frame, and the mounting frame is slidably installed inside the sloping bottom groove.

[0008] Preferably, the top of the mounting frame is provided with corner plates, and the corner plates provided on the top of the mounting frame are symmetrically distributed at the four corners of the top of the mounting frame, and the positioning studs are slidably installed inside the corner plates provided on the top of the mounting frame.

[0009] Preferably, the bottom of the mounting frame is provided with filter holes, and the filter holes are evenly distributed inside the bottom plate of the mounting frame.

[0010] Preferably, the collection mechanism includes a waste liquid tank, which is disposed on the top of the supporting base plate. The top of the waste liquid tank has a liquid inlet, and a drain pipe is fixedly installed on the front of the waste liquid tank. A threaded cap is threadedly installed on the end of the drain pipe away from the waste liquid tank.

[0011] Preferably, the diameter of the inlet is larger than the diameter of the drain hose, and the drain hose is disposed inside the inlet.

[0012] Compared with the prior art, this utility model provides a cleaning device for the filter screen of ventilation ducts in civil defense projects, which has the following beneficial effects:

[0013] 1. This air-raid shelter ventilation duct filter cleaning device, through its cleaning mechanism, allows for quick and easy installation and fixation of the mounting frame via a combination of positioning studs, threaded caps, and mounting frames. It filters cleaning water, and the combination of an air-water mixed pulse cleaning device, a delivery pipe, and nozzles enables air-water mixed pulse cleaning. The device effectively cleans the filter screen by spraying a mixture of compressed air and water mist, eliminating the need to replace the soaking solution, reducing water consumption and wastewater volume, thus lowering wastewater treatment costs. Simultaneously, the water mist encapsulates dust particles, reducing dust generation, achieving water conservation. Furthermore, compared to traditional wet cleaning, drying time is also reduced.

[0014] 2. The ventilation duct filter cleaning device for this civil defense project, through its collection mechanism, recycles the cleaning waste liquid in a waste liquid tank during use. After cleaning, the waste liquid can be centrally circulated and filtered for reuse, thus avoiding waste of water resources. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of the cleaning mechanism of this utility model;

[0018] Figure 3 This is an exploded and sectional view of the mounting frame and its connecting structure of this utility model;

[0019] Figure 4 This is a cross-sectional view of the collection mechanism of this utility model.

[0020] In the diagram: 1. Casters; 2. Cleaning mechanism; 21. Top platform; 22. Storage tank; 23. Sloping bottom tank; 24. Air-water mixed pulse cleaning device; 25. Delivery pipe; 26. Nozzle; 27. Positioning stud; 28. Threaded cap one; 29. ​​Mounting frame; 210. Drain hose; 3. Collection mechanism; 31. Waste liquid tank; 32. Liquid inlet; 33. Drain pipe; 34. Threaded cap two; 4. Support base plate; 5. Support rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Example:

[0024] Please see Figure 1-3 This utility model provides a technical solution: a cleaning device for the filter screen of ventilation ducts in civil defense projects, including a caster wheel 1, a support base plate 4 fixedly installed on the top of the caster wheel 1, a support rod 5 fixedly installed on the top of the support base plate 4, a cleaning mechanism 2 fixedly installed on the top of the support rod 5, and a collection mechanism 3 provided on the top of the support base plate 4.

[0025] Furthermore, the cleaning mechanism 2 includes a top platform 21, which is fixedly installed on the top of the support rod 5. The top platform 21 has a storage groove 22 and a sloping bottom groove 23 inside. The top of the top platform 21 is fixedly installed with an air-water mixed pulse cleaning device 24 and a positioning stud 27. A delivery pipe 25 is provided on the left side of the air-water mixed pulse cleaning device 24. A nozzle 26 is fixedly installed at the end of the delivery pipe 25 away from the air-water mixed pulse cleaning device 24. A threaded cap 28 is installed on the external thread of the positioning stud 27. An installation frame 29 is provided on the outside of the positioning stud 27. A drain hose 210 is fixedly installed at the bottom of the top platform 21. This facilitates the cleaning of the ventilation duct filter screen of the civil defense project through the cleaning mechanism 2. The air-water mixed pulse cleaning method reduces water costs and can filter and collect the clean water for recycling.

[0026] Furthermore, the internal space of the inclined bottom groove 23 corresponds to the size of the mounting frame 29, and the mounting frame 29 is slidably installed inside the inclined bottom groove 23. With the mounting frame 29 corresponding to the size of the inclined bottom groove 23, the mounting frame 29 can be tightly fitted inside the top platform 21, preventing impurities from entering the inner wall of the top platform 21 through gaps, and effectively collecting the cleaning impurities.

[0027] Furthermore, the top of the mounting frame 29 is provided with corner plates, and the corner plates provided on the top of the mounting frame 29 are symmetrically distributed at the four corners of the top of the mounting frame 29. The positioning studs 27 are slidably installed inside the corner plates provided on the top of the mounting frame 29. The corner plates can be used to support the mounting frame 29 and to position it for installation. At the same time, with the assistance of the positioning studs 27 and the threaded caps 28, the mounting frame 29 can be firmly fixed.

[0028] Furthermore, the bottom of the mounting frame 29 is provided with filter holes, and the filter holes at the bottom of the mounting frame 29 are evenly distributed inside the bottom plate of the mounting frame 29. By using the filter holes at the bottom of the mounting frame 29, the clean water can be filtered, and impurities can be collected inside the mounting frame 29 to prevent them from entering the waste liquid tank 31.

[0029] Please see Figure 4 Furthermore, the collection mechanism 3 includes a waste liquid tank 31, which is set on the top of the support base plate 4. The top of the waste liquid tank 31 has an inlet 32, and a drain pipe 33 is fixedly installed on the front of the waste liquid tank 31. A threaded cap 34 is threadedly installed on the end of the drain pipe 33 away from the waste liquid tank 31. The collection mechanism 3 can collect the wastewater used for cleaning, so that it can be recycled and filtered in the future, avoiding the waste of direct discharge.

[0030] Furthermore, the diameter of the inlet 32 ​​is larger than the diameter of the drain hose 210, and the drain hose 210 is located inside the inlet 32, so that the drain hose 210 can normally enter the interior of the waste liquid tank 31 and discharge the cleaning waste liquid into the interior of the waste liquid tank 31.

[0031] In actual operation, when this device is used, the mounting frame 29 is inserted into the inclined bottom groove 23, and the positioning stud 27 is inserted into the corner plate. The mounting frame 29 can be fixed by using the threaded cap 28. At this time, the air-water mixed pulse cleaning device 24 is used to place the filter screen inside the mounting frame 29. The nozzle 26 is held at a 45° angle and a distance of 10-15cm to scan the surface of the filter screen. The kinetic energy of the airflow impact and the chemical energy of the water dissolve the dirt work together to remove the impurities in the filter screen pores. The impurities are filtered by the mounting frame 29 and remain inside the mounting frame 29. The sewage passes through the inclined bottom groove 23 and enters the drain hose 210, and is discharged into the waste liquid tank 31 for recycling. It can be recycled and filtered for secondary use. At the same time, the cleaned filter screen can be temporarily stored in the storage tank 22.

[0032] It should be further noted that when the air-water mixed pulse cleaning device 24 is working, the air-water mixing ratio is maintained within the range of 5:1-10:1 to ensure uniform dispersion of microdroplets, combining impact force and wetting effect; the pulse frequency is maintained within the range of 5-20Hz, using high-frequency pulses to enhance stain removal, and low frequency for fine areas; and the atomized particle size is maintained within the range of D50≤30μm to ensure that microdroplets penetrate deep into the filter pores and avoid clogging; the air circuit working pressure is set within the range of 0.4-0.6 MPa, and the water circuit working pressure is set within the range of 0.2-0.3 MPa to balance cleaning power and filter safety.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A cleaning device for ventilation duct filters in civil defense projects, comprising casters (1), characterized in that: A support base plate (4) is fixedly installed on the top of the caster wheel (1), a support rod (5) is fixedly installed on the top of the support base plate (4), a cleaning mechanism (2) is fixedly installed on the top of the support rod (5), and a collection mechanism (3) is provided on the top of the support base plate (4).

2. The air duct filter cleaning device for civil defense projects according to claim 1, characterized in that: The cleaning mechanism (2) includes a top platform (21), which is fixedly installed on the top of the support rod (5). The top platform (21) has a storage groove (22) and a sloping bottom groove (23) inside. The top of the top platform (21) is fixedly installed with an air-water mixed pulse cleaning device (24) and a positioning stud (27). A delivery pipe (25) is provided on the left side of the air-water mixed pulse cleaning device (24). A nozzle (26) is fixedly installed at the end of the delivery pipe (25) away from the air-water mixed pulse cleaning device (24). A threaded cap (28) is installed on the external thread of the positioning stud (27). An installation frame (29) is provided on the outside of the positioning stud (27). A drain hose (210) is fixedly installed at the bottom of the top platform (21).

3. A filter cleaning device for ventilation ducts in civil defense projects according to claim 2, characterized in that: The internal space of the inclined bottom groove (23) corresponds to the size of the mounting frame (29), and the mounting frame (29) is slidably installed inside the inclined bottom groove (23).

4. A filter cleaning device for ventilation ducts in civil defense projects according to claim 2, characterized in that: The top of the mounting frame (29) is provided with corner plates, and the corner plates provided on the top of the mounting frame (29) are symmetrically distributed at the four corners of the top of the mounting frame (29), and the positioning studs (27) are slidably installed inside the corner plates provided on the top of the mounting frame (29).

5. A filter cleaning device for ventilation ducts in civil defense projects according to claim 2, characterized in that: The bottom of the mounting frame (29) is provided with filter holes, and the filter holes at the bottom of the mounting frame (29) are evenly distributed inside the bottom plate of the mounting frame (29).

6. A filter cleaning device for ventilation ducts in civil defense projects according to claim 1, characterized in that: The collection mechanism (3) includes a waste liquid tank (31), which is located on the top of the support base plate (4). The top of the waste liquid tank (31) has an inlet (32), and a drain pipe (33) is fixedly installed on the front of the waste liquid tank (31). A threaded cap (34) is threadedly installed on the end of the drain pipe (33) away from the waste liquid tank (31).

7. A filter cleaning device for ventilation ducts in civil defense projects according to claim 6, characterized in that: The diameter of the inlet (32) is larger than the diameter of the drain hose (210), and the drain hose (210) is located inside the inlet (32).

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