Filtering and purifying device for civil air defense engineering pipeline

Abstract

The utility model discloses a civil air defense engineering pipeline filtering and purifying device which comprises a mounting pipe, an obliquely arranged filtering net plate is fixedly mounted in the mounting pipe, impurities in flowing gas are filtered through the filtering net plate, and an obliquely arranged vibration exciter is fixedly connected to the bottom of the right side of the filtering net plate. Through the arrangement of a series of structures, gas introduced into the civil air defense project can be filtered and purified, tiny impurities in the gas can be effectively treated in the mode that the gas is filtered and then purified, the filtering and purifying effect on the gas is improved, and the gas purification effect is improved. According to the air-raid shelters, the situation that impurities enter the air-raid shelters and hurt the bodies of people is reduced, dust attached to the filter screen plate can be effectively cleaned in the mode that excitation is matched with air back-blowing, the situation that the dust blocks meshes of the filter screen plate can be effectively reduced in the mode of back-blowing dust cleaning, and the dust cleaning effect on the filter screen plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline filtering and purifying equipment, in particular to a pipeline filtering and purifying device for civil air defense projects. Background Art

[0002] With the progress of urbanization, the civil air defense projects that have been built or are under construction are no longer just used as preventive facilities. More and more civil air defense projects are usually used as warehouses for storing goods and parking lots for parking vehicles. Some are also used as business places, such as supermarkets, shopping malls, hotels, etc. During the construction of civil air defense projects, good ventilation needs to be maintained. At present, civil air defense projects are generally equipped with special ventilation systems to realize the exchange and circulation of air between the inside of the project and the outside world. Many civil air defense projects are built below the ground, and the vents of their ventilation systems are generally located close to the ground. The inhaled air is easily mixed with too much dust and impurities. In the existing ventilation system, a filter is generally installed at the air inlet of the ventilation duct. The inhaled air is filtered and cleaned before being transported to the inside of the civil air defense project. However, the filter will accumulate dust after a period of use, causing the mesh to become brittle. Blockage causes poor ventilation, which may lead to more serious consequences if not handled in time. For this reason, application number: 202120209737.X discloses a filter box for a ventilation system of a civil air defense project, including a box body and a filter screen, and also an automatic cleaning device. The box body matches the size of the ventilation duct in the ventilation system. The filter screen is arranged in the box body, and the box body is divided into an air inlet end and an air outlet end. The automatic cleaning device is arranged at the air inlet end of the box body. The automatic cleaning device is used to clean the filter screen at regular intervals. The automatic cleaning device includes a cleaning brush and a driving mechanism. The cleaning brush contacts the filter screen and moves relative to the filter screen under the drive of the driving mechanism to remove dust attached to the filter screen. The filter box of the device can automatically clean the filter screen, extend the service life of the filter screen, and ensure that the ventilation system can work stably for a long time. The structure is simple and the installation and use are convenient.

[0003] The filter box for the ventilation system of civil air defense projects disclosed in the above patent filters and blocks the dust in the incoming gas through a filter net, and cleans the dust on the filter net through an automatic cleaning mechanism, but it still has some shortcomings: 1. The method of cleaning the attached dust by vertically rubbing the cleaning brush against the filter net, the dust is easily squeezed into the mesh of the filter net during the friction cleaning process, resulting in unsatisfactory cleaning effect; 2. The method of filtering the dust in the gas only through a single filter net has an unsatisfactory filtering effect, and it is difficult to filter out tiny dust impurities, which cannot meet the use requirements. Based on the above situation, we propose a civil air defense project pipeline filtering and purification device. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a pipeline filtering and purifying device for civil air defense projects.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A filtering and purifying device for a pipeline of a civil air defense project comprises a mounting pipe, in which a tilted filter screen is fixedly mounted, and impurities in the gas flowing through the filter screen are filtered by the filter screen; a tilted vibrator is fixedly connected to the bottom right side of the filter screen, and the vibrator is used to vibrate the filter screen; the vibration principle is a prior art and is not elaborated here; a back-blowing and cleaning mechanism is provided on the top left side of the filter screen, and the dust on the right side of the filter screen is back-blown and cleaned by the back-blowing and cleaning mechanism; a fan is fixedly connected between the top inner wall and the bottom inner wall of the mounting pipe, and the fan provides a gas extraction force; the right side of the fan is a suction end, and the left side of the fan is an exhaust end and is connected and fixed with a conical cover; the left side of the conical cover is connected and fixed with an L-shaped A ventilation pipe, a purification box located on the left side of the fan is fixedly connected between the top inner wall and the bottom inner wall of the mounting pipe, the top of the purification box is open, and the purification box is filled with water. The left side of the L-shaped ventilation pipe extends into the water inside the purification box, and the water inside the purification box adsorbs and purifies the dust in the incoming gas. The top of the L-shaped ventilation pipe is connected and fixed with an air supply mechanism, and an installation groove is provided on the top inner wall of the mounting pipe. The top of the air supply mechanism extends into the installation groove, and the air supply mechanism is connected with the backblowing and cleaning mechanism. The air supply mechanism is used to supply air to the backblowing and cleaning mechanism. The top left side of the purification box is connected and fixed with an exhaust and ejection mechanism, which is installed between the top inner wall and the bottom inner wall of the mounting pipe. The exhaust and ejection mechanism is used to extract the gas inside the purification box and eject it into the civil air defense project.

[0007] Preferably, the back-blowing cleaning mechanism includes a transverse tube arranged on the left side of the filter screen plate, the front end and the rear end of the transverse tube are both configured as blocking structures, the right end of the transverse tube is connected and fixed with a plurality of air blowing heads, the plurality of air blowing heads are all located at the left top of the filter screen plate and cooperate with it, the filter screen plate is back-blown and cleaned by blowing out gas through the plurality of air blowing heads, a multi-stage reciprocating push rod motor is embedded and fixed on the top inner wall of the mounting tube with an inclined arrangement, the bottom end of the output shaft of the multi-stage reciprocating push rod motor is fixedly connected to the top of the transverse tube, and the multi-stage reciprocating push rod motor is used to drive the transverse tube to cyclically move vertically.

[0008] Preferably, the air supply mechanism includes a solenoid valve connected and embedded in the top of the L-shaped ventilation pipe, the top of the solenoid valve is connected and fixed with a connecting pipe, and the connection between the L-shaped ventilation pipe and the connecting pipe is achieved through the solenoid valve, the top of the connecting pipe extends into the mounting groove and is fixedly connected to the top inner wall of the mounting groove, the right end of the connecting pipe is connected and fixed with a telescopic hose, the right end of the telescopic hose is connected and fixed with the left side of the cross pipe, and the telescopic elastic force of the telescopic hose is utilized to provide a space distance for the cross pipe to move downward, and a battery is fixedly connected to the rear inner wall of the mounting groove, the battery is electrically connected to the multi-stage reciprocating push rod motor, the fan and the solenoid valve, the front side of the battery is fixed and electrically connected to the timing switch, the battery supplies power to the multi-stage reciprocating push rod motor, the fan, the solenoid valve and the timing switch, the timing switch is electrically connected to the solenoid valve and the multi-stage reciprocating push rod motor, the timing switch controls the opening and closing time of the solenoid valve and the multi-stage reciprocating push rod motor, and its control principle is the prior art and will not be elaborated here.

[0009] Preferably, the air extraction and ejection mechanism includes an air pump embedded and fixed on the top left side of the purification box, the extraction end of the air pump extends to the upper part of the interior of the purification box, the air pump is used to extract gas from the upper part of the interior of the purification box, a vertical pipe is fixedly connected between the top inner wall and the bottom inner wall of the installation tube, the top and bottom ends of the vertical pipe are both set as blocking structures, the left side of the air pump is the exhaust end and is connected and fixed to the top of the right inner wall of the vertical pipe, the air pump is electrically connected to the battery, the battery supplies power for the air pump, and a plurality of ejection heads are connected and fixed on the left side of the vertical pipe.

[0010] Preferably, a first wireless remote control switch is fixed and electrically connected to the front side of the air pump, and a second wireless remote control switch is fixed and electrically connected to the front side of the fan. The first wireless remote control switch and the second wireless remote control switch are matched with the same external remote control. The first wireless remote control switch and the second wireless remote control cooperate with the external remote control to achieve the effect of remotely controlling the opening of the air pump and the fan, which is convenient for personnel to operate.

[0011] Preferably, a groove with openings on the front and rear sides is formed at the bottom of the mounting tube, an L-shaped drain pipe is connected and fixed to the bottom right side of the purification box, the bottom end of the L-shaped drain pipe extends into the groove and is fixedly connected to a valve, the L-shaped drain pipe and the valve cooperate to discharge water from the inside of the purification box, and can also be used to add water to the inside of the purification box.

[0012] Preferably, the left top, left bottom, right top and right bottom of the mounting tube are fixedly connected with two mounting plates, and two bolt holes are provided on the top of the mounting plates, which cooperate with external bolts to fix the entire mounting tube for use in the civil air defense project pipeline.

[0013] Compared with the existing technology, the beneficial effects of the utility model are:

[0014] 1. Through the coordination of the filter screen, fan, cone cover, L-shaped ventilation pipe, purification box and exhaust ejection mechanism, the air supply inside the civil air defense project can be carried out by extracting gas for filtration and purification, and the tiny impurities in the gas can be effectively processed by filtering and purifying the gas, thereby improving the filtering and purification effect of the gas and reducing the harm caused to personnel by impurities entering the civil air defense project;

[0015] 2. Through the cooperation of the back-blowing cleaning mechanism, the vibrator and the air supply mechanism, the filter plate can be initially cleaned by vibration, and the dust on the filter plate can be back-blown by back-blowing gas during the initial cleaning process. The back-blowing cleaning method can effectively reduce the situation where dust blocks the mesh of the filter plate, and improve the cleaning effect of the filter plate;

[0016] The utility model can filter and purify the gas entering the interior of the civil air defense project through the arrangement of a series of structures. By filtering and purifying the gas, tiny impurities in the gas can be effectively treated, thereby improving the filtering and purification effect of the gas and reducing the possibility of impurities entering the interior of the civil air defense project and causing harm to personnel. The utility model can also effectively clean the dust attached to the filter screen by means of vibration and back-blowing gas. By means of back-blowing cleaning, the possibility of dust clogging the mesh holes of the filter screen can be effectively reduced, thereby improving the cleaning effect of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a pipeline filtering and purification device for civil air defense projects proposed by the utility model;

[0018] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of;

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0020] In the figure: 100, mounting pipe; 101, filter screen; 1, vibrator; 2, mounting slot; 3, fan; 4, conical cover; 5, purification box; 501, valve; 6, L-shaped ventilation pipe; 7, solenoid valve; 8, connecting pipe; 9, battery; 10, time switch; 11, air pump; 12, vertical pipe; 13, multi-stage reciprocating push rod motor; 14, horizontal pipe; 15, blowing head; 16, telescopic hose; 17, spray head. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-3 , a filtering and purifying device for civil air defense pipelines, including a mounting tube 100, wherein the left top, left bottom, right top and right bottom of the mounting tube 100 are fixedly connected with two mounting plates, and two bolt holes are provided on the top of the mounting plates, which cooperate with external bolts to fix the entire mounting tube 100 in the pipeline of the civil air defense project for use, and an inclined filter screen plate 101 is fixedly installed in the mounting tube 100, and impurities in the gas flowing through the filter screen plate 101 are filtered, and an inclined vibrator 1 is fixedly connected to the right bottom of the filter screen plate 101, and the vibrator 1 is used to vibrate the filter screen plate 101, and its excitation principle is the prior art and will not be elaborated here, and the left top of the filter screen plate 101 is provided with a back-blowing cleaning device embedded in the inner wall of the top of the mounting tube 100 Mechanism, wherein the back-blowing cleaning mechanism includes a transverse tube 14 arranged on the left side of the filter screen plate 101, the front end and the rear end of the transverse tube 14 are both configured as blocking structures, the right end of the transverse tube 14 is connected and fixed with a plurality of air blowing heads 15, the plurality of air blowing heads 15 are all located at the left top of the filter screen plate 101 and cooperate with it, and the filter screen plate 101 is back-blown and cleaned by blowing gas through the plurality of air blowing heads 15, and an inclined multi-stage reciprocating push rod motor 13 is embedded and fixed on the top inner wall of the mounting tube 100, wherein an inclined mounting hole is opened on the top inner wall of the mounting tube 100, the inner wall of the mounting hole is fixedly connected to the outer side of the multi-stage reciprocating push rod motor 13, the bottom end of the output shaft of the multi-stage reciprocating push rod motor 13 is fixedly connected to the top of the transverse tube 14, and the multi-stage reciprocating push rod motor 13 is used to drive the transverse tube 14 to cyclically move vertically;

[0023] A fan 3 is fixedly connected between the top inner wall and the bottom inner wall of the mounting tube 100, and the fan 3 provides a gas extraction force. The right side of the fan 3 is an air suction end, and the left side of the fan 3 is an exhaust end and is connected and fixed with a conical cover 4. The left side of the conical cover 4 is connected and fixed with an L-shaped ventilation pipe 6. A purification box 5 located on the left side of the fan 3 is fixedly connected between the top inner wall and the bottom inner wall of the mounting tube 100. The top of the purification box 5 is an opening, and the purification box 5 is filled with water. The bottom of the mounting tube 100 is provided with a groove with openings on the front and rear sides. The right bottom of the purification box 5 is connected and fixed with an L-shaped Drain pipe, the bottom end of the L-shaped drain pipe extends into the groove and is fixedly connected with a valve 501, the L-shaped drain pipe and the valve 501 cooperate to discharge the water inside the purification box 5, and can also be used to add water to the purification box 5, the left side of the L-shaped ventilation pipe 6 extends into the water inside the purification box 5, wherein a first through hole is opened on the right inner wall of the purification box 5, the inner wall of the first through hole is fixedly connected to the outer side of the L-shaped ventilation pipe 6, the water inside the purification box 5 adsorbs and purifies the dust in the introduced gas, the top of the L-shaped ventilation pipe 6 is connected and fixed with an air supply mechanism, and the top inner wall of the installation pipe 100 is provided with a first through hole. A mounting groove 2 is provided, and the top of the air supply mechanism extends into the mounting groove 2, wherein the air supply mechanism includes a solenoid valve 7 connected and embedded in the top of the L-shaped ventilation pipe 6, and the top of the solenoid valve 7 is connected and fixed with a connecting pipe 8, and the connection between the L-shaped ventilation pipe 6 and the connecting pipe 8 is realized through the solenoid valve 7, and the top of the connecting pipe 8 extends into the mounting groove 2 and is fixedly connected to the top inner wall of the mounting groove 2, and the right end of the connecting pipe 8 is connected and fixed with a telescopic hose 16, and the right end of the telescopic hose 16 is connected and fixed with the left side of the horizontal pipe 14, and the telescopic elastic force of the telescopic hose 16 is used to provide movement when the horizontal pipe 14 moves downward. Spatial distance, a battery 9 is fixedly connected to the inner wall of the rear side of the mounting groove 2, and the battery 9 is electrically connected to the multi-stage reciprocating push rod motor 13, the fan 3 and the solenoid valve 7. The front side of the battery 9 is fixed and electrically connected to the time-controlled switch 10, and the battery 9 supplies power to the multi-stage reciprocating push rod motor 13, the fan 3, the solenoid valve 7 and the time-controlled switch 10. The time-controlled switch 10 is electrically connected to the solenoid valve 7 and the multi-stage reciprocating push rod motor 13. The time-controlled switch 10 controls the opening and closing time of the solenoid valve 7 and the multi-stage reciprocating push rod motor 13, and its control principle is the prior art and will not be elaborated here;

[0024] The top left side of the purification box 5 is connected and fixed with an exhaust and ejection mechanism, which is installed between the top inner wall and the bottom inner wall of the mounting pipe 100. The exhaust and ejection mechanism includes an air pump 11 embedded and fixed on the top left side of the purification box 5, wherein the top left side of the purification box 5 is provided with an embedding groove, the inner wall of the embedding groove is fixedly connected to the outer side of the air pump 11, and a second through-hole is provided on the right inner wall of the embedding groove, and the inner wall of the second through-hole is fixedly connected to the outer side of the extraction end of the air pump 11, wherein the front side of the air pump 11 is fixed and electrically connected with a first wireless remote control switch, and the front side of the fan 3 is fixed and electrically connected with a second wireless remote control switch, the first wireless remote control switch and the second wireless remote control switch are matched with the same external remote control, and the first wireless remote control switch and the second wireless remote control cooperate with the external remote control to achieve the effect of remotely controlling the opening of the air pump 11 and the fan 3, which is convenient for personnel operation, and the extraction end of the air pump 11 extends to the upper part of the interior of the purification box 5, and the air pump 11 is used to purify the gas above the interior of the purification box 5 For extraction, a vertical pipe 12 is fixedly connected between the top inner wall and the bottom inner wall of the installation pipe 100, and the top and bottom ends of the vertical pipe 12 are both set as blocking structures. The left side of the air pump 11 is the exhaust end and is connected and fixed to the top of the right inner wall of the vertical pipe 12. The air pump 11 is electrically connected to the battery 9, and the battery 9 supplies power to the air pump 11. A plurality of ejection heads 17 are connected and fixed to the left side of the vertical pipe 12. The utility model can filter and purify the gas entering the interior of the civil air defense project through a series of structural settings. By filtering and purifying the gas, tiny impurities in the gas can be effectively treated, thereby improving the filtering and purification effect of the gas, and reducing the harm of impurities entering the interior of the civil air defense project to the personnel. In addition, the dust attached to the filter screen 101 can be effectively cleaned by excitation and backblowing gas. By backblowing and cleaning, the situation in which dust blocks the mesh of the filter screen 101 can be effectively reduced, thereby improving the cleaning effect of the filter screen 101.

[0025] Working principle: when in use, first fix the mounting tube 100 in the pipeline of the civil air defense project through the mounting plate and the external bolts. When ventilating, turn on the fan 3 and the air pump 11. The fan 3 extracts the external gas through the mounting tube 100 and the filter screen 101. The extracted gas passes through the filter screen 101 and enters the water in the purification box 5 through the conical cover 4 and the L-shaped ventilation pipe 6 in turn. The filter screen 101 filters the impurities in the gas and blocks it on its right side. The water inside the purification box 5 adsorbs and purifies the tiny impurities in the introduced gas. The purified gas gradually floats to the upper part of the purification box 5 under buoyancy. The air pump 11 extracts the floating gas, and the extracted gas is ejected through the vertical pipe 12 and multiple ejection heads 17 in turn to ventilate the inside of the civil air defense project. By filtering the extracted gas and then adsorbing and purifying it, the tiny impurities in the gas can be effectively treated, thereby improving the filtering and purification effect of the gas and reducing the situation where impurities enter the inside of the civil air defense project and cause harm to the personnel.

[0026] While the filter plate 101 is filtering, the vibrator 1 is turned on, and the vibrator 1 rigidly vibrates the filter plate 101, causing the filter plate 101 to vibrate. When the vibration force cooperates with the inclined setting of the filter plate 101, the dust on the right side of the filter plate 101 is shaken off, thereby achieving preliminary cleaning of the filter plate 101. The opening and closing time of the solenoid valve 7 and the multi-stage reciprocating push rod motor 13 are controlled by the time-controlled switch 10. When the cleaning time of the filter plate 101 is reached, the solenoid valve 7 and the multi-stage reciprocating push rod motor 13 are controlled to open, so that part of the gas inside the L-shaped ventilation pipe 6 is blown out from the solenoid valve 7, the connecting pipe 8, the telescopic hose 16, the cross pipe 14 and the multiple blowing heads 15 in turn, and the filter plate 101 is blown back from left to right. The output shaft of the machine 13 drives the transverse tube 14 to move up and down in a cycle. The transverse tube 14 stretches the telescopic hose 16 while moving downward, and relaxes the pulling force on the telescopic hose 16 when the transverse tube 14 moves upward. The transverse tube 14 drives multiple blowing heads 15 to move up and down in a cycle, so that multiple blowing heads 15 blow air and move up and down in a cycle at the same time. Under the blowing force, the dust on the right side of the filter screen plate 101 and in the mesh are blown to the right, thereby achieving the effect of effectively cleaning the dust attached to the filter screen plate 101. By back-blowing cleaning, the situation of dust clogging the mesh of the filter screen plate 101 can be effectively reduced, and the cleaning effect of the filter screen plate 101 can be improved. When the closing time is reached, the solenoid valve 7 and the multi-stage reciprocating push rod motor 13 are controlled to close, and the next cleaning operation can be waited for.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipeline filtering and purification device for civil air defense engineering, comprising a mounting pipe (100), wherein a filter screen plate (101) arranged obliquely is fixedly mounted in the mounting pipe (100), characterized in that: The bottom right side of the filter screen plate (101) is fixedly connected to an inclined exciter (1), the top left side of the filter screen plate (101) is provided with a back-blowing cleaning mechanism embedded in the top inner wall of the mounting tube (100), a fan (3) is fixedly connected between the top inner wall and the bottom inner wall of the mounting tube (100), the right side of the fan (3) is an air suction end, the left side of the fan (3) is an air exhaust end and is connected and fixed with a conical cover (4), the left side of the conical cover (4) is connected and fixed with an L-shaped ventilation pipe (6), the top inner wall and the bottom inner wall of the mounting tube (100) are fixedly connected with a fan located at the top of the fan (3). (3) A purification box (5) on the left side, wherein the top of the purification box (5) is open and filled with water. The left side of the L-shaped ventilation pipe (6) extends into the water inside the purification box (5). The top of the L-shaped ventilation pipe (6) is connected to and fixed with an air supply mechanism. A mounting groove (2) is provided on the top inner wall of the mounting pipe (100). The top of the air supply mechanism extends into the mounting groove (2). The air supply mechanism is connected to the back-blowing cleaning mechanism. The top of the left side of the purification box (5) is connected to and fixed with an exhaust and ejection mechanism. The exhaust and ejection mechanism is installed between the top inner wall and the bottom inner wall of the mounting pipe (100).

2. The civil air defense pipeline filtering and purification device according to claim 1 is characterized in that: The back-blowing cleaning mechanism comprises a transverse tube (14) arranged on the left side of the filter screen plate (101), the front end and the rear end of the transverse tube (14) are both configured as blocking structures, the right end of the transverse tube (14) is connected and fixed with a plurality of air blowing heads (15), the plurality of air blowing heads (15) are all located at the top of the left side of the filter screen plate (101) and cooperate with it, a multi-stage reciprocating push rod motor (13) arranged obliquely is embedded and fixed on the top inner wall of the mounting tube (100), and the bottom end of the output shaft of the multi-stage reciprocating push rod motor (13) is fixedly connected to the top of the transverse tube (14).

3. The civil air defense pipeline filtering and purification device according to claim 2 is characterized in that: The air supply mechanism comprises a solenoid valve (7) connected and embedded in the top of the L-shaped ventilation pipe (6); the top of the solenoid valve (7) is connected and fixed with a connecting pipe (8); the top of the connecting pipe (8) extends into the mounting groove (2) and is fixedly connected to the top inner wall of the mounting groove (2); the right end of the connecting pipe (8) is connected and fixed with a telescopic hose (16); the right end of the telescopic hose (16) is connected and fixed to the left side of the transverse pipe (14); a battery (9) is fixedly connected to the rear inner wall of the mounting groove (2); the battery (9) is electrically connected to the multi-stage reciprocating push rod motor (13), the fan (3) and the solenoid valve (7); the front side of the battery (9) is fixed and electrically connected to a time-controlled switch (10); the time-controlled switch (10) is electrically connected to the solenoid valve (7) and the multi-stage reciprocating push rod motor (13).

4. The civil air defense pipeline filtering and purification device according to claim 3 is characterized in that: The air extraction and ejection mechanism comprises an air pump (11) embedded and fixed on the top of the left side of the purification box (5), the extraction end of the air pump (11) extends to the upper part of the interior of the purification box (5), a vertical pipe (12) is fixedly connected between the top inner wall and the bottom inner wall of the installation pipe (100), the top and bottom ends of the vertical pipe (12) are both provided with blocking structures, the left side of the air pump (11) is an exhaust end and is connected and fixed to the top of the right inner wall of the vertical pipe (12), the air pump (11) is electrically connected to the battery (9), and a plurality of ejection heads (17) are connected and fixed to the left side of the vertical pipe (12).

5. The civil air defense pipeline filtering and purification device according to claim 4 is characterized in that: A first wireless remote control switch is fixed and electrically connected to the front side of the air pump (11), and a second wireless remote control switch is fixed and electrically connected to the front side of the fan (3). The first wireless remote control switch and the second wireless remote control switch are matched with the same external remote control.

6. The civil air defense pipeline filtering and purification device according to claim 1 is characterized in that: The bottom of the installation pipe (100) is provided with a groove with openings on the front and rear sides. An L-shaped drain pipe is connected and fixed to the bottom of the right side of the purification box (5). The bottom end of the L-shaped drain pipe extends into the groove and is fixedly connected to a valve (501).

7. The civil air defense pipeline filtering and purification device according to claim 1 is characterized in that: The left top, left bottom, right top and right bottom of the mounting tube (100) are all fixedly connected with two mounting plates, and the top of the mounting plate is provided with two bolt holes.

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