Civil air defense building ventilation system with smoke filtering function

Abstract

The utility model discloses a civil air defense building ventilation system with a smoke filtering function, and particularly relates to the technical field of civil air defense building ventilation, the civil air defense building ventilation system comprises a pipeline installed at the ventilation position of a civil air defense building, an air inlet pipe is arranged at the bottom of one side of the pipeline, a filtering assembly is arranged in the air inlet pipe, and a protection assembly is arranged on the outer side of the air inlet pipe. According to the utility model, secondary filtration can be carried out on flue gas, the filter frame can be detached and cleaned, and the top of the air inlet pipe can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation for civil air defense buildings, and more specifically, to a ventilation system for civil air defense buildings with smoke filtering. Background Art

[0002] Civil air defense buildings are a general term for construction projects that have civil air defense projects as necessary ancillary projects. They are mostly in the form of underground garages, and are equipped with civil air defense doors, blocking doors, lighting, ventilation, water supply and drainage, communication networks and other hardware required for wartime shelters. Generally, when civil air defense buildings are in use, the smoke needs to be treated to avoid the impact of smoke on personnel safety.

[0003] After searching, the Chinese patent with publication number CN220269546U discloses a ventilation system for civil air defense basements. The advantage of this structure is that, through the cooperation of the heating device and the exhaust fan, the air inside the air outlet duct is heated and then the hot air is discharged into the civil air defense basement through the air outlet. Through the cooperation of the refrigeration device and the exhaust fan, the air inside the air outlet duct is cooled and then the cold air is discharged into the civil air defense basement through the air outlet. With their mutual cooperation, the problem of temperature imbalance inside the basement, which is not conducive to material storage and personnel placement, is solved.

[0004] However, in actual use, although this structure can filter the air entering the air inlet channel through the filter block, since the filter block is directly installed inside the air inlet channel, and the air inlet channel is not only deep but also has its top in an open-air environment, when foreign objects fall into the air inlet channel or the filter block is blocked due to long-term use, it is not only inconvenient to quickly remove the filter block, but also affects the air circulation in the air inlet channel. Utility Model Content

[0005] In order to overcome the problems and defects in the prior art, the utility model provides a ventilation system for civil air defense buildings with smoke filtration to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a ventilation system for a civil air defense building with smoke filtration, comprising a pipe installed at the ventilation part of the civil air defense building, an air inlet pipe is provided at the bottom of one side of the pipe, a filter assembly is provided inside the air inlet pipe, and a protective assembly is provided outside the air inlet pipe; the filter assembly comprises two filter frames arranged inside the air inlet pipe, two notches are provided on the surface of one side of the air inlet pipe, one side of the two filter frames passes through the notches and extends to one side of the air inlet pipe, a baffle is provided on one side of the two filter frames and located on one side of the air inlet pipe, two fixing rods are provided on one side of the baffle and located on both sides of the two filter frames, fixing holes are provided on the surface of the air inlet pipe and located on both sides of the two notches, the two fixing rods are clamped with the fixing holes, two partition frames are provided inside the air inlet pipe, and the two filter frames are located on the partition frames, which is beneficial to prevent smoke from affecting environmental quality.

[0007] Preferably, the protective component includes a fixed frame arranged on the outside of the air inlet duct, a hollow cover is provided on the top of the fixed frame and located on the outside of the air inlet duct, holes are provided on both side surfaces of the fixed frame, positioning holes are provided on both side surfaces of the hollow cover and symmetrically located at the holes, positioning rods are provided on both sides of the fixed frame, one end of the two positioning rods pass through the holes and are clamped in the positioning holes, springs are sleeved on the two positioning rods and located on one side of the fixed frame, and one end of the two springs are respectively connected to the surface of the fixed frame, which is conducive to the disassembly of the hollow cover.

[0008] Preferably, a groove is provided on the surface of the fixing frame, and the bottom of the hollow cover is located inside the groove, which is conducive to the installation of the hollow cover.

[0009] Preferably, a placement frame is provided inside one of the filter frames, a cover plate is provided on the top of the placement frame and inside the filter frame, and a plurality of activated carbon adsorption particles are provided in the gap between the cover plate and the filter frame, which is beneficial to filtering the odor inside the smoke.

[0010] Preferably, a fan is provided inside the pipeline, and a plurality of delivery ports are provided on the bottom surface of the pipeline, which is conducive to the delivery of air inside the pipeline.

[0011] Preferably, a cold air blower is provided on one side of the air inlet duct, a hot air blower is provided on one side of the cold air blower, a storage box is provided on one side of the hot air blower, and a controller and a temperature sensor are provided inside the storage box, which is conducive to controlling the temperature inside the pipe.

[0012] Technical effects and advantages of the utility model:

[0013] 1. By setting up the filter assembly, the flue gas can be initially filtered through one of the filter frames, and then the flue gas can be secondary filtered through the activated carbon adsorption particles inside the other filter frame, which can prevent the flue gas emission from affecting the environmental quality. Then, the baffle is pulled to separate the fixed rod on one side from the fixed hole on the surface of the air inlet pipe, and the filter frame can be taken out from the inside of the air inlet pipe, and it can be cleaned or the activated carbon adsorption particles inside it can be replaced, which is conducive to improving the efficiency of flue gas treatment;

[0014] 2. By setting up a protective component, place the hollow cover on the top of the fixed frame so that its bottom is engaged with the groove on the surface of the fixed frame, and then pull the positioning rod to pass through the hole and engage with the positioning hole on the surface of the hollow cover. The hollow cover and the fixed frame can be fixed, and the inside of the air inlet duct can be protected to prevent foreign objects from entering the air inlet duct and affecting the fluidity of the air inlet duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0017] Figure 3 It is a state structure schematic diagram of the utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the fixing frame and the positioning rod of the utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the filter assembly of the utility model.

[0020] The accompanying drawings are marked as follows: 1. pipeline; 2. air inlet pipe; 3. filter frame; 4. baffle; 5. fixing rod; 6. fixing hole; 7. partition frame; 8. fixing frame; 9. hollow cover; 10. positioning hole; 11. positioning rod; 12. spring; 13. groove; 14. cover plate; 15. fan; 16. cold air blower; 17. hot air blower; 18. storage box. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] As attached Figure 1-5A ventilation system for a civil air defense building with smoke filtration is shown, comprising a pipe 1 installed at the ventilation location of the civil air defense building, an air inlet pipe 2 is provided at the bottom of one side of the pipe 1, a filter assembly is provided inside the air inlet pipe 2, and a protective assembly is provided outside the air inlet pipe 2; the filter assembly comprises two filter frames 3 arranged inside the air inlet pipe 2, two notches are provided on the surface of one side of the air inlet pipe 2, one side of the two filter frames 3 passes through the notches and extends to one side of the air inlet pipe 2, a baffle 4 is provided on one side of the two filter frames 3 and located on one side of the air inlet pipe 2, two fixing rods 5 are provided on one side of the baffle 4 and located on both sides of the two filter frames 3, fixing holes 6 are provided on the surface of the air inlet pipe 2 and located on both sides of the two notches, the two fixing rods 5 are clamped with the fixing holes 6, two partition frames 7 are provided inside the air inlet pipe 2, and the two filter frames 3 are located on the partition frames 7.

[0023] As attached Figure 1 , 3 As shown in Figures 4 and 5, the protective component includes a fixed frame 8 arranged on the outside of the air inlet duct 2, a hollow cover 9 is provided on the top of the fixed frame 8 and located on the outside of the air inlet duct 2, holes are provided on both side surfaces of the fixed frame 8, positioning holes 10 are provided on both side surfaces of the hollow cover 9 and symmetrically located at the holes, positioning rods 11 are provided on both sides of the fixed frame 8, one end of the two positioning rods 11 passes through the holes and is clamped in the positioning holes 10, springs 12 are sleeved on the two positioning rods 11 and located on one side of the fixed frame 8, one end of the two springs 12 is respectively connected to the surface of the fixed frame 8, and the hollow cover 9 can be disassembled by separating the positioning rods 11 from the positioning holes 10.

[0024] As attached Figure 2 , 4 As shown, a groove 13 is opened on the surface of the fixing frame 8 , and the bottom of the hollow cover 9 is located inside the groove 13 , so that the hollow cover 9 can be installed on the fixing frame 8 .

[0025] As attached Figure 5 As shown, a placement frame is provided inside one of the filter frames 3, a cover plate 14 is provided on the top of the placement frame and inside the filter frame 3, and a plurality of activated carbon adsorption particles are provided in the gap between the cover plate 14 and the filter frame 3, which can filter the odor inside the smoke.

[0026] As attached Figure 2 As shown, a fan 15 is provided inside the pipeline 1, and a plurality of delivery ports are provided on the bottom surface of the pipeline 1 to deliver the air inside the pipeline 1.

[0027] As attached Figure 1 As shown, a cold air blower 16 is provided on one side of the air inlet pipe 2, a hot air blower 17 is provided on one side of the cold air blower 16, a storage box 18 is provided on one side of the hot air blower 17, and a controller and a temperature sensor are provided inside the storage box 18 to control the temperature inside the pipe 1.

[0028] Working principle of the utility model: when in use, firstly, one of the filter frames 3 can be used to preliminarily filter the impurities in the smoke entering the air inlet pipe 2, and then the activated carbon adsorption particles inside the other filter frame 3 can be used to perform a secondary filtration on the odor and impurities in the smoke, and then the smoke can be directly discharged on the surface, causing environmental impact. After being used for a period of time, the surface of the filter frame 3 is prone to clogging. When the filter frame 3 needs to be cleaned, the baffle plate 4 is pulled to separate the fixing rod 5 from the fixing hole 6 on the surface of the air inlet pipe 2. The baffle plate 4 drives the filter frame 3 to move along the notch to separate the filter frame 3 from the air inlet pipe 2, and then the filter frame 3 can be cleaned and the activated carbon adsorption particles can be replaced;

[0029] When encountering windy and rainy weather, the hollow cover 9 can be fixed to the outside of the air inlet pipe 2 by placing the hollow cover 9 on the outside of the air inlet pipe 2, so that the bottom of the hollow cover 9 is engaged with the groove 13 on the surface of the fixed frame 8, and then the positioning rod 11 on one side of the fixed frame 8 is pulled to stretch the spring 12, and then the positioning rod 11 is engaged with the positioning hole 10 on the surface of the hollow cover 9. The hollow cover 9 can be fixed to the outside of the air inlet pipe 2, which can facilitate the air inlet pipe 2 and prevent rainwater and foreign matter from entering the inside of the air inlet pipe 2. The utility model can perform secondary filtration on the smoke through the two filter frames 3, and the air inlet pipe 2 can be protected through the hollow cover 9.

[0030] Finally: The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A ventilation system for a civil air defense building with smoke filtration, comprising a pipe (1) installed at a ventilation location of the civil air defense building, characterized in that: An air inlet pipe (2) is provided at the bottom of one side of the pipeline (1), a filter component is provided inside the air inlet pipe (2), and a protective component is provided outside the air inlet pipe (2); The filter assembly comprises two filter frames (3) arranged inside the air inlet pipe (2); two notches are provided on one side of the surface of the air inlet pipe (2); one side of the two filter frames (3) passes through the notches and extends to the side of the air inlet pipe (2); a baffle (4) is provided on one side of the two filter frames (3) and located on the side of the air inlet pipe (2); two fixing rods (5) are provided on one side of the baffle (4) and located on both sides of the two filter frames (3); fixing holes (6) are provided on the surface of the air inlet pipe (2) and located on both sides of the two notches; the two fixing rods (5) are snap-fitted with the fixing holes (6); two partition frames (7) are provided inside the air inlet pipe (2); the two filter frames (3) are located on the partition frames (7).

2. The ventilation system for civil air defense buildings with smoke filtration according to claim 1 is characterized in that: The protective component comprises a fixed frame (8) arranged on the outside of the air inlet pipe (2); a hollow cover (9) is arranged on the top of the fixed frame (8) and located on the outside of the air inlet pipe (2); holes are provided on both side surfaces of the fixed frame (8); positioning holes (10) are provided on both side surfaces of the hollow cover (9) and symmetrically located at the holes; positioning rods (11) are provided on both sides of the fixed frame (8); one end of the two positioning rods (11) passes through the holes and is located at the positioning holes (10) for engagement; springs (12) are sleeved on the two positioning rods (11) and located on one side of the fixed frame (8); one end of the two springs (12) is respectively connected to the surface of the fixed frame (8).

3. The ventilation system for civil air defense buildings with smoke filtration according to claim 2 is characterized in that: A groove (13) is provided on the surface of the fixing frame (8), and the bottom of the hollow cover (9) is located inside the groove (13).

4. The ventilation system for civil air defense buildings with smoke filtration according to claim 1 is characterized in that: A placement frame is provided inside one of the filter frames (3), a cover plate (14) is provided on the top of the placement frame and located inside the filter frame (3), and a plurality of activated carbon adsorption particles can be provided in the gap between the cover plate (14) and the filter frame (3).

5. The ventilation system for civil air defense buildings with smoke filtration according to claim 1 is characterized in that: A fan (15) is arranged inside the pipeline (1), and a plurality of conveying openings are opened on the bottom surface of the pipeline (1).

6. The ventilation system for civil air defense buildings with smoke filtration according to claim 1 is characterized in that: A cold air blower (16) is provided on one side of the air inlet pipe (2), a hot air blower (17) is provided on one side of the cold air blower (16), a storage box (18) is provided on one side of the hot air blower (17), and a controller and a temperature sensor are provided inside the storage box (18).

Images