Civil air defense filtering absorber with ventilation conversion function

By introducing a serpentine flow pipe and a cooling water circulation system with a cooling serpentine pipe into the air-raid shelter filter absorber, the risk of burns to evacuees from high-temperature air was eliminated, and the air was effectively cooled and purified.

CN224113135UActive Publication Date: 2026-04-14WUXI AIR DEFENSE PROTECTION EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI AIR DEFENSE PROTECTION EQUIP
Filing Date
2025-03-25
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The lack of air cooling mechanisms in existing technologies means that when hot air enters civil defense projects, it may cause burns or death to evacuees.

Method used

A civil defense filter absorber with an air cooling mechanism was designed. It uses cooling water to cool the air through the cooperation of a serpentine pipe and a cooling serpentine pipe, and a circulating pump to circulate the coolant and reduce the air temperature.

Benefits of technology

It effectively reduces air temperature, prevents high-temperature air from harming evacuees, and ensures air quality safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of civil air defense engineering, in particular to a civil air defense filtering absorber with a ventilation conversion function, which comprises a shell, a cooling cavity is arranged in the shell, cooling water is stored in the cooling cavity, a water replenishing pipe is arranged on the outer side of the shell, and an air cooling mechanism is arranged in the shell. The air cooling mechanism comprises an air guiding pipe fixedly connected to the top end of the shell, a plurality of sets of cooling coiled pipes are arranged on the two sides of the cooling cavity, the bottom end of the shell is fixedly connected with a coolant storage box, the coolant storage box is communicated with the cooling coiled pipes, and a circulating pump is installed at the bottom end of the coolant storage box. The shell is matched with the air cooling mechanism, filtered clean air is guided into the snakelike passing pipe through the air guiding pipe, heat exchange is conducted between the snakelike passing pipe and cooling water in the cooling cavity, and therefore the heat exchange efficiency of the cooling water in the cooling cavity is guaranteed, and damage caused by high-temperature air is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of civil defense engineering technology, specifically to a civil defense filter absorber with ventilation conversion function. Background Technology

[0002] Civil defense refers to the mobilization and organization of the masses by the state to take protective measures to prevent and mitigate the harm of air raids based on national defense needs. Its main purpose is to protect the lives and property of the people. In civil defense facilities, it is necessary to maintain normal indoor and outdoor ventilation to ensure air quality in the civil defense environment. Therefore, ventilation and filtration devices are an indispensable supporting equipment in civil defense.

[0003] A search revealed a patent document with publication number CN221648673U, which discloses a civil defense filter absorber with ventilation conversion function. This invention relates to the field of air conditioning equipment technology, and more particularly to a civil defense filter absorber with ventilation conversion function. Its technical solution includes a rectifier plate, a mounting bracket, a ventilation duct, and a housing. An air intake hood is bolted to one side of the housing. This invention utilizes a ventilation duct installed inside the housing to transmit air. The ventilation duct and the diverter hood, along with a first and second solenoid valve mounted on one side, control the opening and closing of the ventilation duct and diverter hood. This allows air to either enter the housing for purification or undergo simple purification through the ventilation duct before being discharged through the exhaust hood. Furthermore, the air transmission via the ventilation duct prevents contact with other components inside the housing during routine ventilation, thus ensuring excellent filtration performance of the fine filter and filter plate when air purification is required inside civil defense facilities, thereby increasing the functionality of the device.

[0004] During the use of the above-mentioned technical solutions, since weapons such as white phosphorus bombs used by modern bombers generate high temperatures after explosion, when the air-raid shelter filter absorbs the high-temperature air into the air-raid shelter, it can cause large-scale respiratory burns or even death to the refugees. The above-mentioned technical solutions lack a mechanism to cool the air, and cannot avoid the risk of refugees being burned to death.

[0005] Therefore, it is necessary to invent a human-proof filter absorber with ventilation conversion function to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a civil defense filter absorber with ventilation conversion function. By cooperating with the outer shell and the air cooling mechanism, it can deliver cooling air into the interior, thereby solving the problem that the existing technology lacks a mechanism to cool the air and cannot avoid the risk of evacuees being burned or killed.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a civil defense filter absorber with ventilation conversion function, comprising a shell, a cooling chamber with cooling water stored inside the shell, a water supply pipe installed on the outer side of the shell, and an air cooling mechanism inside the shell, the air cooling mechanism including an air intake pipe fixedly connected to the top of the shell, a serpentine pipe fixedly connected to the bottom end of the air intake pipe and located at the bottom of the cooling chamber, several sets of cooling serpentine pipes arranged on both sides of the cooling chamber, the cooling serpentine pipes fixedly connected to the inner wall of the cooling chamber, a coolant storage box fixedly connected to the bottom end of the shell and communicating with the cooling serpentine pipes, a circulation pump installed at the bottom end of the coolant storage box, and the circulation of coolant is achieved by the cooperation of the cooling serpentine pipes and other components, thereby achieving heat exchange between the cooling water inside the cooling chamber and the serpentine pipes, and thus reducing the temperature of the air inside the air intake pipe.

[0008] Preferably, an internal fan is fixedly connected to the end of the serpentine through-pipe away from the air intake pipe, and the internal fan is installed on the inner wall of the cooling chamber. An air outlet pipe is fixedly connected to the end of the internal fan away from the serpentine through-pipe, and the air outlet pipe is installed on the side of the outer shell away from the air intake pipe. The cooled air is introduced into the civil defense project through the cooperation of the air outlet pipe and the internal fan.

[0009] Preferably, the housing has a filter chamber inside, an external fan is installed on the side of the housing near the filter chamber, and a dust collection box is installed at the bottom of the housing. External air is introduced through the external fan, and dirty water and dust are collected through the dust collection box for easy replacement and cleaning.

[0010] Preferably, a perforated plate is fixedly connected to the inner wall of the filter chamber, and a number of through holes are opened on the surface of the perforated plate. A number of spray heads are fixedly connected to the bottom end of the perforated plate. Through the cooperation of the perforated plate, through holes and other parts, clean air after the dust in the air is washed away by the spray heads enters the upper part of the perforated plate through the through holes.

[0011] Preferably, a drain pipe is connected to the right side of the perforated plate, and a fixing box is fixedly connected to the outer side wall of the drain pipe and the fixing box is fixedly connected to the inner side wall of the outer shell. The bottom end of the drain pipe is located at the bottom of the cooling chamber, and cooling water is introduced into the interior of the perforated plate and the spray head through the drain pipe.

[0012] Preferably, a filter box is provided above the perforated plate, and the filter box contains a filter assembly, an activated carbon filter layer and a protective filter screen installed from top to bottom. The air is filtered multiple times through the cooperation of the filter assembly and other parts to ensure safety.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. Through the cooperation of the outer shell and the air cooling mechanism, filtered clean air is introduced into the interior of the serpentine tube through the air intake pipe, so that the serpentine tube can exchange heat with the cooling water inside the cooling chamber. At the same time, the circulation pump is started to replenish the coolant storage box to the interior of the cooling serpentine tube, thereby ensuring the heat exchange efficiency of the cooling water inside the cooling chamber. The shape of the serpentine tube and the cooling serpentine tube is used to increase the contact area with the cooling water to further improve the cooling efficiency. Finally, through the cooperation of the air outlet pipe and the internal fan, the cooled air is sent into the interior of the civil defense project to avoid damage caused by high temperature air.

[0015] 2. By cooperating with components such as the fixed box and filter box, and using the combination of the drainage pipe, the perforated plate and the spray head, the water inside the cooling chamber is taken out and sprayed onto the air introduced by the external fan, so that the dust in it falls and settles inside the dust collection box, thereby reducing the situation of dust clogging the filter box. The filter box is used to filter the air, and the perforated plate connects the filter chamber and the air intake pipe. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the internal structure of the filter box of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Outer shell; 101. Cooling chamber; 102. Filter chamber; 2. Air cooling mechanism; 201. Air intake pipe; 202. Serpentine passage pipe; 203. Cooling serpentine pipe; 204. Coolant storage box; 205. Circulation pump; 206. Air outlet pipe; 207. Internal fan; 3. External fan; 4. Ash collection box; 5. Drainage pipe; 6. Fixing box; 7. Filter box; 701. Filter assembly; 702. Activated carbon filter layer; 703. Protective filter screen; 8. Perforated plate; 9. Through hole; 10. Spray head. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides, for example Figure 1-4 The illustrated air-raid shelter filter absorber with ventilation conversion function includes a housing 1. A cooling chamber 101 is formed inside the housing 1, and the cooling chamber 101 stores cooling water. A water supply pipe is installed on the outside of the housing 1 to replenish the cooling water in the cooling chamber 101 when it is insufficient. An air cooling mechanism 2 is installed inside the housing 1. The air cooling mechanism 2 includes an air intake pipe 201 fixedly connected to the top of the housing 1. A serpentine passage pipe 202 is fixedly connected to the bottom end of the air intake pipe 201 and is located at the bottom of the cooling chamber 101, increasing heat exchange through the serpentine passage pipe 202. The cooling chamber 101 has several sets of cooling serpentine pipes 203 on both sides, which facilitate the flow of coolant. The cooling serpentine pipes 203 are fixedly connected to the inner wall of the cooling chamber 101. A coolant storage box 204 is fixedly connected to the bottom end of the outer shell 1 and communicates with the cooling serpentine pipes 203. A circulation pump 205 is installed at the bottom end of the coolant storage box 204. The circulation of coolant is achieved through the cooperation of the cooling serpentine pipes 203 and other components, thereby achieving heat exchange between the cooling water inside the cooling chamber 101 and the serpentine pipes 202, thus reducing heat loss. The air temperature inside the air intake pipe 201 is controlled by an internal fan 207 fixedly connected to the end of the serpentine pipe 202 away from the air intake pipe 201, and the internal fan 207 is installed on the inner wall of the cooling chamber 101. An exhaust pipe 206 is fixedly connected to the end of the internal fan 207 away from the serpentine pipe 202, and the exhaust pipe 206 is installed on the side of the outer shell 1 away from the air intake pipe 201. The exhaust pipe 206, in conjunction with the internal fan 207, introduces cooled air into the civil defense project. The outer shell 1, in conjunction with the air cooling mechanism 2, draws filtered clean air through the air intake pipe 201. The serpentine pipe 202 is inserted into the interior of the cooling serpentine pipe 203, allowing it to exchange heat with the cooling water inside the cooling chamber 101. At the same time, the circulating pump 205 is activated to replenish the coolant inside the cooling serpentine pipe 203 via the coolant storage box 204, thereby ensuring the heat exchange efficiency of the cooling water inside the cooling chamber 101. The shapes of the serpentine pipe 202 and the cooling serpentine pipe 203 are used to increase their contact area with the cooling water to further improve the cooling efficiency. Finally, the cooled air is sent into the civil defense project through the air outlet pipe 206 in conjunction with the internal fan 207 to avoid damage caused by high-temperature air.

[0025] Refer to the instruction manual appendix Figure 1-4The outer casing 1 has a filter chamber 102 inside. An external fan 3 is installed on the side of the outer casing 1 near the filter chamber 102. A dust collection box 4 is installed at the bottom of the outer casing 1. External air is introduced through the external fan 3, and dirty water and dust are collected through the dust collection box 4 for easy replacement and cleaning. A perforated plate 8 is fixedly connected to the inner wall of the filter chamber 102. Several sets of through holes 9 are opened on the surface of the perforated plate 8. Several sets of spray heads 10 are fixedly connected to the bottom of the perforated plate 8. Through the cooperation of the perforated plate 8, through holes 9 and other parts, clean air after the dust in the air is washed away by the spray heads 10 enters the upper part of the perforated plate 8 through the through holes 9. A drain pipe 5 is connected to the right side of the perforated plate 8. A fixing box 6 is fixedly connected to the outer wall of the drain pipe 5 and the fixing box 6 is fixedly connected to the inner wall of the outer casing 1. The bottom end of the drain pipe 5 is located at the cooling... At the bottom of cavity 101, cooling water is introduced into the interior of perforated plate 8 and spray head 10 through drainage pipe 5. A filter box 7 is installed above the perforated plate 8. Inside the filter box 7, from top to bottom, a filter assembly 701, an activated carbon filter layer 702, and a protective filter screen 703 are installed respectively. The air is filtered multiple times through the cooperation of the filter assembly 701 and other parts to ensure safety. Through the cooperation of fixed box 6 and filter box 7 and other parts, the water inside the cooling cavity 101 is taken out and sprayed onto the air introduced by external fan 3 using drainage pipe 5, perforated plate 8 and spray head 10, so that the dust in it falls and settles into the dust collection box 4, thereby reducing the situation of dust clogging filter box 7. The filter box 7 is used to filter the air and the perforated plate 8 connects the filter cavity 102 and the air intake pipe 201.

[0026] The working principle of this practical application is as follows:

[0027] Refer to the instruction manual appendix Figure 1-4 When the outer casing 1 is working, external air is introduced into the filter chamber 102 by the external fan 3. Water inside the cooling chamber 101 is extracted using the guide pipe 5, the perforated plate 8, and the spray head 10 to spray and brush the air introduced by the external fan 3, causing dust to settle into the dust collection box 4. This facilitates centralized treatment of toxic gases and liquids and reduces dust clogging of the filter box 7. The filter box 7 filters the air, and the perforated plate 8 connects the filter chamber 102 to the air intake pipe 201, allowing the filtered air to enter the air intake pipe 201. Inside the 01, the serpentine pipe 202 exchanges heat with the cooling water inside the cooling chamber 101. At the same time, the circulating pump 205 is activated to replenish the coolant inside the cooling serpentine pipe 203 with coolant from the coolant storage box 204, thereby ensuring the heat exchange efficiency of the cooling water inside the cooling chamber 101. The shape of the serpentine pipe 202 and the cooling serpentine pipe 203 increases their contact area with the cooling water to further improve the cooling efficiency. Finally, the cooled air is sent into the civil defense project through the cooperation of the air outlet pipe 206 and the internal fan 207 to avoid damage caused by high temperature air.

[0028] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A civil defense filter absorber with ventilation conversion function, comprising a housing (1), characterized in that: The outer shell (1) has a cooling chamber (101) inside and the cooling chamber (101) stores cooling water. A water supply pipe is installed on the outside of the outer shell (1). An air cooling mechanism (2) is provided inside the outer shell (1). The air cooling mechanism (2) includes an air intake pipe (201) fixedly connected to the top of the outer shell (1). A serpentine pipe (202) is fixedly connected to the bottom end of the air intake pipe (201) and the serpentine pipe (202) is located at the bottom of the cooling chamber (101). Several sets of cooling serpentine pipes (203) are provided on both sides of the cooling chamber (101). The cooling serpentine pipes (203) are fixedly connected to the inner wall of the cooling chamber (101). A coolant storage box (204) is fixedly connected to the bottom end of the outer shell (1) and the coolant storage box (204) communicates with the cooling serpentine pipes (203). A circulation pump (205) is installed at the bottom end of the coolant storage box (204).

2. The air-raid shelter filter absorber with ventilation conversion function according to claim 1, characterized in that: An internal fan (207) is fixedly connected to one end of the serpentine pipe (202) away from the air intake pipe (201), and the internal fan (207) is installed on the inner wall of the cooling chamber (101). An air outlet pipe (206) is fixedly connected to one end of the internal fan (207) away from the serpentine pipe (202), and the air outlet pipe (206) is installed on the side of the outer shell (1) away from the air intake pipe (201).

3. A civil defense filter absorber with ventilation conversion function according to claim 1, characterized in that: The outer shell (1) has a filter chamber (102) inside, and an external fan (3) is installed on the side of the outer shell (1) near the filter chamber (102). A dust collection box (4) is installed at the bottom of the outer shell (1).

4. A civil defense filter absorber with ventilation conversion function according to claim 3, characterized in that: The inner wall of the filter chamber (102) is fixedly connected to a perforated plate (8), and the surface of the perforated plate (8) is provided with several sets of through holes (9). The bottom end of the perforated plate (8) is fixedly connected to several sets of spray heads (10).

5. A civil defense filter absorber with ventilation conversion function according to claim 4, characterized in that: The right side of the perforated plate (8) is connected to a drain pipe (5), and a fixing box (6) is fixedly connected to the outer side wall of the drain pipe (5) and the fixing box (6) is fixedly connected to the inner side wall of the outer shell (1). The bottom end of the drain pipe (5) is located at the bottom of the cooling cavity (101).

6. A civil defense filter absorber with ventilation conversion function according to claim 4, characterized in that: A filter box (7) is provided above the perforated plate (8). The filter box (7) contains a filter assembly (701), an activated carbon filter layer (702), and a protective filter screen (703) installed from top to bottom.

Citation Information

Patent Citations

  • Efficient civil air defense ventilation filtering absorber

    CN221648673U