Ship inlet air purification system
The two-stage purification system, consisting of an electrostatic adsorption purification unit and a static pressure box, solves the problem that existing ship air intake purification systems cannot simultaneously and efficiently sterilize and filter large particulate dust. It achieves efficient purification of ship air intake, reduces space occupation, and is suitable for various ship environments containing bacteria, viruses, and large particulate dust.
Patent Information
- Application Number
- CN202520777275.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-23
AI Technical Summary
Existing ship air intake purification systems cannot simultaneously and efficiently sterilize and disinfect while filtering large particulate dust. Furthermore, the equipment is large in size, occupies a lot of space, and is difficult to deploy in environments with limited space.
The system employs a two-stage purification system consisting of an electrostatic adsorption purification unit and a static pressure box. The electrostatic adsorption purification unit is placed on the open deck for primary purification, while the static pressure box is equipped with a seawater spray system for secondary purification. The electrostatic adsorption purification unit does not occupy the space of the air duct, and the static pressure box is equipped with a seawater spray system for secondary purification.
It achieves efficient purification of ship intake air, eliminates bacteria, viruses and large particulate dust, reduces space requirements, and is suitable for various ship environments containing bacteria, viruses and large particulate dust.
Smart Images

Figure CN223934946U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine technology, and in particular to a marine air intake purification system. Background Technology
[0002] Ventilation within cabins involves introducing clean air from the outside environment to replace the existing air. However, some shipboard working environments contain bacteria, viruses, and large particulate dust, which can affect cabin air quality, hindering equipment operation and personnel health. Therefore, air intake purification is necessary. Existing ventilation and purification devices mainly include bag filters, micro-electrostatic purifiers, and water mist spray systems. Bag filters and micro-electrostatic purifiers are relatively large and typically placed inside the cabin, making installation difficult and maintenance inconvenient in situations with limited space. Micro-electrostatic purifiers can generally adsorb bacteria and viruses, while bag filters and water mist spray systems can only filter large particulate dust. Currently, ship purification systems are all single-stage filtration systems, capable of only sterilization or filtration of large particulate dust, unable to simultaneously meet the needs of both sterilization and filtration. Furthermore, current equipment is large and occupies significant space, making it unsuitable for space-constrained equipment placement. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the above-mentioned defects in the existing technology and provide a ship air intake purification system.
[0004] The present invention solves the above-mentioned technical problems through the following technical solution:
[0005] A ship's air intake purification system includes an air duct located inside the bulkhead and an air pipe connecting to the cabin; it also includes an electrostatic adsorption purification unit and a plenum chamber; the electrostatic adsorption purification unit is located outside the bulkhead; the electrostatic adsorption purification unit is connected to the air inlet end of the air duct; the plenum chamber is connected to the air outlet end of the air duct; the air pipe is connected to the plenum chamber and a fan is installed on the air pipe; a spray pipe is installed inside the plenum chamber and a nozzle is installed on the spray pipe; a water baffle is installed inside the plenum chamber to prevent spray water from entering the air pipe; and a drain pipe is installed at the bottom of the plenum chamber.
[0006] Furthermore, the nozzle is located at the top of the static pressure chamber.
[0007] Furthermore, the spray pipe is connected to a seawater pipe.
[0008] Furthermore, the spray pipe is connected to a fresh water pipe.
[0009] Furthermore, the drainage pipes extend overboard.
[0010] Furthermore, the air inlet of the electrostatic adsorption purification unit is equipped with louvers.
[0011] Furthermore, the static pressure box is located on the inside of the cabin wall.
[0012] Furthermore, the water baffle is located on the inner side of the air outlet end of the static pressure box.
[0013] Furthermore, the electrostatic adsorption purification unit is located above the open deck on the exterior of the superstructure.
[0014] Furthermore, the electrostatic adsorption purification unit is connected to the air duct via a ventilation duct.
[0015] The beneficial effects of this utility model are as follows: The ship air intake purification system of this utility model adopts a two-stage purification process, with primary air intake purification by an electrostatic adsorption purification unit and secondary air intake purification by a static pressure tank water spray system. The primary purification unit, the electrostatic adsorption purification unit, is placed on the open deck, while the secondary purification seawater spray system is located in the static pressure tank, thus not occupying air ducts and reducing space requirements. It can eliminate bacteria, viruses, and large particulate dust in the ventilated air, achieving the purpose of purifying the incoming air and providing excellent air purification effects. This ship air intake purification system of this utility model is applicable to any ship containing bacteria, viruses, and large particulate dust, possessing versatility and high reliability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention. Detailed Implementation
[0017] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.
[0018] like Figure 1 As shown, a ship air intake purification system includes an air duct 10 located inside the bulkhead 20 and an air pipe 11 that can connect to the cabin; it also includes an electrostatic adsorption purification unit 12 and a static pressure box 13.
[0019] The electrostatic adsorption purification unit 12 is located on the outside of the enclosure wall 20. The electrostatic adsorption purification unit 12 is connected to the air inlet of the air duct 10.
[0020] The air inlet of the electrostatic adsorption purification unit 12 is equipped with louvers 19.
[0021] The electrostatic adsorption purification unit 12 is located above the open deck 22 on the exterior of the superstructure.
[0022] The electrostatic adsorption purification unit 12 is connected to the air duct 10 through the ventilation duct 21.
[0023] The static pressure box 13 is connected to the air outlet of the air duct 10. The air duct 11 is connected to the static pressure box 13, and a fan 14 is installed on the air duct 11.
[0024] The static pressure chamber 13 is equipped with a spray pipe 15, and the spray pipe 15 is equipped with a nozzle 16. The nozzle 16 is located at the top of the static pressure chamber cavity.
[0025] Sprinkler pipe 15 is connected to a seawater pipe (not shown in the figure).
[0026] In other embodiments, the spray pipe is connected to a fresh water pipe.
[0027] The static pressure box 13 is equipped with a water baffle 17 to prevent spray water from entering the air duct. The water baffle 17 is located on the inside of the air outlet end of the static pressure box.
[0028] The bottom of the static pressure tank 13 is provided with a drain pipe 18. The drain pipe 18 extends overboard.
[0029] The ship air intake purification system of this utility model includes louvers, electrostatic adsorption purification unit, air duct, fan, air pipe, static pressure box, seawater pipe, nozzle, water baffle and drainage pipe, etc.
[0030] Louvers are installed at the air inlet of the electrostatic adsorption purification unit, which is placed on the open deck above the superstructure. The unit's casing is made of stainless steel for corrosion resistance. Maintenance space for the unit is located on the side, eliminating the need to remove the louvers and ductwork for repairs. An opening in the bulkhead where the air duct is located allows the electrostatic adsorption purification unit to connect to the duct via ventilation pipes. The incoming air undergoes primary purification through the electrostatic adsorption purification unit. Air then enters the duct and reaches the plenum chamber. Spray pipes with several nozzles are installed at the plenum chamber's air inlet, and water-blocking strips are installed at the plenum chamber's air outlet. Seawater is sprayed from the nozzles through seawater pipes, forming water droplets that adhere to the dust surface and fall to the bottom of the plenum chamber under the action of the water-blocking strips, undergoing secondary purification within the plenum chamber. The seawater is discharged overboard through a drain pipe at the bottom of the plenum chamber, and the purified air is then transported to the compartments via a fan and ductwork.
[0031] This system features two-stage purification: primary air intake purification via electrostatic adsorption and secondary air intake purification via a static pressure box and seawater spray. This results in a higher purification rate and better purification effect. The primary purification components include louvers and the electrostatic adsorption purification unit; the secondary purification components include a static pressure box, seawater pipes, and nozzles, which generate seawater mist to adsorb dust from the incoming air.
[0032] The electrostatic adsorption purification unit is placed on the open deck outside the superstructure. The louvers are installed at the inlet of the electrostatic adsorption purification unit, which does not require space occupation of the superstructure cabin and air duct. Moreover, the opening of the air duct in the cabin wall is not a water inlet and there is no requirement for the opening height, which can effectively expand the opening area of the air duct wall to meet the wind speed requirements.
[0033] The seawater spraying components are located in the plenum chamber, which does not occupy the air duct and can reduce space requirements. The plenum chamber is equipped with a collection and discharge device for the sprayed seawater, including a water baffle and a drain pipe located at the bottom of the plenum chamber. The drain pipe can discharge the seawater to the outside of the ship.
[0034] This utility model's ship air intake purification system adopts a two-stage purification process: primary air intake purification by an electrostatic adsorption purification unit and secondary air intake purification by a static pressure tank water spray system. The primary purification device, the electrostatic adsorption purification unit, is placed on the open deck, while the secondary purification device, the seawater spray system, is located in the static pressure tank. This does not occupy the air duct, thus reducing space requirements. It can eliminate bacteria, viruses, and large particulate dust in the ventilated air, achieving the purpose of purifying the incoming air and providing excellent air purification effect.
[0035] The ship air intake purification system of this invention is applicable to any ship containing bacteria, viruses, or large particulate dust, and is versatile and highly reliable.
[0036] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.
Claims
1. A ship's air intake purification system, comprising an air duct disposed inside the bulkhead and an air pipe capable of connecting to the cabin; characterized in that, It also includes an electrostatic adsorption purification unit and a static pressure box; the electrostatic adsorption purification unit is located on the outside of the enclosure wall; the electrostatic adsorption purification unit is connected to the air inlet end of the air duct; the static pressure box is connected to the air outlet end of the air duct; the air duct is connected to the static pressure box, and a fan is installed on the air duct; a spray pipe is installed inside the static pressure box, and a nozzle is installed on the spray pipe; a water baffle is installed inside the static pressure box to prevent spray water from entering the air duct; a drain pipe is installed at the bottom of the static pressure box.
2. The ship air intake purification system as described in claim 1, characterized in that, The nozzle is located at the top of the static pressure chamber.
3. The ship air intake purification system as described in claim 1, characterized in that, The sprinkler pipe is connected to a seawater pipe.
4. The ship air intake purification system as described in claim 1, characterized in that, The sprinkler pipe is connected to a fresh water pipe.
5. The ship air intake purification system as described in claim 1, characterized in that, The drain pipe extends overboard.
6. The ship air intake purification system as described in claim 1, characterized in that, The air inlet of the electrostatic adsorption purification unit is equipped with louvers.
7. The ship air intake purification system as described in claim 1, characterized in that, The static pressure tank is located on the inside of the cabin wall.
8. The ship air intake purification system as described in claim 1, characterized in that, The water baffle is located on the inside of the air outlet end of the static pressure box.
9. The ship air intake purification system as described in claim 1, characterized in that, The electrostatic adsorption purification unit is located above the open deck on the exterior of the superstructure.
10. The ship air intake purification system as described in claim 9, characterized in that, The electrostatic adsorption purification unit is connected to the air duct through a ventilation duct.