Fresh water circulating system for purifying inlet air of ship

Abstract

The invention discloses a fresh water circulation system for ship inlet air purification. The fresh water circulation system comprises an air duct, an electrostatic adsorption purification unit, a static pressure box and a flushing and spraying fresh water precipitation cabin, the electrostatic adsorption purification unit is connected with an air inlet of the air duct; the plenum chamber is connected with an air outlet of the air duct; the static pressure box is connected with an air pipe capable of extending into the cabin; the flushing spraying fresh water precipitation cabin is connected with a spraying pipe and a flushing pipe; the spraying pipe extends into the static pressure box, and the flushing pipe extends into the electrostatic adsorption purification unit; a water leakage opening is formed in the deck below the electrostatic adsorption purification unit, and a first water drainage pipe is arranged between the water leakage opening and the flushing spraying fresh water precipitation cabin; and a second drainage pipe is arranged between the static pressure box and the flushing spraying fresh water precipitation cabin. Flushing and spraying fresh water is recycled, fresh water can be effectively saved, corrosion of the static pressure box, the draught fan and the air pipe is reduced, and the service life of a ventilation system is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of ships, and in particular to a fresh water circulation system for purifying ship intake air. Background Art

[0002] Cabin ventilation is achieved by introducing clean air from the outside environment to replace the air in the cabin. However, when the working environment of some ships contains bacteria, viruses, and large particles of dust, it will affect the cabin air quality, which is not conducive to the normal operation of equipment and the health of personnel. It is necessary to use an electrostatic adsorption purification unit and a static pressure box water mist spray for two-stage purification.

[0003] The electrostatic adsorption purification unit relies on the micro-electrostatic module for sterilization and disinfection. When there are many pollutants in the micro-electrostatic module, the micro-electrostatic module needs to be flushed online with fresh water, and the flushing water is discharged to the deck and discharged overboard, resulting in a waste of fresh water resources. The water mist spray device generally uses seawater. However, seawater is easy to corrode the pipeline, and the replacement of the air duct is a large project. If open fresh water spray is used, the usage is large and the cost is high. Summary of the invention

[0004] In order to overcome the above-mentioned defects in the prior art, the present invention provides a fresh water circulation system for ship intake air purification.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A fresh water circulation system for purifying air intake of a ship comprises an air duct; it is characterized in that it also comprises an electrostatic adsorption purification unit, a static pressure box and a flushing and spraying fresh water sedimentation tank; the electrostatic adsorption purification unit is arranged above the deck, and the electrostatic adsorption purification unit is connected to the air inlet of the air duct; the static pressure box is connected to the air outlet of the air duct; the static pressure box is connected to an air duct that can extend into the cabin; the flushing and spraying fresh water sedimentation tank is connected to a spray pipe and a flushing pipe; the spray pipe extends into the static pressure box, and the flushing pipe extends into the electrostatic adsorption purification unit; the spray pipe in the static pressure box is provided with a nozzle; a water leakage port is provided on the deck below the electrostatic adsorption purification unit, and a first drain pipe is provided between the water leakage port and the flushing and spraying fresh water sedimentation tank; a second drain pipe is provided between the static pressure box and the flushing and spraying fresh water sedimentation tank; a mud discharge pipe is provided at the bottom of the flushing and spraying fresh water sedimentation tank, and the mud discharge pipe extends to the overboard.

[0007] Furthermore, the flushing spray fresh water sedimentation tank is provided with a partition, which separates the flushing spray fresh water sedimentation tank into a first sedimentation area and a second sedimentation area; the drainage outlets of the first drain pipe and the second drain pipe are located in the first sedimentation area; the second sedimentation area is provided with a suction port, and the spray pipe and the flushing pipe are both connected to the suction port.

[0008] Further, the position of the top of the partition is higher than the position of the suction port.

[0009] Further, the height of the flushing and spraying fresh water sedimentation tank is H, and the distance from the top of the partition to the top of the flushing and spraying fresh water sedimentation tank is 0.3H - 0.4H; the distance from the suction port to the top of the flushing and spraying fresh water sedimentation tank is 0.45H - 0.55H.

[0010] Further, mud water drain valves are provided at the bottoms of both the first sedimentation area and the second sedimentation area, and a mud discharge pipe is connected to the mud water drain valve.

[0011] Further, the suction port is connected to a main fresh water pipe, the spraying pipe and the flushing pipe are both connected to the main fresh water pipe, and a fresh water delivery pump is provided on the main fresh water pipe.

[0012] Further, a water baffle for preventing the sprayed water from entering the air duct is provided in the static pressure box.

[0013] Further, a fan is provided on the air duct.

[0014] Further, a louver is provided at the air inlet end of the electrostatic adsorption purification unit.

[0015] Further, the air duct is provided on the inner side of the cabin bulkhead, and the electrostatic adsorption purification unit is provided on the outer side of the cabin bulkhead.

[0016] The beneficial effects of the present invention are as follows: By collecting the sprayed fresh water in the static pressure box and the flushing water in the electrostatic adsorption purification unit into the flushing and spraying fresh water sedimentation tank, partitioning is carried out in the tank, the flushing and spraying fresh water is purified by sedimentation, fresh water and mud are separated, and the recycling of the flushing and spraying fresh water is realized, which can effectively save fresh water, reduce the corrosion of the static pressure box, the fan and the air duct, and extend the service life of the ventilation system. The present invention is applicable to ships in working environments containing bacteria, viruses and large-particle dust, and has universality and high reliability. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present invention. Detailed Embodiments

[0018] The following is a preferred embodiment, and the present invention will be described more clearly and completely in combination with the drawings.

[0019] As Figure 1 shown, a fresh water circulation system for ship air inlet purification includes an air duct 10, an electrostatic adsorption purification unit 12, a static pressure box 11 and a flushing and spraying fresh water sedimentation tank 20.

[0020] The air duct 10 is provided on the inner side of the cabin bulkhead 30, and the electrostatic adsorption purification unit 12 is provided on the outer side of the cabin bulkhead 30. A louver 15 is provided at the air inlet end of the electrostatic adsorption purification unit 12.

[0021] The electrostatic adsorption purification unit 12 is arranged above the deck 13, and the electrostatic adsorption purification unit 12 is connected to the air inlet of the air duct 10; the static pressure box 11 is connected to the air outlet of the air duct 10; a duct 14 that can extend into the cabin is connected to the static pressure box 11.

[0022] A fan 19 is arranged on the duct 14. A water baffle 18 for preventing spray water from entering the duct is arranged in the static pressure box 11.

[0023] The flushing spray fresh water sedimentation tank 20 is connected with a spray pipe 21 and a flushing pipe 22; the spray pipe 21 extends into the static pressure box 11, and the flushing pipe 22 extends into the electrostatic adsorption purification unit 12; a nozzle 27 is arranged on the spray pipe in the static pressure box.

[0024] A water leakage port 16 is arranged on the deck 13 below the electrostatic adsorption purification unit 12, and a cofferdam plate 34 is arranged on one side of the water leakage port.

[0025] A first drain pipe 31 is arranged between the water leakage port 16 and the flushing spray fresh water sedimentation tank 20; a second drain pipe 32 is arranged between the static pressure box 11 and the flushing spray fresh water sedimentation tank 20; a mud discharge pipe 17 is arranged at the bottom of the flushing spray fresh water sedimentation tank 20, and the mud discharge pipe extends to the outside of the ship.

[0026] The flushing spray fresh water sedimentation tank 20 is provided with a partition plate 23, and the partition plate 23 divides the flushing spray fresh water sedimentation tank into a first sedimentation area 41 and a second sedimentation area 42; the drainage outlets of the first drain pipe 31 and the second drain pipe 32 are located in the first sedimentation area 41; a suction port 24 is arranged in the second sedimentation area 42, and the spray pipe 21 and the flushing pipe 22 are connected to the suction port 24.

[0027] The suction port 24 is connected with a fresh water main pipe 28, both the spray pipe 21 and the flushing pipe 22 are connected to the fresh water main pipe 28, and a fresh water delivery pump 26 is arranged on the fresh water main pipe 28.

[0028] The position of the top of the partition plate 23 is higher than the position of the suction port 24.

[0029] The height of the flushing spray fresh water sedimentation tank 20 is H, the distance from the top of the partition plate to the top of the flushing spray fresh water sedimentation tank is 0.3H - 0.4H; the distance from the suction port to the top of the flushing spray fresh water sedimentation tank is 0.45H - 0.55H.

[0030] Sludge water discharge valves 25 are arranged at the bottoms of both the first sedimentation area 41 and the second sedimentation area 42, and the mud discharge pipe 17 is connected to the sludge water discharge valves 25.

[0031] In this solution, the air purification process is as follows: the outdoor air is purified after passing through the louver, the electrostatic adsorption purification unit, the air duct, and the static pressure box, and the purified air enters the duct and then enters each cabin.

[0032] Specifically:

[0033] The electrostatic adsorption purification unit purifies the incoming air once to adsorb bacteria and viruses. After the air enters the air duct, it reaches the static pressure box. The nozzles of the spray pipes in the static pressure box spray water mist, and the water mist adheres to the surface of the dust to form water droplets. Under the action of the water baffle, the water droplets fall to the bottom of the static pressure box, and secondary air intake purification is carried out in the static pressure box to remove large particle dust. The purified incoming air reaches the fan through the outlet of the static pressure box and is sent into the cabin by the fan through the air duct.

[0034] The sewage in the static pressure box flows into the first precipitation area of the flushing spray fresh water sedimentation tank through the second drain pipe.

[0035] When daily maintenance of the electrostatic adsorption purification unit is required, the flushing pipe can spray water to wash the electrostatic adsorption purification unit. The sewage flowing out of the electrostatic adsorption purification unit enters the water leakage port and then flows into the first precipitation area of the flushing spray fresh water sedimentation tank through the first drain pipe.

[0036] The sewage passing through the second drain pipe and / or the first drain pipe enters the flushing spray fresh water sedimentation tank, and is respectively subjected to sedimentation purification in the first precipitation area and the second precipitation area. The purified fresh water is transported to the spray pipe and the flushing pipe by the fresh water transfer pump, thus forming a fresh water cycle.

[0037] The slurry in the flushing spray fresh water sedimentation tank is discharged to the outside of the ship through the slurry drain valve and the slurry discharge pipe.

[0038] In the present invention, the spray fresh water in the static pressure box and the flushing water in the electrostatic adsorption purification unit are collected into the flushing spray fresh water sedimentation tank, partitioned in the tank, sedimentation-purified the flushing spray fresh water, separated the fresh water and the slurry, realized the recycling of the flushing spray fresh water, effectively saved fresh water, reduced the corrosion of the static pressure box, the fan and the air duct, and extended the service life of the ventilation system.

[0039] The present invention is applicable to ships in working environments containing bacteria, viruses and large particle dust, has universality and high reliability.

[0040] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A fresh water circulation system for ship inlet air purification, which comprises an air duct; characterized in that, It also includes an electrostatic adsorption purification unit, a static pressure box, and a flushing and spraying fresh water sedimentation tank; the electrostatic adsorption purification unit is arranged above the deck, and the electrostatic adsorption purification unit is connected to the air inlet of the air duct; the static pressure box is connected to the air outlet of the air duct; the static pressure box is connected with an air duct that can extend into the cabin. The flushing and spraying fresh water sedimentation tank is connected with a spraying pipe and a flushing pipe; the spraying pipe extends into the static pressure box, and the flushing pipe extends into the electrostatic adsorption purification unit; the spraying pipe in the static pressure box is provided with a nozzle; a water leakage port is arranged on the deck below the electrostatic adsorption purification unit, and a first drain pipe is arranged between the water leakage port and the flushing and spraying fresh water sedimentation tank; a second drain pipe is arranged between the static pressure box and the flushing and spraying fresh water sedimentation tank; a mud discharge pipe is arranged at the bottom of the flushing and spraying fresh water sedimentation tank, and the mud discharge pipe extends to the outside of the ship's side.

2. The fresh water circulation system for ship air intake purification according to claim 1, characterized in that, The flushing and spraying fresh water sedimentation tank is provided with a partition board, and the partition board divides the flushing and spraying fresh water sedimentation tank into a first sedimentation area and a second sedimentation area; the drainage outlets of the first drain pipe and the second drain pipe are located in the first sedimentation area; the second sedimentation area is provided with a suction port, and both the spraying pipe and the flushing pipe are connected to the suction port.

3. The fresh water circulation system for ship air intake purification according to claim 2, characterized in that, The position of the top of the partition board is higher than the position of the suction port.

4. The fresh water circulation system for ship air intake purification according to claim 2, characterized in that, The height of the flushing and spraying fresh water sedimentation tank is H, the distance from the top of the partition board to the top of the flushing and spraying fresh water sedimentation tank is 0.3H - 0.4H; the distance from the suction port to the top of the flushing and spraying fresh water sedimentation tank is 0.45H - 0.55H.

5. The fresh water circulation system for ship air intake purification according to claim 2, characterized in that, Mud water drain valves are arranged at the bottoms of both the first sedimentation area and the second sedimentation area, and the mud discharge pipe is connected to the mud water drain valves.

6. The fresh water circulation system for ship air intake purification according to claim 2, characterized in that, The suction port is connected with a fresh water main pipe, both the spraying pipe and the flushing pipe are connected to the fresh water main pipe, and a fresh water delivery pump is arranged on the fresh water main pipe.

7. The fresh water circulation system for ship air intake purification according to claim 1, characterized in that, A water baffle for preventing the spraying water from entering the air duct is arranged in the static pressure box.

8. The fresh water circulation system for ship inlet air purification according to claim 1, characterized in that, A fan is arranged on the air duct.

9. The fresh water circulation system for ship air intake purification according to claim 1, characterized in that, A louver is arranged at the air inlet end of the electrostatic adsorption purification unit.

10. The fresh water circulation system for ship air intake purification according to claim 1, characterized in that, The air duct is arranged inside the cabin bulkhead, and the electrostatic adsorption purification unit is arranged outside the cabin bulkhead.

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