Recyclable dust fall system for cabin ventilation and use method thereof

Abstract

The invention belongs to the technical field of ship and ocean engineering construction, and particularly discloses a recyclable dust falling system for cabin ventilation and a using method thereof. The problems that maintenance work of sailors is increased due to the fact that only filter cotton is adopted for dust falling work at present, and a large amount of ore sand dust enters a cabin when the filter cotton is replaced are effectively solved. The recyclable dust falling system comprises a circulating water cabinet, a dust water cavity and a clean water cavity are arranged in the circulating water cabinet at intervals through a filter screen, the lower end of the clean water cavity is connected with a water supply pipe, the tail end of the water supply pipe is connected with a water mist nozzle, the water mist nozzle is arranged on the front side of an air inlet shutter, and a water baffle is arranged on the periphery of the air inlet shutter. And a water receiving tank is arranged below the air inlet louver and is communicated with the dust water cavity of the circulating water cabinet through a recycling water pipe. Under the dual protection of circulating dust fall and shutter filter cotton, the ventilation quality of the cabin is ensured, the maintenance frequency of the filter cotton is effectively reduced, and the body health of cabin crew is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of ship and marine engineering construction, and in particular relates to a recyclable dust reduction system for cabin ventilation and a method of using the system. Background Art

[0002] Engine room ventilation is a crucial auxiliary system for ship operations, effectively maintaining the engine room environment, promoting heat dissipation from equipment, reducing the accumulation of harmful gases, and ensuring the combustion air requirements of equipment. Considering the current operating conditions of ore carriers during loading and unloading, the ore dust content in the engine room ventilation system inevitably increases, which can harm the health of crew members, increase wear on mechanical components, and increase the workload of daily maintenance.

[0003] At present, the main method of reducing the mineral sand dust content in the cabin ventilation is to install filter cotton between the air inlet louvers and the air inlet fan. The dust reduction efficiency is determined by the physical properties of the filter.

[0004] Due to the long loading and unloading cycles of ships, the filter pads that filter ore sand dust cannot automatically clean themselves after filtering it, causing blockage. This increases the air inlet resistance of the engine room fan, reduces the ventilation efficiency of the engine room, and has a negative impact on the crew's working environment, equipment heat dissipation, the removal of harmful gases, and equipment air demand. Due to the large number and size of the filter pads, frequent manual replacement is required after blockage. Therefore, the use of filter pads alone for dust reduction not only increases the maintenance work of the crew, but also inevitably causes a large amount of ore sand dust to enter the engine room during replacement, causing harm. Summary of the Invention

[0005] One object of the present invention is to provide a recyclable dust reduction system for cabin ventilation, which effectively solves the current problem of increased crew maintenance work caused by using only filter cotton for dust reduction, and the problem of large amounts of mineral sand dust entering the cabin when replacing the filter cotton.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A recyclable dust reduction system for cabin ventilation is provided, wherein the cabin ventilation is provided with an air inlet louver and an air inlet fan, the air inlet fan is located at the rear side of the air inlet louver, and filter cotton is provided between the air inlet louver and the air inlet fan.

[0008] The recyclable dust reduction system includes a circulating water tank, in which a dust water chamber and a clean water chamber are separated by a filter screen. The lower end of the clean water chamber is connected to a water supply pipe, and the end of the water supply pipe is connected to a water mist nozzle. The water mist nozzle is arranged on the front side of the air inlet louver, and a water baffle is arranged around the air inlet louver. A water receiving trough is provided below the air inlet louver, and the water receiving trough is connected to the dust water chamber of the circulating water tank through a recovery water pipe.

[0009] Furthermore, the water supply pipe is connected to a pneumatic diaphragm pump, and a Y-type filter is provided on the water supply pipe located in front of the pneumatic diaphragm pump.

[0010] Furthermore, the water supply pipe is also provided with a first stop valve, a second stop valve, a discharge valve, a first pressure gauge and a second pressure gauge. The first stop valve is located in front of the Y-type filter, the second stop valve is located behind the pneumatic diaphragm pump, the discharge valve is located behind the second stop valve, the first pressure gauge is located between the Y-type filter and the pneumatic diaphragm pump, and the second pressure gauge is located between the pneumatic diaphragm pump and the second stop valve.

[0011] Furthermore, the end of the water supply pipe is divided into multiple branch pipes, and the end of each branch pipe is connected to a water mist nozzle.

[0012] Furthermore, the circulating water tank is open, and the bottom ends of the dust water chamber and the clean water chamber of the circulating water tank are both provided with drain plugs.

[0013] Furthermore, an automatic water replenishing device is provided on the upper part of the clean water chamber, and the automatic water replenishing device includes an automatic water replenishing valve, a water replenishing pipe and a third stop valve.

[0014] Another object of the present invention is to provide a method for using a recyclable dust suppression system for cabin ventilation. Clean water in a clean water chamber is atomized and sprayed through a water supply pipe and a water mist nozzle, causing the mineral sand dust to merge with the clean water to form dust water. The dust water then flows through a water baffle, a water receiving trough, and a water recovery pipe into the dust water chamber within a circulating water tank. There, the dust water settles and stratifies. The upper portion of the settled and stratified clean water passes through a filter and enters the clean water chamber. Finally, the clean water is recycled through the water supply pipe.

[0015] Compared with the prior art, the beneficial technical effects of the present invention are:

[0016] (1) Under the dual protection of recyclable dust suppression and louver filter cotton, the present invention ensures that the cabin ventilation quality is always in normal use state, effectively reduces the number of times ship users need to maintain the louver filter cotton, saves ship maintenance costs, improves the safety factor of cabin equipment use, and protects the health of cabin crew members.

[0017] (2) The present invention can use water mist to concentrate mineral sand dust in the air in a circulating water tank. The dust reduction process is clean and environmentally friendly. After multiple filtrations, the clean water that meets the requirements is atomized for dust reduction, which is energy-saving and efficient.

[0018] (3) The circulating water tank of the present invention is openly arranged, which is convenient for cleaning the settled dust, and an automatic water replenishing device is provided, which makes the subsequent maintenance by the crew simpler and more convenient, and improves the safety factor of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the connection structure of the recyclable dust reduction system of the present invention.

[0020] Figure 2 yes Figure 1 Cross-sectional view along line AA, where the arrow indicates the wind direction.

[0021] Explanation of the reference numerals: air inlet louver - 1; filter cotton - 2; circulating water tank - 3; filter screen - 4; dust water chamber - 5; clean water chamber - 6; water supply pipe - 7; mist nozzle - 8; water baffle - 9; water receiving trough - 10; water recovery pipe - 11; pneumatic diaphragm pump - 12; Y-type filter - 13; first stop valve - 14; second stop valve - 15; first pressure gauge - 16; second pressure gauge - 17; discharge valve - 18; discharge plug - 19; automatic water replenishment valve - 20; third stop valve - 21. DETAILED DESCRIPTION

[0022] Example 1: A recyclable dust reduction system for cabin ventilation, wherein an air inlet louver 1 and an air inlet fan are provided at the cabin ventilation area. The air inlet fan is located at the rear side of the air inlet louver 1 , and a filter cotton 2 is provided between the air inlet louver 1 and the air inlet fan.

[0023] like Figure 1 As shown, the recyclable dust reduction system includes a circulating water tank 3, in which a dust water chamber 5 and a clean water chamber 6 are separated by a filter screen 4. The dust water settles and stratifies in the dust water chamber 5, and the upper part of the clean water after sedimentation and stratification enters the clean water chamber 6 through the filter screen 4.

[0024] like Figure 1 As shown, the lower end of the clean water chamber 6 is provided with a water outlet, which is connected to a water supply pipe 7. The end of the water supply pipe 7 is divided into two branch pipes, and the end of each branch pipe is connected to a water mist nozzle 8. Figure 2 As shown, a water mist nozzle 8 is located in front of the air inlet louver 1. A water baffle 9 is provided around the air inlet louver 1. A water receiving trough 10 is provided below the air inlet louver 1. The water receiving trough 10 is connected to the dust water chamber 5 of the circulating water tank 3 via a water recovery pipe 11. Clean water in the clean water chamber 6 is atomized and sprayed through the water supply pipe 7 and the water mist nozzle 8, causing the mineral sand dust to merge with the clean water to form dust water. The dust water then flows through the water baffle 9, the water receiving trough 10, and the water recovery pipe 11 into the dust water chamber 5 of the circulating water tank 3.

[0025] A pneumatic diaphragm pump 12 is connected to the water supply pipe 7. The pressure provided by the pneumatic diaphragm pump 12 atomizes the clean water in the clean water chamber 6, thereby reducing dust. A Y-type filter 13 is installed on the water supply pipe 7, located in front of the pneumatic diaphragm pump 12 (assuming that the water in the water supply pipe 7 flows from front to back).

[0026] In this embodiment, in order to ensure the stable operation of the power equipment, a first stop valve 14, a second stop valve 15, a first pressure gauge 16 and a second pressure gauge 17 are also provided on the water supply pipe 7, wherein the first stop valve 14 is located in front of the Y-type filter 13, the second stop valve 15 is located behind the pneumatic diaphragm pump 12, the first pressure gauge 16 is located between the Y-type filter 13 and the pneumatic diaphragm pump 12, and the second pressure gauge 17 is located between the pneumatic diaphragm pump 12 and the second stop valve 15.

[0027] In this embodiment, considering the navigation route of the ship, a discharge valve 18 is provided on the water supply pipe 7. The discharge valve 18 is located behind the second stop valve 15 so that the dust suppression system can discharge residual water when not in operation to protect the equipment and pipelines.

[0028] In order to facilitate cleaning of the circulating water tank 3 , in this embodiment, the circulating water tank 3 is open, and drain plugs 19 are provided at the bottom ends of the dust water chamber 5 and the clean water chamber 6 of the circulating water tank 3 .

[0029] An automatic water replenishing device is provided at the upper part of the clean water chamber 6. The automatic water replenishing device includes an automatic water replenishing valve 20, a water replenishing pipe and a third stop valve 21. By setting up the automatic water replenishing device, water can be automatically replenished when the internal water level of the clean water chamber 6 is insufficient, thereby ensuring the stability of the dust reduction system.

[0030] This embodiment employs a filter pad 2 behind the air inlet louvers 1 to provide secondary filtration, further ensuring that engine room ventilation meets the requirements of crew and equipment. This recyclable dust reduction system effectively reduces engine room ventilation contamination from ore dust during loading and unloading, mitigates crew health risks associated with poor air quality, ensures stable operation of engine room equipment, increases diesel engine fuel system efficiency, and significantly reduces maintenance costs for the air inlet louvers 1.

[0031] Example 2: A method for using the recyclable dust reduction system for cabin ventilation described in Example 1, as follows: Figure 1 As shown, the water mist nozzle 8 is installed at the end of the branch pipe of the water supply pipe 7, and the pressure provided by the pneumatic diaphragm pump 12 is used to atomize and spray the clean water in the clean water chamber 6 through the water supply pipe 7 and the water mist nozzle 8, so that the mineral sand dust and the clean water are merged to form dust water; the dust water enters the dust water chamber 5 in the circulating water cabinet 3 through the water baffle 9, the water receiving trough 10 and the recovery water pipe 11, and the dust water is precipitated and stratified in the dust water chamber 5. The upper part of the clean water after precipitation and stratification enters the clean water chamber 6 through the filter screen 4. Finally, the clean water is recycled through the first stop valve 14, the Y-type filter 13, the pneumatic diaphragm pump 12, and the second stop valve 15 in sequence.

[0032] When dust in the circulating water tank 3 needs to be cleaned, the drain plug 19 is opened. When the water level in the clean water chamber 6 is too low, the automatic water replenishment device automatically replenishes the clean water chamber 6, thereby ensuring the stability of the dust suppression system. When the dust suppression system is not in operation, the residual water is discharged through the drain valve 18 to protect the equipment and pipelines.

[0033] The present invention utilizes water mist to concentrate airborne mineral sand dust in the circulating water tank 3, resulting in a clean and environmentally friendly dust reduction process. After multiple filtration steps, the clean water that meets the requirements is then atomized for dust reduction, resulting in energy efficiency and high efficiency. The circulating water tank 3 of the present invention is open, facilitating the removal of settled dust. The automatic water replenishment device makes subsequent maintenance by crew members simpler and more convenient, improving the safety factor of the equipment.

[0034] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A recyclable dust reduction system for cabin ventilation, wherein the cabin ventilation is provided with an air inlet louver and an air inlet fan, the air inlet fan is located at the rear side of the air inlet louver, and a filter cotton is provided between the air inlet louver and the air inlet fan, characterized in that: The recyclable dust reduction system includes a circulating water tank, in which a dust water chamber and a clean water chamber are separated by a filter screen. The lower end of the clean water chamber is connected to a water supply pipe, and the end of the water supply pipe is connected to a water mist nozzle. The water mist nozzle is arranged on the front side of the air inlet louver, and a water baffle is arranged around the air inlet louver. A water receiving trough is provided below the air inlet louver, and the water receiving trough is connected to the dust water chamber of the circulating water tank through a recovery water pipe.

2. The recyclable dust reduction system for cabin ventilation according to claim 1, characterized in that: The water supply pipe is connected to a pneumatic diaphragm pump, and a Y-type filter is provided on the water supply pipe located in front of the pneumatic diaphragm pump.

3. The recyclable dust reduction system for cabin ventilation according to claim 2, characterized in that: The water supply pipe is also provided with a first stop valve, a second stop valve, a discharge valve, a first pressure gauge and a second pressure gauge. The first stop valve is located in front of the Y-type filter, the second stop valve is located behind the pneumatic diaphragm pump, the discharge valve is located behind the second stop valve, the first pressure gauge is located between the Y-type filter and the pneumatic diaphragm pump, and the second pressure gauge is located between the pneumatic diaphragm pump and the second stop valve.

4. The recyclable dust reduction system for cabin ventilation according to claim 1, characterized in that: The end of the water supply pipe is divided into a plurality of branch pipes, and the end of each branch pipe is connected to a water mist nozzle.

5. The recyclable dust reduction system for cabin ventilation according to claim 3, characterized in that: The circulating water tank is open, and the bottom ends of the dust water chamber and the clean water chamber of the circulating water tank are both provided with discharge plugs.

6. The recyclable dust reduction system for cabin ventilation according to claim 1, characterized in that: An automatic water replenishing device is provided on the upper part of the clean water chamber, and the automatic water replenishing device includes an automatic water replenishing valve, a water replenishing pipe and a third stop valve.

7. The method for using the recyclable dust reduction system for cabin ventilation according to any one of claims 1 to 6, characterized in that: The clean water in the clean water cavity is atomized and sprayed through the water supply pipe and the water mist nozzle, so that the mineral sand dust and the clean water are combined to form dust water. The dust water enters the dust water cavity in the circulating water cabinet through the water baffle, the water receiving trough and the recovery water pipe. The dust water is precipitated and stratified in the dust water cavity. The upper part of the clean water after sedimentation and stratification enters the clean water cavity through the filter screen. Finally, the clean water is recycled through the water supply pipe.

Images