Ventilation system for cruise ship sewage tank

Abstract

The embodiment of the invention provides a ventilation system for a cruise ship sewage tank, comprising: an air pipe, the lower end of which is communicated with each sewage tank through branch pipelines respectively communicated with a plurality of sewage tanks; the exhaust fan exhaust system is arranged on the air pipe and is used for extracting gas in the air pipe, so that the gas in each sewage cabin is exhausted through the air pipe; the gas-water separator is arranged at a gooseneck bent port at the upper end part of the air pipe; the exhaust fan exhaust system comprises two exhaust fans which are arranged in parallel, blind plate flanges are arranged on an air inlet end pipeline and an air outlet end pipeline of each exhaust fan, and when any one of the two exhaust fans is in a working state, the blind plate flanges at the two ends of the other exhaust fan in a non-working state are in a blind disconnection state. The ventilation system of the sewage tank is constructed by adopting the exhaust fan and the gas-water separator, so that the problems that the ventilation of the sewage tank is not smooth, the ventilation port is easy to block and condensed water is formed can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation of sewage tanks of ships, in particular to a ventilation system of sewage tanks of cruise ships. Background Art

[0002] The sewage tanks of existing cruise ships are mostly arranged at the bottom of the hull. In the existing technical solution, the sewage tank air pipe extends through multiple decks to the top of the chimney. The top of the air pipe is a gooseneck elbow, which can not only achieve ventilation in the cabin, but also prevent rainwater from flowing back into the sewage tank through the air pipe.

[0003] Disadvantages of existing technology:

[0004] 1. The air pipe is longer, and the ventilation back pressure is greater than that of ordinary air pipes, so the gas in the cabin cannot be discharged smoothly outside the cabin;

[0005] 2. There are many impurities in the sewage tank ventilation, and the gooseneck port is equipped with a filter, which is easy to cause blockage;

[0006] 3. The ventilation temperature and humidity of the sewage tank are relatively high, and condensation is easily formed at the gooseneck bend port, which pollutes the deck surface. Summary of the invention

[0007] In view of the above-mentioned problems existing in the prior art, an embodiment of the present invention provides a cruise ship sewage tank ventilation system, which can solve the problems of poor ventilation in the sewage tank, easy blockage of the ventilation port, and formation of condensation water by adopting an exhaust fan and an air-water separator to construct the sewage tank ventilation system.

[0008] An embodiment of the present invention provides a cruise ship sewage tank ventilation system, comprising:

[0009] an air pipe, the lower end of which is connected to each sewage tank through branch pipes respectively connected to the plurality of sewage tanks;

[0010] An exhaust fan exhaust system, which is arranged on the air pipe and is used to extract the gas in the air pipe so that the gas in each sewage tank is discharged through the air pipe;

[0011] An air-water separator, which is arranged at the gooseneck bend port at the upper end of the air pipe;

[0012] Among them, the exhaust fan exhaust system includes two exhaust fans arranged in parallel, and each exhaust fan is provided with a blind flange on the air inlet end pipeline and the air outlet end pipeline. When any one of the two exhaust fans is in a working state, the blind flanges at both ends of the other exhaust fan in a non-working state are in a blind state.

[0013] In some embodiments of the present invention, the cruise ship sewage tank ventilation system is applied to a cruise ship with a multi-layer deck structure, and the exhaust fan exhaust system is arranged in the space below the topmost deck of the cruise ship.

[0014] In some embodiments of the present invention, the two exhaust fans are respectively provided with a discharge pipe, the discharge pipe is connected to the air pipe, and the discharge pipe is used to discharge the condensate generated by the corresponding exhaust fan to the sewage tank through the air pipe.

[0015] In some embodiments of the present invention, a collector for receiving the water separated by the gas-water separator is provided at the front end of the gooseneck port, and a return pipe for connecting with the air pipe is provided at the bottom end of the collector, and the water separated by the gas-water separator is returned to the sewage tank via the return pipe and the air pipe.

[0016] In some embodiments of the present invention, the gas-water separator includes a ventilation module, a filtration module and a discharge module arranged in sequence from top to bottom, wherein:

[0017] The ventilation module includes a ventilation filter for discharging the dirty gas in the sewage tank to the outside of the gas-water separator;

[0018] The filter module is provided with a filter screen for filtering impurities in the reflux liquid;

[0019] The discharge module comprises a collector and a return pipe, and the collector is funnel-shaped.

[0020] In some embodiments of the present invention, the ventilation module and the filter module, as well as the filter module and the discharge module are fixedly connected via connection flanges.

[0021] In some embodiments of the present invention, an inwardly recessed placement portion for accommodating a breathable filter is formed on the air pipe corresponding to the breathable module, and the breathable filter installed on the placement portion is a concave breathable filter, so that condensed water generated on the breathable filter can directly fall into the collector.

[0022] In some embodiments of the present invention, the filter screen in the filter module is arranged along the cross-sectional direction of the air pipe where it is located.

[0023] Compared with the prior art, the cruise ship sewage tank ventilation system provided by the embodiment of the present invention has the following beneficial effects: it adopts a one-in-one-standby parallel exhaust fan to ensure smooth ventilation of the sewage tank; at the same time, by adopting an air-water separator, condensate and dirty air are separated; further, it also adopts an inner concave filter screen to prevent condensate from dripping along the pipe wall; in addition, by adopting a filter module, the filter screen can be quickly replaced or flushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of a cruise ship sewage tank ventilation system provided by an embodiment of the present invention;

[0025] Figure 2 An installation diagram of a gas-water separator in a cruise ship sewage tank ventilation system provided by an embodiment of the present invention;

[0026] Figure 3 A structural diagram of a gas-water separator in a cruise ship sewage tank ventilation system provided by an embodiment of the present invention;

[0027] Figure 4 A front view of a ventilation module in a cruise ship sewage tank ventilation system provided by an embodiment of the present invention;

[0028] Figure 5 for Figure 4 Cross-sectional view after removing the air filter in the middle AA direction;

[0029] Figure 6 A top view of a ventilation module in a cruise ship sewage tank ventilation system provided by an embodiment of the present invention;

[0030] Figure 7 A front view of a filter module in a cruise ship sewage tank ventilation system provided by an embodiment of the present invention;

[0031] Figure 8 A top view of a filter module in a cruise ship sewage tank ventilation system provided in an embodiment of the present invention.

[0032] Reference numerals

[0033] 1. Air pipe; 2. Branch pipeline; 3. Sewage tank; 4. Exhaust fan exhaust system; 5. Air-water separator; 6. Gooseneck bend; 7. Exhaust fan; 8. Blind flange; 9. Discharge pipe; 10. Collector; 11. Return pipe; 12. Breathable module; 13. Filter module; 14. Discharge module; 15. Breathable filter; 16. Filter filter; 17. Concave placement part. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0036] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0037] It should also be understood that, although the present application has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present application that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0038] The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

[0039] Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present application, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to determine the true intent based on the user's historical operations and to avoid unnecessary or redundant details that make the present application unclear. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but are merely used as the basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any suitable detailed structure.

[0040] This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present application.

[0041] The embodiment of the present invention provides a cruise ship sewage tank ventilation system, such as Figures 1 to 8 As shown, the cruise ship sewage tank ventilation system includes:

[0042] An air pipe 1, the lower end of which is connected to each sewage tank 3 through a branch pipe 2 which is connected to each sewage tank 3;

[0043] An exhaust fan exhaust system 4, which is arranged on the air pipe 1 and is used to extract the gas in the air pipe 1 so that the gas in each sewage tank 3 is discharged through the air pipe 1;

[0044] An air-water separator 5, which is arranged at the gooseneck bend 6 end of the upper end of the air pipe 1;

[0045] Among them, the exhaust fan exhaust system 4 includes two exhaust fans 7 arranged in parallel, and each exhaust fan 7 is provided with a blind flange 8 on the air inlet end pipeline and the air outlet end pipeline. When any one of the two exhaust fans 7 is in a working state, the blind flanges 8 at both ends of the other exhaust fan 7 in a non-working state are in a blind state.

[0046] Specifically, see Figure 1As shown, a plurality of sewage tanks 3 are connected to an air pipe 1 through a plurality of branch pipes 2. An exhaust system is provided on the upper part of the air pipe 1 by arranging an exhaust fan 7, and a parallel exhaust fan 7 is used to draw air, so that the dirty air can be easily discharged from the sewage tank 3. At the same time, by adopting the parallel exhaust fan 7, a one-in-use and one-in-standby configuration scheme can be adopted, and by providing a blind flange 8 on the air inlet and air outlet pipes of each exhaust fan 7, when an exhaust fan 7 is damaged or repaired, the blind flange 8 can be used to blindly cut off the air inlet and air outlet of the damaged exhaust fan 7, and at the same time, the air ducts of the air inlet and air outlet of the standby exhaust fan 7 are connected, thereby ensuring smooth ventilation of the sewage tank 3.

[0047] At the same time, in the present embodiment, the ventilation system of the cruise ship sewage tank 3 is applied to a cruise ship with a multi-layer deck structure, and the exhaust fan exhaust system 4 is arranged in the space below the top deck of the cruise ship. Of course, it can also be arranged in the lower space of the lower deck of the top deck or in the lower space of other deck layers, as long as it can meet the actual use requirements.

[0048] Furthermore, in the present embodiment, the two exhaust fans 7 are respectively provided with a discharge pipe 9 , and the discharge pipe 9 is connected to the air pipe 1 , and the discharge pipe 9 is used to discharge the condensate generated by the corresponding exhaust fan 7 to the sewage tank 3 through the air pipe 1 .

[0049] like Figure 2 As shown, in this embodiment, the front end of the gooseneck bend 6 port is provided with a collector 10 for receiving the water separated by the gas-water separator 5, and the bottom end of the collector 10 is provided with a reflux pipe 11 for communicating with the air pipe 1. The water separated by the gas-water separator 5 is refluxed to the sewage tank 3 through the reflux pipe 11 and the air pipe 1, so that the condensed water is refluxed to the sewage tank 3 while ensuring ventilation.

[0050] like Figure 3 As shown, in some embodiments of the present invention, the upper end of the gas-water separator 5 is fixedly connected to the gooseneck bend 6 port through a flange, and the lower end of the gas-water separator 5 is connected and fixed to the pipe body of the air pipe 1 through a flange. The gas-water separator 5 includes a ventilation module 12, a filter module 13 and a discharge module 14 arranged in sequence from top to bottom, wherein:

[0051] The ventilation module 12 includes a ventilation filter 15 for discharging the dirty gas from the sewage tank 3 to the outside of the gas-water separator 5, and at the same time can prevent insects from entering the pipe;

[0052] The filter module 13 is provided with a filter screen 16 for filtering impurities in the reflux liquid;

[0053] The discharge module 14 includes a collector 10 and a return pipe 11 . The collector 10 is funnel-shaped so as to discharge the condensate back to the sewage tank 3 .

[0054] Specifically, the ventilation module 12 and the filter module 13, as well as the filter module 13 and the discharge module 14 are fixedly connected via connecting flanges. When cleaning or replacing the filter screen 16, only the connecting flanges between the filter module 13 and the ventilation module 12 and the discharge module 14 can be removed, without the need to disassemble the air-water separator 5 as a whole, thereby achieving quick disassembly of the filter module 13.

[0055] In some embodiments of the present invention, Figures 4 to 6 As shown, the air pipe 1 corresponding to the ventilation module 12 is formed with an inwardly recessed placement portion 17 for accommodating a breathable filter 15. The breathable filter 15 installed on the placement portion adopts a concave breathable filter 15, so that the condensed water generated on the breathable filter 15 can directly fall into the collector 10, and the condensed water is prevented from dripping along the wall of the air pipe 1 to the deck. After being installed in the concave placement portion 17, the breathable filter 15 is arranged in an arc shape, and the arc angle corresponding to the arc-shaped breathable filter 15 in the cross-sectional direction of the air pipe 1 is not greater than 180 degrees.

[0056] In this embodiment, if Figure 7 and Figure 8 As shown, the filter screen 16 in the filter module 13 is arranged along the cross-sectional direction of the air pipe 1 where it is located, and the filter screen 16 is installed in the pipe for easy flushing or replacement of the filter screen.

[0057] It can be known from the above technical scheme that the ventilation system of the cruise ship sewage tank 3 provided in the above embodiment of the present invention adopts a one-in-one-standby parallel exhaust fan 7 to ensure smooth ventilation of the sewage tank 3; at the same time, by adopting an air-water separator 5, condensate and dirty air are separated; further, it also adopts an inner concave filter screen to prevent condensate from dripping along the pipe wall; in addition, by adopting a filter module 13, the filter screen 16 can be quickly replaced or flushed.

[0058] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A cruise ship sewage tank ventilation system, characterized in that: include: an air pipe, the lower end of which is connected to each sewage tank through branch pipes respectively connected to the plurality of sewage tanks; An exhaust fan exhaust system, which is arranged on the air pipe and is used to extract the gas in the air pipe so that the gas in each sewage tank is discharged through the air pipe; An air-water separator, which is arranged at the gooseneck bend port at the upper end of the air pipe; Among them, the exhaust fan exhaust system includes two exhaust fans arranged in parallel, and each exhaust fan is provided with a blind flange on the air inlet end pipeline and the air outlet end pipeline. When any one of the two exhaust fans is in a working state, the blind flanges at both ends of the other exhaust fan in a non-working state are in a blind state.

2. The cruise ship sewage tank ventilation system according to claim 1, characterized in that: The cruise ship sewage tank ventilation system is applied to a cruise ship with a multi-layer deck structure, and the exhaust fan exhaust system is arranged in the space below the topmost deck of the cruise ship.

3. The cruise ship sewage tank ventilation system according to claim 1, characterized in that: The two exhaust fans are respectively provided with a discharge pipe, which is connected to the air pipe. The discharge pipe is used to discharge the condensate generated by the corresponding exhaust fan to the sewage tank through the air pipe.

4. The cruise ship sewage tank ventilation system according to claim 1, characterized in that: A collector for receiving the water separated by the gas-water separator is provided at the front end of the gooseneck port, and a reflux pipe for communicating with the air pipe is provided at the bottom end of the collector. The water separated by the gas-water separator flows back to the sewage tank via the reflux pipe and the air pipe.

5. The cruise ship sewage tank ventilation system according to claim 1, characterized in that: The gas-water separator includes a ventilation module, a filtering module and a discharge module arranged in sequence from top to bottom, wherein: The ventilation module includes a ventilation filter for discharging the dirty gas in the sewage tank to the outside of the gas-water separator; The filter module is provided with a filter screen for filtering impurities in the reflux liquid; The discharge module comprises a collector and a return pipe, and the collector is funnel-shaped.

6. The cruise ship sewage tank ventilation system according to claim 5, characterized in that: The ventilation module and the filter module as well as the filter module and the discharge module are fixedly connected via connecting flanges.

7. The cruise ship sewage tank ventilation system according to claim 5, characterized in that: The air pipe corresponding to the ventilation module is formed with an inwardly recessed placement portion for accommodating a ventilation filter. The ventilation filter installed on the placement portion is an inwardly recessed ventilation filter so that condensed water generated on the ventilation filter can directly fall into the collector.

8. The cruise ship sewage tank ventilation system according to claim 5, characterized in that: The filter screen in the filter module is arranged along the cross-sectional direction of the air pipe where it is located.

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