Multilayer cabin sewage well discharge system

Abstract

The invention provides a multi-layer cabin sewage well drainage system which comprises an upper-layer sewage well, a bottom-layer sewage well, a drainage pipeline, a suction pipeline, a control valve, a suction device and a drainage pipeline, the bottom of the upper-layer sewage well is higher than the top of the bottom-layer sewage well, the inlet end of the drainage pipeline is communicated with the upper-layer sewage well, and the outlet end of the drainage pipeline is communicated with the bottom-layer sewage well. The outlet end of the discharge pipeline is communicated with a bottom-layer sewage well, the inlet end of the suction pipeline is communicated with the bottom-layer sewage well, the outlet end of the suction pipeline is communicated with a suction inlet of the suction device, the control valve is arranged on the suction pipeline and between the bottom-layer sewage well and the suction device, and the discharge pipeline is communicated to a discharge outlet of the suction device. By means of the system, normal sewage discharge of the multiple layers of cabins can be achieved, the arrangement of the discharge system is simplified and optimized, and pipeline redundancy is reduced. In the ship building process, the manufacturing and mounting work of pipelines of a discharge system is reduced, and centralized discharge and management of sewage in multiple layers of cabins are effectively achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of shipbuilding, and particularly relates to a sewage well discharge system for multi-layer cabins. Background Art

[0002] There are many cabins arranged on a ship. During daily operation, sewage and sludge are generated in each cabin. To keep the cabin floor dry, clean and safe for walking, each cabin needs to have a corresponding sewage well. However, the space on the ship is compact and the space for arranging sewage pipes is limited. A relatively simple discharge system is likely to cause inconvenience in sewage discharge or incomplete discharge, increasing the frequency and difficulty of the crew's daily cleaning of the sewage well sludge and sewage, and also increasing the probability of blockage. Setting up a relatively complex discharge system occupies a large amount of space, resulting in very complex and redundant pipeline arrangements, not only increasing the installation and maintenance costs, but also possibly affecting the overall performance and safety of the ship. Therefore, the sewage and sludge discharge system for ship cabins faces challenges in balancing space compactness, discharge efficiency and pipeline arrangement complexity. Summary of the Invention

[0003] An embodiment of the present invention provides a sewage well discharge system for multi-layer cabins, including an upper sewage well, a lower sewage well, a drain pipe, a suction pipe, a control valve, a suction device and a discharge pipe. Among them, the bottom of the upper sewage well is higher than the top of the lower sewage well. The inlet end of the drain pipe is connected to the upper sewage well, and the outlet end of the drain pipe is connected to the lower sewage well. The inlet end of the suction pipe is connected to the lower sewage well, and the outlet end of the suction pipe is connected to the suction inlet of the suction device. The control valve is arranged on the suction pipe and is located between the lower sewage well and the suction device. The discharge pipe is connected to the discharge outlet of the suction device.

[0004] Further, a filtering device is arranged in the upper sewage well. The filtering device divides the upper sewage well into an upper filtered front part and an upper filtered rear part, and the upper filtered front part is located above the upper filtered rear part.

[0005] Further, a filtering device is arranged in the lower sewage well. The filtering device divides the lower sewage well into a lower filtered front part and a lower filtered rear part, and the lower filtered front part is located above the lower filtered rear part.

[0006] Further, the filtering device includes a support part, a filtering part and a lifting part. Among them, the support part is arranged below the filtering part for supporting the filtering part, and the lifting part is arranged above the filtering part and extends upward for lifting the filtering part.

[0007] Further, the inlet end of the drain pipe is arranged in the upper filtered rear part of the upper sewage well, and the outlet end of the drain pipe is arranged in the lower filtered front part of the lower sewage well.

[0008] Further, a first filter screen is arranged at the inlet end of the drain pipe.

[0009] Furthermore, the inlet end of the suction pipeline communicates with the rear part of the bottom filter of the bottom sewage well.

[0010] Furthermore, a second filter screen is provided at the inlet end of the suction pipeline.

[0011] Furthermore, a collecting pipeline is included between the control valve and the suction device. One end of the collecting pipeline communicates with the suction inlet of the suction device, and the other end communicates with at least two control valves.

[0012] Furthermore, liquid level switches are provided both in the upper sewage well and in the bottom sewage well.

[0013] The present invention utilizes a new multi-layer cabin sewage well discharge system, which can realize the normal discharge of multi-layer cabin sewage, simplify and optimize the layout of the discharge system, and reduce pipeline redundancy. During the shipbuilding process, the production and installation work of the discharge system pipelines are reduced. During the ship operation process, the separation of sewage and sludge is realized, the probability of control valve failure is reduced, the blockage of the sewage well and the frequency of liquid level alarms are reduced, the number of times, difficulty and workload of crew's daily cleaning of the sewage well are reduced, and the centralized discharge and management of multi-layer cabin sewage are effectively realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram showing a multi-layer cabin sewage well discharge system according to an embodiment of the present invention;

[0015] Figure 2 A schematic diagram showing a filtering device according to an embodiment of the present invention.

[0016] In the figure, 1 - upper sewage well, 2 - bottom sewage well, 3 - drain pipeline, 4 - suction pipeline, 5 - control valve, 6 - suction device, 7 - discharge pipeline, 8 - collecting pipeline, 9 - liquid level switch, 100 - filtering device, 110 - support part, 120 - filtering part, 130 - lifting part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0018] In the description of the present application, unless otherwise clearly specified or limited, the terms "connected", "connected to", "communicated with", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a liquid flow-through; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In the present application, unless otherwise clearly specified or limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0020] As Figure 1 shown, Figure 1 It is a schematic diagram showing a multi-layer cabin sewage sump discharge system according to an embodiment of the present invention. It includes an upper sewage sump 1, a bottom sewage sump 2, a drain pipe 3, a suction pipe 4, a control valve 5, a suction device 6, and a discharge pipe 7. Among them, the bottom of the upper sewage sump 1 is higher than the top of the bottom sewage sump 2. The inlet end of the drain pipe 3 is communicated with the upper sewage sump 1, and the outlet end of the drain pipe 3 is communicated with the bottom sewage sump 2. The inlet end of the suction pipe 4 is communicated with the bottom sewage sump 2, and the outlet end of the suction pipe 4 is communicated with the suction inlet of the suction device 6. The control valve 5 is arranged on the suction pipe 4 and is arranged between the bottom sewage sump 1 and the suction device 6. The discharge pipe 7 is communicated to the discharge outlet of the suction device 6.

[0021] Among them, the upper sewage well shown in the figure is located above the lower sewage well. For example, in a ship's cabin, there can be more than two layers of cabins, including the first layer cabin, the second layer cabin, the third layer cabin, etc. The "lower layer" mentioned in the text refers to the lower cabin of the two layers. For the first layer cabin and the second layer cabin, it can be the first layer cabin. For the second layer cabin and the third layer cabin, it can also be the second layer cabin. The "upper layer" mentioned in the text refers to the upper cabin of the two layers. For the first layer cabin and the second layer cabin, it can be the second layer cabin. For the second layer cabin and the third layer cabin, it can also be the third layer cabin. That is, the "lower layer" and the "upper layer" are relative concepts, and the "lower layer" does not only refer to the first layer. What the present invention intends to express is to collect the sewage wells of two layers, three layers or more layers to the lower layer.

[0022] In this embodiment, the upper sewage well is used to collect the sewage of this layer, and the lower sewage well is used to collect the sewage of the lower layer. The upper sewage is transmitted into the lower sewage well through the drain pipe 3, that is, the upper layer does not need to be provided with a suction pipe to discharge the sewage in the sewage well. Therefore, at least two layers only need to lay one suction pipe to complete the sewage discharge of the two layers. At the same time, only one discharge pipe 7, one control valve 5, and one suction device 6 need to be laid. A large amount of space for laying pipes is saved, the discharge system is simplified and optimized, and the pipe redundancy is reduced.

[0023] In a further embodiment, a first filter screen 10 is provided at the inlet end of the drain pipe 3. The purpose of setting the first filter screen 10 is to separate the sewage and sludge in the upper sewage well, avoid blocking the drain pipe, and at the same time avoid creating more sludge in the lower sewage well. The staff in the upper cabin only need to clean the first filter screen regularly to reduce the blockage of the drain pipe 3.

[0024] In a further embodiment, a filtering device 100 is provided in the upper sewage well 1. The filtering device 100 divides the upper sewage well into an upper filtered front part and an upper filtered rear part, and the upper filtered front part is located above the upper filtered rear part. The filtering device 100 is used to preliminarily filter the water in the sewage well, separate the sewage and sludge. The sewage flows into the upper filtered rear part through the filtering device 100, and the sludge is left in the upper filtered front part. When the sludge accumulates to a predetermined position, the crew only needs to clean the sludge in the upper filtered front part. The crew can directly lift the filtering device to quickly clean it without entering the deeper upper filtered rear part of the sewage well to clean.

[0025] Similarly, a filtering device 100 is also provided in the bottom sewage well 2. The filtering device 100 divides the bottom sewage well into a front bottom filter part and a rear bottom filter part, and the front bottom filter part is located above the rear bottom filter part. The filtering device 100 is used to preliminarily filter the water in the sewage well, separate the sewage and the sludge. The sewage flows through the filtering device 100 into the rear bottom filter part, while the sludge is retained in the front bottom filter part. When the sludge accumulates to a predetermined position, the crew only needs to clean the sludge in the front bottom filter part. The crew can directly lift the filtering device to quickly clean it without entering the deeper rear bottom filter part of the sewage well for cleaning.

[0026] In a further embodiment, a liquid level switch 9 is provided in both the upper sewage well and the bottom sewage well. Among them, the liquid level switch 9 is preferably arranged in the front filter part of the sewage well. When the sludge accumulates to a certain extent, the liquid level switch alarms to remind the crew to clean. The liquid level switch is used to monitor the liquid level of the sewage well. When the liquid level switch in the upper sewage well of the cabin alarms, it prompts the crew that the filtering device in this sewage well may have been filled with sludge and needs to clean the sludge; when the liquid level switch in the bottom sewage well alarms, it prompts the crew that the sewage in this sewage well has been filled up and the suction device needs to be started to suck the sewage. When the suction device is started to suck the sewage and the liquid level switch still alarms continuously, it prompts the crew that the filtering device in this sewage well has been filled with sludge and needs to clean the sludge.

[0027] The sewage generated in the upper cabin is collected in the upper sewage well. After passing through the filtering device, it is discharged by gravity through the drain pipe and the first filter screen to the upper part of the filtering device in the bottom sewage well and filtered again. When the sewage in the bottom sewage well accumulates to the point where the liquid level switch alarms and the control valve is in the normally open state, the crew can start the suction device to discharge the sewage. When the liquid level switch still alarms continuously after the discharge, the crew then needs to clean the sludge in the bottom sewage well.

[0028] To facilitate the cleaning of the filtering device, another embodiment of the present invention provides a new type of filtering device, as Figure 2 shown, Figure 2 which represents a schematic diagram of a filtering device according to an embodiment of the present invention. The filtering device 100 includes a support part 110, a filtering part 120 and a lifting part 130. Among them, the support part 110 is arranged below the filtering part 120 for supporting the filtering part, and the lifting part 130 is arranged above the filtering part 120 and extends upward for lifting the filtering part.

[0029] Specifically, the filtering part 120 can be a mechanical grille filter screen, which filters out solid particles and sludge in the sewage by means of grille screening and is cleaned regularly. The shape of the filtering surface of the filtering part 120 should be the same as the shape of the sewage well to cover the sewage flow cross-section in the sewage well and prevent the sewage from flowing directly to the bottom of the sewage well without passing through the filtering device, resulting in incomplete filtering.

[0030] Among them, the support part 110 is arranged below the filtering part 120 and is used to support the filtering part 120 in the sewage well. After the support part 110 props up the filtering part 120, the sewage well is roughly divided into upper and lower parts. The part above the filtering part 120 is the pre-filter part, and the part below the filtering part 120 is the post-filter part.

[0031] In a preferred embodiment, the discharge pipeline 3 is connected to the post-filter part of the upper sewage well.

[0032] In an embodiment of the filtering device, the lifting part 130 is arranged to facilitate the crew to lift the filtering device from the sewage well, which is convenient for the crew to clean the filtering device.

[0033] The inlet end of the suction pipeline 4 communicates with the bottom post-filter part of the bottom sewage well. In a preferred embodiment, a second filter screen 11 is arranged at the inlet end of the suction pipeline 4. The purpose of the second filter screen 11 is to separate the sewage and sludge in the bottom sewage well to avoid blocking the suction pipeline. The staff in the bottom cabin only need to clean the second filter screen regularly to reduce the blockage of the suction pipeline 4.

[0034] In another embodiment, the control valve 5 is directly communicated with the suction device 6, that is, in this case, there is only one suction pipeline. In another embodiment, a plurality of suction pipelines 4 are included, and a control valve 5 is arranged on each suction pipeline 4. The control valve 5 only controls this suction pipeline. After the plurality of suction pipelines pass through the control valves, they converge to the converging pipeline 8, and the other end of the converging pipeline 8 is connected to the suction device 6. The plurality of suction pipelines converge to one converging pipeline 8 and share one suction device 6, which can simplify and optimize the discharge system, reduce pipeline redundancy.

[0035] For the clear description of the content of the present invention, the Figure 1 is only a part of the sewage well discharge system in a multi-layer cabin. In actual situations, there can be multiple upper sewage wells on the upper layer and multiple bottom sewage wells on the bottom layer. Each upper sewage well is communicated with the corresponding bottom sewage well through a discharge pipeline and then connected to the converging pipeline. In some cases, there is also a sewage well above the upper layer, and multiple upper sewage wells are all connected to the corresponding bottom sewage wells through discharge pipelines.

[0036] The advantages of the present invention are to simplify and optimize the layout of the discharge system, reduce pipeline redundancy and layout difficulty, reduce the workload and cost of ship construction, realize the separation of sewage and sludge, and reduce the responsibility and difficulty of the crew's daily maintenance and upkeep.

[0037] 1. There is no need to configure independent suction ports, filter screens, pipelines, and control valves for each sewage well, nor is it necessary to add a lot of pipes at the inlet of the suction device, which increases the pipeline layout difficulty.

[0038] 2. The reduced amount of materials reduces the costs of shipbuilding materials and labor.

[0039] 3. Reducing the number of control valves reduces the probability of control valve failures. Increasing the sewage well filter screens realizes the separation of sewage and sludge, reduces the number of blockages at the suction ports and filters, and eases the difficulty of cleaning the sewage well. This reduces the frequency of crew members' daily cleaning of the sewage well during ship operation and the workload, effectively achieving the centralized discharge and management of sewage in multiple cabins.

[0040] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A multi-layer cabin sump discharge system, comprising an upper sump, a bottom sump, a drain pipe, a suction pipe, a control valve, a suction device and a discharge pipe, wherein, The bottom of the upper sewage well is higher than the top of the lower sewage well. The inlet end of the drain pipe is communicated with the upper sewage well, and the outlet end of the drain pipe is communicated with the lower sewage well. The inlet end of the suction pipe is communicated with the lower sewage well, and the outlet end of the suction pipe is communicated with the suction inlet of the suction device. The control valve is arranged on the suction pipe and between the lower sewage well and the suction device. The discharge pipe is communicated with the discharge outlet of the suction device.

2. The multi-layer cabin sewage well discharge system according to claim 1, wherein a filtering device is arranged in the upper sewage well. The filtering device divides the upper sewage well into a front upper filter part and a rear upper filter part, and the front upper filter part is located above the rear upper filter part.

3. The multi-layer cabin sewage well discharge system according to claim 2, wherein the filtering device is arranged in the lower sewage well. The filtering device divides the lower sewage well into a front lower filter part and a rear lower filter part, and the front lower filter part is located above the rear lower filter part.

4. The multi-layer cabin sump discharge system according to claim 2 or 3, wherein the filtering device comprises a support part, a filtering part and a lifting part, and among them, The supporting part is arranged below the filtering part for supporting the filtering part. The lifting part is arranged above the filtering part and extends upward for lifting the filtering part.

5. The multi-layer cabin sewage well discharge system according to claims 2 and 3, wherein the inlet end of the drain pipe is arranged in the rear upper filter part of the upper sewage well, and the outlet end of the drain pipe is arranged in the front lower filter part of the lower sewage well.

6. The multi-layer cabin sewage well discharge system according to claim 1, wherein a first filter screen is arranged at the inlet end of the drain pipe.

7. The multi-layer cabin sewage well discharge system according to claim 3, wherein the inlet end of the suction pipe is communicated with the rear lower filter part of the lower sewage well.

8. The multi-layer cabin sewage well discharge system according to claim 1, wherein a second filter screen is arranged at the inlet end of the suction pipe.

9. The multi-layer cabin sewage well discharge system according to claim 1, further comprising a collecting pipe. The collecting pipe is arranged between the control valve and the suction device. One end of the collecting pipe is communicated with the suction inlet of the suction device, and the other end is communicated with at least two control valves.

10. The multi-layer cabin sewage well discharge system according to claim 1, wherein a liquid level switch is arranged in both the upper sewage well and the lower sewage well.

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