Marine wastewater power generation system

Abstract

The utility model relates to the technical field of ships, in particular to a marine waste water power generation system which comprises a water inlet pipe, a desulfurizing tower, a waste water pipe, a power generation bin and a water drainage pipe which are sequentially communicated from top to bottom, the water inlet pipe is used for supplying seawater to the desulfurizing tower, an impeller generator is arranged at the power generation bin, and an impeller of the impeller generator is embedded in an inner cavity of the power generation bin. First stop valves are arranged between the wastewater pipe and the power generation bin and between the drainage pipe and the power generation bin respectively, the power generation bin comprises an inner bin and an outer bin which are arranged in a nested mode, the inner bin is used for containing the impeller, a seepage gap is formed between the inner bin and the outer bin, and the lower portion of the wastewater pipe communicates with the upper portion of the drainage pipe through a bypass pipe which is provided with a second stop valve. The lower part of the seepage gap is communicated with a bypass pipe through a branch pipe. The waste water of the desulfurizing tower can be conveniently utilized for power generation.

Description

TECHNICAL FIELD

[0001] The utility model relates to ship technology field especially a marine waste water power generation system. BACKGROUND

[0002] The desulfurization tower applied in the current ship mainly takes open system as the main part, and the open system is relatively simple, seawater is directly sucked into the inside of the desulfurization tower, is sprayed through the nozzle, seawater and diesel engine flue gas carry out chemical reaction, flue gas continues to go up and is discharged into the atmosphere, and the seawater that neutralizes sulfide goes down and is discharged into the sea through the fairing installed at the bottom of the ship body. Seawater goes down to be discharged into the sea after completing the chemical reaction with flue gas, and the height of free flow is about 30-40 meters, and the potential energy of the part of waste water can be converted into the input power of the impeller generator.

[0003] In the related technical scheme, the outlet of the desulfurization tower is communicated with the waste water pipe, the power generation bin is arranged on the waste water pipe, the machine shell of the generator is fixed to the outer wall of the power generation bin, the impeller of the generator is embedded in the inner cavity of the power generation bin, the power generation bin can receive the waste water discharged downward from the desulfurization tower, the waste water impacts the impeller to drive the impeller to rotate, and then waste water power generation is realized, and the waste water in the waste water pipe flows through the power generation bin and is discharged into the sea through the drain pipe.

[0004] But in the above technical scheme, the seawater that neutralizes sulfide is corrosive, and the part of seawater will impact the impeller and the side wall of the power generation bin in the power generation bin, and then the power generation bin is easy to be corroded and damaged, and the continuous use of the power generation system is affected. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a kind of marine waste water power generation system, and at least one of the above technical problems can be solved.

[0006] To solve the above technical problems, one or more embodiments of the utility model provide a kind of marine waste water power generation system, including the water inlet pipe, desulfurization tower, waste water pipe, power generation bin and drain pipe that are sequentially communicated from top to bottom, the water inlet pipe is used to supply seawater to the desulfurization tower, power generation bin is provided with impeller generator, the impeller of impeller generator is embedded in the inner cavity of power generation bin, first stop valve is respectively arranged between waste water pipe and power generation bin, between drain pipe and power generation bin.Power generation bin includes nestedly arranged inner bin and outer bin, inner bin is used to accommodate impeller, seepage gap is formed between inner bin and outer bin, the lower part of waste water pipe and the upper part of drain pipe are communicated by bypass pipe, second stop valve is arranged on bypass pipe, the lower part of seepage gap is communicated with bypass pipe by branch pipe.

[0007] The beneficial effects of the above one or more technical solutions are as follows:

[0008] In the scheme, the power generation bin is arranged between the wastewater pipe and the drain pipe, and the first stop valve is arranged at the front and back of the power generation bin, the lower part of the wastewater pipe and the upper part of the drain pipe are communicated through the bypass pipe, and the second stop valve is arranged on the bypass pipe. The setting mode can close the power generation bin and open the bypass pipe when the power generation bin is damaged, and the wastewater in the desulfurization tower is discharged through the bypass pipe, so that the wastewater is prevented from leaking from the power generation bin.

[0009] In the scheme, the power generation bin comprises an inner bin and an outer bin which are arranged in a nested mode, and a seepage gap is formed between the inner bin and the outer bin, and the seepage gap is communicated with the bypass pipe through the branch pipe. In the setting mode, the power generation bin is arranged in a double-layer structure, so that the probability of corrosion and leakage of the power generation bin is reduced, and the seawater seeped from the inner bin can be conveyed to the drain pipe through the branch pipe. That is to say, when the inner bin is damaged in the scheme, the power generation bin still generates power by cooperation of the outer bin and the impeller generator, and maintenance is performed as soon as possible when the ship is docked. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is an overall structure schematic view of the embodiment of the utility model;

[0011] Fig. 2 It is a partial structure schematic view of the power generation bin and the impeller generator in the embodiment of the utility model.

[0012] In the drawing, 1 is an exhaust pipe, 2 is a desulfurization tower, 3 is a first stop valve I, 4 is an impeller generator, 41 is an impeller, 5 is a first stop valve II, 6 is a third stop valve, 7 is a drain pipe, 8 is a branch pipe, 9 is a second stop valve, 10 is a bypass pipe, 11 is a power generation bin, 111 is an outer bin, 112 is an inner bin, 113 is an inner cavity, 12 is a water inlet pipe, and 13 is a wastewater pipe. DETAILED DESCRIPTION

[0013] In order to clearly illustrate the technical features of the scheme, the utility model is described in detail below through specific implementation modes and in combination with the drawings.

[0014] Reference is made to Figs. 1-2The embodiment provides a marine waste water power generation system, which comprises, from top to bottom, a water inlet pipe 12, a desulfurization tower 2, a waste water pipe 13, a power generation bin 11 and a drain pipe 7, the water inlet pipe 12 is used for supplying seawater to the desulfurization tower 2, the power generation bin 11 is provided with an impeller generator 4, an impeller 41 of the impeller generator 4 is embedded in an inner cavity 113 of the power generation bin 11, and first stop valves are arranged between the waste water pipe 13 and the power generation bin 11 and between the drain pipe 7 and the power generation bin 11 respectively. The power generation bin 11 comprises an inner bin 112 and an outer bin 111 which are arranged in a nested mode, the inner bin 112 is used for containing the impeller 41, a seepage gap is formed between the inner bin 112 and the outer bin 111, the lower part of the waste water pipe 13 and the upper part of the drain pipe 7 are communicated through a bypass pipe 10, a second stop valve 9 is arranged on the bypass pipe 10, and the lower part of the seepage gap is communicated with the bypass pipe 10 through a branch pipe 8.

[0015] Specifically, the water inlet pipe 12 is used for supplying seawater to the desulfurization tower 2, and the water inlet pipe 12 at least comprises a horizontal section and a vertical section (not shown in the figure), one end of the horizontal section is connected with the upper side wall of the desulfurization tower 2. A water pump is arranged in the water inlet pipe 12 or in series, and the lift of the water pump is set to be capable of pumping seawater in the sea into the desulfurization tower 2.

[0016] Specifically, the water outlet of the lower end of the desulfurization tower 2 is connected with the upper end of the waste water pipe 13, the lower end of the waste water pipe 13 is communicated with the upper end of the power generation bin 11, and the first stop valve I 3 is arranged between the lower end of the waste water pipe 13 and the upper end of the power generation bin 11. The lower end of the power generation bin 11 is communicated with the upper end of the drain pipe 7, and the first stop valve II 5 is arranged between the lower end of the power generation bin 11 and the upper end of the drain pipe 7. The upper end of the desulfurization tower 2 is also connected with an exhaust pipe 1.

[0017] Specifically, the impeller generator 4 comprises a casing, a rotating shaft and the impeller 41. The casing is mounted on the outer wall surface of the power generation bin 11 through a support and bolts and the like, one end of the rotating shaft is arranged in the inner cavity 113 of the casing, and the other end of the rotating shaft is connected with the impeller 41 in the inner cavity 113 of the power generation bin 11 after penetrating through the side wall of the power generation bin 11.

[0018] Specifically, the water supply amount of the desulfurization tower 2 is about 500-700 cubic meters per hour, which is basically equivalent to the waste water discharge amount of the desulfurization tower 2.

[0019] In the embodiment, the end of the drain pipe 7 is provided with a third stop valve 6. Specifically, the third stop valve 6 is an electric valve.

[0020] In the embodiment, the rotating axis of the impeller 41 is horizontally arranged. Correspondingly, the axis of the rotating shaft is also horizontally arranged.

[0021] In the embodiment, the vertical height H1 between the bottom of the desulfurization tower 2 and the end of the drain pipe 7 is 27-29m. The H1 can be 27m or 29m, preferably, the H1 is 28m.

[0022] In the embodiment, the vertical height H2 between the bottom of the desulfurization tower 2 and the rotating shaft of the impeller 41 is 21.5-23.5m. The H2 can be 21.5m or 23.5m, preferably, the H2 is 22.5m.

[0023] In the embodiment, the first and / or second stop valve 9 is an electric valve.

[0024] In the embodiment, the cross-sectional area of the power generation chamber 11 is larger than that of the wastewater pipe 13 and the drain pipe 7. This arrangement facilitates the installation of the impeller 41 in the power generation chamber 11 and avoids the small cross-sectional area of the power generation chamber 11 hindering the rotation of the impeller 41 in the power generation machine 4.

[0025] Specifically, the power generation chamber 11 has a cylindrical inner cavity 113, and the inner cavity 113 of the power generation chamber 11 has a central axis coaxial with the rotating shaft and the impeller 41.

[0026] The branch pipe is provided with a flow meter, and the flow meter is in communication with an alarm device.

[0027] Working principle: when the device is used, the wastewater discharged from the desulfurization tower 2 flows downward into the wastewater pipe 13 and the power generation chamber 11. In the process of impacting the impeller 41 in the power generation chamber 11, the potential energy of the wastewater is converted into mechanical energy of the impeller 41, and finally converted into electrical energy of the power generation machine 4.

[0028] When the inner chamber 112 of the power generation chamber 11 is damaged, part of the wastewater leaks into the seepage gap and is transported to the drain pipe 7 through the branch pipe 8 and the bypass pipe 10; the other part of the wastewater is still sent to the drain pipe 7 through the lower port of the power generation chamber 11.

[0029] When the inner and outer chambers 111 of the power generation chamber 11 are simultaneously corroded and damaged, or the power generator needs to be maintained or stopped: close the two first stop valves and open the second stop valve 9, so that the wastewater no longer passes through the power generation chamber 11, and the wastewater is directly sent to the drain pipe 7 through the bypass pipe 10.

[0030] The specific embodiments described above cannot be regarded as a limitation on the protection scope of the utility model, and any alternative improvement or change made by the person skilled in the art to the embodiments of the utility model falls within the protection scope of the utility model.

[0031] The parts not described in the utility model are the known technology of the person skilled in the art.

Claims

1. A marine waste water power generation system, comprising, from top to bottom, a water inlet pipe, a desulfurization tower, a waste water pipe, a power generation bin and a water outlet pipe, wherein a turbine generator is arranged at the power generation bin, the turbine of the turbine generator is embedded in the inner cavity of the power generation bin, and a first stop valve is arranged between the waste water pipe and the power generation bin and between the water outlet pipe and the power generation bin, characterized in that the power generation bin comprises an inner bin and an outer bin which are nested, the inner bin is used for accommodating the turbine, a seepage gap is formed between the inner bin and the outer bin, the lower part of the waste water pipe and the upper part of the water outlet pipe are communicated through a bypass pipe, a second stop valve is arranged on the bypass pipe, and the lower part of the seepage gap is communicated with the bypass pipe through a branch pipe. The water inlet pipe has a horizontal section, and the water inlet pipe is communicated with the desulfurization tower through the horizontal section.

2. The marine waste water power generation system of claim 1, wherein, The end of the water outlet pipe is provided with a third stop valve.

3. The marine waste water power generation system of claim 1, wherein, The rotation axis of the turbine is horizontally arranged.

4. The marine waste water power generation system of claim 1, wherein, The vertical height between the bottom end of the desulfurization tower and the end of the water outlet pipe is 27m-29m, and the vertical height between the bottom end of the desulfurization tower and the rotation axis of the turbine is 21.5m-23.5m.

5. The marine waste water power generation system of claim 1, wherein, The first stop valve and / or the second stop valve is an electric valve.

6. The marine waste water power generation system of claim 1, wherein, The cross-sectional area of the power generation bin is greater than that of the waste water pipe and the water outlet pipe respectively.

7. The marine waste water power generation system of claim 1, wherein, A flow meter is arranged in the branch pipe, and the flow meter is communicated with an alarm device.

8. The marine waste water power generation system of claim 1, wherein, ​

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