CN113772013A

CN113772013A - A discharge system and boats and ships for boats and ships

Info

Publication number: CN113772013A
Application number: CN202111127140.1A
Authority: CN
Inventors: 陶富平; 刘俊红; 王兆强; 吴斌; 褚炜; 邵磊; 张守志; 樊旭洋
Original assignee: Shanghai Waigaoqiao Shipbuilding Co Ltd
Current assignee: Shanghai Waigaoqiao Shipbuilding Co Ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2021-12-10

Abstract

The invention discloses a discharge system for a ship and the ship, wherein the ship comprises a plurality of cabins and a stem apex, the cabins are positioned above the stem apex, and the discharge system comprises: the bilge well of each cabin is communicated with the bow tip cabin through the first sewage discharge pipe; the deck plane valves are installed in the sewage wells of the cabins and used for opening or closing the first sewage discharge pipe; the second blow-off pipe is used for communicating the fore peak cabin to the outside; and the jet pump is arranged on the second drainage pipe and pumps the sewage of the stem tip cabin to the outside through the second drainage pipe. The discharge system can open the deck plane valve and discharge sewage in the sewage wells of the cabins to the stem apex cabin through the first sewage discharge pipe, and the cabins are arranged above the stem apex cabin, so that the sewage is automatically discharged to the stem apex cabin by means of gravity without additional energy consumption; the sewage in the fore peak cabin is pumped outside through the same water jet pump, so that the number of the jet pumps is reduced.

Description

A discharge system and boats and ships for boats and ships

Technical Field

The invention relates to an exhaust system for a ship and the ship.

Background

The cabins in certain specific areas of the ship need to be provided with sewage wells, and the sewage wells are arranged at the bottom of the cabins and used for collecting sewage in the cabins. Due to the watertight separation requirement between the compartments, direct communication through the piping is not possible. The current discharge method is to pump the sewage in each chamber to a drainage main pipe by a jet pump for discharge. Because the number of cabins on the ship is large, the workload is large if sewage is discharged one by one; if the discharge is performed simultaneously, a complicated piping is required and a large number of jet pumps are required, resulting in an increase in cost.

Disclosure of Invention

The invention aims to overcome the defect that a sewage discharge system on a ship in the prior art is not economical, and provides a discharge system for a ship and the ship.

The invention solves the technical problems through the following technical scheme:

an exhaust system for a vessel, the vessel comprising a plurality of compartments and a stem, the compartments being located above the stem, the exhaust system comprising:

the bilge well of each cabin is communicated with the stem tip cabin through the first drain pipe;

a plurality of deck plane valves installed in the sewage well of each of the compartments, the deck plane valves being used to open or close the first sewage drain pipe;

the second blow-off pipe is used for communicating the fore peak cabin to the outside;

and the jet pump is arranged on the second drainage pipe and pumps the sewage of the stem tip cabin to the outside through the second drainage pipe.

In the scheme, the discharge system can open the deck plane valve and discharge sewage in the sewage wells of the cabins to the stem apex cabin through the first sewage discharge pipe, and the cabins are arranged above the stem apex cabin, so that the sewage is automatically discharged by means of gravity in the process of being discharged to the stem apex cabin, and no additional energy consumption is needed; in addition, the sewage of the fore peak cabin is pumped outside through the same water spray pump, so that the number of the arranged water spray pumps is reduced, and the economic benefit is improved. Due to the high tightness of the deck level valve, the drainage system can meet the water-tight separation requirement of each cabin after the deck level valve is closed.

The cabin on the ship is closed, oil gas or gas is easy to gather, a jet pump without mechanical transmission is adopted to suck sewage, and the oil gas or gas cannot be ignited, so that safety accidents are caused.

Preferably, the working fluid of the jet pump is pressure water.

In the scheme, the jet pump is a fluid power pump, has no mechanical transmission and mechanical working components, and uses the energy of pressure water as a power source to convey low-energy sewage. Compared with other working fluids, the pressure water is obtained through the existing water supply system on the ship, additional equipment does not need to be additionally arranged, and the economic benefit is improved.

Preferably, the jet pump comprises a screen mounted to an inlet of the jet pump.

In this scheme, the filter screen is used for straining the impurity in the sewage, prevents that impurity from getting into and blockking the jet pump, improves discharge system's reliability.

Preferably, the deck plate valve includes a valve body and a valve element, the valve body is installed at the bottom of the bilge well of the cabin, a discharge hole is formed in the middle of the valve body, the first blowdown pipe is communicated with the bilge well of the cabin through the discharge hole, the valve body is provided with a valve seat, the valve seat is arranged in the discharge hole, one end of the valve element abuts against the valve seat, the other end of the valve element is connected to the valve body, and the distance between the valve element and the valve seat is adjustable.

In the scheme, when the valve core abuts against the valve seat, the deck plane valve closes the first drain pipe to meet the watertight separation requirement of each cabin; when the valve core is far away from the valve seat, the first drain pipe is opened by the deck plane valve, and sewage is drained.

Preferably, the valve seat has an annular inclined surface inclined toward the inside of the bleed hole in a direction in which the valve element abuts the valve seat.

In this scheme, annular inclined plane and case cooperation use improve deck plane valve's sealing performance. Due to the fact that the annular inclined surface is arranged, when the deck plane valve is opened or closed, the opening degree of the valve is gradually changed, and user experience is improved.

Preferably, the deck plate valve further comprises a sealing ring, an annular mounting groove is formed in the outer peripheral surface of the valve core, the sealing ring is embedded in the annular mounting groove, and the sealing ring is used for sealing a gap between the valve core and the valve seat.

In this scheme, the sealing ring is the elastomer, and the sealing ring inlays in cyclic annular mounting groove, and when deck plane valve closed, the case compressed tightly the sealing ring at the internal surface of disk seat, improved deck plane valve's sealing performance. Due to the existence of the annular inclined surface, if the sealing ring has little abrasion, the abrasion can be eliminated by adjusting the distance between the valve core and the valve seat, and the service life of the sealing ring is prolonged. Preferably, the sealing ring is a rubber ring.

Preferably, the valve body further comprises a support, the support is mounted on the upper surface of the valve body, the valve core comprises a rod portion and a butting portion, the rod portion and the butting portion are connected with each other, the butting portion is used for butting against the valve seat, an external thread is arranged on the outer peripheral surface of the rod portion, and one end of the rod portion penetrates through the support and is in threaded connection with the support through the external thread.

In this scheme, the support is used for fixing and supporting the case, through clockwise or anticlockwise rotation pole portion, realizes deck plane valve's regulation.

Preferably, the valve core further has a holding portion, the holding portion is disposed at one end of the rod portion away from the abutting portion, and the holding portion extends and protrudes along a radial direction of the rod portion.

In this scheme, the portion of gripping is cyclic annular, and the both hands of being convenient for are gripped for simple, laborsaving when operating deck plane valve.

Preferably, the deck plane valve is welded to the vessel.

In this scheme, adopt above-mentioned structural style for each cabin satisfies the watertight partition requirement.

A vessel comprising an exhaust system for a vessel as described above.

In the scheme, the deck plane valve is opened, sewage in each cabin is automatically discharged to the stem nose cabin through gravity, then the jet pump is used for discharging the sewage in the stem nose cabin to the outside, and the operation is simple and convenient. And when the deck plane valve is closed, each cabin can meet the watertight separation requirement, so that the safety is improved.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.

The positive progress effects of the invention are as follows: the discharge system can open the deck plane valve and discharge sewage in the sewage wells of all the cabins to the stem apex cabin through the first sewage discharge pipe, and the cabins are arranged above the stem apex cabin, so that the sewage is automatically discharged by gravity in the process of being discharged to the stem apex cabin, and no additional energy consumption is needed; in addition, the sewage of the fore peak cabin is pumped outside through the same water spray pump, so that the number of the arranged water spray pumps is reduced, and the economic benefit is improved. Due to the high tightness of the deck level valve, the drainage system can meet the water-tight separation requirement of each cabin after the deck level valve is closed.

Drawings

Fig. 1 is a schematic structural view of a ship and an exhaust system for the ship according to a preferred embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a deck plane valve according to a preferred embodiment of the present invention.

Description of reference numerals:

ship 300

Cabin 10

Bilge well 101

Fore peak 20

First sewage draining pipe 1

Second blow-off pipe 2

Jet pump 3

Screen 31

Deck plane valve 4

Valve body 41

A bleed hole 411

Valve seat 412

Annular inclined surface 4121

Support 413

Valve core 42

Rod 421

Abutment 422

Sealing ring 43

Grip portion 44

First conduit 30

Pressure water flow direction 100

Sewage flow direction 200

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1 and 2, the present embodiment discloses an exhaust system for a ship and a ship. The vessel 300 comprises a plurality of separate compartments 10 and a stem 20, all compartments 10 being located above the stem 20. The draining system comprises a first drain pipe 1, a second drain pipe 2, a jet pump 3 and a deck level valve 4. The number of the first sewage pipes 1 and the deck level valves 4 is plural. The bilge well 101 of each chamber 10 is in communication with the fore peak 20 via a first sewage drain 1. Also mounted in the bilge well 101 of each compartment 10 is a deck level valve 4, the deck level valve 4 being used to open or close the first sewage drain pipe 1. The second blow off pipe 2 serves to communicate the stem apex 20 to the outside. The jet pump 3 is arranged on the second blow-off pipe 2, and the jet pump 3 pumps the sewage of the stem tip cabin 20 to the outside through the second blow-off pipe 2.

In the embodiment, the discharge system can open the deck plane valve 4 and discharge the sewage in the bilge wells 101 of each chamber 10 to the stem apex 20 through the first sewage discharge pipe 1, and as the chamber 10 is arranged above the stem apex 20, the sewage is automatically discharged by gravity in the process of being discharged to the stem apex 20 without additional energy consumption; moreover, the sewage in the fore peak cabin 20 is pumped outside through the same water injection pump, so that the number of the arranged injection pumps 3 is reduced, and the economic benefit is improved. Due to the high tightness of the deck level valve 4, the drainage system is also able to meet the watertight separation requirements of the individual compartments 10 after the deck level valve 4 has been closed. Wastewater flow direction 200 is indicated by the arrow labeled in fig. 1.

The jet pump 3 is a fluid power pump, has no mechanical transmission and mechanical working member, and uses the energy of working fluid as a power source to deliver low-energy sewage. The ejector pump 3 is a device for evacuating a gas in a container by using a high-speed jet of a nozzle to obtain a vacuum, and is also called a jet vacuum pump.

Generally, the cabin 10 of the ship 300 is relatively closed, oil gas or gas is easy to gather, the jet pump 3 without mechanical transmission is adopted to suck sewage, and the oil gas or gas is not ignited, so that safety accidents are caused, and compared with other power pumps, the jet pump 3 has a higher safety level. In the present embodiment, the working fluid of the jet pump 3 is pressure water, and the pressure water is connected to a pressure water inlet of the jet pump 3 through a first pipe 30. Compared with other working fluids, the pressure water is obtained through the existing water supply system on the ship 300, additional equipment does not need to be additionally arranged, and economic benefits are improved. Preferably, the jet pump 3 includes a strainer 31, and the strainer 31 is installed at an inlet of the jet pump 3 to filter impurities in the sewage, prevent the impurities from entering and blocking the jet pump 3, and improve reliability of the discharge system. The pressurized water flow direction 100 is shown by the arrow labeled in fig. 1.

As shown in fig. 2, deck planar valve 4 includes a valve body 41 and a valve spool 42. The valve body 41 is installed at the bottom of the sump 101 of the cabin 10, a discharge hole 411 is formed in the middle of the valve body 41, and the first exhaust pipe 1 communicates with the sump 101 of the cabin 10 through the discharge hole 411. The valve body 41 has a valve seat 412, the valve seat 412 is provided in the drain hole 411, one end of the valve body 42 abuts on the valve seat 412, the other end of the valve body 42 is connected to the valve body 41, and the distance of the valve body 42 from the valve seat 412 is adjustable. When the valve core 42 is abutted against the valve seat 412, the deck plane valve 4 closes the first drain pipe 1, and the watertight separation requirement of each chamber 10 is met; when the spool 42 is away from the valve seat 412, the deck level valve 4 opens the first drain pipe 1, draining the sewage.

Preferably, the valve seat 412 has an annular inclined surface 4121, and the annular inclined surface 4121 is inclined toward the inside of the bleed hole 411 in a direction in which the valve element 42 abuts the valve seat 412. The annular inclined surface 4121 is used in cooperation with the valve element 42, and improves the sealing performance of the deck plate valve 4. Due to the inclined plane, when the deck plane valve 4 is opened or closed, the valve opening degree is gradually changed, and the user experience is improved.

Further, the deck surface valve 4 further includes a sealing ring 43, an annular mounting groove is provided on the outer peripheral surface of the valve core 42, the sealing ring 43 is embedded in the annular mounting groove, and the sealing ring 43 is used for sealing the gap between the valve core 42 and the valve seat 412. The sealing ring 43 is an elastic body, the sealing ring 43 is embedded in the annular installation groove, and when the deck plane valve 4 is closed, the valve core 42 presses the sealing ring 43 on the inner surface of the valve seat 412, so that the sealing performance of the deck plane valve 4 is improved. Due to the presence of the annular inclined surface 4121, if the seal ring 43 is worn a little, the distance between the valve core 42 and the valve seat 412 can be adjusted to eliminate the wear, and the service life of the seal ring 43 can be prolonged. Preferably, the sealing ring is a rubber ring.

As shown in fig. 2, the valve body 41 further includes a bracket 413, and the bracket 413 is mounted to an upper surface of the valve body 41. The valve body 42 includes a rod portion 421 and an abutting portion 422 connected to each other, the abutting portion 422 is used for abutting against the valve seat 412, an external thread is provided on an outer peripheral surface of the rod portion 421, and one end of the rod portion 421 passes through the support 413 and is screwed to the support 413 through the external thread. The bracket 413 is used for fixing and supporting the valve core 42, and the adjustment of the deck plane valve 4 is realized by rotating the rod part 421 clockwise or anticlockwise. Preferably, the valve core 42 further has a holding portion 44, the holding portion 44 is provided at one end of the rod portion 421 away from the abutting portion 422, and the holding portion 44 is protruded in a radial direction of the rod portion 421. Preferably, the gripping portion 44 is annular to facilitate gripping by two hands, making it simple and labor-saving to operate the deck planar valve 4.

The deck plane valve 4 is welded to the deck of the vessel 300 such that the deck plane valve 4 and the deck form an integral structure to meet the watertight separation requirements of the compartments 10. When the deck plane valve 4 is opened, the sewage in each chamber 10 is automatically discharged to the stem tip 20 by gravity; each compartment 10 can also meet watertight separation requirements when deck plane valve 4 is closed.

The present embodiment also discloses a vessel, which vessel 300 comprises an exhaust system for a vessel as described above, which exhaust system is mounted between each compartment 10 and the stem apex 20. The volume of the fore peak 20 is large, a certain amount of sewage can be stored, the sewage of each sewage well 101 can be discharged to the fore peak 20 to be stored at any time according to needs, after the fore peak 20 contains a certain amount of sewage, the jet pump 3 is started to discharge the sewage to the outside through the second sewage discharge pipe 2, the jet pump 3 does not need to be started frequently, and the operation is convenient.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. An exhaust system for a vessel comprising a plurality of compartments and a stem, said compartments being located above said stem, characterized in that said exhaust system comprises:

2. The draining system for marine vessels according to claim 1, wherein the working fluid of said jet pump is pressurized water.

3. The exhaust system for a marine vessel of claim 1, wherein said jet pump includes a screen mounted to an inlet of said jet pump.

4. The exhaust system for the marine vessel according to claim 1, wherein the deck plate valve includes a valve body installed at a bottom of a sump of the cabin, a bleed hole is provided at a middle portion of the valve body, the first exhaust pipe communicates with the sump of the cabin through the bleed hole, the valve body has a valve seat provided in the bleed hole, one end of the valve seat abuts against the valve seat, the other end of the valve seat is connected to the valve body, and a distance of the valve seat relative to the valve seat is adjustable.

5. The exhaust system for a ship according to claim 4, wherein the valve seat has an annular inclined surface inclined toward the inside of the bleed hole in a direction in which the spool abuts against the valve seat.

6. The exhaust system for a ship of claim 4, wherein the deck plate valve further comprises a sealing ring, an annular installation groove is provided on an outer circumferential surface of the valve core, the sealing ring is fitted in the annular installation groove, and the sealing ring is used for sealing a gap between the valve core and the valve seat.

7. The exhaust system for a ship according to claim 4, wherein the valve body further comprises a bracket mounted on an upper surface of the valve body, the valve element comprises a rod portion and an abutting portion connected to each other, the abutting portion is used for abutting against the valve seat, an external thread is provided on an outer circumferential surface of the rod portion, and one end of the rod portion passes through the bracket and is threadedly connected to the bracket through the external thread.

8. The exhaust system for a marine vessel according to claim 7, wherein the valve body further has a grip portion provided at an end of the stem portion remote from the abutment portion, the grip portion extending in a radial direction of the stem portion in a convex shape.

9. A draining system for a vessel according to any one of claims 1-8, wherein the deck plane valve is welded to the vessel.

10. A ship, characterized in that it comprises an exhaust system for a ship according to any one of claims 1-9.