CN110843998B - A ship tank washing water discharge system - Google Patents
A ship tank washing water discharge system Download PDFInfo
- Publication number
- CN110843998B CN110843998B CN201911145189.2A CN201911145189A CN110843998B CN 110843998 B CN110843998 B CN 110843998B CN 201911145189 A CN201911145189 A CN 201911145189A CN 110843998 B CN110843998 B CN 110843998B
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- CN
- China
- Prior art keywords
- pipe
- water injection
- valve
- cabin
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 238000005406 washing Methods 0.000 title claims abstract description 19
- 238000002347 injection Methods 0.000 claims abstract description 38
- 239000007924 injection Substances 0.000 claims abstract description 38
- 238000002955 isolation Methods 0.000 claims abstract description 25
- 238000007599 discharging Methods 0.000 claims description 17
- 238000010408 sweeping Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 4
- 230000002000 scavenging effect Effects 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 25
- 238000011010 flushing procedure Methods 0.000 description 17
- 239000000446 fuel Substances 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 4
- 230000004075 alteration Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Feeding And Controlling Fuel (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本发明公开了一种船舶洗舱水排放系统。该系统包括设置在油舱底侧的吸口，每一吸口连接有出舱管，出舱管上设有隔离截止阀，隔离截止阀连接有迂回管，迂回管的顶部设置在油舱内的油液面以上，迂回管的顶部设有隔离阀、第一注水管和第二注水管，第一注水管和第二注水管分别设置在隔离阀的两侧，第一注水管和第二注水管上分别设有第一注水阀和第二注水阀，迂回管经管路连接有扫舱泵。本发明通过设置迂回管，有效防止在洗舱水排放管路中的阀门因故障出现关闭不严或渗漏时，造成货物的污染和浪费，在洗舱水的液位较低时，可通过注水管补水，延长排放泵可允许的运行时间，避免油舱内残留的洗舱水过多；并减少消防泵的使用时间，提高安全性。
The present invention discloses a tank washing water discharge system for ships. The system comprises a suction port arranged at the bottom side of the oil tank, each suction port is connected to a tank discharge pipe, an isolation stop valve is arranged on the tank discharge pipe, the isolation stop valve is connected to a detour pipe, the top of the detour pipe is arranged above the oil level in the oil tank, an isolation valve, a first water injection pipe and a second water injection pipe are arranged on the top of the detour pipe, the first water injection pipe and the second water injection pipe are arranged on both sides of the isolation valve respectively, the first water injection pipe and the second water injection pipe are respectively provided with a first water injection valve and a second water injection valve, and the detour pipe is connected to a tank stripping pump via a pipeline. The present invention effectively prevents the pollution and waste of cargo when the valve in the tank washing water discharge pipeline is not closed tightly or leaks due to a fault by arranging a detour pipe, when the tank washing water level is low, water can be replenished through the water injection pipe, the allowable running time of the discharge pump is extended, and excessive tank washing water remaining in the oil tank is avoided; and the use time of the fire pump is reduced, thereby improving safety.
Description
Technical Field
The invention relates to the field of ship cabin washing water discharge systems, in particular to a ship cabin washing water discharge system.
Background
When the ship oil tank stores fuel oil, the inner wall of the oil tank can be polluted by impurities in the fuel oil, particularly the pollution of crude oil to the oil tank is serious, the impurities are attached to the bulkhead and the bilge, the bulkhead and the bilge are required to be cleaned manually, and the cleaning operation can produce tank washing water. The existing cabin washing water discharge has certain defects, firstly, if a fire pump is adopted to produce high-speed and large-flow water flow on a south training wheel 2 to drive a jet pump to discharge cabin washing water in an oil cabin, the fire pump is an emergency device, and the service life of the fire pump can be lost when the fire pump is frequently used for discharging the cabin washing water, so that potential safety hazards exist. Secondly, when there is a fuel stage stored in the tank, such as when a valve on the discharge system is not tightly closed, there is a possibility that fuel flows into the discharge pump inlet or other chambers connected to the discharge pump outlet through the discharge piping, resulting in a waste of cargo leakage.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a ship cabin washing water discharge system.
In order to achieve the above purpose, the invention provides a ship cabin washing water discharge system, which comprises suction ports arranged at the bottom side of each oil cabin, each suction port is connected with a cabin outlet pipe, each cabin outlet pipe is provided with an isolation stop valve, each isolation stop valve is connected with a bypass pipe through a pipeline, the top of each bypass pipe is arranged above the oil liquid level in each oil cabin, each bypass pipe is provided with an isolation valve, a first water injection pipe and a second water injection pipe, each first water injection pipe and each second water injection pipe are respectively arranged at two sides of each isolation valve, each bypass pipe is respectively provided with a first water injection valve and a second water injection valve, each bypass pipe is connected with a cabin sweeping pump through a pipeline, and each of the inlet side and the outlet side of each cabin sweeping pump is respectively provided with an inlet stop valve and an outlet stop valve.
Furthermore, two lower ends of the bypass pipe are respectively connected with a single-phase stop valve.
Further, the isolation valve is a planar valve.
Further, the cabin sweeping pump is a screw pump.
Further, the circuitous pipe is in an inverted U shape.
Further, the top of the detour pipe is arranged at a position of 96% of the height of the oil tank.
Furthermore, the two lower ends of the circuitous pipe are respectively connected with a residual discharging pipe, and residual discharging valves are arranged on the residual discharging pipes.
The beneficial effects are that: according to the invention, by arranging the bypass pipe, when a valve in the flushing cabin water discharge pipeline is not tightly closed or leaks due to faults, fuel oil in the oil cabin is effectively prevented from leaking to the discharge pump or other cabins connected with the discharge pump through the discharge pipeline, pollution and waste of goods are avoided, when the liquid level of flushing cabin water is low, water can be supplemented through the water injection pipe, the allowable running time of the discharge pump is prolonged, and excessive flushing cabin water remained in the oil cabin is avoided; and the service time of the fire pump is shortened, and the safety is improved.
Drawings
Fig. 1 is a schematic structural view of a ship wash water discharge system according to an embodiment of the present invention.
Detailed Description
The invention will be further illustrated by the following drawings and specific examples, which are carried out on the basis of the technical solutions of the invention, it being understood that these examples are only intended to illustrate the invention and are not intended to limit the scope of the invention.
As shown in fig. 1, an embodiment of the present invention provides a ship wash water discharge system, which includes suction ports disposed at the upper sides of the bottoms of the oil tanks, taking two oil tanks as a left and right as an example, the suction ports include a left suction port 2 disposed in a left oil tank 1 and a right suction port 4 disposed in a right oil tank 3, the left suction port 2 is connected with a left side outlet pipe 5, the right oil suction port 4 is connected with a right side outlet pipe 6, the left side outlet pipe 5 and the right side outlet pipe 6 respectively pass through the bulkheads of the left side oil tank 1 and the right side oil tank 3 to extend outside, an isolation stop valve V1 is disposed on the left side outlet pipe 5, an isolation stop valve V2 is disposed on the right side outlet pipe 6, the isolation stop valve V1 and the isolation stop valve V2 are respectively connected with a detour pipe 7 through a pipeline, and the detour pipe is preferably disposed in an inverted U shape. The tops of the detour pipes 7 are arranged above the oil levels in the port oil tank 1 and the starboard oil tank 3. The top of the highest detour pipe 7 is provided with an isolation valve V5, a first water injection pipe 8 and a second water injection pipe 9, wherein the isolation valve V5 is preferably a planar valve. The first water injection pipe 8 and the second water injection pipe 9 are respectively arranged on two sides of the isolation valve V5, the first water injection valve V3 and the second water injection valve V4 are respectively arranged on the first water injection pipe 8 and the second water injection pipe 9, the bypass pipe 7 is connected with the cabin sweeping pump P1 through a pipeline, the cabin sweeping pump P1 is preferably a screw pump, the inlet side and the outlet side of the cabin sweeping pump P1 are respectively provided with the inlet stop valve V6 and the outlet stop valve V7, the outlet stop valve V7 is connected with the sewage cabin and the outside through the pipeline, and improvement of the part is not related, and is not repeated. To prevent the back flow of the cabin washing water entering the detour pipe 7, a single-phase stop valve V8 and a single-phase stop valve V9 are connected to both lower ends of the detour pipe 7.
Since the maximum allowable oil storage amount in the general oil tank is 96% of the liquid level to the height of the oil tank, the top of the detour pipe 7 is preferably arranged at 96% of the height of the oil tank, and the height of the oil tank is about 5.7m for example by reforming a driving wheel 2, and the top of the detour pipe 7 is arranged at 5.47m, under this condition, even if the isolation stop valve V1 and the isolation stop valve V2 or the single stop valve V8 are not tightly closed, the fuel cargo is not leaked to the inlet side of the tank cleaning pump P1. The surplus space on the upper side of the bypass pipe 7 can meet the installation requirements of the isolation valve V5, the first water injection pipe 8 and the second water injection pipe 9. In order to prevent residual flushing water and fuel oil in the pipeline after the flushing water is discharged and before the flushing operation, the two lower ends of the detour pipe 7 are respectively connected with a residual discharging pipe 10 and a residual discharging pipe 11, the residual discharging pipe 10 is provided with a residual discharging valve V10, and the residual discharging pipe 11 is provided with a residual discharging valve V11.
Before the cabin washing starts, the residual valve V10 can be opened to discharge fuel which can leak through the isolation stop valve V1 and the isolation stop valve V2, so that waste is avoided. Then closing the residual discharging valve V10, opening other valves in the discharging loop, injecting water into the bypass pipe 7 through the first water injection pipe 8 and the second water injection pipe 9, avoiding dry rotation of the flushing water before reaching the discharging pump P1, starting the discharging pump P1 to discharge the flushing water, and when the water level in the flushing water is low, enabling the flushing water and air in the flushing water to enter the suction port together, so as to prevent the flushing water in the flushing water tank from being discharged completely due to the fact that the flushing water in the flushing water tank is similar to dry rotation due to excessive air sucked from the suction port, and leading to temperature rise, at the moment, introducing a proper amount of water through the first water injection pipe 8 and the second water injection pipe 9, and avoiding blocking phenomenon due to the fact that the flushing water in the flushing water tank is too high. After the discharge of the washing water, the residual valve V10 and the residual valve V11 may be opened to discharge the residual washing water, and then the residual valve V10 and the residual valve V11 may be closed.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that other parts not specifically described are within the prior art or common general knowledge to a person of ordinary skill in the art. Modifications and alterations may be made without departing from the principles of this invention, and such modifications and alterations should also be considered as being within the scope of the invention.
Claims (3)
1. The ship cabin washing water discharge system is characterized by comprising suction ports arranged at the bottom side of each oil cabin, each suction port is connected with a cabin outlet pipe, each cabin outlet pipe is provided with an isolation stop valve, each isolation stop valve is connected with a detour pipe through a pipeline, the top of each detour pipe is arranged above the oil liquid level in each oil cabin, each detour pipe is provided with an isolation valve, a first water injection pipe and a second water injection pipe, each first water injection pipe and each second water injection pipe are respectively arranged at two sides of each isolation valve, each first water injection pipe and each second water injection pipe are respectively provided with a first water injection valve and a second water injection valve, each detour pipe is connected with a cabin sweeping pump through a pipeline, and each inlet side and each outlet side of the cabin sweeping pump are respectively provided with an inlet stop valve and an outlet stop valve;
the two lower ends of the bypass pipe are respectively connected with a single-phase stop valve;
The isolating valve is a plane valve;
the circuitous pipe is in an inverted U shape;
The two lower ends of the circuitous pipe are also respectively connected with a residual discharging pipe, and residual discharging valves are arranged on the residual discharging pipes.
2. The marine wash water drainage system of claim 1, wherein the scavenging pump is a screw pump.
3. The ship wash water drainage system of claim 1, wherein the top of the circuitous pipe is positioned at 96% of the level of the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911145189.2A CN110843998B (en) | 2019-11-21 | 2019-11-21 | A ship tank washing water discharge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911145189.2A CN110843998B (en) | 2019-11-21 | 2019-11-21 | A ship tank washing water discharge system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110843998A CN110843998A (en) | 2020-02-28 |
| CN110843998B true CN110843998B (en) | 2024-11-19 |
Family
ID=69603264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911145189.2A Active CN110843998B (en) | 2019-11-21 | 2019-11-21 | A ship tank washing water discharge system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110843998B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112278150A (en) * | 2020-11-02 | 2021-01-29 | 中船黄埔文冲船舶有限公司 | Bilge water system and ship |
| CN113525588A (en) * | 2021-08-31 | 2021-10-22 | 广船国际有限公司 | Ship cabin cabinet device and maintenance method |
| CN115924015A (en) * | 2022-12-14 | 2023-04-07 | 海洋石油工程股份有限公司 | A multifunctional water supply system for floating platforms |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211139567U (en) * | 2019-11-21 | 2020-07-31 | 南京盛航海运股份有限公司 | Ship cabin washing water discharge system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3623920B2 (en) * | 2001-01-09 | 2005-02-23 | 株式会社新来島どっく | Cargo tank cleaning and hot water heating system |
| GB201019993D0 (en) * | 2010-11-24 | 2011-01-05 | Seafarm Products As | Process |
| KR101714504B1 (en) * | 2015-05-13 | 2017-03-09 | 대우조선해양 주식회사 | Drainage using Column of Offshore |
| CN209410281U (en) * | 2018-12-21 | 2019-09-20 | 南京盛航海运股份有限公司 | Tanker oceangoing ship raffinate collection system |
-
2019
- 2019-11-21 CN CN201911145189.2A patent/CN110843998B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211139567U (en) * | 2019-11-21 | 2020-07-31 | 南京盛航海运股份有限公司 | Ship cabin washing water discharge system |
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| Publication number | Publication date |
|---|---|
| CN110843998A (en) | 2020-02-28 |
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