CN113650728A - Chemical oil tanker deck residual liquid system - Google Patents

Chemical oil tanker deck residual liquid system Download PDF

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Publication number
CN113650728A
CN113650728A CN202110917414.0A CN202110917414A CN113650728A CN 113650728 A CN113650728 A CN 113650728A CN 202110917414 A CN202110917414 A CN 202110917414A CN 113650728 A CN113650728 A CN 113650728A
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CN
China
Prior art keywords
raffinate
cabin
air duct
pipe
deck
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Pending
Application number
CN202110917414.0A
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Chinese (zh)
Inventor
郑佳俊
李洪亮
蒋士兴
杨金国
钱琨
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Chengxi Shipyard Co Ltd
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Chengxi Shipyard Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengxi Shipyard Co Ltd filed Critical Chengxi Shipyard Co Ltd
Priority to CN202110917414.0A priority Critical patent/CN113650728A/en
Publication of CN113650728A publication Critical patent/CN113650728A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/06Refuse discharge, e.g. for ash

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

The invention discloses a chemical tanker deck residual liquid system, which comprises a deck, a liquid discharge pipeline, a residual liquid cabin and a rain well cabin, wherein the liquid discharge pipeline is obliquely arranged from high to low from the rain well cabin to the residual liquid cabin; compared with the prior art, the technical scheme has the advantages that the prior system is not required to be provided with the pneumatic diaphragm pump, the initial cost and the production cost are reduced, the operation cost is low, the later maintenance cost of the pneumatic diaphragm pump is saved, and the trouble that the self-absorption capacity of part of the pneumatic diaphragm pumps is insufficient is solved.

Description

Chemical oil tanker deck residual liquid system
Technical Field
The invention relates to the field of oil tanker equipment, in particular to a chemical oil tanker deck residual liquid system.
Background
When the deck raffinate of petrochemical ship remained in the rainwater well for a long time, poisonous or harmful substance that raffinate itself probably contained can cause harm to ship and crew, and the raffinate also probably produces some harmful gas of volatilizing, and most petrochemical ships adopt fixed screw pump, centrifugal pump or pneumatic diaphragm pump to refute the deck raffinate in the rainwater well at present usually, in case refute the pump and break down, the deck raffinate will remain in the rainwater well for a long time to cause great potential safety hazard.
Disclosure of Invention
Technical problem to be solved
The present invention is directed to solving the above problems and providing a chemical tanker deck raffinate system, which overcomes the disadvantages of the prior art and is described in detail below.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a chemical tanker deck residual liquid system, which comprises a deck, a liquid discharge pipeline, a residual liquid cabin and a rain well cabin, wherein the liquid discharge pipeline is obliquely arranged from high to low from the rain well cabin to the residual liquid cabin;
and one end of the liquid discharge pipeline, which is close to the deck valve, is respectively provided with a stop check valve and a blowing and sucking assembly.
Adopt above-mentioned structure, during the use, the flowing back pipeline route rain well cabin is by high to low slope setting towards raffinate cabin direction, thereby remain the natural flow to the raffinate in the rain well cabin with the liquid in the rain well cabin, water storage bent pipe structure is when the raffinate flows into the raffinate cabin, have partly liquid can be preserved in the water storage bent pipe structure, play isolated sealed effect, can play the effect by the refluence by the check valve, blow the subassembly of breathing in and can realize two kinds of functions, one kind is the liquid that is used for driving the drainage pipeline in, use when being convenient for clear storehouse, another kind is the vacuum environment that forms in the flowing back pipeline, thereby produce suction, utilize the siphon principle, thereby with the indoor raffinate of rain well cabin inhale the raffinate in the raffinate fast in the raffinate cabin, the flowing back time has greatly been saved.
Further, the fluid-discharge pipeline is including first fluid-discharge tube, second fluid-discharge tube and the U type standpipe of difference sealing connection in proper order, wherein ends the check valve setting between first fluid-discharge tube and second fluid-discharge tube, and water storage return bend structure adopts U type standpipe, be provided with the altitude mixture control subassembly that is used for driving its delivery port to go up and down on the U type standpipe.
Further, the height adjusting assembly comprises an electric telescopic rod fixedly arranged on the deck, a telescopic pipe is formed at the position, close to the water outlet, of the vertical pipe of the U-shaped water storage pipe, pipe fixing plates are fixedly arranged at the two ends of the telescopic pipe, a push rod of the electric telescopic rod is fixedly connected with the pipe fixing plate located above the electric telescopic rod, and the push rod of the electric telescopic rod is connected with the pipe fixing plate located below the electric telescopic rod in a sliding mode.
Further, the upper portion in the raffinate cabin is provided with the baroceptor that is used for detecting its interior atmospheric pressure, and baroceptor feeds back the raffinate cabin interior atmospheric pressure that detects to electric telescopic handle and is used for controlling the delivery port lift of U type standpipe.
Furthermore, the air blowing and inhaling component comprises a second air duct, one end of the second air duct is connected to the first liquid discharging pipe, and the other end of the second air duct penetrates out of the deck and is provided with a first electromagnetic valve.
Furthermore, the air blowing and sucking component further comprises an air pump, the air inlet and the air outlet of the air pump are respectively connected with a first air guide tube and a second air guide tube, the first air guide tube and the second air guide tube are communicated with each other through a first air branch tube, one end, close to the air pump, of the second air guide tube is connected with a second air branch tube, a third electromagnetic valve is arranged on the second air branch tube, a second electromagnetic valve is arranged on the first air branch tube, and the first electromagnetic valve is arranged on the second air guide tube between the first air branch tube and the second air branch tube.
Furthermore, a fourth electromagnetic valve is arranged at one end of the U-shaped water storage pipe close to the second liquid discharge pipe.
Further, the water outlet level of the U-shaped water storage pipe is lower than the water inlet level of the first liquid drainage pipe.
(III) advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. compared with the prior art, the technical scheme has the advantages that the prior system is not required to be provided with the pneumatic diaphragm pump, the initial cost and the production cost are reduced, the operation cost is low, the later maintenance cost of the pneumatic diaphragm pump is saved, and the trouble that the self-absorption capacity of part of the pneumatic diaphragm pumps is insufficient is solved.
2. The safety is good, and the whole system comprises valve and pipeline, does not have vulnerable parts such as pump, is difficult to produce the trouble, can in time handle deck raffinate, reduces the harmful substance volume of volatilizing in the raffinate.
3. Blow and inhale the gas subassembly and can realize two kinds of functions, one kind is the liquid that is used for cleaing away in the drainage pipe way, uses when being convenient for clear storehouse, and another kind is the vacuum environment that forms in the fluid-discharge line way to produce suction utilizes the siphon principle, thereby inhales the incomplete liquid cabin with the interior raffinate of rain well cabin fast in, has greatly saved the flowing back time.
4. The height adjusting assembly, the air pressure sensor and the telescopic pipe are matched to adjust the height of a liquid outlet of the liquid discharging pipeline according to the air pressure change in the telescopic pipe.
5. The liquid drainage pipeline, the height adjusting assembly, the air pressure sensor, the stop check valve, the air blowing and sucking assembly, the first plate valve, the fourth electromagnetic valve and the like are mutually cooperated to realize quick and timely discharge of residual liquid to the residual liquid cabin, and functions of liquid cleaning and the like in the liquid drainage pipeline form an integral body which cannot be divided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic front view of the present invention;
fig. 2 is a schematic view of the present invention at a point a with a partially enlarged structure.
The reference numerals are explained below: 1. a deck; 2. a drainage line; 201. a first drain pipe; 202. a second drain pipe; 203. a U-shaped water storage pipe; 203a, a telescopic pipe; 3. a raffinate compartment; 4. a height adjustment assembly; 4a, an electric telescopic rod; 4b, fixing the tube; 5. an air pressure sensor; 6. a stop check valve; 7. a blowing and sucking air component; 701. a first air duct; 702. a second air duct; 703. a first solenoid valve; 704. a first bronchus; 705. a second solenoid valve; 706. an air pump; 707. a third electromagnetic valve; 708. a second bronchus; 8. a first plate valve; 9. a fourth solenoid valve; 10. a rain well chamber.
Detailed Description
For the purposes of the present invention; technical solutions and advantages will be more apparent, and the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1-2, the invention provides a chemical tanker deck residual liquid system, comprising a deck 1, a liquid discharge pipeline 2, a residual liquid cabin 3 and a rain well cabin 10, residual liquid on the deck is accumulated in the rain well cabin 10, the liquid discharge pipeline 2 is arranged in an inclined manner from high to low from the rain well cabin 10 to the direction of the residual liquid cabin 3, the residual liquid accumulated in the rain well cabin 10 can flow into the residual liquid cabin 3 from the liquid discharge pipeline 2, a first plate valve 8 is arranged in the rain well cabin 10, in practical application, the first plate valve 8 is used for controlling the opening and closing of an inlet of the liquid discharge pipeline 2, one end of the liquid discharge pipeline 2 is connected with a valve port of the first plate valve 8, the other end of the liquid discharge pipeline 2 extends into the residual liquid cabin 3 and is provided with a water storage elbow structure in the residual liquid cabin 3, when the residual liquid flows into the residual liquid cabin 3, a part of the liquid can be stored in the water storage elbow structure, the function of isolation and sealing is achieved; and one end of the liquid discharge pipeline 2, which is close to the first plate valve 8, is respectively provided with a stop check valve 6 and a blowing and sucking assembly 7.
Referring to the attached drawing 1 in the specification, the drainage pipeline 2 includes a first drainage pipe 201, a second drainage pipe 202 and a U-shaped water storage pipe 203 which are respectively connected in a sealing manner in sequence, wherein a stop check valve 6 is arranged between the first drainage pipe 201 and the second drainage pipe 202, the water storage elbow structure adopts the U-shaped water storage pipe 203, and the U-shaped water storage pipe 203 is provided with a height adjusting assembly 4 for driving a water outlet of the U-shaped water storage pipe to lift. The water outlet level of the U-shaped water storage pipe 203 is lower than the water inlet level of the first drain pipe 201. Through the above-mentioned specific structure design, the raffinate that accumulates in the rain well cabin loops through first fluid-discharge tube 201, second fluid-discharge tube 202 and U type standpipe 203 and discharges into raffinate cabin 3 in, the break-make of drainage pipeline 2 can be controlled to stop check valve 6 to play the effect of cutting the refluence, wherein, the delivery port level of U type standpipe 203 is less than the water inlet level of first fluid-discharge tube 201, thereby with the leading-in raffinate cabin 3 of raffinate that accumulates in the rain well cabin.
The height adjusting assembly 4 comprises an electric telescopic rod 4a fixedly arranged on the deck 1, a telescopic pipe 203a is formed at the position, close to the vertical pipe of the water outlet, of the U-shaped water storage pipe 203, pipe fixing plates 4b are fixedly arranged at two ends of the telescopic pipe 203a, a push rod of the electric telescopic rod 4a is fixedly connected with the pipe fixing plate 4b positioned above the push rod, and the push rod of the electric telescopic rod 4a is slidably connected with the pipe fixing plate 4b positioned below the push rod. The upper portion is provided with the baroceptor 5 that is used for detecting its interior atmospheric pressure in the raffinate cabin 3, and baroceptor 5 feeds back the air pressure in the raffinate cabin 3 that detects to electric telescopic handle 4a and is used for controlling the delivery port lift of U type standpipe 203. Air pressure can change in practical application in raffinate cabin 3, and at this moment, air pressure sensor 5 feeds back the 3 interior air pressures of raffinate cabin that detect to electric telescopic handle 4a and is used for controlling the delivery port lift of U type standpipe 203 to be convenient for with the raffinate of rain well cabin internal accumulation all leading-in to raffinate cabin 3 in, avoid too big because of 3 interior air pressures of raffinate cabin, thereby lead to arranging not to enter raffinate cabin 3.
The air blowing and inhaling component 7 comprises a second air duct 702, one end of the second air duct 702 is connected to the first liquid exhaust pipe 201, and the other end of the second air duct 702 penetrates out of the deck 1 and is provided with a first electromagnetic valve 703. The air blowing and inhaling component 7 further comprises an air pump 706, an air inlet and an air outlet of the air pump 706 are respectively connected with a first air duct 701 and a second air duct 702, the first air duct 701 and the second air duct 702 are communicated with each other through a first air duct 704, one end of the second air duct 702 close to the air pump 706 is connected with a second air duct 708, a third electromagnetic valve 707 is arranged on the second air duct 708, a second electromagnetic valve 705 is arranged on the first air duct 704, and the first electromagnetic valve 703 is arranged on the second air duct 702 between the first air duct 704 and the second air duct 708. One end of the U-shaped water storage pipe 203 close to the second liquid discharge pipe 202 is provided with a fourth electromagnetic valve 9. Through above-mentioned specific structural design, in practical application, blow and inhale gas subassembly 7 and can realize two kinds of functions:
the first function is to blow: when the device is used, the second electromagnetic valve 705 and the third electromagnetic valve 707 are in a closed state, the first electromagnetic valve 703 and the fourth electromagnetic valve 9 are in an open state, and at the moment, the air pump 706 blows air into the liquid discharge pipeline 2 through the first air duct 701 and the second air duct 702 in sequence to remove liquid in the liquid discharge pipeline 2, so that the device is convenient to use during clearing.
The second function is inspiration: during the use, second solenoid valve 705 and third solenoid valve 707 are in the open mode, and first solenoid valve 703 and fourth solenoid valve 9 are in the closed mode, and air pump 706 loops through first air duct 701 and second air duct 702 with the interior gas suction of drainage pipe 2 this moment, form vacuum state, then close second solenoid valve 705 simultaneously, open fourth solenoid valve 9 to and open first plate valve 8, the vacuum environment in drainage pipe 2 forms suction, utilize the siphon principle, thereby with the interior raffinate of rain well cabin fast suction raffinate in the raffinate cabin 3, greatly saved the flowing back time.
Compared with the prior art, the technical scheme has the advantages that the prior system is not required to be provided with the pneumatic diaphragm pump, the initial cost and the production cost are reduced, the operation cost is low, the later maintenance cost of the pneumatic diaphragm pump is saved, and the trouble that the self-absorption capacity of part of the pneumatic diaphragm pumps is insufficient is solved. The safety is good, and the whole system comprises valve and pipeline, does not have vulnerable parts such as pump, is difficult to produce the trouble, can in time handle deck raffinate, reduces the harmful substance volume of volatilizing in the raffinate. Blow and inhale gas subassembly 7 and can realize two kinds of functions, one kind is the liquid that is used for cleaing away in the drainage pipe way 2, uses when being convenient for clear storehouse, and another kind is the vacuum environment that forms in the fluid-discharge line way 2 to produce suction, utilize the siphon principle, thereby with the interior raffinate of rain well cabin inhale raffinate cabin 3 fast in, greatly saved the flowing back time. The height adjusting assembly 4, the air pressure sensor 5 and the telescopic pipe 203a are matched to adjust the height of the liquid outlet of the liquid discharge pipeline 2 according to the air pressure change in the telescopic pipe 203 a. The liquid drainage pipeline 2, the height adjusting component 4, the air pressure sensor 5, the stop check valve 6, the air blowing and sucking component 7, the first plate valve 8, the fourth electromagnetic valve 9 and the like are mutually cooperated to realize quick and timely discharge of residual liquid into the residual liquid cabin 3 and functions of liquid cleaning and the like in the liquid drainage pipeline 2, so that an integral body is formed.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (8)

1. The utility model provides a chemicals oil tanker deck raffinate system which characterized in that: the device comprises a deck (1), a liquid discharge pipeline (2), a raffinate cabin (3) and a rain well cabin (10), wherein the liquid discharge pipeline (2) is obliquely arranged from high to low from the rain well cabin (10) to the raffinate cabin (3), a deck valve (8) is arranged in the rain well cabin (10), one end of the liquid discharge pipeline (2) is connected with a valve port of the deck valve (8), the other end of the liquid discharge pipeline (2) extends into the raffinate cabin (3), and a water storage bent pipe structure is formed in the raffinate cabin (3);
one end of the liquid discharge pipeline (2) close to the first plate valve (8) is respectively provided with a stop check valve (6) and a blowing and sucking assembly (7).
2. The chemical tanker deck raffinate system of claim 1, wherein: drainage pipeline (2) are including first fluid-discharge tube (201), second fluid-discharge tube (202) and U type standpipe (203) of difference sealing connection in proper order, wherein stop check valve (6) and set up between first fluid-discharge tube (201) and second fluid-discharge tube (202), and water storage return bend structure adopts U type standpipe (203), be provided with height control assembly (4) that are used for driving its delivery port to go up and down on U type standpipe (203).
3. The chemical tanker deck raffinate system of claim 2, wherein: the height adjusting assembly (4) comprises an electric telescopic rod (4a) fixedly arranged on a deck (1), a telescopic pipe (203a) is formed at a position, close to a vertical pipe of a water outlet, of the U-shaped water storage pipe (203), pipe fixing plates (4b) are fixedly arranged at two ends of the telescopic pipe (203a), a push rod of the electric telescopic rod (4a) is fixedly connected with the pipe fixing plate (4b) located above the electric telescopic rod, and the push rod of the electric telescopic rod (4a) is connected with the pipe fixing plate (4b) located below the electric telescopic rod in a sliding mode.
4. The chemical tanker deck raffinate system of claim 3, wherein: the upper portion is provided with air pressure sensor (5) that is used for detecting its interior atmospheric pressure in raffinate cabin (3), and air pressure sensor (5) will detect the interior atmospheric pressure of raffinate cabin (3) and feed back electric telescopic handle (4a) and be used for controlling the delivery port lift of U type standpipe (203).
5. The chemical tanker deck raffinate system of claim 1, wherein: the air blowing and inhaling component (7) comprises a second air duct (702), one end of the second air duct (702) is connected to the first liquid exhaust pipe (201), and the other end of the second air duct (702) penetrates out of the deck (1) and is provided with a first electromagnetic valve (703).
6. The chemical tanker deck raffinate system of claim 5, wherein: the air blowing and sucking component (7) further comprises an air pump (706), an air inlet and an air outlet of the air pump (706) are respectively connected with a first air duct (701) and a second air duct (702), the first air duct (701) and the second air duct (702) are communicated with each other through a first air duct (704), one end, close to the air pump (706), of the second air duct (702) is connected with a second air duct (708), a third electromagnetic valve (707) is arranged on the second air duct (708), a second electromagnetic valve (705) is arranged on the first air duct (704), and the first electromagnetic valve (703) is arranged on the second air duct (702) between the first air duct (704) and the second air duct (708).
7. The chemical tanker deck raffinate system of claim 1, wherein: and a fourth electromagnetic valve (9) is arranged at one end of the U-shaped water storage pipe (203) close to the second liquid discharge pipe (202).
8. The chemical tanker deck raffinate system of claim 1, wherein: the water outlet level of the U-shaped water storage pipe (203) is lower than the water inlet level of the first liquid drainage pipe (201).
CN202110917414.0A 2021-08-11 2021-08-11 Chemical oil tanker deck residual liquid system Pending CN113650728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110917414.0A CN113650728A (en) 2021-08-11 2021-08-11 Chemical oil tanker deck residual liquid system

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Application Number Priority Date Filing Date Title
CN202110917414.0A CN113650728A (en) 2021-08-11 2021-08-11 Chemical oil tanker deck residual liquid system

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Publication Number Publication Date
CN113650728A true CN113650728A (en) 2021-11-16

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1916426A (en) * 2006-07-03 2007-02-21 江苏迎浪科技集团有限公司 Intelligent pump set matched to new sewage treatment facility
CN102398672A (en) * 2010-09-07 2012-04-04 辛忠学 Pneumatic drainage system for ship cargo hold sewage well
KR20140084377A (en) * 2012-12-26 2014-07-07 대우조선해양 주식회사 Sewage treatment system and method of fixed type offshore structure
KR20150012709A (en) * 2013-07-26 2015-02-04 대우조선해양 주식회사 Wastewater discharge system of the ship
CN105198173A (en) * 2015-10-30 2015-12-30 山东航凯船舶科技有限公司 Horizontal full-automatic type domestic sewage treatment device for ships
KR101581322B1 (en) * 2014-09-29 2016-01-04 삼성중공업(주) Ship including draining unit
CN205440759U (en) * 2016-03-28 2016-08-10 江南造船(集团)有限责任公司 Ship sewage well sewage discharge system
CN207450163U (en) * 2017-11-04 2018-06-05 山东海翔游艇有限公司 A kind of waterway for facilitating draining with hatchcover junction for deck
CN110155298A (en) * 2019-05-30 2019-08-23 广船国际有限公司 Tanker deck sump oil water recovery structure
CN110482784A (en) * 2019-08-09 2019-11-22 南京盛航海运股份有限公司 A kind of Sewage from Ships processing system
CN111498005A (en) * 2020-04-17 2020-08-07 中船黄埔文冲船舶有限公司 Ship deck sewage discharge system
CN211921058U (en) * 2019-12-24 2020-11-13 烟台中诺机电一体化科技有限公司 Ship sewage treatment system

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1916426A (en) * 2006-07-03 2007-02-21 江苏迎浪科技集团有限公司 Intelligent pump set matched to new sewage treatment facility
CN102398672A (en) * 2010-09-07 2012-04-04 辛忠学 Pneumatic drainage system for ship cargo hold sewage well
KR20140084377A (en) * 2012-12-26 2014-07-07 대우조선해양 주식회사 Sewage treatment system and method of fixed type offshore structure
KR20150012709A (en) * 2013-07-26 2015-02-04 대우조선해양 주식회사 Wastewater discharge system of the ship
KR101581322B1 (en) * 2014-09-29 2016-01-04 삼성중공업(주) Ship including draining unit
CN105198173A (en) * 2015-10-30 2015-12-30 山东航凯船舶科技有限公司 Horizontal full-automatic type domestic sewage treatment device for ships
CN205440759U (en) * 2016-03-28 2016-08-10 江南造船(集团)有限责任公司 Ship sewage well sewage discharge system
CN207450163U (en) * 2017-11-04 2018-06-05 山东海翔游艇有限公司 A kind of waterway for facilitating draining with hatchcover junction for deck
CN110155298A (en) * 2019-05-30 2019-08-23 广船国际有限公司 Tanker deck sump oil water recovery structure
CN110482784A (en) * 2019-08-09 2019-11-22 南京盛航海运股份有限公司 A kind of Sewage from Ships processing system
CN211921058U (en) * 2019-12-24 2020-11-13 烟台中诺机电一体化科技有限公司 Ship sewage treatment system
CN111498005A (en) * 2020-04-17 2020-08-07 中船黄埔文冲船舶有限公司 Ship deck sewage discharge system

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Application publication date: 20211116