CN202860208U - High-pressure back flushing filter for ballast water processing system - Google Patents

High-pressure back flushing filter for ballast water processing system Download PDF

Info

Publication number
CN202860208U
CN202860208U CN 201220546761 CN201220546761U CN202860208U CN 202860208 U CN202860208 U CN 202860208U CN 201220546761 CN201220546761 CN 201220546761 CN 201220546761 U CN201220546761 U CN 201220546761U CN 202860208 U CN202860208 U CN 202860208U
Authority
CN
China
Prior art keywords
pressure
filter
water
water pipe
back flushing
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.)
Expired - Lifetime
Application number
CN 201220546761
Other languages
Chinese (zh)
Inventor
计明
曾晓燕
陆岚
马牧野
孙红波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI CYECO ENVIRONMENTAL TECHNOLOGY Co Ltd
Original Assignee
SHANGHAI CYECO ENVIRONMENTAL TECHNOLOGY 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 SHANGHAI CYECO ENVIRONMENTAL TECHNOLOGY Co Ltd filed Critical SHANGHAI CYECO ENVIRONMENTAL TECHNOLOGY Co Ltd
Priority to CN 201220546761 priority Critical patent/CN202860208U/en
Application granted granted Critical
Publication of CN202860208U publication Critical patent/CN202860208U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Abstract

The utility model provides a high-pressure back flushing filter for a ballast water processing system, which comprises a pollution discharge shaft. A filter cylinder is coaxially arranged outside the pollution discharge shaft, and the filter cylinder is internally provided with a coarse filter screen and a fine filter screen; a high-pressure water pipe is arranged on the pollution discharge shaft inside the filter cylinder; the outer sides of the coarse filter screen and the fine filter screen which are positioned on the high-pressure water pipe are provided with a high-pressure spray nozzle and a negative-pressure suction nozzle; a water inlet and a water outlet are arranged below the filter cylinder; a travel motor is connected with one end of the filter cylinder through a negative-pressure suction port cavity; a pollution discharge port is arranged below the negative-pressure suction port cavity; a high-pressure pump is arranged on the other end of the filter cylinder positioned on the pollution discharge shaft, and the high-pressure pump is connected with the water outlet and the high-pressure water pipe; a pressure difference transmitter is connected with the water inlet and the water outlet; and a controller is connected with the pressure difference transmitter, the travel motor and the high-pressure pump. The high-pressure back flushing filter provided by the utility model achieves good filtration effect through the filtration of two high-strength seawater corrosion-resisting stainless steel filter screens and further ensures the cleaning effect of the ballast water processing system by carrying out back flushing on the filter screens through a high-pressure back flushing device.

Description

A kind of high-pressure backwash filter for ballast water treatment system
Technical field
The utility model relates to a kind of high-pressure backwash filter for ballast water treatment system, belongs to the self-cleaning filter technical field of ship ballast water treatment system.
Background technology
Boats and ships are safe navigation at sea, need load a certain amount of ballast according to the Container Loading state of boats and ships and the stability of boats and ships self, and its effect is to guarantee that boats and ships have good stability, and boats and ships generally adopt seawater as ballast, are referred to as ballast water for ship.Yet Ballast Water is the offshore port seawater that boats and ships carry, and will be drained into during to bank in the marine site of bank state, and ballast water for ship is that the water biological species between different waters is propagated the condition of providing convenience.
Because ballast water for ship has stronger flowability and animal migration, so that the non-indigenous aquatic species kind arrives a large amount of migration and the invasions in bank basin for shipping, the marine ecology balance of heavy damage locality, thus cause the marine eco-environment, aquatic products economy and human health are caused serious threat.
Under this background; International Maritime Organization (IMO) has promulgated " about ballast water for ship and sediment monitoring and management contract " in 2004, requirements of convention whole world environmental protection foundation will classify one of ocean four large harm as because of the marine site cross pollution that boats and ships cause without control discharging ballast water for ship.For this reason, the pact mandatory provision all must not be sailed IMO member state harbour into to all foreign-going ships that this equipment is not installed in 2017, otherwise imposes sanction and punish by violating pact.
In numerous ballast water treatment technology, its simple design of self-cleaning filter and the safe and reliable to operation and continuous advantage such as big yield filtration are present application equipment more widely in Ship's Ballast System.Self-cleaning filter is used for the interception seawater than flood organism and deposit, improves the light transmittance of seawater, thereby improves the radiation response of seawater ultraviolet.Self-cleaning filter is when operation; when pressure reduction reaches setting value; or when reaching systemic presupposition scavenging period interval; in non-stop-machine situation; filter cleans screen pack automatically; with aquatic object and the deposit of clean deposition on screen pack, and all aquatic organisms and the deposit of filter interception be expelled back into former dry point, do not cause the strange land of non-indigenous aquatic species kind to shift.Automatic flushing device keeps the cleaning of screen pack, and still can carry out normal effectively operation when the high Sediment loads of self-cleaning, thereby has guaranteed the normal operation of Ship's Ballast System.
Self-cleaning filter is in cleaning the filter screen process, because filter screen is stopped up by aquatic object and deposit, usually adopt the method for suction nozzle negative pressure suction to clean, or clean with the method for brusher, but the cleaning performance of above two kinds of methods is limited, even it is unclean to cause easily deposit to clean, the consequence that causes filter normally to move continuously.
The utility model content
The technical problems to be solved in the utility model provides a kind of for the good high-pressure backwash filter of the cleaning performance of ship ballast water treatment system.
In order to solve the problems of the technologies described above, the technical solution of the utility model provides a kind of high-pressure backwash filter for ballast water treatment system, it is characterized in that: comprise the blowdown axle, cartridge filter is outside with being located in the blowdown axle, forward and backward interconnected coarse strainer and the fie screen of being respectively equipped with in the cartridge filter; High-pressure water pipe is located on the interior blowdown axle of cartridge filter, and coarse strainer and the fie screen outside is provided with high pressure nozzle and negative pressure suction nozzle on the high-pressure water pipe; The filter cylinder below is provided with water inlet and delivery port; The stroke motor is connected with cartridge filter one end by negative pressure suction inlet chamber, and below, negative pressure suction inlet chamber is provided with sewage draining exit; High-pressure pump is located at the cartridge filter other end on the blowdown axle, and high-pressure pump connects delivery port, high-pressure water pipe; Pressure difference transmitter connects water inlet and delivery port, and controller is connected with high-pressure pump with pressure difference transmitter, stroke motor.
Preferably, described fie screen is the seawater corrosionresisting stainless steel sintered meshwork of 50 microns of precision.
A kind of high-pressure backwash filter for ballast water treatment system that the utility model provides can guarantee under different working conditions, seawater enters self-cleaning filter by water inlet, through coarse strainer filtering larger particles impurity, enter again aquatic object in the further trap water of fie screen and tiny deposit, along with various aquatic organisms and deposit in the filter medium in the deposition of fie screen inboard, screen pack is blocked, advance, water outlet pressure reduction increases gradually, when pressure reduction reaches default definite value, the pressure difference transmitter that is connected in intake-outlet just passes to controller with the pressure difference signal that detects, controller starts the suction of suction nozzle negative pressure and backwash high pressure pump automatically, transmission device drives the blowdown axle that suction nozzle is housed and does rotation and horizontal back and forth movement in the filter screen inboard at this moment, simultaneously, in the filter screen outside, the high pressure back purge system washes screen pack, and be corresponding relation with suction nozzle, do not interrupting normally producing under the prerequisite of water, only crossed the seawater that filters by sub-fraction, screen pack is carried out the high pressure backwash, high pressure backwash seawater sees through filter screen, sucked rapidly the blowdown axle together with the aquatic organism that peels off from filter screen and deposit by suction nozzle, discharged by sewage draining exit at last.
The utility model provides a kind of high-pressure backwash filter for ballast water treatment system has following beneficial effect compared to existing technology:
(1) good filtration effect, adopt the filtration of thick, thin twice high strength seawater corrosionresisting stainless steel screen pack, fine impurities in filtering larger particles impurity and the seawater, thus reach the standard of " ballast water for ship and sediment monitoring and management international convention " defined.
(2) the high pressure back purge system is arranged, do not interrupting normally producing under the prerequisite of water, the seawater by sub-fraction has been filtered carries out backwash by the high pressure back purge system to screen pack, has further guaranteed the filter effect of self-cleaning filter.
A kind of high-pressure backwash filter for ballast water treatment system that the utility model provides has overcome the deficiencies in the prior art, filtration by thick, thin twice high strength seawater corrosionresisting stainless steel screen pack, good filtration effect, by the high pressure back purge system screen pack is carried out backwash simultaneously, further guaranteed the cleaning performance of ballast water treatment system.
Description of drawings
A kind of high-pressure backwash filter schematic diagram for ballast water treatment system that Fig. 1 provides for the utility model;
Description of reference numerals
1-stroke motor; 2-negative pressure suction inlet chamber; The 3-coarse strainer; The 4-high pressure nozzle; 5-negative pressure suction nozzle; The 6-high-pressure water pipe; The 7-cartridge filter; The 8-sewage draining exit; The 9-water inlet; The 10-fie screen; The 11-delivery port; The 12-high-pressure pump; 13-blowdown axle.
The specific embodiment
For the utility model is become apparent, hereby with a preferred embodiment, and cooperate accompanying drawing to be described in detail below.
A kind of high-pressure backwash filter schematic diagram for ballast water treatment system that Fig. 1 provides for the utility model, described a kind of high-pressure backwash filter for ballast water treatment system comprises blowdown axle 13, cartridge filter 7 coaxial blowdown axle 13 outsides that are contained in, coarse strainer 3 and fie screen 10 are housed in the cartridge filter 7, coarse strainer 3 is front, fie screen 10 is rear, and coarse strainer 3 is connected with fie screen by the flange connection, is connected with cartridge filter 7 by bolt again.High-pressure water pipe 6 is contained on the cartridge filter 7 interior blowdown axles 13, and high pressure nozzle 4 and negative pressure suction nozzle 5 are equipped with in coarse strainer 3 and fie screen 10 outsides on the high-pressure water pipe 6; Filter cylinder 7 belows have water inlet 9 and delivery port 11; Stroke motor 1 is connected with cartridge filter 7 one ends by negative pressure suction inlet chamber 2, and 2 belows, negative pressure suction inlet chamber have sewage draining exit 8; High-pressure pump 12 is contained in cartridge filter 7 other ends on the blowdown axle 13, and high-pressure pump 12 connects delivery port 11; Pressure difference transmitter connects water inlet 9 and delivery port 11, and controller and pressure difference transmitter, stroke motor 1 are connected with high-pressure pump and are connected.
Stroke motor 1, be arranged on a kind of transmission device of negative pressure suction inlet chamber 2 ports, be used for to drive the blowdown axle 13 that negative pressure suction nozzle 5 is housed and do rotation and horizontal back and forth movement in the filter screen inboard, suction is filtered adheres to aquatic object and deposit on the thin screen pack.
Negative pressure suction inlet chamber 2, be arranged on a kind of negative pressure straw and blowdown apparatus on the filtration barrel body, be used in the sea water filter process, by high pressure backwash seawater, draw blocked aquatic object and deposit on the screen pack, thus guarantee filter 7 normally, effectively work.
Coarse strainer 3 is the screen packs for elimination seawater larger particles impurity.
High pressure nozzle 4 is arranged on fie screen 10 outsides, and is connected with high-pressure water pipe 6, is used for the hydraulic spray to the fie screen 10 inject high pressure globules.
Negative pressure suction nozzle 5 is arranged on the 2 blowdown axles of negative pressure suction inlet chamber, is used for drawing blocked aquatic object and sedimental suction nozzle on the screen pack.
High-pressure water pipe 6 is to connect between high pressure nozzle 4 and the high-pressure pump 12, is used for the water pipe to high pressure nozzle 4 conveying high-pressure backwash seawater.
Cartridge filter 7 is comprised of the 316L stainless steel, is used for depositing the tubular type object that needs filtering sea.
Sewage draining exit 8 is mounted in 2 lower ends, negative pressure suction inlet chamber, is used for larger particles impurity and various aquatic object and sedimental outlet that discharging is filtered.
Water inlet 9 is arranged on cartridge filter 7 lower ends, and seawater enters the main entrance of filter.
Fie screen 10 is a kind of high strength seawater corrosionresisting stainless steel sintered meshworks that adopt 50 microns of precision, is used for holding back the screen pack of seawater fine impurities.
Delivery port 11 is arranged on cartridge filter 7 lower ends, and the seawater that process is filtered thus mouth is transfused to the automatic vent type self-cleaning filter device seawer outlet that ultra violet sterilizer is sterilized again.
High-pressure pump 12 is arranged on cartridge filter 7 outsides, is connected in high-pressure water pipe 6 and filter delivery port 11, is not interrupting normally producing under the prerequisite of water, and the seawater by sub-fraction has been filtered carries out the high pressure backwash to screen pack 7.
During work, undressed seawater is entered in the tubular airtight cavity cartridge filter 7 that is arranged on high pressure back-flushing filtering device bottom, is comprised of the 316L stainless steel by water inlet 9, seawater advanced the impurity that coarse strainer 3 assemblies filter larger particles, again filtered by the fie screen 10 that the high strength seawater corrosionresisting stainless steel of 50 microns of precision sinters into through the seawater of coarse filtration, filtering adheres to aquatic object and the deposit on the thin screen pack 10, and clear water is inputted again ultraviolet disinfection of ultra violet sterilizers by the delivery port 11 that is arranged on high pressure back-flushing filtering device bottom at last.
In filter process, the aquatic object and the deposit that adhere on the fie screen 10 are piled up gradually, fie screen 10 is blocked, water-in and water-out pressure reduction increases gradually, when pressure reduction reaches default definite value, the pressure difference transmitter that is connected in entery and delivery port just passes to controller with the pressure difference signal that detects, and controller starts high-pressure pump 12 automatically, carries out backwash from filter delivery port 11 and by high-pressure water pipe 6 by 4 pairs of fie screens of high pressure nozzle 10.Stroke motor 1 drives the blowdown axle that negative pressure suction nozzle 2 is housed and does rotation and horizontal back and forth movement in fie screen 10 inboards at this moment, high pressure nozzle 4 is corresponding relation with negative pressure suction nozzle 2, do not interrupting normally producing under the prerequisite of water, high-pressure pump 12 is by the sub-fraction seawater, fie screen 10 is carried out the high pressure backwash, backwash water sees through fie screen 10, together with the high-pressure pump 12 of peeling off from fie screen 10 by negative pressure suction nozzle 2 rapid negative suction suction inlet chambeies 2, by the sewage draining exit 8 of device in 2 lower ends, negative pressure suction inlet chamber, be expelled back into former dry point by sewage draining exit 8 at last.In whole cleaning process, it is uninterrupted that filter filters work normally, thereby guaranteed the filter effect of self-cleaning filter in the whole ballast system, reaches the standard of " about ballast water for ship and sediment monitoring and management contract " defined.

Claims (2)

1. high-pressure backwash filter that is used for ballast water treatment system, it is characterized in that: comprise blowdown axle (13), cartridge filter (7) is with being located in blowdown axle (13) outside, forward and backward interconnected coarse strainer (3) and the fie screen (10) of being respectively equipped with in the cartridge filter (7); High-pressure water pipe (6) is located on the interior blowdown axle of cartridge filter (7) (13), and the upper coarse strainer (3) of high-pressure water pipe (6) and fie screen (10) outside are provided with high pressure nozzle (4) and negative pressure suction nozzle (5); Filter cylinder (7) below is provided with water inlet (9) and delivery port (11); Stroke motor (1) is connected with cartridge filter (7) one ends by negative pressure suction inlet chamber (2), and below, negative pressure suction inlet chamber (2) is provided with sewage draining exit (8); High-pressure pump (12) is located at upper cartridge filter (7) other end of blowdown axle (13), and high-pressure pump (12) connects delivery port (11), high-pressure water pipe (6); Pressure difference transmitter connects water inlet (9) and delivery port (11), and controller is connected 12 with pressure difference transmitter, stroke motor (1) with high-pressure pump) be connected.
2. a kind of high-pressure backwash filter for ballast water treatment system as claimed in claim 1 is characterized in that: described fie screen (10) is the seawater corrosionresisting stainless steel sintered meshwork of 50 microns of precision.
CN 201220546761 2012-10-23 2012-10-23 High-pressure back flushing filter for ballast water processing system Expired - Lifetime CN202860208U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220546761 CN202860208U (en) 2012-10-23 2012-10-23 High-pressure back flushing filter for ballast water processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220546761 CN202860208U (en) 2012-10-23 2012-10-23 High-pressure back flushing filter for ballast water processing system

Publications (1)

Publication Number Publication Date
CN202860208U true CN202860208U (en) 2013-04-10

Family

ID=48026968

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220546761 Expired - Lifetime CN202860208U (en) 2012-10-23 2012-10-23 High-pressure back flushing filter for ballast water processing system

Country Status (1)

Country Link
CN (1) CN202860208U (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103316520A (en) * 2013-07-10 2013-09-25 上海船研环保技术有限公司 Labyrinth type filter net synchronous high-pressure backwashing and self-cleaning filter for ballast water treatment
CN103691177A (en) * 2013-12-26 2014-04-02 云南晨怡弘宇环保科技有限公司 Metal film type pressure differential filter
CN104436787A (en) * 2014-12-09 2015-03-25 重庆甘泰环保设备有限公司 Breeding wastewater dreg and liquid separator convenient for washing filter screen
CN105592905A (en) * 2013-11-07 2016-05-18 三浦工业株式会社 Ballast water treatment device
CN105858997A (en) * 2016-05-23 2016-08-17 南通海景船舶压载水处理系统股份有限公司 Opened physical ballast water management system
CN109368888A (en) * 2018-10-18 2019-02-22 九江精密测试技术研究所 A kind of modularization ballast water treatment plant
CN109368889A (en) * 2018-10-18 2019-02-22 九江精密测试技术研究所 A kind of integration ballast water treatment plant
CN109499147A (en) * 2018-12-21 2019-03-22 哈尔滨工程大学 A kind of horizontal ballast water filtering device with pleated type strainer
CN110465127A (en) * 2019-08-08 2019-11-19 泰兴市光华石油化工机械制造有限公司 A kind of backwashing pipeline filter
CN111228873A (en) * 2020-02-17 2020-06-05 上海交通大学 Ballast water filtering device with backwashing and electric brush collaborative self-cleaning function
CN112915640A (en) * 2021-02-09 2021-06-08 上海交通大学 Cyclone filtering type ballast water filtering device
CN113087238A (en) * 2021-03-24 2021-07-09 南通中星海洋科技有限公司 Ship ballast water purification system based on plasma jet technology
CN113262534A (en) * 2021-03-28 2021-08-17 何刚华 Energy-concerving and environment-protective device for chemical production
US11174877B2 (en) 2017-02-09 2021-11-16 Natural Ocean Well Co. Submerged reverse osmosis system
CN115282667A (en) * 2022-06-27 2022-11-04 湖南金凯循环科技有限公司 Fine particle's precision filter in filtration nickel cobalt manganese acid solution
CN115591301A (en) * 2022-12-13 2023-01-13 威海中远海运重工科技有限公司(Cn) Filter for ship ballast water management system and antifouling method

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103316520A (en) * 2013-07-10 2013-09-25 上海船研环保技术有限公司 Labyrinth type filter net synchronous high-pressure backwashing and self-cleaning filter for ballast water treatment
US10058806B2 (en) 2013-11-07 2018-08-28 Miura Co., Ltd. Ballast water treatment device
CN105592905A (en) * 2013-11-07 2016-05-18 三浦工业株式会社 Ballast water treatment device
CN105592905B (en) * 2013-11-07 2018-06-29 三浦工业株式会社 Ballast water treatment plant
CN103691177A (en) * 2013-12-26 2014-04-02 云南晨怡弘宇环保科技有限公司 Metal film type pressure differential filter
CN104436787A (en) * 2014-12-09 2015-03-25 重庆甘泰环保设备有限公司 Breeding wastewater dreg and liquid separator convenient for washing filter screen
CN105858997B (en) * 2016-05-23 2019-04-19 易俐特自动化技术股份有限公司 A kind of physically Ballast Management system of opening
CN105858997A (en) * 2016-05-23 2016-08-17 南通海景船舶压载水处理系统股份有限公司 Opened physical ballast water management system
US11326625B2 (en) 2017-02-09 2022-05-10 Natural Ocean Well Co. Brine dispersal system
US11846305B2 (en) 2017-02-09 2023-12-19 Natural Ocean Well Co. Submerged reverse osmosis system
US11174877B2 (en) 2017-02-09 2021-11-16 Natural Ocean Well Co. Submerged reverse osmosis system
CN109368889A (en) * 2018-10-18 2019-02-22 九江精密测试技术研究所 A kind of integration ballast water treatment plant
CN109368888A (en) * 2018-10-18 2019-02-22 九江精密测试技术研究所 A kind of modularization ballast water treatment plant
CN109499147A (en) * 2018-12-21 2019-03-22 哈尔滨工程大学 A kind of horizontal ballast water filtering device with pleated type strainer
CN110465127A (en) * 2019-08-08 2019-11-19 泰兴市光华石油化工机械制造有限公司 A kind of backwashing pipeline filter
CN111228873A (en) * 2020-02-17 2020-06-05 上海交通大学 Ballast water filtering device with backwashing and electric brush collaborative self-cleaning function
CN111228873B (en) * 2020-02-17 2021-04-27 上海交通大学 Ballast water filtering device with backwashing and electric brush collaborative self-cleaning function
CN112915640A (en) * 2021-02-09 2021-06-08 上海交通大学 Cyclone filtering type ballast water filtering device
CN113087238A (en) * 2021-03-24 2021-07-09 南通中星海洋科技有限公司 Ship ballast water purification system based on plasma jet technology
CN113262534A (en) * 2021-03-28 2021-08-17 何刚华 Energy-concerving and environment-protective device for chemical production
CN115282667A (en) * 2022-06-27 2022-11-04 湖南金凯循环科技有限公司 Fine particle's precision filter in filtration nickel cobalt manganese acid solution
CN115282667B (en) * 2022-06-27 2023-10-13 湖南金凯循环科技股份有限公司 Precise filter for filtering fine particles in nickel cobalt manganate solution
CN115591301A (en) * 2022-12-13 2023-01-13 威海中远海运重工科技有限公司(Cn) Filter for ship ballast water management system and antifouling method

Similar Documents

Publication Publication Date Title
CN202860208U (en) High-pressure back flushing filter for ballast water processing system
US20070246424A1 (en) Process For Producing Ship Ballast Water, Ship Ballast Water Producing Apparatus And Use Thereof
CN203755276U (en) Shipborne micro-filtration algae removal system
CN107581136A (en) Prawn culturing recirculated water solid-liquid separation system
CN203360216U (en) Self-cleaning ultrasonic MBR (membrane bioreactor) system
CN101935127A (en) Ship ballast water comprehensive treatment system
CN104671594B (en) A kind of inland navigation craft sanitary sewage sequence criticizes biochemical processing method
CN203269706U (en) Ship ballast water treatment device based on filtration and ultraviolet sterilization
CN203090567U (en) Automatic non-reverse high-pressure back flushing filtration device
CN201857322U (en) Comprehensive treatment system for ballast water of ship
CN111592178A (en) Comprehensive treatment device and method for near-shore water body blue algae
CN206767825U (en) A kind of full-automatic river filtration, purification system
CN202860227U (en) Automatic exhaust type self-cleaning filtering device
CN203235310U (en) Kieselguhr precoating forward and backward blowing filtration device
CN2764764Y (en) Small-sized sea water sea-water desalinator
CN205133284U (en) Industrial wastewater treatment equipment
CN204569648U (en) A kind of inland navigation craft sanitary sewage sequence criticizes biochemical treatment apparatus
CN202951316U (en) Automatic check self-cleaning filter
CN208394956U (en) A kind of seawater treatment system
CN102350111B (en) High-efficiency industrial wastewater filter
CN205886373U (en) From cleaning tube way filter
CN103316520A (en) Labyrinth type filter net synchronous high-pressure backwashing and self-cleaning filter for ballast water treatment
CN200985288Y (en) Integral oil water separator for boat
CN207411266U (en) Prawn culturing recirculated water solid-liquid separation system
CN202945109U (en) Vehicle-mounted continuous wastewater treatment system and wastewater tanks thereof

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20130410

CX01 Expiry of patent term