CN209475727U - A kind of horizontal ballast water filtering device with pleated type strainer - Google Patents

Abstract

The purpose of this utility model is to provide a kind of horizontal ballast water filtering devices with pleated type strainer, including cylinder, front shroud, back shroud, filter core, hollow blowdown axis, blowdown room, front shroud is fixed on the front end of cylinder, back shroud is fixed on the rear end of cylinder, filter core bayonet is respectively arranged in the front-end and back-end of inner barrel, filter core is mounted between the filter core bayonet of front-end and back-end, water inlet is set on front shroud, water outlet is set on cylinder, a part of hollow blowdown axis stretches in cylinder from back shroud, rest part is located at outside back shroud and is fixed by the shaft installing port on back shroud, blowdown room is arranged in the end of hollow blowdown axis, sewage pipe is installed below blowdown room, hollow blowdown axis stretches out dirt sucking tube, the end of dirt sucking tube is installed by sewage absorpting heat.The utility model occupied area is small, can effectively solve the problem that filtering generate obstructing problem, it is good to suspension animals and plants filter effect in ballast water, it can be achieved that filtering and backwash at the same run, shortening the cycle of operation.

Description

A kind of horizontal ballast water filtering device with pleated type strainer

Technical field

The utility model relates to a kind of water treatment facilities, specifically apparatus for treating ship ballast water.

Background technique

" Management of Ships ' Ballast Water and sediment monitoring and management contract " hereinafter referred to as first, " compressive effect " text It points out, " ballast water " refers to that ship is control drinking water, trim, heel, stability or stress and the water to take on board and suspension therein Object.And " deposit " then refers to from the substance being deposited in ship in ballast water.When ship loads onto ballast water, it has also been loaded onto Substance in ballast water.Include solid matter in mixed water or shallow water, when these substances enter ballast tank, bottom will be deposited in As " deposit ", and it is likely to become the breeding ground that a variety of aquatic lifes live and live.From the point of view of two above definition, we are not Hardly possible discovery, is arbitrarily discharged in bring invasive plants this problem, the ballast water described in us is exactly in fact from ballast water In the substance including deposit.

Ship sometimes has to be adjusted the floading condition of ship during normal/cruise and operation, guarantees ship The normal/cruise of oceangoing ship and operation, string just have to realize by ballast for cruising.The effect of ballast for cruising mainly has following Aspect:

1 keeps the drinking water of certain depth to be unlikely to topple in ship in ballast；

2 can also use ballast and adjusting of the ballast water between each ballast tank in the state of ship loading, determine certain Trim or trim on even keel (front and back trim be 0), guarantee ship in specific waters smoothly, safe navigation；

3 ice breakers quickly adjust the ballast water at bow tail both ends by using powerful water pump, so that bow tail Both ends carry out height and movement, cut off the ice sheet on sea, carry out icebreaking service, this is also the working principle of ice breaker.

According to statistics, the cargo in the whole world 80% is by Shipping.Ballast water for ship is modern foreign-going ship navigation peace The guarantee operated entirely and efficiently, ship can be by being pressed into or being discharged pressure in navigation, handling, entering and leaving port, the different operating conditions such as berth The balance and stability that water keeps ship is carried, is played an important role to the safe navigation of ship.

However, can similarly bring very big harm, most while ballast water plays great function in Shipping Apparent harm is exactly the destruction to marine environment, and during the general plumbing of ballast water, ship unloads cargo in harbour Afterwards, in order to keep drinking water appropriate, ballast water is inputted in harbour, keeps ballast trim to navigate by water to another harbour and freights, in order to Enough cargos can be loaded, the ballast water in ballast tank must be discharged for ship, in this way, ship is in transport cargo and passenger While, the ballast water of unloading ships harbour sea area input and deposit are also discharged into loading terminal sea area.

Containing a large amount of biologies in ballast water for ship, including planktonic organism, microorganism and bacterium, pathogen are even small-sized The ovum of fish and various species, the young or spore, deposit contain bioclastic, particulate organic matter, biological sporangiocyst, insoluble Property the biologies such as substances such as silicate, new living maritime space is also discharged into it, robs local biological existence resource, destroys local sea The foreign ecological balance, endangers fishery resources, adversely affects safely to public health.

2 months 2004, the Ballast Management international conference that International Maritime Organization (IMO) holds passed through " international shipping ballast Water and sediment monitoring and management contract ".The pact includes 22 clauses and a regular supplemental provisions " control management ballast water for ship With deposit to prevent, reduce and eliminate unwanted aquatic organism and pathogen transfer rule ", it is intended to prevent ballast water for ship discharge from drawing The foreign term risen, environment caused by pathogen is propagated, human health, property and resource aspect damage." pact " regulation, Ballast water treatment equipment must be installed from 2009 Nian Qixin shipbuilding oceangoing ships, and spot ship is implemented to trace, it is all remote by 2017 Foreign ship must install ballast water treatment equipment.Otherwise, IMO member state harbour cannot be driven into after pact comes into force, and violate pact Sanction and punishment will be faced.This year September 8 days, Finland ratifies the pact, so that signatories to a treaty, up to 52, merchant ship gross tonnage reaches the world The 35.14% of merchant ship gross tonnage meets the 35% minimum effective term of pact.So far, " compressive effect " was in September 8 in 2017 Day is formally effective.Now as Panama becomes the country of the 53rd approval Ballast Management pact, ratifying state counts merchant ship ton Position has reached more than half of global merchant tonnage.

Due to coming into force for pact, it is desirable that the ship part built after 2009 need to reach D2 standard, build after 2016 The ship made all need to reach D2 standard just and can enter other country harbour.Have 53 for amounting to 53.28% merchant ship gross tonnage at present International compressive effect is added in country, which has reached effective term, and in the formally effective implementation on the 8th of September in 2017.

On October 22, local time in 2018, Chinese Minister British Embassy represent Chinese Government formally to International Maritime Organization Secretary-general Lin Jize submits China and " Management of Ships ' Ballast Water in 2004 and sediment monitoring and management contract " is added, and " pact " will Formally effective to China on January 22nd, 2019, therefore, research and development ballast water treatment equipment will make the marine cause in China Tremendous contribution.

Show 7 years~8 years after the implementation of IMO pact according to associated mechanisms statistics, the whole world there will be about 70,000 merchant ships to need to carry out Ballast water treatment system transformation or installation, however ballast system is currently under development phase, practical application experience not at It is ripe.

Currently, the ship ballast water treatment system for passing through certification is physics and the chemistry side used on two kinds or two kinds mostly Method carrys out Treatment of Ships'Ballast Water, and different processing systems all haves the advantages that respective and deficiency, and due to each sea area in the whole world Water quality condition and marine organisms status difference are very big, and there are no any ballast water treatment technology and equipments to be suitable for so far Most of sea area and ship, the system how to select security performance highest, treatment effeciency best for ship is ship enterprise Problem.

Filter currently on the market, a kind of ballast water filter application number disclosed in Chinese patent literature 201520424042.8, which uses different single layer filter cores, by changing the structure type of filter element, accounts for filter Ground area reduces can increase filtering traffic simultaneously, but its back-purge system and dirty resistance problem are not solved effectively, Therefore after long-play, filter screen is easy blocking, and backwash effect is bad, and filter effect is deteriorated.

Summary of the invention

The purpose of this utility model is to provide enhancing filter effect and it can be improved the reduction filtering of sewage backwash efficiency A kind of horizontal ballast water filtering device with pleated type strainer of dirt resistance.

Purpose of the utility model is realized as follows:

A kind of horizontal ballast water filtering device with pleated type strainer of the utility model, it is characterized in that: including cylinder, preceding Cover board, back shroud, filter core, hollow blowdown axis, blowdown room, front shroud are fixed on the front end of cylinder, and back shroud is fixed on cylinder Rear end, filter core bayonet is respectively arranged in the front-end and back-end of inner barrel, and filter core is mounted on the filter core bayonet of front-end and back-end Between, filter core and cylinder inboard wall are arranged water inlet, water outlet are arranged on cylinder with water space is filtered out on front shroud, front end Water inlet buffer area is constituted between filter core bayonet and front shroud, space constitutes filtering area, a part of hollow blowdown axis where filter core It stretches in cylinder, and is located in filtering area space from back shroud, the rest part of hollow blowdown axis is located at outside back shroud simultaneously It is fixed by the shaft installing port on back shroud, blowdown room is arranged in the end of hollow blowdown axis, sewage pipe is installed below blowdown room, Hollow blowdown axis in filtering area space stretches out dirt sucking tube, and sewage absorpting heat is installed in the end of dirt sucking tube.

The utility model can also include:

1, blowdown room connects driving motor by shaft coupling connection traversing mechanism, rotating mechanism.

2, the pressure sensor of detection inflow and outflow pressure difference is installed, pressure sensor detection pressure difference reaches outside cylinder To after setting value, driving motor work is counter to be cleaned.

3, the filter core includes four layers from outside to inside, and outermost layer is the first protective layer, and the second layer is effective filter layer, third Layer is the second protective layer, and the 4th layer is supporting layer.

4, the first protective layer and the second protective layer and supporting layer are drum type brake plane filter screen, and effective filter layer is The pleated type filter screen of cylinder.

5, the pleated mode of pleated type filter screen is longitudinal folding, folded wave crest and trough along tubular axis direction Vertical with tubular axis, the trough circumference being consequently formed is parallel with the direction of rotation of rotating mechanism consistent, and folding mode is V-type folding Folded, folding angle is 3 ° -4 °.

6, the first protective layer and the second protective layer filtering accuracy are 100-150 μm, and effective filter layer precision is 30-50 μm, Supporting layer filtering accuracy is 300-500 μm.

7, water outlet installs check-valves.

The advantage of the utility model is: the utility model by setting water inlet end buffer area, can be effectively prevented into Impact force caused by instant water flow is excessive reduces impact；By the way that end check-valves is arranged, the shadow of pump-stopping water hammer can be eliminated It rings, increases the operation stability of system, extend the service life of equipment.All detachable by setting shell both ends, filter core is fixed Mode is simple to operation, therefore can replace different filter cores according to different usage scenarios or filtering requirement, keeps this practical new Type usable range is more extensive；Filter core uses folded form strainer, identical compared with outer diameter and the identical plane cylinder filter core of height Volume there is bigger filter area, enhance the filtration flux in the unit time, improve filter efficiency, while filter core Folding mode uses V-type folding mode, has certain strength support, the service life of the filter core of enhancing, the folding folding of filter core The bus of line and filter core is mutually perpendicular to, and the trough circumference being consequently formed and the operation direction of rotation of back-purge system are parallel consistent, When therefore reducing due to backwash, the dirt sucking tube rotation drive water flow of back-purge system encounters transverse direction along cylinder circle rotation Fold rib and caused by turbulent motion, reduce water flow impact pressure when backwash, at the same water flow can along fold trough into Row circular motion can more effectively utilize the tacky quality of water by trough inner filter media impurity with the equidirectional movement of water flow And then be mingled with carrying and go out, backwash effect is improved, keeps system operation more stable, but also filtering and backwashing while carrying out Without influencing operation operation, runing time is shortened for the handling ballast water of ship.Utility model device treated effect Meet " control management ballast water for ship and deposit are regular to prevent, reduce and eliminate unwanted aquatic organism and pathogen transfer " the D-2 item regulation.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is filter element number of plies structural schematic diagram；

Fig. 3 is the first protective layer of filter element and the second protective layer structure schematic diagram；

Fig. 4 is the effective filtering layer structure schematic diagram of filter element；

Fig. 5 is that filter element supports schematic diagram of a layer structure.

Specific embodiment

It illustrates with reference to the accompanying drawing and the utility model is described in more detail:

In conjunction with Fig. 1-5, the utility model is a kind of horizontal ballast for cruising water filter with pleated type filter screen, including Horizontal cylinder filter cylinder 1, the round front shroud 2 and back shroud 3 at 1 shell both ends of cylinder, filter core 4, back-purge system, Driving motor 5, rotating mechanism 6, shaft coupling 7, pressure sensor 8.Front shroud 2 is equipped with water inlet 9, and setting turns on the outside of back shroud 3 Filter core bayonet 11, front shroud 2 and 3 mounting axis position of back shroud and 1 axial location weight of cylinder is arranged in axis installing port 10, inside Setting is closed, front shroud 2 and back shroud 3 are all made of bolt 24 and are fixedly connected with cylinder 1.1 shell lower end of cylinder is provided with water outlet 12, it is divided into inside cylinder 1 into water buffer area 13 and filtering area 14, the buffer area 13 that intakes is communicated with filtering area 14, water inlet buffer area 13 are separated with filtering area 14 by the inwardly protruded bayonet 15 of 1 circumferential direction inside of cylinder, are equipped with circle inside filtering area 14 Cylinder filter core 4,4 axis of filter core are overlapped setting with 1 axis of cylinder, and 4 one end of filter core is fixed by bolt 16 by 14 bayonet 15 of filtering area, The other end is fixed by 3 inside bayonet 11 of back shroud, and filter core 4 filters out water space 17 with certain with 1 inner wall of cylinder.Filtering area Hollow blowdown axis 18 is installed inside 14, blowdown axis 18 it is closed at one end, the other end is solid by 3 shaft installing port 10 of back shroud Fixed, hollow 18 axis of blowdown axis is overlapped installation with tubular axis, is connected with 1 outside rotating mechanism 6 of cylinder by shaft coupling 7, is driven Dynamic motor 5 is connect with rotating mechanism 6, and the hollow rotation of blowdown axis 18 is driven to carry out back-flushing operation, and direction of rotation is rotation counterclockwise Turn, rotation speed can be adjusted according to filtering traffic by electric cabinet.Dirt sucking tube 19, dirt sucking tube are installed on hollow blowdown axis 18 19 front ends are equipped with rectangle sewage absorpting heat 20, and sewage absorpting heat 20 is parallel to the setting of 1 axis of cylinder, and sewage absorpting heat 20 is equipped with bristle 21, inhale Dirty pipe 19 is cylinder, and setting angle angle between adjacent dirt sucking tube 19 two-by-two is 180 °, and mounting distance is that sewage absorpting heat 20 is long Degree, mounting means are to be threadedly coupled.Pressure sensor 8 is installed outside cylinder 1, Inlet and outlet water pressure difference value reaches setting value When, automatic starting backwash motor, back-purge system is started to work, and the impurity that filtering is blocked in strainer is removed.Outside cylinder 1 Hollow blowdown axis 18 on be provided with blowdown room 22, sewage pipe 23 is installed below blowdown room 22.

The form of the filter core 4 of the utility model is cylindrical shape, and the 4 filter screen number of plies of filter core is 4 layers, wherein outermost layer the One protective layer 25, the second layer are effective filter layer 26, and third layer is the second protective layer 27, and the 4th layer is supporting course 28.4 layers of filtering Net is all made of 316L stainless steel material, has certain corrosion-resistant and impact resistance, the first protective layer 25 and the second protective layer 27 and supporting layer 28 be drum type brake plane filter screen, effective filter layer 26 is the pleated type filter screen of drum type brake, folded form For strainer compared with outer diameter and the identical plane filter core of height, identical volume has bigger filter area, enhances unit Filtration flux in time improves filter efficiency, and the first protective layer 25 is identical with 27 filtering accuracy of the second protective layer, while its Filtering accuracy is greater than effective 26 precision of filter layer, and 28 filtering accuracy of supporting course is much larger than the first protective layer 25 and the second protective layer 27 filtering accuracies, specifically, the first protective layer 25 and 27 filtering accuracy of the second protective layer are 100-150 μm, effective filter layer 26 Precision is 30-50 μm, and 28 filtering accuracy of supporting course is 300-500 μm, and the multiple filtration net of different filtering accuracy compositions is not only The large particulate matter not removed in pretreatment can be removed, while can reduce the load of effective filter layer, makes the use of filter core Longer life expectancy is run more stable.The pleated effective filter screen 26 of type, pleated mode are, folding longitudinal folding along tubular axis direction The wave crest and trough of poststack are vertical with tubular axis, and the operation direction of rotation of the trough circumference being consequently formed and back-purge system is flat Row is consistent, therefore when reducing due to backwash, the dirt sucking tube rotation of back-purge system drive water flow along cylinder circle rotation Encounter laterally folded rib and caused by turbulent motion, reduce water flow impact pressure when backwash, while water flow can be along folding Folded trough carries out circular motion, can be more effectively same with water flow by trough inner filter media impurity using the tacky quality of water Direction moves and then is mingled with carrying and goes out, and improves backwash effect.Folding mode is V-type folding, and folding angle is 3 ° -4 °. Using V-type folding mode, there is certain strength support, the service life of the filter core of enhancing.

The course of work of the utility model:

Raw water enters buffer area buffering by water inlet, to prevent the excessive moment impact caused to strainer of transient flow amount, Destroy strainer, raw water enters the inside of filtering area filter core behind buffer area, from filter core inside to outside filter core into Row filtering, impurity are trapped within the inside of filter element filtering layer, and water after filter is pooled to water outlet by the gap between filter core and cylinder inner wall Mouth discharge.

With accumulation of the various pollutants on the inside of strainer in filter medium, filtration channel is blocked, intake-outlet pressure difference It gradually increases, can when pressure difference reaches pre-set value while also be carried out by the time presetting, be transmitted to by pressure sensor Electronic control unit starting backwash motor, drives 360 ° of hollow blowdown axis to rotate counterclockwise into row back-flushing operation, rotation speed can It is adjusted according to filtering traffic by electric cabinet.

Water (flow) direction caused by as the folding mode of filter core trough direction being rotated with backwash is consistent, can make to inhale Bristle on dirty head can clean the impurity trapped at gap, while water flow can substantially arrive at the gap depths for folding trough, The impurity trapped in crack can be effectively removed, takes impurity with water flow out of, since the effect impurity of negative pressure is by sewage absorpting heat It is drawn into dirt sucking tube, the blowdown room outside cylinder is pooled to via hollow sewage pipe, is discharged by sewage pipe.One backwash stroke Afterwards, pressure difference reduces, and each member reset, system reenters normal operating condition.

The utility model water outlet installs check-valves, prevents from stopping pressure difference suddenly being set as 0.05MPa being advisable.The knot of filter core Configuration formula and back-purge system cooperate, and have occupied area small, structure is simple, easy to maintain, stable, treatment effect It is good, the cycle of operation can be shortened.

Claims (10)

1. a kind of horizontal ballast water filtering device with pleated type strainer, it is characterized in that: include cylinder, front shroud, back shroud, Filter core, hollow blowdown axis, blowdown room, front shroud are fixed on the front end of cylinder, and back shroud is fixed on the rear end of cylinder, cylinder Filter core bayonet is respectively arranged in internal front-end and back-end, and filter core is mounted between the filter core bayonet of front-end and back-end, filter core and cylinder Internal wall, which has, filters out water space, and water inlet is arranged on front shroud, water outlet, the filter core bayonet and front cover of front end are arranged on cylinder Water inlet buffer area is constituted between plate, space constitutes filtering area where filter core, and a part of hollow blowdown axis is stretched to from back shroud In cylinder, and it is located in filtering area space, the rest part of hollow blowdown axis is located at outside back shroud and by back shroud Shaft installing port is fixed, and blowdown room is arranged in the end of hollow blowdown axis, installation sewage pipe below blowdown room, in filtering area space Hollow blowdown axis stretches out dirt sucking tube, and sewage absorpting heat is installed in the end of dirt sucking tube.

2. a kind of horizontal ballast water filtering device with pleated type strainer according to claim 1, it is characterized in that: blowdown Room connects driving motor by shaft coupling connection traversing mechanism, rotating mechanism.

3. a kind of horizontal ballast water filtering device with pleated type strainer according to claim 2, it is characterized in that: cylinder The pressure sensor of outside installation detection inflow and outflow pressure difference drives after pressure sensor detection pressure difference reaches setting value Dynamic motor work is counter to be cleaned.

4. a kind of horizontal ballast water filtering device with pleated type strainer according to claim 1 to 3, feature Be: the filter core includes four layers from outside to inside, and outermost layer is the first protective layer, and the second layer is effective filter layer, third layer the Two protective layers, the 4th layer is supporting layer.

5. a kind of horizontal ballast water filtering device with pleated type strainer according to claim 4, it is characterized in that: first Protective layer and the second protective layer and supporting layer are drum type brake plane filter screen, and effective filter layer is the pleated type filtering of cylinder Net.

6. a kind of horizontal ballast water filtering device with pleated type strainer according to claim 5, it is characterized in that: pleated To be longitudinal folding along tubular axis direction, folded wave crest and trough and tubular axis hang down the pleated mode of type filter screen Directly, the trough circumference being consequently formed is parallel with the direction of rotation of rotating mechanism consistent, and folding mode is V-type folding, folds angle It is 3 ° -4 °.

7. a kind of horizontal ballast water filtering device with pleated type strainer according to claim 4, it is characterized in that: first Protective layer and the second protective layer filtering accuracy are 100-150 μm, and effective filter layer precision is 30-50 μm, supporting layer filtering accuracy It is 300-500 μm.

8. a kind of horizontal ballast water filtering device with pleated type strainer according to claim 5 or 6, it is characterized in that: First protective layer and the second protective layer filtering accuracy are 100-150 μm, and effective filter layer precision is 30-50 μm, supporting layer filtering Precision is 300-500 μm.

9. a kind of horizontal ballast water filtering device with pleated type strainer according to claim 1 to 3, feature Be: water outlet installs check-valves.

10. a kind of horizontal ballast water filtering device with pleated type strainer according to claim 4, it is characterized in that: going out The mouth of a river is installed by check-valves.