CN205760014U - Negative-pressure type self-cleaning filter - Google Patents
Negative-pressure type self-cleaning filter Download PDFInfo
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- CN205760014U CN205760014U CN201620551502.8U CN201620551502U CN205760014U CN 205760014 U CN205760014 U CN 205760014U CN 201620551502 U CN201620551502 U CN 201620551502U CN 205760014 U CN205760014 U CN 205760014U
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- filter
- soil pick
- tubular element
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- arm
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Abstract
A kind of negative-pressure type self-cleaning filter, relate to Ship's Ballast System, it is provided with in horizontal cylindric filter shell, filter shell is provided with water inlet and outlet, it is provided with tubular element, being provided with hollow blowdown axle in tubular element, hollow blowdown axle one end connects fixing blow-off pipe, and the hollow blowdown axle other end is connected with the main shaft driving motor；Being evenly equipped with soil pick-up arm on hollow blowdown axle, soil pick-up arm is provided with sewage absorpting heat；Sewage absorpting heat is: be provided with soil pick-up chamber in shell body, top is provided with sewage discharge tube, shell body bottom is provided with insertion pipe, insertion pipe is provided with the anti-spin slot of slip, is provided with the anti-rotation projection matched with the anti-spin slot that slides, is provided with stage clip on the downside of shell body and between soil pick-up arm upper end in soil pick-up arm.This utility model simple in construction, cheap for manufacturing cost, easy to maintenance, quick, cleaning effect is good, and use cost is cheap.
Description
Technical field
This utility model relates to Ship's Ballast System, says it is a kind of simple in construction, cheap for manufacturing cost in detail, maintenance side
Just, fast, cleaning effect is good, the negative-pressure type self-cleaning filter that use cost is cheap.
Background technology
It is known that filter is the parts of most critical in Ship's Ballast System, just sea shield Ballast Management system, mistake
Before filter is arranged at UV reactive device, its effect is to remove the impurity such as particulate matter, removes the plankton of 50 more than m simultaneously.
Prevent ballast water for ship from discharging foreign term, the pathogen propagation caused, it is to avoid to environment, human health, property and money
The aspects such as source cause damage.Filtration system operation and self-cleaning do not affect the processing procedure of ultraviolet, and self-cleaning flushing liquor is discharged into
In water acquisition marine site.
The filter pattern of existing Ship's Ballast System is more, as gas auxiliary liquid backwash filter, machinery brush
Self-cleaning filter, Wheel-type self-cleaning filter, negative-pressure type self-cleaning filter.Experiment proves that, gas auxiliary liquid recoil filter wash
Device, machinery brush type self-cleaning filter, Wheel-type self-cleaning filter instead cleans frequently under the operating mode of exceedingly odious waters, even occurs
The completely plugged phenomenon of filter element.Although and negative-pressure type self-cleaning filter cleans frequently, but the most anti-clean after, filter can recover initial
Pressure reduction, is applicable to the work of exceedingly odious waters.The structure of existing negative-pressure type self-cleaning filter is: be provided with filter shell, filter
Device housing is provided with water inlet and outlet, is provided with filter element between water inlet and outlet, and the filter element of water inlet side is provided with negative pressure
Clean suction nozzle, in the filter shell of water inlet side, be provided with cleaning suction pipe, clean suction nozzle and be connected with cleaning suction pipe, cleaning suction pipe another
End is connected with dredge pump water inlet；Filter shell is externally provided with work drive motor, and work drive motor drives cleaning suction nozzle to exist through drive mechanism
Filter element moves left and right after going forward.Existing this negative-pressure type self-cleaning filter drive mechanism structure is complicated, and manufacturing cost is high, rapid wear
Bad, maintenance difficulty is big, cost is high, low to the cleaning efficiency of filter screen, cleans uneven, weak effect.
Summary of the invention
The purpose of this utility model is the deficiency solving existing filter, it is provided that a kind of simple in construction, cheap for manufacturing cost, dimension
Protect conveniently, cleaning performance good, use cost is cheap and can be suitably used for the negative-pressure type self-cleaning filter in exceedingly odious waters.
This utility model solves above-mentioned the deficiencies in the prior art and be the technical scheme is that
A kind of negative-pressure type self-cleaning filter, is provided with filter shell, and filter shell is provided with water inlet and outlet, water inlet
Being provided with tubular element between mouth and outlet, water inlet directly connects with tubular element inside cavity, and outlet is directly filtered with tubular
Core cavity external body connects, it is characterised in that: it is provided with the hollow row that two ends are connected with filter shell through bearing respectively in tubular element
Dirty axle, hollow blowdown axle one end connects fixing blow-off pipe, and the hollow blowdown axle other end is closed and the main shaft phase driving motor
Even；Being circumferentially with at least two rows, the most uniform soil pick-up arm on hollow blowdown axle, soil pick-up arm connects inside hollow blowdown axle
Logical, soil pick-up arm is provided with the sewage absorpting heat of sewage discharge tube and tubular element contact internal walls.
The structure of the sewage absorpting heat described in this utility model is: be provided with shell body, is provided with soil pick-up chamber, shell body in shell body
Top is provided with strip sewage discharge tube, and shell body bottom is provided with the insertion pipe connected with soil pick-up chamber, and insertion pipe bottom is axially arranged with
Slide anti-spin slot.Sewage absorpting heat, in insertion pipe is plugged in soil pick-up arm, is provided with in soil pick-up arm and slides what anti-spin slot matched
Anti-rotation projection, is provided with stage clip on the downside of shell body and between soil pick-up arm upper end.
The strip sewage discharge tube of any one sewage absorpting heat described in this utility model scope of soil pick-up on filter element inwall
The strip sewage discharge tube of the sewage absorpting heat being adjacent arranged with other scope of soil pick-up on filter element inwall is connected or partially overlaps.
The cavity of the inside of the hollow blowdown axle described in this utility model is to driving motor side by fixing blowdown tube side
The conical cavity that diameter tapers into.The suction that conical cavity can make each soil pick-up arm obtain more equalizes, and is the soil pick-up of sewage absorpting heat product
Effect is close, to the cleaning of filter element uniformly, cleaning performance more preferably.
It is provided with pressure difference transmitter between the tubular element inner and outer described in this utility model, is used for detecting tubular element
The pressure differential of inner and outer, when pressure reduction exceedes setting value, cleans device work.
It is provided with breather valve on the upside of filter shell described in this utility model.Breather valve can unnecessary in discharge strainer housing
Gas, or during negative pressure, to the gas that its internal suction is appropriate.
The interior tapered chamber concrete shape of the hollow blowdown axle described in this utility model calculates through CFD software and obtains, its
Method is as follows:
A, setting standard k-epsion turbulence model based on pressure stable state, set the main operating parameters (sea water of fluid
Density 998.3kg/m3, temperature 293k), ignore the impact on water velocity of the wall viscosity.
B, in boundary condition, entrance (inlet) select flow velocity entrance (velocity-inlet), according to actual dredge pump
Metered flow, sewage discharge tube number and suction bore set flow velocity, arrange k and epsion value and are respectively 0.009 and 0.0076；
C, outlet (outlet) select to flow freely (out-flow), and because computation model is steady-flow, flow equalization is joined
Number is set to 1.
D, using entrance (inlet) as calculate beginning boundary, using internal flow (interior-body fluid) as join
Examine border, three-dimensional dirt sucking tube is carried out pressure field, field of turbulent flow and velocity field and solves, thus draw at different dirt sucking tube design bars
Each field distribution difference under part；
E, selection are this utility model hollow core blowdown axial cone from sewage discharge tube to the most obvious structural parameters of sewage draining exit pressure drop
The structural parameters in shape chamber.Because filter structures is less on the impact of blowdown main pipeline interior flow field, negligible during calculating.
Sewage discharge tube described in these computational methods is the fluid intake of hollow blowdown axle and soil pick-up arm junction, described
Sewage draining exit is hollow blowdown axle one end, by the fluid issuing at fluid discharge in hollow blowdown axle.
In use, water inlet taps into water pump to this utility model, and outlet connects storage tank, and fixing blow-off pipe connects blowdown
Pump, when filter element has dirty blocking to need to clean, dredge pump works with driving motor simultaneously, drives the hollow blowdown of driven by motor
Axle, soil pick-up arm and sewage absorpting heat rotate, and dredge pump provides suction for sewage absorpting heat, filter screen is carried out backwash.This utility model is tied
Structure is simple, cheap for manufacturing cost, easy to maintenance, quick, and cleaning effect is good, and use cost is cheap.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is partial enlarged drawing at the A of Fig. 1.
Fig. 3 is the structural representation of sewage absorpting heat in this utility model.
Fig. 4 is the structural representation of this utility model hollow core blowdown axle.
Detailed description of the invention
Negative-pressure type self-cleaning filter as Figure 1-4, is provided with filter shell 1, and filter shell 1 is provided with water inlet 2
With outlet 3, being provided with tubular element 4 between water inlet 2 and outlet 3, water inlet 2 directly connects with tubular element 4 inside cavity,
Outlet 3 directly connects with tubular element 4 containment portion, from figure 1 it appears that filter shell 1 is in horizontal cylindrical shape, and circle
Tubular filter shell be respectively arranged at two ends with left end cap 13 and right end cap 14, tubular element 4 and cylindric filter shell axis weight
That closes is fixed between left end cap 13 and right end cap 14, and water inlet 2 is located at the middle part of right end cap 14, and outlet 3 is located at cylindrical shape
On filter shell sidewall, said structure is same as the prior art, repeats no more.Of the present utility model it is characterised by: tubular element 4
Inside it is provided with the hollow blowdown axle 5 that two ends are connected with filter shell 1 respectively, the axis of hollow blowdown axle 5 and tubular element 4 through bearing
Dead in line, hollow blowdown axle 5 one end connects fixing blow-off pipe 6, and hollow blowdown axle 5 other end is closed and drives motor 7
Main shaft is connected；From figure 1 it appears that be provided with sliding bearing 12, hollow row through support in water inlet in the middle part of right end cap 14
Dirty axle right-hand member is arranged in sliding bearing 12, is fixed with and consolidating that hollow blowdown axle connects through connection seat 15 on the right side of sliding bearing 12
Determine blow-off pipe 6；It is provided with driving motor 7 outside the left end cap of filter shell, in the middle part of left end cap 13, is provided with sliding bearing, drive motor
Main shaft is connected with hollow blowdown axle left end through decelerator, sliding bearing.At least two rows, axially it are circumferentially with on hollow blowdown axle 5
Uniform soil pick-up arm 8, soil pick-up arm 8 is internal with hollow blowdown axle 5 to be connected, and soil pick-up arm 8 is provided with sewage discharge tube and filters with tubular
The sewage absorpting heat 9 of core contact internal walls.The structure of sewage absorpting heat 9 is as shown in Figure 2 and Figure 3: is provided with shell body 91, is provided with suction in shell body 91
Dirty chamber 92, shell body 91 top is provided with strip sewage discharge tube 93, and shell body bottom is provided with the insertion pipe 94 connected with soil pick-up chamber 92,
Insertion pipe 94 bottom is axially arranged with the anti-spin slot 95 of slip.Sewage absorpting heat 9 is in insertion pipe 94 is plugged in soil pick-up arm 8, and soil pick-up props up
Being provided with the anti-rotation protruding 96 matched with the anti-spin slot 95 that slides in pipe, protruding the matching with the anti-spin slot that slides of anti-rotation prevents sewage absorpting heat
Drive insertion pipe to rotate in soil pick-up arm, make strip sewage discharge tube parallel with the axis of tubular element all the time, and can be upper and lower
Relatively slide, be provided with stage clip 97 on the downside of shell body 91 and between soil pick-up arm 8 upper end, it is ensured that this utility model long-play
Rear sewage discharge tube is still in close contact with tubular element inwall.From figure 1 it appears that this utility model hollow core blowdown axle 5 weeks
Upwards it is provided with two row's soil pick-up arms 8, the interlaced arrangement hollow blowdown axle is axial of two row's soil pick-up arms, each sewage absorpting heat
The length of strip sewage discharge tube 93 arranges the distance between axial two soil pick-up arms adjacent thereto not less than another so that sewage absorpting heat is inhaled
The dirty scope cleaned covers whole filter element inwall.Cleaning thoroughly, cleaning performance is good.Tubular element is provided with pressure reduction between inner and outer
Transmitter, for detecting the pressure differential of tubular element inner and outer, when pressure reduction exceedes setting value, cleans device work.Filter
It is provided with breather valve on the upside of device housing；Breather valve can excessive gas in discharge strainer housing, or during negative pressure, to its internal suck suitable
The gas of amount.
This utility model improves further, described in the cavity of inside of hollow blowdown axle be by fixing blowdown tube side extremely
Drive the conical cavity that motor side diameter tapers into.The suction that conical cavity can make each soil pick-up arm obtain more equalizes, and is soil pick-up
The soil pick-up effect that head produces is close, to the cleaning of filter element uniformly, cleaning performance more preferably.
The interior tapered chamber concrete shape of the hollow blowdown axle described in this utility model calculates through CFD software and obtains, its
Method is as follows:
A, setting standard k-epsion turbulence model based on pressure stable state, the main operating parameters of setting fluid: sea water
Density 998.3kg/m3, temperature 293k, ignore the impact on water velocity of the wall viscosity.
B, in boundary condition, entrance (inlet) select flow velocity entrance (velocity-inlet), according to actual dredge pump
Metered flow, sewage discharge tube number and suction bore set flow velocity, because filter dredge pump metered flow is 50m/h, according to suction
Number of inlets (25) and suction inlet internal diameter (25mm), set inlet flow rate as 1.18m/s；Suction according to negative pressure self-cleaning filter
Dirty principle, it is known that inlet pressure is 0.5MPa(gauge pressure)；K and epsion value is set simultaneously and is respectively 0.009 and 0.0076；
C, outlet (outlet) select to flow freely (out-flow), and because computation model is steady-flow, flow equalization is joined
Number is set to 1.
D, using entrance (inlet) as calculate beginning boundary, using internal flow (interior-body fluid) as join
Examine border, three-dimensional dirt sucking tube is carried out pressure field, field of turbulent flow and velocity field and solves, thus draw at different dirt sucking tube design bars
Each field distribution difference under part.Final the most significantly to design structure as selection standard from sewage discharge tube to sewage draining exit pressure drop.Cause
Filter structures is less on the impact of blowdown main pipeline interior flow field, negligible during calculating.
Being computed, when a length of 1300mm of supervisor, internal diameter are 50mm, minimum 25mm to the maximum, internal pressure drops is maximum, speed
Degree field distribution is uniform, and sewage draining exit speed meets the soil pick-up pipeline practical operation situation under this blowdown flow.Therefore, hollow core row
Dirty manufacturing and designing of axle conical cavity is 50mm, the taper of minimum 25mm to the maximum for a length of 1300mm, internal diameter.
In use, water inlet taps into water pump to this utility model, and outlet connects storage tank, and fixing blow-off pipe connects blowdown
Pump, when filter element has dirty blocking to need to clean, dredge pump works with driving motor simultaneously, drives the hollow blowdown of driven by motor
Axle, soil pick-up arm and sewage absorpting heat rotate, and dredge pump provides suction for sewage absorpting heat, filter screen is carried out backwash.This utility model is tied
Structure is simple, cheap for manufacturing cost, easy to maintenance, quick, and cleaning effect is good, and use cost is cheap.
Claims (6)
1. a negative-pressure type self-cleaning filter, is provided with filter shell, and filter shell is provided with water inlet and outlet, water inlet
And between outlet, it being provided with tubular element, water inlet directly connects with tubular element inside cavity, and outlet is directly and tubular element
Containment portion connects, it is characterised in that: it is provided with the hollow blowdown that two ends are connected with filter shell through bearing respectively in tubular element
Axle, hollow blowdown axle one end connects fixing blow-off pipe, and the hollow blowdown axle other end is closed, is connected with the main shaft driving motor；
Being circumferentially with at least two rows, the most uniform soil pick-up arm on hollow blowdown axle, soil pick-up arm is internal with hollow blowdown axle to be connected,
Soil pick-up arm is provided with the sewage absorpting heat of sewage discharge tube and tubular element contact internal walls.
Negative-pressure type self-cleaning filter the most according to claim 1, it is characterised in that the structure of described sewage absorpting heat is: set
Having shell body, be provided with soil pick-up chamber in shell body, shell body top is provided with strip sewage discharge tube, and shell body bottom is provided with and soil pick-up chamber
The insertion pipe of connection, insertion pipe bottom is axially arranged with the anti-spin slot of slip.
Negative-pressure type self-cleaning filter the most according to claim 2, it is characterised in that any one described sewage absorpting heat
Strip sewage discharge tube scope of soil pick-up on filter element inwall is inhaled on filter element inwall with the strip sewage discharge tube of adjacent sewage absorpting heat
Dirty scope is connected or partially overlaps.
4. according to the negative-pressure type self-cleaning filter described in claim 1 or 2 or 3, it is characterised in that described hollow blowdown axle
The cavity of inside be to the conical cavity driving motor side diameter to taper into by fixing blowdown tube side.
Negative-pressure type self-cleaning filter the most according to claim 4, it is characterised in that with outward inside described tubular element
It is provided with pressure difference transmitter between side, for detecting the pressure differential of tubular element inner and outer, when pressure reduction exceedes setting value, cleans
Device works.
Negative-pressure type self-cleaning filter the most according to claim 5, it is characterised in that be provided with on the upside of described filter shell
Breather valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620551502.8U CN205760014U (en) | 2016-06-09 | 2016-06-09 | Negative-pressure type self-cleaning filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620551502.8U CN205760014U (en) | 2016-06-09 | 2016-06-09 | Negative-pressure type self-cleaning filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205760014U true CN205760014U (en) | 2016-12-07 |
Family
ID=58134664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620551502.8U Active CN205760014U (en) | 2016-06-09 | 2016-06-09 | Negative-pressure type self-cleaning filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN205760014U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833590A (en) * | 2016-06-09 | 2016-08-10 | 威海中远造船科技有限公司 | Negative-pressure type self-cleaning filter |
| CN106422462A (en) * | 2016-12-20 | 2017-02-22 | 洛阳双瑞金属复合材料有限公司 | Two-stage filtering self-cleaning filter adopting internal and external filter cylinders |
-
2016
- 2016-06-09 CN CN201620551502.8U patent/CN205760014U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833590A (en) * | 2016-06-09 | 2016-08-10 | 威海中远造船科技有限公司 | Negative-pressure type self-cleaning filter |
| CN106422462A (en) * | 2016-12-20 | 2017-02-22 | 洛阳双瑞金属复合材料有限公司 | Two-stage filtering self-cleaning filter adopting internal and external filter cylinders |
| CN106422462B (en) * | 2016-12-20 | 2019-04-16 | 洛阳双瑞金属复合材料有限公司 | A kind of inside and outside filter cylinder secondary filtration self-cleaning filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180214 Address after: 100020 Building 9, courtyard 1, No. 15 Guanghua Road, Chaoyang District, Beijing City, 908 Co-patentee after: Nantong Cheng Tong Electromechanical Technology Co., Ltd. Patentee after: COSCO Shipbuilding Industry Co., Ltd. Address before: 264200 Shandong, Weihai, Shandong Province, Huancui District, Zhang Cun town, Shenyang Middle Road, Changjiang street intersection Co-patentee before: Nantong Cheng Tong Electromechanical Technology Co., Ltd. Patentee before: WEIHAI COSCO SHIPBUILDING TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191204 Address after: 264200, Shandong District, Weihai City, Huancui Town, Shenyang Road, Yangtze River Street intersection Co-patentee after: Nantong Cheng Tong Electromechanical Technology Co., Ltd. Patentee after: WEIHAI COSCO SHIPBUILDING TECHNOLOGY CO., LTD. Address before: 100020 Building 9, courtyard 1, No. 15 Guanghua Road, Chaoyang District, Beijing City, 908 Co-patentee before: Nantong Cheng Tong Electromechanical Technology Co., Ltd. Patentee before: COSCO Shipbuilding Industry Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.19, Shenyang South Road, Zhangcun Town, Huancui District, Weihai City, Shandong Province 264200 Patentee after: Weihai COSCO marine heavy industry technology Co.,Ltd. Patentee after: Nantong Chengtong Electromechanical Technology Co., Ltd Address before: 264200 intersection of Changjiang street, Shenyang Middle Road, Zhangcun Town, Huancui District, Weihai City, Shandong Province Patentee before: WEIHAI COSCO SHIPBUILDING TECHNOLOGY Co.,Ltd. Patentee before: Nantong Chengtong Electromechanical Technology Co., Ltd |