CN106762795A - A kind of new seawater cooling of dredger and dredge pump water shutoff system - Google Patents
A kind of new seawater cooling of dredger and dredge pump water shutoff system Download PDFInfo
- Publication number
- CN106762795A CN106762795A CN201611144083.7A CN201611144083A CN106762795A CN 106762795 A CN106762795 A CN 106762795A CN 201611144083 A CN201611144083 A CN 201611144083A CN 106762795 A CN106762795 A CN 106762795A
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- Prior art keywords
- water
- pump
- cooling
- seawater
- water shutoff
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of new seawater cooling of dredger and dredge pump water shutoff system, it includes：Seawater cooling device, for external dynamic sea to be sent in primary cooler after cooling precipitation；Balance sea water tank, including sea water tank body, multiple deflectors, maritime mouth, cooling connecting tube and water shutoff connecting tube, dredge pump sealing water device, including at least one water shutoff pump and at least one slush pump, water shutoff pump connects one to one with slush pump, and water shutoff pump is also connected with water shutoff connecting tube.The present invention is automatically adjusted using the water conservancy diversion precipitation and maritime mouth of the deflector of seawater tandem-driving bogie to turnover water difference, so as to realize the function of equilibrium water amount, which save sea water tank and the precipitation cabin of special water supply, simplify system architecture, the space occupancy rate inside ship is reduced, and ensure that dredge pump sealing water device can obtain the clean sea water through filtering and precipitate.
Description
Technical field
The present invention relates to Naval Architecture and Ocean Engineering technical field, more particularly to a kind of new seawater cooling of dredger and dredge pump
Water shutoff system.
Background technology
Cutter suction dredger be it is a kind of for waterway construction and safeguard, the important dredging work of port construction and reclamation by pumping filling
Ship, its main construction equipment is dredge pump, and its working media is the slurry fluid containing a large amount of silts, in order to slurry transportation is arrived
Designated area farther out, the operating pressure of dredge pump is very big, usually reaches more than 2MPa.Dredge pump is at work, it is necessary to set dredge pump
Water shutoff system, the major function of dredge pump water shutoff system has two, as described below：
First, dredge pump pump shaft sealing device is protected.The clean sea water that will have certain pressure is injected in its shaft seal, it is ensured that close
Operating pressure of the seawater pressure higher than dredge pump at envelope so that only clean sea water enters in dredge pump from sealing, does not have dredge pump
Interior slime water enters sealing.If the mud containing a large amount of silts enters shaft seal, sealing and pump shaft can be caused quickly to grind
Damage, so that dredge pump is leaked, it is impossible to normal work.
2nd, dredge pump pump case service life is extended.Dredge pump is long-term under the washing away of silt, and its housing is easy to abrasion.Because
Dredge pump pressure is higher, after dredge pump housing weares and teares to a certain extent, can be damaged under the effect of shell inside and outside differential pressure, causes to leak thing
Therefore.To avoid housing failure from causing the accident, it is necessary to changed afterwards to a certain extent in the abrasion of dredge pump housing, this considerably increases
The use cost of dredge pump.In order to avoid leakage accident, at the same it is cost-effective, i.e., extend dredge pump housing service life as far as possible, it is existing
In dredge pump usually using barrel insertpump, i.e., in the external cover crust body again of dredge pump inner casing, and it is full of and mud between inner and outer shell
The close equilibrium water of pump pressure so that inner housing external and internal pressure difference is close to zero, such inner housing can be very thin using arriving, so that
It is cost-effective, and have shell body protect ensure safety.Equilibrium water between inner and outer shell is also provided by dredge pump water shutoff system.
From the foregoing, it can be seen that dredge pump water shutoff system be related to dredger can normal work important component, water shutoff
The water quality of system must be cleaned, if containing a large amount of silts, will also result in the too fast damage of shaft seal.
The major function of dredger is exactly to dredge, and dredger can stir a large amount of silts of generation when dredging so that surrounding
It is high containing quantity of sand and mud in water body.The seawater cooling of dredger and dredge pump water shutoff system can only fetch water from the water body outside hull, such as
The external dynamic sea higher containing quantity of sand and mud for obtaining is directly used as refrigerated sea water and dredge pump water shutoff by fruit, can to cooling device on ship and
Dredge pump equipment belt is adversely affected.
In order to ensure the cleannes of refrigerated sea water and dredge pump water shutoff, dredger can be provided with seawater water inlet manifold filter and
Precipitation cabin, by filtering and precipitating, reduces the sediment charge in water, and clean water then is used for into seawater cooling and dredge pump water shutoff again
System.
At present, most of dredger can set two sets of sea water tanks and precipitation cabin, as shown in figure 1, it is the most frequently used strand inhaling
Dredger regular seawater is cooled down and water shutoff system, and external dynamic sea is entered by after the ＇ of cooling sea water tank 1 by valve and sea water filter
Enter the cooling seawater precipitation ＇ of cabin 2, seawater is then squeezed into the ＇ of primary cooler 4 by the ＇ of main sea water pump 3 by valve and takes away heat, so
Seawater discharges outboard by refrigerated sea water discharge pipe afterwards, according to this pattern, these by seawater cleaner after precipitation,
Heat is taken away, outboard is just discharged after having certain intensification, do not utilized further.And in order to provide dredge pump to the ＇ of slush pump 5
Water shutoff, in addition it is also necessary to which a set of ＇ of water shutoff pump sea water tank 6 and water shutoff pump the precipitation ＇ of cabin 7 and associated pipe, valve etc. are aboard ship set in addition,
The expensive real estate on ship is occupied, system complexity is increased.
Part ship employs way as shown in Figure 2 again, only sets a set of ＇ of cooling sea water tank 1 and cooling precipitates cabin
2 ＇, while being cooling water and dredge pump water shutoff system water supply.But the flow of single set system is so increased again so that cooling sea
The ＇ of water tank 1, the cooling precipitation ＇ of cabin 2 and the annex such as cooling seawater main and corresponding valve, filter must all increase specification,
So that the increase that takes up room, shipbuilding cost increase.
The content of the invention
The present invention mainly solve prior art in the presence of technical problem so that provide a kind of space hold it is small, into
The new seawater cooling of this low dredger and dredge pump water shutoff system.
Above-mentioned technical problem of the invention is mainly what is be addressed by following technical proposals：
The new seawater cooling of dredger and dredge pump water shutoff system that the present invention is provided, it includes：
Seawater cooling device, for external dynamic sea to be sent in primary cooler after cooling precipitation；
Balance sea water tank, including sea water tank body, multiple deflectors, maritime mouth, cooling connecting tube and water shutoff connecting tube are more
The individual deflector is staggered on the madial wall of the sea water tank body, and the cooling connecting tube and water shutoff connecting tube are distinguished
It is connected with the bottom and top of the sea water tank body, the maritime mouth is arranged on the bottom of the sea water tank body, and with
External dynamic sea is connected, wherein, outlet of the cooling connecting tube also with the primary cooler is connected；
Dredge pump sealing water device, including at least one water shutoff pump and at least one slush pump, the water shutoff pump and slush pump one
One correspondence is connected, and the water shutoff pump is also connected with the water shutoff connecting tube.
Further, the seawater cooling device also includes that at least one refrigerated sea water case and cooling seawater precipitate cabin,
The refrigerated sea water case is connected through the first filter with cooling seawater precipitation cabin, and cooling seawater precipitates cabin and passes through
Sea water pump is connected with the primary cooler.
Further, it is additionally provided with the second filter between the water shutoff connecting tube and the water shutoff pump.
Further, mounting flange, and the cooling connecting tube are equipped with the cooling connecting tube and water shutoff connecting tube
Reinforcing plate is equipped with and water shutoff connecting tube and the sea water tank body between.
Further, sea water tank permeability cell and deflector permeability cell, the sea water tank are additionally provided with the sea water tank body
Permeability cell is arranged on the top of the sea water tank body, and described deflector permeability cell one end is connected with the sea water tank permeability cell
Connect, its other end extends to the air deflector of the bottom.
Further, the deflector is obliquely installed, and is parallel to each other between adjacent two deflectors.
The beneficial effects of the present invention are：By setting balance seawater between seawater cooling device and dredge pump sealing water device
, directly be incorporated into the seawater in the exit of the primary cooler of seawater cooling device in balance sea water tank by case, is balanced using seawater
The water conservancy diversion precipitation and maritime mouth of the deflector of case are automatically adjusted to turnover water difference, so as to realize the work(of equilibrium water amount
Can, sea water tank and the precipitation cabin of special water supply are which saved, system architecture is simplified, reduce the space hold inside ship
Rate, and ensure that dredge pump sealing water device can obtain the clean sea water through filtering and precipitate.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the new seawater cooling of dredger of the prior art and dredge pump water shutoff system；
Fig. 2 is the structural representation of the new seawater cooling of another dredger of the prior art and dredge pump water shutoff system；
Fig. 3 is the structural representation of the new seawater cooling of dredger of the invention and dredge pump water shutoff system；
Fig. 4 is the structural representation of the balance sea water tank of the new seawater cooling of dredger of the invention and dredge pump water shutoff system
Figure；
Fig. 5 is Fig. 4 along the sectional view at A-A；
Fig. 6 is Fig. 5 along the sectional view at B-B.
Specific embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
Refering to shown in Fig. 3-6, the new seawater of dredger of the invention is cooled down and dredge pump water shutoff system, and it includes：
Seawater cooling device 1, for external dynamic sea to be sent in primary cooler 11 after cooling precipitation；
Balance sea water tank 2, including sea water tank body 21, multiple deflectors 22, maritime mouth 23, cooling connecting tube 24 and water shutoff
Connecting tube 25, multiple deflectors 22 are staggered on the madial wall of sea water tank body 21, and cooling connecting tube 24 and water shutoff are connected
Pipe 25 is connected with the bottom and top of sea water tank body 21 respectively, and maritime mouth 23 is arranged on the bottom of sea water tank body 21, and
It is connected with external dynamic sea, wherein, outlet of the cooling connecting tube 24 also with primary cooler 11 is connected；In the present embodiment, water conservancy diversion
Plate 22 is obliquely installed, and is parallel to each other between adjacent two deflectors 22.Can so prevent seawater from entering directly into water shutoff
In the pipeline of connecting tube 25, but slowly tilted upward along the direction of deflector 22, it is heavier during moving up
Sand grain sinks, it is achieved thereby that precipitation function.
Dredge pump sealing water device 3, including at least one water shutoff pump 31 and at least one slush pump 32, water shutoff pump 31 and slush pump
32 connect one to one, and water shutoff pump 31 is also connected with water shutoff connecting tube 25.Water shutoff pump 31 is mainly used in having precipitated
Balance sea water tank 2 in clean sea water squeeze into each slush pump 32 because slush pump 32 by water shutoff be used in shaft seal water
It is on double shells equilibrium water therefore not high to temperature requirement but higher to cleannes requirement, the cooling of the balance outflow of sea water tank 2
After seawater heats up, temperature can fully meet the use requirement of dredge pump sealing water device 3 between 36 to 45 DEG C.
The present invention balances sea water tank 2 by being set between seawater cooling device 1 and dredge pump sealing water device 3, directly by sea
The seawater in the exit of the primary cooler 11 of water-cooling apparatus 1 is incorporated into balance sea water tank 2, using leading for seawater tandem-driving bogie 2
The water conservancy diversion precipitation and maritime mouth 23 for flowing plate 22 are automatically adjusted to turnover water difference, so as to realize the work(of equilibrium water amount
Can, sea water tank and the precipitation cabin of special water supply are which saved, system architecture is simplified, reduce the space hold inside ship
Rate, and ensure that dredge pump sealing water device 3 can obtain the clean sea water through filtering and precipitate.
Specifically, seawater cooling device 1 also includes that at least one refrigerated sea water case 12 and cooling seawater precipitate cabin 13, cold
But sea water tank 12 is connected through the first filter 15 with cooling seawater precipitation cabin 13, and cooling seawater precipitates cabin 13 through sea water pump
14 are connected with primary cooler 11.External dynamic sea enters cold with after sea water tank 12 by cooling by valve and the first filter 15
But precipitate cabin 13 with seawater to be precipitated, then, being squeezed into the seawater after precipitation by sea water pump 14 carries out heat in primary cooler 11
Exchange.
In the present invention, in order to further improve the cleannes of seawater, it is additionally provided between water shutoff connecting tube 25 and water shutoff pump 31
Second filter 33.
Preferably, cooling connecting tube 24 and water shutoff connecting tube 25 are sealed with seawater cooling device 1 and dredge pump respectively for convenience
Water installations 3 are quickly connected, and mounting flange 26, and cooling connecting tube are equipped with cooling connecting tube 24 and water shutoff connecting tube 25
Reinforcing plate 27 is equipped between 24 and water shutoff connecting tube 25 and sea water tank body 21.Reinforcing plate 27 can increase cooling connecting tube 24
With the structural strength of water shutoff connecting tube 25, its service life is improved.
In the present invention, in order that balance sea water tank carries airing function, reduce the influence that bubble etc. is produced to system, seawater
Sea water tank permeability cell 28 and deflector permeability cell 29 are additionally provided with case body 21, sea water tank permeability cell 28 is arranged on sea water tank body
21 top, one end of deflector permeability cell 29 is connected with sea water tank permeability cell 28, and its other end extends to the water conservancy diversion of the bottom
At plate 22.
The course of work of the invention is as follows：
Under normal circumstances, the refrigerated sea water in the exit of primary cooler 11 enters into sea water tank body by cooling connecting tube 24
In 21, dredge pump sealing water device 3 needs the seawater of flow after the water conservancy diversion of the deflector 22 for having certain gradient is disturbed, and precipitation is fallen
A small amount of silt, subsequently into water shutoff connecting tube 25, uses for water shutoff system.Other unnecessary refrigerated sea waters are downwardly into maritime mouth
23, outboard is discharged, so as to realize the balance of water.
When seawater cooling device 1 does not work, if dredge pump sealing water device 3 needs to supply water, seawater passes through maritime mouth 23
Into in sea water tank body 21, the ramp way for then being formed by multiple deflectors 22 reduces seawater velocity, so that portion
Sediment deposition is divided to decline, cleaner seawater enters water shutoff connecting tube 25 after bypassing the superiors' deflector 22, makes for water shutoff system
With.
When dredge pump sealing water device 3 does not work, if seawater cooling device 1 is working, it is necessary to draining, refrigerated sea water
Entered in sea water tank body 21 by cooling connecting tube 24, then by maritime mouth 23, discharge outboard.
From the above mentioned, it is seen that balance sea water tank 2 is provided simultaneously with the work(of precipitation, draining, water inlet and regulation turnover water balance
Can, its far smaller than conventional a set of sea water tank that takes up space adds the combination in precipitation cabin, is fully able to realize that refrigerated sea water is discharged
With the function of water shutoff system water supply.
More than, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, it is any without
The change or replacement that creative work is expected are crossed, should be all included within the scope of the present invention.Therefore, protection of the invention
Scope should be determined by the scope of protection defined in the claims.
Claims (6)
1. a kind of new seawater of dredger is cooled down and dredge pump water shutoff system, it is characterised in that including：
Seawater cooling device, for external dynamic sea to be sent in primary cooler after cooling precipitation；
Balance sea water tank, including sea water tank body, multiple deflectors, maritime mouth, cooling connecting tube and water shutoff connecting tube, Duo Gesuo
Deflector is stated to be staggered on the madial wall of the sea water tank body, the cooling connecting tube and water shutoff connecting tube respectively with institute
The bottom for stating sea water tank body is connected with top, and the maritime mouth is arranged on the bottom of the sea water tank body, and and outboard
Seawater is connected, wherein, outlet of the cooling connecting tube also with the primary cooler is connected；
Dredge pump sealing water device, including at least one water shutoff pump and at least one slush pump, a pair of the water shutoff pump and slush pump 1
Should connect, and the water shutoff pump is also connected with the water shutoff connecting tube.
2. the new seawater of dredger as claimed in claim 1 is cooled down and dredge pump water shutoff system, it is characterised in that the seawater is cold
But device also includes that at least one refrigerated sea water case and cooling seawater precipitate cabin, the refrigerated sea water case through the first filter with
The cooling seawater precipitation cabin is connected, and the cooling seawater precipitation cabin is connected through sea water pump with the primary cooler.
3. the new seawater of dredger as claimed in claim 1 or 2 is cooled down and dredge pump water shutoff system, it is characterised in that the envelope
The second filter is additionally provided between water connecting tube and the water shutoff pump.
4. the new seawater of dredger as claimed in claim 2 is cooled down and dredge pump water shutoff system, it is characterised in that the cooling connects
Mounting flange, and the cooling connecting tube and water shutoff connecting tube and the sea water tank body are equipped with adapter and water shutoff connecting tube
Between be equipped with reinforcing plate.
5. the new seawater of dredger as claimed in claim 4 is cooled down and dredge pump water shutoff system, it is characterised in that the sea water tank
Sea water tank permeability cell and deflector permeability cell are additionally provided with body, the sea water tank permeability cell is arranged on the sea water tank body
Top, described deflector permeability cell one end is connected with the sea water tank permeability cell, and its other end extends to the described of the bottom
Air deflector.
6. the new seawater of dredger as claimed in claim 5 is cooled down and dredge pump water shutoff system, it is characterised in that the deflector
It is obliquely installed, and is parallel to each other between adjacent two deflectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144083.7A CN106762795B (en) | 2016-12-13 | 2016-12-13 | Seawater cooling and dredge pump water sealing system for dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144083.7A CN106762795B (en) | 2016-12-13 | 2016-12-13 | Seawater cooling and dredge pump water sealing system for dredger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762795A true CN106762795A (en) | 2017-05-31 |
| CN106762795B CN106762795B (en) | 2022-11-11 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611144083.7A Active CN106762795B (en) | 2016-12-13 | 2016-12-13 | Seawater cooling and dredge pump water sealing system for dredger |
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| CN (1) | CN106762795B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109969372A (en) * | 2019-04-11 | 2019-07-05 | 苏州飞驰环保科技股份有限公司 | Inner-outer circulation switching is with the water-cooling system of the water surface cleaning ship suitable for different waters |
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| CN206280293U (en) * | 2016-12-13 | 2017-06-27 | 上海交通大学 | A kind of new seawater cooling of dredger and dredge pump water shutoff system |
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2016
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| JP2013024119A (en) * | 2011-07-20 | 2013-02-04 | Chugoku Electric Power Co Inc:The | Shaft lubricating water supply line and foreign substance removing method |
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| CN109969372A (en) * | 2019-04-11 | 2019-07-05 | 苏州飞驰环保科技股份有限公司 | Inner-outer circulation switching is with the water-cooling system of the water surface cleaning ship suitable for different waters |
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| Publication number | Publication date |
|---|---|
| CN106762795B (en) | 2022-11-11 |
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