CN107044797A - A kind of dredger central cooler back purge system - Google Patents
A kind of dredger central cooler back purge system Download PDFInfo
- Publication number
- CN107044797A CN107044797A CN201710221326.0A CN201710221326A CN107044797A CN 107044797 A CN107044797 A CN 107044797A CN 201710221326 A CN201710221326 A CN 201710221326A CN 107044797 A CN107044797 A CN 107044797A
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- CN
- China
- Prior art keywords
- valve
- central cooler
- dredger
- purge system
- backwash
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a kind of dredger central cooler back purge system.The invention belongs to Dredging Technology field.A kind of dredger central cooler back purge system, is characterized in：Dredger is made up of with central cooler back purge system sea water pump, valve and pipeline, seawater pump intake connects outboard through valve, sea water filter, seawater pump discharge by the road, valve be connected in parallel two sets of central coolers, two sets of central cooler seawer outlets connect sea water pump entrance pipe and outboard through valve, pipeline connection backwash screw down nonreturn valve between two sets of central cooler seawater inlets and valve, backwash screw down nonreturn valve connects outboard by pipeline through kingston valve.The present invention has simple in construction, and cheap, cost performance is splendid, without additional energy, practical, easy to operate, and controllability is good, the advantages of being adapted to backwash of all plate cold heat exchangers especially dredger in coastal construction.
Description
Technical field
The invention belongs to Dredging Technology field, more particularly to a kind of dredger is backwashed with central cooler and filled
Put.
Background technology
At present, the construction environment from boat cutter suction dredger is more near coastal port, and pollutant and microorganism are more, add
The ship disturbance of reamer to soil property in construction, ship surrounding seawater is more muddy.Ship central cooling device is ensureing to cool down
On the premise of effect, often because central central cooler filter is dirty stifled, cause cooling effect not good, cause plant equipment to overheat
Even more serious infringement.Once in addition, central cooler is dirty to block up serious, overall must just disassemble, dress is multiple after progress pickling, instead
Disassemble again and easily cause the damage of titanium plate O-ring seal, occur the series of problems such as leak.
The content of the invention
Present invention technical problem present in solution known technology provides a kind of dredger and recoiled with central cooler
Cleaning device.
It is an object of the invention to provide one kind have it is simple in construction, cheap, cost performance is splendid, without additional energy,
Practical, easy to operate, controllability is good, is adapted to especially backwash of the dredger in coastal construction of all plate cold heat exchangers
The features such as dredger central cooler back purge system.
The present invention improves a kind of novel central central cooler backwash dress of cooling effect not delay equipment operation
Put.By sea water service system hydraulic pressure natural flushing, it is not necessary to consume extra energy, efficient energy-saving.
The present invention is arranged on after the inlet valve of 2 charge air cooler sea suctions, and valve takes copper, a diameter of DN100, pressure
Power is not less than 0.3mpa.Valve is connected by 8 hole flanges, and 2 valve outlets are connected on the pipeline that caliber is 100mm, row
Go out outboard.
The present invention will install DN100 copper screw down nonreturn valve additional at row's outboard, prevent in the back purge system not used time
Inwelling is come in.
Dredger central cooler back purge system of the present invention is adopted the technical scheme that：
A kind of dredger central cooler back purge system, is characterized in：Dredger is backwashed with central cooler and filled
Put and be made up of sea water pump, valve and pipeline, seawater pump intake through valve, sea water filter connect outboard, seawater pump discharge by the road, valve simultaneously
Connection two sets of central coolers of connection, two sets of central cooler seawer outlets connect sea water pump entrance pipe and outboard, two sets through valve
Pipeline connection backwash screw down nonreturn valve between central cooler seawater inlet and valve, backwash screw down nonreturn valve passes through pipeline
Outboard is connected through kingston valve.
Dredger central cooler back purge system of the present invention can also be adopted the following technical scheme that：
Described dredger central cooler back purge system, is characterized in：Backwash screw down nonreturn valve uses DN80
It is 80-120mm to DN120 screw down nonreturn valves, caliber.
Described dredger central cooler back purge system, is characterized in：Kingston valve is ended from DN80 to DN120
Check-valves.
Described dredger central cooler back purge system, is characterized in：It is copper section to backwash screw down nonreturn valve
Only check-valves, pipeline takes stainless steel or galvanized pipe, and pressure rating is more than 0.3Mpa.
Described dredger central cooler back purge system, is characterized in：Pipeline is adopted with backwash screw down nonreturn valve
Connected, linked together between pipeline by way of welding with flange.
The present invention has the advantages and positive effects of：
Dredger with central cooler back purge system as a result of the brand-new technical scheme of the present invention, with prior art
Compare, this invention ensures that the central central cooler of boat plate type of dredging does not influence to apply under the muddy operating mode of seawater because dirty stifled
Work；
The present invention provides pressure energy, it is no longer necessary to extra energy when backwash from system diagram by main sea water pump
Amount, has the advantages that energy-conservation；
The present invention is simple in construction, and cheap, cost performance is splendid, is adapted to all plate cold heat exchanger especially dredgers on edge
The backwash during construction of sea, it is practical；
Operation sequence of the present invention is relatively easy, it is easy to operate, and can arbitrarily be switched according to actual conditions, and controllability is good；
The present invention ensures the cleaning of charge air cooler due to taking backwash measure, not only reduces turbine staff's
Workload, and the clear frequency of charge air cooler filter can be greatly reduced, even more extend the time between overhauls(TBO) of charge air cooler；
This invention ensures that dredger board-like central central cooler in the case of coastal or seawater is more muddy is changed
The thermal efficiency, the continuous construction to dredger serves certain effect.
Brief description of the drawings
Fig. 1 is dredger central cooler back purge system structural representation of the present invention.
In figure, 1. central coolers；2. central cooler；No. 3.1 central cooler sea suction valves；No. 4.1 centers are cold
But device seawater dump valve；No. 5.2 central cooler sea suction valves；No. 6.2 central cooler seawater dump valves；No. 7.1 centers
Cooler backwash valve；No. 8.2 central cooler backwash valves；9. backwash row's outboard valve；10. main sea water pump inlet valve；11.
Main sea water pump outlet valve；12. main sea water pump；13. sea water filter stop valve；14. sea water filter stop valve；15. seawater settler；
No. 16.1 central cooler filter Butterworth Hatch；No. 17.2 central cooler filter Butterworth Hatch；18. seawater triple valve；19. seawater is filtered
Device.
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing
Describe in detail as follows：
Refering to accompanying drawing 1.
Embodiment 1
A kind of dredger central cooler back purge system, is made up of sea water pump, valve and pipeline, seawater pump intake warp
Valve, sea water filter connection outboard, seawater pump discharge by the road, valve be connected in parallel two sets of central coolers, two sets of central coolers
Seawer outlet connects sea water pump entrance pipe and outboard through valve, the pipeline connection between two sets of central cooler seawater inlets and valve
Screw down nonreturn valve is backwashed, backwash screw down nonreturn valve connects outboard by pipeline through kingston valve.
Backwash screw down nonreturn valve uses DN100 screw down nonreturn valves, caliber for 100mm.Kingston valve is stopped from DN100
Return valve.Backwash screw down nonreturn valve is copper material, and pipeline takes stainless steel or galvanized pipe, and pressure rating is more than 0.3Mpa.Pipe
Road is connected with backwash screw down nonreturn valve using flange, is linked together between pipeline by way of welding.
The present embodiment concrete structure and its implementation process：
A kind of dredger central cooler back purge system, is made up of sea water pump, valve and pipeline.Backwash part includes
3 copper screw down nonreturn valves of DN100, caliber is 100mm stainless steel pipeline.The wherein 3 copper screw down nonreturn valves of DN100 pass through
Flange is connected, and the stress levels of stainless steel pipeline are 0.3mpa.Linking by being welded to connect between pipeline and pipeline.
Dredger central cooler back purge system is backwashed by the way of being set up in former ship to central cooler
Operation.It is 100mm stainless steel tube and 3 copper screw down nonreturn valves of DN100 from caliber, and opens up special maritime mouth, realizes
Function.Stainless steel tube is welded between former central cooler import and inlet valve, two coolers set up flushing line separately, and collect
It is maritime for a house steward, 3 DN100 screw down nonreturn valves are during which respectively mounted, the keying at any time to the back purge system is played, spirit
The effect living used.
The central cooler back purge system can not influence do not dismounting with cooling effect of cooler and standby cooling
On the premise of device, the cleaning to standby cooler is completed, cleaning performance is preferable.Power set are not set up simultaneously, merely with system
Seawater pressure completes cleaning.
Assuming that present No. 1 central cooler needs operation, No. 2 central coolers need backwash, and operating procedure is：Open
The sea suction valve 3 and No. 1 central cooler seawater dump valve 4 of No. 1 central cooler 1；Close No. 2 central cooler seawater
Inlet valve 5, opens No. 2 central cooler seawater dump valves 6；No. 1 central cooler backwash valve 7 is closed, No. 2 centers are opened cold
But device backwash valve 8；Open backwash row's outboard valve 9；Open sea water filter stop valve 13 and sea water filter stop valve 14, main sea
Water pump inlet valve 10 and main sea water pump outlet valve 11；Start main sea water pump 12.So, No. 1 central cooler is at operating shape
State, No. 2 central coolers are at backwash state.Similarly, No. 1 central cooler can also be rinsed.If need not recoil
When washing, No. 1 central cooler backwash valve 7 or No. 2 valves of central cooler backwash valve 8 are closed.
The present embodiment has described simple in construction, and cheap, cost performance is splendid, without additional energy, practical,
Easy to operate, controllability is good, is adapted to the especially backwash of dredger in coastal construction etc. of all plate cold heat exchangers and actively imitates
Really.
Claims (5)
1. a kind of dredger central cooler back purge system, it is characterized in that：Dredger central cooler back purge system
Be made up of sea water pump, valve and pipeline, seawater pump intake connects outboard through valve, sea water filter, seawater pump discharge by the road, valve it is in parallel
Two sets of central coolers are connected, two sets of central cooler seawer outlets are connected in sea water pump entrance pipe and outboard, two sets through valve
The pipeline connection backwash screw down nonreturn valve between cooler seawater inlet and valve is entreated, backwash screw down nonreturn valve is passed through by pipeline
Kingston valve connects outboard.
2. dredger according to claim 1 central cooler back purge system, it is characterized in that：Backwash cut-off non-return
Valve uses DN80 to DN120 screw down nonreturn valves, caliber for 80-120mm.
3. dredger according to claim 1 central cooler back purge system, it is characterized in that：Kingston valve selects DN80
To DN120 screw down nonreturn valves.
4. the dredger central cooler back purge system according to claim 1,2 or 3, it is characterized in that：Backwash is cut
Only check-valves is copper screw down nonreturn valve, and pipeline takes stainless steel or galvanized pipe, and pressure rating is more than 0.3Mpa.
5. dredger according to claim 5 central cooler back purge system, it is characterized in that：Pipeline is cut with backwash
Only check-valves is connected using flange, is linked together between pipeline by way of welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710221326.0A CN107044797A (en) | 2017-04-06 | 2017-04-06 | A kind of dredger central cooler back purge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710221326.0A CN107044797A (en) | 2017-04-06 | 2017-04-06 | A kind of dredger central cooler back purge system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107044797A true CN107044797A (en) | 2017-08-15 |
Family
ID=59545269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710221326.0A Pending CN107044797A (en) | 2017-04-06 | 2017-04-06 | A kind of dredger central cooler back purge system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070258A (en) * | 2021-03-18 | 2021-07-06 | 中国船舶工业集团公司第七0八研究所 | Pile-washing and seawater taking device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63140297A (en) * | 1986-12-01 | 1988-06-11 | Toshiba Corp | Back washing method for condenser |
| CN204574927U (en) * | 2015-04-22 | 2015-08-19 | 中国海洋石油总公司 | A kind of panel cooler with backwashing function |
-
2017
- 2017-04-06 CN CN201710221326.0A patent/CN107044797A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63140297A (en) * | 1986-12-01 | 1988-06-11 | Toshiba Corp | Back washing method for condenser |
| CN204574927U (en) * | 2015-04-22 | 2015-08-19 | 中国海洋石油总公司 | A kind of panel cooler with backwashing function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070258A (en) * | 2021-03-18 | 2021-07-06 | 中国船舶工业集团公司第七0八研究所 | Pile-washing and seawater taking device |
| CN113070258B (en) * | 2021-03-18 | 2022-10-14 | 中国船舶工业集团公司第七0八研究所 | Pile-washing and seawater taking device |
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