CN108167170A - A kind of frequency control center salt water cooling system - Google Patents
A kind of frequency control center salt water cooling system Download PDFInfo
- Publication number
- CN108167170A CN108167170A CN201711327839.6A CN201711327839A CN108167170A CN 108167170 A CN108167170 A CN 108167170A CN 201711327839 A CN201711327839 A CN 201711327839A CN 108167170 A CN108167170 A CN 108167170A
- Authority
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- China
- Prior art keywords
- water pump
- sea water
- signal
- frequency
- frequency converter
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
- B63H21/383—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like for handling cooling-water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/05—Pressure after the pump outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/11—Outlet temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Feedback Control In General (AREA)
Abstract
The invention discloses a kind of frequency control center salt water cooling systems, including frequency converter, frequency conversion sea water pump, seawer outlet temperature sensor, water outlet temperature sensor, seawater pump discharge pressure switchs, power module, first by signal acquisition module by various pressure signals, temperature signal, the speed signal of frequency converter is acquired to main control box, then PLC carries out logic analysis and PID thermostatic control operations to collected signal, the optimum speed signal calculated is exported to frequency converter, speed control is carried out so as to adjust seawater flow to the rotating speed of sea water pump, setting control position switching button on frequency converter simultaneously, when main control station failure, it can convert to frequency converter local operation, transducer body can carry out the start and stop of sea water pump and rotating speed setting operation.Whole system of the present invention uses PID thermostatic controls, improves the reliability, rapidity and accuracy of temperature control system.
Description
Technical field
The present invention relates to Marine engineering technical field more particularly to a kind of frequency control center salt water cooling systems.
Background technology
With the development of shipping industry in recent years, at the same time the demand of ship also constantly increases, but, the sea brought by ship
Foreign problem of environmental pollution also becomes the focus of international concern, due to the constraint of relevant law and pact, and from following ship
Need to reduce cost, economize on resources, environmental protection angularly considers, " green ship " has become following shipping industry development
Inexorable trend.Therefore the energy-saving and emission-reduction of marine system are studied, there is positive realistic meaning.Wherein, converter technique
Using, marine system can be optimized, so as to make the energy consumption of ship lower, intelligent higher.
Salt water cooling system is one of important system of ship, and traditional salt water cooling system is needed generally according to maximum duty
It designs, and practical in use, cooling pump long-time underrun, mechanical efficiency are relatively low, power wastage is more serious.
Conventional center salt water cooling system, as shown in Figure 1, by cooling sea water pump, central fresh-water cooler, fresh water cooling pump, automatic three
The compositions such as logical temperature-sensing valve and cooled equipment, related measuring instrument.Seawater enters central fresh water cooled by cooling sea water pump
Device, the fresh water in cooler is by the heat exchange with seawater, and after being cooled down by seawater, temperature is lower, and fresh water after cooling is sent to quilt
The equipment of cooling cools down adjusting of the fresh water by three-way temperature control valve, fresh water temperature is made to remain at 36 DEG C.
If institute's boatbuilding oceangoing ship is global navigating area, the ocean temperature of system is usually designed according to 32 DEG C, does not consider ocean temperature
Actual change, sea water pump will all run with rated speed and flow, but due to marine site residing for ship and the difference in season, sea
Coolant-temperature gage generally will all be less than 32 DEG C, thus practical cooling with seawater flow can much smaller, waste is seriously.
In addition, temperature increases seawater in cooling procedure, if reaching 50 ~ 55 DEG C or more, it may occur that salting-out phenomenon causes
It is blocked in pipeline and cooler serious.
For this purpose, the present invention proposes a kind of frequency control center salt water cooling system.
Invention content
The purpose of the present invention is to solve shortcoming in the prior art, and a kind of frequency control center sea proposed
Water cooling system.
To achieve these goals, present invention employs following technical solutions：
A kind of frequency control center salt water cooling system, including frequency converter, frequency conversion sea water pump, seawer outlet temperature sensor, light
Water outlet temperature sensor, seawater pump discharge pressure switch, seawer outlet pressure sensor, main control box and master operating station, institute
It states and PLC, signal acquisition module, power module is installed in main control box, first believed various pressure by signal acquisition module
Number, the speed signal of temperature signal, frequency converter acquire to main control box, then PLC carries out logic analysis to collected signal
And PID thermostatic control operations, the optimum speed signal calculated is exported to frequency converter, the rotating speed of frequency converter adjustment sea water pump is extremely
Setting value, wherein PLC processing units are double sets, and when a wherein set of fault, other set still has systematic signal processing energy
Power, master operating station realize the reciprocation of information by Ethernet and main control box, and the configuration software of master operating station can be to whole
A frequency conversion system is shown and is operated, wherein rotating speed, operating status, control command comprising sea water pump, control position, cooling
Temperature, the main sea water loine pressure of water can also set every the preferential of pump group to be connect using sequence and hand automatic conversion, frequency converter
By the speed command signal of main control box, speed control is carried out so as to adjust seawater flow, while frequency conversion to the rotating speed of sea water pump
Setting control position switching button, when main control station failure, can convert to frequency converter local operation, transducer body on device
It can carry out the start and stop of sea water pump and rotating speed setting operation.
Preferably, when seawater pump discharge pressure is less than setting value, spare sea water pump starts automatically, and provides alarm.
Preferably, when seawer outlet temperature is more than setting value, system increases online seawater revolution speed automatically, and provides report
It is alert.
Preferably, when online seawater revolution speed has reached maximum, and seawer outlet temperature is still greater than setting value, spare seawater
Pump is automatic to be started, and provide alarm.
Preferably, when water outlet temperature is more than setting value, system increases online seawater revolution speed automatically, and provides report
It is alert.
Preferably, when online seawater revolution speed has reached maximum, and water outlet temperature is still greater than setting value, spare seawater
Pump is automatic to be started, and provide alarm.
Preferably, system is by the run signal of frequency converter, the automatic accumulative total run time per Taiwan Straits water pump, when more than
During run time, spare pump group is automatically switched to, so as to reduce the failure rate that single pump group long-play is brought.
Preferably, central cooling system is the indispensable system of the equipment normal operation such as host, generator, therefore works as ship from mistake
When electricity condition restores, sea water pump can start automatically.
Preferably, when online seawater failure of pump, spare sea water pump is automatically switched to, and provides alarm.
Preferably, frequency conversion sea water pump 3, electricity 440VAC, 60HZ, power 43.1KW, 365 m3/hr of flow, lift
2.5bar, 3, frequency converter, electricity 440VAC, power 45KW, model Schneider ATV630D45N4, the babinet of main control box are adopted
With the steel babinet of 0818 800X1800X400mm of SAM SN, inside is containing 40 On-off signal signaling modules 1, and 20
Point switching value output signal module 1,12 point PT100 signal input modules 1,20 analog signals output input modules 1
It is a, PLC processing units 2,1 set of uninterrupted power supply, 1, ethernet signal interface, main control station 1, containing 22 cun of displays
Device, operation keyboard, mouse, each 1 of industrial personal computer, uninterruptible power supply, pressure switch 3 are respectively arranged in each seawater pump discharge,
For the automatic starting of spare pump group, model：YWK-50-C, specification 0-0.5MPa set 0.2Mpa, pressure sensor 1
It is a, seawater pump discharge is installed on, for main sea water pump pressure remote indication and low pressure alarming；Model：YSZK-01G-C, specification
0-0.6MPa set 0.15MPa, temperature sensor 2 are respectively arranged in cooler seawer outlet and cooler water outlet,
For the PID control of frequency converter, model：WZPK-22I-C, specification Pt100, L=100.
Compared with prior art, the beneficial effects of the invention are as follows：Using frequency control sea water pump, output power is with fresh water
The variation of temperature and adjust, it is more energy saving；Whole system use PID thermostatic controls, improve temperature control system reliability,
Rapidity and accuracy.
Description of the drawings
Fig. 1 is the functional block diagram of existing salt water cooling system；
Fig. 2 is a kind of functional block diagram of frequency control center salt water cooling system proposed by the present invention；
Fig. 3 is the MIMIC of master operating station cooling system in a kind of frequency control center salt water cooling system proposed by the present invention
Functional block diagram；
Fig. 4 is the detail of signal handled by main control box in a kind of frequency control center salt water cooling system proposed by the present invention
Table.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.
With reference to Fig. 1-4, a kind of frequency control center salt water cooling system, including frequency converter, frequency conversion sea water pump, seawer outlet
Temperature sensor, water outlet temperature sensor, seawater pump discharge pressure switch, seawer outlet pressure sensor, main control box
And master operating station, which is characterized in that PLC, signal acquisition module, power module are equipped in the main control box, is passed through first
Signal acquisition module acquires the speed signal of various pressure signals, temperature signal, frequency converter to main control box, then PLC pairs
Collected signal carries out logic analysis and PID thermostatic control operations, and the optimum speed signal calculated is exported to frequency converter,
The rotating speed of frequency converter adjustment sea water pump is to setting value, and wherein PLC processing units are double sets, when a wherein set of fault, in addition one
Set still has systematic signal handling capacity, and master operating station realizes the reciprocation of information by Ethernet and main control box, main
The configuration software of active station can be shown and operated to entire frequency conversion system, wherein the rotating speed comprising sea water pump, operation shape
State, control command, control position, the temperature of cooling water, main sea water loine pressure, can also set the preferential use of every pump group
Sequence and hand automatic conversion, frequency converter receive the speed command signal of main control box, and speed control is carried out to the rotating speed of sea water pump
So as to adjust seawater flow, while setting control position switching button on frequency converter, when main control station failure, can convert to
Frequency converter local operation, transducer body can carry out the start and stop of sea water pump and rotating speed setting operation.
In the present invention, when seawater pump discharge pressure is less than setting value, spare sea water pump starts automatically, and provides alarm,
When seawer outlet temperature is more than setting value, system increases online seawater revolution speed automatically, and provides alarm, when online sea water pump
Rotating speed has reached maximum, and when seawer outlet temperature is still greater than setting value, and spare sea water pump starts automatically, and provides alarm, when light
When water outlet temperature is more than setting value, system increases online seawater revolution speed automatically, and provides alarm, when online seawater revolution speed
Maximum is reached, and when water outlet temperature is still greater than setting value, spare sea water pump starts automatically, and provides alarm, and system passes through
The run signal of frequency converter, the automatic accumulative total run time per Taiwan Straits water pump, when more than run time, automatically switches to standby
With pump group, so as to reduce the failure rate that single pump group long-play is brought, central cooling system is the equipment such as host, generator
The indispensable system of normal operation, therefore when ship restores from power failure state, sea water pump can start automatically, when the event of online sea water pump
During barrier, spare sea water pump is automatically switched to, and provides alarm, frequency conversion sea water pump 3, electricity 440VAC, 60HZ, power
43.1KW, 365 m3/hr of flow, lift 2.5bar, 3, frequency converter, electricity 440VAC, power 45KW, model Schneider
ATV630D45N4, the babinet of main control box use the steel babinet of 0818 800X1800X400mm of SAM SN, and inside is contained
40 On-off signal signaling modules 1,20 switching value output signal modules 1,12 point PT100 signal input modules 1,
20 analog signals output input modules 1, PLC processing units 2,1 set of uninterrupted power supply, ethernet signal interface
1, main control station 1, containing 22 cun of displays, operation keyboard, mouses, each 1 of industrial personal computer, uninterruptible power supply, pressure switch 3
It is a, each seawater pump discharge is respectively arranged in, for the automatic starting of spare pump group, model：YWK-50-C, specification 0-
0.5MPa set 0.2Mpa, pressure sensor 1, are installed on seawater pump discharge, for main sea water pump pressure remote indication and low
Pressure alarm；Model：YSZK-01G-C, specification 0-0.6MPa set 0.15MPa, temperature sensor 2 are respectively arranged in cold
But device seawer outlet and cooler water outlet, for the PID control of frequency converter, model：WZPK-22I-C, specification Pt100, L
=100。
In the use of the present invention, using frequency control sea water pump, output power is adjusted with the variation of fresh water temperature, more
Supernumerary segment energy；Whole system uses PID thermostatic controls, improves the reliability, rapidity and accuracy of temperature control system.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of frequency control center salt water cooling system, including frequency converter, frequency conversion sea water pump, seawer outlet temperature sensor,
Water outlet temperature sensor, seawater pump discharge pressure switch, seawer outlet pressure sensor, main control box and master operating station,
It is characterized in that, being equipped with PLC, signal acquisition module, power module in the main control box, pass through signal acquisition module first
The speed signal of various pressure signals, temperature signal, frequency converter is acquired to main control box, then PLC is to collected signal
Logic analysis and PID thermostatic control operations are carried out, the optimum speed signal calculated is exported to frequency converter, frequency converter adjustment sea
The rotating speed of water pump to setting value, wherein PLC processing units is double sets, and when a wherein set of fault, other set still has system
Signal handling capacity, master operating station passes through the reciprocation that Ethernet and main control box realize information, the configuration of master operating station
Software can be shown and operated to entire frequency conversion system, wherein rotating speed, operating status, control command comprising sea water pump,
Position, the temperature of cooling water, main sea water loine pressure are controlled, every the preferential of pump group can also be set to use sequence and hand automatic
Conversion, frequency converter receive the speed command signal of main control box, and speed control is carried out so as to adjust seawater to the rotating speed of sea water pump
Flow, while setting control position switching button on frequency converter when main control station failure, can be converted to frequency converter and locally be grasped
Make, transducer body can carry out the start and stop of sea water pump and rotating speed setting operation.
2. a kind of frequency control center salt water cooling system according to claim 1, which is characterized in that when seawater pump discharge
When pressure is less than setting value, spare sea water pump starts automatically, and provides alarm.
3. a kind of frequency control center salt water cooling system according to claim 1, which is characterized in that when seawer outlet temperature
When degree is more than setting value, system increases online seawater revolution speed automatically, and provides alarm.
4. a kind of frequency control center salt water cooling system according to claim 1, which is characterized in that when online sea water pump
Rotating speed has reached maximum, and when seawer outlet temperature is still greater than setting value, and spare sea water pump starts automatically, and provides alarm.
5. a kind of frequency control center salt water cooling system according to claim 1, which is characterized in that when water outlet temperature
When degree is more than setting value, system increases online seawater revolution speed automatically, and provides alarm.
6. a kind of frequency control center salt water cooling system according to claim 1, which is characterized in that when online sea water pump
Rotating speed has reached maximum, and when water outlet temperature is still greater than setting value, and spare sea water pump starts automatically, and provides alarm.
7. a kind of frequency control center salt water cooling system according to claim 1, which is characterized in that system passes through frequency conversion
The run signal of device, the automatic accumulative total run time per Taiwan Straits water pump, when more than run time, automatically switches to stand-by pump
Group, so as to reduce the failure rate that single pump group long-play is brought.
A kind of 8. frequency control center salt water cooling system according to claim 1, which is characterized in that central cooling system
Be host, gen-set normal operation indispensable system, therefore when ship restores from power failure state, sea water pump can rise automatically
It is dynamic.
9. a kind of frequency control center salt water cooling system according to claim 1, which is characterized in that when online sea water pump
During failure, spare sea water pump is automatically switched to, and provides alarm.
A kind of 10. frequency control center salt water cooling system according to claim 1, which is characterized in that frequency conversion sea water pump 3
Platform, electricity 440VAC, 60HZ, power 43.1KW, 365 m3/hr of flow, lift 2.5bar, 3, frequency converter, electricity 440VAC,
Power 45KW, model Schneider ATV630D45N4, the babinet of main control box use SAM SN 0818
40 On-off signal signaling modules 1,20 switching value output signals are contained in the steel babinet of 800X1800X400mm, inside
Module 1,12 point PT100 signal input modules 1,20 analog signals output input modules 1, PLC processing units 2
It is a, 1 set of uninterrupted power supply, 1, ethernet signal interface, main control station 1, containing 22 cun of displays, operation keyboard, mouse
Mark, each 1 of industrial personal computer, uninterruptible power supply, pressure switch 3 are respectively arranged in each seawater pump discharge, for spare pump group
It is automatic to start, model：YWK-50-C, specification 0-0.5MPa set 0.2Mpa, pressure sensor 1 are installed on sea water pump
Outlet, for main sea water pump pressure remote indication and low pressure alarming；Model：YSZK-01G-C, specification 0-0.6MPa set
0.15MPa, temperature sensor 2 are respectively arranged in cooler seawer outlet and cooler water outlet, for frequency converter
PID control, model：WZPK-22I-C, specification Pt100, L=100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327839.6A CN108167170A (en) | 2017-12-13 | 2017-12-13 | A kind of frequency control center salt water cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327839.6A CN108167170A (en) | 2017-12-13 | 2017-12-13 | A kind of frequency control center salt water cooling system |
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| CN108167170A true CN108167170A (en) | 2018-06-15 |
Family
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| CN201711327839.6A Pending CN108167170A (en) | 2017-12-13 | 2017-12-13 | A kind of frequency control center salt water cooling system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733579A (en) * | 2019-03-05 | 2019-05-10 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Ship Central Cooling Water System and its control method and ship |
| CN109850104A (en) * | 2019-03-19 | 2019-06-07 | 蒋淑娇 | A kind of ship water circulation system water inlet multistage clear stream device |
| CN110282074A (en) * | 2019-07-15 | 2019-09-27 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Ship cooling line system variable working condition low noise configures regulation method |
| CN110805542A (en) * | 2019-09-09 | 2020-02-18 | 河源旗滨硅业有限公司 | Cooling water control method, device and system and computer readable medium |
| CN110985362A (en) * | 2019-11-06 | 2020-04-10 | 中水淮河规划设计研究有限公司 | Intelligent alternate working method for leakage drainage pump of pump station |
| CN110985364A (en) * | 2019-12-19 | 2020-04-10 | 芜湖航天特种电缆厂股份有限公司 | Backup pump self-starting system and method for cooling pump |
| CN112197402A (en) * | 2020-10-14 | 2021-01-08 | 苏州合卓智能科技有限公司 | Group control system of heating and cooling source system |
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| CN109733579A (en) * | 2019-03-05 | 2019-05-10 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Ship Central Cooling Water System and its control method and ship |
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| CN109850104A (en) * | 2019-03-19 | 2019-06-07 | 蒋淑娇 | A kind of ship water circulation system water inlet multistage clear stream device |
| CN110282074A (en) * | 2019-07-15 | 2019-09-27 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Ship cooling line system variable working condition low noise configures regulation method |
| CN110282074B (en) * | 2019-07-15 | 2020-08-04 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Variable working condition low noise configuration regulation and control method for ship cooling pipeline system |
| CN110805542A (en) * | 2019-09-09 | 2020-02-18 | 河源旗滨硅业有限公司 | Cooling water control method, device and system and computer readable medium |
| CN110985362A (en) * | 2019-11-06 | 2020-04-10 | 中水淮河规划设计研究有限公司 | Intelligent alternate working method for leakage drainage pump of pump station |
| CN110985364A (en) * | 2019-12-19 | 2020-04-10 | 芜湖航天特种电缆厂股份有限公司 | Backup pump self-starting system and method for cooling pump |
| CN112197402A (en) * | 2020-10-14 | 2021-01-08 | 苏州合卓智能科技有限公司 | Group control system of heating and cooling source system |
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Application publication date: 20180615 |
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