CN109733579A - Ship Central Cooling Water System and its control method and ship - Google Patents
Ship Central Cooling Water System and its control method and ship Download PDFInfo
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- CN109733579A CN109733579A CN201910164710.0A CN201910164710A CN109733579A CN 109733579 A CN109733579 A CN 109733579A CN 201910164710 A CN201910164710 A CN 201910164710A CN 109733579 A CN109733579 A CN 109733579A
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- 239000000498 cooling water Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 102
- 239000013505 freshwater Substances 0.000 claims abstract description 98
- 239000013535 sea water Substances 0.000 claims abstract description 79
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 230000001276 controlling effect Effects 0.000 claims description 9
- 239000002826 coolant Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 230000009885 systemic effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000003921 oil Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000005183 dynamical system Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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Abstract
The present invention provides a kind of ship Central Cooling Water System and its control method and ships, it is related to the technical field of marine engine, specifically, ship Central Cooling Water System includes seawater frequency conversion pump group, fresh water frequency conversion pump group, temperature control three-way valve, central cooler, branch pipe assembly, detection system and central managing and control system；The running frequency of seawater variable frequency power device and fresh water variable frequency power device is controlled by central managing and control system, the operation power of adjustable seawater frequency conversion pump group and fresh water frequency conversion pump group, on the basis of meeting the demand of ship needs cooling equipment or cooler, realize energy-efficient technical effect, the technical issues of flow adjusting can not be carried out by alleviating seawater cooling water system and cooling system of fresh water existing in the prior art, and the service life of the waste and Central Cooling Water System that cause the energy reduces；Central managing and control system controls temperature control three-way valve opening value, carries out temperature as safety precautions and flow is adjusted.
Description
Technical field
The present invention relates to marine engine technical fields, more particularly, to a kind of ship Central Cooling Water System and its control
Method and ship.
Background technique
Ship Central Cooling Water System is one of the important system for guaranteeing Ship Power Equipment safe and reliable operation；Traditional
The cooling water system of ship is made of seawater cooling water system and cooling system of fresh water, it is by central cooler first with sea
Water cools down fresh water, then fresh water is used to go other on cooling ship to need cooling equipment or cooler as cooling medium, so that
The temperature of entire dynamical system equipment is maintained in efficient working range, to guarantee to stablize normal work.
Ship Central Cooling Water System in the prior art, in order to guarantee that dynamical system is constantly in safest on ship
Temperature range is needed the Central Cooling Water System of ship always to be and is run with total power.
But ship is in the process of running, system other configurations device is constantly in maximum power operation, service life
It can reduce, cause the defect that the energy consumption of ship Central Cooling Water System in the prior art is high, utilization rate is low.
Summary of the invention
The purpose of the present invention is to provide a kind of ship Central Cooling Water System and its control method and ships, existing to alleviate
There is the technical problem that the service life of Central Cooling Water System in technology is low, energy consumption is high.
A kind of ship Central Cooling Water System provided by the invention, comprising: seawater frequency conversion pump group, fresh water frequency conversion pump group, temperature
Control triple valve, central cooler, branch pipe assembly, detection system and central managing and control system；
The seawater frequency conversion pump group is connected to the central cooler, and the central cooler outlet end passes through the temperature control
Triple valve is connected to the arrival end of the fresh water frequency conversion pump group, the outlet end of the fresh water frequency conversion pump group and the branch pipe assembly
Arrival end connection, and the outlet end of the branch pipe assembly is connected to the central cooler and the temperature control three-way valve respectively, with
The cooling water inside the branch pipe assembly is set to respectively enter to the central cooler and the fresh water frequency conversion pump group；
The fresh water frequency conversion pump group is provided with fresh water variable frequency power device, and the seawater frequency conversion pump group is provided with seawater frequency conversion
Power device, the center managing and control system are electrically connected with the fresh water variable frequency power device and the seawater variable frequency power device respectively
It connects；
The detection system is electrically connected with the central managing and control system, and the detection system goes out for detecting central cooler
The temperature of the cooling water at mouth end and the pressure of branch pipe assembly outlet end, and this temperature and pressure information is transferred in described
It entreats at managing and control system, the center managing and control system is corresponding to control the seawater variable frequency power device and fresh water variable frequency power dress
The running frequency set；
The temperature control three-way valve is electrically connected with the central managing and control system, and the central managing and control system is described for controlling
The aperture of temperature control three-way valve, and the central managing and control system is for the fresh water variable frequency power device and the seawater variable frequency power
The control instruction of device is prior to the control instruction for the temperature control three-way valve.
In preferred embodiments of the present invention, the detection system includes first sensor and second sensor；
The first sensor and second sensor are electrically connected with the central managing and control system, and the first sensor is set
It is placed in the outlet end of the central cooler, is transferred to institute for detecting the temperature information at this, and by this first temperature information
It states at central managing and control system, the corresponding running frequency for controlling the seawater variable frequency power device of center managing and control system；
The second sensor is set to the outlet end of the branch pipe assembly, for detecting the pressure information at this, and will
This pressure information is transferred at the central managing and control system, and the center managing and control system is corresponding to control the fresh water variable frequency power dress
The running frequency set.
In preferred embodiments of the present invention, the center control systemic presupposition has temperature threshold and pressure threshold, works as institute
Temperature information is stated less than the temperature threshold, and/or, the pressure information is less than the pressure threshold, center control system
The corresponding aperture for controlling the temperature control three-way valve of system.
It further include 3rd sensor in preferred embodiments of the present invention；The branch pipe assembly is connected to cooled equipment,
The 3rd sensor is set to the branch pipe assembly close to the outlet end of cooled equipment, for detecting cooled equipment export
The temperature information of the coolant liquid at end, and this temperature information is transferred at the central managing and control system, the center managing and control system
The corresponding running frequency for controlling the fresh water variable frequency power device.
It further include branch pipe regulating valve in preferred embodiments of the present invention；
The branch pipe regulating valve is set between the branch pipe assembly and the central cooler, and the branch pipe regulating valve
It is connected to the branch pipe assembly, for adjusting the flow inside the branch pipe assembly.
In preferred embodiments of the present invention, the branch pipe assembly includes multiple branch；
Each described branch is respectively communicated with corresponding cooler.
A kind of ship provided by the invention, including the ship Central Cooling Water System.
A kind of control method of ship Central Cooling Water System provided by the invention, comprising the following steps:
Default seawater frequency conversion pump group and fresh water frequency conversion pump group are run with minimum frequency；
The aperture of default temperature control three-way valve is maximum value；
Receive the temperature information for the cooling water that central cooler is conveyed to fresh water frequency conversion pump group；
According to the temperature information, the running frequency of the corresponding control seawater frequency conversion pump group of central managing and control system；
Receive the pressure information of the cooling water of branch pipe assembly outflow；
According to the pressure information, the running frequency of the corresponding control fresh water frequency conversion pump group of central managing and control system；
When seawater frequency conversion pump group and fresh water frequency conversion pump group are with the operation of minimum running frequency, and the temperature information detected
And/or pressure information is less than ship when needing the temperature threshold and/or pressure threshold of operating status, hollow managing and control system control temperature
Control the opening value of triple valve.
It is further comprising the steps of in preferred embodiments of the present invention:
Receive the basic information of the main unit load operation of ship operating status；
Receive the control information of the main unit load operation of ship speed-raising, reduction of speed or constant speed；
The fortune of seawater frequency conversion pump group is controlled before main unit load adjusting with the comparison of basic information according to the control information
Line frequency；
Central managing and control system according to vessel motion state for seawater frequency conversion pump group control instruction prior to according to fresh water
Control instruction of the temperature information of the cooling water of frequency conversion pump group conveying for seawater frequency conversion pump group.
In preferred embodiments of the present invention, the center managing and control system is provided with manual control interface, center control system
System can receive the information of man-machine interface, to control the running frequency of the fresh water frequency conversion pump group, seawater frequency conversion pump group, or control
The opening value of the temperature control three-way valve.
The beneficial effect of the embodiment of the present invention is:
A kind of ship Central Cooling Water System provided by the invention, comprising: seawater frequency conversion pump group, fresh water frequency conversion pump group, temperature
Control triple valve, central cooler, branch pipe assembly, detection system and central managing and control system；Become in central managing and control system control seawater
In the case where frequency power device and the running frequency of fresh water variable frequency power device, at this time the aperture of temperature control three-way valve be always for
Maximum opening, when central managing and control system controls the shape that seawater frequency conversion pump group and fresh water frequency conversion pump group are run with minimum running frequency
Under state, when being still unable to satisfy the operating status of ship, central managing and control system controls temperature control three-way valve opening value at this time, as peace
Full safeguard carries out the adjusting of flow.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Fig. 1 is that the branch pipe assembly of ship Central Cooling Water System provided in an embodiment of the present invention has the knot of branch pipe regulating valve
Structure schematic diagram；
Fig. 2 is the structural schematic diagram of ship Central Cooling Water System provided in an embodiment of the present invention；
Fig. 3 is the overall structure diagram of ship Central Cooling Water System provided in an embodiment of the present invention；
Fig. 4 is the control of the fresh water frequency conversion pump group of the control method of ship Central Cooling Water System provided in an embodiment of the present invention
Logic diagram processed；
Fig. 5 is the control of the seawater frequency conversion pump group of the control method of ship Central Cooling Water System provided in an embodiment of the present invention
Logic diagram processed；
Fig. 6 is the control of the temperature control three-way valve of the control method of ship Central Cooling Water System provided in an embodiment of the present invention
Logic diagram.
Icon: 100- seawater frequency conversion pump group；101- seawater variable frequency power device；200- fresh water frequency conversion pump group；201- fresh water
Variable frequency power device；300- temperature control three-way valve；400- central cooler；500- branch pipe assembly；600- detection system；601- first
Sensor；602- second sensor；800- pressure-detecting device；900- expansion tank；110- sea water tank；120- branch pipe is adjusted
Valve.
Specific embodiment
As shown in figures 1 to 6, the present embodiment provides a kind of ship Central Cooling Water Systems, comprising: seawater frequency conversion pump group 100,
Fresh water frequency conversion pump group 200, temperature control three-way valve 300, central cooler 400, branch pipe assembly 500, detection system 600 and center control
System；Seawater frequency conversion pump group 100 is connected to central cooler 400, and 400 outlet end of central cooler passes through temperature control three-way valve 300
It is connected to the arrival end of fresh water frequency conversion pump group 200, the outlet end of fresh water frequency conversion pump group 200 and the arrival end of branch pipe assembly 500 connect
It is logical, and the outlet end of branch pipe assembly 500 is connected to central cooler 400 and temperature control three-way valve 300 respectively, so that branch pipe assembly
Cooling water inside 500 can be respectively enterd to central cooler 400 and fresh water frequency conversion pump group 200；Fresh water frequency conversion pump group 200
It is provided with fresh water variable frequency power device 201, seawater frequency conversion pump group 100 is provided with seawater variable frequency power device 101, center control system
System is electrically connected with fresh water variable frequency power device 201 and seawater variable frequency power device 101 respectively.
Further, detection system 600 is electrically connected with central managing and control system, and detection system 600 is for detecting central cooling
The pressure of 500 outlet end of temperature and branch pipe assembly of the cooling water of 400 outlet end of device, and this temperature and pressure information is transferred to
At central managing and control system, the corresponding control seawater variable frequency power device 101 of central managing and control system and fresh water variable frequency power device 201
Running frequency；Temperature control three-way valve 300 is electrically connected with central managing and control system, and central managing and control system is for controlling temperature control three-way valve
300 aperture, and central managing and control system refers to the control of fresh water variable frequency power device 201 and seawater variable frequency power device 101
It enables prior to the control instruction for temperature control three-way valve 300.
Wherein, control system of the central managing and control system as ship, ship Central Cooling Water System provided in this embodiment
All control modes be that those skilled in the art can be known based on the internal control system of spot ship, the present embodiment
It is that the structure carried out for ship Central Cooling Water System is improved, therefore, the model and structure of central managing and control system are herein not
It repeats again.
As the main body of frequency control, the seawater variable frequency power device of seawater frequency conversion pump group 100 and fresh water frequency conversion pump group 200
101 and fresh water variable frequency power device 201 be provided with frequency converter.
Optionally, central managing and control system and seawater frequency conversion pump group 100, fresh water frequency conversion pump group 200 and temperature control three-way valve 300
Electric connection mode can be a variety of, such as: wireless signal transfer or wire signal transmitting etc., it is preferable that central managing and control system
Electric connection mode with seawater frequency conversion pump group 100, fresh water frequency conversion pump group 200 and temperature control three-way valve 300 is wireless signal transfer, excellent
Selection of land, the mode of wireless signal transfer are that local area network controls signal transmission.
Preferably, temperature control three-way valve 300 is electromagnetic temperature-control triple valve 300, more than 300 kinds of operation sides of electromagnetic temperature-control triple valve
Formula, such as: one-in-and-two-out, two into one go out or one-in-and-one-out the method for operation.
Central cooler 400 can be set two, and every central cooler 400 may include band pressure, thermometer
The titanium plate central cooler 400 of table and deflation facility is constituted, and the heat exchanging chamber of every central cooler 400 is total heat exchange amount
50%；On the basis of system heat load calculates, according to each heat gain from appliance and equipment summation in system under full load mode, matched with system
Two central coolers 400 are set, the 50% of the total heat exchange amount of every Zhan calculates, and the calculated value of every heat exchange amount is obtained, according to complete negative
Lotus discloses the pressure drop of the pipeline and cooler of parameter and branch pipe assembly 500, may thereby determine that and matches with marine system instantly
Efficient central cooler 400.
A kind of ship Central Cooling Water System provided in this embodiment, comprising: seawater frequency conversion pump group 100, fresh water variable frequency pump
Group 200, temperature control three-way valve 300, central cooler 400, branch pipe assembly 500, detection system 600 and central managing and control system；Pass through
Seawater variable frequency power device 101 and fresh water variable frequency power device is respectively adopted in seawater frequency conversion pump group 100 and fresh water frequency conversion pump group 200
201, the central managing and control system of the inside based on ship, can real-time detection central cooler 400 export cooling water temperature,
And after needing the pressure information of branch pipe assembly 500 of cooling equipment or cooler, sea is controlled by central managing and control system
The running frequency of water variable frequency power device 101 and fresh water variable frequency power device 201 carries out adjustable seawater frequency conversion pump group 100
With the operation power of fresh water frequency conversion pump group 200, on the basis of meeting ship and needing the demand of cooling equipment or cooler,
Energy-efficient technical effect is realized, alleviating seawater cooling water system and cooling system of fresh water existing in the prior art can not carry out
The technical issues of flow is adjusted, and the service life of the waste and Central Cooling Water System that cause the energy reduces.
Moreover, in the operation of central managing and control system control seawater variable frequency power device 101 and fresh water variable frequency power device 201
In the case where frequency, the aperture of temperature control three-way valve 300 is always for maximum opening, when central managing and control system controls seawater at this time
In the state that frequency conversion pump group 100 and fresh water frequency conversion pump group 200 are run with minimum running frequency, it is still unable to satisfy the fortune of ship
When row state, central managing and control system controls 300 opening value of temperature control three-way valve at this time, is adjusted as safety precautions.
On the basis of the above embodiments, in preferred embodiments of the present invention, detection system 600 includes first sensor
601 and second sensor 602；First sensor 601 and second sensor 602 are electrically connected with central managing and control system, and first passes
Sensor 601 is set to the outlet end of central cooler 400, for detecting the temperature information at this, and by this first temperature information
It is transferred at central managing and control system, the running frequency of the corresponding control seawater variable frequency power device 101 of central managing and control system；Second passes
Sensor 602 is set to the outlet end of branch pipe assembly 500, is transferred to for detecting the pressure information at this, and by this pressure information
At central managing and control system, the running frequency of the corresponding control fresh water variable frequency power device 201 of central managing and control system.
Optionally, first sensor 601 is set as temperature sensor, and second sensor 602 is set as pressure sensor, and
And the quantity of first sensor 601 can be specifically arranged according to multiple pipelines of central cooler 400, pressure sensor
Quantity according to the quantity of each branch and can summarize pipeline and be specifically arranged.
In preferred embodiments of the present invention, center control systemic presupposition has temperature threshold and pressure threshold, when temperature is believed
Breath is less than temperature threshold, and/or, pressure information is less than pressure threshold, the corresponding control temperature control three-way valve 300 of central managing and control system
Aperture.
Wherein, since there is different ship built-in systems different numerical value to be arranged, can for different ships according to
The requirement of national standard carries out preset temperature threshold and pressure threshold is specifically set.
In the present embodiment, temperature control three-way valve 300 is used as a safeguard measure, when central managing and control system determines seawater frequency conversion
The demand for being unable to satisfy branch pipe assembly 500 and equipment to be cooled of pump group 100 and fresh water frequency conversion pump group 200, and center control system
The judgment basis of system is then according to the comparison of above-mentioned temperature information and temperature threshold or above-mentioned pressure information and pressure threshold
The result of comparison.
It further include 3rd sensor in preferred embodiments of the present invention；Branch pipe assembly 500 is connected to cooled equipment,
3rd sensor is set to branch pipe assembly 500 close to the outlet end of cooled equipment, for detecting cooled equipment export end
The temperature information of coolant liquid, and this temperature information is transferred at central managing and control system, the corresponding control fresh water of central managing and control system
The running frequency of variable frequency power device 201.
Preferably, 3rd sensor can be temperature sensor, and the quantity of 3rd sensor can be according to each point
The cooled equipment of the Zhi Zhiguan connection and modes of more settings one are specifically arranged on gathering tube road.
It further include branch pipe regulating valve 120 in preferred embodiments of the present invention；It is total that branch pipe regulating valve 120 is set to branch pipe
At between 500 and central cooler 400, and branch pipe regulating valve 120 is connected to branch pipe assembly 500, for adjusting branch pipe assembly 500
Internal flow.
In preferred embodiments of the present invention, branch pipe assembly 500 includes multiple branch；Each branch difference
It is connected to corresponding cooler；Specifically, the equipment of branch connection includes host air cooler, host oil cooler, host
Atomizer cooler, gear-box oil cooler, adjustable propeller hydraulic oil cooler, intermediate bearing and multiple cooling fresh water are used
Family, multiple branch are aggregated into a main pipe rail and are connected to fresh water frequency conversion pump group 200.
In preferred embodiments of the present invention, branch pipe regulating valve 120 is provided with multiple, multiple difference of branch pipe regulating valves 120
It is connected to host oil cooler, high-temperature cooler and barometric condenser.
In preferred embodiments of the present invention, host oil cooler, high-temperature cooler and barometric condenser are respectively set
There is pressure sensor, each pressure sensor is electrically connected with central managing and control system, and each pressure sensor respectively corresponds detection
The pressure information of host oil cooler, high-temperature cooler or barometric condenser, and this pressure information is transferred to central control
System, the corresponding branch pipe regulating valve controlled on host oil cooler, high-temperature cooler or barometric condenser of central managing and control system
120 apertures.
Wherein, the aperture of branch pipe regulating valve 120 is according to different cooling water user demands, such as host oil cooler, height
Pressure sensor acquisition signal in warm cooler and barometric condenser automatically adjusts, and cooling water is avoided not need to cool down
Equipment on generate waste, be designed in this way especially significant for the high consumption equipment effect of cooling water；With point of barometric condenser
It is added at Zhi Zhiguan for branch pipe regulating valve 120, the branch pipe regulating valve 120 at this is steamed with barometric condenser exit water temperature or boiler
Vapor outlet pressure is, so that control flows through the cooling fresh-water flow of barometric condenser, to save cooling water resources according to being adjusted
While, so that marine steam system operates in reasonable design conditions.
In the present embodiment, central cooler 400, fresh water frequency conversion pump group 200 and branch pipe assembly 500 form the light of an enclosed
Water system is expanded by the fresh water after cooling of central cooler 400 by the fresh water for being additionally arranged liquid-level switch and low alarm function
Water tank 900 enters fresh water frequency conversion pump group 200 through fresh water general pipeline and adjusts through frequency conversion flow, by the further fine tuning to fresh water, stream
Cooling user terminal is needed to ship is each, wherein the branch line of branch pipe assembly 500 primarily enters following user terminal, cold
But the fresh water after, which can enter, cools down the air and lubricating oil of subsidiary engine through subsidiary engine aerial cooler and subsidiary engine oil cooler, makes
Air and lubricating oil are obtained in effective working range, to guarantee that subsidiary engine equipment can work normally；Fresh water after cooling can also be into
Enter to intermediate bearing, host air cooler, host oil cooler, main engine jacket water cooler, host air cooler and main engine jacket
Branch pipe regulating valve 120 at water cooler water outlet is optimized for direct-operated regulator, realizes and automatically controls；Cooling fresh water difference
It flows through jackshaft to accept insurance, host air device and host oil cooler flow through the process fresh water of host oil cooler, enter back into
Main engine jacket water cooler is to cooling host high-temperature jacket water, to guarantee each equipment stable operation；Fresh water after cooling is also
Host air compressor, central station of floating dock air conditioner, air conditioner for kitchen, compressor of air conditioner condenser, refrigeration compressor can be entered；Wherein
Branch pipe regulating valve 120 at compressor of air conditioner condenser water outlet is optimized for direct-operated regulator, realizes and automatically controls, cooling
Fresh water flows through above equipment to be allowed to normal table operation afterwards.
The present embodiment also provides a kind of ship, including above-mentioned ship Central Cooling Water System；Due to the present embodiment provides
Ship technical effect it is identical as the technical effect of ship Central Cooling Water System provided by the above embodiment, it is no longer superfluous herein
It states.
The present embodiment also provides a kind of control method of ship Central Cooling Water System, and it is real which is based on the present invention
The ship Central Cooling Water System of example offer is applied, specific method is the following steps are included: default seawater frequency conversion pump group 100 and fresh water become
Frequency pump group 200 is run with minimum frequency；The aperture of default temperature control three-way valve 300 is maximum value；Receive central cooler 400 to
The temperature information for the cooling water that fresh water frequency conversion pump group 200 conveys；According to the temperature information, the corresponding control sea of central managing and control system
The running frequency of water frequency conversion pump group 100；Receive the pressure information for the cooling water that branch pipe assembly 500 flows out；Believed according to the pressure
Breath, the running frequency of the corresponding control fresh water frequency conversion pump group 200 of central managing and control system；When seawater frequency conversion pump group 100 and fresh water frequency conversion
Pump group 200 is with the operation of minimum running frequency, and the temperature information and/or pressure information detected is less than ship and needs to run shape
When the temperature threshold and/or pressure threshold of state, the opening value of hollow managing and control system control temperature control three-way valve 300.
In preferred embodiments of the present invention, the basic information of the main unit load operation of ship operating status is received；It receives
The control information of the main unit load operation of ship speed-raising, reduction of speed or constant speed；According to the control information with the comparison of basic information,
Before main unit load is adjusted, the running frequency of seawater frequency conversion pump group 100 is controlled；Central managing and control system is according to vessel motion state pair
In seawater frequency conversion pump group 100 control instruction prior to the temperature information pair of the cooling water conveyed according to fresh water frequency conversion pump group 200
In the control instruction of seawater frequency conversion pump group 100.
The control method of the present embodiment ship Central Cooling Water System ship center based on the embodiment of the present invention is cold
But the design environment of water system increases in addition to according to the real-time delivery information of detection system 600 based on vessel motion state
Control judgement；By taking main unit load is promoted as an example, when main unit load is promoted by 30% to 80%, which will be passed to mesotube
Control system, central managing and control system send signal, seawater frequency conversion pump group 100 to the frequency-variable controller inside seawater frequency conversion pump group 100
Internal frequency-variable controller first will promote the revolving speed of seawater frequency conversion pump group 100 before main unit load promotion according to the signal,
After the blackout, the revolving speed of seawater frequency conversion pump group 100 is adjusted according to the signal of detection system 600 again.
In preferred embodiments of the present invention, central managing and control system is provided with manual control interface, central managing and control system energy
The information of man-machine interface is received, enough to control the running frequency of fresh water frequency conversion pump group 200, seawater frequency conversion pump group 100, or control temperature
Control the opening value of triple valve 300.
The control method of ship Central Cooling Water System provided in this embodiment becomes for seawater frequency conversion pump group 100, fresh water
Feasible system regulatory function after frequency pump group 200 and the adjustment of the control priority of temperature control three-way valve 300, can be in real-time detection
Central cooler 400 exports the temperature of cooling water, and needs the pressure of the branch pipe assembly 500 of cooling equipment or cooler
After information, the operation frequency of seawater variable frequency power device 101 and fresh water variable frequency power device 201 is controlled by central managing and control system
Rate carries out the operation power of adjustable seawater frequency conversion pump group 100 and fresh water frequency conversion pump group 200, needs to cool down meeting ship
Equipment or cooler demand on the basis of, realize energy-efficient technical effect, alleviate seawater existing in the prior art
Cooling water system and cooling system of fresh water can not carry out flow adjusting, cause the waste of the energy and making for Central Cooling Water System
The technical issues of with service life reduction.
Moreover, in the operation of central managing and control system control seawater variable frequency power device 101 and fresh water variable frequency power device 201
In the case where frequency, the aperture of temperature control three-way valve 300 is always for maximum opening, when central managing and control system controls seawater at this time
In the state that frequency conversion pump group 100 and fresh water frequency conversion pump group 200 are run with minimum running frequency, it is still unable to satisfy the fortune of ship
When row state, central managing and control system controls 300 opening value of temperature control three-way valve at this time, is adjusted as safety precautions.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of ship Central Cooling Water System characterized by comprising seawater frequency conversion pump group, fresh water frequency conversion pump group, temperature control three
Port valve, central cooler, branch pipe assembly, detection system and central managing and control system；
The seawater frequency conversion pump group is connected to the central cooler, and the outlet end of the central cooler passes through the temperature control three
Port valve is connected to the arrival end of the fresh water frequency conversion pump group, the outlet end of the fresh water frequency conversion pump group and entering for the branch pipe assembly
The connection of mouth end, and the outlet end of the branch pipe assembly is connected to the central cooler and the temperature control three-way valve respectively, so that
Cooling water inside the branch pipe assembly can be respectively enterd to the central cooler and the fresh water frequency conversion pump group；
The fresh water frequency conversion pump group is provided with fresh water variable frequency power device, and the seawater frequency conversion pump group is provided with seawater variable frequency power
Device, the center managing and control system are electrically connected with the fresh water variable frequency power device and the seawater variable frequency power device respectively；
The detection system is electrically connected with the central managing and control system, and the detection system is for detecting central cooler outlet end
Cooling water temperature and branch pipe assembly outlet end pressure, and this temperature and pressure information is transferred to the mesotube
At control system, the center managing and control system is corresponding to control the seawater variable frequency power device and the fresh water variable frequency power device
Running frequency；
The temperature control three-way valve is electrically connected with the central managing and control system, and the central managing and control system can control the temperature control
The aperture of triple valve, and the central managing and control system is for the fresh water variable frequency power device and the seawater variable frequency power device
Control instruction prior to the control instruction for the temperature control three-way valve.
2. ship Central Cooling Water System according to claim 1, which is characterized in that the detection system includes the first biography
Sensor and second sensor；
The first sensor and second sensor are electrically connected with the central managing and control system, and the first sensor is set to
The outlet end of the central cooler is transferred in described for detecting the temperature information at this, and by this first temperature information
It entreats at managing and control system, the corresponding running frequency for controlling the seawater variable frequency power device of center managing and control system；
The second sensor is set to the outlet end of the branch pipe assembly, presses for detecting the pressure information at this, and by this
Force information is transferred at the central managing and control system, the corresponding control fresh water variable frequency power device of center managing and control system
Running frequency.
3. ship Central Cooling Water System according to claim 2, which is characterized in that the center control systemic presupposition has
Temperature threshold and pressure threshold, when the temperature information is less than the temperature threshold, and/or, the pressure information is less than described
Pressure threshold, the corresponding aperture for controlling the temperature control three-way valve of center managing and control system.
4. ship Central Cooling Water System according to claim 1-3, which is characterized in that further include third sensing
Device；
The branch pipe assembly is connected to cooled equipment, and the 3rd sensor is set to the branch pipe assembly and sets close to cooled
Standby outlet end, the temperature information of the coolant liquid for detecting cooled equipment export end, and this temperature information is transferred to institute
It states at central managing and control system, the corresponding running frequency for controlling the fresh water variable frequency power device of center managing and control system.
5. ship Central Cooling Water System according to claim 4, which is characterized in that further include branch pipe regulating valve；
The branch pipe regulating valve is set between the branch pipe assembly and the central cooler, and the branch pipe regulating valve and institute
The connection of branch pipe assembly is stated, for adjusting the flow inside the branch pipe assembly.
6. ship Central Cooling Water System according to claim 5, which is characterized in that the branch pipe assembly includes multiple points
Zhi Zhiguan；
Each described branch is respectively communicated with corresponding cooler.
7. a kind of ship, which is characterized in that including ship Central Cooling Water System as claimed in any one of claims 1 to 6.
8. a kind of control method of ship Central Cooling Water System, which comprises the following steps:
Default seawater frequency conversion pump group and fresh water frequency conversion pump group are run with minimum frequency；
The aperture of default temperature control three-way valve is maximum value；
Receive the temperature information for the cooling water that central cooler is conveyed to fresh water frequency conversion pump group；
According to the temperature information, the running frequency of the corresponding control seawater frequency conversion pump group of central managing and control system；
Receive the pressure information of the cooling water of branch pipe assembly outflow；
According to the pressure information, the running frequency of the corresponding control fresh water frequency conversion pump group of central managing and control system；
When seawater frequency conversion pump group and fresh water frequency conversion pump group are with the operation of minimum running frequency, and the temperature information that detects and/or
When pressure information needs the temperature threshold and/or pressure threshold of operating status less than ship, hollow managing and control system controls temperature control three
The opening value of port valve.
9. the control method of ship Central Cooling Water System according to claim 8, which is characterized in that further include following step
It is rapid:
Receive the basic information of the main unit load operation of ship operating status；
Receive the control information of the main unit load operation of ship speed-raising, reduction of speed or constant speed；
The operation frequency of seawater frequency conversion pump group is controlled before main unit load adjusting with the comparison of basic information according to the control information
Rate；
Central managing and control system according to vessel motion state for seawater frequency conversion pump group control instruction prior to according to fresh water frequency conversion
Control instruction of the temperature information of the cooling water of pump group conveying for seawater frequency conversion pump group.
10. the control method of ship Central Cooling Water System according to claim 9, which is characterized in that the mesotube
Control system is provided with manual control interface, and central managing and control system can receive the information of man-machine interface, is become with controlling the fresh water
The running frequency of frequency pump group, seawater frequency conversion pump group, or the opening value of the control temperature control three-way valve.
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| CN201910164710.0A CN109733579B (en) | 2019-03-05 | 2019-03-05 | Ship central cooling water system, control method thereof and ship |
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| CN201910164710.0A CN109733579B (en) | 2019-03-05 | 2019-03-05 | Ship central cooling water system, control method thereof and ship |
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| CN110745229A (en) * | 2019-11-26 | 2020-02-04 | 南通旭日船用机械有限公司 | Plate cooler seawater frequency conversion control method and system |
| CN110906765A (en) * | 2019-12-03 | 2020-03-24 | 南通旭日船用机械有限公司 | Fresh water frequency conversion control method and system for plate cooler |
| CN112572752A (en) * | 2020-11-27 | 2021-03-30 | 沪东中华造船(集团)有限公司 | Frequency conversion energy-saving method for marine seawater cooling pump |
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| CN114572372A (en) * | 2022-02-18 | 2022-06-03 | 中国船舶重工集团公司第七一九研究所 | Ship constant-frequency pump cooling system, control method thereof, electronic device and storage medium |
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