CN110015393A - The control method and device of Central cooler of ship cooling water excitation heat exchange tube vibration - Google Patents
The control method and device of Central cooler of ship cooling water excitation heat exchange tube vibration Download PDFInfo
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- CN110015393A CN110015393A CN201910266956.9A CN201910266956A CN110015393A CN 110015393 A CN110015393 A CN 110015393A CN 201910266956 A CN201910266956 A CN 201910266956A CN 110015393 A CN110015393 A CN 110015393A
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- China
- Prior art keywords
- cooling water
- frequency
- water inlet
- inlet pipeline
- ship
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/30—Safety or protection arrangements; Arrangements for preventing malfunction for preventing vibrations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The embodiment of the present invention provides a kind of control method and device of Central cooler of ship cooling water excitation heat exchange tube vibration, according to the corresponding relationship for the gas phase score being previously obtained in the fluid pulsation pressure peak frequency for flowing into Central cooler of ship cooling water inlet pipe and inflow cooling water inlet pipeline, change the fluid pulsation pressure peak frequency of cooling water inlet pipeline by injecting gas to cooling water inlet pipeline, so that fluid pulsation pressure peak frequency avoids the major peaks frequency that seawater motivates in the structural natural frequencies and heat exchanger tube of heat exchanger tube, exchange heat pipe resonance caused by motivating so as to avoid Central cooler of ship cooling water, improve the security reliability and service life of Central cooler of ship, and it is not limited by the structure design of Central cooler of ship, it can satisfy the vibration control demand under the conditions of multi-state.
Description
Technical field
The present embodiments relate to Central cooler of ship technical field more particularly to a kind of Central cooler of ship are cooling
The control method and device of water excitation heat exchange tube vibration.
Background technique
In ship cooling device, cooling water is pooled to central cooler and from outboard after each user in cabin
Heat exchange occurs for seawater, to carry out cooling down operation.When cooling water inlet fluid pulsation pressure in the cabin of Central cooler of ship
Seawater fluid fluctuation pressure major peaks frequency is close or one in the structural natural frequencies or heat exchanger tube of crest frequency and heat exchanger tube
When cause, the heat exchanger tube that will lead to Central cooler of ship occurs resonance, reduces the security reliability of central cooler and uses the longevity
Life.
Currently, the vibration control of central cooler heat exchanger tube is generally carried out by cooler construction design, structure design
It is unable to adjust after the completion, therefore is unable to satisfy vibration control requirement of ship central cooling device under the conditions of multi-state, work as ship
The structural natural frequencies or heat exchanger tube of cooling water inlet fluid pulsation pressure peak and heat exchanger tube in the cabin of oceangoing ship central cooling device
When interior seawater fluid fluctuation pressure major peaks frequency is close or consistent, the heat exchanger tube of central cooler is easy to happen resonance, from
And the security reliability of central cooler is substantially reduced, and the service life of central cooler also greatly reduces.
Therefore, lack a kind of control method and device of Central cooler of ship cooling water excitation heat exchange tube vibration at present,
So that Central cooler of ship just can control the excitation heat exchanger tube vibration of Central cooler of ship cooling water without changing cooler construction
It is dynamic, meet the vibration control requirement under the conditions of multi-state.
Summary of the invention
So that current Central cooler of ship is solved to need to change cooler construction, it can control Central cooler of ship
The problem of cooling water excitation heat exchange tube vibration, the vibration control requirement not being able to satisfy under the conditions of multi-state, the embodiment of the present invention mentions
The control method and device of heat exchange tube vibration are motivated for a kind of Central cooler of ship cooling water.
In a first aspect, the embodiment of the present invention provides a kind of control of Central cooler of ship cooling water excitation heat exchange tube vibration
Method, this method include obtaining the fluid pulsation pressure peak frequency flowed into Central cooler of ship cooling water inlet pipeline；
If judgement knows that seawater motivates main in the structural natural frequencies or heat exchanger tube of fluid pulsation pressure peak frequency and heat exchanger tube
The absolute difference of crest frequency is less than preset threshold, then cold according to the fluid pulsation pressure peak frequency and inflow that are previously obtained
But the corresponding relationship of the gas phase score in water inlet pipeline determines the target gas phase score flowed into cooling water inlet pipeline, with
To the gas of cooling water inlet pipeline injection target gas phase score.
Second aspect, the embodiment of the present invention provide a kind of control of Central cooler of ship cooling water excitation heat exchange tube vibration
Device, the device include acquisition converting unit and determining injection unit；It is cold for obtaining inflow ship center to acquire converting unit
But the fluid pulsation pressure peak frequency in device cooling water inlet pipeline；If determine injection unit for judge know fluid pulsation
The difference for the major peaks frequency that seawater motivates in the structural natural frequencies or heat exchanger tube of pressure peak frequency and heat exchanger tube is absolute
Value is less than preset threshold, then according to the gas in the fluid pulsation pressure peak frequency and inflow cooling water inlet pipeline being previously obtained
The corresponding relationship of phase fraction determines the target gas phase score flowed into cooling water inlet pipeline, to infuse to cooling water inlet pipeline
Enter the gas of target gas phase score.
The third aspect, the embodiment of the present invention provide a kind of electronic equipment, the electronic equipment include: memory, processor and
The computer program that can be run on a memory and on a processor is stored, the instruction of processor caller is able to carry out first party
Central cooler of ship cooling water provided by any possible implementation motivates in the various possible implementations in face
The control method of heat exchange tube vibration.
Fourth aspect, the embodiment of the present invention provide a kind of non-transient computer readable storage medium, are stored thereon with calculating
Machine program, the computer program make computer execute any possible realization in the various possible implementations of first aspect
The control method of the excitation heat exchange tube vibration of Central cooler of ship cooling water provided by mode.
The embodiment of the present invention provides the control method and dress of a kind of Central cooler of ship cooling water excitation heat exchange tube vibration
It sets, is cooled down according to being previously obtained the fluid pulsation pressure peak frequency for flowing into Central cooler of ship cooling water inlet pipe and flowing into
The corresponding relationship of gas phase score in water inlet pipeline changes cooling water inlet by injecting gas to cooling water inlet pipeline
The fluid pulsation pressure peak frequency of pipeline so that fluid pulsation pressure peak frequency avoid heat exchanger tube structural natural frequencies and
The major peaks frequency that seawater motivates in heat exchanger tube, heat exchanger tube caused by being motivated so as to avoid Central cooler of ship cooling water
Resonate, improve the security reliability and service life of Central cooler of ship, and is not limited by Central cooler of ship
Structure design, can satisfy the vibration control demand under the conditions of multi-state.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the process of the control method of the Central cooler of ship cooling water excitation heat exchange tube vibration of the embodiment of the present invention
Schematic diagram；
Fig. 2 is the fluid pulsation pressure time domain data of the Central cooler of ship cooling water inlet pipeline of the embodiment of the present invention
Schematic diagram；
Fig. 3 is the fluid pulsation pressure frequency domain data of the Central cooler of ship cooling water inlet pipeline of the embodiment of the present invention
Schematic diagram；
Fig. 4 is the fluid pulsation pressure peak frequency of the Central cooler of ship cooling water inlet pipeline of the embodiment of the present invention
With the correspondence diagram of the gas phase score flowed into cooling water inlet pipeline；
Fig. 5 is the structure of the control device of the Central cooler of ship cooling water excitation heat exchange tube vibration of the embodiment of the present invention
Schematic diagram；
Fig. 6 is the structure of the control system of the Central cooler of ship cooling water excitation heat exchange tube vibration of the embodiment of the present invention
Schematic diagram；
Fig. 7 is the structural schematic diagram of the electronic equipment of the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the process of the control method of the Central cooler of ship cooling water excitation heat exchange tube vibration of the embodiment of the present invention
Schematic diagram, as shown in Figure 1, the embodiment of the present invention provides a kind of control of Central cooler of ship cooling water excitation heat exchange tube vibration
Method, this method include but is not limited to following steps:
S1, the fluid pulsation pressure peak frequency flowed into Central cooler of ship cooling water inlet pipeline is obtained.
Specifically, measured data shows that the gas that certain volume score is injected in fluid can change fluid pulsation pressure
Frequency spectrum.Therefore, the gas for certain volume score being injected into Central cooler of ship cooling water inlet pipeline can make fluid
Fluctuation pressure crest frequency avoids seawater fluid fluctuation pressure major peaks frequency in the structural natural frequencies or heat exchanger tube of heat exchanger tube
Rate, it is possible thereby to realize the control of Central cooler of ship cooling water excitation heat exchange tube vibration.Based on the above principles, in step S1
In, actual measurement first obtains the fluid pulsation pressure peak frequency flowed into Central cooler of ship cooling water inlet pipeline.This hair
Bright embodiment is not construed as limiting the concrete mode for obtaining or measuring.
If seawater in the structural natural frequencies or heat exchanger tube of fluid pulsation pressure peak frequency and heat exchanger tube is known in S2, judgement
The absolute difference of the major peaks frequency of excitation is less than preset threshold, then according to the fluid pulsation pressure peak frequency being previously obtained
Rate and the corresponding relationship for flowing into the gas phase score in cooling water inlet pipeline determine the target gas flowed into cooling water inlet pipeline
Phase fraction, to inject the gas of target gas phase score to cooling water inlet pipeline.
Specifically, due in ship cooling system, in cabin cooling water be pooled to after each user central cooler with
Heat exchange occurs for the seawater from heat exchanger tube outboard.Fluid pulsation pressure in Central cooler of ship cooling water inlet pipeline
Seawater fluid fluctuation pressure major peaks frequency is close or one in the structural natural frequencies or heat exchanger tube of crest frequency and heat exchanger tube
When cause, the heat exchanger tube that will lead to Central cooler of ship occurs resonance, reduces the security reliability of central cooler and uses the longevity
Life.Therefore, in step s 2, need to judge respectively fluid pulsation pressure peak frequency whether the structural natural frequencies with heat exchanger tube
It is close or consistent and whether close or consistent with the major peaks frequency of seawater excitation in heat exchanger tube.If fluid pulsation pressure
The absolute difference for the major peaks frequency that seawater motivates in the structural natural frequencies or heat exchanger tube of crest frequency and heat exchanger tube is small
In preset threshold, then show that fluid pulsation pressure peak frequency is that seawater swashs in structural natural frequencies or heat exchanger tube with heat exchanger tube
The major peaks frequency encouraged is close or consistent, then will lead to and resonate in heat exchanger tube.
Therefore, if fluid pulsation pressure peak frequency is that seawater motivates in structural natural frequencies or heat exchanger tube with heat exchanger tube
Major peaks frequency it is close or consistent, need to be adjusted fluid fluctuation pressure peak value, so that fluid pulsation pressure peak
It is kept off with the major peaks frequency that seawater in the structural natural frequencies or heat exchanger tube of heat exchanger tube motivates or inconsistent.The present invention is real
Example is applied when needing to adjust fluid pulsation pressure peak, injects gas using into Central cooler of ship cooling water inlet pipeline
Method.I.e. according to the gas phase score in the fluid pulsation pressure peak frequency and inflow cooling water inlet pipeline being previously obtained
Corresponding relationship determines the target gas phase score flowed into cooling water inlet pipeline, to inject target gas to cooling water inlet pipeline
The gas of phase fraction.Then judge that fluid pulsation pressure peak frequency is the structural natural frequencies or heat exchanger tube with heat exchanger tube again
Whether the major peaks frequency of interior seawater excitation is close or consistent, if keeping off or unanimously, showing fluid pulsation pressure peak
Frequency avoids the major peaks frequency that seawater motivates in the structural natural frequencies or heat exchanger tube of heat exchanger tube.
It should be noted that close to refer to: the two differs ratio within 5% or within 3Hz in the embodiment of the present invention,
The type for injecting gas includes: the gas not soluble in water such as air, nitrogen.
The control method of Central cooler of ship cooling water of embodiment of the present invention excitation heat exchange tube vibration, according to being previously obtained
It flows into the fluid pulsation pressure peak frequency of Central cooler of ship cooling water inlet pipe and flows into cooling water inlet pipeline
The corresponding relationship of gas phase score changes the fluid pulsation of cooling water inlet pipeline by injecting gas to cooling water inlet pipeline
Pressure peak frequency, so that fluid pulsation pressure peak frequency is avoided seawater in the structural natural frequencies and heat exchanger tube of heat exchanger tube and swashed
The major peaks frequency encouraged, heat exchange pipe resonance caused by motivating so as to avoid Central cooler of ship cooling water improve ship
The security reliability and service life of oceangoing ship central cooler, and it is not limited by the structure design of cooler, it can satisfy multiplexing
Vibration control demand under the conditions of condition.
Based on the above embodiment, it provides to obtain in a kind of step S1 and flow into Central cooler of ship cooling water inlet pipeline
Fluid pulsation pressure peak frequency method, including but not limited to following steps:
S11, the fluid pulsation pressure time domain data for acquiring Central cooler of ship cooling water inlet pipeline.
Specifically, the mode of acquisition can be by being arranged a fluctuation pressure on Central cooler of ship cooling water inlet pipeline
Sensor acquires the fluid pulsation pressure time domain number of Central cooler of ship cooling water inlet pipeline by oscillatory pressure pick-up
According to Fig. 2 is the fluid pulsation pressure time domain data signal of the Central cooler of ship cooling water inlet pipeline of the embodiment of the present invention
Figure, fluid pulsation pressure time domain data are as shown in Figure 2.
S12, the conversion that the fluid pulsation pressure time domain data is carried out to frequency domain data, obtain the fluid pulsation pressure
Crest frequency.Fig. 3 is the fluid pulsation pressure frequency domain number of the Central cooler of ship cooling water inlet pipeline of the embodiment of the present invention
According to schematic diagram, fluid pulsation pressure frequency domain data is as shown in Figure 3.
Based on the above embodiment, in step S2, according to the fluid pulsation pressure peak frequency being previously obtained and cooling is flowed into
The corresponding relationship of gas phase score in water inlet pipeline determines the target gas phase score flowed into cooling water inlet pipeline, including
But it is not limited to following steps:
Obtain the target stream of the major peaks frequency of seawater excitation in the structural natural frequencies and heat exchanger tube of avoiding heat exchanger tube
Body fluctuation pressure crest frequency；Based in the fluid pulsation pressure peak frequency and injection cooling water inlet pipeline being previously obtained
The corresponding relationship of gas phase score obtains in inflow cooling water inlet pipeline corresponding with target fluid fluctuation pressure crest frequency
Target gas phase score.
Specifically, fluid pulsation pressure peak frequency can be previously obtained and flow into the gas phase score in cooling water inlet pipeline
Corresponding relationship, the corresponding relationship can first pass through in advance historical data or sample data statistics obtain.Fig. 4 is the embodiment of the present invention
Gas in the fluid pulsation pressure peak frequency and inflow cooling water inlet pipeline of Central cooler of ship cooling water inlet pipeline
The correspondence diagram of phase fraction, the corresponding relationship can be indicated by mode shown in Fig. 4, that is, indicate different gas phase scores
Fluid pulsation pressure peak frequency corresponding to gas.Therefore, in the structural natural frequencies and heat exchanger tube in order to avoid heat exchanger tube
The major peaks frequency of seawater excitation, can obtain first as the target fluid fluctuation pressure crest frequency for adjusting target, the mesh
Mark the major peaks frequency of seawater excitation in the structural natural frequencies and heat exchanger tube of fluid pulsation pressure peak frequency and heat exchanger tube
It keeps off or inconsistent.Then, the corresponding gas phase point of the target fluid fluctuation pressure crest frequency is searched in corresponding relationship
Number is used as target gas phase score, is then based on the acquisition of target gas phase score and needs to inject.Finally by the gas of target gas phase score
It injects in cooling water inlet pipeline.In addition, the note of a gas can be arranged on Central cooler of ship cooling water inlet pipeline
The gas of target gas phase score is injected into cooling water inlet pipeline by entrance by the inlet.
Based on the above embodiment, the structural natural frequencies of heat pipe include multistage intrinsic frequency；Correspondingly, if stream is known in judgement
The absolute difference of the structural natural frequencies of body fluctuation pressure crest frequency and heat exchanger tube is less than preset threshold, comprising: if judgement
It is pre- to know that the absolute difference of any first natural frequency in fluid pulsation pressure peak frequency and multistage intrinsic frequency is less than
If threshold value.
Specifically, heat exchanger tube may include multistage intrinsic frequency, then, as long as fluid pulsation pressure peak frequency with it is any one
When rank intrinsic frequency is close or consistent, then it can confirm that the structural natural frequencies of fluid pulsation pressure peak frequency and heat exchanger tube are close
Or it is consistent.For example, the first natural frequency of a heat exchanger tube is 35Hz, second-order intrinsic frequency is 50Hz, and third rank is intrinsic
Frequency is 65Hz, close with the second-order intrinsic frequency of heat exchanger tube if fluid pulsation pressure peak frequency is 49.7Hz.This
When, fluid pulsation pressure peak frequency can be adjusted to 40Hz or 70Hz, so that the structural natural frequencies of heat exchanger tube are avoided,
The target fluid fluctuation pressure crest frequency for specifically needing to be adjusted to can be according to practical determination.
Based on the above embodiment, Fig. 5 is the Central cooler of ship cooling water excitation heat exchange tube vibration of the embodiment of the present invention
Control device structural schematic diagram, swash as shown in figure 5, the embodiment of the present invention also provides a kind of Central cooler of ship cooling water
The control device of heat exchange tube vibration is encouraged, which includes: acquisition converting unit 501 and determining injection unit 502, in which:
Converting unit 501 is acquired, for obtaining the fluid pulsation flowed into Central cooler of ship cooling water inlet pipeline
Pressure peak frequency.
Specifically, acquisition converting unit 501 first obtains the stream flowed into Central cooler of ship cooling water inlet pipeline
Body fluctuation pressure crest frequency.The embodiment of the present invention is not construed as limiting the concrete mode for obtaining or measuring.
Injection unit 502 is determined, if for judging to know that the structure of fluid pulsation pressure peak frequency and heat exchanger tube is intrinsic
The absolute difference for the major peaks frequency that seawater motivates in frequency or heat exchanger tube is less than preset threshold, then basis is previously obtained
Fluid pulsation pressure peak frequency and the corresponding relationship for flowing into the gas phase score in cooling water inlet pipeline determine and flow into cooling water
Target gas phase score in inlet ductwork, to inject the gas of target gas phase score to cooling water inlet pipeline.
In particular it is required that judging whether fluid pulsation pressure peak frequency is close with the structural natural frequencies of heat exchanger tube respectively
Or it is consistent and whether close or consistent with the major peaks frequency of seawater excitation in heat exchanger tube.If fluid pulsation pressure peak
The absolute difference for the major peaks frequency that seawater motivates in the structural natural frequencies or heat exchanger tube of frequency and heat exchanger tube is less than pre-
If threshold value, then show that fluid pulsation pressure peak frequency is that seawater motivates in structural natural frequencies or heat exchanger tube with heat exchanger tube
Major peaks frequency is close or consistent, then will lead to and resonate in heat exchanger tube.
Therefore, if according to determining that the judgement of injection unit 502 fluid pulsation pressure peak frequency is solid with the structure of heat exchanger tube
There is the major peaks frequency that seawater motivates in frequency or heat exchanger tube close or consistent, then fluid fluctuation pressure peak value is adjusted
It is whole, so that the major peaks frequency that seawater motivates in the structural natural frequencies or heat exchanger tube of fluid pulsation pressure peak and heat exchanger tube
It keeps off or inconsistent.The embodiment of the present invention determine injection unit 502 when needing to adjust fluid pulsation pressure peak, using to
The method of gas is injected in Central cooler of ship cooling water inlet pipeline.I.e. according to the fluid pulsation pressure peak being previously obtained
Frequency and the corresponding relationship for flowing into the gas phase score in cooling water inlet pipeline determine the target flowed into cooling water inlet pipeline
Gas phase score, to inject the gas of target gas phase score to cooling water inlet pipeline.Then fluid pulsation pressure spike is judged again
Value frequency is whether the major peaks frequency that seawater motivates in structural natural frequencies or heat exchanger tube with heat exchanger tube is close or consistent,
If keeping off or unanimously, showing that fluid pulsation pressure peak frequency avoids in the structural natural frequencies or heat exchanger tube of heat exchanger tube
The major peaks frequency of seawater excitation.
The control device of Central cooler of ship cooling water excitation heat exchange tube vibration provided in an embodiment of the present invention, according to pre-
It first obtains flowing into the fluid pulsation pressure peak frequency of Central cooler of ship cooling water inlet pipe and flows into cooling water inlet pipe
The corresponding relationship of gas phase score in road changes the stream of cooling water inlet pipeline by injecting gas to cooling water inlet pipeline
Body fluctuation pressure crest frequency, so that fluid pulsation pressure peak frequency is avoided in the structural natural frequencies and heat exchanger tube of heat exchanger tube
The major peaks frequency of seawater excitation, heat exchange pipe resonance caused by motivating so as to avoid Central cooler of ship cooling water mention
The high security reliability and service life of Central cooler of ship, and it is not limited by the structure design of cooler, Neng Gouman
Vibration control demand under the conditions of sufficient multi-state.
Wherein, acquisition converting unit 501 includes acquisition subelement and conversion subunit, in which: acquisition subelement is for obtaining
Take the fluid pulsation pressure time domain data flowed into Central cooler of ship cooling water inlet pipeline；Conversion subunit will be for that will flow
Body fluctuation pressure time domain data carries out the conversion of frequency domain data, obtains fluid pulsation pressure peak frequency.Further, it is determined that note
Entering unit 502 includes determining subelement and injection subelement, in which: it is solid to determine that subelement is used to obtain the structure for avoiding heat exchanger tube
There is the target fluid fluctuation pressure crest frequency for the major peaks frequency that seawater motivates in frequency and heat exchanger tube；And based on preparatory
The corresponding relationship of obtained fluid pulsation pressure peak frequency and the gas phase score in inflow cooling water inlet pipeline, acquisition and mesh
Mark the corresponding target gas phase score flowed into cooling water inlet pipeline of fluid pulsation pressure peak frequency；Injection subelement is used for
According to target gas phase score, to the gas of cooling water inlet pipeline injection target gas phase score.It acquires converting unit 501 and determines
The operational process of injection unit 502 and the operational process of above method embodiment are consistent, and details are not described herein again.
Based on the above embodiment, Fig. 6 is the Central cooler of ship cooling water excitation heat exchange tube vibration of the embodiment of the present invention
Control system structural schematic diagram, as shown in fig. 6, motivating heat exchange tube vibration to the Central cooler of ship cooling water below
Control device is applied in Central cooler of ship, to form the control of Central cooler of ship cooling water excitation heat exchange tube vibration
The structure of system processed is illustrated, wherein the acquisition subelement of the device is motivated in the Central cooler of ship cooling water and exchanged heat
It is oscillatory pressure pick-up 9 in the control system of tube vibration.
Oscillatory pressure pick-up 9 is set to cooling water inlet pipeline 2, oscillatory pressure pick-up 9 for acquire cooling water into
Fluid pulsation pressure time domain data in mouth pipeline 2, and fluid pulsation pressure time domain data is sent to controller 11；Controller
11 for obtaining the fluid vein flowed into Central cooler of ship cooling water inlet pipeline according to fluid pulsation pressure time domain data
Dynamic pressure crest frequency；If the structural natural frequencies or heat exchanger tube of fluid pulsation pressure peak frequency Yu heat exchanger tube 7 are known in judgement
Absolute difference between the major peaks frequency of interior seawater excitation is less than preset threshold, then the structure according to heat exchanger tube 7 is intrinsic
The gas phase score of the gas for the major peaks frequency injection cooling water inlet pipeline that seawater motivates in frequency and heat exchanger tube.
Firstly, the embodiment of the present invention is illustrated the principle of Central cooler of ship 3: the cabin of Central cooler of ship 3
By the seawater out of my cabin 5 that cooling water inlet pipeline 2 enters in Central cooler of ship 3, with heat exchanger tube 7 heat occurs for interior cooling water 1
Cooling water outlet pipeline 4 flows out Central cooler of ship 3 out of cabin after exchange.Seawater 5 passes through Central cooler of ship 3 out of my cabin
Sea intake pipeline 6 enters Central cooler of ship 3, carries out hot friendship by cooling water 1 in the cabin outside heat exchanger tube 7 and heat exchanger tube 7
Central cooler of ship 3 is flowed out from seawer outlet pipeline 8 after changing.
Oscillatory pressure pick-up 9, fluctuation pressure sensing are disposed on the cooling water inlet pipeline 2 of Central cooler of ship 3
Device 9 collects fluid pulsation pressure time domain data, and is transmitted to controller 11, the stream that controller 11 will receive by cable 10
Body fluctuation pressure time domain data is converted to frequency domain data, obtains the fluid pulsation pressure peak frequency in cooling water inlet pipeline,
Then further fluid pulsation pressure peak frequency is motivated with seawater in the structural natural frequencies of heat exchanger tube and heat exchanger tube respectively
Major peaks frequency be compared.If judgement know fluid pulsation pressure peak frequency and heat exchanger tube structural natural frequencies or
The absolute difference for the major peaks frequency that seawater motivates in heat exchanger tube is less than preset threshold, then according to the fluid vein being previously obtained
Dynamic pressure crest frequency and the corresponding relationship for flowing into the gas phase score in cooling water inlet pipeline determine and flow into cooling water inlet pipe
Then target gas phase score in road is injected from the gas inlet 12 on cooling water inlet pipeline 2 to cooling water inlet pipeline 2
The gas of target gas phase score, so that the fluid pulsation pressure peak frequency in cooling water inlet pipeline 2 avoids heat exchanger tube 7
Structural natural frequencies and heat exchanger tube 7 in seawater excitation major peaks frequency.
Two specific embodiments presented below change Central cooler of ship cooling water provided by the above embodiment excitation
The control method and device of heat pipe vibration are illustrated:
Embodiment one: the first natural frequency of heat exchanger tube is 35Hz, and second-order intrinsic frequency is 50HZ, and third rank is intrinsic
Frequency is 65Hz.As shown in Figure 3, fluid pulsation pressure spectrum crest frequency 49.7Hz, the second-order intrinsic frequency with heat exchanger tube
Almost the same, needing to adjust the fluid pulsation pressure spectrum in the cooling water inlet pipeline 2 of Central cooler of ship makes its peak value
Frequency avoids first three rank intrinsic frequency of heat exchanger tube.The gas of the injection gas of the cooling water inlet pipeline 2 of Central cooler of ship
Relationship between phase fraction and fluid pulsation pressure spectrum crest frequency is as shown in figure 4, referring to fig. 4, gas phase score is 0.5%
When, fluid pulsation pressure spectrum crest frequency is about 40Hz.By the cooling water inlet pipeline 2 for being arranged in Central cooler of ship
On gas inlet 12 inject and account for the gas of cooling water flow 0.5%, then can make fluid pulsation pressure spectrum crest frequency
First three the rank intrinsic frequency for avoiding heat exchanger tube reaches the resonance effect in heat exchanger tube caused by weakening Central cooler of ship cooling water
It answers, improves the security reliability of Central cooler of ship and the beneficial effect of service life.
Embodiment two: the major peaks frequency that seawater motivates in heat exchanger tube is 50Hz, and fluid pulsation is calculated according to Fig. 3
Pressure spectrum crest frequency 49.7Hz, the major peaks frequency motivated with seawater in heat exchanger tube is close, needs to adjust ship center
Fluid pulsation pressure spectrum makes its crest frequency to avoid outside heat exchanger tube cooling water in cabin and swash in cooler cooling water inlet pipeline
The major peaks frequency encouraged.The fluid pulsation pressure peak frequency of side of a ship Central cooler of ship cooling water inlet pipeline and inflow are cold
But the corresponding relationship of the gas phase score in water inlet pipeline is as shown in figure 4, according to Fig. 4, when gas phase score is 0.5%, fluid vein
Dynamic pressure spectral peak frequency is about 40Hz.Pass through the gas being arranged on the cooling water inlet pipeline 2 of Central cooler of ship
Inlet 12 injects the gas for accounting for cooling water flow 0.5%, then fluid pulsation pressure spectrum crest frequency can be made to avoid exchanging heat
The major peaks frequency of seawater excitation in managing, reaches and weakens in heat exchanger tube caused by 3 cooling water of Central cooler of ship motivates
The beneficial effect of resonance effects, the security reliability for improving Central cooler of ship 3 and service life.
The fluid pulsation pressure for the Central cooler of ship cooling water inlet pipeline that the embodiment of the present invention is obtained according to actual measurement
Crest frequency and the corresponding relationship for flowing into the gas phase score in cooling water inlet pipeline, by increasing the cold of Central cooler of ship
But the gas phase score of the gas of water inlet pipeline makes its peak value frequency to change fluid pulsation pressure spectrum in cooling water inlet pipeline
Rate avoids the major peaks frequency that seawater motivates in the structural natural frequencies and heat exchanger tube of heat exchanger tube, avoids since ship center is cold
But the cooling water excitation in device cooling water inlet pipeline causes the pipe resonance that exchanges heat.
Fig. 7 is the structural schematic diagram of the electronic equipment of the embodiment of the present invention, as shown in fig. 7, the embodiment of the invention provides
A kind of electronic equipment, the electronic equipment include: processor (processor) 701, communication interface (Communications
Interface) 702, memory (memory) 703 and communication bus 704, wherein processor 701, communication interface 702, storage
Device 703 completes mutual communication by communication bus 704.Processor 701 can call on memory 703 and can be in processor
The computer program run on 701 motivates heat exchanger tube to execute the Central cooler of ship cooling water of the various embodiments described above offer
The control method of vibration, for example, obtain the fluid pulsation pressure flowed into Central cooler of ship cooling water inlet pipeline
Crest frequency；If judgement knows that seawater swashs in the structural natural frequencies or heat exchanger tube of fluid pulsation pressure peak frequency and heat exchanger tube
The absolute difference for the major peaks frequency encouraged is less than preset threshold, then according to the fluid pulsation pressure peak frequency being previously obtained
With the corresponding relationship of the gas phase score flowed into cooling water inlet pipeline, the target gas phase flowed into cooling water inlet pipeline is determined
Score, to inject the gas of target gas phase score to cooling water inlet pipeline.
In addition, the logical order in above-mentioned memory 703 can be realized by way of SFU software functional unit and conduct
Independent product when selling or using, can store in a computer readable storage medium.Based on this understanding, originally
Substantially the part of the part that contributes to existing technology or the technical solution can be in other words for the technical solution of invention
The form of software product embodies, which is stored in a storage medium, including some instructions to
So that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation of the present invention
The all or part of the steps of example method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can be with
Store the medium of program code.
The embodiment of the present invention also provides a kind of non-transient computer readable storage medium, is stored thereon with computer program,
The computer program is implemented to carry out the various embodiments described above offer Central cooler of ship cooling water when being executed by processor swashs
Encourage the control method of heat exchange tube vibration, for example, obtain the fluid flowed into Central cooler of ship cooling water inlet pipeline
Fluctuation pressure crest frequency；If the structural natural frequencies or heat exchanger tube of fluid pulsation pressure peak frequency and heat exchanger tube are known in judgement
The absolute difference of the major peaks frequency of interior seawater excitation is less than preset threshold, then according to the fluid pulsation pressure being previously obtained
Crest frequency and the corresponding relationship for flowing into the gas phase score in cooling water inlet pipeline are determined and are flowed into cooling water inlet pipeline
Target gas phase score, to inject the gas of target gas phase score to cooling water inlet pipeline.
The embodiments such as electronic equipment described above are only schematical, wherein unit as illustrated by the separation member
It may or may not be physically separated, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Certain Part Methods of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of control method of Central cooler of ship cooling water excitation heat exchange tube vibration characterized by comprising
Obtain the fluid pulsation pressure peak frequency flowed into Central cooler of ship cooling water inlet pipeline；
If judgement knows that seawater swashs in the structural natural frequencies or heat exchanger tube of the fluid pulsation pressure peak frequency and heat exchanger tube
The absolute difference for the major peaks frequency encouraged is less than preset threshold, then according to the fluid pulsation pressure peak being previously obtained
Frequency and the corresponding relationship for flowing into the gas phase score in the cooling water inlet pipeline determine and flow into the cooling water inlet pipeline
In target gas phase score, to inject the gas of the target gas phase score to the cooling water inlet pipeline.
2. the method according to claim 1, wherein the acquisition flows into Central cooler of ship cooling water inlet
Fluid pulsation pressure peak frequency in pipeline, specifically includes:
Acquire the fluid pulsation pressure time domain data of the Central cooler of ship cooling water inlet pipeline；
The conversion that the fluid pulsation pressure time domain data is carried out to frequency domain data obtains the fluid pulsation pressure peak frequency
Rate.
3. the method according to claim 1, wherein according to the fluid pulsation pressure peak frequency being previously obtained
Rate and the corresponding relationship for flowing into the gas phase score in the cooling water inlet pipeline are determined and are flowed into the cooling water inlet pipeline
Target gas phase score, specifically include:
Obtain the mesh of the major peaks frequency of seawater excitation in the structural natural frequencies and the heat exchanger tube of avoiding the heat exchanger tube
Mark fluid pulsation pressure peak frequency；
Based on the fluid pulsation pressure peak frequency being previously obtained and flow into the gas phase point in the cooling water inlet pipeline
Several corresponding relationships obtains in the injection cooling water inlet pipeline corresponding with the target fluid fluctuation pressure crest frequency
Target gas phase score.
4. the method according to claim 1, wherein the structural natural frequencies of the heat pipe include multistage intrinsic frequency
Rate；Correspondingly, if judgement knows that the difference of the structural natural frequencies of the fluid pulsation pressure peak frequency and heat exchanger tube is absolute
Value is less than preset threshold, comprising:
If any first natural frequency in the fluid pulsation pressure peak frequency and the multistage intrinsic frequency is known in judgement
Absolute difference be less than preset threshold.
5. a kind of control device of Central cooler of ship cooling water excitation heat exchange tube vibration characterized by comprising acquisition turns
It changes unit and determines injection unit；
The acquisition converting unit is used to obtain the fluid pulsation pressure flowed into Central cooler of ship cooling water inlet pipeline
Crest frequency；
If the determining injection unit is for judging to know that the structure of the fluid pulsation pressure peak frequency and heat exchanger tube is intrinsic
The absolute difference for the major peaks frequency that seawater motivates in frequency or heat exchanger tube is less than preset threshold, then basis is previously obtained
The fluid pulsation pressure peak frequency and the corresponding relationship for flowing into the gas phase score in the cooling water inlet pipeline determine stream
Enter the target gas phase score in the cooling water inlet pipeline, to inject the target gas phase point to the cooling water inlet pipeline
Several gas.
6. device according to claim 5, which is characterized in that the determining injection unit includes determining subelement and injection
Subelement；
The determining subelement is motivated for obtaining seawater in the structural natural frequencies for avoiding the heat exchanger tube and the heat exchanger tube
Major peaks frequency target fluid fluctuation pressure crest frequency；And based on the fluid pulsation pressure spike being previously obtained
It is worth frequency and flows into the corresponding relationship of the gas phase score in the cooling water inlet pipeline, obtains and the target fluid pulsating pressure
The corresponding target gas phase score flowed into the cooling water inlet pipeline of power crest frequency；
The injection subelement is used for according to the target gas phase score, and Xiang Suoshu cooling water inlet pipeline injects the target gas
The gas of phase fraction.
7. device according to claim 5, which is characterized in that the acquisition converting unit includes acquisition subelement and conversion
Subelement；
When the acquisition subelement is used to obtain the fluid pulsation pressure flowed into Central cooler of ship cooling water inlet pipeline
Numeric field data；
The conversion subunit is used to carry out the fluid pulsation pressure time domain data conversion of frequency domain data, obtains the stream
Body fluctuation pressure crest frequency.
8. device according to claim 7, which is characterized in that the acquisition subelement is oscillatory pressure pick-up, described
Oscillatory pressure pick-up is set to Central cooler of ship cooling water inlet pipeline.
9. a kind of electronic equipment, comprising: memory, processor and storage are on a memory and the calculating that can run on a processor
Machine program, which is characterized in that the processor is realized as described in any one of Claims 1-4 when executing described program in ship
Entreat the control method of cooler cooling water excitation heat exchange tube vibration.
10. a kind of non-transient computer readable storage medium, is stored thereon with computer program, which is characterized in that the calculating
The Central cooler of ship cooling water excitation heat exchange as described in any one of Claims 1-4 is realized when machine program is executed by processor
The control method of tube vibration.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910266956.9A CN110015393B (en) | 2019-04-03 | 2019-04-03 | Control method and device for exciting vibration of heat exchange tube by cooling water of central cooler of ship |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910266956.9A CN110015393B (en) | 2019-04-03 | 2019-04-03 | Control method and device for exciting vibration of heat exchange tube by cooling water of central cooler of ship |
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| CN110015393B CN110015393B (en) | 2020-06-09 |
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| CN1380357A (en) * | 2001-03-30 | 2002-11-20 | 汎塑料株式会社 | Shock-absorbing resin composition |
| KR20120022124A (en) * | 2010-09-01 | 2012-03-12 | 현대중공업 주식회사 | Dynamic vibration absorber for pump using rubber mount |
| CN108430952A (en) * | 2015-12-30 | 2018-08-21 | 3M创新有限公司 | Acoustics active product |
| CN108750064A (en) * | 2018-05-14 | 2018-11-06 | 广州航海学院 | A kind of ship center cooling water multistage ratio control system and method |
| CN109417122A (en) * | 2016-06-29 | 2019-03-01 | 皇家飞利浦有限公司 | EAP actuator and driving method |
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| CN1380357A (en) * | 2001-03-30 | 2002-11-20 | 汎塑料株式会社 | Shock-absorbing resin composition |
| KR20120022124A (en) * | 2010-09-01 | 2012-03-12 | 현대중공업 주식회사 | Dynamic vibration absorber for pump using rubber mount |
| CN108430952A (en) * | 2015-12-30 | 2018-08-21 | 3M创新有限公司 | Acoustics active product |
| CN109417122A (en) * | 2016-06-29 | 2019-03-01 | 皇家飞利浦有限公司 | EAP actuator and driving method |
| CN108750064A (en) * | 2018-05-14 | 2018-11-06 | 广州航海学院 | A kind of ship center cooling water multistage ratio control system and method |
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| Publication number | Publication date |
|---|---|
| CN110015393B (en) | 2020-06-09 |
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