CN109488632B - Apparatus control method, device and computer readable storage medium - Google Patents
Apparatus control method, device and computer readable storage medium Download PDFInfo
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- CN109488632B CN109488632B CN201811319848.5A CN201811319848A CN109488632B CN 109488632 B CN109488632 B CN 109488632B CN 201811319848 A CN201811319848 A CN 201811319848A CN 109488632 B CN109488632 B CN 109488632B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
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- Control Of Electric Motors In General (AREA)
Abstract
Present disclose provides a kind of apparatus control method, device and computer readable storage mediums, are related to technical field of automatic control.Apparatus control method therein includes: the corresponding relationship between the running frequency of equipment motor and the pressure ratio of equipment container under the critical state that surge occurs for recording equipment, and pressure ratio is the ratio of condensing pressure and evaporating pressure；Using corresponding relationship, the critical operation frequency of the corresponding equipment motor of current pressure ratio of equipment container is determined, and determine the critical pressure ratio of the corresponding equipment container of current operation frequency of equipment motor；In the case where the difference for the current pressure ratio that the current operation frequency of equipment motor and the difference of critical operation frequency are less than first threshold and critical pressure ratio and equipment container is less than second threshold, the current operation frequency of equipment motor is improved.The disclosure can make equipment effectively be automatically prevented from surge.
Description
Technical field
This disclosure relates to technical field of automatic control, in particular to a kind of apparatus control method, device and computer can
Read storage medium.
Background technique
Surge is one that turbo-compressor (being also vane compressor) is occurred when flow is reduced to a certain extent
Vibration under kind damage.
Surge phenomenon can generate greatly harm to compressor arrangement.For example, Compressor Group can generate in surge process
High vibration, the components such as bearing, impeller can generate great damage.Meanwhile in surge process compressor electric motor operation electricity
Stream can also generate fluctuation, and motor, frequency converter will cause damage.
Relevant anti-asthma method of slight is to measure surge line during producing the equipment such as compressor, then in surge line
On the basis of formed anti-asthma line.
Summary of the invention
The disclosure solve a technical problem be, how it is significantly more efficient prevent equipment occur surge.
According to the one aspect of the embodiment of the present disclosure, a kind of apparatus control method is provided, comprising: recording equipment is breathed heavily
Under the critical state of vibration, corresponding relationship between the running frequency of equipment motor and the pressure ratio of equipment container, pressure ratio is condensation pressure
The ratio of power and evaporating pressure；Using corresponding relationship, the critical fortune of the corresponding equipment motor of current pressure ratio of equipment container is determined
Line frequency, and determine the critical pressure ratio of the corresponding equipment container of current operation frequency of equipment motor；In the current of equipment motor
The difference of running frequency and critical operation frequency is less than first threshold, and the difference of the current pressure ratio of critical pressure ratio and equipment container is less than
In the case where second threshold, the current operation frequency of equipment motor is improved.
In some embodiments, further includes: not small in the current operation frequency of equipment motor and the difference of critical operation frequency
In the case where first threshold, the current fluctuation frequency of detection device motor；If the current fluctuation frequency of equipment motor is greater than the
Three threshold values then improve the current operation frequency of equipment motor.
In some embodiments, if the current fluctuation frequency of equipment motor is greater than third threshold value, equipment motor is improved
If the current fluctuation frequency that current operation frequency includes: equipment motor is greater than third threshold value, the fortune of equipment motor at this time is recorded
Then line frequency and the pressure ratio of equipment container improve the current operation frequency of equipment motor to update corresponding relationship.
In some embodiments, further includes: if the current operation frequency of equipment motor does not increase within a preset time,
Open the hot gas bypass valve of equipment.
In some embodiments, further includes: within a preset range whether the current pressure ratio of detection device container；If equipment is held
The current pressure ratio of device within a preset range, then executes apparatus control method above-mentioned.
In some embodiments, further includes: if the current pressure ratio of equipment container is not within a preset range, generating device
Anti-asthma line；Using anti-asthma line, the minimum running frequency of the corresponding equipment motor of current pressure ratio of equipment container is determined；If equipment is electric
The current operation frequency of machine is less than minimum running frequency, then improves the current operation frequency of equipment motor to minimum operation frequency
Rate.
In some embodiments, further includes: if the current operation frequency of equipment motor does not increase within a preset time,
Open the hot gas bypass valve of equipment.
According to the other side of the embodiment of the present disclosure, a kind of plant control unit is provided, comprising: corresponding relationship record
Module is configured as: recording equipment occurs under the critical state of surge, the running frequency of equipment motor and the pressure ratio of equipment container
Between corresponding relationship, pressure ratio be condensing pressure and evaporating pressure ratio；Frequency pressure ratio determining module, is configured as: utilizing
Corresponding relationship determines the critical operation frequency of the corresponding equipment motor of current pressure ratio of equipment container, and determines equipment motor
The critical pressure ratio of the corresponding equipment container of current operation frequency；Running frequency improves module, is configured as: in working as equipment motor
The difference of preceding running frequency and critical operation frequency is less than first threshold, and the difference of the current pressure ratio of critical pressure ratio and equipment container is small
In the case where second threshold, the current operation frequency of equipment motor is improved.
In some embodiments, further include vibration frequency detection module, be configured as: in the current operation frequency of equipment motor
In the case that the difference of rate and critical operation frequency is not less than first threshold, the current fluctuation frequency of detection device motor；Operation frequency
If the current fluctuation frequency that rate raising module is also configured to equipment motor is greater than third threshold value, working as equipment motor is improved
Preceding running frequency.
In some embodiments, if running frequency improve module be also configured to equipment motor current fluctuation frequency it is big
In third threshold value, then the running frequency of equipment motor at this time and the pressure ratio of equipment container are recorded to update corresponding relationship, is then mentioned
The current operation frequency of high equipment motor.
In some embodiments, further include the first hot gas bypass valve opening module, be configured as: if setting within a preset time
The current operation frequency of standby motor does not increase, then opens the hot gas bypass valve of equipment.
In some embodiments, further include current pressure ratio judgment module, be configured as: the current pressure ratio of detection device container
Whether within a preset range；If the current pressure ratio of equipment container is within a preset range, plant control unit executes above-mentioned set
Standby control method.
In some embodiments, further includes: anti-asthma line generation module, if the current pressure ratio for being configured as equipment container does not exist
In preset range, then the anti-asthma line of generating device；Running frequency determining module is configured as determining that equipment is held using anti-asthma line
The minimum running frequency of the corresponding equipment motor of current pressure ratio of device；If running frequency improves module and is also configured to equipment electricity
The current operation frequency of machine is less than minimum running frequency, then improves the current operation frequency of equipment motor to minimum operation frequency
Rate.
In some embodiments, further include the second hot gas bypass valve opening module, be configured as: if setting within a preset time
The current operation frequency of standby motor does not increase, then opens the hot gas bypass valve of equipment.
According to the another aspect of the embodiment of the present disclosure, another plant control unit is provided, comprising: memory；With
And it is coupled to the processor of memory, processor is configured as executing equipment above-mentioned based on instruction stored in memory
Control method.
According to another aspect of the embodiment of the present disclosure, a kind of computer readable storage medium is provided, wherein computer
Readable storage medium storing program for executing is stored with computer instruction, and instruction realizes apparatus control method above-mentioned when being executed by processor.
The disclosure can make equipment effectively be automatically prevented from surge.
By the detailed description referring to the drawings to the exemplary embodiment of the disclosure, the other feature of the disclosure and its
Advantage will become apparent.
Detailed description of the invention
In order to illustrate more clearly of the embodiment of the present disclosure or technical solution in the prior art, 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 only this
Disclosed some embodiments without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 shows the flow diagram of the apparatus control method of some embodiments of the disclosure.
Fig. 2 shows the flow diagrams of the apparatus control method of the disclosure other embodiments.
Fig. 3 shows the flow diagram of the apparatus control method of the other embodiment of the disclosure.
Fig. 4 shows the structural schematic diagram of the plant control unit of some embodiments of the disclosure.
Fig. 5 shows the structural schematic diagram of the plant control unit of the disclosure other embodiments.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present disclosure, the technical solution in the embodiment of the present disclosure is carried out clear, complete
Site preparation description, it is clear that described embodiment is only disclosure a part of the embodiment, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the disclosure and its application or making
Any restrictions.Based on the embodiment in the disclosure, those of ordinary skill in the art are not making creative work premise
Under all other embodiment obtained, belong to the disclosure protection range.
Inventor is the study found that surge line is to carry out data by pumping point to be fitted.In the condensation of equipment container
Under the particularly large or small operating condition of the ratio (abbreviation pressure ratio) of pressure and evaporating pressure, surge line is for equipment under surging condition
The fitting of operating parameter values is not accurate enough.For example, the operating condition of design is that pressure ratio is equal to 3.5, after surge line fitting data, when
Equipment operate in operating condition be pressure ratio be equal to 1.6 when, surge line fitting equipment motor running frequency and equipment motor reality
About more than ten hertz of surge running frequency deviation.Therefore, even if equipment carries out work based on parameter value represented by the point on anti-asthma line
Make, surge still can occur, to the case where anti-surge failure occur.
In view of the above problems, present disclose provides a kind of apparatus control method significantly more efficient equipment can be prevented
Surge.
Fig. 1 is combined to describe some embodiments of disclosure apparatus control method first.
Fig. 1 shows the flow diagram of the apparatus control method of some embodiments of the disclosure.As shown in Figure 1, this implementation
Example includes step S102~step S110.
In step s 102, under the critical state of recording equipment generation surge, the running frequency and equipment of equipment motor are held
Corresponding relationship between the pressure ratio of device.
Wherein, the critical state of surge occurs for equipment, refers to that surge, such as the current fluctuation width of equipment just occur for equipment
Degree is just greater than preset current value.The pressure ratio of equipment container is the condensing pressure of equipment container and the ratio of evaporating pressure.
In step S104, using the corresponding relationship, facing for the corresponding equipment motor of current pressure ratio of equipment container is determined
Boundary's running frequency, and determine the critical pressure ratio of the corresponding equipment container of current operation frequency of equipment motor.
For example, equipment motor can feed back current operation frequency to equipment mainboard in real time, evaporating pressure sensor can be real
When current evaporating pressure is fed back to equipment mainboard, condensing pressure sensor can feed back current condensation to equipment mainboard in real time
Pressure, equipment mainboard can calculate current pressure ratio according to current evaporating pressure and condensing pressure.Utilize equipment container
Current pressure ratio inquires the corresponding relationship, the critical operation frequency of the corresponding equipment motor of current pressure ratio of available equipment container
Rate；The corresponding relationship, the current operation frequency pair of available equipment motor are inquired using the current operation frequency of equipment motor
The critical pressure ratio for the equipment container answered.
In step s 106, whether the difference of the current operation frequency and critical operation frequency that judge equipment motor is less than first
Threshold value.If so, thening follow the steps S108；If it is not, then not carrying out Anti-surge Control to equipment.
Wherein, the minimum value of first threshold is 0, and specific value can be configured according to experimental result or empirical value.
In step S108, judge whether the difference of the current pressure ratio of critical pressure ratio and equipment container is less than second threshold.If
It is to then follow the steps S110；If it is not, then not carrying out Anti-surge Control to equipment.
Wherein, the minimum value of second threshold is 0, and specific value can be configured according to experimental result or empirical value.
In step s 110, the current operation frequency of equipment motor is improved.
Equipment motor current operation frequency and critical operation frequency difference be less than first threshold, and critical pressure ratio with set
In the case that the difference of the current pressure ratio of standby container is less than second threshold, equipment can judge that surge occurs in itself.It improves every time
When the current operation frequency of equipment motor, the amplitude of raising can be 1 the percent of the maximum frequency of equipment motor.
In some embodiments, which further includes step S112~step S114.
In step S112, whether the current operation frequency for detecting equipment motor within a preset time increases.If so, not
Further Anti-surge Control is carried out to equipment；If it is not, thening follow the steps S114.
In step S114, the hot gas bypass valve of equipment is opened.
After opening hot gas bypass valve, evaporating pressure can be increased, and condensing pressure can reduce, and the current pressure ratio of equipment container can drop
It is low.
The running frequency of equipment motor and the pressure ratio of equipment container when above-described embodiment is able to record generation surge, and
Equipment changes working condition when running next time to the operating condition automatically and avoids surge, so that equipment be made effectively to be automatically prevented from surge.
Meanwhile in apparatus control method provided by the above embodiment, due to the running frequency of equipment motor and the pressure ratio of equipment container
It is more nearly working status parameter when surge occurs for equipment, therefore can effectively widen parameter area when equipment work.Ability
Field technique personnel should be understood that above-described embodiment can be applied particularly to the equipment such as centrifugal refrigerating machines.
Other embodiments of disclosure apparatus control method are described below with reference to Fig. 2.
Fig. 2 shows the flow diagrams of the apparatus control method of the disclosure other embodiments.As shown in Fig. 2, this reality
Applying example includes step S202~step S214.Wherein, step S207, step S209 is newly-increased on the basis of embodiment shown in Fig. 1
The step of, step S102~step S114 that remaining step is referred to respectively in embodiment illustrated in fig. 1 is implemented.
In step S202, recording equipment occurs under the critical state of surge, and the running frequency and equipment of equipment motor are held
Corresponding relationship between the pressure ratio of device.
In step S204, using the corresponding relationship, facing for the corresponding equipment motor of current pressure ratio of equipment container is determined
Boundary's running frequency, and determine the critical pressure ratio of the corresponding equipment container of current operation frequency of equipment motor.
In step S206, whether the difference of the current operation frequency and critical operation frequency that judge equipment motor is less than first
Threshold value.
If so, thening follow the steps S208；If it is not, thening follow the steps S207.
In step S208, judge whether the difference of the current pressure ratio of critical pressure ratio and equipment container is less than second threshold.
If so, thening follow the steps S210；If it is not, then not carrying out Anti-surge Control to equipment.
In step S207, whether the current fluctuation frequency of detection device motor is greater than third threshold value.If so, executing step
Rapid S210；If it is not, then not carrying out Anti-surge Control to equipment.
For example, can in preset data collection cycle detection device motor current fluctuation number, carry out estimation device
The current fluctuation frequency of motor.Since the work such as equipment absorbing gas belt liquid, loading and unloading may also cause the current wave of equipment motor
Dynamic, the current fluctuation frequency of detection device motor is in order to which the normal work that surge and equipment are occurred for equipment distinguishes.This
Field is it should be understood to the one skilled in the art that the specific value of aforementioned preset data collection cycle and third threshold value can be according to experiment
As a result or empirical value is configured.
In some embodiments, after executing step S207, step S209 can also be first carried out and execute step S210 again.?
In step S209, record at this time the running frequency of equipment motor and the pressure ratio of equipment container to update corresponding relationship.
In step S210, the current operation frequency of equipment motor is improved.
In step S212, whether the current operation frequency for detecting equipment motor within a preset time increases.If so, not
Further Anti-surge Control is carried out to equipment；If it is not, thening follow the steps S214.
In step S214, the hot gas bypass valve of equipment is opened.
In above-described embodiment, whether the current fluctuation frequency by judging equipment motor is larger, can judge that equipment is
No generation surge.If surge occurs, the pressure ratio of the running frequency of equipment motor and equipment container at this time, more new equipment hair are recorded
Under the critical state of raw surge, the corresponding relationship between the running frequency of equipment motor and the pressure ratio of equipment container, so as to subsequent
More accurately prevent the generation of surge.Meanwhile the hot gas of the current operation frequency by improving equipment motor or unlatching equipment
The modes such as by-passing valve prevent equipment from currently continuing that surge occurs.
The other embodiment of disclosure apparatus control method is described below with reference to Fig. 3.
Fig. 3 shows the flow diagram of the apparatus control method of the other embodiment of the disclosure.As shown in figure 3, this reality
Applying example includes step S300~step S322.
In step S300, within a preset range whether the current pressure ratio of detection device container.
Wherein, which refers to the case where very big or very little, is referred to as extreme pressure ratio.For example, preset range
It may be greater than the 4th threshold value or less than the 5th threshold value, wherein the 5th threshold value is much smaller than the 4th threshold value, the 4th threshold value and the 5th
The specific value of threshold value can be configured according to experimental result or empirical value.
If so, thening follow the steps S302~step S314.Step S302~step S314 is referred to real shown in Fig. 2 respectively
Step S202~step S214 in example is applied to implement.
If it is not, thening follow the steps S316~step S326.
In step S316, the anti-asthma line of generating device.
In step S318, using anti-asthma line, the minimum fortune of the corresponding equipment motor of current pressure ratio of equipment container is determined
Line frequency.
In step s 320, judge whether the current operation frequency of equipment motor is less than the minimum running frequency.If so,
Execute step S322；If it is not, then not carrying out Anti-surge Control to equipment.
In step S322, the current operation frequency of equipment motor is improved to minimum running frequency.
Above mentioned embodiment provide two kinds of anti-surge modes.It, can by the fitting of anti-asthma line for the operating condition of positive normal pressure ratio
The running frequency of the equipment motor of surge and the pressure ratio of equipment container are prevented, the current operation frequency of equipment motor is made to be higher than equipment
The current pressure ratio of container is higher than the minimum running frequency of corresponding equipment motor, to prevent from preventing under the operating condition of positive normal pressure ratio
Surge occurs for equipment.Anti-asthma line is then not provided with for the operating condition of extreme pressure ratio, but records the fortune of equipment motor when surge occurs
The pressure ratio of line frequency and equipment container changes working condition when equipment is run to the operating condition next time automatically and avoids surge.It is logical
The pressure ratio for crossing equipment container selects different anti-surge modes, can effectively widen parameter area when equipment work, while improving anti-
The accuracy of surge further decreases the probability that surge occurs.
The plant control unit of some embodiments of the disclosure is described below with reference to Fig. 4.
Fig. 4 shows the structural schematic diagram of the plant control unit of some embodiments of the disclosure.As shown in figure 4, this implementation
Example in plant control unit 40 include:
Corresponding relationship logging modle 402, is configured as: recording equipment occurs under the critical state of surge, equipment motor
Corresponding relationship between running frequency and the pressure ratio of equipment container, pressure ratio are the ratio of condensing pressure and evaporating pressure；
Frequency pressure ratio determining module 404, is configured as: utilizing corresponding relationship, determines that the current pressure ratio of equipment container is corresponding
Equipment motor critical operation frequency, and determine equipment motor the corresponding equipment container of current operation frequency critical pressure
Than；
Running frequency improve module 406, be configured as: equipment motor current operation frequency and critical operation frequency it
In the case that difference is less than first threshold, and the difference of the current pressure ratio of critical pressure ratio and equipment container is less than second threshold, raising is set
The current operation frequency of standby motor.
The running frequency of equipment motor and the pressure ratio of equipment container when above-described embodiment is able to record generation surge, and
Equipment changes working condition when running next time to the operating condition automatically and avoids surge, so that equipment be made effectively to be automatically prevented from surge.
Meanwhile in apparatus control method provided by the above embodiment, due to the running frequency of equipment motor and the pressure ratio of equipment container
It is more nearly working status parameter when surge occurs for equipment, therefore can effectively widen parameter area when equipment work.Ability
Field technique personnel should be understood that above-described embodiment can be applied particularly to the equipment such as centrifugal refrigerating machines.
In some embodiments, further include vibration frequency detection module 408, be configured as: in the current fortune of equipment motor
In the case that the difference of line frequency and critical operation frequency is not less than first threshold, the current fluctuation frequency of detection device motor；Fortune
If the current fluctuation frequency that line frequency raising module is also configured to equipment motor is greater than third threshold value, equipment motor is improved
Current operation frequency.
In some embodiments, if running frequency improves the current fluctuation frequency that module 406 is also configured to equipment motor
Greater than third threshold value, then the running frequency of equipment motor at this time and the pressure ratio of equipment container are recorded to update corresponding relationship, then
Improve the current operation frequency of equipment motor.
In above-described embodiment, whether the current fluctuation frequency by judging equipment motor is larger, can judge that equipment is
No generation surge.If surge occurs, the pressure ratio of the running frequency of equipment motor and equipment container at this time, more new equipment hair are recorded
Under the critical state of raw surge, the corresponding relationship between the running frequency of equipment motor and the pressure ratio of equipment container, so as to subsequent
More accurately prevent the generation of surge.Meanwhile the hot gas of the current operation frequency by improving equipment motor or unlatching equipment
The modes such as by-passing valve prevent equipment from currently continuing that surge occurs.
In some embodiments, further include the first hot gas bypass valve opening module 410, be configured as: if in preset time
The current operation frequency of interior equipment motor does not increase, then opens the hot gas bypass valve of equipment.
In some embodiments, further include current pressure ratio judgment module 400, be configured as: detection device container it is current
Within a preset range whether pressure ratio；If the current pressure ratio of equipment container is within a preset range, plant control unit is above-mentioned to be set
Standby control method.
In some embodiments, further includes: anti-asthma line generation module 412, if being configured as the current pressure ratio of equipment container
Not within a preset range, then the anti-asthma line of generating device；Running frequency determining module 414 is configured as determining using anti-asthma line
The minimum running frequency of the corresponding equipment motor of current pressure ratio of equipment container；Running frequency improves module 406 and is also configured to
If the current operation frequency of equipment motor is less than minimum running frequency, the current operation frequency of equipment motor is improved to minimum
Running frequency.
In some embodiments, further include the second hot gas bypass valve opening module 416, be configured as: if in preset time
The current operation frequency of interior equipment motor does not increase, then opens the hot gas bypass valve of equipment.
Above mentioned embodiment provide two kinds of anti-surge modes.It, can by the fitting of anti-asthma line for the operating condition of positive normal pressure ratio
The running frequency of the equipment motor of surge and the pressure ratio of equipment container are prevented, the current operation frequency of equipment motor is made to be higher than equipment
The current pressure ratio of container is higher than the minimum running frequency of corresponding equipment motor, to prevent from preventing under the operating condition of positive normal pressure ratio
Surge occurs for equipment.Anti-asthma line is then not provided with for the operating condition of extreme pressure ratio, but records the fortune of equipment motor when surge occurs
The pressure ratio of line frequency and equipment container changes working condition when equipment is run to the operating condition next time automatically and avoids surge.It is logical
The pressure ratio for crossing equipment container selects different anti-surge modes, can effectively widen parameter area when equipment work, while improving anti-
The accuracy of surge further decreases the probability that surge occurs.
Fig. 5 shows the structural schematic diagram of the plant control unit of the disclosure other embodiments.As shown in figure 5, the reality
The plant control unit 50 for applying example includes: memory 510 and the processor 520 for being coupled to the memory 510, processor 520
It is configured as executing the apparatus control method in aforementioned any some embodiments based on the instruction being stored in memory 510.
Wherein, memory 510 is such as may include system storage, fixed non-volatile memory medium.System storage
Device is for example stored with operating system, application program, Boot loader (Boot Loader) and other programs etc..
Plant control unit 50 can also include input/output interface 530, network interface 540, memory interface 550 etc..This
It can for example be connected by bus 560 between a little interfaces 530,540,550 and memory 510 and processor 520.Wherein, defeated
Enter output interface 530 and provides connecting interface for input-output equipment such as display, mouse, keyboard, touch screens.Network interface 540
Connecting interface is provided for various networked devices.The external storages such as memory interface 550 is SD card, USB flash disk provide connecting interface.
The disclosure further includes a kind of computer readable storage medium, is stored thereon with computer instruction, and the instruction is processed
Device realizes the apparatus control method in aforementioned any some embodiments when executing.
It should be understood by those skilled in the art that, embodiment of the disclosure can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the disclosure
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the disclosure, which can be used in one or more,
The calculating implemented in non-transient storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) can be used
The form of machine program product.
The disclosure is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present disclosure
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The foregoing is merely the preferred embodiments of the disclosure, not to limit the disclosure, all spirit in the disclosure and
Within principle, any modification, equivalent replacement, improvement and so on be should be included within the protection scope of the disclosure.
Claims (16)
1. a kind of apparatus control method characterized by comprising
Recording equipment occurs under the critical state of surge, corresponding between the running frequency of equipment motor and the pressure ratio of equipment container
Relationship, the pressure ratio are the ratio of condensing pressure and evaporating pressure；
Using the corresponding relationship, the critical operation frequency of the corresponding equipment motor of current pressure ratio of equipment container is determined, and really
The critical pressure ratio of the corresponding equipment container of the current operation frequency of locking equipment motor；
It is less than first threshold, and the critical pressure ratio in the current operation frequency of equipment motor and the difference of the critical operation frequency
And in the case that the difference of the current pressure ratio of equipment container is less than second threshold, improve the current operation frequency of equipment motor.
2. apparatus control method as described in claim 1, which is characterized in that further include:
In the case where the difference of the current operation frequency of equipment motor and the critical operation frequency is not less than first threshold, detection
The current fluctuation frequency of equipment motor；
If the current fluctuation frequency of equipment motor is greater than third threshold value, the current operation frequency of equipment motor is improved.
3. apparatus control method as claimed in claim 2, which is characterized in that if the current fluctuation frequency of the equipment motor is big
In third threshold value, then the current operation frequency for improving equipment motor includes:
If the current fluctuation frequency of equipment motor is greater than third threshold value, records the running frequency of equipment motor at this time and equipment is held
Then the pressure ratio of device improves the current operation frequency of equipment motor to update the corresponding relationship.
4. apparatus control method as claimed in claim 1 or 2, which is characterized in that further include:
If the current operation frequency of equipment motor does not increase within a preset time, the hot gas bypass valve of equipment is opened.
5. apparatus control method as described in claim 1, which is characterized in that further include: the current pressure ratio of detection device container
Whether within a preset range；
If the current pressure ratio of equipment container is within a preset range, apparatus control method as described in claim 1 is executed.
6. apparatus control method as claimed in claim 5, which is characterized in that further include:
If the current pressure ratio of equipment container is not within a preset range, the anti-asthma line of generating device；
Using the anti-asthma line, the minimum running frequency of the corresponding equipment motor of current pressure ratio of equipment container is determined；
If the current operation frequency of equipment motor is less than the minimum running frequency, the current operation frequency of equipment motor is mentioned
The up to described minimum running frequency.
7. apparatus control method as claimed in claim 6, which is characterized in that further include:
If the current operation frequency of equipment motor does not increase within a preset time, the hot gas bypass valve of equipment is opened.
8. a kind of plant control unit characterized by comprising
Corresponding relationship logging modle, is configured as: recording equipment occurs under the critical state of surge, the running frequency of equipment motor
Corresponding relationship between the pressure ratio of equipment container, the pressure ratio are the ratio of condensing pressure and evaporating pressure；
Frequency pressure ratio determining module, is configured as: utilizing the corresponding relationship, determines that the current pressure ratio of equipment container is corresponding and set
The critical operation frequency of standby motor, and determine the critical pressure ratio of the corresponding equipment container of current operation frequency of equipment motor；
Running frequency improves module, is configured as: in the current operation frequency of equipment motor and the difference of the critical operation frequency
Less than first threshold, and the difference of the current pressure ratio of the critical pressure ratio and equipment container is improved less than in the case where second threshold
The current operation frequency of equipment motor.
9. plant control unit as claimed in claim 8, which is characterized in that further include vibration frequency detection module, be configured
Are as follows: in the case where the difference of the current operation frequency of equipment motor and the critical operation frequency is not less than first threshold, detection
The current fluctuation frequency of equipment motor；
If the current fluctuation frequency that the running frequency raising module is also configured to equipment motor is greater than third threshold value, mention
The current operation frequency of high equipment motor.
10. plant control unit as claimed in claim 9, which is characterized in that the running frequency improves module and is also configured
Are as follows:
If the current fluctuation frequency of equipment motor is greater than third threshold value, records the running frequency of equipment motor at this time and equipment is held
Then the pressure ratio of device improves the current operation frequency of equipment motor to update the corresponding relationship.
11. plant control unit as claimed in claim 8 or 9, which is characterized in that further include that the first hot gas bypass valve opens mould
Block is configured as:
If the current operation frequency of equipment motor does not increase within a preset time, the hot gas bypass valve of equipment is opened.
12. plant control unit as claimed in claim 8, which is characterized in that further include current pressure ratio judgment module, be configured
Are as follows: within a preset range whether the current pressure ratio of detection device container；
If the current pressure ratio of equipment container is within a preset range, the plant control unit executes as described in claim 1
Apparatus control method.
13. plant control unit as claimed in claim 12, which is characterized in that further include:
Anti-asthma line generation module, if being configured as the current pressure ratio of equipment container not within a preset range, generating device it is anti-
Breathe heavily line；
Running frequency determining module is configured as determining the corresponding equipment of current pressure ratio of equipment container using the anti-asthma line
The minimum running frequency of motor；
If the running frequency improves module and is also configured to the current operation frequency of equipment motor less than the minimum operation frequency
Rate then improves the current operation frequency of equipment motor to the minimum running frequency.
14. plant control unit as claimed in claim 13, which is characterized in that further include that the second hot gas bypass valve opens mould
Block is configured as: if the current operation frequency of equipment motor does not increase within a preset time, opening the hot-gas bypass of equipment
Valve.
15. a kind of plant control unit characterized by comprising
Memory；And
It is coupled to the processor of the memory, the processor is configured to the instruction based on storage in the memory,
Execute the apparatus control method as described in any one of claims 1 to 7.
16. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer to refer to
It enables, the apparatus control method as described in any one of claims 1 to 7 is realized when described instruction is executed by processor.
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| TWI773107B (en) * | 2021-01-29 | 2022-08-01 | 復盛股份有限公司 | Surge detection method and compression device |
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