CN106640656B - Continuative energy adjusting method, device and the helical-lobe compressor of helical-lobe compressor - Google Patents
Continuative energy adjusting method, device and the helical-lobe compressor of helical-lobe compressor Download PDFInfo
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- CN106640656B CN106640656B CN201611114360.XA CN201611114360A CN106640656B CN 106640656 B CN106640656 B CN 106640656B CN 201611114360 A CN201611114360 A CN 201611114360A CN 106640656 B CN106640656 B CN 106640656B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
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Abstract
The present invention relates to continuative energy adjusting method, device and the helical-lobe compressor of a kind of helical-lobe compressor, method includes：The guiding valve load of helical-lobe compressor is divided into predetermined quantity load setting, each load setting includes energy adjustment section and energy keeps section, and it is preset value that wherein energy, which keeps the energy in section,；During energy load or unload, according under compressor actual condition and standard condition plus/unloading cycle default value and plus/discharge time default value updates each energy adjustment section and energy keeps the reality in section to add/unloading cycle and actual plus/discharge time；According to each energy adjustment section and energy keep the reality in section add/unloading cycle and actual plus/discharge time carry out energy adjustment.The present invention realizes that energy fine-tunes and to be rapidly achieved unit efficiency optimal, avoids the occurrence of that load span is big, the violent saltus step in energy section leads to not adjust cold medium flux in time, causes the phenomenon of low voltage failure.
Description
Technical field
The present invention relates to Compressor Technology field, more particularly to the continuative energy adjusting method of helical-lobe compressor, device and
Helical-lobe compressor.
Background technology
Current screw unit has grade energy adjustment mode too thick using having grade energy adjustment or continuative energy regulation
It is rustic, it is impossible to meet increasingly finer energy adjustment, and the energy adjustment mode can not reach most to the efficiency of screw unit
It is excellent, waste the energy；The continuative energy regulation unit of market is due to manufacturing process or design problem, after certain time is run,
Continuative energy regulation change is no longer fine, and the guiding valve of helical-lobe compressor no longer can be with slowly varying.
The content of the invention
The technical problems to be solved by the invention are in view of the shortcomings of the prior art, there is provided the continuative energy of helical-lobe compressor
Adjusting method, device and helical-lobe compressor.Solve that energy adjustment mode under each operating mode is rough, energy adjustment is not fine, unit
The problems such as efficiency can not be optimal；By in each load setting automatic adjusument, charge valve loading cycle automatic adjusument,
The regulation of guiding valve periodic time self-adapting is loaded under different operating modes, and multiple energy platforms are set, solving energy by energy platform slides
Valve position is uncertain, solves the problems, such as Screw chiller report low pressure in the case of specific operation.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of continuative energy regulation side of helical-lobe compressor
Method, including：
S1, the guiding valve load of helical-lobe compressor is divided into predetermined quantity load setting, each load setting includes energy
Adjust section and energy keeps section, it is preset value that wherein energy, which keeps the energy in section,；
S2, during energy load or unload, according under compressor actual condition and standard condition plus/unloading week
Phase default value and plus/discharge time default value updates each energy adjustment section and energy keeps the reality in section to add/unload week
Phase and actual plus/discharge time；
S3 ,/unloading cycle and reality add/is added according to the reality in each energy adjustment section and energy holding section during unloading
Between carry out energy adjustment.
The beneficial effects of the invention are as follows：The present invention will be divided into multiple load settings in the guiding valve load of helical-lobe compressor, often
Individual load setting not only includes energy adjustment section, in addition to energy keeps section, and it is pre- that wherein energy, which keeps the energy in section,
If value, in normal processes by add/automatic adjusument of unloading cycle plus/discharge time realize energy fine-tune and
It is rapidly achieved unit efficiency optimal, and section is kept by increasing energy, passes through regulation plus/discharge time and plus/unloading
Cycle causes energy to operate in preset value in energy holding area, avoids the occurrence of that load span is big, the violent saltus step in energy section is led
Cause system can not adjust cold medium flux in time, cause the phenomenon of low voltage failure.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the S2 includes：
S21, calculate preset times add/unloading cycle after load variation amount；
S22, is calculated according to the load variation amount plus/unloading adjusts the cycle；
S23, load value correction factor is calculated according to evaporator height pressure difference and Inlet and outlet water temperature difference；
S24, according to the load value correction factor plus under/unloading adjustment cycle and standard condition plus/unloading cycle are given tacit consent to
Value calculates actual plus/unloading cycle；
S25, according to the load value correction factor plus under/unloading adjustment cycle and standard condition plus/discharge time are given tacit consent to
Value calculates actual plus/discharge time.
It is using the above-mentioned further beneficial effect of scheme：Determine loading and unloading total time, load time and loading cycle
According to load variations, Inlet and outlet water water temperature change, height pressure difference change by PID be calculated renewal after add/unloading cycle and
Add/discharge time, carry out automatic adjusument, quickly meet energy adjustment demand.
Further, the calculation formula of the load variation amount Δ L is Δ L=L(x+n)-Lx, wherein n is preset times, L(x+n)
For the load capacity after n loading cycle, LxFor the load capacity before n loading cycle；
The calculation formula for adding/unloading adjustment cycle Y is Y=K1* (Δ L-3.5)+Z；Wherein, K1 is regulation coefficient, and Z is normal
Amount；
The calculation formula of load value adjusted coefficient K is K=K2* Δ P+K3* Δs Temp；Wherein, K2 is pressure difference correction factor, K3
For temperature difference correction factor, Δ P is evaporator height pressure difference, and Δ Temp is Inlet and outlet water temperature difference；
Actual plus/unloading cycle TX calculation formula be TX=K* (Y+TW), wherein, K be load value correction factor, Y be add/
In the unloading adjustment cycle, TW is under standard condition plus/unloading cycle default value；
Actual plus/discharge time TimX calculation formula is TimX=K* (Y+TimW), wherein, K is load value correction factor,
Y is adds/unloading adjustment the cycle, and TimW is under standard condition plus/unloading cycle the time recognizes value.
It is using the above-mentioned further beneficial effect of scheme：By quick regulation load time and cycle, make energy quick
Reach preset value, can be rapidly achieved efficiency optimal.
Further, the span of the preset times n is 2 to 6.
Further, the S3 includes：When each energy adjustment section is according to actual plus/unloading cycle and actual plus/unloading
Between carry out energy adjustment, reach energy in energy and keep entering energy after the preset value in section and keep section, or by pre-
If quantity actually plus after/unloading cycle, energy adjusting to energy is kept the preset value in section, section is kept into energy；
Each energy keeps section to carry out energy adjustment according to actual plus/unloading cycle and actual plus/discharge time.
It is using the above-mentioned further beneficial effect of scheme：Enter energy when energy reaches preset value and keep section,
After the actual loaded cycle by preset times, if energy is not up to the preset value that energy keeps section, by energy adjusting
To preset value, and the preset value is kept to run, effectively avoiding the occurrence of load span causes greatly system can not adjust refrigerant stream in time
Amount, causes the phenomenon of low voltage failure, by quick regulation load time and cycle, energy is rapidly achieved preset value, can make
Efficiency is rapidly achieved optimal.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of continuative energy regulation dress of helical-lobe compressor
Put, including：
Interval division module, it is each negative for the guiding valve load of helical-lobe compressor to be divided into predetermined quantity load setting
Lotus section includes energy adjustment section and energy keeps section, and it is preset value that wherein energy, which keeps the energy in section,；
Update module, for during energy load or unload, according under compressor actual condition and standard condition
Plus/unloading cycle default value and plus/discharge time default value updates each energy adjustment section and energy keeps the reality in section
Border adds/unloading cycle and actual plus/discharge time；
Control module, the reality for keeping section according to each energy adjustment section and energy adds/unloading cycle and reality
Border adds/discharge time progress energy adjustment.
The beneficial effects of the invention are as follows：The present invention will be divided into multiple load settings in the guiding valve load of helical-lobe compressor, often
Individual load setting not only includes energy adjustment section, in addition to energy keeps section, and it is pre- that wherein energy, which keeps the energy in section,
If value, in normal processes by add/automatic adjusument of unloading cycle plus/discharge time realizes that energy fine-tunes, and soon
Speed is optimal unit efficiency；And section is kept by increasing energy, passes through regulation plus/discharge time and plus/unloading week
Phase causes energy to operate in preset value in energy holding area, avoids the occurrence of that load span is big, the violent saltus step in energy section causes
System can not adjust cold medium flux in time, cause the phenomenon of low voltage failure.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the update module includes：
Load variation amount computing unit, add for calculating preset times/unloading cycle after load variation amount；
Add/unload adjustment computation of Period unit, add/unloading adjustment the cycle for being calculated according to the load variation amount；
Load value correction factor, for calculating load value correction factor according to evaporator height pressure difference and Inlet and outlet water temperature difference；
Updating block, for according to the load value correction factor plus add/unloading under/unloading adjustment cycle and standard condition
Load period default value calculates actual plus/unloading cycle；According to the load value adjusted coefficient K plus/unloading adjustment cycle and standard work
Under condition plus/discharge time default value calculates actual plus/discharge time.
Further, the calculation formula of the load variation amount Δ L is Δ L=L(x+n)-Lx, wherein n is preset times, L(x+n)
For the load capacity after n loading cycle, LxFor the load capacity before n loading cycle；
The calculation formula for adding/unloading adjustment cycle Y is Y=K1* (Δ L-3.5)+Z；Wherein, K1 is regulation coefficient, and Z is normal
Amount；
The calculation formula of load value adjusted coefficient K is K=K2* Δ P+K3* Δs Temp；Wherein, K2 is pressure difference correction factor, K3
For temperature difference correction factor, Δ P is evaporator height pressure difference, and Δ Temp is Inlet and outlet water temperature difference；
Actual plus/unloading cycle TX calculation formula be TX=K* (Y+TW), wherein, K be load value correction factor, Y be add/
In the unloading adjustment cycle, TW is under standard condition plus/unloading cycle default value；
Actual plus/discharge time TimX calculation formula is TimX=K* (Y+TimW), wherein, K is load value correction factor,
Y is adds/unloading adjustment the cycle, and TimW is under standard condition plus/unloading cycle the time recognizes value.
Further, the span of the preset times n is 2 to 6.
Further, the control module controls each energy adjustment section add/to be unloaded according to actual plus/unloading cycle and reality
Time progress energy adjustment is carried, reaches in energy after energy keeps the preset value in section and enters energy holding section, or passing through
Predetermined number is crossed actually plus after/unloading cycle, energy adjusting to energy is kept to the preset value in section, into energy holding area
Between；Each energy keeps section to carry out energy adjustment according to actual plus/unloading cycle and actual plus/discharge time.
Another technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of helical-lobe compressor, including above-mentioned technology
Continuative energy adjusting means described in scheme.
The beneficial effects of the invention are as follows：The present invention will be divided into multiple load settings in the guiding valve load of helical-lobe compressor, often
Individual load setting not only includes energy adjustment section, in addition to energy keeps section, and it is pre- that wherein energy, which keeps the energy in section,
If value, in normal processes by add/automatic adjusument of unloading cycle plus/discharge time realizes that energy fine-tunes, and soon
Speed is optimal unit efficiency；And section is kept by increasing energy, passes through regulation plus/discharge time and plus/unloading week
Phase causes energy to operate in preset value in energy holding area, avoids the occurrence of that load span is big, the violent saltus step in energy section causes
System can not adjust cold medium flux in time, cause the phenomenon of low voltage failure.
The advantages of aspect that the present invention adds, will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by present invention practice.
Brief description of the drawings
Fig. 1 is the continuative energy adjusting method flow chart of helical-lobe compressor provided in an embodiment of the present invention；
Fig. 2 is provided in an embodiment of the present invention plus/unloading cycle and plus/discharge time update method flow chart；
Fig. 3 is energy provided in an embodiment of the present invention loading regulation schematic diagram；
Fig. 4 is the continuative energy adjusting means structured flowchart of helical-lobe compressor provided in an embodiment of the present invention；
Fig. 5 is the structured flowchart of update module provided in an embodiment of the present invention；
Fig. 6 is the structured flowchart of helical-lobe compressor provided in an embodiment of the present invention.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Fig. 1 is the continuative energy adjusting method flow chart of helical-lobe compressor provided in an embodiment of the present invention.As shown in figure 1,
A kind of continuative energy adjusting method of helical-lobe compressor, including：
S1, the guiding valve load of helical-lobe compressor is divided into predetermined quantity load setting, each load setting includes energy
Adjust section and energy keeps section, it is preset value that wherein energy, which keeps the energy in section,；
S2, during energy load or unload, according under compressor actual condition and standard condition plus/unloading week
Phase default value and plus/discharge time default value updates each energy adjustment section and energy keeps the reality in section to add/unload week
Phase and actual plus/discharge time；
S3 ,/unloading cycle and reality add/is added according to the reality in each energy adjustment section and energy holding section during unloading
Between carry out energy adjustment.
The continuative energy adjusting method of the helical-lobe compressor provided in above-described embodiment, the cunning of the invention by helical-lobe compressor
It is divided into multiple load settings in valve load, each load setting not only includes energy adjustment section, in addition to energy keeps section,
It is preset value that wherein energy, which keeps the energy in section, in normal processes by add/unloading cycle, add/discharge time it is adaptive
Regulation realizes that energy fine-tunes, and is quickly optimal unit efficiency；And section is kept by increasing energy, is passed through
Regulation plus/discharge time and plus/unloading cycle causes energy to operate in preset value in energy holding area, avoid the occurrence of load across
Degree is big, the violent saltus step in energy section causes system can not adjust cold medium flux in time, causes the phenomenon of low voltage failure.
Alternatively, as one embodiment of the invention, as shown in Fig. 2 the S2 includes：
S21, calculate preset times add/unloading cycle after load variation amount；
S22, is calculated according to the load variation amount plus/unloading adjusts the cycle；
S23, load value correction factor is calculated according to evaporator height pressure difference and Inlet and outlet water temperature difference；
S24, according to the load value correction factor plus under/unloading adjustment cycle and standard condition plus/unloading cycle are given tacit consent to
Value calculates actual plus/unloading cycle；
S25, according to the load value correction factor plus under/unloading adjustment cycle and standard condition plus/discharge time are given tacit consent to
Value calculates actual plus/discharge time.
In above-described embodiment, loading and unloading total time determines that load time and loading cycle are according to load variations, Inlet and outlet water
Water temperature change, the change of height pressure difference are calculated after updating plus/unloading cycle by PID and add/discharge time, carry out adaptive
It should adjust, quickly meet energy adjustment demand.
Specifically, in the embodiment, the calculation formula of the load variation amount Δ L is Δ L=L(x+n)-Lx, wherein n is pre-
If number, L(x+n)For the load capacity after n loading cycle, LxFor the load capacity before n loading cycle；Preset times n value
Model can choose 2 to 6, and 3 are chosen in the present embodiment；Wherein, Δ L span can be 0-10；
The calculation formula for adding/unloading adjustment cycle Y is Y=K1* (Δ L-3.5)+Z；Wherein, K1 is regulation coefficient, and Z is normal
Amount；
The calculation formula of load value adjusted coefficient K is K=K2* Δ P+K3* Δs Temp；Wherein, K2 is pressure difference correction factor, K3
For temperature difference correction factor, Δ P is evaporator height pressure difference, and Δ Temp is Inlet and outlet water temperature difference；
Actual plus/unloading cycle TX calculation formula be TX=K* (Y+TW), wherein, K be load value correction factor, Y be add/
In the unloading adjustment cycle, TW is under standard condition plus/unloading cycle default value；
Actual plus/discharge time TimX calculation formula is TimX=K* (Y+TimW), wherein, K is load value correction factor,
Y is adds/unloading adjustment the cycle, and TimW is under standard condition plus/unloading cycle the time recognizes value.
In above-described embodiment, by quick regulation load time and cycle, energy is rapidly achieved preset value, can enable
Effect is rapidly achieved optimal.
Alternatively, include as one embodiment of the present of invention, the S3：Each energy adjustment section according to it is actual plus/
Unloading cycle and actual plus/discharge time carry out energy adjustment, reach in energy after energy keeps the preset value in section and enter energy
Amount keeps section, or actually plus after/unloading cycle, energy adjusting to energy is being kept into the pre- of section by predetermined number
If value, section is kept into energy；Each energy keeps section to enter according to actual plus/unloading cycle and actual plus/discharge time
Row energy adjustment.In the embodiment, energy holding section is entered when energy reaches preset value, in the reality Jing Guo preset times
After loading cycle, if energy is not up to the preset value that energy keeps section, by energy adjusting to preset value, and keep this pre-
If value operation, effectively avoiding the occurrence of load span causes greatly system can not adjust cold medium flux in time, causes showing for low voltage failure
As.By quick regulation load time and cycle, energy is rapidly achieved preset value, can be rapidly achieved efficiency optimal.
In Screw chiller 25%-100% guiding valve loads, it is divided into n load setting, each section has an energy to put down
Platform (corresponding energy keeps section)；Technical scheme is described in detail with reference to Fig. 3 examples.The embodiment includes 3
Load setting, enter 25% load after compressor start, be into A energy adjustments section, loading cycle T1, load time
Tim1；After the loading cycle of preset times or after reaching a1 loads, run in a1 load platforms D, now loading cycle
For T4, load time Tim4, enter B energy adjustments section after the energy platform runs the Ta times；In B energy adjustments area
Between, loading cycle T2, load time Tim2；After the loading cycle of preset times or after reaching a2 loads, in a2
Load platform E is run, and now loading cycle is T4, load time Tim4, after the energy platform runs the Ta times, into C
Energy adjustment section；In C energy adjustments section, loading cycle T3, load time Tim3, the loading week by preset times
After phase or judge after reaching 100% load, into oepration at full load.
T11, T21, T31, T41, Ta1 are the loading cycle default values under standard condition, Tim11, Tim21, Tim31,
Tim41 is the load time default value under standard condition, according to water inlet water temperature, output water temperature, pressure of inspiration(Pi), pressure at expulsion and
Default value under standard condition, the loading after loading cycle T1, T2, T3, T4 and Ta value after renewal, and renewal is calculated
Time Tim1, Tim2, Tim3 and Tim4, so as to carry out energy loading regulation.
Out of 100%-25% unloading energy adjustment loads, 100% load enters C sections and carries out energy tune, and unloading cycle is
T6, discharge time Tim6, unloading cycle by preset times or after reaching a2 loads are run in a2 load platforms E, this
When unloading cycle be T9, discharge time Tim9, the energy platform run the Tb times after enter B energy adjustments section；In B energy
Amount regulation section, unloading cycle T7, discharge time Tim7 or reach a1 loads at unloading cycle by preset times
Afterwards；A1 load platforms D run, now unloading cycle be T9, discharge time Tim9, the energy platform run the Tb times after
Into A energy adjustments section；In A energy adjustments section, unloading cycle T8, discharge time Tim8, by preset times
After unloading cycle or judge after reaching 25% load, keep 25% feather valve persistently to unload.
T61, T71, T81, T91, Tb1 are the unloading cycle default values under standard condition, Tim61, Tim71, Tim81,
Tim91 is the discharge time default value under standard condition.According to water inlet water temperature, output water temperature, pressure of inspiration(Pi), pressure at expulsion and
Default value under standard condition, the unloading after unloading cycle T6, T7, T8, T9, Tb value after renewal, and renewal is calculated
Time Tim6, Tim7, Tim8, Tim9, so as to carry out energy load out control.
Fig. 4 is the continuative energy adjusting means structured flowchart of helical-lobe compressor provided in an embodiment of the present invention.Such as Fig. 4 institutes
Show, a kind of continuative energy adjusting means of helical-lobe compressor, including：Interval division module, for by the guiding valve of helical-lobe compressor
Load is divided into predetermined quantity load setting, and each load setting includes energy adjustment section and energy keeps section, wherein can
It is preset value that amount, which keeps the energy in section,；Update module, for during energy load or unload, according to the actual work of compressor
Under condition and standard condition plus/unloading cycle default value and plus/discharge time default value update each energy adjustment section and
Energy keeps the reality in section to add/unloading cycle and actual plus/discharge time；Control module, for according to each energy adjustment
Section and energy keep the reality in section add/unloading cycle and actual plus/discharge time carry out energy adjustment.
The continuative energy adjusting means of the helical-lobe compressor provided in above-described embodiment, the cunning of the invention by helical-lobe compressor
It is divided into multiple load settings in valve load, each load setting not only includes energy adjustment section, in addition to energy keeps section,
It is preset value that wherein energy, which keeps the energy in section, in normal processes by add/unloading cycle, add/discharge time it is adaptive
Regulation realizes that energy fine-tunes, and is quickly optimal unit efficiency；And section is kept by increasing energy, is passed through
Regulation plus/discharge time and plus/unloading cycle causes energy to operate in preset value in energy holding area, avoid the occurrence of load across
Degree is big, the violent saltus step in energy section causes system can not adjust cold medium flux in time, causes the phenomenon of low voltage failure.
Alternatively, as one embodiment of the invention, as shown in figure 5, update module includes：
Load variation amount computing unit, add for calculating preset times/unloading cycle after load variation amount；
Add/unload adjustment computation of Period unit, add/unloading adjustment the cycle for being calculated according to the load variation amount；
Load value correction factor, for calculating load value correction factor according to evaporator height pressure difference and Inlet and outlet water temperature difference；
Updating block, for according to the load value correction factor plus add/unloading under/unloading adjustment cycle and standard condition
Load period default value calculates actual plus/unloading cycle；According to the load value adjusted coefficient K plus/unloading adjustment cycle and standard work
Under condition plus/discharge time default value calculates actual plus/discharge time.
In above-described embodiment, loading and unloading total time determines that load time and loading cycle are according to load variations, Inlet and outlet water
Water temperature change, the change of height pressure difference are calculated after updating plus/unloading cycle by PID and add/discharge time, carry out adaptive
It should adjust, quickly meet energy adjustment demand.
Specifically, in the embodiment, the load variation amount Δ L calculation formula are Δ L=L(x+n)-Lx, wherein n is default
Number, L(x+n)For the load capacity after n loading cycle, LxFor the load capacity before n loading cycle；Preset times n value model
2 to 6 can be chosen, 3 are chosen in the present embodiment；Wherein, Δ L span can be 0-10；
The calculation formula for adding/unloading adjustment cycle Y is Y=K1* (Δ L-3.5)+Z；Wherein, K1 is regulation coefficient, and Z is normal
Amount；
The calculation formula of load value adjusted coefficient K is K=K2* Δ P+K3* Δs Temp；Wherein, K2 is pressure difference correction factor, K3
For temperature difference correction factor, Δ P is evaporator height pressure difference, and Δ Temp is Inlet and outlet water temperature difference；
Actual plus/unloading cycle TX calculation formula be TX=K* (Y+TW), wherein, K be load value correction factor, Y be add/
In the unloading adjustment cycle, TW is under standard condition plus/unloading cycle default value；
Actual plus/discharge time TimX calculation formula is TimX=K* (Y+TimW), wherein, K is load value correction factor,
Y is adds/unloading adjustment the cycle, and TimW is under standard condition plus/unloading cycle the time recognizes value.
In above-described embodiment, by quick regulation load time and cycle, energy is rapidly achieved preset value, can enable
Effect is rapidly achieved optimal.
Alternatively, as invention one embodiment, the control module control each energy adjustment section according to it is actual plus/
Unloading cycle and actual plus/discharge time carry out energy adjustment, reach in energy after energy keeps the preset value in section and enter energy
Amount keeps section, or actually plus after/unloading cycle, energy adjusting to energy is being kept into the pre- of section by predetermined number
If value, section is kept into energy；Each energy keeps section to enter according to actual plus/unloading cycle and actual plus/discharge time
Row energy adjustment.In the embodiment, energy holding section is entered when energy reaches preset value, in the reality Jing Guo preset times
After loading cycle, if energy is not up to the preset value that energy keeps section, by energy adjusting to preset value, and keep this pre-
If value operation, effectively avoiding the occurrence of load span causes greatly system can not adjust cold medium flux in time, causes showing for low voltage failure
As.By quick regulation load time and cycle, energy is rapidly achieved preset value, can be rapidly achieved efficiency optimal.
Fig. 6 is helical-lobe compressor structured flowchart provided in an embodiment of the present invention.As shown in fig. 6, a kind of helical-lobe compressor, bag
Include the continuative energy adjusting means of helical-lobe compressor described in above-described embodiment.
The helical-lobe compressor provided in above-described embodiment, the present invention will be divided into multiple negative in the guiding valve load of helical-lobe compressor
Lotus section, each load setting not only include energy adjustment section, in addition to energy keeps section, and wherein energy keeps section
Energy is preset value, in normal processes by add/automatic adjusument of unloading cycle plus/discharge time realizes that energy is finely adjusted
Section, and quickly it is optimal unit efficiency；And by increase energy keep section, by regulation plus/discharge time and
Add/unloading cycle so that energy operates in preset value in energy holding area, avoid the occurrence of that load span is big, energy section is violent
Saltus step causes system can not adjust cold medium flux in time, causes the phenomenon of low voltage failure.
It is apparent to those skilled in the art that for convenience of description and succinctly, the dress of foregoing description
The specific work process with unit is put, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it can be passed through
Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of unit, is only
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.
The unit illustrated as separating component can be or may not be physically separate, be shown as unit
Part can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple networks
On unit.Some or all of unit therein can be selected to realize the mesh of scheme of the embodiment of the present invention according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
It is that unit is individually physically present or two or more units are integrated in a unit.It is above-mentioned integrated
Unit can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can
To be stored in a computer read/write memory medium.Based on such understanding, technical scheme substantially or
Say that the part to be contributed to prior art, or all or part of the technical scheme can be embodied in the form of software product
Out, the computer software product is stored in a storage medium, including some instructions are causing a computer equipment
(can be personal computer, server, or network equipment etc.) performs all or part of each embodiment method of the present invention
Step.And foregoing storage medium includes：It is USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random
Access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with Jie of store program codes
Matter.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (11)
- A kind of 1. continuative energy adjusting method of helical-lobe compressor, it is characterised in that including：S1, the guiding valve load of helical-lobe compressor is divided into predetermined quantity load setting, each load setting includes energy adjustment Section and energy keep section, and it is preset value that wherein energy, which keeps the energy in section,；S2, during energy load or unload, write from memory according under compressor actual condition and standard condition plus/unloading cycle Recognize value and add/discharge time default value update each energy adjustment section and energy keep the reality in section add/unloading cycle and Actual plus/discharge time；S3, according to each energy adjustment section and energy keep the reality in section add/unloading cycle and actual plus/discharge time enter Row energy adjustment.
- 2. the continuative energy adjusting method of helical-lobe compressor according to claim 1, it is characterised in that the S2 includes：S21, calculate preset times add/unloading cycle after load variation amount；S22, is calculated according to the load variation amount plus/unloading adjusts the cycle；S23, load value correction factor is calculated according to evaporator height pressure difference and Inlet and outlet water temperature difference；S24, according to the load value correction factor plus under/unloading adjustment cycle and standard condition plus/unloading cycle default value meter Calculate actual plus/unloading cycle；S25, according to the load value correction factor plus under/unloading adjustment cycle and standard condition plus/discharge time default value meter Calculate actual plus/discharge time.
- 3. the continuative energy adjusting method of helical-lobe compressor according to claim 2, it is characterised in that the load change The calculation formula for measuring Δ L is Δ L=L(x+n)-Lx, wherein n is preset times, L(x+n)For the load capacity after n loading cycle, Lx For the load capacity before n loading cycle；The calculation formula for adding/unloading adjustment cycle Y is Y=K1* (Δ L-3.5)+Z；Wherein, K1 is regulation coefficient, and Z is constant；The calculation formula of load value adjusted coefficient K is K=K2* Δ P+K3* Δs Temp；Wherein, K2 is pressure difference correction factor, and K3 is temperature Poor correction factor, Δ P are evaporator height pressure difference, and Δ Temp is Inlet and outlet water temperature difference；Actual plus/unloading cycle TX calculation formula is TX=K* (Y+TW), wherein, K is load value correction factor, and Y is to add/unloading The cycle is adjusted, TW is under standard condition plus/unloading cycle default value；Actual plus/discharge time TimX calculation formula is TimX=K* (Y+TimW), wherein, K is load value correction factor, and Y is Add/unload the adjustment cycle, TimW is under standard condition plus/unloading cycle the time recognizes value.
- 4. the continuative energy adjusting method of helical-lobe compressor according to claim 3, it is characterised in that the preset times N span is 2 to 6.
- 5. the continuative energy adjusting method of the helical-lobe compressor according to any one of Claims 1-4, it is characterised in that institute Stating S3 includes：Each energy adjustment section carries out energy adjustment according to actual plus/unloading cycle and actual plus/discharge time, Energy reaches after energy keeps the preset value in section and enters energy holding section, or actually add/is being unloaded by predetermined number After load period, energy adjusting to energy is kept to the preset value in section, section is kept into energy；Each energy keeps section to press According to the facts border add/unloading cycle and actual plus/discharge time carry out energy adjustment.
- A kind of 6. continuative energy adjusting means of helical-lobe compressor, it is characterised in that including：Interval division module, for the guiding valve load of helical-lobe compressor to be divided into predetermined quantity load setting, each loading zone Between include energy adjustment section and energy and keep section, it is preset value that wherein energy, which keeps the energy in section,；Update module, for during energy load or unload, according to it is under compressor actual condition and standard condition plus/ Unloading cycle default value and plus/discharge time default value update each energy adjustment section and energy keep the reality in section add/ Unloading cycle and actual plus/discharge time；Control module, the reality for keeping section according to each energy adjustment section and energy adds/unloading cycle and it is actual plus/ Discharge time carries out energy adjustment.
- 7. the continuative energy adjusting means of helical-lobe compressor according to claim 6, it is characterised in that the update module Including：Load variation amount computing unit, add for calculating preset times/unloading cycle after load variation amount；Add/unload adjustment computation of Period unit, add/unloading adjustment the cycle for being calculated according to the load variation amount；Load value correction factor, for calculating load value correction factor according to evaporator height pressure difference and Inlet and outlet water temperature difference；Updating block, for according to the load value correction factor plus under/unloading adjustment cycle and standard condition plus/unloading week Phase default value calculates actual plus/unloading cycle；According to the load value adjusted coefficient K plus under/unloading adjustment cycle and standard condition Plus/discharge time default value calculate actual plus/discharge time.
- 8. the continuative energy adjusting means of helical-lobe compressor according to claim 7, it is characterised in that the load change The calculation formula for measuring Δ L is Δ L=L(x+n)-Lx, wherein n is preset times, L(x+n)For the load capacity after n loading cycle, Lx For the load capacity before n loading cycle；The calculation formula for adding/unloading adjustment cycle Y is Y=K1* (Δ L-3.5)+Z；Wherein, K1 is regulation coefficient, and Z is constant；The calculation formula of load value adjusted coefficient K is K=K2* Δ P+K3* Δs Temp；Wherein, K2 is pressure difference correction factor, and K3 is temperature Poor correction factor, Δ P are evaporator height pressure difference, and Δ Temp is Inlet and outlet water temperature difference；Actual plus/unloading cycle TX calculation formula is TX=K* (Y+TW), wherein, K is load value correction factor, and Y is to add/unloading The cycle is adjusted, TW is under standard condition plus/unloading cycle default value；Actual plus/discharge time TimX calculation formula is TimX=K* (Y+TimW), wherein, K is load value correction factor, and Y is Add/unload the adjustment cycle, TimW is under standard condition plus/unloading cycle the time recognizes value.
- 9. the continuative energy adjusting means of helical-lobe compressor according to claim 8, it is characterised in that the preset times N span is 2 to 6.
- 10. the continuative energy adjusting means of the helical-lobe compressor according to any one of claim 6 to 9, it is characterised in that institute Stating control module controls each energy adjustment section to carry out energy tune according to actual plus/unloading cycle and actual plus/discharge time Section, reach in energy after energy keeps the preset value in section and enter energy holding section, or actual by predetermined number Add/unloading cycle after, by energy adjusting to energy keep section preset value, into energy keep section；Each energy is kept Section carries out energy adjustment according to actual plus/unloading cycle and actual plus/discharge time.
- 11. a kind of helical-lobe compressor, it is characterised in that adjust dress including the continuative energy described in any one of claim 6 to 10 Put.
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