CN106969569A - Refrigeration plant control method, system and refrigeration plant - Google Patents
Refrigeration plant control method, system and refrigeration plant Download PDFInfo
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- CN106969569A CN106969569A CN201710170052.7A CN201710170052A CN106969569A CN 106969569 A CN106969569 A CN 106969569A CN 201710170052 A CN201710170052 A CN 201710170052A CN 106969569 A CN106969569 A CN 106969569A
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- compressor
- refrigeration plant
- refrigeration
- duration
- preset duration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The refrigeration plant control method that the present invention is provided, system and refrigeration plant, it regard the single operation duration of compressor as the criterion to refrigeration plant operating mode, when this operation duration is longer, assert that refrigeration plant is in high load capacity compression condition, now the compressor of refrigeration plant, which needs to provide relatively large number of compression refrigerant, is freezed, need larger minimum cylinder volume, and when refrigeration plant operation duration is shorter, refrigeration plant is identified in underload compression condition, then need less minimum cylinder volume, by when compressor is identified as high load capacity or underload compression condition, it can provide and the suitable minimum cylinder volume of demand, it to avoid that refrigeration is not good or refrigeration crosses the situation for even causing energy waste, according to the result of determination to refrigeration plant operating mode, the steering of compressor is just set at the beginning of next time starts, simultaneously effective avoid the waste of the energy, reduce the unnecessary energy consumption of product, improve the competitiveness of product in market.
Description
Technical field
The present invention relates to household appliance technical field, set in particular to a kind of refrigeration plant control method, system and refrigeration
It is standby.
Background technology
At present, in existing computer temperature control refrigerator, the compressor cost for determining frequency is relatively inexpensive, but it operationally needs
The control to temperature is realized by frequent start and stop, it is impossible to the compression volume of compressor, so meeting are adjusted according to the size of thermic load
Cause not enough energy-conservation；And the compressor of frequency conversion is relatively saved, but its cost is higher, and frequency-changeable compressor control circuit and wiring are more
It is complicated.
Therefore, design a kind of control system simply and relative energy-conservation, the refrigeration of lower-cost invariable frequency compressor are set
Standby control method, system and refrigeration plant turn into urgent problem to be solved.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art or correlation technique.
Therefore, it is an advantage of the invention to provide a kind of refrigeration plant control method.
Second object of the present invention is that there is provided a kind of refrigeration plant control system.
Third object of the present invention is that there is provided a kind of refrigeration plant.
In view of this, set according to one object of the present invention there is provided a kind of refrigeration plant control method for freezing
Standby, when refrigeration plant is opened, this operation duration to compressor is recorded in real time；By this operation duration of compressor
It is compared with the preset duration in refrigeration plant, judges that refrigeration plant operating mode belongs to high load capacity compression condition or underload compression
Operating mode；According to this judged result to refrigeration plant operating mode, steering of the compressor of refrigeration plant when opening next time is controlled.
The refrigeration plant control method that the present invention is provided first can recording compressed machine this operation duration, and by this
Operation duration as the criterion to refrigeration plant operating mode, when this operation duration is longer, that is, assert refrigeration plant
In high load capacity compression condition, now the compressor of refrigeration plant, which needs to provide relatively large number of compression refrigerant, is freezed,
Now being accomplished by invariable frequency compressor has larger minimum cylinder volume, and when refrigeration plant operation duration is shorter, refrigeration plant quilt
Assert and be in underload compression condition, then need less minimum cylinder volume, have during by the way that compressor being set to rotate and reverse
There are different minimum cylinder volumes, ensure that when refrigeration plant is identified as high load capacity compression condition or underload compression condition,
Can provide with the suitable minimum cylinder volume of demand, to avoid that refrigeration is not good or refrigeration is crossed and even causes energy wave
Situation about taking, according to the result of determination to refrigeration plant operating mode, just sets the steering of compressor at the beginning of next time starts so that
Compressor next time open when just can be from start to finish the demand for meeting user, simultaneously effective avoid the waste of the energy, subtract
Lack the unnecessary energy consumption of product, improve the competitiveness of product in market.
In addition, the refrigeration plant control method provided according to the above embodiment of the present invention also has following supplementary technology special
Levy：
In any of the above-described technical scheme, it is preferable that judge whether refrigeration plant belongs to high load capacity compression condition or low negative
Lotus compression condition, and concretely comprising the following steps of being controlled to the compressor of refrigeration plant：At the end of compressor operating, pressure is judged
Whether this operation duration of contracting machine is more than the first preset duration；When this operation duration of compressor is more than the first preset duration
When, control the compressor of refrigeration plant when opening next time, enable the steering of high load capacity compression condition；When this fortune of compressor
When row duration is less than or equal to the first preset duration, judge whether this operation duration of compressor is less than the second preset duration；When
When this operation duration of compressor is less than the second preset duration, control compressor enables underload compression when opening next time
The steering of operating mode；When this operation duration of compressor is more than or equal to the second preset duration, when control is compressed in unlatching next time
Keep turning to this steering identical.
In the technical scheme, at the end of compressor operating, when this operation duration that recorded is preset with first
Length is compared, and the first preset duration is the reference time length formerly set according to the refrigeration of compressor, when this runs
It is long to be more than the first preset duration, illustrate that compressor opens the long period, further illustrate user to the demand of refrigeration compared with
Height, can thus control compressor next time open when can keep the steering of high load capacity compression condition, with meet user compared with
High refrigeration demand；Preset when this operation duration is less than or equal to the first preset duration, then by this operation duration with second
Duration is compared, and the second preset duration is also the reference time length formerly set according to the refrigeration of compressor, works as compressor
This operation duration be less than the second preset duration when, illustrate that compressor opens the short period, further illustrate user to make
The demand of cold effect is relatively low, can thus control compressor to keep turning for underload compression condition when opening next time
To meet the refrigeration demand that user is relatively low, when this operation duration of compressor is more than or equal to the second preset duration, now
Illustrate that user opens the duration of refrigeration plant suitably, without being adjusted when starting next time, you can control, which is compressed in, opens next time
Keep turning to this steering identical when opening.
In any of the above-described technical scheme, it is preferable that the first preset duration is more than the second preset duration.
In the technical scheme, the first preset duration is set greater than into the second preset duration, i.e. the first preset duration is
The most long operating time set according to the refrigeration of compressor, the second preset duration is to be set according to the refrigeration of compressor
Most short operating time, when running length it is also long than most long operating time, then illustrate now refrigeration plant refrigeration requirement it is higher,
Compressor needs to be maintained under the steering of high load capacity compression condition, and length is also shorter than most short operating time when running, then illustrates this
When refrigeration plant refrigeration require relatively low, compressor needs to be maintained under the steering of underload compression condition.
In any of the above-described technical scheme, it is preferable that the steering of the high load capacity compression condition of compressor is rotating forward；And/or
The steering of the underload compression condition of compressor is reversion.
In the technical scheme, the rotating forward of compressor is set to the steering of high load capacity compression condition, now, by compressor
Compression volume be set to larger volume, refrigeration is obvious；And the reversion of compressor is set to underload compression condition
Turn to, now, the compression volume of compressor is set to smaller size smaller, refrigeration is not obvious；By the rotating forward of compressor and
Invert to realize different minimum cylinder volumes, and ensured compression function to run in the state of most saving, it is of course also possible to will pressure
The reversion of contracting machine is set to the steering of high load capacity compression condition；The rotating forward of compressor is set to the steering of underload compression condition,
It is now the internal mechanical structure setting difference of compressor, its control principle is identical.
In any of the above-described technical scheme, it is preferable that minimum cylinder volume when compressor is rotated forward is more than pressure during compression reversion
Capacity reducing is accumulated.
In the technical scheme, compression when minimum cylinder volume when compressor is rotated forward is set greater than compressor reverse rotation is held
Product so that compressor can be realized by rotating with different swept volumes, and different refrigerations can be provided,
To provide suitable minimum cylinder volume under suitable operating mode.
The embodiment of second aspect of the present invention provides a kind of refrigeration plant control system, for refrigeration plant, its feature
It is, including：Timing unit, for when refrigeration plant is opened, this operation duration to compressor to be recorded in real time；Sentence
Disconnected unit, for this operation duration of compressor and the preset duration in refrigeration plant to be compared, judges refrigeration plant
Whether high load capacity compression condition or underload compression condition are belonged to；Control unit, for according to this to refrigeration plant operating mode
Judged result, controls steering of the compressor of refrigeration plant when opening next time.
Pass through this operation of timing unit meeting recording compressed machine first in the refrigeration plant control system of the invention provided
Duration, and by judging unit using this operation duration as the criterion to refrigeration plant operating mode, when this fortune
When row duration is longer, that is, assert that refrigeration plant is in high load capacity compression condition, now the compressor of refrigeration plant needs to provide phase
More compression refrigerant is freezed, being now accomplished by invariable frequency compressor has larger minimum cylinder volume, and is set in refrigeration
When standby operation duration is shorter, refrigeration plant is identified in underload compression condition, then needs less minimum cylinder volume, and passing through will
There are different minimum cylinder volumes when compressor is set to rotate and reverse, ensure that and be identified as high load capacity pressure in refrigeration plant
When contracting operating mode or underload compression condition, compressor is set to provide and the suitable minimum cylinder volume of demand by control unit, in order to avoid
Generation refrigeration is not good or refrigeration crosses the situation for even causing energy waste, according to the judgement to refrigeration plant operating mode
As a result, the steering of compressor is just set at the beginning of next time starts so that what compressor just can be from start to finish when opening next time
The demand of user is met, the waste of the energy is simultaneously effective avoided, the unnecessary energy consumption of product is reduced, improves product
The market competitiveness.
In any of the above-described technical scheme, it is preferable that judging unit specifically for：Judge this operation duration of compressor
Whether it is less than or equal to the first preset duration, when this operation duration of compressor is less than or equal to the first preset duration, then judges
Whether this operation duration of compressor is less than the second preset duration；Control unit includes：First control unit, for when compression
When this operation duration of machine is more than the first preset duration, controls the compressor of refrigeration plant when opening next time, enable high negative
The steering of lotus compression condition；Second control unit, for when this operation duration of compressor is less than the second preset duration, controlling
Compressor processed enables the steering of underload compression condition when opening next time；3rd control unit, for when compressor this
When operation duration is more than or equal to the second preset duration, control, which is compressed in when opening next time, to keep turning to this steering identical.
In the technical scheme, this operation duration that recorded and the first preset duration are entered first in judging unit
Row compares, and the first preset duration is the reference time length formerly set according to the refrigeration of compressor, when this operation duration is big
In the first preset duration, illustrate that compressor opens the long period, further illustrate that user is higher to the demand of refrigeration, this
Sample just can control compressor to keep the steering of high load capacity compression condition when opening next time by the first control unit, with
Meet the higher refrigeration demand of user；When this operation duration is less than or equal to the first preset duration, then will by judging unit
This operation duration is compared with the second preset duration, and the second preset duration is also formerly to be set according to the refrigeration of compressor
Fixed reference time length, when this operation duration of compressor is less than the second preset duration, when illustrating that compressor opens shorter
Between, further illustrate that user is relatively low to the demand of refrigeration, thus by the second control unit compressor can be controlled to exist
The steering of underload compression condition can be kept when opening next time, to meet the refrigeration demand that user is relatively low, when the sheet of compressor
When secondary operation duration is more than or equal to the second preset duration, now illustrate that user opens the duration of refrigeration plant suitably, without under
It is adjusted during secondary startup, you can kept when being compressed in and open next time by the control of the 3rd control unit and this steering identical
Turn to.
In any of the above-described technical scheme, it is preferable that the first preset duration is more than the second preset duration.
In the technical scheme, the first preset duration is set greater than into the second preset duration, i.e. the first preset duration is
The most long operating time set according to the refrigeration of compressor, the second preset duration is to be set according to the refrigeration of compressor
Most short operating time, when running length it is also long than most long operating time, then illustrate now refrigeration plant refrigeration requirement it is higher,
Compressor needs to be maintained under the steering of high load capacity compression condition, and length is also shorter than most short operating time when running, then illustrates this
When refrigeration plant refrigeration require relatively low, compressor needs to be maintained under the steering of underload compression condition.
In any of the above-described technical scheme, it is preferable that the steering of the high load capacity compression condition of compressor is rotating forward；And/or
The steering of the underload compression condition of compressor is reversion.
In the technical scheme, the rotating forward of compressor is set to the steering of high load capacity compression condition, now, by compressor
Compression volume be set to larger volume, refrigeration is obvious；And the reversion of compressor is set to underload compression condition
Turn to, now, the compression volume of compressor is set to smaller size smaller, refrigeration is not obvious；By the rotating forward of compressor and
Invert to realize different minimum cylinder volumes, and ensured compression function to run in the state of most saving, it is of course also possible to will pressure
The reversion of contracting machine is set to the steering of high load capacity compression condition；The rotating forward of compressor is set to the steering of underload compression condition,
It is now the internal mechanical structure setting difference of compressor, its control principle is identical.
In any of the above-described technical scheme, it is preferable that minimum cylinder volume when compressor is rotated forward is more than pressure during compression reversion
Capacity reducing is accumulated.
In the technical scheme, compression when minimum cylinder volume when compressor is rotated forward is set greater than compressor reverse rotation is held
Product so that compressor can be realized by rotating with different swept volumes, and different refrigerations can be provided,
To provide suitable minimum cylinder volume under suitable operating mode.
According to third object of the present invention, the invention provides a kind of refrigeration plant, with any implementation of second aspect
The refrigeration plant control system that example is provided, therefore, the refrigeration plant that embodiments of the invention are provided have any reality of second aspect
Whole beneficial effects of the refrigeration plant control system of example offer are provided, it is numerous to list herein.
In any of the above-described technical scheme, it is preferable that also include：The throttling arrangement that is sequentially connected, evaporator, compressor and
Condenser, wherein, swept volume when compressor is rotated forward is more than swept volume during compressor reverse rotation.
In the technical scheme, refrigeration plant also includes throttling arrangement, evaporator, compressor and the condensation being sequentially connected
Device, and the minimum cylinder volume of minimum cylinder volume when compressor is rotated forward when being set greater than compressor reverse rotation so that compressor can
To be realized by rotating with different swept volumes, and different refrigerations can be provided, with suitable operating mode
It is lower that suitable minimum cylinder volume is provided.
In any of the above-described technical scheme, it is preferable that anti-condensation pipe, it is arranged between throttling arrangement and condenser, is used for
Prevent dew condensation phenomenon.
In the technical scheme, refrigeration plant also includes anti-condensation pipe, is arranged between throttling arrangement and condenser, is used for
Prevent dew condensation phenomenon, improve Consumer's Experience.
In any of the above-described technical scheme, it is preferable that compressor is to determine frequency air-cylinder type compressor, work when compressor is rotated forward
Impulse stroke when making stroke more than compressor reverse rotation.
In the technical scheme, compressor is set to invariable frequency compressor, the cost of invariable frequency compressor is relatively low, controls circuit
It is relatively easy, and compressor rotating forward when impulse stroke be more than compressor reverse rotation when impulse stroke so that compressor is just
Compression volume when turning is set to larger volume, and refrigeration is obvious；Compression volume of the compressor in reversion is set to smaller
Volume, refrigeration is not obvious；Compressor to pass through rotating to realize with different swept volumes, and can carry
For different refrigerations, to provide suitable minimum cylinder volume under suitable operating mode, the energy-saving effect of product is improved.
Other additional aspect and advantage will become obvious in following description section, or be understood by the practice of the present invention
Arrive.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 illustrates the flow chart of the refrigeration plant control method of one embodiment in the present invention；
Fig. 2 illustrates the another flow chart of the refrigeration plant control method of one embodiment in the present invention；
Fig. 3 illustrates the frame diagram of the refrigeration plant control system of one embodiment in the present invention；
Fig. 4 illustrates the another frame diagram of the refrigeration plant control system of one embodiment in the present invention；
Fig. 5 illustrates the structural representation of the refrigeration plant of one embodiment in the present invention.
Wherein, corresponding relations of the Fig. 1 into Fig. 5 between reference and component names is：
2 throttling arrangements, 4 evaporators, 6 compressors, 8 condensers, 10 anti-condensation pipes.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Referring to vehicle, fence, the recorded electronic fence of Fig. 1 to Fig. 5 descriptions according to some embodiments of the invention
The method and system of middle vehicle.
As shown in figure 1, being set according to one object of the present invention there is provided a kind of refrigeration plant control method for freezing
It is standby, wherein, this method includes：
S102, when refrigeration plant is opened, this operation duration to compressor is recorded in real time；
S104, this operation duration of compressor and the preset duration in refrigeration plant are compared, judge that refrigeration is set
Standby operating mode belongs to high load capacity compression condition or underload compression condition；
S106, according to this judged result to refrigeration plant operating mode, controls the compressor of refrigeration plant to be opened in next time
When steering.
The refrigeration plant control method that the present invention is provided first can recording compressed machine this operation duration, and will compression
This operation duration of machine when this operation duration is longer, that is, is assert as the criterion to refrigeration plant operating mode
Refrigeration plant is in high load capacity compression condition, and now the compressor of refrigeration plant, which needs to provide relatively large number of compression refrigerant, enters
Row refrigeration, being now accomplished by invariable frequency compressor has larger minimum cylinder volume, and when refrigeration plant operation duration is shorter, refrigeration
Equipment is identified in underload compression condition, then needs less minimum cylinder volume, by the way that compressor to be set to rotate forward and anti-
There are different minimum cylinder volumes when turning, ensure that and be identified as high load capacity compression condition or underload compression work in refrigeration plant
During condition, can provide with the suitable minimum cylinder volume of demand, to avoid that refrigeration is not good or refrigeration is crossed and even caused
The situation of energy waste, according to the result of determination to refrigeration plant operating mode, compression is just set at the beginning of compressor starts next time
The steering of machine so that the demand for meeting user that compressor just can be from start to finish when opening next time, is simultaneously effective avoided
The waste of the energy, reduces the unnecessary energy consumption of product, improves the competitiveness of product in market.
As shown in Fig. 2 in one embodiment of the invention there is provided a kind of refrigeration plant control method, wherein, the party
Method includes：
S201, when refrigeration plant is opened, this operation duration to compressor is recorded in real time；
S202, at the end of compressor operating, judges whether this operation duration of compressor is more than the first preset duration；
S204, when this operation duration of compressor is more than the first preset duration, the compressor of control refrigeration plant exists
When next time opens, the steering of high load capacity compression condition is enabled；
S206, when this operation duration of compressor is less than or equal to the first preset duration, judges this fortune of compressor
Whether row duration is less than the second preset duration；
S208, when this operation duration of compressor is less than the second preset duration, controls compressor when opening next time,
Enable the steering of underload compression condition；
S210, when this operation duration of compressor is more than or equal to the second preset duration, control is compressed in next unlatching
When keep with this steering identical turn to.
In this embodiment, at the end of compressor operating, by this operation duration that recorded and the first preset duration
It is compared, the first preset duration is the reference time length formerly set according to the refrigeration of compressor, when this operation duration
More than the first preset duration, illustrate that compressor opens the long period, further illustrate that user is higher to the demand of refrigeration,
Compressor can be thus controlled to keep the steering of high load capacity compression condition when opening next time, it is higher to meet user
Refrigeration demand；When this operation duration is less than or equal to the first preset duration, then by this operation duration and the second preset duration
It is compared, the second preset duration is also the reference time length formerly set according to the refrigeration of compressor, when the sheet of compressor
When secondary operation duration is less than the second preset duration, illustrate that compressor opens the short period, further illustrate that user is imitated to refrigeration
The demand of fruit is relatively low, can thus control compressor to keep the steering of underload compression condition when opening next time, with
The relatively low refrigeration demand of user is met, when this operation duration of compressor is more than or equal to the second preset duration, is now illustrated
User opens the duration of refrigeration plant suitably, without being adjusted when starting next time, you can when control is compressed in unlatching next time
Keep turning to this steering identical.
In one embodiment of the invention, it is preferable that the first preset duration is more than the second preset duration.
In this embodiment, the first preset duration is set greater than the second preset duration, i.e. the first preset duration for root
The most long operating time set according to the refrigeration of compressor, the second preset duration is to be set according to the refrigeration of compressor
Most short operating time, length is also longer than most long operating time when running, then illustrates that the refrigeration of now refrigeration plant requires higher, pressure
Contracting machine needs to be maintained under the steering of high load capacity compression condition, and length is also shorter than most short operating time when running, then illustrates now
The refrigeration of refrigeration plant requires relatively low, and compressor needs to be maintained under the steering of underload compression condition.
In one embodiment of the invention, it is preferable that the steering of the high load capacity compression condition of compressor is rotating forward；With/
Or the steering of the underload compression condition of compressor is reversion.
In this embodiment, the rotating forward of compressor is set to the steering of high load capacity compression condition, now, by compressor
Compression volume is set to larger volume, and refrigeration is obvious；And the reversion of compressor is set to turning for underload compression condition
To now, the compression volume of compressor being set into smaller size smaller, refrigeration is not obvious；By the rotating forward of compressor and anti-
Transfer and realize different minimum cylinder volumes, and ensured compression function to run in the state of most saving, it is of course also possible to will compression
The reversion of machine is set to the steering of high load capacity compression condition；The rotating forward of compressor is set to the steering of underload compression condition, this
When be compressor internal mechanical structure setting it is different, its control principle is identical.
In one embodiment of the invention, it is preferable that minimum cylinder volume when compressor is rotated forward is more than when compression is inverted
Minimum cylinder volume.
In this embodiment, compression when minimum cylinder volume when compressor is rotated forward is set greater than compressor reverse rotation is held
Product so that compressor can be realized by rotating with different swept volumes, and different refrigerations can be provided,
To provide suitable minimum cylinder volume under suitable operating mode.
As shown in figure 3, the embodiment of second aspect of the present invention provides a kind of refrigeration plant control system 300, for making
Cool equipment, the control system includes：
Timing unit 302, for when refrigeration plant is opened, this operation duration to compressor to be recorded in real time；
Judging unit 304, for this operation duration of compressor and the preset duration in refrigeration plant to be compared,
Judge whether refrigeration plant belongs to high load capacity compression condition or underload compression condition；
Control unit 306, for according to this judged result to refrigeration plant operating mode, controlling the compressor of refrigeration plant
Steering when opening next time.
Pass through this fortune of the meeting recording compressed machine of timing unit 302 first in the refrigeration plant control system of the invention provided
Row duration, and by judging unit 304 using this operation duration as the criterion to refrigeration plant operating mode, when this
Operation duration it is longer when, that is, assert refrigeration plant be in high load capacity compression condition, now refrigeration plant compressor need carry
Freezed for relatively large number of compression refrigerant, being now accomplished by invariable frequency compressor has larger minimum cylinder volume, and in system
When cool equipment operation duration is shorter, refrigeration plant is identified in underload compression condition, then needs less minimum cylinder volume, is led to
Crossing has different minimum cylinder volumes when being set to rotate and reverse by compressor, ensure that and be identified as high bear in refrigeration plant
When lotus compression condition or underload compression condition, provide compressor by control unit 306 and hold with the suitable compression of demand
Product, to avoid that refrigeration is not good or refrigeration crosses the situation for even causing energy waste, according to refrigeration plant work
The result of determination of condition, just sets the steering of compressor at the beginning of next time starts so that compressor just can be from when opening next time
Begin to the whole demand for meeting user, simultaneously effective avoid the waste of the energy, reduce the unnecessary energy consumption of product, lifted
The competitiveness of product in market.
As shown in figure 4, in one embodiment of the invention, it is preferable that the refrigeration plant control system that the present invention is provided,
Wherein, the system includes：
Timing unit 402, for when refrigeration plant is opened, this operation duration to compressor to be recorded in real time；
Judging unit 404 specifically for：Judge whether this operation duration of compressor is less than or equal to the first preset duration,
When this operation duration of compressor is less than or equal to the first preset duration, then judge whether this operation duration of compressor is small
In the second preset duration；
Control unit 406 includes：First control unit 4062, it is pre- more than first for this operation duration when compressor
If during duration, controlling the compressor of refrigeration plant when opening next time, enabling the steering of high load capacity compression condition；Second control is single
Member 4064, for when this operation duration of compressor is less than the second preset duration, control compressor to be opened when opening next time
With the steering of underload compression condition；3rd control unit 4066, is more than or equal to for this operation duration when compressor
During two preset durations, control, which is compressed in when opening next time, to keep turning to this steering identical.
In this embodiment, first by this operation duration that recorded and the first preset duration in judging unit 404
It is compared, the first preset duration is the reference time length formerly set according to the refrigeration of compressor, when this operation duration
More than the first preset duration, illustrate that compressor opens the long period, further illustrate that user is higher to the demand of refrigeration,
Thus compressor can be controlled to keep high load capacity compression condition when opening next time by the first control unit 4062
Turn to, to meet the refrigeration demand that user is higher；When this operation duration is less than or equal to the first preset duration, then by judging
This operation duration is compared by unit with the second preset duration, and the second preset duration is also formerly according to the refrigeration of compressor
The reference time length of effect setting, when this operation duration of compressor is less than the second preset duration, illustrates that compressor is opened
Short period, further illustrate that user is relatively low to the demand of refrigeration, can thus be controlled by the second control unit 4064
Compressor processed can keep the steering of underload compression condition when opening next time, to meet the refrigeration demand that user is relatively low, when
When this operation duration of compressor is more than or equal to the second preset duration, now illustrate that the duration of user's unlatching refrigeration plant is fitted
Preferably, without being adjusted when starting next time, you can kept when being compressed in and open next time by the control of the 3rd control unit 4066
Turned to this steering identical.
In one embodiment of the invention, it is preferable that the first preset duration is more than the second preset duration.
In this embodiment, the first preset duration is set greater than the second preset duration, i.e. the first preset duration for root
The most long operating time set according to the refrigeration of compressor, the second preset duration is to be set according to the refrigeration of compressor
Most short operating time, length is also longer than most long operating time when running, then illustrates that the refrigeration of now refrigeration plant requires higher, pressure
Contracting machine needs to be maintained under the steering of high load capacity compression condition, and length is also shorter than most short operating time when running, then illustrates now
The refrigeration of refrigeration plant requires relatively low, and compressor needs to be maintained under the steering of underload compression condition.
In one embodiment of the invention, it is preferable that the steering of the high load capacity compression condition of compressor is rotating forward；With/
Or the steering of the underload compression condition of compressor is reversion.
In this embodiment, the rotating forward of compressor is set to the steering of high load capacity compression condition, now, by compressor
Compression volume is set to larger volume, and refrigeration is obvious；And the reversion of compressor is set to turning for underload compression condition
To now, the compression volume of compressor being set into smaller size smaller, refrigeration is not obvious；By the rotating forward of compressor and anti-
Transfer and realize different minimum cylinder volumes, and ensured compression function to run in the state of most saving, it is of course also possible to will compression
The reversion of machine is set to the steering of high load capacity compression condition；The rotating forward of compressor is set to the steering of underload compression condition, this
When be compressor internal mechanical structure setting it is different, its control principle is identical.
In one embodiment of the invention, it is preferable that minimum cylinder volume when compressor is rotated forward is more than when compression is inverted
Minimum cylinder volume.
In this embodiment, compression when minimum cylinder volume when compressor is rotated forward is set greater than compressor reverse rotation is held
Product so that compressor can be realized by rotating with different swept volumes, and different refrigerations can be provided,
To provide suitable minimum cylinder volume under suitable operating mode.
According to third object of the present invention, the invention provides a kind of refrigeration plant, with any implementation of second aspect
The refrigeration plant control system that example is provided, therefore, the refrigeration plant that embodiments of the invention are provided have any reality of second aspect
Whole beneficial effects of the refrigeration plant control system of example offer are provided, it is numerous to list herein.
As shown in figure 5, in one embodiment of the invention, it is preferable that also include：The throttling arrangement 2 that is sequentially connected, steam
Device 4, compressor 6 and condenser 8 are sent out, wherein, the work that swept volume when compressor 6 is rotated forward is more than when compressor 6 is inverted is held
Product.
In this embodiment, refrigeration plant also includes throttling arrangement 2, evaporator 4, compressor 6 and the condensation being sequentially connected
Device 8, and minimum cylinder volume when compressor 6 is rotated forward is set greater than minimum cylinder volume when compressor 6 is inverted so that compressor
6 can be realized by rotating with different swept volumes, and can provide different refrigerations, with suitable work
Suitable minimum cylinder volume is provided under condition.
In one embodiment of the invention, it is preferable that anti-condensation pipe 10, be arranged on throttling arrangement 2 and condenser 8 it
Between, for preventing dew condensation phenomenon.
In this embodiment, refrigeration plant also includes anti-condensation pipe 10, is arranged between throttling arrangement 2 and condenser 8, uses
In preventing dew condensation phenomenon, Consumer's Experience is improved.
In one embodiment of the invention, it is preferable that compressor 6 is determines frequency air-cylinder type compressor 6, and compressor 6 is rotated forward
When impulse stroke be more than compressor 6 invert when impulse stroke.
As shown in figure 5, in this embodiment, compressor 6 is set to invariable frequency compressor 6, the cost of invariable frequency compressor 6 compared with
Low, control circuit is relatively easy, and the impulse stroke during rotating forward of compressor 6 is more than impulse stroke when compressor 6 is inverted, and makes
Compression volume of the compressor 6 when rotating forward is set to larger volume, the impulse stroke of compressor 6 is refrigeration effect between 0 to 2
Fruit is substantially；Compression volume of the compressor 6 in reversion is set to smaller size smaller, and the impulse stroke of compressor 6 is system between 0 to 1
Cold DeGrain；Compressor 6 to pass through rotating to realize with different swept volumes, and difference can be provided
Refrigeration, to provide suitable minimum cylinder volume under suitable operating mode, improve the energy-saving effect of product.
In the present invention, term " multiple " then refers to two or more, unless otherwise clear and definite restriction.Term " peace
The term such as dress ", " connected ", " connection ", " fixation " all should be interpreted broadly, for example, " connection " can be fixedly connected, can also
It is to be detachably connected, or is integrally connected；" connected " can be joined directly together, and can also be indirectly connected to by intermediary.It is right
For one of ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of the invention, it is to be understood that term " on ", " under ", "front", "rear", " level ", " top ",
The orientation or position relationship of the instruction such as " bottom ", " interior ", " outer ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that combining the embodiment or specific features, structure, material or the feature of example description is contained at least one reality of the invention
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode is combined.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (14)
1. a kind of refrigeration plant control method, for refrigeration plant, it is characterised in that
When the refrigeration plant is opened, this operation duration to the compressor in the refrigeration plant is recorded in real time；
This operation duration of the compressor and the preset duration in the refrigeration plant are compared, the refrigeration is judged
Equipment working condition belongs to high load capacity compression condition or underload compression condition；
According to this judged result to the refrigeration plant operating mode, the compressor of the refrigeration plant is controlled when opening next time
Steering.
2. refrigeration plant control method according to claim 1, it is characterised in that judge whether the refrigeration plant belongs to
High load capacity compression condition or underload compression condition, and concretely comprising the following steps of being controlled to the compressor of the refrigeration plant：
At the end of the compressor operating, judge whether this operation duration of the compressor is more than the first preset duration；
When this operation duration of the compressor is more than first preset duration, the compressor of the refrigeration plant is controlled
When opening next time, the steering of high load capacity compression condition is enabled；
When this operation duration of the compressor is less than or equal to first preset duration, this of the compressor is judged
Whether operation duration is less than the second preset duration；
When this operation duration of the compressor is less than second preset duration, the compressor is controlled to be opened in next time
When, enable the steering of underload compression condition；
When this operation duration of the compressor is more than or equal to second preset duration, it is compressed in and opens next time described in control
Keep turning to this steering identical when opening.
3. refrigeration plant control method according to claim 2, it is characterised in that
First preset duration is more than second preset duration.
4. refrigeration plant control method according to claim 3, it is characterised in that
The steering of the high load capacity compression condition of the compressor is rotating forward；And/or
The steering of the underload compression condition of the compressor is reversion.
5. refrigeration plant control method according to claim 4, it is characterised in that
The minimum cylinder volume when compressor is rotated forward is more than the minimum cylinder volume during compression reversion.
6. a kind of refrigeration plant control system, for refrigeration plant, it is characterised in that including：
Timing unit, for when the refrigeration plant is opened, this operation duration to the compressor to be recorded in real time；
Judging unit, for this operation duration of the compressor and the preset duration in the refrigeration plant to be compared
Compared with judging whether the refrigeration plant belongs to high load capacity compression condition or underload compression condition；
Control unit, for according to this judged result to the refrigeration plant operating mode, controlling the compression of the refrigeration plant
Steering of the machine when opening next time.
7. refrigeration plant control system according to claim 6, it is characterised in that
The judging unit specifically for：
Judge whether this operation duration of the compressor is less than or equal to first preset duration, when the sheet of the compressor
When secondary operation duration is less than or equal to first preset duration, then judge whether this operation duration of the compressor is less than the
Two preset durations；
Described control unit includes：
First control unit, for when this operation duration of the compressor is more than first preset duration, controlling institute
The compressor of refrigeration plant is stated when opening next time, the steering of high load capacity compression condition is enabled；
Second control unit, for when this operation duration of the compressor is less than second preset duration, controlling institute
Compressor is stated when opening next time, the steering of underload compression condition is enabled；
3rd control unit, for when this operation duration of the compressor is more than or equal to second preset duration, controlling
It is compressed in described in system when opening next time and keeps turning to this steering identical.
8. refrigeration plant control system according to claim 7, it is characterised in that
First preset duration is more than second preset duration.
9. refrigeration plant control system according to claim 8, it is characterised in that
The steering of the high load capacity compression condition of the compressor is rotating forward；And/or
The steering of the underload compression condition of the compressor is reversion.
10. refrigeration plant control system according to claim 9, it is characterised in that
The minimum cylinder volume when compressor is rotated forward is more than the minimum cylinder volume during compression reversion.
11. a kind of refrigeration plant, it is characterised in that including the refrigeration plant control as any one of claim 6 to 10
System.
12. refrigeration plant according to claim 11, it is characterised in that also include：
Throttling arrangement, evaporator, compressor and the condenser being sequentially connected,
Wherein, the swept volume when compressor is rotated forward is more than the swept volume during compressor reverse rotation.
13. refrigeration plant according to claim 12, it is characterised in that also include：
Anti-condensation pipe, is arranged between the throttling arrangement and the condenser, for preventing dew condensation phenomenon.
14. the refrigeration plant according to claim 12 or 13, it is characterised in that
The compressor is determines frequency air-cylinder type compressor, and the impulse stroke when compressor is rotated forward is more than the compressor reverse rotation
When impulse stroke.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710170052.7A CN106969569A (en) | 2017-03-21 | 2017-03-21 | Refrigeration plant control method, system and refrigeration plant |
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| CN201710170052.7A CN106969569A (en) | 2017-03-21 | 2017-03-21 | Refrigeration plant control method, system and refrigeration plant |
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| CN201710170052.7A Pending CN106969569A (en) | 2017-03-21 | 2017-03-21 | Refrigeration plant control method, system and refrigeration plant |
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| CN107940873A (en) * | 2017-11-17 | 2018-04-20 | 合肥美的电冰箱有限公司 | Defrosting method, defrosting system, computer-readable recording medium and refrigeration plant |
| CN110940150A (en) * | 2019-12-24 | 2020-03-31 | 珠海格力电器股份有限公司 | Refrigerator energy-saving control method and device and refrigerator |
| WO2020134742A1 (en) * | 2018-12-28 | 2020-07-02 | 麦克维尔空调制冷(武汉)有限公司 | Compressor operation control method and control apparatus, and heat exchange system |
| CN113587363A (en) * | 2021-08-04 | 2021-11-02 | 广东美的暖通设备有限公司 | Compressor fault detection method and device, computing equipment and storage medium |
| CN113720093A (en) * | 2021-09-26 | 2021-11-30 | 珠海格力电器股份有限公司 | Refrigerator energy-saving control method and system and refrigerator |
| CN114279163A (en) * | 2021-12-29 | 2022-04-05 | Tcl家用电器（合肥）有限公司 | Control method and device of refrigeration equipment, storage medium and refrigeration equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107940873A (en) * | 2017-11-17 | 2018-04-20 | 合肥美的电冰箱有限公司 | Defrosting method, defrosting system, computer-readable recording medium and refrigeration plant |
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| CN113720093A (en) * | 2021-09-26 | 2021-11-30 | 珠海格力电器股份有限公司 | Refrigerator energy-saving control method and system and refrigerator |
| CN114279163A (en) * | 2021-12-29 | 2022-04-05 | Tcl家用电器（合肥）有限公司 | Control method and device of refrigeration equipment, storage medium and refrigeration equipment |
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