CN110006141A - The control method of air-cooled magnetic suspension unit and air-cooled magnetic suspension unit - Google Patents
The control method of air-cooled magnetic suspension unit and air-cooled magnetic suspension unit Download PDFInfo
- Publication number
- CN110006141A CN110006141A CN201910161589.6A CN201910161589A CN110006141A CN 110006141 A CN110006141 A CN 110006141A CN 201910161589 A CN201910161589 A CN 201910161589A CN 110006141 A CN110006141 A CN 110006141A
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- Prior art keywords
- compressor
- unit
- control method
- air
- magnetic suspension
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
Abstract
The invention belongs to air-conditioner set technical fields, it is intended to solve the problems, such as that existing air-cooled magnetic suspension unit easily influences the stability of unit or the normal use of user during single compressor operational mode switches double-compressor operational mode.For this purpose, the present invention provides a kind of control method of air-cooled magnetic suspension unit and air-cooled magnetic suspension units, the air-cooled magnetic suspension unit includes two compressors, which includes: to judge whether unit meets preset condition when unit is in single compressor operational mode；If unit meets preset condition, the compressor load down being currently running is run, the compressor not in operation is then turned on, so that unit is switched to double-compressor operational mode.It is uneven that unit of the invention can be avoided pressure distribution during single compressor operational mode switches double-compressor operational mode, guarantee the stability of unit operation, and water temperature will not be made short-time fluctuations occur, to will not influence the normal use of user, promote user experience.
Description
Technical field
The invention belongs to air-conditioner set technical fields, specifically provide the control method of a kind of air-cooled magnetic suspension unit and air-cooled
Magnetic suspension unit.
Background technique
Currently, being equipped with air-cooled magnetic suspension unit in some central air-conditioning, it is equipped in the air-cooled magnetic suspension unit in part
Double-compressor is equipped with the air-cooled magnetic suspension unit of double-compressor compared to the air-cooled magnetic suspension unit for being equipped with single compressor
Refrigerating capacity adjustable range it is bigger, and when a compressor breaks down/alarms wherein, another compressor is able to maintain
The normal operation of air-cooled magnetic suspension unit.
However, this air-cooled magnetic suspension unit with double-compressor runs switching double-compressor operation in single compressor
In the process, if directly initiating the compressor of not running, it may appear that pressure distribution is uneven, and then leads to the compressor being currently running
Or the compressor fluctuation of service that will start, the stability of unit is influenced, if it is right first to close the compressor being currently running
Start two compressors simultaneously again afterwards, will lead to water temperature and very big fluctuation occur, influence the normal use of user.
Therefore, this field needs a kind of control method of new air-cooled magnetic suspension unit and corresponding air-cooled magnetic suspension unit
To solve the above problems.
Summary of the invention
In order to solve the above problem in the prior art, transported in order to solve existing air-cooled magnetic suspension unit in single compressor
Easily influenced during row pattern switching double-compressor operational mode unit stability or user normal use the problem of,
The present invention provides a kind of control method of air-cooled magnetic suspension unit, which includes two compressors, the control
Method processed includes: to judge whether unit meets preset condition when unit is in single compressor operational mode；If unit meets
Preset condition then runs the compressor load down being currently running, is then turned on the compressor not in operation, so that unit switches
For double-compressor operational mode.
In the optimal technical scheme of above-mentioned control method, preset condition includes that the pressure at expulsion of unit is less than preset pressure
And continue the first preset time, the pressure that the leaving water temperature of unit is greater than preset temperature and continues the second preset time, is currently running
The full-load run time of contracting machine reaches third preset time and not in the compressor fault-free of operation.
In the optimal technical scheme of above-mentioned control method, preset pressure is 1.1 megapascal.
In the optimal technical scheme of above-mentioned control method, the first preset time and the second preset time are 180 seconds, the
Three preset times are 60 seconds.
In the optimal technical scheme of above-mentioned control method, the step of " make the compressor load down being currently running run ", has
Body includes: that the compressor being currently running is made to be reduced to minimum load operation.
In the optimal technical scheme of above-mentioned control method, " the compressor load down being currently running is run, is then turned on
Not in the compressor of operation " the step of specifically include: run the compressor load down being currently running and continue the 4th it is default when
Between, it is then turned on the compressor not in operation.
In the optimal technical scheme of above-mentioned control method, the 4th preset time is 30 seconds.
In the optimal technical scheme of above-mentioned control method, while the step of " opening not in the compressor of operation ",
Control method further include: run the compressor load up being currently running.
On the other hand, the present invention also provides a kind of air-cooled magnetic suspension unit, which includes controller, the controller
It is configured to execute above-mentioned control method.
In the optimal technical scheme of above-mentioned air-cooled magnetic suspension unit, unit further includes cylinder, and two compressors are respectively provided with
In in cylinder.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, with double-compressor
When air-cooled magnetic suspension unit is switched to double-compressor operational mode by single compressor operational mode, first make the compressor being currently running
Load down operation, then restarts the compressor of not running, and setting in this way can be avoided the pressure distribution of unit not
, the especially unit of cylinder double-compressor altogether, can guarantee that cylinder internal pressure balances, to guarantee the stabilization of unit operation
Property, and since unit remains operation, water temperature will not be made short-time fluctuations occur, thus will not influence the normal use of user,
Promote user experience.
Further, by setting preset condition, so that being in single compressor operational mode in unit and meeting default item
When part, unit is just made to be switched to double-compressor operational mode by single compressor operational mode, specifically, expiring when single compressor
When the load duration reaches long time, unit pressure at expulsion is insufficient, and leaving water temperature is excessively high, illustrates single compressor at this time
Operation can no longer meet the refrigeration requirement of unit, should increase compressor at this time to improve unit pressure at expulsion, reduce water outlet
Temperature, therefore under the premise of the compressor of not running is trouble-free, make its starting, to improve the pressure at expulsion of unit, reduces
Leaving water temperature to meet the refrigeration requirement of unit, and then meets the use demand of user, promotes user experience.
Further, first make the compressor being currently running with the smallest load operation, then restart the compression of not running
Machine utmostly can avoid the pressure of unit from distributing unevenness in Shangdi, guarantee the stability of unit, mention in this way
The service life of high unit.
Further, after the compressor start of not running, the compressor load up operation run before being allowed to is led to
Such setting is crossed, can either guarantee the stability of unit, while the pressure at expulsion of unit can be made to gradually rise, leaving water temperature
It gradually decreases, to meet the refrigeration requirement of unit, and then meets the use demand of user, further promote user experience.
Detailed description of the invention
Fig. 1 is the flow chart of the control method of air-cooled magnetic suspension unit of the invention；
Fig. 2 is the flow chart of the control method embodiment of air-cooled magnetic suspension unit of the invention.
Specific embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining technical principle of the invention, it is not intended that limit the scope of the invention.
It should be noted that in the description of the present invention, term " first ", " second ", " third ", " the 4th " are only used for retouching
Purpose is stated, relative importance is not understood to indicate or imply.
The existing air-cooled magnetic suspension unit pointed out based on background technique is transported in single compressor operational mode switching double-compressor
Easily influenced during row mode unit stability or user normal use the problem of, the present invention provides a kind of air-cooled
The control method of magnetic suspension unit and air-cooled magnetic suspension unit, it is intended to unit be made to switch double-compressor in single compressor operational mode
It is uneven that pressure distribution is avoided the occurrence of during operational mode, to guarantee the stability of unit operation, and water temperature will not be made to go out
Existing short-time fluctuations promote user experience to will not influence the normal use of user.
Air-cooled magnetic suspension unit of the invention includes two compressors, and the operational mode of the air-cooled magnetic suspension unit includes single
Compressor operational mode and double-compressor operational mode, as shown in Figure 1, control method of the invention includes: to be in single in unit
When compressor operational mode, judge whether unit meets preset condition；If unit meets preset condition, make to be currently running
The operation of compressor load down, is then turned on the compressor not in operation, so that unit is switched to double-compressor operational mode；If
Unit is unsatisfactory for preset condition, then unit is made to maintain single compressor operational mode.Wherein, preset condition may include the row of unit
Atmospheric pressure, the leaving water temperature of unit, the full-load run time of currently running compressor and other parameters condition etc. in unit,
For example, whether can judge unit to combine by the pressure at expulsion of unit and the full-load run time of currently running compressor
Switching of the single compressor operational mode to double-compressor operational mode is carried out, can also be transported by the leaving water temperature of unit with current
The full-load run time of capable compressor, which combines, judges whether unit carries out single compressor operational mode and run to double-compressor
The switching of mode, but can be by the full-load run of the pressure at expulsion of unit, leaving water temperature and currently running compressor when
Between to combine judge whether unit carries out switching of the single compressor operational mode to double-compressor operational mode, certainly, carry out single
Compressor mode must guarantee the compressor fault-free of not running to the switching of double-compressor mode, and those skilled in the art can be with
Flexibly set the particular content of preset condition in practical applications, if by the preset condition can judge unit whether by
Single compressor operational mode is switched to double-compressor operational mode.
Preferably, preset condition includes that the pressure at expulsion of unit is less than preset pressure and continues the first preset time, unit
Leaving water temperature be greater than preset temperature and continue the second preset time, the full-load run time for the compressor being currently running reaches the
Three preset times and not in the compressor fault-free of operation.Illustrate at this time it should be noted that pressure at expulsion is less than preset pressure
The pressure at expulsion of unit is insufficient, and the leaving water temperature of unit is greater than preset temperature and illustrates that leaving water temperature is excessively high at this time, and it is pre- to introduce first
When if time and the second preset time can be avoided judgement as unit fluctuation or detection error and caused by erroneous judgement, and draw
The full-load run time for entering the compressor being currently running can illustrate that the compressor being currently running at this time has been in peak load
Working condition can not improve the pressure at expulsion and refrigerating capacity of unit by this compressor, setting in this way
It sets, unit is allowed more precisely to determine whether to the switching of carry out mode, i.e., be switched to by single compressor operational mode
Double-compressor operational mode, in this embodiment, the setting principle of preset condition are as follows: first have to keep the compressor being currently running full
Carrying row and reach third preset time, i.e. peak load has been arrived in single compressor operation, and single compressor is capable of providing at this time
The pressure at expulsion of unit and the refrigerating capacity of leaving water temperature have arrived greatest limit, if the pressure at expulsion of unit still reaches at this time
Less than preset pressure and leaving water temperature still reaches to illustrate that unit has used single compressor operational mode at this time less than preset temperature
It is unable to satisfy refrigeration to require, it should be switched to double-compressor operational mode, under the premise of another compressor is trouble-free, first make
The compressor load down operation being currently running, then restarts the compressor not in operation, so that unit be made to be transported by single compressor
Row pattern switching is double-compressor operational mode, so that the pressure at expulsion of unit and the refrigerating capacity of unit are improved, to reduce
Leaving water temperature meets the refrigeration requirement of unit.
It should be noted that among the above, it is default that those skilled in the art can flexibly set first in practical applications
Time, the second preset time, third preset time, the specific value of preset pressure and preset temperature, as long as default by first
The pressure at expulsion separation of time separation, preset pressure confirmation that time, the second preset time and third preset time determine
And the leaving water temperature separation that preset temperature determines can determine whether unit needs to be switched to by single compressor operational mode
Double-compressor operational mode.In a kind of possible situation, preset pressure 1.1MPa, preset temperature is (Td+2) DEG C,
Wherein, Td is setting value, and the first preset time and the second preset time are 180 seconds, and third preset time is 60 seconds.
Preferably, the step of " running the compressor load down being currently running ", specifically includes: making the compression being currently running
Machine is reduced to minimum load operation.Wherein, the minimum load of compressor can pass through following formula CompRequireLoad=
CompActualLoad+ (CompChoke Speed-CompActualSpeed) × K2+20), wherein
CompRequireLoad is compressor load demand, and CompActualLoad is compressor actual load, CompChokeSpeed
For compressor surge revolving speed, CompActualSpeed is compressor actual speed, and K2 is coefficient, passes through this formula, Ke Yiji
The minimum operating load for obtaining compressor is calculated, so that unit is cut in progress single compressor operational mode to double-compressor operational mode
When changing, the compressor being currently running can be made to be reduced to minimum load operation, it is, of course, also possible to count by other formula
The minimum load of compressor is calculated, this adjustment and change using formula should all be limited without departing from technical solution of the present invention
Within protection scope of the present invention.In addition, currently running compressor can also be reduced to other load operations, as long as passing through
Currently running compressor reduces load and unit is made to carry out single compressor operational mode to the switching of double-compressor operational mode
When will not influence the stability of unit.
Preferably, the step of " running the compressor load down being currently running, to be then turned on the compressor not in operation "
It specifically includes: running the compressor load down being currently running and continue the 4th preset time, be then turned on the pressure not in operation
Contracting machine.Setting in this way, i.e., during unit switches double-compressor operational mode by single compressor operational mode, first
It runs currently running compressor load down and maintains a period of time, keep unit substantially stabilized, be then then turned on another not
In the compressor of operation, to guarantee unit all-the-time stable reliability service.Wherein, the 4th preset time can be 30 seconds, certainly,
4th preset time can also be other times, and it is default that those skilled in the art can flexibly set the 4th in practical applications
The specific value of time, as long as can determine not by the time separation that the 4th preset time determines in the compressor of operation
Opening time.
Preferably, while the step of " opening not in the compressor of operation ", control method of the invention further include: make
The compressor load up operation being currently running.I.e. in unit by the mistake of single compressor operational mode switching double-compressor operational mode
Cheng Zhong first runs currently running compressor load down, then continues for some time, be then turned on the compressor not in operation
And the compressor load up operation run before being allowed to first transports compressor A load down by taking compressor A and compressor B as an example
Row, then continues for some time, and then while opening compressor B, runs compressor load up, and then is guaranteeing unit
Under the premise of stability, unit is made to be switched to double-compressor operational mode by single compressor operational mode.
The preferred technical solution of the present invention is illustrated below with reference to a specific embodiment.
As shown in Fig. 2, compressor A operation, compressor B is not run after unit starting, judges whether unit meets and " arrange
Atmospheric pressure Pd < 1.1MPa simultaneously continues 180s, leaving water temperature > (Td+2) DEG C of unit and continues 180s, the fully loaded fortune of compressor A
The row time reaches 60s and compressor B fault-free " condition, if satisfied, then compressor A with minimum ability operate (i.e. minimal negative
Lotus operation), if not satisfied, the state that then unit maintains compressor A operation compressor B not run.In compressor A with minimum ability
When operating, judge whether the minimum ability duration of runs of compressor A reaches 30s, if reached, and compressor B starts, compressor
A exits minimum ability state；If not up to, compressor A keeps minimum ability operating.
In addition, in the present invention, air-cooled magnetic suspension unit further includes controller, which is configured to execute above-mentioned
Control method, in addition, the air-cooled magnetic suspension unit can for altogether the air-cooled magnetic suspension unit of cylinder, this unit includes cylinder,
And two compressors are all set in cylinder.
So far, it has been combined preferred embodiment shown in the drawings and describes technical solution of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement will fall within the scope of protection of the present invention.
Claims (10)
1. a kind of control method of air-cooled magnetic suspension unit, the air-cooled magnetic suspension unit includes two compressors, and feature exists
In the control method includes:
When the unit is in single compressor operational mode, judge whether the unit meets preset condition；
If the unit meets the preset condition, the compressor load down being currently running is run, is then turned on and does not exist
The compressor of operation, so that the unit is switched to double-compressor operational mode.
2. control method according to claim 1, which is characterized in that the preset condition includes the exhaust pressure of the unit
Power is less than preset pressure and continues the first preset time, the leaving water temperature of the unit is greater than preset temperature and it is default to continue second
Time, the compressor being currently running the full-load run time reach third preset time and not in the compressor fault-free of operation.
3. control method according to claim 2, which is characterized in that the preset pressure is 1.1 megapascal.
4. control method according to claim 2, which is characterized in that first preset time and it is described second it is default when
Between be 180 seconds, the third preset time be 60 seconds.
5. control method according to claim 1, which is characterized in that " running the compressor load down being currently running "
Step specifically includes:
The compressor being currently running is set to be reduced to minimum load operation.
6. control method according to claim 1, which is characterized in that " run the compressor load down being currently running, so
Open the compressor not in operation afterwards " the step of specifically include:
It runs the compressor load down being currently running and continues the 4th preset time, be then turned on the compressor not in operation.
7. control method according to claim 6, which is characterized in that the 4th preset time is 30 seconds.
8. control method according to claim 6, which is characterized in that " open not in the compressor of operation " the step of
Meanwhile the control method further include:
Run the compressor load up being currently running.
9. a kind of air-cooled magnetic suspension unit, the unit includes controller, which is characterized in that the controller is configured to hold
Row control method described in any item of the claim 1 to 8.
10. air-cooled magnetic suspension unit according to claim 9, which is characterized in that the unit further includes cylinder, and described two
A compressor is all set in the cylinder.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910161589.6A CN110006141A (en) | 2019-03-04 | 2019-03-04 | The control method of air-cooled magnetic suspension unit and air-cooled magnetic suspension unit |
| PCT/CN2019/108266 WO2020177307A1 (en) | 2019-03-04 | 2019-09-26 | Control method for air-cooled magnetic levitation unit, and air-cooled magnetic levitation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910161589.6A CN110006141A (en) | 2019-03-04 | 2019-03-04 | The control method of air-cooled magnetic suspension unit and air-cooled magnetic suspension unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110006141A true CN110006141A (en) | 2019-07-12 |
Family
ID=67166356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910161589.6A Pending CN110006141A (en) | 2019-03-04 | 2019-03-04 | The control method of air-cooled magnetic suspension unit and air-cooled magnetic suspension unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110006141A (en) |
| WO (1) | WO2020177307A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020177307A1 (en) * | 2019-03-04 | 2020-09-10 | 青岛海尔空调电子有限公司 | Control method for air-cooled magnetic levitation unit, and air-cooled magnetic levitation unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614325A (en) * | 2003-11-04 | 2005-05-11 | Lg电子株式会社 | Method for controlling operation of air-conditioner |
| CN102032647A (en) * | 2010-12-08 | 2011-04-27 | 海尔集团公司 | Magnetic suspension multi-nose central air-conditioning load distribution system and method |
| US20130251502A1 (en) * | 2012-03-20 | 2013-09-26 | World Heart Corporation | Method and Apparatus for Sensing of Levitated Rotor Position |
| CN108386974A (en) * | 2018-01-29 | 2018-08-10 | 青岛海尔空调电子有限公司 | Air-cooled magnetic suspension air-conditioner set and its control method |
| KR20180090125A (en) * | 2017-02-02 | 2018-08-10 | 엘지전자 주식회사 | Compressor driving apparatus and chiller including the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02267469A (en) * | 1989-04-05 | 1990-11-01 | Hitachi Ltd | Capacity control operation of air conditioner |
| CN102109207A (en) * | 2009-12-24 | 2011-06-29 | 东莞市广大制冷有限公司 | Multi-compressor air conditioner control method and system |
| CN108332380B (en) * | 2018-01-29 | 2020-11-27 | 青岛海尔空调电子有限公司 | Air-cooled magnetic suspension air conditioning unit and control method thereof |
| CN109282436B (en) * | 2018-08-27 | 2020-02-07 | 珠海格力电器股份有限公司 | Air conditioning unit compressor control method and device, computer equipment and storage medium |
| CN110006141A (en) * | 2019-03-04 | 2019-07-12 | 青岛海尔空调电子有限公司 | The control method of air-cooled magnetic suspension unit and air-cooled magnetic suspension unit |
-
2019
- 2019-03-04 CN CN201910161589.6A patent/CN110006141A/en active Pending
- 2019-09-26 WO PCT/CN2019/108266 patent/WO2020177307A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614325A (en) * | 2003-11-04 | 2005-05-11 | Lg电子株式会社 | Method for controlling operation of air-conditioner |
| CN102032647A (en) * | 2010-12-08 | 2011-04-27 | 海尔集团公司 | Magnetic suspension multi-nose central air-conditioning load distribution system and method |
| US20130251502A1 (en) * | 2012-03-20 | 2013-09-26 | World Heart Corporation | Method and Apparatus for Sensing of Levitated Rotor Position |
| KR20180090125A (en) * | 2017-02-02 | 2018-08-10 | 엘지전자 주식회사 | Compressor driving apparatus and chiller including the same |
| CN108386974A (en) * | 2018-01-29 | 2018-08-10 | 青岛海尔空调电子有限公司 | Air-cooled magnetic suspension air-conditioner set and its control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020177307A1 (en) * | 2019-03-04 | 2020-09-10 | 青岛海尔空调电子有限公司 | Control method for air-cooled magnetic levitation unit, and air-cooled magnetic levitation unit |
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| Publication number | Publication date |
|---|---|
| WO2020177307A1 (en) | 2020-09-10 |
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Application publication date: 20190712 |