CN102339022B - Refrigerating capacity regulating and controlling method for ice-water system of frequency conversion refrigeration air conditioner - Google Patents
Refrigerating capacity regulating and controlling method for ice-water system of frequency conversion refrigeration air conditioner Download PDFInfo
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- CN102339022B CN102339022B CN2010102390687A CN201010239068A CN102339022B CN 102339022 B CN102339022 B CN 102339022B CN 2010102390687 A CN2010102390687 A CN 2010102390687A CN 201010239068 A CN201010239068 A CN 201010239068A CN 102339022 B CN102339022 B CN 102339022B
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Abstract
The invention relates to a refrigerating capacity regulating and controlling method for an ice-water system of a frequency conversion refrigeration air conditioner. The refrigerating capacity regulating and controlling method comprises the following steps of: reducing the refrigerating requirement of outburst or peak concentration by dispersing the refrigerating capacity of each requirement end so as to smoothen the frequency conversion load requirement; defining various operation programs respectively aiming at requirement ends with different refrigerating capacities to enable the operation programs to respectively have individually-defined corresponding high temperature-low temperature intervals; and redistributing the refrigerating capacity supplied by a frequency conversion ice-water host machine to the refrigerating capacity requirement end through temperature buffer zones in different operation programs to enable the frequency conversion ice-water host machine to operate a compressor in a smooth uniform mode and further achieve the effects of saving energy and electricity. In addition, the pipeline loss is considered and the refrigerating capacity error caused by damage or non-uniformity of the pipeline can be overcome by the refrigerating capacity regulating and controlling method.
Description
Technical field
The present invention relates to a kind of refrigerating and air conditioning ice water system refrigerating capacity regulate and control method, refer in particular to refrigerating capacity (the freezing efficiency of a variable-frequency freezing AC ice-water system) regulate and control method that relates to a kind of ice-water system of frequency conversion refrigeration air conditioner.
Background technology
Generally speaking, there is the place of business of temperature control demand or demand end equipment that office unit has (such as air conditioner, central air conditioner system, reach in freezer, refrigerator etc.), mostly need sizable power stage and cool house effect, general separated host may cause the problem of efficiency deficiency or high cost.Therefore a plurality of demand end equipment that most place of business is used all adopt the design of the ice water host computer that simultaneously is connected to rear end, with the heat exchange action of utilizing ice water host computer and demand end equipment room, reach the temperature control demand.For example, the freezing and refrigeration cabinet that amount is peddled, fresh food supermarket or freezing and refrigeration warehouse configure all is connected with the ice water host computer of rear end, completes heat interchange to utilize the cooling fluid that ice water host computer provides, and then reaches purpose freezing, refrigeration simultaneously.
In fact, the quantity delivered of ice water host computer is usually quite huge, and the quantity delivered of supplying with is larger, and the electric weight consumed is also just higher.The ice water host computer that the amount of take is peddled is example, due to its quantity delivered of supplying with mostly between several tons between hundreds of tons so that ice water host computer power consumption is also quite high, certainly, amount is peddled the electricity charge that a dealer pays because of ice water host computer, also considerable.If can effectively utilize the cold-room ability that ice water host computer is supplied with when starting running, and avoid starting and the number of times of closing running, certainly will be able to reduce significantly the cost that the dealer pays at air-conditioning, on freezing.
The electric weight consumed in order to save ice water host computer, so there is manufacturer to develop the frequency conversion ice water host computer that can change with the need operating frequency, to adjust the operating frequency of frequency conversion ice water host computer along with the quantity delivered total value, and then reduce power consumption, saves the electricity charge.With regard to its reason, be that refrigerating capacity quantity delivered because of the frequency conversion ice water host computer is directly proportional to operating frequency, power consumption is directly proportional to the cube of operating frequency again, that is to say, power consumption be directly proportional to the cube of quantity delivered, take typical frequency conversion ice water host computer power consumption that Fig. 1 was illustrated and the graph of relation of quantity delivered is the example explanation, when the half that the quantity delivered of frequency conversion ice water host computer is the quantity delivered higher limit, its electric weight consumed is only 12.5% (as shown in curve A) of electric quantity consumption higher limit.Yet, because the step of global warming is progressively accelerated, and the configuration of frequency conversion ice water host computer moves for many years already, therefore, the characteristic of only utilizing the frequency conversion ice water host computer can adjust along with refrigerating capacity quantity delivered total value operating frequency reaches the effect of saving the energy, can't meet gradually along with social trend and environmental consciousness improve the huge carbon reduction demand of bringing.
For this reason; how a kind of refrigerating capacity concocting method that solves all deficiencies of above-mentioned prior art is provided; can make the frequency conversion ice water host computer reach further the effect of energy saving; for the freezing of various different field and air-conditioning related needs, to provide effective and cost-effective power-saving mechanism; as promoting industrial competitiveness and a large niche of cutting operating costs; and then the purpose that reaches carbon reduction, preserves our planet, real is current technical matters urgently to be resolved hurrily.
Summary of the invention
In view of the shortcoming of above-mentioned prior art, the object of the invention is to effectively utilize the behavior in service of the running refrigerating capacity of frequency conversion ice water host computer with the frequency reduction, promote the energy saving effect of frequency conversion ice water host computer.
Another object of the present invention is to, with the mild evenly mode compressor that turns round, make compressor operation promote cold-room efficiency and reduce power consumption with supplying with under refrigerating capacity in stable operating frequency.
Based on above-mentioned or other purpose, the invention provides a kind of refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner, be applied to have in the ice water system of a plurality of refrigerating capacity feed ends and a plurality of refrigerating capacity demand ends, each of the plurality of refrigerating capacity demand end all has other current temperature, individual other temperature leak speed, and according to corresponding running program running, wherein, this refrigerating capacity regulate and control method comprises: (1) defines described running program, and each that makes described running program all has through individual other corresponding high temperature-low temperature interval, (2) by the current required total refrigerating capacity of the plurality of refrigerating capacity feed end supply, so that this other current temperature of each of the plurality of refrigerating capacity demand end all is being maintained in corresponding high temperature-low temperature interval in the time cycle at present, (3), according to each other current temperature, individual other temperature leak speed of the plurality of refrigerating capacity demand end, assessment is with so that all be maintained at predetermined total refrigerating capacity required in corresponding high temperature-low temperature interval in each predetermined time cycle of the plurality of refrigerating capacity demand end, and whether (4) judgement should reach a particular flow rate gap higher or lower than this current refrigerating capacity by predetermined total refrigerating capacity, if, utilize the high temperature-low temperature interval of running program corresponding to the plurality of refrigerating capacity demand end as the temperature buffer band, and each of the plurality of refrigerating capacity demand end of reappraising in this predetermined period of time, all be maintained at required in corresponding high temperature-low temperature interval should predetermined total refrigerating capacity, until should not reach this particular flow rate gap higher or lower than this current refrigerating capacity by predetermined total refrigerating capacity, and then by the plurality of refrigerating capacity feed end, supply the required predetermined total refrigerating capacity that is somebody's turn to do in this predetermined period of time, if not, by the plurality of refrigerating capacity feed end, supply the required predetermined total refrigerating capacity that is somebody's turn to do in this predetermined period of time.
In another aspect of this invention, predetermined total refrigerating capacity that the plurality of refrigerating capacity feed end is supplied also comprises that pipeline runs off, and for example pipeline is damaged or inhomogeneous.
In still another aspect of the invention, also comprise less important high temperature-low temperature interval in the corresponding high temperature-low temperature interval range of indivedual definition that described running program has, set the Temperature numerical in this corresponding high temperature-low temperature interval and this less important high temperature-low temperature interval according to described running program, as the temperature buffer band of specific running program.
In another aspect of the present invention, can allocate the plurality of refrigerating capacity demand end by the repeating query algorithm, carry out in turn different running programs to make the plurality of refrigerating capacity demand end, also can allocate the plurality of refrigerating capacity demand end by coordinating the Weighting type algorithm, with the character according to the plurality of refrigerating capacity demand end, make the plurality of refrigerating capacity demand end carry out in turn different running programs.
Than prior art, the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner of the present invention, by disperseing the refrigerating capacity of each demand end, reduce the freezing demand that concentrate on burst or peak, with mild frequency conversion loading demand, be suitable for being applied in the air-conditioning or refrigeration system that adopts the frequency conversion ice water host computer, improve the running efficiency of frequency conversion ice water host computer, reduce power consumption, and then effectively promote cold-room efficiency and cost benefit.
The accompanying drawing explanation
Fig. 1 is the graph of relation of typical frequency conversion ice water host computer power consumption and load factor;
Fig. 2 is the application architecture figure be applied in the refrigerating and air conditioning ice water system of the present invention;
Fig. 3 shows that refrigerating capacity demand end is according to the corresponding operating temperature band of different running programs;
Fig. 4 is the schematic diagram that provides the refrigerating capacity that gives a plurality of refrigerating capacity demand ends to be regulated and controled for the refrigerating capacity feed end according to the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner of the present invention;
Fig. 5 is the process flow diagram of the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner of the present invention.
The primary clustering symbol description
20 refrigerating capacity feed ends
21 refrigerating capacity demand ends
The 21a heat interchange
22 refrigerating capacity demand ends
The 22a heat interchange
23 refrigerating capacity demand ends
The 23a heat interchange
25 frozen water pipelines
26 monitoring clients
The 4A-4D refrigerating capacity
The S501-S504 step
The T1-T4 temperature
The t1-t5 unit interval
Embodiment
Be below, by specific instantiation, technology contents of the present invention is described, those skilled in the art can understand other advantage of the present invention and effect easily by content disclosed in the present specification.The present invention also can be different by other instantiation implemented or applied, the every details in this instructions also can be based on different viewpoints and application, carries out various modifications and change not deviating under spirit of the present invention.
Refer to Fig. 2, it shows that refrigerating capacity regulate and control method according to ice-water system of frequency conversion refrigeration air conditioner of the present invention is applied to have the framework in the ice water system of refrigerating capacity feed end 20 and a plurality of refrigerating capacity demand ends 21,22,23.As shown in the figure, in this ice water system, a plurality of refrigerating capacity demand ends 21,22,23 carry out heat interchange 21a, 22a, 23a by frozen water pipeline 25 with this refrigerating capacity feed end (ice water host computer) 20, to reach the effect of cooling.In this manual, refrigerating capacity demand end 21,22,23 can comprise that the various needs such as air conditioner, central air conditioner main machine, fresh reach in freezer, vegetables and fruits refrigerator carry out heat interchange to reduce the equipment of environment temperature.
Must propose explanation at this, the refrigerating capacity that this refrigerating capacity feed end (ice water host computer) 20 provides in this manual is defined as follows:
Frozen water flow * frozen water specific heat * (the frozen water turnover temperature difference)
Wherein, frozen water specific heat is the specific heat of the frozen water that provides of this refrigerating capacity feed end (ice water host computer) 20, and the temperature difference between the frozen water of the frozen water that the frozen water turnover temperature difference provides for this frozen water pipeline 25 and backflow.Hence one can see that, when the frozen water turnover temperature difference is greater than the specific temperature difference, represent that described refrigerating capacity demand end 21,22,23 needs more refrigerating capacities, and this refrigerating capacity feed end (ice water host computer) 20 can increase supplied refrigerating capacity by increasing the frozen water flow, and then reduce the frozen water turnover temperature difference, reach the effect of the described refrigerating capacity demand end of cooling.
In the present embodiment, each refrigerating capacity demand end 21,22,23 all has other current temperature and individual other temperature leak speed, and operates on corresponding running program.Yet indivedual temperature leak speed of each refrigerating capacity demand end 21,22,23 depend on suitable many factors, damaged old etc. such as: refrigerating capacity demand end characteristic, background environment temperature, pipeline.
Should be appreciated that, the temperature leak speed of indivedual refrigerating capacity demand ends can measure via monitoring client 26 at any time, is beneficial to each refrigerating capacity demand end 21,22,23 is carried out to real-time refrigerating capacity demand correction.In addition, except monitoring or measure the state of each refrigerating capacity demand end, also can carry out the running program setting to each refrigerating capacity demand end via this monitoring client 26, but not as limit.In other embodiments, different refrigerating capacity demand ends can arrange respectively corresponding monitoring client; Or, in a plurality of refrigerating capacity demand ends, part refrigerating capacity demand end is to be respectively arranged with corresponding monitoring client, part refrigerating capacity demand end is to share identical monitoring client.
In the present embodiment, at first must define respectively its corresponding running program to each refrigerating capacity demand end 21,22,23, each that makes described running program all has the corresponding high temperature-low temperature interval through indivedual definition.For example, described refrigerating capacity demand end 21,22,23 can have respectively different operating temperature scopes, that is to say, refrigerating capacity demand end 21 can be for example air conditioner, and its suitable operating temperature is between 23～28 degree Celsius; And refrigerating capacity demand end 22 can be for example the vegetables and fruits refrigerator, its suitable operating temperature is between 2～7 degree Celsius; 23, refrigerating capacity demand end can be for example server room, and its suitable operating temperature is between 20～25 degree Celsius.
Next, by the current required refrigerating capacity of each refrigerating capacity demand end 21,22,23 of this refrigerating capacity feed end 20 supply, make indivedual temperature T of described refrigerating capacity demand end 21,22,23
21, T
22, T
23can be maintained in corresponding high temperature-low temperature interval own.
Simultaneously, according to indivedual temperature of described refrigerating capacity demand end 21,22,23, individual other temperature leak speed, further assessment obtains making all being maintained at total refrigerating capacity required in corresponding high temperature-low temperature interval in described refrigerating capacity demand end 21,22,23 predetermined time cycle, is called in the present embodiment predetermined total refrigerating capacity.
If this predetermined total refrigerating capacity through assessment does not reach a particular flow rate gap higher or lower than current the supplied total refrigerating capacity of this refrigerating capacity feed end 20, by this refrigerating capacity feed end 20, in ensuing predetermined period of time, supply give described refrigerating capacity demand end 21,22,23 through predetermined total refrigerating capacity of assessment.
Yet, if this predetermined total refrigerating capacity through assessment reaches the particular flow rate gap higher or lower than current the supplied total refrigerating capacity of this refrigerating capacity feed end 20, must utilize each refrigerating capacity demand end 21, 22, reappraise and obtain making described refrigerating capacity demand end 21 as the temperature buffer band in the high temperature-low temperature interval of 23 corresponding running programs, 22, all be maintained at total refrigerating capacity required in corresponding high temperature-low temperature interval in 23 predetermined time cycle, until this predetermined total refrigerating capacity through assessment does not reach this particular flow rate gap higher or lower than current the supplied total refrigerating capacity of this refrigerating capacity feed end 20, and then by this refrigerating capacity feed end 20, in this predetermined period of time, confession should be through predetermined total refrigerating capacity of assessment.
For example, if according to described refrigerating capacity demand end 21, 22, indivedual temperature of 23, individual other temperature leak speed is assessed the predetermined total refrigerating capacity obtained and (is not yet supplied to give described refrigerating capacity demand end 21, 22, 23) gap more than having to a certain degree than current the supplied total refrigerating capacity of this refrigerating capacity feed end 20, flow control method of the present invention will be utilized each refrigerating capacity demand end 21, 22, the high temperature-low temperature interval that 23 running programs that set can be tolerated is as the temperature buffer band, make this refrigerating capacity feed end 20 be supplied to described refrigerating capacity demand end 21, 22, indivedual refrigerating capacities of 23 can be redistributed, and reappraise and obtain new predetermined total refrigerating capacity, until this new predetermined total refrigerating capacity than the gap of current the supplied total refrigerating capacity of this refrigerating capacity feed end 20 lower than to a certain degree.Thus, apply refrigerating capacity regulate and control method of the present invention on various frequency conversion ice water host computer, can make ice water host computer run under stable frequency, and then promote the effect of power and energy saving.
Refer to Fig. 3, it shows that refrigerating capacity demand end is according to the corresponding operating temperature band of different running programs.As shown in the figure, T1 is the lower edge (temperature minimum point) in high temperature-low temperature interval, and T2 is the lower edge in less important high temperature-low temperature interval, and T3 is the upper limb in less important high temperature-low temperature interval, and T4 is the upper limb (temperature peak) in high temperature-low temperature interval.For the demand of different refrigerating capacity demand ends, can adopt different operating temperature bands to set.
For example, described refrigerating capacity demand end 21,22,23 as shown in Figure 2 all can be set for respectively with different running programs and be operated, generally speaking, running program can comprise general running program, precooling program, and deviation allow program, but not as limit.
General running program allows that holding temperature for example, in the high temperature-low temperature interval range: the temperature of air conditioner allows that being maintained at Celsius 28～23 spends.This precooling program is allowed for corresponding refrigerating capacity demand end and is lowered the temperature in advance.In addition, deviation allows that program allows that holding temperature is in corresponding high temperature-low temperature interval range, and when surpassing corresponding less important high temperature-low temperature interval, temperature reaches a deviation after the allowed time, the corresponding refrigerating capacity demand end of lowering the temperature or stop lowering the temperature, with holding temperature in this corresponding less important high temperature-low temperature interval range, for example: the vegetables and fruits refrigerator allows that holding temperature is in 3～6 degree (less important high temperature-low temperature interval) Celsius, but in order to regulate and control refrigerating capacity or energy-conservation reason, can further allow that holding temperature is in-0～2 degree Celsius or 8～9 degree, wherein the high temperature-low temperature interval is 0～9 degree Celsius.
Refer to Fig. 4, it shows that refrigerating capacity regulate and control method according to the present invention provides respectively refrigerating capacity 4A, the 4B that gives described refrigerating capacity demand end 21,22,23, the schematic diagram that 4C is regulated and controled for the refrigerating capacity feed end 20 shown in Fig. 2.As shown in the figure, this refrigerating capacity feed end 20 is for refrigerating capacity that should described refrigerating capacity demand end 21,22,23 difference all to some extent in indivedual unit interval t1, t2, t3, t4, t5, main cause is that the background environment temperature due to each refrigerating capacity demand end may constantly continue (for example: temperature Change), or external thermal source (for example: the firm ice of vegetables and fruits refrigerator of refrigerating capacity demand end 23 enters the raw vegetable that temperature is higher) occurs to change.Thus, the operating frequency of this refrigerating capacity feed end 20 or load factor will constantly change, yet, when this type of change is greater than to a certain degree, can further increase the power consumption of this refrigerating capacity feed end 20.Therefore, refrigerating capacity regulate and control method of the present invention is controlled at specific difference in flow apart from interior (can according to user demand self-defining), to reach the effect of energy saving for the variation of total refrigerating capacity that should described refrigerating capacity demand end 21,22,23 by this refrigerating capacity feed end 20 in indivedual unit interval t1, t2, t3, t4, t5.
In the present embodiment, this refrigerating capacity demand end 21 operates under general running program, and the high temperature-low temperature interval range set is 28～23 degree Celsius.In addition, this refrigerating capacity demand end 22 operates under the precooling program, and the high temperature-low temperature interval range set is 0～9 degree Celsius.And this refrigerating capacity demand end 23 operates on deviation and allows under program, the high temperature-low temperature interval range set is 20～25 degree Celsius, and less important high temperature-low temperature interval range is 22～23 degree Celsius.What must propose explanation especially is, in different embodiment, refrigerating capacity regulate and control method of the present invention also can utilize the repeating query algorithm to allocate described refrigerating capacity demand end 21,22,23, to make described refrigerating capacity demand end 21,22,23, carries out in turn different running programs.Or, also can utilize the described refrigerating capacity demand end 21,22,23 of Weighting type algorithm allotment allotment, with the character according to described refrigerating capacity demand end 21,22,23, make described refrigerating capacity demand end 21,22,23 carry out in turn different running programs.
In unit interval t1, refrigerating capacity 4A, refrigerating capacity 4B, refrigerating capacity 4C and pipeline loss 4D add total refrigerating capacity that always this refrigerating capacity feed end 20 is supplied.Utilize refrigerating capacity regulate and control method of the present invention can assess in next unit interval t2, total refrigerating capacity that this refrigerating capacity feed end 20 may be supplied, if this total refrigerating capacity through assessment reaches to a certain degree higher or lower than the total refrigerating capacity in unit interval t1, redistribute indivedual refrigerating capacities that this refrigerating capacity feed end 20 is supplied to refrigerating capacity demand end 21,22,23.
It is basis with corresponding high temperature-low temperature interval range or less important high temperature-low temperature interval range that the redistributing of above-mentioned indivedual refrigerating capacities be take the different running programs that indivedual refrigerating capacity demand ends 21,22,23 set.For example, if described refrigerating capacity demand end 21, 22 all operate on general running program, and operating on deviation, this refrigerating capacity demand end 23 allows program, that is to say, described refrigerating capacity demand end 21, the 22 general running program high temperature-low temperature interval ranges that set are respectively 23～28 degree Celsius and 2～9 degree Celsius, and the deviation that this refrigerating capacity demand end 23 sets allows that program high temperature-low temperature interval range is 20～25 degree Celsius, and deviation allows that the less important high temperature-low temperature interval range of program is 22～23 degree Celsius, when the temperature of this refrigerating capacity demand end 21 approaches the upper limit 28 degree Celsius, and the temperature of this refrigerating capacity demand end 22 approaches the upper limit Celsius 9 while spending, the temperature of this refrigerating capacity demand end 23 can temporarily be maintained at 23～24 degree Celsius and reach a period of time, and during this period of time, this refrigerating capacity feed end 20 can reduce the refrigerating capacity that is supplied to this refrigerating capacity demand end 23, and by reduced refrigerating capacity then be supplied to this refrigerating capacity demand end 21 and 22, in order to this refrigerating capacity demand end 21 and 22 of lowering the temperature, can between a plurality of refrigerating capacity demand ends, regulate and control thus required refrigerating capacity out of the ordinary, reach the effect of stablizing total refrigerating capacity that this refrigerating capacity feed end 20 supplies.Thus, refrigerating capacity regulate and control method of the present invention can effectively redistribute this refrigerating capacity feed end 20 in indivedual unit interval t1, t2, t3, t4, t5 for total refrigerating capacity that should described refrigerating capacity demand end 21,22,23, the variation of total refrigerating capacity in indivedual unit interval t1, t2, t3, t4, t5 is controlled in particular range.
Via above-mentioned, understand, refrigerating capacity regulate and control method of the present invention indivedual refrigerating capacity demand ends of applying in a flexible way can operate on the characteristic of different running programs, effectively reach and stablize frequency conversion ice water host computer (refrigerating capacity feed end) 20 operating frequency and the effect of load factor.In addition, because the refrigerating capacity regulate and control method of the present invention 4D that further pipeline run off takes into account, therefore can be extraly for the refrigerating capacity caused because of the old breakage of pipeline or other reason, scatter and disappear and compensate.
Refer to Fig. 5, it shows the process flow diagram of refrigerating capacity regulate and control method of the present invention, this refrigerating capacity regulate and control method is applied to have in the ice water system of single or multiple refrigerating capacity feed end and single or multiple refrigerating capacity demand end, each refrigerating capacity demand end all has other current temperature, individual other temperature leak speed, and operates on corresponding running program.
In step S501, define a plurality of running programs, each that makes described running program all has the corresponding high temperature-low temperature interval through indivedual definition, then proceeds to step S502.
In step S502, by the current required total refrigerating capacity of this refrigerating capacity feed end supply, so that other current temperature of described refrigerating capacity demand end then proceeds to step S503 all being maintained in corresponding high temperature-low temperature interval in the time cycle at present.
In step S503, each other current temperature, individual other temperature leak speed according to described refrigerating capacity demand end, assessment, with so that all be maintained at predetermined total refrigerating capacity required in corresponding high temperature-low temperature interval in each predetermined time cycle of described refrigerating capacity demand end, then proceeds to step S504.
In step S504, whether judgement should reach a particular flow rate gap higher or lower than this current refrigerating capacity by predetermined total refrigerating capacity, if proceed to step S505; If not, proceed to step S506.
In step S505, the high temperature-low temperature interval that utilizes running program corresponding to the plurality of refrigerating capacity demand end is as the temperature buffer band and each of the plurality of refrigerating capacity demand end of reappraising all is maintained at predetermined total refrigerating capacity required in corresponding high temperature-low temperature interval in this predetermined period of time, until should not reach this particular flow rate gap higher or lower than this current refrigerating capacity by predetermined total refrigerating capacity, then proceed to step S506.
In step S506, supply required predetermined total refrigerating capacity by the plurality of refrigerating capacity feed end in this predetermined period of time.
From above-mentioned steps, refrigerating capacity regulate and control method of the present invention, by disperseing the refrigerating capacity of each demand end, reduces the freezing demand that concentrate on burst or peak, with mild frequency conversion loading demand.
Than prior art, the behavior in service that the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner of the present invention can effectively utilize the running refrigerating capacity of frequency conversion ice water host computer to reduce with frequency, with the mild evenly mode compressor that turns round, make compressor operation in stable operating frequency and supply with under refrigerating capacity, to promote cold-room efficiency and to reduce power consumption, can be applied to adopt in the air-conditioning or refrigeration system of frequency conversion ice water host computer simultaneously, improve the running efficiency of frequency conversion ice water host computer, reduce power consumption, and then effectively promote cold-room efficiency and cost benefit.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any those skilled in the art all can, under spirit of the present invention and category, modify and change above-described embodiment.Therefore, the scope of the present invention, should be as listed as claim.
Claims (10)
1. the refrigerating capacity regulate and control method of an ice-water system of frequency conversion refrigeration air conditioner, be applied to have in the ice water system of a plurality of refrigerating capacity feed ends and a plurality of refrigerating capacity demand ends, wherein, this refrigerating capacity is that the frozen water flow is multiplied by frozen water specific heat and is multiplied by the frozen water turnover temperature difference, each of the plurality of refrigerating capacity demand end all has other current temperature, individual other temperature leak speed, and, according to corresponding running program running, it is characterized in that, this refrigerating capacity regulate and control method comprises:
1) define the corresponding running program of the plurality of refrigerating capacity demand end, make this running program respectively all there is the corresponding high temperature-low temperature interval of definition, wherein, also comprise less important high temperature-low temperature interval in this corresponding high temperature-low temperature interval range, and this running program comprise general running program, precooling program, and deviation allow program;
2) by the current required total refrigerating capacity of the plurality of refrigerating capacity feed end supply, so that respectively the current temperature of this refrigerating capacity demand end all is being maintained in corresponding high temperature-low temperature interval in the time cycle at present;
3), according to respectively current temperature, individual other temperature leak speed of this refrigerating capacity demand end, assessment is with so that all be maintained at predetermined total refrigerating capacity required in corresponding high temperature-low temperature interval in each predetermined time cycle of the plurality of refrigerating capacity demand end; And
4) judge whether this predetermined total refrigerating capacity reaches a particular flow rate gap higher or lower than current the supplied total refrigerating capacity of this refrigerating capacity feed end, if, utilize the high temperature-low temperature interval of the indivedual corresponding running programs of this refrigerating capacity demand end respectively as the temperature buffer band, and to take different running programs that respectively this refrigerating capacity demand end sets and corresponding high temperature-low temperature interval range or less important high temperature-low temperature interval range be basis, and respectively this refrigerating capacity demand end of reappraising all is maintained at this predetermined total refrigerating capacity required in corresponding high temperature-low temperature interval in this predetermined period of time, until should not reach this particular flow rate gap higher or lower than this current supplied total refrigerating capacity by predetermined total refrigerating capacity, and then by the plurality of refrigerating capacity feed end, supply the required predetermined total refrigerating capacity that is somebody's turn to do in this predetermined period of time, if not, by the plurality of refrigerating capacity feed end, supply the required predetermined total refrigerating capacity that is somebody's turn to do in this predetermined period of time.
2. the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner according to claim 1, is characterized in that, this current required total refrigerating capacity also comprises that pipeline runs off.
3. the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner according to claim 1, is characterized in that, this predetermined total refrigerating capacity also comprises that pipeline runs off.
4. the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner according to claim 1, is characterized in that, the method also comprises the Temperature numerical of setting this corresponding high temperature-low temperature interval and this less important high temperature-low temperature interval according to this running program.
5. the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner according to claim 1, it is characterized in that, this general running program allows that holding temperature is in the high temperature-low temperature interval range, this precooling program is allowed for corresponding refrigerating capacity demand end and is lowered the temperature in advance, this deviation allows that program allows that holding temperature is in corresponding high temperature-low temperature interval range, when surpassing corresponding less important high temperature-low temperature interval, temperature reaches a deviation after the allowed time, the corresponding refrigerating capacity demand end of lowering the temperature or stop lowering the temperature, with holding temperature in this corresponding less important high temperature-low temperature interval range.
6. the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner according to claim 1, it is characterized in that, step 1) also comprise by the repeating query algorithm and allocate the plurality of refrigerating capacity demand end, to make the plurality of refrigerating capacity demand end, carry out in turn different running programs.
7. the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner according to claim 1, is characterized in that step 1) also comprise that the character according to the plurality of refrigerating capacity demand end makes the plurality of refrigerating capacity demand end carry out different running programs.
8. the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner according to claim 1, it is characterized in that, step 1) also comprise by the Weighting type algorithm and allocate the plurality of refrigerating capacity demand end, with the character according to the plurality of refrigerating capacity demand end, make the plurality of refrigerating capacity demand end carry out in turn different running programs.
9. the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner according to claim 1, is characterized in that, described refrigerating capacity feed end is the frequency conversion ice water host computer.
10. the refrigerating capacity regulate and control method of ice-water system of frequency conversion refrigeration air conditioner according to claim 1, is characterized in that, described refrigerating capacity demand end is reach in freezer, refrigerator, pressure fan and/or air conditioner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102390687A CN102339022B (en) | 2010-07-27 | 2010-07-27 | Refrigerating capacity regulating and controlling method for ice-water system of frequency conversion refrigeration air conditioner |
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| CN2010102390687A CN102339022B (en) | 2010-07-27 | 2010-07-27 | Refrigerating capacity regulating and controlling method for ice-water system of frequency conversion refrigeration air conditioner |
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| CN102339022B true CN102339022B (en) | 2013-12-11 |
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| CN (1) | CN102339022B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2739865B2 (en) * | 1992-05-21 | 1998-04-15 | 株式会社富士通ゼネラル | Control device for air conditioner |
| US6044652A (en) * | 1997-02-07 | 2000-04-04 | Matsushita Electric Industrial | Multi-room type air-conditioner |
| CN101140096A (en) * | 2007-10-18 | 2008-03-12 | 苏州艾隆科技有限公司 | electricity economizer centralized management method and system of central air-conditioning |
| CN101191651A (en) * | 2006-11-29 | 2008-06-04 | 海尔集团公司 | Sine DC frequency conversion multi-split air conditioner control system and its control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008175409A (en) * | 2007-01-16 | 2008-07-31 | Mitsubishi Electric Corp | Operation control method of air conditioning system, and air conditioning system |
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2010
- 2010-07-27 CN CN2010102390687A patent/CN102339022B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2739865B2 (en) * | 1992-05-21 | 1998-04-15 | 株式会社富士通ゼネラル | Control device for air conditioner |
| US6044652A (en) * | 1997-02-07 | 2000-04-04 | Matsushita Electric Industrial | Multi-room type air-conditioner |
| CN101191651A (en) * | 2006-11-29 | 2008-06-04 | 海尔集团公司 | Sine DC frequency conversion multi-split air conditioner control system and its control method |
| CN101140096A (en) * | 2007-10-18 | 2008-03-12 | 苏州艾隆科技有限公司 | electricity economizer centralized management method and system of central air-conditioning |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2008-175409A 2008.07.31 |
| JP第2739865号B2 1998.01.23 |
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| CN102339022A (en) | 2012-02-01 |
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