CN104281762A - Method and device for model selection of multi-union air-conditioning system - Google Patents
Method and device for model selection of multi-union air-conditioning system Download PDFInfo
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- CN104281762A CN104281762A CN201310275500.1A CN201310275500A CN104281762A CN 104281762 A CN104281762 A CN 104281762A CN 201310275500 A CN201310275500 A CN 201310275500A CN 104281762 A CN104281762 A CN 104281762A
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Abstract
The invention discloses a method for model selection of a multi-union air-conditioning system. According to the method, the fall correction factor of each indoor unit is determined according to the fall between the indoor unit and an outdoor unit, the connecting pipe length factor of each indoor unit is determined according to the length of a forward pipeline and the number of forward elbows of the indoor unit, and the lengths of forward pipelines and the number of forward elbows of all branch pipes between the indoor unit and an outdoor unit, the model of each indoor unit is selected according to the indoor environment temperature correction factor of the indoor unit, then the connecting pipe correction factor of the outdoor unit is determined according to the length of a connecting pipe between the outdoor unit and the farthest indoor unit, and then the model of the outdoor unit is selected. By the adoption of the method for model selection of the multi-union air-conditioning system, the accuracy of model selection can be improved, and then it is guaranteed that the capacity of the indoor units and outdoor unit is matched with environment requirements. Furthermore, the invention discloses a device for model selection of the multi-union air-conditioning system.
Description
Technical field
The invention belongs to air-conditioning technical field, particularly relate to a kind of selection method and type selecting device of multi-connected air conditioning system.
Background technology
Multi-connected air conditioning system refers to an off-premises station and connects more than two or two indoor sets by pipe arrangement.Multi-connected air conditioning system obtains increasingly extensive application at present in small and medium construction and part public building.
At present, user selects the model of indoor set and off-premises station often according to careat and personal experience, therefore the type selecting accuracy of indoor set and off-premises station not high, easily there is deviation, cause the ability of indoor set and off-premises station not mated with environmental demand.When the ability of indoor set and off-premises station is lower than environmental demand, indoor set and off-premises station are by long-time oepration at full load, the serviceable life of equipment can be shortened, when the model that indoor set and off-premises station select ability too high, indoor set and off-premises station will to cross underrun, its COP value (conversion ratio between energy and heat is called for short heating energy efficiency ratio) will decline greatly, add operating cost.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of selection method and device of multi-connected air conditioning system, in order to improve the type selecting accuracy of indoor set and off-premises station, thus ensure that the ability of indoor set and off-premises station and environmental demand match.
For achieving the above object, the invention provides following technical scheme:
The invention discloses a kind of selection method of multi-connected air conditioning system, comprising:
Obtain the positional information of off-premises station, obtain forward direction duct length and the forward direction elbow number of each branch pipe, obtain the positional information of each indoor set, forward direction duct length and forward direction elbow number, wherein, the positional information of described off-premises station at least comprises the setting height(from bottom) information of described off-premises station, and the positional information of described indoor set at least comprises the setting height(from bottom) information of described indoor set;
Determine the drop between each indoor set and described off-premises station;
Determine the model of each indoor set respectively, determine that the model of an indoor set comprises:
Determine the type selecting correction factor of described indoor set, the type selecting correction factor of described indoor set comprises connecting pipe length correction coefficient, drop correction factor and indoor environment temperature correction factor, the connecting pipe length correction coefficient of described indoor set is according to the forward direction duct length of described indoor set and forward direction elbow number, and the forward direction duct length of whole branch pipes between described indoor set and off-premises station and forward direction elbow number are determined, the drop correction factor of described indoor set is determined according to the drop between described indoor set and described off-premises station;
Residing for indoor set, the indoor heat load in room and the type selecting correction factor of described indoor set, determine the model of described indoor set;
Calculate the rated power sum of each indoor set;
Determine the type selecting correction factor of described off-premises station, the type selecting correction factor of described off-premises station comprises outdoor environment temperature correction factor, connecting pipe length correction coefficient and drop correction factor, the connecting pipe length correction coefficient of described off-premises station is determined according to the length of the connecting pipe between described off-premises station and position indoor set farthest, and the drop correction factor of described off-premises station is determined according to the drop between described off-premises station and described position indoor set farthest;
The model of described off-premises station is determined according to the type selecting correction factor of described off-premises station and the rated power sum of each indoor set described.
Preferably, in above-mentioned selection method, the indoor heat load in described room residing for indoor set and the type selecting correction factor of described indoor set, determine the model of described indoor set, comprising:
Utilize formula P
2=P
1/ (C
1* C
2* C
3) calculate the calculated load P of described indoor set
2, wherein, P
1the indoor heat load in room residing for described indoor set, C
1for the indoor environment temperature correction factor of described indoor set, C
2for the connecting pipe length correction coefficient of described indoor set, C
3for the drop correction factor of described indoor set;
In the unit series of preliminary election, select the model of indoor set, the rated power of the indoor set of described model is greater than the calculated load P of described indoor set
2and with the calculated load P of described indoor set
2between difference minimum.
Preferably, in above-mentioned selection method, the described model determining described off-premises station according to the type selecting correction factor of described off-premises station and the rated power sum of each indoor set described, comprising:
Utilize formula P
4=P
3/ (C
4* C
5* C
6) determine the calculated load P of described off-premises station
4, wherein, P
3for the rated power sum of each indoor set, C
4for the outdoor environment temperature correction factor of described off-premises station, C
5for the connecting pipe length correction coefficient of described off-premises station, C
6for the drop correction factor of described off-premises station;
In the unit series of preliminary election, select the model of off-premises station, the rated power of the off-premises station of described model is greater than the calculated load P of described off-premises station
4and with the calculated load P of described off-premises station
4between difference minimum.
Preferably, in above-mentioned selection method, after the model determining each indoor set respectively, also comprise the step of the model determining each branch pipe;
Determine that the model of a branch pipe comprises:
When described branch pipe is end branch pipe, select the model of described branch pipe according to the rated power sum of the indoor set be connected with described branch pipe;
When described branch pipe is non-end branch pipe, calculate be positioned at the rated power of whole indoor sets in described branch pipe downstream and value, according to model that is described and the described branch pipe of value selection.
Preferably, in above-mentioned selection method, after the model determining each branch pipe, also comprise:
Determine the downstream leg capacity ratio of each branch pipe;
Judge whether the downstream leg capacity ratio of each branch pipe is in corresponding preset range, when the downstream leg capacity ratio of pipe of disagreeing exceedes corresponding preset range, export prompting.
Preferably, in above-mentioned selection method, determine that the indoor environment temperature correction factor of indoor set comprises:
Obtain indoor dry-bulb temperature value, wet-bulb temperature value and rh value, and the dry-bulb temperature value of outdoor;
According to the dry-bulb temperature value of described indoor, wet-bulb temperature value and rh value, and the environment temperature correction factor of the dry-bulb temperature value determination indoor set of outdoor.
Preferably, in above-mentioned selection method, determine that residing for indoor set, the indoor heat load in room comprises:
Obtain floor space and the room type of user's input;
Determine and the load index that described room type matches;
Calculate the product of described floor space and load index, described product is defined as the indoor heat load in room residing for described indoor set.
On the other hand, the invention also discloses a kind of type selecting device of multi-connected air conditioning system, comprising:
Information acquisition unit, for obtaining the positional information of off-premises station, obtain forward direction duct length and the forward direction elbow number of each branch pipe, obtain the positional information of each indoor set, forward direction duct length and forward direction elbow number, wherein, the positional information of described off-premises station at least comprises the setting height(from bottom) information of described off-premises station, and the positional information of described indoor set at least comprises the setting height(from bottom) information of described indoor set;
Drop determining unit, for determining the drop between each indoor set and described off-premises station;
Indoor set type selecting unit, for determining the model of each indoor set respectively, described indoor set type selecting unit comprises indoor set type selecting correction factor determination subelement and indoor set type selecting subelement;
Described indoor set type selecting correction factor determination subelement is for determining the type selecting correction factor of described indoor set, the type selecting correction factor of described indoor set comprises connecting pipe length correction coefficient, drop correction factor and indoor environment temperature correction factor, the connecting pipe length correction coefficient of described indoor set is according to the forward direction duct length of described indoor set and forward direction elbow number, and the forward direction duct length of whole branch pipes between described indoor set and off-premises station and forward direction elbow number are determined, the drop correction factor of described indoor set is determined according to the drop between described indoor set and described off-premises station,
Described indoor set type selecting subelement is used for the indoor heat load in room and the type selecting correction factor of described indoor set residing for indoor set, determines the model of described indoor set;
Computing unit, for calculating the rated power sum of each indoor set;
Off-premises station type selecting correction factor determining unit, for determining the type selecting correction factor of described off-premises station, the type selecting correction factor of described off-premises station comprises outdoor environment temperature correction factor, connecting pipe length correction coefficient and drop correction factor, the connecting pipe length correction coefficient of described off-premises station is determined according to the length of the connecting pipe between described off-premises station and position indoor set farthest, and the drop correction factor of described off-premises station is determined according to the drop between described off-premises station and described position indoor set farthest;
Off-premises station type selecting unit, for determining the model of described off-premises station according to the type selecting correction factor of described off-premises station and the rated power sum of each indoor set described.
Preferably, in above-mentioned type selecting device, described indoor set type selecting subelement comprises:
Indoor set calculated load determination module, for utilizing formula P
2=P
1/ (C
1* C
2* C
3) calculate the calculated load P of described indoor set
2, wherein, P
1the indoor heat load in room residing for described indoor set, C
1for the indoor environment temperature correction factor of described indoor set, C
2for the connecting pipe length correction coefficient of described indoor set, C
3for the drop correction factor of described indoor set;
Indoor set type selecting module, for selecting the model of indoor set in the unit series of preliminary election, the rated power of the indoor set of described model is greater than the calculated load P of described indoor set
2and with the calculated load P of described indoor set
2between difference minimum.
Preferably, in above-mentioned type selecting device, described off-premises station type selecting unit comprises:
Off-premises station calculated load determination module, for utilizing formula P
4=P
3/ (C
4* C
5* C
6) determine the calculated load P of described off-premises station
4, wherein, P
3for the rated power sum of each indoor set, C
4for the outdoor environment temperature correction factor of described off-premises station, C
5for the connecting pipe length correction coefficient of described off-premises station, C
6for the drop correction factor of described off-premises station;
Off-premises station type selecting module, for selecting the model of off-premises station in the unit series of preliminary election, the rated power of the off-premises station of described model is greater than the calculated load P of described off-premises station
4and with the calculated load P of described off-premises station
4between difference minimum.
Preferably, above-mentioned type selecting device also comprises: branch pipe type selecting unit, for determining the model of each branch pipe,
When described branch pipe is end branch pipe, described branch pipe type selecting unit selects the model of described branch pipe according to the rated power sum of the indoor set be connected with described branch pipe, when described branch pipe is non-end branch pipe, described branch pipe type selecting unit calculate be positioned at the rated power of whole indoor sets in described branch pipe downstream and value, according to model that is described and the described branch pipe of value selection.
Preferably, above-mentioned type selecting device also comprises branch pipe type selecting detecting unit, for determining the downstream leg capacity ratio of each branch pipe, judge whether the downstream leg capacity ratio of each branch pipe is in corresponding preset range, when the downstream leg capacity ratio of pipe of disagreeing exceedes corresponding preset range, export prompting.
Preferably, above-mentioned type selecting device also comprises indoor environment temperature correction factor determining unit, for obtaining indoor dry-bulb temperature value, wet-bulb temperature value and rh value, and the dry-bulb temperature value of outdoor, afterwards according to the dry-bulb temperature value of described indoor, wet-bulb temperature value and rh value, and the environment temperature correction factor of the dry-bulb temperature value determination indoor set of outdoor.
Preferably, above-mentioned type selecting device also comprises indoor heat load determining unit, for obtaining floor space and the room type of user's input, determine and the load index that described room type matches, calculate the product of described floor space and load index, described product is defined as the indoor heat load of described indoor set.
As can be seen here, beneficial effect of the present invention is: the selection method of multi-connected air conditioning system disclosed by the invention, according to the drop correction factor of the drop determination indoor set of indoor set and off-premises station, according to the forward direction duct length of indoor set and forward direction elbow number and the forward direction duct length and the forward direction elbow number that are connected to all branch pipes between indoor set and off-premises station, determine the connecting pipe length factor of indoor set, and select the model of indoor set in conjunction with the indoor environment temperature correction factor of indoor set, afterwards, according to the connecting pipe length correction coefficient of the length determination off-premises station of the connecting pipe between off-premises station and position indoor set farthest, according to the drop correction factor of the drop determination off-premises station between off-premises station and described position indoor set farthest, select the model of off-premises station accordingly.In the process selecting indoor set model and off-premises station model, because multiple factor affecting type selecting accuracy and matching degree is all taken into account, therefore can improve the accuracy of type selecting, thus ensure that the ability of indoor set and off-premises station and environmental demand match.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the process flow diagram of the selection method of a kind of multi-connected air conditioning system disclosed by the invention;
Fig. 2 is the process flow diagram of the selection method of another kind of multi-connected air conditioning system disclosed by the invention;
Fig. 3 is the process flow diagram of the selection method of another kind of multi-connected air conditioning system disclosed by the invention;
Fig. 4 is the structural representation of the type selecting device of a kind of multi-connected air conditioning system disclosed by the invention;
Fig. 5 is the structural representation of indoor set type selecting subelement disclosed by the invention;
Fig. 6 is the structural representation of off-premises station type selecting unit disclosed by the invention;
Fig. 7 is the structural representation of the type selecting device of another kind of multi-connected air conditioning system disclosed by the invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The present invention discloses a kind of selection method of multi-connected air conditioning system, in order to improve the type selecting accuracy of indoor set and off-premises station, thus ensures that the ability of indoor set and off-premises station and environmental demand match.
It is the process flow diagram of the selection method of a kind of multi-connected air conditioning system disclosed by the invention see Fig. 1, Fig. 1.Comprise:
Step S1: the positional information obtaining off-premises station.
The positional information of off-premises station at least comprises the setting height(from bottom) information of this off-premises station, can represent by the distance between off-premises station and ground, also can represent by the distance of off-premises station and preset reference point in the vertical direction.
Step S2: the forward direction duct length and the forward direction elbow number that obtain each branch pipe.
Multi-connected air conditioning system comprises an off-premises station and multiple indoor set, and off-premises station is connected by one or more branch pipe and corresponding pipeline with before an indoor set, is provided with multiple branch pipe in a multi-connected air conditioning system.
A branch pipe comprises an entrance and two outlets.The forward direction duct length of branch pipe refers to the length of the pipeline between entrance and another device being connected to this branch pipe, the forward direction elbow number of branch pipe is connected to the quantity that the pipeline between the entrance of this branch pipe and another device curves, and this another device is another branch pipe or is off-premises station.
Step S3: obtain the positional information of each indoor set, forward direction duct length and forward direction elbow number.
The positional information of indoor set at least comprises the setting height(from bottom) information of indoor set, can represent by the distance between indoor set and ground, also can represent by the distance of indoor set and preset reference point in the vertical direction.The forward direction duct length of indoor set refers to that the length of the pipeline connecting this indoor set and its corresponding branch pipe, the forward direction elbow number of indoor set are the quantity that the pipeline connecting this indoor set and its corresponding branch pipe curves.
Indoor set must be connected to a branch pipe (can think end branch pipe, the outlet of end branch pipe is connected to indoor set) an outlet, the length connecting the pipeline of indoor set and this end branch pipe is the forward direction duct length of this indoor set, and the quantity that the pipeline connecting indoor set and this end branch pipe curves is the forward direction duct length of this indoor set.
Step S4: determine the drop between each indoor set and off-premises station.
According to the positional information of off-premises station and the positional information of each indoor set, the drop between each indoor set and off-premises station just can be determined respectively.Concrete: the difference calculating the setting height(from bottom) information of off-premises station and the setting height(from bottom) of indoor set, this difference as the drop between indoor set and off-premises station, when difference is on representing that indoor set is arranged on when bearing; Or, calculate the difference of the setting height(from bottom) information of indoor set and the setting height(from bottom) information of off-premises station, this difference as the difference between indoor set and off-premises station, when difference is on timing represents that indoor set is arranged on.
Step S5: the model determining each indoor set respectively.
Wherein, determine that the operation of the model of an indoor set comprises: the type selecting correction factor determining indoor set; Residing for indoor set, the indoor heat load in room and the type selecting correction factor of indoor set, determine the model of this indoor set.The type selecting correction factor of indoor set comprises: the connecting pipe length correction coefficient of indoor set, the drop correction factor of indoor set and the indoor environment temperature correction factor of indoor set.
The connecting pipe length correction coefficient of indoor set is according to the forward direction duct length of this indoor set and forward direction elbow number, and the forward direction duct length of whole branch pipes between this indoor set and off-premises station and forward direction elbow number are determined.Indoor set is connected to off-premises station by one or more branch pipe and corresponding pipeline, in enforcement, determine forward direction duct length and the forward direction elbow number of all branch pipes between indoor set and off-premises station, in conjunction with forward direction duct length and the forward direction elbow number of this indoor set, just can determine the quantity of the branch pipe between this indoor set and off-premises station, the length of all pipelines, and there is the quantity of bending in pipeline.Afterwards, bend the corresponding relation of quantity and indoor set connecting pipe length correction coefficient according to the branch pipe quantity, duct length and the pipeline that prestore, determine the connecting pipe length correction coefficient of this indoor set.
The drop correction factor of indoor set is determined according to the drop between this indoor set and off-premises station.In enforcement, by inquiring about the corresponding relation of the drop between indoor set and off-premises station and the indoor set drop correction factor prestored, determine the drop correction factor of this indoor set.
Step S6: the rated power sum calculating each indoor set.
Step S7: the type selecting correction factor determining off-premises station.
The type selecting correction factor of off-premises station comprises: the drop correction factor of the outdoor environment temperature correction factor of off-premises station, the connecting pipe length correction coefficient of off-premises station and off-premises station.Wherein, the connecting pipe length correction coefficient of off-premises station is determined according to the length of the connecting pipe between off-premises station and position indoor set farthest, and the drop correction factor of off-premises station is determined according to the drop between off-premises station and position indoor set farthest.
In enforcement, distance off-premises station indoor set farthest can be determined in several ways.Such as: the duct length calculating the whole pipelines connecting each indoor set and off-premises station respectively, the indoor set with maximum duct length is distance off-premises station position indoor set farthest.Afterwards, using maximum duct length as querying condition, by inquiring about the corresponding relation of the connecting pipe length correction coefficient of duct length and the off-premises station prestored, determine the connecting pipe length correction coefficient of off-premises station.Obtaining the drop between distance off-premises station position indoor set farthest and off-premises station, using this drop as querying condition, by inquiring about the corresponding relation of drop and the off-premises station drop correction factor prestored, determining the drop correction factor of off-premises station.
Citing is described: if multi-connected air conditioning system comprises indoor set 1, indoor set 2 and indoor set 3, calculate the duct length of the whole pipelines connecting indoor set 1 and off-premises station, calculate the duct length of the whole pipelines connecting indoor set 2 and off-premises station, calculate the duct length of the whole pipelines connecting indoor set 3 and off-premises station, determine the maximal value in three duct lengths, the indoor set corresponding with this maximal value is distance off-premises station indoor set farthest.
Step S8: according to the model of the type selecting correction factor of off-premises station and the rated power sum determination off-premises station of each indoor set.
The selection method of multi-connected air conditioning system disclosed by the invention, according to the drop correction factor of the drop determination indoor set of indoor set and off-premises station, according to the forward direction duct length of indoor set and forward direction elbow number and the forward direction duct length and the forward direction elbow number that are connected to all branch pipes between indoor set and off-premises station, determine the connecting pipe length factor of indoor set, and select the model of indoor set in conjunction with the indoor environment temperature correction factor of indoor set, afterwards, according to the connecting pipe length correction coefficient of the length determination off-premises station of the connecting pipe between off-premises station and position indoor set farthest, according to the drop correction factor of the drop determination off-premises station between off-premises station and described position indoor set farthest, select the model of off-premises station accordingly.In the process selecting indoor set model and off-premises station model, because multiple factor affecting type selecting accuracy and matching degree is all taken into account, therefore can improve the accuracy of type selecting, thus ensure that the ability of indoor set and off-premises station and environmental demand match.
In enforcement, the indoor heat load in room and the type selecting correction factor of indoor set residing for indoor set, determine that the step of the model of this indoor set comprises:
Utilize formula P
2=P
1/ (C
1* C
2* C
3) calculate the calculated load P of indoor set
2; In the unit series of preliminary election, select the model of indoor set, the rated power of the indoor set of this chosen model is greater than the calculated load P of indoor set
2and with the calculated load P of indoor set
2between difference minimum.Wherein, P
1the indoor heat load in room residing for indoor set, C
1for the indoor environment temperature correction factor of indoor set, C
2for the connecting pipe length correction coefficient of indoor set, C
3for the drop correction factor of indoor set.
When determining the calculated load P of indoor set
2after, compare calculated load P
2with the rated power of institute's organic type indoor set in the unit series of preliminary election, determine that rated power is greater than this calculated load P
2alternative type, afterwards in alternative type select with this calculated load P
2between the minimum type of difference, this type is the model of indoor set.
Step according to the model of the type selecting correction factor of off-premises station and the rated power sum determination off-premises station of each indoor set comprises:
Utilize formula P
4=P
3/ (C
4* C
5* C
6) determine the calculated load P of described off-premises station
4; In the unit series of preliminary election, select the model of off-premises station, the rated power of the off-premises station of this chosen model is greater than the calculated load P of off-premises station
4and with the calculated load P of off-premises station
4between difference minimum.Wherein, P
3for the rated power sum of each indoor set, C
4for the outdoor environment temperature correction factor of off-premises station, C
5for the connecting pipe length correction coefficient of off-premises station, C
6for the drop correction factor of off-premises station.
In addition, also can according to formula P
4=P
3/ (C
4* C
5* C
6* C
7) determine the calculated load P of off-premises station
4, wherein, C
7for the system capability index of off-premises station, C
7can be arranged between 50% to 135%.
When determining the calculated load P of off-premises station
4after, compare calculated load P
4with the rated power of institute's organic type off-premises station in the unit series of preliminary election, determine that rated power is greater than this calculated load P
4alternative type, afterwards in alternative type select with this calculated load P
4between the minimum type of difference, this type is the model of off-premises station.
It is the process flow diagram of the selection method of another kind of multi-connected air conditioning system disclosed by the invention see Fig. 2, Fig. 2.Compared with selection method shown in Fig. 1, also comprise after step s8: step S9, determine the model of each branch pipe.
Wherein, determine that the step of the model of a branch pipe comprises:
When branch pipe is end branch pipe, select the model of branch pipe according to the rated power sum of the indoor set be connected with this branch pipe;
When branch pipe is non-end branch pipe, calculate be positioned at the rated power of whole indoor sets in this branch pipe downstream and value, according to the model of this and value selection branch pipe.
Branch pipe in multi-connected air conditioning system is divided into end branch pipe and non-end branch pipe according to its position, and the outlet of end branch pipe is connected to indoor set, and the outlet of non-end branch pipe is connected to the entrance of other branch pipes.When selecting the model of end branch pipe, calculate be connected to the rated power of whole indoor sets of the outlet of this branch pipe and value, according to the corresponding relation of power and branch pipe model, determine the branch pipe signal corresponding with value with this rated power.When selecting the model of non-end branch pipe, calculate be positioned at the rated power of whole indoor sets in this branch pipe downstream and value, according to the corresponding relation of power and branch pipe model, determine the branch pipe signal corresponding with value with this rated power.The indoor set being positioned at non-end branch pipe downstream refers to the indoor set being finally connected to this non-end branch pipe by other branch pipes.
In the selection method shown in Fig. 2 of the present invention, not only complete the type selecting to indoor set and off-premises station, and the model selection of each branch pipe is completed according to the rated power of the indoor set being positioned at branch pipe downstream, due to the selection of branch pipe model, whether appropriate relation can stable operation to whole air-conditioning system, therefore, based on selection method shown in Fig. 2, can ensure that air-conditioning system can stable operation further.
It is the process flow diagram of the selection method of another kind of multi-connected air conditioning system disclosed by the invention see Fig. 3, Fig. 3.Compared with selection method shown in Fig. 2, also comprise after step S9:
Step S10: the downstream leg capacity ratio determining each branch pipe.
The downstream capacity of branch pipe refer to the indoor set that two branch roads (two outlets) of this branch pipe connect capacity and.The downstream leg capacity ratio of branch pipe refer to the indoor set of two outlet downstream being positioned at branch pipe capacity and ratio, first calculate all indoor sets (be connected directly to this outlet or be connected to the indoor set of this outlet indirectly by other branch pipes) being positioned at a branch pipe outlet downstream capacity and, calculate afterwards the capacity being positioned at all indoor sets of this another outlet downstream of branch pipe and, two capacity and ratio be the downstream leg capacity ratio of this branch pipe.
Such as: first outlet of branch pipe a is connected to indoor set 1, second outlet of branch pipe a is connected to indoor set 2, then the downstream leg capacity ratio of branch pipe a is the capacity of the capacity/indoor set 2 of indoor set 1, or is the capacity of capacity/indoor set 1 of indoor set 2.
Such as: first outlet of branch pipe a is connected to indoor set 1 and indoor set 2 by branch pipe b, second outlet of branch pipe a is connected to indoor set 3 and indoor set 4 by branch pipe c, then the downstream leg capacity ratio of this branch pipe a is (capacity of the capacity+indoor set 2 of indoor set 1)/(capacity of the capacity+indoor set 4 of indoor set 3), or is (capacity of the capacity+indoor set 4 of indoor set 3)/(capacity of the capacity+indoor set 2 of indoor set 1).
Step S11: judge whether the downstream leg capacity ratio of each branch pipe is in corresponding preset range, when the downstream leg capacity ratio of pipe of disagreeing exceedes corresponding preset range, exports prompting.
The downstream leg capacity ratio of each branch pipe has corresponding preset range, when the downstream leg capacity ratio of branch pipe exceedes corresponding preset range, illustrate that the type selecting of this branch pipe goes wrong, the requirement of air-conditioning system stable operation can not be met, export prompting.
Selection method shown in Fig. 3 of the present invention, whether the further downstream leg capacity ratio judging branch pipe is in corresponding preset range, and export prompting when exceeding preset range, preventing the improper air-conditioning system that causes of branch pipe type selecting can not the problem of stable operation.
State on the invention in each selection method disclosed, the indoor environment temperature correction factor of indoor set can be inputted by user, also can determine in the following way:
Obtain indoor dry-bulb temperature value, wet-bulb temperature value and rh value, and the dry-bulb temperature value of outdoor; According to the dry-bulb temperature value of indoor, wet-bulb temperature value and rh value, and the dry-bulb temperature value of outdoor calculates the environment temperature correction factor of indoor set.
In addition, the indoor heat load in room residing for indoor set can be inputted by user, also can determine in the following way:
Obtain floor space and the room type of user's input; Determine the load index matched with room type; Calculate the product of floor space and load index, this product is defined as the indoor heat load of indoor set.
The selection method of the above disclosed multi-connected air conditioning system of the present invention, accordingly, the type selecting device of the open multi-connected air conditioning system of the present invention, to realize this selection method.
It is the structural representation of the type selecting device of multi-connected air conditioning system disclosed by the invention see Fig. 4, Fig. 4.This type selecting device comprises information acquisition unit 100, drop determining unit 200, indoor set type selecting unit 300, computing unit 400, off-premises station type selecting correction factor determining unit 500 and off-premises station type selecting unit 600.
Information acquisition unit 100, for obtaining the positional information of off-premises station, obtaining forward direction duct length and the forward direction elbow number of each branch pipe, obtaining the positional information of each indoor set, forward direction duct length and forward direction elbow number.Wherein, the positional information of off-premises station at least comprises the setting height(from bottom) information of off-premises station, and the positional information of indoor set at least comprises the setting height(from bottom) information of indoor set.
Drop determining unit 200, for determining the drop between each indoor set and off-premises station.
Indoor set type selecting unit 300, for determining the model of each indoor set respectively, indoor set type selecting unit comprises indoor set type selecting correction factor determination subelement and indoor set type selecting subelement.
Wherein, indoor set type selecting correction factor determination subelement is for determining the type selecting correction factor of indoor set, the type selecting correction factor of indoor set comprises connecting pipe length correction coefficient, drop correction factor and indoor environment temperature correction factor, the connecting pipe length correction coefficient of indoor set is according to the forward direction duct length of indoor set and forward direction elbow number, and the forward direction duct length of whole branch pipes between indoor set and off-premises station and forward direction elbow number are determined, the drop correction factor of indoor set is determined according to the drop between indoor set and off-premises station.
Indoor set type selecting subelement is used for the indoor heat load in room and the type selecting correction factor of indoor set residing for indoor set, determines the model of indoor set.
Computing unit 400, for calculating the rated power sum of each indoor set.
Off-premises station type selecting correction factor determining unit 500, for determining the type selecting correction factor of off-premises station, the type selecting correction factor of off-premises station comprises outdoor environment temperature correction factor, connecting pipe length correction coefficient and drop correction factor, the connecting pipe length correction coefficient of off-premises station is determined according to the length of the connecting pipe between off-premises station and position indoor set farthest, and the drop correction factor of off-premises station is determined according to the drop between off-premises station and position indoor set farthest.
Off-premises station type selecting unit 600, for the model according to the type selecting correction factor of off-premises station and the rated power sum determination off-premises station of each indoor set.
The type selecting device of multi-connected air conditioning system disclosed by the invention, in the process selecting indoor set model and off-premises station model, because multiple factor affecting type selecting accuracy and matching degree is all taken into account, therefore can improve the accuracy of type selecting, thus ensure that the ability of indoor set and off-premises station and environmental demand match.
In enforcement, indoor set type selecting subelement comprises indoor set calculated load determination module 303 and indoor set type selecting module 304, as shown in Figure 5.
Indoor set calculated load determination module 303, for utilizing formula P
2=P
1/ (C
1* C
2* C
3) calculate the calculated load P of indoor set
2, wherein, P
1the indoor heat load in room residing for indoor set, C
1for the indoor environment temperature correction factor of indoor set, C
2for the connecting pipe length correction coefficient of indoor set, C
3for the drop correction factor of indoor set.Indoor set type selecting module 304, for selecting the model of indoor set in the unit series of preliminary election, the rated power of the indoor set of model is greater than the calculated load P of indoor set
2and with the calculated load P of indoor set
2between difference minimum.
Off-premises station type selecting unit 600 comprises off-premises station calculated load determination module 601 and off-premises station type selecting module 602, as shown in Figure 6.
Off-premises station calculated load determination module 601, for utilizing formula P
4=P
3/ (C
4* C
5* C
6) determine the calculated load P of off-premises station
4, wherein, P
3for the rated power sum of each indoor set, C
4for the outdoor environment temperature correction factor of off-premises station, C
5for the connecting pipe length correction coefficient of off-premises station, C
6for the drop correction factor of off-premises station.Off-premises station type selecting module 602, for selecting the model of off-premises station in the unit series of preliminary election, the rated power of the off-premises station of model is greater than the calculated load P of off-premises station
4and with the calculated load P of off-premises station
4between difference minimum.
Certainly, off-premises station calculated load determination module 601 also can replace by another module, and this module utilizes formula P
4=P
3/ (C
4* C
5* C
6* C
7) determine the calculated load P of described off-premises station
4, wherein, P
3for the rated power sum of each indoor set, C
4for the outdoor environment temperature correction factor of off-premises station, C
5for the connecting pipe length correction coefficient of off-premises station, C
6for the drop correction factor of off-premises station, C
7for the system capability index of off-premises station.
It is the structural representation of the type selecting device of another kind of multi-connected air conditioning system disclosed by the invention see Fig. 7, Fig. 7.Compared with the device of type selecting shown in Fig. 6, branch pipe type selecting unit 700 and branch pipe type selecting detecting unit 800 are set further.
Branch pipe type selecting unit 700 is for determining the model of each branch pipe, when branch pipe is end branch pipe, branch pipe type selecting unit 700 selects the model of branch pipe according to the rated power sum of the indoor set be connected with branch pipe, when branch pipe is non-end branch pipe, branch pipe type selecting unit 700 calculate be positioned at the rated power of whole indoor sets in branch pipe downstream and value, according to the model with value selection branch pipe.
Branch pipe type selecting detecting unit 800, for determining the downstream leg capacity ratio of each branch pipe, judge whether the downstream leg capacity ratio of each branch pipe is in corresponding preset range, when the downstream leg capacity ratio of pipe of disagreeing exceedes corresponding preset range, export prompting.
Type selecting device shown in Fig. 7 of the present invention, the model selection of each branch pipe is completed further according to the rated power of the indoor set being positioned at branch pipe downstream, judge that the downstream leg capacity ratio of branch pipe is whether in corresponding preset range afterwards, and export prompting when exceeding preset range, preventing the improper air-conditioning system that causes of branch pipe type selecting can not the problem of stable operation.
State in disclosed type selecting device on the invention, the indoor environment temperature correction factor of indoor set can be inputted by user, is now obtained the indoor environment temperature correction factor of indoor set by data capture unit 100.
Also can indoor environment temperature correction factor determining unit be set in type selecting device further in enforcement.This indoor environment temperature correction factor determining unit is for obtaining indoor dry-bulb temperature value, wet-bulb temperature value and rh value, and the dry-bulb temperature value of outdoor, afterwards according to the dry-bulb temperature value of indoor, wet-bulb temperature value and rh value, and the environment temperature correction factor of the dry-bulb temperature value determination indoor set of outdoor.
In addition, the indoor heat load in room residing for indoor set can be inputted by user, is now obtained the indoor heat load in room residing for indoor set by data capture unit 100.
In enforcement, also indoor heat load determining unit can be set further in type selecting device.This indoor heat load determining unit, for obtaining floor space and the room type of user's input, is determined the load index matched with room type, is calculated the product of floor space and load index, product is defined as the indoor heat load of indoor set.
Finally, also it should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Professional can also recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random access memory (RAM), internal memory, ROM (read-only memory) (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (14)
1. a selection method for multi-connected air conditioning system, is characterized in that, comprising:
Obtain the positional information of off-premises station, obtain forward direction duct length and the forward direction elbow number of each branch pipe, obtain the positional information of each indoor set, forward direction duct length and forward direction elbow number, wherein, the positional information of described off-premises station at least comprises the setting height(from bottom) information of described off-premises station, and the positional information of described indoor set at least comprises the setting height(from bottom) information of described indoor set;
Determine the drop between each indoor set and described off-premises station;
Determine the model of each indoor set respectively, determine that the model of an indoor set comprises:
Determine the type selecting correction factor of described indoor set, the type selecting correction factor of described indoor set comprises connecting pipe length correction coefficient, drop correction factor and indoor environment temperature correction factor, the connecting pipe length correction coefficient of described indoor set is according to the forward direction duct length of described indoor set and forward direction elbow number, and the forward direction duct length of whole branch pipes between described indoor set and off-premises station and forward direction elbow number are determined, the drop correction factor of described indoor set is determined according to the drop between described indoor set and described off-premises station;
Residing for indoor set, the indoor heat load in room and the type selecting correction factor of described indoor set, determine the model of described indoor set;
Calculate the rated power sum of each indoor set;
Determine the type selecting correction factor of described off-premises station, the type selecting correction factor of described off-premises station comprises outdoor environment temperature correction factor, connecting pipe length correction coefficient and drop correction factor, the connecting pipe length correction coefficient of described off-premises station is determined according to the length of the connecting pipe between described off-premises station and position indoor set farthest, and the drop correction factor of described off-premises station is determined according to the drop between described off-premises station and described position indoor set farthest;
The model of described off-premises station is determined according to the type selecting correction factor of described off-premises station and the rated power sum of each indoor set described.
2. selection method according to claim 1, is characterized in that, the indoor heat load in described room residing for indoor set and the type selecting correction factor of described indoor set, determines the model of described indoor set, comprising:
Utilize formula P
2=P
1/ (C
1* C
2* C
3) calculate the calculated load P of described indoor set
2, wherein, P
1the indoor heat load in room residing for described indoor set, C
1for the indoor environment temperature correction factor of described indoor set, C
2for the connecting pipe length correction coefficient of described indoor set, C
3for the drop correction factor of described indoor set;
In the unit series of preliminary election, select the model of indoor set, the rated power of the indoor set of described model is greater than the calculated load P of described indoor set
2and with the calculated load P of described indoor set
2between difference minimum.
3. selection method according to claim 2, is characterized in that, the described model determining described off-premises station according to the type selecting correction factor of described off-premises station and the rated power sum of each indoor set described, comprising:
Utilize formula P
4=P
3/ (C
4* C
5* C
6) determine the calculated load P of described off-premises station
4, wherein, P
3for the rated power sum of each indoor set, C
4for the outdoor environment temperature correction factor of described off-premises station, C
5for the connecting pipe length correction coefficient of described off-premises station, C
6for the drop correction factor of described off-premises station;
In the unit series of preliminary election, select the model of off-premises station, the rated power of the off-premises station of described model is greater than the calculated load P of described off-premises station
4and with the calculated load P of described off-premises station
4between difference minimum.
4. the selection method according to claim 1,2 or 3, is characterized in that, after the model determining each indoor set respectively, also comprises the step of the model determining each branch pipe;
Determine that the model of a branch pipe comprises:
When described branch pipe is end branch pipe, select the model of described branch pipe according to the rated power sum of the indoor set be connected with described branch pipe;
When described branch pipe is non-end branch pipe, calculate be positioned at the rated power of whole indoor sets in described branch pipe downstream and value, according to model that is described and the described branch pipe of value selection.
5. selection method according to claim 4, is characterized in that, after the model determining each branch pipe, also comprises:
Determine the downstream leg capacity ratio of each branch pipe;
Judge whether the downstream leg capacity ratio of each branch pipe is in corresponding preset range, when the downstream leg capacity ratio of pipe of disagreeing exceedes corresponding preset range, export prompting.
6. selection method according to claim 5, is characterized in that, determines that the indoor environment temperature correction factor of indoor set comprises:
Obtain indoor dry-bulb temperature value, wet-bulb temperature value and rh value, and the dry-bulb temperature value of outdoor;
According to the dry-bulb temperature value of described indoor, wet-bulb temperature value and rh value, and the environment temperature correction factor of the dry-bulb temperature value determination indoor set of outdoor.
7. selection method according to claim 6, is characterized in that, determines that residing for indoor set, the indoor heat load in room comprises:
Obtain floor space and the room type of user's input;
Determine and the load index that described room type matches;
Calculate the product of described floor space and load index, described product is defined as the indoor heat load in room residing for described indoor set.
8. a type selecting device for multi-connected air conditioning system, is characterized in that, comprising:
Information acquisition unit, for obtaining the positional information of off-premises station, obtain forward direction duct length and the forward direction elbow number of each branch pipe, obtain the positional information of each indoor set, forward direction duct length and forward direction elbow number, wherein, the positional information of described off-premises station at least comprises the setting height(from bottom) information of described off-premises station, and the positional information of described indoor set at least comprises the setting height(from bottom) information of described indoor set;
Drop determining unit, for determining the drop between each indoor set and described off-premises station;
Indoor set type selecting unit, for determining the model of each indoor set respectively, described indoor set type selecting unit comprises indoor set type selecting correction factor determination subelement and indoor set type selecting subelement;
Described indoor set type selecting correction factor determination subelement is for determining the type selecting correction factor of described indoor set, the type selecting correction factor of described indoor set comprises connecting pipe length correction coefficient, drop correction factor and indoor environment temperature correction factor, the connecting pipe length correction coefficient of described indoor set is according to the forward direction duct length of described indoor set and forward direction elbow number, and the forward direction duct length of whole branch pipes between described indoor set and off-premises station and forward direction elbow number are determined, the drop correction factor of described indoor set is determined according to the drop between described indoor set and described off-premises station,
Described indoor set type selecting subelement is used for the indoor heat load in room and the type selecting correction factor of described indoor set residing for indoor set, determines the model of described indoor set;
Computing unit, for calculating the rated power sum of each indoor set;
Off-premises station type selecting correction factor determining unit, for determining the type selecting correction factor of described off-premises station, the type selecting correction factor of described off-premises station comprises outdoor environment temperature correction factor, connecting pipe length correction coefficient and drop correction factor, the connecting pipe length correction coefficient of described off-premises station is determined according to the length of the connecting pipe between described off-premises station and position indoor set farthest, and the drop correction factor of described off-premises station is determined according to the drop between described off-premises station and described position indoor set farthest;
Off-premises station type selecting unit, for determining the model of described off-premises station according to the type selecting correction factor of described off-premises station and the rated power sum of each indoor set described.
9. type selecting device according to claim 8, is characterized in that, described indoor set type selecting subelement comprises:
Indoor set calculated load determination module, for utilizing formula P
2=P
1/ (C
1* C
2* C
3) calculate the calculated load P of described indoor set
2, wherein, P
1the indoor heat load in room residing for described indoor set, C
1for the indoor environment temperature correction factor of described indoor set, C
2for the connecting pipe length correction coefficient of described indoor set, C
3for the drop correction factor of described indoor set;
Indoor set type selecting module, for selecting the model of indoor set in the unit series of preliminary election, the rated power of the indoor set of described model is greater than the calculated load P of described indoor set
2and with the calculated load P of described indoor set
2between difference minimum.
10. type selecting device according to claim 9, is characterized in that, described off-premises station type selecting unit comprises:
Off-premises station calculated load determination module, for utilizing formula P
4=P
3/ (C
4* C
5* C
6) determine the calculated load P of described off-premises station
4, wherein, P
3for the rated power sum of each indoor set, C
4for the outdoor environment temperature correction factor of described off-premises station, C
5for the connecting pipe length correction coefficient of described off-premises station, C
6for the drop correction factor of described off-premises station;
Off-premises station type selecting module, for selecting the model of off-premises station in the unit series of preliminary election, the rated power of the off-premises station of described model is greater than the calculated load P of described off-premises station
4and with the calculated load P of described off-premises station
4between difference minimum.
Type selecting device described in 11. according to Claim 8,9 or 10, is characterized in that, also comprise: branch pipe type selecting unit, for determining the model of each branch pipe,
When described branch pipe is end branch pipe, described branch pipe type selecting unit selects the model of described branch pipe according to the rated power sum of the indoor set be connected with described branch pipe, when described branch pipe is non-end branch pipe, described branch pipe type selecting unit calculate be positioned at the rated power of whole indoor sets in described branch pipe downstream and value, according to model that is described and the described branch pipe of value selection.
12. type selecting devices according to claim 11, it is characterized in that, also comprise branch pipe type selecting detecting unit, for determining the downstream leg capacity ratio of each branch pipe, judge whether the downstream leg capacity ratio of each branch pipe is in corresponding preset range, when the downstream leg capacity ratio of pipe of disagreeing exceedes corresponding preset range, export prompting.
13. type selecting devices according to claim 12, it is characterized in that, also comprise indoor environment temperature correction factor determining unit, for obtaining indoor dry-bulb temperature value, wet-bulb temperature value and rh value, and the dry-bulb temperature value of outdoor, afterwards according to the dry-bulb temperature value of described indoor, wet-bulb temperature value and rh value, and the environment temperature correction factor of the dry-bulb temperature value determination indoor set of outdoor.
14. type selecting devices according to claim 13, it is characterized in that, also comprise indoor heat load determining unit, for obtaining floor space and the room type of user's input, determine and the load index that described room type matches, calculate the product of described floor space and load index, described product is defined as the indoor heat load of described indoor set.
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| CN106530046A (en) * | 2016-10-31 | 2017-03-22 | 广东美的制冷设备有限公司 | Method and apparatus for matching air conditioners based on use scenes |
| CN107121300A (en) * | 2017-04-21 | 2017-09-01 | 珠海格力电器股份有限公司 | A kind of equipment optimization system of selection, device and equipment |
| CN107143970A (en) * | 2017-04-18 | 2017-09-08 | 珠海格力电器股份有限公司 | Air-conditioning selection method and device |
| CN107166634A (en) * | 2017-04-25 | 2017-09-15 | 青岛海尔空调器有限总公司 | A kind of air conditioner and its control method |
| CN108241908A (en) * | 2018-01-17 | 2018-07-03 | 深圳市云科设计咨询服务有限公司 | A kind of new method of multi-online air-conditioning system outdoor unit type selecting |
| CN110006096A (en) * | 2019-04-15 | 2019-07-12 | 廊坊新奥泛能网络科技服务有限公司 | Choosing method, device and the electronic equipment of heating machine set |
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| CN110175778A (en) * | 2019-05-27 | 2019-08-27 | 珠海格力电器股份有限公司 | Unit efficiency planning system |
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| CN105631772A (en) * | 2015-12-31 | 2016-06-01 | 广东美的制冷设备有限公司 | Method and device for central air-conditioning technology data output |
| CN105910220B (en) * | 2016-01-26 | 2019-07-02 | 特灵空调系统(中国)有限公司 | VRF divided gauging method |
| CN105910220A (en) * | 2016-01-26 | 2016-08-31 | 特灵空调系统(中国)有限公司 | VRF household metering method |
| CN106196434A (en) * | 2016-07-04 | 2016-12-07 | 珠海格力电器股份有限公司 | A kind of indoor and outdoor machine type selecting check method and device |
| CN106530046A (en) * | 2016-10-31 | 2017-03-22 | 广东美的制冷设备有限公司 | Method and apparatus for matching air conditioners based on use scenes |
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| CN107121300A (en) * | 2017-04-21 | 2017-09-01 | 珠海格力电器股份有限公司 | A kind of equipment optimization system of selection, device and equipment |
| CN107166634A (en) * | 2017-04-25 | 2017-09-15 | 青岛海尔空调器有限总公司 | A kind of air conditioner and its control method |
| CN108241908A (en) * | 2018-01-17 | 2018-07-03 | 深圳市云科设计咨询服务有限公司 | A kind of new method of multi-online air-conditioning system outdoor unit type selecting |
| CN108241908B (en) * | 2018-01-17 | 2021-09-24 | 深圳市云科设计咨询服务有限公司 | New method for model selection of outdoor unit of multi-split air conditioning system |
| CN110006096A (en) * | 2019-04-15 | 2019-07-12 | 廊坊新奥泛能网络科技服务有限公司 | Choosing method, device and the electronic equipment of heating machine set |
| CN110006096B (en) * | 2019-04-15 | 2021-09-10 | 廊坊新奥泛能网络科技服务有限公司 | Heating unit selection method and device and electronic equipment |
| CN110263363A (en) * | 2019-04-25 | 2019-09-20 | 珠海格力电器股份有限公司 | Equipment is piped selection method and device |
| CN110135639A (en) * | 2019-05-14 | 2019-08-16 | 珠海格力电器股份有限公司 | Multi-connected machine selection method, device, computer equipment and storage medium |
| CN110175778A (en) * | 2019-05-27 | 2019-08-27 | 珠海格力电器股份有限公司 | Unit efficiency planning system |
| CN111780328A (en) * | 2020-06-24 | 2020-10-16 | 珠海格力电器股份有限公司 | Air supply control method and device and air conditioning equipment |
| CN111780328B (en) * | 2020-06-24 | 2021-12-14 | 珠海格力电器股份有限公司 | Air supply control method and device and air conditioning equipment |
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