CN110006197B - Selection method and device of refrigerating unit and electronic equipment - Google Patents

Selection method and device of refrigerating unit and electronic equipment Download PDF

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Publication number
CN110006197B
CN110006197B CN201910301288.9A CN201910301288A CN110006197B CN 110006197 B CN110006197 B CN 110006197B CN 201910301288 A CN201910301288 A CN 201910301288A CN 110006197 B CN110006197 B CN 110006197B
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type
refrigerating
refrigerating unit
unit
capacity
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CN110006197A (en
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孙振华
王珏
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Langfang Enn Panergy Network Technology Service Co ltd
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Langfang Enn Panergy Network Technology Service Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/19—Calculation of parameters

Abstract

The invention provides a method and a device for selecting a refrigerating unit and electronic equipment, wherein the method comprises the following steps: acquiring the required refrigerating capacity input by a user; acquiring a target interval where the required refrigerating capacity is located, and determining the installation parameters of the refrigerating unit according to the target interval; wherein the installation parameters include the type and number of the refrigeration units and the gears of the refrigeration units. According to the method, the target interval where the required refrigerating capacity is located can be directly obtained through an automatic algorithm, the installation parameters of the refrigerating unit in the target interval are further determined, the refrigerating unit is selected without being determined by using traditional calculation, experience and the like under the line of service personnel, and the problems of low accuracy, long time consumption, low applicability of a universal network platform and low popularization performance in the existing refrigerating equipment selecting method are solved.

Description

Selection method and device of refrigerating unit and electronic equipment
Technical Field
The invention relates to the technical field of refrigeration, in particular to a method and a device for selecting a refrigerating unit and electronic equipment.
Background
With the rapid development of the energy internet industry in China, the way of supplying energy by using a universal energy solution such as a distributed energy station becomes more and more important. By adopting the functions of the universal energy solution such as the distributed energy station, various indexes of the universal energy solution need to be calculated and measured. At present, a plurality of universal energy solutions such as a universal energy network platform can automatically make an energy supply scheme according to the load condition. Therefore, when a universal solution is proposed, each platform needs to determine the type of the installation of the refrigeration unit and the size of the installation in a public building project so as to make a standard comparison scheme.
In the related art, the type of an installation of a refrigerating unit and the size of the installation in a public building project are determined, and the determination is mainly obtained by a service person in an offline mode through traditional calculation, experience and the like.
However, the related art has the following disadvantages: in the prior art, the selection method can be determined only by offline traditional calculation, experience and other modes of service personnel, so that the selection method of the refrigerating unit is low in accuracy, consumes long time, and is low in applicability and generalizability of the universal network platform.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, a first objective of the present invention is to provide a method for selecting a refrigeration unit, so as to solve the problems of low accuracy, long time consumption, and low applicability and generalization of a smart network platform in the existing method for selecting a refrigeration unit.
A second object of the present invention is to provide a selection device for a refrigeration unit.
A third object of the invention is to propose an electronic device.
A fourth object of the invention is to propose a computer-readable storage medium.
In order to achieve the above object, a first embodiment of the present invention provides a method for selecting a refrigeration unit, including the following steps: acquiring the required refrigerating capacity input by a user; acquiring a target interval where the required refrigerating capacity is located, and determining the installation parameters of the refrigerating unit according to the target interval; wherein the installation parameters include the type and number of the refrigeration units and the gears of the refrigeration units.
According to an embodiment of the present invention, before the obtaining of the target interval where the required cooling capacity is located, the method further includes: and inquiring a preset type selection table of the refrigerating unit, acquiring the maximum refrigerating capacity of the first type of refrigerating unit from the type selection table, and generating a plurality of intervals according to the maximum refrigerating capacity of the first type of refrigerating unit.
According to an embodiment of the present invention, the obtaining a target interval where the required cooling capacity is located, and determining an installation parameter of the refrigeration unit according to the target interval, includes: if the required refrigerating capacity is in a first target interval, determining that the refrigerating unit is a first type of refrigerating unit; wherein the number of the first type of refrigerating unit is 1; inquiring in the preset refrigeration unit type selection table to determine a target gear of the first type of refrigeration unit; the first refrigerating capacity provided by the target gear is equal to the gear of the required refrigerating capacity, or the provided first refrigerating capacity is larger than the required refrigerating capacity and has the smallest difference with the required refrigerating capacity; the upper limit value of the first target interval is the maximum refrigerating capacity of the first type of refrigerating unit.
According to an embodiment of the present invention, the obtaining a target interval where the required cooling capacity is located, and determining an installation parameter of the refrigeration unit according to the target interval, includes: if the required refrigerating capacity is in a second target interval, determining that the refrigerating unit is a first type of refrigerating unit; wherein the number of the first type of refrigerating unit is 2; the lower limit value of the second target interval is the maximum refrigerating capacity of the first type of refrigerating unit, and the upper limit value of the second target interval is 2 times of the maximum refrigerating capacity of the first type of refrigerating unit; determining a second refrigerating capacity required to be provided by the first type of refrigerating unit according to the required refrigerating capacity and the required quantity; according to the second refrigerating capacity required to be provided by the first type of refrigerating unit, inquiring in the preset refrigerating unit type selection table, and determining a target gear of the first type of refrigerating unit; and the first refrigerating capacity provided by the target gear is equal to the gear of the second refrigerating capacity, or the provided first refrigerating capacity is larger than the second refrigerating capacity and has the smallest difference with the second refrigerating capacity.
According to an embodiment of the present invention, the obtaining a target interval where the required cooling capacity is located, and determining an installation parameter of the refrigeration unit according to the target interval, includes: if the required refrigerating capacity is in a third target interval, determining that the refrigerating unit comprises a first type refrigerating unit and a second type refrigerating unit; wherein the number of the first type of refrigerating unit is 1; the lower limit value of the third target interval is 2 times of the maximum refrigerating capacity of the first type of refrigerating unit, and the upper limit value of the third target interval is a preset refrigerating capacity limit value; and traversing the preset refrigerating unit type selection table according to the required refrigerating capacity under a preset first constraint condition to obtain the target gears of the first type of refrigerating unit and the second type of refrigerating unit and the number of the second type of refrigerating unit.
According to an embodiment of the present invention, traversing the preset refrigerator group model selection table according to the required refrigeration capacity under a preset constraint condition to obtain the target gear of the first type of refrigerator group and the target gear of the second type of refrigerator group, and the number of the second type of refrigerator groups includes: traversing from a first preset initial number of the second type of refrigerating unit, selecting one current gear of the second type of refrigerating unit one by one according to the sequence of the gears of the second type of refrigerating unit from small to large under the current number, and screening out a candidate gear of the first type of refrigerating unit from the refrigerating unit selection table according to a first sub-condition in the first constraint condition and the current gear of the second type of refrigerating unit; and combining the candidate gears of the first type of refrigerating unit with the current gear of the second type of refrigerating unit in a descending order, stopping traversing if the refrigerating capacity provided after combination meets a second sub-condition in the first constraint condition, obtaining the number of the second type of refrigerating unit, and taking the current gear when the first type of refrigerating unit and the second type of refrigerating unit are combined as the target gear.
According to an embodiment of the present invention, the obtaining a target interval where the required cooling capacity is located, and determining an installation parameter of the refrigeration unit according to the target interval, includes: if the required refrigerating capacity is in a fourth target interval, determining that the refrigerating unit is a second type refrigerating unit; the lower limit value of the fourth target interval is a preset refrigerating capacity limit value; and traversing the model selection table of the refrigerating unit according to the required refrigerating capacity under a preset second constraint condition to obtain the target gear of the second type of refrigerating unit and the number of the second type of refrigerating unit.
According to an embodiment of the present invention, traversing the model selection table of the refrigeration unit according to the required refrigeration capacity under a preset second constraint condition to obtain a target gear of the second type of refrigeration unit and the number of the second type of refrigeration unit includes: acquiring a recommended gear of the second type of refrigerating unit from the refrigerating unit type selection table; and traversing from a preset second initial quantity of the second type of refrigerating unit, selecting one gear from the recommended gears as a current recommended gear according to the sequence from small to large of the recommended gears under the current quantity, and stopping traversing if the product of the current recommended gear and the current quantity meets a second constraint condition to obtain a target gear and the quantity of the second type of refrigerating unit.
According to an embodiment of the present invention, further comprising: and if the current number is updated to a preset number, and the target gear of the second type of refrigerating unit meeting the second constraint condition is not obtained in the recommended gear, traversing from the second initial number in the remaining gears of the second type of refrigerating unit again to obtain the target gear and the number of the second type of refrigerating unit meeting the second constraint condition in the remaining gears.
The embodiment of the invention provides a method for selecting a refrigerating unit, which can obtain a target interval where required refrigerating capacity is located by obtaining the required refrigerating capacity input by a user, determine installation parameters of the refrigerating unit based on the target interval where the required refrigerating capacity is located, and further realize the selection of the refrigerating unit.
In order to achieve the above object, a second embodiment of the present invention provides a selecting device for a refrigeration unit, including: the first acquisition module is used for acquiring the required refrigerating capacity input by a user; the second acquisition module is used for acquiring a target interval where the required refrigerating capacity is located and determining the installation parameters of the refrigerating unit according to the target interval; wherein the installation parameters include the type and number of the refrigeration units and the gears of the refrigeration units.
According to one embodiment of the invention, a module is generated; the generating module is used for inquiring a preset refrigeration unit type selection table before acquiring the target interval where the required refrigeration capacity is located, acquiring the maximum refrigeration capacity of the first type of refrigeration unit from the preset refrigeration unit type selection table, and generating a plurality of intervals according to the maximum refrigeration capacity of the first type of refrigeration unit.
According to an embodiment of the present invention, the second obtaining module is further configured to: if the required refrigerating capacity is in a first target interval, determining that the refrigerating unit is a first type of refrigerating unit; wherein the number of the first type of refrigerating unit is 1; inquiring in the preset refrigeration unit type selection table to determine a target gear of the first type of refrigeration unit; the first refrigerating capacity provided by the target gear is equal to the gear of the required refrigerating capacity, or the provided first refrigerating capacity is larger than the required refrigerating capacity and has the smallest difference with the required refrigerating capacity; the upper limit value of the first target interval is the maximum refrigerating capacity of the first type of refrigerating unit.
According to an embodiment of the present invention, the second obtaining module is further configured to: if the required refrigerating capacity is in a second target interval, determining that the refrigerating unit is a first type of refrigerating unit; wherein the number of the first type of refrigerating unit is 2; the lower limit value of the second target interval is the maximum refrigerating capacity of the first type of refrigerating unit, and the upper limit value of the second target interval is 2 times of the maximum refrigerating capacity of the first type of refrigerating unit; determining a second refrigerating capacity required to be provided by the first type of refrigerating unit according to the required refrigerating capacity and the required quantity; according to the second refrigerating capacity required to be provided by the first type of refrigerating unit, inquiring in the preset refrigerating unit type selection table, and determining a target gear of the first type of refrigerating unit; and the first refrigerating capacity provided by the target gear is equal to the gear of the second refrigerating capacity, or the provided first refrigerating capacity is larger than the second refrigerating capacity and has the smallest difference with the second refrigerating capacity.
According to an embodiment of the present invention, the second obtaining module is further configured to: if the required refrigerating capacity is in a third target interval, determining that the refrigerating unit comprises a first type refrigerating unit and a second type refrigerating unit; wherein the number of the first type of refrigerating unit is 1; the lower limit value of the third target interval is 2 times of the maximum refrigerating capacity of the first type of refrigerating unit, and the upper limit value of the third target interval is a preset refrigerating capacity limit value; and traversing the preset refrigerating unit type selection table according to the required refrigerating capacity under a preset first constraint condition to obtain the target gears of the first type of refrigerating unit and the second type of refrigerating unit and the number of the second type of refrigerating unit.
According to an embodiment of the present invention, the second obtaining module is further configured to: traversing from a first preset initial number of the second type of refrigerating unit, selecting one current gear of the second type of refrigerating unit one by one according to the gear of the second type of refrigerating unit from small to large under the current number, and screening out a candidate gear of the first type of refrigerating unit from the refrigerating unit selection table according to a first sub-condition in the first constraint condition and the current gear of the second type of refrigerating unit; and combining the candidate gears of the first type of refrigerating unit with the current gear of the second type of refrigerating unit in a descending order, stopping traversing if the refrigerating capacity provided after combination meets a second sub-condition in the first constraint condition, obtaining the number of the second type of refrigerating unit, and taking the current gear when the first type of refrigerating unit and the second type of refrigerating unit are combined as the target gear.
According to an embodiment of the present invention, the second obtaining module is further configured to: if the required refrigerating capacity is in a fourth target interval, determining that the refrigerating unit is a second type refrigerating unit; the lower limit value of the fourth target interval is a preset refrigerating capacity limit value; and traversing the model selection table of the refrigerating unit according to the required refrigerating capacity under a preset second constraint condition to obtain the target gear of the second type of refrigerating unit and the number of the second type of refrigerating unit.
According to an embodiment of the present invention, the second obtaining module is further configured to: acquiring a recommended gear of the second type of refrigerating unit from the refrigerating unit type selection table; and traversing from a preset second initial quantity of the second type of refrigerating unit, selecting a current recommended gear from the recommended gears according to the sequence from small to large of the recommended gears under the current quantity, and stopping traversing if the product of the current recommended gear and the current quantity meets the second constraint condition to obtain the target gear and the quantity of the second type of refrigerating unit.
According to an embodiment of the present invention, the second obtaining module is further configured to: and if the traversed current number reaches a preset number, the target gear of the second type of refrigerating unit meeting the second constraint condition is not obtained in the recommended gear, and traversing is carried out again from the second initial number in the rest gears of the second type of refrigerating unit so as to obtain the target gear and the number of the second type of refrigerating unit meeting the second constraint condition in the rest gears.
The embodiment of the second aspect of the invention provides a selection device of a refrigerating unit, which can obtain a target interval where required refrigerating capacity is located by obtaining the required refrigerating capacity input by a user, then determine the installation parameters of the refrigerating unit based on the target interval where the required refrigerating capacity is located, and further realize the selection of the refrigerating unit.
To achieve the above object, a third embodiment of the present invention provides an electronic device, including a memory, a processor; the processor reads the executable program codes stored in the memory to run programs corresponding to the executable program codes, so as to implement the method for selecting the refrigeration unit provided by the embodiment of the first aspect of the invention.
To achieve the above object, a fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program is executed by a processor to implement the method for selecting a refrigeration unit according to the first aspect of the present invention.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flow chart illustrating a method of selecting a refrigeration unit according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating an alternative method of selecting a refrigeration unit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a selection device of a refrigeration unit according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a refrigeration unit according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A method and apparatus for selecting a refrigeration unit according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a flowchart of a selecting method of a refrigeration unit according to an embodiment of the present invention. As shown in fig. 1, the method for selecting a refrigeration unit according to the embodiment of the present invention includes the following steps:
s101: and acquiring the required refrigerating capacity input by the user.
In the embodiment of the invention, the user can directly or remotely input the required refrigerating capacity according to the self requirement. Specifically, the user may directly input the required refrigeration capacity through the input interface, or issue the required refrigeration capacity in a voice manner or in a remote manner, and may perform caching after obtaining the required refrigeration capacity.
Furthermore, the installation parameters of the refrigerating unit are determined according to the required refrigerating capacity input by the user, so that quick and accurate selection scheme service of the refrigerating unit is provided.
The refrigerating units may be screw type refrigerating units, centrifugal type refrigerating units, lithium bromide absorption type refrigerating units, and the like.
S102: acquiring a target interval where the required refrigerating capacity is located, and determining the installation parameters of the refrigerating unit according to the target interval; the installed parameters comprise the type and the number of the refrigerating units and the gears of the refrigerating units.
Aiming at different required refrigerating capacities, target intervals are different, and installation parameter selection schemes of the refrigerating unit are different. Therefore, in the embodiment of the present invention, the installation parameters of the refrigeration unit need to be obtained according to the target interval where the required refrigeration capacity is located, as shown in fig. 2, the method specifically includes the following steps:
s1021: a plurality of intervals generated according to the maximum refrigerating capacity of the first refrigerating unit are obtained.
As a possible implementation manner, before the target interval where the required cooling capacity is located is obtained, a mapping relationship table between different types of refrigeration unit and the cooling capacity provided by the refrigeration unit, that is, a refrigeration unit type selection table, may be pre-established, as shown in table 1:
TABLE 1
Figure BDA0002028311860000071
Wherein, the first type of refrigerating unit can be a screw type refrigerating unit, the second type of refrigerating unit can be a centrifugal type refrigerating unit, ● is a recommended gear, and O is an available gear.
As shown in table 1, the amount of cooling provided by the refrigeration unit can be characterized by a ton or an installed capacity, for example, the installed capacity corresponding to 100 tons is 2461.9KW, and one of the tons can be selected to characterize the amount of cooling of the refrigeration unit.
Specifically, after the maximum cooling capacity of the first type of refrigerating unit is obtained, a plurality of intervals may be generated according to the maximum cooling capacity of the first type of refrigerating unit, and the intervals may be labeled as different target intervals one by one. When a plurality of intervals are generated according to the maximum refrigerating capacity of the first type of refrigerating unit, specific interval ranges can be preset according to actual conditions. For example, multiple intervals can be generated according to the maximum refrigerating capacity of 2637.75KW of the first type of refrigerating unit, and the interval is marked as a first target interval by 0-2637.75 KW; 2637.75 KW-5275.5 KW marks the interval as a second target interval; 5275.5 KW-12661.2 KW marks the interval as a third target interval, wherein 12661.2KW is the preset limit value of the refrigerating capacity of the first type of refrigerating unit; greater than 12661.2KW marks this interval as the fourth target interval.
S1022: and comparing the required refrigerating capacity with the plurality of intervals to obtain a target interval where the required refrigerating capacity is located.
Specifically, the required cooling capacity input by the user is compared with a plurality of intervals, and then the target interval in which the required cooling capacity falls is determined.
For example, if the required cooling capacity is less than or equal to the maximum cooling capacity (2637.75KW) of the first type of refrigeration unit, then the required cooling capacity is marked as being in a first target interval; if the required refrigerating capacity is larger than the maximum refrigerating capacity of the first type of refrigerating unit and is smaller than 2 times of the maximum refrigerating capacity of the first type of refrigerating unit, marking the interval as a second target interval; if the required refrigerating capacity is more than 2 times of the maximum refrigerating capacity of the first type of refrigerating unit and less than the preset refrigerating capacity limit value of the first type of refrigerating unit, marking the interval as a third target interval; and if the required refrigerating capacity is larger than the preset refrigerating capacity limit value of the first type of refrigerating unit, marking the interval as a fourth target interval.
S1023: and determining the installation parameters of the refrigerating unit according to the target interval.
That is to say, after the target interval where the required refrigerating capacity is located is obtained, different installation parameters of the refrigerating unit in different target intervals can be obtained by circularly traversing the refrigerating unit model selection table. Wherein, installation parameters include: the type and number of the refrigeration units and the gears of the refrigeration units.
Optionally, if the required refrigerating capacity is in the first target interval, determining that the installed parameters of the refrigerating unit conform to the model selection scheme of the first target interval, and further obtaining the installed parameters of the refrigerating unit. The parameters of the refrigerator assembling machine under the condition of the required refrigerating capacity comprise: the type of the refrigerating unit is a first type of refrigerating unit; the number of the first type of refrigerating units is 1; the gear required by the refrigerating unit, namely the target gear, can be obtained by inquiring in a type selection table of the refrigerating unit. The target gear of the refrigerating unit can provide the refrigerating capacity, namely the first refrigerating capacity, and the required refrigerating capacity needs to be met. That is to say, the first cooling capacity provided by the target gear should be equal to the gear of the required cooling capacity, or the first cooling capacity provided should be greater than the required cooling capacity and have the smallest difference with the required cooling capacity.
For example, when the required cooling capacity input by the user is 1800KW, as can be seen from table 1, the required cooling capacity is smaller than the recommended installed maximum cooling capacity 2637.75KW of the screw-type refrigeration unit, and then the target interval in which the required cooling capacity is located may be determined to be the first target interval.
Further, according to the installation parameters of the first target interval, the installation parameters of the refrigerating unit matched with the required refrigerating capacity can be determined to be 1 screw type refrigerating unit, and the gear of the refrigerating unit is determined to be 1934.35 KW. And determining the gear of the matched refrigerating unit, and selecting the first-gear refrigerating unit with the refrigerating capacity more than or equal to the latest required refrigerating capacity according to the refrigeration equipment type selection table.
It should be noted that, as shown in table 1, the cooling capacity can be represented by power KW or by cold ton RT. For example, when the required cooling capacity is 510RT, as can be seen from table 1, the required cooling capacity is less than the recommended installed maximum cooling capacity 750RT of the screw type refrigeration unit, and then the target interval in which the required cooling capacity is located may be determined to be the first target interval. Further, according to the installation parameters of the first target interval, the installation parameters of the refrigerating unit matched with the required refrigerating capacity can be determined to be 1 screw type refrigerating unit, and the gear of the refrigerating unit is determined to be 550 RT.
Optionally, if the required refrigerating capacity is in a second target interval, determining that the installed parameters of the refrigerating unit conform to the model selection scheme of the second target interval, and further obtaining the installed parameters of the refrigerating unit. The parameters of the refrigerator assembling machine under the condition of the required refrigerating capacity comprise: the type of the refrigerating unit is a first type of refrigerating unit; the number of the first type of refrigerating units is 2; the gear of the refrigerating unit is inquired through a refrigerating unit model selection table. The target gear of the refrigerating unit can provide the refrigerating capacity, namely the first refrigerating capacity, and the required refrigerating capacity needs to be met. That is to say, the first cooling capacity provided by the target gear should be equal to the gear of the second cooling capacity, or the first cooling capacity provided should be greater than the second cooling capacity and the gear with the minimum difference with the second cooling capacity. The second refrigerating capacity is the refrigerating capacity required by the first type of refrigerating unit.
For example, when the refrigeration demand input by the user is 3000KW, as can be seen from table 1, the required refrigeration capacity is greater than 2637.75KW, which is the recommended maximum installed refrigeration capacity of the screw-type refrigeration unit, and is smaller than 2 times, that is, 5275.5KW, of the recommended maximum installed refrigeration capacity of the screw-type refrigeration unit, and then it can be determined that the target interval where the required refrigeration capacity is located is the second target interval.
Further, according to the installation parameters of the first target interval, the installation parameters of the refrigerating unit matched with the required refrigerating capacity can be determined to be 2 screw type refrigerating units, and the gear of a single refrigerating unit is determined to be 1582.65 KW. And determining the gear of the matched refrigerating unit, and selecting the first-gear refrigerating unit with the refrigerating capacity more than or equal to the latest required refrigerating capacity according to the refrigeration equipment type selection table.
It should be noted that the cooling capacity can be represented by power KW or by cold ton RT. For example, when the required cooling capacity is 840RT, as can be seen from table 1, the required cooling capacity is greater than the recommended installed maximum cooling capacity of the screw type refrigeration unit, that is, 750RT, and is less than 2 times 1500RT of the recommended installed maximum cooling capacity of the screw type refrigeration unit, and then the target interval in which the required cooling capacity is located may be determined to be the second target interval. Further, according to the installation parameters of the second target interval, the installation parameters of the refrigerating unit matched with the required refrigerating capacity can be determined to be 2 screw type refrigerating units, and the gear of a single refrigerating unit is determined to be 450 RT.
Optionally, if the required refrigerating capacity is in a third target interval, determining that the installed parameters of the refrigerating unit conform to the model selection scheme of the third target interval, and further obtaining the installed parameters of the refrigerating unit. The parameters of the refrigerator assembling machine under the condition of the required refrigerating capacity comprise: the types of the refrigerating units comprise a first type refrigerating unit and a second type refrigerating unit; the number of the first type of refrigerating unit is 1.
Further, in order to obtain the gears of the two types of refrigerating units and the number of the second type of refrigerating units, a preset refrigerating unit model selection table can be traversed according to the required refrigerating capacity under a preset first constraint condition to obtain the target gears of the first type of refrigerating unit and the second type of refrigerating unit and the number of the second type of refrigerating unit.
Specifically, the first constraint includes a first sub-condition and a second sub-condition, where the first sub-condition is as follows:
0.5Q2≤Q1≤0.7Q2alternatively, 1.43Q1≤Q2≤2Q1
The second sub-condition is as follows:
required refrigerating capacity is less than or equal to Q1+n*Q2
Wherein Q is1Is the refrigerating capacity, Q, of the first type of refrigerating unit2The refrigerating capacity of the second type of refrigerating unit, and n is the number of the second type of refrigerating units.
And further, traversing from the first preset initial number of the second type of refrigerating units, selecting the current gears of one second type of refrigerating unit one by one according to the sequence from small to large of the gears of the second type of refrigerating units under the current number, and screening out the candidate gears of the first type of refrigerating unit from the refrigerating unit selection table according to the first sub-condition in the first constraint condition and the current gear of the second type of refrigerating unit.
And further, combining the candidate gears of the first type of refrigerating unit with the current gear of the second type of refrigerating unit in a descending order, if the refrigerating capacity provided after combination meets a second sub-condition in the first constraint condition, stopping traversing to obtain the number of the second type of refrigerating unit, and taking the current gear when the first type of refrigerating unit and the second type of refrigerating unit are combined as a target gear.
When n is a positive integer, the first preset initial number is 1, and Q is calculated from n being equal to 1 during the traversal1And Q2Substituting the calculation (the selected set is the recommended unit ●) from small to large until the inequality is met, and finishing the calculation; if Q1And Q2And if the values in the selected set can not satisfy the inequality, re-assigning n to n +1, and repeating the calculation process.
For example, when the required cooling capacity is 10000KW, as can be seen from table 1, the required cooling capacity is greater than 2 times 5275.5KW of the recommended maximum installed cooling capacity of the screw type refrigerator group and is smaller than the upper limit value of the cooling capacity of the screw type refrigerator group, and then the target interval in which the required cooling capacity is located may be determined to be the third target interval. The upper limit value of the refrigerating capacity of the screw type refrigerating unit can be preset according to the actual situation. For example, the upper limit value of the preset screw type refrigerating unit refrigerating capacity is 12661.2 KW.
Further, according to the installation parameters of the third target interval, the installation parameters of the refrigerating units matched with the required refrigerating capacity can be determined to be 1 screw type refrigerating unit and n centrifugal refrigerating units.
Further, according to the required refrigerating capacity, traversing the refrigerating equipment model selection table from n-1 of the centrifugal refrigerating unit, under each value of n, selecting the current gear of one centrifugal refrigerating unit one by one according to the sequence of the gear of the centrifugal refrigerating unit from 1055.1 to 10551, and then selecting the current gear of one centrifugal refrigerating unit one by one according to 0.5Q2≤Q1≤0.7Q2The first sub-condition can determine candidate gears of the screw type refrigerating unit. For example, when the current gear of the selected centrifugal refrigerating unit is 1055.1, 0.5 x 1055.1 and 0.7 x 1055.1, the candidate gear of the screw refrigerating unit is obtained to be in the range of 527.55-738.57. Further, according to the sequence of the gear positions of the centrifugal refrigerating unit from 527.55 to 738.57, and 10000 is less than or equal to Q1+n*Q2The second sub-condition can determine the number of the centrifugal refrigerating units and take the current gear when the screw refrigerating units and the centrifugal refrigerating units are combined as the target gear. And then can know according to the model selection table of the refrigerating unit, when the refrigeration demand input by the user is 10000KW, the parameters of the refrigerating machine assembly machine can be determined as follows: the gear is 580.305 screw refrigerating unit 1, and the gear is 5275.5 centrifugal refrigerating unit 2.
It should be noted that, if the candidate gears 527.55-738.57 of the centrifugal chiller unit are combined with the current gear of the centrifugal chiller unit in the order from small to large, and the cooling capacity provided after combination is less than 10000KW, the traversing process is executed again according to the sequence from 1230.95 to 10551 of the gear of the centrifugal chiller unit under each value of n. When the refrigerating capacity provided after combination is still less than 10000KW, traversing the refrigerating equipment model selection table from n +1 of the centrifugal refrigerating unit, and executing the traversing process again until the provided refrigerating capacity meets the requirement of 10000 KW.
Alternatively, the refrigeration capacity can be characterized by the power KW, but also by the cold ton RT.
Optionally, if the required refrigerating capacity is in a fourth target interval, determining that the installation parameters of the refrigerating unit conform to a fourth target interval model selection scheme, and further acquiring the installation parameters of the refrigerating unit through the acquiring device. The parameters of the refrigerator assembling machine under the condition of the required refrigerating capacity comprise: the type of the refrigeration unit is a second type of refrigeration unit. And traversing a preset refrigeration unit type selection table according to the required refrigeration capacity under a preset second constraint condition to obtain the target gear of the second type of refrigeration unit and the number of the second type of refrigeration unit.
Further, in order to obtain the gear and the number of the second type of refrigerating unit, the preset refrigerating unit type selection table can be traversed according to the required refrigerating capacity under the preset second constraint condition to obtain the target gear and the number of the second type of refrigerating unit.
Specifically, the second constraint is as follows:
required refrigerating capacity≤n*Q2Refrigerating capacity no more than 1.1%
N is a positive integer. During the course of the pass, n is given an initial value of 4 and begins to calculate, Q2Substituting the calculation (the selected set is the recommended unit ●) from small to large until the inequality is met, and finishing the calculation; if Q2And if the values in the selected set can not satisfy the inequality, re-assigning n to n +1, and repeating the calculation process. When n is 6 and the inequality is not satisfied, Q2The selected set is changed to acceptable set o. At this time, n is reset to 4, Q2Substituting the calculation from small to large until an inequality is met, and finishing the calculation. If the inequality is not satisfied, the value n is assigned to n +1 again, and the calculation process is repeated.
And further, traversing from a preset second initial number of the second type of refrigerating unit, selecting one gear from the recommended gears as a current recommended gear according to the sequence from small to large of the recommended gears under the current number, and stopping traversing if the product of the current recommended gear and the current number meets a second constraint condition to obtain a target gear and the number of the second type of refrigerating unit.
It should be noted that, if the current number is updated to the preset number, and the target gear of the second type of refrigeration unit meeting the second constraint condition is not obtained yet in the recommended gear, in the remaining gears of the second type of refrigeration unit, traversal is performed again from the second initial number, so as to obtain the target gear and the number of the second type of refrigeration unit meeting the second constraint condition in the remaining gears.
For example, when the required cooling capacity is 15000KW, as can be seen from table 1, the target interval in which the required cooling capacity is located may be determined to be the fourth target interval if the required cooling capacity is greater than the upper limit of the cooling capacity of the screw-type refrigerator group. The upper limit value of the refrigerating capacity of the screw type refrigerating unit can be preset according to the actual situation. For example, the upper limit value of the preset screw type refrigerating unit refrigerating capacity is 12661.2 KW.
Furthermore, according to the installation parameters of the fourth target interval, the installation parameters of the refrigerating unit matched with the required refrigerating capacity can be determined to be n centrifugal refrigerating units, and the gear of a single refrigerating unit can be determined. The number of the centrifugal refrigerating units and the gear are determined, and the refrigeration equipment model selection table is traversed according to the required refrigeration capacity.
Specifically, traversal is started from a preset second initial number n of the centrifugal refrigerating units to 4, under the value of each n, according to the sequence from 1230.95 to 5275.5 of the recommended gears of the centrifugal refrigerating units, the gears of one centrifugal refrigerating unit are selected one by one to serve as the current recommended gear, and then n Q is not less than 150002≦ 1.1 × 15000 this second constraint, the target gear and number of centrifugal chiller units may be determined. For example, when the current recommended gear of the selected centrifugal refrigerating unit is 1230.95, 15000 is less than or equal to 4 × Q2Less than or equal to 1.1 x 15000 to obtain 3750 less than or equal to Q2Is not more than 4125. Further, according to the model selection table of the refrigerating unit, when the refrigerating demand input by the user is 15000KW, the parameters of the refrigerating machine assembly machine can be determined as follows: and 4 centrifugal refrigerating units with 3868.7 gears.
If the current number is updated to the preset number n equal to 6, and the target gear of the centrifugal chiller unit meeting the second constraint condition is not obtained yet in the recommended gear, in the remaining available gears of the centrifugal chiller unit, the traversal is performed again from the second initial number n equal to 4, and the traversal process is re-executed to obtain the target gear and the number of the centrifugal chiller unit meeting the second constraint condition in the remaining available gears. And when the second constraint condition is not met in the remaining available gears, traversing the refrigeration equipment model selection table from n +1 of the centrifugal refrigeration unit, and executing the traversing process again until the second constraint condition is met.
Alternatively, the refrigeration capacity can be characterized by the power KW, but also by the cold ton RT.
In order to realize the embodiment, the invention further provides a selection device of the refrigerating unit.
Fig. 3 is a schematic structural diagram of a selection device of a refrigeration unit according to an embodiment of the invention. As shown in fig. 3, the selecting device 100 of the refrigeration unit according to the embodiment of the present invention includes: a first obtaining module 11 and a second obtaining module 12.
The first obtaining module 11 is configured to obtain a required cooling capacity input by a user; the second obtaining module 12 is configured to obtain a target interval where the required cooling capacity is located, and determine an installation parameter of the refrigeration unit according to the target interval; the installed parameters comprise the type and the number of the refrigerating units and the gears of the refrigerating units.
Further, still include: a generation module 13; the generating module is used for inquiring a preset refrigerating unit type selection table before acquiring a target interval where the required refrigerating capacity is located, acquiring the maximum refrigerating capacity of the first type of refrigerating unit from the preset refrigerating unit type selection table, and generating a plurality of intervals according to the maximum refrigerating capacity of the first type of refrigerating unit.
Further, the second obtaining module 12 is further configured to: if the required refrigerating capacity is in a first target interval, determining that the refrigerating unit is a first type of refrigerating unit; wherein the number of the first type of refrigerating units is 1; inquiring in a preset refrigeration unit type selection table, and determining a target gear of a first type of refrigeration unit; the first refrigerating capacity provided by the target gear is equal to the gear of the required refrigerating capacity, or the provided first refrigerating capacity is larger than the required refrigerating capacity and has the smallest difference with the required refrigerating capacity; the upper limit value of the first target interval is the maximum refrigerating capacity of the first type of refrigerating unit.
Further, the second obtaining module 12 is further configured to: if the required refrigerating capacity is in a second target interval, determining the refrigerating unit as a first type of refrigerating unit; wherein the number of the first type of refrigerating units is 2; the lower limit value of the second target interval is the maximum refrigerating capacity of the first type of refrigerating unit, and the upper limit value of the second target interval is 2 times of the maximum refrigerating capacity of the first type of refrigerating unit; determining a second refrigerating capacity required to be provided by the first type of refrigerating unit according to the required refrigerating capacity and the required quantity; according to the second refrigerating capacity required to be provided by the first type of refrigerating unit, inquiring in a preset refrigerating unit type selection table, and determining a target gear of the first type of refrigerating unit; the first refrigerating capacity provided by the target gear is equal to the gear of the second refrigerating capacity, or the provided first refrigerating capacity is larger than the second refrigerating capacity and has the smallest difference with the second refrigerating capacity.
Further, the second obtaining module 12 is further configured to: if the required refrigerating capacity is in a third target interval, determining that the refrigerating units comprise a first type refrigerating unit and a second type refrigerating unit; wherein the number of the first type of refrigerating units is 1; the lower limit value of the third target interval is 2 times of the maximum refrigerating capacity of the first type of refrigerating unit, and the upper limit value is a preset refrigerating capacity limit value; and under a preset first constraint condition, traversing a preset refrigeration unit type selection table according to the required refrigeration capacity to obtain the target gears of the first type of refrigeration unit and the second type of refrigeration unit and the number of the second type of refrigeration units.
Further, the second obtaining module 12 is further configured to: traversing from a first preset initial number of the second type of refrigerating unit, selecting one current gear of the second type of refrigerating unit one by one according to the gear of the second type of refrigerating unit from small to large under the current number, and screening out candidate gears of the first type of refrigerating unit from a refrigerating unit type selection table according to a first sub-condition in a first constraint condition and the current gear of the second type of refrigerating unit; and combining the candidate gears of the first type of refrigerating unit with the current gear of the second type of refrigerating unit in a descending order, stopping traversing if the refrigerating capacity provided after combination meets a second sub-condition in the first constraint condition, obtaining the number of the second type of refrigerating unit, and taking the current gear when the first type of refrigerating unit and the second type of refrigerating unit are combined as a target gear.
Further, the second obtaining module 12 is further configured to: if the required refrigerating capacity is in a fourth target interval, determining that the refrigerating unit is a second type of refrigerating unit; the lower limit value of the fourth target interval is a preset refrigerating capacity limit value; and traversing the model selection table of the refrigerating unit according to the required refrigerating capacity under the preset second constraint condition to obtain the target gear of the second type of refrigerating unit and the number of the second type of refrigerating unit.
Further, the second obtaining module 12 is further configured to: acquiring a recommended gear of a second type of refrigerating unit from a refrigerating unit type selection table; traversing from a preset second initial quantity of the second type of refrigerating unit, selecting a current recommended gear from the recommended gears according to the sequence from small to large of the recommended gears under the current quantity, and stopping traversing if the product of the current recommended gear and the current quantity meets a second constraint condition to obtain a target gear and the quantity of the second type of refrigerating unit.
Further, the second obtaining module 12 is further configured to: and if the traversed current number reaches the preset number, the target gear of the second type refrigerating unit meeting the second constraint condition is not obtained in the recommended gears, and traversing is carried out again from the second initial number in the rest gears of the second type refrigerating unit so as to obtain the target gear and the number of the second type refrigerating unit meeting the second constraint condition in the rest gears.
It should be noted that the above explanation of the embodiment of the method for selecting a refrigeration unit is also applicable to the selection device of the refrigeration unit of this embodiment, and is not repeated here.
The invention provides a selection device of a refrigerating unit, which can obtain a target interval where required refrigerating capacity is located by obtaining the required refrigerating capacity input by a user, then determine the installation parameters of the refrigerating unit based on the target interval where the required refrigerating capacity is located, and further realize the selection of the refrigerating unit.
In order to implement the above embodiments, the present invention further provides an electronic device 300, as shown in fig. 5, which includes a memory 31, a processor 32, and a computer program stored in the memory and running on the processor, and when the processor executes the program, the selecting method of the refrigeration unit is implemented.
In order to implement the above embodiments, the present invention further provides a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to implement the aforementioned selecting method of the refrigeration unit.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (12)

1. A method of selecting a refrigeration unit, comprising the steps of:
acquiring the required refrigerating capacity input by a user;
acquiring a target interval where the required refrigerating capacity is located, and determining the installation parameters of the refrigerating unit according to the target interval; wherein, the installation parameters include the type and the number of the refrigerating units and the gears of the refrigerating units, and before the target interval where the required refrigerating capacity is located is obtained, the method further includes:
the method comprises the steps of inquiring a preset type selection table of the refrigerating unit, obtaining the maximum refrigerating capacity of a first type of refrigerating unit from the type selection table, generating a plurality of intervals according to the maximum refrigerating capacity of the first type of refrigerating unit, obtaining a target interval where the required refrigerating capacity is located, and determining the installation parameters of the refrigerating unit according to the target interval, wherein the steps comprise:
if the required refrigerating capacity is in a first target interval, determining that the refrigerating unit is a first type of refrigerating unit; wherein the number of the first type of refrigerating unit is 1;
inquiring in the preset refrigeration unit type selection table to determine a target gear of the first type of refrigeration unit; the first refrigerating capacity provided by the target gear is equal to the gear of the required refrigerating capacity, or the provided first refrigerating capacity is larger than the required refrigerating capacity and has the smallest difference with the required refrigerating capacity; the upper limit value of the first target interval is the maximum refrigerating capacity of the first type of refrigerating unit;
if the required refrigerating capacity is in a second target interval, determining that the refrigerating unit is a first type of refrigerating unit; wherein the number of the first type of refrigerating unit is 2; the lower limit value of the second target interval is the maximum refrigerating capacity of the first type of refrigerating unit, and the upper limit value of the second target interval is 2 times of the maximum refrigerating capacity of the first type of refrigerating unit;
determining a second refrigerating capacity required to be provided by the first type of refrigerating unit according to the required refrigerating capacity and the required quantity;
according to the second refrigerating capacity required to be provided by the first type of refrigerating unit, inquiring in the preset refrigerating unit type selection table, and determining a target gear of the first type of refrigerating unit; the first refrigerating capacity provided by the target gear is equal to the gear of the second refrigerating capacity, or the provided first refrigerating capacity is larger than the second refrigerating capacity and has the smallest difference with the second refrigerating capacity;
if the required refrigerating capacity is in a third target interval, determining that the refrigerating unit comprises a first type refrigerating unit and a second type refrigerating unit; wherein the number of the first type of refrigerating unit is 1; the lower limit value of the third target interval is 2 times of the maximum refrigerating capacity of the first type of refrigerating unit, and the upper limit value of the third target interval is a preset refrigerating capacity limit value;
and traversing the preset refrigerating unit type selection table according to the required refrigerating capacity under a preset first constraint condition to obtain the target gears of the first type of refrigerating unit and the second type of refrigerating unit and the number of the second type of refrigerating unit.
2. The method as claimed in claim 1, wherein said traversing the preset refrigerator group model selection table according to the required refrigeration capacity under the preset constraint condition to obtain the target gear of the first type of refrigerator group and the second type of refrigerator group and the number of the second type of refrigerator group comprises:
traversing from a first preset initial number of the second type of refrigerating unit, selecting one current gear of the second type of refrigerating unit one by one according to the sequence of the gears of the second type of refrigerating unit from small to large under the current number, and screening out candidate gears of the first type of refrigerating unit from the refrigerating unit type selection table according to a first sub-condition in the first constraint condition and the current gear of the second type of refrigerating unit;
and combining the candidate gears of the first type of refrigerating unit with the current gear of the second type of refrigerating unit in a descending order, stopping traversing if the refrigerating capacity provided after combination meets a second sub-condition in the first constraint condition, obtaining the number of the second type of refrigerating unit, and taking the current gear when the first type of refrigerating unit and the second type of refrigerating unit are combined as the target gear.
3. The method as claimed in claim 1, wherein said obtaining a target interval in which the required cooling capacity is located and determining the installed parameters of the refrigerating unit according to the target interval comprises:
if the required refrigerating capacity is in a fourth target interval, determining that the refrigerating unit is a second type refrigerating unit; the lower limit value of the fourth target interval is a preset refrigerating capacity limit value;
and traversing the model selection table of the refrigerating unit according to the required refrigerating capacity under a preset second constraint condition to obtain the target gear of the second type of refrigerating unit and the number of the second type of refrigerating unit.
4. The method as claimed in claim 3, wherein, under the second preset constraint condition, traversing the model selection table of the chiller units according to the required refrigeration capacity to obtain the target gear of the second type of chiller units and the number of the second type of chiller units comprises:
acquiring a recommended gear of the second type of refrigerating unit from the refrigerating unit type selection table;
and traversing from a preset second initial quantity of the second type of refrigerating unit, selecting one gear from the recommended gears as a current recommended gear according to the sequence from small to large of the recommended gears under the current quantity, and stopping traversing if the product of the current recommended gear and the current quantity meets a second constraint condition to obtain a target gear and the quantity of the second type of refrigerating unit.
5. The method of claim 4, further comprising:
and if the current number is updated to a preset number, and the target gear of the second type of refrigerating unit meeting the second constraint condition is not obtained in the recommended gear, traversing from the second initial number in the remaining gears of the second type of refrigerating unit again to obtain the target gear and the number of the second type of refrigerating unit meeting the second constraint condition in the remaining gears.
6. A selection device for a refrigeration unit, comprising:
the first acquisition module is used for acquiring the required refrigerating capacity input by a user;
the second acquisition module is used for acquiring a target interval where the required refrigerating capacity is located and determining the installation parameters of the refrigerating unit according to the target interval; wherein, the installation parameter includes the type of refrigerating unit, quantity and the gear of refrigerating unit, still includes: a generation module;
the generating module is configured to, before obtaining a target interval where the required refrigeration capacity is located, query a preset refrigeration unit type selection table, obtain a maximum refrigeration capacity of a first type of refrigeration unit from the preset refrigeration unit type selection table, and generate a plurality of intervals according to the maximum refrigeration capacity of the first type of refrigeration unit, and the second obtaining module is further configured to:
if the required refrigerating capacity is in a first target interval, determining that the refrigerating unit is a first type of refrigerating unit; wherein the number of the first type of refrigerating unit is 1;
inquiring in the preset refrigeration unit type selection table to determine a target gear of the first type of refrigeration unit; the first refrigerating capacity provided by the target gear is equal to the gear of the required refrigerating capacity, or the provided first refrigerating capacity is larger than the required refrigerating capacity and has the smallest difference with the required refrigerating capacity; the upper limit value of the first target interval is the maximum refrigerating capacity of the first type of refrigerating unit;
if the required refrigerating capacity is in a second target interval, determining that the refrigerating unit is a first type of refrigerating unit; wherein the number of the first type of refrigerating unit is 2; the lower limit value of the second target interval is the maximum refrigerating capacity of the first type of refrigerating unit, and the upper limit value of the second target interval is 2 times of the maximum refrigerating capacity of the first type of refrigerating unit;
determining a second refrigerating capacity required to be provided by the first type of refrigerating unit according to the required refrigerating capacity and the required quantity;
according to the second refrigerating capacity required to be provided by the first type of refrigerating unit, inquiring in the preset refrigerating unit type selection table, and determining a target gear of the first type of refrigerating unit; the first refrigerating capacity provided by the target gear is equal to the gear of the second refrigerating capacity, or the provided first refrigerating capacity is larger than the second refrigerating capacity and has the smallest difference with the second refrigerating capacity;
if the required refrigerating capacity is in a third target interval, determining that the refrigerating unit comprises a first type refrigerating unit and a second type refrigerating unit; wherein the number of the first type of refrigerating unit is 1; the lower limit value of the third target interval is 2 times of the maximum refrigerating capacity of the first type of refrigerating unit, and the upper limit value of the third target interval is a preset refrigerating capacity limit value;
and traversing the preset refrigerating unit type selection table according to the required refrigerating capacity under a preset first constraint condition to obtain the target gears of the first type of refrigerating unit and the second type of refrigerating unit and the number of the second type of refrigerating unit.
7. The apparatus of claim 6, wherein the second obtaining module is further configured to:
traversing from a first preset initial number of the second type of refrigerating unit, selecting one current gear of the second type of refrigerating unit one by one according to the gear of the second type of refrigerating unit from small to large under the current number, and screening out a candidate gear of the first type of refrigerating unit from the refrigerating unit selection table according to a first sub-condition in the first constraint condition and the current gear of the second type of refrigerating unit;
and combining the candidate gears of the first type of refrigerating unit with the current gear of the second type of refrigerating unit in a descending order, stopping traversing if the refrigerating capacity provided after combination meets a second sub-condition in the first constraint condition, obtaining the number of the second type of refrigerating unit, and taking the current gear when the first type of refrigerating unit and the second type of refrigerating unit are combined as the target gear.
8. The apparatus of claim 6, wherein the second obtaining module is further configured to:
if the required refrigerating capacity is in a fourth target interval, determining that the refrigerating unit is a second type refrigerating unit; the lower limit value of the fourth target interval is a preset refrigerating capacity limit value;
and traversing the model selection table of the refrigerating unit according to the required refrigerating capacity under a preset second constraint condition to obtain the target gear of the second type of refrigerating unit and the number of the second type of refrigerating unit.
9. The apparatus of claim 8, wherein the second obtaining module is further configured to:
acquiring a recommended gear of the second type of refrigerating unit from the refrigerating unit type selection table;
and traversing from a preset second initial quantity of the second type of refrigerating unit, selecting a current recommended gear from the recommended gears according to the sequence from small to large of the recommended gears under the current quantity, and stopping traversing if the product of the current recommended gear and the current quantity meets the second constraint condition to obtain the target gear and the quantity of the second type of refrigerating unit.
10. The apparatus of claim 9, wherein the second obtaining module is further configured to:
and if the traversed current number reaches a preset number, the target gear of the second type of refrigerating unit meeting the second constraint condition is not obtained in the recommended gear, and traversing is carried out again from the second initial number in the rest gears of the second type of refrigerating unit so as to obtain the target gear and the number of the second type of refrigerating unit meeting the second constraint condition in the rest gears.
11. An electronic device comprising a memory, a processor;
wherein the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to implement the method for selecting the refrigeration unit according to any one of claims 1 to 5.
12. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out a method of selecting a refrigeration unit as claimed in any one of claims 1 to 5.
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