CN114135980A - Method for determining and controlling optimized parameters of cooling side of temperature regulation system and related equipment - Google Patents
Method for determining and controlling optimized parameters of cooling side of temperature regulation system and related equipment Download PDFInfo
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- CN114135980A CN114135980A CN202111360078.0A CN202111360078A CN114135980A CN 114135980 A CN114135980 A CN 114135980A CN 202111360078 A CN202111360078 A CN 202111360078A CN 114135980 A CN114135980 A CN 114135980A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
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Abstract
The invention relates to a method for determining and controlling optimized parameters of a cooling side of a temperature regulation system and related equipment, belonging to the technical field of temperature regulation.
Description
Technical Field
The invention belongs to the technical field of temperature regulation, and particularly relates to a method for determining and controlling optimized parameters of a cooling side of a temperature regulation system and related equipment.
Background
With the development of science and technology, temperature regulation systems have occupied an important position in human life. For example, air conditioning systems have been used in various aspects of life and work. In order to optimally control the cooling side in the operation of the air conditioning system, a control method of operating the cooling pump at a constant frequency is generally used. However, the fixed frequency operation causes a high energy consumption of the cooling side. Therefore, how to reduce the operating power consumption of the cooling side becomes a technical problem to be solved urgently in the prior art.
Disclosure of Invention
The invention provides a method for determining and controlling optimized parameters of a cooling side of a temperature regulation system and related equipment, and aims to solve the technical problem that the cooling side in the prior art is high in operation energy consumption.
The technical scheme provided by the invention is as follows:
in one aspect, a method for determining optimized parameters of a cooling side of a temperature regulation system comprises the following steps:
acquiring the tail end cold load, the freezing water supply temperature, the cooling water return temperature and the cooling pump head of a temperature adjusting system;
and acquiring the number of target coolers and the target cooling water supply and return temperature difference by taking the minimum sum of the output power of the cooling side equipment as an optimization target according to the tail end cold load, the freezing water supply temperature, the cooling water return temperature, the cooling pump lift and the cooling side equipment model, wherein the number of the target coolers and the target cooling water supply and return temperature difference are optimization parameters of the cooling side of the temperature adjusting system.
Optionally, the obtaining, according to the terminal cold load, the refrigeration water supply temperature, the cooling water return temperature, the cooling pump head and the cooling side equipment model, the minimum sum of the output powers of the cooling side equipment is used as an optimization target, the number of target cold machines and the target cooling water supply and return temperature difference includes:
according to the tail end cold load, the freezing water supply temperature, the cooling return water temperature, the cooling pump lift and the cooling side equipment model, taking the minimum sum of the output powers of the cooling side equipment as an optimization target, and obtaining the sum of the output powers of the cooling side equipment under different cooling machine numbers and different cooling return water supply temperature differences;
and determining the number of the coolers and the cooling water supply and return temperature corresponding to the minimum sum of the output power of the cooling side equipment as the target number of the coolers and the target cooling water supply and return temperature difference.
Optionally, the cooling side device comprises a cooler and a cooling pump; the cooling-side equipment model includes: a chiller model and a cooling pump model.
Optionally, the obtaining, according to the terminal cold load, the refrigeration water supply temperature, the cooling water return temperature, the cooling pump head and the cooling side equipment model, the minimum sum of the output powers of the cooling side equipment is used as an optimization target, the number of target cold machines and the target cooling water supply and return temperature difference includes:
determining the load rate of the cold machine according to the tail end cold load and the number of the cold machines;
inputting the load factor of the cold machine, the freezing water supply temperature, the cooling return water temperature and the cooling return water supply temperature difference into the cold machine model, and acquiring the cold machine power under different numbers of cold machines and different cooling return water supply temperature differences; inputting the cooling water supply and return temperature difference, the cooling pump lift and the cooling water flow into the cooling pump model to obtain the cooling pump power under different cooling water supply and return temperature differences;
calculating the sum of the power of the cold machine and the power of the cooling pump;
and determining the number of the cold machines and the cooling water supply and return temperature corresponding to the minimum value of the sum of the cold machine power and the cooling pump power as the target number of the cold machines and the target cooling water supply and return temperature difference.
Optionally, the cooling water flow corresponding to the cooling water supply and return temperature difference is greater than or equal to the minimum water flow of the cooling side of the cooling machine.
Optionally, the chiller model includes a functional relationship between the chiller power and the chiller load factor, the chilled water supply temperature, the cooling return water temperature and the cooling return water supply temperature difference; and/or the presence of a gas in the gas,
the cooling pump model comprises the functional relation between the power of the cooling pump and the lift of the cooling pump, the temperature difference of cooling supply and return water and the flow of cooling water.
In another aspect, a method for optimizing control of a cooling side of a temperature regulation system includes:
according to any one of the temperature regulation system cooling side optimization parameter determination methods, the number of target coolers and the target cooling water supply and return temperature difference are determined;
and operating the temperature adjusting system according to the number of the target coolers and the target cooling water supply and return temperature difference.
In still another aspect, a thermostat cooling side optimization parameter determination device includes: the device comprises an acquisition module and a first determination module;
the acquisition module is used for acquiring the tail end cold load, the freezing water supply temperature, the cooling water return temperature and the cooling pump head of the temperature adjusting system;
the first determining module is used for obtaining the number of target cold machines and the target cooling water supply and return temperature difference by taking the minimum sum of the output power of the cooling side equipment as an optimization target according to the tail end cold load, the freezing water supply temperature, the cooling water return temperature, the cooling pump head and the cooling side equipment model, and the number of the target cold machines and the target cooling water supply and return temperature difference are optimization parameters of the cooling side of the temperature adjusting system.
In still another aspect, a cooling-side optimization control apparatus for a temperature adjustment system includes: a second determination module and an operation module;
the second determining module is used for determining the number of target coolers and the temperature difference between target cooling water supply and return water according to any one of the temperature adjusting system cooling side optimization parameter determining methods;
and the operation module is used for operating the temperature adjusting system according to the number of the target coolers and the target cooling water supply and return temperature difference.
In yet another aspect, a temperature regulation system cooling side optimization parameter determination apparatus includes: the system comprises a first processor and a first memory connected with the first processor;
the first memory is used for storing a computer program at least for executing the temperature regulation system cooling side optimization parameter determination method;
the first processor is configured to invoke and execute the computer program in the memory.
In still another aspect, a temperature regulation system cooling side optimization control apparatus includes: the second processor and a second memory connected with the second processor;
the second memory is used for storing a computer program at least for executing the temperature regulation system cooling side optimization control method;
the second processor is configured to invoke and execute the computer program in the memory.
In yet another aspect, a temperature regulation system, comprising: the cooling side optimization control device of the temperature regulation system is characterized by comprising a temperature regulation device and a control device.
In another aspect, an air conditioner is characterized by comprising the temperature adjusting system.
The invention has the beneficial effects that:
according to the method for determining and controlling the optimized parameters of the cooling side of the temperature regulating system and the related equipment, the tail end cold load, the freezing water supply temperature, the cooling water return temperature and the cooling pump lift are used as input and input into the cooling side equipment model, the sum of the output power of the cooling side equipment is used as the optimization target, the target number of the cooling machines and the target cooling water supply and return temperature difference are obtained, and therefore the output power of the cooling side equipment is reduced according to the target number of the cooling machines and the target cooling water supply and return temperature difference, the running energy consumption of the cooling side of the temperature regulating system is reduced, the lowest optimized control of the energy consumption of the cooling side is achieved, and the technical problem that the running energy consumption of the cooling side is high in the prior art is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a method for determining optimal parameters of a cooling side of a temperature regulation system according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for optimizing control of a cooling side of a temperature regulation system according to an embodiment of the present invention;
FIG. 3 is a cooling side optimization parameter determination apparatus for a temperature regulation system according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a cooling-side optimization control device of a temperature regulation system according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a cooling-side optimization parameter determination device of a temperature regulation system according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a cooling-side optimization control device of a temperature regulation system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
With the development of science and technology, temperature regulation systems have occupied an important position in human life. For example, air conditioning systems have been used in various aspects of life and work. In order to optimally control the cooling side in the operation of the air conditioning system, a control method of operating the cooling pump at a constant frequency is generally used. However, the fixed frequency operation causes a high energy consumption of the cooling side. Therefore, how to reduce the operating power consumption of the cooling side becomes a technical problem to be solved urgently in the prior art.
Based on the above, the embodiment of the invention provides a method for determining and controlling optimized parameters of a cooling side of a temperature regulation system and related equipment.
The first embodiment is as follows:
the embodiment of the invention provides a method for determining optimized parameters of a cooling side of a temperature adjusting system.
Fig. 1 is a schematic flow chart of a method for determining optimized parameters of a cooling side of a temperature adjustment system according to an embodiment of the present invention, and referring to fig. 1, the method according to an embodiment of the present invention may include the following steps:
s11, acquiring the tail end cold load, the freezing water supply temperature, the cooling water return temperature and the cooling pump head of the temperature adjusting system;
and S12, obtaining the number of target coolers and the temperature difference of target cooling water supply and return water according to the tail end cold load, the freezing water supply temperature, the cooling water return temperature, the cooling pump head and the cooling side equipment model by taking the minimum sum of the output power of the cooling side equipment as an optimization target, wherein the number of the target coolers and the temperature difference of the target cooling water supply and return water are optimization parameters of the cooling side of the temperature regulation system.
In a specific implementation process, the number of target coolers and the target cooling water supply and return temperature difference can be determined by applying the cooling side optimization parameter determination method of the temperature regulation system to the temperature regulation system according to requirements. The temperature adjustment system may be an air conditioning system, or may be another temperature adjustment system having a cooling side, which is not specifically limited in this embodiment.
In some embodiments, obtaining the target number of coolers and the target cooling and water supply and return temperature difference according to the end cooling load, the freezing water supply temperature, the cooling water return temperature, the cooling pump head and the cooling side equipment model with the minimum sum of the output powers of the cooling side equipment as an optimization target comprises:
according to the tail end cold load, the freezing water supply temperature, the cooling return water temperature, the cooling pump lift and the cooling side equipment model, taking the minimum sum of the output powers of the cooling side equipment as an optimization target, and obtaining the sum of the output powers of the cooling side equipment under different cooling machine numbers and different cooling return water supply temperature differences;
and determining the number of the coolers and the cooling water supply and return temperature corresponding to the minimum sum of the output power of the cooling side equipment as the target number of the coolers and the target cooling water supply and return temperature difference.
The number of the cold machines and the cooling water supply and return temperature difference are used as variables, the sum of the output powers of the cooling side equipment under different numbers of the cold machines and different cooling water supply and return temperature differences is calculated, and the number of the cold machines and the cooling water supply and return temperature corresponding to the minimum sum of the output powers of the cooling side equipment are determined as the target number of the cold machines and the target cooling water supply and return temperature difference.
According to the method for determining the optimized parameters of the cooling side of the temperature regulation system, the tail end cold load, the freezing water supply temperature, the cooling water return temperature and the cooling pump lift are used as input and input into a cooling side equipment model, the minimum sum of the output power of cooling side equipment is used as an optimization target, and the target number of coolers and the target cooling water supply and return temperature difference are obtained, so that the output power of the cooling side equipment is reduced according to the target number of coolers and the target cooling water supply and return temperature difference, the running energy consumption of the cooling side of the temperature regulation system is reduced, the lowest optimized control of the energy consumption of the cooling side is realized, and the technical problem that the running energy consumption of the cooling side is higher in the prior art is solved.
In some embodiments, the cold-side apparatus may include a chiller and a cooling pump; the cooling-side equipment model may include: a chiller model and a cooling pump model.
In some embodiments, obtaining the target number of coolers and the target cooling and water supply and return temperature difference according to the end cooling load, the freezing water supply temperature, the cooling water return temperature, the cooling pump head and the cooling side equipment model with the minimum sum of the output powers of the cooling side equipment as an optimization target comprises:
determining the load rate of the cold machine according to the cold load at the tail end and the number of the cold machines;
inputting the load rate of the cold machine, the freezing water supply temperature, the cooling return water temperature and the cooling water supply and return water temperature difference into a cold machine model, and obtaining the power of the cold machine under different numbers of cold machines and different cooling water supply and return water temperature differences; inputting the cooling water supply and return temperature difference, the cooling pump lift and the cooling water flow into a cooling pump model to obtain the cooling pump power under different cooling water supply and return temperature differences;
calculating the sum of the power of the cold machine and the power of the cooling pump;
and determining the number of cold machines and the cooling water supply and return temperature corresponding to the minimum value of the sum of the cold machine power and the cooling pump power as the target number of cold machines and the target cooling water supply and return temperature difference.
The tail end cold load can be recorded as P and can be obtained by real-time feedback of the tail end; the chilled water supply temperature can be recorded as T0, and can be a water outlet temperature value set by a chiller, which is determined according to specific items, which is not limited in the embodiment of the present invention; the cooling return water temperature can be recorded as T1, can be the effluent water temperature after the cooling tower is treated, and is a fixed value; the cooling pump head can be recorded as H, determined by the actual operating conditions. The cooling water supply and return temperature difference is recorded as delta T, which is the difference value between the cooling water outlet temperature of the cold machine and the cooling inlet temperature of the cold machine, and a user can set the adjusting range of the cooling water supply and return temperature difference according to needs, for example, the adjusting range can be set to be 3-8 ℃.
In this embodiment, the relationship between the cold load factor and the end cold load and the number of cold machines may be:
end cold load rate ═ end cold load ÷ single cold refrigerating output ÷ cold machine number ÷ 100% formula (1)
In the formula (1), the refrigerating capacity of a single refrigerator can be obtained according to the specific type of the refrigerator, and the cold load at the tail end is obtained by feedback of the tail end; the load rate of the refrigerator can be changed by changing the number of the refrigerators.
After the relation of the formula (1) is obtained, inputting the formula (1), the freezing water supply temperature, the cooling water return temperature and the cooling water supply and return temperature difference into a cold machine model, and obtaining cold machine power under different cold machine numbers and different cooling water supply and return temperature differences by changing different cold machine numbers and different cooling water supply and return temperature differences; and inputting the cooling water supply and return temperature difference, the cooling pump lift and the cooling water flow into the cooling pump model, and obtaining the cooling pump power under different cooling machine numbers and different cooling water supply and return temperature differences by changing different cooling machine numbers and different cooling water supply and return temperature differences. And calculating the sum of the power of the cold machines and the power of the cooling pumps, and taking the number of the cold machines and the cooling water supply and return temperature corresponding to the minimum value as the target number of the cold machines and the target cooling water supply and return temperature difference.
When the cooling water supply and return temperature is changed, the change step length can be set to be 0.2-1 ℃, and the cooling water supply and return temperature is gradually changed according to the set step length to carry out calculation test.
In some embodiments, the cooling water flow corresponding to the cooling supply return water temperature difference is greater than or equal to the minimum water flow on the cooling side of the cooler.
In some embodiments, the chiller model comprises a functional relationship between chiller power and chiller load factor, chilled water supply temperature, chilled return water temperature, and chilled water supply return temperature difference; and/or the presence of a gas in the gas,
the cooling pump model comprises the functional relation between the power of the cooling pump and the lift of the cooling pump, the temperature difference of cooling supply and return water and the flow of cooling water.
For example, when determining the model of the refrigerator, a formula of the relationship between the power of the refrigerator and the load factor of the refrigerator, the temperature of the refrigeration water supply, the temperature of the cooling water return and the temperature difference of the cooling water supply return can be fitted according to a performance curve of the refrigerator, for example, a refrigerator of a certain manufacturer 800RT is taken as an example, the performance curve fitting formula is as follows:
y ═ a × X1+ b × X2+ c × 3+ d × X4+ e formula (2)
In formula (2), Y is the chiller power; x1: the load rate of the refrigerator; x2: freezing the outlet water temperature; x3: cooling the side inlet water temperature; x4: temperature difference of water supply and return at the cooling side; a. b, c, d and e are corresponding coefficients, and the corresponding cold machine coefficients are determined according to the respective cold machine models.
In a specific implementation process, five parameters in the formula (2) can be tested according to a specific model of the refrigerator, so as to perform fitting. Wherein the parameters can be provided by a refrigerator manufacturer.
For example, the cooling pump model may be determined according to different manufacturers, and the cooling pump model may be fitted according to a cooling pump curve provided by the manufacturers, for example, a model formula of a certain manufacturer may be:
cooling pump power P0 ═ F (H cooling pump head, Δ T cooling supply and return water temperature difference, Q cooling water flow) formula (3)
In equation (3), P0 is the cooling pump power; h is the cooling pump head; delta T is the temperature difference of cooling supply return water; and Q is the flow of cooling water.
In the present application, the cooling water flow rate is a value measured in real time. It is worth to be noted that the cooling water flow corresponding to the cooling supply and return water temperature difference needs to meet the requirement of the minimum water flow on the cooling side of the cooler. In the calculation process, if the cooling water flow is less than or equal to the minimum water flow requirement of the cooling machine, the power of the cooling machine and the power of the cooling pump calculated by the temperature difference between the supply water and the return water of the cooling water are removed. Wherein, the minimum water flow of the cooling side of the refrigerator is set according to the model of the refrigerator, which is not described in this embodiment.
According to the method for determining the optimized parameters of the cooling side of the temperature regulation system, the tail end cold load, the freezing water supply temperature, the cooling water return temperature and the cooling pump lift are used as input and input into a cooling side equipment model, the minimum sum of the output power of cooling side equipment is used as an optimization target, and the target number of coolers and the target cooling water supply and return temperature difference are obtained, so that the output power of the cooling side equipment is reduced according to the target number of coolers and the target cooling water supply and return temperature difference, the running energy consumption of the cooling side of the temperature regulation system is reduced, the lowest optimized control of the energy consumption of the cooling side is realized, and the technical problem that the running energy consumption of the cooling side is higher in the prior art is solved.
Example two:
based on a general inventive concept, the embodiment of the present invention further provides a cooling side optimization control method of a temperature adjustment system.
Fig. 2 is a schematic flow chart of a method for optimizing and controlling a cooling side of a temperature adjustment system according to an embodiment of the present invention, and referring to fig. 2, the method according to the embodiment of the present invention may include the following steps:
s21, determining the number of target coolers and the target cooling water supply and return temperature difference according to the method for determining the optimal parameters of the cooling side of the temperature adjusting system described in any one of the embodiments;
and S22, operating the temperature adjusting system according to the number of the target coolers and the target cooling water supply and return temperature difference.
And after the number of the target coolers and the target cold and return water temperature difference are obtained, operating the temperature regulating system according to the number of the target coolers and the target cooling and return water temperature difference.
For example, according to the target cold supply return water temperature difference and the cooling pump lift, the corresponding cooling pump frequency is determined, the cooling pumps are operated according to the cooling pump frequency and the target number of coolers, and the coolers with the target number are started, so that the system operates according to the lowest energy consumption.
According to the cooling side optimal control method of the temperature regulation system, the number of the target coolers and the target cold water supply and return water temperature difference are obtained, and then the temperature regulation system is operated according to the number of the target coolers and the target cooling water supply and return water temperature difference, so that the temperature regulation system is operated according to the lowest energy consumption.
Example three:
based on one general inventive concept, embodiments of the present invention also provide a device for determining optimized parameters of a cooling side of a temperature adjustment system.
Fig. 3 is a device for determining optimized parameters of a cooling side of a temperature adjustment system according to an embodiment of the present invention, and referring to fig. 3, the device according to an embodiment of the present invention may include: an acquisition module 31 and a first determination module 32;
the acquiring module 31 is used for acquiring the tail end cold load, the freezing water supply temperature, the cooling water return temperature and the cooling pump head of the temperature adjusting system;
the first determining module 32 is configured to obtain the number of target coolers and the target cooling water supply and return temperature difference by using the minimum sum of the output powers of the cooling side devices as an optimization target according to the tail end cold load, the freezing water supply temperature, the cooling water return temperature, the cooling pump head and the cooling side device model, where the number of target coolers and the target cooling water supply and return temperature difference are optimization parameters of the cooling side of the temperature adjusting system.
Optionally, the first determining module 32 is configured to obtain, according to the tail end cold load, the freezing water supply temperature, the cooling water return temperature, the cooling pump head, and the cooling side equipment model, a sum of output powers of the cooling side equipment and the cooling side equipment under different cooling water supply and return temperature differences with a minimum sum of output powers of the cooling side equipment as an optimization target; and determining the number of the coolers and the cooling water supply and return temperature corresponding to the minimum sum of the output power of the cooling side equipment as the target number of the coolers and the target cooling water supply and return temperature difference.
Optionally, the cooling side device comprises a cooler and a cooling pump; the cooling-side equipment model includes: a chiller model and a cooling pump model.
Optionally, the first determining module 32 is configured to determine a cold load rate according to the end cold load and the number of cold machines; inputting the load rate of the cold machine, the freezing water supply temperature, the cooling return water temperature and the cooling water supply and return water temperature difference into a cold machine model, and obtaining the power of the cold machine under different numbers of cold machines and different cooling water supply and return water temperature differences; inputting the cooling water supply and return temperature difference, the cooling pump lift and the cooling water flow into a cooling pump model to obtain the cooling pump power under different cooling water supply and return temperature differences; calculating the sum of the power of the cold machine and the power of the cooling pump; and determining the number of cold machines and the cooling water supply and return temperature corresponding to the minimum value of the sum of the cold machine power and the cooling pump power as the target number of cold machines and the target cooling water supply and return temperature difference.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
The device for determining the optimized parameters of the cooling side of the temperature regulation system provided by the embodiment of the invention takes the tail end cold load, the freezing water supply temperature, the cooling water return temperature and the cooling pump lift as input, inputs the input into a cooling side equipment model, and takes the minimum sum of the output power of cooling side equipment as an optimization target to obtain the target number of coolers and the target cooling water supply and return temperature difference, so that the output power of the cooling side equipment is reduced according to the target number of coolers and the target cooling water supply and return temperature difference, the running energy consumption of the cooling side of the temperature regulation system is reduced, the lowest optimized control of the energy consumption of the cooling side is realized, and the technical problem of higher running energy consumption of the cooling side in the prior art is solved.
Example four:
based on a general inventive concept, embodiments of the present invention also provide a cooling side optimization control apparatus of a temperature adjustment system.
Fig. 4 is a schematic structural diagram of a cooling-side optimization control device of a temperature adjustment system according to an embodiment of the present invention, and referring to fig. 4, the device according to an embodiment of the present invention may include: a second determination module 41 and an operation module 42.
The second determining module 41 is configured to determine the number of target cooling machines and the target cooling water supply and return temperature difference according to the method for determining the optimized parameter of the cooling side of the temperature adjustment system described in any one of the embodiments;
and the operation module 42 is used for operating the temperature adjusting system according to the number of the target coolers and the target cooling water supply and return temperature difference.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
According to the cooling side optimization control device of the temperature regulation system, the temperature regulation system is operated according to the number of the target coolers and the target cooling water supply and return temperature difference after the number of the target coolers and the target cooling water supply and return temperature difference are obtained, so that the temperature regulation system is operated according to the lowest energy consumption.
Example five:
based on one general inventive concept, embodiments of the present invention provide a temperature adjustment system cooling side optimization parameter determination apparatus.
Fig. 5 is a schematic structural diagram of a device for determining optimized parameters of a cooling side of a temperature adjustment system according to an embodiment of the present invention, and referring to fig. 5, the device according to an embodiment of the present invention may include: a first processor 51, and a first memory 52 connected to the first processor;
the first memory is used for storing a computer program at least for executing the temperature regulation system cooling side optimization parameter determination method;
the first processor is used for calling and executing the computer program in the memory.
Example six:
based on one general inventive concept, embodiments of the present invention provide a cooling side optimization control apparatus of a temperature adjustment system.
Fig. 6 is a schematic structural diagram of a cooling-side optimization control device of a temperature regulation system according to an embodiment of the present invention, and referring to fig. 6, the device according to an embodiment of the present invention may include: a second processor 61, and a second memory 62 connected to the second processor;
a second memory for storing a computer program for executing at least the temperature regulation system cooling side optimization control method of any one of the above;
the second processor is used for calling and executing the computer program in the memory.
Example seven:
based on one general inventive concept, embodiments of the present invention also provide a temperature adjustment system.
The temperature regulation system provided by the embodiment of the invention can comprise the cooling side optimization control device of the temperature regulation system described in the embodiment.
Example eight:
based on a general inventive concept, an embodiment of the present invention also provides an air conditioner.
The air conditioner provided by the embodiment of the invention can comprise the temperature adjusting system described in the embodiment.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
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 specific logical functions or steps of the 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.
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. For example, 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.
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 do not necessarily 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.
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 (13)
1. A method for determining optimized parameters of a cooling side of a temperature regulation system is characterized by comprising the following steps:
acquiring the tail end cold load, the freezing water supply temperature, the cooling water return temperature and the cooling pump head of a temperature adjusting system;
and acquiring the number of target coolers and the target cooling water supply and return temperature difference by taking the minimum sum of the output power of the cooling side equipment as an optimization target according to the tail end cold load, the freezing water supply temperature, the cooling water return temperature, the cooling pump lift and the cooling side equipment model, wherein the number of the target coolers and the target cooling water supply and return temperature difference are optimization parameters of the cooling side of the temperature adjusting system.
2. The method according to claim 1, wherein the obtaining of the target number of cold machines and the target cooling water supply and return temperature difference with the minimum sum of the output powers of the cooling side equipment as an optimization target according to the terminal cold load, the freezing water supply temperature, the cooling water return temperature, the cooling pump head and the cooling side equipment model comprises:
according to the tail end cold load, the freezing water supply temperature, the cooling return water temperature, the cooling pump lift and the cooling side equipment model, taking the minimum sum of the output powers of the cooling side equipment as an optimization target, and obtaining the sum of the output powers of the cooling side equipment under different cooling machine numbers and different cooling return water supply temperature differences;
and determining the number of the coolers and the cooling water supply and return temperature corresponding to the minimum sum of the output power of the cooling side equipment as the target number of the coolers and the target cooling water supply and return temperature difference.
3. The method of claim 1, wherein the cold-side apparatus comprises a chiller and a cooling pump; the cooling-side equipment model includes: a chiller model and a cooling pump model.
4. The method according to claim 3, wherein the obtaining of the target number of cold machines and the target cooling water supply and return temperature difference with the minimum sum of the output powers of the cooling side equipment as an optimization target according to the terminal cold load, the freezing water supply temperature, the cooling water return temperature, the cooling pump head and the cooling side equipment model comprises:
determining the load rate of the cold machine according to the tail end cold load and the number of the cold machines;
inputting the load factor of the cold machine, the freezing water supply temperature, the cooling return water temperature and the cooling return water supply temperature difference into the cold machine model, and acquiring the cold machine power under different numbers of cold machines and different cooling return water supply temperature differences; inputting the cooling water supply and return temperature difference, the cooling pump lift and the cooling water flow into the cooling pump model to obtain the cooling pump power under different cooling water supply and return temperature differences;
calculating the sum of the power of the cold machine and the power of the cooling pump;
and determining the number of the cold machines and the cooling water supply and return temperature corresponding to the minimum value of the sum of the cold machine power and the cooling pump power as the target number of the cold machines and the target cooling water supply and return temperature difference.
5. The method according to claim 4, wherein the cooling water flow corresponding to the cooling supply and return water temperature difference is greater than or equal to the minimum water flow on the cooling side of the cooler.
6. The method of claim 3, wherein the chiller model comprises a functional relationship between chiller power and chiller load rate, chilled water supply temperature, chilled water return temperature, and chilled water supply and return temperature differentials; and/or the presence of a gas in the gas,
the cooling pump model comprises the functional relation between the power of the cooling pump and the lift of the cooling pump, the temperature difference of cooling supply and return water and the flow of cooling water.
7. A cooling side optimization control method of a temperature regulation system is characterized by comprising the following steps:
the method for determining the optimal parameters of the cooling side of the temperature regulation system according to any one of claims 1 to 6, wherein the number of target coolers and the target cooling water supply and return temperature difference are determined;
and operating the temperature adjusting system according to the number of the target coolers and the target cooling water supply and return temperature difference.
8. A temperature regulation system cooling side optimization parameter determination apparatus, comprising: the device comprises an acquisition module and a first determination module;
the acquisition module is used for acquiring the tail end cold load, the freezing water supply temperature, the cooling water return temperature and the cooling pump head of the temperature adjusting system;
the first determining module is used for obtaining the number of target cold machines and the target cooling water supply and return temperature difference by taking the minimum sum of the output power of the cooling side equipment as an optimization target according to the tail end cold load, the freezing water supply temperature, the cooling water return temperature, the cooling pump head and the cooling side equipment model, and the number of the target cold machines and the target cooling water supply and return temperature difference are optimization parameters of the cooling side of the temperature adjusting system.
9. A temperature regulation system cooling side optimization control apparatus, comprising: a second determination module and an operation module;
the second determination module is used for determining the number of target coolers and the target cooling water supply and return temperature difference according to the method for determining the optimal parameters of the cooling side of the temperature regulation system as claimed in any one of claims 1 to 6;
and the operation module is used for operating the temperature adjusting system according to the number of the target coolers and the target cooling water supply and return temperature difference.
10. A temperature regulation system cooling side optimization parameter determination apparatus, comprising: the system comprises a first processor and a first memory connected with the first processor;
the first memory is used for storing a computer program at least for executing the temperature regulation system cooling side optimization parameter determination method of any one of claims 1 to 6;
the first processor is configured to invoke and execute the computer program in the memory.
11. A temperature regulation system cooling side optimization control apparatus, comprising: the second processor and a second memory connected with the second processor;
the second memory is configured to store a computer program for executing at least the temperature regulation system cooling side optimization control method of claim 7;
the second processor is configured to invoke and execute the computer program in the memory.
12. A temperature regulation system, comprising: the temperature regulation system cooling side optimization control device of claim 11.
13. An air conditioner characterized by comprising the temperature adjusting system of claim 12.
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