CN108489011B - Operation control method and device, air-conditioning water machine system and storage medium - Google Patents

Operation control method and device, air-conditioning water machine system and storage medium Download PDF

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CN108489011B
CN108489011B CN201810230972.8A CN201810230972A CN108489011B CN 108489011 B CN108489011 B CN 108489011B CN 201810230972 A CN201810230972 A CN 201810230972A CN 108489011 B CN108489011 B CN 108489011B
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water
water machine
capacity
group
determining
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CN108489011A (en
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黄良伟
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Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
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Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides an operation control method, an operation control device, an air-conditioning water machine system and a storage medium, wherein the air-conditioning water machine system is provided with a host water pump and a plurality of water machine units connected in parallel, and the operation control method comprises the following steps: determining an indoor side capacity requirement value according to the set water temperature at the designated position, the actual water temperature at the designated position and the running flow of the main machine water pump; determining the total energy output value of any one group of water machine units which run in a combined mode according to the environment temperature and the actual water temperature of any one group of water machine units; calculating the capacity requirement difference between the total capacity output value and the indoor side capacity requirement value of any one group of water machine units which run in a combined mode; and determining a group of water machine units which are operated in a combined mode and are to be started according to the capacity requirement difference. By the technical scheme, the system operation reliability is further improved, more energy is saved, the comfort is improved, the frequent starting and stopping phenomena of the water machine set are reduced, the service life of the compressor is prolonged, and the impact damage to a circuit is relieved.

Description

Operation control method and device, air-conditioning water machine system and storage medium
Technical Field
The invention relates to the technical field of air conditioners, in particular to an operation control method, an operation control device, an air conditioner water machine system and a computer readable storage medium.
Background
In the related technology, the starting of the parallel water machine sets is generally considered to be that the number of the water machine sets or the ratio of the number of the started water machine sets is set, for example, 50%, after the air-conditioning water machine system is operated, the capacity output value is adjusted according to the water temperature of a single water machine set, so that misjudgment of the system is easily caused, too many water machine sets are easily operated, the capacity requirement value of the indoor side is exceeded, energy is wasted, and if the parallel water machine sets are constant-speed water machine sets, the single water machine set is easily started and stopped frequently, and the water temperature is fluctuated; if the frequency conversion unit is adopted, the capacity output of a single unit is less than 50%, the frequency of starting and stopping the frequency conversion unit all the year around is high, and the impact on the service life of the compressor and the impact on circuits in the electric control box are high.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, it is an object of the present invention to provide an operation control method.
Another object of the present invention is to provide an operation control device.
It is still another object of the present invention to provide an air conditioning water machine system.
It is yet another object of the present invention to provide a computer-readable storage medium.
In order to achieve the above object, a technical solution of a first aspect of the present invention provides an operation control method, which is applied to an air-conditioning water machine system, the air-conditioning water machine system is provided with a main machine water pump and a plurality of water machine sets connected in parallel, and the operation control method includes: determining an indoor side capacity requirement value according to the set water temperature at the designated position, the actual water temperature at the designated position and the running flow of the main machine water pump; determining the total energy output value of any one group of water machine units which run in a combined mode according to the environment temperature and the actual water temperature of any one group of water machine units; calculating the capacity requirement difference between the total capacity output value and the indoor side capacity requirement value of any one group of water machine units which run in a combined mode; and determining a group of water machine units which are operated in a combined mode and are to be started according to the capacity requirement difference.
In the technical scheme, the indoor side capacity demand value is determined according to the set water temperature of the designated position, the actual water temperature of the designated position and the operation flow of the main machine water pump, the water machine unit combined operation according to the indoor side capacity demand value is favorably realized, the system operation reliability is favorably improved, the total power output value of any one group of water machine units which are jointly operated is determined according to the environment temperature and the actual water temperature of any one group of water machine units, the determination of the total power output value is relatively accurate, the system operation reliability is further improved, the capacity demand difference between the total power output value of any one group of water machine units which are jointly operated and the indoor side capacity demand value is calculated, the group of water machine units which are jointly operated to be started is determined according to the capacity demand difference, and the group of water machine units which are jointly operated to be started is more suitable for the indoor side capacity demand value, the system has the advantages of further improving the running reliability of the system, saving more energy, improving the comfort, reducing the frequent starting and stopping phenomena of the water machine set, being beneficial to prolonging the service life of the compressor and slowing down the impact damage to the circuit, thereby improving the overall reliability of the system.
It should be noted that the indoor side capacity demand value may be a cooling capacity demand value or a heating capacity demand value, and is determined by an actual operation state, and the total capacity output value may be a cooling capacity output value or a heating capacity output value, and is determined by an actual operation state.
In the above technical solution, preferably, the operation flow is mass flow, the designated location is a water outlet of the air-conditioning water system or a water inlet of the air-conditioning water system, and the indoor side capacity requirement value is determined according to the set water temperature at the designated location, the actual water temperature at the designated location, and the operation flow of the main water pump, and includes: according to a first preset formula, calculating an indoor side capacity demand value according to a set water temperature, an actual water temperature and an operation flow, wherein the first preset formula is as follows:
Q0＝c×m×|Ts 0-Tj 0|
wherein Q is0Represents the indoor side capacity demand, c represents the specific heat capacity of water, m represents the operating flow, Ts 0Indicating the set water temperature, Tj 0Representing the actual water temperature.
In the technical scheme, the operation flow is mass flow, the designated position is the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the operation flow can be detected through a mass flow meter arranged at the water outlet or the water inlet of a header pipe of the air-conditioning water machine system, the actual water temperature is detected through a temperature sensing bulb arranged at the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the data reliability is high, the indoor side capacity requirement value is calculated according to the set water temperature, the actual water temperature and the operation flow according to a first preset formula, the accuracy of determining the indoor side capacity requirement value is improved, the system operation reliability is further improved, and the frequent start and stop phenomena of the water machine set are reduced.
In any one of the above technical solutions, preferably, the operation flow is a volume flow, the designated location is a water outlet of the air-conditioning water system or a water inlet of the air-conditioning water system, and the determining the indoor side capacity requirement value according to the set water temperature at the designated location, the actual water temperature at the designated location, and the operation flow of the main water pump includes: according to a second preset formula, calculating the indoor side capacity demand value according to the set water temperature, the actual water temperature and the operation flow,
the second predetermined formula is:
Q0＝c×ρ×L×|Ts 0-Tj 0|
wherein Q is0Represents the indoor side capacity demand, c represents the specific heat capacity of water, ρ represents the density of water, L represents the operating flow, Ts 0Indicating the set water temperature, Tj 0Representing the actual water temperature.
In the technical scheme, the operation flow is volume flow, the designated position is the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the operation flow can be detected through a volume flow meter arranged at the water outlet or the water inlet of a header pipe of the air-conditioning water machine system, the actual water temperature is detected through a temperature sensing bulb arranged at the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the data reliability is high, the indoor side capacity requirement value is calculated according to the set water temperature, the actual water temperature and the operation flow according to a second preset formula, the accuracy of determining the indoor side capacity requirement value is improved, the system operation reliability is further improved, and the frequent start and stop phenomena of the water machine set are reduced.
In any one of the above technical solutions, preferably, determining a total energy output value of any one group of water machine units operated in combination according to an ambient temperature of any one water machine unit and an actual water temperature of the main machine water pump includes: determining a capacity output value corresponding to any water machine set according to the corresponding relation between the water machine set, the environment temperature, the actual water temperature and the capacity output value in a preset variable working condition table according to the environment temperature and the actual water temperature of any water machine set; and performing summation operation on the capacity output values of each water machine set in any group of combined operation to determine a total capacity output value.
In the technical scheme, according to the environment temperature and the actual water temperature of any water machine set, the corresponding capacity output value of any water machine set is determined according to the corresponding relation among the water machine sets, the environment temperature, the actual water temperature and the capacity output value in the preset variable working condition table, the preset variable working condition table is a data table of the capacity output values of different water machine sets under different working conditions under different environment temperatures and actual water temperatures, which is determined through a large number of tests, the accuracy is high, the output value of the capacity can be corresponded after the environment temperature and the actual water temperature of any water machine set are determined, and then be favorable to carrying out summation operation to the ability output value of every water machine unit of any group joint operation, determine total ability output value, promoted the certainty of determining total ability output value, be favorable to further promoting system operation reliability, be favorable to reducing the frequent phenomenon of opening and stopping of water machine unit.
In any one of the above technical solutions, preferably, determining a group of jointly-operated water turbine units to be started and operated according to the capacity requirement difference includes: determining the capacity requirement difference corresponding to each group of water machine units which run in a combined mode; and comparing the capacity requirement difference value, and determining a group of jointly operated water machine units corresponding to the minimum capacity requirement difference value as a group of jointly operated water machine units to be started.
In the technical scheme, the capacity requirement difference value corresponding to each group of the water machine units which run in a combined mode is determined, the capacity requirement difference value is compared, the group of the water machine units which run in a combined mode and correspond to the minimum capacity requirement difference value is determined to be the group of the water machine units which run in a combined mode and are to be started, and therefore the total capacity output combination which is closest to the indoor side capacity requirement value is determined in each group of the water machine units which run in a combined mode and is started to run.
In any one of the above technical solutions, preferably, determining a group of jointly-operated water turbine units to be started and operated according to the capacity requirement difference includes: judging whether the capacity requirement difference value is smaller than or equal to a preset threshold value or not; and when the capacity requirement difference is judged to be smaller than or equal to the preset threshold value, determining a group of water machine units which run in a combined mode and correspond to the capacity requirement difference as a group of water machine units which run in a combined mode and are to be started.
According to the technical scheme, whether the capacity demand difference value is smaller than or equal to the preset threshold value or not is judged, when the capacity demand difference value is judged to be smaller than or equal to the preset threshold value, the group of water machine units running in a combined mode corresponding to the capacity demand difference value is determined to be the group of water machine units running in a combined mode to be started, energy is saved, the phenomenon that the water machine units are started and stopped frequently is reduced, the reliability of the system is improved, meanwhile the determination efficiency of the group of water machine units running in a combined mode to be started is improved, and program resources are saved.
The technical solution of the second aspect of the present invention provides an operation control device, which is suitable for an air-conditioning water machine system, the air-conditioning water machine system is provided with a main machine water pump and a plurality of water machine units connected in parallel, the operation control device comprises: the determining unit is used for determining an indoor side capacity requirement value according to the set water temperature at the designated position, the actual water temperature at the designated position and the running flow of the main machine water pump; the determination unit is further configured to: determining the total energy output value of any one group of water machine units which run in a combined mode according to the environment temperature and the actual water temperature of any one group of water machine units; the calculating unit is used for calculating the capacity requirement difference between the total capacity output value and the indoor side capacity requirement value of any one group of water machine units which run in a combined mode; the determination unit is further configured to: and determining a group of water machine units which are operated in a combined mode and are to be started according to the capacity requirement difference.
In the technical scheme, the indoor side capacity demand value is determined according to the set water temperature of the designated position, the actual water temperature of the designated position and the operation flow of the main machine water pump, the water machine unit combined operation according to the indoor side capacity demand value is favorably realized, the system operation reliability is favorably improved, the total power output value of any one group of water machine units which are jointly operated is determined according to the environment temperature and the actual water temperature of any one group of water machine units, the determination of the total power output value is relatively accurate, the system operation reliability is further improved, the capacity demand difference between the total power output value of any one group of water machine units which are jointly operated and the indoor side capacity demand value is calculated, the group of water machine units which are jointly operated to be started is determined according to the capacity demand difference, and the group of water machine units which are jointly operated to be started is more suitable for the indoor side capacity demand value, the system has the advantages of further improving the running reliability of the system, saving more energy, improving the comfort, reducing the frequent starting and stopping phenomena of the water machine set, being beneficial to prolonging the service life of the compressor and slowing down the impact damage to the circuit, thereby improving the overall reliability of the system.
It should be noted that the indoor side capacity demand value may be a cooling capacity demand value or a heating capacity demand value, and is determined by an actual operation state, and the total capacity output value may be a cooling capacity output value or a heating capacity output value, and is determined by an actual operation state.
In the above technical solution, preferably, the operation flow is a mass flow, the designated location is a water outlet of the air-conditioning water system or a water inlet of the air-conditioning water system, and the calculation unit is further configured to: according to a first preset formula, calculating an indoor side capacity demand value according to a set water temperature, an actual water temperature and an operation flow, wherein the first preset formula is as follows:
Q0＝c×m×|Ts 0-Tj 0|
wherein Q is0Represents the indoor side capacity demand, c represents the specific heat capacity of water, m represents the operating flow, Ts 0Indicating the set water temperature, Tj 0Representing the actual water temperature.
In the technical scheme, the operation flow is mass flow, the designated position is the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the operation flow can be detected through a mass flow meter arranged at the water outlet or the water inlet of a header pipe of the air-conditioning water machine system, the actual water temperature is detected through a temperature sensing bulb arranged at the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the data reliability is high, the indoor side capacity requirement value is calculated according to the set water temperature, the actual water temperature and the operation flow according to a first preset formula, the accuracy of determining the indoor side capacity requirement value is improved, the system operation reliability is further improved, and the frequent start and stop phenomena of the water machine set are reduced.
In any one of the above technical solutions, preferably, the operation flow rate is a volume flow rate, the designated location is a water outlet of the air-conditioning water machine system or a water inlet of the air-conditioning water machine system, and the calculation unit is further configured to: according to a second preset formula, calculating the indoor side capacity demand value according to the set water temperature, the actual water temperature and the operation flow,
the second predetermined formula is:
Q0＝c×ρ×L×|Ts 0-Tj 0|
wherein Q is0Represents the indoor side capacity demand, c represents the specific heat capacity of water, ρ represents the density of water, L represents the operating flow, Ts 0Indicating the set water temperature, Tj 0Representing the actual water temperature.
In the technical scheme, the operation flow is volume flow, the designated position is the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the operation flow can be detected through a volume flow meter arranged at the water outlet or the water inlet of a header pipe of the air-conditioning water machine system, the actual water temperature is detected through a temperature sensing bulb arranged at the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the data reliability is high, the indoor side capacity requirement value is calculated according to the set water temperature, the actual water temperature and the operation flow according to a second preset formula, the accuracy of determining the indoor side capacity requirement value is improved, the system operation reliability is further improved, and the frequent start and stop phenomena of the water machine set are reduced.
In any one of the above technical solutions, preferably, the determining unit is further configured to: determining a capacity output value corresponding to any water machine set according to the corresponding relation between the water machine set, the environment temperature, the actual water temperature and the capacity output value in a preset variable working condition table according to the environment temperature and the actual water temperature of any water machine set; the determination unit is further configured to: and performing summation operation on the capacity output values of each water machine set in any group of combined operation to determine a total capacity output value.
In the technical scheme, according to the environment temperature and the actual water temperature of any water machine set, the corresponding capacity output value of any water machine set is determined according to the corresponding relation among the water machine sets, the environment temperature, the actual water temperature and the capacity output value in the preset variable working condition table, the preset variable working condition table is a data table of the capacity output values of different water machine sets under different working conditions under different environment temperatures and actual water temperatures, which is determined through a large number of tests, the accuracy is high, the output value of the capacity can be corresponded after the environment temperature and the actual water temperature of any water machine set are determined, and then be favorable to carrying out summation operation to the ability output value of every water machine unit of any group joint operation, determine total ability output value, promoted the certainty of determining total ability output value, be favorable to further promoting system operation reliability, be favorable to reducing the frequent phenomenon of opening and stopping of water machine unit.
In any one of the above technical solutions, preferably, the determining unit is further configured to: determining the capacity requirement difference corresponding to each group of water machine units which run in a combined mode; the determination unit is further configured to: and comparing the capacity requirement difference value, and determining a group of jointly operated water machine units corresponding to the minimum capacity requirement difference value as a group of jointly operated water machine units to be started.
In the technical scheme, the capacity requirement difference value corresponding to each group of the water machine units which run in a combined mode is determined, the capacity requirement difference value is compared, the group of the water machine units which run in a combined mode and correspond to the minimum capacity requirement difference value is determined to be the group of the water machine units which run in a combined mode and are to be started, and therefore the total capacity output combination which is closest to the indoor side capacity requirement value is determined in each group of the water machine units which run in a combined mode and is started to run.
In any one of the foregoing technical solutions, preferably, the determining unit is configured to determine whether the capability requirement difference is smaller than or equal to a preset threshold; the determination unit is further configured to: and when the capacity requirement difference is judged to be smaller than or equal to the preset threshold value, determining a group of water machine units which run in a combined mode and correspond to the capacity requirement difference as a group of water machine units which run in a combined mode and are to be started.
According to the technical scheme, whether the capacity demand difference value is smaller than or equal to the preset threshold value or not is judged, when the capacity demand difference value is judged to be smaller than or equal to the preset threshold value, the group of water machine units running in a combined mode corresponding to the capacity demand difference value is determined to be the group of water machine units running in a combined mode to be started, energy is saved, the phenomenon that the water machine units are started and stopped frequently is reduced, the reliability of the system is improved, meanwhile the determination efficiency of the group of water machine units running in a combined mode to be started is improved, and program resources are saved.
The technical scheme of the third aspect of the invention provides an air-conditioning water machine system, which is provided with a main machine water pump and a plurality of water machine units connected in parallel, and further comprises any one operation control device provided by the technical scheme of the invention.
In this technical solution, the air-conditioning water machine system includes any one of the operation control devices proposed in the technical solution of the present invention, so that all the beneficial effects of any one of the operation control devices proposed in the technical solution of the present invention are achieved, and no further description is given here.
An aspect of the fourth aspect of the present invention proposes a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the operation control method of any one of the aspects of the present invention presented above.
In this technical solution, a computer readable storage medium stores thereon a computer program, and when the computer program is executed by a processor, the steps of any one of the operation control methods proposed in the technical solutions of the present invention are implemented, so that all the beneficial effects of any one of the operation control methods proposed in the technical solutions of the present invention are achieved, and details are not described herein again.
Through the technical scheme, the indoor side capacity requirement value is determined according to the set water temperature of the designated position, the actual water temperature of the designated position and the running flow of the main water pump, meanwhile, the total capacity output value of any one group of water machine units which run in a combined mode is determined according to the environment temperature and the actual water temperature of any one water machine unit, and the indoor side capacity requirement value and the total capacity output value are compared to determine the group of water machine units which run in a combined mode to be started, so that the capacity output of the group of water machine units which run in a combined mode is enabled to be more fit with the indoor side capacity requirement value, the running reliability of the system is further improved, the system is more energy-saving, the comfort is improved, the frequent starting and stopping phenomena of the water machine units are reduced, the service life of the compressor is prolonged, the impact damage to a circuit is relieved, and.
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 above 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 shows a schematic flow diagram of an operation control method according to an embodiment of the invention;
FIG. 2 shows a schematic block diagram of an operation control device according to an embodiment of the present invention;
fig. 3 shows a structural schematic diagram of an air-conditioning water machine system according to an embodiment of the present invention;
fig. 4 shows a schematic flow diagram of an operation control method according to another embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Fig. 1 shows a schematic flow diagram of an operation control method according to an embodiment of the invention.
As shown in fig. 1, the operation control method according to the embodiment of the present invention is applicable to an air-conditioning water machine system, the air-conditioning water machine system is provided with a main machine water pump and a plurality of water machine sets connected in parallel, and the operation control method includes:
s102, determining an indoor side capacity requirement value according to the set water temperature at the designated position, the actual water temperature at the designated position and the running flow of the main machine water pump;
s104, determining the total energy output value of any one group of water machine units which run in a combined mode according to the environment temperature and the actual water temperature of any one group of water machine units;
s106, calculating a capacity requirement difference value between a total capacity output value and an indoor side capacity requirement value of any one group of water machine units which run in a combined mode;
and S108, determining a group of water machine units which are operated in a combined mode and are to be started according to the capacity requirement difference value.
In the embodiment, the indoor side capacity demand value is determined according to the set water temperature of the designated position, the actual water temperature of the designated position and the operation flow of the main water pump, the water machine set combined operation according to the indoor side capacity demand value is favorably realized, the system operation reliability is favorably improved, the total capacity output value of any one group of water machine sets in combined operation is determined according to the environment temperature and the actual water temperature of any one group of water machine sets, the determination of the total capacity output value is relatively accurate, the system operation reliability is further improved, the capacity demand difference between the total capacity output value of any one group of water machine sets in combined operation and the indoor side capacity demand value is calculated, the group of water machine sets in combined operation to be started is determined according to the capacity demand difference, and the water machine sets in combined operation to be started are more suitable for the indoor side capacity demand value, the system has the advantages of further improving the running reliability of the system, saving more energy, improving the comfort, reducing the frequent starting and stopping phenomena of the water machine set, being beneficial to prolonging the service life of the compressor and slowing down the impact damage to the circuit, thereby improving the overall reliability of the system.
It should be noted that the indoor side capacity demand value may be a cooling capacity demand value or a heating capacity demand value, and is determined by an actual operation state, and the total capacity output value may be a cooling capacity output value or a heating capacity output value, and is determined by an actual operation state.
Specifically, taking an appointed position as an example of a water outlet of an air water conditioner system, receiving a starting instruction, wherein the starting instruction comprises a set temperature, namely a set temperature of outlet water, obtaining an actual water temperature at the water outlet after a host water pump operates for a period of time, and a running flow of a header pipe, then calculating indoor side capacity demand values, detecting an environment temperature of each water machine set, combining the actual water temperature, and obtaining a total output capacity value of any water machine set combination corresponding to a preset variable working condition table, then comparing a water machine set combination closest to the indoor side capacity demand value, and starting and operating the water machine set combination, so that the total power output value of the water machine set combination started and operated is more matched with the indoor side capacity demand value, energy is saved, operation reliability is improved, and frequent starting and stopping phenomena of the water machine sets are reduced.
In the above embodiment, preferably, the determining the indoor side capacity demand value according to the set water temperature at the designated location, the actual water temperature at the designated location, and the operation flow of the main water pump includes: according to a first preset formula, calculating an indoor side capacity demand value according to a set water temperature, an actual water temperature and an operation flow, wherein the first preset formula is as follows:
Q0＝c×m×|Ts 0-Tj 0|
wherein Q is0Represents the indoor side capacity demand, c represents the specific heat capacity of water, m represents the operating flow, Ts 0Indicating the set water temperature, Tj 0Representing the actual water temperature.
In the embodiment, the operation flow is mass flow, the designated position is the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the operation flow can be detected through a mass flow meter arranged at the water outlet or the water inlet of a header pipe of the air-conditioning water machine system, the actual water temperature is detected through a temperature sensing bulb arranged at the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the data reliability is high, the indoor side capacity requirement value is calculated according to the set water temperature, the actual water temperature and the operation flow according to the first preset formula, the accuracy of determining the indoor side capacity requirement value is improved, the system operation reliability is further improved, and the frequent start and stop phenomena of the water machine set are.
In any of the above embodiments, preferably, the determining the indoor side capacity demand value according to the set water temperature at the designated location, the actual water temperature at the designated location, and the operation flow rate of the main water pump includes: according to a second preset formula, calculating the indoor side capacity demand value according to the set water temperature, the actual water temperature and the operation flow,
the second predetermined formula is:
Q0＝c×ρ×L×|Ts 0-Tj 0|
wherein Q is0Represents the indoor side capacity demand, c represents the specific heat capacity of water, ρ represents the density of water, L represents the operating flow, Ts 0Indicating the set water temperature, Tj 0Representing the actual water temperature.
In the embodiment, the operation flow is volume flow, the designated position is the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the operation flow can be detected through a volume flow meter arranged at the water outlet or the water inlet of a header pipe of the air-conditioning water machine system, the actual water temperature is detected through a temperature sensing bulb arranged at the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the data reliability is high, the indoor side capacity requirement value is calculated according to the set water temperature, the actual water temperature and the operation flow according to the second preset formula, the accuracy of determining the indoor side capacity requirement value is improved, the system operation reliability is further improved, and the frequent start and stop phenomena of the water machine set are.
In any of the above embodiments, preferably, determining the total capacity output value of any group of water machine units operated in combination according to the ambient temperature of any water machine unit and the actual water temperature of the main machine water pump includes: determining a capacity output value corresponding to any water machine set according to the corresponding relation between the water machine set, the environment temperature, the actual water temperature and the capacity output value in a preset variable working condition table according to the environment temperature and the actual water temperature of any water machine set; and performing summation operation on the capacity output values of each water machine set in any group of combined operation to determine a total capacity output value.
In the embodiment, the capacity output value corresponding to any water machine set is determined according to the corresponding relation among the water machine set, the environment temperature, the actual water temperature and the capacity output value in the preset variable working condition table according to the environment temperature and the actual water temperature where any water machine set is located, the preset variable working condition table is a data table of the capacity output values of different water machine sets under different working conditions of different environment temperatures and actual water temperatures, which is determined through a large number of tests, and the accuracy is high, the output value of the capacity can be corresponded after the environment temperature and the actual water temperature of any water machine set are determined, and then be favorable to carrying out summation operation to the ability output value of every water machine unit of any group joint operation, determine total ability output value, promoted the certainty of determining total ability output value, be favorable to further promoting system operation reliability, be favorable to reducing the frequent phenomenon of opening and stopping of water machine unit.
In any one of the above embodiments, preferably, determining a group of jointly-operated water turbine units to be started and operated according to the capacity requirement difference includes: determining the capacity requirement difference corresponding to each group of water machine units which run in a combined mode; and comparing the capacity requirement difference value, and determining a group of jointly operated water machine units corresponding to the minimum capacity requirement difference value as a group of jointly operated water machine units to be started.
In the embodiment, the total energy output combination closest to the indoor side capacity requirement value is determined in each group of water machine units in combined operation and is started to operate by determining the capacity requirement difference corresponding to each group of water machine units in combined operation, comparing the capacity requirement differences, and determining the group of water machine units in combined operation corresponding to the minimum capacity requirement difference as the group of water machine units in combined operation to be started to operate.
In any one of the above embodiments, preferably, determining a group of jointly-operated water turbine units to be started and operated according to the capacity requirement difference includes: judging whether the capacity requirement difference value is smaller than or equal to a preset threshold value or not; and when the capacity requirement difference is judged to be smaller than or equal to the preset threshold value, determining a group of water machine units which run in a combined mode and correspond to the capacity requirement difference as a group of water machine units which run in a combined mode and are to be started.
In the embodiment, by judging whether the capacity requirement difference is smaller than or equal to the preset threshold, when the capacity requirement difference is judged to be smaller than or equal to the preset threshold, the group of water machine units which run in a combined mode and correspond to the capacity requirement difference is determined to be the group of water machine units which run in a combined mode and are to be started, energy is saved, the phenomenon that the water machine units are started and stopped frequently is reduced, the reliability of the system is improved, meanwhile, the determination efficiency of the group of water machine units which run in a combined mode and are to be started is improved, and program resources are saved.
Fig. 2 shows a schematic block diagram of an operation control device 200 according to an embodiment of the present invention.
As shown in fig. 2, an operation control apparatus 200 according to an embodiment of the present invention is adapted to an air-conditioning water machine system, the air-conditioning water machine system being provided with a main water pump and a plurality of water machine units connected in parallel, the operation control apparatus 200 including: a determining unit 202 for determining an indoor side capacity demand value according to a set water temperature at a designated position, an actual water temperature at the designated position, and an operation flow rate of a main water pump; the determining unit 202 is further configured to: determining the total energy output value of any one group of water machine units which run in a combined mode according to the environment temperature and the actual water temperature of any one group of water machine units; the calculating unit 204 is used for calculating a capacity requirement difference value between a total capacity output value and an indoor side capacity requirement value of any one group of water machine units which run in a combined mode; the determining unit 202 is further configured to: and determining a group of water machine units which are operated in a combined mode and are to be started according to the capacity requirement difference.
In the embodiment, the indoor side capacity demand value is determined according to the set water temperature of the designated position, the actual water temperature of the designated position and the operation flow of the main water pump, the water machine set combined operation according to the indoor side capacity demand value is favorably realized, the system operation reliability is favorably improved, the total capacity output value of any one group of water machine sets in combined operation is determined according to the environment temperature and the actual water temperature of any one group of water machine sets, the determination of the total capacity output value is relatively accurate, the system operation reliability is further improved, the capacity demand difference between the total capacity output value of any one group of water machine sets in combined operation and the indoor side capacity demand value is calculated, the group of water machine sets in combined operation to be started is determined according to the capacity demand difference, and the water machine sets in combined operation to be started are more suitable for the indoor side capacity demand value, the system has the advantages of further improving the running reliability of the system, saving more energy, improving the comfort, reducing the frequent starting and stopping phenomena of the water machine set, being beneficial to prolonging the service life of the compressor and slowing down the impact damage to the circuit, thereby improving the overall reliability of the system.
It should be noted that the indoor side capacity demand value may be a cooling capacity demand value or a heating capacity demand value, and is determined by an actual operation state, and the total capacity output value may be a cooling capacity output value or a heating capacity output value, and is determined by an actual operation state.
Specifically, taking an appointed position as an example of a water outlet of an air water conditioner system, receiving a starting instruction, wherein the starting instruction comprises a set temperature, namely a set temperature of outlet water, obtaining an actual water temperature at the water outlet after a host water pump operates for a period of time, and a running flow of a header pipe, then calculating indoor side capacity demand values, detecting an environment temperature of each water machine set, combining the actual water temperature, and obtaining a total output capacity value of any water machine set combination corresponding to a preset variable working condition table, then comparing a water machine set combination closest to the indoor side capacity demand value, and starting and operating the water machine set combination, so that the total power output value of the water machine set combination started and operated is more matched with the indoor side capacity demand value, energy is saved, operation reliability is improved, and frequent starting and stopping phenomena of the water machine sets are reduced.
In the above embodiment, preferably, the operation flow rate is a mass flow rate, the designated location is a water outlet of the air-conditioning water machine system or a water inlet of the air-conditioning water machine system, and the calculation unit 204 is further configured to: according to a first preset formula, calculating an indoor side capacity demand value according to a set water temperature, an actual water temperature and an operation flow, wherein the first preset formula is as follows:
Q0＝c×m×|Ts 0-Tj 0|
wherein Q is0Represents the indoor side capacity demand, c represents the specific heat capacity of water, m represents the operating flow, Ts 0Indicating the set water temperature, Tj 0Representing the actual water temperature.
In the embodiment, the operation flow is mass flow, the designated position is the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the operation flow can be detected through a mass flow meter arranged at the water outlet or the water inlet of a header pipe of the air-conditioning water machine system, the actual water temperature is detected through a temperature sensing bulb arranged at the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the data reliability is high, the indoor side capacity requirement value is calculated according to the set water temperature, the actual water temperature and the operation flow according to the first preset formula, the accuracy of determining the indoor side capacity requirement value is improved, the system operation reliability is further improved, and the frequent start and stop phenomena of the water machine set are.
In any of the above embodiments, preferably, the operation flow rate is a volume flow rate, the designated location is a water outlet of the air-conditioning water system or a water inlet of the air-conditioning water system, and the calculation unit 204 is further configured to: according to a second preset formula, calculating the indoor side capacity demand value according to the set water temperature, the actual water temperature and the operation flow,
the second predetermined formula is:
Q0＝c×ρ×L×|Ts 0-Tj 0|
wherein Q is0Represents the indoor side capacity demand, c represents the specific heat capacity of water, ρ represents the density of water, L represents the operating flow, Ts 0Indicating the set water temperature, Tj 0Representing the actual water temperature.
In the embodiment, the operation flow is volume flow, the designated position is the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the operation flow can be detected through a volume flow meter arranged at the water outlet or the water inlet of a header pipe of the air-conditioning water machine system, the actual water temperature is detected through a temperature sensing bulb arranged at the water outlet of the air-conditioning water machine system or the water inlet of the air-conditioning water machine system, the data reliability is high, the indoor side capacity requirement value is calculated according to the set water temperature, the actual water temperature and the operation flow according to the second preset formula, the accuracy of determining the indoor side capacity requirement value is improved, the system operation reliability is further improved, and the frequent start and stop phenomena of the water machine set are.
In any of the above embodiments, preferably, the determining unit 202 is further configured to: determining a capacity output value corresponding to any water machine set according to the corresponding relation between the water machine set, the environment temperature, the actual water temperature and the capacity output value in a preset variable working condition table according to the environment temperature and the actual water temperature of any water machine set; the determining unit 202 is further configured to: and performing summation operation on the capacity output values of each water machine set in any group of combined operation to determine a total capacity output value.
In the embodiment, the capacity output value corresponding to any water machine set is determined according to the corresponding relation among the water machine set, the environment temperature, the actual water temperature and the capacity output value in the preset variable working condition table according to the environment temperature and the actual water temperature where any water machine set is located, the preset variable working condition table is a data table of the capacity output values of different water machine sets under different working conditions of different environment temperatures and actual water temperatures, which is determined through a large number of tests, and the accuracy is high, the output value of the capacity can be corresponded after the environment temperature and the actual water temperature of any water machine set are determined, and then be favorable to carrying out summation operation to the ability output value of every water machine unit of any group joint operation, determine total ability output value, promoted the certainty of determining total ability output value, be favorable to further promoting system operation reliability, be favorable to reducing the frequent phenomenon of opening and stopping of water machine unit.
In any of the above embodiments, preferably, the determining unit 202 is further configured to: determining the capacity requirement difference corresponding to each group of water machine units which run in a combined mode; the determining unit 202 is further configured to: and comparing the capacity requirement difference value, and determining a group of jointly operated water machine units corresponding to the minimum capacity requirement difference value as a group of jointly operated water machine units to be started.
In the embodiment, the total energy output combination closest to the indoor side capacity requirement value is determined in each group of water machine units in combined operation and is started to operate by determining the capacity requirement difference corresponding to each group of water machine units in combined operation, comparing the capacity requirement differences, and determining the group of water machine units in combined operation corresponding to the minimum capacity requirement difference as the group of water machine units in combined operation to be started to operate.
In any of the above embodiments, preferably, the determining unit 206 is configured to determine whether the capability requirement difference is smaller than or equal to a preset threshold; the determining unit 202 is further configured to: and when the capacity requirement difference is judged to be smaller than or equal to the preset threshold value, determining a group of water machine units which run in a combined mode and correspond to the capacity requirement difference as a group of water machine units which run in a combined mode and are to be started.
In the embodiment, by judging whether the capacity requirement difference is smaller than or equal to the preset threshold, when the capacity requirement difference is judged to be smaller than or equal to the preset threshold, the group of water machine units which run in a combined mode and correspond to the capacity requirement difference is determined to be the group of water machine units which run in a combined mode and are to be started, energy is saved, the phenomenon that the water machine units are started and stopped frequently is reduced, the reliability of the system is improved, meanwhile, the determination efficiency of the group of water machine units which run in a combined mode and are to be started is improved, and program resources are saved.
Fig. 3 shows a structural schematic diagram of an air-conditioning water machine system according to an embodiment of the present invention.
As shown in fig. 3, according to the air-conditioning water machine system of the embodiment of the present invention, the air-conditioning water machine system is provided with a main machine water pump 304 and a plurality of water machine sets 302 connected in parallel, which are respectively 1#, 2#, and 3#. n #, and the air-conditioning water machine system further includes any one of the operation control devices 200 provided in the above technical solutions of the present invention.
Specifically, as shown in fig. 3, the operation control device 200 is connected to the controller 306 of each water machine set 302, which is generally connected to a communication cable, and the operation control device 300 can control the start operation of each water machine set 302 through the controller 306, each water machine set has a water pump 304 and a stop valve 308 for water inlet and outlet, a flow meter 314 is disposed at the water inlet of the main pipeline to detect the operation flow, a water inlet temperature sensing bulb 310 is further disposed at the water inlet of the main pipeline to detect the actual water temperature, and a water outlet temperature sensing bulb 312 is disposed at the water outlet of the main pipeline to detect the actual water temperature. When a starting instruction is received, after the host water pump 304 operates for a period of time, the control device 200 is operated to control the water outlet temperature sensing bulb 312 or the water inlet temperature sensing bulb 310 to detect the actual water temperature, control the flow meter 314 to detect the operation flow, then obtain the set water temperature, calculate the indoor side capacity demand value, detect the environment temperature of each water machine set, determine the total capacity output value of the 1#, 2#, 3#, … and n # water machine sets under any combination condition by combining the actual water temperature, select the combination closest to the indoor side capacity demand value, and start the operation through the corresponding controller 306.
The computer-readable storage medium according to an embodiment of the present invention stores thereon a computer program that, when executed by a processor, implements the steps of the operation control method of any one of the embodiments of the present invention set forth above.
In this embodiment, a computer readable storage medium stores thereon a computer program, and when the computer program is executed by a processor, the computer program implements the steps of the operation control method according to any one of the embodiments of the present invention, so that all the beneficial effects of the operation control method according to any one of the embodiments of the present invention are achieved, and are not described herein again.
Fig. 4 shows a schematic flow diagram of an operation control method according to another embodiment of the present invention.
As shown in fig. 4, an operation control method according to another embodiment of the present invention includes
S402, a starting instruction (setting water temperature);
s404, acquiring the actual temperature T of the outlet water after the running time of the host water pump 1out 0I.e. the actual water temperature Tj 0Setting the water temperature Ts 0And an operating flow L0；
S406, preliminarily calculating the indoor side capacity demand value Q0；
In particular, the amount of the solvent to be used,
Figure BDA0001602555360000161
s408, detecting the environmental temperature T4 of each water machine set and the actual temperature T of the outlet waterout 0；
S410, estimating the total output capacity value ∑ Q of any group of water machine set in combined operation through a variable working condition tablex(x＝1，2，…，n)；
S412, calculating a capacity requirement difference value AxThe size of (d);
specifically, Ax＝|Q0-∑Qx|(x＝1，2，…，n)，
S414, judging AxWhether or not it is the minimum value AminIf yes, executing S418, otherwise executing S416;
s416, reselecting a group of water machine set total energy output values which are operated in a combined mode for comparison, and returning to S412;
s418, starting and operating the water machine set according to the combination of the x type;
and S420, after the system is started, the system enters a normal output capacity value for regulation according to the water temperature change.
The technical scheme of the invention is explained in detail by combining the attached drawings, and the invention provides an operation control method, an operation control device, an air-conditioning water machine system and a computer readable storage medium, wherein an indoor side capacity requirement value is determined according to the set water temperature of a designated position, the actual water temperature of the designated position and the operation flow of a main water pump, meanwhile, the total capacity output value of any group of water machine units which are operated in a combined mode is determined according to the environment temperature and the actual water temperature of any water machine unit, the indoor side capacity requirement value and the total capacity output value are compared to determine a group of water machine units which are operated in a combined mode to be started, so that the capacity output of the group of water machine units which are operated in a combined mode is more fit with the indoor side capacity requirement value, the system operation reliability is further improved, the energy is saved, and the comfort is also improved, the frequent starting and stopping phenomena of the water machine set are reduced, the service life of the compressor is prolonged, impact damage to a circuit is reduced, and therefore the overall reliability of the system is improved.
The steps in the method of the invention can be sequentially adjusted, combined and deleted according to actual needs.
The units in the device of the invention can be merged, divided and deleted according to actual needs.
It will be understood by those skilled in the art that all or part of the steps in the methods of the embodiments described above may be implemented by instructions associated with a program, which may be stored in a computer-readable storage medium, where the storage medium includes Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), One-time Programmable Read-Only Memory (OTPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), compact disc-Read-Only Memory (CD-ROM), or other Memory, magnetic disk, magnetic tape, or magnetic tape, Or any other medium which can be used to carry or store data and which can be read by a computer.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An operation control method is suitable for an air-conditioning water machine system, and is characterized in that the air-conditioning water machine system is provided with a main machine water pump and a plurality of water machine units connected in parallel, and the operation control method comprises the following steps:
determining an indoor side capacity demand value according to the set water temperature of the designated position, the actual water temperature of the designated position and the running flow of the main machine water pump;
determining the total energy output value of any one group of water machine units which run in a combined mode according to the environment temperature of any one group of water machine units and the actual water temperature;
calculating a capacity requirement difference value between a total capacity output value of any one group of the water machine units which are operated in a combined mode and the indoor side capacity requirement value;
determining a group of water machine units which run jointly and are to be started according to the capacity requirement difference;
the step of determining a group of water machine units which are operated in a combined mode and are to be started according to the capacity requirement difference value comprises the following steps: determining the capacity requirement difference corresponding to each group of the water machine units which run in a combined mode; comparing the capacity requirement difference value, and determining that the group of water machine units which run in a combined manner and correspond to the minimum capacity requirement difference value is the group of water machine units which run in a combined manner and are to be started; or
The step of determining a group of water machine units which are operated in a combined mode and are to be started according to the capacity requirement difference value comprises the following steps: judging whether the capacity requirement difference value is smaller than or equal to a preset threshold value or not; and when the capacity requirement difference is judged to be smaller than or equal to the preset threshold value, determining that the group of water machine sets which run in a combined mode and correspond to the capacity requirement difference is the group of water machine sets which run in a combined mode and are to be started.
2. The operation control method according to claim 1, wherein the operation flow rate is a mass flow rate, the designated location is a water outlet of the air-conditioner system or a water inlet of the air-conditioner system, and the determining the indoor-side capacity demand value according to a set water temperature of the designated location, an actual water temperature of the designated location, and the operation flow rate of the main water pump includes:
calculating the indoor side capacity demand value according to a first preset formula and the set water temperature, the actual water temperature and the operation flow, wherein the first preset formula is as follows:
Q0＝c×m×|Ts 0-Tj 0|
wherein Q is0Characterized by the indoor side capacity demand, c represents the specific heat capacity of water, m represents the operating flow, Ts 0Indicating said set water temperature, Tj 0Representing the actual water temperature.
3. The operation control method according to claim 1, wherein the operation flow rate is a volume flow rate, the designated location is a water outlet of the air-conditioner system or a water inlet of the air-conditioner system, and the determining the indoor-side capacity demand value according to the set water temperature at the designated location, the actual water temperature at the designated location, and the operation flow rate of the main water pump includes:
calculating the indoor side capacity demand value according to a second preset formula and according to the set water temperature, the actual water temperature and the operation flow,
the second preset formula is as follows:
Q0＝c×ρ×L×|Ts 0-Tj 0|
wherein Q is0Representing the indoor side capacity demand, c representing the specific heat capacity of the water, ρ representing the density of the water, L representing the operating flow, Ts 0Indicating said set water temperature, Tj 0Representing the actual water temperature.
4. The operation control method according to any one of claims 1 to 3, wherein the determining the total capacity output value of any one group of the water machine units operated in combination according to the ambient temperature of any one group of the water machine units and the actual water temperature of the main machine water pump comprises:
determining a capacity output value corresponding to any water machine set according to the environment temperature and the actual water temperature of any water machine set and the corresponding relation among the water machine set, the environment temperature, the actual water temperature and the capacity output value in a preset variable working condition table;
and carrying out summation operation on the capacity output values of each water machine set in any group of combined operation, and determining the total capacity output value.
5. The utility model provides an operation control device, is applicable to air conditioner water machine system, its characterized in that, air conditioner water machine system is equipped with host computer water pump and a plurality of water machine units that connect in parallel, operation control device includes:
the determining unit is used for determining an indoor side capacity requirement value according to the set water temperature of the specified position, the actual water temperature of the specified position and the running flow of the main machine water pump;
the determination unit is further configured to: determining the total energy output value of any one group of water machine units which run in a combined mode according to the environment temperature of any one group of water machine units and the actual water temperature;
the calculating unit is used for calculating the capacity requirement difference between the total capacity output value of any one group of the water machine units which run in a combined mode and the indoor side capacity requirement value;
the determination unit is further configured to: determining a group of water machine units which run jointly and are to be started according to the capacity requirement difference;
the determination unit is further configured to: determining the capacity requirement difference corresponding to each group of the water machine units which run in a combined mode; the determination unit is further configured to: comparing the capacity requirement difference value, and determining that the group of water machine units which run in a combined manner and correspond to the minimum capacity requirement difference value is the group of water machine units which run in a combined manner and are to be started; or
The judging unit is used for judging whether the capacity requirement difference value is smaller than or equal to a preset threshold value or not; the determination unit is further configured to: and when the capacity requirement difference is judged to be smaller than or equal to the preset threshold value, determining that the group of water machine sets which run in a combined mode and correspond to the capacity requirement difference is the group of water machine sets which run in a combined mode and are to be started.
6. The operation control device according to claim 5, wherein the operation flow rate is a mass flow rate, the specified position is a water outlet of the air-conditioner system or a water inlet of the air-conditioner system,
the computing unit is further to: calculating the indoor side capacity demand value according to a first preset formula and the set water temperature, the actual water temperature and the operation flow, wherein the first preset formula is as follows:
Q0＝c×m×|Ts 0-Tj 0|
wherein Q is0Represents the indoor side capacity demand, c represents the specific heat capacity of water, m represents the operating flow, Ts 0Indicating said set water temperature, Tj 0Representing the actual water temperature.
7. The operation control device according to claim 5, wherein the operation flow rate is a volume flow rate, the specified position is a water outlet of the air-conditioner system or a water inlet of the air-conditioner system,
the computing unit is further to: calculating the indoor side capacity demand value according to a second preset formula and according to the set water temperature, the actual water temperature and the operation flow,
the second preset formula is as follows:
Q0＝c×ρ×L×|Ts 0-Tj 0|
wherein Q is0Representing the indoor side capacity demand, c representing the specific heat capacity of the water, ρ representing the density of the water, L representing the operating flow, Ts 0Indicating said set water temperature, Tj 0Representing the actual water temperature.
8. The operation control device according to any one of claims 5 to 7,
the determination unit is further configured to: determining a capacity output value corresponding to any water machine set according to the environment temperature and the actual water temperature of any water machine set and the corresponding relation among the water machine set, the environment temperature, the actual water temperature and the capacity output value in a preset variable working condition table;
the determination unit is further configured to: and carrying out summation operation on the capacity output values of each water machine set in any group of combined operation, and determining the total capacity output value.
9. The utility model provides an air conditioner water machine system which characterized in that, air conditioner water machine system is equipped with host computer water pump and a plurality of water machine unit that connect in parallel, still includes:
the operation control device according to any one of claims 5 to 8.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the operation control method according to any one of claims 1 to 4.
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