CN116519349A - Energy-saving efficiency testing method and device, central air-conditioning energy-saving system and medium - Google Patents
Energy-saving efficiency testing method and device, central air-conditioning energy-saving system and medium Download PDFInfo
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- CN116519349A CN116519349A CN202310435987.9A CN202310435987A CN116519349A CN 116519349 A CN116519349 A CN 116519349A CN 202310435987 A CN202310435987 A CN 202310435987A CN 116519349 A CN116519349 A CN 116519349A
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- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 238000004378 air conditioning Methods 0.000 title claims abstract description 38
- 239000012620 biological material Substances 0.000 claims abstract description 74
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000002028 Biomass Substances 0.000 claims description 60
- 238000002485 combustion reaction Methods 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 19
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
- F23N1/025—Regulating fuel supply conjointly with air supply using electrical or electromechanical means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses an energy-saving efficiency testing method, a device, a central air-conditioning energy-saving system and a medium, wherein the method comprises the following steps: responding to an energy-saving system starting instruction, and starting an energy-saving mode; acquiring the quality of single-circle biological materials pushed out by each rotation of a feeding driving disc, a first rotation circle number of the feeding driving disc and a first accumulated operation time length of a plurality of operation fans within a preset time length; determining the energy-saving efficiency of a single running fan according to the single-circle biological material quality, the first rotation circle number and the first accumulated running time length; responding to a normal system starting instruction, and starting a normal mode; acquiring a second rotation number of the feeding driving disc and a second accumulated operation time length of a plurality of operation fans within a preset time length; determining the common energy efficiency of the single-unit running fan according to the single-circle biological material quality, the second rotation circle number and the second accumulated running time length; and determining target energy-saving efficiency according to the energy-saving energy efficiency and the common energy efficiency. The energy-saving efficiency testing method provided by the embodiment of the invention can improve the accuracy of energy-saving efficiency.
Description
Technical Field
The invention relates to the technical field related to energy-saving control of air conditioners, in particular to an energy-saving efficiency testing method and device, a central air conditioner energy-saving system and medium.
Background
At present, the energy consumption for building in China is about 27% of the total social energy consumption, and the proportion is gradually increased to more than 30% along with the social development. In annual energy consumption of public buildings, the energy consumption of a central air conditioner accounts for nearly 60 percent. In general, the installation design of the central air conditioner is designed according to the most extreme weather and full load, but it is counted that 95% of central air conditioners only operate under 70% of load, and a large energy waste exists.
Taking a hotel as an example, when the check-in rate of the hotel is low, the central air conditioner still operates in a full-load state, and large energy waste exists. Therefore, many manufacturers of energy-saving reformation of central air conditioner start to perform energy-saving reformation on hotels in a cooperative mode of energy management contract, and the electricity cost saved after reformation is divided into two. However, there is a pain point, i.e. how the saved power is calculated. Most factories take the average energy consumption of hotels in nearly three years as the same ratio, but the energy consumption data have larger deviation due to different numbers of hotels and different temperature and humidity settings in rooms, so that the statistical mode is rough and inaccurate, and the great misjudgment is easy to occur when the energy conservation transformation is evaluated, so that the evaluation result of the energy conservation efficiency is influenced.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides an energy-saving efficiency testing method which can improve the accuracy of energy-saving efficiency.
The invention also provides an energy-saving efficiency testing device, a central air-conditioning energy-saving system and a computer readable storage medium.
According to the energy-saving efficiency testing method, the energy-saving efficiency testing device is applied to a central air-conditioning energy-saving system, the central air-conditioning energy-saving system is provided with an energy-saving mode and a common mode, the central air-conditioning energy-saving system comprises a central air conditioner and a biomass boiler, the central air conditioner comprises a plurality of operation fans, the biomass boiler comprises a biomass charging hopper, a feeding driving disc and a combustion boiler, and the feeding driving disc is used for feeding biomass leaked from the biomass charging hopper to the combustion boiler for combustion and heat supply after rotating;
the energy-saving efficiency testing method comprises the following steps:
responding to an energy-saving system starting instruction, and starting an energy-saving mode of the central air-conditioning energy-saving system;
acquiring the mass of single-circle biological materials pushed out by each circle of rotation of the feeding driving disc, and the first rotation circle number of the feeding driving disc and the first accumulated operation time length of a plurality of operation fans within a preset time length;
determining the energy-saving energy efficiency of the running fan of the single unit according to the single-circle biological material quality, the first rotation circle number in the preset time period and the first accumulated running time period;
responding to a common system starting instruction, and starting a common mode of the central air-conditioning energy-saving system;
acquiring a second rotation number of the feeding driving disc and a second accumulated operation duration of a plurality of operation fans within the preset duration;
determining the common energy efficiency of the running fan of the single unit according to the single-circle biological material quality, the second rotation circle number in the preset time period and the second accumulated running time period;
and determining target energy-saving efficiency according to the energy-saving energy efficiency and the common energy efficiency of the single running fan.
The energy-saving efficiency testing method provided by the embodiment of the invention has at least the following beneficial effects:
acquiring and calculating the mass of biological materials consumed in a preset time period in an energy-saving mode and the first accumulated operation time period of a plurality of operation fans by starting the energy-saving mode of the central air-conditioning energy-saving system, so as to obtain energy-saving energy efficiency; the common mode of the central air-conditioning energy-saving system is started, the biological material mass consumed in the preset time period in the common mode and the second accumulated operation time period of the plurality of operation fans are obtained and calculated, so that the common energy efficiency is obtained, and the actual consumed biological material mass can be used for accurately representing the energy consumption. The operation time length of each operation fan is considered, so that the energy efficiency is calculated by accumulating the operation time lengths, the calculation error of the energy efficiency can be reduced, and the calculation accuracy of the energy efficiency is improved. The energy-saving energy efficiency in the energy-saving mode and the common energy efficiency in the common mode can be calculated respectively to intuitively and accurately represent the saved electric energy, so that more accurate target energy-saving efficiency can be obtained, and the problem of low accuracy of the energy-saving efficiency calculated in the traditional statistical mode is solved.
According to some embodiments of the present invention, the determining the energy-saving efficiency of the operating fan according to the single-turn biomass, the first turn number within the preset duration, and the first accumulated operating duration includes the following steps:
determining a first consumed biomass mass pushed into the combustion boiler within the preset time period based on the single-turn biomass mass and the first number of turns within the preset time period;
and determining the energy-saving energy efficiency of the running fan of the single unit according to the first consumed biological material quality and the first accumulated running time within the preset time.
According to some embodiments of the present invention, the determining the normal energy efficiency of the operating fan according to the single-turn biomass, the second turn number within the preset time period, and the second accumulated operating time period includes the following steps:
determining a second consumed biomass mass pushed into the combustion boiler within the preset time period based on the single-turn biomass mass and the second number of turns within the preset time period;
and determining the common energy efficiency of the running fan of the single unit according to the second consumed biological material quality and the second accumulated running time within the preset time.
According to some embodiments of the present invention, the determining the target energy-saving efficiency according to the energy-saving efficiency and the normal energy efficiency of the single operating fan includes the following steps:
determining initial energy-saving efficiency of a single running fan in unit time based on the energy-saving energy efficiency of the single running fan and the common energy efficiency until the preset time is reached, and obtaining a plurality of initial energy-saving efficiencies;
and determining the target energy-saving efficiency according to a plurality of initial energy-saving efficiencies.
According to some embodiments of the invention, the determining the target energy-saving efficiency according to a plurality of the initial energy-saving efficiencies includes the steps of:
removing the maximum value and the minimum value in all the initial energy-saving efficiencies to obtain a residual energy-saving efficiency parameter set, wherein the residual energy-saving efficiency parameter set comprises a plurality of initial energy-saving efficiencies;
and summing all the initial energy-saving efficiencies in the residual energy-saving efficiency parameter sets, and then taking an average value to obtain the target energy-saving efficiency.
According to some embodiments of the invention, a level monitoring device is arranged in the biomass charging hopper, and the level monitoring device is used for detecting the biological material level in the biomass charging hopper; the energy-saving efficiency testing method further comprises the following steps:
acquiring the biological material level;
and generating a material shortage alarm signal according to the biological material level and the preset material shortage level so as to carry out material shortage alarm.
According to an embodiment of the second aspect of the invention, the energy-saving efficiency testing device is applied to a central air-conditioning energy-saving system, the central air-conditioning energy-saving system comprises a central air conditioner and a biomass boiler, the central air conditioner comprises a plurality of running fans, the biomass boiler comprises a biomass charging hopper, a feeding driving disc and a combustion boiler, and the feeding driving disc is used for feeding biomass leaked from the biomass charging hopper to the combustion boiler for combustion and heat supply after rotating;
the energy-saving efficiency testing device includes:
the detection device is used for detecting the quality of single-circle biological materials pushed out every time the feeding driving disc rotates, the rotation number of the feeding driving disc and the operation time of each operation fan;
the main control unit is electrically connected with the detection device and is used for executing the energy-saving efficiency testing method according to the embodiment of the first aspect.
The energy-saving efficiency testing device provided by the embodiment of the invention has at least the following beneficial effects:
acquiring and calculating the mass of biological materials consumed in a preset time period in an energy-saving mode and the first accumulated operation time period of a plurality of operation fans by starting the energy-saving mode of the central air-conditioning energy-saving system, so as to obtain energy-saving energy efficiency; the common mode of the central air-conditioning energy-saving system is started, the biological material mass consumed in the preset time period in the common mode and the second accumulated operation time period of the plurality of operation fans are obtained and calculated, so that the common energy efficiency is obtained, and the actual consumed biological material mass can be used for accurately representing the energy consumption. The operation time length of each operation fan is considered, so that the energy efficiency is calculated by accumulating the operation time lengths, the calculation error of the energy efficiency can be reduced, and the calculation accuracy of the energy efficiency is improved. The energy-saving energy efficiency in the energy-saving mode and the common energy efficiency in the common mode can be calculated respectively to intuitively and accurately represent the saved electric energy, so that more accurate target energy-saving efficiency can be obtained, and the problem of low accuracy of the energy-saving efficiency calculated in the traditional statistical mode is solved.
According to some embodiments of the invention, the detection device comprises:
the weight measuring device is used for detecting the quality of single-circle biological materials pushed out by each circle of rotation of the feeding driving disc;
the rotation angle detection device is used for detecting the rotation number of turns of the feeding driving disc;
the fan operation detection device is used for detecting the operation state of each operation fan and recording the operation time length of the operation fan when the operation fan normally operates.
An energy saving system for a central air conditioner according to an embodiment of a third aspect of the present invention includes the energy saving efficiency testing device according to the embodiment of the second aspect. The central air-conditioning energy-saving system adopts all the technical schemes of the energy-saving efficiency testing device of the embodiment, so that the central air-conditioning energy-saving system has at least all the beneficial effects brought by the technical schemes of the embodiment.
According to a fourth aspect of the present invention, a computer-readable storage medium is provided, which stores computer-executable instructions for performing the energy saving efficiency test method according to the first aspect of the present invention. Since the computer-readable storage medium adopts all the technical solutions of the energy saving efficiency testing method of the above embodiments, it has at least all the advantageous effects brought by the technical solutions of the above embodiments.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a flowchart of a method for testing energy saving efficiency according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, the description of first, second, etc. is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be determined reasonably by a person skilled in the art in combination with the specific content of the technical solution.
The energy saving efficiency test method according to the first embodiment of the present invention will be clearly and completely described below with reference to fig. 1, and it is apparent that the embodiments described below are some, but not all, embodiments of the present invention.
According to the energy-saving efficiency testing method, the energy-saving efficiency testing device is applied to a central air-conditioning energy-saving system, the central air-conditioning energy-saving system has an energy-saving mode and a common mode, the central air-conditioning energy-saving system comprises a central air conditioner and a biomass boiler, the central air conditioner comprises a plurality of running fans, the biomass boiler comprises a biomass charging hopper, a feeding driving disc and a combustion boiler, and the feeding driving disc is used for feeding biomass leaked from the biomass charging hopper to the combustion boiler for combustion and heat supply after rotating;
the energy-saving efficiency testing method comprises the following steps:
responding to an energy-saving system starting instruction, and starting an energy-saving mode of the central air-conditioning energy-saving system;
acquiring the quality of single-circle biological materials pushed out by each rotation of a feeding driving disc, a first rotation circle number of the feeding driving disc and a first accumulated operation time length of a plurality of operation fans within a preset time length;
determining the energy-saving energy efficiency of a single running fan according to the quality of single-circle biological materials, a first rotation circle number in a preset time period and a first accumulated running time period;
responding to a common system starting instruction, and starting a common mode of the central air-conditioning energy-saving system;
acquiring a second rotation number of the feeding driving disc and a second accumulated operation time length of a plurality of operation fans within a preset time length;
determining the common energy efficiency of a single running fan according to the quality of single-circle biological materials, the second rotation circle number in the preset time period and the second accumulated running time period;
and determining target energy-saving efficiency according to the energy-saving efficiency and the common energy efficiency of a single running fan.
In some embodiments of the present invention, determining the energy-saving efficiency of a single-unit operation fan according to the single-coil biological material quality, the first rotation coil within a preset time period and the first accumulated operation time period, including the following steps:
determining a first consumed biomass mass pushed into the combustion boiler within a preset time period based on the single-turn biomass mass and a first number of turns within the preset time period;
and determining the energy-saving energy efficiency of the single running fan according to the first consumed biological material quality and the first accumulated running time within the preset time.
The first rotating circle number of the feeding driving disc within the preset time period is multiplied by the single circle of biological material quality, namely the biological material quality consumed within the preset time period in the energy-saving mode is recorded as the first consumed biological material quality. The energy-saving energy efficiency of the single running fan is equal to the first consumed biological material mass divided by the first accumulated running time. The quantity of energy consumption can be accurately represented by the mass of the biological material actually consumed, and the operation time of each operation fan is considered, so that the energy efficiency is calculated by accumulating the operation time, the calculation error of the energy efficiency can be reduced, and the calculation accuracy of the energy efficiency is improved.
In some embodiments of the present invention, determining a normal energy efficiency of a single-unit operation fan according to a single-coil biological material quality, a second rotation coil within a preset time period, and a second accumulated operation time period, including the following steps:
determining a second consumed biomass mass pushed into the combustion boiler within a preset time period based on the single-turn biomass mass and a second number of turns within the preset time period;
and determining the common energy efficiency of the single running fan according to the second consumed biological material quality and the second accumulated running time within the preset time.
The second rotation circle of the feeding driving disc within the preset time period is multiplied by the mass of the single circle of biological material, namely the mass of the biological material consumed within the preset time period in the common mode is recorded as the mass of the second consumed biological material. The normal energy efficiency of a single operating fan is equal to the second spent biomass mass divided by the second cumulative operating time period. The quantity of energy consumption can be accurately represented by the mass of the biological material actually consumed, and the operation time of each operation fan is considered, so that the energy efficiency is calculated by accumulating the operation time, the calculation error of the energy efficiency can be reduced, and the calculation accuracy of the energy efficiency is improved.
In some embodiments of the present invention, determining the target energy-saving efficiency according to the energy-saving efficiency and the normal energy efficiency of a single operating fan includes the steps of:
determining initial energy-saving efficiency of a single running fan in unit time based on energy-saving energy efficiency and common energy efficiency of the single running fan until reaching preset time length, and obtaining a plurality of initial energy-saving efficiencies;
removing the maximum value and the minimum value in all initial energy-saving efficiency to obtain a residual energy-saving efficiency parameter set, wherein the residual energy-saving efficiency parameter set comprises a plurality of initial energy-saving efficiencies;
and summing all initial energy-saving efficiencies in the residual energy-saving efficiency parameter sets, and then taking an average value to obtain target energy-saving efficiency.
The constraint formula of the initial energy-saving efficiency of a single running fan in unit time length is as follows:
wherein n is a preset time length, e 1 E, common energy efficiency of a single running fan in unit time length 2 The energy-saving energy efficiency of a single running fan in unit time is achieved.
And the maximum value and the minimum value in all the initial energy-saving efficiencies are removed, and then the average value is obtained by summation, so that the error of the target energy-saving efficiency can be reduced, and the accuracy of the obtained target energy-saving efficiency is higher.
Taking twenty-four hours as an example of the preset time period, the unit time period is one hour. In the test process, the energy-saving mode can be opened for one hour, the energy-saving energy efficiency of a single running fan in the hour is read and calculated, then the energy-saving mode is switched into the normal mode for one hour, the normal energy efficiency of the single running fan in the hour is read and calculated, and the initial energy-saving efficiency in the hour is calculated. Repeating the steps until twenty-four hours of testing is finished, removing the maximum value and the minimum value in twenty-four initial energy-saving efficiencies, summing and averaging to obtain the final target energy-saving efficiency, and more accurately calculating the target energy-saving efficiency.
The above-described process is merely an ideal test process, and specific time conditions and the like can be freely set, and the present invention is not limited thereto.
In practical application, the central air conditioner energy-saving system is in an energy-saving mode when in use, the main control unit calculates the time length in the energy-saving mode as a preset time length, calculates the energy-saving energy efficiency of a single running fan in the preset time length, switches to a common mode when the central air conditioner energy-saving system does not need to be in normal use, namely in an internal settlement period, calculates the common energy efficiency of the single running fan in the preset time length which is the same as the energy-saving mode running time length in the common mode, and then combines the energy-saving energy efficiency and the common energy efficiency of the single running fan to determine the target energy-saving efficiency. The initial energy saving efficiency per hour can also be calculated in the same way as the test process, and the final target energy saving efficiency calculation is performed for the actual preset time length, which cannot be regarded as limiting the invention.
According to the energy-saving efficiency testing method provided by the embodiment of the invention, the energy-saving mode of the central air-conditioning energy-saving system is started, the biological material mass consumed in the preset duration in the energy-saving mode and the first accumulated operation duration of a plurality of operation fans are obtained and calculated, and then the energy-saving energy efficiency is obtained; the common mode of the central air-conditioning energy-saving system is started, the biological material mass consumed in the preset time period in the common mode and the second accumulated operation time period of the plurality of operation fans are obtained and calculated, so that the common energy efficiency is obtained, and the actual consumed biological material mass can be used for accurately representing the energy consumption. The operation time length of each operation fan is considered, so that the energy efficiency is calculated by accumulating the operation time lengths, the calculation error of the energy efficiency can be reduced, and the calculation accuracy of the energy efficiency is improved. The energy-saving energy efficiency in the energy-saving mode and the common energy efficiency in the common mode can be calculated respectively to intuitively and accurately represent the saved electric energy, so that more accurate target energy-saving efficiency can be obtained, and the problem of low accuracy of the energy-saving efficiency calculated in the traditional statistical mode is solved.
In some embodiments of the invention, a level monitoring device is provided in the biomass charging hopper, the level monitoring device being used for detecting the biological material level in the biomass charging hopper; the energy-saving efficiency testing method further comprises the following steps:
acquiring a biological material level;
and generating a material shortage alarm signal according to the biological material level and the preset material shortage level so as to carry out material shortage alarm.
The level monitoring device may employ an ultrasonic sensor, and utilize ultrasonic waves to detect the level of biological material in the biomass loading hopper, and the specific detection principle is known in the art by those skilled in the art, and will not be described herein. It should be noted that other sensors may be used to detect the level of the biomass material, and the specific type of the level monitoring device should not be construed as limiting the present invention.
When the biological material level is detected to be lower than the preset material shortage level, the energy-saving system of the central air conditioner can be operated again, so that the energy supply of the combustion boiler is insufficient, and the system is paralyzed. When the biological material level is lower than the preset material shortage level, a material shortage alarm signal is generated to give an alarm for material shortage, so that the system paralysis caused by insufficient energy supply of the combustion boiler due to insufficient biological material can be prevented.
In some embodiments, the material shortage alarm signal can be an audible and visual alarm performed on site, and also can be sent to a monitoring end to remotely remind a worker of timely material addition. It should be noted that the specific form and receiving end of the material shortage alarm signal can be set according to the actual situation, and the invention is not limited.
According to an embodiment of the second aspect of the invention, the energy-saving efficiency testing device is applied to a central air-conditioning energy-saving system, the central air-conditioning energy-saving system comprises a central air conditioner and a biomass boiler, the central air conditioner comprises a plurality of running fans, the biomass boiler comprises a biomass charging hopper, a feeding driving disc and a combustion boiler, and the feeding driving disc is used for feeding biomass materials leaked from the biomass charging hopper to the combustion boiler for combustion and heat supply after rotating;
the energy-saving efficiency testing device comprises a detecting device and a main control unit. The detection device is used for detecting the quality of single-circle biological materials pushed out every circle of rotation of the feeding driving disc, the number of rotations of the feeding driving disc and the operation time of each operation fan; the main control unit is electrically connected with the detection device and is used for executing the energy-saving efficiency testing method of the embodiment of the first aspect.
The energy saving efficiency test method includes, but is not limited to, the following steps:
responding to an energy-saving system starting instruction, and starting an energy-saving mode of the central air-conditioning energy-saving system;
acquiring the quality of single-circle biological materials pushed out by each rotation of a feeding driving disc, a first rotation circle number of the feeding driving disc and a first accumulated operation time length of a plurality of operation fans within a preset time length;
determining a first consumed biomass mass pushed into the combustion boiler within a preset time period based on the single-turn biomass mass and a first number of turns within the preset time period;
determining the energy-saving energy efficiency of a single running fan according to the first consumed biological material quality and the first accumulated running time within the preset time;
responding to a common system starting instruction, and starting a common mode of the central air-conditioning energy-saving system;
acquiring a second rotation number of the feeding driving disc and a second accumulated operation time length of a plurality of operation fans within a preset time length;
determining a second consumed biomass mass pushed into the combustion boiler within a preset time period based on the single-turn biomass mass and a second number of turns within the preset time period;
determining the common energy efficiency of the single running fan according to the second consumed biological material quality and the second accumulated running time within the preset time;
determining initial energy-saving efficiency of a single running fan in unit time based on energy-saving energy efficiency and common energy efficiency of the single running fan until reaching preset time length, and obtaining a plurality of initial energy-saving efficiencies;
removing the maximum value and the minimum value in all initial energy-saving efficiency to obtain a residual energy-saving efficiency parameter set, wherein the residual energy-saving efficiency parameter set comprises a plurality of initial energy-saving efficiencies;
and summing all initial energy-saving efficiencies in the residual energy-saving efficiency parameter sets, and then taking an average value to obtain target energy-saving efficiency.
The first rotating circle number of the feeding driving disc within the preset time period is multiplied by the single circle of biological material quality, namely the biological material quality consumed within the preset time period in the energy-saving mode is recorded as the first consumed biological material quality. The energy-saving energy efficiency of the single running fan is equal to the first consumed biological material mass divided by the first accumulated running time. The quantity of energy consumption can be accurately represented by the mass of the biological material actually consumed, and the operation time of each operation fan is considered, so that the energy efficiency is calculated by accumulating the operation time, the calculation error of the energy efficiency can be reduced, and the calculation accuracy of the energy efficiency is improved.
The second rotation circle of the feeding driving disc within the preset time period is multiplied by the mass of the single circle of biological material, namely the mass of the biological material consumed within the preset time period in the common mode is recorded as the mass of the second consumed biological material. The normal energy efficiency of a single operating fan is equal to the second spent biomass mass divided by the second cumulative operating time period. The quantity of energy consumption can be accurately represented by the mass of the biological material actually consumed, and the operation time of each operation fan is considered, so that the energy efficiency is calculated by accumulating the operation time, the calculation error of the energy efficiency can be reduced, and the calculation accuracy of the energy efficiency is improved.
The constraint formula of the initial energy-saving efficiency of a single running fan in unit time length is as follows:
wherein n is a preset time length, e 1 Common energy efficiency of single running fan in unit duration，e 2 The energy-saving energy efficiency of a single running fan in unit time is achieved.
And the maximum value and the minimum value in all the initial energy-saving efficiencies are removed, and then the average value is obtained by summation, so that the error of the target energy-saving efficiency can be reduced, and the accuracy of the obtained target energy-saving efficiency is higher.
According to the energy-saving efficiency testing device provided by the embodiment of the invention, the energy-saving mode of the central air-conditioning energy-saving system is started, so that the biological material mass consumed in the preset duration in the energy-saving mode and the first accumulated operation duration of a plurality of operation fans are obtained and calculated, and the energy-saving energy efficiency is further obtained; the common mode of the central air-conditioning energy-saving system is started, the biological material mass consumed in the preset time period in the common mode and the second accumulated operation time period of the plurality of operation fans are obtained and calculated, so that the common energy efficiency is obtained, and the actual consumed biological material mass can be used for accurately representing the energy consumption. The operation time length of each operation fan is considered, so that the energy efficiency is calculated by accumulating the operation time lengths, the calculation error of the energy efficiency can be reduced, and the calculation accuracy of the energy efficiency is improved. The energy-saving energy efficiency in the energy-saving mode and the common energy efficiency in the common mode can be calculated respectively to intuitively and accurately represent the saved electric energy, so that more accurate target energy-saving efficiency can be obtained, and the problem of low accuracy of the energy-saving efficiency calculated in the traditional statistical mode is solved.
In some embodiments of the invention, the detection means comprises weight measurement means, rotation angle detection means and fan operation detection means. The weight measuring device is used for detecting the quality of single-circle biological materials pushed out by each circle of rotation of the feeding driving disc; the rotation angle detection device is used for detecting the rotation number of turns of the feeding driving disc; the fan operation detection device is used for detecting the operation state of each operation fan and recording the operation time length of the operation fan when the operation fan normally operates.
The quality of single-circle biological materials pushed out by one circle of feeding driving disk can be calibrated in advance before the energy-saving efficiency testing method of the embodiment of the invention is carried out, and the weight measuring device is arranged at the blanking position of the feeding driving disk and used for measuring the quality of single-circle biological materials pushed out by one circle of feeding driving disk. The weight measuring device can adopt a balance, an electronic balance and other weighing equipment.
The rotation angle detection device can adopt a rotation encoder to measure the rotation angle of the feeding driving disc, and particularly can adopt three groups of infrared photoelectric encoders. Three groups of infrared photoelectric encoders are arranged on the rotary shaft of the feeding driving disc at equal intervals, and the three groups of infrared photoelectric encoders are convenient for accurately detecting the rotary angle of the feeding driving disc when the feeding driving disc is not rotated by an integer number of circles. The specific number and positions of the infrared photoelectric encoders may be selected according to actual needs, and the invention is not limited as long as the rotation angle of the feed drive disc can be accurately detected.
The fan operation detection device can be a distributed sub-control system electrically connected with the main control unit and is used for monitoring the operation state of each operation fan and recording the operation time length when the operation fan normally operates. It should be noted that, the specific structure of the fan operation detection device may be selected according to actual needs, so long as the corresponding function can be achieved, and the specific limitation is not provided herein.
In addition, the main control unit of the embodiment of the invention comprises: memory, a processor, and a computer program stored on the memory and executable on the processor. The processor and the memory may be connected by a bus or other means.
The memory, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. In addition, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory remotely located relative to the processor, the remote memory being connectable to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The non-transitory software programs and instructions required to implement the energy-saving efficiency test method of the above embodiments are stored in a memory, which when executed by a processor, perform the energy-saving efficiency test method of the above embodiments.
The above described apparatus embodiments are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, the fourth aspect of the present invention provides a computer-readable storage medium storing computer-executable instructions that are executed by a processor or controller, for example, by a processor of the above-mentioned main control unit, so that the above-mentioned processor performs the energy saving efficiency test method in the above-mentioned embodiment.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (10)
1. The energy-saving efficiency testing method is characterized by being applied to a central air-conditioning energy-saving system, wherein the central air-conditioning energy-saving system has an energy-saving mode and a common mode, the central air-conditioning energy-saving system comprises a central air conditioner and a biomass boiler, the central air conditioner comprises a plurality of running fans, the biomass boiler comprises a biomass charging hopper, a feeding driving disc and a combustion boiler, and the feeding driving disc is used for feeding biomass leaked from the biomass charging hopper to the combustion boiler for combustion and heat supply after rotating;
the energy-saving efficiency testing method comprises the following steps:
responding to an energy-saving system starting instruction, and starting an energy-saving mode of the central air-conditioning energy-saving system;
acquiring the mass of single-circle biological materials pushed out by each circle of rotation of the feeding driving disc, and the first rotation circle number of the feeding driving disc and the first accumulated operation time length of a plurality of operation fans within a preset time length;
determining the energy-saving energy efficiency of the running fan of the single unit according to the single-circle biological material quality, the first rotation circle number in the preset time period and the first accumulated running time period;
responding to a common system starting instruction, and starting a common mode of the central air-conditioning energy-saving system;
acquiring a second rotation number of the feeding driving disc and a second accumulated operation duration of a plurality of operation fans within the preset duration;
determining the common energy efficiency of the running fan of the single unit according to the single-circle biological material quality, the second rotation circle number in the preset time period and the second accumulated running time period;
and determining target energy-saving efficiency according to the energy-saving energy efficiency and the common energy efficiency of the single running fan.
2. The energy-saving efficiency testing method according to claim 1, wherein the determining the energy-saving efficiency of the single operating fan according to the single-turn biomass, the first turn number within the preset time period, and the first accumulated operating time period includes the following steps:
determining a first consumed biomass mass pushed into the combustion boiler within the preset time period based on the single-turn biomass mass and the first number of turns within the preset time period;
and determining the energy-saving energy efficiency of the running fan of the single unit according to the first consumed biological material quality and the first accumulated running time within the preset time.
3. The method for testing energy saving efficiency according to claim 1, wherein determining the normal energy efficiency of the single operating fan according to the single-turn biomass, the second number of turns in the preset time period, and the second accumulated operating time period comprises the following steps:
determining a second consumed biomass mass pushed into the combustion boiler within the preset time period based on the single-turn biomass mass and the second number of turns within the preset time period;
and determining the common energy efficiency of the running fan of the single unit according to the second consumed biological material quality and the second accumulated running time within the preset time.
4. The energy saving efficiency test method according to claim 1, wherein the determining the target energy saving efficiency from the energy saving efficiency and the normal energy efficiency of the single operating fan comprises the steps of:
determining initial energy-saving efficiency of a single running fan in unit time based on the energy-saving energy efficiency of the single running fan and the common energy efficiency until the preset time is reached, and obtaining a plurality of initial energy-saving efficiencies;
and determining the target energy-saving efficiency according to a plurality of initial energy-saving efficiencies.
5. The energy saving efficiency test method of claim 4, wherein said determining said target energy saving efficiency from a plurality of said initial energy saving efficiencies comprises the steps of:
removing the maximum value and the minimum value in all the initial energy-saving efficiencies to obtain a residual energy-saving efficiency parameter set, wherein the residual energy-saving efficiency parameter set comprises a plurality of initial energy-saving efficiencies;
and summing all the initial energy-saving efficiencies in the residual energy-saving efficiency parameter sets, and then taking an average value to obtain the target energy-saving efficiency.
6. The energy saving efficiency test method of claim 1, wherein a level monitoring device is provided in the biomass charging hopper, the level monitoring device being used for detecting a biological material level in the biomass charging hopper; the energy-saving efficiency testing method further comprises the following steps:
acquiring the biological material level;
and generating a material shortage alarm signal according to the biological material level and the preset material shortage level so as to carry out material shortage alarm.
7. The energy-saving efficiency testing device is characterized by being applied to a central air-conditioning energy-saving system, wherein the central air-conditioning energy-saving system comprises a central air conditioner and a biomass boiler, the central air conditioner comprises a plurality of running fans, the biomass boiler comprises a biomass charging hopper, a feeding driving disc and a combustion boiler, and the feeding driving disc is used for conveying biomass leaked from the biomass charging hopper to the combustion boiler for combustion and heat supply after rotating;
the energy-saving efficiency testing device includes:
the detection device is used for detecting the quality of single-circle biological materials pushed out every time the feeding driving disc rotates, the rotation number of the feeding driving disc and the operation time of each operation fan;
the main control unit is electrically connected with the detection device and is used for executing the energy-saving efficiency testing method according to any one of claims 1 to 6.
8. The energy saving efficiency testing apparatus according to claim 7, wherein the detecting means includes:
the weight measuring device is used for detecting the quality of single-circle biological materials pushed out by each circle of rotation of the feeding driving disc;
the rotation angle detection device is used for detecting the rotation number of turns of the feeding driving disc;
the fan operation detection device is used for detecting the operation state of each operation fan and recording the operation time length of the operation fan when the operation fan normally operates.
9. A central air conditioning energy saving system, characterized by comprising the energy saving efficiency testing apparatus according to claim 7 or 8.
10. A computer-readable storage medium storing computer-executable instructions for performing the energy saving efficiency test method according to any one of claims 1 to 6.
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