Energy-saving efficiency testing method, device, central air-conditioning energy-saving system and medium

Abstract

This invention discloses an energy-saving efficiency testing method, apparatus, central air conditioning energy-saving system, and medium. The method includes: activating an energy-saving mode in response to an energy-saving system activation command; acquiring the mass of biomass pushed out per revolution of the feeding drive disc, the first number of revolutions of the feeding drive disc within a preset time period, and the first cumulative running time of multiple operating fans; determining the energy-saving efficiency of a single operating fan based on the mass of biomass per revolution, the first number of revolutions, and the first cumulative running time; activating a normal mode in response to a normal system activation command; acquiring the second number of revolutions of the feeding drive disc within a preset time period and the second cumulative running time of multiple operating fans; determining the normal energy efficiency of a single operating fan based on the mass of biomass per revolution, the second number of revolutions, and the second cumulative running time; and determining a target energy-saving efficiency based on the energy-saving efficiency and the normal energy efficiency. The energy-saving efficiency testing method of this invention can improve the accuracy of energy-saving efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of air conditioning energy-saving control, and in particular to energy-saving efficiency testing methods, devices, central air conditioning energy-saving systems and media. Background Technology

[0002] Currently, building energy consumption accounts for approximately 27% of my country's total social energy consumption, and this proportion is gradually increasing to over 30% with social development. In public buildings, central air conditioning accounts for nearly 60% of the annual energy consumption. Generally, central air conditioning systems are designed for the most extreme weather conditions and full load, but statistics show that 95% of central air conditioning systems only operate at 70% load, resulting in significant energy waste.

[0003] Taking hotels as an example, when hotel occupancy rates are low, the central air conditioning system often operates at full capacity, resulting in significant energy waste. Therefore, many central air conditioning energy-saving retrofit companies have begun to implement energy-saving retrofits for hotels through energy management contracts, sharing the resulting electricity savings. However, a key challenge lies in calculating these savings. Most manufacturers use the average energy consumption of hotels over the past three years as a year-on-year comparison. However, due to variations in room occupancy and temperature / humidity settings, energy consumption data can deviate significantly. This statistical method is crude and inaccurate, easily leading to substantial misjudgments during energy-saving retrofit assessments, thus affecting the evaluation results of energy efficiency. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes an energy-saving efficiency testing method that can improve the accuracy of energy-saving efficiency testing.

[0005] The present invention also provides an energy efficiency testing device, a central air conditioning energy-saving system, and a computer-readable storage medium.

[0006] According to a first aspect of the present invention, the energy efficiency testing method is applied to a central air conditioning energy-saving system, the central air conditioning energy-saving system having an energy-saving mode and a normal mode, the central air conditioning energy-saving system including a central air conditioning unit and a biomass boiler, the central air conditioning unit including multiple operating fans, the biomass boiler including a biomass charging funnel, a feeding drive disc and a combustion boiler, the feeding drive disc being rotated to send the biomass material leaking from the biomass charging funnel to the combustion boiler for combustion and heating;

[0007] The energy efficiency testing method includes the following steps:

[0008] In response to the energy-saving system activation command, the energy-saving mode of the central air conditioning energy-saving system is activated;

[0009] The mass of biomass pushed out per revolution of the feeding drive disk, the first number of revolutions of the feeding drive disk within a preset time period, and the first cumulative running time of the multiple operating fans are obtained.

[0010] The energy efficiency of a single operating fan is determined based on the mass of biomass in a single cycle, the number of the first rotations within the preset time period, and the first cumulative running time.

[0011] In response to the normal system start command, the normal mode of the central air conditioning energy-saving system is activated;

[0012] Obtain the second number of rotations of the feeding drive disc and the second cumulative operating time of the multiple operating fans within the preset time period;

[0013] The general energy efficiency of a single operating fan is determined based on the mass of biomass in a single cycle, the number of the second rotations within the preset time period, and the second cumulative running time.

[0014] The target energy efficiency is determined based on the energy-saving efficiency and the ordinary energy efficiency of a single operating fan.

[0015] The energy efficiency testing method according to embodiments of the present invention has at least the following beneficial effects:

[0016] By activating the energy-saving mode of the central air conditioning system, the energy efficiency is obtained by acquiring and calculating the mass of biomass consumed within a preset time period and the first cumulative operating time of multiple operating fans under the energy-saving mode. Similarly, by activating the normal mode of the central air conditioning system, the energy efficiency is obtained by acquiring and calculating the mass of biomass consumed within a preset time period and the second cumulative operating time of multiple operating fans under the normal mode. The actual mass of biomass consumed accurately represents the amount of energy consumed. Considering the operating time of each fan, calculating energy efficiency by accumulating the operating time reduces calculation errors and improves the accuracy of energy efficiency calculations. Calculating the energy efficiency under energy-saving mode and the normal energy efficiency under normal mode separately provides a very intuitive and accurate representation of the saved electricity, resulting in a more accurate target energy efficiency and solving the problem of low accuracy in energy efficiency calculations using traditional statistical methods.

[0017] According to some embodiments of the present invention, determining the energy efficiency of a single operating fan based on the mass of biomass per cycle, the first number of rotations within the preset time period, and the first cumulative operating time includes the following steps:

[0018] The first mass of biomass consumed within the preset time period is determined based on the mass of biomass in a single rotation and the number of the first rotations within the preset time period.

[0019] The energy efficiency of a single operating fan is determined based on the first mass of consumed biomass and the first accumulated operating time within the preset time period.

[0020] According to some embodiments of the present invention, determining the general energy efficiency of a single operating fan based on the mass of biomass per cycle, the second number of rotations within the preset time period, and the second cumulative operating time includes the following steps:

[0021] The second mass of biomass consumed within the preset time period is determined based on the mass of biomass in a single rotation and the number of the second rotations within the preset time period.

[0022] The general energy efficiency of a single operating fan is determined based on the second consumed biomass mass and the second accumulated operating time within the preset time period.

[0023] According to some embodiments of the present invention, determining the target energy efficiency based on the energy-saving efficiency and the ordinary energy efficiency of a single operating fan includes the following steps:

[0024] Based on the energy-saving efficiency and ordinary energy efficiency of a single operating fan, the initial energy-saving efficiency of a single operating fan within a unit time is determined until the preset time is reached, thus obtaining multiple initial energy-saving efficiencies.

[0025] The target energy efficiency is determined based on multiple initial energy efficiency values.

[0026] According to some embodiments of the present invention, determining the target energy efficiency based on a plurality of initial energy-saving efficiencies includes the following steps:

[0027] Remove the maximum and minimum values ​​from all the initial energy-saving efficiencies to obtain the remaining energy-saving efficiency parameter set, which includes multiple initial energy-saving efficiencies;

[0028] The target energy efficiency is obtained by summing all the initial energy efficiencies in the remaining energy efficiency parameter group and taking the average value.

[0029] According to some embodiments of the present invention, the biomass loading funnel is equipped with a material level monitoring device, which is used to detect the material level of the biomass in the biomass loading funnel; the energy-saving efficiency testing method further includes the following steps:

[0030] Obtain the biomass material level;

[0031] A material shortage alarm signal is generated based on the biomass level and the preset material shortage level to provide a material shortage warning.

[0032] According to a second aspect of the present invention, an energy efficiency testing device is applied to a central air conditioning energy-saving system, the central air conditioning energy-saving system including a central air conditioning unit and a biomass boiler, the central air conditioning unit including multiple operating fans, the biomass boiler including a biomass charging funnel, a feeding drive disc and a combustion boiler, the feeding drive disc being rotated to send the biomass material leaking out of the biomass charging funnel to the combustion boiler for combustion and heating.

[0033] The energy efficiency testing device includes:

[0034] The detection device is used to detect the mass of single-circle biological material pushed out by the feeding drive disc in one rotation, the number of rotations of the feeding drive disc, and the running time of each of the operating fans.

[0035] The main control unit is electrically connected to the detection device and is used to execute the energy efficiency testing method as described in the first aspect embodiment above.

[0036] The energy efficiency testing device according to embodiments of the present invention has at least the following beneficial effects:

[0037] By activating the energy-saving mode of the central air conditioning system, the energy efficiency is obtained by acquiring and calculating the mass of biomass consumed within a preset time period and the first cumulative operating time of multiple operating fans under the energy-saving mode. Similarly, by activating the normal mode of the central air conditioning system, the energy efficiency is obtained by acquiring and calculating the mass of biomass consumed within a preset time period and the second cumulative operating time of multiple operating fans under the normal mode. The actual mass of biomass consumed accurately represents the amount of energy consumed. Considering the operating time of each fan, calculating energy efficiency by accumulating the operating time reduces calculation errors and improves the accuracy of energy efficiency calculations. Calculating the energy efficiency under energy-saving mode and the normal energy efficiency under normal mode separately provides a very intuitive and accurate representation of the saved electricity, resulting in a more accurate target energy efficiency and solving the problem of low accuracy in energy efficiency calculations using traditional statistical methods.

[0038] According to some embodiments of the present invention, the detection device includes:

[0039] A weight measuring device is used to detect the mass of the single ring of biological material pushed out by the feeding drive disk for each rotation.

[0040] A rotation angle detection device is used to detect the number of rotations of the feeding drive disc;

[0041] A fan operation detection device is used to detect the operating status of each of the operating fans and record the operating time of the operating fans during normal operation.

[0042] The central air conditioning energy-saving system according to a third aspect embodiment of the present invention includes the energy-saving efficiency testing device as described in the second aspect embodiment above. Since the central air conditioning energy-saving system adopts all the technical solutions of the energy-saving efficiency testing device of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0043] According to a fourth aspect embodiment of the present invention, a computer-readable storage medium stores computer-executable instructions for performing the energy efficiency testing method as described in the first aspect embodiment. Since the computer-readable storage medium employs all the technical solutions of the energy efficiency testing method of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0044] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0045] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0046] Figure 1 This is a flowchart of an energy efficiency testing method according to an embodiment of the present invention. Detailed Implementation

[0047] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0048] In the description of the present invention, if there is a description of first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0049] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0051] The following will combine Figure 1 The energy efficiency testing method of the first aspect of the present invention will be clearly and completely described. Obviously, the embodiments described below are some embodiments of the present invention, not all embodiments.

[0052] According to the first aspect of the present invention, the energy efficiency testing method is applied to a central air conditioning energy-saving system. The central air conditioning energy-saving system has an energy-saving mode and a normal mode. The central air conditioning energy-saving system includes a central air conditioning unit and a biomass boiler. The central air conditioning unit includes multiple operating fans. The biomass boiler includes a biomass charging hopper, a feeding drive disc, and a combustion boiler. The feeding drive disc is used to rotate and send the biomass material leaking out of the biomass charging hopper to the combustion boiler for combustion and heating.

[0053] The energy efficiency testing method includes the following steps:

[0054] In response to the energy-saving system activation command, the energy-saving mode of the central air conditioning energy-saving system is activated.

[0055] The mass of biomass pushed out per revolution of the feeding drive disc, the first number of revolutions of the feeding drive disc within a preset time period, and the first cumulative running time of multiple operating fans are obtained.

[0056] The energy efficiency of a single operating fan is determined based on the mass of biomass in a single cycle, the number of the first rotations within a preset time period, and the first cumulative running time.

[0057] In response to the normal system start command, the normal mode of the central air conditioning energy-saving system is activated;

[0058] Get the second number of rotations of the feeding drive disc and the second cumulative running time of multiple operating fans within a preset time period;

[0059] The general energy efficiency of a single operating fan is determined based on the mass of biomass in a single cycle, the number of second rotations within a preset time period, and the second cumulative operating time.

[0060] The target energy efficiency is determined based on the energy-saving efficiency and ordinary energy efficiency of a single operating fan.

[0061] In some embodiments of the present invention, the energy efficiency of a single operating fan is determined based on the mass of biomass in a single cycle, the first number of rotations within a preset time period, and the first cumulative operating time, including the following steps:

[0062] The mass of the first biomass consumed within the preset time period is determined based on the mass of biomass in a single cycle and the number of the first rotations within the preset time period.

[0063] The energy efficiency of a single operating fan is determined based on the first mass of biomass consumed within a preset time period and the first cumulative operating time.

[0064] The mass of biomass consumed in the preset time mode is calculated by multiplying the first rotation number of the feeding drive disc within the preset time by the mass of biomass per rotation. This mass is denoted as the first mass of biomass consumed. The energy efficiency of a single operating fan is equal to the first mass of biomass consumed divided by the first accumulated operating time. Using the actual mass of biomass consumed accurately represents the amount of energy consumed. By considering the operating time of each operating fan and calculating energy efficiency by accumulating the operating time, the calculation error of energy efficiency can be reduced, and the accuracy of energy efficiency calculation can be improved.

[0065] In some embodiments of the present invention, the general energy efficiency of a single operating fan is determined based on the mass of biomass in a single cycle, the number of second rotations within a preset time period, and the second cumulative operating time, including the following steps:

[0066] The second mass of biomass consumed in the combustion boiler within the preset time period is determined based on the mass of biomass in a single cycle and the number of second rotations within the preset time period.

[0067] The general energy efficiency of a single operating fan is determined based on the second mass of biomass consumed within a preset time period and the second cumulative operating time.

[0068] The second number of rotations of the feeding drive disc within a preset time period, multiplied by the mass of biomass per rotation, equals the mass of biomass consumed within the preset time period in normal mode, denoted as the second consumed biomass mass. The normal energy efficiency of a single operating fan is equal to the second consumed biomass mass divided by the second accumulated operating time. Using the actual consumed biomass mass accurately represents the amount of energy consumed. Considering the operating time of each operating fan, calculating energy efficiency by accumulating the operating time reduces calculation errors and improves the accuracy of energy efficiency calculations.

[0069] In some embodiments of the present invention, the target energy efficiency is determined based on the energy-saving efficiency and ordinary energy efficiency of a single operating fan, including the following steps:

[0070] The initial energy efficiency of a single operating fan is determined based on its energy efficiency and ordinary energy efficiency within a unit of time until a preset time is reached, thus obtaining multiple initial energy efficiencies.

[0071] Remove the maximum and minimum values ​​from all initial energy-saving efficiencies to obtain the remaining energy-saving efficiency parameter set, which includes multiple initial energy-saving efficiencies.

[0072] The target energy efficiency is obtained by summing all the initial energy efficiency parameters in the remaining energy efficiency parameter set and taking the average value.

[0073] The constraint formula for the initial energy-saving efficiency of a single operating fan within a unit of time is:

[0074]

[0075] Where n is the preset duration, e1 is the normal energy efficiency of a single operating fan within a unit duration, and e2 is the energy-saving efficiency of a single operating fan within a unit duration.

[0076] By removing the maximum and minimum values ​​from all initial energy-saving efficiencies and then summing them up and taking the average, the error in the target energy-saving efficiency can be reduced, resulting in a more accurate target energy-saving efficiency.

[0077] Taking a preset duration of 24 hours as an example, the unit of time is one hour. During the test, the energy-saving mode can be turned on for one hour to read and calculate the energy efficiency of a single operating fan during that hour. Then, switch to normal mode for one hour to read and calculate the normal energy efficiency of a single operating fan during that hour, and calculate the initial energy efficiency for that hour. Repeat the above steps until the 24-hour test is completed. Remove the maximum and minimum values ​​from the 24 initial energy efficiency values, sum them up, and take the average to obtain the final target energy efficiency, which allows for a more accurate calculation of the target energy efficiency.

[0078] It should be noted that the above process is only a test process under ideal conditions, and the specific time conditions, etc. can be set freely, and should not be regarded as a limitation of the present invention.

[0079] In practical applications, central air conditioning energy-saving systems are always in energy-saving mode when put into use. The main control unit calculates the duration of operation in energy-saving mode as a preset duration and calculates the energy efficiency of a single operating fan within that preset duration. When the central air conditioning energy-saving system is not in normal use (i.e., during internal settlement periods), it switches to normal mode and calculates the normal energy efficiency of a single operating fan within the same preset duration as the energy-saving mode. The target energy efficiency is then determined by combining the energy efficiency of a single operating fan with the normal energy efficiency. Alternatively, the initial energy efficiency can be calculated hourly, similar to the testing process, and the final target energy efficiency can be calculated for the actual preset duration. This should not be considered a limitation of the invention.

[0080] According to the energy efficiency testing method of this invention, by activating the energy-saving mode of the central air conditioning energy-saving system, the mass of biomass consumed within a preset time period and the first cumulative running time of multiple operating fans in the energy-saving mode are obtained and calculated to obtain the energy-saving efficiency. By activating the normal mode of the central air conditioning energy-saving system, the mass of biomass consumed within a preset time period and the second cumulative running time of multiple operating fans in the normal mode are obtained and calculated to obtain the normal energy efficiency. The actual mass of biomass consumed can accurately represent the amount of energy consumed. Considering the running time of each operating fan, the energy efficiency is calculated by accumulating the running time, which can reduce the calculation error of energy efficiency and improve the calculation accuracy. Calculating the energy-saving efficiency in the energy-saving mode and the normal energy efficiency in the normal mode separately can very intuitively and accurately represent the saved electrical energy, thereby obtaining a more accurate target energy-saving efficiency and solving the problem of low accuracy of energy efficiency calculated by traditional statistical methods.

[0081] In some embodiments of the present invention, a material level monitoring device is provided in the biomass charging funnel, the material level monitoring device being used to detect the material level of the biomass in the biomass charging funnel; the energy efficiency testing method further includes the following steps:

[0082] Obtain the biomass level;

[0083] A material shortage alarm signal is generated based on the biomass level and the preset material shortage level to provide a material shortage warning.

[0084] The material level monitoring device can employ an ultrasonic sensor to detect the material level in the biomass charging funnel using ultrasonic waves. The specific detection principle is existing technology known to those skilled in the art and will not be elaborated here. It should be noted that other sensors can also be used to detect the material level, and the specific selection of the material level monitoring device should not be considered a limitation of the present invention.

[0085] When the biomass level is detected to be below the preset shortage level, continued operation of the central air conditioning energy-saving system may lead to insufficient power supply from the combustion boiler, resulting in system failure. Generating a shortage alarm signal when the biomass level falls below the preset shortage level prevents insufficient biomass from causing insufficient power supply to the combustion boiler and thus system failure.

[0086] In some embodiments, the material shortage alarm signal can be an on-site audible and visual alarm, or it can be sent to a monitoring terminal to remotely remind staff to replenish materials in a timely manner. It should be noted that the specific form of the material shortage alarm signal and the receiving terminal can be set according to actual conditions and should not be considered a limitation of the present invention.

[0087] According to a second aspect of the present invention, an energy efficiency testing device is applied to a central air conditioning energy-saving system. The central air conditioning energy-saving system includes a central air conditioning unit and a biomass boiler. The central air conditioning unit includes multiple operating fans. The biomass boiler includes a biomass charging hopper, a feeding drive disc, and a combustion boiler. The feeding drive disc is used to rotate and send the biomass material leaking out of the biomass charging hopper to the combustion boiler for combustion and heating.

[0088] The energy efficiency testing device includes a detection device and a main control unit. The detection device is used to detect the mass of biomass pushed out per revolution of the feeding drive disc, the number of revolutions of the feeding drive disc, and the operating time of each operating fan; the main control unit is electrically connected to the detection device and is used to execute the energy efficiency testing method of the first aspect embodiment described above.

[0089] Energy efficiency testing methods include, but are not limited to, the following steps:

[0090] In response to the energy-saving system activation command, the energy-saving mode of the central air conditioning energy-saving system is activated.

[0091] The mass of biomass pushed out per revolution of the feeding drive disc, the first number of revolutions of the feeding drive disc within a preset time period, and the first cumulative running time of multiple operating fans are obtained.

[0092] The mass of the first biomass consumed within the preset time period is determined based on the mass of biomass in a single cycle and the number of the first rotations within the preset time period.

[0093] The energy efficiency of a single operating fan is determined based on the first mass of biomass consumed and the first cumulative operating time within a preset time period.

[0094] In response to the normal system start command, the normal mode of the central air conditioning energy-saving system is activated;

[0095] Get the second number of rotations of the feeding drive disc and the second cumulative running time of multiple operating fans within a preset time period;

[0096] The second mass of biomass consumed in the combustion boiler within the preset time period is determined based on the mass of biomass in a single cycle and the number of second rotations within the preset time period.

[0097] The general energy efficiency of a single operating fan is determined based on the second mass of biomass consumed within a preset time period and the second cumulative operating time.

[0098] The initial energy efficiency of a single operating fan is determined based on its energy efficiency and ordinary energy efficiency within a unit of time until a preset time is reached, thus obtaining multiple initial energy efficiencies.

[0099] Remove the maximum and minimum values ​​from all initial energy-saving efficiencies to obtain the remaining energy-saving efficiency parameter set, which includes multiple initial energy-saving efficiencies.

[0100] The target energy efficiency is obtained by summing all the initial energy efficiency parameters in the remaining energy efficiency parameter set and taking the average value.

[0101] The mass of biomass consumed in the preset time mode is calculated by multiplying the first rotation number of the feeding drive disc within the preset time by the mass of biomass per rotation. This mass is denoted as the first mass of biomass consumed. The energy efficiency of a single operating fan is equal to the first mass of biomass consumed divided by the first accumulated operating time. Using the actual mass of biomass consumed accurately represents the amount of energy consumed. By considering the operating time of each operating fan and calculating energy efficiency by accumulating the operating time, the calculation error of energy efficiency can be reduced, and the accuracy of energy efficiency calculation can be improved.

[0102] The second number of rotations of the feeding drive disc within a preset time period, multiplied by the mass of biomass per rotation, equals the mass of biomass consumed within the preset time period in normal mode, denoted as the second consumed biomass mass. The normal energy efficiency of a single operating fan is equal to the second consumed biomass mass divided by the second accumulated operating time. Using the actual consumed biomass mass accurately represents the amount of energy consumed. Considering the operating time of each operating fan, calculating energy efficiency by accumulating the operating time reduces calculation errors and improves the accuracy of energy efficiency calculations.

[0103] The constraint formula for the initial energy-saving efficiency of a single operating fan within a unit of time is:

[0104]

[0105] Where n is the preset duration, e1 is the normal energy efficiency of a single operating fan within a unit duration, and e2 is the energy-saving efficiency of a single operating fan within a unit duration.

[0106] By removing the maximum and minimum values ​​from all initial energy-saving efficiencies and then summing them up and taking the average, the error in the target energy-saving efficiency can be reduced, resulting in a more accurate target energy-saving efficiency.

[0107] According to the energy efficiency testing device of this invention, by activating the energy-saving mode of the central air conditioning energy-saving system, the device acquires and calculates the mass of biomass consumed within a preset time period and the first cumulative running time of multiple operating fans under the energy-saving mode, thereby obtaining the energy-saving efficiency. Similarly, by activating the normal mode of the central air conditioning energy-saving system, the device acquires and calculates the mass of biomass consumed within a preset time period and the second cumulative running time of multiple operating fans under the normal mode, thereby obtaining the normal energy efficiency. The actual mass of biomass consumed accurately represents the amount of energy consumed. Considering the running time of each operating fan, calculating energy efficiency by accumulating the running time reduces calculation errors and improves the accuracy of energy efficiency calculations. Calculating the energy-saving efficiency under the energy-saving mode and the normal energy efficiency under the normal mode separately provides a very intuitive and accurate representation of the saved electrical energy, resulting in a more accurate target energy-saving efficiency and solving the problem of low accuracy in energy efficiency calculations using traditional statistical methods.

[0108] In some embodiments of the present invention, the detection device includes a weight measuring device, a rotation angle measuring device, and a fan operation detection device. The weight measuring device is used to detect the mass of biomass pushed out per revolution of the feeding drive disc; the rotation angle measuring device is used to detect the number of revolutions of the feeding drive disc; and the fan operation detection device is used to detect the operating status of each operating fan and record the operating time of the operating fan during normal operation.

[0109] The mass of the biomass pushed out per revolution of the feeding drive disk can be pre-calibrated before conducting the energy efficiency test method of this embodiment of the invention. A weight measuring device is set at the material drop position of the feeding drive disk to measure the mass of the biomass pushed out per revolution of the feeding drive disk. The weight measuring device can be a balance, electronic scale, or other weighing equipment.

[0110] The rotation angle detection device can use a rotary encoder to measure the rotation angle of the feeding drive disk, specifically three sets of infrared photoelectric encoders. The three sets of infrared photoelectric encoders are equally spaced on the rotation shaft of the feeding drive disk. These three sets of encoders facilitate accurate detection of the rotation angle of the feeding drive disk when it has not rotated an integer number of revolutions. It should be noted that the specific number and position of the infrared photoelectric encoders can be selected according to actual needs, as long as they can accurately detect the rotation angle of the feeding drive disk; this should not be considered a limitation of the invention.

[0111] The wind turbine operation monitoring device can be a distributed sub-control system electrically connected to the main control unit, used to monitor the operating status of each operating wind turbine and record the operating duration of each wind turbine during normal operation. It should be noted that the specific structure of the wind turbine operation monitoring device can be selected according to actual needs, as long as it can achieve the corresponding functions; no specific limitations are made here.

[0112] Furthermore, the main control unit in this embodiment of the invention includes: a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor and the memory can be connected via a bus or other means.

[0113] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0114] The non-transient software program and instructions required to implement the energy efficiency testing method of the above embodiments are stored in memory. When executed by the processor, the energy efficiency testing method of the above embodiments is executed.

[0115] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0116] Furthermore, a 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 aforementioned main control unit, such that the processor performs the energy-saving efficiency testing method described in the above embodiments.

[0117] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can 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 can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0118] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A method for testing energy efficiency, characterized in that, This invention is applied to a central air conditioning energy-saving system, which has an energy-saving mode and a normal mode. The central air conditioning energy-saving system includes a central air conditioning unit and a biomass boiler. The central air conditioning unit includes multiple operating fans. The biomass boiler includes a biomass charging hopper, a feeding drive disc, and a combustion boiler. The feeding drive disc is used to rotate and send the biomass material leaking from the biomass charging hopper to the combustion boiler for combustion and heating. The energy efficiency testing method includes the following steps: In response to the energy-saving system activation command, the energy-saving mode of the central air conditioning energy-saving system is activated; The mass of biomass pushed out per revolution of the feeding drive disk, the first number of revolutions of the feeding drive disk within a preset time period, and the first cumulative running time of the multiple operating fans are obtained. The first mass of biomass consumed within the preset time period is determined based on the mass of biomass in a single rotation and the number of the first rotations within the preset time period. The energy efficiency of a single operating fan is determined based on the first mass of biomass consumed within the preset time period and the first cumulative running time. In response to the normal system start command, the normal mode of the central air conditioning energy-saving system is activated; Obtain the second number of rotations of the feeding drive disc and the second cumulative operating time of the multiple operating fans within the preset time period; The second mass of biomass consumed within the preset time period is determined based on the mass of biomass in a single rotation and the number of the second rotations within the preset time period. The general energy efficiency of a single operating fan is determined based on the second consumed biomass mass and the second accumulated operating time within the preset time period; The target energy efficiency is determined based on the energy-saving efficiency and the ordinary energy efficiency of a single operating fan.

2. The energy efficiency testing method according to claim 1, characterized in that, Determining the target energy efficiency based on the energy-saving efficiency and the ordinary energy efficiency of a single operating fan includes the following steps: Based on the energy-saving efficiency and ordinary energy efficiency of a single operating fan, the initial energy-saving efficiency of a single operating fan within a unit time is determined until the preset time is reached, thus obtaining multiple initial energy-saving efficiencies. The target energy efficiency is determined based on multiple initial energy efficiency values.

3. The energy efficiency testing method according to claim 2, characterized in that, Determining the target energy efficiency based on multiple initial energy efficiency values ​​includes the following steps: Remove the maximum and minimum values ​​from all the initial energy-saving efficiencies to obtain the remaining energy-saving efficiency parameter set, which includes multiple initial energy-saving efficiencies; The target energy efficiency is obtained by summing all the initial energy efficiencies in the remaining energy efficiency parameter group and taking the average value.

4. The energy efficiency testing method according to claim 1, characterized in that, The biomass loading funnel is equipped with a material level monitoring device, which is used to detect the material level of the biomass in the biomass loading funnel; the energy efficiency testing method further includes the following steps: Obtain the biomass material level; A material shortage alarm signal is generated based on the biomass level and the preset material shortage level to provide a material shortage warning.

5. An energy efficiency testing device, characterized in that, This invention is applied to a central air conditioning energy-saving system, which includes a central air conditioning unit and a biomass boiler. The central air conditioning unit includes multiple operating fans, and the biomass boiler includes a biomass charging hopper, a feeding drive disc, and a combustion boiler. The feeding drive disc is used to rotate and send the biomass material leaking out of the biomass charging hopper to the combustion boiler for combustion and heating. The energy efficiency testing device includes: The detection device is used to detect the mass of single-circle biological material pushed out by the feeding drive disc in one rotation, the number of rotations of the feeding drive disc, and the running time of each of the operating fans. The main control unit is electrically connected to the detection device and is used to execute the energy efficiency testing method as described in any one of claims 1 to 4.

6. The energy efficiency testing device according to claim 5, characterized in that, The detection device includes: A weight measuring device is used to detect the mass of the single ring of biological material pushed out by the feeding drive disk for each rotation. A rotation angle detection device is used to detect the number of rotations of the feeding drive disc; A fan operation detection device is used to detect the operating status of each of the operating fans and record the operating time of the operating fans during normal operation.

7. A central air conditioning energy-saving system, characterized in that, Includes the energy efficiency testing device as described in claim 5 or 6.

8. A computer-readable storage medium storing computer-executable instructions, characterized in that, The computer-executable instructions are used to execute the energy efficiency testing method as described in any one of claims 1 to 4.

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